Repository: kkroening/ffmpeg-python Branch: master Commit: df129c7ba30a Files: 59 Total size: 690.7 KB Directory structure: gitextract_pycpuraa/ ├── .github/ │ └── workflows/ │ └── ci.yml ├── .gitignore ├── LICENSE ├── MANIFEST ├── README.md ├── doc/ │ ├── .gitignore │ ├── Makefile │ ├── formula.xcf │ ├── html/ │ │ ├── .buildinfo │ │ ├── _sources/ │ │ │ └── index.rst.txt │ │ ├── _static/ │ │ │ ├── basic.css │ │ │ ├── doctools.js │ │ │ ├── documentation_options.js │ │ │ ├── jquery-3.2.1.js │ │ │ ├── jquery.js │ │ │ ├── language_data.js │ │ │ ├── nature.css │ │ │ ├── pygments.css │ │ │ ├── searchtools.js │ │ │ ├── underscore-1.3.1.js │ │ │ └── underscore.js │ │ ├── genindex.html │ │ ├── index.html │ │ ├── objects.inv │ │ ├── py-modindex.html │ │ ├── search.html │ │ └── searchindex.js │ ├── logo.xcf │ ├── src/ │ │ ├── conf.py │ │ └── index.rst │ └── update-gh-pages.sh ├── examples/ │ ├── README.md │ ├── facetime.py │ ├── ffmpeg-numpy.ipynb │ ├── get_video_thumbnail.py │ ├── read_frame_as_jpeg.py │ ├── requirements.txt │ ├── show_progress.py │ ├── split_silence.py │ ├── tensorflow_stream.py │ ├── transcribe.py │ └── video_info.py ├── ffmpeg/ │ ├── __init__.py │ ├── _ffmpeg.py │ ├── _filters.py │ ├── _probe.py │ ├── _run.py │ ├── _utils.py │ ├── _view.py │ ├── dag.py │ ├── nodes.py │ └── tests/ │ ├── __init__.py │ └── test_ffmpeg.py ├── pyproject.toml ├── pytest.ini ├── requirements.txt ├── setup.cfg ├── setup.py └── tox.ini ================================================ FILE CONTENTS ================================================ ================================================ FILE: .github/workflows/ci.yml ================================================ name: CI on: - push - pull_request jobs: test: runs-on: ubuntu-20.04 strategy: fail-fast: false matrix: python-version: - "2.7" - "3.5" - "3.6" - "3.7" - "3.8" - "3.9" - "3.10" steps: - uses: actions/checkout@v3 - name: Set up Python ${{ matrix.python-version }} uses: actions/setup-python@v4 with: python-version: ${{ matrix.python-version }} - name: Install ffmpeg run: | sudo apt update sudo apt install ffmpeg - name: Setup pip + tox run: | python -m pip install --upgrade \ "pip==20.3.4; python_version < '3.6'" \ "pip==21.3.1; python_version >= '3.6'" python -m pip install tox==3.24.5 tox-gh-actions==2.9.1 - name: Test with tox run: tox black: runs-on: ubuntu-20.04 steps: - uses: actions/checkout@v3 - name: Black run: | # TODO: use standard `psf/black` action after dropping Python 2 support. pip install black==21.12b0 click==8.0.2 # https://stackoverflow.com/questions/71673404 black ffmpeg --check --color --diff ================================================ FILE: .gitignore ================================================ .cache .eggs .tox/ dist/ ffmpeg/tests/sample_data/out*.mp4 ffmpeg_python.egg-info/ venv* build/ ================================================ FILE: LICENSE ================================================ Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. 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We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright 2017 Karl Kroening Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ================================================ FILE: MANIFEST ================================================ # file GENERATED by distutils, do NOT edit README setup.py ffmpeg/__init__.py ffmpeg/_ffmpeg.py ffmpeg/_filters.py ffmpeg/_run.py ffmpeg/nodes.py ================================================ FILE: README.md ================================================ # ffmpeg-python: Python bindings for FFmpeg [![CI][ci-badge]][ci] [ci-badge]: https://github.com/kkroening/ffmpeg-python/actions/workflows/ci.yml/badge.svg [ci]: https://github.com/kkroening/ffmpeg-python/actions/workflows/ci.yml ffmpeg-python logo ## Overview There are tons of Python FFmpeg wrappers out there but they seem to lack complex filter support. `ffmpeg-python` works well for simple as well as complex signal graphs. ## Quickstart Flip a video horizontally: ```python import ffmpeg stream = ffmpeg.input('input.mp4') stream = ffmpeg.hflip(stream) stream = ffmpeg.output(stream, 'output.mp4') ffmpeg.run(stream) ``` Or if you prefer a fluent interface: ```python import ffmpeg ( ffmpeg .input('input.mp4') .hflip() .output('output.mp4') .run() ) ``` ## [API reference](https://kkroening.github.io/ffmpeg-python/) ## Complex filter graphs FFmpeg is extremely powerful, but its command-line interface gets really complicated rather quickly - especially when working with signal graphs and doing anything more than trivial. Take for example a signal graph that looks like this: ![Signal graph](https://raw.githubusercontent.com/kkroening/ffmpeg-python/master/doc/graph1.png) The corresponding command-line arguments are pretty gnarly: ```bash ffmpeg -i input.mp4 -i overlay.png -filter_complex "[0]trim=start_frame=10:end_frame=20[v0];\ [0]trim=start_frame=30:end_frame=40[v1];[v0][v1]concat=n=2[v2];[1]hflip[v3];\ [v2][v3]overlay=eof_action=repeat[v4];[v4]drawbox=50:50:120:120:red:t=5[v5]"\ -map [v5] output.mp4 ``` Maybe this looks great to you, but if you're not an FFmpeg command-line expert, it probably looks alien. If you're like me and find Python to be powerful and readable, it's easier with `ffmpeg-python`: ```python import ffmpeg in_file = ffmpeg.input('input.mp4') overlay_file = ffmpeg.input('overlay.png') ( ffmpeg .concat( in_file.trim(start_frame=10, end_frame=20), in_file.trim(start_frame=30, end_frame=40), ) .overlay(overlay_file.hflip()) .drawbox(50, 50, 120, 120, color='red', thickness=5) .output('out.mp4') .run() ) ``` `ffmpeg-python` takes care of running `ffmpeg` with the command-line arguments that correspond to the above filter diagram, in familiar Python terms. Screenshot Real-world signal graphs can get a heck of a lot more complex, but `ffmpeg-python` handles arbitrarily large (directed-acyclic) signal graphs. ## Installation ### Installing `ffmpeg-python` The latest version of `ffmpeg-python` can be acquired via a typical pip install: ```bash pip install ffmpeg-python ``` Or the source can be cloned and installed from locally: ```bash git clone git@github.com:kkroening/ffmpeg-python.git pip install -e ./ffmpeg-python ``` > **Note**: `ffmpeg-python` makes no attempt to download/install FFmpeg, as `ffmpeg-python` is merely a pure-Python wrapper - whereas FFmpeg installation is platform-dependent/environment-specific, and is thus the responsibility of the user, as described below. ### Installing FFmpeg Before using `ffmpeg-python`, FFmpeg must be installed and accessible via the `$PATH` environment variable. There are a variety of ways to install FFmpeg, such as the [official download links](https://ffmpeg.org/download.html), or using your package manager of choice (e.g. `sudo apt install ffmpeg` on Debian/Ubuntu, `brew install ffmpeg` on OS X, etc.). Regardless of how FFmpeg is installed, you can check if your environment path is set correctly by running the `ffmpeg` command from the terminal, in which case the version information should appear, as in the following example (truncated for brevity): ``` $ ffmpeg ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9 (Ubuntu 9.3.0-10ubuntu2) ``` > **Note**: The actual version information displayed here may vary from one system to another; but if a message such as `ffmpeg: command not found` appears instead of the version information, FFmpeg is not properly installed. ## [Examples](https://github.com/kkroening/ffmpeg-python/tree/master/examples) When in doubt, take a look at the [examples](https://github.com/kkroening/ffmpeg-python/tree/master/examples) to see if there's something that's close to whatever you're trying to do. Here are a few: - [Convert video to numpy array](https://github.com/kkroening/ffmpeg-python/blob/master/examples/README.md#convert-video-to-numpy-array) - [Generate thumbnail for video](https://github.com/kkroening/ffmpeg-python/blob/master/examples/README.md#generate-thumbnail-for-video) - [Read raw PCM audio via pipe](https://github.com/kkroening/ffmpeg-python/blob/master/examples/README.md#convert-sound-to-raw-pcm-audio) - [JupyterLab/Notebook stream editor](https://github.com/kkroening/ffmpeg-python/blob/master/examples/README.md#jupyter-stream-editor) jupyter demo - [Tensorflow/DeepDream streaming](https://github.com/kkroening/ffmpeg-python/blob/master/examples/README.md#tensorflow-streaming) deep dream streaming See the [Examples README](https://github.com/kkroening/ffmpeg-python/tree/master/examples) for additional examples. ## Custom Filters Don't see the filter you're looking for? While `ffmpeg-python` includes shorthand notation for some of the most commonly used filters (such as `concat`), all filters can be referenced via the `.filter` operator: ```python stream = ffmpeg.input('dummy.mp4') stream = ffmpeg.filter(stream, 'fps', fps=25, round='up') stream = ffmpeg.output(stream, 'dummy2.mp4') ffmpeg.run(stream) ``` Or fluently: ```python ( ffmpeg .input('dummy.mp4') .filter('fps', fps=25, round='up') .output('dummy2.mp4') .run() ) ``` **Special option names:** Arguments with special names such as `-qscale:v` (variable bitrate), `-b:v` (constant bitrate), etc. can be specified as a keyword-args dictionary as follows: ```python ( ffmpeg .input('in.mp4') .output('out.mp4', **{'qscale:v': 3}) .run() ) ``` **Multiple inputs:** Filters that take multiple input streams can be used by passing the input streams as an array to `ffmpeg.filter`: ```python main = ffmpeg.input('main.mp4') logo = ffmpeg.input('logo.png') ( ffmpeg .filter([main, logo], 'overlay', 10, 10) .output('out.mp4') .run() ) ``` **Multiple outputs:** Filters that produce multiple outputs can be used with `.filter_multi_output`: ```python split = ( ffmpeg .input('in.mp4') .filter_multi_output('split') # or `.split()` ) ( ffmpeg .concat(split[0], split[1].reverse()) .output('out.mp4') .run() ) ``` (In this particular case, `.split()` is the equivalent shorthand, but the general approach works for other multi-output filters) **String expressions:** Expressions to be interpreted by ffmpeg can be included as string parameters and reference any special ffmpeg variable names: ```python ( ffmpeg .input('in.mp4') .filter('crop', 'in_w-2*10', 'in_h-2*20') .input('out.mp4') ) ```
When in doubt, refer to the [existing filters](https://github.com/kkroening/ffmpeg-python/blob/master/ffmpeg/_filters.py), [examples](https://github.com/kkroening/ffmpeg-python/tree/master/examples), and/or the [official ffmpeg documentation](https://ffmpeg.org/ffmpeg-filters.html). ## Frequently asked questions **Why do I get an import/attribute/etc. error from `import ffmpeg`?** Make sure you ran `pip install ffmpeg-python` and _**not**_ `pip install ffmpeg` (wrong) or `pip install python-ffmpeg` (also wrong). **Why did my audio stream get dropped?** Some ffmpeg filters drop audio streams, and care must be taken to preserve the audio in the final output. The ``.audio`` and ``.video`` operators can be used to reference the audio/video portions of a stream so that they can be processed separately and then re-combined later in the pipeline. This dilemma is intrinsic to ffmpeg, and ffmpeg-python tries to stay out of the way while users may refer to the official ffmpeg documentation as to why certain filters drop audio. As usual, take a look at the [examples](https://github.com/kkroening/ffmpeg-python/tree/master/examples#audiovideo-pipeline) (*Audio/video pipeline* in particular). **How can I find out the used command line arguments?** You can run `stream.get_args()` before `stream.run()` to retrieve the command line arguments that will be passed to `ffmpeg`. You can also run `stream.compile()` that also includes the `ffmpeg` executable as the first argument. **How do I do XYZ?** Take a look at each of the links in the [Additional Resources](https://kkroening.github.io/ffmpeg-python/) section at the end of this README. If you look everywhere and can't find what you're looking for and have a question that may be relevant to other users, you may open an issue asking how to do it, while providing a thorough explanation of what you're trying to do and what you've tried so far. Issues not directly related to `ffmpeg-python` or issues asking others to write your code for you or how to do the work of solving a complex signal processing problem for you that's not relevant to other users will be closed. That said, we hope to continue improving our documentation and provide a community of support for people using `ffmpeg-python` to do cool and exciting things. ## Contributing ffmpeg-python logo One of the best things you can do to help make `ffmpeg-python` better is to answer [open questions](https://github.com/kkroening/ffmpeg-python/labels/question) in the issue tracker. The questions that are answered will be tagged and incorporated into the documentation, examples, and other learning resources. If you notice things that could be better in the documentation or overall development experience, please say so in the [issue tracker](https://github.com/kkroening/ffmpeg-python/issues). And of course, feel free to report any bugs or submit feature requests. Pull requests are welcome as well, but it wouldn't hurt to touch base in the issue tracker or hop on the [Matrix chat channel](https://riot.im/app/#/room/#ffmpeg-python:matrix.org) first. Anyone who fixes any of the [open bugs](https://github.com/kkroening/ffmpeg-python/labels/bug) or implements [requested enhancements](https://github.com/kkroening/ffmpeg-python/labels/enhancement) is a hero, but changes should include passing tests. ### Running tests ```bash git clone git@github.com:kkroening/ffmpeg-python.git cd ffmpeg-python virtualenv venv . venv/bin/activate # (OS X / Linux) venv\bin\activate # (Windows) pip install -e .[dev] pytest ```
### Special thanks - [Fabrice Bellard](https://bellard.org/) - [The FFmpeg team](https://ffmpeg.org/donations.html) - [Arne de Laat](https://github.com/153957) - [Davide Depau](https://github.com/depau) - [Dim](https://github.com/lloti) - [Noah Stier](https://github.com/noahstier) ## Additional Resources - [API Reference](https://kkroening.github.io/ffmpeg-python/) - [Examples](https://github.com/kkroening/ffmpeg-python/tree/master/examples) - [Filters](https://github.com/kkroening/ffmpeg-python/blob/master/ffmpeg/_filters.py) - [FFmpeg Homepage](https://ffmpeg.org/) - [FFmpeg Documentation](https://ffmpeg.org/ffmpeg.html) - [FFmpeg Filters Documentation](https://ffmpeg.org/ffmpeg-filters.html) - [Test cases](https://github.com/kkroening/ffmpeg-python/blob/master/ffmpeg/tests/test_ffmpeg.py) - [Issue tracker](https://github.com/kkroening/ffmpeg-python/issues) - Matrix Chat: [#ffmpeg-python:matrix.org](https://riot.im/app/#/room/#ffmpeg-python:matrix.org) ================================================ FILE: doc/.gitignore ================================================ doctrees gh-pages ================================================ FILE: doc/Makefile ================================================ # Minimal makefile for Sphinx documentation # # You can set these variables from the command line. SPHINXOPTS = SPHINXBUILD = python -msphinx SPHINXPROJ = ffmpeg-python SOURCEDIR = src BUILDDIR = . # Put it first so that "make" without argument is like "make help". help: @$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O) .PHONY: help Makefile # Catch-all target: route all unknown targets to Sphinx using the new # "make mode" option. $(O) is meant as a shortcut for $(SPHINXOPTS). %: Makefile @rm -rf html doctrees @$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O) update-gh-pages: @./update-gh-pages.sh ================================================ FILE: doc/html/.buildinfo ================================================ # Sphinx build info version 1 # This file hashes the configuration used when building these files. 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} div.sphinxsidebar #searchbox input[type="text"] { float: left; width: 80%; padding: 0.25em; box-sizing: border-box; } div.sphinxsidebar #searchbox input[type="submit"] { float: left; width: 20%; border-left: none; padding: 0.25em; box-sizing: border-box; } img { border: 0; max-width: 100%; } /* -- search page ----------------------------------------------------------- */ ul.search { margin: 10px 0 0 20px; padding: 0; } ul.search li { padding: 5px 0 5px 20px; background-image: url(file.png); background-repeat: no-repeat; background-position: 0 7px; } ul.search li a { font-weight: bold; } ul.search li div.context { color: #888; margin: 2px 0 0 30px; text-align: left; } ul.keywordmatches li.goodmatch a { font-weight: bold; } /* -- index page ------------------------------------------------------------ */ table.contentstable { width: 90%; margin-left: auto; margin-right: auto; } table.contentstable p.biglink { line-height: 150%; } a.biglink { font-size: 1.3em; } span.linkdescr { font-style: italic; padding-top: 5px; font-size: 90%; } /* -- general index --------------------------------------------------------- */ table.indextable { width: 100%; } table.indextable td { text-align: left; vertical-align: top; } table.indextable ul { margin-top: 0; margin-bottom: 0; list-style-type: none; } table.indextable > tbody > tr > td > ul { padding-left: 0em; } table.indextable tr.pcap { height: 10px; } table.indextable tr.cap { margin-top: 10px; background-color: #f2f2f2; } img.toggler { margin-right: 3px; margin-top: 3px; cursor: pointer; } div.modindex-jumpbox { border-top: 1px solid #ddd; border-bottom: 1px solid #ddd; margin: 1em 0 1em 0; padding: 0.4em; } div.genindex-jumpbox { border-top: 1px solid #ddd; border-bottom: 1px solid #ddd; margin: 1em 0 1em 0; padding: 0.4em; } /* -- domain module index --------------------------------------------------- */ table.modindextable td { padding: 2px; border-collapse: collapse; } /* -- general body styles --------------------------------------------------- */ div.body { min-width: 450px; max-width: 800px; } div.body p, div.body dd, div.body li, div.body blockquote { -moz-hyphens: auto; -ms-hyphens: auto; -webkit-hyphens: auto; hyphens: auto; } a.headerlink { visibility: hidden; } a.brackets:before, span.brackets > a:before{ content: "["; } a.brackets:after, span.brackets > a:after { content: "]"; } h1:hover > a.headerlink, h2:hover > a.headerlink, h3:hover > a.headerlink, h4:hover > a.headerlink, h5:hover > a.headerlink, h6:hover > a.headerlink, dt:hover > a.headerlink, caption:hover > a.headerlink, p.caption:hover > a.headerlink, div.code-block-caption:hover > a.headerlink { visibility: visible; } div.body p.caption { text-align: inherit; } div.body td { text-align: left; } .first { margin-top: 0 !important; } p.rubric { margin-top: 30px; font-weight: bold; } img.align-left, .figure.align-left, object.align-left { clear: left; float: left; margin-right: 1em; } img.align-right, .figure.align-right, object.align-right { clear: right; float: right; margin-left: 1em; } img.align-center, .figure.align-center, object.align-center { display: block; margin-left: auto; margin-right: auto; } img.align-default, .figure.align-default { display: block; margin-left: auto; margin-right: auto; } .align-left { text-align: left; } .align-center { text-align: center; } .align-default { text-align: center; } .align-right { text-align: right; } /* -- sidebars -------------------------------------------------------------- */ div.sidebar { margin: 0 0 0.5em 1em; border: 1px solid #ddb; padding: 7px 7px 0 7px; background-color: #ffe; width: 40%; float: right; } p.sidebar-title { font-weight: bold; } /* -- topics ---------------------------------------------------------------- */ div.topic { border: 1px solid #ccc; padding: 7px 7px 0 7px; margin: 10px 0 10px 0; } p.topic-title { font-size: 1.1em; font-weight: bold; margin-top: 10px; } /* -- admonitions ----------------------------------------------------------- */ div.admonition { margin-top: 10px; margin-bottom: 10px; padding: 7px; } div.admonition dt { font-weight: bold; } div.admonition dl { margin-bottom: 0; } p.admonition-title { margin: 0px 10px 5px 0px; font-weight: bold; } div.body p.centered { text-align: center; margin-top: 25px; } /* -- tables ---------------------------------------------------------------- */ table.docutils { border: 0; border-collapse: collapse; } table.align-center { margin-left: auto; margin-right: auto; } table.align-default { margin-left: auto; margin-right: auto; } table caption span.caption-number { font-style: italic; } table caption span.caption-text { } table.docutils td, table.docutils th { padding: 1px 8px 1px 5px; border-top: 0; border-left: 0; border-right: 0; border-bottom: 1px solid #aaa; } table.footnote td, table.footnote th { border: 0 !important; } th { text-align: left; padding-right: 5px; } table.citation { border-left: solid 1px gray; margin-left: 1px; } table.citation td { border-bottom: none; } th > p:first-child, td > p:first-child { margin-top: 0px; } th > p:last-child, td > p:last-child { margin-bottom: 0px; } /* -- figures --------------------------------------------------------------- */ div.figure { margin: 0.5em; padding: 0.5em; } div.figure p.caption { padding: 0.3em; } div.figure p.caption span.caption-number { font-style: italic; } div.figure p.caption span.caption-text { } /* -- field list styles ----------------------------------------------------- */ table.field-list td, table.field-list th { border: 0 !important; } .field-list ul { margin: 0; padding-left: 1em; } .field-list p { margin: 0; } .field-name { -moz-hyphens: manual; -ms-hyphens: manual; -webkit-hyphens: manual; hyphens: manual; } /* -- hlist styles ---------------------------------------------------------- */ table.hlist td { vertical-align: top; } /* -- other body styles ----------------------------------------------------- */ ol.arabic { list-style: decimal; } ol.loweralpha { list-style: lower-alpha; } ol.upperalpha { list-style: upper-alpha; } ol.lowerroman { list-style: lower-roman; } ol.upperroman { list-style: upper-roman; } li > p:first-child { margin-top: 0px; } li > p:last-child { margin-bottom: 0px; } dl.footnote > dt, dl.citation > dt { float: left; } dl.footnote > dd, dl.citation > dd { margin-bottom: 0em; } dl.footnote > dd:after, dl.citation > dd:after { content: ""; clear: both; } dl.field-list { display: flex; flex-wrap: wrap; } dl.field-list > dt { flex-basis: 20%; font-weight: bold; word-break: break-word; } dl.field-list > dt:after { content: ":"; } dl.field-list > dd { flex-basis: 70%; padding-left: 1em; margin-left: 0em; margin-bottom: 0em; } dl { margin-bottom: 15px; } dd > p:first-child { margin-top: 0px; } dd ul, dd table { margin-bottom: 10px; } dd { margin-top: 3px; margin-bottom: 10px; margin-left: 30px; } dt:target, span.highlighted { background-color: #fbe54e; } rect.highlighted { fill: #fbe54e; } dl.glossary dt { font-weight: bold; font-size: 1.1em; } .optional { font-size: 1.3em; } .sig-paren { font-size: larger; } .versionmodified { font-style: italic; } .system-message { background-color: #fda; padding: 5px; border: 3px solid red; } .footnote:target { background-color: #ffa; } .line-block { display: block; margin-top: 1em; margin-bottom: 1em; } .line-block .line-block { margin-top: 0; margin-bottom: 0; margin-left: 1.5em; } .guilabel, .menuselection { font-family: sans-serif; } .accelerator { text-decoration: underline; } .classifier { font-style: oblique; } .classifier:before { font-style: normal; margin: 0.5em; content: ":"; } abbr, acronym { border-bottom: dotted 1px; cursor: help; } /* -- code displays --------------------------------------------------------- */ pre { overflow: auto; overflow-y: hidden; /* fixes display issues on Chrome browsers */ } span.pre { -moz-hyphens: none; -ms-hyphens: none; -webkit-hyphens: none; hyphens: none; } td.linenos pre { padding: 5px 0px; border: 0; background-color: transparent; color: #aaa; } table.highlighttable { margin-left: 0.5em; } table.highlighttable td { padding: 0 0.5em 0 0.5em; } div.code-block-caption { padding: 2px 5px; font-size: small; } div.code-block-caption code { background-color: transparent; } div.code-block-caption + div > div.highlight > pre { margin-top: 0; } div.code-block-caption span.caption-number { padding: 0.1em 0.3em; font-style: italic; } div.code-block-caption span.caption-text { } div.literal-block-wrapper { padding: 1em 1em 0; } div.literal-block-wrapper div.highlight { margin: 0; } code.descname { background-color: transparent; font-weight: bold; font-size: 1.2em; } code.descclassname { background-color: transparent; } code.xref, a code { background-color: transparent; font-weight: bold; } h1 code, h2 code, h3 code, h4 code, h5 code, h6 code { background-color: transparent; } .viewcode-link { float: right; } .viewcode-back { float: right; font-family: sans-serif; } div.viewcode-block:target { margin: -1px -10px; padding: 0 10px; } /* -- math display ---------------------------------------------------------- */ img.math { vertical-align: middle; } div.body div.math p { text-align: center; } span.eqno { float: right; } span.eqno a.headerlink { position: relative; left: 0px; z-index: 1; } div.math:hover a.headerlink { visibility: visible; } /* -- printout stylesheet --------------------------------------------------- */ @media print { div.document, div.documentwrapper, div.bodywrapper { margin: 0 !important; width: 100%; } div.sphinxsidebar, div.related, div.footer, #top-link { display: none; } } ================================================ FILE: doc/html/_static/doctools.js ================================================ /* * doctools.js * ~~~~~~~~~~~ * * Sphinx JavaScript utilities for all documentation. * * :copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS. * :license: BSD, see LICENSE for details. * */ /** * select a different prefix for underscore */ $u = _.noConflict(); /** * make the code below compatible with browsers without * an installed firebug like debugger if (!window.console || !console.firebug) { var names = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml", "group", "groupEnd", "time", "timeEnd", "count", "trace", "profile", "profileEnd"]; window.console = {}; for (var i = 0; i < names.length; ++i) window.console[names[i]] = function() {}; } */ /** * small helper function to urldecode strings */ jQuery.urldecode = function(x) { return decodeURIComponent(x).replace(/\+/g, ' '); }; /** * small helper function to urlencode strings */ jQuery.urlencode = encodeURIComponent; /** * This function returns the parsed url parameters of the * current request. Multiple values per key are supported, * it will always return arrays of strings for the value parts. */ jQuery.getQueryParameters = function(s) { if (typeof s === 'undefined') s = document.location.search; var parts = s.substr(s.indexOf('?') + 1).split('&'); var result = {}; for (var i = 0; i < parts.length; i++) { var tmp = parts[i].split('=', 2); var key = jQuery.urldecode(tmp[0]); var value = jQuery.urldecode(tmp[1]); if (key in result) result[key].push(value); else result[key] = [value]; } return result; }; /** * highlight a given string on a jquery object by wrapping it in * span elements with the given class name. */ jQuery.fn.highlightText = function(text, className) { function highlight(node, addItems) { if (node.nodeType === 3) { var val = node.nodeValue; var pos = val.toLowerCase().indexOf(text); if (pos >= 0 && !jQuery(node.parentNode).hasClass(className) && !jQuery(node.parentNode).hasClass("nohighlight")) { var span; var isInSVG = jQuery(node).closest("body, svg, foreignObject").is("svg"); if (isInSVG) { span = document.createElementNS("http://www.w3.org/2000/svg", "tspan"); } else { span = document.createElement("span"); span.className = className; } span.appendChild(document.createTextNode(val.substr(pos, text.length))); node.parentNode.insertBefore(span, node.parentNode.insertBefore( document.createTextNode(val.substr(pos + text.length)), node.nextSibling)); node.nodeValue = val.substr(0, pos); if (isInSVG) { var rect = document.createElementNS("http://www.w3.org/2000/svg", "rect"); var bbox = node.parentElement.getBBox(); rect.x.baseVal.value = bbox.x; rect.y.baseVal.value = bbox.y; rect.width.baseVal.value = bbox.width; rect.height.baseVal.value = bbox.height; rect.setAttribute('class', className); addItems.push({ "parent": node.parentNode, "target": rect}); } } } else if (!jQuery(node).is("button, select, textarea")) { jQuery.each(node.childNodes, function() { highlight(this, addItems); }); } } var addItems = []; var result = this.each(function() { highlight(this, addItems); }); for (var i = 0; i < addItems.length; ++i) { jQuery(addItems[i].parent).before(addItems[i].target); } return result; }; /* * backward compatibility for jQuery.browser * This will be supported until firefox bug is fixed. */ if (!jQuery.browser) { jQuery.uaMatch = function(ua) { ua = ua.toLowerCase(); var match = /(chrome)[ \/]([\w.]+)/.exec(ua) || /(webkit)[ \/]([\w.]+)/.exec(ua) || /(opera)(?:.*version|)[ \/]([\w.]+)/.exec(ua) || /(msie) ([\w.]+)/.exec(ua) || ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua) || []; return { browser: match[ 1 ] || "", version: match[ 2 ] || "0" }; }; jQuery.browser = {}; jQuery.browser[jQuery.uaMatch(navigator.userAgent).browser] = true; } /** * Small JavaScript module for the documentation. */ var Documentation = { init : function() { this.fixFirefoxAnchorBug(); this.highlightSearchWords(); this.initIndexTable(); if (DOCUMENTATION_OPTIONS.NAVIGATION_WITH_KEYS) { this.initOnKeyListeners(); } }, /** * i18n support */ TRANSLATIONS : {}, PLURAL_EXPR : function(n) { return n === 1 ? 0 : 1; }, LOCALE : 'unknown', // gettext and ngettext don't access this so that the functions // can safely bound to a different name (_ = Documentation.gettext) gettext : function(string) { var translated = Documentation.TRANSLATIONS[string]; if (typeof translated === 'undefined') return string; return (typeof translated === 'string') ? translated : translated[0]; }, ngettext : function(singular, plural, n) { var translated = Documentation.TRANSLATIONS[singular]; if (typeof translated === 'undefined') return (n == 1) ? singular : plural; return translated[Documentation.PLURALEXPR(n)]; }, addTranslations : function(catalog) { for (var key in catalog.messages) this.TRANSLATIONS[key] = catalog.messages[key]; this.PLURAL_EXPR = new Function('n', 'return +(' + catalog.plural_expr + ')'); this.LOCALE = catalog.locale; }, /** * add context elements like header anchor links */ addContextElements : function() { $('div[id] > :header:first').each(function() { $('\u00B6'). attr('href', '#' + this.id). attr('title', _('Permalink to this headline')). appendTo(this); }); $('dt[id]').each(function() { $('\u00B6'). attr('href', '#' + this.id). attr('title', _('Permalink to this definition')). appendTo(this); }); }, /** * workaround a firefox stupidity * see: https://bugzilla.mozilla.org/show_bug.cgi?id=645075 */ fixFirefoxAnchorBug : function() { if (document.location.hash && $.browser.mozilla) window.setTimeout(function() { document.location.href += ''; }, 10); }, /** * highlight the search words provided in the url in the text */ highlightSearchWords : function() { var params = $.getQueryParameters(); var terms = (params.highlight) ? params.highlight[0].split(/\s+/) : []; if (terms.length) { var body = $('div.body'); if (!body.length) { body = $('body'); } window.setTimeout(function() { $.each(terms, function() { body.highlightText(this.toLowerCase(), 'highlighted'); }); }, 10); $('') .appendTo($('#searchbox')); } }, /** * init the domain index toggle buttons */ initIndexTable : function() { var togglers = $('img.toggler').click(function() { var src = $(this).attr('src'); var idnum = $(this).attr('id').substr(7); $('tr.cg-' + idnum).toggle(); if (src.substr(-9) === 'minus.png') $(this).attr('src', src.substr(0, src.length-9) + 'plus.png'); else $(this).attr('src', src.substr(0, src.length-8) + 'minus.png'); }).css('display', ''); if (DOCUMENTATION_OPTIONS.COLLAPSE_INDEX) { togglers.click(); } }, /** * helper function to hide the search marks again */ hideSearchWords : function() { $('#searchbox .highlight-link').fadeOut(300); $('span.highlighted').removeClass('highlighted'); }, /** * make the url absolute */ makeURL : function(relativeURL) { return DOCUMENTATION_OPTIONS.URL_ROOT + '/' + relativeURL; }, /** * get the current relative url */ getCurrentURL : function() { var path = document.location.pathname; var parts = path.split(/\//); $.each(DOCUMENTATION_OPTIONS.URL_ROOT.split(/\//), function() { if (this === '..') parts.pop(); }); var url = parts.join('/'); return path.substring(url.lastIndexOf('/') + 1, path.length - 1); }, initOnKeyListeners: function() { $(document).keyup(function(event) { var activeElementType = document.activeElement.tagName; // don't navigate when in search box or textarea if (activeElementType !== 'TEXTAREA' && activeElementType !== 'INPUT' && activeElementType !== 'SELECT') { switch (event.keyCode) { case 37: // left var prevHref = $('link[rel="prev"]').prop('href'); if (prevHref) { window.location.href = prevHref; return false; } case 39: // right var nextHref = $('link[rel="next"]').prop('href'); if (nextHref) { window.location.href = nextHref; return false; } } } }); } }; // quick alias for translations _ = Documentation.gettext; $(document).ready(function() { Documentation.init(); }); ================================================ FILE: doc/html/_static/documentation_options.js ================================================ var DOCUMENTATION_OPTIONS = { URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'), VERSION: '', LANGUAGE: 'None', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true, SOURCELINK_SUFFIX: '.txt', NAVIGATION_WITH_KEYS: false }; ================================================ FILE: doc/html/_static/jquery-3.2.1.js ================================================ /*! * jQuery JavaScript Library v3.2.1 * https://jquery.com/ * * Includes Sizzle.js * https://sizzlejs.com/ * * Copyright JS Foundation and other contributors * Released under the MIT license * https://jquery.org/license * * Date: 2017-03-20T18:59Z */ ( function( global, factory ) { "use strict"; if ( typeof module === "object" && typeof module.exports === "object" ) { // For CommonJS and CommonJS-like environments where a proper `window` // is present, execute the factory and get jQuery. // For environments that do not have a `window` with a `document` // (such as Node.js), expose a factory as module.exports. // This accentuates the need for the creation of a real `window`. // e.g. var jQuery = require("jquery")(window); // See ticket #14549 for more info. module.exports = global.document ? factory( global, true ) : function( w ) { if ( !w.document ) { throw new Error( "jQuery requires a window with a document" ); } return factory( w ); }; } else { factory( global ); } // Pass this if window is not defined yet } )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) { // Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1 // throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode // arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common // enough that all such attempts are guarded in a try block. "use strict"; var arr = []; var document = window.document; var getProto = Object.getPrototypeOf; var slice = arr.slice; var concat = arr.concat; var push = arr.push; var indexOf = arr.indexOf; var class2type = {}; var toString = class2type.toString; var hasOwn = class2type.hasOwnProperty; var fnToString = hasOwn.toString; var ObjectFunctionString = fnToString.call( Object ); var support = {}; function DOMEval( code, doc ) { doc = doc || document; var script = doc.createElement( "script" ); script.text = code; doc.head.appendChild( script ).parentNode.removeChild( script ); } /* global Symbol */ // Defining this global in .eslintrc.json would create a danger of using the global // unguarded in another place, it seems safer to define global only for this module var version = "3.2.1", // Define a local copy of jQuery jQuery = function( selector, context ) { // The jQuery object is actually just the init constructor 'enhanced' // Need init if jQuery is called (just allow error to be thrown if not included) return new jQuery.fn.init( selector, context ); }, // Support: Android <=4.0 only // Make sure we trim BOM and NBSP rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, // Matches dashed string for camelizing rmsPrefix = /^-ms-/, rdashAlpha = /-([a-z])/g, // Used by jQuery.camelCase as callback to replace() fcamelCase = function( all, letter ) { return letter.toUpperCase(); }; jQuery.fn = jQuery.prototype = { // The current version of jQuery being used jquery: version, constructor: jQuery, // The default length of a jQuery object is 0 length: 0, toArray: function() { return slice.call( this ); }, // Get the Nth element in the matched element set OR // Get the whole matched element set as a clean array get: function( num ) { // Return all the elements in a clean array if ( num == null ) { return slice.call( this ); } // Return just the one element from the set return num < 0 ? this[ num + this.length ] : this[ num ]; }, // Take an array of elements and push it onto the stack // (returning the new matched element set) pushStack: function( elems ) { // Build a new jQuery matched element set var ret = jQuery.merge( this.constructor(), elems ); // Add the old object onto the stack (as a reference) ret.prevObject = this; // Return the newly-formed element set return ret; }, // Execute a callback for every element in the matched set. each: function( callback ) { return jQuery.each( this, callback ); }, map: function( callback ) { return this.pushStack( jQuery.map( this, function( elem, i ) { return callback.call( elem, i, elem ); } ) ); }, slice: function() { return this.pushStack( slice.apply( this, arguments ) ); }, first: function() { return this.eq( 0 ); }, last: function() { return this.eq( -1 ); }, eq: function( i ) { var len = this.length, j = +i + ( i < 0 ? len : 0 ); return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] ); }, end: function() { return this.prevObject || this.constructor(); }, // For internal use only. // Behaves like an Array's method, not like a jQuery method. push: push, sort: arr.sort, splice: arr.splice }; jQuery.extend = jQuery.fn.extend = function() { var options, name, src, copy, copyIsArray, clone, target = arguments[ 0 ] || {}, i = 1, length = arguments.length, deep = false; // Handle a deep copy situation if ( typeof target === "boolean" ) { deep = target; // Skip the boolean and the target target = arguments[ i ] || {}; i++; } // Handle case when target is a string or something (possible in deep copy) if ( typeof target !== "object" && !jQuery.isFunction( target ) ) { target = {}; } // Extend jQuery itself if only one argument is passed if ( i === length ) { target = this; i--; } for ( ; i < length; i++ ) { // Only deal with non-null/undefined values if ( ( options = arguments[ i ] ) != null ) { // Extend the base object for ( name in options ) { src = target[ name ]; copy = options[ name ]; // Prevent never-ending loop if ( target === copy ) { continue; } // Recurse if we're merging plain objects or arrays if ( deep && copy && ( jQuery.isPlainObject( copy ) || ( copyIsArray = Array.isArray( copy ) ) ) ) { if ( copyIsArray ) { copyIsArray = false; clone = src && Array.isArray( src ) ? src : []; } else { clone = src && jQuery.isPlainObject( src ) ? src : {}; } // Never move original objects, clone them target[ name ] = jQuery.extend( deep, clone, copy ); // Don't bring in undefined values } else if ( copy !== undefined ) { target[ name ] = copy; } } } } // Return the modified object return target; }; jQuery.extend( { // Unique for each copy of jQuery on the page expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ), // Assume jQuery is ready without the ready module isReady: true, error: function( msg ) { throw new Error( msg ); }, noop: function() {}, isFunction: function( obj ) { return jQuery.type( obj ) === "function"; }, isWindow: function( obj ) { return obj != null && obj === obj.window; }, isNumeric: function( obj ) { // As of jQuery 3.0, isNumeric is limited to // strings and numbers (primitives or objects) // that can be coerced to finite numbers (gh-2662) var type = jQuery.type( obj ); return ( type === "number" || type === "string" ) && // parseFloat NaNs numeric-cast false positives ("") // ...but misinterprets leading-number strings, particularly hex literals ("0x...") // subtraction forces infinities to NaN !isNaN( obj - parseFloat( obj ) ); }, isPlainObject: function( obj ) { var proto, Ctor; // Detect obvious negatives // Use toString instead of jQuery.type to catch host objects if ( !obj || toString.call( obj ) !== "[object Object]" ) { return false; } proto = getProto( obj ); // Objects with no prototype (e.g., `Object.create( null )`) are plain if ( !proto ) { return true; } // Objects with prototype are plain iff they were constructed by a global Object function Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor; return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString; }, isEmptyObject: function( obj ) { /* eslint-disable no-unused-vars */ // See https://github.com/eslint/eslint/issues/6125 var name; for ( name in obj ) { return false; } return true; }, type: function( obj ) { if ( obj == null ) { return obj + ""; } // Support: Android <=2.3 only (functionish RegExp) return typeof obj === "object" || typeof obj === "function" ? class2type[ toString.call( obj ) ] || "object" : typeof obj; }, // Evaluates a script in a global context globalEval: function( code ) { DOMEval( code ); }, // Convert dashed to camelCase; used by the css and data modules // Support: IE <=9 - 11, Edge 12 - 13 // Microsoft forgot to hump their vendor prefix (#9572) camelCase: function( string ) { return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase ); }, each: function( obj, callback ) { var length, i = 0; if ( isArrayLike( obj ) ) { length = obj.length; for ( ; i < length; i++ ) { if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { break; } } } else { for ( i in obj ) { if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { break; } } } return obj; }, // Support: Android <=4.0 only trim: function( text ) { return text == null ? "" : ( text + "" ).replace( rtrim, "" ); }, // results is for internal usage only makeArray: function( arr, results ) { var ret = results || []; if ( arr != null ) { if ( isArrayLike( Object( arr ) ) ) { jQuery.merge( ret, typeof arr === "string" ? [ arr ] : arr ); } else { push.call( ret, arr ); } } return ret; }, inArray: function( elem, arr, i ) { return arr == null ? -1 : indexOf.call( arr, elem, i ); }, // Support: Android <=4.0 only, PhantomJS 1 only // push.apply(_, arraylike) throws on ancient WebKit merge: function( first, second ) { var len = +second.length, j = 0, i = first.length; for ( ; j < len; j++ ) { first[ i++ ] = second[ j ]; } first.length = i; return first; }, grep: function( elems, callback, invert ) { var callbackInverse, matches = [], i = 0, length = elems.length, callbackExpect = !invert; // Go through the array, only saving the items // that pass the validator function for ( ; i < length; i++ ) { callbackInverse = !callback( elems[ i ], i ); if ( callbackInverse !== callbackExpect ) { matches.push( elems[ i ] ); } } return matches; }, // arg is for internal usage only map: function( elems, callback, arg ) { var length, value, i = 0, ret = []; // Go through the array, translating each of the items to their new values if ( isArrayLike( elems ) ) { length = elems.length; for ( ; i < length; i++ ) { value = callback( elems[ i ], i, arg ); if ( value != null ) { ret.push( value ); } } // Go through every key on the object, } else { for ( i in elems ) { value = callback( elems[ i ], i, arg ); if ( value != null ) { ret.push( value ); } } } // Flatten any nested arrays return concat.apply( [], ret ); }, // A global GUID counter for objects guid: 1, // Bind a function to a context, optionally partially applying any // arguments. proxy: function( fn, context ) { var tmp, args, proxy; if ( typeof context === "string" ) { tmp = fn[ context ]; context = fn; fn = tmp; } // Quick check to determine if target is callable, in the spec // this throws a TypeError, but we will just return undefined. if ( !jQuery.isFunction( fn ) ) { return undefined; } // Simulated bind args = slice.call( arguments, 2 ); proxy = function() { return fn.apply( context || this, args.concat( slice.call( arguments ) ) ); }; // Set the guid of unique handler to the same of original handler, so it can be removed proxy.guid = fn.guid = fn.guid || jQuery.guid++; return proxy; }, now: Date.now, // jQuery.support is not used in Core but other projects attach their // properties to it so it needs to exist. support: support } ); if ( typeof Symbol === "function" ) { jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ]; } // Populate the class2type map jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ), function( i, name ) { class2type[ "[object " + name + "]" ] = name.toLowerCase(); } ); function isArrayLike( obj ) { // Support: real iOS 8.2 only (not reproducible in simulator) // `in` check used to prevent JIT error (gh-2145) // hasOwn isn't used here due to false negatives // regarding Nodelist length in IE var length = !!obj && "length" in obj && obj.length, type = jQuery.type( obj ); if ( type === "function" || jQuery.isWindow( obj ) ) { return false; } return type === "array" || length === 0 || typeof length === "number" && length > 0 && ( length - 1 ) in obj; } var Sizzle = /*! * Sizzle CSS Selector Engine v2.3.3 * https://sizzlejs.com/ * * Copyright jQuery Foundation and other contributors * Released under the MIT license * http://jquery.org/license * * Date: 2016-08-08 */ (function( window ) { var i, support, Expr, getText, isXML, tokenize, compile, select, outermostContext, sortInput, hasDuplicate, // Local document vars setDocument, document, docElem, documentIsHTML, rbuggyQSA, rbuggyMatches, matches, contains, // Instance-specific data expando = "sizzle" + 1 * new Date(), preferredDoc = window.document, dirruns = 0, done = 0, classCache = createCache(), tokenCache = createCache(), compilerCache = createCache(), sortOrder = function( a, b ) { if ( a === b ) { hasDuplicate = true; } return 0; }, // Instance methods hasOwn = ({}).hasOwnProperty, arr = [], pop = arr.pop, push_native = arr.push, push = arr.push, slice = arr.slice, // Use a stripped-down indexOf as it's faster than native // https://jsperf.com/thor-indexof-vs-for/5 indexOf = function( list, elem ) { var i = 0, len = list.length; for ( ; i < len; i++ ) { if ( list[i] === elem ) { return i; } } return -1; }, booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped", // Regular expressions // http://www.w3.org/TR/css3-selectors/#whitespace whitespace = "[\\x20\\t\\r\\n\\f]", // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+", // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace + // Operator (capture 2) "*([*^$|!~]?=)" + whitespace + // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]" "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace + "*\\]", pseudos = ":(" + identifier + ")(?:\\((" + // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments: // 1. quoted (capture 3; capture 4 or capture 5) "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" + // 2. simple (capture 6) "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" + // 3. anything else (capture 2) ".*" + ")\\)|)", // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter rwhitespace = new RegExp( whitespace + "+", "g" ), rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ), rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ), rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ), rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ), rpseudo = new RegExp( pseudos ), ridentifier = new RegExp( "^" + identifier + "$" ), matchExpr = { "ID": new RegExp( "^#(" + identifier + ")" ), "CLASS": new RegExp( "^\\.(" + identifier + ")" ), "TAG": new RegExp( "^(" + identifier + "|[*])" ), "ATTR": new RegExp( "^" + attributes ), "PSEUDO": new RegExp( "^" + pseudos ), "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), "bool": new RegExp( "^(?:" + booleans + ")$", "i" ), // For use in libraries implementing .is() // We use this for POS matching in `select` "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) }, rinputs = /^(?:input|select|textarea|button)$/i, rheader = /^h\d$/i, rnative = /^[^{]+\{\s*\[native \w/, // Easily-parseable/retrievable ID or TAG or CLASS selectors rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/, rsibling = /[+~]/, // CSS escapes // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ), funescape = function( _, escaped, escapedWhitespace ) { var high = "0x" + escaped - 0x10000; // NaN means non-codepoint // Support: Firefox<24 // Workaround erroneous numeric interpretation of +"0x" return high !== high || escapedWhitespace ? escaped : high < 0 ? // BMP codepoint String.fromCharCode( high + 0x10000 ) : // Supplemental Plane codepoint (surrogate pair) String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 ); }, // CSS string/identifier serialization // https://drafts.csswg.org/cssom/#common-serializing-idioms rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g, fcssescape = function( ch, asCodePoint ) { if ( asCodePoint ) { // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER if ( ch === "\0" ) { return "\uFFFD"; } // Control characters and (dependent upon position) numbers get escaped as code points return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " "; } // Other potentially-special ASCII characters get backslash-escaped return "\\" + ch; }, // Used for iframes // See setDocument() // Removing the function wrapper causes a "Permission Denied" // error in IE unloadHandler = function() { setDocument(); }, disabledAncestor = addCombinator( function( elem ) { return elem.disabled === true && ("form" in elem || "label" in elem); }, { dir: "parentNode", next: "legend" } ); // Optimize for push.apply( _, NodeList ) try { push.apply( (arr = slice.call( preferredDoc.childNodes )), preferredDoc.childNodes ); // Support: Android<4.0 // Detect silently failing push.apply arr[ preferredDoc.childNodes.length ].nodeType; } catch ( e ) { push = { apply: arr.length ? // Leverage slice if possible function( target, els ) { push_native.apply( target, slice.call(els) ); } : // Support: IE<9 // Otherwise append directly function( target, els ) { var j = target.length, i = 0; // Can't trust NodeList.length while ( (target[j++] = els[i++]) ) {} target.length = j - 1; } }; } function Sizzle( selector, context, results, seed ) { var m, i, elem, nid, match, groups, newSelector, newContext = context && context.ownerDocument, // nodeType defaults to 9, since context defaults to document nodeType = context ? context.nodeType : 9; results = results || []; // Return early from calls with invalid selector or context if ( typeof selector !== "string" || !selector || nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) { return results; } // Try to shortcut find operations (as opposed to filters) in HTML documents if ( !seed ) { if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) { setDocument( context ); } context = context || document; if ( documentIsHTML ) { // If the selector is sufficiently simple, try using a "get*By*" DOM method // (excepting DocumentFragment context, where the methods don't exist) if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) { // ID selector if ( (m = match[1]) ) { // Document context if ( nodeType === 9 ) { if ( (elem = context.getElementById( m )) ) { // Support: IE, Opera, Webkit // TODO: identify versions // getElementById can match elements by name instead of ID if ( elem.id === m ) { results.push( elem ); return results; } } else { return results; } // Element context } else { // Support: IE, Opera, Webkit // TODO: identify versions // getElementById can match elements by name instead of ID if ( newContext && (elem = newContext.getElementById( m )) && contains( context, elem ) && elem.id === m ) { results.push( elem ); return results; } } // Type selector } else if ( match[2] ) { push.apply( results, context.getElementsByTagName( selector ) ); return results; // Class selector } else if ( (m = match[3]) && support.getElementsByClassName && context.getElementsByClassName ) { push.apply( results, context.getElementsByClassName( m ) ); return results; } } // Take advantage of querySelectorAll if ( support.qsa && !compilerCache[ selector + " " ] && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) { if ( nodeType !== 1 ) { newContext = context; newSelector = selector; // qSA looks outside Element context, which is not what we want // Thanks to Andrew Dupont for this workaround technique // Support: IE <=8 // Exclude object elements } else if ( context.nodeName.toLowerCase() !== "object" ) { // Capture the context ID, setting it first if necessary if ( (nid = context.getAttribute( "id" )) ) { nid = nid.replace( rcssescape, fcssescape ); } else { context.setAttribute( "id", (nid = expando) ); } // Prefix every selector in the list groups = tokenize( selector ); i = groups.length; while ( i-- ) { groups[i] = "#" + nid + " " + toSelector( groups[i] ); } newSelector = groups.join( "," ); // Expand context for sibling selectors newContext = rsibling.test( selector ) && testContext( context.parentNode ) || context; } if ( newSelector ) { try { push.apply( results, newContext.querySelectorAll( newSelector ) ); return results; } catch ( qsaError ) { } finally { if ( nid === expando ) { context.removeAttribute( "id" ); } } } } } } // All others return select( selector.replace( rtrim, "$1" ), context, results, seed ); } /** * Create key-value caches of limited size * @returns {function(string, object)} Returns the Object data after storing it on itself with * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength) * deleting the oldest entry */ function createCache() { var keys = []; function cache( key, value ) { // Use (key + " ") to avoid collision with native prototype properties (see Issue #157) if ( keys.push( key + " " ) > Expr.cacheLength ) { // Only keep the most recent entries delete cache[ keys.shift() ]; } return (cache[ key + " " ] = value); } return cache; } /** * Mark a function for special use by Sizzle * @param {Function} fn The function to mark */ function markFunction( fn ) { fn[ expando ] = true; return fn; } /** * Support testing using an element * @param {Function} fn Passed the created element and returns a boolean result */ function assert( fn ) { var el = document.createElement("fieldset"); try { return !!fn( el ); } catch (e) { return false; } finally { // Remove from its parent by default if ( el.parentNode ) { el.parentNode.removeChild( el ); } // release memory in IE el = null; } } /** * Adds the same handler for all of the specified attrs * @param {String} attrs Pipe-separated list of attributes * @param {Function} handler The method that will be applied */ function addHandle( attrs, handler ) { var arr = attrs.split("|"), i = arr.length; while ( i-- ) { Expr.attrHandle[ arr[i] ] = handler; } } /** * Checks document order of two siblings * @param {Element} a * @param {Element} b * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b */ function siblingCheck( a, b ) { var cur = b && a, diff = cur && a.nodeType === 1 && b.nodeType === 1 && a.sourceIndex - b.sourceIndex; // Use IE sourceIndex if available on both nodes if ( diff ) { return diff; } // Check if b follows a if ( cur ) { while ( (cur = cur.nextSibling) ) { if ( cur === b ) { return -1; } } } return a ? 1 : -1; } /** * Returns a function to use in pseudos for input types * @param {String} type */ function createInputPseudo( type ) { return function( elem ) { var name = elem.nodeName.toLowerCase(); return name === "input" && elem.type === type; }; } /** * Returns a function to use in pseudos for buttons * @param {String} type */ function createButtonPseudo( type ) { return function( elem ) { var name = elem.nodeName.toLowerCase(); return (name === "input" || name === "button") && elem.type === type; }; } /** * Returns a function to use in pseudos for :enabled/:disabled * @param {Boolean} disabled true for :disabled; false for :enabled */ function createDisabledPseudo( disabled ) { // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable return function( elem ) { // Only certain elements can match :enabled or :disabled // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled if ( "form" in elem ) { // Check for inherited disabledness on relevant non-disabled elements: // * listed form-associated elements in a disabled fieldset // https://html.spec.whatwg.org/multipage/forms.html#category-listed // https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled // * option elements in a disabled optgroup // https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled // All such elements have a "form" property. if ( elem.parentNode && elem.disabled === false ) { // Option elements defer to a parent optgroup if present if ( "label" in elem ) { if ( "label" in elem.parentNode ) { return elem.parentNode.disabled === disabled; } else { return elem.disabled === disabled; } } // Support: IE 6 - 11 // Use the isDisabled shortcut property to check for disabled fieldset ancestors return elem.isDisabled === disabled || // Where there is no isDisabled, check manually /* jshint -W018 */ elem.isDisabled !== !disabled && disabledAncestor( elem ) === disabled; } return elem.disabled === disabled; // Try to winnow out elements that can't be disabled before trusting the disabled property. // Some victims get caught in our net (label, legend, menu, track), but it shouldn't // even exist on them, let alone have a boolean value. } else if ( "label" in elem ) { return elem.disabled === disabled; } // Remaining elements are neither :enabled nor :disabled return false; }; } /** * Returns a function to use in pseudos for positionals * @param {Function} fn */ function createPositionalPseudo( fn ) { return markFunction(function( argument ) { argument = +argument; return markFunction(function( seed, matches ) { var j, matchIndexes = fn( [], seed.length, argument ), i = matchIndexes.length; // Match elements found at the specified indexes while ( i-- ) { if ( seed[ (j = matchIndexes[i]) ] ) { seed[j] = !(matches[j] = seed[j]); } } }); }); } /** * Checks a node for validity as a Sizzle context * @param {Element|Object=} context * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value */ function testContext( context ) { return context && typeof context.getElementsByTagName !== "undefined" && context; } // Expose support vars for convenience support = Sizzle.support = {}; /** * Detects XML nodes * @param {Element|Object} elem An element or a document * @returns {Boolean} True iff elem is a non-HTML XML node */ isXML = Sizzle.isXML = function( elem ) { // documentElement is verified for cases where it doesn't yet exist // (such as loading iframes in IE - #4833) var documentElement = elem && (elem.ownerDocument || elem).documentElement; return documentElement ? documentElement.nodeName !== "HTML" : false; }; /** * Sets document-related variables once based on the current document * @param {Element|Object} [doc] An element or document object to use to set the document * @returns {Object} Returns the current document */ setDocument = Sizzle.setDocument = function( node ) { var hasCompare, subWindow, doc = node ? node.ownerDocument || node : preferredDoc; // Return early if doc is invalid or already selected if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) { return document; } // Update global variables document = doc; docElem = document.documentElement; documentIsHTML = !isXML( document ); // Support: IE 9-11, Edge // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936) if ( preferredDoc !== document && (subWindow = document.defaultView) && subWindow.top !== subWindow ) { // Support: IE 11, Edge if ( subWindow.addEventListener ) { subWindow.addEventListener( "unload", unloadHandler, false ); // Support: IE 9 - 10 only } else if ( subWindow.attachEvent ) { subWindow.attachEvent( "onunload", unloadHandler ); } } /* Attributes ---------------------------------------------------------------------- */ // Support: IE<8 // Verify that getAttribute really returns attributes and not properties // (excepting IE8 booleans) support.attributes = assert(function( el ) { el.className = "i"; return !el.getAttribute("className"); }); /* getElement(s)By* ---------------------------------------------------------------------- */ // Check if getElementsByTagName("*") returns only elements support.getElementsByTagName = assert(function( el ) { el.appendChild( document.createComment("") ); return !el.getElementsByTagName("*").length; }); // Support: IE<9 support.getElementsByClassName = rnative.test( document.getElementsByClassName ); // Support: IE<10 // Check if getElementById returns elements by name // The broken getElementById methods don't pick up programmatically-set names, // so use a roundabout getElementsByName test support.getById = assert(function( el ) { docElem.appendChild( el ).id = expando; return !document.getElementsByName || !document.getElementsByName( expando ).length; }); // ID filter and find if ( support.getById ) { Expr.filter["ID"] = function( id ) { var attrId = id.replace( runescape, funescape ); return function( elem ) { return elem.getAttribute("id") === attrId; }; }; Expr.find["ID"] = function( id, context ) { if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { var elem = context.getElementById( id ); return elem ? [ elem ] : []; } }; } else { Expr.filter["ID"] = function( id ) { var attrId = id.replace( runescape, funescape ); return function( elem ) { var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id"); return node && node.value === attrId; }; }; // Support: IE 6 - 7 only // getElementById is not reliable as a find shortcut Expr.find["ID"] = function( id, context ) { if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { var node, i, elems, elem = context.getElementById( id ); if ( elem ) { // Verify the id attribute node = elem.getAttributeNode("id"); if ( node && node.value === id ) { return [ elem ]; } // Fall back on getElementsByName elems = context.getElementsByName( id ); i = 0; while ( (elem = elems[i++]) ) { node = elem.getAttributeNode("id"); if ( node && node.value === id ) { return [ elem ]; } } } return []; } }; } // Tag Expr.find["TAG"] = support.getElementsByTagName ? function( tag, context ) { if ( typeof context.getElementsByTagName !== "undefined" ) { return context.getElementsByTagName( tag ); // DocumentFragment nodes don't have gEBTN } else if ( support.qsa ) { return context.querySelectorAll( tag ); } } : function( tag, context ) { var elem, tmp = [], i = 0, // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too results = context.getElementsByTagName( tag ); // Filter out possible comments if ( tag === "*" ) { while ( (elem = results[i++]) ) { if ( elem.nodeType === 1 ) { tmp.push( elem ); } } return tmp; } return results; }; // Class Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) { if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) { return context.getElementsByClassName( className ); } }; /* QSA/matchesSelector ---------------------------------------------------------------------- */ // QSA and matchesSelector support // matchesSelector(:active) reports false when true (IE9/Opera 11.5) rbuggyMatches = []; // qSa(:focus) reports false when true (Chrome 21) // We allow this because of a bug in IE8/9 that throws an error // whenever `document.activeElement` is accessed on an iframe // So, we allow :focus to pass through QSA all the time to avoid the IE error // See https://bugs.jquery.com/ticket/13378 rbuggyQSA = []; if ( (support.qsa = rnative.test( document.querySelectorAll )) ) { // Build QSA regex // Regex strategy adopted from Diego Perini assert(function( el ) { // Select is set to empty string on purpose // This is to test IE's treatment of not explicitly // setting a boolean content attribute, // since its presence should be enough // https://bugs.jquery.com/ticket/12359 docElem.appendChild( el ).innerHTML = "" + ""; // Support: IE8, Opera 11-12.16 // Nothing should be selected when empty strings follow ^= or $= or *= // The test attribute must be unknown in Opera but "safe" for WinRT // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section if ( el.querySelectorAll("[msallowcapture^='']").length ) { rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" ); } // Support: IE8 // Boolean attributes and "value" are not treated correctly if ( !el.querySelectorAll("[selected]").length ) { rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" ); } // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+ if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) { rbuggyQSA.push("~="); } // Webkit/Opera - :checked should return selected option elements // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked // IE8 throws error here and will not see later tests if ( !el.querySelectorAll(":checked").length ) { rbuggyQSA.push(":checked"); } // Support: Safari 8+, iOS 8+ // https://bugs.webkit.org/show_bug.cgi?id=136851 // In-page `selector#id sibling-combinator selector` fails if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) { rbuggyQSA.push(".#.+[+~]"); } }); assert(function( el ) { el.innerHTML = "" + ""; // Support: Windows 8 Native Apps // The type and name attributes are restricted during .innerHTML assignment var input = document.createElement("input"); input.setAttribute( "type", "hidden" ); el.appendChild( input ).setAttribute( "name", "D" ); // Support: IE8 // Enforce case-sensitivity of name attribute if ( el.querySelectorAll("[name=d]").length ) { rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" ); } // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled) // IE8 throws error here and will not see later tests if ( el.querySelectorAll(":enabled").length !== 2 ) { rbuggyQSA.push( ":enabled", ":disabled" ); } // Support: IE9-11+ // IE's :disabled selector does not pick up the children of disabled fieldsets docElem.appendChild( el ).disabled = true; if ( el.querySelectorAll(":disabled").length !== 2 ) { rbuggyQSA.push( ":enabled", ":disabled" ); } // Opera 10-11 does not throw on post-comma invalid pseudos el.querySelectorAll("*,:x"); rbuggyQSA.push(",.*:"); }); } if ( (support.matchesSelector = rnative.test( (matches = docElem.matches || docElem.webkitMatchesSelector || docElem.mozMatchesSelector || docElem.oMatchesSelector || docElem.msMatchesSelector) )) ) { assert(function( el ) { // Check to see if it's possible to do matchesSelector // on a disconnected node (IE 9) support.disconnectedMatch = matches.call( el, "*" ); // This should fail with an exception // Gecko does not error, returns false instead matches.call( el, "[s!='']:x" ); rbuggyMatches.push( "!=", pseudos ); }); } rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") ); rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") ); /* Contains ---------------------------------------------------------------------- */ hasCompare = rnative.test( docElem.compareDocumentPosition ); // Element contains another // Purposefully self-exclusive // As in, an element does not contain itself contains = hasCompare || rnative.test( docElem.contains ) ? function( a, b ) { var adown = a.nodeType === 9 ? a.documentElement : a, bup = b && b.parentNode; return a === bup || !!( bup && bup.nodeType === 1 && ( adown.contains ? adown.contains( bup ) : a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16 )); } : function( a, b ) { if ( b ) { while ( (b = b.parentNode) ) { if ( b === a ) { return true; } } } return false; }; /* Sorting ---------------------------------------------------------------------- */ // Document order sorting sortOrder = hasCompare ? function( a, b ) { // Flag for duplicate removal if ( a === b ) { hasDuplicate = true; return 0; } // Sort on method existence if only one input has compareDocumentPosition var compare = !a.compareDocumentPosition - !b.compareDocumentPosition; if ( compare ) { return compare; } // Calculate position if both inputs belong to the same document compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ? a.compareDocumentPosition( b ) : // Otherwise we know they are disconnected 1; // Disconnected nodes if ( compare & 1 || (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) { // Choose the first element that is related to our preferred document if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) { return -1; } if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) { return 1; } // Maintain original order return sortInput ? ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) : 0; } return compare & 4 ? -1 : 1; } : function( a, b ) { // Exit early if the nodes are identical if ( a === b ) { hasDuplicate = true; return 0; } var cur, i = 0, aup = a.parentNode, bup = b.parentNode, ap = [ a ], bp = [ b ]; // Parentless nodes are either documents or disconnected if ( !aup || !bup ) { return a === document ? -1 : b === document ? 1 : aup ? -1 : bup ? 1 : sortInput ? ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) : 0; // If the nodes are siblings, we can do a quick check } else if ( aup === bup ) { return siblingCheck( a, b ); } // Otherwise we need full lists of their ancestors for comparison cur = a; while ( (cur = cur.parentNode) ) { ap.unshift( cur ); } cur = b; while ( (cur = cur.parentNode) ) { bp.unshift( cur ); } // Walk down the tree looking for a discrepancy while ( ap[i] === bp[i] ) { i++; } return i ? // Do a sibling check if the nodes have a common ancestor siblingCheck( ap[i], bp[i] ) : // Otherwise nodes in our document sort first ap[i] === preferredDoc ? -1 : bp[i] === preferredDoc ? 1 : 0; }; return document; }; Sizzle.matches = function( expr, elements ) { return Sizzle( expr, null, null, elements ); }; Sizzle.matchesSelector = function( elem, expr ) { // Set document vars if needed if ( ( elem.ownerDocument || elem ) !== document ) { setDocument( elem ); } // Make sure that attribute selectors are quoted expr = expr.replace( rattributeQuotes, "='$1']" ); if ( support.matchesSelector && documentIsHTML && !compilerCache[ expr + " " ] && ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) && ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) { try { var ret = matches.call( elem, expr ); // IE 9's matchesSelector returns false on disconnected nodes if ( ret || support.disconnectedMatch || // As well, disconnected nodes are said to be in a document // fragment in IE 9 elem.document && elem.document.nodeType !== 11 ) { return ret; } } catch (e) {} } return Sizzle( expr, document, null, [ elem ] ).length > 0; }; Sizzle.contains = function( context, elem ) { // Set document vars if needed if ( ( context.ownerDocument || context ) !== document ) { setDocument( context ); } return contains( context, elem ); }; Sizzle.attr = function( elem, name ) { // Set document vars if needed if ( ( elem.ownerDocument || elem ) !== document ) { setDocument( elem ); } var fn = Expr.attrHandle[ name.toLowerCase() ], // Don't get fooled by Object.prototype properties (jQuery #13807) val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ? fn( elem, name, !documentIsHTML ) : undefined; return val !== undefined ? val : support.attributes || !documentIsHTML ? elem.getAttribute( name ) : (val = elem.getAttributeNode(name)) && val.specified ? val.value : null; }; Sizzle.escape = function( sel ) { return (sel + "").replace( rcssescape, fcssescape ); }; Sizzle.error = function( msg ) { throw new Error( "Syntax error, unrecognized expression: " + msg ); }; /** * Document sorting and removing duplicates * @param {ArrayLike} results */ Sizzle.uniqueSort = function( results ) { var elem, duplicates = [], j = 0, i = 0; // Unless we *know* we can detect duplicates, assume their presence hasDuplicate = !support.detectDuplicates; sortInput = !support.sortStable && results.slice( 0 ); results.sort( sortOrder ); if ( hasDuplicate ) { while ( (elem = results[i++]) ) { if ( elem === results[ i ] ) { j = duplicates.push( i ); } } while ( j-- ) { results.splice( duplicates[ j ], 1 ); } } // Clear input after sorting to release objects // See https://github.com/jquery/sizzle/pull/225 sortInput = null; return results; }; /** * Utility function for retrieving the text value of an array of DOM nodes * @param {Array|Element} elem */ getText = Sizzle.getText = function( elem ) { var node, ret = "", i = 0, nodeType = elem.nodeType; if ( !nodeType ) { // If no nodeType, this is expected to be an array while ( (node = elem[i++]) ) { // Do not traverse comment nodes ret += getText( node ); } } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) { // Use textContent for elements // innerText usage removed for consistency of new lines (jQuery #11153) if ( typeof elem.textContent === "string" ) { return elem.textContent; } else { // Traverse its children for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { ret += getText( elem ); } } } else if ( nodeType === 3 || nodeType === 4 ) { return elem.nodeValue; } // Do not include comment or processing instruction nodes return ret; }; Expr = Sizzle.selectors = { // Can be adjusted by the user cacheLength: 50, createPseudo: markFunction, match: matchExpr, attrHandle: {}, find: {}, relative: { ">": { dir: "parentNode", first: true }, " ": { dir: "parentNode" }, "+": { dir: "previousSibling", first: true }, "~": { dir: "previousSibling" } }, preFilter: { "ATTR": function( match ) { match[1] = match[1].replace( runescape, funescape ); // Move the given value to match[3] whether quoted or unquoted match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape ); if ( match[2] === "~=" ) { match[3] = " " + match[3] + " "; } return match.slice( 0, 4 ); }, "CHILD": function( match ) { /* matches from matchExpr["CHILD"] 1 type (only|nth|...) 2 what (child|of-type) 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...) 4 xn-component of xn+y argument ([+-]?\d*n|) 5 sign of xn-component 6 x of xn-component 7 sign of y-component 8 y of y-component */ match[1] = match[1].toLowerCase(); if ( match[1].slice( 0, 3 ) === "nth" ) { // nth-* requires argument if ( !match[3] ) { Sizzle.error( match[0] ); } // numeric x and y parameters for Expr.filter.CHILD // remember that false/true cast respectively to 0/1 match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) ); match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" ); // other types prohibit arguments } else if ( match[3] ) { Sizzle.error( match[0] ); } return match; }, "PSEUDO": function( match ) { var excess, unquoted = !match[6] && match[2]; if ( matchExpr["CHILD"].test( match[0] ) ) { return null; } // Accept quoted arguments as-is if ( match[3] ) { match[2] = match[4] || match[5] || ""; // Strip excess characters from unquoted arguments } else if ( unquoted && rpseudo.test( unquoted ) && // Get excess from tokenize (recursively) (excess = tokenize( unquoted, true )) && // advance to the next closing parenthesis (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) { // excess is a negative index match[0] = match[0].slice( 0, excess ); match[2] = unquoted.slice( 0, excess ); } // Return only captures needed by the pseudo filter method (type and argument) return match.slice( 0, 3 ); } }, filter: { "TAG": function( nodeNameSelector ) { var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase(); return nodeNameSelector === "*" ? function() { return true; } : function( elem ) { return elem.nodeName && elem.nodeName.toLowerCase() === nodeName; }; }, "CLASS": function( className ) { var pattern = classCache[ className + " " ]; return pattern || (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) && classCache( className, function( elem ) { return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" ); }); }, "ATTR": function( name, operator, check ) { return function( elem ) { var result = Sizzle.attr( elem, name ); if ( result == null ) { return operator === "!="; } if ( !operator ) { return true; } result += ""; return operator === "=" ? result === check : operator === "!=" ? result !== check : operator === "^=" ? check && result.indexOf( check ) === 0 : operator === "*=" ? check && result.indexOf( check ) > -1 : operator === "$=" ? check && result.slice( -check.length ) === check : operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 : operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" : false; }; }, "CHILD": function( type, what, argument, first, last ) { var simple = type.slice( 0, 3 ) !== "nth", forward = type.slice( -4 ) !== "last", ofType = what === "of-type"; return first === 1 && last === 0 ? // Shortcut for :nth-*(n) function( elem ) { return !!elem.parentNode; } : function( elem, context, xml ) { var cache, uniqueCache, outerCache, node, nodeIndex, start, dir = simple !== forward ? "nextSibling" : "previousSibling", parent = elem.parentNode, name = ofType && elem.nodeName.toLowerCase(), useCache = !xml && !ofType, diff = false; if ( parent ) { // :(first|last|only)-(child|of-type) if ( simple ) { while ( dir ) { node = elem; while ( (node = node[ dir ]) ) { if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) { return false; } } // Reverse direction for :only-* (if we haven't yet done so) start = dir = type === "only" && !start && "nextSibling"; } return true; } start = [ forward ? parent.firstChild : parent.lastChild ]; // non-xml :nth-child(...) stores cache data on `parent` if ( forward && useCache ) { // Seek `elem` from a previously-cached index // ...in a gzip-friendly way node = parent; outerCache = node[ expando ] || (node[ expando ] = {}); // Support: IE <9 only // Defend against cloned attroperties (jQuery gh-1709) uniqueCache = outerCache[ node.uniqueID ] || (outerCache[ node.uniqueID ] = {}); cache = uniqueCache[ type ] || []; nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; diff = nodeIndex && cache[ 2 ]; node = nodeIndex && parent.childNodes[ nodeIndex ]; while ( (node = ++nodeIndex && node && node[ dir ] || // Fallback to seeking `elem` from the start (diff = nodeIndex = 0) || start.pop()) ) { // When found, cache indexes on `parent` and break if ( node.nodeType === 1 && ++diff && node === elem ) { uniqueCache[ type ] = [ dirruns, nodeIndex, diff ]; break; } } } else { // Use previously-cached element index if available if ( useCache ) { // ...in a gzip-friendly way node = elem; outerCache = node[ expando ] || (node[ expando ] = {}); // Support: IE <9 only // Defend against cloned attroperties (jQuery gh-1709) uniqueCache = outerCache[ node.uniqueID ] || (outerCache[ node.uniqueID ] = {}); cache = uniqueCache[ type ] || []; nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; diff = nodeIndex; } // xml :nth-child(...) // or :nth-last-child(...) or :nth(-last)?-of-type(...) if ( diff === false ) { // Use the same loop as above to seek `elem` from the start while ( (node = ++nodeIndex && node && node[ dir ] || (diff = nodeIndex = 0) || start.pop()) ) { if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) { // Cache the index of each encountered element if ( useCache ) { outerCache = node[ expando ] || (node[ expando ] = {}); // Support: IE <9 only // Defend against cloned attroperties (jQuery gh-1709) uniqueCache = outerCache[ node.uniqueID ] || (outerCache[ node.uniqueID ] = {}); uniqueCache[ type ] = [ dirruns, diff ]; } if ( node === elem ) { break; } } } } } // Incorporate the offset, then check against cycle size diff -= last; return diff === first || ( diff % first === 0 && diff / first >= 0 ); } }; }, "PSEUDO": function( pseudo, argument ) { // pseudo-class names are case-insensitive // http://www.w3.org/TR/selectors/#pseudo-classes // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters // Remember that setFilters inherits from pseudos var args, fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] || Sizzle.error( "unsupported pseudo: " + pseudo ); // The user may use createPseudo to indicate that // arguments are needed to create the filter function // just as Sizzle does if ( fn[ expando ] ) { return fn( argument ); } // But maintain support for old signatures if ( fn.length > 1 ) { args = [ pseudo, pseudo, "", argument ]; return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ? markFunction(function( seed, matches ) { var idx, matched = fn( seed, argument ), i = matched.length; while ( i-- ) { idx = indexOf( seed, matched[i] ); seed[ idx ] = !( matches[ idx ] = matched[i] ); } }) : function( elem ) { return fn( elem, 0, args ); }; } return fn; } }, pseudos: { // Potentially complex pseudos "not": markFunction(function( selector ) { // Trim the selector passed to compile // to avoid treating leading and trailing // spaces as combinators var input = [], results = [], matcher = compile( selector.replace( rtrim, "$1" ) ); return matcher[ expando ] ? markFunction(function( seed, matches, context, xml ) { var elem, unmatched = matcher( seed, null, xml, [] ), i = seed.length; // Match elements unmatched by `matcher` while ( i-- ) { if ( (elem = unmatched[i]) ) { seed[i] = !(matches[i] = elem); } } }) : function( elem, context, xml ) { input[0] = elem; matcher( input, null, xml, results ); // Don't keep the element (issue #299) input[0] = null; return !results.pop(); }; }), "has": markFunction(function( selector ) { return function( elem ) { return Sizzle( selector, elem ).length > 0; }; }), "contains": markFunction(function( text ) { text = text.replace( runescape, funescape ); return function( elem ) { return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1; }; }), // "Whether an element is represented by a :lang() selector // is based solely on the element's language value // being equal to the identifier C, // or beginning with the identifier C immediately followed by "-". // The matching of C against the element's language value is performed case-insensitively. // The identifier C does not have to be a valid language name." // http://www.w3.org/TR/selectors/#lang-pseudo "lang": markFunction( function( lang ) { // lang value must be a valid identifier if ( !ridentifier.test(lang || "") ) { Sizzle.error( "unsupported lang: " + lang ); } lang = lang.replace( runescape, funescape ).toLowerCase(); return function( elem ) { var elemLang; do { if ( (elemLang = documentIsHTML ? elem.lang : elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) { elemLang = elemLang.toLowerCase(); return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0; } } while ( (elem = elem.parentNode) && elem.nodeType === 1 ); return false; }; }), // Miscellaneous "target": function( elem ) { var hash = window.location && window.location.hash; return hash && hash.slice( 1 ) === elem.id; }, "root": function( elem ) { return elem === docElem; }, "focus": function( elem ) { return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex); }, // Boolean properties "enabled": createDisabledPseudo( false ), "disabled": createDisabledPseudo( true ), "checked": function( elem ) { // In CSS3, :checked should return both checked and selected elements // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked var nodeName = elem.nodeName.toLowerCase(); return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected); }, "selected": function( elem ) { // Accessing this property makes selected-by-default // options in Safari work properly if ( elem.parentNode ) { elem.parentNode.selectedIndex; } return elem.selected === true; }, // Contents "empty": function( elem ) { // http://www.w3.org/TR/selectors/#empty-pseudo // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5), // but not by others (comment: 8; processing instruction: 7; etc.) // nodeType < 6 works because attributes (2) do not appear as children for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { if ( elem.nodeType < 6 ) { return false; } } return true; }, "parent": function( elem ) { return !Expr.pseudos["empty"]( elem ); }, // Element/input types "header": function( elem ) { return rheader.test( elem.nodeName ); }, "input": function( elem ) { return rinputs.test( elem.nodeName ); }, "button": function( elem ) { var name = elem.nodeName.toLowerCase(); return name === "input" && elem.type === "button" || name === "button"; }, "text": function( elem ) { var attr; return elem.nodeName.toLowerCase() === "input" && elem.type === "text" && // Support: IE<8 // New HTML5 attribute values (e.g., "search") appear with elem.type === "text" ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" ); }, // Position-in-collection "first": createPositionalPseudo(function() { return [ 0 ]; }), "last": createPositionalPseudo(function( matchIndexes, length ) { return [ length - 1 ]; }), "eq": createPositionalPseudo(function( matchIndexes, length, argument ) { return [ argument < 0 ? argument + length : argument ]; }), "even": createPositionalPseudo(function( matchIndexes, length ) { var i = 0; for ( ; i < length; i += 2 ) { matchIndexes.push( i ); } return matchIndexes; }), "odd": createPositionalPseudo(function( matchIndexes, length ) { var i = 1; for ( ; i < length; i += 2 ) { matchIndexes.push( i ); } return matchIndexes; }), "lt": createPositionalPseudo(function( matchIndexes, length, argument ) { var i = argument < 0 ? argument + length : argument; for ( ; --i >= 0; ) { matchIndexes.push( i ); } return matchIndexes; }), "gt": createPositionalPseudo(function( matchIndexes, length, argument ) { var i = argument < 0 ? argument + length : argument; for ( ; ++i < length; ) { matchIndexes.push( i ); } return matchIndexes; }) } }; Expr.pseudos["nth"] = Expr.pseudos["eq"]; // Add button/input type pseudos for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) { Expr.pseudos[ i ] = createInputPseudo( i ); } for ( i in { submit: true, reset: true } ) { Expr.pseudos[ i ] = createButtonPseudo( i ); } // Easy API for creating new setFilters function setFilters() {} setFilters.prototype = Expr.filters = Expr.pseudos; Expr.setFilters = new setFilters(); tokenize = Sizzle.tokenize = function( selector, parseOnly ) { var matched, match, tokens, type, soFar, groups, preFilters, cached = tokenCache[ selector + " " ]; if ( cached ) { return parseOnly ? 0 : cached.slice( 0 ); } soFar = selector; groups = []; preFilters = Expr.preFilter; while ( soFar ) { // Comma and first run if ( !matched || (match = rcomma.exec( soFar )) ) { if ( match ) { // Don't consume trailing commas as valid soFar = soFar.slice( match[0].length ) || soFar; } groups.push( (tokens = []) ); } matched = false; // Combinators if ( (match = rcombinators.exec( soFar )) ) { matched = match.shift(); tokens.push({ value: matched, // Cast descendant combinators to space type: match[0].replace( rtrim, " " ) }); soFar = soFar.slice( matched.length ); } // Filters for ( type in Expr.filter ) { if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] || (match = preFilters[ type ]( match ))) ) { matched = match.shift(); tokens.push({ value: matched, type: type, matches: match }); soFar = soFar.slice( matched.length ); } } if ( !matched ) { break; } } // Return the length of the invalid excess // if we're just parsing // Otherwise, throw an error or return tokens return parseOnly ? soFar.length : soFar ? Sizzle.error( selector ) : // Cache the tokens tokenCache( selector, groups ).slice( 0 ); }; function toSelector( tokens ) { var i = 0, len = tokens.length, selector = ""; for ( ; i < len; i++ ) { selector += tokens[i].value; } return selector; } function addCombinator( matcher, combinator, base ) { var dir = combinator.dir, skip = combinator.next, key = skip || dir, checkNonElements = base && key === "parentNode", doneName = done++; return combinator.first ? // Check against closest ancestor/preceding element function( elem, context, xml ) { while ( (elem = elem[ dir ]) ) { if ( elem.nodeType === 1 || checkNonElements ) { return matcher( elem, context, xml ); } } return false; } : // Check against all ancestor/preceding elements function( elem, context, xml ) { var oldCache, uniqueCache, outerCache, newCache = [ dirruns, doneName ]; // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching if ( xml ) { while ( (elem = elem[ dir ]) ) { if ( elem.nodeType === 1 || checkNonElements ) { if ( matcher( elem, context, xml ) ) { return true; } } } } else { while ( (elem = elem[ dir ]) ) { if ( elem.nodeType === 1 || checkNonElements ) { outerCache = elem[ expando ] || (elem[ expando ] = {}); // Support: IE <9 only // Defend against cloned attroperties (jQuery gh-1709) uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {}); if ( skip && skip === elem.nodeName.toLowerCase() ) { elem = elem[ dir ] || elem; } else if ( (oldCache = uniqueCache[ key ]) && oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) { // Assign to newCache so results back-propagate to previous elements return (newCache[ 2 ] = oldCache[ 2 ]); } else { // Reuse newcache so results back-propagate to previous elements uniqueCache[ key ] = newCache; // A match means we're done; a fail means we have to keep checking if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) { return true; } } } } } return false; }; } function elementMatcher( matchers ) { return matchers.length > 1 ? function( elem, context, xml ) { var i = matchers.length; while ( i-- ) { if ( !matchers[i]( elem, context, xml ) ) { return false; } } return true; } : matchers[0]; } function multipleContexts( selector, contexts, results ) { var i = 0, len = contexts.length; for ( ; i < len; i++ ) { Sizzle( selector, contexts[i], results ); } return results; } function condense( unmatched, map, filter, context, xml ) { var elem, newUnmatched = [], i = 0, len = unmatched.length, mapped = map != null; for ( ; i < len; i++ ) { if ( (elem = unmatched[i]) ) { if ( !filter || filter( elem, context, xml ) ) { newUnmatched.push( elem ); if ( mapped ) { map.push( i ); } } } } return newUnmatched; } function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) { if ( postFilter && !postFilter[ expando ] ) { postFilter = setMatcher( postFilter ); } if ( postFinder && !postFinder[ expando ] ) { postFinder = setMatcher( postFinder, postSelector ); } return markFunction(function( seed, results, context, xml ) { var temp, i, elem, preMap = [], postMap = [], preexisting = results.length, // Get initial elements from seed or context elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ), // Prefilter to get matcher input, preserving a map for seed-results synchronization matcherIn = preFilter && ( seed || !selector ) ? condense( elems, preMap, preFilter, context, xml ) : elems, matcherOut = matcher ? // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results, postFinder || ( seed ? preFilter : preexisting || postFilter ) ? // ...intermediate processing is necessary [] : // ...otherwise use results directly results : matcherIn; // Find primary matches if ( matcher ) { matcher( matcherIn, matcherOut, context, xml ); } // Apply postFilter if ( postFilter ) { temp = condense( matcherOut, postMap ); postFilter( temp, [], context, xml ); // Un-match failing elements by moving them back to matcherIn i = temp.length; while ( i-- ) { if ( (elem = temp[i]) ) { matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem); } } } if ( seed ) { if ( postFinder || preFilter ) { if ( postFinder ) { // Get the final matcherOut by condensing this intermediate into postFinder contexts temp = []; i = matcherOut.length; while ( i-- ) { if ( (elem = matcherOut[i]) ) { // Restore matcherIn since elem is not yet a final match temp.push( (matcherIn[i] = elem) ); } } postFinder( null, (matcherOut = []), temp, xml ); } // Move matched elements from seed to results to keep them synchronized i = matcherOut.length; while ( i-- ) { if ( (elem = matcherOut[i]) && (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) { seed[temp] = !(results[temp] = elem); } } } // Add elements to results, through postFinder if defined } else { matcherOut = condense( matcherOut === results ? matcherOut.splice( preexisting, matcherOut.length ) : matcherOut ); if ( postFinder ) { postFinder( null, results, matcherOut, xml ); } else { push.apply( results, matcherOut ); } } }); } function matcherFromTokens( tokens ) { var checkContext, matcher, j, len = tokens.length, leadingRelative = Expr.relative[ tokens[0].type ], implicitRelative = leadingRelative || Expr.relative[" "], i = leadingRelative ? 1 : 0, // The foundational matcher ensures that elements are reachable from top-level context(s) matchContext = addCombinator( function( elem ) { return elem === checkContext; }, implicitRelative, true ), matchAnyContext = addCombinator( function( elem ) { return indexOf( checkContext, elem ) > -1; }, implicitRelative, true ), matchers = [ function( elem, context, xml ) { var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || ( (checkContext = context).nodeType ? matchContext( elem, context, xml ) : matchAnyContext( elem, context, xml ) ); // Avoid hanging onto element (issue #299) checkContext = null; return ret; } ]; for ( ; i < len; i++ ) { if ( (matcher = Expr.relative[ tokens[i].type ]) ) { matchers = [ addCombinator(elementMatcher( matchers ), matcher) ]; } else { matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches ); // Return special upon seeing a positional matcher if ( matcher[ expando ] ) { // Find the next relative operator (if any) for proper handling j = ++i; for ( ; j < len; j++ ) { if ( Expr.relative[ tokens[j].type ] ) { break; } } return setMatcher( i > 1 && elementMatcher( matchers ), i > 1 && toSelector( // If the preceding token was a descendant combinator, insert an implicit any-element `*` tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" }) ).replace( rtrim, "$1" ), matcher, i < j && matcherFromTokens( tokens.slice( i, j ) ), j < len && matcherFromTokens( (tokens = tokens.slice( j )) ), j < len && toSelector( tokens ) ); } matchers.push( matcher ); } } return elementMatcher( matchers ); } function matcherFromGroupMatchers( elementMatchers, setMatchers ) { var bySet = setMatchers.length > 0, byElement = elementMatchers.length > 0, superMatcher = function( seed, context, xml, results, outermost ) { var elem, j, matcher, matchedCount = 0, i = "0", unmatched = seed && [], setMatched = [], contextBackup = outermostContext, // We must always have either seed elements or outermost context elems = seed || byElement && Expr.find["TAG"]( "*", outermost ), // Use integer dirruns iff this is the outermost matcher dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1), len = elems.length; if ( outermost ) { outermostContext = context === document || context || outermost; } // Add elements passing elementMatchers directly to results // Support: IE<9, Safari // Tolerate NodeList properties (IE: "length"; Safari: ) matching elements by id for ( ; i !== len && (elem = elems[i]) != null; i++ ) { if ( byElement && elem ) { j = 0; if ( !context && elem.ownerDocument !== document ) { setDocument( elem ); xml = !documentIsHTML; } while ( (matcher = elementMatchers[j++]) ) { if ( matcher( elem, context || document, xml) ) { results.push( elem ); break; } } if ( outermost ) { dirruns = dirrunsUnique; } } // Track unmatched elements for set filters if ( bySet ) { // They will have gone through all possible matchers if ( (elem = !matcher && elem) ) { matchedCount--; } // Lengthen the array for every element, matched or not if ( seed ) { unmatched.push( elem ); } } } // `i` is now the count of elements visited above, and adding it to `matchedCount` // makes the latter nonnegative. matchedCount += i; // Apply set filters to unmatched elements // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount` // equals `i`), unless we didn't visit _any_ elements in the above loop because we have // no element matchers and no seed. // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that // case, which will result in a "00" `matchedCount` that differs from `i` but is also // numerically zero. if ( bySet && i !== matchedCount ) { j = 0; while ( (matcher = setMatchers[j++]) ) { matcher( unmatched, setMatched, context, xml ); } if ( seed ) { // Reintegrate element matches to eliminate the need for sorting if ( matchedCount > 0 ) { while ( i-- ) { if ( !(unmatched[i] || setMatched[i]) ) { setMatched[i] = pop.call( results ); } } } // Discard index placeholder values to get only actual matches setMatched = condense( setMatched ); } // Add matches to results push.apply( results, setMatched ); // Seedless set matches succeeding multiple successful matchers stipulate sorting if ( outermost && !seed && setMatched.length > 0 && ( matchedCount + setMatchers.length ) > 1 ) { Sizzle.uniqueSort( results ); } } // Override manipulation of globals by nested matchers if ( outermost ) { dirruns = dirrunsUnique; outermostContext = contextBackup; } return unmatched; }; return bySet ? markFunction( superMatcher ) : superMatcher; } compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { var i, setMatchers = [], elementMatchers = [], cached = compilerCache[ selector + " " ]; if ( !cached ) { // Generate a function of recursive functions that can be used to check each element if ( !match ) { match = tokenize( selector ); } i = match.length; while ( i-- ) { cached = matcherFromTokens( match[i] ); if ( cached[ expando ] ) { setMatchers.push( cached ); } else { elementMatchers.push( cached ); } } // Cache the compiled function cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) ); // Save selector and tokenization cached.selector = selector; } return cached; }; /** * A low-level selection function that works with Sizzle's compiled * selector functions * @param {String|Function} selector A selector or a pre-compiled * selector function built with Sizzle.compile * @param {Element} context * @param {Array} [results] * @param {Array} [seed] A set of elements to match against */ select = Sizzle.select = function( selector, context, results, seed ) { var i, tokens, token, type, find, compiled = typeof selector === "function" && selector, match = !seed && tokenize( (selector = compiled.selector || selector) ); results = results || []; // Try to minimize operations if there is only one selector in the list and no seed // (the latter of which guarantees us context) if ( match.length === 1 ) { // Reduce context if the leading compound selector is an ID tokens = match[0] = match[0].slice( 0 ); if ( tokens.length > 2 && (token = tokens[0]).type === "ID" && context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) { context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0]; if ( !context ) { return results; // Precompiled matchers will still verify ancestry, so step up a level } else if ( compiled ) { context = context.parentNode; } selector = selector.slice( tokens.shift().value.length ); } // Fetch a seed set for right-to-left matching i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length; while ( i-- ) { token = tokens[i]; // Abort if we hit a combinator if ( Expr.relative[ (type = token.type) ] ) { break; } if ( (find = Expr.find[ type ]) ) { // Search, expanding context for leading sibling combinators if ( (seed = find( token.matches[0].replace( runescape, funescape ), rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context )) ) { // If seed is empty or no tokens remain, we can return early tokens.splice( i, 1 ); selector = seed.length && toSelector( tokens ); if ( !selector ) { push.apply( results, seed ); return results; } break; } } } } // Compile and execute a filtering function if one is not provided // Provide `match` to avoid retokenization if we modified the selector above ( compiled || compile( selector, match ) )( seed, context, !documentIsHTML, results, !context || rsibling.test( selector ) && testContext( context.parentNode ) || context ); return results; }; // One-time assignments // Sort stability support.sortStable = expando.split("").sort( sortOrder ).join("") === expando; // Support: Chrome 14-35+ // Always assume duplicates if they aren't passed to the comparison function support.detectDuplicates = !!hasDuplicate; // Initialize against the default document setDocument(); // Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27) // Detached nodes confoundingly follow *each other* support.sortDetached = assert(function( el ) { // Should return 1, but returns 4 (following) return el.compareDocumentPosition( document.createElement("fieldset") ) & 1; }); // Support: IE<8 // Prevent attribute/property "interpolation" // https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx if ( !assert(function( el ) { el.innerHTML = ""; return el.firstChild.getAttribute("href") === "#" ; }) ) { addHandle( "type|href|height|width", function( elem, name, isXML ) { if ( !isXML ) { return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 ); } }); } // Support: IE<9 // Use defaultValue in place of getAttribute("value") if ( !support.attributes || !assert(function( el ) { el.innerHTML = ""; el.firstChild.setAttribute( "value", "" ); return el.firstChild.getAttribute( "value" ) === ""; }) ) { addHandle( "value", function( elem, name, isXML ) { if ( !isXML && elem.nodeName.toLowerCase() === "input" ) { return elem.defaultValue; } }); } // Support: IE<9 // Use getAttributeNode to fetch booleans when getAttribute lies if ( !assert(function( el ) { return el.getAttribute("disabled") == null; }) ) { addHandle( booleans, function( elem, name, isXML ) { var val; if ( !isXML ) { return elem[ name ] === true ? name.toLowerCase() : (val = elem.getAttributeNode( name )) && val.specified ? val.value : null; } }); } return Sizzle; })( window ); jQuery.find = Sizzle; jQuery.expr = Sizzle.selectors; // Deprecated jQuery.expr[ ":" ] = jQuery.expr.pseudos; jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort; jQuery.text = Sizzle.getText; jQuery.isXMLDoc = Sizzle.isXML; jQuery.contains = Sizzle.contains; jQuery.escapeSelector = Sizzle.escape; var dir = function( elem, dir, until ) { var matched = [], truncate = until !== undefined; while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) { if ( elem.nodeType === 1 ) { if ( truncate && jQuery( elem ).is( until ) ) { break; } matched.push( elem ); } } return matched; }; var siblings = function( n, elem ) { var matched = []; for ( ; n; n = n.nextSibling ) { if ( n.nodeType === 1 && n !== elem ) { matched.push( n ); } } return matched; }; var rneedsContext = jQuery.expr.match.needsContext; function nodeName( elem, name ) { return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase(); }; var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i ); var risSimple = /^.[^:#\[\.,]*$/; // Implement the identical functionality for filter and not function winnow( elements, qualifier, not ) { if ( jQuery.isFunction( qualifier ) ) { return jQuery.grep( elements, function( elem, i ) { return !!qualifier.call( elem, i, elem ) !== not; } ); } // Single element if ( qualifier.nodeType ) { return jQuery.grep( elements, function( elem ) { return ( elem === qualifier ) !== not; } ); } // Arraylike of elements (jQuery, arguments, Array) if ( typeof qualifier !== "string" ) { return jQuery.grep( elements, function( elem ) { return ( indexOf.call( qualifier, elem ) > -1 ) !== not; } ); } // Simple selector that can be filtered directly, removing non-Elements if ( risSimple.test( qualifier ) ) { return jQuery.filter( qualifier, elements, not ); } // Complex selector, compare the two sets, removing non-Elements qualifier = jQuery.filter( qualifier, elements ); return jQuery.grep( elements, function( elem ) { return ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1; } ); } jQuery.filter = function( expr, elems, not ) { var elem = elems[ 0 ]; if ( not ) { expr = ":not(" + expr + ")"; } if ( elems.length === 1 && elem.nodeType === 1 ) { return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : []; } return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) { return elem.nodeType === 1; } ) ); }; jQuery.fn.extend( { find: function( selector ) { var i, ret, len = this.length, self = this; if ( typeof selector !== "string" ) { return this.pushStack( jQuery( selector ).filter( function() { for ( i = 0; i < len; i++ ) { if ( jQuery.contains( self[ i ], this ) ) { return true; } } } ) ); } ret = this.pushStack( [] ); for ( i = 0; i < len; i++ ) { jQuery.find( selector, self[ i ], ret ); } return len > 1 ? jQuery.uniqueSort( ret ) : ret; }, filter: function( selector ) { return this.pushStack( winnow( this, selector || [], false ) ); }, not: function( selector ) { return this.pushStack( winnow( this, selector || [], true ) ); }, is: function( selector ) { return !!winnow( this, // If this is a positional/relative selector, check membership in the returned set // so $("p:first").is("p:last") won't return true for a doc with two "p". typeof selector === "string" && rneedsContext.test( selector ) ? jQuery( selector ) : selector || [], false ).length; } } ); // Initialize a jQuery object // A central reference to the root jQuery(document) var rootjQuery, // A simple way to check for HTML strings // Prioritize #id over to avoid XSS via location.hash (#9521) // Strict HTML recognition (#11290: must start with <) // Shortcut simple #id case for speed rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/, init = jQuery.fn.init = function( selector, context, root ) { var match, elem; // HANDLE: $(""), $(null), $(undefined), $(false) if ( !selector ) { return this; } // Method init() accepts an alternate rootjQuery // so migrate can support jQuery.sub (gh-2101) root = root || rootjQuery; // Handle HTML strings if ( typeof selector === "string" ) { if ( selector[ 0 ] === "<" && selector[ selector.length - 1 ] === ">" && selector.length >= 3 ) { // Assume that strings that start and end with <> are HTML and skip the regex check match = [ null, selector, null ]; } else { match = rquickExpr.exec( selector ); } // Match html or make sure no context is specified for #id if ( match && ( match[ 1 ] || !context ) ) { // HANDLE: $(html) -> $(array) if ( match[ 1 ] ) { context = context instanceof jQuery ? context[ 0 ] : context; // Option to run scripts is true for back-compat // Intentionally let the error be thrown if parseHTML is not present jQuery.merge( this, jQuery.parseHTML( match[ 1 ], context && context.nodeType ? context.ownerDocument || context : document, true ) ); // HANDLE: $(html, props) if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) { for ( match in context ) { // Properties of context are called as methods if possible if ( jQuery.isFunction( this[ match ] ) ) { this[ match ]( context[ match ] ); // ...and otherwise set as attributes } else { this.attr( match, context[ match ] ); } } } return this; // HANDLE: $(#id) } else { elem = document.getElementById( match[ 2 ] ); if ( elem ) { // Inject the element directly into the jQuery object this[ 0 ] = elem; this.length = 1; } return this; } // HANDLE: $(expr, $(...)) } else if ( !context || context.jquery ) { return ( context || root ).find( selector ); // HANDLE: $(expr, context) // (which is just equivalent to: $(context).find(expr) } else { return this.constructor( context ).find( selector ); } // HANDLE: $(DOMElement) } else if ( selector.nodeType ) { this[ 0 ] = selector; this.length = 1; return this; // HANDLE: $(function) // Shortcut for document ready } else if ( jQuery.isFunction( selector ) ) { return root.ready !== undefined ? root.ready( selector ) : // Execute immediately if ready is not present selector( jQuery ); } return jQuery.makeArray( selector, this ); }; // Give the init function the jQuery prototype for later instantiation init.prototype = jQuery.fn; // Initialize central reference rootjQuery = jQuery( document ); var rparentsprev = /^(?:parents|prev(?:Until|All))/, // Methods guaranteed to produce a unique set when starting from a unique set guaranteedUnique = { children: true, contents: true, next: true, prev: true }; jQuery.fn.extend( { has: function( target ) { var targets = jQuery( target, this ), l = targets.length; return this.filter( function() { var i = 0; for ( ; i < l; i++ ) { if ( jQuery.contains( this, targets[ i ] ) ) { return true; } } } ); }, closest: function( selectors, context ) { var cur, i = 0, l = this.length, matched = [], targets = typeof selectors !== "string" && jQuery( selectors ); // Positional selectors never match, since there's no _selection_ context if ( !rneedsContext.test( selectors ) ) { for ( ; i < l; i++ ) { for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) { // Always skip document fragments if ( cur.nodeType < 11 && ( targets ? targets.index( cur ) > -1 : // Don't pass non-elements to Sizzle cur.nodeType === 1 && jQuery.find.matchesSelector( cur, selectors ) ) ) { matched.push( cur ); break; } } } } return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched ); }, // Determine the position of an element within the set index: function( elem ) { // No argument, return index in parent if ( !elem ) { return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1; } // Index in selector if ( typeof elem === "string" ) { return indexOf.call( jQuery( elem ), this[ 0 ] ); } // Locate the position of the desired element return indexOf.call( this, // If it receives a jQuery object, the first element is used elem.jquery ? elem[ 0 ] : elem ); }, add: function( selector, context ) { return this.pushStack( jQuery.uniqueSort( jQuery.merge( this.get(), jQuery( selector, context ) ) ) ); }, addBack: function( selector ) { return this.add( selector == null ? this.prevObject : this.prevObject.filter( selector ) ); } } ); function sibling( cur, dir ) { while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {} return cur; } jQuery.each( { parent: function( elem ) { var parent = elem.parentNode; return parent && parent.nodeType !== 11 ? parent : null; }, parents: function( elem ) { return dir( elem, "parentNode" ); }, parentsUntil: function( elem, i, until ) { return dir( elem, "parentNode", until ); }, next: function( elem ) { return sibling( elem, "nextSibling" ); }, prev: function( elem ) { return sibling( elem, "previousSibling" ); }, nextAll: function( elem ) { return dir( elem, "nextSibling" ); }, prevAll: function( elem ) { return dir( elem, "previousSibling" ); }, nextUntil: function( elem, i, until ) { return dir( elem, "nextSibling", until ); }, prevUntil: function( elem, i, until ) { return dir( elem, "previousSibling", until ); }, siblings: function( elem ) { return siblings( ( elem.parentNode || {} ).firstChild, elem ); }, children: function( elem ) { return siblings( elem.firstChild ); }, contents: function( elem ) { if ( nodeName( elem, "iframe" ) ) { return elem.contentDocument; } // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only // Treat the template element as a regular one in browsers that // don't support it. if ( nodeName( elem, "template" ) ) { elem = elem.content || elem; } return jQuery.merge( [], elem.childNodes ); } }, function( name, fn ) { jQuery.fn[ name ] = function( until, selector ) { var matched = jQuery.map( this, fn, until ); if ( name.slice( -5 ) !== "Until" ) { selector = until; } if ( selector && typeof selector === "string" ) { matched = jQuery.filter( selector, matched ); } if ( this.length > 1 ) { // Remove duplicates if ( !guaranteedUnique[ name ] ) { jQuery.uniqueSort( matched ); } // Reverse order for parents* and prev-derivatives if ( rparentsprev.test( name ) ) { matched.reverse(); } } return this.pushStack( matched ); }; } ); var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g ); // Convert String-formatted options into Object-formatted ones function createOptions( options ) { var object = {}; jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) { object[ flag ] = true; } ); return object; } /* * Create a callback list using the following parameters: * * options: an optional list of space-separated options that will change how * the callback list behaves or a more traditional option object * * By default a callback list will act like an event callback list and can be * "fired" multiple times. * * Possible options: * * once: will ensure the callback list can only be fired once (like a Deferred) * * memory: will keep track of previous values and will call any callback added * after the list has been fired right away with the latest "memorized" * values (like a Deferred) * * unique: will ensure a callback can only be added once (no duplicate in the list) * * stopOnFalse: interrupt callings when a callback returns false * */ jQuery.Callbacks = function( options ) { // Convert options from String-formatted to Object-formatted if needed // (we check in cache first) options = typeof options === "string" ? createOptions( options ) : jQuery.extend( {}, options ); var // Flag to know if list is currently firing firing, // Last fire value for non-forgettable lists memory, // Flag to know if list was already fired fired, // Flag to prevent firing locked, // Actual callback list list = [], // Queue of execution data for repeatable lists queue = [], // Index of currently firing callback (modified by add/remove as needed) firingIndex = -1, // Fire callbacks fire = function() { // Enforce single-firing locked = locked || options.once; // Execute callbacks for all pending executions, // respecting firingIndex overrides and runtime changes fired = firing = true; for ( ; queue.length; firingIndex = -1 ) { memory = queue.shift(); while ( ++firingIndex < list.length ) { // Run callback and check for early termination if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false && options.stopOnFalse ) { // Jump to end and forget the data so .add doesn't re-fire firingIndex = list.length; memory = false; } } } // Forget the data if we're done with it if ( !options.memory ) { memory = false; } firing = false; // Clean up if we're done firing for good if ( locked ) { // Keep an empty list if we have data for future add calls if ( memory ) { list = []; // Otherwise, this object is spent } else { list = ""; } } }, // Actual Callbacks object self = { // Add a callback or a collection of callbacks to the list add: function() { if ( list ) { // If we have memory from a past run, we should fire after adding if ( memory && !firing ) { firingIndex = list.length - 1; queue.push( memory ); } ( function add( args ) { jQuery.each( args, function( _, arg ) { if ( jQuery.isFunction( arg ) ) { if ( !options.unique || !self.has( arg ) ) { list.push( arg ); } } else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) { // Inspect recursively add( arg ); } } ); } )( arguments ); if ( memory && !firing ) { fire(); } } return this; }, // Remove a callback from the list remove: function() { jQuery.each( arguments, function( _, arg ) { var index; while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) { list.splice( index, 1 ); // Handle firing indexes if ( index <= firingIndex ) { firingIndex--; } } } ); return this; }, // Check if a given callback is in the list. // If no argument is given, return whether or not list has callbacks attached. has: function( fn ) { return fn ? jQuery.inArray( fn, list ) > -1 : list.length > 0; }, // Remove all callbacks from the list empty: function() { if ( list ) { list = []; } return this; }, // Disable .fire and .add // Abort any current/pending executions // Clear all callbacks and values disable: function() { locked = queue = []; list = memory = ""; return this; }, disabled: function() { return !list; }, // Disable .fire // Also disable .add unless we have memory (since it would have no effect) // Abort any pending executions lock: function() { locked = queue = []; if ( !memory && !firing ) { list = memory = ""; } return this; }, locked: function() { return !!locked; }, // Call all callbacks with the given context and arguments fireWith: function( context, args ) { if ( !locked ) { args = args || []; args = [ context, args.slice ? args.slice() : args ]; queue.push( args ); if ( !firing ) { fire(); } } return this; }, // Call all the callbacks with the given arguments fire: function() { self.fireWith( this, arguments ); return this; }, // To know if the callbacks have already been called at least once fired: function() { return !!fired; } }; return self; }; function Identity( v ) { return v; } function Thrower( ex ) { throw ex; } function adoptValue( value, resolve, reject, noValue ) { var method; try { // Check for promise aspect first to privilege synchronous behavior if ( value && jQuery.isFunction( ( method = value.promise ) ) ) { method.call( value ).done( resolve ).fail( reject ); // Other thenables } else if ( value && jQuery.isFunction( ( method = value.then ) ) ) { method.call( value, resolve, reject ); // Other non-thenables } else { // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer: // * false: [ value ].slice( 0 ) => resolve( value ) // * true: [ value ].slice( 1 ) => resolve() resolve.apply( undefined, [ value ].slice( noValue ) ); } // For Promises/A+, convert exceptions into rejections // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in // Deferred#then to conditionally suppress rejection. } catch ( value ) { // Support: Android 4.0 only // Strict mode functions invoked without .call/.apply get global-object context reject.apply( undefined, [ value ] ); } } jQuery.extend( { Deferred: function( func ) { var tuples = [ // action, add listener, callbacks, // ... .then handlers, argument index, [final state] [ "notify", "progress", jQuery.Callbacks( "memory" ), jQuery.Callbacks( "memory" ), 2 ], [ "resolve", "done", jQuery.Callbacks( "once memory" ), jQuery.Callbacks( "once memory" ), 0, "resolved" ], [ "reject", "fail", jQuery.Callbacks( "once memory" ), jQuery.Callbacks( "once memory" ), 1, "rejected" ] ], state = "pending", promise = { state: function() { return state; }, always: function() { deferred.done( arguments ).fail( arguments ); return this; }, "catch": function( fn ) { return promise.then( null, fn ); }, // Keep pipe for back-compat pipe: function( /* fnDone, fnFail, fnProgress */ ) { var fns = arguments; return jQuery.Deferred( function( newDefer ) { jQuery.each( tuples, function( i, tuple ) { // Map tuples (progress, done, fail) to arguments (done, fail, progress) var fn = jQuery.isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ]; // deferred.progress(function() { bind to newDefer or newDefer.notify }) // deferred.done(function() { bind to newDefer or newDefer.resolve }) // deferred.fail(function() { bind to newDefer or newDefer.reject }) deferred[ tuple[ 1 ] ]( function() { var returned = fn && fn.apply( this, arguments ); if ( returned && jQuery.isFunction( returned.promise ) ) { returned.promise() .progress( newDefer.notify ) .done( newDefer.resolve ) .fail( newDefer.reject ); } else { newDefer[ tuple[ 0 ] + "With" ]( this, fn ? [ returned ] : arguments ); } } ); } ); fns = null; } ).promise(); }, then: function( onFulfilled, onRejected, onProgress ) { var maxDepth = 0; function resolve( depth, deferred, handler, special ) { return function() { var that = this, args = arguments, mightThrow = function() { var returned, then; // Support: Promises/A+ section 2.3.3.3.3 // https://promisesaplus.com/#point-59 // Ignore double-resolution attempts if ( depth < maxDepth ) { return; } returned = handler.apply( that, args ); // Support: Promises/A+ section 2.3.1 // https://promisesaplus.com/#point-48 if ( returned === deferred.promise() ) { throw new TypeError( "Thenable self-resolution" ); } // Support: Promises/A+ sections 2.3.3.1, 3.5 // https://promisesaplus.com/#point-54 // https://promisesaplus.com/#point-75 // Retrieve `then` only once then = returned && // Support: Promises/A+ section 2.3.4 // https://promisesaplus.com/#point-64 // Only check objects and functions for thenability ( typeof returned === "object" || typeof returned === "function" ) && returned.then; // Handle a returned thenable if ( jQuery.isFunction( then ) ) { // Special processors (notify) just wait for resolution if ( special ) { then.call( returned, resolve( maxDepth, deferred, Identity, special ), resolve( maxDepth, deferred, Thrower, special ) ); // Normal processors (resolve) also hook into progress } else { // ...and disregard older resolution values maxDepth++; then.call( returned, resolve( maxDepth, deferred, Identity, special ), resolve( maxDepth, deferred, Thrower, special ), resolve( maxDepth, deferred, Identity, deferred.notifyWith ) ); } // Handle all other returned values } else { // Only substitute handlers pass on context // and multiple values (non-spec behavior) if ( handler !== Identity ) { that = undefined; args = [ returned ]; } // Process the value(s) // Default process is resolve ( special || deferred.resolveWith )( that, args ); } }, // Only normal processors (resolve) catch and reject exceptions process = special ? mightThrow : function() { try { mightThrow(); } catch ( e ) { if ( jQuery.Deferred.exceptionHook ) { jQuery.Deferred.exceptionHook( e, process.stackTrace ); } // Support: Promises/A+ section 2.3.3.3.4.1 // https://promisesaplus.com/#point-61 // Ignore post-resolution exceptions if ( depth + 1 >= maxDepth ) { // Only substitute handlers pass on context // and multiple values (non-spec behavior) if ( handler !== Thrower ) { that = undefined; args = [ e ]; } deferred.rejectWith( that, args ); } } }; // Support: Promises/A+ section 2.3.3.3.1 // https://promisesaplus.com/#point-57 // Re-resolve promises immediately to dodge false rejection from // subsequent errors if ( depth ) { process(); } else { // Call an optional hook to record the stack, in case of exception // since it's otherwise lost when execution goes async if ( jQuery.Deferred.getStackHook ) { process.stackTrace = jQuery.Deferred.getStackHook(); } window.setTimeout( process ); } }; } return jQuery.Deferred( function( newDefer ) { // progress_handlers.add( ... ) tuples[ 0 ][ 3 ].add( resolve( 0, newDefer, jQuery.isFunction( onProgress ) ? onProgress : Identity, newDefer.notifyWith ) ); // fulfilled_handlers.add( ... ) tuples[ 1 ][ 3 ].add( resolve( 0, newDefer, jQuery.isFunction( onFulfilled ) ? onFulfilled : Identity ) ); // rejected_handlers.add( ... ) tuples[ 2 ][ 3 ].add( resolve( 0, newDefer, jQuery.isFunction( onRejected ) ? onRejected : Thrower ) ); } ).promise(); }, // Get a promise for this deferred // If obj is provided, the promise aspect is added to the object promise: function( obj ) { return obj != null ? jQuery.extend( obj, promise ) : promise; } }, deferred = {}; // Add list-specific methods jQuery.each( tuples, function( i, tuple ) { var list = tuple[ 2 ], stateString = tuple[ 5 ]; // promise.progress = list.add // promise.done = list.add // promise.fail = list.add promise[ tuple[ 1 ] ] = list.add; // Handle state if ( stateString ) { list.add( function() { // state = "resolved" (i.e., fulfilled) // state = "rejected" state = stateString; }, // rejected_callbacks.disable // fulfilled_callbacks.disable tuples[ 3 - i ][ 2 ].disable, // progress_callbacks.lock tuples[ 0 ][ 2 ].lock ); } // progress_handlers.fire // fulfilled_handlers.fire // rejected_handlers.fire list.add( tuple[ 3 ].fire ); // deferred.notify = function() { deferred.notifyWith(...) } // deferred.resolve = function() { deferred.resolveWith(...) } // deferred.reject = function() { deferred.rejectWith(...) } deferred[ tuple[ 0 ] ] = function() { deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments ); return this; }; // deferred.notifyWith = list.fireWith // deferred.resolveWith = list.fireWith // deferred.rejectWith = list.fireWith deferred[ tuple[ 0 ] + "With" ] = list.fireWith; } ); // Make the deferred a promise promise.promise( deferred ); // Call given func if any if ( func ) { func.call( deferred, deferred ); } // All done! return deferred; }, // Deferred helper when: function( singleValue ) { var // count of uncompleted subordinates remaining = arguments.length, // count of unprocessed arguments i = remaining, // subordinate fulfillment data resolveContexts = Array( i ), resolveValues = slice.call( arguments ), // the master Deferred master = jQuery.Deferred(), // subordinate callback factory updateFunc = function( i ) { return function( value ) { resolveContexts[ i ] = this; resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value; if ( !( --remaining ) ) { master.resolveWith( resolveContexts, resolveValues ); } }; }; // Single- and empty arguments are adopted like Promise.resolve if ( remaining <= 1 ) { adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject, !remaining ); // Use .then() to unwrap secondary thenables (cf. gh-3000) if ( master.state() === "pending" || jQuery.isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) { return master.then(); } } // Multiple arguments are aggregated like Promise.all array elements while ( i-- ) { adoptValue( resolveValues[ i ], updateFunc( i ), master.reject ); } return master.promise(); } } ); // These usually indicate a programmer mistake during development, // warn about them ASAP rather than swallowing them by default. var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/; jQuery.Deferred.exceptionHook = function( error, stack ) { // Support: IE 8 - 9 only // Console exists when dev tools are open, which can happen at any time if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) { window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack ); } }; jQuery.readyException = function( error ) { window.setTimeout( function() { throw error; } ); }; // The deferred used on DOM ready var readyList = jQuery.Deferred(); jQuery.fn.ready = function( fn ) { readyList .then( fn ) // Wrap jQuery.readyException in a function so that the lookup // happens at the time of error handling instead of callback // registration. .catch( function( error ) { jQuery.readyException( error ); } ); return this; }; jQuery.extend( { // Is the DOM ready to be used? Set to true once it occurs. isReady: false, // A counter to track how many items to wait for before // the ready event fires. See #6781 readyWait: 1, // Handle when the DOM is ready ready: function( wait ) { // Abort if there are pending holds or we're already ready if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) { return; } // Remember that the DOM is ready jQuery.isReady = true; // If a normal DOM Ready event fired, decrement, and wait if need be if ( wait !== true && --jQuery.readyWait > 0 ) { return; } // If there are functions bound, to execute readyList.resolveWith( document, [ jQuery ] ); } } ); jQuery.ready.then = readyList.then; // The ready event handler and self cleanup method function completed() { document.removeEventListener( "DOMContentLoaded", completed ); window.removeEventListener( "load", completed ); jQuery.ready(); } // Catch cases where $(document).ready() is called // after the browser event has already occurred. // Support: IE <=9 - 10 only // Older IE sometimes signals "interactive" too soon if ( document.readyState === "complete" || ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) { // Handle it asynchronously to allow scripts the opportunity to delay ready window.setTimeout( jQuery.ready ); } else { // Use the handy event callback document.addEventListener( "DOMContentLoaded", completed ); // A fallback to window.onload, that will always work window.addEventListener( "load", completed ); } // Multifunctional method to get and set values of a collection // The value/s can optionally be executed if it's a function var access = function( elems, fn, key, value, chainable, emptyGet, raw ) { var i = 0, len = elems.length, bulk = key == null; // Sets many values if ( jQuery.type( key ) === "object" ) { chainable = true; for ( i in key ) { access( elems, fn, i, key[ i ], true, emptyGet, raw ); } // Sets one value } else if ( value !== undefined ) { chainable = true; if ( !jQuery.isFunction( value ) ) { raw = true; } if ( bulk ) { // Bulk operations run against the entire set if ( raw ) { fn.call( elems, value ); fn = null; // ...except when executing function values } else { bulk = fn; fn = function( elem, key, value ) { return bulk.call( jQuery( elem ), value ); }; } } if ( fn ) { for ( ; i < len; i++ ) { fn( elems[ i ], key, raw ? value : value.call( elems[ i ], i, fn( elems[ i ], key ) ) ); } } } if ( chainable ) { return elems; } // Gets if ( bulk ) { return fn.call( elems ); } return len ? fn( elems[ 0 ], key ) : emptyGet; }; var acceptData = function( owner ) { // Accepts only: // - Node // - Node.ELEMENT_NODE // - Node.DOCUMENT_NODE // - Object // - Any return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType ); }; function Data() { this.expando = jQuery.expando + Data.uid++; } Data.uid = 1; Data.prototype = { cache: function( owner ) { // Check if the owner object already has a cache var value = owner[ this.expando ]; // If not, create one if ( !value ) { value = {}; // We can accept data for non-element nodes in modern browsers, // but we should not, see #8335. // Always return an empty object. if ( acceptData( owner ) ) { // If it is a node unlikely to be stringify-ed or looped over // use plain assignment if ( owner.nodeType ) { owner[ this.expando ] = value; // Otherwise secure it in a non-enumerable property // configurable must be true to allow the property to be // deleted when data is removed } else { Object.defineProperty( owner, this.expando, { value: value, configurable: true } ); } } } return value; }, set: function( owner, data, value ) { var prop, cache = this.cache( owner ); // Handle: [ owner, key, value ] args // Always use camelCase key (gh-2257) if ( typeof data === "string" ) { cache[ jQuery.camelCase( data ) ] = value; // Handle: [ owner, { properties } ] args } else { // Copy the properties one-by-one to the cache object for ( prop in data ) { cache[ jQuery.camelCase( prop ) ] = data[ prop ]; } } return cache; }, get: function( owner, key ) { return key === undefined ? this.cache( owner ) : // Always use camelCase key (gh-2257) owner[ this.expando ] && owner[ this.expando ][ jQuery.camelCase( key ) ]; }, access: function( owner, key, value ) { // In cases where either: // // 1. No key was specified // 2. A string key was specified, but no value provided // // Take the "read" path and allow the get method to determine // which value to return, respectively either: // // 1. The entire cache object // 2. The data stored at the key // if ( key === undefined || ( ( key && typeof key === "string" ) && value === undefined ) ) { return this.get( owner, key ); } // When the key is not a string, or both a key and value // are specified, set or extend (existing objects) with either: // // 1. An object of properties // 2. A key and value // this.set( owner, key, value ); // Since the "set" path can have two possible entry points // return the expected data based on which path was taken[*] return value !== undefined ? value : key; }, remove: function( owner, key ) { var i, cache = owner[ this.expando ]; if ( cache === undefined ) { return; } if ( key !== undefined ) { // Support array or space separated string of keys if ( Array.isArray( key ) ) { // If key is an array of keys... // We always set camelCase keys, so remove that. key = key.map( jQuery.camelCase ); } else { key = jQuery.camelCase( key ); // If a key with the spaces exists, use it. // Otherwise, create an array by matching non-whitespace key = key in cache ? [ key ] : ( key.match( rnothtmlwhite ) || [] ); } i = key.length; while ( i-- ) { delete cache[ key[ i ] ]; } } // Remove the expando if there's no more data if ( key === undefined || jQuery.isEmptyObject( cache ) ) { // Support: Chrome <=35 - 45 // Webkit & Blink performance suffers when deleting properties // from DOM nodes, so set to undefined instead // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted) if ( owner.nodeType ) { owner[ this.expando ] = undefined; } else { delete owner[ this.expando ]; } } }, hasData: function( owner ) { var cache = owner[ this.expando ]; return cache !== undefined && !jQuery.isEmptyObject( cache ); } }; var dataPriv = new Data(); var dataUser = new Data(); // Implementation Summary // // 1. Enforce API surface and semantic compatibility with 1.9.x branch // 2. Improve the module's maintainability by reducing the storage // paths to a single mechanism. // 3. Use the same single mechanism to support "private" and "user" data. // 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData) // 5. Avoid exposing implementation details on user objects (eg. expando properties) // 6. Provide a clear path for implementation upgrade to WeakMap in 2014 var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/, rmultiDash = /[A-Z]/g; function getData( data ) { if ( data === "true" ) { return true; } if ( data === "false" ) { return false; } if ( data === "null" ) { return null; } // Only convert to a number if it doesn't change the string if ( data === +data + "" ) { return +data; } if ( rbrace.test( data ) ) { return JSON.parse( data ); } return data; } function dataAttr( elem, key, data ) { var name; // If nothing was found internally, try to fetch any // data from the HTML5 data-* attribute if ( data === undefined && elem.nodeType === 1 ) { name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase(); data = elem.getAttribute( name ); if ( typeof data === "string" ) { try { data = getData( data ); } catch ( e ) {} // Make sure we set the data so it isn't changed later dataUser.set( elem, key, data ); } else { data = undefined; } } return data; } jQuery.extend( { hasData: function( elem ) { return dataUser.hasData( elem ) || dataPriv.hasData( elem ); }, data: function( elem, name, data ) { return dataUser.access( elem, name, data ); }, removeData: function( elem, name ) { dataUser.remove( elem, name ); }, // TODO: Now that all calls to _data and _removeData have been replaced // with direct calls to dataPriv methods, these can be deprecated. _data: function( elem, name, data ) { return dataPriv.access( elem, name, data ); }, _removeData: function( elem, name ) { dataPriv.remove( elem, name ); } } ); jQuery.fn.extend( { data: function( key, value ) { var i, name, data, elem = this[ 0 ], attrs = elem && elem.attributes; // Gets all values if ( key === undefined ) { if ( this.length ) { data = dataUser.get( elem ); if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) { i = attrs.length; while ( i-- ) { // Support: IE 11 only // The attrs elements can be null (#14894) if ( attrs[ i ] ) { name = attrs[ i ].name; if ( name.indexOf( "data-" ) === 0 ) { name = jQuery.camelCase( name.slice( 5 ) ); dataAttr( elem, name, data[ name ] ); } } } dataPriv.set( elem, "hasDataAttrs", true ); } } return data; } // Sets multiple values if ( typeof key === "object" ) { return this.each( function() { dataUser.set( this, key ); } ); } return access( this, function( value ) { var data; // The calling jQuery object (element matches) is not empty // (and therefore has an element appears at this[ 0 ]) and the // `value` parameter was not undefined. An empty jQuery object // will result in `undefined` for elem = this[ 0 ] which will // throw an exception if an attempt to read a data cache is made. if ( elem && value === undefined ) { // Attempt to get data from the cache // The key will always be camelCased in Data data = dataUser.get( elem, key ); if ( data !== undefined ) { return data; } // Attempt to "discover" the data in // HTML5 custom data-* attrs data = dataAttr( elem, key ); if ( data !== undefined ) { return data; } // We tried really hard, but the data doesn't exist. return; } // Set the data... this.each( function() { // We always store the camelCased key dataUser.set( this, key, value ); } ); }, null, value, arguments.length > 1, null, true ); }, removeData: function( key ) { return this.each( function() { dataUser.remove( this, key ); } ); } } ); jQuery.extend( { queue: function( elem, type, data ) { var queue; if ( elem ) { type = ( type || "fx" ) + "queue"; queue = dataPriv.get( elem, type ); // Speed up dequeue by getting out quickly if this is just a lookup if ( data ) { if ( !queue || Array.isArray( data ) ) { queue = dataPriv.access( elem, type, jQuery.makeArray( data ) ); } else { queue.push( data ); } } return queue || []; } }, dequeue: function( elem, type ) { type = type || "fx"; var queue = jQuery.queue( elem, type ), startLength = queue.length, fn = queue.shift(), hooks = jQuery._queueHooks( elem, type ), next = function() { jQuery.dequeue( elem, type ); }; // If the fx queue is dequeued, always remove the progress sentinel if ( fn === "inprogress" ) { fn = queue.shift(); startLength--; } if ( fn ) { // Add a progress sentinel to prevent the fx queue from being // automatically dequeued if ( type === "fx" ) { queue.unshift( "inprogress" ); } // Clear up the last queue stop function delete hooks.stop; fn.call( elem, next, hooks ); } if ( !startLength && hooks ) { hooks.empty.fire(); } }, // Not public - generate a queueHooks object, or return the current one _queueHooks: function( elem, type ) { var key = type + "queueHooks"; return dataPriv.get( elem, key ) || dataPriv.access( elem, key, { empty: jQuery.Callbacks( "once memory" ).add( function() { dataPriv.remove( elem, [ type + "queue", key ] ); } ) } ); } } ); jQuery.fn.extend( { queue: function( type, data ) { var setter = 2; if ( typeof type !== "string" ) { data = type; type = "fx"; setter--; } if ( arguments.length < setter ) { return jQuery.queue( this[ 0 ], type ); } return data === undefined ? this : this.each( function() { var queue = jQuery.queue( this, type, data ); // Ensure a hooks for this queue jQuery._queueHooks( this, type ); if ( type === "fx" && queue[ 0 ] !== "inprogress" ) { jQuery.dequeue( this, type ); } } ); }, dequeue: function( type ) { return this.each( function() { jQuery.dequeue( this, type ); } ); }, clearQueue: function( type ) { return this.queue( type || "fx", [] ); }, // Get a promise resolved when queues of a certain type // are emptied (fx is the type by default) promise: function( type, obj ) { var tmp, count = 1, defer = jQuery.Deferred(), elements = this, i = this.length, resolve = function() { if ( !( --count ) ) { defer.resolveWith( elements, [ elements ] ); } }; if ( typeof type !== "string" ) { obj = type; type = undefined; } type = type || "fx"; while ( i-- ) { tmp = dataPriv.get( elements[ i ], type + "queueHooks" ); if ( tmp && tmp.empty ) { count++; tmp.empty.add( resolve ); } } resolve(); return defer.promise( obj ); } } ); var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source; var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" ); var cssExpand = [ "Top", "Right", "Bottom", "Left" ]; var isHiddenWithinTree = function( elem, el ) { // isHiddenWithinTree might be called from jQuery#filter function; // in that case, element will be second argument elem = el || elem; // Inline style trumps all return elem.style.display === "none" || elem.style.display === "" && // Otherwise, check computed style // Support: Firefox <=43 - 45 // Disconnected elements can have computed display: none, so first confirm that elem is // in the document. jQuery.contains( elem.ownerDocument, elem ) && jQuery.css( elem, "display" ) === "none"; }; var swap = function( elem, options, callback, args ) { var ret, name, old = {}; // Remember the old values, and insert the new ones for ( name in options ) { old[ name ] = elem.style[ name ]; elem.style[ name ] = options[ name ]; } ret = callback.apply( elem, args || [] ); // Revert the old values for ( name in options ) { elem.style[ name ] = old[ name ]; } return ret; }; function adjustCSS( elem, prop, valueParts, tween ) { var adjusted, scale = 1, maxIterations = 20, currentValue = tween ? function() { return tween.cur(); } : function() { return jQuery.css( elem, prop, "" ); }, initial = currentValue(), unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ), // Starting value computation is required for potential unit mismatches initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) && rcssNum.exec( jQuery.css( elem, prop ) ); if ( initialInUnit && initialInUnit[ 3 ] !== unit ) { // Trust units reported by jQuery.css unit = unit || initialInUnit[ 3 ]; // Make sure we update the tween properties later on valueParts = valueParts || []; // Iteratively approximate from a nonzero starting point initialInUnit = +initial || 1; do { // If previous iteration zeroed out, double until we get *something*. // Use string for doubling so we don't accidentally see scale as unchanged below scale = scale || ".5"; // Adjust and apply initialInUnit = initialInUnit / scale; jQuery.style( elem, prop, initialInUnit + unit ); // Update scale, tolerating zero or NaN from tween.cur() // Break the loop if scale is unchanged or perfect, or if we've just had enough. } while ( scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations ); } if ( valueParts ) { initialInUnit = +initialInUnit || +initial || 0; // Apply relative offset (+=/-=) if specified adjusted = valueParts[ 1 ] ? initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] : +valueParts[ 2 ]; if ( tween ) { tween.unit = unit; tween.start = initialInUnit; tween.end = adjusted; } } return adjusted; } var defaultDisplayMap = {}; function getDefaultDisplay( elem ) { var temp, doc = elem.ownerDocument, nodeName = elem.nodeName, display = defaultDisplayMap[ nodeName ]; if ( display ) { return display; } temp = doc.body.appendChild( doc.createElement( nodeName ) ); display = jQuery.css( temp, "display" ); temp.parentNode.removeChild( temp ); if ( display === "none" ) { display = "block"; } defaultDisplayMap[ nodeName ] = display; return display; } function showHide( elements, show ) { var display, elem, values = [], index = 0, length = elements.length; // Determine new display value for elements that need to change for ( ; index < length; index++ ) { elem = elements[ index ]; if ( !elem.style ) { continue; } display = elem.style.display; if ( show ) { // Since we force visibility upon cascade-hidden elements, an immediate (and slow) // check is required in this first loop unless we have a nonempty display value (either // inline or about-to-be-restored) if ( display === "none" ) { values[ index ] = dataPriv.get( elem, "display" ) || null; if ( !values[ index ] ) { elem.style.display = ""; } } if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) { values[ index ] = getDefaultDisplay( elem ); } } else { if ( display !== "none" ) { values[ index ] = "none"; // Remember what we're overwriting dataPriv.set( elem, "display", display ); } } } // Set the display of the elements in a second loop to avoid constant reflow for ( index = 0; index < length; index++ ) { if ( values[ index ] != null ) { elements[ index ].style.display = values[ index ]; } } return elements; } jQuery.fn.extend( { show: function() { return showHide( this, true ); }, hide: function() { return showHide( this ); }, toggle: function( state ) { if ( typeof state === "boolean" ) { return state ? this.show() : this.hide(); } return this.each( function() { if ( isHiddenWithinTree( this ) ) { jQuery( this ).show(); } else { jQuery( this ).hide(); } } ); } } ); var rcheckableType = ( /^(?:checkbox|radio)$/i ); var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]+)/i ); var rscriptType = ( /^$|\/(?:java|ecma)script/i ); // We have to close these tags to support XHTML (#13200) var wrapMap = { // Support: IE <=9 only option: [ 1, "" ], // XHTML parsers do not magically insert elements in the // same way that tag soup parsers do. So we cannot shorten // this by omitting or other required elements. thead: [ 1, "", "
" ], col: [ 2, "", "
" ], tr: [ 2, "", "
" ], td: [ 3, "", "
" ], _default: [ 0, "", "" ] }; // Support: IE <=9 only wrapMap.optgroup = wrapMap.option; wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead; wrapMap.th = wrapMap.td; function getAll( context, tag ) { // Support: IE <=9 - 11 only // Use typeof to avoid zero-argument method invocation on host objects (#15151) var ret; if ( typeof context.getElementsByTagName !== "undefined" ) { ret = context.getElementsByTagName( tag || "*" ); } else if ( typeof context.querySelectorAll !== "undefined" ) { ret = context.querySelectorAll( tag || "*" ); } else { ret = []; } if ( tag === undefined || tag && nodeName( context, tag ) ) { return jQuery.merge( [ context ], ret ); } return ret; } // Mark scripts as having already been evaluated function setGlobalEval( elems, refElements ) { var i = 0, l = elems.length; for ( ; i < l; i++ ) { dataPriv.set( elems[ i ], "globalEval", !refElements || dataPriv.get( refElements[ i ], "globalEval" ) ); } } var rhtml = /<|&#?\w+;/; function buildFragment( elems, context, scripts, selection, ignored ) { var elem, tmp, tag, wrap, contains, j, fragment = context.createDocumentFragment(), nodes = [], i = 0, l = elems.length; for ( ; i < l; i++ ) { elem = elems[ i ]; if ( elem || elem === 0 ) { // Add nodes directly if ( jQuery.type( elem ) === "object" ) { // Support: Android <=4.0 only, PhantomJS 1 only // push.apply(_, arraylike) throws on ancient WebKit jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem ); // Convert non-html into a text node } else if ( !rhtml.test( elem ) ) { nodes.push( context.createTextNode( elem ) ); // Convert html into DOM nodes } else { tmp = tmp || fragment.appendChild( context.createElement( "div" ) ); // Deserialize a standard representation tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase(); wrap = wrapMap[ tag ] || wrapMap._default; tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ]; // Descend through wrappers to the right content j = wrap[ 0 ]; while ( j-- ) { tmp = tmp.lastChild; } // Support: Android <=4.0 only, PhantomJS 1 only // push.apply(_, arraylike) throws on ancient WebKit jQuery.merge( nodes, tmp.childNodes ); // Remember the top-level container tmp = fragment.firstChild; // Ensure the created nodes are orphaned (#12392) tmp.textContent = ""; } } } // Remove wrapper from fragment fragment.textContent = ""; i = 0; while ( ( elem = nodes[ i++ ] ) ) { // Skip elements already in the context collection (trac-4087) if ( selection && jQuery.inArray( elem, selection ) > -1 ) { if ( ignored ) { ignored.push( elem ); } continue; } contains = jQuery.contains( elem.ownerDocument, elem ); // Append to fragment tmp = getAll( fragment.appendChild( elem ), "script" ); // Preserve script evaluation history if ( contains ) { setGlobalEval( tmp ); } // Capture executables if ( scripts ) { j = 0; while ( ( elem = tmp[ j++ ] ) ) { if ( rscriptType.test( elem.type || "" ) ) { scripts.push( elem ); } } } } return fragment; } ( function() { var fragment = document.createDocumentFragment(), div = fragment.appendChild( document.createElement( "div" ) ), input = document.createElement( "input" ); // Support: Android 4.0 - 4.3 only // Check state lost if the name is set (#11217) // Support: Windows Web Apps (WWA) // `name` and `type` must use .setAttribute for WWA (#14901) input.setAttribute( "type", "radio" ); input.setAttribute( "checked", "checked" ); input.setAttribute( "name", "t" ); div.appendChild( input ); // Support: Android <=4.1 only // Older WebKit doesn't clone checked state correctly in fragments support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked; // Support: IE <=11 only // Make sure textarea (and checkbox) defaultValue is properly cloned div.innerHTML = ""; support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue; } )(); var documentElement = document.documentElement; var rkeyEvent = /^key/, rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/, rtypenamespace = /^([^.]*)(?:\.(.+)|)/; function returnTrue() { return true; } function returnFalse() { return false; } // Support: IE <=9 only // See #13393 for more info function safeActiveElement() { try { return document.activeElement; } catch ( err ) { } } function on( elem, types, selector, data, fn, one ) { var origFn, type; // Types can be a map of types/handlers if ( typeof types === "object" ) { // ( types-Object, selector, data ) if ( typeof selector !== "string" ) { // ( types-Object, data ) data = data || selector; selector = undefined; } for ( type in types ) { on( elem, type, selector, data, types[ type ], one ); } return elem; } if ( data == null && fn == null ) { // ( types, fn ) fn = selector; data = selector = undefined; } else if ( fn == null ) { if ( typeof selector === "string" ) { // ( types, selector, fn ) fn = data; data = undefined; } else { // ( types, data, fn ) fn = data; data = selector; selector = undefined; } } if ( fn === false ) { fn = returnFalse; } else if ( !fn ) { return elem; } if ( one === 1 ) { origFn = fn; fn = function( event ) { // Can use an empty set, since event contains the info jQuery().off( event ); return origFn.apply( this, arguments ); }; // Use same guid so caller can remove using origFn fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ ); } return elem.each( function() { jQuery.event.add( this, types, fn, data, selector ); } ); } /* * Helper functions for managing events -- not part of the public interface. * Props to Dean Edwards' addEvent library for many of the ideas. */ jQuery.event = { global: {}, add: function( elem, types, handler, data, selector ) { var handleObjIn, eventHandle, tmp, events, t, handleObj, special, handlers, type, namespaces, origType, elemData = dataPriv.get( elem ); // Don't attach events to noData or text/comment nodes (but allow plain objects) if ( !elemData ) { return; } // Caller can pass in an object of custom data in lieu of the handler if ( handler.handler ) { handleObjIn = handler; handler = handleObjIn.handler; selector = handleObjIn.selector; } // Ensure that invalid selectors throw exceptions at attach time // Evaluate against documentElement in case elem is a non-element node (e.g., document) if ( selector ) { jQuery.find.matchesSelector( documentElement, selector ); } // Make sure that the handler has a unique ID, used to find/remove it later if ( !handler.guid ) { handler.guid = jQuery.guid++; } // Init the element's event structure and main handler, if this is the first if ( !( events = elemData.events ) ) { events = elemData.events = {}; } if ( !( eventHandle = elemData.handle ) ) { eventHandle = elemData.handle = function( e ) { // Discard the second event of a jQuery.event.trigger() and // when an event is called after a page has unloaded return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ? jQuery.event.dispatch.apply( elem, arguments ) : undefined; }; } // Handle multiple events separated by a space types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; t = types.length; while ( t-- ) { tmp = rtypenamespace.exec( types[ t ] ) || []; type = origType = tmp[ 1 ]; namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); // There *must* be a type, no attaching namespace-only handlers if ( !type ) { continue; } // If event changes its type, use the special event handlers for the changed type special = jQuery.event.special[ type ] || {}; // If selector defined, determine special event api type, otherwise given type type = ( selector ? special.delegateType : special.bindType ) || type; // Update special based on newly reset type special = jQuery.event.special[ type ] || {}; // handleObj is passed to all event handlers handleObj = jQuery.extend( { type: type, origType: origType, data: data, handler: handler, guid: handler.guid, selector: selector, needsContext: selector && jQuery.expr.match.needsContext.test( selector ), namespace: namespaces.join( "." ) }, handleObjIn ); // Init the event handler queue if we're the first if ( !( handlers = events[ type ] ) ) { handlers = events[ type ] = []; handlers.delegateCount = 0; // Only use addEventListener if the special events handler returns false if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) { if ( elem.addEventListener ) { elem.addEventListener( type, eventHandle ); } } } if ( special.add ) { special.add.call( elem, handleObj ); if ( !handleObj.handler.guid ) { handleObj.handler.guid = handler.guid; } } // Add to the element's handler list, delegates in front if ( selector ) { handlers.splice( handlers.delegateCount++, 0, handleObj ); } else { handlers.push( handleObj ); } // Keep track of which events have ever been used, for event optimization jQuery.event.global[ type ] = true; } }, // Detach an event or set of events from an element remove: function( elem, types, handler, selector, mappedTypes ) { var j, origCount, tmp, events, t, handleObj, special, handlers, type, namespaces, origType, elemData = dataPriv.hasData( elem ) && dataPriv.get( elem ); if ( !elemData || !( events = elemData.events ) ) { return; } // Once for each type.namespace in types; type may be omitted types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; t = types.length; while ( t-- ) { tmp = rtypenamespace.exec( types[ t ] ) || []; type = origType = tmp[ 1 ]; namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); // Unbind all events (on this namespace, if provided) for the element if ( !type ) { for ( type in events ) { jQuery.event.remove( elem, type + types[ t ], handler, selector, true ); } continue; } special = jQuery.event.special[ type ] || {}; type = ( selector ? special.delegateType : special.bindType ) || type; handlers = events[ type ] || []; tmp = tmp[ 2 ] && new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ); // Remove matching events origCount = j = handlers.length; while ( j-- ) { handleObj = handlers[ j ]; if ( ( mappedTypes || origType === handleObj.origType ) && ( !handler || handler.guid === handleObj.guid ) && ( !tmp || tmp.test( handleObj.namespace ) ) && ( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) { handlers.splice( j, 1 ); if ( handleObj.selector ) { handlers.delegateCount--; } if ( special.remove ) { special.remove.call( elem, handleObj ); } } } // Remove generic event handler if we removed something and no more handlers exist // (avoids potential for endless recursion during removal of special event handlers) if ( origCount && !handlers.length ) { if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) { jQuery.removeEvent( elem, type, elemData.handle ); } delete events[ type ]; } } // Remove data and the expando if it's no longer used if ( jQuery.isEmptyObject( events ) ) { dataPriv.remove( elem, "handle events" ); } }, dispatch: function( nativeEvent ) { // Make a writable jQuery.Event from the native event object var event = jQuery.event.fix( nativeEvent ); var i, j, ret, matched, handleObj, handlerQueue, args = new Array( arguments.length ), handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [], special = jQuery.event.special[ event.type ] || {}; // Use the fix-ed jQuery.Event rather than the (read-only) native event args[ 0 ] = event; for ( i = 1; i < arguments.length; i++ ) { args[ i ] = arguments[ i ]; } event.delegateTarget = this; // Call the preDispatch hook for the mapped type, and let it bail if desired if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) { return; } // Determine handlers handlerQueue = jQuery.event.handlers.call( this, event, handlers ); // Run delegates first; they may want to stop propagation beneath us i = 0; while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) { event.currentTarget = matched.elem; j = 0; while ( ( handleObj = matched.handlers[ j++ ] ) && !event.isImmediatePropagationStopped() ) { // Triggered event must either 1) have no namespace, or 2) have namespace(s) // a subset or equal to those in the bound event (both can have no namespace). if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) { event.handleObj = handleObj; event.data = handleObj.data; ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle || handleObj.handler ).apply( matched.elem, args ); if ( ret !== undefined ) { if ( ( event.result = ret ) === false ) { event.preventDefault(); event.stopPropagation(); } } } } } // Call the postDispatch hook for the mapped type if ( special.postDispatch ) { special.postDispatch.call( this, event ); } return event.result; }, handlers: function( event, handlers ) { var i, handleObj, sel, matchedHandlers, matchedSelectors, handlerQueue = [], delegateCount = handlers.delegateCount, cur = event.target; // Find delegate handlers if ( delegateCount && // Support: IE <=9 // Black-hole SVG instance trees (trac-13180) cur.nodeType && // Support: Firefox <=42 // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861) // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click // Support: IE 11 only // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343) !( event.type === "click" && event.button >= 1 ) ) { for ( ; cur !== this; cur = cur.parentNode || this ) { // Don't check non-elements (#13208) // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764) if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) { matchedHandlers = []; matchedSelectors = {}; for ( i = 0; i < delegateCount; i++ ) { handleObj = handlers[ i ]; // Don't conflict with Object.prototype properties (#13203) sel = handleObj.selector + " "; if ( matchedSelectors[ sel ] === undefined ) { matchedSelectors[ sel ] = handleObj.needsContext ? jQuery( sel, this ).index( cur ) > -1 : jQuery.find( sel, this, null, [ cur ] ).length; } if ( matchedSelectors[ sel ] ) { matchedHandlers.push( handleObj ); } } if ( matchedHandlers.length ) { handlerQueue.push( { elem: cur, handlers: matchedHandlers } ); } } } } // Add the remaining (directly-bound) handlers cur = this; if ( delegateCount < handlers.length ) { handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } ); } return handlerQueue; }, addProp: function( name, hook ) { Object.defineProperty( jQuery.Event.prototype, name, { enumerable: true, configurable: true, get: jQuery.isFunction( hook ) ? function() { if ( this.originalEvent ) { return hook( this.originalEvent ); } } : function() { if ( this.originalEvent ) { return this.originalEvent[ name ]; } }, set: function( value ) { Object.defineProperty( this, name, { enumerable: true, configurable: true, writable: true, value: value } ); } } ); }, fix: function( originalEvent ) { return originalEvent[ jQuery.expando ] ? originalEvent : new jQuery.Event( originalEvent ); }, special: { load: { // Prevent triggered image.load events from bubbling to window.load noBubble: true }, focus: { // Fire native event if possible so blur/focus sequence is correct trigger: function() { if ( this !== safeActiveElement() && this.focus ) { this.focus(); return false; } }, delegateType: "focusin" }, blur: { trigger: function() { if ( this === safeActiveElement() && this.blur ) { this.blur(); return false; } }, delegateType: "focusout" }, click: { // For checkbox, fire native event so checked state will be right trigger: function() { if ( this.type === "checkbox" && this.click && nodeName( this, "input" ) ) { this.click(); return false; } }, // For cross-browser consistency, don't fire native .click() on links _default: function( event ) { return nodeName( event.target, "a" ); } }, beforeunload: { postDispatch: function( event ) { // Support: Firefox 20+ // Firefox doesn't alert if the returnValue field is not set. if ( event.result !== undefined && event.originalEvent ) { event.originalEvent.returnValue = event.result; } } } } }; jQuery.removeEvent = function( elem, type, handle ) { // This "if" is needed for plain objects if ( elem.removeEventListener ) { elem.removeEventListener( type, handle ); } }; jQuery.Event = function( src, props ) { // Allow instantiation without the 'new' keyword if ( !( this instanceof jQuery.Event ) ) { return new jQuery.Event( src, props ); } // Event object if ( src && src.type ) { this.originalEvent = src; this.type = src.type; // Events bubbling up the document may have been marked as prevented // by a handler lower down the tree; reflect the correct value. this.isDefaultPrevented = src.defaultPrevented || src.defaultPrevented === undefined && // Support: Android <=2.3 only src.returnValue === false ? returnTrue : returnFalse; // Create target properties // Support: Safari <=6 - 7 only // Target should not be a text node (#504, #13143) this.target = ( src.target && src.target.nodeType === 3 ) ? src.target.parentNode : src.target; this.currentTarget = src.currentTarget; this.relatedTarget = src.relatedTarget; // Event type } else { this.type = src; } // Put explicitly provided properties onto the event object if ( props ) { jQuery.extend( this, props ); } // Create a timestamp if incoming event doesn't have one this.timeStamp = src && src.timeStamp || jQuery.now(); // Mark it as fixed this[ jQuery.expando ] = true; }; // jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding // https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html jQuery.Event.prototype = { constructor: jQuery.Event, isDefaultPrevented: returnFalse, isPropagationStopped: returnFalse, isImmediatePropagationStopped: returnFalse, isSimulated: false, preventDefault: function() { var e = this.originalEvent; this.isDefaultPrevented = returnTrue; if ( e && !this.isSimulated ) { e.preventDefault(); } }, stopPropagation: function() { var e = this.originalEvent; this.isPropagationStopped = returnTrue; if ( e && !this.isSimulated ) { e.stopPropagation(); } }, stopImmediatePropagation: function() { var e = this.originalEvent; this.isImmediatePropagationStopped = returnTrue; if ( e && !this.isSimulated ) { e.stopImmediatePropagation(); } this.stopPropagation(); } }; // Includes all common event props including KeyEvent and MouseEvent specific props jQuery.each( { altKey: true, bubbles: true, cancelable: true, changedTouches: true, ctrlKey: true, detail: true, eventPhase: true, metaKey: true, pageX: true, pageY: true, shiftKey: true, view: true, "char": true, charCode: true, key: true, keyCode: true, button: true, buttons: true, clientX: true, clientY: true, offsetX: true, offsetY: true, pointerId: true, pointerType: true, screenX: true, screenY: true, targetTouches: true, toElement: true, touches: true, which: function( event ) { var button = event.button; // Add which for key events if ( event.which == null && rkeyEvent.test( event.type ) ) { return event.charCode != null ? event.charCode : event.keyCode; } // Add which for click: 1 === left; 2 === middle; 3 === right if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) { if ( button & 1 ) { return 1; } if ( button & 2 ) { return 3; } if ( button & 4 ) { return 2; } return 0; } return event.which; } }, jQuery.event.addProp ); // Create mouseenter/leave events using mouseover/out and event-time checks // so that event delegation works in jQuery. // Do the same for pointerenter/pointerleave and pointerover/pointerout // // Support: Safari 7 only // Safari sends mouseenter too often; see: // https://bugs.chromium.org/p/chromium/issues/detail?id=470258 // for the description of the bug (it existed in older Chrome versions as well). jQuery.each( { mouseenter: "mouseover", mouseleave: "mouseout", pointerenter: "pointerover", pointerleave: "pointerout" }, function( orig, fix ) { jQuery.event.special[ orig ] = { delegateType: fix, bindType: fix, handle: function( event ) { var ret, target = this, related = event.relatedTarget, handleObj = event.handleObj; // For mouseenter/leave call the handler if related is outside the target. // NB: No relatedTarget if the mouse left/entered the browser window if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) { event.type = handleObj.origType; ret = handleObj.handler.apply( this, arguments ); event.type = fix; } return ret; } }; } ); jQuery.fn.extend( { on: function( types, selector, data, fn ) { return on( this, types, selector, data, fn ); }, one: function( types, selector, data, fn ) { return on( this, types, selector, data, fn, 1 ); }, off: function( types, selector, fn ) { var handleObj, type; if ( types && types.preventDefault && types.handleObj ) { // ( event ) dispatched jQuery.Event handleObj = types.handleObj; jQuery( types.delegateTarget ).off( handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType, handleObj.selector, handleObj.handler ); return this; } if ( typeof types === "object" ) { // ( types-object [, selector] ) for ( type in types ) { this.off( type, selector, types[ type ] ); } return this; } if ( selector === false || typeof selector === "function" ) { // ( types [, fn] ) fn = selector; selector = undefined; } if ( fn === false ) { fn = returnFalse; } return this.each( function() { jQuery.event.remove( this, types, fn, selector ); } ); } } ); var /* eslint-disable max-len */ // See https://github.com/eslint/eslint/issues/3229 rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi, /* eslint-enable */ // Support: IE <=10 - 11, Edge 12 - 13 // In IE/Edge using regex groups here causes severe slowdowns. // See https://connect.microsoft.com/IE/feedback/details/1736512/ rnoInnerhtml = /\s*$/g; // Prefer a tbody over its parent table for containing new rows function manipulationTarget( elem, content ) { if ( nodeName( elem, "table" ) && nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) { return jQuery( ">tbody", elem )[ 0 ] || elem; } return elem; } // Replace/restore the type attribute of script elements for safe DOM manipulation function disableScript( elem ) { elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type; return elem; } function restoreScript( elem ) { var match = rscriptTypeMasked.exec( elem.type ); if ( match ) { elem.type = match[ 1 ]; } else { elem.removeAttribute( "type" ); } return elem; } function cloneCopyEvent( src, dest ) { var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events; if ( dest.nodeType !== 1 ) { return; } // 1. Copy private data: events, handlers, etc. if ( dataPriv.hasData( src ) ) { pdataOld = dataPriv.access( src ); pdataCur = dataPriv.set( dest, pdataOld ); events = pdataOld.events; if ( events ) { delete pdataCur.handle; pdataCur.events = {}; for ( type in events ) { for ( i = 0, l = events[ type ].length; i < l; i++ ) { jQuery.event.add( dest, type, events[ type ][ i ] ); } } } } // 2. Copy user data if ( dataUser.hasData( src ) ) { udataOld = dataUser.access( src ); udataCur = jQuery.extend( {}, udataOld ); dataUser.set( dest, udataCur ); } } // Fix IE bugs, see support tests function fixInput( src, dest ) { var nodeName = dest.nodeName.toLowerCase(); // Fails to persist the checked state of a cloned checkbox or radio button. if ( nodeName === "input" && rcheckableType.test( src.type ) ) { dest.checked = src.checked; // Fails to return the selected option to the default selected state when cloning options } else if ( nodeName === "input" || nodeName === "textarea" ) { dest.defaultValue = src.defaultValue; } } function domManip( collection, args, callback, ignored ) { // Flatten any nested arrays args = concat.apply( [], args ); var fragment, first, scripts, hasScripts, node, doc, i = 0, l = collection.length, iNoClone = l - 1, value = args[ 0 ], isFunction = jQuery.isFunction( value ); // We can't cloneNode fragments that contain checked, in WebKit if ( isFunction || ( l > 1 && typeof value === "string" && !support.checkClone && rchecked.test( value ) ) ) { return collection.each( function( index ) { var self = collection.eq( index ); if ( isFunction ) { args[ 0 ] = value.call( this, index, self.html() ); } domManip( self, args, callback, ignored ); } ); } if ( l ) { fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored ); first = fragment.firstChild; if ( fragment.childNodes.length === 1 ) { fragment = first; } // Require either new content or an interest in ignored elements to invoke the callback if ( first || ignored ) { scripts = jQuery.map( getAll( fragment, "script" ), disableScript ); hasScripts = scripts.length; // Use the original fragment for the last item // instead of the first because it can end up // being emptied incorrectly in certain situations (#8070). for ( ; i < l; i++ ) { node = fragment; if ( i !== iNoClone ) { node = jQuery.clone( node, true, true ); // Keep references to cloned scripts for later restoration if ( hasScripts ) { // Support: Android <=4.0 only, PhantomJS 1 only // push.apply(_, arraylike) throws on ancient WebKit jQuery.merge( scripts, getAll( node, "script" ) ); } } callback.call( collection[ i ], node, i ); } if ( hasScripts ) { doc = scripts[ scripts.length - 1 ].ownerDocument; // Reenable scripts jQuery.map( scripts, restoreScript ); // Evaluate executable scripts on first document insertion for ( i = 0; i < hasScripts; i++ ) { node = scripts[ i ]; if ( rscriptType.test( node.type || "" ) && !dataPriv.access( node, "globalEval" ) && jQuery.contains( doc, node ) ) { if ( node.src ) { // Optional AJAX dependency, but won't run scripts if not present if ( jQuery._evalUrl ) { jQuery._evalUrl( node.src ); } } else { DOMEval( node.textContent.replace( rcleanScript, "" ), doc ); } } } } } } return collection; } function remove( elem, selector, keepData ) { var node, nodes = selector ? jQuery.filter( selector, elem ) : elem, i = 0; for ( ; ( node = nodes[ i ] ) != null; i++ ) { if ( !keepData && node.nodeType === 1 ) { jQuery.cleanData( getAll( node ) ); } if ( node.parentNode ) { if ( keepData && jQuery.contains( node.ownerDocument, node ) ) { setGlobalEval( getAll( node, "script" ) ); } node.parentNode.removeChild( node ); } } return elem; } jQuery.extend( { htmlPrefilter: function( html ) { return html.replace( rxhtmlTag, "<$1>" ); }, clone: function( elem, dataAndEvents, deepDataAndEvents ) { var i, l, srcElements, destElements, clone = elem.cloneNode( true ), inPage = jQuery.contains( elem.ownerDocument, elem ); // Fix IE cloning issues if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) && !jQuery.isXMLDoc( elem ) ) { // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2 destElements = getAll( clone ); srcElements = getAll( elem ); for ( i = 0, l = srcElements.length; i < l; i++ ) { fixInput( srcElements[ i ], destElements[ i ] ); } } // Copy the events from the original to the clone if ( dataAndEvents ) { if ( deepDataAndEvents ) { srcElements = srcElements || getAll( elem ); destElements = destElements || getAll( clone ); for ( i = 0, l = srcElements.length; i < l; i++ ) { cloneCopyEvent( srcElements[ i ], destElements[ i ] ); } } else { cloneCopyEvent( elem, clone ); } } // Preserve script evaluation history destElements = getAll( clone, "script" ); if ( destElements.length > 0 ) { setGlobalEval( destElements, !inPage && getAll( elem, "script" ) ); } // Return the cloned set return clone; }, cleanData: function( elems ) { var data, elem, type, special = jQuery.event.special, i = 0; for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) { if ( acceptData( elem ) ) { if ( ( data = elem[ dataPriv.expando ] ) ) { if ( data.events ) { for ( type in data.events ) { if ( special[ type ] ) { jQuery.event.remove( elem, type ); // This is a shortcut to avoid jQuery.event.remove's overhead } else { jQuery.removeEvent( elem, type, data.handle ); } } } // Support: Chrome <=35 - 45+ // Assign undefined instead of using delete, see Data#remove elem[ dataPriv.expando ] = undefined; } if ( elem[ dataUser.expando ] ) { // Support: Chrome <=35 - 45+ // Assign undefined instead of using delete, see Data#remove elem[ dataUser.expando ] = undefined; } } } } } ); jQuery.fn.extend( { detach: function( selector ) { return remove( this, selector, true ); }, remove: function( selector ) { return remove( this, selector ); }, text: function( value ) { return access( this, function( value ) { return value === undefined ? jQuery.text( this ) : this.empty().each( function() { if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { this.textContent = value; } } ); }, null, value, arguments.length ); }, append: function() { return domManip( this, arguments, function( elem ) { if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { var target = manipulationTarget( this, elem ); target.appendChild( elem ); } } ); }, prepend: function() { return domManip( this, arguments, function( elem ) { if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { var target = manipulationTarget( this, elem ); target.insertBefore( elem, target.firstChild ); } } ); }, before: function() { return domManip( this, arguments, function( elem ) { if ( this.parentNode ) { this.parentNode.insertBefore( elem, this ); } } ); }, after: function() { return domManip( this, arguments, function( elem ) { if ( this.parentNode ) { this.parentNode.insertBefore( elem, this.nextSibling ); } } ); }, empty: function() { var elem, i = 0; for ( ; ( elem = this[ i ] ) != null; i++ ) { if ( elem.nodeType === 1 ) { // Prevent memory leaks jQuery.cleanData( getAll( elem, false ) ); // Remove any remaining nodes elem.textContent = ""; } } return this; }, clone: function( dataAndEvents, deepDataAndEvents ) { dataAndEvents = dataAndEvents == null ? false : dataAndEvents; deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents; return this.map( function() { return jQuery.clone( this, dataAndEvents, deepDataAndEvents ); } ); }, html: function( value ) { return access( this, function( value ) { var elem = this[ 0 ] || {}, i = 0, l = this.length; if ( value === undefined && elem.nodeType === 1 ) { return elem.innerHTML; } // See if we can take a shortcut and just use innerHTML if ( typeof value === "string" && !rnoInnerhtml.test( value ) && !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) { value = jQuery.htmlPrefilter( value ); try { for ( ; i < l; i++ ) { elem = this[ i ] || {}; // Remove element nodes and prevent memory leaks if ( elem.nodeType === 1 ) { jQuery.cleanData( getAll( elem, false ) ); elem.innerHTML = value; } } elem = 0; // If using innerHTML throws an exception, use the fallback method } catch ( e ) {} } if ( elem ) { this.empty().append( value ); } }, null, value, arguments.length ); }, replaceWith: function() { var ignored = []; // Make the changes, replacing each non-ignored context element with the new content return domManip( this, arguments, function( elem ) { var parent = this.parentNode; if ( jQuery.inArray( this, ignored ) < 0 ) { jQuery.cleanData( getAll( this ) ); if ( parent ) { parent.replaceChild( elem, this ); } } // Force callback invocation }, ignored ); } } ); jQuery.each( { appendTo: "append", prependTo: "prepend", insertBefore: "before", insertAfter: "after", replaceAll: "replaceWith" }, function( name, original ) { jQuery.fn[ name ] = function( selector ) { var elems, ret = [], insert = jQuery( selector ), last = insert.length - 1, i = 0; for ( ; i <= last; i++ ) { elems = i === last ? this : this.clone( true ); jQuery( insert[ i ] )[ original ]( elems ); // Support: Android <=4.0 only, PhantomJS 1 only // .get() because push.apply(_, arraylike) throws on ancient WebKit push.apply( ret, elems.get() ); } return this.pushStack( ret ); }; } ); var rmargin = ( /^margin/ ); var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" ); var getStyles = function( elem ) { // Support: IE <=11 only, Firefox <=30 (#15098, #14150) // IE throws on elements created in popups // FF meanwhile throws on frame elements through "defaultView.getComputedStyle" var view = elem.ownerDocument.defaultView; if ( !view || !view.opener ) { view = window; } return view.getComputedStyle( elem ); }; ( function() { // Executing both pixelPosition & boxSizingReliable tests require only one layout // so they're executed at the same time to save the second computation. function computeStyleTests() { // This is a singleton, we need to execute it only once if ( !div ) { return; } div.style.cssText = "box-sizing:border-box;" + "position:relative;display:block;" + "margin:auto;border:1px;padding:1px;" + "top:1%;width:50%"; div.innerHTML = ""; documentElement.appendChild( container ); var divStyle = window.getComputedStyle( div ); pixelPositionVal = divStyle.top !== "1%"; // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44 reliableMarginLeftVal = divStyle.marginLeft === "2px"; boxSizingReliableVal = divStyle.width === "4px"; // Support: Android 4.0 - 4.3 only // Some styles come back with percentage values, even though they shouldn't div.style.marginRight = "50%"; pixelMarginRightVal = divStyle.marginRight === "4px"; documentElement.removeChild( container ); // Nullify the div so it wouldn't be stored in the memory and // it will also be a sign that checks already performed div = null; } var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal, container = document.createElement( "div" ), div = document.createElement( "div" ); // Finish early in limited (non-browser) environments if ( !div.style ) { return; } // Support: IE <=9 - 11 only // Style of cloned element affects source element cloned (#8908) div.style.backgroundClip = "content-box"; div.cloneNode( true ).style.backgroundClip = ""; support.clearCloneStyle = div.style.backgroundClip === "content-box"; container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" + "padding:0;margin-top:1px;position:absolute"; container.appendChild( div ); jQuery.extend( support, { pixelPosition: function() { computeStyleTests(); return pixelPositionVal; }, boxSizingReliable: function() { computeStyleTests(); return boxSizingReliableVal; }, pixelMarginRight: function() { computeStyleTests(); return pixelMarginRightVal; }, reliableMarginLeft: function() { computeStyleTests(); return reliableMarginLeftVal; } } ); } )(); function curCSS( elem, name, computed ) { var width, minWidth, maxWidth, ret, // Support: Firefox 51+ // Retrieving style before computed somehow // fixes an issue with getting wrong values // on detached elements style = elem.style; computed = computed || getStyles( elem ); // getPropertyValue is needed for: // .css('filter') (IE 9 only, #12537) // .css('--customProperty) (#3144) if ( computed ) { ret = computed.getPropertyValue( name ) || computed[ name ]; if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) { ret = jQuery.style( elem, name ); } // A tribute to the "awesome hack by Dean Edwards" // Android Browser returns percentage for some values, // but width seems to be reliably pixels. // This is against the CSSOM draft spec: // https://drafts.csswg.org/cssom/#resolved-values if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) { // Remember the original values width = style.width; minWidth = style.minWidth; maxWidth = style.maxWidth; // Put in the new values to get a computed value out style.minWidth = style.maxWidth = style.width = ret; ret = computed.width; // Revert the changed values style.width = width; style.minWidth = minWidth; style.maxWidth = maxWidth; } } return ret !== undefined ? // Support: IE <=9 - 11 only // IE returns zIndex value as an integer. ret + "" : ret; } function addGetHookIf( conditionFn, hookFn ) { // Define the hook, we'll check on the first run if it's really needed. return { get: function() { if ( conditionFn() ) { // Hook not needed (or it's not possible to use it due // to missing dependency), remove it. delete this.get; return; } // Hook needed; redefine it so that the support test is not executed again. return ( this.get = hookFn ).apply( this, arguments ); } }; } var // Swappable if display is none or starts with table // except "table", "table-cell", or "table-caption" // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display rdisplayswap = /^(none|table(?!-c[ea]).+)/, rcustomProp = /^--/, cssShow = { position: "absolute", visibility: "hidden", display: "block" }, cssNormalTransform = { letterSpacing: "0", fontWeight: "400" }, cssPrefixes = [ "Webkit", "Moz", "ms" ], emptyStyle = document.createElement( "div" ).style; // Return a css property mapped to a potentially vendor prefixed property function vendorPropName( name ) { // Shortcut for names that are not vendor prefixed if ( name in emptyStyle ) { return name; } // Check for vendor prefixed names var capName = name[ 0 ].toUpperCase() + name.slice( 1 ), i = cssPrefixes.length; while ( i-- ) { name = cssPrefixes[ i ] + capName; if ( name in emptyStyle ) { return name; } } } // Return a property mapped along what jQuery.cssProps suggests or to // a vendor prefixed property. function finalPropName( name ) { var ret = jQuery.cssProps[ name ]; if ( !ret ) { ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name; } return ret; } function setPositiveNumber( elem, value, subtract ) { // Any relative (+/-) values have already been // normalized at this point var matches = rcssNum.exec( value ); return matches ? // Guard against undefined "subtract", e.g., when used as in cssHooks Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) : value; } function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) { var i, val = 0; // If we already have the right measurement, avoid augmentation if ( extra === ( isBorderBox ? "border" : "content" ) ) { i = 4; // Otherwise initialize for horizontal or vertical properties } else { i = name === "width" ? 1 : 0; } for ( ; i < 4; i += 2 ) { // Both box models exclude margin, so add it if we want it if ( extra === "margin" ) { val += jQuery.css( elem, extra + cssExpand[ i ], true, styles ); } if ( isBorderBox ) { // border-box includes padding, so remove it if we want content if ( extra === "content" ) { val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); } // At this point, extra isn't border nor margin, so remove border if ( extra !== "margin" ) { val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); } } else { // At this point, extra isn't content, so add padding val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); // At this point, extra isn't content nor padding, so add border if ( extra !== "padding" ) { val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); } } } return val; } function getWidthOrHeight( elem, name, extra ) { // Start with computed style var valueIsBorderBox, styles = getStyles( elem ), val = curCSS( elem, name, styles ), isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box"; // Computed unit is not pixels. Stop here and return. if ( rnumnonpx.test( val ) ) { return val; } // Check for style in case a browser which returns unreliable values // for getComputedStyle silently falls back to the reliable elem.style valueIsBorderBox = isBorderBox && ( support.boxSizingReliable() || val === elem.style[ name ] ); // Fall back to offsetWidth/Height when value is "auto" // This happens for inline elements with no explicit setting (gh-3571) if ( val === "auto" ) { val = elem[ "offset" + name[ 0 ].toUpperCase() + name.slice( 1 ) ]; } // Normalize "", auto, and prepare for extra val = parseFloat( val ) || 0; // Use the active box-sizing model to add/subtract irrelevant styles return ( val + augmentWidthOrHeight( elem, name, extra || ( isBorderBox ? "border" : "content" ), valueIsBorderBox, styles ) ) + "px"; } jQuery.extend( { // Add in style property hooks for overriding the default // behavior of getting and setting a style property cssHooks: { opacity: { get: function( elem, computed ) { if ( computed ) { // We should always get a number back from opacity var ret = curCSS( elem, "opacity" ); return ret === "" ? "1" : ret; } } } }, // Don't automatically add "px" to these possibly-unitless properties cssNumber: { "animationIterationCount": true, "columnCount": true, "fillOpacity": true, "flexGrow": true, "flexShrink": true, "fontWeight": true, "lineHeight": true, "opacity": true, "order": true, "orphans": true, "widows": true, "zIndex": true, "zoom": true }, // Add in properties whose names you wish to fix before // setting or getting the value cssProps: { "float": "cssFloat" }, // Get and set the style property on a DOM Node style: function( elem, name, value, extra ) { // Don't set styles on text and comment nodes if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) { return; } // Make sure that we're working with the right name var ret, type, hooks, origName = jQuery.camelCase( name ), isCustomProp = rcustomProp.test( name ), style = elem.style; // Make sure that we're working with the right name. We don't // want to query the value if it is a CSS custom property // since they are user-defined. if ( !isCustomProp ) { name = finalPropName( origName ); } // Gets hook for the prefixed version, then unprefixed version hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ]; // Check if we're setting a value if ( value !== undefined ) { type = typeof value; // Convert "+=" or "-=" to relative numbers (#7345) if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) { value = adjustCSS( elem, name, ret ); // Fixes bug #9237 type = "number"; } // Make sure that null and NaN values aren't set (#7116) if ( value == null || value !== value ) { return; } // If a number was passed in, add the unit (except for certain CSS properties) if ( type === "number" ) { value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" ); } // background-* props affect original clone's values if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) { style[ name ] = "inherit"; } // If a hook was provided, use that value, otherwise just set the specified value if ( !hooks || !( "set" in hooks ) || ( value = hooks.set( elem, value, extra ) ) !== undefined ) { if ( isCustomProp ) { style.setProperty( name, value ); } else { style[ name ] = value; } } } else { // If a hook was provided get the non-computed value from there if ( hooks && "get" in hooks && ( ret = hooks.get( elem, false, extra ) ) !== undefined ) { return ret; } // Otherwise just get the value from the style object return style[ name ]; } }, css: function( elem, name, extra, styles ) { var val, num, hooks, origName = jQuery.camelCase( name ), isCustomProp = rcustomProp.test( name ); // Make sure that we're working with the right name. We don't // want to modify the value if it is a CSS custom property // since they are user-defined. if ( !isCustomProp ) { name = finalPropName( origName ); } // Try prefixed name followed by the unprefixed name hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ]; // If a hook was provided get the computed value from there if ( hooks && "get" in hooks ) { val = hooks.get( elem, true, extra ); } // Otherwise, if a way to get the computed value exists, use that if ( val === undefined ) { val = curCSS( elem, name, styles ); } // Convert "normal" to computed value if ( val === "normal" && name in cssNormalTransform ) { val = cssNormalTransform[ name ]; } // Make numeric if forced or a qualifier was provided and val looks numeric if ( extra === "" || extra ) { num = parseFloat( val ); return extra === true || isFinite( num ) ? num || 0 : val; } return val; } } ); jQuery.each( [ "height", "width" ], function( i, name ) { jQuery.cssHooks[ name ] = { get: function( elem, computed, extra ) { if ( computed ) { // Certain elements can have dimension info if we invisibly show them // but it must have a current display style that would benefit return rdisplayswap.test( jQuery.css( elem, "display" ) ) && // Support: Safari 8+ // Table columns in Safari have non-zero offsetWidth & zero // getBoundingClientRect().width unless display is changed. // Support: IE <=11 only // Running getBoundingClientRect on a disconnected node // in IE throws an error. ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ? swap( elem, cssShow, function() { return getWidthOrHeight( elem, name, extra ); } ) : getWidthOrHeight( elem, name, extra ); } }, set: function( elem, value, extra ) { var matches, styles = extra && getStyles( elem ), subtract = extra && augmentWidthOrHeight( elem, name, extra, jQuery.css( elem, "boxSizing", false, styles ) === "border-box", styles ); // Convert to pixels if value adjustment is needed if ( subtract && ( matches = rcssNum.exec( value ) ) && ( matches[ 3 ] || "px" ) !== "px" ) { elem.style[ name ] = value; value = jQuery.css( elem, name ); } return setPositiveNumber( elem, value, subtract ); } }; } ); jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft, function( elem, computed ) { if ( computed ) { return ( parseFloat( curCSS( elem, "marginLeft" ) ) || elem.getBoundingClientRect().left - swap( elem, { marginLeft: 0 }, function() { return elem.getBoundingClientRect().left; } ) ) + "px"; } } ); // These hooks are used by animate to expand properties jQuery.each( { margin: "", padding: "", border: "Width" }, function( prefix, suffix ) { jQuery.cssHooks[ prefix + suffix ] = { expand: function( value ) { var i = 0, expanded = {}, // Assumes a single number if not a string parts = typeof value === "string" ? value.split( " " ) : [ value ]; for ( ; i < 4; i++ ) { expanded[ prefix + cssExpand[ i ] + suffix ] = parts[ i ] || parts[ i - 2 ] || parts[ 0 ]; } return expanded; } }; if ( !rmargin.test( prefix ) ) { jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber; } } ); jQuery.fn.extend( { css: function( name, value ) { return access( this, function( elem, name, value ) { var styles, len, map = {}, i = 0; if ( Array.isArray( name ) ) { styles = getStyles( elem ); len = name.length; for ( ; i < len; i++ ) { map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles ); } return map; } return value !== undefined ? jQuery.style( elem, name, value ) : jQuery.css( elem, name ); }, name, value, arguments.length > 1 ); } } ); function Tween( elem, options, prop, end, easing ) { return new Tween.prototype.init( elem, options, prop, end, easing ); } jQuery.Tween = Tween; Tween.prototype = { constructor: Tween, init: function( elem, options, prop, end, easing, unit ) { this.elem = elem; this.prop = prop; this.easing = easing || jQuery.easing._default; this.options = options; this.start = this.now = this.cur(); this.end = end; this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" ); }, cur: function() { var hooks = Tween.propHooks[ this.prop ]; return hooks && hooks.get ? hooks.get( this ) : Tween.propHooks._default.get( this ); }, run: function( percent ) { var eased, hooks = Tween.propHooks[ this.prop ]; if ( this.options.duration ) { this.pos = eased = jQuery.easing[ this.easing ]( percent, this.options.duration * percent, 0, 1, this.options.duration ); } else { this.pos = eased = percent; } this.now = ( this.end - this.start ) * eased + this.start; if ( this.options.step ) { this.options.step.call( this.elem, this.now, this ); } if ( hooks && hooks.set ) { hooks.set( this ); } else { Tween.propHooks._default.set( this ); } return this; } }; Tween.prototype.init.prototype = Tween.prototype; Tween.propHooks = { _default: { get: function( tween ) { var result; // Use a property on the element directly when it is not a DOM element, // or when there is no matching style property that exists. if ( tween.elem.nodeType !== 1 || tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) { return tween.elem[ tween.prop ]; } // Passing an empty string as a 3rd parameter to .css will automatically // attempt a parseFloat and fallback to a string if the parse fails. // Simple values such as "10px" are parsed to Float; // complex values such as "rotate(1rad)" are returned as-is. result = jQuery.css( tween.elem, tween.prop, "" ); // Empty strings, null, undefined and "auto" are converted to 0. return !result || result === "auto" ? 0 : result; }, set: function( tween ) { // Use step hook for back compat. // Use cssHook if its there. // Use .style if available and use plain properties where available. if ( jQuery.fx.step[ tween.prop ] ) { jQuery.fx.step[ tween.prop ]( tween ); } else if ( tween.elem.nodeType === 1 && ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || jQuery.cssHooks[ tween.prop ] ) ) { jQuery.style( tween.elem, tween.prop, tween.now + tween.unit ); } else { tween.elem[ tween.prop ] = tween.now; } } } }; // Support: IE <=9 only // Panic based approach to setting things on disconnected nodes Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = { set: function( tween ) { if ( tween.elem.nodeType && tween.elem.parentNode ) { tween.elem[ tween.prop ] = tween.now; } } }; jQuery.easing = { linear: function( p ) { return p; }, swing: function( p ) { return 0.5 - Math.cos( p * Math.PI ) / 2; }, _default: "swing" }; jQuery.fx = Tween.prototype.init; // Back compat <1.8 extension point jQuery.fx.step = {}; var fxNow, inProgress, rfxtypes = /^(?:toggle|show|hide)$/, rrun = /queueHooks$/; function schedule() { if ( inProgress ) { if ( document.hidden === false && window.requestAnimationFrame ) { window.requestAnimationFrame( schedule ); } else { window.setTimeout( schedule, jQuery.fx.interval ); } jQuery.fx.tick(); } } // Animations created synchronously will run synchronously function createFxNow() { window.setTimeout( function() { fxNow = undefined; } ); return ( fxNow = jQuery.now() ); } // Generate parameters to create a standard animation function genFx( type, includeWidth ) { var which, i = 0, attrs = { height: type }; // If we include width, step value is 1 to do all cssExpand values, // otherwise step value is 2 to skip over Left and Right includeWidth = includeWidth ? 1 : 0; for ( ; i < 4; i += 2 - includeWidth ) { which = cssExpand[ i ]; attrs[ "margin" + which ] = attrs[ "padding" + which ] = type; } if ( includeWidth ) { attrs.opacity = attrs.width = type; } return attrs; } function createTween( value, prop, animation ) { var tween, collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ), index = 0, length = collection.length; for ( ; index < length; index++ ) { if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) { // We're done with this property return tween; } } } function defaultPrefilter( elem, props, opts ) { var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display, isBox = "width" in props || "height" in props, anim = this, orig = {}, style = elem.style, hidden = elem.nodeType && isHiddenWithinTree( elem ), dataShow = dataPriv.get( elem, "fxshow" ); // Queue-skipping animations hijack the fx hooks if ( !opts.queue ) { hooks = jQuery._queueHooks( elem, "fx" ); if ( hooks.unqueued == null ) { hooks.unqueued = 0; oldfire = hooks.empty.fire; hooks.empty.fire = function() { if ( !hooks.unqueued ) { oldfire(); } }; } hooks.unqueued++; anim.always( function() { // Ensure the complete handler is called before this completes anim.always( function() { hooks.unqueued--; if ( !jQuery.queue( elem, "fx" ).length ) { hooks.empty.fire(); } } ); } ); } // Detect show/hide animations for ( prop in props ) { value = props[ prop ]; if ( rfxtypes.test( value ) ) { delete props[ prop ]; toggle = toggle || value === "toggle"; if ( value === ( hidden ? "hide" : "show" ) ) { // Pretend to be hidden if this is a "show" and // there is still data from a stopped show/hide if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) { hidden = true; // Ignore all other no-op show/hide data } else { continue; } } orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop ); } } // Bail out if this is a no-op like .hide().hide() propTween = !jQuery.isEmptyObject( props ); if ( !propTween && jQuery.isEmptyObject( orig ) ) { return; } // Restrict "overflow" and "display" styles during box animations if ( isBox && elem.nodeType === 1 ) { // Support: IE <=9 - 11, Edge 12 - 13 // Record all 3 overflow attributes because IE does not infer the shorthand // from identically-valued overflowX and overflowY opts.overflow = [ style.overflow, style.overflowX, style.overflowY ]; // Identify a display type, preferring old show/hide data over the CSS cascade restoreDisplay = dataShow && dataShow.display; if ( restoreDisplay == null ) { restoreDisplay = dataPriv.get( elem, "display" ); } display = jQuery.css( elem, "display" ); if ( display === "none" ) { if ( restoreDisplay ) { display = restoreDisplay; } else { // Get nonempty value(s) by temporarily forcing visibility showHide( [ elem ], true ); restoreDisplay = elem.style.display || restoreDisplay; display = jQuery.css( elem, "display" ); showHide( [ elem ] ); } } // Animate inline elements as inline-block if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) { if ( jQuery.css( elem, "float" ) === "none" ) { // Restore the original display value at the end of pure show/hide animations if ( !propTween ) { anim.done( function() { style.display = restoreDisplay; } ); if ( restoreDisplay == null ) { display = style.display; restoreDisplay = display === "none" ? "" : display; } } style.display = "inline-block"; } } } if ( opts.overflow ) { style.overflow = "hidden"; anim.always( function() { style.overflow = opts.overflow[ 0 ]; style.overflowX = opts.overflow[ 1 ]; style.overflowY = opts.overflow[ 2 ]; } ); } // Implement show/hide animations propTween = false; for ( prop in orig ) { // General show/hide setup for this element animation if ( !propTween ) { if ( dataShow ) { if ( "hidden" in dataShow ) { hidden = dataShow.hidden; } } else { dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } ); } // Store hidden/visible for toggle so `.stop().toggle()` "reverses" if ( toggle ) { dataShow.hidden = !hidden; } // Show elements before animating them if ( hidden ) { showHide( [ elem ], true ); } /* eslint-disable no-loop-func */ anim.done( function() { /* eslint-enable no-loop-func */ // The final step of a "hide" animation is actually hiding the element if ( !hidden ) { showHide( [ elem ] ); } dataPriv.remove( elem, "fxshow" ); for ( prop in orig ) { jQuery.style( elem, prop, orig[ prop ] ); } } ); } // Per-property setup propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim ); if ( !( prop in dataShow ) ) { dataShow[ prop ] = propTween.start; if ( hidden ) { propTween.end = propTween.start; propTween.start = 0; } } } } function propFilter( props, specialEasing ) { var index, name, easing, value, hooks; // camelCase, specialEasing and expand cssHook pass for ( index in props ) { name = jQuery.camelCase( index ); easing = specialEasing[ name ]; value = props[ index ]; if ( Array.isArray( value ) ) { easing = value[ 1 ]; value = props[ index ] = value[ 0 ]; } if ( index !== name ) { props[ name ] = value; delete props[ index ]; } hooks = jQuery.cssHooks[ name ]; if ( hooks && "expand" in hooks ) { value = hooks.expand( value ); delete props[ name ]; // Not quite $.extend, this won't overwrite existing keys. // Reusing 'index' because we have the correct "name" for ( index in value ) { if ( !( index in props ) ) { props[ index ] = value[ index ]; specialEasing[ index ] = easing; } } } else { specialEasing[ name ] = easing; } } } function Animation( elem, properties, options ) { var result, stopped, index = 0, length = Animation.prefilters.length, deferred = jQuery.Deferred().always( function() { // Don't match elem in the :animated selector delete tick.elem; } ), tick = function() { if ( stopped ) { return false; } var currentTime = fxNow || createFxNow(), remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ), // Support: Android 2.3 only // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497) temp = remaining / animation.duration || 0, percent = 1 - temp, index = 0, length = animation.tweens.length; for ( ; index < length; index++ ) { animation.tweens[ index ].run( percent ); } deferred.notifyWith( elem, [ animation, percent, remaining ] ); // If there's more to do, yield if ( percent < 1 && length ) { return remaining; } // If this was an empty animation, synthesize a final progress notification if ( !length ) { deferred.notifyWith( elem, [ animation, 1, 0 ] ); } // Resolve the animation and report its conclusion deferred.resolveWith( elem, [ animation ] ); return false; }, animation = deferred.promise( { elem: elem, props: jQuery.extend( {}, properties ), opts: jQuery.extend( true, { specialEasing: {}, easing: jQuery.easing._default }, options ), originalProperties: properties, originalOptions: options, startTime: fxNow || createFxNow(), duration: options.duration, tweens: [], createTween: function( prop, end ) { var tween = jQuery.Tween( elem, animation.opts, prop, end, animation.opts.specialEasing[ prop ] || animation.opts.easing ); animation.tweens.push( tween ); return tween; }, stop: function( gotoEnd ) { var index = 0, // If we are going to the end, we want to run all the tweens // otherwise we skip this part length = gotoEnd ? animation.tweens.length : 0; if ( stopped ) { return this; } stopped = true; for ( ; index < length; index++ ) { animation.tweens[ index ].run( 1 ); } // Resolve when we played the last frame; otherwise, reject if ( gotoEnd ) { deferred.notifyWith( elem, [ animation, 1, 0 ] ); deferred.resolveWith( elem, [ animation, gotoEnd ] ); } else { deferred.rejectWith( elem, [ animation, gotoEnd ] ); } return this; } } ), props = animation.props; propFilter( props, animation.opts.specialEasing ); for ( ; index < length; index++ ) { result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts ); if ( result ) { if ( jQuery.isFunction( result.stop ) ) { jQuery._queueHooks( animation.elem, animation.opts.queue ).stop = jQuery.proxy( result.stop, result ); } return result; } } jQuery.map( props, createTween, animation ); if ( jQuery.isFunction( animation.opts.start ) ) { animation.opts.start.call( elem, animation ); } // Attach callbacks from options animation .progress( animation.opts.progress ) .done( animation.opts.done, animation.opts.complete ) .fail( animation.opts.fail ) .always( animation.opts.always ); jQuery.fx.timer( jQuery.extend( tick, { elem: elem, anim: animation, queue: animation.opts.queue } ) ); return animation; } jQuery.Animation = jQuery.extend( Animation, { tweeners: { "*": [ function( prop, value ) { var tween = this.createTween( prop, value ); adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween ); return tween; } ] }, tweener: function( props, callback ) { if ( jQuery.isFunction( props ) ) { callback = props; props = [ "*" ]; } else { props = props.match( rnothtmlwhite ); } var prop, index = 0, length = props.length; for ( ; index < length; index++ ) { prop = props[ index ]; Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || []; Animation.tweeners[ prop ].unshift( callback ); } }, prefilters: [ defaultPrefilter ], prefilter: function( callback, prepend ) { if ( prepend ) { Animation.prefilters.unshift( callback ); } else { Animation.prefilters.push( callback ); } } } ); jQuery.speed = function( speed, easing, fn ) { var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : { complete: fn || !fn && easing || jQuery.isFunction( speed ) && speed, duration: speed, easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing }; // Go to the end state if fx are off if ( jQuery.fx.off ) { opt.duration = 0; } else { if ( typeof opt.duration !== "number" ) { if ( opt.duration in jQuery.fx.speeds ) { opt.duration = jQuery.fx.speeds[ opt.duration ]; } else { opt.duration = jQuery.fx.speeds._default; } } } // Normalize opt.queue - true/undefined/null -> "fx" if ( opt.queue == null || opt.queue === true ) { opt.queue = "fx"; } // Queueing opt.old = opt.complete; opt.complete = function() { if ( jQuery.isFunction( opt.old ) ) { opt.old.call( this ); } if ( opt.queue ) { jQuery.dequeue( this, opt.queue ); } }; return opt; }; jQuery.fn.extend( { fadeTo: function( speed, to, easing, callback ) { // Show any hidden elements after setting opacity to 0 return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show() // Animate to the value specified .end().animate( { opacity: to }, speed, easing, callback ); }, animate: function( prop, speed, easing, callback ) { var empty = jQuery.isEmptyObject( prop ), optall = jQuery.speed( speed, easing, callback ), doAnimation = function() { // Operate on a copy of prop so per-property easing won't be lost var anim = Animation( this, jQuery.extend( {}, prop ), optall ); // Empty animations, or finishing resolves immediately if ( empty || dataPriv.get( this, "finish" ) ) { anim.stop( true ); } }; doAnimation.finish = doAnimation; return empty || optall.queue === false ? this.each( doAnimation ) : this.queue( optall.queue, doAnimation ); }, stop: function( type, clearQueue, gotoEnd ) { var stopQueue = function( hooks ) { var stop = hooks.stop; delete hooks.stop; stop( gotoEnd ); }; if ( typeof type !== "string" ) { gotoEnd = clearQueue; clearQueue = type; type = undefined; } if ( clearQueue && type !== false ) { this.queue( type || "fx", [] ); } return this.each( function() { var dequeue = true, index = type != null && type + "queueHooks", timers = jQuery.timers, data = dataPriv.get( this ); if ( index ) { if ( data[ index ] && data[ index ].stop ) { stopQueue( data[ index ] ); } } else { for ( index in data ) { if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) { stopQueue( data[ index ] ); } } } for ( index = timers.length; index--; ) { if ( timers[ index ].elem === this && ( type == null || timers[ index ].queue === type ) ) { timers[ index ].anim.stop( gotoEnd ); dequeue = false; timers.splice( index, 1 ); } } // Start the next in the queue if the last step wasn't forced. // Timers currently will call their complete callbacks, which // will dequeue but only if they were gotoEnd. if ( dequeue || !gotoEnd ) { jQuery.dequeue( this, type ); } } ); }, finish: function( type ) { if ( type !== false ) { type = type || "fx"; } return this.each( function() { var index, data = dataPriv.get( this ), queue = data[ type + "queue" ], hooks = data[ type + "queueHooks" ], timers = jQuery.timers, length = queue ? queue.length : 0; // Enable finishing flag on private data data.finish = true; // Empty the queue first jQuery.queue( this, type, [] ); if ( hooks && hooks.stop ) { hooks.stop.call( this, true ); } // Look for any active animations, and finish them for ( index = timers.length; index--; ) { if ( timers[ index ].elem === this && timers[ index ].queue === type ) { timers[ index ].anim.stop( true ); timers.splice( index, 1 ); } } // Look for any animations in the old queue and finish them for ( index = 0; index < length; index++ ) { if ( queue[ index ] && queue[ index ].finish ) { queue[ index ].finish.call( this ); } } // Turn off finishing flag delete data.finish; } ); } } ); jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) { var cssFn = jQuery.fn[ name ]; jQuery.fn[ name ] = function( speed, easing, callback ) { return speed == null || typeof speed === "boolean" ? cssFn.apply( this, arguments ) : this.animate( genFx( name, true ), speed, easing, callback ); }; } ); // Generate shortcuts for custom animations jQuery.each( { slideDown: genFx( "show" ), slideUp: genFx( "hide" ), slideToggle: genFx( "toggle" ), fadeIn: { opacity: "show" }, fadeOut: { opacity: "hide" }, fadeToggle: { opacity: "toggle" } }, function( name, props ) { jQuery.fn[ name ] = function( speed, easing, callback ) { return this.animate( props, speed, easing, callback ); }; } ); jQuery.timers = []; jQuery.fx.tick = function() { var timer, i = 0, timers = jQuery.timers; fxNow = jQuery.now(); for ( ; i < timers.length; i++ ) { timer = timers[ i ]; // Run the timer and safely remove it when done (allowing for external removal) if ( !timer() && timers[ i ] === timer ) { timers.splice( i--, 1 ); } } if ( !timers.length ) { jQuery.fx.stop(); } fxNow = undefined; }; jQuery.fx.timer = function( timer ) { jQuery.timers.push( timer ); jQuery.fx.start(); }; jQuery.fx.interval = 13; jQuery.fx.start = function() { if ( inProgress ) { return; } inProgress = true; schedule(); }; jQuery.fx.stop = function() { inProgress = null; }; jQuery.fx.speeds = { slow: 600, fast: 200, // Default speed _default: 400 }; // Based off of the plugin by Clint Helfers, with permission. // https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/ jQuery.fn.delay = function( time, type ) { time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time; type = type || "fx"; return this.queue( type, function( next, hooks ) { var timeout = window.setTimeout( next, time ); hooks.stop = function() { window.clearTimeout( timeout ); }; } ); }; ( function() { var input = document.createElement( "input" ), select = document.createElement( "select" ), opt = select.appendChild( document.createElement( "option" ) ); input.type = "checkbox"; // Support: Android <=4.3 only // Default value for a checkbox should be "on" support.checkOn = input.value !== ""; // Support: IE <=11 only // Must access selectedIndex to make default options select support.optSelected = opt.selected; // Support: IE <=11 only // An input loses its value after becoming a radio input = document.createElement( "input" ); input.value = "t"; input.type = "radio"; support.radioValue = input.value === "t"; } )(); var boolHook, attrHandle = jQuery.expr.attrHandle; jQuery.fn.extend( { attr: function( name, value ) { return access( this, jQuery.attr, name, value, arguments.length > 1 ); }, removeAttr: function( name ) { return this.each( function() { jQuery.removeAttr( this, name ); } ); } } ); jQuery.extend( { attr: function( elem, name, value ) { var ret, hooks, nType = elem.nodeType; // Don't get/set attributes on text, comment and attribute nodes if ( nType === 3 || nType === 8 || nType === 2 ) { return; } // Fallback to prop when attributes are not supported if ( typeof elem.getAttribute === "undefined" ) { return jQuery.prop( elem, name, value ); } // Attribute hooks are determined by the lowercase version // Grab necessary hook if one is defined if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) { hooks = jQuery.attrHooks[ name.toLowerCase() ] || ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined ); } if ( value !== undefined ) { if ( value === null ) { jQuery.removeAttr( elem, name ); return; } if ( hooks && "set" in hooks && ( ret = hooks.set( elem, value, name ) ) !== undefined ) { return ret; } elem.setAttribute( name, value + "" ); return value; } if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) { return ret; } ret = jQuery.find.attr( elem, name ); // Non-existent attributes return null, we normalize to undefined return ret == null ? undefined : ret; }, attrHooks: { type: { set: function( elem, value ) { if ( !support.radioValue && value === "radio" && nodeName( elem, "input" ) ) { var val = elem.value; elem.setAttribute( "type", value ); if ( val ) { elem.value = val; } return value; } } } }, removeAttr: function( elem, value ) { var name, i = 0, // Attribute names can contain non-HTML whitespace characters // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2 attrNames = value && value.match( rnothtmlwhite ); if ( attrNames && elem.nodeType === 1 ) { while ( ( name = attrNames[ i++ ] ) ) { elem.removeAttribute( name ); } } } } ); // Hooks for boolean attributes boolHook = { set: function( elem, value, name ) { if ( value === false ) { // Remove boolean attributes when set to false jQuery.removeAttr( elem, name ); } else { elem.setAttribute( name, name ); } return name; } }; jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) { var getter = attrHandle[ name ] || jQuery.find.attr; attrHandle[ name ] = function( elem, name, isXML ) { var ret, handle, lowercaseName = name.toLowerCase(); if ( !isXML ) { // Avoid an infinite loop by temporarily removing this function from the getter handle = attrHandle[ lowercaseName ]; attrHandle[ lowercaseName ] = ret; ret = getter( elem, name, isXML ) != null ? lowercaseName : null; attrHandle[ lowercaseName ] = handle; } return ret; }; } ); var rfocusable = /^(?:input|select|textarea|button)$/i, rclickable = /^(?:a|area)$/i; jQuery.fn.extend( { prop: function( name, value ) { return access( this, jQuery.prop, name, value, arguments.length > 1 ); }, removeProp: function( name ) { return this.each( function() { delete this[ jQuery.propFix[ name ] || name ]; } ); } } ); jQuery.extend( { prop: function( elem, name, value ) { var ret, hooks, nType = elem.nodeType; // Don't get/set properties on text, comment and attribute nodes if ( nType === 3 || nType === 8 || nType === 2 ) { return; } if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) { // Fix name and attach hooks name = jQuery.propFix[ name ] || name; hooks = jQuery.propHooks[ name ]; } if ( value !== undefined ) { if ( hooks && "set" in hooks && ( ret = hooks.set( elem, value, name ) ) !== undefined ) { return ret; } return ( elem[ name ] = value ); } if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) { return ret; } return elem[ name ]; }, propHooks: { tabIndex: { get: function( elem ) { // Support: IE <=9 - 11 only // elem.tabIndex doesn't always return the // correct value when it hasn't been explicitly set // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/ // Use proper attribute retrieval(#12072) var tabindex = jQuery.find.attr( elem, "tabindex" ); if ( tabindex ) { return parseInt( tabindex, 10 ); } if ( rfocusable.test( elem.nodeName ) || rclickable.test( elem.nodeName ) && elem.href ) { return 0; } return -1; } } }, propFix: { "for": "htmlFor", "class": "className" } } ); // Support: IE <=11 only // Accessing the selectedIndex property // forces the browser to respect setting selected // on the option // The getter ensures a default option is selected // when in an optgroup // eslint rule "no-unused-expressions" is disabled for this code // since it considers such accessions noop if ( !support.optSelected ) { jQuery.propHooks.selected = { get: function( elem ) { /* eslint no-unused-expressions: "off" */ var parent = elem.parentNode; if ( parent && parent.parentNode ) { parent.parentNode.selectedIndex; } return null; }, set: function( elem ) { /* eslint no-unused-expressions: "off" */ var parent = elem.parentNode; if ( parent ) { parent.selectedIndex; if ( parent.parentNode ) { parent.parentNode.selectedIndex; } } } }; } jQuery.each( [ "tabIndex", "readOnly", "maxLength", "cellSpacing", "cellPadding", "rowSpan", "colSpan", "useMap", "frameBorder", "contentEditable" ], function() { jQuery.propFix[ this.toLowerCase() ] = this; } ); // Strip and collapse whitespace according to HTML spec // https://html.spec.whatwg.org/multipage/infrastructure.html#strip-and-collapse-whitespace function stripAndCollapse( value ) { var tokens = value.match( rnothtmlwhite ) || []; return tokens.join( " " ); } function getClass( elem ) { return elem.getAttribute && elem.getAttribute( "class" ) || ""; } jQuery.fn.extend( { addClass: function( value ) { var classes, elem, cur, curValue, clazz, j, finalValue, i = 0; if ( jQuery.isFunction( value ) ) { return this.each( function( j ) { jQuery( this ).addClass( value.call( this, j, getClass( this ) ) ); } ); } if ( typeof value === "string" && value ) { classes = value.match( rnothtmlwhite ) || []; while ( ( elem = this[ i++ ] ) ) { curValue = getClass( elem ); cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); if ( cur ) { j = 0; while ( ( clazz = classes[ j++ ] ) ) { if ( cur.indexOf( " " + clazz + " " ) < 0 ) { cur += clazz + " "; } } // Only assign if different to avoid unneeded rendering. finalValue = stripAndCollapse( cur ); if ( curValue !== finalValue ) { elem.setAttribute( "class", finalValue ); } } } } return this; }, removeClass: function( value ) { var classes, elem, cur, curValue, clazz, j, finalValue, i = 0; if ( jQuery.isFunction( value ) ) { return this.each( function( j ) { jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) ); } ); } if ( !arguments.length ) { return this.attr( "class", "" ); } if ( typeof value === "string" && value ) { classes = value.match( rnothtmlwhite ) || []; while ( ( elem = this[ i++ ] ) ) { curValue = getClass( elem ); // This expression is here for better compressibility (see addClass) cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); if ( cur ) { j = 0; while ( ( clazz = classes[ j++ ] ) ) { // Remove *all* instances while ( cur.indexOf( " " + clazz + " " ) > -1 ) { cur = cur.replace( " " + clazz + " ", " " ); } } // Only assign if different to avoid unneeded rendering. finalValue = stripAndCollapse( cur ); if ( curValue !== finalValue ) { elem.setAttribute( "class", finalValue ); } } } } return this; }, toggleClass: function( value, stateVal ) { var type = typeof value; if ( typeof stateVal === "boolean" && type === "string" ) { return stateVal ? this.addClass( value ) : this.removeClass( value ); } if ( jQuery.isFunction( value ) ) { return this.each( function( i ) { jQuery( this ).toggleClass( value.call( this, i, getClass( this ), stateVal ), stateVal ); } ); } return this.each( function() { var className, i, self, classNames; if ( type === "string" ) { // Toggle individual class names i = 0; self = jQuery( this ); classNames = value.match( rnothtmlwhite ) || []; while ( ( className = classNames[ i++ ] ) ) { // Check each className given, space separated list if ( self.hasClass( className ) ) { self.removeClass( className ); } else { self.addClass( className ); } } // Toggle whole class name } else if ( value === undefined || type === "boolean" ) { className = getClass( this ); if ( className ) { // Store className if set dataPriv.set( this, "__className__", className ); } // If the element has a class name or if we're passed `false`, // then remove the whole classname (if there was one, the above saved it). // Otherwise bring back whatever was previously saved (if anything), // falling back to the empty string if nothing was stored. if ( this.setAttribute ) { this.setAttribute( "class", className || value === false ? "" : dataPriv.get( this, "__className__" ) || "" ); } } } ); }, hasClass: function( selector ) { var className, elem, i = 0; className = " " + selector + " "; while ( ( elem = this[ i++ ] ) ) { if ( elem.nodeType === 1 && ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) { return true; } } return false; } } ); var rreturn = /\r/g; jQuery.fn.extend( { val: function( value ) { var hooks, ret, isFunction, elem = this[ 0 ]; if ( !arguments.length ) { if ( elem ) { hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ]; if ( hooks && "get" in hooks && ( ret = hooks.get( elem, "value" ) ) !== undefined ) { return ret; } ret = elem.value; // Handle most common string cases if ( typeof ret === "string" ) { return ret.replace( rreturn, "" ); } // Handle cases where value is null/undef or number return ret == null ? "" : ret; } return; } isFunction = jQuery.isFunction( value ); return this.each( function( i ) { var val; if ( this.nodeType !== 1 ) { return; } if ( isFunction ) { val = value.call( this, i, jQuery( this ).val() ); } else { val = value; } // Treat null/undefined as ""; convert numbers to string if ( val == null ) { val = ""; } else if ( typeof val === "number" ) { val += ""; } else if ( Array.isArray( val ) ) { val = jQuery.map( val, function( value ) { return value == null ? "" : value + ""; } ); } hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ]; // If set returns undefined, fall back to normal setting if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) { this.value = val; } } ); } } ); jQuery.extend( { valHooks: { option: { get: function( elem ) { var val = jQuery.find.attr( elem, "value" ); return val != null ? val : // Support: IE <=10 - 11 only // option.text throws exceptions (#14686, #14858) // Strip and collapse whitespace // https://html.spec.whatwg.org/#strip-and-collapse-whitespace stripAndCollapse( jQuery.text( elem ) ); } }, select: { get: function( elem ) { var value, option, i, options = elem.options, index = elem.selectedIndex, one = elem.type === "select-one", values = one ? null : [], max = one ? index + 1 : options.length; if ( index < 0 ) { i = max; } else { i = one ? index : 0; } // Loop through all the selected options for ( ; i < max; i++ ) { option = options[ i ]; // Support: IE <=9 only // IE8-9 doesn't update selected after form reset (#2551) if ( ( option.selected || i === index ) && // Don't return options that are disabled or in a disabled optgroup !option.disabled && ( !option.parentNode.disabled || !nodeName( option.parentNode, "optgroup" ) ) ) { // Get the specific value for the option value = jQuery( option ).val(); // We don't need an array for one selects if ( one ) { return value; } // Multi-Selects return an array values.push( value ); } } return values; }, set: function( elem, value ) { var optionSet, option, options = elem.options, values = jQuery.makeArray( value ), i = options.length; while ( i-- ) { option = options[ i ]; /* eslint-disable no-cond-assign */ if ( option.selected = jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1 ) { optionSet = true; } /* eslint-enable no-cond-assign */ } // Force browsers to behave consistently when non-matching value is set if ( !optionSet ) { elem.selectedIndex = -1; } return values; } } } } ); // Radios and checkboxes getter/setter jQuery.each( [ "radio", "checkbox" ], function() { jQuery.valHooks[ this ] = { set: function( elem, value ) { if ( Array.isArray( value ) ) { return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 ); } } }; if ( !support.checkOn ) { jQuery.valHooks[ this ].get = function( elem ) { return elem.getAttribute( "value" ) === null ? "on" : elem.value; }; } } ); // Return jQuery for attributes-only inclusion var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/; jQuery.extend( jQuery.event, { trigger: function( event, data, elem, onlyHandlers ) { var i, cur, tmp, bubbleType, ontype, handle, special, eventPath = [ elem || document ], type = hasOwn.call( event, "type" ) ? event.type : event, namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : []; cur = tmp = elem = elem || document; // Don't do events on text and comment nodes if ( elem.nodeType === 3 || elem.nodeType === 8 ) { return; } // focus/blur morphs to focusin/out; ensure we're not firing them right now if ( rfocusMorph.test( type + jQuery.event.triggered ) ) { return; } if ( type.indexOf( "." ) > -1 ) { // Namespaced trigger; create a regexp to match event type in handle() namespaces = type.split( "." ); type = namespaces.shift(); namespaces.sort(); } ontype = type.indexOf( ":" ) < 0 && "on" + type; // Caller can pass in a jQuery.Event object, Object, or just an event type string event = event[ jQuery.expando ] ? event : new jQuery.Event( type, typeof event === "object" && event ); // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true) event.isTrigger = onlyHandlers ? 2 : 3; event.namespace = namespaces.join( "." ); event.rnamespace = event.namespace ? new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) : null; // Clean up the event in case it is being reused event.result = undefined; if ( !event.target ) { event.target = elem; } // Clone any incoming data and prepend the event, creating the handler arg list data = data == null ? [ event ] : jQuery.makeArray( data, [ event ] ); // Allow special events to draw outside the lines special = jQuery.event.special[ type ] || {}; if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) { return; } // Determine event propagation path in advance, per W3C events spec (#9951) // Bubble up to document, then to window; watch for a global ownerDocument var (#9724) if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) { bubbleType = special.delegateType || type; if ( !rfocusMorph.test( bubbleType + type ) ) { cur = cur.parentNode; } for ( ; cur; cur = cur.parentNode ) { eventPath.push( cur ); tmp = cur; } // Only add window if we got to document (e.g., not plain obj or detached DOM) if ( tmp === ( elem.ownerDocument || document ) ) { eventPath.push( tmp.defaultView || tmp.parentWindow || window ); } } // Fire handlers on the event path i = 0; while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) { event.type = i > 1 ? bubbleType : special.bindType || type; // jQuery handler handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] && dataPriv.get( cur, "handle" ); if ( handle ) { handle.apply( cur, data ); } // Native handler handle = ontype && cur[ ontype ]; if ( handle && handle.apply && acceptData( cur ) ) { event.result = handle.apply( cur, data ); if ( event.result === false ) { event.preventDefault(); } } } event.type = type; // If nobody prevented the default action, do it now if ( !onlyHandlers && !event.isDefaultPrevented() ) { if ( ( !special._default || special._default.apply( eventPath.pop(), data ) === false ) && acceptData( elem ) ) { // Call a native DOM method on the target with the same name as the event. // Don't do default actions on window, that's where global variables be (#6170) if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) { // Don't re-trigger an onFOO event when we call its FOO() method tmp = elem[ ontype ]; if ( tmp ) { elem[ ontype ] = null; } // Prevent re-triggering of the same event, since we already bubbled it above jQuery.event.triggered = type; elem[ type ](); jQuery.event.triggered = undefined; if ( tmp ) { elem[ ontype ] = tmp; } } } } return event.result; }, // Piggyback on a donor event to simulate a different one // Used only for `focus(in | out)` events simulate: function( type, elem, event ) { var e = jQuery.extend( new jQuery.Event(), event, { type: type, isSimulated: true } ); jQuery.event.trigger( e, null, elem ); } } ); jQuery.fn.extend( { trigger: function( type, data ) { return this.each( function() { jQuery.event.trigger( type, data, this ); } ); }, triggerHandler: function( type, data ) { var elem = this[ 0 ]; if ( elem ) { return jQuery.event.trigger( type, data, elem, true ); } } } ); jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " + "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " + "change select submit keydown keypress keyup contextmenu" ).split( " " ), function( i, name ) { // Handle event binding jQuery.fn[ name ] = function( data, fn ) { return arguments.length > 0 ? this.on( name, null, data, fn ) : this.trigger( name ); }; } ); jQuery.fn.extend( { hover: function( fnOver, fnOut ) { return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver ); } } ); support.focusin = "onfocusin" in window; // Support: Firefox <=44 // Firefox doesn't have focus(in | out) events // Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787 // // Support: Chrome <=48 - 49, Safari <=9.0 - 9.1 // focus(in | out) events fire after focus & blur events, // which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order // Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857 if ( !support.focusin ) { jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) { // Attach a single capturing handler on the document while someone wants focusin/focusout var handler = function( event ) { jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) ); }; jQuery.event.special[ fix ] = { setup: function() { var doc = this.ownerDocument || this, attaches = dataPriv.access( doc, fix ); if ( !attaches ) { doc.addEventListener( orig, handler, true ); } dataPriv.access( doc, fix, ( attaches || 0 ) + 1 ); }, teardown: function() { var doc = this.ownerDocument || this, attaches = dataPriv.access( doc, fix ) - 1; if ( !attaches ) { doc.removeEventListener( orig, handler, true ); dataPriv.remove( doc, fix ); } else { dataPriv.access( doc, fix, attaches ); } } }; } ); } var location = window.location; var nonce = jQuery.now(); var rquery = ( /\?/ ); // Cross-browser xml parsing jQuery.parseXML = function( data ) { var xml; if ( !data || typeof data !== "string" ) { return null; } // Support: IE 9 - 11 only // IE throws on parseFromString with invalid input. try { xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" ); } catch ( e ) { xml = undefined; } if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) { jQuery.error( "Invalid XML: " + data ); } return xml; }; var rbracket = /\[\]$/, rCRLF = /\r?\n/g, rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i, rsubmittable = /^(?:input|select|textarea|keygen)/i; function buildParams( prefix, obj, traditional, add ) { var name; if ( Array.isArray( obj ) ) { // Serialize array item. jQuery.each( obj, function( i, v ) { if ( traditional || rbracket.test( prefix ) ) { // Treat each array item as a scalar. add( prefix, v ); } else { // Item is non-scalar (array or object), encode its numeric index. buildParams( prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]", v, traditional, add ); } } ); } else if ( !traditional && jQuery.type( obj ) === "object" ) { // Serialize object item. for ( name in obj ) { buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add ); } } else { // Serialize scalar item. add( prefix, obj ); } } // Serialize an array of form elements or a set of // key/values into a query string jQuery.param = function( a, traditional ) { var prefix, s = [], add = function( key, valueOrFunction ) { // If value is a function, invoke it and use its return value var value = jQuery.isFunction( valueOrFunction ) ? valueOrFunction() : valueOrFunction; s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value == null ? "" : value ); }; // If an array was passed in, assume that it is an array of form elements. if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) { // Serialize the form elements jQuery.each( a, function() { add( this.name, this.value ); } ); } else { // If traditional, encode the "old" way (the way 1.3.2 or older // did it), otherwise encode params recursively. for ( prefix in a ) { buildParams( prefix, a[ prefix ], traditional, add ); } } // Return the resulting serialization return s.join( "&" ); }; jQuery.fn.extend( { serialize: function() { return jQuery.param( this.serializeArray() ); }, serializeArray: function() { return this.map( function() { // Can add propHook for "elements" to filter or add form elements var elements = jQuery.prop( this, "elements" ); return elements ? jQuery.makeArray( elements ) : this; } ) .filter( function() { var type = this.type; // Use .is( ":disabled" ) so that fieldset[disabled] works return this.name && !jQuery( this ).is( ":disabled" ) && rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) && ( this.checked || !rcheckableType.test( type ) ); } ) .map( function( i, elem ) { var val = jQuery( this ).val(); if ( val == null ) { return null; } if ( Array.isArray( val ) ) { return jQuery.map( val, function( val ) { return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; } ); } return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; } ).get(); } } ); var r20 = /%20/g, rhash = /#.*$/, rantiCache = /([?&])_=[^&]*/, rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg, // #7653, #8125, #8152: local protocol detection rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/, rnoContent = /^(?:GET|HEAD)$/, rprotocol = /^\/\//, /* Prefilters * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example) * 2) These are called: * - BEFORE asking for a transport * - AFTER param serialization (s.data is a string if s.processData is true) * 3) key is the dataType * 4) the catchall symbol "*" can be used * 5) execution will start with transport dataType and THEN continue down to "*" if needed */ prefilters = {}, /* Transports bindings * 1) key is the dataType * 2) the catchall symbol "*" can be used * 3) selection will start with transport dataType and THEN go to "*" if needed */ transports = {}, // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression allTypes = "*/".concat( "*" ), // Anchor tag for parsing the document origin originAnchor = document.createElement( "a" ); originAnchor.href = location.href; // Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport function addToPrefiltersOrTransports( structure ) { // dataTypeExpression is optional and defaults to "*" return function( dataTypeExpression, func ) { if ( typeof dataTypeExpression !== "string" ) { func = dataTypeExpression; dataTypeExpression = "*"; } var dataType, i = 0, dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || []; if ( jQuery.isFunction( func ) ) { // For each dataType in the dataTypeExpression while ( ( dataType = dataTypes[ i++ ] ) ) { // Prepend if requested if ( dataType[ 0 ] === "+" ) { dataType = dataType.slice( 1 ) || "*"; ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func ); // Otherwise append } else { ( structure[ dataType ] = structure[ dataType ] || [] ).push( func ); } } } }; } // Base inspection function for prefilters and transports function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) { var inspected = {}, seekingTransport = ( structure === transports ); function inspect( dataType ) { var selected; inspected[ dataType ] = true; jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) { var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR ); if ( typeof dataTypeOrTransport === "string" && !seekingTransport && !inspected[ dataTypeOrTransport ] ) { options.dataTypes.unshift( dataTypeOrTransport ); inspect( dataTypeOrTransport ); return false; } else if ( seekingTransport ) { return !( selected = dataTypeOrTransport ); } } ); return selected; } return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" ); } // A special extend for ajax options // that takes "flat" options (not to be deep extended) // Fixes #9887 function ajaxExtend( target, src ) { var key, deep, flatOptions = jQuery.ajaxSettings.flatOptions || {}; for ( key in src ) { if ( src[ key ] !== undefined ) { ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ]; } } if ( deep ) { jQuery.extend( true, target, deep ); } return target; } /* Handles responses to an ajax request: * - finds the right dataType (mediates between content-type and expected dataType) * - returns the corresponding response */ function ajaxHandleResponses( s, jqXHR, responses ) { var ct, type, finalDataType, firstDataType, contents = s.contents, dataTypes = s.dataTypes; // Remove auto dataType and get content-type in the process while ( dataTypes[ 0 ] === "*" ) { dataTypes.shift(); if ( ct === undefined ) { ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" ); } } // Check if we're dealing with a known content-type if ( ct ) { for ( type in contents ) { if ( contents[ type ] && contents[ type ].test( ct ) ) { dataTypes.unshift( type ); break; } } } // Check to see if we have a response for the expected dataType if ( dataTypes[ 0 ] in responses ) { finalDataType = dataTypes[ 0 ]; } else { // Try convertible dataTypes for ( type in responses ) { if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) { finalDataType = type; break; } if ( !firstDataType ) { firstDataType = type; } } // Or just use first one finalDataType = finalDataType || firstDataType; } // If we found a dataType // We add the dataType to the list if needed // and return the corresponding response if ( finalDataType ) { if ( finalDataType !== dataTypes[ 0 ] ) { dataTypes.unshift( finalDataType ); } return responses[ finalDataType ]; } } /* Chain conversions given the request and the original response * Also sets the responseXXX fields on the jqXHR instance */ function ajaxConvert( s, response, jqXHR, isSuccess ) { var conv2, current, conv, tmp, prev, converters = {}, // Work with a copy of dataTypes in case we need to modify it for conversion dataTypes = s.dataTypes.slice(); // Create converters map with lowercased keys if ( dataTypes[ 1 ] ) { for ( conv in s.converters ) { converters[ conv.toLowerCase() ] = s.converters[ conv ]; } } current = dataTypes.shift(); // Convert to each sequential dataType while ( current ) { if ( s.responseFields[ current ] ) { jqXHR[ s.responseFields[ current ] ] = response; } // Apply the dataFilter if provided if ( !prev && isSuccess && s.dataFilter ) { response = s.dataFilter( response, s.dataType ); } prev = current; current = dataTypes.shift(); if ( current ) { // There's only work to do if current dataType is non-auto if ( current === "*" ) { current = prev; // Convert response if prev dataType is non-auto and differs from current } else if ( prev !== "*" && prev !== current ) { // Seek a direct converter conv = converters[ prev + " " + current ] || converters[ "* " + current ]; // If none found, seek a pair if ( !conv ) { for ( conv2 in converters ) { // If conv2 outputs current tmp = conv2.split( " " ); if ( tmp[ 1 ] === current ) { // If prev can be converted to accepted input conv = converters[ prev + " " + tmp[ 0 ] ] || converters[ "* " + tmp[ 0 ] ]; if ( conv ) { // Condense equivalence converters if ( conv === true ) { conv = converters[ conv2 ]; // Otherwise, insert the intermediate dataType } else if ( converters[ conv2 ] !== true ) { current = tmp[ 0 ]; dataTypes.unshift( tmp[ 1 ] ); } break; } } } } // Apply converter (if not an equivalence) if ( conv !== true ) { // Unless errors are allowed to bubble, catch and return them if ( conv && s.throws ) { response = conv( response ); } else { try { response = conv( response ); } catch ( e ) { return { state: "parsererror", error: conv ? e : "No conversion from " + prev + " to " + current }; } } } } } } return { state: "success", data: response }; } jQuery.extend( { // Counter for holding the number of active queries active: 0, // Last-Modified header cache for next request lastModified: {}, etag: {}, ajaxSettings: { url: location.href, type: "GET", isLocal: rlocalProtocol.test( location.protocol ), global: true, processData: true, async: true, contentType: "application/x-www-form-urlencoded; charset=UTF-8", /* timeout: 0, data: null, dataType: null, username: null, password: null, cache: null, throws: false, traditional: false, headers: {}, */ accepts: { "*": allTypes, text: "text/plain", html: "text/html", xml: "application/xml, text/xml", json: "application/json, text/javascript" }, contents: { xml: /\bxml\b/, html: /\bhtml/, json: /\bjson\b/ }, responseFields: { xml: "responseXML", text: "responseText", json: "responseJSON" }, // Data converters // Keys separate source (or catchall "*") and destination types with a single space converters: { // Convert anything to text "* text": String, // Text to html (true = no transformation) "text html": true, // Evaluate text as a json expression "text json": JSON.parse, // Parse text as xml "text xml": jQuery.parseXML }, // For options that shouldn't be deep extended: // you can add your own custom options here if // and when you create one that shouldn't be // deep extended (see ajaxExtend) flatOptions: { url: true, context: true } }, // Creates a full fledged settings object into target // with both ajaxSettings and settings fields. // If target is omitted, writes into ajaxSettings. ajaxSetup: function( target, settings ) { return settings ? // Building a settings object ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) : // Extending ajaxSettings ajaxExtend( jQuery.ajaxSettings, target ); }, ajaxPrefilter: addToPrefiltersOrTransports( prefilters ), ajaxTransport: addToPrefiltersOrTransports( transports ), // Main method ajax: function( url, options ) { // If url is an object, simulate pre-1.5 signature if ( typeof url === "object" ) { options = url; url = undefined; } // Force options to be an object options = options || {}; var transport, // URL without anti-cache param cacheURL, // Response headers responseHeadersString, responseHeaders, // timeout handle timeoutTimer, // Url cleanup var urlAnchor, // Request state (becomes false upon send and true upon completion) completed, // To know if global events are to be dispatched fireGlobals, // Loop variable i, // uncached part of the url uncached, // Create the final options object s = jQuery.ajaxSetup( {}, options ), // Callbacks context callbackContext = s.context || s, // Context for global events is callbackContext if it is a DOM node or jQuery collection globalEventContext = s.context && ( callbackContext.nodeType || callbackContext.jquery ) ? jQuery( callbackContext ) : jQuery.event, // Deferreds deferred = jQuery.Deferred(), completeDeferred = jQuery.Callbacks( "once memory" ), // Status-dependent callbacks statusCode = s.statusCode || {}, // Headers (they are sent all at once) requestHeaders = {}, requestHeadersNames = {}, // Default abort message strAbort = "canceled", // Fake xhr jqXHR = { readyState: 0, // Builds headers hashtable if needed getResponseHeader: function( key ) { var match; if ( completed ) { if ( !responseHeaders ) { responseHeaders = {}; while ( ( match = rheaders.exec( responseHeadersString ) ) ) { responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ]; } } match = responseHeaders[ key.toLowerCase() ]; } return match == null ? null : match; }, // Raw string getAllResponseHeaders: function() { return completed ? responseHeadersString : null; }, // Caches the header setRequestHeader: function( name, value ) { if ( completed == null ) { name = requestHeadersNames[ name.toLowerCase() ] = requestHeadersNames[ name.toLowerCase() ] || name; requestHeaders[ name ] = value; } return this; }, // Overrides response content-type header overrideMimeType: function( type ) { if ( completed == null ) { s.mimeType = type; } return this; }, // Status-dependent callbacks statusCode: function( map ) { var code; if ( map ) { if ( completed ) { // Execute the appropriate callbacks jqXHR.always( map[ jqXHR.status ] ); } else { // Lazy-add the new callbacks in a way that preserves old ones for ( code in map ) { statusCode[ code ] = [ statusCode[ code ], map[ code ] ]; } } } return this; }, // Cancel the request abort: function( statusText ) { var finalText = statusText || strAbort; if ( transport ) { transport.abort( finalText ); } done( 0, finalText ); return this; } }; // Attach deferreds deferred.promise( jqXHR ); // Add protocol if not provided (prefilters might expect it) // Handle falsy url in the settings object (#10093: consistency with old signature) // We also use the url parameter if available s.url = ( ( url || s.url || location.href ) + "" ) .replace( rprotocol, location.protocol + "//" ); // Alias method option to type as per ticket #12004 s.type = options.method || options.type || s.method || s.type; // Extract dataTypes list s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ]; // A cross-domain request is in order when the origin doesn't match the current origin. if ( s.crossDomain == null ) { urlAnchor = document.createElement( "a" ); // Support: IE <=8 - 11, Edge 12 - 13 // IE throws exception on accessing the href property if url is malformed, // e.g. http://example.com:80x/ try { urlAnchor.href = s.url; // Support: IE <=8 - 11 only // Anchor's host property isn't correctly set when s.url is relative urlAnchor.href = urlAnchor.href; s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !== urlAnchor.protocol + "//" + urlAnchor.host; } catch ( e ) { // If there is an error parsing the URL, assume it is crossDomain, // it can be rejected by the transport if it is invalid s.crossDomain = true; } } // Convert data if not already a string if ( s.data && s.processData && typeof s.data !== "string" ) { s.data = jQuery.param( s.data, s.traditional ); } // Apply prefilters inspectPrefiltersOrTransports( prefilters, s, options, jqXHR ); // If request was aborted inside a prefilter, stop there if ( completed ) { return jqXHR; } // We can fire global events as of now if asked to // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118) fireGlobals = jQuery.event && s.global; // Watch for a new set of requests if ( fireGlobals && jQuery.active++ === 0 ) { jQuery.event.trigger( "ajaxStart" ); } // Uppercase the type s.type = s.type.toUpperCase(); // Determine if request has content s.hasContent = !rnoContent.test( s.type ); // Save the URL in case we're toying with the If-Modified-Since // and/or If-None-Match header later on // Remove hash to simplify url manipulation cacheURL = s.url.replace( rhash, "" ); // More options handling for requests with no content if ( !s.hasContent ) { // Remember the hash so we can put it back uncached = s.url.slice( cacheURL.length ); // If data is available, append data to url if ( s.data ) { cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data; // #9682: remove data so that it's not used in an eventual retry delete s.data; } // Add or update anti-cache param if needed if ( s.cache === false ) { cacheURL = cacheURL.replace( rantiCache, "$1" ); uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached; } // Put hash and anti-cache on the URL that will be requested (gh-1732) s.url = cacheURL + uncached; // Change '%20' to '+' if this is encoded form body content (gh-2658) } else if ( s.data && s.processData && ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) { s.data = s.data.replace( r20, "+" ); } // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. if ( s.ifModified ) { if ( jQuery.lastModified[ cacheURL ] ) { jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] ); } if ( jQuery.etag[ cacheURL ] ) { jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] ); } } // Set the correct header, if data is being sent if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) { jqXHR.setRequestHeader( "Content-Type", s.contentType ); } // Set the Accepts header for the server, depending on the dataType jqXHR.setRequestHeader( "Accept", s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ? s.accepts[ s.dataTypes[ 0 ] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) : s.accepts[ "*" ] ); // Check for headers option for ( i in s.headers ) { jqXHR.setRequestHeader( i, s.headers[ i ] ); } // Allow custom headers/mimetypes and early abort if ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) { // Abort if not done already and return return jqXHR.abort(); } // Aborting is no longer a cancellation strAbort = "abort"; // Install callbacks on deferreds completeDeferred.add( s.complete ); jqXHR.done( s.success ); jqXHR.fail( s.error ); // Get transport transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR ); // If no transport, we auto-abort if ( !transport ) { done( -1, "No Transport" ); } else { jqXHR.readyState = 1; // Send global event if ( fireGlobals ) { globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] ); } // If request was aborted inside ajaxSend, stop there if ( completed ) { return jqXHR; } // Timeout if ( s.async && s.timeout > 0 ) { timeoutTimer = window.setTimeout( function() { jqXHR.abort( "timeout" ); }, s.timeout ); } try { completed = false; transport.send( requestHeaders, done ); } catch ( e ) { // Rethrow post-completion exceptions if ( completed ) { throw e; } // Propagate others as results done( -1, e ); } } // Callback for when everything is done function done( status, nativeStatusText, responses, headers ) { var isSuccess, success, error, response, modified, statusText = nativeStatusText; // Ignore repeat invocations if ( completed ) { return; } completed = true; // Clear timeout if it exists if ( timeoutTimer ) { window.clearTimeout( timeoutTimer ); } // Dereference transport for early garbage collection // (no matter how long the jqXHR object will be used) transport = undefined; // Cache response headers responseHeadersString = headers || ""; // Set readyState jqXHR.readyState = status > 0 ? 4 : 0; // Determine if successful isSuccess = status >= 200 && status < 300 || status === 304; // Get response data if ( responses ) { response = ajaxHandleResponses( s, jqXHR, responses ); } // Convert no matter what (that way responseXXX fields are always set) response = ajaxConvert( s, response, jqXHR, isSuccess ); // If successful, handle type chaining if ( isSuccess ) { // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. if ( s.ifModified ) { modified = jqXHR.getResponseHeader( "Last-Modified" ); if ( modified ) { jQuery.lastModified[ cacheURL ] = modified; } modified = jqXHR.getResponseHeader( "etag" ); if ( modified ) { jQuery.etag[ cacheURL ] = modified; } } // if no content if ( status === 204 || s.type === "HEAD" ) { statusText = "nocontent"; // if not modified } else if ( status === 304 ) { statusText = "notmodified"; // If we have data, let's convert it } else { statusText = response.state; success = response.data; error = response.error; isSuccess = !error; } } else { // Extract error from statusText and normalize for non-aborts error = statusText; if ( status || !statusText ) { statusText = "error"; if ( status < 0 ) { status = 0; } } } // Set data for the fake xhr object jqXHR.status = status; jqXHR.statusText = ( nativeStatusText || statusText ) + ""; // Success/Error if ( isSuccess ) { deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] ); } else { deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] ); } // Status-dependent callbacks jqXHR.statusCode( statusCode ); statusCode = undefined; if ( fireGlobals ) { globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError", [ jqXHR, s, isSuccess ? success : error ] ); } // Complete completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] ); if ( fireGlobals ) { globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] ); // Handle the global AJAX counter if ( !( --jQuery.active ) ) { jQuery.event.trigger( "ajaxStop" ); } } } return jqXHR; }, getJSON: function( url, data, callback ) { return jQuery.get( url, data, callback, "json" ); }, getScript: function( url, callback ) { return jQuery.get( url, undefined, callback, "script" ); } } ); jQuery.each( [ "get", "post" ], function( i, method ) { jQuery[ method ] = function( url, data, callback, type ) { // Shift arguments if data argument was omitted if ( jQuery.isFunction( data ) ) { type = type || callback; callback = data; data = undefined; } // The url can be an options object (which then must have .url) return jQuery.ajax( jQuery.extend( { url: url, type: method, dataType: type, data: data, success: callback }, jQuery.isPlainObject( url ) && url ) ); }; } ); jQuery._evalUrl = function( url ) { return jQuery.ajax( { url: url, // Make this explicit, since user can override this through ajaxSetup (#11264) type: "GET", dataType: "script", cache: true, async: false, global: false, "throws": true } ); }; jQuery.fn.extend( { wrapAll: function( html ) { var wrap; if ( this[ 0 ] ) { if ( jQuery.isFunction( html ) ) { html = html.call( this[ 0 ] ); } // The elements to wrap the target around wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true ); if ( this[ 0 ].parentNode ) { wrap.insertBefore( this[ 0 ] ); } wrap.map( function() { var elem = this; while ( elem.firstElementChild ) { elem = elem.firstElementChild; } return elem; } ).append( this ); } return this; }, wrapInner: function( html ) { if ( jQuery.isFunction( html ) ) { return this.each( function( i ) { jQuery( this ).wrapInner( html.call( this, i ) ); } ); } return this.each( function() { var self = jQuery( this ), contents = self.contents(); if ( contents.length ) { contents.wrapAll( html ); } else { self.append( html ); } } ); }, wrap: function( html ) { var isFunction = jQuery.isFunction( html ); return this.each( function( i ) { jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html ); } ); }, unwrap: function( selector ) { this.parent( selector ).not( "body" ).each( function() { jQuery( this ).replaceWith( this.childNodes ); } ); return this; } } ); jQuery.expr.pseudos.hidden = function( elem ) { return !jQuery.expr.pseudos.visible( elem ); }; jQuery.expr.pseudos.visible = function( elem ) { return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length ); }; jQuery.ajaxSettings.xhr = function() { try { return new window.XMLHttpRequest(); } catch ( e ) {} }; var xhrSuccessStatus = { // File protocol always yields status code 0, assume 200 0: 200, // Support: IE <=9 only // #1450: sometimes IE returns 1223 when it should be 204 1223: 204 }, xhrSupported = jQuery.ajaxSettings.xhr(); support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported ); support.ajax = xhrSupported = !!xhrSupported; jQuery.ajaxTransport( function( options ) { var callback, errorCallback; // Cross domain only allowed if supported through XMLHttpRequest if ( support.cors || xhrSupported && !options.crossDomain ) { return { send: function( headers, complete ) { var i, xhr = options.xhr(); xhr.open( options.type, options.url, options.async, options.username, options.password ); // Apply custom fields if provided if ( options.xhrFields ) { for ( i in options.xhrFields ) { xhr[ i ] = options.xhrFields[ i ]; } } // Override mime type if needed if ( options.mimeType && xhr.overrideMimeType ) { xhr.overrideMimeType( options.mimeType ); } // X-Requested-With header // For cross-domain requests, seeing as conditions for a preflight are // akin to a jigsaw puzzle, we simply never set it to be sure. // (it can always be set on a per-request basis or even using ajaxSetup) // For same-domain requests, won't change header if already provided. if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) { headers[ "X-Requested-With" ] = "XMLHttpRequest"; } // Set headers for ( i in headers ) { xhr.setRequestHeader( i, headers[ i ] ); } // Callback callback = function( type ) { return function() { if ( callback ) { callback = errorCallback = xhr.onload = xhr.onerror = xhr.onabort = xhr.onreadystatechange = null; if ( type === "abort" ) { xhr.abort(); } else if ( type === "error" ) { // Support: IE <=9 only // On a manual native abort, IE9 throws // errors on any property access that is not readyState if ( typeof xhr.status !== "number" ) { complete( 0, "error" ); } else { complete( // File: protocol always yields status 0; see #8605, #14207 xhr.status, xhr.statusText ); } } else { complete( xhrSuccessStatus[ xhr.status ] || xhr.status, xhr.statusText, // Support: IE <=9 only // IE9 has no XHR2 but throws on binary (trac-11426) // For XHR2 non-text, let the caller handle it (gh-2498) ( xhr.responseType || "text" ) !== "text" || typeof xhr.responseText !== "string" ? { binary: xhr.response } : { text: xhr.responseText }, xhr.getAllResponseHeaders() ); } } }; }; // Listen to events xhr.onload = callback(); errorCallback = xhr.onerror = callback( "error" ); // Support: IE 9 only // Use onreadystatechange to replace onabort // to handle uncaught aborts if ( xhr.onabort !== undefined ) { xhr.onabort = errorCallback; } else { xhr.onreadystatechange = function() { // Check readyState before timeout as it changes if ( xhr.readyState === 4 ) { // Allow onerror to be called first, // but that will not handle a native abort // Also, save errorCallback to a variable // as xhr.onerror cannot be accessed window.setTimeout( function() { if ( callback ) { errorCallback(); } } ); } }; } // Create the abort callback callback = callback( "abort" ); try { // Do send the request (this may raise an exception) xhr.send( options.hasContent && options.data || null ); } catch ( e ) { // #14683: Only rethrow if this hasn't been notified as an error yet if ( callback ) { throw e; } } }, abort: function() { if ( callback ) { callback(); } } }; } } ); // Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432) jQuery.ajaxPrefilter( function( s ) { if ( s.crossDomain ) { s.contents.script = false; } } ); // Install script dataType jQuery.ajaxSetup( { accepts: { script: "text/javascript, application/javascript, " + "application/ecmascript, application/x-ecmascript" }, contents: { script: /\b(?:java|ecma)script\b/ }, converters: { "text script": function( text ) { jQuery.globalEval( text ); return text; } } } ); // Handle cache's special case and crossDomain jQuery.ajaxPrefilter( "script", function( s ) { if ( s.cache === undefined ) { s.cache = false; } if ( s.crossDomain ) { s.type = "GET"; } } ); // Bind script tag hack transport jQuery.ajaxTransport( "script", function( s ) { // This transport only deals with cross domain requests if ( s.crossDomain ) { var script, callback; return { send: function( _, complete ) { script = jQuery( " ================================================ FILE: doc/html/index.html ================================================ ffmpeg-python: Python bindings for FFmpeg — ffmpeg-python documentation

ffmpeg-python: Python bindings for FFmpeg

Github

https://github.com/kkroening/ffmpeg-python

class ffmpeg.Stream(upstream_node, upstream_label, node_types, upstream_selector=None)

Bases: object

Represents the outgoing edge of an upstream node; may be used to create more downstream nodes.

property audio

Select the audio-portion of a stream.

Some ffmpeg filters drop audio streams, and care must be taken to preserve the audio in the final output. The .audio and .video operators can be used to reference the audio/video portions of a stream so that they can be processed separately and then re-combined later in the pipeline. This dilemma is intrinsic to ffmpeg, and ffmpeg-python tries to stay out of the way while users may refer to the official ffmpeg documentation as to why certain filters drop audio.

stream.audio is a shorthand for stream['a'].

Example

Process the audio and video portions of a stream independently:

input = ffmpeg.input('in.mp4')
audio = input.audio.filter("aecho", 0.8, 0.9, 1000, 0.3)
video = input.video.hflip()
out = ffmpeg.output(audio, video, 'out.mp4')
property video

Select the video-portion of a stream.

Some ffmpeg filters drop audio streams, and care must be taken to preserve the audio in the final output. The .audio and .video operators can be used to reference the audio/video portions of a stream so that they can be processed separately and then re-combined later in the pipeline. This dilemma is intrinsic to ffmpeg, and ffmpeg-python tries to stay out of the way while users may refer to the official ffmpeg documentation as to why certain filters drop audio.

stream.video is a shorthand for stream['v'].

Example

Process the audio and video portions of a stream independently:

input = ffmpeg.input('in.mp4')
audio = input.audio.filter("aecho", 0.8, 0.9, 1000, 0.3)
video = input.video.hflip()
out = ffmpeg.output(audio, video, 'out.mp4')
view(detail=False, filename=None, pipe=False, **kwargs)
ffmpeg.input(filename, **kwargs)

Input file URL (ffmpeg -i option)

Any supplied kwargs are passed to ffmpeg verbatim (e.g. t=20, f='mp4', acodec='pcm', etc.).

To tell ffmpeg to read from stdin, use pipe: as the filename.

Official documentation: Main options

ffmpeg.merge_outputs(*streams)

Include all given outputs in one ffmpeg command line

ffmpeg.output(*streams_and_filename, **kwargs)

Output file URL

Syntax:

ffmpeg.output(stream1[, stream2, stream3…], filename, **ffmpeg_args)

Any supplied keyword arguments are passed to ffmpeg verbatim (e.g. t=20, f='mp4', acodec='pcm', vcodec='rawvideo', etc.). Some keyword-arguments are handled specially, as shown below.

Parameters
  • video_bitrate – parameter for -b:v, e.g. video_bitrate=1000.

  • audio_bitrate – parameter for -b:a, e.g. audio_bitrate=200.

  • format – alias for -f parameter, e.g. format='mp4' (equivalent to f='mp4').

If multiple streams are provided, they are mapped to the same output.

To tell ffmpeg to write to stdout, use pipe: as the filename.

Official documentation: Synopsis

ffmpeg.overwrite_output(stream)

Overwrite output files without asking (ffmpeg -y option)

Official documentation: Main options

ffmpeg.probe(filename, cmd='ffprobe', **kwargs)

Run ffprobe on the specified file and return a JSON representation of the output.

Raises

ffmpeg.Error – if ffprobe returns a non-zero exit code, an Error is returned with a generic error message. The stderr output can be retrieved by accessing the stderr property of the exception.

ffmpeg.compile(stream_spec, cmd='ffmpeg', overwrite_output=False)

Build command-line for invoking ffmpeg.

The run() function uses this to build the command line arguments and should work in most cases, but calling this function directly is useful for debugging or if you need to invoke ffmpeg manually for whatever reason.

This is the same as calling get_args() except that it also includes the ffmpeg command as the first argument.

exception ffmpeg.Error(cmd, stdout, stderr)

Bases: Exception

ffmpeg.get_args(stream_spec, overwrite_output=False)

Build command-line arguments to be passed to ffmpeg.

ffmpeg.run(stream_spec, cmd='ffmpeg', capture_stdout=False, capture_stderr=False, input=None, quiet=False, overwrite_output=False)

Invoke ffmpeg for the supplied node graph.

Parameters
  • capture_stdout – if True, capture stdout (to be used with pipe: ffmpeg outputs).

  • capture_stderr – if True, capture stderr.

  • quiet – shorthand for setting capture_stdout and capture_stderr.

  • input – text to be sent to stdin (to be used with pipe: ffmpeg inputs)

  • **kwargs – keyword-arguments passed to get_args() (e.g. overwrite_output=True).

Returns: (out, err) tuple containing captured stdout and stderr data.

ffmpeg.run_async(stream_spec, cmd='ffmpeg', pipe_stdin=False, pipe_stdout=False, pipe_stderr=False, quiet=False, overwrite_output=False)

Asynchronously invoke ffmpeg for the supplied node graph.

Parameters
  • pipe_stdin – if True, connect pipe to subprocess stdin (to be used with pipe: ffmpeg inputs).

  • pipe_stdout – if True, connect pipe to subprocess stdout (to be used with pipe: ffmpeg outputs).

  • pipe_stderr – if True, connect pipe to subprocess stderr.

  • quiet – shorthand for setting capture_stdout and capture_stderr.

  • **kwargs – keyword-arguments passed to get_args() (e.g. overwrite_output=True).

Returns

A subprocess Popen object representing the child process.

Examples

Run and stream input:

process = (
    ffmpeg
    .input('pipe:', format='rawvideo', pix_fmt='rgb24', s='{}x{}'.format(width, height))
    .output(out_filename, pix_fmt='yuv420p')
    .overwrite_output()
    .run_async(pipe_stdin=True)
)
process.communicate(input=input_data)

Run and capture output:

process = (
    ffmpeg
    .input(in_filename)
    .output('pipe':, format='rawvideo', pix_fmt='rgb24')
    .run_async(pipe_stdout=True, pipe_stderr=True)
)
out, err = process.communicate()

Process video frame-by-frame using numpy:

process1 = (
    ffmpeg
    .input(in_filename)
    .output('pipe:', format='rawvideo', pix_fmt='rgb24')
    .run_async(pipe_stdout=True)
)

process2 = (
    ffmpeg
    .input('pipe:', format='rawvideo', pix_fmt='rgb24', s='{}x{}'.format(width, height))
    .output(out_filename, pix_fmt='yuv420p')
    .overwrite_output()
    .run_async(pipe_stdin=True)
)

while True:
    in_bytes = process1.stdout.read(width * height * 3)
    if not in_bytes:
        break
    in_frame = (
        np
        .frombuffer(in_bytes, np.uint8)
        .reshape([height, width, 3])
    )
    out_frame = in_frame * 0.3
    process2.stdin.write(
        frame
        .astype(np.uint8)
        .tobytes()
    )

process2.stdin.close()
process1.wait()
process2.wait()
ffmpeg.view(stream_spec, detail=False, filename=None, pipe=False, **kwargs)
ffmpeg.colorchannelmixer(stream, *args, **kwargs)

Adjust video input frames by re-mixing color channels.

Official documentation: colorchannelmixer

ffmpeg.concat(*streams, **kwargs)

Concatenate audio and video streams, joining them together one after the other.

The filter works on segments of synchronized video and audio streams. All segments must have the same number of streams of each type, and that will also be the number of streams at output.

Parameters

unsafe – Activate unsafe mode: do not fail if segments have a different format.

Related streams do not always have exactly the same duration, for various reasons including codec frame size or sloppy authoring. For that reason, related synchronized streams (e.g. a video and its audio track) should be concatenated at once. The concat filter will use the duration of the longest stream in each segment (except the last one), and if necessary pad shorter audio streams with silence.

For this filter to work correctly, all segments must start at timestamp 0.

All corresponding streams must have the same parameters in all segments; the filtering system will automatically select a common pixel format for video streams, and a common sample format, sample rate and channel layout for audio streams, but other settings, such as resolution, must be converted explicitly by the user.

Different frame rates are acceptable but will result in variable frame rate at output; be sure to configure the output file to handle it.

Official documentation: concat

ffmpeg.crop(stream, x, y, width, height, **kwargs)

Crop the input video.

Parameters
  • x – The horizontal position, in the input video, of the left edge of the output video.

  • y – The vertical position, in the input video, of the top edge of the output video.

  • width – The width of the output video. Must be greater than 0.

  • height – The height of the output video. Must be greater than 0.

Official documentation: crop

ffmpeg.drawbox(stream, x, y, width, height, color, thickness=None, **kwargs)

Draw a colored box on the input image.

Parameters
  • x – The expression which specifies the top left corner x coordinate of the box. It defaults to 0.

  • y – The expression which specifies the top left corner y coordinate of the box. It defaults to 0.

  • width – Specify the width of the box; if 0 interpreted as the input width. It defaults to 0.

  • height – Specify the height of the box; if 0 interpreted as the input height. It defaults to 0.

  • color – Specify the color of the box to write. For the general syntax of this option, check the “Color” section in the ffmpeg-utils manual. If the special value invert is used, the box edge color is the same as the video with inverted luma.

  • thickness – The expression which sets the thickness of the box edge. Default value is 3.

  • w – Alias for width.

  • h – Alias for height.

  • c – Alias for color.

  • t – Alias for thickness.

Official documentation: drawbox

ffmpeg.drawtext(stream, text=None, x=0, y=0, escape_text=True, **kwargs)

Draw a text string or text from a specified file on top of a video, using the libfreetype library.

To enable compilation of this filter, you need to configure FFmpeg with --enable-libfreetype. To enable default font fallback and the font option you need to configure FFmpeg with --enable-libfontconfig. To enable the text_shaping option, you need to configure FFmpeg with --enable-libfribidi.

Parameters
  • box – Used to draw a box around text using the background color. The value must be either 1 (enable) or 0 (disable). The default value of box is 0.

  • boxborderw – Set the width of the border to be drawn around the box using boxcolor. The default value of boxborderw is 0.

  • boxcolor – The color to be used for drawing box around text. For the syntax of this option, check the “Color” section in the ffmpeg-utils manual. The default value of boxcolor is “white”.

  • line_spacing – Set the line spacing in pixels of the border to be drawn around the box using box. The default value of line_spacing is 0.

  • borderw – Set the width of the border to be drawn around the text using bordercolor. The default value of borderw is 0.

  • bordercolor – Set the color to be used for drawing border around text. For the syntax of this option, check the “Color” section in the ffmpeg-utils manual. The default value of bordercolor is “black”.

  • expansion – Select how the text is expanded. Can be either none, strftime (deprecated) or normal (default). See the Text expansion section below for details.

  • basetime – Set a start time for the count. Value is in microseconds. Only applied in the deprecated strftime expansion mode. To emulate in normal expansion mode use the pts function, supplying the start time (in seconds) as the second argument.

  • fix_bounds – If true, check and fix text coords to avoid clipping.

  • fontcolor – The color to be used for drawing fonts. For the syntax of this option, check the “Color” section in the ffmpeg-utils manual. The default value of fontcolor is “black”.

  • fontcolor_expr – String which is expanded the same way as text to obtain dynamic fontcolor value. By default this option has empty value and is not processed. When this option is set, it overrides fontcolor option.

  • font – The font family to be used for drawing text. By default Sans.

  • fontfile – The font file to be used for drawing text. The path must be included. This parameter is mandatory if the fontconfig support is disabled.

  • alpha – Draw the text applying alpha blending. The value can be a number between 0.0 and 1.0. The expression accepts the same variables x, y as well. The default value is 1. Please see fontcolor_expr.

  • fontsize – The font size to be used for drawing text. The default value of fontsize is 16.

  • text_shaping – If set to 1, attempt to shape the text (for example, reverse the order of right-to-left text and join Arabic characters) before drawing it. Otherwise, just draw the text exactly as given. By default 1 (if supported).

  • ft_load_flags

    The flags to be used for loading the fonts. The flags map the corresponding flags supported by libfreetype, and are a combination of the following values:

    • default

    • no_scale

    • no_hinting

    • render

    • no_bitmap

    • vertical_layout

    • force_autohint

    • crop_bitmap

    • pedantic

    • ignore_global_advance_width

    • no_recurse

    • ignore_transform

    • monochrome

    • linear_design

    • no_autohint

    Default value is “default”. For more information consult the documentation for the FT_LOAD_* libfreetype flags.

  • shadowcolor – The color to be used for drawing a shadow behind the drawn text. For the syntax of this option, check the “Color” section in the ffmpeg-utils manual. The default value of shadowcolor is “black”.

  • shadowx – The x offset for the text shadow position with respect to the position of the text. It can be either positive or negative values. The default value is “0”.

  • shadowy – The y offset for the text shadow position with respect to the position of the text. It can be either positive or negative values. The default value is “0”.

  • start_number – The starting frame number for the n/frame_num variable. The default value is “0”.

  • tabsize – The size in number of spaces to use for rendering the tab. Default value is 4.

  • timecode – Set the initial timecode representation in “hh:mm:ss[:;.]ff” format. It can be used with or without text parameter. timecode_rate option must be specified.

  • rate – Set the timecode frame rate (timecode only).

  • timecode_rate – Alias for rate.

  • r – Alias for rate.

  • tc24hmax – If set to 1, the output of the timecode option will wrap around at 24 hours. Default is 0 (disabled).

  • text – The text string to be drawn. The text must be a sequence of UTF-8 encoded characters. This parameter is mandatory if no file is specified with the parameter textfile.

  • textfile – A text file containing text to be drawn. The text must be a sequence of UTF-8 encoded characters. This parameter is mandatory if no text string is specified with the parameter text. If both text and textfile are specified, an error is thrown.

  • reload – If set to 1, the textfile will be reloaded before each frame. Be sure to update it atomically, or it may be read partially, or even fail.

  • x – The expression which specifies the offset where text will be drawn within the video frame. It is relative to the left border of the output image. The default value is “0”.

  • y – The expression which specifies the offset where text will be drawn within the video frame. It is relative to the top border of the output image. The default value is “0”. See below for the list of accepted constants and functions.

Expression constants:
The parameters for x and y are expressions containing the following constants and functions:
  • dar: input display aspect ratio, it is the same as (w / h) * sar

  • hsub: horizontal chroma subsample values. For example for the pixel format “yuv422p” hsub is 2 and vsub is 1.

  • vsub: vertical chroma subsample values. For example for the pixel format “yuv422p” hsub is 2 and vsub is 1.

  • line_h: the height of each text line

  • lh: Alias for line_h.

  • main_h: the input height

  • h: Alias for main_h.

  • H: Alias for main_h.

  • main_w: the input width

  • w: Alias for main_w.

  • W: Alias for main_w.

  • ascent: the maximum distance from the baseline to the highest/upper grid coordinate used to place a glyph outline point, for all the rendered glyphs. It is a positive value, due to the grid’s orientation with the Y axis upwards.

  • max_glyph_a: Alias for ascent.

  • descent: the maximum distance from the baseline to the lowest grid coordinate used to place a glyph outline point, for all the rendered glyphs. This is a negative value, due to the grid’s orientation, with the Y axis upwards.

  • max_glyph_d: Alias for descent.

  • max_glyph_h: maximum glyph height, that is the maximum height for all the glyphs contained in the rendered text, it is equivalent to ascent - descent.

  • max_glyph_w: maximum glyph width, that is the maximum width for all the glyphs contained in the rendered text.

  • n: the number of input frame, starting from 0

  • rand(min, max): return a random number included between min and max

  • sar: The input sample aspect ratio.

  • t: timestamp expressed in seconds, NAN if the input timestamp is unknown

  • text_h: the height of the rendered text

  • th: Alias for text_h.

  • text_w: the width of the rendered text

  • tw: Alias for text_w.

  • x: the x offset coordinates where the text is drawn.

  • y: the y offset coordinates where the text is drawn.

These parameters allow the x and y expressions to refer each other, so you can for example specify y=x/dar.

Official documentation: drawtext

ffmpeg.filter(stream_spec, filter_name, *args, **kwargs)

Apply custom filter.

filter_ is normally used by higher-level filter functions such as hflip, but if a filter implementation is missing from ffmpeg-python, you can call filter_ directly to have ffmpeg-python pass the filter name and arguments to ffmpeg verbatim.

Parameters
  • stream_spec – a Stream, list of Streams, or label-to-Stream dictionary mapping

  • filter_name – ffmpeg filter name, e.g. colorchannelmixer

  • *args – list of args to pass to ffmpeg verbatim

  • **kwargs – list of keyword-args to pass to ffmpeg verbatim

The function name is suffixed with _ in order avoid confusion with the standard python filter function.

Example

ffmpeg.input('in.mp4').filter('hflip').output('out.mp4').run()

ffmpeg.filter_(stream_spec, filter_name, *args, **kwargs)

Alternate name for filter, so as to not collide with the built-in python filter operator.

ffmpeg.filter_multi_output(stream_spec, filter_name, *args, **kwargs)

Apply custom filter with one or more outputs.

This is the same as filter except that the filter can produce more than one output.

To reference an output stream, use either the .stream operator or bracket shorthand:

Example

` split = ffmpeg.input('in.mp4').filter_multi_output('split') split0 = split.stream(0) split1 = split[1] ffmpeg.concat(split0, split1).output('out.mp4').run() `

ffmpeg.hflip(stream)

Flip the input video horizontally.

Official documentation: hflip

ffmpeg.hue(stream, **kwargs)

Modify the hue and/or the saturation of the input.

Parameters
  • h – Specify the hue angle as a number of degrees. It accepts an expression, and defaults to “0”.

  • s – Specify the saturation in the [-10,10] range. It accepts an expression and defaults to “1”.

  • H – Specify the hue angle as a number of radians. It accepts an expression, and defaults to “0”.

  • b – Specify the brightness in the [-10,10] range. It accepts an expression and defaults to “0”.

Official documentation: hue

ffmpeg.overlay(main_parent_node, overlay_parent_node, eof_action='repeat', **kwargs)

Overlay one video on top of another.

Parameters
  • x – Set the expression for the x coordinates of the overlaid video on the main video. Default value is 0. In case the expression is invalid, it is set to a huge value (meaning that the overlay will not be displayed within the output visible area).

  • y – Set the expression for the y coordinates of the overlaid video on the main video. Default value is 0. In case the expression is invalid, it is set to a huge value (meaning that the overlay will not be displayed within the output visible area).

  • eof_action

    The action to take when EOF is encountered on the secondary input; it accepts one of the following values:

    • repeat: Repeat the last frame (the default).

    • endall: End both streams.

    • pass: Pass the main input through.

  • eval

    Set when the expressions for x, and y are evaluated. It accepts the following values:

    • init: only evaluate expressions once during the filter initialization or when a command is

      processed

    • frame: evaluate expressions for each incoming frame

    Default value is frame.

  • shortest – If set to 1, force the output to terminate when the shortest input terminates. Default value is 0.

  • format

    Set the format for the output video. It accepts the following values:

    • yuv420: force YUV420 output

    • yuv422: force YUV422 output

    • yuv444: force YUV444 output

    • rgb: force packed RGB output

    • gbrp: force planar RGB output

    Default value is yuv420.

  • rgb (deprecated) – If set to 1, force the filter to accept inputs in the RGB color space. Default value is 0. This option is deprecated, use format instead.

  • repeatlast – If set to 1, force the filter to draw the last overlay frame over the main input until the end of the stream. A value of 0 disables this behavior. Default value is 1.

Official documentation: overlay

ffmpeg.setpts(stream, expr)

Change the PTS (presentation timestamp) of the input frames.

Parameters

expr – The expression which is evaluated for each frame to construct its timestamp.

Official documentation: setpts, asetpts

ffmpeg.trim(stream, **kwargs)

Trim the input so that the output contains one continuous subpart of the input.

Parameters
  • start – Specify the time of the start of the kept section, i.e. the frame with the timestamp start will be the first frame in the output.

  • end – Specify the time of the first frame that will be dropped, i.e. the frame immediately preceding the one with the timestamp end will be the last frame in the output.

  • start_pts – This is the same as start, except this option sets the start timestamp in timebase units instead of seconds.

  • end_pts – This is the same as end, except this option sets the end timestamp in timebase units instead of seconds.

  • duration – The maximum duration of the output in seconds.

  • start_frame – The number of the first frame that should be passed to the output.

  • end_frame – The number of the first frame that should be dropped.

Official documentation: trim

ffmpeg.vflip(stream)

Flip the input video vertically.

Official documentation: vflip

ffmpeg.zoompan(stream, **kwargs)

Apply Zoom & Pan effect.

Parameters
  • zoom – Set the zoom expression. Default is 1.

  • x – Set the x expression. Default is 0.

  • y – Set the y expression. Default is 0.

  • d – Set the duration expression in number of frames. This sets for how many number of frames effect will last for single input image.

  • s – Set the output image size, default is hd720.

  • fps – Set the output frame rate, default is 25.

  • z – Alias for zoom.

Official documentation: zoompan

Indices and tables

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Python bindings for FFmpeg"],titleterms:{bind:0,ffmpeg:0,indic:0,python:0,tabl:0}}) ================================================ FILE: doc/src/conf.py ================================================ # -*- coding: utf-8 -*- # # ffmpeg-python documentation build configuration file, created by # sphinx-quickstart on Sat May 27 14:30:53 2017. # # This file is execfile()d with the current directory set to its # containing dir. # # Note that not all possible configuration values are present in this # autogenerated file. # # All configuration values have a default; values that are commented out # serve to show the default. # If extensions (or modules to document with autodoc) are in another directory, # add these directories to sys.path here. If the directory is relative to the # documentation root, use os.path.abspath to make it absolute, like shown here. # import os import sys sys.path.insert(0, os.path.abspath('../..')) # -- General configuration ------------------------------------------------ # If your documentation needs a minimal Sphinx version, state it here. # # needs_sphinx = '1.0' # Add any Sphinx extension module names here, as strings. They can be # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom # ones. extensions = ['sphinx.ext.autodoc', 'sphinx.ext.napoleon'] # Add any paths that contain templates here, relative to this directory. templates_path = ['_templates'] # The suffix(es) of source filenames. # You can specify multiple suffix as a list of string: # # source_suffix = ['.rst', '.md'] source_suffix = '.rst' # The master toctree document. master_doc = 'index' # General information about the project. project = u'ffmpeg-python' copyright = u'2017, Karl Kroening' author = u'Karl Kroening' # The version info for the project you're documenting, acts as replacement for # |version| and |release|, also used in various other places throughout the # built documents. # # The short X.Y version. version = u'' # The full version, including alpha/beta/rc tags. release = u'' # The language for content autogenerated by Sphinx. Refer to documentation # for a list of supported languages. # # This is also used if you do content translation via gettext catalogs. # Usually you set "language" from the command line for these cases. language = None # List of patterns, relative to source directory, that match files and # directories to ignore when looking for source files. # This patterns also effect to html_static_path and html_extra_path exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store'] # The name of the Pygments (syntax highlighting) style to use. pygments_style = 'sphinx' # If true, `todo` and `todoList` produce output, else they produce nothing. todo_include_todos = False # -- Options for HTML output ---------------------------------------------- # The theme to use for HTML and HTML Help pages. See the documentation for # a list of builtin themes. # html_theme = 'nature' # Theme options are theme-specific and customize the look and feel of a theme # further. For a list of options available for each theme, see the # documentation. # # html_theme_options = {} # Add any paths that contain custom static files (such as style sheets) here, # relative to this directory. They are copied after the builtin static files, # so a file named "default.css" will overwrite the builtin "default.css". html_static_path = ['_static'] # -- Options for HTMLHelp output ------------------------------------------ # Output file base name for HTML help builder. htmlhelp_basename = 'ffmpeg-pythondoc' # -- Options for LaTeX output --------------------------------------------- latex_elements = { # The paper size ('letterpaper' or 'a4paper'). # # 'papersize': 'letterpaper', # The font size ('10pt', '11pt' or '12pt'). # # 'pointsize': '10pt', # Additional stuff for the LaTeX preamble. # # 'preamble': '', # Latex figure (float) alignment # # 'figure_align': 'htbp', } # Grouping the document tree into LaTeX files. List of tuples # (source start file, target name, title, # author, documentclass [howto, manual, or own class]). latex_documents = [ (master_doc, 'ffmpeg-python.tex', u'ffmpeg-python Documentation', u'Karl Kroening', 'manual'), ] # -- Options for manual page output --------------------------------------- # One entry per manual page. List of tuples # (source start file, name, description, authors, manual section). man_pages = [ (master_doc, 'ffmpeg-python', u'ffmpeg-python Documentation', [author], 1) ] # -- Options for Texinfo output ------------------------------------------- # Grouping the document tree into Texinfo files. List of tuples # (source start file, target name, title, author, # dir menu entry, description, category) texinfo_documents = [ (master_doc, 'ffmpeg-python', u'ffmpeg-python Documentation', author, 'ffmpeg-python', 'One line description of project.', 'Miscellaneous'), ] ================================================ FILE: doc/src/index.rst ================================================ ffmpeg-python: Python bindings for FFmpeg ========================================= :Github: https://github.com/kkroening/ffmpeg-python .. toctree:: :maxdepth: 2 :caption: Contents: .. automodule:: ffmpeg :members: :undoc-members: :show-inheritance: Indices and tables ================== * :ref:`genindex` * :ref:`modindex` * :ref:`search` ================================================ FILE: doc/update-gh-pages.sh ================================================ #!/usr/bin/env bash set -ex CLONE_URL=$(git remote -v | grep origin | head -n1 | awk '{print $2}') if [ ! -d gh-pages ]; then git clone -b gh-pages ${CLONE_URL} gh-pages else (cd gh-pages && git pull origin gh-pages) fi cd gh-pages rm -rf * touch .nojekyll cp -r ../html/* . git add -A git commit -m 'Update docs' git push origin gh-pages ================================================ FILE: examples/README.md ================================================ # Examples ## [Get video info (ffprobe)](https://github.com/kkroening/ffmpeg-python/blob/master/examples/video_info.py#L15) ```python probe = ffmpeg.probe(args.in_filename) video_stream = next((stream for stream in probe['streams'] if stream['codec_type'] == 'video'), None) width = int(video_stream['width']) height = int(video_stream['height']) ``` ## [Generate thumbnail for video](https://github.com/kkroening/ffmpeg-python/blob/master/examples/get_video_thumbnail.py#L21) get-video-thumbnail graph ```python ( ffmpeg .input(in_filename, ss=time) .filter('scale', width, -1) .output(out_filename, vframes=1) .run() ) ``` ## [Convert video to numpy array](https://github.com/kkroening/ffmpeg-python/blob/master/examples/ffmpeg-numpy.ipynb) ffmpeg-numpy graph ```python out, _ = ( ffmpeg .input('in.mp4') .output('pipe:', format='rawvideo', pix_fmt='rgb24') .run(capture_stdout=True) ) video = ( np .frombuffer(out, np.uint8) .reshape([-1, height, width, 3]) ) ``` ## [Read single video frame as jpeg through pipe](https://github.com/kkroening/ffmpeg-python/blob/master/examples/read_frame_as_jpeg.py#L16) read-frame-as-jpeg graph ```python out, _ = ( ffmpeg .input(in_filename) .filter('select', 'gte(n,{})'.format(frame_num)) .output('pipe:', vframes=1, format='image2', vcodec='mjpeg') .run(capture_stdout=True) ) ``` ## [Convert sound to raw PCM audio](https://github.com/kkroening/ffmpeg-python/blob/master/examples/transcribe.py#L23) transcribe graph ```python out, _ = (ffmpeg .input(in_filename, **input_kwargs) .output('-', format='s16le', acodec='pcm_s16le', ac=1, ar='16k') .overwrite_output() .run(capture_stdout=True) ) ``` ## Assemble video from sequence of frames glob ```python ( ffmpeg .input('/path/to/jpegs/*.jpg', pattern_type='glob', framerate=25) .output('movie.mp4') .run() ) ``` With additional filtering: glob-filter ```python ( ffmpeg .input('/path/to/jpegs/*.jpg', pattern_type='glob', framerate=25) .filter('deflicker', mode='pm', size=10) .filter('scale', size='hd1080', force_original_aspect_ratio='increase') .output('movie.mp4', crf=20, preset='slower', movflags='faststart', pix_fmt='yuv420p') .view(filename='filter_graph') .run() ) ``` ## Audio/video pipeline av-pipeline graph ```python in1 = ffmpeg.input('in1.mp4') in2 = ffmpeg.input('in2.mp4') v1 = in1.video.hflip() a1 = in1.audio v2 = in2.video.filter('reverse').filter('hue', s=0) a2 = in2.audio.filter('areverse').filter('aphaser') joined = ffmpeg.concat(v1, a1, v2, a2, v=1, a=1).node v3 = joined[0] a3 = joined[1].filter('volume', 0.8) out = ffmpeg.output(v3, a3, 'out.mp4') out.run() ``` ## Mono to stereo with offsets and video mono-to-stereo graph ```python audio_left = ( ffmpeg .input('audio-left.wav') .filter('atrim', start=5) .filter('asetpts', 'PTS-STARTPTS') ) audio_right = ( ffmpeg .input('audio-right.wav') .filter('atrim', start=10) .filter('asetpts', 'PTS-STARTPTS') ) input_video = ffmpeg.input('input-video.mp4') ( ffmpeg .filter((audio_left, audio_right), 'join', inputs=2, channel_layout='stereo') .output(input_video.video, 'output-video.mp4', shortest=None, vcodec='copy') .overwrite_output() .run() ) ``` ## [Jupyter Frame Viewer](https://github.com/kkroening/ffmpeg-python/blob/master/examples/ffmpeg-numpy.ipynb) jupyter screenshot ## [Jupyter Stream Editor](https://github.com/kkroening/ffmpeg-python/blob/master/examples/ffmpeg-numpy.ipynb) jupyter demo ## [Tensorflow Streaming](https://github.com/kkroening/ffmpeg-python/blob/master/examples/tensorflow_stream.py) tensorflow streaming; challenge mode: combine this with the webcam example below - Decode input video with ffmpeg - Process video with tensorflow using "deep dream" example - Encode output video with ffmpeg ```python process1 = ( ffmpeg .input(in_filename) .output('pipe:', format='rawvideo', pix_fmt='rgb24', vframes=8) .run_async(pipe_stdout=True) ) process2 = ( ffmpeg .input('pipe:', format='rawvideo', pix_fmt='rgb24', s='{}x{}'.format(width, height)) .output(out_filename, pix_fmt='yuv420p') .overwrite_output() .run_async(pipe_stdin=True) ) while True: in_bytes = process1.stdout.read(width * height * 3) if not in_bytes: break in_frame = ( np .frombuffer(in_bytes, np.uint8) .reshape([height, width, 3]) ) # See examples/tensorflow_stream.py: out_frame = deep_dream.process_frame(in_frame) process2.stdin.write( out_frame .astype(np.uint8) .tobytes() ) process2.stdin.close() process1.wait() process2.wait() ``` deep dream streaming ## [FaceTime webcam input (OS X)](https://github.com/kkroening/ffmpeg-python/blob/master/examples/facetime.py) ```python ( ffmpeg .input('FaceTime', format='avfoundation', pix_fmt='uyvy422', framerate=30) .output('out.mp4', pix_fmt='yuv420p', vframes=100) .run() ) ``` ## Stream from a local video to HTTP server ```python video_format = "flv" server_url = "http://127.0.0.1:8080" process = ( ffmpeg .input("input.mp4") .output( server_url, codec = "copy", # use same codecs of the original video listen=1, # enables HTTP server f=video_format) .global_args("-re") # argument to act as a live stream .run() ) ``` to receive the video you can use ffplay in the terminal: ``` $ ffplay -f flv http://localhost:8080 ``` ## Stream from RTSP server to TCP socket ```python packet_size = 4096 process = ( ffmpeg .input('rtsp://%s:8554/default') .output('-', format='h264') .run_async(pipe_stdout=True) ) while process.poll() is None: packet = process.stdout.read(packet_size) try: tcp_socket.send(packet) except socket.error: process.stdout.close() process.wait() break ``` ================================================ FILE: examples/facetime.py ================================================ import ffmpeg ( ffmpeg .input('FaceTime', format='avfoundation', pix_fmt='uyvy422', framerate=30) .output('out.mp4', pix_fmt='yuv420p', vframes=100) .run() ) ================================================ FILE: examples/ffmpeg-numpy.ipynb ================================================ { "cells": [ { "cell_type": "code", "execution_count": 1, "metadata": {}, "outputs": [], "source": [ "from ipywidgets import interact\n", "from matplotlib import pyplot as plt\n", "import ffmpeg\n", "import ipywidgets as widgets\n", "import numpy as np" ] }, { "cell_type": "code", "execution_count": 2, "metadata": {}, "outputs": [], "source": [ "probe = ffmpeg.probe('in.mp4')\n", "video_info = next(s for s in probe['streams'] if s['codec_type'] == 'video')\n", "width = int(video_info['width'])\n", "height = int(video_info['height'])\n", "num_frames = int(video_info['nb_frames'])" ] }, { "cell_type": "code", "execution_count": 3, "metadata": {}, "outputs": [ { "data": { "application/vnd.jupyter.widget-view+json": { "model_id": "5f63dc164956464c994ec58d86ee7cd9", "version_major": 2, "version_minor": 0 }, "text/plain": [ "interactive(children=(IntSlider(value=0, description='frame', max=209), Output()), _dom_classes=('widget-inter…" ] }, "metadata": {}, "output_type": "display_data" } ], "source": [ "out, err = (\n", " ffmpeg\n", " .input('in.mp4')\n", " .output('pipe:', format='rawvideo', pix_fmt='rgb24')\n", " .run(capture_stdout=True)\n", ")\n", "video = (\n", " np\n", " .frombuffer(out, np.uint8)\n", " .reshape([-1, height, width, 3])\n", ")\n", "\n", "@interact(frame=(0, num_frames))\n", "def show_frame(frame=0):\n", " plt.imshow(video[frame,:,:,:])" ] }, { "cell_type": "code", "execution_count": 4, "metadata": {}, "outputs": [ { "data": { "application/vnd.jupyter.widget-view+json": { "model_id": "84bcac52195f47f8854f09acd7666b84", "version_major": 2, "version_minor": 0 }, "text/plain": [ "interactive(children=(Checkbox(value=True, description='enable_overlay'), Checkbox(value=True, description='en…" ] }, "metadata": {}, "output_type": "display_data" } ], "source": [ "from io import BytesIO\n", "from PIL import Image\n", "\n", "\n", "def extract_frame(stream, frame_num):\n", " while isinstance(stream, ffmpeg.nodes.OutputStream):\n", " stream = stream.node.incoming_edges[0].upstream_node.stream()\n", " out, _ = (\n", " stream\n", " .filter_('select', 'gte(n,{})'.format(frame_num))\n", " .output('pipe:', format='rawvideo', pix_fmt='rgb24', vframes=1)\n", " .run(capture_stdout=True, capture_stderr=True)\n", " )\n", " return np.frombuffer(out, np.uint8).reshape([height, width, 3])\n", "\n", "\n", "def png_to_np(png_bytes):\n", " buffer = BytesIO(png_bytes)\n", " pil_image = Image.open(buffer)\n", " return np.array(pil_image)\n", " \n", "\n", "def build_graph(\n", " enable_overlay, flip_overlay, enable_box, box_x, box_y,\n", " thickness, color):\n", "\n", " stream = ffmpeg.input('in.mp4')\n", "\n", " if enable_overlay:\n", " overlay = ffmpeg.input('overlay.png')\n", " if flip_overlay:\n", " overlay = overlay.hflip()\n", " stream = stream.overlay(overlay)\n", "\n", " if enable_box:\n", " stream = stream.drawbox(\n", " box_x, box_y, 120, 120, color=color, t=thickness)\n", "\n", " return stream.output('out.mp4')\n", "\n", "\n", "def show_image(ax, stream, frame_num):\n", " try:\n", " image = extract_frame(stream, frame_num)\n", " ax.imshow(image)\n", " ax.axis('off')\n", " except ffmpeg.Error as e:\n", " print(e.stderr.decode())\n", "\n", "\n", "def show_graph(ax, stream, detail):\n", " data = ffmpeg.view(stream, detail=detail, pipe=True)\n", " image = png_to_np(data)\n", " ax.imshow(image, aspect='equal', interpolation='hanning')\n", " ax.set_xlim(0, 1100)\n", " ax.axis('off')\n", "\n", "\n", "@interact(\n", " frame_num=(0, num_frames),\n", " box_x=(0, 200),\n", " box_y=(0, 200),\n", " thickness=(1, 40),\n", " color=['red', 'green', 'magenta', 'blue'],\n", ")\n", "def f(\n", " enable_overlay=True,\n", " enable_box=True,\n", " flip_overlay=True,\n", " graph_detail=False,\n", " frame_num=0,\n", " box_x=50,\n", " box_y=50,\n", " thickness=5,\n", " color='red'):\n", "\n", " stream = build_graph(\n", " enable_overlay,\n", " flip_overlay,\n", " enable_box,\n", " box_x,\n", " box_y,\n", " thickness,\n", " color\n", " )\n", "\n", " fig, (ax0, ax1) = plt.subplots(1, 2, figsize=(15,4))\n", " plt.tight_layout()\n", " show_image(ax0, stream, frame_num)\n", " show_graph(ax1, stream, graph_detail)" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [] } ], "metadata": { "kernelspec": { "display_name": "Python 3", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.6.4" } }, "nbformat": 4, "nbformat_minor": 2 } ================================================ FILE: examples/get_video_thumbnail.py ================================================ #!/usr/bin/env python from __future__ import unicode_literals, print_function import argparse import ffmpeg import sys parser = argparse.ArgumentParser(description='Generate video thumbnail') parser.add_argument('in_filename', help='Input filename') parser.add_argument('out_filename', help='Output filename') parser.add_argument( '--time', type=int, default=0.1, help='Time offset') parser.add_argument( '--width', type=int, default=120, help='Width of output thumbnail (height automatically determined by aspect ratio)') def generate_thumbnail(in_filename, out_filename, time, width): try: ( ffmpeg .input(in_filename, ss=time) .filter('scale', width, -1) .output(out_filename, vframes=1) .overwrite_output() .run(capture_stdout=True, capture_stderr=True) ) except ffmpeg.Error as e: print(e.stderr.decode(), file=sys.stderr) sys.exit(1) if __name__ == '__main__': args = parser.parse_args() generate_thumbnail(args.in_filename, args.out_filename, args.time, args.width) ================================================ FILE: examples/read_frame_as_jpeg.py ================================================ #!/usr/bin/env python from __future__ import unicode_literals import argparse import ffmpeg import sys parser = argparse.ArgumentParser( description='Read individual video frame into memory as jpeg and write to stdout') parser.add_argument('in_filename', help='Input filename') parser.add_argument('frame_num', help='Frame number') def read_frame_as_jpeg(in_filename, frame_num): out, err = ( ffmpeg .input(in_filename) .filter('select', 'gte(n,{})'.format(frame_num)) .output('pipe:', vframes=1, format='image2', vcodec='mjpeg') .run(capture_stdout=True) ) return out if __name__ == '__main__': args = parser.parse_args() out = read_frame_as_jpeg(args.in_filename, args.frame_num) sys.stdout.buffer.write(out) ================================================ FILE: examples/requirements.txt ================================================ ffmpeg-python gevent google-cloud-speech graphviz ipywidgets jupyter matplotlib Pillow tqdm ================================================ FILE: examples/show_progress.py ================================================ #!/usr/bin/env python from __future__ import unicode_literals, print_function from tqdm import tqdm import argparse import contextlib import ffmpeg import gevent import gevent.monkey; gevent.monkey.patch_all(thread=False) import os import shutil import socket import sys import tempfile import textwrap parser = argparse.ArgumentParser(description=textwrap.dedent('''\ Process video and report and show progress bar. This is an example of using the ffmpeg `-progress` option with a unix-domain socket to report progress in the form of a progress bar. The video processing simply consists of converting the video to sepia colors, but the same pattern can be applied to other use cases. ''')) parser.add_argument('in_filename', help='Input filename') parser.add_argument('out_filename', help='Output filename') @contextlib.contextmanager def _tmpdir_scope(): tmpdir = tempfile.mkdtemp() try: yield tmpdir finally: shutil.rmtree(tmpdir) def _do_watch_progress(filename, sock, handler): """Function to run in a separate gevent greenlet to read progress events from a unix-domain socket.""" connection, client_address = sock.accept() data = b'' try: while True: more_data = connection.recv(16) if not more_data: break data += more_data lines = data.split(b'\n') for line in lines[:-1]: line = line.decode() parts = line.split('=') key = parts[0] if len(parts) > 0 else None value = parts[1] if len(parts) > 1 else None handler(key, value) data = lines[-1] finally: connection.close() @contextlib.contextmanager def _watch_progress(handler): """Context manager for creating a unix-domain socket and listen for ffmpeg progress events. The socket filename is yielded from the context manager and the socket is closed when the context manager is exited. Args: handler: a function to be called when progress events are received; receives a ``key`` argument and ``value`` argument. (The example ``show_progress`` below uses tqdm) Yields: socket_filename: the name of the socket file. """ with _tmpdir_scope() as tmpdir: socket_filename = os.path.join(tmpdir, 'sock') sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) with contextlib.closing(sock): sock.bind(socket_filename) sock.listen(1) child = gevent.spawn(_do_watch_progress, socket_filename, sock, handler) try: yield socket_filename except: gevent.kill(child) raise @contextlib.contextmanager def show_progress(total_duration): """Create a unix-domain socket to watch progress and render tqdm progress bar.""" with tqdm(total=round(total_duration, 2)) as bar: def handler(key, value): if key == 'out_time_ms': time = round(float(value) / 1000000., 2) bar.update(time - bar.n) elif key == 'progress' and value == 'end': bar.update(bar.total - bar.n) with _watch_progress(handler) as socket_filename: yield socket_filename if __name__ == '__main__': args = parser.parse_args() total_duration = float(ffmpeg.probe(args.in_filename)['format']['duration']) with show_progress(total_duration) as socket_filename: # See https://ffmpeg.org/ffmpeg-filters.html#Examples-44 sepia_values = [.393, .769, .189, 0, .349, .686, .168, 0, .272, .534, .131] try: (ffmpeg .input(args.in_filename) .colorchannelmixer(*sepia_values) .output(args.out_filename) .global_args('-progress', 'unix://{}'.format(socket_filename)) .overwrite_output() .run(capture_stdout=True, capture_stderr=True) ) except ffmpeg.Error as e: print(e.stderr, file=sys.stderr) sys.exit(1) ================================================ FILE: examples/split_silence.py ================================================ #!/usr/bin/env python from __future__ import unicode_literals import argparse import errno import ffmpeg import logging import os import re import subprocess import sys logging.basicConfig(level=logging.INFO, format='%(message)s') logger = logging.getLogger(__file__) logger.setLevel(logging.INFO) DEFAULT_DURATION = 0.3 DEFAULT_THRESHOLD = -60 parser = argparse.ArgumentParser(description='Split media into separate chunks wherever silence occurs') parser.add_argument('in_filename', help='Input filename (`-` for stdin)') parser.add_argument('out_pattern', help='Output filename pattern (e.g. `out/chunk_{:04d}.wav`)') parser.add_argument('--silence-threshold', default=DEFAULT_THRESHOLD, type=int, help='Silence threshold (in dB)') parser.add_argument('--silence-duration', default=DEFAULT_DURATION, type=float, help='Silence duration') parser.add_argument('--start-time', type=float, help='Start time (seconds)') parser.add_argument('--end-time', type=float, help='End time (seconds)') parser.add_argument('-v', dest='verbose', action='store_true', help='Verbose mode') silence_start_re = re.compile(r' silence_start: (?P[0-9]+(\.?[0-9]*))$') silence_end_re = re.compile(r' silence_end: (?P[0-9]+(\.?[0-9]*)) ') total_duration_re = re.compile( r'size=[^ ]+ time=(?P[0-9]{2}):(?P[0-9]{2}):(?P[0-9\.]{5}) bitrate=') def _logged_popen(cmd_line, *args, **kwargs): logger.debug('Running command: {}'.format(subprocess.list2cmdline(cmd_line))) return subprocess.Popen(cmd_line, *args, **kwargs) def get_chunk_times(in_filename, silence_threshold, silence_duration, start_time=None, end_time=None): input_kwargs = {} if start_time is not None: input_kwargs['ss'] = start_time else: start_time = 0. if end_time is not None: input_kwargs['t'] = end_time - start_time p = _logged_popen( (ffmpeg .input(in_filename, **input_kwargs) .filter('silencedetect', n='{}dB'.format(silence_threshold), d=silence_duration) .output('-', format='null') .compile() ) + ['-nostats'], # FIXME: use .nostats() once it's implemented in ffmpeg-python. stderr=subprocess.PIPE ) output = p.communicate()[1].decode('utf-8') if p.returncode != 0: sys.stderr.write(output) sys.exit(1) logger.debug(output) lines = output.splitlines() # Chunks start when silence ends, and chunks end when silence starts. chunk_starts = [] chunk_ends = [] for line in lines: silence_start_match = silence_start_re.search(line) silence_end_match = silence_end_re.search(line) total_duration_match = total_duration_re.search(line) if silence_start_match: chunk_ends.append(float(silence_start_match.group('start'))) if len(chunk_starts) == 0: # Started with non-silence. chunk_starts.append(start_time or 0.) elif silence_end_match: chunk_starts.append(float(silence_end_match.group('end'))) elif total_duration_match: hours = int(total_duration_match.group('hours')) minutes = int(total_duration_match.group('minutes')) seconds = float(total_duration_match.group('seconds')) end_time = hours * 3600 + minutes * 60 + seconds if len(chunk_starts) == 0: # No silence found. chunk_starts.append(start_time) if len(chunk_starts) > len(chunk_ends): # Finished with non-silence. chunk_ends.append(end_time or 10000000.) return list(zip(chunk_starts, chunk_ends)) def _makedirs(path): """Python2-compatible version of ``os.makedirs(path, exist_ok=True)``.""" try: os.makedirs(path) except OSError as exc: if exc.errno != errno.EEXIST or not os.path.isdir(path): raise def split_audio( in_filename, out_pattern, silence_threshold=DEFAULT_THRESHOLD, silence_duration=DEFAULT_DURATION, start_time=None, end_time=None, verbose=False, ): chunk_times = get_chunk_times(in_filename, silence_threshold, silence_duration, start_time, end_time) for i, (start_time, end_time) in enumerate(chunk_times): time = end_time - start_time out_filename = out_pattern.format(i, i=i) _makedirs(os.path.dirname(out_filename)) logger.info('{}: start={:.02f}, end={:.02f}, duration={:.02f}'.format(out_filename, start_time, end_time, time)) _logged_popen( (ffmpeg .input(in_filename, ss=start_time, t=time) .output(out_filename) .overwrite_output() .compile() ), stdout=subprocess.PIPE if not verbose else None, stderr=subprocess.PIPE if not verbose else None, ).communicate() if __name__ == '__main__': kwargs = vars(parser.parse_args()) if kwargs['verbose']: logging.basicConfig(level=logging.DEBUG, format='%(levels): %(message)s') logger.setLevel(logging.DEBUG) split_audio(**kwargs) ================================================ FILE: examples/tensorflow_stream.py ================================================ '''Example streaming ffmpeg numpy processing. Demonstrates using ffmpeg to decode video input, process the frames in python, and then encode video output using ffmpeg. This example uses two ffmpeg processes - one to decode the input video and one to encode an output video - while the raw frame processing is done in python with numpy. At a high level, the signal graph looks like this: (input video) -> [ffmpeg process 1] -> [python] -> [ffmpeg process 2] -> (output video) This example reads/writes video files on the local filesystem, but the same pattern can be used for other kinds of input/output (e.g. webcam, rtmp, etc.). The simplest processing example simply darkens each frame by multiplying the frame's numpy array by a constant value; see ``process_frame_simple``. A more sophisticated example processes each frame with tensorflow using the "deep dream" tensorflow tutorial; activate this mode by calling the script with the optional `--dream` argument. (Make sure tensorflow is installed before running) ''' from __future__ import print_function import argparse import ffmpeg import logging import numpy as np import os import subprocess import zipfile parser = argparse.ArgumentParser(description='Example streaming ffmpeg numpy processing') parser.add_argument('in_filename', help='Input filename') parser.add_argument('out_filename', help='Output filename') parser.add_argument( '--dream', action='store_true', help='Use DeepDream frame processing (requires tensorflow)') logger = logging.getLogger(__name__) logging.basicConfig(level=logging.INFO) def get_video_size(filename): logger.info('Getting video size for {!r}'.format(filename)) probe = ffmpeg.probe(filename) video_info = next(s for s in probe['streams'] if s['codec_type'] == 'video') width = int(video_info['width']) height = int(video_info['height']) return width, height def start_ffmpeg_process1(in_filename): logger.info('Starting ffmpeg process1') args = ( ffmpeg .input(in_filename) .output('pipe:', format='rawvideo', pix_fmt='rgb24') .compile() ) return subprocess.Popen(args, stdout=subprocess.PIPE) def start_ffmpeg_process2(out_filename, width, height): logger.info('Starting ffmpeg process2') args = ( ffmpeg .input('pipe:', format='rawvideo', pix_fmt='rgb24', s='{}x{}'.format(width, height)) .output(out_filename, pix_fmt='yuv420p') .overwrite_output() .compile() ) return subprocess.Popen(args, stdin=subprocess.PIPE) def read_frame(process1, width, height): logger.debug('Reading frame') # Note: RGB24 == 3 bytes per pixel. frame_size = width * height * 3 in_bytes = process1.stdout.read(frame_size) if len(in_bytes) == 0: frame = None else: assert len(in_bytes) == frame_size frame = ( np .frombuffer(in_bytes, np.uint8) .reshape([height, width, 3]) ) return frame def process_frame_simple(frame): '''Simple processing example: darken frame.''' return frame * 0.3 def write_frame(process2, frame): logger.debug('Writing frame') process2.stdin.write( frame .astype(np.uint8) .tobytes() ) def run(in_filename, out_filename, process_frame): width, height = get_video_size(in_filename) process1 = start_ffmpeg_process1(in_filename) process2 = start_ffmpeg_process2(out_filename, width, height) while True: in_frame = read_frame(process1, width, height) if in_frame is None: logger.info('End of input stream') break logger.debug('Processing frame') out_frame = process_frame(in_frame) write_frame(process2, out_frame) logger.info('Waiting for ffmpeg process1') process1.wait() logger.info('Waiting for ffmpeg process2') process2.stdin.close() process2.wait() logger.info('Done') class DeepDream(object): '''DeepDream implementation, adapted from official tensorflow deepdream tutorial: https://github.com/tensorflow/tensorflow/tree/master/tensorflow/examples/tutorials/deepdream Credit: Alexander Mordvintsev ''' _DOWNLOAD_URL = 'https://storage.googleapis.com/download.tensorflow.org/models/inception5h.zip' _ZIP_FILENAME = 'deepdream_model.zip' _MODEL_FILENAME = 'tensorflow_inception_graph.pb' @staticmethod def _download_model(): logger.info('Downloading deepdream model...') try: from urllib.request import urlretrieve # python 3 except ImportError: from urllib import urlretrieve # python 2 urlretrieve(DeepDream._DOWNLOAD_URL, DeepDream._ZIP_FILENAME) logger.info('Extracting deepdream model...') zipfile.ZipFile(DeepDream._ZIP_FILENAME, 'r').extractall('.') @staticmethod def _tffunc(*argtypes): '''Helper that transforms TF-graph generating function into a regular one. See `_resize` function below. ''' placeholders = list(map(tf.placeholder, argtypes)) def wrap(f): out = f(*placeholders) def wrapper(*args, **kw): return out.eval(dict(zip(placeholders, args)), session=kw.get('session')) return wrapper return wrap @staticmethod def _base_resize(img, size): '''Helper function that uses TF to resize an image''' img = tf.expand_dims(img, 0) return tf.image.resize_bilinear(img, size)[0,:,:,:] def __init__(self): if not os.path.exists(DeepDream._MODEL_FILENAME): self._download_model() self._graph = tf.Graph() self._session = tf.InteractiveSession(graph=self._graph) self._resize = self._tffunc(np.float32, np.int32)(self._base_resize) with tf.gfile.FastGFile(DeepDream._MODEL_FILENAME, 'rb') as f: graph_def = tf.GraphDef() graph_def.ParseFromString(f.read()) self._t_input = tf.placeholder(np.float32, name='input') # define the input tensor imagenet_mean = 117.0 t_preprocessed = tf.expand_dims(self._t_input-imagenet_mean, 0) tf.import_graph_def(graph_def, {'input':t_preprocessed}) self.t_obj = self.T('mixed4d_3x3_bottleneck_pre_relu')[:,:,:,139] #self.t_obj = tf.square(self.T('mixed4c')) def T(self, layer_name): '''Helper for getting layer output tensor''' return self._graph.get_tensor_by_name('import/%s:0'%layer_name) def _calc_grad_tiled(self, img, t_grad, tile_size=512): '''Compute the value of tensor t_grad over the image in a tiled way. Random shifts are applied to the image to blur tile boundaries over multiple iterations.''' sz = tile_size h, w = img.shape[:2] sx, sy = np.random.randint(sz, size=2) img_shift = np.roll(np.roll(img, sx, 1), sy, 0) grad = np.zeros_like(img) for y in range(0, max(h-sz//2, sz),sz): for x in range(0, max(w-sz//2, sz),sz): sub = img_shift[y:y+sz,x:x+sz] g = self._session.run(t_grad, {self._t_input:sub}) grad[y:y+sz,x:x+sz] = g return np.roll(np.roll(grad, -sx, 1), -sy, 0) def process_frame(self, frame, iter_n=10, step=1.5, octave_n=4, octave_scale=1.4): t_score = tf.reduce_mean(self.t_obj) # defining the optimization objective t_grad = tf.gradients(t_score, self._t_input)[0] # behold the power of automatic differentiation! # split the image into a number of octaves img = frame octaves = [] for i in range(octave_n-1): hw = img.shape[:2] lo = self._resize(img, np.int32(np.float32(hw)/octave_scale)) hi = img-self._resize(lo, hw) img = lo octaves.append(hi) # generate details octave by octave for octave in range(octave_n): if octave>0: hi = octaves[-octave] img = self._resize(img, hi.shape[:2])+hi for i in range(iter_n): g = self._calc_grad_tiled(img, t_grad) img += g*(step / (np.abs(g).mean()+1e-7)) #print('.',end = ' ') return img if __name__ == '__main__': args = parser.parse_args() if args.dream: import tensorflow as tf process_frame = DeepDream().process_frame else: process_frame = process_frame_simple run(args.in_filename, args.out_filename, process_frame) ================================================ FILE: examples/transcribe.py ================================================ #!/usr/bin/env python from __future__ import unicode_literals, print_function from google.cloud import speech from google.cloud.speech import enums from google.cloud.speech import types import argparse import ffmpeg import logging import sys logging.basicConfig(level=logging.INFO, format='%(message)s') logger = logging.getLogger(__file__) logger.setLevel(logging.INFO) parser = argparse.ArgumentParser(description='Convert speech audio to text using Google Speech API') parser.add_argument('in_filename', help='Input filename (`-` for stdin)') def decode_audio(in_filename, **input_kwargs): try: out, err = (ffmpeg .input(in_filename, **input_kwargs) .output('-', format='s16le', acodec='pcm_s16le', ac=1, ar='16k') .overwrite_output() .run(capture_stdout=True, capture_stderr=True) ) except ffmpeg.Error as e: print(e.stderr, file=sys.stderr) sys.exit(1) return out def get_transcripts(audio_data): client = speech.SpeechClient() audio = types.RecognitionAudio(content=audio_data) config = types.RecognitionConfig( encoding=enums.RecognitionConfig.AudioEncoding.LINEAR16, sample_rate_hertz=16000, language_code='en-US' ) response = client.recognize(config, audio) return [result.alternatives[0].transcript for result in response.results] def transcribe(in_filename): audio_data = decode_audio(in_filename) transcripts = get_transcripts(audio_data) for transcript in transcripts: print(repr(transcript.encode('utf-8'))) if __name__ == '__main__': args = parser.parse_args() transcribe(args.in_filename) ================================================ FILE: examples/video_info.py ================================================ #!/usr/bin/env python from __future__ import unicode_literals, print_function import argparse import ffmpeg import sys parser = argparse.ArgumentParser(description='Get video information') parser.add_argument('in_filename', help='Input filename') if __name__ == '__main__': args = parser.parse_args() try: probe = ffmpeg.probe(args.in_filename) except ffmpeg.Error as e: print(e.stderr, file=sys.stderr) sys.exit(1) video_stream = next((stream for stream in probe['streams'] if stream['codec_type'] == 'video'), None) if video_stream is None: print('No video stream found', file=sys.stderr) sys.exit(1) width = int(video_stream['width']) height = int(video_stream['height']) num_frames = int(video_stream['nb_frames']) print('width: {}'.format(width)) print('height: {}'.format(height)) print('num_frames: {}'.format(num_frames)) ================================================ FILE: ffmpeg/__init__.py ================================================ from __future__ import unicode_literals from . import nodes from . import _ffmpeg from . import _filters from . import _probe from . import _run from . import _view from .nodes import * from ._ffmpeg import * from ._filters import * from ._probe import * from ._run import * from ._view import * __all__ = ( nodes.__all__ + _ffmpeg.__all__ + _probe.__all__ + _run.__all__ + _view.__all__ + _filters.__all__ ) ================================================ FILE: ffmpeg/_ffmpeg.py ================================================ from __future__ import unicode_literals from past.builtins import basestring from ._utils import basestring from .nodes import ( filter_operator, GlobalNode, InputNode, MergeOutputsNode, OutputNode, output_operator, ) def input(filename, **kwargs): """Input file URL (ffmpeg ``-i`` option) Any supplied kwargs are passed to ffmpeg verbatim (e.g. ``t=20``, ``f='mp4'``, ``acodec='pcm'``, etc.). To tell ffmpeg to read from stdin, use ``pipe:`` as the filename. Official documentation: `Main options `__ """ kwargs['filename'] = filename fmt = kwargs.pop('f', None) if fmt: if 'format' in kwargs: raise ValueError("Can't specify both `format` and `f` kwargs") kwargs['format'] = fmt return InputNode(input.__name__, kwargs=kwargs).stream() @output_operator() def global_args(stream, *args): """Add extra global command-line argument(s), e.g. ``-progress``.""" return GlobalNode(stream, global_args.__name__, args).stream() @output_operator() def overwrite_output(stream): """Overwrite output files without asking (ffmpeg ``-y`` option) Official documentation: `Main options `__ """ return GlobalNode(stream, overwrite_output.__name__, ['-y']).stream() @output_operator() def merge_outputs(*streams): """Include all given outputs in one ffmpeg command line""" return MergeOutputsNode(streams, merge_outputs.__name__).stream() @filter_operator() def output(*streams_and_filename, **kwargs): """Output file URL Syntax: `ffmpeg.output(stream1[, stream2, stream3...], filename, **ffmpeg_args)` Any supplied keyword arguments are passed to ffmpeg verbatim (e.g. ``t=20``, ``f='mp4'``, ``acodec='pcm'``, ``vcodec='rawvideo'``, etc.). Some keyword-arguments are handled specially, as shown below. Args: video_bitrate: parameter for ``-b:v``, e.g. ``video_bitrate=1000``. audio_bitrate: parameter for ``-b:a``, e.g. ``audio_bitrate=200``. format: alias for ``-f`` parameter, e.g. ``format='mp4'`` (equivalent to ``f='mp4'``). If multiple streams are provided, they are mapped to the same output. To tell ffmpeg to write to stdout, use ``pipe:`` as the filename. Official documentation: `Synopsis `__ """ streams_and_filename = list(streams_and_filename) if 'filename' not in kwargs: if not isinstance(streams_and_filename[-1], basestring): raise ValueError('A filename must be provided') kwargs['filename'] = streams_and_filename.pop(-1) streams = streams_and_filename fmt = kwargs.pop('f', None) if fmt: if 'format' in kwargs: raise ValueError("Can't specify both `format` and `f` kwargs") kwargs['format'] = fmt return OutputNode(streams, output.__name__, kwargs=kwargs).stream() __all__ = ['input', 'merge_outputs', 'output', 'overwrite_output'] ================================================ FILE: ffmpeg/_filters.py ================================================ from __future__ import unicode_literals from .nodes import FilterNode, filter_operator from ._utils import escape_chars @filter_operator() def filter_multi_output(stream_spec, filter_name, *args, **kwargs): """Apply custom filter with one or more outputs. This is the same as ``filter`` except that the filter can produce more than one output. To reference an output stream, use either the ``.stream`` operator or bracket shorthand: Example: ``` split = ffmpeg.input('in.mp4').filter_multi_output('split') split0 = split.stream(0) split1 = split[1] ffmpeg.concat(split0, split1).output('out.mp4').run() ``` """ return FilterNode( stream_spec, filter_name, args=args, kwargs=kwargs, max_inputs=None ) @filter_operator() def filter(stream_spec, filter_name, *args, **kwargs): """Apply custom filter. ``filter_`` is normally used by higher-level filter functions such as ``hflip``, but if a filter implementation is missing from ``ffmpeg-python``, you can call ``filter_`` directly to have ``ffmpeg-python`` pass the filter name and arguments to ffmpeg verbatim. Args: stream_spec: a Stream, list of Streams, or label-to-Stream dictionary mapping filter_name: ffmpeg filter name, e.g. `colorchannelmixer` *args: list of args to pass to ffmpeg verbatim **kwargs: list of keyword-args to pass to ffmpeg verbatim The function name is suffixed with ``_`` in order avoid confusion with the standard python ``filter`` function. Example: ``ffmpeg.input('in.mp4').filter('hflip').output('out.mp4').run()`` """ return filter_multi_output(stream_spec, filter_name, *args, **kwargs).stream() @filter_operator() def filter_(stream_spec, filter_name, *args, **kwargs): """Alternate name for ``filter``, so as to not collide with the built-in python ``filter`` operator. """ return filter(stream_spec, filter_name, *args, **kwargs) @filter_operator() def split(stream): return FilterNode(stream, split.__name__) @filter_operator() def asplit(stream): return FilterNode(stream, asplit.__name__) @filter_operator() def setpts(stream, expr): """Change the PTS (presentation timestamp) of the input frames. Args: expr: The expression which is evaluated for each frame to construct its timestamp. Official documentation: `setpts, asetpts `__ """ return FilterNode(stream, setpts.__name__, args=[expr]).stream() @filter_operator() def trim(stream, **kwargs): """Trim the input so that the output contains one continuous subpart of the input. Args: start: Specify the time of the start of the kept section, i.e. the frame with the timestamp start will be the first frame in the output. end: Specify the time of the first frame that will be dropped, i.e. the frame immediately preceding the one with the timestamp end will be the last frame in the output. start_pts: This is the same as start, except this option sets the start timestamp in timebase units instead of seconds. end_pts: This is the same as end, except this option sets the end timestamp in timebase units instead of seconds. duration: The maximum duration of the output in seconds. start_frame: The number of the first frame that should be passed to the output. end_frame: The number of the first frame that should be dropped. Official documentation: `trim `__ """ return FilterNode(stream, trim.__name__, kwargs=kwargs).stream() @filter_operator() def overlay(main_parent_node, overlay_parent_node, eof_action='repeat', **kwargs): """Overlay one video on top of another. Args: x: Set the expression for the x coordinates of the overlaid video on the main video. Default value is 0. In case the expression is invalid, it is set to a huge value (meaning that the overlay will not be displayed within the output visible area). y: Set the expression for the y coordinates of the overlaid video on the main video. Default value is 0. In case the expression is invalid, it is set to a huge value (meaning that the overlay will not be displayed within the output visible area). eof_action: The action to take when EOF is encountered on the secondary input; it accepts one of the following values: * ``repeat``: Repeat the last frame (the default). * ``endall``: End both streams. * ``pass``: Pass the main input through. eval: Set when the expressions for x, and y are evaluated. It accepts the following values: * ``init``: only evaluate expressions once during the filter initialization or when a command is processed * ``frame``: evaluate expressions for each incoming frame Default value is ``frame``. shortest: If set to 1, force the output to terminate when the shortest input terminates. Default value is 0. format: Set the format for the output video. It accepts the following values: * ``yuv420``: force YUV420 output * ``yuv422``: force YUV422 output * ``yuv444``: force YUV444 output * ``rgb``: force packed RGB output * ``gbrp``: force planar RGB output Default value is ``yuv420``. rgb (deprecated): If set to 1, force the filter to accept inputs in the RGB color space. Default value is 0. This option is deprecated, use format instead. repeatlast: If set to 1, force the filter to draw the last overlay frame over the main input until the end of the stream. A value of 0 disables this behavior. Default value is 1. Official documentation: `overlay `__ """ kwargs['eof_action'] = eof_action return FilterNode( [main_parent_node, overlay_parent_node], overlay.__name__, kwargs=kwargs, max_inputs=2, ).stream() @filter_operator() def hflip(stream): """Flip the input video horizontally. Official documentation: `hflip `__ """ return FilterNode(stream, hflip.__name__).stream() @filter_operator() def vflip(stream): """Flip the input video vertically. Official documentation: `vflip `__ """ return FilterNode(stream, vflip.__name__).stream() @filter_operator() def crop(stream, x, y, width, height, **kwargs): """Crop the input video. Args: x: The horizontal position, in the input video, of the left edge of the output video. y: The vertical position, in the input video, of the top edge of the output video. width: The width of the output video. Must be greater than 0. height: The height of the output video. Must be greater than 0. Official documentation: `crop `__ """ return FilterNode( stream, crop.__name__, args=[width, height, x, y], kwargs=kwargs ).stream() @filter_operator() def drawbox(stream, x, y, width, height, color, thickness=None, **kwargs): """Draw a colored box on the input image. Args: x: The expression which specifies the top left corner x coordinate of the box. It defaults to 0. y: The expression which specifies the top left corner y coordinate of the box. It defaults to 0. width: Specify the width of the box; if 0 interpreted as the input width. It defaults to 0. height: Specify the height of the box; if 0 interpreted as the input height. It defaults to 0. color: Specify the color of the box to write. For the general syntax of this option, check the "Color" section in the ffmpeg-utils manual. If the special value invert is used, the box edge color is the same as the video with inverted luma. thickness: The expression which sets the thickness of the box edge. Default value is 3. w: Alias for ``width``. h: Alias for ``height``. c: Alias for ``color``. t: Alias for ``thickness``. Official documentation: `drawbox `__ """ if thickness: kwargs['t'] = thickness return FilterNode( stream, drawbox.__name__, args=[x, y, width, height, color], kwargs=kwargs ).stream() @filter_operator() def drawtext(stream, text=None, x=0, y=0, escape_text=True, **kwargs): """Draw a text string or text from a specified file on top of a video, using the libfreetype library. To enable compilation of this filter, you need to configure FFmpeg with ``--enable-libfreetype``. To enable default font fallback and the font option you need to configure FFmpeg with ``--enable-libfontconfig``. To enable the text_shaping option, you need to configure FFmpeg with ``--enable-libfribidi``. Args: box: Used to draw a box around text using the background color. The value must be either 1 (enable) or 0 (disable). The default value of box is 0. boxborderw: Set the width of the border to be drawn around the box using boxcolor. The default value of boxborderw is 0. boxcolor: The color to be used for drawing box around text. For the syntax of this option, check the "Color" section in the ffmpeg-utils manual. The default value of boxcolor is "white". line_spacing: Set the line spacing in pixels of the border to be drawn around the box using box. The default value of line_spacing is 0. borderw: Set the width of the border to be drawn around the text using bordercolor. The default value of borderw is 0. bordercolor: Set the color to be used for drawing border around text. For the syntax of this option, check the "Color" section in the ffmpeg-utils manual. The default value of bordercolor is "black". expansion: Select how the text is expanded. Can be either none, strftime (deprecated) or normal (default). See the Text expansion section below for details. basetime: Set a start time for the count. Value is in microseconds. Only applied in the deprecated strftime expansion mode. To emulate in normal expansion mode use the pts function, supplying the start time (in seconds) as the second argument. fix_bounds: If true, check and fix text coords to avoid clipping. fontcolor: The color to be used for drawing fonts. For the syntax of this option, check the "Color" section in the ffmpeg-utils manual. The default value of fontcolor is "black". fontcolor_expr: String which is expanded the same way as text to obtain dynamic fontcolor value. By default this option has empty value and is not processed. When this option is set, it overrides fontcolor option. font: The font family to be used for drawing text. By default Sans. fontfile: The font file to be used for drawing text. The path must be included. This parameter is mandatory if the fontconfig support is disabled. alpha: Draw the text applying alpha blending. The value can be a number between 0.0 and 1.0. The expression accepts the same variables x, y as well. The default value is 1. Please see fontcolor_expr. fontsize: The font size to be used for drawing text. The default value of fontsize is 16. text_shaping: If set to 1, attempt to shape the text (for example, reverse the order of right-to-left text and join Arabic characters) before drawing it. Otherwise, just draw the text exactly as given. By default 1 (if supported). ft_load_flags: The flags to be used for loading the fonts. The flags map the corresponding flags supported by libfreetype, and are a combination of the following values: * ``default`` * ``no_scale`` * ``no_hinting`` * ``render`` * ``no_bitmap`` * ``vertical_layout`` * ``force_autohint`` * ``crop_bitmap`` * ``pedantic`` * ``ignore_global_advance_width`` * ``no_recurse`` * ``ignore_transform`` * ``monochrome`` * ``linear_design`` * ``no_autohint`` Default value is "default". For more information consult the documentation for the FT_LOAD_* libfreetype flags. shadowcolor: The color to be used for drawing a shadow behind the drawn text. For the syntax of this option, check the "Color" section in the ffmpeg-utils manual. The default value of shadowcolor is "black". shadowx: The x offset for the text shadow position with respect to the position of the text. It can be either positive or negative values. The default value is "0". shadowy: The y offset for the text shadow position with respect to the position of the text. It can be either positive or negative values. The default value is "0". start_number: The starting frame number for the n/frame_num variable. The default value is "0". tabsize: The size in number of spaces to use for rendering the tab. Default value is 4. timecode: Set the initial timecode representation in "hh:mm:ss[:;.]ff" format. It can be used with or without text parameter. timecode_rate option must be specified. rate: Set the timecode frame rate (timecode only). timecode_rate: Alias for ``rate``. r: Alias for ``rate``. tc24hmax: If set to 1, the output of the timecode option will wrap around at 24 hours. Default is 0 (disabled). text: The text string to be drawn. The text must be a sequence of UTF-8 encoded characters. This parameter is mandatory if no file is specified with the parameter textfile. textfile: A text file containing text to be drawn. The text must be a sequence of UTF-8 encoded characters. This parameter is mandatory if no text string is specified with the parameter text. If both text and textfile are specified, an error is thrown. reload: If set to 1, the textfile will be reloaded before each frame. Be sure to update it atomically, or it may be read partially, or even fail. x: The expression which specifies the offset where text will be drawn within the video frame. It is relative to the left border of the output image. The default value is "0". y: The expression which specifies the offset where text will be drawn within the video frame. It is relative to the top border of the output image. The default value is "0". See below for the list of accepted constants and functions. Expression constants: The parameters for x and y are expressions containing the following constants and functions: - dar: input display aspect ratio, it is the same as ``(w / h) * sar`` - hsub: horizontal chroma subsample values. For example for the pixel format "yuv422p" hsub is 2 and vsub is 1. - vsub: vertical chroma subsample values. For example for the pixel format "yuv422p" hsub is 2 and vsub is 1. - line_h: the height of each text line - lh: Alias for ``line_h``. - main_h: the input height - h: Alias for ``main_h``. - H: Alias for ``main_h``. - main_w: the input width - w: Alias for ``main_w``. - W: Alias for ``main_w``. - ascent: the maximum distance from the baseline to the highest/upper grid coordinate used to place a glyph outline point, for all the rendered glyphs. It is a positive value, due to the grid's orientation with the Y axis upwards. - max_glyph_a: Alias for ``ascent``. - descent: the maximum distance from the baseline to the lowest grid coordinate used to place a glyph outline point, for all the rendered glyphs. This is a negative value, due to the grid's orientation, with the Y axis upwards. - max_glyph_d: Alias for ``descent``. - max_glyph_h: maximum glyph height, that is the maximum height for all the glyphs contained in the rendered text, it is equivalent to ascent - descent. - max_glyph_w: maximum glyph width, that is the maximum width for all the glyphs contained in the rendered text. - n: the number of input frame, starting from 0 - rand(min, max): return a random number included between min and max - sar: The input sample aspect ratio. - t: timestamp expressed in seconds, NAN if the input timestamp is unknown - text_h: the height of the rendered text - th: Alias for ``text_h``. - text_w: the width of the rendered text - tw: Alias for ``text_w``. - x: the x offset coordinates where the text is drawn. - y: the y offset coordinates where the text is drawn. These parameters allow the x and y expressions to refer each other, so you can for example specify ``y=x/dar``. Official documentation: `drawtext `__ """ if text is not None: if escape_text: text = escape_chars(text, '\\\'%') kwargs['text'] = text if x != 0: kwargs['x'] = x if y != 0: kwargs['y'] = y return filter(stream, drawtext.__name__, **kwargs) @filter_operator() def concat(*streams, **kwargs): """Concatenate audio and video streams, joining them together one after the other. The filter works on segments of synchronized video and audio streams. All segments must have the same number of streams of each type, and that will also be the number of streams at output. Args: unsafe: Activate unsafe mode: do not fail if segments have a different format. Related streams do not always have exactly the same duration, for various reasons including codec frame size or sloppy authoring. For that reason, related synchronized streams (e.g. a video and its audio track) should be concatenated at once. The concat filter will use the duration of the longest stream in each segment (except the last one), and if necessary pad shorter audio streams with silence. For this filter to work correctly, all segments must start at timestamp 0. All corresponding streams must have the same parameters in all segments; the filtering system will automatically select a common pixel format for video streams, and a common sample format, sample rate and channel layout for audio streams, but other settings, such as resolution, must be converted explicitly by the user. Different frame rates are acceptable but will result in variable frame rate at output; be sure to configure the output file to handle it. Official documentation: `concat `__ """ video_stream_count = kwargs.get('v', 1) audio_stream_count = kwargs.get('a', 0) stream_count = video_stream_count + audio_stream_count if len(streams) % stream_count != 0: raise ValueError( 'Expected concat input streams to have length multiple of {} (v={}, a={}); got {}'.format( stream_count, video_stream_count, audio_stream_count, len(streams) ) ) kwargs['n'] = int(len(streams) / stream_count) return FilterNode(streams, concat.__name__, kwargs=kwargs, max_inputs=None).stream() @filter_operator() def zoompan(stream, **kwargs): """Apply Zoom & Pan effect. Args: zoom: Set the zoom expression. Default is 1. x: Set the x expression. Default is 0. y: Set the y expression. Default is 0. d: Set the duration expression in number of frames. This sets for how many number of frames effect will last for single input image. s: Set the output image size, default is ``hd720``. fps: Set the output frame rate, default is 25. z: Alias for ``zoom``. Official documentation: `zoompan `__ """ return FilterNode(stream, zoompan.__name__, kwargs=kwargs).stream() @filter_operator() def hue(stream, **kwargs): """Modify the hue and/or the saturation of the input. Args: h: Specify the hue angle as a number of degrees. It accepts an expression, and defaults to "0". s: Specify the saturation in the [-10,10] range. It accepts an expression and defaults to "1". H: Specify the hue angle as a number of radians. It accepts an expression, and defaults to "0". b: Specify the brightness in the [-10,10] range. It accepts an expression and defaults to "0". Official documentation: `hue `__ """ return FilterNode(stream, hue.__name__, kwargs=kwargs).stream() @filter_operator() def colorchannelmixer(stream, *args, **kwargs): """Adjust video input frames by re-mixing color channels. Official documentation: `colorchannelmixer `__ """ return FilterNode(stream, colorchannelmixer.__name__, kwargs=kwargs).stream() __all__ = [ 'colorchannelmixer', 'concat', 'crop', 'drawbox', 'drawtext', 'filter', 'filter_', 'filter_multi_output', 'hflip', 'hue', 'overlay', 'setpts', 'trim', 'vflip', 'zoompan', ] ================================================ FILE: ffmpeg/_probe.py ================================================ import json import subprocess from ._run import Error from ._utils import convert_kwargs_to_cmd_line_args def probe(filename, cmd='ffprobe', timeout=None, **kwargs): """Run ffprobe on the specified file and return a JSON representation of the output. Raises: :class:`ffmpeg.Error`: if ffprobe returns a non-zero exit code, an :class:`Error` is returned with a generic error message. The stderr output can be retrieved by accessing the ``stderr`` property of the exception. """ args = [cmd, '-show_format', '-show_streams', '-of', 'json'] args += convert_kwargs_to_cmd_line_args(kwargs) args += [filename] p = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE) communicate_kwargs = {} if timeout is not None: communicate_kwargs['timeout'] = timeout out, err = p.communicate(**communicate_kwargs) if p.returncode != 0: raise Error('ffprobe', out, err) return json.loads(out.decode('utf-8')) __all__ = ['probe'] ================================================ FILE: ffmpeg/_run.py ================================================ from __future__ import unicode_literals from .dag import get_outgoing_edges, topo_sort from ._utils import basestring, convert_kwargs_to_cmd_line_args from builtins import str from functools import reduce import copy import operator import subprocess from ._ffmpeg import input, output from .nodes import ( get_stream_spec_nodes, FilterNode, GlobalNode, InputNode, OutputNode, output_operator, ) try: from collections.abc import Iterable except ImportError: from collections import Iterable class Error(Exception): def __init__(self, cmd, stdout, stderr): super(Error, self).__init__( '{} error (see stderr output for detail)'.format(cmd) ) self.stdout = stdout self.stderr = stderr def _get_input_args(input_node): if input_node.name == input.__name__: kwargs = copy.copy(input_node.kwargs) filename = kwargs.pop('filename') fmt = kwargs.pop('format', None) video_size = kwargs.pop('video_size', None) args = [] if fmt: args += ['-f', fmt] if video_size: args += ['-video_size', '{}x{}'.format(video_size[0], video_size[1])] args += convert_kwargs_to_cmd_line_args(kwargs) args += ['-i', filename] else: raise ValueError('Unsupported input node: {}'.format(input_node)) return args def _format_input_stream_name(stream_name_map, edge, is_final_arg=False): prefix = stream_name_map[edge.upstream_node, edge.upstream_label] if not edge.upstream_selector: suffix = '' else: suffix = ':{}'.format(edge.upstream_selector) if is_final_arg and isinstance(edge.upstream_node, InputNode): ## Special case: `-map` args should not have brackets for input ## nodes. fmt = '{}{}' else: fmt = '[{}{}]' return fmt.format(prefix, suffix) def _format_output_stream_name(stream_name_map, edge): return '[{}]'.format(stream_name_map[edge.upstream_node, edge.upstream_label]) def _get_filter_spec(node, outgoing_edge_map, stream_name_map): incoming_edges = node.incoming_edges outgoing_edges = get_outgoing_edges(node, outgoing_edge_map) inputs = [ _format_input_stream_name(stream_name_map, edge) for edge in incoming_edges ] outputs = [ _format_output_stream_name(stream_name_map, edge) for edge in outgoing_edges ] filter_spec = '{}{}{}'.format( ''.join(inputs), node._get_filter(outgoing_edges), ''.join(outputs) ) return filter_spec def _allocate_filter_stream_names(filter_nodes, outgoing_edge_maps, stream_name_map): stream_count = 0 for upstream_node in filter_nodes: outgoing_edge_map = outgoing_edge_maps[upstream_node] for upstream_label, downstreams in sorted(outgoing_edge_map.items()): if len(downstreams) > 1: # TODO: automatically insert `splits` ahead of time via graph transformation. raise ValueError( 'Encountered {} with multiple outgoing edges with same upstream ' 'label {!r}; a `split` filter is probably required'.format( upstream_node, upstream_label ) ) stream_name_map[upstream_node, upstream_label] = 's{}'.format(stream_count) stream_count += 1 def _get_filter_arg(filter_nodes, outgoing_edge_maps, stream_name_map): _allocate_filter_stream_names(filter_nodes, outgoing_edge_maps, stream_name_map) filter_specs = [ _get_filter_spec(node, outgoing_edge_maps[node], stream_name_map) for node in filter_nodes ] return ';'.join(filter_specs) def _get_global_args(node): return list(node.args) def _get_output_args(node, stream_name_map): if node.name != output.__name__: raise ValueError('Unsupported output node: {}'.format(node)) args = [] if len(node.incoming_edges) == 0: raise ValueError('Output node {} has no mapped streams'.format(node)) for edge in node.incoming_edges: # edge = node.incoming_edges[0] stream_name = _format_input_stream_name( stream_name_map, edge, is_final_arg=True ) if stream_name != '0' or len(node.incoming_edges) > 1: args += ['-map', stream_name] kwargs = copy.copy(node.kwargs) filename = kwargs.pop('filename') if 'format' in kwargs: args += ['-f', kwargs.pop('format')] if 'video_bitrate' in kwargs: args += ['-b:v', str(kwargs.pop('video_bitrate'))] if 'audio_bitrate' in kwargs: args += ['-b:a', str(kwargs.pop('audio_bitrate'))] if 'video_size' in kwargs: video_size = kwargs.pop('video_size') if not isinstance(video_size, basestring) and isinstance(video_size, Iterable): video_size = '{}x{}'.format(video_size[0], video_size[1]) args += ['-video_size', video_size] args += convert_kwargs_to_cmd_line_args(kwargs) args += [filename] return args @output_operator() def get_args(stream_spec, overwrite_output=False): """Build command-line arguments to be passed to ffmpeg.""" nodes = get_stream_spec_nodes(stream_spec) args = [] # TODO: group nodes together, e.g. `-i somefile -r somerate`. sorted_nodes, outgoing_edge_maps = topo_sort(nodes) input_nodes = [node for node in sorted_nodes if isinstance(node, InputNode)] output_nodes = [node for node in sorted_nodes if isinstance(node, OutputNode)] global_nodes = [node for node in sorted_nodes if isinstance(node, GlobalNode)] filter_nodes = [node for node in sorted_nodes if isinstance(node, FilterNode)] stream_name_map = {(node, None): str(i) for i, node in enumerate(input_nodes)} filter_arg = _get_filter_arg(filter_nodes, outgoing_edge_maps, stream_name_map) args += reduce(operator.add, [_get_input_args(node) for node in input_nodes]) if filter_arg: args += ['-filter_complex', filter_arg] args += reduce( operator.add, [_get_output_args(node, stream_name_map) for node in output_nodes] ) args += reduce(operator.add, [_get_global_args(node) for node in global_nodes], []) if overwrite_output: args += ['-y'] return args @output_operator() def compile(stream_spec, cmd='ffmpeg', overwrite_output=False): """Build command-line for invoking ffmpeg. The :meth:`run` function uses this to build the command line arguments and should work in most cases, but calling this function directly is useful for debugging or if you need to invoke ffmpeg manually for whatever reason. This is the same as calling :meth:`get_args` except that it also includes the ``ffmpeg`` command as the first argument. """ if isinstance(cmd, basestring): cmd = [cmd] elif type(cmd) != list: cmd = list(cmd) return cmd + get_args(stream_spec, overwrite_output=overwrite_output) @output_operator() def run_async( stream_spec, cmd='ffmpeg', pipe_stdin=False, pipe_stdout=False, pipe_stderr=False, quiet=False, overwrite_output=False, cwd=None, ): """Asynchronously invoke ffmpeg for the supplied node graph. Args: pipe_stdin: if True, connect pipe to subprocess stdin (to be used with ``pipe:`` ffmpeg inputs). pipe_stdout: if True, connect pipe to subprocess stdout (to be used with ``pipe:`` ffmpeg outputs). pipe_stderr: if True, connect pipe to subprocess stderr. quiet: shorthand for setting ``capture_stdout`` and ``capture_stderr``. **kwargs: keyword-arguments passed to ``get_args()`` (e.g. ``overwrite_output=True``). Returns: A `subprocess Popen`_ object representing the child process. Examples: Run and stream input:: process = ( ffmpeg .input('pipe:', format='rawvideo', pix_fmt='rgb24', s='{}x{}'.format(width, height)) .output(out_filename, pix_fmt='yuv420p') .overwrite_output() .run_async(pipe_stdin=True) ) process.communicate(input=input_data) Run and capture output:: process = ( ffmpeg .input(in_filename) .output('pipe:', format='rawvideo', pix_fmt='rgb24') .run_async(pipe_stdout=True, pipe_stderr=True) ) out, err = process.communicate() Process video frame-by-frame using numpy:: process1 = ( ffmpeg .input(in_filename) .output('pipe:', format='rawvideo', pix_fmt='rgb24') .run_async(pipe_stdout=True) ) process2 = ( ffmpeg .input('pipe:', format='rawvideo', pix_fmt='rgb24', s='{}x{}'.format(width, height)) .output(out_filename, pix_fmt='yuv420p') .overwrite_output() .run_async(pipe_stdin=True) ) while True: in_bytes = process1.stdout.read(width * height * 3) if not in_bytes: break in_frame = ( np .frombuffer(in_bytes, np.uint8) .reshape([height, width, 3]) ) out_frame = in_frame * 0.3 process2.stdin.write( frame .astype(np.uint8) .tobytes() ) process2.stdin.close() process1.wait() process2.wait() .. _subprocess Popen: https://docs.python.org/3/library/subprocess.html#popen-objects """ args = compile(stream_spec, cmd, overwrite_output=overwrite_output) stdin_stream = subprocess.PIPE if pipe_stdin else None stdout_stream = subprocess.PIPE if pipe_stdout else None stderr_stream = subprocess.PIPE if pipe_stderr else None if quiet: stderr_stream = subprocess.STDOUT stdout_stream = subprocess.DEVNULL return subprocess.Popen( args, stdin=stdin_stream, stdout=stdout_stream, stderr=stderr_stream, cwd=cwd, ) @output_operator() def run( stream_spec, cmd='ffmpeg', capture_stdout=False, capture_stderr=False, input=None, quiet=False, overwrite_output=False, cwd=None, ): """Invoke ffmpeg for the supplied node graph. Args: capture_stdout: if True, capture stdout (to be used with ``pipe:`` ffmpeg outputs). capture_stderr: if True, capture stderr. quiet: shorthand for setting ``capture_stdout`` and ``capture_stderr``. input: text to be sent to stdin (to be used with ``pipe:`` ffmpeg inputs) **kwargs: keyword-arguments passed to ``get_args()`` (e.g. ``overwrite_output=True``). Returns: (out, err) tuple containing captured stdout and stderr data. """ process = run_async( stream_spec, cmd, pipe_stdin=input is not None, pipe_stdout=capture_stdout, pipe_stderr=capture_stderr, quiet=quiet, overwrite_output=overwrite_output, cwd=cwd, ) out, err = process.communicate(input) retcode = process.poll() if retcode: raise Error('ffmpeg', out, err) return out, err __all__ = [ 'compile', 'Error', 'get_args', 'run', 'run_async', ] ================================================ FILE: ffmpeg/_utils.py ================================================ from __future__ import unicode_literals from builtins import str from past.builtins import basestring import hashlib import sys if sys.version_info.major == 2: # noinspection PyUnresolvedReferences,PyShadowingBuiltins str = str try: from collections.abc import Iterable except ImportError: from collections import Iterable # `past.builtins.basestring` module can't be imported on Python3 in some environments (Ubuntu). # This code is copy-pasted from it to avoid crashes. class BaseBaseString(type): def __instancecheck__(cls, instance): return isinstance(instance, (bytes, str)) def __subclasshook__(cls, thing): # TODO: What should go here? raise NotImplemented def with_metaclass(meta, *bases): class metaclass(meta): __call__ = type.__call__ __init__ = type.__init__ def __new__(cls, name, this_bases, d): if this_bases is None: return type.__new__(cls, name, (), d) return meta(name, bases, d) return metaclass('temporary_class', None, {}) if sys.version_info.major >= 3: class basestring(with_metaclass(BaseBaseString)): pass else: # noinspection PyUnresolvedReferences,PyCompatibility from builtins import basestring def _recursive_repr(item): """Hack around python `repr` to deterministically represent dictionaries. This is able to represent more things than json.dumps, since it does not require things to be JSON serializable (e.g. datetimes). """ if isinstance(item, basestring): result = str(item) elif isinstance(item, list): result = '[{}]'.format(', '.join([_recursive_repr(x) for x in item])) elif isinstance(item, dict): kv_pairs = [ '{}: {}'.format(_recursive_repr(k), _recursive_repr(item[k])) for k in sorted(item) ] result = '{' + ', '.join(kv_pairs) + '}' else: result = repr(item) return result def get_hash(item): repr_ = _recursive_repr(item).encode('utf-8') return hashlib.md5(repr_).hexdigest() def get_hash_int(item): return int(get_hash(item), base=16) def escape_chars(text, chars): """Helper function to escape uncomfortable characters.""" text = str(text) chars = list(set(chars)) if '\\' in chars: chars.remove('\\') chars.insert(0, '\\') for ch in chars: text = text.replace(ch, '\\' + ch) return text def convert_kwargs_to_cmd_line_args(kwargs): """Helper function to build command line arguments out of dict.""" args = [] for k in sorted(kwargs.keys()): v = kwargs[k] if isinstance(v, Iterable) and not isinstance(v, str): for value in v: args.append('-{}'.format(k)) if value is not None: args.append('{}'.format(value)) continue args.append('-{}'.format(k)) if v is not None: args.append('{}'.format(v)) return args ================================================ FILE: ffmpeg/_view.py ================================================ from __future__ import unicode_literals from builtins import str from .dag import get_outgoing_edges from ._run import topo_sort import tempfile from ffmpeg.nodes import ( FilterNode, get_stream_spec_nodes, InputNode, OutputNode, stream_operator, ) _RIGHT_ARROW = '\u2192' def _get_node_color(node): if isinstance(node, InputNode): color = '#99cc00' elif isinstance(node, OutputNode): color = '#99ccff' elif isinstance(node, FilterNode): color = '#ffcc00' else: color = None return color @stream_operator() def view(stream_spec, detail=False, filename=None, pipe=False, **kwargs): try: import graphviz except ImportError: raise ImportError( 'failed to import graphviz; please make sure graphviz is installed (e.g. ' '`pip install graphviz`)' ) show_labels = kwargs.pop('show_labels', True) if pipe and filename is not None: raise ValueError('Can\'t specify both `filename` and `pipe`') elif not pipe and filename is None: filename = tempfile.mktemp() nodes = get_stream_spec_nodes(stream_spec) sorted_nodes, outgoing_edge_maps = topo_sort(nodes) graph = graphviz.Digraph(format='png') graph.attr(rankdir='LR') if len(list(kwargs.keys())) != 0: raise ValueError( 'Invalid kwargs key(s): {}'.format(', '.join(list(kwargs.keys()))) ) for node in sorted_nodes: color = _get_node_color(node) if detail: lines = [node.short_repr] lines += ['{!r}'.format(arg) for arg in node.args] lines += [ '{}={!r}'.format(key, node.kwargs[key]) for key in sorted(node.kwargs) ] node_text = '\n'.join(lines) else: node_text = node.short_repr graph.node( str(hash(node)), node_text, shape='box', style='filled', fillcolor=color ) outgoing_edge_map = outgoing_edge_maps.get(node, {}) for edge in get_outgoing_edges(node, outgoing_edge_map): kwargs = {} up_label = edge.upstream_label down_label = edge.downstream_label up_selector = edge.upstream_selector if show_labels and ( up_label is not None or down_label is not None or up_selector is not None ): if up_label is None: up_label = '' if up_selector is not None: up_label += ":" + up_selector if down_label is None: down_label = '' if up_label != '' and down_label != '': middle = ' {} '.format(_RIGHT_ARROW) else: middle = '' kwargs['label'] = '{} {} {}'.format(up_label, middle, down_label) upstream_node_id = str(hash(edge.upstream_node)) downstream_node_id = str(hash(edge.downstream_node)) graph.edge(upstream_node_id, downstream_node_id, **kwargs) if pipe: return graph.pipe() else: graph.view(filename, cleanup=True) return stream_spec __all__ = ['view'] ================================================ FILE: ffmpeg/dag.py ================================================ from __future__ import unicode_literals from ._utils import get_hash, get_hash_int from builtins import object from collections import namedtuple class DagNode(object): """Node in a directed-acyclic graph (DAG). Edges: DagNodes are connected by edges. An edge connects two nodes with a label for each side: - ``upstream_node``: upstream/parent node - ``upstream_label``: label on the outgoing side of the upstream node - ``downstream_node``: downstream/child node - ``downstream_label``: label on the incoming side of the downstream node For example, DagNode A may be connected to DagNode B with an edge labelled "foo" on A's side, and "bar" on B's side: _____ _____ | | | | | A >[foo]---[bar]> B | |_____| |_____| Edge labels may be integers or strings, and nodes cannot have more than one incoming edge with the same label. DagNodes may have any number of incoming edges and any number of outgoing edges. DagNodes keep track only of their incoming edges, but the entire graph structure can be inferred by looking at the furthest downstream nodes and working backwards. Hashing: DagNodes must be hashable, and two nodes are considered to be equivalent if they have the same hash value. Nodes are immutable, and the hash should remain constant as a result. If a node with new contents is required, create a new node and throw the old one away. String representation: In order for graph visualization tools to show useful information, nodes must be representable as strings. The ``repr`` operator should provide a more or less "full" representation of the node, and the ``short_repr`` property should be a shortened, concise representation. Again, because nodes are immutable, the string representations should remain constant. """ def __hash__(self): """Return an integer hash of the node.""" raise NotImplementedError() def __eq__(self, other): """Compare two nodes; implementations should return True if (and only if) hashes match. """ raise NotImplementedError() def __repr__(self, other): """Return a full string representation of the node.""" raise NotImplementedError() @property def short_repr(self): """Return a partial/concise representation of the node.""" raise NotImplementedError() @property def incoming_edge_map(self): """Provides information about all incoming edges that connect to this node. The edge map is a dictionary that maps an ``incoming_label`` to ``(outgoing_node, outgoing_label)``. Note that implicitly, ``incoming_node`` is ``self``. See "Edges" section above. """ raise NotImplementedError() DagEdge = namedtuple( 'DagEdge', [ 'downstream_node', 'downstream_label', 'upstream_node', 'upstream_label', 'upstream_selector', ], ) def get_incoming_edges(downstream_node, incoming_edge_map): edges = [] for downstream_label, upstream_info in list(incoming_edge_map.items()): upstream_node, upstream_label, upstream_selector = upstream_info edges += [ DagEdge( downstream_node, downstream_label, upstream_node, upstream_label, upstream_selector, ) ] return edges def get_outgoing_edges(upstream_node, outgoing_edge_map): edges = [] for upstream_label, downstream_infos in sorted(outgoing_edge_map.items()): for downstream_info in downstream_infos: downstream_node, downstream_label, downstream_selector = downstream_info edges += [ DagEdge( downstream_node, downstream_label, upstream_node, upstream_label, downstream_selector, ) ] return edges class KwargReprNode(DagNode): """A DagNode that can be represented as a set of args+kwargs.""" @property def __upstream_hashes(self): hashes = [] for downstream_label, upstream_info in list(self.incoming_edge_map.items()): upstream_node, upstream_label, upstream_selector = upstream_info hashes += [ hash(x) for x in [ downstream_label, upstream_node, upstream_label, upstream_selector, ] ] return hashes @property def __inner_hash(self): props = {'args': self.args, 'kwargs': self.kwargs} return get_hash(props) def __get_hash(self): hashes = self.__upstream_hashes + [self.__inner_hash] return get_hash_int(hashes) def __init__(self, incoming_edge_map, name, args, kwargs): self.__incoming_edge_map = incoming_edge_map self.name = name self.args = args self.kwargs = kwargs self.__hash = self.__get_hash() def __hash__(self): return self.__hash def __eq__(self, other): return hash(self) == hash(other) @property def short_hash(self): return '{:x}'.format(abs(hash(self)))[:12] def long_repr(self, include_hash=True): formatted_props = ['{!r}'.format(arg) for arg in self.args] formatted_props += [ '{}={!r}'.format(key, self.kwargs[key]) for key in sorted(self.kwargs) ] out = '{}({})'.format(self.name, ', '.join(formatted_props)) if include_hash: out += ' <{}>'.format(self.short_hash) return out def __repr__(self): return self.long_repr() @property def incoming_edges(self): return get_incoming_edges(self, self.incoming_edge_map) @property def incoming_edge_map(self): return self.__incoming_edge_map @property def short_repr(self): return self.name def topo_sort(downstream_nodes): marked_nodes = [] sorted_nodes = [] outgoing_edge_maps = {} def visit( upstream_node, upstream_label, downstream_node, downstream_label, downstream_selector=None, ): if upstream_node in marked_nodes: raise RuntimeError('Graph is not a DAG') if downstream_node is not None: outgoing_edge_map = outgoing_edge_maps.get(upstream_node, {}) outgoing_edge_infos = outgoing_edge_map.get(upstream_label, []) outgoing_edge_infos += [ (downstream_node, downstream_label, downstream_selector) ] outgoing_edge_map[upstream_label] = outgoing_edge_infos outgoing_edge_maps[upstream_node] = outgoing_edge_map if upstream_node not in sorted_nodes: marked_nodes.append(upstream_node) for edge in upstream_node.incoming_edges: visit( edge.upstream_node, edge.upstream_label, edge.downstream_node, edge.downstream_label, edge.upstream_selector, ) marked_nodes.remove(upstream_node) sorted_nodes.append(upstream_node) unmarked_nodes = [(node, None) for node in downstream_nodes] while unmarked_nodes: upstream_node, upstream_label = unmarked_nodes.pop() visit(upstream_node, upstream_label, None, None) return sorted_nodes, outgoing_edge_maps ================================================ FILE: ffmpeg/nodes.py ================================================ from __future__ import unicode_literals from past.builtins import basestring from .dag import KwargReprNode from ._utils import escape_chars, get_hash_int from builtins import object import os def _is_of_types(obj, types): valid = False for stream_type in types: if isinstance(obj, stream_type): valid = True break return valid def _get_types_str(types): return ', '.join(['{}.{}'.format(x.__module__, x.__name__) for x in types]) class Stream(object): """Represents the outgoing edge of an upstream node; may be used to create more downstream nodes. """ def __init__( self, upstream_node, upstream_label, node_types, upstream_selector=None ): if not _is_of_types(upstream_node, node_types): raise TypeError( 'Expected upstream node to be of one of the following type(s): {}; got {}'.format( _get_types_str(node_types), type(upstream_node) ) ) self.node = upstream_node self.label = upstream_label self.selector = upstream_selector def __hash__(self): return get_hash_int([hash(self.node), hash(self.label)]) def __eq__(self, other): return hash(self) == hash(other) def __repr__(self): node_repr = self.node.long_repr(include_hash=False) selector = '' if self.selector: selector = ':{}'.format(self.selector) out = '{}[{!r}{}] <{}>'.format( node_repr, self.label, selector, self.node.short_hash ) return out def __getitem__(self, index): """ Select a component (audio, video) of the stream. Example: Process the audio and video portions of a stream independently:: input = ffmpeg.input('in.mp4') audio = input['a'].filter("aecho", 0.8, 0.9, 1000, 0.3) video = input['v'].hflip() out = ffmpeg.output(audio, video, 'out.mp4') """ if self.selector is not None: raise ValueError('Stream already has a selector: {}'.format(self)) elif not isinstance(index, basestring): raise TypeError("Expected string index (e.g. 'a'); got {!r}".format(index)) return self.node.stream(label=self.label, selector=index) @property def audio(self): """Select the audio-portion of a stream. Some ffmpeg filters drop audio streams, and care must be taken to preserve the audio in the final output. The ``.audio`` and ``.video`` operators can be used to reference the audio/video portions of a stream so that they can be processed separately and then re-combined later in the pipeline. This dilemma is intrinsic to ffmpeg, and ffmpeg-python tries to stay out of the way while users may refer to the official ffmpeg documentation as to why certain filters drop audio. ``stream.audio`` is a shorthand for ``stream['a']``. Example: Process the audio and video portions of a stream independently:: input = ffmpeg.input('in.mp4') audio = input.audio.filter("aecho", 0.8, 0.9, 1000, 0.3) video = input.video.hflip() out = ffmpeg.output(audio, video, 'out.mp4') """ return self['a'] @property def video(self): """Select the video-portion of a stream. Some ffmpeg filters drop audio streams, and care must be taken to preserve the audio in the final output. The ``.audio`` and ``.video`` operators can be used to reference the audio/video portions of a stream so that they can be processed separately and then re-combined later in the pipeline. This dilemma is intrinsic to ffmpeg, and ffmpeg-python tries to stay out of the way while users may refer to the official ffmpeg documentation as to why certain filters drop audio. ``stream.video`` is a shorthand for ``stream['v']``. Example: Process the audio and video portions of a stream independently:: input = ffmpeg.input('in.mp4') audio = input.audio.filter("aecho", 0.8, 0.9, 1000, 0.3) video = input.video.hflip() out = ffmpeg.output(audio, video, 'out.mp4') """ return self['v'] def get_stream_map(stream_spec): if stream_spec is None: stream_map = {} elif isinstance(stream_spec, Stream): stream_map = {None: stream_spec} elif isinstance(stream_spec, (list, tuple)): stream_map = dict(enumerate(stream_spec)) elif isinstance(stream_spec, dict): stream_map = stream_spec return stream_map def get_stream_map_nodes(stream_map): nodes = [] for stream in list(stream_map.values()): if not isinstance(stream, Stream): raise TypeError('Expected Stream; got {}'.format(type(stream))) nodes.append(stream.node) return nodes def get_stream_spec_nodes(stream_spec): stream_map = get_stream_map(stream_spec) return get_stream_map_nodes(stream_map) class Node(KwargReprNode): """Node base""" @classmethod def __check_input_len(cls, stream_map, min_inputs, max_inputs): if min_inputs is not None and len(stream_map) < min_inputs: raise ValueError( 'Expected at least {} input stream(s); got {}'.format( min_inputs, len(stream_map) ) ) elif max_inputs is not None and len(stream_map) > max_inputs: raise ValueError( 'Expected at most {} input stream(s); got {}'.format( max_inputs, len(stream_map) ) ) @classmethod def __check_input_types(cls, stream_map, incoming_stream_types): for stream in list(stream_map.values()): if not _is_of_types(stream, incoming_stream_types): raise TypeError( 'Expected incoming stream(s) to be of one of the following types: {}; got {}'.format( _get_types_str(incoming_stream_types), type(stream) ) ) @classmethod def __get_incoming_edge_map(cls, stream_map): incoming_edge_map = {} for downstream_label, upstream in list(stream_map.items()): incoming_edge_map[downstream_label] = ( upstream.node, upstream.label, upstream.selector, ) return incoming_edge_map def __init__( self, stream_spec, name, incoming_stream_types, outgoing_stream_type, min_inputs, max_inputs, args=[], kwargs={}, ): stream_map = get_stream_map(stream_spec) self.__check_input_len(stream_map, min_inputs, max_inputs) self.__check_input_types(stream_map, incoming_stream_types) incoming_edge_map = self.__get_incoming_edge_map(stream_map) super(Node, self).__init__(incoming_edge_map, name, args, kwargs) self.__outgoing_stream_type = outgoing_stream_type self.__incoming_stream_types = incoming_stream_types def stream(self, label=None, selector=None): """Create an outgoing stream originating from this node. More nodes may be attached onto the outgoing stream. """ return self.__outgoing_stream_type(self, label, upstream_selector=selector) def __getitem__(self, item): """Create an outgoing stream originating from this node; syntactic sugar for ``self.stream(label)``. It can also be used to apply a selector: e.g. ``node[0:'a']`` returns a stream with label 0 and selector ``'a'``, which is the same as ``node.stream(label=0, selector='a')``. Example: Process the audio and video portions of a stream independently:: input = ffmpeg.input('in.mp4') audio = input[:'a'].filter("aecho", 0.8, 0.9, 1000, 0.3) video = input[:'v'].hflip() out = ffmpeg.output(audio, video, 'out.mp4') """ if isinstance(item, slice): return self.stream(label=item.start, selector=item.stop) else: return self.stream(label=item) class FilterableStream(Stream): def __init__(self, upstream_node, upstream_label, upstream_selector=None): super(FilterableStream, self).__init__( upstream_node, upstream_label, {InputNode, FilterNode}, upstream_selector ) # noinspection PyMethodOverriding class InputNode(Node): """InputNode type""" def __init__(self, name, args=[], kwargs={}): super(InputNode, self).__init__( stream_spec=None, name=name, incoming_stream_types={}, outgoing_stream_type=FilterableStream, min_inputs=0, max_inputs=0, args=args, kwargs=kwargs, ) @property def short_repr(self): return os.path.basename(self.kwargs['filename']) # noinspection PyMethodOverriding class FilterNode(Node): def __init__(self, stream_spec, name, max_inputs=1, args=[], kwargs={}): super(FilterNode, self).__init__( stream_spec=stream_spec, name=name, incoming_stream_types={FilterableStream}, outgoing_stream_type=FilterableStream, min_inputs=1, max_inputs=max_inputs, args=args, kwargs=kwargs, ) """FilterNode""" def _get_filter(self, outgoing_edges): args = self.args kwargs = self.kwargs if self.name in ('split', 'asplit'): args = [len(outgoing_edges)] out_args = [escape_chars(x, '\\\'=:') for x in args] out_kwargs = {} for k, v in list(kwargs.items()): k = escape_chars(k, '\\\'=:') v = escape_chars(v, '\\\'=:') out_kwargs[k] = v arg_params = [escape_chars(v, '\\\'=:') for v in out_args] kwarg_params = ['{}={}'.format(k, out_kwargs[k]) for k in sorted(out_kwargs)] params = arg_params + kwarg_params params_text = escape_chars(self.name, '\\\'=:') if params: params_text += '={}'.format(':'.join(params)) return escape_chars(params_text, '\\\'[],;') # noinspection PyMethodOverriding class OutputNode(Node): def __init__(self, stream, name, args=[], kwargs={}): super(OutputNode, self).__init__( stream_spec=stream, name=name, incoming_stream_types={FilterableStream}, outgoing_stream_type=OutputStream, min_inputs=1, max_inputs=None, args=args, kwargs=kwargs, ) @property def short_repr(self): return os.path.basename(self.kwargs['filename']) class OutputStream(Stream): def __init__(self, upstream_node, upstream_label, upstream_selector=None): super(OutputStream, self).__init__( upstream_node, upstream_label, {OutputNode, GlobalNode, MergeOutputsNode}, upstream_selector=upstream_selector, ) # noinspection PyMethodOverriding class MergeOutputsNode(Node): def __init__(self, streams, name): super(MergeOutputsNode, self).__init__( stream_spec=streams, name=name, incoming_stream_types={OutputStream}, outgoing_stream_type=OutputStream, min_inputs=1, max_inputs=None, ) # noinspection PyMethodOverriding class GlobalNode(Node): def __init__(self, stream, name, args=[], kwargs={}): super(GlobalNode, self).__init__( stream_spec=stream, name=name, incoming_stream_types={OutputStream}, outgoing_stream_type=OutputStream, min_inputs=1, max_inputs=1, args=args, kwargs=kwargs, ) def stream_operator(stream_classes={Stream}, name=None): def decorator(func): func_name = name or func.__name__ [setattr(stream_class, func_name, func) for stream_class in stream_classes] return func return decorator def filter_operator(name=None): return stream_operator(stream_classes={FilterableStream}, name=name) def output_operator(name=None): return stream_operator(stream_classes={OutputStream}, name=name) __all__ = ['Stream'] ================================================ FILE: ffmpeg/tests/__init__.py ================================================ ================================================ FILE: ffmpeg/tests/test_ffmpeg.py ================================================ from __future__ import unicode_literals from builtins import bytes from builtins import range from builtins import str import ffmpeg import os import pytest import random import re import subprocess import sys try: import mock # python 2 except ImportError: from unittest import mock # python 3 TEST_DIR = os.path.dirname(__file__) SAMPLE_DATA_DIR = os.path.join(TEST_DIR, 'sample_data') TEST_INPUT_FILE1 = os.path.join(SAMPLE_DATA_DIR, 'in1.mp4') TEST_OVERLAY_FILE = os.path.join(SAMPLE_DATA_DIR, 'overlay.png') TEST_OUTPUT_FILE1 = os.path.join(SAMPLE_DATA_DIR, 'out1.mp4') TEST_OUTPUT_FILE2 = os.path.join(SAMPLE_DATA_DIR, 'out2.mp4') BOGUS_INPUT_FILE = os.path.join(SAMPLE_DATA_DIR, 'bogus') subprocess.check_call(['ffmpeg', '-version']) def test_escape_chars(): assert ffmpeg._utils.escape_chars('a:b', ':') == r'a\:b' assert ffmpeg._utils.escape_chars('a\\:b', ':\\') == 'a\\\\\\:b' assert ( ffmpeg._utils.escape_chars('a:b,c[d]e%{}f\'g\'h\\i', '\\\':,[]%') == 'a\\:b\\,c\\[d\\]e\\%{}f\\\'g\\\'h\\\\i' ) assert ffmpeg._utils.escape_chars(123, ':\\') == '123' def test_fluent_equality(): base1 = ffmpeg.input('dummy1.mp4') base2 = ffmpeg.input('dummy1.mp4') base3 = ffmpeg.input('dummy2.mp4') t1 = base1.trim(start_frame=10, end_frame=20) t2 = base1.trim(start_frame=10, end_frame=20) t3 = base1.trim(start_frame=10, end_frame=30) t4 = base2.trim(start_frame=10, end_frame=20) t5 = base3.trim(start_frame=10, end_frame=20) assert t1 == t2 assert t1 != t3 assert t1 == t4 assert t1 != t5 def test_fluent_concat(): base = ffmpeg.input('dummy.mp4') trimmed1 = base.trim(start_frame=10, end_frame=20) trimmed2 = base.trim(start_frame=30, end_frame=40) trimmed3 = base.trim(start_frame=50, end_frame=60) concat1 = ffmpeg.concat(trimmed1, trimmed2, trimmed3) concat2 = ffmpeg.concat(trimmed1, trimmed2, trimmed3) concat3 = ffmpeg.concat(trimmed1, trimmed3, trimmed2) assert concat1 == concat2 assert concat1 != concat3 def test_fluent_output(): ffmpeg.input('dummy.mp4').trim(start_frame=10, end_frame=20).output('dummy2.mp4') def test_fluent_complex_filter(): in_file = ffmpeg.input('dummy.mp4') return ffmpeg.concat( in_file.trim(start_frame=10, end_frame=20), in_file.trim(start_frame=30, end_frame=40), in_file.trim(start_frame=50, end_frame=60), ).output('dummy2.mp4') def test_node_repr(): in_file = ffmpeg.input('dummy.mp4') trim1 = ffmpeg.trim(in_file, start_frame=10, end_frame=20) trim2 = ffmpeg.trim(in_file, start_frame=30, end_frame=40) trim3 = ffmpeg.trim(in_file, start_frame=50, end_frame=60) concatted = ffmpeg.concat(trim1, trim2, trim3) output = ffmpeg.output(concatted, 'dummy2.mp4') assert repr(in_file.node) == 'input(filename={!r}) <{}>'.format( 'dummy.mp4', in_file.node.short_hash ) assert repr(trim1.node) == 'trim(end_frame=20, start_frame=10) <{}>'.format( trim1.node.short_hash ) assert repr(trim2.node) == 'trim(end_frame=40, start_frame=30) <{}>'.format( trim2.node.short_hash ) assert repr(trim3.node) == 'trim(end_frame=60, start_frame=50) <{}>'.format( trim3.node.short_hash ) assert repr(concatted.node) == 'concat(n=3) <{}>'.format(concatted.node.short_hash) assert repr(output.node) == 'output(filename={!r}) <{}>'.format( 'dummy2.mp4', output.node.short_hash ) def test_stream_repr(): in_file = ffmpeg.input('dummy.mp4') assert repr(in_file) == 'input(filename={!r})[None] <{}>'.format( 'dummy.mp4', in_file.node.short_hash ) split0 = in_file.filter_multi_output('split')[0] assert repr(split0) == 'split()[0] <{}>'.format(split0.node.short_hash) dummy_out = in_file.filter_multi_output('dummy')['out'] assert repr(dummy_out) == 'dummy()[{!r}] <{}>'.format( dummy_out.label, dummy_out.node.short_hash ) def test_repeated_args(): out_file = ffmpeg.input('dummy.mp4').output( 'dummy2.mp4', streamid=['0:0x101', '1:0x102'] ) assert out_file.get_args() == [ '-i', 'dummy.mp4', '-streamid', '0:0x101', '-streamid', '1:0x102', 'dummy2.mp4', ] def test__get_args__simple(): out_file = ffmpeg.input('dummy.mp4').output('dummy2.mp4') assert out_file.get_args() == ['-i', 'dummy.mp4', 'dummy2.mp4'] def test_global_args(): out_file = ( ffmpeg.input('dummy.mp4') .output('dummy2.mp4') .global_args('-progress', 'someurl') ) assert out_file.get_args() == [ '-i', 'dummy.mp4', 'dummy2.mp4', '-progress', 'someurl', ] def _get_simple_example(): return ffmpeg.input(TEST_INPUT_FILE1).output(TEST_OUTPUT_FILE1) def _get_complex_filter_example(): split = ffmpeg.input(TEST_INPUT_FILE1).vflip().split() split0 = split[0] split1 = split[1] overlay_file = ffmpeg.input(TEST_OVERLAY_FILE) overlay_file = ffmpeg.crop(overlay_file, 10, 10, 158, 112) return ( ffmpeg.concat( split0.trim(start_frame=10, end_frame=20), split1.trim(start_frame=30, end_frame=40), ) .overlay(overlay_file.hflip()) .drawbox(50, 50, 120, 120, color='red', thickness=5) .output(TEST_OUTPUT_FILE1) .overwrite_output() ) def test__get_args__complex_filter(): out = _get_complex_filter_example() args = ffmpeg.get_args(out) assert args == [ '-i', TEST_INPUT_FILE1, '-i', TEST_OVERLAY_FILE, '-filter_complex', '[0]vflip[s0];' '[s0]split=2[s1][s2];' '[s1]trim=end_frame=20:start_frame=10[s3];' '[s2]trim=end_frame=40:start_frame=30[s4];' '[s3][s4]concat=n=2[s5];' '[1]crop=158:112:10:10[s6];' '[s6]hflip[s7];' '[s5][s7]overlay=eof_action=repeat[s8];' '[s8]drawbox=50:50:120:120:red:t=5[s9]', '-map', '[s9]', TEST_OUTPUT_FILE1, '-y', ] def test_combined_output(): i1 = ffmpeg.input(TEST_INPUT_FILE1) i2 = ffmpeg.input(TEST_OVERLAY_FILE) out = ffmpeg.output(i1, i2, TEST_OUTPUT_FILE1) assert out.get_args() == [ '-i', TEST_INPUT_FILE1, '-i', TEST_OVERLAY_FILE, '-map', '0', '-map', '1', TEST_OUTPUT_FILE1, ] @pytest.mark.parametrize('use_shorthand', [True, False]) def test_filter_with_selector(use_shorthand): i = ffmpeg.input(TEST_INPUT_FILE1) if use_shorthand: v1 = i.video.hflip() a1 = i.audio.filter('aecho', 0.8, 0.9, 1000, 0.3) else: v1 = i['v'].hflip() a1 = i['a'].filter('aecho', 0.8, 0.9, 1000, 0.3) out = ffmpeg.output(a1, v1, TEST_OUTPUT_FILE1) assert out.get_args() == [ '-i', TEST_INPUT_FILE1, '-filter_complex', '[0:a]aecho=0.8:0.9:1000:0.3[s0];' '[0:v]hflip[s1]', '-map', '[s0]', '-map', '[s1]', TEST_OUTPUT_FILE1, ] def test_get_item_with_bad_selectors(): input = ffmpeg.input(TEST_INPUT_FILE1) with pytest.raises(ValueError) as excinfo: input['a']['a'] assert str(excinfo.value).startswith('Stream already has a selector:') with pytest.raises(TypeError) as excinfo: input[:'a'] assert str(excinfo.value).startswith("Expected string index (e.g. 'a')") with pytest.raises(TypeError) as excinfo: input[5] assert str(excinfo.value).startswith("Expected string index (e.g. 'a')") def _get_complex_filter_asplit_example(): split = ffmpeg.input(TEST_INPUT_FILE1).vflip().asplit() split0 = split[0] split1 = split[1] return ( ffmpeg.concat( split0.filter('atrim', start=10, end=20), split1.filter('atrim', start=30, end=40), ) .output(TEST_OUTPUT_FILE1) .overwrite_output() ) def test_filter_concat__video_only(): in1 = ffmpeg.input('in1.mp4') in2 = ffmpeg.input('in2.mp4') args = ffmpeg.concat(in1, in2).output('out.mp4').get_args() assert args == [ '-i', 'in1.mp4', '-i', 'in2.mp4', '-filter_complex', '[0][1]concat=n=2[s0]', '-map', '[s0]', 'out.mp4', ] def test_filter_concat__audio_only(): in1 = ffmpeg.input('in1.mp4') in2 = ffmpeg.input('in2.mp4') args = ffmpeg.concat(in1, in2, v=0, a=1).output('out.mp4').get_args() assert args == [ '-i', 'in1.mp4', '-i', 'in2.mp4', '-filter_complex', '[0][1]concat=a=1:n=2:v=0[s0]', '-map', '[s0]', 'out.mp4', ] def test_filter_concat__audio_video(): in1 = ffmpeg.input('in1.mp4') in2 = ffmpeg.input('in2.mp4') joined = ffmpeg.concat(in1.video, in1.audio, in2.hflip(), in2['a'], v=1, a=1).node args = ffmpeg.output(joined[0], joined[1], 'out.mp4').get_args() assert args == [ '-i', 'in1.mp4', '-i', 'in2.mp4', '-filter_complex', '[1]hflip[s0];[0:v][0:a][s0][1:a]concat=a=1:n=2:v=1[s1][s2]', '-map', '[s1]', '-map', '[s2]', 'out.mp4', ] def test_filter_concat__wrong_stream_count(): in1 = ffmpeg.input('in1.mp4') in2 = ffmpeg.input('in2.mp4') with pytest.raises(ValueError) as excinfo: ffmpeg.concat(in1.video, in1.audio, in2.hflip(), v=1, a=1).node assert ( str(excinfo.value) == 'Expected concat input streams to have length multiple of 2 (v=1, a=1); got 3' ) def test_filter_asplit(): out = _get_complex_filter_asplit_example() args = out.get_args() assert args == [ '-i', TEST_INPUT_FILE1, '-filter_complex', ( '[0]vflip[s0];' '[s0]asplit=2[s1][s2];' '[s1]atrim=end=20:start=10[s3];' '[s2]atrim=end=40:start=30[s4];' '[s3][s4]concat=n=2[s5]' ), '-map', '[s5]', TEST_OUTPUT_FILE1, '-y', ] def test__output__bitrate(): args = ( ffmpeg.input('in') .output('out', video_bitrate=1000, audio_bitrate=200) .get_args() ) assert args == ['-i', 'in', '-b:v', '1000', '-b:a', '200', 'out'] @pytest.mark.parametrize('video_size', [(320, 240), '320x240']) def test__output__video_size(video_size): args = ffmpeg.input('in').output('out', video_size=video_size).get_args() assert args == ['-i', 'in', '-video_size', '320x240', 'out'] def test_filter_normal_arg_escape(): """Test string escaping of normal filter args (e.g. ``font`` param of ``drawtext`` filter). """ def _get_drawtext_font_repr(font): """Build a command-line arg using drawtext ``font`` param and extract the ``-filter_complex`` arg. """ args = ( ffmpeg.input('in') .drawtext('test', font='a{}b'.format(font)) .output('out') .get_args() ) assert args[:3] == ['-i', 'in', '-filter_complex'] assert args[4:] == ['-map', '[s0]', 'out'] match = re.match( r'\[0\]drawtext=font=a((.|\n)*)b:text=test\[s0\]', args[3], re.MULTILINE, ) assert match is not None, 'Invalid -filter_complex arg: {!r}'.format(args[3]) return match.group(1) expected_backslash_counts = { 'x': 0, '\'': 3, '\\': 3, '%': 0, ':': 2, ',': 1, '[': 1, ']': 1, '=': 2, '\n': 0, } for ch, expected_backslash_count in list(expected_backslash_counts.items()): expected = '{}{}'.format('\\' * expected_backslash_count, ch) actual = _get_drawtext_font_repr(ch) assert expected == actual def test_filter_text_arg_str_escape(): """Test string escaping of normal filter args (e.g. ``text`` param of ``drawtext`` filter). """ def _get_drawtext_text_repr(text): """Build a command-line arg using drawtext ``text`` param and extract the ``-filter_complex`` arg. """ args = ffmpeg.input('in').drawtext('a{}b'.format(text)).output('out').get_args() assert args[:3] == ['-i', 'in', '-filter_complex'] assert args[4:] == ['-map', '[s0]', 'out'] match = re.match(r'\[0\]drawtext=text=a((.|\n)*)b\[s0\]', args[3], re.MULTILINE) assert match is not None, 'Invalid -filter_complex arg: {!r}'.format(args[3]) return match.group(1) expected_backslash_counts = { 'x': 0, '\'': 7, '\\': 7, '%': 4, ':': 2, ',': 1, '[': 1, ']': 1, '=': 2, '\n': 0, } for ch, expected_backslash_count in list(expected_backslash_counts.items()): expected = '{}{}'.format('\\' * expected_backslash_count, ch) actual = _get_drawtext_text_repr(ch) assert expected == actual # def test_version(): # subprocess.check_call(['ffmpeg', '-version']) def test__compile(): out_file = ffmpeg.input('dummy.mp4').output('dummy2.mp4') assert out_file.compile() == ['ffmpeg', '-i', 'dummy.mp4', 'dummy2.mp4'] assert out_file.compile(cmd='ffmpeg.old') == [ 'ffmpeg.old', '-i', 'dummy.mp4', 'dummy2.mp4', ] @pytest.mark.parametrize('pipe_stdin', [True, False]) @pytest.mark.parametrize('pipe_stdout', [True, False]) @pytest.mark.parametrize('pipe_stderr', [True, False]) @pytest.mark.parametrize('cwd', [None, '/tmp']) def test__run_async(mocker, pipe_stdin, pipe_stdout, pipe_stderr, cwd): process__mock = mock.Mock() popen__mock = mocker.patch.object(subprocess, 'Popen', return_value=process__mock) stream = _get_simple_example() process = ffmpeg.run_async( stream, pipe_stdin=pipe_stdin, pipe_stdout=pipe_stdout, pipe_stderr=pipe_stderr, cwd=cwd, ) assert process is process__mock expected_stdin = subprocess.PIPE if pipe_stdin else None expected_stdout = subprocess.PIPE if pipe_stdout else None expected_stderr = subprocess.PIPE if pipe_stderr else None (args,), kwargs = popen__mock.call_args assert args == ffmpeg.compile(stream) assert kwargs == dict( stdin=expected_stdin, stdout=expected_stdout, stderr=expected_stderr, cwd=cwd, ) def test__run(): stream = _get_complex_filter_example() out, err = ffmpeg.run(stream) assert out is None assert err is None @pytest.mark.parametrize('capture_stdout', [True, False]) @pytest.mark.parametrize('capture_stderr', [True, False]) def test__run__capture_out(mocker, capture_stdout, capture_stderr): mocker.patch.object(ffmpeg._run, 'compile', return_value=['echo', 'test']) stream = _get_simple_example() out, err = ffmpeg.run( stream, capture_stdout=capture_stdout, capture_stderr=capture_stderr ) if capture_stdout: assert out == 'test\n'.encode() else: assert out is None if capture_stderr: assert err == ''.encode() else: assert err is None def test__run__input_output(mocker): mocker.patch.object(ffmpeg._run, 'compile', return_value=['cat']) stream = _get_simple_example() out, err = ffmpeg.run(stream, input='test'.encode(), capture_stdout=True) assert out == 'test'.encode() assert err is None @pytest.mark.parametrize('capture_stdout', [True, False]) @pytest.mark.parametrize('capture_stderr', [True, False]) def test__run__error(mocker, capture_stdout, capture_stderr): mocker.patch.object(ffmpeg._run, 'compile', return_value=['ffmpeg']) stream = _get_complex_filter_example() with pytest.raises(ffmpeg.Error) as excinfo: out, err = ffmpeg.run( stream, capture_stdout=capture_stdout, capture_stderr=capture_stderr ) assert str(excinfo.value) == 'ffmpeg error (see stderr output for detail)' out = excinfo.value.stdout err = excinfo.value.stderr if capture_stdout: assert out == ''.encode() else: assert out is None if capture_stderr: assert err.decode().startswith('ffmpeg version') else: assert err is None def test__run__multi_output(): in_ = ffmpeg.input(TEST_INPUT_FILE1) out1 = in_.output(TEST_OUTPUT_FILE1) out2 = in_.output(TEST_OUTPUT_FILE2) ffmpeg.run([out1, out2], overwrite_output=True) def test__run__dummy_cmd(): stream = _get_complex_filter_example() ffmpeg.run(stream, cmd='true') def test__run__dummy_cmd_list(): stream = _get_complex_filter_example() ffmpeg.run(stream, cmd=['true', 'ignored']) def test__filter__custom(): stream = ffmpeg.input('dummy.mp4') stream = ffmpeg.filter(stream, 'custom_filter', 'a', 'b', kwarg1='c') stream = ffmpeg.output(stream, 'dummy2.mp4') assert stream.get_args() == [ '-i', 'dummy.mp4', '-filter_complex', '[0]custom_filter=a:b:kwarg1=c[s0]', '-map', '[s0]', 'dummy2.mp4', ] def test__filter__custom_fluent(): stream = ( ffmpeg.input('dummy.mp4') .filter('custom_filter', 'a', 'b', kwarg1='c') .output('dummy2.mp4') ) assert stream.get_args() == [ '-i', 'dummy.mp4', '-filter_complex', '[0]custom_filter=a:b:kwarg1=c[s0]', '-map', '[s0]', 'dummy2.mp4', ] def test__merge_outputs(): in_ = ffmpeg.input('in.mp4') out1 = in_.output('out1.mp4') out2 = in_.output('out2.mp4') assert ffmpeg.merge_outputs(out1, out2).get_args() == [ '-i', 'in.mp4', 'out1.mp4', 'out2.mp4', ] assert ffmpeg.get_args([out1, out2]) == ['-i', 'in.mp4', 'out2.mp4', 'out1.mp4'] def test__input__start_time(): assert ffmpeg.input('in', ss=10.5).output('out').get_args() == [ '-ss', '10.5', '-i', 'in', 'out', ] assert ffmpeg.input('in', ss=0.0).output('out').get_args() == [ '-ss', '0.0', '-i', 'in', 'out', ] def test_multi_passthrough(): out1 = ffmpeg.input('in1.mp4').output('out1.mp4') out2 = ffmpeg.input('in2.mp4').output('out2.mp4') out = ffmpeg.merge_outputs(out1, out2) assert ffmpeg.get_args(out) == [ '-i', 'in1.mp4', '-i', 'in2.mp4', 'out1.mp4', '-map', '1', 'out2.mp4', ] assert ffmpeg.get_args([out1, out2]) == [ '-i', 'in2.mp4', '-i', 'in1.mp4', 'out2.mp4', '-map', '1', 'out1.mp4', ] def test_passthrough_selectors(): i1 = ffmpeg.input(TEST_INPUT_FILE1) args = ffmpeg.output(i1['1'], i1['2'], TEST_OUTPUT_FILE1).get_args() assert args == [ '-i', TEST_INPUT_FILE1, '-map', '0:1', '-map', '0:2', TEST_OUTPUT_FILE1, ] def test_mixed_passthrough_selectors(): i1 = ffmpeg.input(TEST_INPUT_FILE1) args = ffmpeg.output(i1['1'].hflip(), i1['2'], TEST_OUTPUT_FILE1).get_args() assert args == [ '-i', TEST_INPUT_FILE1, '-filter_complex', '[0:1]hflip[s0]', '-map', '[s0]', '-map', '0:2', TEST_OUTPUT_FILE1, ] def test_pipe(): width = 32 height = 32 frame_size = width * height * 3 # 3 bytes for rgb24 frame_count = 10 start_frame = 2 out = ( ffmpeg.input( 'pipe:0', format='rawvideo', pixel_format='rgb24', video_size=(width, height), framerate=10, ) .trim(start_frame=start_frame) .output('pipe:1', format='rawvideo') ) args = out.get_args() assert args == [ '-f', 'rawvideo', '-video_size', '{}x{}'.format(width, height), '-framerate', '10', '-pixel_format', 'rgb24', '-i', 'pipe:0', '-filter_complex', '[0]trim=start_frame=2[s0]', '-map', '[s0]', '-f', 'rawvideo', 'pipe:1', ] cmd = ['ffmpeg'] + args p = subprocess.Popen( cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, ) in_data = bytes( bytearray([random.randint(0, 255) for _ in range(frame_size * frame_count)]) ) p.stdin.write(in_data) # note: this could block, in which case need to use threads p.stdin.close() out_data = p.stdout.read() assert len(out_data) == frame_size * (frame_count - start_frame) assert out_data == in_data[start_frame * frame_size :] def test__probe(): data = ffmpeg.probe(TEST_INPUT_FILE1) assert set(data.keys()) == {'format', 'streams'} assert data['format']['duration'] == '7.036000' @pytest.mark.skipif(sys.version_info < (3, 3), reason='requires python3.3 or higher') def test__probe_timeout(): with pytest.raises(subprocess.TimeoutExpired) as excinfo: ffmpeg.probe(TEST_INPUT_FILE1, timeout=0) assert 'timed out after 0 seconds' in str(excinfo.value) def test__probe__exception(): with pytest.raises(ffmpeg.Error) as excinfo: ffmpeg.probe(BOGUS_INPUT_FILE) assert str(excinfo.value) == 'ffprobe error (see stderr output for detail)' assert 'No such file or directory'.encode() in excinfo.value.stderr def test__probe__extra_args(): data = ffmpeg.probe(TEST_INPUT_FILE1, show_frames=None) assert set(data.keys()) == {'format', 'streams', 'frames'} def get_filter_complex_input(flt, name): m = re.search(r'\[([^]]+)\]{}(?=[[;]|$)'.format(name), flt) if m: return m.group(1) else: return None def get_filter_complex_outputs(flt, name): m = re.search(r'(^|[];]){}((\[[^]]+\])+)(?=;|$)'.format(name), flt) if m: return m.group(2)[1:-1].split('][') else: return None def test__get_filter_complex_input(): assert get_filter_complex_input('', 'scale') is None assert get_filter_complex_input('scale', 'scale') is None assert get_filter_complex_input('scale[s3][s4];etc', 'scale') is None assert get_filter_complex_input('[s2]scale', 'scale') == 's2' assert get_filter_complex_input('[s2]scale;etc', 'scale') == 's2' assert get_filter_complex_input('[s2]scale[s3][s4];etc', 'scale') == 's2' def test__get_filter_complex_outputs(): assert get_filter_complex_outputs('', 'scale') is None assert get_filter_complex_outputs('scale', 'scale') is None assert get_filter_complex_outputs('scalex[s0][s1]', 'scale') is None assert get_filter_complex_outputs('scale[s0][s1]', 'scale') == ['s0', 's1'] assert get_filter_complex_outputs('[s5]scale[s0][s1]', 'scale') == ['s0', 's1'] assert get_filter_complex_outputs('[s5]scale[s1][s0]', 'scale') == ['s1', 's0'] assert get_filter_complex_outputs('[s5]scale[s1]', 'scale') == ['s1'] assert get_filter_complex_outputs('[s5]scale[s1];x', 'scale') == ['s1'] assert get_filter_complex_outputs('y;[s5]scale[s1];x', 'scale') == ['s1'] def test__multi_output_edge_label_order(): scale2ref = ffmpeg.filter_multi_output( [ffmpeg.input('x'), ffmpeg.input('y')], 'scale2ref' ) out = ffmpeg.merge_outputs( scale2ref[1].filter('scale').output('a'), scale2ref[10000].filter('hflip').output('b'), ) args = out.get_args() flt_cmpl = args[args.index('-filter_complex') + 1] out1, out2 = get_filter_complex_outputs(flt_cmpl, 'scale2ref') assert out1 == get_filter_complex_input(flt_cmpl, 'scale') assert out2 == get_filter_complex_input(flt_cmpl, 'hflip') ================================================ FILE: pyproject.toml ================================================ [tool.black] skip-string-normalization = true target_version = ['py27'] # TODO: drop Python 2 support (... "Soon"). include = '\.pyi?$' exclude = ''' ( /( \.eggs | \.git | \.tox | \venv | dist )/ ) ''' ================================================ FILE: pytest.ini ================================================ [pytest] testpaths = ffmpeg/tests ================================================ FILE: requirements.txt ================================================ alabaster==0.7.12 atomicwrites==1.3.0 attrs==19.1.0 Babel==2.7.0 certifi==2019.3.9 chardet==3.0.4 docutils==0.14 filelock==3.0.12 future==0.17.1 idna==2.8 imagesize==1.1.0 importlib-metadata==0.17 Jinja2==2.10.1 MarkupSafe==1.1.1 more-itertools==7.0.0 numpy==1.16.4 packaging==19.0 pluggy==0.12.0 py==1.8.0 Pygments==2.4.2 pyparsing==2.4.0 pytest==4.6.1 pytest-mock==1.10.4 pytz==2019.1 requests==2.22.0 six==1.12.0 snowballstemmer==1.2.1 Sphinx==2.1.0 sphinxcontrib-applehelp==1.0.1 sphinxcontrib-devhelp==1.0.1 sphinxcontrib-htmlhelp==1.0.2 sphinxcontrib-jsmath==1.0.1 sphinxcontrib-qthelp==1.0.2 sphinxcontrib-serializinghtml==1.1.3 toml==0.10.0 tox==3.12.1 urllib3==1.25.3 virtualenv==16.6.0 wcwidth==0.1.7 zipp==0.5.1 ================================================ FILE: setup.cfg ================================================ [aliases] test=pytest ================================================ FILE: setup.py ================================================ from setuptools import setup from textwrap import dedent version = '0.2.0' download_url = 'https://github.com/kkroening/ffmpeg-python/archive/v{}.zip'.format( version ) long_description = dedent( '''\ ffmpeg-python: Python bindings for FFmpeg ========================================= :Github: https://github.com/kkroening/ffmpeg-python :API Reference: https://kkroening.github.io/ffmpeg-python/ ''' ) file_formats = [ 'aac', 'ac3', 'avi', 'bmp', 'flac', 'gif', 'mov', 'mp3', 'mp4', 'png', 'raw', 'rawvideo', 'wav', ] file_formats += ['.{}'.format(x) for x in file_formats] misc_keywords = [ '-vf', 'a/v', 'audio', 'dsp', 'FFmpeg', 'ffmpeg', 'ffprobe', 'filtering', 'filter_complex', 'movie', 'render', 'signals', 'sound', 'streaming', 'streams', 'vf', 'video', 'wrapper', ] keywords = misc_keywords + file_formats setup( name='ffmpeg-python', packages=['ffmpeg'], version=version, description='Python bindings for FFmpeg - with complex filtering support', author='Karl Kroening', author_email='karlk@kralnet.us', url='https://github.com/kkroening/ffmpeg-python', download_url=download_url, keywords=keywords, long_description=long_description, install_requires=['future'], extras_require={ 'dev': [ 'future==0.17.1', 'numpy==1.16.4', 'pytest-mock==1.10.4', 'pytest==4.6.1', 'Sphinx==2.1.0', 'tox==3.12.1', ] }, classifiers=[ 'Intended Audience :: Developers', 'License :: OSI Approved :: Apache Software License', 'Natural Language :: English', 'Operating System :: OS Independent', 'Programming Language :: Python', 'Programming Language :: Python :: 2', 'Programming Language :: Python :: 2.7', 'Programming Language :: Python :: 3', 'Programming Language :: Python :: 3.3', 'Programming Language :: Python :: 3.4', 'Programming Language :: Python :: 3.5', 'Programming Language :: Python :: 3.6', 'Programming Language :: Python :: 3.7', 'Programming Language :: Python :: 3.8', 'Programming Language :: Python :: 3.9', 'Programming Language :: Python :: 3.10', ], ) ================================================ FILE: tox.ini ================================================ # Tox (https://tox.readthedocs.io/) is a tool for running tests # in multiple virtualenvs. This configuration file will run the # test suite on all supported python versions. To use it, "pip install tox" # and then run "tox" from this directory. [tox] envlist = py27, py35, py36, py37, py38, py39, py310 [gh-actions] python = 2.7: py27 3.5: py35 3.6: py36 3.7: py37 3.8: py38 3.9: py39 3.10: py310 [testenv] commands = py.test -vv deps = future pytest pytest-mock