Repository: olgamiller/SSTVEncoder2 Branch: master Commit: 94821b169700 Files: 87 Total size: 233.8 KB Directory structure: gitextract_y4ynicm8/ ├── .gitignore ├── LICENSE ├── NOTICE ├── README.md ├── app/ │ ├── .gitignore │ ├── build.gradle │ ├── proguard-rules.pro │ └── src/ │ └── main/ │ ├── AndroidManifest.xml │ ├── java/ │ │ └── om/ │ │ └── sstvencoder/ │ │ ├── ColorFragment.java │ │ ├── ColorPalette/ │ │ │ ├── ColorPaletteView.java │ │ │ ├── GridColorPalette.java │ │ │ └── IColorPalette.java │ │ ├── CropView.java │ │ ├── EditTextActivity.java │ │ ├── Encoder.java │ │ ├── FontFamilySet.java │ │ ├── MainActivity.java │ │ ├── MainActivityMessenger.java │ │ ├── ModeInterfaces/ │ │ │ ├── IMode.java │ │ │ ├── IModeInfo.java │ │ │ └── ModeSize.java │ │ ├── Modes/ │ │ │ ├── ImageFormats/ │ │ │ │ ├── NV21.java │ │ │ │ ├── YUV440P.java │ │ │ │ ├── YUY2.java │ │ │ │ ├── YV12.java │ │ │ │ ├── Yuv.java │ │ │ │ ├── YuvConverter.java │ │ │ │ ├── YuvFactory.java │ │ │ │ └── YuvImageFormat.java │ │ │ ├── Martin.java │ │ │ ├── Martin1.java │ │ │ ├── Martin2.java │ │ │ ├── Mode.java │ │ │ ├── ModeDescription.java │ │ │ ├── ModeFactory.java │ │ │ ├── ModeInfo.java │ │ │ ├── PD.java │ │ │ ├── PD120.java │ │ │ ├── PD160.java │ │ │ ├── PD180.java │ │ │ ├── PD240.java │ │ │ ├── PD290.java │ │ │ ├── PD50.java │ │ │ ├── PD90.java │ │ │ ├── Robot36.java │ │ │ ├── Robot72.java │ │ │ ├── Scottie.java │ │ │ ├── Scottie1.java │ │ │ ├── Scottie2.java │ │ │ ├── ScottieDX.java │ │ │ └── Wraase.java │ │ ├── Output/ │ │ │ ├── AudioOutput.java │ │ │ ├── IOutput.java │ │ │ ├── OutputFactory.java │ │ │ ├── WaveFileOutput.java │ │ │ └── WaveFileOutputContext.java │ │ ├── ProgressBarWrapper.java │ │ ├── Settings.java │ │ ├── TextOverlay/ │ │ │ ├── IReader.java │ │ │ ├── IWriter.java │ │ │ ├── Label.java │ │ │ ├── LabelCollection.java │ │ │ ├── LabelContainer.java │ │ │ ├── LabelPainter.java │ │ │ └── Position.java │ │ ├── TextOverlayTemplate.java │ │ └── Utility.java │ └── res/ │ ├── layout/ │ │ ├── activity_edit_text.xml │ │ ├── activity_main.xml │ │ └── fragment_color.xml │ ├── menu/ │ │ ├── menu_edit_text.xml │ │ └── menu_main.xml │ ├── values/ │ │ ├── strings.xml │ │ └── styles.xml │ ├── values-v35/ │ │ └── styles.xml │ ├── values-zh-rCN/ │ │ └── strings.xml │ └── xml/ │ └── paths.xml ├── build.gradle ├── fastlane/ │ └── metadata/ │ └── android/ │ └── en-US/ │ ├── full_description.txt │ ├── short_description.txt │ └── title.txt ├── gradle/ │ └── wrapper/ │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradle.properties ├── gradlew ├── gradlew.bat └── settings.gradle ================================================ FILE CONTENTS ================================================ ================================================ FILE: .gitignore ================================================ *.iml .gradle /local.properties /.idea .DS_Store /build /captures .externalNativeBuild ================================================ 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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See the License for the specific language governing permissions and limitations under the License. ================================================ FILE: NOTICE ================================================ SSTV Encoder 2 Copyright 2017 Olga Miller Mode specifications were taken from "Dayton Paper" of JL Barber: http://www.barberdsp.com/downloads/Dayton%20Paper.pdf sym_keyboard_done_lxx_dark.png icons were taken from android.googlesource.com ic_launcher.png were created using GIMP: http://www.gimp.org/ SMPTE Color Bars image (CC BY-SA 3.0) was taken from Wikipedia: http://en.wikipedia.org/wiki/SMPTE_color_bars#mediaviewer/File:SMPTE_Color_Bars.svg ================================================ FILE: README.md ================================================ ![Icon](app/src/main/res/mipmap-xhdpi/ic_launcher.png) # SSTV Encoder 2 Image encoder for Slow-Scan Television (SSTV) audio signals ### Modes Supported SSTV modes: * **Martin Modes**: Martin 1, Martin 2 * **PD Modes**: PD 50, PD 90, PD 120, PD 160, PD 180, PD 240, PD 290 * **Robot Modes**: Robot 36 Color, Robot 72 Color * **Scottie Modes**: Scottie 1, Scottie 2, Scottie DX * **Wraase Modes**: Wraase SC2 180 The mode specifications are taken from the Dayton Paper, JL Barber, "Proposal for SSTV Mode Specifications", 2000: http://www.barberdsp.com/downloads/Dayton%20Paper.pdf ### Image To load an image: * tap **"Take Picture"** or **"Pick Picture"** menu button, or * use the **Share** option of an app like e.g. Gallery. To keep the aspect ratio, black borders will be added if necessary. Original image can be resend using another mode without reloading. After image rotation or mode changing the image will be scaled to that mode's native size. After closing the app the loaded image will not be stored. ### Text Overlay Actions for working with text overlays: * Single tap **to add** a text overlay. * Single tap on text overlay **to edit** it. * Long press **to move** text overlay. * Remove the text **to remove** a text overlay. After closing the app all text overlays will be stored and reloaded when restarting. ### Menu Available menu options: * **"Play"**: Sends the image * **"Stop"**: Stops the current sending and empties the queue * **"Pick Picture"**: Opens an image viewer app to select a picture * **"Take Picture"**: Starts a camera app to take a picture * **"Save as WAVE File"**: Creates a wave file in the Music folder in SSTV Encoder album * **"Transform Image"**: * **"Rotate"**: Rotates the image by 90 degrees * **"Reset"**: Resets image rotation and scaling * **"Modes"**: Lists all supported modes ### Installation The working app "SSTV Encoder" can be installed on Google Play: https://play.google.com/store/apps/details?id=om.sstvencoder or on F-Droid: https://f-droid.org/packages/om.sstvencoder/ # SSTV Image Decoder Open Source Code: https://github.com/xdsopl/robot36/tree/android ### Installation The working app "Robot36 - SSTV Image Decoder" can be installed on Google Play: https://play.google.com/store/apps/details?id=xdsopl.robot36 or on F-Droid: https://f-droid.org/packages/xdsopl.robot36/ ================================================ FILE: app/.gitignore ================================================ /build ================================================ FILE: app/build.gradle ================================================ apply plugin: 'com.android.application' android { compileSdk 35 defaultConfig { applicationId "om.sstvencoder" minSdk 21 targetSdk 35 versionCode 34 versionName "2.13" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } namespace 'om.sstvencoder' buildFeatures { buildConfig true } } dependencies { implementation fileTree(dir: 'libs', include: ['*.jar']) implementation 'androidx.appcompat:appcompat:1.7.0' implementation "androidx.exifinterface:exifinterface:1.3.7" } ================================================ FILE: app/proguard-rules.pro ================================================ # Add project specific ProGuard rules here. # By default, the flags in this file are appended to flags specified # in /home/olga/Android/Sdk/tools/proguard/proguard-android.txt # You can edit the include path and order by changing the proguardFiles # directive in build.gradle. # # For more details, see # http://developer.android.com/guide/developing/tools/proguard.html # Add any project specific keep options here: # If your project uses WebView with JS, uncomment the following # and specify the fully qualified class name to the JavaScript interface # class: #-keepclassmembers class fqcn.of.javascript.interface.for.webview { # public *; #} ================================================ FILE: app/src/main/AndroidManifest.xml ================================================ ================================================ FILE: app/src/main/java/om/sstvencoder/ColorFragment.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder; import android.app.AlertDialog; import android.app.Dialog; import android.graphics.Color; import android.os.Bundle; import androidx.annotation.NonNull; import androidx.fragment.app.DialogFragment; import android.view.View; import java.util.ArrayList; import java.util.List; import om.sstvencoder.ColorPalette.ColorPaletteView; public class ColorFragment extends DialogFragment implements ColorPaletteView.OnColorSelectedListener { public interface OnColorSelectedListener { void onColorSelected(DialogFragment fragment, int color); void onCancel(DialogFragment fragment); } private List mListeners; private int mTitle; private int mColor; public ColorFragment() { mListeners = new ArrayList<>(); mTitle = R.string.color; mColor = Color.WHITE; } public void setTitle(int title) { mTitle = title; } public void setColor(int color) { mColor = color; } public void addOnColorSelectedListener(OnColorSelectedListener listener) { mListeners.add(listener); } @NonNull @Override public Dialog onCreateDialog(Bundle savedInstanceState) { AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); View view = getActivity().getLayoutInflater().inflate(R.layout.fragment_color, null); ColorPaletteView colorView = view.findViewById(R.id.select_color); colorView.setColor(mColor); colorView.addOnColorSelectedListener(this); builder.setTitle(mTitle); builder.setView(view); return builder.create(); } @Override public void onColorChanged(View v, int color) { } @Override public void onColorSelected(View v, int color) { for (OnColorSelectedListener listener : mListeners) listener.onColorSelected(this, color); dismiss(); } @Override public void onCancel(View v) { for (OnColorSelectedListener listener : mListeners) listener.onCancel(this); dismiss(); } } ================================================ FILE: app/src/main/java/om/sstvencoder/ColorPalette/ColorPaletteView.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.ColorPalette; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.PorterDuff; import androidx.annotation.NonNull; import android.util.AttributeSet; import android.view.MotionEvent; import android.view.View; import java.util.ArrayList; public class ColorPaletteView extends View { public interface OnColorSelectedListener { void onColorChanged(View v, int color); void onColorSelected(View v, int color); void onCancel(View v); } private final ArrayList mListeners; private final IColorPalette mPalette; public ColorPaletteView(Context context, AttributeSet attrs) { super(context, attrs); mListeners = new ArrayList<>(); mPalette = new GridColorPalette(GridColorPalette.getStandardColors(), getResources().getDisplayMetrics().density); } public int getColor() { return mPalette.getSelectedColor(); } public void setColor(int color) { mPalette.selectColor(color); } @Override protected void onSizeChanged(int w, int h, int old_w, int old_h) { super.onSizeChanged(w, h, old_w, old_h); mPalette.updateSize(w, h); } @Override protected void onDraw(@NonNull Canvas canvas) { canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR); mPalette.draw(canvas); } @Override public boolean onTouchEvent(@NonNull MotionEvent e) { boolean consumed = false; switch (e.getAction()) { case MotionEvent.ACTION_DOWN: case MotionEvent.ACTION_MOVE: { update(e.getX(), e.getY()); consumed = true; break; } case MotionEvent.ACTION_UP: { float x = e.getX(); float y = e.getY(); if (getLeft() <= x && x <= getRight() && getTop() <= y && y <= getBottom()) colorSelectedCallback(); else cancelCallback(); consumed = true; break; } } return consumed || super.onTouchEvent(e); } private void update(float x, float y) { if (mPalette.selectColor(x, y)) { invalidate(); colorChangedCallback(); } } public void addOnColorSelectedListener(OnColorSelectedListener listener) { mListeners.add(listener); } private void colorChangedCallback() { for (OnColorSelectedListener listener : mListeners) { listener.onColorChanged(this, mPalette.getSelectedColor()); } } private void colorSelectedCallback() { for (OnColorSelectedListener listener : mListeners) { listener.onColorSelected(this, mPalette.getSelectedColor()); } } private void cancelCallback() { for (OnColorSelectedListener listener : mListeners) { listener.onCancel(this); } } } ================================================ FILE: app/src/main/java/om/sstvencoder/ColorPalette/GridColorPalette.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.ColorPalette; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.RectF; class GridColorPalette implements IColorPalette { static int[] getStandardColors() { return new int[]{ Color.BLACK, Color.GRAY, Color.LTGRAY, Color.WHITE, Color.YELLOW, Color.CYAN, Color.GREEN, Color.MAGENTA, Color.RED, Color.BLUE }; } private final static float STROKE_WIDTH_FACTOR = 6f; private final static float BOX_SIZE_DP = 96f; private final static float SPACE_FACTOR = 6f; private final int[] mColorList; private final Paint mPaint; private final RectF mSelectedBounds; private final float mDisplayMetricsDensity; private int mColumns, mRows; private float mWidth, mHeight; private float mBoxSize, mSpace, mStrokeWidth, mCornerRadius; private int mSelectedColorIndex; private boolean mValid; GridColorPalette(int[] colorList, float displayMetricsDensity) { final float CORNER_RADIUS = 3f; mColorList = colorList; mDisplayMetricsDensity = displayMetricsDensity; mCornerRadius = CORNER_RADIUS * mDisplayMetricsDensity; mPaint = new Paint(); setPaintStyleForBox(); mSelectedBounds = new RectF(); mSelectedColorIndex = 0; mValid = false; } @Override public void updateSize(float width, float height) { mValid = width > 0 && height > 0; if (mValid && (mWidth != width || mHeight != height)) { mWidth = width; mHeight = height; updateGrid(); mStrokeWidth = mSpace / STROKE_WIDTH_FACTOR; setSelectedColor(mSelectedColorIndex); } } // The approximately same box size independently on resolution has the higher priority. // Thus the possible filling of the last row is not supported here. private void updateGrid() { int boxes = mColorList.length; mBoxSize = BOX_SIZE_DP * mDisplayMetricsDensity; mSpace = mBoxSize / SPACE_FACTOR; mColumns = min((int) ((mWidth - mSpace) / (mBoxSize + mSpace) + 0.5f), boxes); mRows = (boxes + mColumns - 1) / mColumns; // ceil updateBoxSizeAndSpace(); while (mRows * (mBoxSize + mSpace) + mSpace > mHeight) { ++mColumns; mRows = (boxes + mColumns - 1) / mColumns; updateBoxSizeAndSpace(); } } private int min(int a, int b) { return a <= b ? a : b; } // Fill out the whole width of the View. private void updateBoxSizeAndSpace() { // Set 'space = boxSize / spaceFactor' into // 'boxSize = (width - (columns + 1) * space ) / columns' // and solve for boxSize: mBoxSize = SPACE_FACTOR * mWidth / (1f + mColumns * (SPACE_FACTOR + 1f)); mSpace = mBoxSize / SPACE_FACTOR; } @Override public void draw(Canvas canvas) { if (!mValid) return; float x = mSpace, y = mSpace; float maxX = mColumns * (mBoxSize + mSpace); for (int color : mColorList) { RectF rect = new RectF(x, y, x + mBoxSize, y + mBoxSize); mPaint.setColor(color); canvas.drawRoundRect(rect, mCornerRadius, mCornerRadius, mPaint); x += mBoxSize + mSpace; if (x > maxX) { x = mSpace; y += mBoxSize + mSpace; } } drawSelectedRect(canvas); } private void drawSelectedRect(Canvas canvas) { float padding = mSpace / 2f; float l = mSelectedBounds.left; float t = mSelectedBounds.top; float r = mSelectedBounds.right; float b = mSelectedBounds.bottom; RectF rect = new RectF(l - padding, t - padding, r + padding, b + padding); Paint.Style paintStyle = mPaint.getStyle(); setPaintStyleForSelectedBox(); canvas.drawRoundRect(rect, mCornerRadius, mCornerRadius, mPaint); mPaint.setStyle(paintStyle); } private void setPaintStyleForSelectedBox() { mPaint.setStyle(Paint.Style.STROKE); mPaint.setStrokeWidth(mStrokeWidth); mPaint.setColor(Color.WHITE); } private void setPaintStyleForBox() { mPaint.setStyle(Paint.Style.FILL); mPaint.setAntiAlias(true); } @Override public int getSelectedColor() { return mColorList[mSelectedColorIndex]; } @Override public boolean selectColor(float x, float y) { if (!mValid || mSelectedBounds.contains(x, y)) return false; int column = (int) (x / (mBoxSize + mSpace)); int row = (int) (y / (mBoxSize + mSpace)); if (0 > row || row >= mRows || 0 > column || column >= mColumns) return false; int i = row * mColumns + column; if (i >= mColorList.length || i == mSelectedColorIndex) return false; float left = mSpace + column * (mBoxSize + mSpace); float top = mSpace + row * (mBoxSize + mSpace); if (left > x || x > left + mBoxSize || top > y || y > top + mBoxSize) return false; mSelectedBounds.set(left, top, left + mBoxSize, top + mBoxSize); mSelectedColorIndex = i; return true; } @Override public boolean selectColor(int color) { for (int i = 0; i < mColorList.length; ++i) { if (color == mColorList[i]) { if (mValid) setSelectedColor(i); else mSelectedColorIndex = i; return true; } } return false; } private void setSelectedColor(int i) { int row = i / mColumns; int column = i - row * mColumns; float x = mSpace + column * (mBoxSize + mSpace); float y = mSpace + row * (mBoxSize + mSpace); mSelectedBounds.set(x, y, x + mBoxSize, y + mBoxSize); mSelectedColorIndex = i; } } ================================================ FILE: app/src/main/java/om/sstvencoder/ColorPalette/IColorPalette.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.ColorPalette; import android.graphics.Canvas; interface IColorPalette { void updateSize(float width, float height); void draw(Canvas canvas); int getSelectedColor(); boolean selectColor(float x, float y); boolean selectColor(int color); } ================================================ FILE: app/src/main/java/om/sstvencoder/CropView.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder; import android.content.Context; import android.content.ContextWrapper; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.BitmapRegionDecoder; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Rect; import android.graphics.RectF; import androidx.annotation.NonNull; import androidx.core.view.GestureDetectorCompat; import androidx.appcompat.widget.AppCompatImageView; import android.util.AttributeSet; import android.view.GestureDetector; import android.view.MotionEvent; import android.view.ScaleGestureDetector; import java.io.BufferedInputStream; import java.io.IOException; import java.io.InputStream; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.TextOverlay.Label; import om.sstvencoder.TextOverlay.LabelCollection; public class CropView extends AppCompatImageView { private class GestureListener extends GestureDetector.SimpleOnGestureListener { @Override public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { if (!mLongPress) { moveImage(distanceX, distanceY); return true; } return false; } @Override public void onLongPress(MotionEvent e) { mLongPress = false; if (!mInScale && mLabelCollection.moveLabelBegin(e.getX(), e.getY())) { invalidate(); mLongPress = true; } } @Override public boolean onSingleTapConfirmed(MotionEvent e) { if (!mLongPress) { editLabelBegin(e.getX(), e.getY()); return true; } return false; } } private class ScaleGestureListener extends ScaleGestureDetector.SimpleOnScaleGestureListener { @Override public boolean onScaleBegin(ScaleGestureDetector detector) { if (!mLongPress) { mInScale = true; return true; } return false; } @Override public boolean onScale(ScaleGestureDetector detector) { scaleImage(detector.getScaleFactor()); return true; } @Override public void onScaleEnd(ScaleGestureDetector detector) { mInScale = false; } } private GestureDetectorCompat mDetectorCompat; private ScaleGestureDetector mScaleDetector; private boolean mLongPress, mInScale; private ModeSize mModeSize; private final Paint mPaint, mRectPaint, mBorderPaint; private RectF mInputRect; private Rect mOutputRect; private BitmapRegionDecoder mRegionDecoder; private int mImageWidth, mImageHeight; private Bitmap mCacheBitmap; private boolean mSmallImage; private boolean mImageOK; private final Rect mCanvasDrawRect, mImageDrawRect; private int mOrientation; private Rect mCacheRect; private int mCacheSampleSize; private final BitmapFactory.Options mBitmapOptions; private LabelCollection mLabelCollection; public CropView(Context context, AttributeSet attrs) { super(context, attrs); mDetectorCompat = new GestureDetectorCompat(getContext(), new GestureListener()); mScaleDetector = new ScaleGestureDetector(getContext(), new ScaleGestureListener()); mBitmapOptions = new BitmapFactory.Options(); mPaint = new Paint(Paint.FILTER_BITMAP_FLAG); mRectPaint = new Paint(); mRectPaint.setStyle(Paint.Style.STROKE); mRectPaint.setStrokeWidth(1f); mBorderPaint = new Paint(); mBorderPaint.setColor(Color.BLACK); mCanvasDrawRect = new Rect(); mImageDrawRect = new Rect(); mCacheRect = new Rect(); mOutputRect = new Rect(); mSmallImage = false; mImageOK = false; mLabelCollection = new LabelCollection(); } public void setModeSize(ModeSize size) { mModeSize = size; mOutputRect = Utility.getEmbeddedRect(getWidth(), getHeight(), mModeSize.width(), mModeSize.height()); if (mImageOK) resetInputRect(); invalidate(); } private void resetInputRect() { float iw = mModeSize.width(); float ih = mModeSize.height(); float ow = mImageWidth; float oh = mImageHeight; if (iw * oh > ow * ih) { float right = (iw * oh) / ih; mInputRect = new RectF(0f, 0f, right, oh); mInputRect.offset((ow - right) / 2f, 0f); } else { float bottom = (ih * ow) / iw; mInputRect = new RectF(0f, 0f, ow, bottom); mInputRect.offset(0f, (oh - bottom) / 2f); } } public void rotateImage(int orientation) { if (!mImageOK) return; mOrientation += orientation; mOrientation %= 360; if (orientation == 90 || orientation == 270) { int tmp = mImageWidth; mImageWidth = mImageHeight; mImageHeight = tmp; } resetInputRect(); invalidate(); } public void resetImage() { if (!mImageOK) return; if (mOrientation == 90 || mOrientation == 270) { int tmp = mImageWidth; mImageWidth = mImageHeight; mImageHeight = tmp; } mOrientation = 0; resetInputRect(); invalidate(); } public void setNoBitmap() { mImageOK = false; mOrientation = 0; recycle(); invalidate(); } public void setBitmap(@NonNull InputStream stream) throws Exception { mImageOK = false; mOrientation = 0; recycle(); loadImage(stream); invalidate(); } private void loadImage(InputStream stream) throws Exception { BitmapFactory.Options options = new BitmapFactory.Options(); options.inJustDecodeBounds = true; byte[] streamBytes = null; String errorMessage = null; try { int length = stream.available(); if (length > 0) { streamBytes = new byte[length]; if (length == stream.read(streamBytes, 0, streamBytes.length)) { BitmapFactory.decodeByteArray(streamBytes, 0, streamBytes.length, options); } else streamBytes = null; } } catch (Exception ex) { errorMessage = ex.getMessage(); streamBytes = null; } mImageWidth = options.outWidth; mImageHeight = options.outHeight; if (streamBytes != null && mImageWidth > 0 && mImageHeight > 0) { mSmallImage = mImageWidth * mImageHeight < 1024 * 1024; if (mSmallImage) { mCacheBitmap = BitmapFactory.decodeByteArray(streamBytes, 0, streamBytes.length, null); } else { mRegionDecoder = BitmapRegionDecoder.newInstance(streamBytes, 0, streamBytes.length, true); mCacheRect.setEmpty(); } } if (mCacheBitmap == null && mRegionDecoder == null) { String message = errorMessage; if (message == null) { message = "Stream could not be decoded."; if (mImageWidth > 0 && mImageHeight > 0) { message += " Image size: " + mImageWidth + "x" + mImageHeight; } } throw new Exception(message); } mImageOK = true; resetInputRect(); } private void recycle() { if (mRegionDecoder != null) { mRegionDecoder.recycle(); mRegionDecoder = null; } if (mCacheBitmap != null) { mCacheBitmap.recycle(); mCacheBitmap = null; } } public void scaleImage(float scaleFactor) { if (!mImageOK) return; float newW = mInputRect.width() / scaleFactor; float newH = mInputRect.height() / scaleFactor; float dx = 0.5f * (mInputRect.width() - newW); float dy = 0.5f * (mInputRect.height() - newH); float max = 2f * Math.max(mImageWidth, mImageHeight); if (Math.min(newW, newH) >= 4f && Math.max(newW, newH) <= max) { mInputRect.inset(dx, dy); invalidate(); } } public void moveImage(float distanceX, float distanceY) { if (!mImageOK) return; float dx = (mInputRect.width() * distanceX) / mOutputRect.width(); float dy = (mInputRect.height() * distanceY) / mOutputRect.height(); float min_w = mInputRect.width() * 0.1f; float min_h = mInputRect.height() * 0.1f; dx = Math.max(min_w, mInputRect.right + dx) - mInputRect.right; dy = Math.max(min_h, mInputRect.bottom + dy) - mInputRect.bottom; dx = Math.min(mImageWidth - min_w, mInputRect.left + dx) - mInputRect.left; dy = Math.min(mImageHeight - min_h, mInputRect.top + dy) - mInputRect.top; mInputRect.offset(dx, dy); invalidate(); } @Override public boolean onTouchEvent(@NonNull MotionEvent e) { boolean consumed = false; if (mLongPress) { switch (e.getAction()) { case MotionEvent.ACTION_MOVE: mLabelCollection.moveLabel(e.getX(), e.getY()); invalidate(); consumed = true; break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: mLabelCollection.moveLabelEnd(); invalidate(); mLongPress = false; consumed = true; break; } } consumed = mScaleDetector.onTouchEvent(e) || consumed; return mDetectorCompat.onTouchEvent(e) || consumed || super.onTouchEvent(e); } @Override protected void onSizeChanged(int w, int h, int old_w, int old_h) { super.onSizeChanged(w, h, old_w, old_h); if (mModeSize != null) mOutputRect = Utility.getEmbeddedRect(w, h, mModeSize.width(), mModeSize.height()); mLabelCollection.update(w, h, Utility.getTextSizeFactor(w, h)); } @Override protected void onDraw(@NonNull Canvas canvas) { if (mImageOK) { maximizeImageToCanvasRect(); adjustCanvasAndImageRect(getWidth(), getHeight()); canvas.drawRect(mOutputRect, mBorderPaint); drawBitmap(canvas); } mLabelCollection.draw(canvas); drawModeRect(canvas); } private void maximizeImageToCanvasRect() { float l = mOutputRect.left * mInputRect.width() / mOutputRect.width(); float t = mOutputRect.top * mInputRect.height() / mOutputRect.height(); float r = (mOutputRect.right - getWidth()) * mInputRect.width() / mOutputRect.width(); float b = (mOutputRect.bottom - getHeight()) * mInputRect.height() / mOutputRect.height(); mImageDrawRect.left = Math.round(mInputRect.left - l); mImageDrawRect.top = Math.round(mInputRect.top - t); mImageDrawRect.right = Math.round(mInputRect.right - r); mImageDrawRect.bottom = Math.round(mInputRect.bottom - b); } private void adjustCanvasAndImageRect(int width, int height) { mCanvasDrawRect.set(0, 0, width, height); if (mImageDrawRect.left < 0) { mCanvasDrawRect.left -= (mImageDrawRect.left * mCanvasDrawRect.width()) / mImageDrawRect.width(); mImageDrawRect.left = 0; } if (mImageDrawRect.top < 0) { mCanvasDrawRect.top -= (mImageDrawRect.top * mCanvasDrawRect.height()) / mImageDrawRect.height(); mImageDrawRect.top = 0; } if (mImageDrawRect.right > mImageWidth) { mCanvasDrawRect.right -= ((mImageDrawRect.right - mImageWidth) * mCanvasDrawRect.width()) / mImageDrawRect.width(); mImageDrawRect.right = mImageWidth; } if (mImageDrawRect.bottom > mImageHeight) { mCanvasDrawRect.bottom -= ((mImageDrawRect.bottom - mImageHeight) * mCanvasDrawRect.height()) / mImageDrawRect.height(); mImageDrawRect.bottom = mImageHeight; } } private void drawModeRect(Canvas canvas) { mRectPaint.setColor(Color.BLUE); canvas.drawRect(mOutputRect, mRectPaint); mRectPaint.setColor(Color.GREEN); drawRectInset(canvas, mOutputRect, -1); mRectPaint.setColor(Color.RED); drawRectInset(canvas, mOutputRect, -2); } private void drawRectInset(Canvas canvas, Rect rect, int inset) { canvas.drawRect( rect.left + inset, rect.top + inset, rect.right - inset, rect.bottom - inset, mRectPaint); } private Rect getIntRect(RectF rect) { return new Rect( Math.round(rect.left), Math.round(rect.top), Math.round(rect.right), Math.round(rect.bottom)); } private int getSampleSize() { int sx = Math.round(mInputRect.width() / mModeSize.width()); int sy = Math.round(mInputRect.height() / mModeSize.height()); int scale = Math.max(1, Math.max(sx, sy)); return Integer.highestOneBit(scale); } public Bitmap getBitmap() { Bitmap result = Bitmap.createBitmap(mModeSize.width(), mModeSize.height(), Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(result); canvas.drawColor(Color.BLACK); if (mImageOK) { mImageDrawRect.set(getIntRect(mInputRect)); adjustCanvasAndImageRect(mModeSize.width(), mModeSize.height()); drawBitmap(canvas); } mLabelCollection.draw(canvas, mOutputRect, new Rect(0, 0, mModeSize.width(), mModeSize.height())); return result; } private void drawBitmap(Canvas canvas) { canvas.save(); canvas.rotate(mOrientation); rotateDrawRectangles(); if (!mSmallImage) { updateCache(); mImageDrawRect.offset(-mCacheRect.left, -mCacheRect.top); mImageDrawRect.left /= mCacheSampleSize; mImageDrawRect.top /= mCacheSampleSize; mImageDrawRect.right /= mCacheSampleSize; mImageDrawRect.bottom /= mCacheSampleSize; } canvas.drawBitmap(mCacheBitmap, mImageDrawRect, mCanvasDrawRect, mPaint); canvas.restore(); } private void rotateDrawRectangles() { int w = mImageWidth; int h = mImageHeight; for (int i = 0; i < mOrientation / 90; ++i) { int tmp = w; w = h; h = tmp; mImageDrawRect.set( mImageDrawRect.top, h - mImageDrawRect.left, mImageDrawRect.bottom, h - mImageDrawRect.right); mCanvasDrawRect.set( mCanvasDrawRect.top, -mCanvasDrawRect.right, mCanvasDrawRect.bottom, -mCanvasDrawRect.left); } mImageDrawRect.sort(); } private void updateCache() { int sampleSize = getSampleSize(); if (sampleSize >= mCacheSampleSize && mCacheRect.contains(mImageDrawRect)) return; if (mCacheBitmap != null) mCacheBitmap.recycle(); int cacheWidth = mImageDrawRect.width(); int cacheHeight = mImageDrawRect.height(); while (cacheWidth * cacheHeight < (sampleSize * 1024 * sampleSize * 1024)) { cacheWidth += mImageDrawRect.width(); cacheHeight += mImageDrawRect.height(); } int left = ~(sampleSize - 1) & (mImageDrawRect.centerX() - cacheWidth / 2); int top = ~(sampleSize - 1) & (mImageDrawRect.centerY() - cacheHeight / 2); int right = ~(sampleSize - 1) & (mImageDrawRect.centerX() + cacheWidth / 2 + sampleSize - 1); int bottom = ~(sampleSize - 1) & (mImageDrawRect.centerY() + cacheHeight / 2 + sampleSize - 1); mCacheRect.set( Math.max(0, left), Math.max(0, top), Math.min(mRegionDecoder.getWidth(), right), Math.min(mRegionDecoder.getHeight(), bottom)); mBitmapOptions.inSampleSize = mCacheSampleSize = sampleSize; mCacheBitmap = mRegionDecoder.decodeRegion(mCacheRect, mBitmapOptions); } private void editLabelBegin(float x, float y) { Label label = mLabelCollection.editLabelBegin(x, y); GetActivity().startEditTextActivity(label); } public void editLabelEnd(Label label) { mLabelCollection.editLabelEnd(label); invalidate(); } public LabelCollection getLabels() { return mLabelCollection; } private MainActivity GetActivity() { MainActivity activity; Context context = getContext(); if (!(context instanceof MainActivity)) context = ((ContextWrapper) context).getBaseContext(); activity = (MainActivity) context; return activity; } } ================================================ FILE: app/src/main/java/om/sstvencoder/EditTextActivity.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder; import android.content.Intent; import android.graphics.Color; import android.graphics.drawable.Drawable; import androidx.annotation.ColorInt; import androidx.fragment.app.DialogFragment; import androidx.core.content.ContextCompat; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.text.Editable; import android.text.TextWatcher; import android.view.Menu; import android.view.MenuItem; import android.view.MotionEvent; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.CheckBox; import android.widget.EditText; import android.widget.Spinner; import java.util.List; import om.sstvencoder.TextOverlay.Label; public class EditTextActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener, ColorFragment.OnColorSelectedListener { private enum EditColorMode { None, Text, Outline } public static final int REQUEST_CODE = 101; public static final String EXTRA = "EDIT_TEXT_EXTRA"; private Label mLabel; private EditColorMode mEditColor; private List mFontFamilyNameList; private CheckBox mEditItalic, mEditBold, mEditOutline; private int mClearTextButtonWidth; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_edit_text); mEditColor = EditColorMode.None; mEditBold = findViewById(R.id.edit_bold); mEditItalic = findViewById(R.id.edit_italic); mEditOutline = findViewById(R.id.edit_outline); } @Override protected void onStart() { super.onStart(); mLabel = ((Label) getIntent().getSerializableExtra(EXTRA)).getClone(); initText(); initTextSizeSpinner(mLabel.getTextSize()); mEditBold.setChecked(mLabel.getBold()); mEditItalic.setChecked(mLabel.getItalic()); initFontFamilySpinner(mLabel.getFamilyName()); mEditOutline.setChecked(mLabel.getOutline()); initOutlineSizeSpinner(mLabel.getOutlineSize()); findViewById(R.id.edit_color).setBackgroundColor(mLabel.getForeColor()); findViewById(R.id.edit_outline_color).setBackgroundColor(mLabel.getOutlineColor()); enableOutline(mEditOutline.isChecked()); } private void initText() { EditText editText = findViewById(R.id.edit_text); int clearTextIcon = android.R.drawable.ic_menu_close_clear_cancel; Drawable drawable = ContextCompat.getDrawable(this, clearTextIcon); editText.setText(mLabel.getText()); editText.setCompoundDrawablesWithIntrinsicBounds(null, null, drawable, null); mClearTextButtonWidth = 2 * drawable.getIntrinsicWidth(); editText.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) { } @Override public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) { mLabel.setText(charSequence.toString()); } @Override public void afterTextChanged(Editable editable) { } }); editText.setOnTouchListener(new View.OnTouchListener() { private boolean mClear; @Override public boolean onTouch(View view, MotionEvent e) { switch (e.getAction()) { case MotionEvent.ACTION_DOWN: if (HitClearTextButton(view, e)) { mClear = true; return true; } break; case MotionEvent.ACTION_MOVE: if (!HitClearTextButton(view, e)) mClear = false; break; case MotionEvent.ACTION_UP: if (HitClearTextButton(view, e) && mClear) { ((EditText) view).setText(""); return true; } mClear = false; break; case MotionEvent.ACTION_CANCEL: mClear = false; break; } return false; } private boolean HitClearTextButton(View view, MotionEvent e) { int left = view.getRight() - mClearTextButtonWidth; return left < e.getX(); } }); } private void initFontFamilySpinner(String familyName) { Spinner spinner = findViewById(R.id.edit_font_family); spinner.setOnItemSelectedListener(this); mFontFamilyNameList = Utility.getSystemFontFamilyList(); spinner.setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_spinner_dropdown_item, mFontFamilyNameList)); spinner.setSelection(mFontFamilyNameList.indexOf(familyName)); } private void initTextSizeSpinner(float textSize) { Spinner spinner = findViewById(R.id.edit_text_size); spinner.setOnItemSelectedListener(this); String[] sizeList = new String[] { getString(R.string.font_size_small), getString(R.string.font_size_normal), getString(R.string.font_size_large), getString(R.string.font_size_huge) }; spinner.setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_spinner_dropdown_item, sizeList)); spinner.setSelection(textSizeToPosition(textSize)); } private void initOutlineSizeSpinner(float outlineSize) { Spinner spinner = findViewById(R.id.edit_outline_size); spinner.setOnItemSelectedListener(this); String[] sizeList = new String[] { getString(R.string.outline_size_thin), getString(R.string.outline_size_normal), getString(R.string.outline_size_thick) }; spinner.setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_spinner_dropdown_item, sizeList)); spinner.setSelection(outlineSizeToPosition(outlineSize)); } private int textSizeToPosition(float textSize) { int position = (int) (textSize - 1f); if (0 <= position && position <= 3) return position; mLabel.setTextSize(Label.TEXT_SIZE_NORMAL); return 1; } private float positionToTextSize(int position) { return position + 1f; } private int outlineSizeToPosition(float outlineSize) { int position = (int) (outlineSize * 2f / Label.OUTLINE_SIZE_NORMAL - 1f); if (0 <= position && position <= 2) return position; mLabel.setOutlineSize(Label.OUTLINE_SIZE_NORMAL); return 1; } private float positionToOutlineSize(int position) { return Label.OUTLINE_SIZE_NORMAL * 0.5f * (position + 1f); } @Override public void onItemSelected(AdapterView parent, View view, int position, long id) { int parentId = parent.getId(); if (parentId == R.id.edit_text_size) { mLabel.setTextSize(positionToTextSize(position)); } else if (parentId == R.id.edit_outline_size) { mLabel.setOutlineSize(positionToOutlineSize(position)); } else if (parentId == R.id.edit_font_family) { mLabel.setFamilyName(mFontFamilyNameList.get(position)); } } private void enableOutline(boolean enabled) { findViewById(R.id.text_outline_size).setEnabled(enabled); findViewById(R.id.edit_outline_size).setEnabled(enabled); findViewById(R.id.text_outline_color).setEnabled(enabled); findViewById(R.id.edit_outline_color).setEnabled(enabled); @ColorInt int color = enabled ? mLabel.getOutlineColor() : Color.DKGRAY; findViewById(R.id.edit_outline_color).setBackgroundColor(color); } @Override public void onNothingSelected(AdapterView parent) { } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.menu_edit_text, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); if (id == R.id.action_done) { done(); return true; } return super.onOptionsItemSelected(item); } public void onBoldClick(View view) { mLabel.setBold(mEditBold.isChecked()); } public void onItalicClick(View view) { mLabel.setItalic(mEditItalic.isChecked()); } public void onOutlineClick(View view) { if (view.getId() == R.id.text_outline) mEditOutline.setChecked(!mEditOutline.isChecked()); boolean outline = mEditOutline.isChecked(); mLabel.setOutline(outline); enableOutline(outline); } public void onColorClick(View view) { showColorDialog(R.string.color, mLabel.getForeColor()); mEditColor = EditColorMode.Text; } public void onOutlineColorClick(View view) { if (mEditOutline.isChecked()) { showColorDialog(R.string.outline_color, mLabel.getOutlineColor()); mEditColor = EditColorMode.Outline; } } private void showColorDialog(int title, int color) { ColorFragment fragment = new ColorFragment(); fragment.setTitle(title); fragment.setColor(color); fragment.addOnColorSelectedListener(this); fragment.show(getSupportFragmentManager(), ColorFragment.class.getName()); } @Override public void onColorSelected(DialogFragment fragment, int color) { switch (mEditColor) { case Text: mLabel.setForeColor(color); findViewById(R.id.edit_color).setBackgroundColor(color); break; case Outline: mLabel.setOutlineColor(color); findViewById(R.id.edit_outline_color).setBackgroundColor(color); break; } mEditColor = EditColorMode.None; } @Override public void onCancel(DialogFragment fragment) { mEditColor = EditColorMode.None; } private void done() { Intent intent = new Intent(); intent.putExtra(EXTRA, mLabel); setResult(RESULT_OK, intent); finish(); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Encoder.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder; import android.graphics.Bitmap; import java.util.LinkedList; import java.util.List; import om.sstvencoder.ModeInterfaces.IMode; import om.sstvencoder.ModeInterfaces.IModeInfo; import om.sstvencoder.Modes.ModeFactory; import om.sstvencoder.Output.IOutput; import om.sstvencoder.Output.OutputFactory; import om.sstvencoder.Output.WaveFileOutputContext; // Creates IMode instance class Encoder { private final MainActivityMessenger mMessenger; private final Thread mThread; private Thread mSaveWaveThread; private final List mQueue; private final ProgressBarWrapper mProgressBar, mProgressBar2; private boolean mQuit, mStop; private Class mModeClass; Encoder(MainActivityMessenger messenger, ProgressBarWrapper progressBar, ProgressBarWrapper progressBar2) { mMessenger = messenger; mProgressBar = progressBar; mProgressBar2 = progressBar2; mQueue = new LinkedList<>(); mQuit = false; mStop = false; mModeClass = ModeFactory.getDefaultMode(); mThread = new Thread() { @Override public void run() { while (true) { IMode mode; synchronized (this) { while (mQueue.isEmpty() && !mQuit) { try { wait(); } catch (Exception ignore) { } } if (mQuit) return; mStop = false; mode = mQueue.remove(0); } mode.init(); mProgressBar.begin(mode.getProcessCount(), mMessenger.getString(R.string.progressbar_message_sending)); while (mode.process()) { mProgressBar.step(); synchronized (this) { if (mQuit || mStop) break; } } mode.finish(mStop); mProgressBar.end(); } } }; mThread.start(); } boolean setMode(String className) { try { mModeClass = Class.forName(className); } catch (Exception ignore) { return false; } return true; } IModeInfo getModeInfo() { return ModeFactory.getModeInfo(mModeClass); } IModeInfo[] getModeInfoList() { return ModeFactory.getModeInfoList(); } void play(Bitmap bitmap) { IOutput output = OutputFactory.createOutputForSending(); IMode mode = ModeFactory.CreateMode(mModeClass, bitmap, output); if (mode != null) enqueue(mode); } void save(Bitmap bitmap, WaveFileOutputContext context) { if (mSaveWaveThread != null && mSaveWaveThread.isAlive()) return; IOutput output = OutputFactory.createOutputForSavingAsWave(context); IMode mode = ModeFactory.CreateMode(mModeClass, bitmap, output); if (mode != null) save(mode, context); } private void save(final IMode mode, final WaveFileOutputContext context) { mSaveWaveThread = new Thread() { @Override public void run() { mode.init(); mProgressBar2.begin(mode.getProcessCount(), mMessenger.getString(R.string.progressbar_message_saving_to_file, context.getFileName())); while (mode.process()) { mProgressBar2.step(); synchronized (this) { if (mQuit) break; } } mode.finish(mQuit); mProgressBar2.end(); if (!mQuit) mMessenger.carrySaveAsWaveIsDoneMessage(context); } }; mSaveWaveThread.start(); } void stop() { synchronized (mThread) { mStop = true; int size = mQueue.size(); for (int i = 0; i < size; ++i) mQueue.remove(0).finish(true); } } private void enqueue(IMode mode) { synchronized (mThread) { mQueue.add(mode); mThread.notify(); } } void destroy() { synchronized (mThread) { mQuit = true; mThread.notify(); } } } ================================================ FILE: app/src/main/java/om/sstvencoder/FontFamilySet.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder; import androidx.annotation.NonNull; import android.content.Context; import android.util.Xml; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserException; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.util.ArrayList; import java.util.List; class FontFamilySet { class FontFamily { String name; String displayName; boolean bold; boolean italic; } private final List mFamilySet; private final Context mContext; FontFamilySet(Context context) { mContext = context; mFamilySet = new ArrayList<>(); fillWithSystemFonts(mFamilySet); if (mFamilySet.size() == 0) mFamilySet.add(getDefaultFontFamily()); } @NonNull private FontFamily getDefaultFontFamily() { FontFamily defaultFontFamily = new FontFamily(); defaultFontFamily.name = null; defaultFontFamily.displayName = mContext.getString(R.string.font_default); defaultFontFamily.bold = true; defaultFontFamily.italic = true; return defaultFontFamily; } @NonNull FontFamily getFontFamily(String name) { if (name != null) { for (FontFamily fontFamily : mFamilySet) { if (name.equals(fontFamily.name)) return fontFamily; } } return mFamilySet.get(0); } @NonNull FontFamily getFontFamilyFromDisplayName(@NonNull String displayName) { for (FontFamily fontFamily : mFamilySet) { if (displayName.equals(fontFamily.displayName)) return fontFamily; } return mFamilySet.get(0); } @NonNull List getFontFamilyDisplayNameList() { List names = new ArrayList<>(); for (FontFamily fontFamily : mFamilySet) names.add(fontFamily.displayName); return names; } private void fillWithSystemFonts(@NonNull List familySet) { File fontsFile = new File("/system/etc/system_fonts.xml"); if (!fontsFile.exists()) { fontsFile = new File("/system/etc/fonts.xml"); if (!fontsFile.exists()) return; } InputStream in = null; try { in = new FileInputStream(fontsFile); XmlPullParser parser = Xml.newPullParser(); parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false); parser.setInput(in, null); parser.next(); if (parser.getEventType() == XmlPullParser.START_TAG && parser.getName().equals("familyset")) readFamilySet(parser, familySet); } catch (Exception ignore) { } finally { if (in != null) { try { in.close(); } catch (Exception ignore) { } } } } private void readFamilySet(@NonNull XmlPullParser parser, @NonNull List familySet) throws XmlPullParserException, IOException { while (parser.next() != XmlPullParser.END_TAG) { if (parser.getEventType() == XmlPullParser.START_TAG && parser.getName().equals("family")) { FontFamily fontFamily = readFamily(parser); if (fontFamily.displayName != null) familySet.add(fontFamily); } } } @NonNull private FontFamily readFamily(@NonNull XmlPullParser parser) throws XmlPullParserException, IOException { FontFamily fontFamily = new FontFamily(); while (parser.next() != XmlPullParser.END_TAG) { if (parser.getEventType() == XmlPullParser.START_TAG) { switch (parser.getName()) { case "nameset": readNameSet(parser, fontFamily); break; case "fileset": readFileSet(parser, fontFamily); break; } } } return fontFamily; } private void readNameSet(@NonNull XmlPullParser parser, @NonNull FontFamily fontFamily) throws XmlPullParserException, IOException { while (parser.next() != XmlPullParser.END_TAG) { if (parser.getEventType() == XmlPullParser.START_TAG && parser.getName().equals("name")) { if (fontFamily.name == null) fontFamily.name = readText(parser); else { // skip all other names parser.next(); parser.next(); } } } } private void readFileSet(@NonNull XmlPullParser parser, @NonNull FontFamily fontFamily) throws XmlPullParserException, IOException { while (parser.next() != XmlPullParser.END_TAG) { if (parser.getEventType() == XmlPullParser.START_TAG && parser.getName().equals("file")) parseDisplayNameAndStyle(readText(parser), fontFamily); } } private void parseDisplayNameAndStyle(String fontFileName, @NonNull FontFamily fontFamily) { // Example: RobotoCondensed-LightItalic.ttf // { "RobotoCondensed", "LightItalic" } String[] familyInfo = fontFileName.split("\\.")[0].split("-"); String s = ""; if (familyInfo.length > 1) { s = familyInfo[1]; if (s.contains("Bold")) fontFamily.bold = true; if (s.contains("Italic")) fontFamily.italic = true; } if (fontFamily.displayName == null) { // "Light" s = s.replace("Regular", "").replace("Bold", "").replace("Italic", ""); // "Roboto Condensed Light" fontFamily.displayName = (familyInfo[0] + s).replaceAll("(\\p{Ll})(\\p{Lu})", "$1 $2"); } } private String readText(@NonNull XmlPullParser parser) throws IOException, XmlPullParserException { String text = ""; if (parser.next() == XmlPullParser.TEXT) { text = parser.getText(); parser.next(); } return text; } } ================================================ FILE: app/src/main/java/om/sstvencoder/MainActivity.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder; import android.Manifest; import android.app.AlertDialog; import android.content.ContentResolver; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.PackageManager; import android.database.Cursor; import androidx.exifinterface.media.ExifInterface; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.provider.MediaStore; import androidx.annotation.NonNull; import androidx.core.app.ActivityCompat; import androidx.core.content.ContextCompat; import androidx.appcompat.app.AppCompatActivity; import android.system.ErrnoException; import android.system.OsConstants; import android.view.Menu; import android.view.MenuItem; import android.view.SubMenu; import android.widget.ProgressBar; import android.widget.TextView; import android.widget.Toast; import java.io.InputStream; import om.sstvencoder.ModeInterfaces.IModeInfo; import om.sstvencoder.Output.WaveFileOutputContext; import om.sstvencoder.TextOverlay.Label; public class MainActivity extends AppCompatActivity { private static final String CLASS_NAME = "ClassName"; private static final int REQUEST_LOAD_IMAGE_PERMISSION = 1; private static final int REQUEST_SAVE_WAVE_PERMISSION = 2; private static final int REQUEST_IMAGE_CAPTURE_PERMISSION = 3; private static final int REQUEST_PICK_IMAGE = 11; private static final int REQUEST_IMAGE_CAPTURE = 12; private Settings mSettings; private TextOverlayTemplate mTextOverlayTemplate; private CropView mCropView; private Encoder mEncoder; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mCropView = findViewById(R.id.cropView); mEncoder = new Encoder(new MainActivityMessenger(this), getProgressBar(), getProgressBar2()); mSettings = new Settings(this); mSettings.load(); mTextOverlayTemplate = new TextOverlayTemplate(); mTextOverlayTemplate.load(mCropView.getLabels(), mSettings.getTextOverlayFile()); setMode(mSettings.getModeClassName()); loadImage(getIntent()); } private ProgressBarWrapper getProgressBar() { ProgressBar progressBar = findViewById(R.id.progressBar); TextView progressBarText = findViewById(R.id.progressBarText); return new ProgressBarWrapper(progressBar, progressBarText); } private ProgressBarWrapper getProgressBar2() { ProgressBar progressBar = findViewById(R.id.progressBar2); TextView progressBarText = findViewById(R.id.progressBarText2); return new ProgressBarWrapper(progressBar, progressBarText); } @Override protected void onNewIntent(Intent intent) { loadImage(intent); super.onNewIntent(intent); } private void loadImage(Intent intent) { Uri uri = getImageUriFromIntent(intent); boolean verbose = true; if (uri == null) { // SecurityException in loadImage for Build.VERSION.SDK_INT >= Build.VERSION_CODES.M // uri = mSettings.getImageUri(); verbose = false; } loadImage(uri, verbose); } private Uri getImageUriFromIntent(Intent intent) { Uri uri = null; if (isIntentTypeValid(intent.getType()) && isIntentActionValid(intent.getAction())) { uri = intent.hasExtra(Intent.EXTRA_STREAM) ? (Uri) intent.getParcelableExtra(Intent.EXTRA_STREAM) : intent.getData(); if (uri == null) { String s = getString(R.string.load_img_err_txt_unsupported); showErrorMessage(getString(R.string.load_img_err_title), s, s + "\n\n" + intent); } } return uri; } // Set verbose to false for any Uri that might have expired (e.g. shared from browser). private boolean loadImage(Uri uri, boolean verbose) { boolean succeeded = false; ContentResolver resolver = getContentResolver(); if (uri != null) { try { InputStream stream = resolver.openInputStream(uri); if (stream != null) mCropView.setBitmap(stream); succeeded = true; } catch (Exception ex) { // e.g. FileNotFoundException, SecurityException if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && isPermissionException(ex) && needsRequestReadPermission()) { requestReadPermission(REQUEST_LOAD_IMAGE_PERMISSION); } else showFileNotLoadedMessage(ex, verbose); } } if (succeeded) { mCropView.rotateImage(getOrientation(resolver, uri)); mSettings.setImageUri(uri); } else setDefaultBitmap(); return succeeded; } private void setDefaultBitmap() { try { mCropView.setBitmap(getResources().openRawResource(R.raw.smpte_color_bars)); } catch (Exception ignore) { mCropView.setNoBitmap(); } mSettings.setImageUri(null); } private boolean isIntentActionValid(String action) { return Intent.ACTION_SEND.equals(action); } private boolean isIntentTypeValid(String type) { return type != null && type.startsWith("image/"); } private boolean isPermissionException(Exception ex) { return ex.getCause() instanceof ErrnoException && ((ErrnoException) ex.getCause()).errno == OsConstants.EACCES; } private boolean needsRequestReadPermission() { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) return false; String permission = Manifest.permission.READ_EXTERNAL_STORAGE; int state = ContextCompat.checkSelfPermission(this, permission); return state != PackageManager.PERMISSION_GRANTED; } private boolean needsRequestWritePermission() { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M || Build.VERSION.SDK_INT > Build.VERSION_CODES.Q) return false; String permission = Manifest.permission.WRITE_EXTERNAL_STORAGE; int state = ContextCompat.checkSelfPermission(this, permission); return state != PackageManager.PERMISSION_GRANTED; } private void requestReadPermission(int requestCode) { String[] permissions = new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}; ActivityCompat.requestPermissions(this, permissions, requestCode); } private void requestWritePermission(int requestCode) { String[] permissions = new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}; ActivityCompat.requestPermissions(this, permissions, requestCode); } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { switch (requestCode) { case REQUEST_LOAD_IMAGE_PERMISSION: if (permissionGranted(grantResults)) loadImage(mSettings.getImageUri(), false); else setDefaultBitmap(); break; case REQUEST_IMAGE_CAPTURE_PERMISSION: if (permissionGranted(grantResults)) dispatchTakePictureIntent(); break; case REQUEST_SAVE_WAVE_PERMISSION: if (permissionGranted(grantResults)) save(); break; default: break; } super.onRequestPermissionsResult(requestCode, permissions, grantResults); } private boolean permissionGranted(@NonNull int[] grantResults) { return grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED; } private void showFileNotLoadedMessage(Exception ex, boolean verbose) { String s; if (verbose) s = getString(R.string.load_img_err_title) + ": \n" + ex.getMessage(); else s = getString(R.string.message_prev_img_not_loaded); Toast.makeText(this, s, Toast.LENGTH_LONG).show(); } private void showErrorMessage(final String title, final String shortText, final String longText) { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle(title); builder.setMessage(shortText); builder.setNeutralButton(getString(R.string.btn_ok), null); builder.setPositiveButton(getString(R.string.btn_send_email), new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { String device = Build.MANUFACTURER + ", " + Build.BRAND + ", " + Build.MODEL + ", " + Build.VERSION.RELEASE; String text = longText + "\n\n" + BuildConfig.VERSION_NAME + ", " + device; Intent intent = Utility.createEmailIntent(getString(R.string.email_subject), text); startActivity(Intent.createChooser(intent, getString(R.string.chooser_title))); } }); builder.show(); } private void showOrientationErrorMessage(Uri uri, Exception ex) { String title = getString(R.string.load_img_orientation_err_title); String longText = title + "\n\n" + Utility.createMessage(ex) + "\n\n" + uri; showErrorMessage(title, ex.getMessage(), longText); } public int getOrientation(ContentResolver resolver, Uri uri) { int orientation = 0; try { Cursor cursor = resolver.query(uri, new String[]{MediaStore.Images.ImageColumns.ORIENTATION}, null, null, null); if (cursor.moveToFirst()) orientation = cursor.getInt(0); cursor.close(); } catch (Exception ignore) { orientation = getExifOrientation(resolver, uri); } return orientation; } private int getExifOrientation(ContentResolver resolver, Uri uri) { int orientation = 0; InputStream in = null; try { in = resolver.openInputStream(uri); int orientationAttribute = (new ExifInterface(in)).getAttributeInt(ExifInterface.TAG_ORIENTATION, 0); orientation = Utility.convertToDegrees(orientationAttribute); } catch (Exception ex) { showOrientationErrorMessage(uri, ex); } finally { if (in != null) { try { in.close(); } catch (Exception ignore) { } } } return orientation; } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.menu_main, menu); createModesMenu(menu); return true; } private void createModesMenu(Menu menu) { SubMenu modesSubMenu = menu.findItem(R.id.action_modes).getSubMenu(); IModeInfo[] modeInfoList = mEncoder.getModeInfoList(); for (IModeInfo modeInfo : modeInfoList) { MenuItem item = modesSubMenu.add(modeInfo.getModeName()); Intent intent = new Intent(); intent.putExtra(CLASS_NAME, modeInfo.getModeClassName()); item.setIntent(intent); } } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); if (id == R.id.action_pick_picture) { dispatchPickPictureIntent(); } else if (id == R.id.action_take_picture) { takePicture(); } else if (id == R.id.action_save_wave) { if (needsRequestWritePermission()) requestWritePermission(REQUEST_SAVE_WAVE_PERMISSION); else save(); } else if (id == R.id.action_play) { play(); } else if (id == R.id.action_stop) { mEncoder.stop(); } else if (id == R.id.action_rotate) { mCropView.rotateImage(90); } else if (id == R.id.action_reset) { mCropView.resetImage(); } else if (id == R.id.action_privacy_policy) { openLinkInBrowser("https://sites.google.com/view/olgamiller/sstvencoder/privacypolicy/"); } else if (id == R.id.action_about) { showTextPage(getString(R.string.action_about), getString(R.string.action_about_text, BuildConfig.VERSION_NAME)); } else if (id != R.id.action_modes && id != R.id.action_transform) { String className = item.getIntent().getStringExtra(CLASS_NAME); setMode(className); } return true; } private void openLinkInBrowser(String link) { Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(link)); if (intent.resolveActivity(getPackageManager()) != null) { startActivity(intent); } else { showErrorMessage(getString(R.string.another_activity_start_err), link, ""); } } private void showTextPage(String title, String message) { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle(title); builder.setMessage(message); builder.setNeutralButton(R.string.btn_ok, null); builder.show(); } private void setMode(String modeClassName) { if (mEncoder.setMode(modeClassName)) { IModeInfo modeInfo = mEncoder.getModeInfo(); mCropView.setModeSize(modeInfo.getModeSize()); setTitle(modeInfo.getModeName()); mSettings.setModeClassName(modeClassName); } } private void takePicture() { if (!hasCamera()) { Toast.makeText(this, getString(R.string.message_no_camera), Toast.LENGTH_LONG).show(); return; } if (needsRequestWritePermission()) requestWritePermission(REQUEST_IMAGE_CAPTURE_PERMISSION); else dispatchTakePictureIntent(); } private boolean hasCamera() { return getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_ANY); } public void startEditTextActivity(@NonNull Label label) { Intent intent = new Intent(this, EditTextActivity.class); intent.putExtra(EditTextActivity.EXTRA, label); tryToStartActivityForResult(intent, EditTextActivity.REQUEST_CODE); } private void dispatchTakePictureIntent() { Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); Uri uri = Utility.createImageUri(this); if (uri != null) { mSettings.setImageUri(uri); intent.putExtra(MediaStore.EXTRA_OUTPUT, uri); tryToStartActivityForResult(intent, REQUEST_IMAGE_CAPTURE); } } private void dispatchPickPictureIntent() { Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI); tryToStartActivityForResult(intent, REQUEST_PICK_IMAGE); } private void tryToStartActivityForResult(Intent intent, int requestCode) { if (intent.resolveActivity(getPackageManager()) == null) { Toast.makeText(this, R.string.another_activity_resolve_err, Toast.LENGTH_LONG).show(); return; } try { startActivityForResult(intent, requestCode); } catch (Exception ignore) { Toast.makeText(this, R.string.another_activity_start_err, Toast.LENGTH_LONG).show(); } } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { switch (requestCode) { case EditTextActivity.REQUEST_CODE: Label label = null; if (resultCode == RESULT_OK && data != null) label = (Label) data.getSerializableExtra(EditTextActivity.EXTRA); mCropView.editLabelEnd(label); break; case REQUEST_IMAGE_CAPTURE: if (resultCode == RESULT_OK) { Uri uri = mSettings.getImageUri(); if (loadImage(uri, true)) addImageToGallery(uri); } break; case REQUEST_PICK_IMAGE: if (resultCode == RESULT_OK && data != null) loadImage(data.getData(), true); break; default: super.onActivityResult(requestCode, resultCode, data); break; } } private void addImageToGallery(Uri uri) { Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); intent.setData(uri); sendBroadcast(intent); } private void play() { mEncoder.play(mCropView.getBitmap()); } private void save() { if (Utility.isExternalStorageWritable()) { WaveFileOutputContext context = new WaveFileOutputContext(getContentResolver(), Utility.createWaveFileName()); mEncoder.save(mCropView.getBitmap(), context); } } public void completeSaving(WaveFileOutputContext context) { context.update(); } @Override protected void onPause() { super.onPause(); mSettings.save(); mTextOverlayTemplate.save(mCropView.getLabels(), mSettings.getTextOverlayFile()); } @Override protected void onDestroy() { super.onDestroy(); mEncoder.destroy(); } } ================================================ FILE: app/src/main/java/om/sstvencoder/MainActivityMessenger.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder; import android.os.Handler; import om.sstvencoder.Output.WaveFileOutputContext; class MainActivityMessenger { private final MainActivity mMainActivity; private final Handler mHandler; MainActivityMessenger(MainActivity activity) { mMainActivity = activity; mHandler = new Handler(); } void carrySaveAsWaveIsDoneMessage(final WaveFileOutputContext context) { mHandler.post(new Runnable() { @Override public void run() { mMainActivity.completeSaving(context); } }); } public String getString(int resId, Object... formatArgs) { return mMainActivity.getString(resId, formatArgs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/ModeInterfaces/IMode.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.ModeInterfaces; public interface IMode { void init(); int getProcessCount(); boolean process(); void finish(boolean cancel); } ================================================ FILE: app/src/main/java/om/sstvencoder/ModeInterfaces/IModeInfo.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.ModeInterfaces; public interface IModeInfo { String getModeName(); String getModeClassName(); ModeSize getModeSize(); } ================================================ FILE: app/src/main/java/om/sstvencoder/ModeInterfaces/ModeSize.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.ModeInterfaces; import java.lang.annotation.ElementType; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.lang.annotation.Target; @Target({ElementType.TYPE}) @Retention(RetentionPolicy.RUNTIME) public @interface ModeSize { int width(); int height(); } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/ImageFormats/NV21.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes.ImageFormats; import android.graphics.Bitmap; class NV21 extends Yuv { NV21(Bitmap bitmap) { super(bitmap); } protected void convertBitmapToYuv(Bitmap bitmap) { mYuv = new byte[(3 * mWidth * mHeight) / 2]; int pos = 0; for (int h = 0; h < mHeight; ++h) for (int w = 0; w < mWidth; ++w) mYuv[pos++] = (byte) YuvConverter.convertToY(bitmap.getPixel(w, h)); for (int h = 0; h < mHeight; h += 2) { for (int w = 0; w < mWidth; w += 2) { int v0 = YuvConverter.convertToV(bitmap.getPixel(w, h)); int v1 = YuvConverter.convertToV(bitmap.getPixel(w + 1, h)); int v2 = YuvConverter.convertToV(bitmap.getPixel(w, h + 1)); int v3 = YuvConverter.convertToV(bitmap.getPixel(w + 1, h + 1)); mYuv[pos++] = (byte) ((v0 + v1 + v2 + v3) / 4); int u0 = YuvConverter.convertToU(bitmap.getPixel(w, h)); int u1 = YuvConverter.convertToU(bitmap.getPixel(w + 1, h)); int u2 = YuvConverter.convertToU(bitmap.getPixel(w, h + 1)); int u3 = YuvConverter.convertToU(bitmap.getPixel(w + 1, h + 1)); mYuv[pos++] = (byte) ((u0 + u1 + u2 + u3) / 4); } } } public int getY(int x, int y) { return 255 & mYuv[mWidth * y + x]; } public int getU(int x, int y) { return 255 & mYuv[mWidth * mHeight + mWidth * (y >> 1) + (x | 1)]; } public int getV(int x, int y) { return 255 & mYuv[mWidth * mHeight + mWidth * (y >> 1) + (x & ~1)]; } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/ImageFormats/YUV440P.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes.ImageFormats; import android.graphics.Bitmap; class YUV440P extends Yuv { YUV440P(Bitmap bitmap) { super(bitmap); } protected void convertBitmapToYuv(Bitmap bitmap) { mYuv = new byte[2 * mWidth * mHeight]; int pos = 0; for (int h = 0; h < mHeight; ++h) for (int w = 0; w < mWidth; ++w) mYuv[pos++] = (byte) YuvConverter.convertToY(bitmap.getPixel(w, h)); for (int h = 0; h < mHeight; h += 2) { for (int w = 0; w < mWidth; ++w) { int u0 = YuvConverter.convertToU(bitmap.getPixel(w, h)); int u1 = YuvConverter.convertToU(bitmap.getPixel(w, h + 1)); mYuv[pos++] = (byte) ((u0 + u1) / 2); } } for (int h = 0; h < mHeight; h += 2) { for (int w = 0; w < mWidth; ++w) { int v0 = YuvConverter.convertToV(bitmap.getPixel(w, h)); int v1 = YuvConverter.convertToV(bitmap.getPixel(w, h + 1)); mYuv[pos++] = (byte) ((v0 + v1) / 2); } } } public int getY(int x, int y) { return 255 & mYuv[mWidth * y + x]; } public int getU(int x, int y) { return 255 & mYuv[mWidth * mHeight + mWidth * (y >> 1) + x]; } public int getV(int x, int y) { return 255 & mYuv[((3 * mWidth * mHeight) >> 1) + mWidth * (y >> 1) + x]; } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/ImageFormats/YUY2.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes.ImageFormats; import android.graphics.Bitmap; class YUY2 extends Yuv { YUY2(Bitmap bitmap) { super(bitmap); } protected void convertBitmapToYuv(Bitmap bitmap) { mYuv = new byte[2 * mWidth * mHeight]; for (int pos = 0, h = 0; h < mHeight; ++h) { for (int w = 0; w < mWidth; w += 2) { mYuv[pos++] = (byte) YuvConverter.convertToY(bitmap.getPixel(w, h)); int u0 = YuvConverter.convertToU(bitmap.getPixel(w, h)); int u1 = YuvConverter.convertToU(bitmap.getPixel(w + 1, h)); mYuv[pos++] = (byte) ((u0 + u1) / 2); mYuv[pos++] = (byte) YuvConverter.convertToY(bitmap.getPixel(w + 1, h)); int v0 = YuvConverter.convertToV(bitmap.getPixel(w, h)); int v1 = YuvConverter.convertToV(bitmap.getPixel(w + 1, h)); mYuv[pos++] = (byte) ((v0 + v1) / 2); } } } public int getY(int x, int y) { return 255 & mYuv[2 * mWidth * y + 2 * x]; } public int getU(int x, int y) { return 255 & mYuv[2 * mWidth * y + (((x & ~1) << 1) | 1)]; } public int getV(int x, int y) { return 255 & mYuv[2 * mWidth * y + ((x << 1) | 3)]; } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/ImageFormats/YV12.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes.ImageFormats; import android.graphics.Bitmap; class YV12 extends Yuv { YV12(Bitmap bitmap) { super(bitmap); } protected void convertBitmapToYuv(Bitmap bitmap) { mYuv = new byte[(3 * mWidth * mHeight) / 2]; int pos = 0; for (int h = 0; h < mHeight; ++h) for (int w = 0; w < mWidth; ++w) mYuv[pos++] = (byte) YuvConverter.convertToY(bitmap.getPixel(w, h)); for (int h = 0; h < mHeight; h += 2) { for (int w = 0; w < mWidth; w += 2) { int u0 = YuvConverter.convertToU(bitmap.getPixel(w, h)); int u1 = YuvConverter.convertToU(bitmap.getPixel(w + 1, h)); int u2 = YuvConverter.convertToU(bitmap.getPixel(w, h + 1)); int u3 = YuvConverter.convertToU(bitmap.getPixel(w + 1, h + 1)); mYuv[pos++] = (byte) ((u0 + u1 + u2 + u3) / 4); } } for (int h = 0; h < mHeight; h += 2) { for (int w = 0; w < mWidth; w += 2) { int v0 = YuvConverter.convertToV(bitmap.getPixel(w, h)); int v1 = YuvConverter.convertToV(bitmap.getPixel(w + 1, h)); int v2 = YuvConverter.convertToV(bitmap.getPixel(w, h + 1)); int v3 = YuvConverter.convertToV(bitmap.getPixel(w + 1, h + 1)); mYuv[pos++] = (byte) ((v0 + v1 + v2 + v3) / 4); } } } public int getY(int x, int y) { return 255 & mYuv[mWidth * y + x]; } public int getU(int x, int y) { return 255 & mYuv[mWidth * mHeight + (mWidth >> 1) * (y >> 1) + (x >> 1)]; } public int getV(int x, int y) { return 255 & mYuv[((5 * mWidth * mHeight) >> 2) + (mWidth >> 1) * (y >> 1) + (x >> 1)]; } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/ImageFormats/Yuv.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes.ImageFormats; import android.graphics.Bitmap; public abstract class Yuv { protected byte[] mYuv; final int mWidth; final int mHeight; Yuv(Bitmap bitmap) { mWidth = bitmap.getWidth(); mHeight = bitmap.getHeight(); convertBitmapToYuv(bitmap); } protected abstract void convertBitmapToYuv(Bitmap bitmap); public int getWidth() { return mWidth; } public int getHeight() { return mHeight; } public abstract int getY(int x, int y); public abstract int getU(int x, int y); public abstract int getV(int x, int y); } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/ImageFormats/YuvConverter.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes.ImageFormats; import android.graphics.Color; final class YuvConverter { static int convertToY(int color) { double R = Color.red(color); double G = Color.green(color); double B = Color.blue(color); return clamp(16.0 + (.003906 * ((65.738 * R) + (129.057 * G) + (25.064 * B)))); } static int convertToU(int color) { double R = Color.red(color); double G = Color.green(color); double B = Color.blue(color); return clamp(128.0 + (.003906 * ((-37.945 * R) + (-74.494 * G) + (112.439 * B)))); } static int convertToV(int color) { double R = Color.red(color); double G = Color.green(color); double B = Color.blue(color); return clamp(128.0 + (.003906 * ((112.439 * R) + (-94.154 * G) + (-18.285 * B)))); } private static int clamp(double value) { return value < 0.0 ? 0 : (value > 255.0 ? 255 : (int) value); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/ImageFormats/YuvFactory.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes.ImageFormats; import android.graphics.Bitmap; public final class YuvFactory { public static Yuv createYuv(Bitmap bitmap, int format) { switch (format) { case YuvImageFormat.YV12: return new YV12(bitmap); case YuvImageFormat.NV21: return new NV21(bitmap); case YuvImageFormat.YUY2: return new YUY2(bitmap); case YuvImageFormat.YUV440P: return new YUV440P(bitmap); default: throw new IllegalArgumentException("Only support YV12, NV21, YUY2 and YUV440P"); } } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/ImageFormats/YuvImageFormat.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes.ImageFormats; import android.graphics.ImageFormat; public class YuvImageFormat extends ImageFormat { public static final int YUV440P = 0x50303434; } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/Martin.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import android.graphics.Color; import om.sstvencoder.Output.IOutput; abstract class Martin extends Mode { private final int mSyncPulseSamples; private final double mSyncPulseFrequency; private final int mSyncPorchSamples; private final double mSyncPorchFrequency; private final int mSeparatorSamples; private final double mSeparatorFrequency; protected double mColorScanDurationMs; protected int mColorScanSamples; Martin(Bitmap bitmap, IOutput output) { super(bitmap, output); mSyncPulseSamples = convertMsToSamples(4.862); mSyncPulseFrequency = 1200.0; mSyncPorchSamples = convertMsToSamples(0.572); mSyncPorchFrequency = 1500.0; mSeparatorSamples = convertMsToSamples(0.572); mSeparatorFrequency = 1500.0; } protected int getTransmissionSamples() { int lineSamples = mSyncPulseSamples + mSyncPorchSamples + 3 * (mSeparatorSamples + mColorScanSamples); return mBitmap.getHeight() * lineSamples; } protected void writeEncodedLine() { addSyncPulse(); addSyncPorch(); addGreenScan(mLine); addSeparator(); addBlueScan(mLine); addSeparator(); addRedScan(mLine); addSeparator(); } private void addSyncPulse() { for (int i = 0; i < mSyncPulseSamples; ++i) setTone(mSyncPulseFrequency); } private void addSyncPorch() { for (int i = 0; i < mSyncPorchSamples; ++i) setTone(mSyncPorchFrequency); } private void addSeparator() { for (int i = 0; i < mSeparatorSamples; ++i) setTone(mSeparatorFrequency); } private void addGreenScan(int y) { for (int i = 0; i < mColorScanSamples; ++i) setColorTone(Color.green(getColor(i, y))); } private void addBlueScan(int y) { for (int i = 0; i < mColorScanSamples; ++i) setColorTone(Color.blue(getColor(i, y))); } private void addRedScan(int y) { for (int i = 0; i < mColorScanSamples; ++i) setColorTone(Color.red(getColor(i, y))); } private int getColor(int colorScanSample, int y) { int x = colorScanSample * mBitmap.getWidth() / mColorScanSamples; return mBitmap.getPixel(x, y); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/Martin1.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 320, height = 256) @ModeDescription(name = Martin1.Name) class Martin1 extends Martin { public static final String Name = "Martin 1"; Martin1(Bitmap bitmap, IOutput output) { super(bitmap, output); mVISCode = 44; mColorScanDurationMs = 146.432; mColorScanSamples = convertMsToSamples(mColorScanDurationMs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/Martin2.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 320, height = 256) @ModeDescription(name = Martin2.Name) class Martin2 extends Martin { public static final String Name = "Martin 2"; Martin2(Bitmap bitmap, IOutput output) { super(bitmap, output); mVISCode = 40; mColorScanDurationMs = 73.216; mColorScanSamples = convertMsToSamples(mColorScanDurationMs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/Mode.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.IMode; import om.sstvencoder.Output.IOutput; abstract class Mode implements IMode { protected Bitmap mBitmap; protected int mVISCode; protected int mLine; private IOutput mOutput; private double mSampleRate; private double mRunningIntegral; protected Mode(Bitmap bitmap, IOutput output) { mOutput = output; mSampleRate = mOutput.getSampleRate(); mBitmap = bitmap; } @Override public void init() { mRunningIntegral = 0.0; mLine = 0; mOutput.init(getTotalSamples()); writeCalibrationHeader(); } @Override public int getProcessCount() { return mBitmap.getHeight(); } @Override public boolean process() { if (mLine >= mBitmap.getHeight()) return false; writeEncodedLine(); ++mLine; return true; } // Note that also Bitmap will be recycled here @Override public void finish(boolean cancel) { mOutput.finish(cancel); destroyBitmap(); } private int getTotalSamples() { return getHeaderSamples() + getTransmissionSamples(); } private int getHeaderSamples() { return 2 * convertMsToSamples(300.0) + convertMsToSamples(10.0) + 10 * convertMsToSamples(30.0); } protected abstract int getTransmissionSamples(); private void writeCalibrationHeader() { int leaderToneSamples = convertMsToSamples(300.0); double leaderToneFrequency = 1900.0; int breakSamples = convertMsToSamples(10.0); double breakFrequency = 1200.0; int visBitSamples = convertMsToSamples(30.0); double visBitSSFrequency = 1200.0; double[] visBitFrequency = new double[]{1300.0, 1100.0}; for (int i = 0; i < leaderToneSamples; ++i) setTone(leaderToneFrequency); for (int i = 0; i < breakSamples; ++i) setTone(breakFrequency); for (int i = 0; i < leaderToneSamples; ++i) setTone(leaderToneFrequency); for (int i = 0; i < visBitSamples; ++i) setTone(visBitSSFrequency); int parity = 0; for (int pos = 0; pos < 7; ++pos) { int bit = (mVISCode >> pos) & 1; parity ^= bit; for (int i = 0; i < visBitSamples; ++i) setTone(visBitFrequency[bit]); } for (int i = 0; i < visBitSamples; ++i) setTone(visBitFrequency[parity]); for (int i = 0; i < visBitSamples; ++i) setTone(visBitSSFrequency); } protected abstract void writeEncodedLine(); protected int convertMsToSamples(double durationMs) { return (int) Math.round(durationMs * mSampleRate / 1000.0); } protected void setTone(double frequency) { mRunningIntegral += 2.0 * frequency * Math.PI / mSampleRate; mRunningIntegral %= 2.0 * Math.PI; mOutput.write(Math.sin(mRunningIntegral)); } protected void setColorTone(int color) { double blackFrequency = 1500.0; double whiteFrequency = 2300.0; setTone(color * (whiteFrequency - blackFrequency) / 255.0 + blackFrequency); } private void destroyBitmap() { if (mBitmap != null && !mBitmap.isRecycled()) { mBitmap.recycle(); mBitmap = null; } } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/ModeDescription.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import java.lang.annotation.ElementType; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.lang.annotation.Target; @Target({ElementType.TYPE}) @Retention(RetentionPolicy.RUNTIME) @interface ModeDescription { String name(); } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/ModeFactory.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import java.lang.reflect.Constructor; import om.sstvencoder.ModeInterfaces.IMode; import om.sstvencoder.ModeInterfaces.IModeInfo; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; public final class ModeFactory { public static Class getDefaultMode() { return Robot36.class; } public static String getDefaultModeClassName() { return (new ModeInfo(getDefaultMode())).getModeClassName(); } public static IModeInfo[] getModeInfoList() { return new IModeInfo[]{ new ModeInfo(Martin1.class), new ModeInfo(Martin2.class), new ModeInfo(PD50.class), new ModeInfo(PD90.class), new ModeInfo(PD120.class), new ModeInfo(PD160.class), new ModeInfo(PD180.class), new ModeInfo(PD240.class), new ModeInfo(PD290.class), new ModeInfo(Scottie1.class), new ModeInfo(Scottie2.class), new ModeInfo(ScottieDX.class), new ModeInfo(Robot36.class), new ModeInfo(Robot72.class), new ModeInfo(Wraase.class) }; } public static IModeInfo getModeInfo(Class modeClass) { if (!isModeClassValid(modeClass)) return null; return new ModeInfo(modeClass); } public static IMode CreateMode(Class modeClass, Bitmap bitmap, IOutput output) { Mode mode = null; if (bitmap != null && output != null && isModeClassValid(modeClass)) { ModeSize size = modeClass.getAnnotation(ModeSize.class); if (bitmap.getWidth() == size.width() && bitmap.getHeight() == size.height()) { try { Constructor constructor = modeClass.getDeclaredConstructor(Bitmap.class, IOutput.class); mode = (Mode) constructor.newInstance(bitmap, output); } catch (Exception ignore) { } } } return mode; } private static boolean isModeClassValid(Class modeClass) { return Mode.class.isAssignableFrom(modeClass) && modeClass.isAnnotationPresent(ModeSize.class) && modeClass.isAnnotationPresent(ModeDescription.class); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/ModeInfo.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import om.sstvencoder.ModeInterfaces.IModeInfo; import om.sstvencoder.ModeInterfaces.ModeSize; class ModeInfo implements IModeInfo { private final Class mModeClass; ModeInfo(Class modeClass) { mModeClass = modeClass; } public String getModeName() { return mModeClass.getAnnotation(ModeDescription.class).name(); } public String getModeClassName() { return mModeClass.getName(); } public ModeSize getModeSize() { return mModeClass.getAnnotation(ModeSize.class); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/PD.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.Modes.ImageFormats.Yuv; import om.sstvencoder.Modes.ImageFormats.YuvFactory; import om.sstvencoder.Modes.ImageFormats.YuvImageFormat; import om.sstvencoder.Output.IOutput; abstract class PD extends Mode { private final Yuv mYuv; private final int mSyncPulseSamples; private final double mSyncPulseFrequency; private final int mPorchSamples; private final double mPorchFrequency; protected double mColorScanDurationMs; protected int mColorScanSamples; PD(Bitmap bitmap, IOutput output) { super(bitmap, output); mYuv = YuvFactory.createYuv(mBitmap, YuvImageFormat.YUV440P); mSyncPulseSamples = convertMsToSamples(20.0); mSyncPulseFrequency = 1200.0; mPorchSamples = convertMsToSamples(2.08); mPorchFrequency = 1500.0; } protected int getTransmissionSamples() { int lineSamples = mSyncPulseSamples + mPorchSamples + 4 * mColorScanSamples; return mBitmap.getHeight() / 2 * lineSamples; } @Override public int getProcessCount() { return mBitmap.getHeight() / 2; } protected void writeEncodedLine() { addSyncPulse(); addPorch(); addYScan(mLine); addVScan(mLine); addUScan(mLine); addYScan(++mLine); } private void addSyncPulse() { for (int i = 0; i < mSyncPulseSamples; ++i) setTone(mSyncPulseFrequency); } private void addPorch() { for (int i = 0; i < mPorchSamples; ++i) setTone(mPorchFrequency); } private void addYScan(int y) { for (int i = 0; i < mColorScanSamples; ++i) setColorTone(mYuv.getY((i * mYuv.getWidth()) / mColorScanSamples, y)); } private void addUScan(int y) { for (int i = 0; i < mColorScanSamples; ++i) setColorTone(mYuv.getU((i * mYuv.getWidth()) / mColorScanSamples, y)); } private void addVScan(int y) { for (int i = 0; i < mColorScanSamples; ++i) setColorTone(mYuv.getV((i * mYuv.getWidth()) / mColorScanSamples, y)); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/PD120.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 640, height = 496) @ModeDescription(name = PD120.Name) class PD120 extends PD { public static final String Name = "PD 120"; PD120(Bitmap bitmap, IOutput output) { super(bitmap, output); mVISCode = 95; mColorScanDurationMs = 121.6; mColorScanSamples = convertMsToSamples(mColorScanDurationMs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/PD160.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 512, height = 400) @ModeDescription(name = PD160.Name) class PD160 extends PD { public static final String Name = "PD 160"; PD160(Bitmap bitmap, IOutput output) { super(bitmap, output); mVISCode = 98; mColorScanDurationMs = 195.584; mColorScanSamples = convertMsToSamples(mColorScanDurationMs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/PD180.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 640, height = 496) @ModeDescription(name = PD180.Name) class PD180 extends PD { public static final String Name = "PD 180"; PD180(Bitmap bitmap, IOutput output) { super(bitmap, output); mVISCode = 96; mColorScanDurationMs = 183.04; mColorScanSamples = convertMsToSamples(mColorScanDurationMs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/PD240.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 640, height = 496) @ModeDescription(name = PD240.Name) class PD240 extends PD { public static final String Name = "PD 240"; PD240(Bitmap bitmap, IOutput output) { super(bitmap, output); mVISCode = 97; mColorScanDurationMs = 244.48; mColorScanSamples = convertMsToSamples(mColorScanDurationMs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/PD290.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 800, height = 616) @ModeDescription(name = PD290.Name) class PD290 extends PD { public static final String Name = "PD 290"; PD290(Bitmap bitmap, IOutput output) { super(bitmap, output); mVISCode = 94; mColorScanDurationMs = 228.8; mColorScanSamples = convertMsToSamples(mColorScanDurationMs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/PD50.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 320, height = 256) @ModeDescription(name = PD50.Name) class PD50 extends PD { public static final String Name = "PD 50"; PD50(Bitmap bitmap, IOutput output) { super(bitmap, output); mVISCode = 93; mColorScanDurationMs = 91.52; mColorScanSamples = convertMsToSamples(mColorScanDurationMs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/PD90.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 320, height = 256) @ModeDescription(name = PD90.Name) class PD90 extends PD { public static final String Name = "PD 90"; PD90(Bitmap bitmap, IOutput output) { super(bitmap, output); mVISCode = 99; mColorScanDurationMs = 170.24; mColorScanSamples = convertMsToSamples(mColorScanDurationMs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/Robot36.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.Modes.ImageFormats.Yuv; import om.sstvencoder.Modes.ImageFormats.YuvFactory; import om.sstvencoder.Modes.ImageFormats.YuvImageFormat; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 320, height = 240) @ModeDescription(name = Robot36.Name) class Robot36 extends Mode { public static final String Name = "Robot 36"; private final Yuv mYuv; private final int mLumaScanSamples; private final int mChrominanceScanSamples; private final int mSyncPulseSamples; private final double mSyncPulseFrequency; private final int mSyncPorchSamples; private final double mSyncPorchFrequency; private final int mPorchSamples; private final double mPorchFrequency; private final int mSeparatorSamples; private final double mEvenSeparatorFrequency; private final double mOddSeparatorFrequency; Robot36(Bitmap bitmap, IOutput output) { super(bitmap, output); mYuv = YuvFactory.createYuv(mBitmap, YuvImageFormat.NV21); mVISCode = 8; mLumaScanSamples = convertMsToSamples(88.0); mChrominanceScanSamples = convertMsToSamples(44.0); mSyncPulseSamples = convertMsToSamples(9.0); mSyncPulseFrequency = 1200.0; mSyncPorchSamples = convertMsToSamples(3.0); mSyncPorchFrequency = 1500.0; mPorchSamples = convertMsToSamples(1.5); mPorchFrequency = 1900.0; mSeparatorSamples = convertMsToSamples(4.5); mEvenSeparatorFrequency = 1500.0; mOddSeparatorFrequency = 2300.0; } protected int getTransmissionSamples() { int lineSamples = mSyncPulseSamples + mSyncPorchSamples + mLumaScanSamples + mSeparatorSamples + mPorchSamples + mChrominanceScanSamples; return mBitmap.getHeight() * lineSamples; } protected void writeEncodedLine() { addSyncPulse(); addSyncPorch(); addYScan(mLine); if (mLine % 2 == 0) { addSeparator(mEvenSeparatorFrequency); addPorch(); addVScan(mLine); } else { addSeparator(mOddSeparatorFrequency); addPorch(); addUScan(mLine); } } private void addSyncPulse() { for (int i = 0; i < mSyncPulseSamples; ++i) setTone(mSyncPulseFrequency); } private void addSyncPorch() { for (int i = 0; i < mSyncPorchSamples; ++i) setTone(mSyncPorchFrequency); } private void addSeparator(double separatorFrequency) { for (int i = 0; i < mSeparatorSamples; ++i) setTone(separatorFrequency); } private void addPorch() { for (int i = 0; i < mPorchSamples; ++i) setTone(mPorchFrequency); } private void addYScan(int y) { for (int i = 0; i < mLumaScanSamples; ++i) setColorTone(mYuv.getY((i * mYuv.getWidth()) / mLumaScanSamples, y)); } private void addUScan(int y) { for (int i = 0; i < mChrominanceScanSamples; ++i) setColorTone(mYuv.getU((i * mYuv.getWidth()) / mChrominanceScanSamples, y)); } private void addVScan(int y) { for (int i = 0; i < mChrominanceScanSamples; ++i) setColorTone(mYuv.getV((i * mYuv.getWidth()) / mChrominanceScanSamples, y)); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/Robot72.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.Modes.ImageFormats.Yuv; import om.sstvencoder.Modes.ImageFormats.YuvFactory; import om.sstvencoder.Modes.ImageFormats.YuvImageFormat; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 320, height = 240) @ModeDescription(name = Robot72.Name) class Robot72 extends Mode { public static final String Name = "Robot 72"; private final Yuv mYuv; private final int mLumaScanSamples; private final int mChrominanceScanSamples; private final int mSyncPulseSamples; private final double mSyncPulseFrequency; private final int mSyncPorchSamples; private final double mSyncPorchFrequency; private final int mPorchSamples; private final double mPorchFrequency; private final int mSeparatorSamples; private final double mFirstSeparatorFrequency; private final double mSecondSeparatorFrequency; Robot72(Bitmap bitmap, IOutput output) { super(bitmap, output); mYuv = YuvFactory.createYuv(mBitmap, YuvImageFormat.YUY2); mVISCode = 12; mLumaScanSamples = convertMsToSamples(138.0); mChrominanceScanSamples = convertMsToSamples(69.0); mSyncPulseSamples = convertMsToSamples(9.0); mSyncPulseFrequency = 1200.0; mSyncPorchSamples = convertMsToSamples(3.0); mSyncPorchFrequency = 1500.0; mPorchSamples = convertMsToSamples(1.5); mPorchFrequency = 1900.0; mSeparatorSamples = convertMsToSamples(4.5); mFirstSeparatorFrequency = 1500.0; mSecondSeparatorFrequency = 2300.0; } protected int getTransmissionSamples() { int lineSamples = mSyncPulseSamples + mSyncPorchSamples + mLumaScanSamples + 2 * (mSeparatorSamples + mPorchSamples + mChrominanceScanSamples); return mBitmap.getHeight() * lineSamples; } protected void writeEncodedLine() { addSyncPulse(); addSyncPorch(); addYScan(mLine); addSeparator(mFirstSeparatorFrequency); addPorch(); addVScan(mLine); addSeparator(mSecondSeparatorFrequency); addPorch(); addUScan(mLine); } private void addSyncPulse() { for (int i = 0; i < mSyncPulseSamples; ++i) setTone(mSyncPulseFrequency); } private void addSyncPorch() { for (int i = 0; i < mSyncPorchSamples; ++i) setTone(mSyncPorchFrequency); } private void addSeparator(double separatorFrequency) { for (int i = 0; i < mSeparatorSamples; ++i) setTone(separatorFrequency); } private void addPorch() { for (int i = 0; i < mPorchSamples; ++i) setTone(mPorchFrequency); } private void addYScan(int y) { for (int i = 0; i < mLumaScanSamples; ++i) setColorTone(mYuv.getY((i * mYuv.getWidth()) / mLumaScanSamples, y)); } private void addUScan(int y) { for (int i = 0; i < mChrominanceScanSamples; ++i) setColorTone(mYuv.getU((i * mYuv.getWidth()) / mChrominanceScanSamples, y)); } private void addVScan(int y) { for (int i = 0; i < mChrominanceScanSamples; ++i) setColorTone(mYuv.getV((i * mYuv.getWidth()) / mChrominanceScanSamples, y)); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/Scottie.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import android.graphics.Color; import om.sstvencoder.Output.IOutput; abstract class Scottie extends Mode { private final int mSyncPulseSamples; private final double mSyncPulseFrequency; private final int mSyncPorchSamples; private final double mSyncPorchFrequency; private final int mSeparatorSamples; private final double mSeparatorFrequency; protected double mColorScanDurationMs; protected int mColorScanSamples; Scottie(Bitmap bitmap, IOutput output) { super(bitmap, output); mSyncPulseSamples = convertMsToSamples(9.0); mSyncPulseFrequency = 1200.0; mSyncPorchSamples = convertMsToSamples(1.5); mSyncPorchFrequency = 1500.0; mSeparatorSamples = convertMsToSamples(1.5); mSeparatorFrequency = 1500.0; } protected int getTransmissionSamples() { int lineSamples = 2 * mSeparatorSamples + 3 * mColorScanSamples + mSyncPulseSamples + mSyncPorchSamples; return mSyncPulseSamples + mBitmap.getHeight() * lineSamples; } protected void writeEncodedLine() { if (mLine == 0) addSyncPulse(); addSeparator(); addGreenScan(mLine); addSeparator(); addBlueScan(mLine); addSyncPulse(); addSyncPorch(); addRedScan(mLine); } private void addSyncPulse() { for (int i = 0; i < mSyncPulseSamples; ++i) setTone(mSyncPulseFrequency); } private void addSyncPorch() { for (int i = 0; i < mSyncPorchSamples; ++i) setTone(mSyncPorchFrequency); } private void addSeparator() { for (int i = 0; i < mSeparatorSamples; ++i) setTone(mSeparatorFrequency); } private void addGreenScan(int y) { for (int i = 0; i < mColorScanSamples; ++i) setColorTone(Color.green(getColor(i, y))); } private void addBlueScan(int y) { for (int i = 0; i < mColorScanSamples; ++i) setColorTone(Color.blue(getColor(i, y))); } private void addRedScan(int y) { for (int i = 0; i < mColorScanSamples; ++i) setColorTone(Color.red(getColor(i, y))); } private int getColor(int colorScanSample, int y) { int x = colorScanSample * mBitmap.getWidth() / mColorScanSamples; return mBitmap.getPixel(x, y); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/Scottie1.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 320, height = 256) @ModeDescription(name = Scottie1.Name) class Scottie1 extends Scottie { public static final String Name = "Scottie 1"; Scottie1(Bitmap bitmap, IOutput output) { super(bitmap, output); mVISCode = 60; mColorScanDurationMs = 138.24; mColorScanSamples = convertMsToSamples(mColorScanDurationMs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/Scottie2.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 320, height = 256) @ModeDescription(name = Scottie2.Name) class Scottie2 extends Scottie { public static final String Name = "Scottie 2"; Scottie2(Bitmap bitmap, IOutput output){ super(bitmap, output); mVISCode = 56; mColorScanDurationMs = 88.064; mColorScanSamples = convertMsToSamples(mColorScanDurationMs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/ScottieDX.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 320, height = 256) @ModeDescription(name = ScottieDX.Name) class ScottieDX extends Scottie { public static final String Name = "Scottie DX"; ScottieDX(Bitmap bitmap, IOutput output) { super(bitmap, output); mVISCode = 76; mColorScanDurationMs = 345.6; mColorScanSamples = convertMsToSamples(mColorScanDurationMs); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Modes/Wraase.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Modes; import android.graphics.Bitmap; import android.graphics.Color; import om.sstvencoder.ModeInterfaces.ModeSize; import om.sstvencoder.Output.IOutput; @ModeSize(width = 320, height = 256) @ModeDescription(name = Wraase.Name) class Wraase extends Mode { public static final String Name = "Wraase SC2 180"; private final int mSyncPulseSamples; private final double mSyncPulseFrequency; private final int mPorchSamples; private final double mPorchFrequency; private final int mColorScanSamples; Wraase(Bitmap bitmap, IOutput output) { super(bitmap, output); mVISCode = 55; mColorScanSamples = convertMsToSamples(235.0); mSyncPulseSamples = convertMsToSamples(5.5225); mSyncPulseFrequency = 1200.0; mPorchSamples = convertMsToSamples(0.5); mPorchFrequency = 1500.0; } protected int getTransmissionSamples() { int lineSamples = mSyncPulseSamples + mPorchSamples + 3 * mColorScanSamples; return mBitmap.getHeight() * lineSamples; } protected void writeEncodedLine() { addSyncPulse(); addPorch(); addRedScan(mLine); addGreenScan(mLine); addBlueScan(mLine); } private void addSyncPulse() { for (int i = 0; i < mSyncPulseSamples; ++i) setTone(mSyncPulseFrequency); } private void addPorch() { for (int i = 0; i < mPorchSamples; ++i) setTone(mPorchFrequency); } private void addRedScan(int y) { for (int i = 0; i < mColorScanSamples; ++i) setColorTone(Color.red(getColor(i, y))); } private void addGreenScan(int y) { for (int i = 0; i < mColorScanSamples; ++i) setColorTone(Color.green(getColor(i, y))); } private void addBlueScan(int y) { for (int i = 0; i < mColorScanSamples; ++i) setColorTone(Color.blue(getColor(i, y))); } private int getColor(int colorScanSample, int y) { int x = colorScanSample * mBitmap.getWidth() / mColorScanSamples; return mBitmap.getPixel(x, y); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Output/AudioOutput.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Output; import android.media.AudioFormat; import android.media.AudioManager; import android.media.AudioTrack; class AudioOutput implements IOutput { private final double mSampleRate; private short[] mAudioBuffer; private AudioTrack mAudioTrack; private int mBufferPos; AudioOutput(double sampleRate) { mSampleRate = sampleRate; mBufferPos = 0; } @Override public void init(int samples) { mAudioBuffer = new short[(5 * (int) mSampleRate) / 2]; // 2.5 seconds of buffer mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, (int) mSampleRate, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT, mAudioBuffer.length * 2, AudioTrack.MODE_STREAM); mAudioTrack.play(); } @Override public double getSampleRate() { return mSampleRate; } @Override public void write(double value) { if (mBufferPos == mAudioBuffer.length) { mAudioTrack.write(mAudioBuffer, 0, mAudioBuffer.length); mBufferPos = 0; } mAudioBuffer[mBufferPos++] = (short) (value * Short.MAX_VALUE); } @Override public void finish(boolean cancel) { if (mAudioTrack != null) { if (!cancel) drainBuffer(); mAudioTrack.stop(); mAudioTrack.release(); mAudioTrack = null; mAudioBuffer = null; } } private void drainBuffer() { // The second run makes sure that the previous buffer indeed got played for (int i = 0; i < 2; ++i) { while (mBufferPos < mAudioBuffer.length) mAudioBuffer[mBufferPos++] = 0; mAudioTrack.write(mAudioBuffer, 0, mAudioBuffer.length); mBufferPos = 0; } } } ================================================ FILE: app/src/main/java/om/sstvencoder/Output/IOutput.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Output; public interface IOutput { double getSampleRate(); void init(int samples); void write(double value); void finish(boolean cancel); } ================================================ FILE: app/src/main/java/om/sstvencoder/Output/OutputFactory.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Output; public final class OutputFactory { public static IOutput createOutputForSending() { double sampleRate = 44100.0; return new AudioOutput(sampleRate); } public static IOutput createOutputForSavingAsWave(WaveFileOutputContext context) { double sampleRate = 44100.0; return new WaveFileOutput(context, sampleRate); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Output/WaveFileOutput.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.Output; import java.io.BufferedOutputStream; class WaveFileOutput implements IOutput { private final double mSampleRate; private WaveFileOutputContext mContext; private BufferedOutputStream mOutputStream; private int mSamples, mWrittenSamples; WaveFileOutput(WaveFileOutputContext context, double sampleRate) { mContext = context; mSampleRate = sampleRate; } public void init(int samples) { int offset = (int) ((0.01 * mSampleRate) / 2.0); mSamples = samples + 2 * offset; mWrittenSamples = 0; InitOutputStream(); writeHeader(); padWithZeros(offset); } private void writeHeader() { try { int numChannels = 1; // mono int bitsPerSample = Short.SIZE; int blockAlign = numChannels * bitsPerSample / Byte.SIZE; int subchunk2Size = mSamples * blockAlign; mOutputStream.write("RIFF".getBytes()); // ChunkID mOutputStream.write(toLittleEndian(36 + subchunk2Size)); // ChunkSize mOutputStream.write("WAVE".getBytes()); // Format mOutputStream.write("fmt ".getBytes()); // Subchunk1ID mOutputStream.write(toLittleEndian(16)); // Subchunk1Size mOutputStream.write(toLittleEndian((short) 1)); // AudioFormat mOutputStream.write(toLittleEndian((short) numChannels)); // NumChannels mOutputStream.write(toLittleEndian((int) mSampleRate)); // SampleRate mOutputStream.write(toLittleEndian((int) mSampleRate * blockAlign)); // ByteRate mOutputStream.write(toLittleEndian((short) blockAlign)); // BlockAlign mOutputStream.write(toLittleEndian((short) bitsPerSample)); // BitsPerSample mOutputStream.write("data".getBytes()); // Subchunk2ID mOutputStream.write(toLittleEndian(subchunk2Size)); // Subchunk2Size } catch (Exception ignore) { } } private void InitOutputStream() { try { mOutputStream = new BufferedOutputStream(mContext.getOutputStream()); } catch (Exception ignore) { } } @Override public double getSampleRate() { return mSampleRate; } @Override public void write(double value) { short tmp = (short) (value * Short.MAX_VALUE); ++mWrittenSamples; try { mOutputStream.write(toLittleEndian(tmp)); } catch (Exception ignore) { } } @Override public void finish(boolean cancel) { if (!cancel) padWithZeros(mSamples); try { mOutputStream.close(); mOutputStream = null; } catch (Exception ignore) { } if (cancel) mContext.deleteFile(); } private void padWithZeros(int count) { try { while (mWrittenSamples++ < count) mOutputStream.write(toLittleEndian((short) 0)); } catch (Exception ignore) { } } private byte[] toLittleEndian(int value) { byte[] buffer = new byte[4]; buffer[0] = (byte) (value & 255); buffer[1] = (byte) ((value >> 8) & 255); buffer[2] = (byte) ((value >> 16) & 255); buffer[3] = (byte) ((value >> 24) & 255); return buffer; } private byte[] toLittleEndian(short value) { byte[] buffer = new byte[2]; buffer[0] = (byte) (value & 255); buffer[1] = (byte) ((value >> 8) & 255); return buffer; } } ================================================ FILE: app/src/main/java/om/sstvencoder/Output/WaveFileOutputContext.java ================================================ /* Copyright 2020 Olga Miller 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. */ package om.sstvencoder.Output; import android.content.ContentResolver; import android.content.ContentValues; import android.net.Uri; import android.os.Build; import android.os.Environment; import android.provider.MediaStore; import java.io.File; import java.io.FileOutputStream; import java.io.OutputStream; public class WaveFileOutputContext { private ContentResolver mContentResolver; private String mFileName; private File mFile; private Uri mUri; private ContentValues mValues; public WaveFileOutputContext(ContentResolver contentResolver, String fileName) { mContentResolver = contentResolver; mFileName = fileName; mValues = getContentValues(fileName); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) mUri = mContentResolver.insert(MediaStore.Audio.Media.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY), mValues); else mFile = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC), mFileName); } private ContentValues getContentValues(String fileName) { ContentValues values = new ContentValues(); values.put(MediaStore.Audio.Media.MIME_TYPE, "audio/wav"); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) { values.put(MediaStore.Audio.Media.DISPLAY_NAME, fileName); values.put(MediaStore.Audio.Media.RELATIVE_PATH, (new File(Environment.DIRECTORY_MUSIC, "SSTV Encoder")).getPath()); values.put(MediaStore.Audio.Media.IS_PENDING, 1); } else { values.put(MediaStore.Audio.Media.ALBUM, "SSTV Encoder"); values.put(MediaStore.Audio.Media.TITLE, fileName); values.put(MediaStore.Audio.Media.IS_MUSIC, true); } return values; } public String getFileName() { return mFileName; } public OutputStream getOutputStream() { try { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) { return mContentResolver.openOutputStream(mUri); } else return new FileOutputStream(mFile); } catch (Exception ignore) { } return null; } public void update() { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) { if (mUri != null && mValues != null) { mValues.clear(); mValues.put(MediaStore.Audio.Media.IS_PENDING, 0); mContentResolver.update(mUri, mValues, null, null); } } else { if (mFile != null && mValues != null) { mValues.put(MediaStore.Audio.Media.DATA, mFile.toString()); mUri = mContentResolver.insert(MediaStore.Audio.Media.getContentUriForPath(mFile.getAbsolutePath()), mValues); } } } public void deleteFile() { try { if (mFile == null) mFile = new File(mUri.getPath()); mFile.delete(); } catch (Exception ignore) { } } } ================================================ FILE: app/src/main/java/om/sstvencoder/ProgressBarWrapper.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder; import android.os.Handler; import android.view.View; import android.widget.ProgressBar; import android.widget.TextView; class ProgressBarWrapper { private final ProgressBar mProgressBar; private final TextView mText; private final Handler mHandler; private final int mSteps; private int mLastStep; private int mPosition, mMaxPosition; ProgressBarWrapper(ProgressBar progressBar, TextView text) { mProgressBar = progressBar; mProgressBar.setVisibility(View.GONE); mText = text; mText.setVisibility(View.GONE); mHandler = new Handler(); mSteps = 10; } private void startProgressBar(final int max, final String text) { mHandler.post(new Runnable() { @Override public void run() { mProgressBar.setMax(max); mProgressBar.setProgress(0); mProgressBar.setVisibility(View.VISIBLE); if (text != null) { mText.setText(text); mText.setVisibility(View.VISIBLE); } } }); } private void stepProgressBar(final int progress) { mHandler.post(new Runnable() { @Override public void run() { mProgressBar.setProgress(progress); } }); } private void endProgressBar() { mHandler.post(new Runnable() { @Override public void run() { mProgressBar.setVisibility(View.GONE); mText.setVisibility(View.GONE); } }); } void begin(int max, String text) { mLastStep = 0; mPosition = 0; mMaxPosition = max; startProgressBar(mSteps, text); } void step() { ++mPosition; int newStep = (mSteps * mPosition + mMaxPosition / 2) / mMaxPosition; if (newStep != mLastStep) { stepProgressBar(newStep); mLastStep = newStep; } } void end() { endProgressBar(); } } ================================================ FILE: app/src/main/java/om/sstvencoder/Settings.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder; import android.content.Context; import android.net.Uri; import android.util.JsonReader; import android.util.JsonToken; import android.util.JsonWriter; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.OutputStreamWriter; import om.sstvencoder.Modes.ModeFactory; class Settings { private final static String VERSION = "version"; private final static String IMAGE_URI = "image_uri"; private final static String TEXT_OVERLAY_PATH = "text_overlay_path"; private final static String MODE_CLASS_NAME = "mode_class_name"; private final int mVersion; private final String mFileName; private Context mContext; private String mModeClassName; private String mImageUri; private String mTextOverlayPath; private Settings() { mVersion = 1; mFileName = "settings.json"; mModeClassName = ModeFactory.getDefaultModeClassName(); } Settings(Context context) { this(); mContext = context; } boolean load() { boolean loaded = false; JsonReader reader = null; try { InputStream in = new FileInputStream(getFile()); reader = new JsonReader(new InputStreamReader(in, "UTF-8")); read(reader); loaded = true; } catch (Exception ignore) { } finally { if (reader != null) { try { reader.close(); } catch (Exception ignore) { } } } return loaded; } boolean save() { boolean saved = false; JsonWriter writer = null; try { OutputStream out = new FileOutputStream(getFile()); writer = new JsonWriter(new OutputStreamWriter(out, "UTF-8")); writer.setIndent(" "); write(writer); saved = true; } catch (Exception ignore) { } finally { if (writer != null) { try { writer.close(); } catch (Exception ignore) { } } } return saved; } void setModeClassName(String modeClassName) { mModeClassName = modeClassName; } String getModeClassName() { return mModeClassName; } void setImageUri(Uri uri) { mImageUri = uri == null ? null : uri.toString(); } Uri getImageUri() { if (mImageUri == null) return null; return Uri.parse(mImageUri); } File getTextOverlayFile() { if (mTextOverlayPath == null) mTextOverlayPath = new File(mContext.getFilesDir(), "text_overlay.json").getPath(); return new File(mTextOverlayPath); } private File getFile() { return new File(mContext.getFilesDir(), mFileName); } private void write(JsonWriter writer) throws IOException { writer.beginObject(); { writeVersion(writer); writeModeClassName(writer); writeImageUri(writer); writeTextOverlayPath(writer); } writer.endObject(); } private void writeVersion(JsonWriter writer) throws IOException { writer.name(VERSION).value(mVersion); } private void writeModeClassName(JsonWriter writer) throws IOException { writer.name(MODE_CLASS_NAME).value(mModeClassName); } private void writeImageUri(JsonWriter writer) throws IOException { writer.name(IMAGE_URI).value(mImageUri); } private void writeTextOverlayPath(JsonWriter writer) throws IOException { writer.name(TEXT_OVERLAY_PATH).value(mTextOverlayPath); } private void read(JsonReader reader) throws IOException { reader.beginObject(); { if (readVersion(reader) == mVersion) { readModeClassName(reader); readImageUri(reader); readTextOverlayPath(reader); } } reader.endObject(); } private int readVersion(JsonReader reader) throws IOException { reader.nextName(); return reader.nextInt(); } private void readModeClassName(JsonReader reader) throws IOException { reader.nextName(); mModeClassName = reader.nextString(); } private void readImageUri(JsonReader reader) throws IOException { reader.nextName(); if (reader.peek() == JsonToken.NULL) { reader.nextNull(); mImageUri = null; } else mImageUri = reader.nextString(); } private void readTextOverlayPath(JsonReader reader) throws IOException { reader.nextName(); mTextOverlayPath = reader.nextString(); } } ================================================ FILE: app/src/main/java/om/sstvencoder/TextOverlay/IReader.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.TextOverlay; import java.io.IOException; public interface IReader { void beginRootObject() throws IOException; void beginObject() throws IOException; void endObject() throws IOException; void beginArray() throws IOException; void endArray() throws IOException; boolean hasNext() throws IOException; String readString() throws IOException; boolean readBoolean() throws IOException; float readFloat() throws IOException; int readInt() throws IOException; } ================================================ FILE: app/src/main/java/om/sstvencoder/TextOverlay/IWriter.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.TextOverlay; import androidx.annotation.NonNull; import java.io.IOException; public interface IWriter { void beginRootObject() throws IOException; void beginObject(@NonNull String name) throws IOException; void endObject() throws IOException; void beginArray(@NonNull String name) throws IOException; void endArray() throws IOException; void write(@NonNull String name, String value) throws IOException; void write(@NonNull String name, boolean value) throws IOException; void write(@NonNull String name, float value) throws IOException; void write(@NonNull String name, int value) throws IOException; } ================================================ FILE: app/src/main/java/om/sstvencoder/TextOverlay/Label.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.TextOverlay; import android.graphics.Color; import java.io.Serializable; import java.lang.reflect.Field; import java.lang.reflect.Modifier; public class Label implements Serializable { public static final float TEXT_SIZE_NORMAL = 2f; public static final float OUTLINE_SIZE_NORMAL = 0.05f; private String mText; private float mTextSize, mOutlineSize; private String mFamilyName; private boolean mBold, mItalic, mOutline; private int mForeColor, mBackColor, mOutlineColor; public Label() { mText = ""; mTextSize = TEXT_SIZE_NORMAL; mFamilyName = null; mBold = true; mItalic = false; mForeColor = Color.BLACK; mBackColor = Color.TRANSPARENT; mOutline = true; mOutlineSize = OUTLINE_SIZE_NORMAL; mOutlineColor = Color.WHITE; } public String getText() { return mText; } public void setText(String text) { if (text != null) mText = text; } public float getTextSize() { return mTextSize; } public void setTextSize(float size) { if (size > 0f) mTextSize = size; } public String getFamilyName() { return mFamilyName; } public void setFamilyName(String familyName) { mFamilyName = familyName; } public boolean getBold() { return mBold; } public void setBold(boolean bold) { mBold = bold; } public boolean getItalic() { return mItalic; } public void setItalic(boolean italic) { mItalic = italic; } public int getForeColor() { return mForeColor; } public void setForeColor(int color) { mForeColor = color; } public int getBackColor() { return mBackColor; } public void setBackColor(int color) { mBackColor = color; } public boolean getOutline() { return mOutline; } public void setOutline(boolean outline) { mOutline = outline; } public float getOutlineSize() { return mOutlineSize; } public void setOutlineSize(float size) { mOutlineSize = size; } public int getOutlineColor() { return mOutlineColor; } public void setOutlineColor(int color) { mOutlineColor = color; } public Label getClone() { Label clone = new Label(); try { for (Field field : getClass().getDeclaredFields()) { if (!Modifier.isFinal(field.getModifiers())) field.set(clone, field.get(this)); } } catch (Exception ignore) { } return clone; } } ================================================ FILE: app/src/main/java/om/sstvencoder/TextOverlay/LabelCollection.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.TextOverlay; import android.graphics.Canvas; import android.graphics.Rect; import androidx.annotation.NonNull; import java.io.IOException; import java.util.LinkedList; import java.util.List; public class LabelCollection { private class Size { private float mW, mH; Size(float w, float h) { mW = w; mH = h; } float width() { return mW; } float height() { return mH; } } private final int mVersion; private final List mLabels; private Size mScreenSize; private float mTextSizeFactor; private LabelContainer mActiveLabel, mEditLabel; private float mPreviousX, mPreviousY; public LabelCollection() { mVersion = 1; mLabels = new LinkedList<>(); mPreviousX = 0f; mPreviousY = 0f; } public void update(float w, float h, float textSizeFactor) { if (mScreenSize != null) { float x = (w - mScreenSize.width()) / 2f; float y = (h - mScreenSize.height()) / 2f; for (LabelContainer label : mLabels) label.offset(x, y); } mScreenSize = new Size(w, h); mTextSizeFactor = textSizeFactor; for (LabelContainer label : mLabels) label.update(mTextSizeFactor, w, h); } public void draw(Canvas canvas) { for (LabelContainer label : mLabels) label.draw(canvas); if (mActiveLabel != null) mActiveLabel.drawActive(canvas); } public void draw(Canvas canvas, Rect src, Rect dst) { for (LabelContainer label : mLabels) label.draw(canvas, src, dst); } public boolean moveLabelBegin(float x, float y) { mActiveLabel = find(x, y); if (mActiveLabel == null) return false; mLabels.remove(mActiveLabel); mPreviousX = x; mPreviousY = y; mActiveLabel.jumpInside(mTextSizeFactor, mScreenSize.width(), mScreenSize.height()); return true; } public void moveLabel(float x, float y) { mActiveLabel.offset(x - mPreviousX, y - mPreviousY); mActiveLabel.update(mTextSizeFactor, mScreenSize.width(), mScreenSize.height()); mPreviousX = x; mPreviousY = y; } public void moveLabelEnd() { mLabels.add(mActiveLabel); mActiveLabel = null; mPreviousX = 0f; mPreviousY = 0f; } public Label editLabelBegin(float x, float y) { mEditLabel = find(x, y); if (mEditLabel == null) { mEditLabel = new LabelContainer(new Label()); mEditLabel.offset(x, y); } return mEditLabel.getContent(); } public void editLabelEnd(Label label) { if (mEditLabel != null && label != null) { if ("".equals(label.getText().trim())) { if (mLabels.contains(mEditLabel)) mLabels.remove(mEditLabel); } else { if (!mLabels.contains(mEditLabel)) mLabels.add(mEditLabel); mEditLabel.setContent(label); mEditLabel.update(mTextSizeFactor, mScreenSize.width(), mScreenSize.height()); } } mEditLabel = null; } private LabelContainer find(float x, float y) { for (LabelContainer label : mLabels) { if (label.contains(x, y)) return label; } return null; } private void add(LabelContainer label) { if (mLabels.size() == 0) mLabels.add(label); else mLabels.add(0, label); } public void write(@NonNull IWriter writer) throws IOException { writer.beginRootObject(); { writer.write("version", mVersion); writer.write("width", mScreenSize.width()); writer.write("height", mScreenSize.height()); writer.write("factor", mTextSizeFactor); writer.beginArray("labels"); { for (LabelContainer label : mLabels) label.write(writer); } writer.endArray(); } writer.endObject(); } public boolean read(@NonNull IReader reader) throws IOException { reader.beginRootObject(); { if (reader.readInt() != mVersion) return false; float w = reader.readFloat(); float h = reader.readFloat(); float textSizeFactor = reader.readFloat(); reader.beginArray(); { while (reader.hasNext()) { LabelContainer label = new LabelContainer(new Label()); label.read(reader); add(label); } } reader.endArray(); update(w, h, textSizeFactor); } reader.endObject(); return true; } } ================================================ FILE: app/src/main/java/om/sstvencoder/TextOverlay/LabelContainer.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.TextOverlay; import android.graphics.Canvas; import android.graphics.Rect; import androidx.annotation.NonNull; import java.io.IOException; class LabelContainer { private Label mLabel; private LabelPainter mPainter; private Position mPosition; // left-bottom corner LabelContainer(@NonNull Label label) { mLabel = label; mPainter = new LabelPainter(label); mPosition = new Position(); } boolean contains(float x, float y) { return mPainter.getBounds().contains(x, y); } void draw(Canvas canvas) { mPainter.draw(canvas); } void drawActive(Canvas canvas) { mPainter.drawActive(canvas); } void draw(Canvas canvas, Rect src, Rect dst) { mPainter.draw(canvas, src, dst); } void jumpInside(float textSizeFactor, float screenW, float screenH) { mPainter.moveLabelInside(textSizeFactor, screenW, screenH, mPosition); } void offset(float x, float y) { mPosition.offset(x, y); } void update(float textSizeFactor, float screenW, float screenH) { mPainter.update(textSizeFactor, screenW, screenH, mPosition); } Label getContent() { return mLabel; } void setContent(@NonNull Label label) { mLabel = label; mPainter.setLabel(label); } void write(IWriter writer) throws IOException { writer.beginRootObject(); { writer.write("position_x", mPosition.getX()); writer.write("position_y", mPosition.getY()); writer.beginObject("label"); { writeLabel(writer, mLabel); } writer.endObject(); } writer.endObject(); } void read(IReader reader) throws IOException { reader.beginRootObject(); { mPosition.set(reader.readFloat(), reader.readFloat()); reader.beginObject(); { readLabel(reader, mLabel); } reader.endObject(); } reader.endObject(); } private void writeLabel(IWriter writer, Label label) throws IOException { writer.write("text", label.getText()); writer.write("text_size", label.getTextSize()); writer.write("family_name", label.getFamilyName()); writer.write("bold", label.getBold()); writer.write("italic", label.getItalic()); writer.write("fore_color", label.getForeColor()); writer.write("back_color", label.getBackColor()); writer.write("outline", label.getOutline()); writer.write("outline_size", label.getOutlineSize()); writer.write("outline_color", label.getOutlineColor()); } private void readLabel(IReader reader, Label label) throws IOException { label.setText(reader.readString()); label.setTextSize(reader.readFloat()); label.setFamilyName(reader.readString()); label.setBold(reader.readBoolean()); label.setItalic(reader.readBoolean()); label.setForeColor(reader.readInt()); label.setBackColor(reader.readInt()); label.setOutline(reader.readBoolean()); label.setOutlineSize(reader.readFloat()); label.setOutlineColor(reader.readInt()); } } ================================================ FILE: app/src/main/java/om/sstvencoder/TextOverlay/LabelPainter.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.TextOverlay; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Path; import android.graphics.Rect; import android.graphics.RectF; import android.graphics.Typeface; import androidx.annotation.NonNull; import om.sstvencoder.Utility; class LabelPainter { private interface IDrawer { void draw(Canvas canvas); void drawShadow(Canvas canvas); void draw(Canvas canvas, Rect src, Rect dst); RectF getBounds(); } private class InDrawer implements IDrawer { private float mSizeFactor; private float mX, mY; private InDrawer(float sizeFactor, float x, float y) { mSizeFactor = sizeFactor; setPosition(x, y); setPaintSettings(mSizeFactor); } @Override public void draw(Canvas canvas) { drawOutline(canvas, mX, mY); canvas.drawText(mLabel.getText(), mX, mY, mPaint); } @Override public void drawShadow(Canvas canvas) { RectF bounds = new RectF(getBounds()); float rx = 10f; float ry = 10f; mPaint.setStrokeWidth(0f); mPaint.setColor(Color.LTGRAY); mPaint.setAlpha(100); mPaint.setStyle(Paint.Style.FILL); canvas.drawRoundRect(bounds, rx, ry, mPaint); mPaint.setAlpha(255); mPaint.setStyle(Paint.Style.STROKE); mPaint.setColor(Color.BLUE); canvas.drawRoundRect(bounds, rx, ry, mPaint); mPaint.setColor(Color.GREEN); bounds.inset(-1f, -1f); canvas.drawRoundRect(bounds, rx, ry, mPaint); mPaint.setColor(Color.RED); bounds.inset(-1f, -1f); canvas.drawRoundRect(bounds, rx, ry, mPaint); setPaintSettings(mSizeFactor); } @Override public void draw(Canvas canvas, Rect src, Rect dst) { float factor = (dst.height() / (float) src.height()); float x = (mX - src.left) * factor; float y = (mY - src.top) * factor; setSizePaintSettings(factor * mSizeFactor); drawOutline(canvas, x, y); canvas.drawText(mLabel.getText(), x, y, mPaint); setSizePaintSettings(mSizeFactor); } @Override public RectF getBounds() { RectF bounds = new RectF(getTextBounds()); bounds.offset(mX, mY); if (mLabel.getOutline()) { float inset = mLabel.getOutlineSize() * mPaint.getTextSize(); bounds.inset(-inset, -inset); } return bounds; } private void setPosition(float x, float y) { mX = x; mY = y; } private float getOneLetterSize() { Rect bounds = new Rect(); mPaint.getTextBounds("M", 0, 1, bounds); return bounds.width(); } private Rect getTextBounds() { Rect bounds = new Rect(); String text = mLabel.getText(); mPaint.getTextBounds(text, 0, text.length(), bounds); return bounds; } private void drawOutline(Canvas canvas, float x, float y) { if (mLabel.getOutline()) { setOutlinePaintSettings(); canvas.drawText(mLabel.getText(), x, y, mPaint); setTextPaintSettings(); } } private void setPaintSettings(float sizeFactor) { mPaint.setAlpha(255); try { mPaint.setTypeface(createTypeface()); } catch (Exception ignore) { } setTextPaintSettings(); setSizePaintSettings(sizeFactor); } private void setOutlinePaintSettings() { mPaint.setStyle(Paint.Style.STROKE); mPaint.setColor(mLabel.getOutlineColor()); } private void setTextPaintSettings() { mPaint.setStyle(Paint.Style.FILL); mPaint.setColor(mLabel.getForeColor()); } private void setSizePaintSettings(float sizeFactor) { float textSize = mLabel.getTextSize() * sizeFactor; mPaint.setTextSize(textSize); mPaint.setStrokeWidth(mLabel.getOutlineSize() * textSize); } private Typeface createTypeface() { int style = Typeface.NORMAL; if (mLabel.getBold() && mLabel.getItalic()) style = Typeface.BOLD_ITALIC; else { if (mLabel.getBold()) style = Typeface.BOLD; else if (mLabel.getItalic()) style = Typeface.ITALIC; } String fontFilePath = Utility.getFontFilePath(mLabel.getFamilyName(), style); Typeface family = Typeface.createFromFile(fontFilePath); return Typeface.create(family, style); } } private class OutDrawer implements IDrawer { private Path mPath; private RectF mBoundsOutside; private float mMinSize, mX, mY; private OutDrawer(float min) { mMinSize = min * 0.5f; mPaint.setAlpha(255); mPaint.setStrokeWidth(0f); } private void leftOut(RectF rect, float screenH) { mX = 0f; mY = Math.min(Math.max(mMinSize, rect.top + rect.height() * 0.5f), screenH - mMinSize); mPath = getLeftAlignedTriangle(mX, mY, mMinSize); mBoundsOutside = new RectF(mX, mY - mMinSize, mX + mMinSize, mY + mMinSize); } private void topOut(RectF rect, float screenW) { mX = Math.min(Math.max(mMinSize, rect.left + rect.width() * 0.5f), screenW - mMinSize); mY = 0f; mPath = getTopAlignedTriangle(mX, mY, mMinSize); mBoundsOutside = new RectF(mX - mMinSize, mY, mX + mMinSize * 0.5f, mY + mMinSize); } private void rightOut(RectF rect, float screenW, float screenH) { mX = screenW; mY = Math.min(Math.max(mMinSize, rect.top + rect.height() * 0.5f), screenH - mMinSize); mPath = getRightAlignedTriangle(mX, mY, mMinSize); mBoundsOutside = new RectF(mX - mMinSize, mY - mMinSize, mX, mY + mMinSize); } private void bottomOut(RectF rect, float screenW, float screenH) { mX = Math.min(Math.max(mMinSize, rect.left + rect.width() * 0.5f), screenW - mMinSize); mY = screenH; mPath = getBottomAlignedTriangle(mX, mY, mMinSize); mBoundsOutside = new RectF(mX - mMinSize, mY - mMinSize, mX + mMinSize, mY); } private Path getLeftAlignedTriangle(float x, float y, float r) { Path path = new Path(); path.moveTo(x, y - r); path.lineTo(x, y + r); path.lineTo(x + r * 0.6f, y); path.lineTo(x, y - r); return path; } private Path getTopAlignedTriangle(float x, float y, float r) { Path path = new Path(); path.moveTo(x - r, y); path.lineTo(x, y + r * 0.6f); path.lineTo(x + r, y); path.lineTo(x - r, y); return path; } private Path getRightAlignedTriangle(float x, float y, float r) { Path path = new Path(); path.moveTo(x, y - r); path.lineTo(x - r * 0.6f, y); path.lineTo(x, y + r); path.lineTo(x, y - r); return path; } private Path getBottomAlignedTriangle(float x, float y, float r) { Path path = new Path(); path.moveTo(x - r, y); path.lineTo(x, y - r * 0.6f); path.lineTo(x + r, y); path.lineTo(x - r, y); return path; } @Override public void draw(Canvas canvas) { mPaint.setColor(mLabel.getForeColor()); mPaint.setStyle(Paint.Style.FILL); canvas.drawPath(mPath, mPaint); mPaint.setColor(Color.WHITE); mPaint.setStyle(Paint.Style.STROKE); canvas.drawPath(mPath, mPaint); } @Override public void draw(Canvas canvas, Rect src, Rect dst) { } @Override public void drawShadow(Canvas canvas) { float r = 2f * mMinSize; mPaint.setColor(Color.LTGRAY); mPaint.setAlpha(100); mPaint.setStyle(Paint.Style.FILL); canvas.drawCircle(mX, mY, r, mPaint); mPaint.setAlpha(255); mPaint.setStyle(Paint.Style.STROKE); mPaint.setColor(Color.RED); canvas.drawCircle(mX, mY, r + 1f, mPaint); mPaint.setColor(Color.GREEN); canvas.drawCircle(mX, mY, r, mPaint); mPaint.setColor(Color.BLUE); canvas.drawCircle(mX, mY, r - 1f, mPaint); } @Override public RectF getBounds() { return mBoundsOutside; } } private final Paint mPaint; private Label mLabel; private IDrawer mDrawer; LabelPainter(@NonNull Label label) { mLabel = label; mPaint = new Paint(); mPaint.setAntiAlias(true); } void draw(Canvas canvas) { mDrawer.draw(canvas); } void drawActive(Canvas canvas) { mDrawer.drawShadow(canvas); mDrawer.draw(canvas); } void draw(Canvas canvas, Rect src, Rect dst) { mDrawer.draw(canvas, src, dst); } RectF getBounds() { return mDrawer.getBounds(); } void setLabel(@NonNull Label label) { mLabel = label; } void moveLabelInside(float sizeFactor, float screenW, float screenH, Position position) { if (isLabelInside()) return; float x = position.getX(); float y = position.getY(); InDrawer inDrawer = new InDrawer(sizeFactor, x, y); RectF rect = inDrawer.getBounds(); float min = Math.min(getMinSize(sizeFactor), inDrawer.getOneLetterSize()); if (rect.right < min) // left out x = min - rect.width(); else if (rect.bottom < min) // top out y = min; else if (rect.left > (screenW - min)) // right out x = screenW - min; else if (rect.top > (screenH - min)) // bottom out y = screenH + rect.height() - min; inDrawer.setPosition(x, y); mDrawer = inDrawer; position.set(x, y); } void update(float sizeFactor, float screenW, float screenH, Position position) { InDrawer inDrawer = new InDrawer(sizeFactor, position.getX(), position.getY()); RectF rect = inDrawer.getBounds(); float minSize = getMinSize(sizeFactor); float min = Math.min(minSize, inDrawer.getOneLetterSize()); OutDrawer outDrawer = null; if (rect.right < min) { // left out outDrawer = new OutDrawer(minSize); outDrawer.leftOut(rect, screenH); } else if (rect.bottom < min) {// top out outDrawer = new OutDrawer(minSize); outDrawer.topOut(rect, screenW); } else if (rect.left > (screenW - min)) { // right out outDrawer = new OutDrawer(minSize); outDrawer.rightOut(rect, screenW, screenH); } else if (rect.top > (screenH - min)) { // bottom out outDrawer = new OutDrawer(minSize); outDrawer.bottomOut(rect, screenW, screenH); } mDrawer = outDrawer == null ? inDrawer : outDrawer; } private boolean isLabelInside() { return mDrawer instanceof InDrawer; } private float getMinSize(float sizeFactor) { return 1.5f * sizeFactor; } } ================================================ FILE: app/src/main/java/om/sstvencoder/TextOverlay/Position.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder.TextOverlay; class Position { private float mX; private float mY; Position() { mX = 0f; mY = 0f; } void set(float x, float y) { mX = x; mY = y; } void offset(float x, float y) { mX += x; mY += y; } float getX() { return mX; } float getY() { return mY; } } ================================================ FILE: app/src/main/java/om/sstvencoder/TextOverlayTemplate.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder; import androidx.annotation.NonNull; import android.util.JsonReader; import android.util.JsonToken; import android.util.JsonWriter; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.OutputStreamWriter; import om.sstvencoder.TextOverlay.IReader; import om.sstvencoder.TextOverlay.IWriter; import om.sstvencoder.TextOverlay.LabelCollection; class TextOverlayTemplate { private class LabelCollectionWriter implements IWriter { private JsonWriter mWriter; private LabelCollectionWriter(@NonNull JsonWriter writer) { mWriter = writer; } @Override public void beginRootObject() throws IOException { mWriter.beginObject(); } @Override public void beginObject(@NonNull String name) throws IOException { mWriter.name(name); mWriter.beginObject(); } @Override public void endObject() throws IOException { mWriter.endObject(); } @Override public void beginArray(@NonNull String name) throws IOException { mWriter.name(name); mWriter.beginArray(); } @Override public void endArray() throws IOException { mWriter.endArray(); } @Override public void write(@NonNull String name, String value) throws IOException { mWriter.name(name).value(value); } @Override public void write(@NonNull String name, boolean value) throws IOException { mWriter.name(name).value(value); } @Override public void write(@NonNull String name, float value) throws IOException { mWriter.name(name).value(value); } @Override public void write(@NonNull String name, int value) throws IOException { mWriter.name(name).value(value); } } private class LabelCollectionReader implements IReader { private JsonReader mReader; private LabelCollectionReader(@NonNull JsonReader reader) { mReader = reader; } @Override public void beginRootObject() throws IOException { mReader.beginObject(); } @Override public void beginObject() throws IOException { mReader.nextName(); mReader.beginObject(); } @Override public void endObject() throws IOException { mReader.endObject(); } @Override public void beginArray() throws IOException { mReader.nextName(); mReader.beginArray(); } @Override public void endArray() throws IOException { mReader.endArray(); } @Override public boolean hasNext() throws IOException { return mReader.hasNext(); } @Override public String readString() throws IOException { mReader.nextName(); if (mReader.peek() == JsonToken.NULL) { mReader.nextNull(); return null; } return mReader.nextString(); } @Override public boolean readBoolean() throws IOException { mReader.nextName(); return mReader.nextBoolean(); } @Override public float readFloat() throws IOException { mReader.nextName(); return Float.valueOf(mReader.nextString()); } @Override public int readInt() throws IOException { mReader.nextName(); return mReader.nextInt(); } } boolean load(@NonNull LabelCollection labels, File file) { boolean loaded = false; JsonReader jsonReader = null; try { InputStream in = new FileInputStream(file); jsonReader = new JsonReader(new InputStreamReader(in, "UTF-8")); loaded = labels.read(new LabelCollectionReader(jsonReader)); } catch (Exception ignore) { } finally { if (jsonReader != null) { try { jsonReader.close(); } catch (Exception ignore) { } } } return loaded; } boolean save(@NonNull LabelCollection labels, File file) { boolean saved = false; JsonWriter jsonWriter = null; try { OutputStream out = new FileOutputStream(file); jsonWriter = new JsonWriter(new OutputStreamWriter(out, "UTF-8")); jsonWriter.setIndent(" "); labels.write(new LabelCollectionWriter(jsonWriter)); saved = true; } catch (Exception ignore) { } finally { if (jsonWriter != null) { try { jsonWriter.close(); } catch (Exception ignore) { } } } return saved; } } ================================================ FILE: app/src/main/java/om/sstvencoder/Utility.java ================================================ /* Copyright 2017 Olga Miller 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. */ package om.sstvencoder; import android.content.Context; import android.content.Intent; import android.graphics.Rect; import androidx.exifinterface.media.ExifInterface; import android.graphics.Typeface; import android.net.Uri; import android.os.Build; import android.os.Environment; import androidx.annotation.NonNull; import androidx.core.content.FileProvider; import java.io.File; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Locale; public final class Utility { private static final String DIRECTORY_SYSTEM_FONTS = "/system/fonts"; private static final String DEFAULT_FONT_FAMILY = "Default"; @NonNull static Rect getEmbeddedRect(int w, int h, int iw, int ih) { Rect rect; int ow = (9 * w) / 10; int oh = (9 * h) / 10; if (iw * oh < ow * ih) { int right = (iw * oh) / ih; rect = new Rect(0, 0, right, oh); rect.offset((w - right) / 2, (h - oh) / 2); } else { int bottom = (ih * ow) / iw; rect = new Rect(0, 0, ow, bottom); rect.offset((w - ow) / 2, (h - bottom) / 2); } return rect; } static float getTextSizeFactor(int w, int h) { return 0.1f * (Utility.getEmbeddedRect(w, h, 320, 240).height()); } static String createMessage(Exception ex) { StringBuilder sb = new StringBuilder(); sb.append(ex.getMessage()); sb.append("\n"); for (StackTraceElement el : ex.getStackTrace()) { sb.append("\n"); sb.append(el.toString()); } return sb.toString(); } @NonNull static Intent createEmailIntent(final String subject, final String text) { Intent intent = new Intent(Intent.ACTION_SEND); intent.setType("text/email"); intent.putExtra(Intent.EXTRA_EMAIL, new String[]{"olga.rgb@gmail.com"}); intent.putExtra(Intent.EXTRA_SUBJECT, subject); intent.putExtra(Intent.EXTRA_TEXT, text); return intent; } static int convertToDegrees(int exifOrientation) { switch (exifOrientation) { case ExifInterface.ORIENTATION_ROTATE_90: return 90; case ExifInterface.ORIENTATION_ROTATE_180: return 180; case ExifInterface.ORIENTATION_ROTATE_270: return 270; } return 0; } static Uri createImageUri(Context context) { if (!isExternalStorageWritable()) return null; File dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES); File file = new File(dir, createFileName() + ".jpg"); if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) // API level 24 and higher: FileUriExposedException return Uri.fromFile(file); // file:// URI // API level 15: Camera crash return FileProvider.getUriForFile(context, "om.sstvencoder", file); // content:// URI } static String createWaveFileName() { return createFileName() + ".wav"; } private static String createFileName() { return new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US).format(new Date()); } static boolean isExternalStorageWritable() { String state = Environment.getExternalStorageState(); return Environment.MEDIA_MOUNTED.equals(state); } static List getSystemFontFamilyList() { List fontFamilyNameList = new ArrayList<>(); File fontsDir = new File(DIRECTORY_SYSTEM_FONTS); if (fontsDir.exists() && fontsDir.isDirectory()) { File[] files = fontsDir.listFiles(); if (files != null) { for (File file : files) { String fileName = file.getName(); if (file.isFile() && isSupportedFontFileFormat(fileName)) { String fontFamilyName = getFontFamilyName(fileName); if (!fontFamilyNameList.contains(fontFamilyName)) fontFamilyNameList.add(fontFamilyName); } } } } fontFamilyNameList.add(0, Utility.DEFAULT_FONT_FAMILY); return fontFamilyNameList; } private static boolean isSupportedFontFileFormat(String fileName) { return fileName.endsWith(".ttf") || fileName.endsWith(".otf"); } private static String getFontFamilyName(String fileName) { String fontFamilyName = fileName; int lastIndex = fileName.length() - 1; int charIndex = fileName.indexOf('-'); if (0 < charIndex && charIndex < lastIndex) { fontFamilyName = fileName.substring(0, charIndex); } else { charIndex = fileName.lastIndexOf('.'); if (0 < charIndex && charIndex < lastIndex) { fontFamilyName = fileName.substring(0, charIndex); } } return fontFamilyName; } public static String getFontFilePath(String fontFamilyName, int style) { List fontFamilyFilePathList = getFontFamilyFilePathList(fontFamilyName); String fontFilePath = fontFamilyFilePathList.get(0); String styleString = getFontFileStyleString(style); if (!styleString.isEmpty()) { for (String path : fontFamilyFilePathList) { if (path.contains(styleString)) { fontFilePath = path; break; } } } return fontFilePath; } private static List getFontFamilyFilePathList(String fontFamilyName) { List fontFamilyFilePathList = new ArrayList<>(); File fontsDir = new File(DIRECTORY_SYSTEM_FONTS); if (fontsDir.exists() && fontsDir.isDirectory()) { File[] files = fontsDir.listFiles(); if (files != null) { for (File file : files) { if (file.isFile()) { String path = file.getAbsolutePath(); if (path.contains(fontFamilyName)) { fontFamilyFilePathList.add(path); } } } } } return fontFamilyFilePathList; } private static String getFontFileStyleString(int style) { if (style == Typeface.NORMAL) return "-Regular"; if (style == Typeface.BOLD_ITALIC) return "-BoldItalic"; if (style == Typeface.BOLD) return "-Bold"; if (style == Typeface.ITALIC) return "-Italic"; return ""; } } ================================================ FILE: app/src/main/res/layout/activity_edit_text.xml ================================================ ================================================ FILE: app/src/main/res/layout/activity_main.xml ================================================ ================================================ FILE: app/src/main/res/layout/fragment_color.xml ================================================ ================================================ FILE: app/src/main/res/menu/menu_edit_text.xml ================================================ ================================================ FILE: app/src/main/res/menu/menu_main.xml ================================================ ================================================ FILE: app/src/main/res/values/strings.xml ================================================ SSTV Encoder Pick Picture Take Picture Save as WAVE File Stop Play Transform Image Rotate Reset Done Modes Privacy Policy About SSTV Encoder SSTV Encoder %1$s\nCopyright 2017 Olga Miller \n\nSSTV Encoder sends images via Slow Scan Television (SSTV). \n\nFor more info, see open source code: \nhttps://github.com/olgamiller/SSTVEncoder2 \n\nDISCLAIMER:\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. Image loading error Image orientation error Unsupported content. Previous image could not be loaded. Device has no camera. Sending… %1$s saving… Another activity could not be resolved. Another activity could not be started. Send Email OK SSTV Encoder - Bug Report Send Bug Report: Bold Italic Outline Color Color Size Font Default Text Small Normal Large Huge Size Thin Normal Thick ================================================ FILE: app/src/main/res/values/styles.xml ================================================ ================================================ FILE: app/src/main/res/values-zh-rCN/strings.xml ================================================ 选择照片 拍摄照片 保存为波形(.wav)文件 停止 播放 更改图片 旋转 重置 完成 编码模式 隐私政策 关于SSTV Encoder "\n SSTV Encoder %1$s\n版权所有 2017 Olga Miller\n \n\nSSTV Encoder通过慢扫描电视/Slow Scan Television (SSTV)发送图片.\n \n\n要获取详细信息，请参阅本软件源码: \nhttps://github.com/olgamiller/SSTVEncoder2\n \n\nDISCLAIMER:\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.\n " 加载图像时出错 定位图像时出错 不受支持的内容 先前所使用的图像未能被加载 这个设备没有摄像头 发送… %1$s 另存为文件… 未能解析另一个活动 另一个活动未能被启动 发送邮件 好的 SSTV Encoder - BUG反馈 发送BUG反馈 粗体 斜体 描边 颜色 描边颜色 大小 字体 默认字体 文本 小 常规 大 很大 描边大小 细 常规 粗 ================================================ FILE: app/src/main/res/xml/paths.xml ================================================ ================================================ FILE: build.gradle ================================================ buildscript { repositories { google() mavenCentral() } dependencies { classpath 'com.android.tools.build:gradle:8.7.3' } } allprojects { configurations.configureEach { resolutionStrategy.eachDependency { details -> if (details.requested.group == 'org.jetbrains.kotlin') { details.useVersion "1.8.22" } } } repositories { google() mavenCentral() } } tasks.register('clean', Delete) { delete rootProject.layout.buildDirectory.get().asFile } ================================================ FILE: fastlane/metadata/android/en-US/full_description.txt ================================================

Modes

Supported SSTV modes:
  • Martin Modes: Martin 1, Martin 2
  • PD Modes: PD 50, PD 90, PD 120, PD 160, PD 180, PD 240, PD 290
  • Robot Modes: Robot 36 Color, Robot 72 Color
  • Scottie Modes: Scottie 1, Scottie 2, Scottie DX
  • Wraase Modes: Wraase SC2 180
The mode specifications are taken from the Dayton Paper, JL Barber, "Proposal for SSTV Mode Specifications", 2000:
http://www.barberdsp.com/downloads/Dayton%20Paper.pdf

Image

To load an image:
  • tap "Take Picture" or "Pick Picture" menu button, or
  • use the Share option of an app like e.g. Gallery.
To keep the aspect ratio, black borders will be added if necessary.
Original image can be resend using another mode without reloading.
After image rotation or mode changing the image will be scaled to that mode's native size.
After closing the app the loaded image will not be stored.

Text Overlay

Actions for working with text overlays:
  • Single tap to add a text overlay.
  • Single tap on text overlay to edit it.
  • Long press to move text overlay.
  • Remove the text to remove a text overlay.
After closing the app all text overlays will be stored and reloaded when restarting.

Menu

Available menu options:
  • "Play": Sends the image
  • "Stop": Stops the current sending and empties the queue
  • "Pick Picture": Opens an image viewer app to select a picture
  • "Take Picture": Starts a camera app to take a picture
  • "Save as WAVE File": Creates a wave file in the Music folder in SSTV Encoder album
  • "Transform Image":
    • "Rotate": Rotates the image by 90 degrees
    • "Reset": Resets image rotation and scaling
  • "Modes": Lists all supported modes
================================================ FILE: fastlane/metadata/android/en-US/short_description.txt ================================================ Image encoder for Slow-Scan Television (SSTV) audio signals ================================================ FILE: fastlane/metadata/android/en-US/title.txt ================================================ SSTV Encoder ================================================ FILE: gradle/wrapper/gradle-wrapper.properties ================================================ distributionBase=GRADLE_USER_HOME distributionPath=wrapper/dists distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip zipStoreBase=GRADLE_USER_HOME zipStorePath=wrapper/dists ================================================ FILE: gradle.properties ================================================ # Project-wide Gradle settings. # IDE (e.g. Android Studio) users: # Gradle settings configured through the IDE *will override* # any settings specified in this file. # For more details on how to configure your build environment visit # http://www.gradle.org/docs/current/userguide/build_environment.html # Specifies the JVM arguments used for the daemon process. # The setting is particularly useful for tweaking memory settings. org.gradle.jvmargs=-Xmx1536m # When configured, Gradle will run in incubating parallel mode. # This option should only be used with decoupled projects. More details, visit # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects # org.gradle.parallel=true android.useAndroidX=true android.enableJetifier=true ================================================ FILE: gradlew ================================================ #!/usr/bin/env sh ############################################################################## ## ## Gradle start up script for UN*X ## ############################################################################## # Attempt to set APP_HOME # Resolve links: $0 may be a link PRG="$0" # Need this for relative symlinks. while [ -h "$PRG" ] ; do ls=`ls -ld "$PRG"` link=`expr "$ls" : '.*-> \(.*\)$'` if expr "$link" : '/.*' > /dev/null; then PRG="$link" else PRG=`dirname "$PRG"`"/$link" fi done SAVED="`pwd`" cd "`dirname \"$PRG\"`/" >/dev/null APP_HOME="`pwd -P`" cd "$SAVED" >/dev/null APP_NAME="Gradle" APP_BASE_NAME=`basename "$0"` # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. DEFAULT_JVM_OPTS="" # Use the maximum available, or set MAX_FD != -1 to use that value. MAX_FD="maximum" warn () { echo "$*" } die () { echo echo "$*" echo exit 1 } # OS specific support (must be 'true' or 'false'). cygwin=false msys=false darwin=false nonstop=false case "`uname`" in CYGWIN* ) cygwin=true ;; Darwin* ) darwin=true ;; MINGW* ) msys=true ;; NONSTOP* ) nonstop=true ;; esac CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar # Determine the Java command to use to start the JVM. if [ -n "$JAVA_HOME" ] ; then if [ -x "$JAVA_HOME/jre/sh/java" ] ; then # IBM's JDK on AIX uses strange locations for the executables JAVACMD="$JAVA_HOME/jre/sh/java" else JAVACMD="$JAVA_HOME/bin/java" fi if [ ! -x "$JAVACMD" ] ; then die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME Please set the JAVA_HOME variable in your environment to match the location of your Java installation." fi else JAVACMD="java" which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. Please set the JAVA_HOME variable in your environment to match the location of your Java installation." fi # Increase the maximum file descriptors if we can. if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then MAX_FD_LIMIT=`ulimit -H -n` if [ $? -eq 0 ] ; then if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then MAX_FD="$MAX_FD_LIMIT" fi ulimit -n $MAX_FD if [ $? -ne 0 ] ; then warn "Could not set maximum file descriptor limit: $MAX_FD" fi else warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" fi fi # For Darwin, add options to specify how the application appears in the dock if $darwin; then GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" fi # For Cygwin, switch paths to Windows format before running java if $cygwin ; then APP_HOME=`cygpath --path --mixed "$APP_HOME"` CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` JAVACMD=`cygpath --unix "$JAVACMD"` # We build the pattern for arguments to be converted via cygpath ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` SEP="" for dir in $ROOTDIRSRAW ; do ROOTDIRS="$ROOTDIRS$SEP$dir" SEP="|" done OURCYGPATTERN="(^($ROOTDIRS))" # Add a user-defined pattern to the cygpath arguments if [ "$GRADLE_CYGPATTERN" != "" ] ; then OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" fi # Now convert the arguments - kludge to limit ourselves to /bin/sh i=0 for arg in "$@" ; do CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` else eval `echo args$i`="\"$arg\"" fi i=$((i+1)) done case $i in (0) set -- ;; (1) set -- "$args0" ;; (2) set -- "$args0" "$args1" ;; (3) set -- "$args0" "$args1" "$args2" ;; (4) set -- "$args0" "$args1" "$args2" "$args3" ;; (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; esac fi # Escape application args save () { for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done echo " " } APP_ARGS=$(save "$@") # Collect all arguments for the java command, following the shell quoting and substitution rules eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then cd "$(dirname "$0")" fi exec "$JAVACMD" "$@" ================================================ FILE: gradlew.bat ================================================ @if "%DEBUG%" == "" @echo off @rem ########################################################################## @rem @rem Gradle startup script for Windows @rem @rem ########################################################################## @rem Set local scope for the variables with windows NT shell if "%OS%"=="Windows_NT" setlocal set DIRNAME=%~dp0 if "%DIRNAME%" == "" set DIRNAME=. set APP_BASE_NAME=%~n0 set APP_HOME=%DIRNAME% @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. set DEFAULT_JVM_OPTS= @rem Find java.exe if defined JAVA_HOME goto findJavaFromJavaHome set JAVA_EXE=java.exe %JAVA_EXE% -version >NUL 2>&1 if "%ERRORLEVEL%" == "0" goto init echo. echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. echo. echo Please set the JAVA_HOME variable in your environment to match the echo location of your Java installation. goto fail :findJavaFromJavaHome set JAVA_HOME=%JAVA_HOME:"=% set JAVA_EXE=%JAVA_HOME%/bin/java.exe if exist "%JAVA_EXE%" goto init echo. echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% echo. echo Please set the JAVA_HOME variable in your environment to match the echo location of your Java installation. goto fail :init @rem Get command-line arguments, handling Windows variants if not "%OS%" == "Windows_NT" goto win9xME_args :win9xME_args @rem Slurp the command line arguments. set CMD_LINE_ARGS= set _SKIP=2 :win9xME_args_slurp if "x%~1" == "x" goto execute set CMD_LINE_ARGS=%* :execute @rem Setup the command line set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar @rem Execute Gradle "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% :end @rem End local scope for the variables with windows NT shell if "%ERRORLEVEL%"=="0" goto mainEnd :fail rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of rem the _cmd.exe /c_ return code! if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 exit /b 1 :mainEnd if "%OS%"=="Windows_NT" endlocal :omega ================================================ FILE: settings.gradle ================================================ include ':app'