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Repository: durfu/DFURTSPPlayer
Branch: master
Commit: 5051ec799661
Files: 122
Total size: 62.8 MB
Directory structure:
gitextract_n0bz8qbc/
├── .gitignore
├── DFURTSPPlayer/
│ ├── DFURTSPPlayer/
│ │ ├── DFUAppDelegate.h
│ │ ├── DFUAppDelegate.m
│ │ ├── DFURTSPPlayer-Info.plist
│ │ ├── DFURTSPPlayer-Prefix.pch
│ │ ├── DFUViewController.h
│ │ ├── DFUViewController.m
│ │ ├── FFMpegDecoder/
│ │ │ ├── AudioStreamer.h
│ │ │ ├── AudioStreamer.m
│ │ │ ├── RTSPPlayer.h
│ │ │ ├── RTSPPlayer.m
│ │ │ ├── Utilities.h
│ │ │ └── Utilities.m
│ │ ├── FFMpegiOS/
│ │ │ ├── include/
│ │ │ │ ├── libavcodec/
│ │ │ │ │ ├── avcodec.h
│ │ │ │ │ ├── avfft.h
│ │ │ │ │ ├── dv_profile.h
│ │ │ │ │ ├── dxva2.h
│ │ │ │ │ ├── old_codec_ids.h
│ │ │ │ │ ├── qsv.h
│ │ │ │ │ ├── vaapi.h
│ │ │ │ │ ├── vda.h
│ │ │ │ │ ├── vdpau.h
│ │ │ │ │ ├── version.h
│ │ │ │ │ ├── vorbis_parser.h
│ │ │ │ │ └── xvmc.h
│ │ │ │ ├── libavdevice/
│ │ │ │ │ ├── avdevice.h
│ │ │ │ │ └── version.h
│ │ │ │ ├── libavfilter/
│ │ │ │ │ ├── asrc_abuffer.h
│ │ │ │ │ ├── avcodec.h
│ │ │ │ │ ├── avfilter.h
│ │ │ │ │ ├── avfiltergraph.h
│ │ │ │ │ ├── buffersink.h
│ │ │ │ │ ├── buffersrc.h
│ │ │ │ │ └── version.h
│ │ │ │ ├── libavformat/
│ │ │ │ │ ├── avformat.h
│ │ │ │ │ ├── avio.h
│ │ │ │ │ └── version.h
│ │ │ │ ├── libavutil/
│ │ │ │ │ ├── adler32.h
│ │ │ │ │ ├── aes.h
│ │ │ │ │ ├── attributes.h
│ │ │ │ │ ├── audio_fifo.h
│ │ │ │ │ ├── audioconvert.h
│ │ │ │ │ ├── avassert.h
│ │ │ │ │ ├── avconfig.h
│ │ │ │ │ ├── avstring.h
│ │ │ │ │ ├── avutil.h
│ │ │ │ │ ├── base64.h
│ │ │ │ │ ├── blowfish.h
│ │ │ │ │ ├── bprint.h
│ │ │ │ │ ├── bswap.h
│ │ │ │ │ ├── buffer.h
│ │ │ │ │ ├── camellia.h
│ │ │ │ │ ├── cast5.h
│ │ │ │ │ ├── channel_layout.h
│ │ │ │ │ ├── common.h
│ │ │ │ │ ├── cpu.h
│ │ │ │ │ ├── crc.h
│ │ │ │ │ ├── dict.h
│ │ │ │ │ ├── display.h
│ │ │ │ │ ├── downmix_info.h
│ │ │ │ │ ├── error.h
│ │ │ │ │ ├── eval.h
│ │ │ │ │ ├── ffversion.h
│ │ │ │ │ ├── fifo.h
│ │ │ │ │ ├── file.h
│ │ │ │ │ ├── frame.h
│ │ │ │ │ ├── hash.h
│ │ │ │ │ ├── hmac.h
│ │ │ │ │ ├── imgutils.h
│ │ │ │ │ ├── intfloat.h
│ │ │ │ │ ├── intreadwrite.h
│ │ │ │ │ ├── lfg.h
│ │ │ │ │ ├── log.h
│ │ │ │ │ ├── lzo.h
│ │ │ │ │ ├── macros.h
│ │ │ │ │ ├── mathematics.h
│ │ │ │ │ ├── md5.h
│ │ │ │ │ ├── mem.h
│ │ │ │ │ ├── motion_vector.h
│ │ │ │ │ ├── murmur3.h
│ │ │ │ │ ├── old_pix_fmts.h
│ │ │ │ │ ├── opt.h
│ │ │ │ │ ├── parseutils.h
│ │ │ │ │ ├── pixdesc.h
│ │ │ │ │ ├── pixelutils.h
│ │ │ │ │ ├── pixfmt.h
│ │ │ │ │ ├── random_seed.h
│ │ │ │ │ ├── rational.h
│ │ │ │ │ ├── replaygain.h
│ │ │ │ │ ├── ripemd.h
│ │ │ │ │ ├── samplefmt.h
│ │ │ │ │ ├── sha.h
│ │ │ │ │ ├── sha512.h
│ │ │ │ │ ├── stereo3d.h
│ │ │ │ │ ├── threadmessage.h
│ │ │ │ │ ├── time.h
│ │ │ │ │ ├── timecode.h
│ │ │ │ │ ├── timestamp.h
│ │ │ │ │ ├── twofish.h
│ │ │ │ │ ├── version.h
│ │ │ │ │ └── xtea.h
│ │ │ │ ├── libswresample/
│ │ │ │ │ ├── swresample.h
│ │ │ │ │ └── version.h
│ │ │ │ └── libswscale/
│ │ │ │ ├── swscale.h
│ │ │ │ └── version.h
│ │ │ └── lib/
│ │ │ ├── libavcodec.a
│ │ │ ├── libavdevice.a
│ │ │ ├── libavfilter.a
│ │ │ ├── libavformat.a
│ │ │ ├── libavutil.a
│ │ │ ├── libswresample.a
│ │ │ └── libswscale.a
│ │ ├── en.lproj/
│ │ │ ├── DFUViewController_iPad.xib
│ │ │ ├── DFUViewController_iPhone.xib
│ │ │ └── InfoPlist.strings
│ │ └── main.m
│ ├── DFURTSPPlayer.xcodeproj/
│ │ └── project.pbxproj
│ └── DFURTSPPlayerTests/
│ ├── DFURTSPPlayerTests-Info.plist
│ ├── DFURTSPPlayerTests.h
│ ├── DFURTSPPlayerTests.m
│ └── en.lproj/
│ └── InfoPlist.strings
└── README.md
================================================
FILE CONTENTS
================================================
================================================
FILE: .gitignore
================================================
# Xcode
.DS_Store
build/
*.pbxuser
!default.pbxuser
*.mode1v3
!default.mode1v3
*.mode2v3
!default.mode2v3
*.perspectivev3
!default.perspectivev3
*.xcworkspace
!default.xcworkspace
xcuserdata
profile
*.moved-aside
DerivedData
.idea/
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/DFUAppDelegate.h
================================================
//
// DFUAppDelegate.h
// DFURTSPPlayer
//
// Created by Bogdan Furdui on 3/7/13.
// Copyright (c) 2013 Bogdan Furdui. All rights reserved.
//
#import <UIKit/UIKit.h>
@class DFUViewController;
@interface DFUAppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;
@property (strong, nonatomic) DFUViewController *viewController;
@end
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/DFUAppDelegate.m
================================================
//
// DFUAppDelegate.m
// DFURTSPPlayer
//
// Created by Bogdan Furdui on 3/7/13.
// Copyright (c) 2013 Bogdan Furdui. All rights reserved.
//
#import "DFUAppDelegate.h"
#import "DFUViewController.h"
@implementation DFUAppDelegate
- (void)dealloc
{
[_window release];
[_viewController release];
[super dealloc];
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
self.viewController = [[[DFUViewController alloc] initWithNibName:@"DFUViewController_iPhone" bundle:nil] autorelease];
} else {
self.viewController = [[[DFUViewController alloc] initWithNibName:@"DFUViewController_iPad" bundle:nil] autorelease];
}
self.window.rootViewController = self.viewController;
[self.window makeKeyAndVisible];
return YES;
}
- (void)applicationWillResignActive:(UIApplication *)application
{
// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}
- (void)applicationDidEnterBackground:(UIApplication *)application
{
// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}
- (void)applicationWillEnterForeground:(UIApplication *)application
{
// Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}
- (void)applicationDidBecomeActive:(UIApplication *)application
{
// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}
- (void)applicationWillTerminate:(UIApplication *)application
{
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}
@end
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/DFURTSPPlayer-Info.plist
================================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleDisplayName</key>
<string>${PRODUCT_NAME}</string>
<key>CFBundleExecutable</key>
<string>${EXECUTABLE_NAME}</string>
<key>CFBundleIdentifier</key>
<string>com.clujtech.ro.${PRODUCT_NAME:rfc1034identifier}</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>${PRODUCT_NAME}</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>1.0</string>
<key>LSRequiresIPhoneOS</key>
<true/>
<key>UIRequiredDeviceCapabilities</key>
<array>
<string>armv7</string>
</array>
<key>UISupportedInterfaceOrientations</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
<string>UIInterfaceOrientationPortraitUpsideDown</string>
</array>
<key>UISupportedInterfaceOrientations~ipad</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationPortraitUpsideDown</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
</dict>
</plist>
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/DFURTSPPlayer-Prefix.pch
================================================
//
// Prefix header for all source files of the 'DFURTSPPlayer' target in the 'DFURTSPPlayer' project
//
#import <Availability.h>
#ifndef __IPHONE_4_0
#warning "This project uses features only available in iOS SDK 4.0 and later."
#endif
#ifdef __OBJC__
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#endif
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/DFUViewController.h
================================================
//
// DFUViewController.h
// DFURTSPPlayer
//
// Created by Bogdan Furdui on 3/7/13.
// Copyright (c) 2013 Bogdan Furdui. All rights reserved.
//
#import <UIKit/UIKit.h>
@class RTSPPlayer;
@interface DFUViewController : UIViewController
{
IBOutlet UIImageView *imageView;
IBOutlet UILabel *label;
IBOutlet UIButton *playButton;
RTSPPlayer *video;
float lastFrameTime;
}
@property (nonatomic, retain) IBOutlet UIImageView *imageView;
@property (nonatomic, retain) IBOutlet UILabel *label;
@property (nonatomic, retain) IBOutlet UIButton *playButton;
@property (nonatomic, retain) RTSPPlayer *video;
- (IBAction)playButtonAction:(id)sender;
- (IBAction)showTime:(id)sender;
@end
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/DFUViewController.m
================================================
//
// DFUViewController.m
// DFURTSPPlayer
//
// Created by Bogdan Furdui on 3/7/13.
// Copyright (c) 2013 Bogdan Furdui. All rights reserved.
//
#import "DFUViewController.h"
#import "RTSPPlayer.h"
#import "Utilities.h"
@interface DFUViewController ()
@property (nonatomic, retain) NSTimer *nextFrameTimer;
@end
@implementation DFUViewController
@synthesize imageView, label, playButton, video;
@synthesize nextFrameTimer = _nextFrameTimer;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])) {
//http://www.wowza.com/_h264/BigBuckBunny_115k.mov
//rtsp://media1.law.harvard.edu/Media/policy_a/2012/02/02_unger.mov
//rtsp://streaming.parliament.act.gov.au/medium
video = [[RTSPPlayer alloc] initWithVideo:@"http://112.65.235.145/vlive.qqvideo.tc.qq.com/v00113mzdsr.mp4?vkey=03BDF0A68787D1B7937B386F359603E71EB7DD4C2F924DCCD1A956178BAAD4C5B958596242EB5FF8&br=72&platform=0&fmt=mp4&level=3" usesTcp:NO];
video.outputWidth = 426;
video.outputHeight = 320;
NSLog(@"video duration: %f",video.duration);
NSLog(@"video size: %d x %d", video.sourceWidth, video.sourceHeight);
}
return self;
}
- (void)dealloc
{
[video release];
video = nil;
[imageView release];
imageView = nil;
[label release];
label = nil;
[playButton release];
playButton = nil;
[super dealloc];
}
- (void)viewDidLoad
{
[super viewDidLoad];
[imageView setContentMode:UIViewContentModeScaleAspectFit];
[self playButtonAction:nil];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(IBAction)playButtonAction:(id)sender {
[playButton setEnabled:NO];
lastFrameTime = -1;
// seek to 0.0 seconds
[video seekTime:0.0];
[_nextFrameTimer invalidate];
self.nextFrameTimer = [NSTimer scheduledTimerWithTimeInterval:1.0/30
target:self
selector:@selector(displayNextFrame:)
userInfo:nil
repeats:YES];
}
- (IBAction)showTime:(id)sender
{
NSLog(@"current time: %f s", video.currentTime);
}
#define LERP(A,B,C) ((A)*(1.0-C)+(B)*C)
-(void)displayNextFrame:(NSTimer *)timer
{
NSTimeInterval startTime = [NSDate timeIntervalSinceReferenceDate];
if (![video stepFrame]) {
[timer invalidate];
[playButton setEnabled:YES];
[video closeAudio];
return;
}
imageView.image = video.currentImage;
float frameTime = 1.0/([NSDate timeIntervalSinceReferenceDate]-startTime);
if (lastFrameTime<0) {
lastFrameTime = frameTime;
} else {
lastFrameTime = LERP(frameTime, lastFrameTime, 0.8);
}
[label setText:[NSString stringWithFormat:@"%.0f",lastFrameTime]];
}
@end
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/AudioStreamer.h
================================================
#import <UIKit/UIKit.h>
#import <AudioToolbox/AudioToolbox.h>
#import <AVFoundation/AVFoundation.h>
#import "RTSPPlayer.h"
#define kNumAQBufs 3
#define kAudioBufferSeconds 3
typedef enum _AUDIO_STATE {
AUDIO_STATE_READY = 0,
AUDIO_STATE_STOP = 1,
AUDIO_STATE_PLAYING = 2,
AUDIO_STATE_PAUSE = 3,
AUDIO_STATE_SEEKING = 4
} AUDIO_STATE;
@interface AudioStreamer : NSObject
{
NSString *playingFilePath_;
AudioStreamBasicDescription audioStreamBasicDesc_;
AudioQueueRef audioQueue_;
AudioQueueBufferRef audioQueueBuffer_[kNumAQBufs];
BOOL started_, finished_;
NSTimeInterval durationTime_, startedTime_;
NSInteger state_;
NSTimer *seekTimer_;
NSLock *decodeLock_;
RTSPPlayer *_streamer;
AVCodecContext *_audioCodecContext;
}
- (void)_startAudio;
- (void)_stopAudio;
- (BOOL)createAudioQueue;
- (void)removeAudioQueue;
- (void)audioQueueOutputCallback:(AudioQueueRef)inAQ inBuffer:(AudioQueueBufferRef)inBuffer;
- (void)audioQueueIsRunningCallback;
- (OSStatus)enqueueBuffer:(AudioQueueBufferRef)buffer;
- (id)initWithStreamer:(RTSPPlayer*)streamer;
- (OSStatus)startQueue;
@end
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/AudioStreamer.m
================================================
#import "AudioStreamer.h"
#import "RTSPPlayer.h"
void audioQueueOutputCallback(void *inClientData, AudioQueueRef inAQ,
AudioQueueBufferRef inBuffer);
void audioQueueIsRunningCallback(void *inClientData, AudioQueueRef inAQ,
AudioQueuePropertyID inID);
void audioQueueOutputCallback(void *inClientData, AudioQueueRef inAQ,
AudioQueueBufferRef inBuffer) {
AudioStreamer *audioController = (__bridge AudioStreamer*)inClientData;
[audioController audioQueueOutputCallback:inAQ inBuffer:inBuffer];
}
void audioQueueIsRunningCallback(void *inClientData, AudioQueueRef inAQ,
AudioQueuePropertyID inID) {
AudioStreamer *audioController = (__bridge AudioStreamer*)inClientData;
[audioController audioQueueIsRunningCallback];
}
@interface AudioStreamer ()
@property (nonatomic, assign) RTSPPlayer *streamer;
@property (nonatomic, assign) AVCodecContext *audioCodecContext;
@end
@implementation AudioStreamer
@synthesize streamer = _streamer;
@synthesize audioCodecContext = _audioCodecContext;
- (id)initWithStreamer:(RTSPPlayer*)streamer {
if (self = [super init]) {
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryPlayback error:nil];
_streamer = streamer;
_audioCodecContext = _streamer._audioCodecContext;
}
return self;
}
- (IBAction)playAudio:(UIButton*)sender
{
[self _startAudio];
}
- (IBAction)pauseAudio:(UIButton*)sender
{
if (started_) {
state_ = AUDIO_STATE_PAUSE;
AudioQueuePause(audioQueue_);
AudioQueueReset(audioQueue_);
}
}
- (void)_startAudio
{
NSLog(@"ready to start audio");
if (started_) {
AudioQueueStart(audioQueue_, NULL);
} else {
[self createAudioQueue] ;
[self startQueue];
}
for (NSInteger i = 0; i < kNumAQBufs; ++i) {
[self enqueueBuffer:audioQueueBuffer_[i]];
}
state_ = AUDIO_STATE_PLAYING;
}
- (void)_stopAudio
{
if (started_) {
AudioQueueStop(audioQueue_, YES);
startedTime_ = 0.0;
state_ = AUDIO_STATE_STOP;
finished_ = NO;
}
}
- (BOOL)createAudioQueue
{
state_ = AUDIO_STATE_READY;
finished_ = NO;
if (decodeLock_) {
[decodeLock_ unlock];
decodeLock_ = nil;
}
decodeLock_ = [[NSLock alloc] init];
audioStreamBasicDesc_.mFormatID = -1;
audioStreamBasicDesc_.mSampleRate = _audioCodecContext->sample_rate;
if (audioStreamBasicDesc_.mSampleRate < 1) {
audioStreamBasicDesc_.mSampleRate = 32000;
}
audioStreamBasicDesc_.mFormatFlags = 0;
switch (_audioCodecContext->codec_id) {
case CODEC_ID_MP3:
{
audioStreamBasicDesc_.mFormatID = kAudioFormatMPEGLayer3;
break;
}
case CODEC_ID_AAC:
{
audioStreamBasicDesc_.mFormatID = kAudioFormatMPEG4AAC;
audioStreamBasicDesc_.mFormatFlags = kMPEG4Object_AAC_LC;
audioStreamBasicDesc_.mSampleRate = _audioCodecContext->sample_rate;
audioStreamBasicDesc_.mChannelsPerFrame = _audioCodecContext->channels;
audioStreamBasicDesc_.mBitsPerChannel = 0;
audioStreamBasicDesc_.mFramesPerPacket =_audioCodecContext->frame_size;
audioStreamBasicDesc_.mBytesPerPacket = 0;
audioStreamBasicDesc_.mBytesPerFrame = _audioCodecContext->frame_bits;
audioStreamBasicDesc_.mReserved = 0;
NSLog(@"audio format %s (%d) is supported", _audioCodecContext->codec_descriptor->name, _audioCodecContext->codec_id);
break;
}
case CODEC_ID_AC3:
{
audioStreamBasicDesc_.mFormatID = kAudioFormatAC3;
break;
}
case CODEC_ID_PCM_MULAW:
{
audioStreamBasicDesc_.mFormatID = kAudioFormatULaw;
audioStreamBasicDesc_.mSampleRate = 8000.0;
audioStreamBasicDesc_.mFormatFlags = 0;
audioStreamBasicDesc_.mFramesPerPacket = 1;
audioStreamBasicDesc_.mChannelsPerFrame = 1;
audioStreamBasicDesc_.mBitsPerChannel = 8;
audioStreamBasicDesc_.mBytesPerPacket = 1;
audioStreamBasicDesc_.mBytesPerFrame = 1;
NSLog(@"found audio codec mulaw");
break;
}
default:
{
NSLog(@"Error: audio format '%s' (%d) is not supported", _audioCodecContext->codec_descriptor->name, _audioCodecContext->codec_id);
audioStreamBasicDesc_.mFormatID = kAudioFormatAC3;
break;
}
}
// if (audioStreamBasicDesc_.mFormatID != kAudioFormatULaw) {
// audioStreamBasicDesc_.mBytesPerPacket = 0;
// audioStreamBasicDesc_.mFramesPerPacket = _audioCodecContext->frame_size;
// audioStreamBasicDesc_.mBytesPerFrame = 0;
// audioStreamBasicDesc_.mChannelsPerFrame = _audioCodecContext->channels;
// audioStreamBasicDesc_.mBitsPerChannel = 0;
// }
OSStatus status = AudioQueueNewOutput(&audioStreamBasicDesc_, audioQueueOutputCallback, (__bridge void*)self, NULL, NULL, 0, &audioQueue_);
if (status != noErr) {
NSLog(@"Could not create new output.");
return NO;
}
status = AudioQueueAddPropertyListener(audioQueue_, kAudioQueueProperty_IsRunning, audioQueueIsRunningCallback, (__bridge void*)self);
if (status != noErr) {
NSLog(@"Could not add propery listener. (kAudioQueueProperty_IsRunning)");
return NO;
}
for (NSInteger i = 0; i < kNumAQBufs; ++i) {
status = AudioQueueAllocateBufferWithPacketDescriptions(audioQueue_,
audioStreamBasicDesc_.mSampleRate * kAudioBufferSeconds / 8,
_audioCodecContext->sample_rate * kAudioBufferSeconds / (_audioCodecContext->frame_size + 1),
&audioQueueBuffer_[i]);
if (status != noErr) {
NSLog(@"Could not allocate buffer.");
return NO;
}
}
return YES;
}
- (void)removeAudioQueue
{
[self _stopAudio];
started_ = NO;
for (NSInteger i = 0; i < kNumAQBufs; ++i) {
AudioQueueFreeBuffer(audioQueue_, audioQueueBuffer_[i]);
}
AudioQueueDispose(audioQueue_, YES);
if (decodeLock_) {
[decodeLock_ unlock];
decodeLock_ = nil;
}
}
- (void)audioQueueOutputCallback:(AudioQueueRef)inAQ inBuffer:(AudioQueueBufferRef)inBuffer
{
if (state_ == AUDIO_STATE_PLAYING) {
[self enqueueBuffer:inBuffer];
}
}
- (void)audioQueueIsRunningCallback
{
UInt32 isRunning;
UInt32 size = sizeof(isRunning);
OSStatus status = AudioQueueGetProperty(audioQueue_, kAudioQueueProperty_IsRunning, &isRunning, &size);
if (status == noErr && !isRunning && state_ == AUDIO_STATE_PLAYING) {
state_ = AUDIO_STATE_STOP;
if (finished_) {
}
}
}
- (OSStatus)enqueueBuffer:(AudioQueueBufferRef)buffer
{
OSStatus status = noErr;
if (buffer) {
AudioTimeStamp bufferStartTime;
buffer->mAudioDataByteSize = 0;
buffer->mPacketDescriptionCount = 0;
if (_streamer.audioPacketQueue.count <= 0) {
_streamer.emptyAudioBuffer = buffer;
return status;
}
_streamer.emptyAudioBuffer = nil;
while (_streamer.audioPacketQueue.count && buffer->mPacketDescriptionCount < buffer->mPacketDescriptionCapacity) {
AVPacket *packet = [_streamer readPacket];
if (buffer->mAudioDataBytesCapacity - buffer->mAudioDataByteSize >= packet->size) {
if (buffer->mPacketDescriptionCount == 0) {
bufferStartTime.mSampleTime = packet->dts * _audioCodecContext->frame_size;
bufferStartTime.mFlags = kAudioTimeStampSampleTimeValid;
}
memcpy((uint8_t *)buffer->mAudioData + buffer->mAudioDataByteSize, packet->data, packet->size);
buffer->mPacketDescriptions[buffer->mPacketDescriptionCount].mStartOffset = buffer->mAudioDataByteSize;
buffer->mPacketDescriptions[buffer->mPacketDescriptionCount].mDataByteSize = packet->size;
buffer->mPacketDescriptions[buffer->mPacketDescriptionCount].mVariableFramesInPacket = _audioCodecContext->frame_size;
buffer->mAudioDataByteSize += packet->size;
buffer->mPacketDescriptionCount++;
_streamer.audioPacketQueueSize -= packet->size;
av_free_packet(packet);
}
else {
break;
}
}
[decodeLock_ lock];
if (buffer->mPacketDescriptionCount > 0) {
status = AudioQueueEnqueueBuffer(audioQueue_, buffer, 0, NULL);
if (status != noErr) {
NSLog(@"Could not enqueue buffer.");
}
} else {
AudioQueueStop(audioQueue_, NO);
finished_ = YES;
}
[decodeLock_ unlock];
}
return status;
}
- (OSStatus)startQueue
{
OSStatus status = noErr;
if (!started_) {
status = AudioQueueStart(audioQueue_, NULL);
if (status == noErr) {
started_ = YES;
}
else {
NSLog(@"Could not start audio queue.");
}
}
return status;
}
@end
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/RTSPPlayer.h
================================================
#import <Foundation/Foundation.h>
#import "avformat.h"
#import "avcodec.h"
#import "avio.h"
#import "swscale.h"
#import <AudioToolbox/AudioQueue.h>
#import <AudioToolbox/AudioToolbox.h>
@interface RTSPPlayer : NSObject {
AVFormatContext *pFormatCtx;
AVCodecContext *pCodecCtx;
AVFrame *pFrame;
AVPacket packet;
AVPicture picture;
int videoStream;
int audioStream;
struct SwsContext *img_convert_ctx;
int sourceWidth, sourceHeight;
int outputWidth, outputHeight;
UIImage *currentImage;
double duration;
double currentTime;
NSLock *audioPacketQueueLock;
AVCodecContext *_audioCodecContext;
int16_t *_audioBuffer;
int audioPacketQueueSize;
NSMutableArray *audioPacketQueue;
AVStream *_audioStream;
NSUInteger _audioBufferSize;
BOOL _inBuffer;
AVPacket *_packet, _currentPacket;
BOOL primed;
}
/* Last decoded picture as UIImage */
@property (nonatomic, readonly) UIImage *currentImage;
/* Size of video frame */
@property (nonatomic, readonly) int sourceWidth, sourceHeight;
/* Output image size. Set to the source size by default. */
@property (nonatomic) int outputWidth, outputHeight;
/* Length of video in seconds */
@property (nonatomic, readonly) double duration;
/* Current time of video in seconds */
@property (nonatomic, readonly) double currentTime;
@property (nonatomic, retain) NSMutableArray *audioPacketQueue;
@property (nonatomic, assign) AVCodecContext *_audioCodecContext;
@property (nonatomic, assign) AudioQueueBufferRef emptyAudioBuffer;
@property (nonatomic, assign) int audioPacketQueueSize;
@property (nonatomic, assign) AVStream *_audioStream;
/* Initialize with movie at moviePath. Output dimensions are set to source dimensions. */
-(id)initWithVideo:(NSString *)moviePath usesTcp:(BOOL)usesTcp;
/* Read the next frame from the video stream. Returns false if no frame read (video over). */
-(BOOL)stepFrame;
/* Seek to closest keyframe near specified time */
-(void)seekTime:(double)seconds;
-(void)closeAudio;
- (AVPacket*)readPacket;
@end
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/RTSPPlayer.m
================================================
#import "RTSPPlayer.h"
#import "Utilities.h"
#import "AudioStreamer.h"
#ifndef AVCODEC_MAX_AUDIO_FRAME_SIZE
# define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio
#endif
@interface RTSPPlayer ()
@property (nonatomic, retain) AudioStreamer *audioController;
@end
@interface RTSPPlayer (private)
-(void)convertFrameToRGB;
-(UIImage *)imageFromAVPicture:(AVPicture)pict width:(int)width height:(int)height;
-(void)savePicture:(AVPicture)pFrame width:(int)width height:(int)height index:(int)iFrame;
-(void)setupScaler;
@end
@implementation RTSPPlayer
@synthesize audioController = _audioController;
@synthesize audioPacketQueue,audioPacketQueueSize;
@synthesize _audioStream,_audioCodecContext;
@synthesize emptyAudioBuffer;
@synthesize outputWidth, outputHeight;
- (void)setOutputWidth:(int)newValue
{
if (outputWidth != newValue) {
outputWidth = newValue;
[self setupScaler];
}
}
- (void)setOutputHeight:(int)newValue
{
if (outputHeight != newValue) {
outputHeight = newValue;
[self setupScaler];
}
}
- (UIImage *)currentImage
{
if (!pFrame->data[0]) return nil;
[self convertFrameToRGB];
return [self imageFromAVPicture:picture width:outputWidth height:outputHeight];
}
- (double)duration
{
return (double)pFormatCtx->duration / AV_TIME_BASE;
}
- (double)currentTime
{
AVRational timeBase = pFormatCtx->streams[videoStream]->time_base;
return packet.pts * (double)timeBase.num / timeBase.den;
}
- (int)sourceWidth
{
return pCodecCtx->width;
}
- (int)sourceHeight
{
return pCodecCtx->height;
}
- (id)initWithVideo:(NSString *)moviePath usesTcp:(BOOL)usesTcp
{
if (!(self=[super init])) return nil;
AVCodec *pCodec;
// Register all formats and codecs
avcodec_register_all();
av_register_all();
avformat_network_init();
// Set the RTSP Options
AVDictionary *opts = 0;
if (usesTcp)
av_dict_set(&opts, "rtsp_transport", "tcp", 0);
if (avformat_open_input(&pFormatCtx, [moviePath UTF8String], NULL, &opts) !=0 ) {
av_log(NULL, AV_LOG_ERROR, "Couldn't open file\n");
goto initError;
}
// Retrieve stream information
if (avformat_find_stream_info(pFormatCtx,NULL) < 0) {
av_log(NULL, AV_LOG_ERROR, "Couldn't find stream information\n");
goto initError;
}
// Find the first video stream
videoStream=-1;
audioStream=-1;
for (int i=0; i<pFormatCtx->nb_streams; i++) {
if (pFormatCtx->streams[i]->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
NSLog(@"found video stream");
videoStream=i;
}
if (pFormatCtx->streams[i]->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
audioStream=i;
NSLog(@"found audio stream");
}
}
if (videoStream==-1 && audioStream==-1) {
goto initError;
}
// Get a pointer to the codec context for the video stream
pCodecCtx = pFormatCtx->streams[videoStream]->codec;
// Find the decoder for the video stream
pCodec = avcodec_find_decoder(pCodecCtx->codec_id);
if (pCodec == NULL) {
av_log(NULL, AV_LOG_ERROR, "Unsupported codec!\n");
goto initError;
}
// Open codec
if (avcodec_open2(pCodecCtx, pCodec, NULL) < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot open video decoder\n");
goto initError;
}
if (audioStream > -1 ) {
NSLog(@"set up audiodecoder");
[self setupAudioDecoder];
}
// Allocate video frame
pFrame = av_frame_alloc();
outputWidth = pCodecCtx->width;
self.outputHeight = pCodecCtx->height;
return self;
initError:
[self release];
return nil;
}
- (void)setupScaler
{
// Release old picture and scaler
avpicture_free(&picture);
sws_freeContext(img_convert_ctx);
// Allocate RGB picture
avpicture_alloc(&picture, PIX_FMT_RGB24, outputWidth, outputHeight);
// Setup scaler
static int sws_flags = SWS_FAST_BILINEAR;
img_convert_ctx = sws_getContext(pCodecCtx->width,
pCodecCtx->height,
pCodecCtx->pix_fmt,
outputWidth,
outputHeight,
PIX_FMT_RGB24,
sws_flags, NULL, NULL, NULL);
}
- (void)seekTime:(double)seconds
{
AVRational timeBase = pFormatCtx->streams[videoStream]->time_base;
int64_t targetFrame = (int64_t)((double)timeBase.den / timeBase.num * seconds);
avformat_seek_file(pFormatCtx, videoStream, targetFrame, targetFrame, targetFrame, AVSEEK_FLAG_FRAME);
avcodec_flush_buffers(pCodecCtx);
}
- (void)dealloc
{
// Free scaler
sws_freeContext(img_convert_ctx);
// Free RGB picture
avpicture_free(&picture);
// Free the packet that was allocated by av_read_frame
av_free_packet(&packet);
// Free the YUV frame
av_free(pFrame);
// Close the codec
if (pCodecCtx) avcodec_close(pCodecCtx);
// Close the video file
if (pFormatCtx) avformat_close_input(&pFormatCtx);
[_audioController _stopAudio];
[_audioController release];
_audioController = nil;
[audioPacketQueue release];
audioPacketQueue = nil;
[audioPacketQueueLock release];
audioPacketQueueLock = nil;
[super dealloc];
}
- (BOOL)stepFrame
{
// AVPacket packet;
int frameFinished=0;
while (!frameFinished && av_read_frame(pFormatCtx, &packet) >=0 ) {
// Is this a packet from the video stream?
if(packet.stream_index==videoStream) {
// Decode video frame
avcodec_decode_video2(pCodecCtx, pFrame, &frameFinished, &packet);
}
if (packet.stream_index==audioStream) {
// NSLog(@"audio stream");
[audioPacketQueueLock lock];
audioPacketQueueSize += packet.size;
[audioPacketQueue addObject:[NSMutableData dataWithBytes:&packet length:sizeof(packet)]];
[audioPacketQueueLock unlock];
if (!primed) {
primed=YES;
[_audioController _startAudio];
}
if (emptyAudioBuffer) {
[_audioController enqueueBuffer:emptyAudioBuffer];
}
}
}
av_free_packet (&packet);
return frameFinished!=0;
}
- (void)convertFrameToRGB
{
if(img_convert_ctx != NULL){
sws_scale(img_convert_ctx,
(const uint8_t *const *)pFrame->data,
pFrame->linesize,
0,
pCodecCtx->height,
picture.data,
picture.linesize);
}
}
- (UIImage *)imageFromAVPicture:(AVPicture)pict width:(int)width height:(int)height
{
CGBitmapInfo bitmapInfo = kCGBitmapByteOrderDefault;
CFDataRef data = CFDataCreateWithBytesNoCopy(kCFAllocatorDefault, pict.data[0], pict.linesize[0]*height,kCFAllocatorNull);
CGDataProviderRef provider = CGDataProviderCreateWithCFData(data);
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGImageRef cgImage = CGImageCreate(width,
height,
8,
24,
pict.linesize[0],
colorSpace,
bitmapInfo,
provider,
NULL,
NO,
kCGRenderingIntentDefault);
CGColorSpaceRelease(colorSpace);
UIImage *image = [UIImage imageWithCGImage:cgImage];
CGImageRelease(cgImage);
CGDataProviderRelease(provider);
CFRelease(data);
return image;
}
- (void)setupAudioDecoder
{
if (audioStream >= 0) {
_audioBufferSize = AVCODEC_MAX_AUDIO_FRAME_SIZE;
_audioBuffer = av_malloc(_audioBufferSize);
_inBuffer = NO;
_audioCodecContext = pFormatCtx->streams[audioStream]->codec;
_audioStream = pFormatCtx->streams[audioStream];
AVCodec *codec = avcodec_find_decoder(_audioCodecContext->codec_id);
if (codec == NULL) {
NSLog(@"Not found audio codec.");
return;
}
if (avcodec_open2(_audioCodecContext, codec, NULL) < 0) {
NSLog(@"Could not open audio codec.");
return;
}
if (audioPacketQueue) {
[audioPacketQueue release];
audioPacketQueue = nil;
}
audioPacketQueue = [[NSMutableArray alloc] init];
if (audioPacketQueueLock) {
[audioPacketQueueLock release];
audioPacketQueueLock = nil;
}
audioPacketQueueLock = [[NSLock alloc] init];
if (_audioController) {
[_audioController _stopAudio];
[_audioController release];
_audioController = nil;
}
_audioController = [[AudioStreamer alloc] initWithStreamer:self];
} else {
pFormatCtx->streams[audioStream]->discard = AVDISCARD_ALL;
audioStream = -1;
}
}
- (void)nextPacket
{
_inBuffer = NO;
}
- (AVPacket*)readPacket
{
if (_currentPacket.size > 0 || _inBuffer) return &_currentPacket;
NSMutableData *packetData = [audioPacketQueue objectAtIndex:0];
_packet = [packetData mutableBytes];
if (_packet) {
if (_packet->dts != AV_NOPTS_VALUE) {
_packet->dts += av_rescale_q(0, AV_TIME_BASE_Q, _audioStream->time_base);
}
if (_packet->pts != AV_NOPTS_VALUE) {
_packet->pts += av_rescale_q(0, AV_TIME_BASE_Q, _audioStream->time_base);
}
[audioPacketQueueLock lock];
audioPacketQueueSize -= _packet->size;
if ([audioPacketQueue count] > 0) {
[audioPacketQueue removeObjectAtIndex:0];
}
[audioPacketQueueLock unlock];
_currentPacket = *(_packet);
}
return &_currentPacket;
}
- (void)closeAudio
{
[_audioController _stopAudio];
primed=NO;
}
- (void)savePPMPicture:(AVPicture)pict width:(int)width height:(int)height index:(int)iFrame
{
FILE *pFile;
NSString *fileName;
int y;
fileName = [Utilities documentsPath:[NSString stringWithFormat:@"image%04d.ppm",iFrame]];
// Open file
NSLog(@"write image file: %@",fileName);
pFile=fopen([fileName cStringUsingEncoding:NSASCIIStringEncoding], "wb");
if (pFile == NULL) {
return;
}
// Write header
fprintf(pFile, "P6\n%d %d\n255\n", width, height);
// Write pixel data
for (y=0; y<height; y++) {
fwrite(pict.data[0]+y*pict.linesize[0], 1, width*3, pFile);
}
// Close file
fclose(pFile);
}
@end
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/Utilities.h
================================================
//
// Utilities.h
// iFrameExtractor
//
// Created by lajos on 1/10/10.
//
// Copyright 2010 Lajos Kamocsay
//
// lajos at codza dot com
//
// iFrameExtractor is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// iFrameExtractor is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
#import <Foundation/Foundation.h>
@interface Utilities : NSObject {
}
+(NSString *)bundlePath:(NSString *)fileName;
+(NSString *)documentsPath:(NSString *)fileName;
@end
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/Utilities.m
================================================
//
// Utilities.m
// iFrameExtractor
//
// Created by lajos on 1/10/10.
//
// Copyright 2010 Lajos Kamocsay
//
// lajos at codza dot com
//
// iFrameExtractor is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// iFrameExtractor is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
#import "Utilities.h"
@implementation Utilities
+(NSString *)bundlePath:(NSString *)fileName {
return [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:fileName];
}
+(NSString *)documentsPath:(NSString *)fileName {
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
return [documentsDirectory stringByAppendingPathComponent:fileName];
}
@end
================================================
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/avcodec.h
================================================
/*
* copyright (c) 2001 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_AVCODEC_H
#define AVCODEC_AVCODEC_H
/**
* @file
* @ingroup libavc
* Libavcodec external API header
*/
#include <errno.h>
#include "libavutil/samplefmt.h"
#include "libavutil/attributes.h"
#include "libavutil/avutil.h"
#include "libavutil/buffer.h"
#include "libavutil/cpu.h"
#include "libavutil/channel_layout.h"
#include "libavutil/dict.h"
#include "libavutil/frame.h"
#include "libavutil/log.h"
#include "libavutil/pixfmt.h"
#include "libavutil/rational.h"
#include "version.h"
/**
* @defgroup libavc Encoding/Decoding Library
* @{
*
* @defgroup lavc_decoding Decoding
* @{
* @}
*
* @defgroup lavc_encoding Encoding
* @{
* @}
*
* @defgroup lavc_codec Codecs
* @{
* @defgroup lavc_codec_native Native Codecs
* @{
* @}
* @defgroup lavc_codec_wrappers External library wrappers
* @{
* @}
* @defgroup lavc_codec_hwaccel Hardware Accelerators bridge
* @{
* @}
* @}
* @defgroup lavc_internal Internal
* @{
* @}
* @}
*
*/
/**
* @defgroup lavc_core Core functions/structures.
* @ingroup libavc
*
* Basic definitions, functions for querying libavcodec capabilities,
* allocating core structures, etc.
* @{
*/
/**
* Identify the syntax and semantics of the bitstream.
* The principle is roughly:
* Two decoders with the same ID can decode the same streams.
* Two encoders with the same ID can encode compatible streams.
* There may be slight deviations from the principle due to implementation
* details.
*
* If you add a codec ID to this list, add it so that
* 1. no value of a existing codec ID changes (that would break ABI),
* 2. Give it a value which when taken as ASCII is recognized uniquely by a human as this specific codec.
* This ensures that 2 forks can independently add AVCodecIDs without producing conflicts.
*
* After adding new codec IDs, do not forget to add an entry to the codec
* descriptor list and bump libavcodec minor version.
*/
enum AVCodecID {
AV_CODEC_ID_NONE,
/* video codecs */
AV_CODEC_ID_MPEG1VIDEO,
AV_CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
#if FF_API_XVMC
AV_CODEC_ID_MPEG2VIDEO_XVMC,
#endif /* FF_API_XVMC */
AV_CODEC_ID_H261,
AV_CODEC_ID_H263,
AV_CODEC_ID_RV10,
AV_CODEC_ID_RV20,
AV_CODEC_ID_MJPEG,
AV_CODEC_ID_MJPEGB,
AV_CODEC_ID_LJPEG,
AV_CODEC_ID_SP5X,
AV_CODEC_ID_JPEGLS,
AV_CODEC_ID_MPEG4,
AV_CODEC_ID_RAWVIDEO,
AV_CODEC_ID_MSMPEG4V1,
AV_CODEC_ID_MSMPEG4V2,
AV_CODEC_ID_MSMPEG4V3,
AV_CODEC_ID_WMV1,
AV_CODEC_ID_WMV2,
AV_CODEC_ID_H263P,
AV_CODEC_ID_H263I,
AV_CODEC_ID_FLV1,
AV_CODEC_ID_SVQ1,
AV_CODEC_ID_SVQ3,
AV_CODEC_ID_DVVIDEO,
AV_CODEC_ID_HUFFYUV,
AV_CODEC_ID_CYUV,
AV_CODEC_ID_H264,
AV_CODEC_ID_INDEO3,
AV_CODEC_ID_VP3,
AV_CODEC_ID_THEORA,
AV_CODEC_ID_ASV1,
AV_CODEC_ID_ASV2,
AV_CODEC_ID_FFV1,
AV_CODEC_ID_4XM,
AV_CODEC_ID_VCR1,
AV_CODEC_ID_CLJR,
AV_CODEC_ID_MDEC,
AV_CODEC_ID_ROQ,
AV_CODEC_ID_INTERPLAY_VIDEO,
AV_CODEC_ID_XAN_WC3,
AV_CODEC_ID_XAN_WC4,
AV_CODEC_ID_RPZA,
AV_CODEC_ID_CINEPAK,
AV_CODEC_ID_WS_VQA,
AV_CODEC_ID_MSRLE,
AV_CODEC_ID_MSVIDEO1,
AV_CODEC_ID_IDCIN,
AV_CODEC_ID_8BPS,
AV_CODEC_ID_SMC,
AV_CODEC_ID_FLIC,
AV_CODEC_ID_TRUEMOTION1,
AV_CODEC_ID_VMDVIDEO,
AV_CODEC_ID_MSZH,
AV_CODEC_ID_ZLIB,
AV_CODEC_ID_QTRLE,
AV_CODEC_ID_TSCC,
AV_CODEC_ID_ULTI,
AV_CODEC_ID_QDRAW,
AV_CODEC_ID_VIXL,
AV_CODEC_ID_QPEG,
AV_CODEC_ID_PNG,
AV_CODEC_ID_PPM,
AV_CODEC_ID_PBM,
AV_CODEC_ID_PGM,
AV_CODEC_ID_PGMYUV,
AV_CODEC_ID_PAM,
AV_CODEC_ID_FFVHUFF,
AV_CODEC_ID_RV30,
AV_CODEC_ID_RV40,
AV_CODEC_ID_VC1,
AV_CODEC_ID_WMV3,
AV_CODEC_ID_LOCO,
AV_CODEC_ID_WNV1,
AV_CODEC_ID_AASC,
AV_CODEC_ID_INDEO2,
AV_CODEC_ID_FRAPS,
AV_CODEC_ID_TRUEMOTION2,
AV_CODEC_ID_BMP,
AV_CODEC_ID_CSCD,
AV_CODEC_ID_MMVIDEO,
AV_CODEC_ID_ZMBV,
AV_CODEC_ID_AVS,
AV_CODEC_ID_SMACKVIDEO,
AV_CODEC_ID_NUV,
AV_CODEC_ID_KMVC,
AV_CODEC_ID_FLASHSV,
AV_CODEC_ID_CAVS,
AV_CODEC_ID_JPEG2000,
AV_CODEC_ID_VMNC,
AV_CODEC_ID_VP5,
AV_CODEC_ID_VP6,
AV_CODEC_ID_VP6F,
AV_CODEC_ID_TARGA,
AV_CODEC_ID_DSICINVIDEO,
AV_CODEC_ID_TIERTEXSEQVIDEO,
AV_CODEC_ID_TIFF,
AV_CODEC_ID_GIF,
AV_CODEC_ID_DXA,
AV_CODEC_ID_DNXHD,
AV_CODEC_ID_THP,
AV_CODEC_ID_SGI,
AV_CODEC_ID_C93,
AV_CODEC_ID_BETHSOFTVID,
AV_CODEC_ID_PTX,
AV_CODEC_ID_TXD,
AV_CODEC_ID_VP6A,
AV_CODEC_ID_AMV,
AV_CODEC_ID_VB,
AV_CODEC_ID_PCX,
AV_CODEC_ID_SUNRAST,
AV_CODEC_ID_INDEO4,
AV_CODEC_ID_INDEO5,
AV_CODEC_ID_MIMIC,
AV_CODEC_ID_RL2,
AV_CODEC_ID_ESCAPE124,
AV_CODEC_ID_DIRAC,
AV_CODEC_ID_BFI,
AV_CODEC_ID_CMV,
AV_CODEC_ID_MOTIONPIXELS,
AV_CODEC_ID_TGV,
AV_CODEC_ID_TGQ,
AV_CODEC_ID_TQI,
AV_CODEC_ID_AURA,
AV_CODEC_ID_AURA2,
AV_CODEC_ID_V210X,
AV_CODEC_ID_TMV,
AV_CODEC_ID_V210,
AV_CODEC_ID_DPX,
AV_CODEC_ID_MAD,
AV_CODEC_ID_FRWU,
AV_CODEC_ID_FLASHSV2,
AV_CODEC_ID_CDGRAPHICS,
AV_CODEC_ID_R210,
AV_CODEC_ID_ANM,
AV_CODEC_ID_BINKVIDEO,
AV_CODEC_ID_IFF_ILBM,
AV_CODEC_ID_IFF_BYTERUN1,
AV_CODEC_ID_KGV1,
AV_CODEC_ID_YOP,
AV_CODEC_ID_VP8,
AV_CODEC_ID_PICTOR,
AV_CODEC_ID_ANSI,
AV_CODEC_ID_A64_MULTI,
AV_CODEC_ID_A64_MULTI5,
AV_CODEC_ID_R10K,
AV_CODEC_ID_MXPEG,
AV_CODEC_ID_LAGARITH,
AV_CODEC_ID_PRORES,
AV_CODEC_ID_JV,
AV_CODEC_ID_DFA,
AV_CODEC_ID_WMV3IMAGE,
AV_CODEC_ID_VC1IMAGE,
AV_CODEC_ID_UTVIDEO,
AV_CODEC_ID_BMV_VIDEO,
AV_CODEC_ID_VBLE,
AV_CODEC_ID_DXTORY,
AV_CODEC_ID_V410,
AV_CODEC_ID_XWD,
AV_CODEC_ID_CDXL,
AV_CODEC_ID_XBM,
AV_CODEC_ID_ZEROCODEC,
AV_CODEC_ID_MSS1,
AV_CODEC_ID_MSA1,
AV_CODEC_ID_TSCC2,
AV_CODEC_ID_MTS2,
AV_CODEC_ID_CLLC,
AV_CODEC_ID_MSS2,
AV_CODEC_ID_VP9,
AV_CODEC_ID_AIC,
AV_CODEC_ID_ESCAPE130_DEPRECATED,
AV_CODEC_ID_G2M_DEPRECATED,
AV_CODEC_ID_WEBP_DEPRECATED,
AV_CODEC_ID_HNM4_VIDEO,
AV_CODEC_ID_HEVC_DEPRECATED,
AV_CODEC_ID_FIC,
AV_CODEC_ID_ALIAS_PIX,
AV_CODEC_ID_BRENDER_PIX_DEPRECATED,
AV_CODEC_ID_PAF_VIDEO_DEPRECATED,
AV_CODEC_ID_EXR_DEPRECATED,
AV_CODEC_ID_VP7_DEPRECATED,
AV_CODEC_ID_SANM_DEPRECATED,
AV_CODEC_ID_SGIRLE_DEPRECATED,
AV_CODEC_ID_MVC1_DEPRECATED,
AV_CODEC_ID_MVC2_DEPRECATED,
AV_CODEC_ID_HQX,
AV_CODEC_ID_BRENDER_PIX= MKBETAG('B','P','I','X'),
AV_CODEC_ID_Y41P = MKBETAG('Y','4','1','P'),
AV_CODEC_ID_ESCAPE130 = MKBETAG('E','1','3','0'),
AV_CODEC_ID_EXR = MKBETAG('0','E','X','R'),
AV_CODEC_ID_AVRP = MKBETAG('A','V','R','P'),
AV_CODEC_ID_012V = MKBETAG('0','1','2','V'),
AV_CODEC_ID_G2M = MKBETAG( 0 ,'G','2','M'),
AV_CODEC_ID_AVUI = MKBETAG('A','V','U','I'),
AV_CODEC_ID_AYUV = MKBETAG('A','Y','U','V'),
AV_CODEC_ID_TARGA_Y216 = MKBETAG('T','2','1','6'),
AV_CODEC_ID_V308 = MKBETAG('V','3','0','8'),
AV_CODEC_ID_V408 = MKBETAG('V','4','0','8'),
AV_CODEC_ID_YUV4 = MKBETAG('Y','U','V','4'),
AV_CODEC_ID_SANM = MKBETAG('S','A','N','M'),
AV_CODEC_ID_PAF_VIDEO = MKBETAG('P','A','F','V'),
AV_CODEC_ID_AVRN = MKBETAG('A','V','R','n'),
AV_CODEC_ID_CPIA = MKBETAG('C','P','I','A'),
AV_CODEC_ID_XFACE = MKBETAG('X','F','A','C'),
AV_CODEC_ID_SGIRLE = MKBETAG('S','G','I','R'),
AV_CODEC_ID_MVC1 = MKBETAG('M','V','C','1'),
AV_CODEC_ID_MVC2 = MKBETAG('M','V','C','2'),
AV_CODEC_ID_SNOW = MKBETAG('S','N','O','W'),
AV_CODEC_ID_WEBP = MKBETAG('W','E','B','P'),
AV_CODEC_ID_SMVJPEG = MKBETAG('S','M','V','J'),
AV_CODEC_ID_HEVC = MKBETAG('H','2','6','5'),
#define AV_CODEC_ID_H265 AV_CODEC_ID_HEVC
AV_CODEC_ID_VP7 = MKBETAG('V','P','7','0'),
AV_CODEC_ID_APNG = MKBETAG('A','P','N','G'),
/* various PCM "codecs" */
AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs
AV_CODEC_ID_PCM_S16LE = 0x10000,
AV_CODEC_ID_PCM_S16BE,
AV_CODEC_ID_PCM_U16LE,
AV_CODEC_ID_PCM_U16BE,
AV_CODEC_ID_PCM_S8,
AV_CODEC_ID_PCM_U8,
AV_CODEC_ID_PCM_MULAW,
AV_CODEC_ID_PCM_ALAW,
AV_CODEC_ID_PCM_S32LE,
AV_CODEC_ID_PCM_S32BE,
AV_CODEC_ID_PCM_U32LE,
AV_CODEC_ID_PCM_U32BE,
AV_CODEC_ID_PCM_S24LE,
AV_CODEC_ID_PCM_S24BE,
AV_CODEC_ID_PCM_U24LE,
AV_CODEC_ID_PCM_U24BE,
AV_CODEC_ID_PCM_S24DAUD,
AV_CODEC_ID_PCM_ZORK,
AV_CODEC_ID_PCM_S16LE_PLANAR,
AV_CODEC_ID_PCM_DVD,
AV_CODEC_ID_PCM_F32BE,
AV_CODEC_ID_PCM_F32LE,
AV_CODEC_ID_PCM_F64BE,
AV_CODEC_ID_PCM_F64LE,
AV_CODEC_ID_PCM_BLURAY,
AV_CODEC_ID_PCM_LXF,
AV_CODEC_ID_S302M,
AV_CODEC_ID_PCM_S8_PLANAR,
AV_CODEC_ID_PCM_S24LE_PLANAR_DEPRECATED,
AV_CODEC_ID_PCM_S32LE_PLANAR_DEPRECATED,
AV_CODEC_ID_PCM_S24LE_PLANAR = MKBETAG(24,'P','S','P'),
AV_CODEC_ID_PCM_S32LE_PLANAR = MKBETAG(32,'P','S','P'),
AV_CODEC_ID_PCM_S16BE_PLANAR = MKBETAG('P','S','P',16),
/* various ADPCM codecs */
AV_CODEC_ID_ADPCM_IMA_QT = 0x11000,
AV_CODEC_ID_ADPCM_IMA_WAV,
AV_CODEC_ID_ADPCM_IMA_DK3,
AV_CODEC_ID_ADPCM_IMA_DK4,
AV_CODEC_ID_ADPCM_IMA_WS,
AV_CODEC_ID_ADPCM_IMA_SMJPEG,
AV_CODEC_ID_ADPCM_MS,
AV_CODEC_ID_ADPCM_4XM,
AV_CODEC_ID_ADPCM_XA,
AV_CODEC_ID_ADPCM_ADX,
AV_CODEC_ID_ADPCM_EA,
AV_CODEC_ID_ADPCM_G726,
AV_CODEC_ID_ADPCM_CT,
AV_CODEC_ID_ADPCM_SWF,
AV_CODEC_ID_ADPCM_YAMAHA,
AV_CODEC_ID_ADPCM_SBPRO_4,
AV_CODEC_ID_ADPCM_SBPRO_3,
AV_CODEC_ID_ADPCM_SBPRO_2,
AV_CODEC_ID_ADPCM_THP,
AV_CODEC_ID_ADPCM_IMA_AMV,
AV_CODEC_ID_ADPCM_EA_R1,
AV_CODEC_ID_ADPCM_EA_R3,
AV_CODEC_ID_ADPCM_EA_R2,
AV_CODEC_ID_ADPCM_IMA_EA_SEAD,
AV_CODEC_ID_ADPCM_IMA_EA_EACS,
AV_CODEC_ID_ADPCM_EA_XAS,
AV_CODEC_ID_ADPCM_EA_MAXIS_XA,
AV_CODEC_ID_ADPCM_IMA_ISS,
AV_CODEC_ID_ADPCM_G722,
AV_CODEC_ID_ADPCM_IMA_APC,
AV_CODEC_ID_ADPCM_VIMA_DEPRECATED,
AV_CODEC_ID_ADPCM_VIMA = MKBETAG('V','I','M','A'),
#if FF_API_VIMA_DECODER
AV_CODEC_ID_VIMA = MKBETAG('V','I','M','A'),
#endif
AV_CODEC_ID_ADPCM_AFC = MKBETAG('A','F','C',' '),
AV_CODEC_ID_ADPCM_IMA_OKI = MKBETAG('O','K','I',' '),
AV_CODEC_ID_ADPCM_DTK = MKBETAG('D','T','K',' '),
AV_CODEC_ID_ADPCM_IMA_RAD = MKBETAG('R','A','D',' '),
AV_CODEC_ID_ADPCM_G726LE = MKBETAG('6','2','7','G'),
/* AMR */
AV_CODEC_ID_AMR_NB = 0x12000,
AV_CODEC_ID_AMR_WB,
/* RealAudio codecs*/
AV_CODEC_ID_RA_144 = 0x13000,
AV_CODEC_ID_RA_288,
/* various DPCM codecs */
AV_CODEC_ID_ROQ_DPCM = 0x14000,
AV_CODEC_ID_INTERPLAY_DPCM,
AV_CODEC_ID_XAN_DPCM,
AV_CODEC_ID_SOL_DPCM,
/* audio codecs */
AV_CODEC_ID_MP2 = 0x15000,
AV_CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
AV_CODEC_ID_AAC,
AV_CODEC_ID_AC3,
AV_CODEC_ID_DTS,
AV_CODEC_ID_VORBIS,
AV_CODEC_ID_DVAUDIO,
AV_CODEC_ID_WMAV1,
AV_CODEC_ID_WMAV2,
AV_CODEC_ID_MACE3,
AV_CODEC_ID_MACE6,
AV_CODEC_ID_VMDAUDIO,
AV_CODEC_ID_FLAC,
AV_CODEC_ID_MP3ADU,
AV_CODEC_ID_MP3ON4,
AV_CODEC_ID_SHORTEN,
AV_CODEC_ID_ALAC,
AV_CODEC_ID_WESTWOOD_SND1,
AV_CODEC_ID_GSM, ///< as in Berlin toast format
AV_CODEC_ID_QDM2,
AV_CODEC_ID_COOK,
AV_CODEC_ID_TRUESPEECH,
AV_CODEC_ID_TTA,
AV_CODEC_ID_SMACKAUDIO,
AV_CODEC_ID_QCELP,
AV_CODEC_ID_WAVPACK,
AV_CODEC_ID_DSICINAUDIO,
AV_CODEC_ID_IMC,
AV_CODEC_ID_MUSEPACK7,
AV_CODEC_ID_MLP,
AV_CODEC_ID_GSM_MS, /* as found in WAV */
AV_CODEC_ID_ATRAC3,
#if FF_API_VOXWARE
AV_CODEC_ID_VOXWARE,
#endif
AV_CODEC_ID_APE,
AV_CODEC_ID_NELLYMOSER,
AV_CODEC_ID_MUSEPACK8,
AV_CODEC_ID_SPEEX,
AV_CODEC_ID_WMAVOICE,
AV_CODEC_ID_WMAPRO,
AV_CODEC_ID_WMALOSSLESS,
AV_CODEC_ID_ATRAC3P,
AV_CODEC_ID_EAC3,
AV_CODEC_ID_SIPR,
AV_CODEC_ID_MP1,
AV_CODEC_ID_TWINVQ,
AV_CODEC_ID_TRUEHD,
AV_CODEC_ID_MP4ALS,
AV_CODEC_ID_ATRAC1,
AV_CODEC_ID_BINKAUDIO_RDFT,
AV_CODEC_ID_BINKAUDIO_DCT,
AV_CODEC_ID_AAC_LATM,
AV_CODEC_ID_QDMC,
AV_CODEC_ID_CELT,
AV_CODEC_ID_G723_1,
AV_CODEC_ID_G729,
AV_CODEC_ID_8SVX_EXP,
AV_CODEC_ID_8SVX_FIB,
AV_CODEC_ID_BMV_AUDIO,
AV_CODEC_ID_RALF,
AV_CODEC_ID_IAC,
AV_CODEC_ID_ILBC,
AV_CODEC_ID_OPUS_DEPRECATED,
AV_CODEC_ID_COMFORT_NOISE,
AV_CODEC_ID_TAK_DEPRECATED,
AV_CODEC_ID_METASOUND,
AV_CODEC_ID_PAF_AUDIO_DEPRECATED,
AV_CODEC_ID_ON2AVC,
AV_CODEC_ID_DSS_SP,
AV_CODEC_ID_FFWAVESYNTH = MKBETAG('F','F','W','S'),
AV_CODEC_ID_SONIC = MKBETAG('S','O','N','C'),
AV_CODEC_ID_SONIC_LS = MKBETAG('S','O','N','L'),
AV_CODEC_ID_PAF_AUDIO = MKBETAG('P','A','F','A'),
AV_CODEC_ID_OPUS = MKBETAG('O','P','U','S'),
AV_CODEC_ID_TAK = MKBETAG('t','B','a','K'),
AV_CODEC_ID_EVRC = MKBETAG('s','e','v','c'),
AV_CODEC_ID_SMV = MKBETAG('s','s','m','v'),
AV_CODEC_ID_DSD_LSBF = MKBETAG('D','S','D','L'),
AV_CODEC_ID_DSD_MSBF = MKBETAG('D','S','D','M'),
AV_CODEC_ID_DSD_LSBF_PLANAR = MKBETAG('D','S','D','1'),
AV_CODEC_ID_DSD_MSBF_PLANAR = MKBETAG('D','S','D','8'),
/* subtitle codecs */
AV_CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs.
AV_CODEC_ID_DVD_SUBTITLE = 0x17000,
AV_CODEC_ID_DVB_SUBTITLE,
AV_CODEC_ID_TEXT, ///< raw UTF-8 text
AV_CODEC_ID_XSUB,
AV_CODEC_ID_SSA,
AV_CODEC_ID_MOV_TEXT,
AV_CODEC_ID_HDMV_PGS_SUBTITLE,
AV_CODEC_ID_DVB_TELETEXT,
AV_CODEC_ID_SRT,
AV_CODEC_ID_MICRODVD = MKBETAG('m','D','V','D'),
AV_CODEC_ID_EIA_608 = MKBETAG('c','6','0','8'),
AV_CODEC_ID_JACOSUB = MKBETAG('J','S','U','B'),
AV_CODEC_ID_SAMI = MKBETAG('S','A','M','I'),
AV_CODEC_ID_REALTEXT = MKBETAG('R','T','X','T'),
AV_CODEC_ID_STL = MKBETAG('S','p','T','L'),
AV_CODEC_ID_SUBVIEWER1 = MKBETAG('S','b','V','1'),
AV_CODEC_ID_SUBVIEWER = MKBETAG('S','u','b','V'),
AV_CODEC_ID_SUBRIP = MKBETAG('S','R','i','p'),
AV_CODEC_ID_WEBVTT = MKBETAG('W','V','T','T'),
AV_CODEC_ID_MPL2 = MKBETAG('M','P','L','2'),
AV_CODEC_ID_VPLAYER = MKBETAG('V','P','l','r'),
AV_CODEC_ID_PJS = MKBETAG('P','h','J','S'),
AV_CODEC_ID_ASS = MKBETAG('A','S','S',' '), ///< ASS as defined in Matroska
/* other specific kind of codecs (generally used for attachments) */
AV_CODEC_ID_FIRST_UNKNOWN = 0x18000, ///< A dummy ID pointing at the start of various fake codecs.
AV_CODEC_ID_TTF = 0x18000,
AV_CODEC_ID_BINTEXT = MKBETAG('B','T','X','T'),
AV_CODEC_ID_XBIN = MKBETAG('X','B','I','N'),
AV_CODEC_ID_IDF = MKBETAG( 0 ,'I','D','F'),
AV_CODEC_ID_OTF = MKBETAG( 0 ,'O','T','F'),
AV_CODEC_ID_SMPTE_KLV = MKBETAG('K','L','V','A'),
AV_CODEC_ID_DVD_NAV = MKBETAG('D','N','A','V'),
AV_CODEC_ID_TIMED_ID3 = MKBETAG('T','I','D','3'),
AV_CODEC_ID_BIN_DATA = MKBETAG('D','A','T','A'),
AV_CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like AV_CODEC_ID_NONE) but lavf should attempt to identify it
AV_CODEC_ID_MPEG2TS = 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
* stream (only used by libavformat) */
AV_CODEC_ID_MPEG4SYSTEMS = 0x20001, /**< _FAKE_ codec to indicate a MPEG-4 Systems
* stream (only used by libavformat) */
AV_CODEC_ID_FFMETADATA = 0x21000, ///< Dummy codec for streams containing only metadata information.
#if FF_API_CODEC_ID
#include "old_codec_ids.h"
#endif
};
/**
* This struct describes the properties of a single codec described by an
* AVCodecID.
* @see avcodec_descriptor_get()
*/
typedef struct AVCodecDescriptor {
enum AVCodecID id;
enum AVMediaType type;
/**
* Name of the codec described by this descriptor. It is non-empty and
* unique for each codec descriptor. It should contain alphanumeric
* characters and '_' only.
*/
const char *name;
/**
* A more descriptive name for this codec. May be NULL.
*/
const char *long_name;
/**
* Codec properties, a combination of AV_CODEC_PROP_* flags.
*/
int props;
/**
* MIME type(s) associated with the codec.
* May be NULL; if not, a NULL-terminated array of MIME types.
* The first item is always non-NULL and is the preferred MIME type.
*/
const char *const *mime_types;
} AVCodecDescriptor;
/**
* Codec uses only intra compression.
* Video codecs only.
*/
#define AV_CODEC_PROP_INTRA_ONLY (1 << 0)
/**
* Codec supports lossy compression. Audio and video codecs only.
* @note a codec may support both lossy and lossless
* compression modes
*/
#define AV_CODEC_PROP_LOSSY (1 << 1)
/**
* Codec supports lossless compression. Audio and video codecs only.
*/
#define AV_CODEC_PROP_LOSSLESS (1 << 2)
/**
* Codec supports frame reordering. That is, the coded order (the order in which
* the encoded packets are output by the encoders / stored / input to the
* decoders) may be different from the presentation order of the corresponding
* frames.
*
* For codecs that do not have this property set, PTS and DTS should always be
* equal.
*/
#define AV_CODEC_PROP_REORDER (1 << 3)
/**
* Subtitle codec is bitmap based
* Decoded AVSubtitle data can be read from the AVSubtitleRect->pict field.
*/
#define AV_CODEC_PROP_BITMAP_SUB (1 << 16)
/**
* Subtitle codec is text based.
* Decoded AVSubtitle data can be read from the AVSubtitleRect->ass field.
*/
#define AV_CODEC_PROP_TEXT_SUB (1 << 17)
/**
* @ingroup lavc_decoding
* Required number of additionally allocated bytes at the end of the input bitstream for decoding.
* This is mainly needed because some optimized bitstream readers read
* 32 or 64 bit at once and could read over the end.<br>
* Note: If the first 23 bits of the additional bytes are not 0, then damaged
* MPEG bitstreams could cause overread and segfault.
*/
#define FF_INPUT_BUFFER_PADDING_SIZE 32
/**
* @ingroup lavc_encoding
* minimum encoding buffer size
* Used to avoid some checks during header writing.
*/
#define FF_MIN_BUFFER_SIZE 16384
/**
* @ingroup lavc_encoding
* motion estimation type.
*/
enum Motion_Est_ID {
ME_ZERO = 1, ///< no search, that is use 0,0 vector whenever one is needed
ME_FULL,
ME_LOG,
ME_PHODS,
ME_EPZS, ///< enhanced predictive zonal search
ME_X1, ///< reserved for experiments
ME_HEX, ///< hexagon based search
ME_UMH, ///< uneven multi-hexagon search
ME_TESA, ///< transformed exhaustive search algorithm
ME_ITER=50, ///< iterative search
};
/**
* @ingroup lavc_decoding
*/
enum AVDiscard{
/* We leave some space between them for extensions (drop some
* keyframes for intra-only or drop just some bidir frames). */
AVDISCARD_NONE =-16, ///< discard nothing
AVDISCARD_DEFAULT = 0, ///< discard useless packets like 0 size packets in avi
AVDISCARD_NONREF = 8, ///< discard all non reference
AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames
AVDISCARD_NONINTRA= 24, ///< discard all non intra frames
AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
AVDISCARD_ALL = 48, ///< discard all
};
enum AVAudioServiceType {
AV_AUDIO_SERVICE_TYPE_MAIN = 0,
AV_AUDIO_SERVICE_TYPE_EFFECTS = 1,
AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2,
AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3,
AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4,
AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5,
AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6,
AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7,
AV_AUDIO_SERVICE_TYPE_KARAOKE = 8,
AV_AUDIO_SERVICE_TYPE_NB , ///< Not part of ABI
};
/**
* @ingroup lavc_encoding
*/
typedef struct RcOverride{
int start_frame;
int end_frame;
int qscale; // If this is 0 then quality_factor will be used instead.
float quality_factor;
} RcOverride;
#if FF_API_MAX_BFRAMES
/**
* @deprecated there is no libavcodec-wide limit on the number of B-frames
*/
#define FF_MAX_B_FRAMES 16
#endif
/* encoding support
These flags can be passed in AVCodecContext.flags before initialization.
Note: Not everything is supported yet.
*/
/**
* Allow decoders to produce frames with data planes that are not aligned
* to CPU requirements (e.g. due to cropping).
*/
#define CODEC_FLAG_UNALIGNED 0x0001
#define CODEC_FLAG_QSCALE 0x0002 ///< Use fixed qscale.
#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / advanced prediction for H.263.
#define CODEC_FLAG_OUTPUT_CORRUPT 0x0008 ///< Output even those frames that might be corrupted
#define CODEC_FLAG_QPEL 0x0010 ///< Use qpel MC.
#if FF_API_GMC
/**
* @deprecated use the "gmc" private option of the libxvid encoder
*/
#define CODEC_FLAG_GMC 0x0020 ///< Use GMC.
#endif
#if FF_API_MV0
/**
* @deprecated use the flag "mv0" in the "mpv_flags" private option of the
* mpegvideo encoders
*/
#define CODEC_FLAG_MV0 0x0040
#endif
#if FF_API_INPUT_PRESERVED
/**
* @deprecated passing reference-counted frames to the encoders replaces this
* flag
*/
#define CODEC_FLAG_INPUT_PRESERVED 0x0100
#endif
#define CODEC_FLAG_PASS1 0x0200 ///< Use internal 2pass ratecontrol in first pass mode.
#define CODEC_FLAG_PASS2 0x0400 ///< Use internal 2pass ratecontrol in second pass mode.
#define CODEC_FLAG_GRAY 0x2000 ///< Only decode/encode grayscale.
#if FF_API_EMU_EDGE
/**
* @deprecated edges are not used/required anymore. I.e. this flag is now always
* set.
*/
#define CODEC_FLAG_EMU_EDGE 0x4000
#endif
#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding.
#define CODEC_FLAG_TRUNCATED 0x00010000 /** Input bitstream might be truncated at a random
location instead of only at frame boundaries. */
#if FF_API_NORMALIZE_AQP
/**
* @deprecated use the flag "naq" in the "mpv_flags" private option of the
* mpegvideo encoders
*/
#define CODEC_FLAG_NORMALIZE_AQP 0x00020000
#endif
#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< Use interlaced DCT.
#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< Force low delay.
#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< Place global headers in extradata instead of every keyframe.
#define CODEC_FLAG_BITEXACT 0x00800000 ///< Use only bitexact stuff (except (I)DCT).
/* Fx : Flag for h263+ extra options */
#define CODEC_FLAG_AC_PRED 0x01000000 ///< H.263 advanced intra coding / MPEG-4 AC prediction
#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
#define CODEC_FLAG_CLOSED_GOP 0x80000000
#define CODEC_FLAG2_FAST 0x00000001 ///< Allow non spec compliant speedup tricks.
#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< Skip bitstream encoding.
#define CODEC_FLAG2_LOCAL_HEADER 0x00000008 ///< Place global headers at every keyframe instead of in extradata.
#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 ///< timecode is in drop frame format. DEPRECATED!!!!
#define CODEC_FLAG2_IGNORE_CROP 0x00010000 ///< Discard cropping information from SPS.
#define CODEC_FLAG2_CHUNKS 0x00008000 ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.
#define CODEC_FLAG2_SHOW_ALL 0x00400000 ///< Show all frames before the first keyframe
#define CODEC_FLAG2_EXPORT_MVS 0x10000000 ///< Export motion vectors through frame side data
#define CODEC_FLAG2_SKIP_MANUAL 0x20000000 ///< Do not skip samples and export skip information as frame side data
/* Unsupported options :
* Syntax Arithmetic coding (SAC)
* Reference Picture Selection
* Independent Segment Decoding */
/* /Fx */
/* codec capabilities */
#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< Decoder can use draw_horiz_band callback.
/**
* Codec uses get_buffer() for allocating buffers and supports custom allocators.
* If not set, it might not use get_buffer() at all or use operations that
* assume the buffer was allocated by avcodec_default_get_buffer.
*/
#define CODEC_CAP_DR1 0x0002
#define CODEC_CAP_TRUNCATED 0x0008
#if FF_API_XVMC
/* Codec can export data for HW decoding. This flag indicates that
* the codec would call get_format() with list that might contain HW accelerated
* pixel formats (XvMC, VDPAU, VAAPI, etc). The application can pick any of them
* including raw image format.
* The application can use the passed context to determine bitstream version,
* chroma format, resolution etc.
*/
#define CODEC_CAP_HWACCEL 0x0010
#endif /* FF_API_XVMC */
/**
* Encoder or decoder requires flushing with NULL input at the end in order to
* give the complete and correct output.
*
* NOTE: If this flag is not set, the codec is guaranteed to never be fed with
* with NULL data. The user can still send NULL data to the public encode
* or decode function, but libavcodec will not pass it along to the codec
* unless this flag is set.
*
* Decoders:
* The decoder has a non-zero delay and needs to be fed with avpkt->data=NULL,
* avpkt->size=0 at the end to get the delayed data until the decoder no longer
* returns frames.
*
* Encoders:
* The encoder needs to be fed with NULL data at the end of encoding until the
* encoder no longer returns data.
*
* NOTE: For encoders implementing the AVCodec.encode2() function, setting this
* flag also means that the encoder must set the pts and duration for
* each output packet. If this flag is not set, the pts and duration will
* be determined by libavcodec from the input frame.
*/
#define CODEC_CAP_DELAY 0x0020
/**
* Codec can be fed a final frame with a smaller size.
* This can be used to prevent truncation of the last audio samples.
*/
#define CODEC_CAP_SMALL_LAST_FRAME 0x0040
#if FF_API_CAP_VDPAU
/**
* Codec can export data for HW decoding (VDPAU).
*/
#define CODEC_CAP_HWACCEL_VDPAU 0x0080
#endif
/**
* Codec can output multiple frames per AVPacket
* Normally demuxers return one frame at a time, demuxers which do not do
* are connected to a parser to split what they return into proper frames.
* This flag is reserved to the very rare category of codecs which have a
* bitstream that cannot be split into frames without timeconsuming
* operations like full decoding. Demuxers carring such bitstreams thus
* may return multiple frames in a packet. This has many disadvantages like
* prohibiting stream copy in many cases thus it should only be considered
* as a last resort.
*/
#define CODEC_CAP_SUBFRAMES 0x0100
/**
* Codec is experimental and is thus avoided in favor of non experimental
* encoders
*/
#define CODEC_CAP_EXPERIMENTAL 0x0200
/**
* Codec should fill in channel configuration and samplerate instead of container
*/
#define CODEC_CAP_CHANNEL_CONF 0x0400
#if FF_API_NEG_LINESIZES
/**
* @deprecated no codecs use this capability
*/
#define CODEC_CAP_NEG_LINESIZES 0x0800
#endif
/**
* Codec supports frame-level multithreading.
*/
#define CODEC_CAP_FRAME_THREADS 0x1000
/**
* Codec supports slice-based (or partition-based) multithreading.
*/
#define CODEC_CAP_SLICE_THREADS 0x2000
/**
* Codec supports changed parameters at any point.
*/
#define CODEC_CAP_PARAM_CHANGE 0x4000
/**
* Codec supports avctx->thread_count == 0 (auto).
*/
#define CODEC_CAP_AUTO_THREADS 0x8000
/**
* Audio encoder supports receiving a different number of samples in each call.
*/
#define CODEC_CAP_VARIABLE_FRAME_SIZE 0x10000
/**
* Codec is intra only.
*/
#define CODEC_CAP_INTRA_ONLY 0x40000000
/**
* Codec is lossless.
*/
#define CODEC_CAP_LOSSLESS 0x80000000
#if FF_API_MB_TYPE
//The following defines may change, don't expect compatibility if you use them.
#define MB_TYPE_INTRA4x4 0x0001
#define MB_TYPE_INTRA16x16 0x0002 //FIXME H.264-specific
#define MB_TYPE_INTRA_PCM 0x0004 //FIXME H.264-specific
#define MB_TYPE_16x16 0x0008
#define MB_TYPE_16x8 0x0010
#define MB_TYPE_8x16 0x0020
#define MB_TYPE_8x8 0x0040
#define MB_TYPE_INTERLACED 0x0080
#define MB_TYPE_DIRECT2 0x0100 //FIXME
#define MB_TYPE_ACPRED 0x0200
#define MB_TYPE_GMC 0x0400
#define MB_TYPE_SKIP 0x0800
#define MB_TYPE_P0L0 0x1000
#define MB_TYPE_P1L0 0x2000
#define MB_TYPE_P0L1 0x4000
#define MB_TYPE_P1L1 0x8000
#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
#define MB_TYPE_QUANT 0x00010000
#define MB_TYPE_CBP 0x00020000
//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
#endif
/**
* Pan Scan area.
* This specifies the area which should be displayed.
* Note there may be multiple such areas for one frame.
*/
typedef struct AVPanScan{
/**
* id
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
int id;
/**
* width and height in 1/16 pel
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
int width;
int height;
/**
* position of the top left corner in 1/16 pel for up to 3 fields/frames
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
int16_t position[3][2];
}AVPanScan;
#if FF_API_QSCALE_TYPE
#define FF_QSCALE_TYPE_MPEG1 0
#define FF_QSCALE_TYPE_MPEG2 1
#define FF_QSCALE_TYPE_H264 2
#define FF_QSCALE_TYPE_VP56 3
#endif
#if FF_API_GET_BUFFER
#define FF_BUFFER_TYPE_INTERNAL 1
#define FF_BUFFER_TYPE_USER 2 ///< direct rendering buffers (image is (de)allocated by user)
#define FF_BUFFER_TYPE_SHARED 4 ///< Buffer from somewhere else; don't deallocate image (data/base), all other tables are not shared.
#define FF_BUFFER_TYPE_COPY 8 ///< Just a (modified) copy of some other buffer, don't deallocate anything.
#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore).
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer.
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content.
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update).
#endif
/**
* The decoder will keep a reference to the frame and may reuse it later.
*/
#define AV_GET_BUFFER_FLAG_REF (1 << 0)
/**
* @defgroup lavc_packet AVPacket
*
* Types and functions for working with AVPacket.
* @{
*/
enum AVPacketSideDataType {
AV_PKT_DATA_PALETTE,
AV_PKT_DATA_NEW_EXTRADATA,
/**
* An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows:
* @code
* u32le param_flags
* if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT)
* s32le channel_count
* if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT)
* u64le channel_layout
* if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE)
* s32le sample_rate
* if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS)
* s32le width
* s32le height
* @endcode
*/
AV_PKT_DATA_PARAM_CHANGE,
/**
* An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of
* structures with info about macroblocks relevant to splitting the
* packet into smaller packets on macroblock edges (e.g. as for RFC 2190).
* That is, it does not necessarily contain info about all macroblocks,
* as long as the distance between macroblocks in the info is smaller
* than the target payload size.
* Each MB info structure is 12 bytes, and is laid out as follows:
* @code
* u32le bit offset from the start of the packet
* u8 current quantizer at the start of the macroblock
* u8 GOB number
* u16le macroblock address within the GOB
* u8 horizontal MV predictor
* u8 vertical MV predictor
* u8 horizontal MV predictor for block number 3
* u8 vertical MV predictor for block number 3
* @endcode
*/
AV_PKT_DATA_H263_MB_INFO,
/**
* This side data should be associated with an audio stream and contains
* ReplayGain information in form of the AVReplayGain struct.
*/
AV_PKT_DATA_REPLAYGAIN,
/**
* This side data contains a 3x3 transformation matrix describing an affine
* transformation that needs to be applied to the decoded video frames for
* correct presentation.
*
* See libavutil/display.h for a detailed description of the data.
*/
AV_PKT_DATA_DISPLAYMATRIX,
/**
* This side data should be associated with a video stream and contains
* Stereoscopic 3D information in form of the AVStereo3D struct.
*/
AV_PKT_DATA_STEREO3D,
/**
* This side data should be associated with an audio stream and corresponds
* to enum AVAudioServiceType.
*/
AV_PKT_DATA_AUDIO_SERVICE_TYPE,
/**
* Recommmends skipping the specified number of samples
* @code
* u32le number of samples to skip from start of this packet
* u32le number of samples to skip from end of this packet
* u8 reason for start skip
* u8 reason for end skip (0=padding silence, 1=convergence)
* @endcode
*/
AV_PKT_DATA_SKIP_SAMPLES=70,
/**
* An AV_PKT_DATA_JP_DUALMONO side data packet indicates that
* the packet may contain "dual mono" audio specific to Japanese DTV
* and if it is true, recommends only the selected channel to be used.
* @code
* u8 selected channels (0=mail/left, 1=sub/right, 2=both)
* @endcode
*/
AV_PKT_DATA_JP_DUALMONO,
/**
* A list of zero terminated key/value strings. There is no end marker for
* the list, so it is required to rely on the side data size to stop.
*/
AV_PKT_DATA_STRINGS_METADATA,
/**
* Subtitle event position
* @code
* u32le x1
* u32le y1
* u32le x2
* u32le y2
* @endcode
*/
AV_PKT_DATA_SUBTITLE_POSITION,
/**
* Data found in BlockAdditional element of matroska container. There is
* no end marker for the data, so it is required to rely on the side data
* size to recognize the end. 8 byte id (as found in BlockAddId) followed
* by data.
*/
AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
/**
* The optional first identifier line of a WebVTT cue.
*/
AV_PKT_DATA_WEBVTT_IDENTIFIER,
/**
* The optional settings (rendering instructions) that immediately
* follow the timestamp specifier of a WebVTT cue.
*/
AV_PKT_DATA_WEBVTT_SETTINGS,
/**
* A list of zero terminated key/value strings. There is no end marker for
* the list, so it is required to rely on the side data size to stop. This
* side data includes updated metadata which appeared in the stream.
*/
AV_PKT_DATA_METADATA_UPDATE,
};
typedef struct AVPacketSideData {
uint8_t *data;
int size;
enum AVPacketSideDataType type;
} AVPacketSideData;
/**
* This structure stores compressed data. It is typically exported by demuxers
* and then passed as input to decoders, or received as output from encoders and
* then passed to muxers.
*
* For video, it should typically contain one compressed frame. For audio it may
* contain several compressed frames.
*
* AVPacket is one of the few structs in FFmpeg, whose size is a part of public
* ABI. Thus it may be allocated on stack and no new fields can be added to it
* without libavcodec and libavformat major bump.
*
* The semantics of data ownership depends on the buf or destruct (deprecated)
* fields. If either is set, the packet data is dynamically allocated and is
* valid indefinitely until av_free_packet() is called (which in turn calls
* av_buffer_unref()/the destruct callback to free the data). If neither is set,
* the packet data is typically backed by some static buffer somewhere and is
* only valid for a limited time (e.g. until the next read call when demuxing).
*
* The side data is always allocated with av_malloc() and is freed in
* av_free_packet().
*/
typedef struct AVPacket {
/**
* A reference to the reference-counted buffer where the packet data is
* stored.
* May be NULL, then the packet data is not reference-counted.
*/
AVBufferRef *buf;
/**
* Presentation timestamp in AVStream->time_base units; the time at which
* the decompressed packet will be presented to the user.
* Can be AV_NOPTS_VALUE if it is not stored in the file.
* pts MUST be larger or equal to dts as presentation cannot happen before
* decompression, unless one wants to view hex dumps. Some formats misuse
* the terms dts and pts/cts to mean something different. Such timestamps
* must be converted to true pts/dts before they are stored in AVPacket.
*/
int64_t pts;
/**
* Decompression timestamp in AVStream->time_base units; the time at which
* the packet is decompressed.
* Can be AV_NOPTS_VALUE if it is not stored in the file.
*/
int64_t dts;
uint8_t *data;
int size;
int stream_index;
/**
* A combination of AV_PKT_FLAG values
*/
int flags;
/**
* Additional packet data that can be provided by the container.
* Packet can contain several types of side information.
*/
AVPacketSideData *side_data;
int side_data_elems;
/**
* Duration of this packet in AVStream->time_base units, 0 if unknown.
* Equals next_pts - this_pts in presentation order.
*/
int duration;
#if FF_API_DESTRUCT_PACKET
attribute_deprecated
void (*destruct)(struct AVPacket *);
attribute_deprecated
void *priv;
#endif
int64_t pos; ///< byte position in stream, -1 if unknown
/**
* Time difference in AVStream->time_base units from the pts of this
* packet to the point at which the output from the decoder has converged
* independent from the availability of previous frames. That is, the
* frames are virtually identical no matter if decoding started from
* the very first frame or from this keyframe.
* Is AV_NOPTS_VALUE if unknown.
* This field is not the display duration of the current packet.
* This field has no meaning if the packet does not have AV_PKT_FLAG_KEY
* set.
*
* The purpose of this field is to allow seeking in streams that have no
* keyframes in the conventional sense. It corresponds to the
* recovery point SEI in H.264 and match_time_delta in NUT. It is also
* essential for some types of subtitle streams to ensure that all
* subtitles are correctly displayed after seeking.
*/
int64_t convergence_duration;
} AVPacket;
#define AV_PKT_FLAG_KEY 0x0001 ///< The packet contains a keyframe
#define AV_PKT_FLAG_CORRUPT 0x0002 ///< The packet content is corrupted
enum AVSideDataParamChangeFlags {
AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT = 0x0001,
AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT = 0x0002,
AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE = 0x0004,
AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS = 0x0008,
};
/**
* @}
*/
struct AVCodecInternal;
enum AVFieldOrder {
AV_FIELD_UNKNOWN,
AV_FIELD_PROGRESSIVE,
AV_FIELD_TT, //< Top coded_first, top displayed first
AV_FIELD_BB, //< Bottom coded first, bottom displayed first
AV_FIELD_TB, //< Top coded first, bottom displayed first
AV_FIELD_BT, //< Bottom coded first, top displayed first
};
/**
* main external API structure.
* New fields can be added to the end with minor version bumps.
* Removal, reordering and changes to existing fields require a major
* version bump.
* Please use AVOptions (av_opt* / av_set/get*()) to access these fields from user
* applications.
* sizeof(AVCodecContext) must not be used outside libav*.
*/
typedef struct AVCodecContext {
/**
* information on struct for av_log
* - set by avcodec_alloc_context3
*/
const AVClass *av_class;
int log_level_offset;
enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */
const struct AVCodec *codec;
#if FF_API_CODEC_NAME
/**
* @deprecated this field is not used for anything in libavcodec
*/
attribute_deprecated
char codec_name[32];
#endif
enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
/**
* fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
* This is used to work around some encoder bugs.
* A demuxer should set this to what is stored in the field used to identify the codec.
* If there are multiple such fields in a container then the demuxer should choose the one
* which maximizes the information about the used codec.
* If the codec tag field in a container is larger than 32 bits then the demuxer should
* remap the longer ID to 32 bits with a table or other structure. Alternatively a new
* extra_codec_tag + size could be added but for this a clear advantage must be demonstrated
* first.
* - encoding: Set by user, if not then the default based on codec_id will be used.
* - decoding: Set by user, will be converted to uppercase by libavcodec during init.
*/
unsigned int codec_tag;
#if FF_API_STREAM_CODEC_TAG
/**
* @deprecated this field is unused
*/
attribute_deprecated
unsigned int stream_codec_tag;
#endif
void *priv_data;
/**
* Private context used for internal data.
*
* Unlike priv_data, this is not codec-specific. It is used in general
* libavcodec functions.
*/
struct AVCodecInternal *internal;
/**
* Private data of the user, can be used to carry app specific stuff.
* - encoding: Set by user.
* - decoding: Set by user.
*/
void *opaque;
/**
* the average bitrate
* - encoding: Set by user; unused for constant quantizer encoding.
* - decoding: Set by libavcodec. 0 or some bitrate if this info is available in the stream.
*/
int bit_rate;
/**
* number of bits the bitstream is allowed to diverge from the reference.
* the reference can be CBR (for CBR pass1) or VBR (for pass2)
* - encoding: Set by user; unused for constant quantizer encoding.
* - decoding: unused
*/
int bit_rate_tolerance;
/**
* Global quality for codecs which cannot change it per frame.
* This should be proportional to MPEG-1/2/4 qscale.
* - encoding: Set by user.
* - decoding: unused
*/
int global_quality;
/**
* - encoding: Set by user.
* - decoding: unused
*/
int compression_level;
#define FF_COMPRESSION_DEFAULT -1
/**
* CODEC_FLAG_*.
* - encoding: Set by user.
* - decoding: Set by user.
*/
int flags;
/**
* CODEC_FLAG2_*
* - encoding: Set by user.
* - decoding: Set by user.
*/
int flags2;
/**
* some codecs need / can use extradata like Huffman tables.
* mjpeg: Huffman tables
* rv10: additional flags
* mpeg4: global headers (they can be in the bitstream or here)
* The allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
* than extradata_size to avoid problems if it is read with the bitstream reader.
* The bytewise contents of extradata must not depend on the architecture or CPU endianness.
* - encoding: Set/allocated/freed by libavcodec.
* - decoding: Set/allocated/freed by user.
*/
uint8_t *extradata;
int extradata_size;
/**
* This is the fundamental unit of time (in seconds) in terms
* of which frame timestamps are represented. For fixed-fps content,
* timebase should be 1/framerate and timestamp increments should be
* identically 1.
* This often, but not always is the inverse of the frame rate or field rate
* for video.
* - encoding: MUST be set by user.
* - decoding: the use of this field for decoding is deprecated.
* Use framerate instead.
*/
AVRational time_base;
/**
* For some codecs, the time base is closer to the field rate than the frame rate.
* Most notably, H.264 and MPEG-2 specify time_base as half of frame duration
* if no telecine is used ...
*
* Set to time_base ticks per frame. Default 1, e.g., H.264/MPEG-2 set it to 2.
*/
int ticks_per_frame;
/**
* Codec delay.
*
* Encoding: Number of frames delay there will be from the encoder input to
* the decoder output. (we assume the decoder matches the spec)
* Decoding: Number of frames delay in addition to what a standard decoder
* as specified in the spec would produce.
*
* Video:
* Number of frames the decoded output will be delayed relative to the
* encoded input.
*
* Audio:
* For encoding, this field is unused (see initial_padding).
*
* For decoding, this is the number of samples the decoder needs to
* output before the decoder's output is valid. When seeking, you should
* start decoding this many samples prior to your desired seek point.
*
* - encoding: Set by libavcodec.
* - decoding: Set by libavcodec.
*/
int delay;
/* video only */
/**
* picture width / height.
* - encoding: MUST be set by user.
* - decoding: May be set by the user before opening the decoder if known e.g.
* from the container. Some decoders will require the dimensions
* to be set by the caller. During decoding, the decoder may
* overwrite those values as required.
*/
int width, height;
/**
* Bitstream width / height, may be different from width/height e.g. when
* the decoded frame is cropped before being output or lowres is enabled.
* - encoding: unused
* - decoding: May be set by the user before opening the decoder if known
* e.g. from the container. During decoding, the decoder may
* overwrite those values as required.
*/
int coded_width, coded_height;
#if FF_API_ASPECT_EXTENDED
#define FF_ASPECT_EXTENDED 15
#endif
/**
* the number of pictures in a group of pictures, or 0 for intra_only
* - encoding: Set by user.
* - decoding: unused
*/
int gop_size;
/**
* Pixel format, see AV_PIX_FMT_xxx.
* May be set by the demuxer if known from headers.
* May be overridden by the decoder if it knows better.
* - encoding: Set by user.
* - decoding: Set by user if known, overridden by libavcodec if known
*/
enum AVPixelFormat pix_fmt;
/**
* Motion estimation algorithm used for video coding.
* 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
* 8 (umh), 9 (iter), 10 (tesa) [7, 8, 10 are x264 specific, 9 is snow specific]
* - encoding: MUST be set by user.
* - decoding: unused
*/
int me_method;
/**
* If non NULL, 'draw_horiz_band' is called by the libavcodec
* decoder to draw a horizontal band. It improves cache usage. Not
* all codecs can do that. You must check the codec capabilities
* beforehand.
* When multithreading is used, it may be called from multiple threads
* at the same time; threads might draw different parts of the same AVFrame,
* or multiple AVFrames, and there is no guarantee that slices will be drawn
* in order.
* The function is also used by hardware acceleration APIs.
* It is called at least once during frame decoding to pass
* the data needed for hardware render.
* In that mode instead of pixel data, AVFrame points to
* a structure specific to the acceleration API. The application
* reads the structure and can change some fields to indicate progress
* or mark state.
* - encoding: unused
* - decoding: Set by user.
* @param height the height of the slice
* @param y the y position of the slice
* @param type 1->top field, 2->bottom field, 3->frame
* @param offset offset into the AVFrame.data from which the slice should be read
*/
void (*draw_horiz_band)(struct AVCodecContext *s,
const AVFrame *src, int offset[AV_NUM_DATA_POINTERS],
int y, int type, int height);
/**
* callback to negotiate the pixelFormat
* @param fmt is the list of formats which are supported by the codec,
* it is terminated by -1 as 0 is a valid format, the formats are ordered by quality.
* The first is always the native one.
* @note The callback may be called again immediately if initialization for
* the selected (hardware-accelerated) pixel format failed.
* @warning Behavior is undefined if the callback returns a value not
* in the fmt list of formats.
* @return the chosen format
* - encoding: unused
* - decoding: Set by user, if not set the native format will be chosen.
*/
enum AVPixelFormat (*get_format)(struct AVCodecContext *s, const enum AVPixelFormat * fmt);
/**
* maximum number of B-frames between non-B-frames
* Note: The output will be delayed by max_b_frames+1 relative to the input.
* - encoding: Set by user.
* - decoding: unused
*/
int max_b_frames;
/**
* qscale factor between IP and B-frames
* If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset).
* If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
* - encoding: Set by user.
* - decoding: unused
*/
float b_quant_factor;
/** obsolete FIXME remove */
int rc_strategy;
#define FF_RC_STRATEGY_XVID 1
int b_frame_strategy;
/**
* qscale offset between IP and B-frames
* - encoding: Set by user.
* - decoding: unused
*/
float b_quant_offset;
/**
* Size of the frame reordering buffer in the decoder.
* For MPEG-2 it is 1 IPB or 0 low delay IP.
* - encoding: Set by libavcodec.
* - decoding: Set by libavcodec.
*/
int has_b_frames;
/**
* 0-> h263 quant 1-> mpeg quant
* - encoding: Set by user.
* - decoding: unused
*/
int mpeg_quant;
/**
* qscale factor between P and I-frames
* If > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset).
* If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
* - encoding: Set by user.
* - decoding: unused
*/
float i_quant_factor;
/**
* qscale offset between P and I-frames
* - encoding: Set by user.
* - decoding: unused
*/
float i_quant_offset;
/**
* luminance masking (0-> disabled)
* - encoding: Set by user.
* - decoding: unused
*/
float lumi_masking;
/**
* temporary complexity masking (0-> disabled)
* - encoding: Set by user.
* - decoding: unused
*/
float temporal_cplx_masking;
/**
* spatial complexity masking (0-> disabled)
* - encoding: Set by user.
* - decoding: unused
*/
float spatial_cplx_masking;
/**
* p block masking (0-> disabled)
* - encoding: Set by user.
* - decoding: unused
*/
float p_masking;
/**
* darkness masking (0-> disabled)
* - encoding: Set by user.
* - decoding: unused
*/
float dark_masking;
/**
* slice count
* - encoding: Set by libavcodec.
* - decoding: Set by user (or 0).
*/
int slice_count;
/**
* prediction method (needed for huffyuv)
* - encoding: Set by user.
* - decoding: unused
*/
int prediction_method;
#define FF_PRED_LEFT 0
#define FF_PRED_PLANE 1
#define FF_PRED_MEDIAN 2
/**
* slice offsets in the frame in bytes
* - encoding: Set/allocated by libavcodec.
* - decoding: Set/allocated by user (or NULL).
*/
int *slice_offset;
/**
* sample aspect ratio (0 if unknown)
* That is the width of a pixel divided by the height of the pixel.
* Numerator and denominator must be relatively prime and smaller than 256 for some video standards.
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
AVRational sample_aspect_ratio;
/**
* motion estimation comparison function
* - encoding: Set by user.
* - decoding: unused
*/
int me_cmp;
/**
* subpixel motion estimation comparison function
* - encoding: Set by user.
* - decoding: unused
*/
int me_sub_cmp;
/**
* macroblock comparison function (not supported yet)
* - encoding: Set by user.
* - decoding: unused
*/
int mb_cmp;
/**
* interlaced DCT comparison function
* - encoding: Set by user.
* - decoding: unused
*/
int ildct_cmp;
#define FF_CMP_SAD 0
#define FF_CMP_SSE 1
#define FF_CMP_SATD 2
#define FF_CMP_DCT 3
#define FF_CMP_PSNR 4
#define FF_CMP_BIT 5
#define FF_CMP_RD 6
#define FF_CMP_ZERO 7
#define FF_CMP_VSAD 8
#define FF_CMP_VSSE 9
#define FF_CMP_NSSE 10
#define FF_CMP_W53 11
#define FF_CMP_W97 12
#define FF_CMP_DCTMAX 13
#define FF_CMP_DCT264 14
#define FF_CMP_CHROMA 256
/**
* ME diamond size & shape
* - encoding: Set by user.
* - decoding: unused
*/
int dia_size;
/**
* amount of previous MV predictors (2a+1 x 2a+1 square)
* - encoding: Set by user.
* - decoding: unused
*/
int last_predictor_count;
/**
* prepass for motion estimation
* - encoding: Set by user.
* - decoding: unused
*/
int pre_me;
/**
* motion estimation prepass comparison function
* - encoding: Set by user.
* - decoding: unused
*/
int me_pre_cmp;
/**
* ME prepass diamond size & shape
* - encoding: Set by user.
* - decoding: unused
*/
int pre_dia_size;
/**
* subpel ME quality
* - encoding: Set by user.
* - decoding: unused
*/
int me_subpel_quality;
#if FF_API_AFD
/**
* DTG active format information (additional aspect ratio
* information only used in DVB MPEG-2 transport streams)
* 0 if not set.
*
* - encoding: unused
* - decoding: Set by decoder.
* @deprecated Deprecated in favor of AVSideData
*/
attribute_deprecated int dtg_active_format;
#define FF_DTG_AFD_SAME 8
#define FF_DTG_AFD_4_3 9
#define FF_DTG_AFD_16_9 10
#define FF_DTG_AFD_14_9 11
#define FF_DTG_AFD_4_3_SP_14_9 13
#define FF_DTG_AFD_16_9_SP_14_9 14
#define FF_DTG_AFD_SP_4_3 15
#endif /* FF_API_AFD */
/**
* maximum motion estimation search range in subpel units
* If 0 then no limit.
*
* - encoding: Set by user.
* - decoding: unused
*/
int me_range;
/**
* intra quantizer bias
* - encoding: Set by user.
* - decoding: unused
*/
int intra_quant_bias;
#define FF_DEFAULT_QUANT_BIAS 999999
/**
* inter quantizer bias
* - encoding: Set by user.
* - decoding: unused
*/
int inter_quant_bias;
/**
* slice flags
* - encoding: unused
* - decoding: Set by user.
*/
int slice_flags;
#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
#if FF_API_XVMC
/**
* XVideo Motion Acceleration
* - encoding: forbidden
* - decoding: set by decoder
* @deprecated XvMC doesn't need it anymore.
*/
attribute_deprecated int xvmc_acceleration;
#endif /* FF_API_XVMC */
/**
* macroblock decision mode
* - encoding: Set by user.
* - decoding: unused
*/
int mb_decision;
#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
#define FF_MB_DECISION_RD 2 ///< rate distortion
/**
* custom intra quantization matrix
* - encoding: Set by user, can be NULL.
* - decoding: Set by libavcodec.
*/
uint16_t *intra_matrix;
/**
* custom inter quantization matrix
* - encoding: Set by user, can be NULL.
* - decoding: Set by libavcodec.
*/
uint16_t *inter_matrix;
/**
* scene change detection threshold
* 0 is default, larger means fewer detected scene changes.
* - encoding: Set by user.
* - decoding: unused
*/
int scenechange_threshold;
/**
* noise reduction strength
* - encoding: Set by user.
* - decoding: unused
*/
int noise_reduction;
#if FF_API_MPV_OPT
/**
* @deprecated this field is unused
*/
attribute_deprecated
int me_threshold;
/**
* @deprecated this field is unused
*/
attribute_deprecated
int mb_threshold;
#endif
/**
* precision of the intra DC coefficient - 8
* - encoding: Set by user.
* - decoding: unused
*/
int intra_dc_precision;
/**
* Number of macroblock rows at the top which are skipped.
* - encoding: unused
* - decoding: Set by user.
*/
int skip_top;
/**
* Number of macroblock rows at the bottom which are skipped.
* - encoding: unused
* - decoding: Set by user.
*/
int skip_bottom;
#if FF_API_MPV_OPT
/**
* @deprecated use encoder private options instead
*/
attribute_deprecated
float border_masking;
#endif
/**
* minimum MB lagrange multipler
* - encoding: Set by user.
* - decoding: unused
*/
int mb_lmin;
/**
* maximum MB lagrange multipler
* - encoding: Set by user.
* - decoding: unused
*/
int mb_lmax;
/**
*
* - encoding: Set by user.
* - decoding: unused
*/
int me_penalty_compensation;
/**
*
* - encoding: Set by user.
* - decoding: unused
*/
int bidir_refine;
/**
*
* - encoding: Set by user.
* - decoding: unused
*/
int brd_scale;
/**
* minimum GOP size
* - encoding: Set by user.
* - decoding: unused
*/
int keyint_min;
/**
* number of reference frames
* - encoding: Set by user.
* - decoding: Set by lavc.
*/
int refs;
/**
* chroma qp offset from luma
* - encoding: Set by user.
* - decoding: unused
*/
int chromaoffset;
#if FF_API_UNUSED_MEMBERS
/**
* Multiplied by qscale for each frame and added to scene_change_score.
* - encoding: Set by user.
* - decoding: unused
*/
attribute_deprecated int scenechange_factor;
#endif
/**
*
* Note: Value depends upon the compare function used for fullpel ME.
* - encoding: Set by user.
* - decoding: unused
*/
int mv0_threshold;
/**
* Adjust sensitivity of b_frame_strategy 1.
* - encoding: Set by user.
* - decoding: unused
*/
int b_sensitivity;
/**
* Chromaticity coordinates of the source primaries.
* - encoding: Set by user
* - decoding: Set by libavcodec
*/
enum AVColorPrimaries color_primaries;
/**
* Color Transfer Characteristic.
* - encoding: Set by user
* - decoding: Set by libavcodec
*/
enum AVColorTransferCharacteristic color_trc;
/**
* YUV colorspace type.
* - encoding: Set by user
* - decoding: Set by libavcodec
*/
enum AVColorSpace colorspace;
/**
* MPEG vs JPEG YUV range.
* - encoding: Set by user
* - decoding: Set by libavcodec
*/
enum AVColorRange color_range;
/**
* This defines the location of chroma samples.
* - encoding: Set by user
* - decoding: Set by libavcodec
*/
enum AVChromaLocation chroma_sample_location;
/**
* Number of slices.
* Indicates number of picture subdivisions. Used for parallelized
* decoding.
* - encoding: Set by user
* - decoding: unused
*/
int slices;
/** Field order
* - encoding: set by libavcodec
* - decoding: Set by user.
*/
enum AVFieldOrder field_order;
/* audio only */
int sample_rate; ///< samples per second
int channels; ///< number of audio channels
/**
* audio sample format
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
enum AVSampleFormat sample_fmt; ///< sample format
/* The following data should not be initialized. */
/**
* Number of samples per channel in an audio frame.
*
* - encoding: set by libavcodec in avcodec_open2(). Each submitted frame
* except the last must contain exactly frame_size samples per channel.
* May be 0 when the codec has CODEC_CAP_VARIABLE_FRAME_SIZE set, then the
* frame size is not restricted.
* - decoding: may be set by some decoders to indicate constant frame size
*/
int frame_size;
/**
* Frame counter, set by libavcodec.
*
* - decoding: total number of frames returned from the decoder so far.
* - encoding: total number of frames passed to the encoder so far.
*
* @note the counter is not incremented if encoding/decoding resulted in
* an error.
*/
int frame_number;
/**
* number of bytes per packet if constant and known or 0
* Used by some WAV based audio codecs.
*/
int block_align;
/**
* Audio cutoff bandwidth (0 means "automatic")
* - encoding: Set by user.
* - decoding: unused
*/
int cutoff;
#if FF_API_REQUEST_CHANNELS
/**
* Decoder should decode to this many channels if it can (0 for default)
* - encoding: unused
* - decoding: Set by user.
* @deprecated Deprecated in favor of request_channel_layout.
*/
attribute_deprecated int request_channels;
#endif
/**
* Audio channel layout.
* - encoding: set by user.
* - decoding: set by user, may be overwritten by libavcodec.
*/
uint64_t channel_layout;
/**
* Request decoder to use this channel layout if it can (0 for default)
* - encoding: unused
* - decoding: Set by user.
*/
uint64_t request_channel_layout;
/**
* Type of service that the audio stream conveys.
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
enum AVAudioServiceType audio_service_type;
/**
* desired sample format
* - encoding: Not used.
* - decoding: Set by user.
* Decoder will decode to this format if it can.
*/
enum AVSampleFormat request_sample_fmt;
#if FF_API_GET_BUFFER
/**
* Called at the beginning of each frame to get a buffer for it.
*
* The function will set AVFrame.data[], AVFrame.linesize[].
* AVFrame.extended_data[] must also be set, but it should be the same as
* AVFrame.data[] except for planar audio with more channels than can fit
* in AVFrame.data[]. In that case, AVFrame.data[] shall still contain as
* many data pointers as it can hold.
*
* if CODEC_CAP_DR1 is not set then get_buffer() must call
* avcodec_default_get_buffer() instead of providing buffers allocated by
* some other means.
*
* AVFrame.data[] should be 32- or 16-byte-aligned unless the CPU doesn't
* need it. avcodec_default_get_buffer() aligns the output buffer properly,
* but if get_buffer() is overridden then alignment considerations should
* be taken into account.
*
* @see avcodec_default_get_buffer()
*
* Video:
*
* If pic.reference is set then the frame will be read later by libavcodec.
* avcodec_align_dimensions2() should be used to find the required width and
* height, as they normally need to be rounded up to the next multiple of 16.
*
* If frame multithreading is used and thread_safe_callbacks is set,
* it may be called from a different thread, but not from more than one at
* once. Does not need to be reentrant.
*
* @see release_buffer(), reget_buffer()
* @see avcodec_align_dimensions2()
*
* Audio:
*
* Decoders request a buffer of a particular size by setting
* AVFrame.nb_samples prior to calling get_buffer(). The decoder may,
* however, utilize only part of the buffer by setting AVFrame.nb_samples
* to a smaller value in the output frame.
*
* Decoders cannot use the buffer after returning from
* avcodec_decode_audio4(), so they will not call release_buffer(), as it
* is assumed to be released immediately upon return. In some rare cases,
* a decoder may need to call get_buffer() more than once in a single
* call to avcodec_decode_audio4(). In that case, when get_buffer() is
* called again after it has already been called once, the previously
* acquired buffer is assumed to be released at that time and may not be
* reused by the decoder.
*
* As a convenience, av_samples_get_buffer_size() and
* av_samples_fill_arrays() in libavutil may be used by custom get_buffer()
* functions to find the required data size and to fill data pointers and
* linesize. In AVFrame.linesize, only linesize[0] may be set for audio
* since all planes must be the same size.
*
* @see av_samples_get_buffer_size(), av_samples_fill_arrays()
*
* - encoding: unused
* - decoding: Set by libavcodec, user can override.
*
* @deprecated use get_buffer2()
*/
attribute_deprecated
int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
/**
* Called to release buffers which were allocated with get_buffer.
* A released buffer can be reused in get_buffer().
* pic.data[*] must be set to NULL.
* May be called from a different thread if frame multithreading is used,
* but not by more than one thread at once, so does not need to be reentrant.
* - encoding: unused
* - decoding: Set by libavcodec, user can override.
*
* @deprecated custom freeing callbacks should be set from get_buffer2()
*/
attribute_deprecated
void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
/**
* Called at the beginning of a frame to get cr buffer for it.
* Buffer type (size, hints) must be the same. libavcodec won't check it.
* libavcodec will pass previous buffer in pic, function should return
* same buffer or new buffer with old frame "painted" into it.
* If pic.data[0] == NULL must behave like get_buffer().
* if CODEC_CAP_DR1 is not set then reget_buffer() must call
* avcodec_default_reget_buffer() instead of providing buffers allocated by
* some other means.
* - encoding: unused
* - decoding: Set by libavcodec, user can override.
*/
attribute_deprecated
int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
#endif
/**
* This callback is called at the beginning of each frame to get data
* buffer(s) for it. There may be one contiguous buffer for all the data or
* there may be a buffer per each data plane or anything in between. What
* this means is, you may set however many entries in buf[] you feel necessary.
* Each buffer must be reference-counted using the AVBuffer API (see description
* of buf[] below).
*
* The following fields will be set in the frame before this callback is
* called:
* - format
* - width, height (video only)
* - sample_rate, channel_layout, nb_samples (audio only)
* Their values may differ from the corresponding values in
* AVCodecContext. This callback must use the frame values, not the codec
* context values, to calculate the required buffer size.
*
* This callback must fill the following fields in the frame:
* - data[]
* - linesize[]
* - extended_data:
* * if the data is planar audio with more than 8 channels, then this
* callback must allocate and fill extended_data to contain all pointers
* to all data planes. data[] must hold as many pointers as it can.
* extended_data must be allocated with av_malloc() and will be freed in
* av_frame_unref().
* * otherwise exended_data must point to data
* - buf[] must contain one or more pointers to AVBufferRef structures. Each of
* the frame's data and extended_data pointers must be contained in these. That
* is, one AVBufferRef for each allocated chunk of memory, not necessarily one
* AVBufferRef per data[] entry. See: av_buffer_create(), av_buffer_alloc(),
* and av_buffer_ref().
* - extended_buf and nb_extended_buf must be allocated with av_malloc() by
* this callback and filled with the extra buffers if there are more
* buffers than buf[] can hold. extended_buf will be freed in
* av_frame_unref().
*
* If CODEC_CAP_DR1 is not set then get_buffer2() must call
* avcodec_default_get_buffer2() instead of providing buffers allocated by
* some other means.
*
* Each data plane must be aligned to the maximum required by the target
* CPU.
*
* @see avcodec_default_get_buffer2()
*
* Video:
*
* If AV_GET_BUFFER_FLAG_REF is set in flags then the frame may be reused
* (read and/or written to if it is writable) later by libavcodec.
*
* avcodec_align_dimensions2() should be used to find the required width and
* height, as they normally need to be rounded up to the next multiple of 16.
*
* Some decoders do not support linesizes changing between frames.
*
* If frame multithreading is used and thread_safe_callbacks is set,
* this callback may be called from a different thread, but not from more
* than one at once. Does not need to be reentrant.
*
* @see avcodec_align_dimensions2()
*
* Audio:
*
* Decoders request a buffer of a particular size by setting
* AVFrame.nb_samples prior to calling get_buffer2(). The decoder may,
* however, utilize only part of the buffer by setting AVFrame.nb_samples
* to a smaller value in the output frame.
*
* As a convenience, av_samples_get_buffer_size() and
* av_samples_fill_arrays() in libavutil may be used by custom get_buffer2()
* functions to find the required data size and to fill data pointers and
* linesize. In AVFrame.linesize, only linesize[0] may be set for audio
* since all planes must be the same size.
*
* @see av_samples_get_buffer_size(), av_samples_fill_arrays()
*
* - encoding: unused
* - decoding: Set by libavcodec, user can override.
*/
int (*get_buffer2)(struct AVCodecContext *s, AVFrame *frame, int flags);
/**
* If non-zero, the decoded audio and video frames returned from
* avcodec_decode_video2() and avcodec_decode_audio4() are reference-counted
* and are valid indefinitely. The caller must free them with
* av_frame_unref() when they are not needed anymore.
* Otherwise, the decoded frames must not be freed by the caller and are
* only valid until the next decode call.
*
* - encoding: unused
* - decoding: set by the caller before avcodec_open2().
*/
int refcounted_frames;
/* - encoding parameters */
float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
/**
* minimum quantizer
* - encoding: Set by user.
* - decoding: unused
*/
int qmin;
/**
* maximum quantizer
* - encoding: Set by user.
* - decoding: unused
*/
int qmax;
/**
* maximum quantizer difference between frames
* - encoding: Set by user.
* - decoding: unused
*/
int max_qdiff;
#if FF_API_MPV_OPT
/**
* @deprecated use encoder private options instead
*/
attribute_deprecated
float rc_qsquish;
attribute_deprecated
float rc_qmod_amp;
attribute_deprecated
int rc_qmod_freq;
#endif
/**
* decoder bitstream buffer size
* - encoding: Set by user.
* - decoding: unused
*/
int rc_buffer_size;
/**
* ratecontrol override, see RcOverride
* - encoding: Allocated/set/freed by user.
* - decoding: unused
*/
int rc_override_count;
RcOverride *rc_override;
#if FF_API_MPV_OPT
/**
* @deprecated use encoder private options instead
*/
attribute_deprecated
const char *rc_eq;
#endif
/**
* maximum bitrate
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
int rc_max_rate;
/**
* minimum bitrate
* - encoding: Set by user.
* - decoding: unused
*/
int rc_min_rate;
#if FF_API_MPV_OPT
/**
* @deprecated use encoder private options instead
*/
attribute_deprecated
float rc_buffer_aggressivity;
attribute_deprecated
float rc_initial_cplx;
#endif
/**
* Ratecontrol attempt to use, at maximum, <value> of what can be used without an underflow.
* - encoding: Set by user.
* - decoding: unused.
*/
float rc_max_available_vbv_use;
/**
* Ratecontrol attempt to use, at least, <value> times the amount needed to prevent a vbv overflow.
* - encoding: Set by user.
* - decoding: unused.
*/
float rc_min_vbv_overflow_use;
/**
* Number of bits which should be loaded into the rc buffer before decoding starts.
* - encoding: Set by user.
* - decoding: unused
*/
int rc_initial_buffer_occupancy;
#define FF_CODER_TYPE_VLC 0
#define FF_CODER_TYPE_AC 1
#define FF_CODER_TYPE_RAW 2
#define FF_CODER_TYPE_RLE 3
#if FF_API_UNUSED_MEMBERS
#define FF_CODER_TYPE_DEFLATE 4
#endif /* FF_API_UNUSED_MEMBERS */
/**
* coder type
* - encoding: Set by user.
* - decoding: unused
*/
int coder_type;
/**
* context model
* - encoding: Set by user.
* - decoding: unused
*/
int context_model;
#if FF_API_MPV_OPT
/**
* @deprecated use encoder private options instead
*/
attribute_deprecated
int lmin;
/**
* @deprecated use encoder private options instead
*/
attribute_deprecated
int lmax;
#endif
/**
* frame skip threshold
* - encoding: Set by user.
* - decoding: unused
*/
int frame_skip_threshold;
/**
* frame skip factor
* - encoding: Set by user.
* - decoding: unused
*/
int frame_skip_factor;
/**
* frame skip exponent
* - encoding: Set by user.
* - decoding: unused
*/
int frame_skip_exp;
/**
* frame skip comparison function
* - encoding: Set by user.
* - decoding: unused
*/
int frame_skip_cmp;
/**
* trellis RD quantization
* - encoding: Set by user.
* - decoding: unused
*/
int trellis;
/**
* - encoding: Set by user.
* - decoding: unused
*/
int min_prediction_order;
/**
* - encoding: Set by user.
* - decoding: unused
*/
int max_prediction_order;
/**
* GOP timecode frame start number
* - encoding: Set by user, in non drop frame format
* - decoding: Set by libavcodec (timecode in the 25 bits format, -1 if unset)
*/
int64_t timecode_frame_start;
/* The RTP callback: This function is called */
/* every time the encoder has a packet to send. */
/* It depends on the encoder if the data starts */
/* with a Start Code (it should). H.263 does. */
/* mb_nb contains the number of macroblocks */
/* encoded in the RTP payload. */
void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
int rtp_payload_size; /* The size of the RTP payload: the coder will */
/* do its best to deliver a chunk with size */
/* below rtp_payload_size, the chunk will start */
/* with a start code on some codecs like H.263. */
/* This doesn't take account of any particular */
/* headers inside the transmitted RTP payload. */
/* statistics, used for 2-pass encoding */
int mv_bits;
int header_bits;
int i_tex_bits;
int p_tex_bits;
int i_count;
int p_count;
int skip_count;
int misc_bits;
/**
* number of bits used for the previously encoded frame
* - encoding: Set by libavcodec.
* - decoding: unused
*/
int frame_bits;
/**
* pass1 encoding statistics output buffer
* - encoding: Set by libavcodec.
* - decoding: unused
*/
char *stats_out;
/**
* pass2 encoding statistics input buffer
* Concatenated stuff from stats_out of pass1 should be placed here.
* - encoding: Allocated/set/freed by user.
* - decoding: unused
*/
char *stats_in;
/**
* Work around bugs in encoders which sometimes cannot be detected automatically.
* - encoding: Set by user
* - decoding: Set by user
*/
int workaround_bugs;
#define FF_BUG_AUTODETECT 1 ///< autodetection
#if FF_API_OLD_MSMPEG4
#define FF_BUG_OLD_MSMPEG4 2
#endif
#define FF_BUG_XVID_ILACE 4
#define FF_BUG_UMP4 8
#define FF_BUG_NO_PADDING 16
#define FF_BUG_AMV 32
#if FF_API_AC_VLC
#define FF_BUG_AC_VLC 0 ///< Will be removed, libavcodec can now handle these non-compliant files by default.
#endif
#define FF_BUG_QPEL_CHROMA 64
#define FF_BUG_STD_QPEL 128
#define FF_BUG_QPEL_CHROMA2 256
#define FF_BUG_DIRECT_BLOCKSIZE 512
#define FF_BUG_EDGE 1024
#define FF_BUG_HPEL_CHROMA 2048
#define FF_BUG_DC_CLIP 4096
#define FF_BUG_MS 8192 ///< Work around various bugs in Microsoft's broken decoders.
#define FF_BUG_TRUNCATED 16384
/**
* strictly follow the standard (MPEG4, ...).
* - encoding: Set by user.
* - decoding: Set by user.
* Setting this to STRICT or higher means the encoder and decoder will
* generally do stupid things, whereas setting it to unofficial or lower
* will mean the encoder might produce output that is not supported by all
* spec-compliant decoders. Decoders don't differentiate between normal,
* unofficial and experimental (that is, they always try to decode things
* when they can) unless they are explicitly asked to behave stupidly
* (=strictly conform to the specs)
*/
int strict_std_compliance;
#define FF_COMPLIANCE_VERY_STRICT 2 ///< Strictly conform to an older more strict version of the spec or reference software.
#define FF_COMPLIANCE_STRICT 1 ///< Strictly conform to all the things in the spec no matter what consequences.
#define FF_COMPLIANCE_NORMAL 0
#define FF_COMPLIANCE_UNOFFICIAL -1 ///< Allow unofficial extensions
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things.
/**
* error concealment flags
* - encoding: unused
* - decoding: Set by user.
*/
int error_concealment;
#define FF_EC_GUESS_MVS 1
#define FF_EC_DEBLOCK 2
#define FF_EC_FAVOR_INTER 256
/**
* debug
* - encoding: Set by user.
* - decoding: Set by user.
*/
int debug;
#define FF_DEBUG_PICT_INFO 1
#define FF_DEBUG_RC 2
#define FF_DEBUG_BITSTREAM 4
#define FF_DEBUG_MB_TYPE 8
#define FF_DEBUG_QP 16
#if FF_API_DEBUG_MV
/**
* @deprecated this option does nothing
*/
#define FF_DEBUG_MV 32
#endif
#define FF_DEBUG_DCT_COEFF 0x00000040
#define FF_DEBUG_SKIP 0x00000080
#define FF_DEBUG_STARTCODE 0x00000100
#if FF_API_UNUSED_MEMBERS
#define FF_DEBUG_PTS 0x00000200
#endif /* FF_API_UNUSED_MEMBERS */
#define FF_DEBUG_ER 0x00000400
#define FF_DEBUG_MMCO 0x00000800
#define FF_DEBUG_BUGS 0x00001000
#if FF_API_DEBUG_MV
#define FF_DEBUG_VIS_QP 0x00002000 ///< only access through AVOptions from outside libavcodec
#define FF_DEBUG_VIS_MB_TYPE 0x00004000 ///< only access through AVOptions from outside libavcodec
#endif
#define FF_DEBUG_BUFFERS 0x00008000
#define FF_DEBUG_THREADS 0x00010000
#define FF_DEBUG_NOMC 0x01000000
#if FF_API_DEBUG_MV
/**
* debug
* Code outside libavcodec should access this field using AVOptions
* - encoding: Set by user.
* - decoding: Set by user.
*/
int debug_mv;
#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
#endif
/**
* Error recognition; may misdetect some more or less valid parts as errors.
* - encoding: unused
* - decoding: Set by user.
*/
int err_recognition;
/**
* Verify checksums embedded in the bitstream (could be of either encoded or
* decoded data, depending on the codec) and print an error message on mismatch.
* If AV_EF_EXPLODE is also set, a mismatching checksum will result in the
* decoder returning an error.
*/
#define AV_EF_CRCCHECK (1<<0)
#define AV_EF_BITSTREAM (1<<1) ///< detect bitstream specification deviations
#define AV_EF_BUFFER (1<<2) ///< detect improper bitstream length
#define AV_EF_EXPLODE (1<<3) ///< abort decoding on minor error detection
#define AV_EF_IGNORE_ERR (1<<15) ///< ignore errors and continue
#define AV_EF_CAREFUL (1<<16) ///< consider things that violate the spec, are fast to calculate and have not been seen in the wild as errors
#define AV_EF_COMPLIANT (1<<17) ///< consider all spec non compliances as errors
#define AV_EF_AGGRESSIVE (1<<18) ///< consider things that a sane encoder should not do as an error
/**
* opaque 64bit number (generally a PTS) that will be reordered and
* output in AVFrame.reordered_opaque
* - encoding: unused
* - decoding: Set by user.
*/
int64_t reordered_opaque;
/**
* Hardware accelerator in use
* - encoding: unused.
* - decoding: Set by libavcodec
*/
struct AVHWAccel *hwaccel;
/**
* Hardware accelerator context.
* For some hardware accelerators, a global context needs to be
* provided by the user. In that case, this holds display-dependent
* data FFmpeg cannot instantiate itself. Please refer to the
* FFmpeg HW accelerator documentation to know how to fill this
* is. e.g. for VA API, this is a struct vaapi_context.
* - encoding: unused
* - decoding: Set by user
*/
void *hwaccel_context;
/**
* error
* - encoding: Set by libavcodec if flags&CODEC_FLAG_PSNR.
* - decoding: unused
*/
uint64_t error[AV_NUM_DATA_POINTERS];
/**
* DCT algorithm, see FF_DCT_* below
* - encoding: Set by user.
* - decoding: unused
*/
int dct_algo;
#define FF_DCT_AUTO 0
#define FF_DCT_FASTINT 1
#if FF_API_UNUSED_MEMBERS
#define FF_DCT_INT 2
#endif /* FF_API_UNUSED_MEMBERS */
#define FF_DCT_MMX 3
#define FF_DCT_ALTIVEC 5
#define FF_DCT_FAAN 6
/**
* IDCT algorithm, see FF_IDCT_* below.
* - encoding: Set by user.
* - decoding: Set by user.
*/
int idct_algo;
#define FF_IDCT_AUTO 0
#define FF_IDCT_INT 1
#define FF_IDCT_SIMPLE 2
#define FF_IDCT_SIMPLEMMX 3
#define FF_IDCT_ARM 7
#define FF_IDCT_ALTIVEC 8
#if FF_API_ARCH_SH4
#define FF_IDCT_SH4 9
#endif
#define FF_IDCT_SIMPLEARM 10
#if FF_API_UNUSED_MEMBERS
#define FF_IDCT_IPP 13
#endif /* FF_API_UNUSED_MEMBERS */
#define FF_IDCT_XVID 14
#if FF_API_IDCT_XVIDMMX
#define FF_IDCT_XVIDMMX 14
#endif /* FF_API_IDCT_XVIDMMX */
#define FF_IDCT_SIMPLEARMV5TE 16
#define FF_IDCT_SIMPLEARMV6 17
#if FF_API_ARCH_SPARC
#define FF_IDCT_SIMPLEVIS 18
#endif
#define FF_IDCT_FAAN 20
#define FF_IDCT_SIMPLENEON 22
#if FF_API_ARCH_ALPHA
#define FF_IDCT_SIMPLEALPHA 23
#endif
#define FF_IDCT_SIMPLEAUTO 128
/**
* bits per sample/pixel from the demuxer (needed for huffyuv).
* - encoding: Set by libavcodec.
* - decoding: Set by user.
*/
int bits_per_coded_sample;
/**
* Bits per sample/pixel of internal libavcodec pixel/sample format.
* - encoding: set by user.
* - decoding: set by libavcodec.
*/
int bits_per_raw_sample;
#if FF_API_LOWRES
/**
* low resolution decoding, 1-> 1/2 size, 2->1/4 size
* - encoding: unused
* - decoding: Set by user.
* Code outside libavcodec should access this field using:
* av_codec_{get,set}_lowres(avctx)
*/
int lowres;
#endif
/**
* the picture in the bitstream
* - encoding: Set by libavcodec.
* - decoding: unused
*/
AVFrame *coded_frame;
/**
* thread count
* is used to decide how many independent tasks should be passed to execute()
* - encoding: Set by user.
* - decoding: Set by user.
*/
int thread_count;
/**
* Which multithreading methods to use.
* Use of FF_THREAD_FRAME will increase decoding delay by one frame per thread,
* so clients which cannot provide future frames should not use it.
*
* - encoding: Set by user, otherwise the default is used.
* - decoding: Set by user, otherwise the default is used.
*/
int thread_type;
#define FF_THREAD_FRAME 1 ///< Decode more than one frame at once
#define FF_THREAD_SLICE 2 ///< Decode more than one part of a single frame at once
/**
* Which multithreading methods are in use by the codec.
* - encoding: Set by libavcodec.
* - decoding: Set by libavcodec.
*/
int active_thread_type;
/**
* Set by the client if its custom get_buffer() callback can be called
* synchronously from another thread, which allows faster multithreaded decoding.
* draw_horiz_band() will be called from other threads regardless of this setting.
* Ignored if the default get_buffer() is used.
* - encoding: Set by user.
* - decoding: Set by user.
*/
int thread_safe_callbacks;
/**
* The codec may call this to execute several independent things.
* It will return only after finishing all tasks.
* The user may replace this with some multithreaded implementation,
* the default implementation will execute the parts serially.
* @param count the number of things to execute
* - encoding: Set by libavcodec, user can override.
* - decoding: Set by libavcodec, user can override.
*/
int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size);
/**
* The codec may call this to execute several independent things.
* It will return only after finishing all tasks.
* The user may replace this with some multithreaded implementation,
* the default implementation will execute the parts serially.
* Also see avcodec_thread_init and e.g. the --enable-pthread configure option.
* @param c context passed also to func
* @param count the number of things to execute
* @param arg2 argument passed unchanged to func
* @param ret return values of executed functions, must have space for "count" values. May be NULL.
* @param func function that will be called count times, with jobnr from 0 to count-1.
* threadnr will be in the range 0 to c->thread_count-1 < MAX_THREADS and so that no
* two instances of func executing at the same time will have the same threadnr.
* @return always 0 currently, but code should handle a future improvement where when any call to func
* returns < 0 no further calls to func may be done and < 0 is returned.
* - encoding: Set by libavcodec, user can override.
* - decoding: Set by libavcodec, user can override.
*/
int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count);
#if FF_API_THREAD_OPAQUE
/**
* @deprecated this field should not be used from outside of lavc
*/
attribute_deprecated
void *thread_opaque;
#endif
/**
* noise vs. sse weight for the nsse comparison function
* - encoding: Set by user.
* - decoding: unused
*/
int nsse_weight;
/**
* profile
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
int profile;
#define FF_PROFILE_UNKNOWN -99
#define FF_PROFILE_RESERVED -100
#define FF_PROFILE_AAC_MAIN 0
#define FF_PROFILE_AAC_LOW 1
#define FF_PROFILE_AAC_SSR 2
#define FF_PROFILE_AAC_LTP 3
#define FF_PROFILE_AAC_HE 4
#define FF_PROFILE_AAC_HE_V2 28
#define FF_PROFILE_AAC_LD 22
#define FF_PROFILE_AAC_ELD 38
#define FF_PROFILE_MPEG2_AAC_LOW 128
#define FF_PROFILE_MPEG2_AAC_HE 131
#define FF_PROFILE_DTS 20
#define FF_PROFILE_DTS_ES 30
#define FF_PROFILE_DTS_96_24 40
#define FF_PROFILE_DTS_HD_HRA 50
#define FF_PROFILE_DTS_HD_MA 60
#define FF_PROFILE_MPEG2_422 0
#define FF_PROFILE_MPEG2_HIGH 1
#define FF_PROFILE_MPEG2_SS 2
#define FF_PROFILE_MPEG2_SNR_SCALABLE 3
#define FF_PROFILE_MPEG2_MAIN 4
#define FF_PROFILE_MPEG2_SIMPLE 5
#define FF_PROFILE_H264_CONSTRAINED (1<<9) // 8+1; constraint_set1_flag
#define FF_PROFILE_H264_INTRA (1<<11) // 8+3; constraint_set3_flag
#define FF_PROFILE_H264_BASELINE 66
#define FF_PROFILE_H264_CONSTRAINED_BASELINE (66|FF_PROFILE_H264_CONSTRAINED)
#define FF_PROFILE_H264_MAIN 77
#define FF_PROFILE_H264_EXTENDED 88
#define FF_PROFILE_H264_HIGH 100
#define FF_PROFILE_H264_HIGH_10 110
#define FF_PROFILE_H264_HIGH_10_INTRA (110|FF_PROFILE_H264_INTRA)
#define FF_PROFILE_H264_HIGH_422 122
#define FF_PROFILE_H264_HIGH_422_INTRA (122|FF_PROFILE_H264_INTRA)
#define FF_PROFILE_H264_HIGH_444 144
#define FF_PROFILE_H264_HIGH_444_PREDICTIVE 244
#define FF_PROFILE_H264_HIGH_444_INTRA (244|FF_PROFILE_H264_INTRA)
#define FF_PROFILE_H264_CAVLC_444 44
#define FF_PROFILE_VC1_SIMPLE 0
#define FF_PROFILE_VC1_MAIN 1
#define FF_PROFILE_VC1_COMPLEX 2
#define FF_PROFILE_VC1_ADVANCED 3
#define FF_PROFILE_MPEG4_SIMPLE 0
#define FF_PROFILE_MPEG4_SIMPLE_SCALABLE 1
#define FF_PROFILE_MPEG4_CORE 2
#define FF_PROFILE_MPEG4_MAIN 3
#define FF_PROFILE_MPEG4_N_BIT 4
#define FF_PROFILE_MPEG4_SCALABLE_TEXTURE 5
#define FF_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION 6
#define FF_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE 7
#define FF_PROFILE_MPEG4_HYBRID 8
#define FF_PROFILE_MPEG4_ADVANCED_REAL_TIME 9
#define FF_PROFILE_MPEG4_CORE_SCALABLE 10
#define FF_PROFILE_MPEG4_ADVANCED_CODING 11
#define FF_PROFILE_MPEG4_ADVANCED_CORE 12
#define FF_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE 13
#define FF_PROFILE_MPEG4_SIMPLE_STUDIO 14
#define FF_PROFILE_MPEG4_ADVANCED_SIMPLE 15
#define FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0 0
#define FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1 1
#define FF_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION 2
#define FF_PROFILE_JPEG2000_DCINEMA_2K 3
#define FF_PROFILE_JPEG2000_DCINEMA_4K 4
#define FF_PROFILE_HEVC_MAIN 1
#define FF_PROFILE_HEVC_MAIN_10 2
#define FF_PROFILE_HEVC_MAIN_STILL_PICTURE 3
#define FF_PROFILE_HEVC_REXT 4
/**
* level
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
int level;
#define FF_LEVEL_UNKNOWN -99
/**
* Skip loop filtering for selected frames.
* - encoding: unused
* - decoding: Set by user.
*/
enum AVDiscard skip_loop_filter;
/**
* Skip IDCT/dequantization for selected frames.
* - encoding: unused
* - decoding: Set by user.
*/
enum AVDiscard skip_idct;
/**
* Skip decoding for selected frames.
* - encoding: unused
* - decoding: Set by user.
*/
enum AVDiscard skip_frame;
/**
* Header containing style information for text subtitles.
* For SUBTITLE_ASS subtitle type, it should contain the whole ASS
* [Script Info] and [V4+ Styles] section, plus the [Events] line and
* the Format line following. It shouldn't include any Dialogue line.
* - encoding: Set/allocated/freed by user (before avcodec_open2())
* - decoding: Set/allocated/freed by libavcodec (by avcodec_open2())
*/
uint8_t *subtitle_header;
int subtitle_header_size;
#if FF_API_ERROR_RATE
/**
* @deprecated use the 'error_rate' private AVOption of the mpegvideo
* encoders
*/
attribute_deprecated
int error_rate;
#endif
#if FF_API_CODEC_PKT
/**
* @deprecated this field is not supposed to be accessed from outside lavc
*/
attribute_deprecated
AVPacket *pkt;
#endif
/**
* VBV delay coded in the last frame (in periods of a 27 MHz clock).
* Used for compliant TS muxing.
* - encoding: Set by libavcodec.
* - decoding: unused.
*/
uint64_t vbv_delay;
/**
* Encoding only. Allow encoders to output packets that do not contain any
* encoded data, only side data.
*
* Some encoders need to output such packets, e.g. to update some stream
* parameters at the end of encoding.
*
* All callers are strongly recommended to set this option to 1 and update
* their code to deal with such packets, since this behaviour may become
* always enabled in the future (then this option will be deprecated and
* later removed). To avoid ABI issues when this happens, the callers should
* use AVOptions to set this field.
*/
int side_data_only_packets;
/**
* Audio only. The number of "priming" samples (padding) inserted by the
* encoder at the beginning of the audio. I.e. this number of leading
* decoded samples must be discarded by the caller to get the original audio
* without leading padding.
*
* - decoding: unused
* - encoding: Set by libavcodec. The timestamps on the output packets are
* adjusted by the encoder so that they always refer to the
* first sample of the data actually contained in the packet,
* including any added padding. E.g. if the timebase is
* 1/samplerate and the timestamp of the first input sample is
* 0, the timestamp of the first output packet will be
* -initial_padding.
*/
int initial_padding;
/**
* - decoding: For codecs that store a framerate value in the compressed
* bitstream, the decoder may export it here. { 0, 1} when
* unknown.
* - encoding: unused
*/
AVRational framerate;
/**
* Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
* - encoding: unused.
* - decoding: Set by libavcodec before calling get_format()
*/
enum AVPixelFormat sw_pix_fmt;
/**
* Timebase in which pkt_dts/pts and AVPacket.dts/pts are.
* Code outside libavcodec should access this field using:
* av_codec_{get,set}_pkt_timebase(avctx)
* - encoding unused.
* - decoding set by user.
*/
AVRational pkt_timebase;
/**
* AVCodecDescriptor
* Code outside libavcodec should access this field using:
* av_codec_{get,set}_codec_descriptor(avctx)
* - encoding: unused.
* - decoding: set by libavcodec.
*/
const AVCodecDescriptor *codec_descriptor;
#if !FF_API_LOWRES
/**
* low resolution decoding, 1-> 1/2 size, 2->1/4 size
* - encoding: unused
* - decoding: Set by user.
* Code outside libavcodec should access this field using:
* av_codec_{get,set}_lowres(avctx)
*/
int lowres;
#endif
/**
* Current statistics for PTS correction.
* - decoding: maintained and used by libavcodec, not intended to be used by user apps
* - encoding: unused
*/
int64_t pts_correction_num_faulty_pts; /// Number of incorrect PTS values so far
int64_t pts_correction_num_faulty_dts; /// Number of incorrect DTS values so far
int64_t pts_correction_last_pts; /// PTS of the last frame
int64_t pts_correction_last_dts; /// DTS of the last frame
/**
* Character encoding of the input subtitles file.
* - decoding: set by user
* - encoding: unused
*/
char *sub_charenc;
/**
* Subtitles character encoding mode. Formats or codecs might be adjusting
* this setting (if they are doing the conversion themselves for instance).
* - decoding: set by libavcodec
* - encoding: unused
*/
int sub_charenc_mode;
#define FF_SUB_CHARENC_MODE_DO_NOTHING -1 ///< do nothing (demuxer outputs a stream supposed to be already in UTF-8, or the codec is bitmap for instance)
#define FF_SUB_CHARENC_MODE_AUTOMATIC 0 ///< libavcodec will select the mode itself
#define FF_SUB_CHARENC_MODE_PRE_DECODER 1 ///< the AVPacket data needs to be recoded to UTF-8 before being fed to the decoder, requires iconv
/**
* Skip processing alpha if supported by codec.
* Note that if the format uses pre-multiplied alpha (common with VP6,
* and recommended due to better video quality/compression)
* the image will look as if alpha-blended onto a black background.
* However for formats that do not use pre-multiplied alpha
* there might be serious artefacts (though e.g. libswscale currently
* assumes pre-multiplied alpha anyway).
* Code outside libavcodec should access this field using AVOptions
*
* - decoding: set by user
* - encoding: unused
*/
int skip_alpha;
/**
* Number of samples to skip after a discontinuity
* - decoding: unused
* - encoding: set by libavcodec
*/
int seek_preroll;
#if !FF_API_DEBUG_MV
/**
* debug motion vectors
* Code outside libavcodec should access this field using AVOptions
* - encoding: Set by user.
* - decoding: Set by user.
*/
int debug_mv;
#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
#endif
/**
* custom intra quantization matrix
* Code outside libavcodec should access this field using av_codec_g/set_chroma_intra_matrix()
* - encoding: Set by user, can be NULL.
* - decoding: unused.
*/
uint16_t *chroma_intra_matrix;
/**
* dump format separator.
* can be ", " or "\n " or anything else
* Code outside libavcodec should access this field using AVOptions
* (NO direct access).
* - encoding: Set by user.
* - decoding: Set by user.
*/
uint8_t *dump_separator;
/**
* ',' separated list of allowed decoders.
* If NULL then all are allowed
* - encoding: unused
* - decoding: set by user through AVOPtions (NO direct access)
*/
char *codec_whitelist;
} AVCodecContext;
AVRational av_codec_get_pkt_timebase (const AVCodecContext *avctx);
void av_codec_set_pkt_timebase (AVCodecContext *avctx, AVRational val);
const AVCodecDescriptor *av_codec_get_codec_descriptor(const AVCodecContext *avctx);
void av_codec_set_codec_descriptor(AVCodecContext *avctx, const AVCodecDescriptor *desc);
int av_codec_get_lowres(const AVCodecContext *avctx);
void av_codec_set_lowres(AVCodecContext *avctx, int val);
int av_codec_get_seek_preroll(const AVCodecContext *avctx);
void av_codec_set_seek_preroll(AVCodecContext *avctx, int val);
uint16_t *av_codec_get_chroma_intra_matrix(const AVCodecContext *avctx);
void av_codec_set_chroma_intra_matrix(AVCodecContext *avctx, uint16_t *val);
/**
* AVProfile.
*/
typedef struct AVProfile {
int profile;
const char *name; ///< short name for the profile
} AVProfile;
typedef struct AVCodecDefault AVCodecDefault;
struct AVSubtitle;
/**
* AVCodec.
*/
typedef struct AVCodec {
/**
* Name of the codec implementation.
* The name is globally unique among encoders and among decoders (but an
* encoder and a decoder can share the same name).
* This is the primary way to find a codec from the user perspective.
*/
const char *name;
/**
* Descriptive name for the codec, meant to be more human readable than name.
* You should use the NULL_IF_CONFIG_SMALL() macro to define it.
*/
const char *long_name;
enum AVMediaType type;
enum AVCodecID id;
/**
* Codec capabilities.
* see CODEC_CAP_*
*/
int capabilities;
const AVRational *supported_framerates; ///< array of supported framerates, or NULL if any, array is terminated by {0,0}
const enum AVPixelFormat *pix_fmts; ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1
const int *supported_samplerates; ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0
const enum AVSampleFormat *sample_fmts; ///< array of supported sample formats, or NULL if unknown, array is terminated by -1
const uint64_t *channel_layouts; ///< array of support channel layouts, or NULL if unknown. array is terminated by 0
#if FF_API_LOWRES
uint8_t max_lowres; ///< maximum value for lowres supported by the decoder, no direct access, use av_codec_get_max_lowres()
#endif
const AVClass *priv_class; ///< AVClass for the private context
const AVProfile *profiles; ///< array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
/*****************************************************************
* No fields below this line are part of the public API. They
* may not be used outside of libavcodec and can be changed and
* removed at will.
* New public fields should be added right above.
*****************************************************************
*/
int priv_data_size;
struct AVCodec *next;
/**
* @name Frame-level threading support functions
* @{
*/
/**
* If defined, called on thread contexts when they are created.
* If the codec allocates writable tables in init(), re-allocate them here.
* priv_data will be set to a copy of the original.
*/
int (*init_thread_copy)(AVCodecContext *);
/**
* Copy necessary context variables from a previous thread context to the current one.
* If not defined, the next thread will start automatically; otherwise, the codec
* must call ff_thread_finish_setup().
*
* dst and src will (rarely) point to the same context, in which case memcpy should be skipped.
*/
int (*update_thread_context)(AVCodecContext *dst, const AVCodecContext *src);
/** @} */
/**
* Private codec-specific defaults.
*/
const AVCodecDefault *defaults;
/**
* Initialize codec static data, called from avcodec_register().
*/
void (*init_static_data)(struct AVCodec *codec);
int (*init)(AVCodecContext *);
int (*encode_sub)(AVCodecContext *, uint8_t *buf, int buf_size,
const struct AVSubtitle *sub);
/**
* Encode data to an AVPacket.
*
* @param avctx codec context
* @param avpkt output AVPacket (may contain a user-provided buffer)
* @param[in] frame AVFrame containing the raw data to be encoded
* @param[out] got_packet_ptr encoder sets to 0 or 1 to indicate that a
* non-empty packet was returned in avpkt.
* @return 0 on success, negative error code on failure
*/
int (*encode2)(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame,
int *got_packet_ptr);
int (*decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt);
int (*close)(AVCodecContext *);
/**
* Flush buffers.
* Will be called when seeking
*/
void (*flush)(AVCodecContext *);
} AVCodec;
int av_codec_get_max_lowres(const AVCodec *codec);
struct MpegEncContext;
/**
* @defgroup lavc_hwaccel AVHWAccel
* @{
*/
typedef struct AVHWAccel {
/**
* Name of the hardware accelerated codec.
* The name is globally unique among encoders and among decoders (but an
* encoder and a decoder can share the same name).
*/
const char *name;
/**
* Type of codec implemented by the hardware accelerator.
*
* See AVMEDIA_TYPE_xxx
*/
enum AVMediaType type;
/**
* Codec implemented by the hardware accelerator.
*
* See AV_CODEC_ID_xxx
*/
enum AVCodecID id;
/**
* Supported pixel format.
*
* Only hardware accelerated formats are supported here.
*/
enum AVPixelFormat pix_fmt;
/**
* Hardware accelerated codec capabilities.
* see FF_HWACCEL_CODEC_CAP_*
*/
int capabilities;
/*****************************************************************
* No fields below this line are part of the public API. They
* may not be used outside of libavcodec and can be changed and
* removed at will.
* New public fields should be added right above.
*****************************************************************
*/
struct AVHWAccel *next;
/**
* Allocate a custom buffer
*/
int (*alloc_frame)(AVCodecContext *avctx, AVFrame *frame);
/**
* Called at the beginning of each frame or field picture.
*
* Meaningful frame information (codec specific) is guaranteed to
* be parsed at this point. This function is mandatory.
*
* Note that buf can be NULL along with buf_size set to 0.
* Otherwise, this means the whole frame is available at this point.
*
* @param avctx the codec context
* @param buf the frame data buffer base
* @param buf_size the size of the frame in bytes
* @return zero if successful, a negative value otherwise
*/
int (*start_frame)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
/**
* Callback for each slice.
*
* Meaningful slice information (codec specific) is guaranteed to
* be parsed at this point. This function is mandatory.
* The only exception is XvMC, that works on MB level.
*
* @param avctx the codec context
* @param buf the slice data buffer base
* @param buf_size the size of the slice in bytes
* @return zero if successful, a negative value otherwise
*/
int (*decode_slice)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
/**
* Called at the end of each frame or field picture.
*
* The whole picture is parsed at this point and can now be sent
* to the hardware accelerator. This function is mandatory.
*
* @param avctx the codec context
* @return zero if successful, a negative value otherwise
*/
int (*end_frame)(AVCodecContext *avctx);
/**
* Size of per-frame hardware accelerator private data.
*
* Private data is allocated with av_mallocz() before
* AVCodecContext.get_buffer() and deallocated after
* AVCodecContext.release_buffer().
*/
int frame_priv_data_size;
/**
* Called for every Macroblock in a slice.
*
* XvMC uses it to replace the ff_mpv_decode_mb().
* Instead of decoding to raw picture, MB parameters are
* stored in an array provided by the video driver.
*
* @param s the mpeg context
*/
void (*decode_mb)(struct MpegEncContext *s);
/**
* Initialize the hwaccel private data.
*
* This will be called from ff_get_format(), after hwaccel and
* hwaccel_context are set and the hwaccel private data in AVCodecInternal
* is allocated.
*/
int (*init)(AVCodecContext *avctx);
/**
* Uninitialize the hwaccel private data.
*
* This will be called from get_format() or avcodec_close(), after hwaccel
* and hwaccel_context are already uninitialized.
*/
int (*uninit)(AVCodecContext *avctx);
/**
* Size of the private data to allocate in
* AVCodecInternal.hwaccel_priv_data.
*/
int priv_data_size;
} AVHWAccel;
/**
* Hardware acceleration should be used for decoding even if the codec level
* used is unknown or higher than the maximum supported level reported by the
* hardware driver.
*/
#define AV_HWACCEL_FLAG_IGNORE_LEVEL (1 << 0)
/**
* Hardware acceleration can output YUV pixel formats with a different chroma
* sampling than 4:2:0 and/or other than 8 bits per component.
*/
#define AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH (1 << 1)
/**
* @}
*/
/**
* @defgroup lavc_picture AVPicture
*
* Functions for working with AVPicture
* @{
*/
/**
* Picture data structure.
*
* Up to four components can be stored into it, the last component is
* alpha.
*/
typedef struct AVPicture {
uint8_t *data[AV_NUM_DATA_POINTERS]; ///< pointers to the image data planes
int linesize[AV_NUM_DATA_POINTERS]; ///< number of bytes per line
} AVPicture;
/**
* @}
*/
enum AVSubtitleType {
SUBTITLE_NONE,
SUBTITLE_BITMAP, ///< A bitmap, pict will be set
/**
* Plain text, the text field must be set by the decoder and is
* authoritative. ass and pict fields may contain approximations.
*/
SUBTITLE_TEXT,
/**
* Formatted text, the ass field must be set by the decoder and is
* authoritative. pict and text fields may contain approximations.
*/
SUBTITLE_ASS,
};
#define AV_SUBTITLE_FLAG_FORCED 0x00000001
typedef struct AVSubtitleRect {
int x; ///< top left corner of pict, undefined when pict is not set
int y; ///< top left corner of pict, undefined when pict is not set
int w; ///< width of pict, undefined when pict is not set
int h; ///< height of pict, undefined when pict is not set
int nb_colors; ///< number of colors in pict, undefined when pict is not set
/**
* data+linesize for the bitmap of this subtitle.
* can be set for text/ass as well once they are rendered
*/
AVPicture pict;
enum AVSubtitleType type;
char *text; ///< 0 terminated plain UTF-8 text
/**
* 0 terminated ASS/SSA compatible event line.
* The presentation of this is unaffected by the other values in this
* struct.
*/
char *ass;
int flags;
} AVSubtitleRect;
typedef struct AVSubtitle {
uint16_t format; /* 0 = graphics */
uint32_t start_display_time; /* relative to packet pts, in ms */
uint32_t end_display_time; /* relative to packet pts, in ms */
unsigned num_rects;
AVSubtitleRect **rects;
int64_t pts; ///< Same as packet pts, in AV_TIME_BASE
} AVSubtitle;
/**
* If c is NULL, returns the first registered codec,
* if c is non-NULL, returns the next registered codec after c,
* or NULL if c is the last one.
*/
AVCodec *av_codec_next(const AVCodec *c);
/**
* Return the LIBAVCODEC_VERSION_INT constant.
*/
unsigned avcodec_version(void);
/**
* Return the libavcodec build-time configuration.
*/
const char *avcodec_configuration(void);
/**
* Return the libavcodec license.
*/
const char *avcodec_license(void);
/**
* Register the codec codec and initialize libavcodec.
*
* @warning either this function or avcodec_register_all() must be called
* before any other libavcodec functions.
*
* @see avcodec_register_all()
*/
void avcodec_register(AVCodec *codec);
/**
* Register all the codecs, parsers and bitstream filters which were enabled at
* configuration time. If you do not call this function you can select exactly
* which formats you want to support, by using the individual registration
* functions.
*
* @see avcodec_register
* @see av_register_codec_parser
* @see av_register_bitstream_filter
*/
void avcodec_register_all(void);
/**
* Allocate an AVCodecContext and set its fields to default values. The
* resulting struct should be freed with avcodec_free_context().
*
* @param codec if non-NULL, allocate private data and initialize defaults
* for the given codec. It is illegal to then call avcodec_open2()
* with a different codec.
* If NULL, then the codec-specific defaults won't be initialized,
* which may result in suboptimal default settings (this is
* important mainly for encoders, e.g. libx264).
*
* @return An AVCodecContext filled with default values or NULL on failure.
* @see avcodec_get_context_defaults
*/
AVCodecContext *avcodec_alloc_context3(const AVCodec *codec);
/**
* Free the codec context and everything associated with it and write NULL to
* the provided pointer.
*/
void avcodec_free_context(AVCodecContext **avctx);
/**
* Set the fields of the given AVCodecContext to default values corresponding
* to the given codec (defaults may be codec-dependent).
*
* Do not call this function if a non-NULL codec has been passed
* to avcodec_alloc_context3() that allocated this AVCodecContext.
* If codec is non-NULL, it is illegal to call avcodec_open2() with a
* different codec on this AVCodecContext.
*/
int avcodec_get_context_defaults3(AVCodecContext *s, const AVCodec *codec);
/**
* Get the AVClass for AVCodecContext. It can be used in combination with
* AV_OPT_SEARCH_FAKE_OBJ for examining options.
*
* @see av_opt_find().
*/
const AVClass *avcodec_get_class(void);
/**
* Get the AVClass for AVFrame. It can be used in combination with
* AV_OPT_SEARCH_FAKE_OBJ for examining options.
*
* @see av_opt_find().
*/
const AVClass *avcodec_get_frame_class(void);
/**
* Get the AVClass for AVSubtitleRect. It can be used in combination with
* AV_OPT_SEARCH_FAKE_OBJ for examining options.
*
* @see av_opt_find().
*/
const AVClass *avcodec_get_subtitle_rect_class(void);
/**
* Copy the settings of the source AVCodecContext into the destination
* AVCodecContext. The resulting destination codec context will be
* unopened, i.e. you are required to call avcodec_open2() before you
* can use this AVCodecContext to decode/encode video/audio data.
*
* @param dest target codec context, should be initialized with
* avcodec_alloc_context3(NULL), but otherwise uninitialized
* @param src source codec context
* @return AVERROR() on error (e.g. memory allocation error), 0 on success
*/
int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src);
#if FF_API_AVFRAME_LAVC
/**
* @deprecated use av_frame_alloc()
*/
attribute_deprecated
AVFrame *avcodec_alloc_frame(void);
/**
* Set the fields of the given AVFrame to default values.
*
* @param frame The AVFrame of which the fields should be set to default values.
*
* @deprecated use av_frame_unref()
*/
attribute_deprecated
void avcodec_get_frame_defaults(AVFrame *frame);
/**
* Free the frame and any dynamically allocated objects in it,
* e.g. extended_data.
*
* @param frame frame to be freed. The pointer will be set to NULL.
*
* @warning this function does NOT free the data buffers themselves
* (it does not know how, since they might have been allocated with
* a custom get_buffer()).
*
* @deprecated use av_frame_free()
*/
attribute_deprecated
void avcodec_free_frame(AVFrame **frame);
#endif
/**
* Initialize the AVCodecContext to use the given AVCodec. Prior to using this
* function the context has to be allocated with avcodec_alloc_context3().
*
* The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(),
* avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for
* retrieving a codec.
*
* @warning This function is not thread safe!
*
* @note Always call this function before using decoding routines (such as
* @ref avcodec_decode_video2()).
*
* @code
* avcodec_register_all();
* av_dict_set(&opts, "b", "2.5M", 0);
* codec = avcodec_find_decoder(AV_CODEC_ID_H264);
* if (!codec)
* exit(1);
*
* context = avcodec_alloc_context3(codec);
*
* if (avcodec_open2(context, codec, opts) < 0)
* exit(1);
* @endcode
*
* @param avctx The context to initialize.
* @param codec The codec to open this context for. If a non-NULL codec has been
* previously passed to avcodec_alloc_context3() or
* avcodec_get_context_defaults3() for this context, then this
* parameter MUST be either NULL or equal to the previously passed
* codec.
* @param options A dictionary filled with AVCodecContext and codec-private options.
* On return this object will be filled with options that were not found.
*
* @return zero on success, a negative value on error
* @see avcodec_alloc_context3(), avcodec_find_decoder(), avcodec_find_encoder(),
* av_dict_set(), av_opt_find().
*/
int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options);
/**
* Close a given AVCodecContext and free all the data associated with it
* (but not the AVCodecContext itself).
*
* Calling this function on an AVCodecContext that hasn't been opened will free
* the codec-specific data allocated in avcodec_alloc_context3() /
* avcodec_get_context_defaults3() with a non-NULL codec. Subsequent calls will
* do nothing.
*/
int avcodec_close(AVCodecContext *avctx);
/**
* Free all allocated data in the given subtitle struct.
*
* @param sub AVSubtitle to free.
*/
void avsubtitle_free(AVSubtitle *sub);
/**
* @}
*/
/**
* @addtogroup lavc_packet
* @{
*/
#if FF_API_DESTRUCT_PACKET
/**
* Default packet destructor.
* @deprecated use the AVBuffer API instead
*/
attribute_deprecated
void av_destruct_packet(AVPacket *pkt);
#endif
/**
* Initialize optional fields of a packet with default values.
*
* Note, this does not touch the data and size members, which have to be
* initialized separately.
*
* @param pkt packet
*/
void av_init_packet(AVPacket *pkt);
/**
* Allocate the payload of a packet and initialize its fields with
* default values.
*
* @param pkt packet
* @param size wanted payload size
* @return 0 if OK, AVERROR_xxx otherwise
*/
int av_new_packet(AVPacket *pkt, int size);
/**
* Reduce packet size, correctly zeroing padding
*
* @param pkt packet
* @param size new size
*/
void av_shrink_packet(AVPacket *pkt, int size);
/**
* Increase packet size, correctly zeroing padding
*
* @param pkt packet
* @param grow_by number of bytes by which to increase the size of the packet
*/
int av_grow_packet(AVPacket *pkt, int grow_by);
/**
* Initialize a reference-counted packet from av_malloc()ed data.
*
* @param pkt packet to be initialized. This function will set the data, size,
* buf and destruct fields, all others are left untouched.
* @param data Data allocated by av_malloc() to be used as packet data. If this
* function returns successfully, the data is owned by the underlying AVBuffer.
* The caller may not access the data through other means.
* @param size size of data in bytes, without the padding. I.e. the full buffer
* size is assumed to be size + FF_INPUT_BUFFER_PADDING_SIZE.
*
* @return 0 on success, a negative AVERROR on error
*/
int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size);
/**
* @warning This is a hack - the packet memory allocation stuff is broken. The
* packet is allocated if it was not really allocated.
*/
int av_dup_packet(AVPacket *pkt);
/**
* Copy packet, including contents
*
* @return 0 on success, negative AVERROR on fail
*/
int av_copy_packet(AVPacket *dst, const AVPacket *src);
/**
* Copy packet side data
*
* @return 0 on success, negative AVERROR on fail
*/
int av_copy_packet_side_data(AVPacket *dst, const AVPacket *src);
/**
* Free a packet.
*
* @param pkt packet to free
*/
void av_free_packet(AVPacket *pkt);
/**
* Allocate new information of a packet.
*
* @param pkt packet
* @param type side information type
* @param size side information size
* @return pointer to fresh allocated data or NULL otherwise
*/
uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
int size);
/**
* Shrink the already allocated side data buffer
*
* @param pkt packet
* @param type side information type
* @param size new side information size
* @return 0 on success, < 0 on failure
*/
int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
int size);
/**
* Get side information from packet.
*
* @param pkt packet
* @param type desired side information type
* @param size pointer for side information size to store (optional)
* @return pointer to data if present or NULL otherwise
*/
uint8_t* av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
int *size);
int av_packet_merge_side_data(AVPacket *pkt);
int av_packet_split_side_data(AVPacket *pkt);
/**
* Pack a dictionary for use in side_data.
*
* @param dict The dictionary to pack.
* @param size pointer to store the size of the returned data
* @return pointer to data if successful, NULL otherwise
*/
uint8_t *av_packet_pack_dictionary(AVDictionary *dict, int *size);
/**
* Unpack a dictionary from side_data.
*
* @param data data from side_data
* @param size size of the data
* @param dict the metadata storage dictionary
* @return 0 on success, < 0 on failure
*/
int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict);
/**
* Convenience function to free all the side data stored.
* All the other fields stay untouched.
*
* @param pkt packet
*/
void av_packet_free_side_data(AVPacket *pkt);
/**
* Setup a new reference to the data described by a given packet
*
* If src is reference-counted, setup dst as a new reference to the
* buffer in src. Otherwise allocate a new buffer in dst and copy the
* data from src into it.
*
* All the other fields are copied from src.
*
* @see av_packet_unref
*
* @param dst Destination packet
* @param src Source packet
*
* @return 0 on success, a negative AVERROR on error.
*/
int av_packet_ref(AVPacket *dst, const AVPacket *src);
/**
* Wipe the packet.
*
* Unreference the buffer referenced by the packet and reset the
* remaining packet fields to their default values.
*
* @param pkt The packet to be unreferenced.
*/
void av_packet_unref(AVPacket *pkt);
/**
* Move every field in src to dst and reset src.
*
* @see av_packet_unref
*
* @param src Source packet, will be reset
* @param dst Destination packet
*/
void av_packet_move_ref(AVPacket *dst, AVPacket *src);
/**
* Copy only "properties" fields from src to dst.
*
* Properties for the purpose of this function are all the fields
* beside those related to the packet data (buf, data, size)
*
* @param dst Destination packet
* @param src Source packet
*
* @return 0 on success AVERROR on failure.
*
*/
int av_packet_copy_props(AVPacket *dst, const AVPacket *src);
/**
* Convert valid timing fields (timestamps / durations) in a packet from one
* timebase to another. Timestamps with unknown values (AV_NOPTS_VALUE) will be
* ignored.
*
* @param pkt packet on which the conversion will be performed
* @param tb_src source timebase, in which the timing fields in pkt are
* expressed
* @param tb_dst destination timebase, to which the timing fields will be
* converted
*/
void av_packet_rescale_ts(AVPacket *pkt, AVRational tb_src, AVRational tb_dst);
/**
* @}
*/
/**
* @addtogroup lavc_decoding
* @{
*/
/**
* Find a registered decoder with a matching codec ID.
*
* @param id AVCodecID of the requested decoder
* @return A decoder if one was found, NULL otherwise.
*/
AVCodec *avcodec_find_decoder(enum AVCodecID id);
/**
* Find a registered decoder with the specified name.
*
* @param name name of the requested decoder
* @return A decoder if one was found, NULL otherwise.
*/
AVCodec *avcodec_find_decoder_by_name(const char *name);
#if FF_API_GET_BUFFER
attribute_deprecated int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
attribute_deprecated void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
attribute_deprecated int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
#endif
/**
* The default callback for AVCodecContext.get_buffer2(). It is made public so
* it can be called by custom get_buffer2() implementations for decoders without
* CODEC_CAP_DR1 set.
*/
int avcodec_default_get_buffer2(AVCodecContext *s, AVFrame *frame, int flags);
#if FF_API_EMU_EDGE
/**
* Return the amount of padding in pixels which the get_buffer callback must
* provide around the edge of the image for codecs which do not have the
* CODEC_FLAG_EMU_EDGE flag.
*
* @return Required padding in pixels.
*
* @deprecated CODEC_FLAG_EMU_EDGE is deprecated, so this function is no longer
* needed
*/
attribute_deprecated
unsigned avcodec_get_edge_width(void);
#endif
/**
* Modify width and height values so that they will result in a memory
* buffer that is acceptable for the codec if you do not use any horizontal
* padding.
*
* May only be used if a codec with CODEC_CAP_DR1 has been opened.
*/
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
/**
* Modify width and height values so that they will result in a memory
* buffer that is acceptable for the codec if you also ensure that all
* line sizes are a multiple of the respective linesize_align[i].
*
* May only be used if a codec with CODEC_CAP_DR1 has been opened.
*/
void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
int linesize_align[AV_NUM_DATA_POINTERS]);
/**
* Converts AVChromaLocation to swscale x/y chroma position.
*
* The positions represent the chroma (0,0) position in a coordinates system
* with luma (0,0) representing the origin and luma(1,1) representing 256,256
*
* @param xpos horizontal chroma sample position
* @param ypos vertical chroma sample position
*/
int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos);
/**
* Converts swscale x/y chroma position to AVChromaLocation.
*
* The positions represent the chroma (0,0) position in a coordinates system
* with luma (0,0) representing the origin and luma(1,1) representing 256,256
*
* @param xpos horizontal chroma sample position
* @param ypos vertical chroma sample position
*/
enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos);
#if FF_API_OLD_DECODE_AUDIO
/**
* Wrapper function which calls avcodec_decode_audio4.
*
* @deprecated Use avcodec_decode_audio4 instead.
*
* Decode the audio frame of size avpkt->size from avpkt->data into samples.
* Some decoders may support multiple frames in a single AVPacket, such
* decoders would then just decode the first frame. In this case,
* avcodec_decode_audio3 has to be called again with an AVPacket that contains
* the remaining data in order to decode the second frame etc.
* If no frame
* could be outputted, frame_size_ptr is zero. Otherwise, it is the
* decompressed frame size in bytes.
*
* @warning You must set frame_size_ptr to the allocated size of the
* output buffer before calling avcodec_decode_audio3().
*
* @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than
* the actual read bytes because some optimized bitstream readers read 32 or 64
* bits at once and could read over the end.
*
* @warning The end of the input buffer avpkt->data should be set to 0 to ensure that
* no overreading happens for damaged MPEG streams.
*
* @warning You must not provide a custom get_buffer() when using
* avcodec_decode_audio3(). Doing so will override it with
* avcodec_default_get_buffer. Use avcodec_decode_audio4() instead,
* which does allow the application to provide a custom get_buffer().
*
* @note You might have to align the input buffer avpkt->data and output buffer
* samples. The alignment requirements depend on the CPU: On some CPUs it isn't
* necessary at all, on others it won't work at all if not aligned and on others
* it will work but it will have an impact on performance.
*
* In practice, avpkt->data should have 4 byte alignment at minimum and
* samples should be 16 byte aligned unless the CPU doesn't need it
* (AltiVec and SSE do).
*
* @note Codecs which have the CODEC_CAP_DELAY capability set have a delay
* between input and output, these need to be fed with avpkt->data=NULL,
* avpkt->size=0 at the end to return the remaining frames.
*
* @param avctx the codec context
* @param[out] samples the output buffer, sample type in avctx->sample_fmt
* If the sample format is planar, each channel plane will
* be the same size, with no padding between channels.
* @param[in,out] frame_size_ptr the output buffer size in bytes
* @param[in] avpkt The input AVPacket containing the input buffer.
* You can create such packet with av_init_packet() and by then setting
* data and size, some decoders might in addition need other fields.
* All decoders are designed to use the least fields possible though.
* @return On error a negative value is returned, otherwise the number of bytes
* used or zero if no frame data was decompressed (used) from the input AVPacket.
*/
attribute_deprecated int avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
int *frame_size_ptr,
AVPacket *avpkt);
#endif
/**
* Decode the audio frame of size avpkt->size from avpkt->data into frame.
*
* Some decoders may support multiple frames in a single AVPacket. Such
* decoders would then just decode the first frame and the return value would be
* less than the packet size. In this case, avcodec_decode_audio4 has to be
* called again with an AVPacket containing the remaining data in order to
* decode the second frame, etc... Even if no frames are returned, the packet
* needs to be fed to the decoder with remaining data until it is completely
* consumed or an error occurs.
*
* Some decoders (those marked with CODEC_CAP_DELAY) have a delay between input
* and output. This means that for some packets they will not immediately
* produce decoded output and need to be flushed at the end of decoding to get
* all the decoded data. Flushing is done by calling this function with packets
* with avpkt->data set to NULL and avpkt->size set to 0 until it stops
* returning samples. It is safe to flush even those decoders that are not
* marked with CODEC_CAP_DELAY, then no samples will be returned.
*
* @warning The input buffer, avpkt->data must be FF_INPUT_BUFFER_PADDING_SIZE
* larger than the actual read bytes because some optimized bitstream
* readers read 32 or 64 bits at once and could read over the end.
*
* @note The AVCodecContext MUST have been opened with @ref avcodec_open2()
* before packets may be fed to the decoder.
*
* @param avctx the codec context
* @param[out] frame The AVFrame in which to store decoded audio samples.
* The decoder will allocate a buffer for the decoded frame by
* calling the AVCodecContext.get_buffer2() callback.
* When AVCodecContext.refcounted_frames is set to 1, the frame is
* reference counted and the returned reference belongs to the
* caller. The caller must release the frame using av_frame_unref()
* when the frame is no longer needed. The caller may safely write
* to the frame if av_frame_is_writable() returns 1.
* When AVCodecContext.refcounted_frames is set to 0, the returned
* reference belongs to the decoder and is valid only until the
* next call to this function or until closing or flushing the
* decoder. The caller may not write to it.
* @param[out] got_frame_ptr Zero if no frame could be decoded, otherwise it is
* non-zero. Note that this field being set to zero
* does not mean that an error has occurred. For
* decoders with CODEC_CAP_DELAY set, no given decode
* call is guaranteed to produce a frame.
* @param[in] avpkt The input AVPacket containing the input buffer.
* At least avpkt->data and avpkt->size should be set. Some
* decoders might also require additional fields to be set.
* @return A negative error code is returned if an error occurred during
* decoding, otherwise the number of bytes consumed from the input
* AVPacket is returned.
*/
int avcodec_decode_audio4(AVCodecContext *avctx, AVFrame *frame,
int *got_frame_ptr, const AVPacket *avpkt);
/**
* Decode the video frame of size avpkt->size from avpkt->data into picture.
* Some decoders may support multiple frames in a single AVPacket, such
* decoders would then just decode the first frame.
*
* @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than
* the actual read bytes because some optimized bitstream readers read 32 or 64
* bits at once and could read over the end.
*
* @warning The end of the input buffer buf should be set to 0 to ensure that
* no overreading happens for damaged MPEG streams.
*
* @note Codecs which have the CODEC_CAP_DELAY capability set have a delay
* between input and output, these need to be fed with avpkt->data=NULL,
* avpkt->size=0 at the end to return the remaining frames.
*
* @note The AVCodecContext MUST have been opened with @ref avcodec_open2()
* before packets may be fed to the decoder.
*
* @param avctx the codec context
* @param[out] picture The AVFrame in which the decoded video frame will be stored.
* Use av_frame_alloc() to get an AVFrame. The codec will
* allocate memory for the actual bitmap by calling the
* AVCodecContext.get_buffer2() callback.
* When AVCodecContext.refcounted_frames is set to 1, the frame is
* reference counted and the returned reference belongs to the
* caller. The caller must release the frame using av_frame_unref()
* when the frame is no longer needed. The caller may safely write
* to the frame if av_frame_is_writable() returns 1.
* When AVCodecContext.refcounted_frames is set to 0, the returned
* reference belongs to the decoder and is valid only until the
* next call to this function or until closing or flushing the
* decoder. The caller may not write to it.
*
* @param[in] avpkt The input AVPacket containing the input buffer.
* You can create such packet with av_init_packet() and by then setting
* data and size, some decoders might in addition need other fields like
* flags&AV_PKT_FLAG_KEY. All decoders are designed to use the least
* fields possible.
* @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero.
* @return On error a negative value is returned, otherwise the number of bytes
* used or zero if no frame could be decompressed.
*/
int avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
int *got_picture_ptr,
const AVPacket *avpkt);
/**
* Decode a subtitle message.
* Return a negative value on error, otherwise return the number of bytes used.
* If no subtitle could be decompressed, got_sub_ptr is zero.
* Otherwise, the subtitle is stored in *sub.
* Note that CODEC_CAP_DR1 is not available for subtitle codecs. This is for
* simplicity, because the performance difference is expect to be negligible
* and reusing a get_buffer written for video codecs would probably perform badly
* due to a potentially very different allocation pattern.
*
* Some decoders (those marked with CODEC_CAP_DELAY) have a delay between input
* and output. This means that for some packets they will not immediately
* produce decoded output and need to be flushed at the end of decoding to get
* all the decoded data. Flushing is done by calling this function with packets
* with avpkt->data set to NULL and avpkt->size set to 0 until it stops
* returning subtitles. It is safe to flush even those decoders that are not
* marked with CODEC_CAP_DELAY, then no subtitles will be returned.
*
* @note The AVCodecContext MUST have been opened with @ref avcodec_open2()
* before packets may be fed to the decoder.
*
* @param avctx the codec context
* @param[out] sub The Preallocated AVSubtitle in which the decoded subtitle will be stored,
* must be freed with avsubtitle_free if *got_sub_ptr is set.
* @param[in,out] got_sub_ptr Zero if no subtitle could be decompressed, otherwise, it is nonzero.
* @param[in] avpkt The input AVPacket containing the input buffer.
*/
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
int *got_sub_ptr,
AVPacket *avpkt);
/**
* @defgroup lavc_parsing Frame parsing
* @{
*/
enum AVPictureStructure {
AV_PICTURE_STRUCTURE_UNKNOWN, //< unknown
AV_PICTURE_STRUCTURE_TOP_FIELD, //< coded as top field
AV_PICTURE_STRUCTURE_BOTTOM_FIELD, //< coded as bottom field
AV_PICTURE_STRUCTURE_FRAME, //< coded as frame
};
typedef struct AVCodecParserContext {
void *priv_data;
struct AVCodecParser *parser;
int64_t frame_offset; /* offset of the current frame */
int64_t cur_offset; /* current offset
(incremented by each av_parser_parse()) */
int64_t next_frame_offset; /* offset of the next frame */
/* video info */
int pict_type; /* XXX: Put it back in AVCodecContext. */
/**
* This field is used for proper frame duration computation in lavf.
* It signals, how much longer the frame duration of the current frame
* is compared to normal frame duration.
*
* frame_duration = (1 + repeat_pict) * time_base
*
* It is used by codecs like H.264 to display telecined material.
*/
int repeat_pict; /* XXX: Put it back in AVCodecContext. */
int64_t pts; /* pts of the current frame */
int64_t dts; /* dts of the current frame */
/* private data */
int64_t last_pts;
int64_t last_dts;
int fetch_timestamp;
#define AV_PARSER_PTS_NB 4
int cur_frame_start_index;
int64_t cur_frame_offset[AV_PARSER_PTS_NB];
int64_t cur_frame_pts[AV_PARSER_PTS_NB];
int64_t cur_frame_dts[AV_PARSER_PTS_NB];
int flags;
#define PARSER_FLAG_COMPLETE_FRAMES 0x0001
#define PARSER_FLAG_ONCE 0x0002
/// Set if the parser has a valid file offset
#define PARSER_FLAG_FETCHED_OFFSET 0x0004
#define PARSER_FLAG_USE_CODEC_TS 0x1000
int64_t offset; ///< byte offset from starting packet start
int64_t cur_frame_end[AV_PARSER_PTS_NB];
/**
* Set by parser to 1 for key frames and 0 for non-key frames.
* It is initialized to -1, so if the parser doesn't set this flag,
* old-style fallback using AV_PICTURE_TYPE_I picture type as key frames
* will be used.
*/
int key_frame;
/**
* Time difference in stream time base units from the pts of this
* packet to the point at which the output from the decoder has converged
* independent from the availability of previous frames. That is, the
* frames are virtually identical no matter if decoding started from
* the very first frame or from this keyframe.
* Is AV_NOPTS_VALUE if unknown.
* This field is not the display duration of the current frame.
* This field has no meaning if the packet does not have AV_PKT_FLAG_KEY
* set.
*
* The purpose of this field is to allow seeking in streams that have no
* keyframes in the conventional sense. It corresponds to the
* recovery point SEI in H.264 and match_time_delta in NUT. It is also
* essential for some types of subtitle streams to ensure that all
* subtitles are correctly displayed after seeking.
*/
int64_t convergence_duration;
// Timestamp generation support:
/**
* Synchronization point for start of timestamp generation.
*
* Set to >0 for sync point, 0 for no sync point and <0 for undefined
* (default).
*
* For example, this corresponds to presence of H.264 buffering period
* SEI message.
*/
int dts_sync_point;
/**
* Offset of the current timestamp against last timestamp sync point in
* units of AVCodecContext.time_base.
*
* Set to INT_MIN when dts_sync_point unused. Otherwise, it must
* contain a valid timestamp offset.
*
* Note that the timestamp of sync point has usually a nonzero
* dts_ref_dts_delta, which refers to the previous sync point. Offset of
* the next frame after timestamp sync point will be usually 1.
*
* For example, this corresponds to H.264 cpb_removal_delay.
*/
int dts_ref_dts_delta;
/**
* Presentation delay of current frame in units of AVCodecContext.time_base.
*
* Set to INT_MIN when dts_sync_point unused. Otherwise, it must
* contain valid non-negative timestamp delta (presentation time of a frame
* must not lie in the past).
*
* This delay represents the difference between decoding and presentation
* time of the frame.
*
* For example, this corresponds to H.264 dpb_output_delay.
*/
int pts_dts_delta;
/**
* Position of the packet in file.
*
* Analogous to cur_frame_pts/dts
*/
int64_t cur_frame_pos[AV_PARSER_PTS_NB];
/**
* Byte position of currently parsed frame in stream.
*/
int64_t pos;
/**
* Previous frame byte position.
*/
int64_t last_pos;
/**
* Duration of the current frame.
* For audio, this is in units of 1 / AVCodecContext.sample_rate.
* For all other types, this is in units of AVCodecContext.time_base.
*/
int duration;
enum AVFieldOrder field_order;
/**
* Indicate whether a picture is coded as a frame, top field or bottom field.
*
* For example, H.264 field_pic_flag equal to 0 corresponds to
* AV_PICTURE_STRUCTURE_FRAME. An H.264 picture with field_pic_flag
* equal to 1 and bottom_field_flag equal to 0 corresponds to
* AV_PICTURE_STRUCTURE_TOP_FIELD.
*/
enum AVPictureStructure picture_structure;
/**
* Picture number incremented in presentation or output order.
* This field may be reinitialized at the first picture of a new sequence.
*
* For example, this corresponds to H.264 PicOrderCnt.
*/
int output_picture_number;
/**
* Dimensions of the decoded video intended for presentation.
*/
int width;
int height;
/**
* Dimensions of the coded video.
*/
int coded_width;
int coded_height;
/**
* The format of the coded data, corresponds to enum AVPixelFormat for video
* and for enum AVSampleFormat for audio.
*
* Note that a decoder can have considerable freedom in how exactly it
* decodes the data, so the format reported here might be different from the
* one returned by a decoder.
*/
int format;
} AVCodecParserContext;
typedef struct AVCodecParser {
int codec_ids[5]; /* several codec IDs are permitted */
int priv_data_size;
int (*parser_init)(AVCodecParserContext *s);
/* This callback never returns an error, a negative value means that
* the frame start was in a previous packet. */
int (*parser_parse)(AVCodecParserContext *s,
AVCodecContext *avctx,
const uint8_t **poutbuf, int *poutbuf_size,
const uint8_t *buf, int buf_size);
void (*parser_close)(AVCodecParserContext *s);
int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
struct AVCodecParser *next;
} AVCodecParser;
AVCodecParser *av_parser_next(const AVCodecParser *c);
void av_register_codec_parser(AVCodecParser *parser);
AVCodecParserContext *av_parser_init(int codec_id);
/**
* Parse a packet.
*
* @param s parser context.
* @param avctx codec context.
* @param poutbuf set to pointer to parsed buffer or NULL if not yet finished.
* @param poutbuf_size set to size of parsed buffer or zero if not yet finished.
* @param buf input buffer.
* @param buf_size input length, to signal EOF, this should be 0 (so that the last frame can be output).
* @param pts input presentation timestamp.
* @param dts input decoding timestamp.
* @param pos input byte position in stream.
* @return the number of bytes of the input bitstream used.
*
* Example:
* @code
* while(in_len){
* len = av_parser_parse2(myparser, AVCodecContext, &data, &size,
* in_data, in_len,
* pts, dts, pos);
* in_data += len;
* in_len -= len;
*
* if(size)
* decode_frame(data, size);
* }
* @endcode
*/
int av_parser_parse2(AVCodecParserContext *s,
AVCodecContext *avctx,
uint8_t **poutbuf, int *poutbuf_size,
const uint8_t *buf, int buf_size,
int64_t pts, int64_t dts,
int64_t pos);
/**
* @return 0 if the output buffer is a subset of the input, 1 if it is allocated and must be freed
* @deprecated use AVBitStreamFilter
*/
int av_parser_change(AVCodecParserContext *s,
AVCodecContext *avctx,
uint8_t **poutbuf, int *poutbuf_size,
const uint8_t *buf, int buf_size, int keyframe);
void av_parser_close(AVCodecParserContext *s);
/**
* @}
* @}
*/
/**
* @addtogroup lavc_encoding
* @{
*/
/**
* Find a registered encoder with a matching codec ID.
*
* @param id AVCodecID of the requested encoder
* @return An encoder if one was found, NULL otherwise.
*/
AVCodec *avcodec_find_encoder(enum AVCodecID id);
/**
* Find a registered encoder with the specified name.
*
* @param name name of the requested encoder
* @return An encoder if one was found, NULL otherwise.
*/
AVCodec *avcodec_find_encoder_by_name(const char *name);
#if FF_API_OLD_ENCODE_AUDIO
/**
* Encode an audio frame from samples into buf.
*
* @deprecated Use avcodec_encode_audio2 instead.
*
* @note The output buffer should be at least FF_MIN_BUFFER_SIZE bytes large.
* However, for codecs with avctx->frame_size equal to 0 (e.g. PCM) the user
* will know how much space is needed because it depends on the value passed
* in buf_size as described below. In that case a lower value can be used.
*
* @param avctx the codec context
* @param[out] buf the output buffer
* @param[in] buf_size the output buffer size
* @param[in] samples the input buffer containing the samples
* The number of samples read from this buffer is frame_size*channels,
* both of which are defined in avctx.
* For codecs which have avctx->frame_size equal to 0 (e.g. PCM) the number of
* samples read from samples is equal to:
* buf_size * 8 / (avctx->channels * av_get_bits_per_sample(avctx->codec_id))
* This also implies that av_get_bits_per_sample() must not return 0 for these
* codecs.
* @return On error a negative value is returned, on success zero or the number
* of bytes used to encode the data read from the input buffer.
*/
int attribute_deprecated avcodec_encode_audio(AVCodecContext *avctx,
uint8_t *buf, int buf_size,
const short *samples);
#endif
/**
* Encode a frame of audio.
*
* Takes input samples from frame and writes the next output packet, if
* available, to avpkt. The output packet does not necessarily contain data for
* the most recent frame, as encoders can delay, split, and combine input frames
* internally as needed.
*
* @param avctx codec context
* @param avpkt output AVPacket.
* The user can supply an output buffer by setting
* avpkt->data and avpkt->size prior to calling the
* function, but if the size of the user-provided data is not
* large enough, encoding will fail. If avpkt->data and
* avpkt->size are set, avpkt->destruct must also be set. All
* other AVPacket fields will be reset by the encoder using
* av_init_packet(). If avpkt->data is NULL, the encoder will
* allocate it. The encoder will set avpkt->size to the size
* of the output packet.
*
* If this function fails or produces no output, avpkt will be
* freed using av_free_packet() (i.e. avpkt->destruct will be
* called to free the user supplied buffer).
* @param[in] frame AVFrame containing the raw audio data to be encoded.
* May be NULL when flushing an encoder that has the
* CODEC_CAP_DELAY capability set.
* If CODEC_CAP_VARIABLE_FRAME_SIZE is set, then each frame
* can have any number of samples.
* If it is not set, frame->nb_samples must be equal to
* avctx->frame_size for all frames except the last.
* The final frame may be smaller than avctx->frame_size.
* @param[out] got_packet_ptr This field is set to 1 by libavcodec if the
* output packet is non-empty, and to 0 if it is
* empty. If the function returns an error, the
* packet can be assumed to be invalid, and the
* value of got_packet_ptr is undefined and should
* not be used.
* @return 0 on success, negative error code on failure
*/
int avcodec_encode_audio2(AVCodecContext *avctx, AVPacket *avpkt,
const AVFrame *frame, int *got_packet_ptr);
#if FF_API_OLD_ENCODE_VIDEO
/**
* @deprecated use avcodec_encode_video2() instead.
*
* Encode a video frame from pict into buf.
* The input picture should be
* stored using a specific format, namely avctx.pix_fmt.
*
* @param avctx the codec context
* @param[out] buf the output buffer for the bitstream of encoded frame
* @param[in] buf_size the size of the output buffer in bytes
* @param[in] pict the input picture to encode
* @return On error a negative value is returned, on success zero or the number
* of bytes used from the output buffer.
*/
attribute_deprecated
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
const AVFrame *pict);
#endif
/**
* Encode a frame of video.
*
* Takes input raw video data from frame and writes the next output packet, if
* available, to avpkt. The output packet does not necessarily contain data for
* the most recent frame, as encoders can delay and reorder input frames
* internally as needed.
*
* @param avctx codec context
* @param avpkt output AVPacket.
* The user can supply an output buffer by setting
* avpkt->data and avpkt->size prior to calling the
* function, but if the size of the user-provided data is not
* large enough, encoding will fail. All other AVPacket fields
* will be reset by the encoder using av_init_packet(). If
* avpkt->data is NULL, the encoder will allocate it.
* The encoder will set avpkt->size to the size of the
* output packet. The returned data (if any) belongs to the
* caller, he is responsible for freeing it.
*
* If this function fails or produces no output, avpkt will be
* freed using av_free_packet() (i.e. avpkt->destruct will be
* called to free the user supplied buffer).
* @param[in] frame AVFrame containing the raw video data to be encoded.
* May be NULL when flushing an encoder that has the
* CODEC_CAP_DELAY capability set.
* @param[out] got_packet_ptr This field is set to 1 by libavcodec if the
* output packet is non-empty, and to 0 if it is
* empty. If the function returns an error, the
* packet can be assumed to be invalid, and the
* value of got_packet_ptr is undefined and should
* not be used.
* @return 0 on success, negative error code on failure
*/
int avcodec_encode_video2(AVCodecContext *avctx, AVPacket *avpkt,
const AVFrame *frame, int *got_packet_ptr);
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
const AVSubtitle *sub);
/**
* @}
*/
#if FF_API_AVCODEC_RESAMPLE
/**
* @defgroup lavc_resample Audio resampling
* @ingroup libavc
* @deprecated use libswresample instead
*
* @{
*/
struct ReSampleContext;
struct AVResampleContext;
typedef struct ReSampleContext ReSampleContext;
/**
* Initialize audio resampling context.
*
* @param output_channels number of output channels
* @param input_channels number of input channels
* @param output_rate output sample rate
* @param input_rate input sample rate
* @param sample_fmt_out requested output sample format
* @param sample_fmt_in input sample format
* @param filter_length length of each FIR filter in the filterbank relative to the cutoff frequency
* @param log2_phase_count log2 of the number of entries in the polyphase filterbank
* @param linear if 1 then the used FIR filter will be linearly interpolated
between the 2 closest, if 0 the closest will be used
* @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate
* @return allocated ReSampleContext, NULL if error occurred
*/
attribute_deprecated
ReSampleContext *av_audio_resample_init(int output_channels, int input_channels,
int output_rate, int input_rate,
enum AVSampleFormat sample_fmt_out,
enum AVSampleFormat sample_fmt_in,
int filter_length, int log2_phase_count,
int linear, double cutoff);
attribute_deprecated
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
/**
* Free resample context.
*
* @param s a non-NULL pointer to a resample context previously
* created with av_audio_resample_init()
*/
attribute_deprecated
void audio_resample_close(ReSampleContext *s);
/**
* Initialize an audio resampler.
* Note, if either rate is not an integer then simply scale both rates up so they are.
* @param filter_length length of each FIR filter in the filterbank relative to the cutoff freq
* @param log2_phase_count log2 of the number of entries in the polyphase filterbank
* @param linear If 1 then the used FIR filter will be linearly interpolated
between the 2 closest, if 0 the closest will be used
* @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate
*/
attribute_deprecated
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
/**
* Resample an array of samples using a previously configured context.
* @param src an array of unconsumed samples
* @param consumed the number of samples of src which have been consumed are returned here
* @param src_size the number of unconsumed samples available
* @param dst_size the amount of space in samples available in dst
* @param update_ctx If this is 0 then the context will not be modified, that way several channels can be resampled with the same context.
* @return the number of samples written in dst or -1 if an error occurred
*/
attribute_deprecated
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
/**
* Compensate samplerate/timestamp drift. The compensation is done by changing
* the resampler parameters, so no audible clicks or similar distortions occur
* @param compensation_distance distance in output samples over which the compensation should be performed
* @param sample_delta number of output samples which should be output less
*
* example: av_resample_compensate(c, 10, 500)
* here instead of 510 samples only 500 samples would be output
*
* note, due to rounding the actual compensation might be slightly different,
* especially if the compensation_distance is large and the in_rate used during init is small
*/
attribute_deprecated
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
attribute_deprecated
void av_resample_close(struct AVResampleContext *c);
/**
* @}
*/
#endif
/**
* @addtogroup lavc_picture
* @{
*/
/**
* Allocate memory for the pixels of a picture and setup the AVPicture
* fields for it.
*
* Call avpicture_free() to free it.
*
* @param picture the picture structure to be filled in
* @param pix_fmt the pixel format of the picture
* @param width the width of the picture
* @param height the height of the picture
* @return zero if successful, a negative error code otherwise
*
* @see av_image_alloc(), avpicture_fill()
*/
int avpicture_alloc(AVPicture *picture, enum AVPixelFormat pix_fmt, int width, int height);
/**
* Free a picture previously allocated by avpicture_alloc().
* The data buffer used by the AVPicture is freed, but the AVPicture structure
* itself is not.
*
* @param picture the AVPicture to be freed
*/
void avpicture_free(AVPicture *picture);
/**
* Setup the picture fields based on the specified image parameters
* and the provided image data buffer.
*
* The picture fields are filled in by using the image data buffer
* pointed to by ptr.
*
* If ptr is NULL, the function will fill only the picture linesize
* array and return the required size for the image buffer.
*
* To allocate an image buffer and fill the picture data in one call,
* use avpicture_alloc().
*
* @param picture the picture to be filled in
* @param ptr buffer where the image data is stored, or NULL
* @param pix_fmt the pixel format of the image
* @param width the width of the image in pixels
* @param height the height of the image in pixels
* @return the size in bytes required for src, a negative error code
* in case of failure
*
* @see av_image_fill_arrays()
*/
int avpicture_fill(AVPicture *picture, const uint8_t *ptr,
enum AVPixelFormat pix_fmt, int width, int height);
/**
* Copy pixel data from an AVPicture into a buffer.
*
* avpicture_get_size() can be used to compute the required size for
* the buffer to fill.
*
* @param src source picture with filled data
* @param pix_fmt picture pixel format
* @param width picture width
* @param height picture height
* @param dest destination buffer
* @param dest_size destination buffer size in bytes
* @return the number of bytes written to dest, or a negative value
* (error code) on error, for example if the destination buffer is not
* big enough
*
* @see av_image_copy_to_buffer()
*/
int avpicture_layout(const AVPicture *src, enum AVPixelFormat pix_fmt,
int width, int height,
unsigned char *dest, int dest_size);
/**
* Calculate the size in bytes that a picture of the given width and height
* would occupy if stored in the given picture format.
*
* @param pix_fmt picture pixel format
* @param width picture width
* @param height picture he
gitextract_n0bz8qbc/ ├── .gitignore ├── DFURTSPPlayer/ │ ├── DFURTSPPlayer/ │ │ ├── DFUAppDelegate.h │ │ ├── DFUAppDelegate.m │ │ ├── DFURTSPPlayer-Info.plist │ │ ├── DFURTSPPlayer-Prefix.pch │ │ ├── DFUViewController.h │ │ ├── DFUViewController.m │ │ ├── FFMpegDecoder/ │ │ │ ├── AudioStreamer.h │ │ │ ├── AudioStreamer.m │ │ │ ├── RTSPPlayer.h │ │ │ ├── RTSPPlayer.m │ │ │ ├── Utilities.h │ │ │ └── Utilities.m │ │ ├── FFMpegiOS/ │ │ │ ├── include/ │ │ │ │ ├── libavcodec/ │ │ │ │ │ ├── avcodec.h │ │ │ │ │ ├── avfft.h │ │ │ │ │ ├── dv_profile.h │ │ │ │ │ ├── dxva2.h │ │ │ │ │ ├── old_codec_ids.h │ │ │ │ │ ├── qsv.h │ │ │ │ │ ├── vaapi.h │ │ │ │ │ ├── vda.h │ │ │ │ │ ├── vdpau.h │ │ │ │ │ ├── version.h │ │ │ │ │ ├── vorbis_parser.h │ │ │ │ │ └── xvmc.h │ │ │ │ ├── libavdevice/ │ │ │ │ │ ├── avdevice.h │ │ │ │ │ └── version.h │ │ │ │ ├── libavfilter/ │ │ │ │ │ ├── asrc_abuffer.h │ │ │ │ │ ├── avcodec.h │ │ │ │ │ ├── avfilter.h │ │ │ │ │ ├── avfiltergraph.h │ │ │ │ │ ├── buffersink.h │ │ │ │ │ ├── buffersrc.h │ │ │ │ │ └── version.h │ │ │ │ ├── libavformat/ │ │ │ │ │ ├── avformat.h │ │ │ │ │ ├── avio.h │ │ │ │ │ └── version.h │ │ │ │ ├── libavutil/ │ │ │ │ │ ├── adler32.h │ │ │ │ │ ├── aes.h │ │ │ │ │ ├── attributes.h │ │ │ │ │ ├── audio_fifo.h │ │ │ │ │ ├── audioconvert.h │ │ │ │ │ ├── avassert.h │ │ │ │ │ ├── avconfig.h │ │ │ │ │ ├── avstring.h │ │ │ │ │ ├── avutil.h │ │ │ │ │ ├── base64.h │ │ │ │ │ ├── blowfish.h │ │ │ │ │ ├── bprint.h │ │ │ │ │ ├── bswap.h │ │ │ │ │ ├── buffer.h │ │ │ │ │ ├── camellia.h │ │ │ │ │ ├── cast5.h │ │ │ │ │ ├── channel_layout.h │ │ │ │ │ ├── common.h │ │ │ │ │ ├── cpu.h │ │ │ │ │ ├── crc.h │ │ │ │ │ ├── dict.h │ │ │ │ │ ├── display.h │ │ │ │ │ ├── downmix_info.h │ │ │ │ │ ├── error.h │ │ │ │ │ ├── eval.h │ │ │ │ │ ├── ffversion.h │ │ │ │ │ ├── fifo.h │ │ │ │ │ ├── file.h │ │ │ │ │ ├── frame.h │ │ │ │ │ ├── hash.h │ │ │ │ │ ├── hmac.h │ │ │ │ │ ├── imgutils.h │ │ │ │ │ ├── intfloat.h │ │ │ │ │ ├── intreadwrite.h │ │ │ │ │ ├── lfg.h │ │ │ │ │ ├── log.h │ │ │ │ │ ├── lzo.h │ │ │ │ │ ├── macros.h │ │ │ │ │ ├── mathematics.h │ │ │ │ │ ├── md5.h │ │ │ │ │ ├── mem.h │ │ │ │ │ ├── motion_vector.h │ │ │ │ │ ├── murmur3.h │ │ │ │ │ ├── old_pix_fmts.h │ │ │ │ │ ├── opt.h │ │ │ │ │ ├── parseutils.h │ │ │ │ │ ├── pixdesc.h │ │ │ │ │ ├── pixelutils.h │ │ │ │ │ ├── pixfmt.h │ │ │ │ │ ├── random_seed.h │ │ │ │ │ ├── rational.h │ │ │ │ │ ├── replaygain.h │ │ │ │ │ ├── ripemd.h │ │ │ │ │ ├── samplefmt.h │ │ │ │ │ ├── sha.h │ │ │ │ │ ├── sha512.h │ │ │ │ │ ├── stereo3d.h │ │ │ │ │ ├── threadmessage.h │ │ │ │ │ ├── time.h │ │ │ │ │ ├── timecode.h │ │ │ │ │ ├── timestamp.h │ │ │ │ │ ├── twofish.h │ │ │ │ │ ├── version.h │ │ │ │ │ └── xtea.h │ │ │ │ ├── libswresample/ │ │ │ │ │ ├── swresample.h │ │ │ │ │ └── version.h │ │ │ │ └── libswscale/ │ │ │ │ ├── swscale.h │ │ │ │ └── version.h │ │ │ └── lib/ │ │ │ ├── libavcodec.a │ │ │ ├── libavdevice.a │ │ │ ├── libavfilter.a │ │ │ ├── libavformat.a │ │ │ ├── libavutil.a │ │ │ ├── libswresample.a │ │ │ └── libswscale.a │ │ ├── en.lproj/ │ │ │ ├── DFUViewController_iPad.xib │ │ │ ├── DFUViewController_iPhone.xib │ │ │ └── InfoPlist.strings │ │ └── main.m │ ├── DFURTSPPlayer.xcodeproj/ │ │ └── project.pbxproj │ └── DFURTSPPlayerTests/ │ ├── DFURTSPPlayerTests-Info.plist │ ├── DFURTSPPlayerTests.h │ ├── DFURTSPPlayerTests.m │ └── en.lproj/ │ └── InfoPlist.strings └── README.md
SYMBOL INDEX (453 symbols across 67 files)
FILE: DFURTSPPlayer/DFURTSPPlayer/DFUViewController.h
function interface (line 13) | interface DFUViewController : UIViewController
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/AudioStreamer.h
type AUDIO_STATE (line 9) | typedef enum _AUDIO_STATE {
function interface (line 17) | interface AudioStreamer : NSObject
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/RTSPPlayer.h
function interface (line 9) | interface RTSPPlayer : NSObject {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/Utilities.h
function interface (line 24) | interface Utilities : NSObject {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/avcodec.h
type AVCodecID (line 102) | enum AVCodecID {
type AVCodecDescriptor (line 558) | typedef struct AVCodecDescriptor {
type Motion_Est_ID (line 642) | enum Motion_Est_ID {
type AVDiscard (line 658) | enum AVDiscard{
type AVAudioServiceType (line 670) | enum AVAudioServiceType {
type RcOverride (line 686) | typedef struct RcOverride{
type AVPanScan (line 921) | typedef struct AVPanScan{
type AVPacketSideDataType (line 975) | enum AVPacketSideDataType {
type AVPacketSideData (line 1109) | typedef struct AVPacketSideData {
type AVPacket (line 1137) | typedef struct AVPacket {
type AVSideDataParamChangeFlags (line 1209) | enum AVSideDataParamChangeFlags {
type AVCodecInternal (line 1219) | struct AVCodecInternal
type AVFieldOrder (line 1221) | enum AVFieldOrder {
type AVCodecContext (line 1239) | typedef struct AVCodecContext {
type AVProfile (line 3161) | typedef struct AVProfile {
type AVCodecDefault (line 3166) | typedef struct AVCodecDefault AVCodecDefault;
type AVSubtitle (line 3168) | struct AVSubtitle
type AVCodec (line 3173) | typedef struct AVCodec {
type MpegEncContext (line 3269) | struct MpegEncContext
type AVHWAccel (line 3275) | typedef struct AVHWAccel {
type AVPicture (line 3439) | typedef struct AVPicture {
type AVSubtitleType (line 3448) | enum AVSubtitleType {
type AVSubtitleRect (line 3468) | typedef struct AVSubtitleRect {
type AVSubtitle (line 3494) | typedef struct AVSubtitle {
type AVPacketSideDataType (line 3813) | enum AVPacketSideDataType
type AVPacketSideDataType (line 3824) | enum AVPacketSideDataType
type AVPacketSideDataType (line 3835) | enum AVPacketSideDataType
type AVCodecID (line 3949) | enum AVCodecID
type AVChromaLocation (line 4015) | enum AVChromaLocation
type AVChromaLocation (line 4026) | enum AVChromaLocation
type AVPictureStructure (line 4225) | enum AVPictureStructure {
type AVCodecParserContext (line 4232) | typedef struct AVCodecParserContext {
type AVCodecParser (line 4410) | typedef struct AVCodecParser {
type AVCodecID (line 4491) | enum AVCodecID
type ReSampleContext (line 4646) | struct ReSampleContext
type AVResampleContext (line 4647) | struct AVResampleContext
type ReSampleContext (line 4649) | typedef struct ReSampleContext ReSampleContext;
type AVSampleFormat (line 4670) | enum AVSampleFormat
type AVSampleFormat (line 4671) | enum AVSampleFormat
type AVResampleContext (line 4710) | struct AVResampleContext
type AVResampleContext (line 4726) | struct AVResampleContext
type AVResampleContext (line 4728) | struct AVResampleContext
type AVPixelFormat (line 4754) | enum AVPixelFormat
type AVPixelFormat (line 4789) | enum AVPixelFormat
type AVPixelFormat (line 4809) | enum AVPixelFormat
type AVPixelFormat (line 4825) | enum AVPixelFormat
type AVPixelFormat (line 4835) | enum AVPixelFormat
type AVPixelFormat (line 4841) | enum AVPixelFormat
type AVPixelFormat (line 4847) | enum AVPixelFormat
type AVPixelFormat (line 4852) | enum AVPixelFormat
type AVPixelFormat (line 4890) | enum AVPixelFormat
type AVPixelFormat (line 4897) | enum AVPixelFormat
type AVPixelFormat (line 4902) | enum AVPixelFormat
type AVPixelFormat (line 4902) | enum AVPixelFormat
type AVPixelFormat (line 4922) | enum AVPixelFormat
type AVPixelFormat (line 4922) | enum AVPixelFormat
type AVPixelFormat (line 4923) | enum AVPixelFormat
type AVPixelFormat (line 4929) | enum AVPixelFormat
type AVPixelFormat (line 4929) | enum AVPixelFormat
type AVPixelFormat (line 4929) | enum AVPixelFormat
type AVPixelFormat (line 4930) | enum AVPixelFormat
type AVPixelFormat (line 4934) | enum AVPixelFormat
type AVPixelFormat (line 4934) | enum AVPixelFormat
type AVPixelFormat (line 4935) | enum AVPixelFormat
type AVPixelFormat (line 4938) | enum AVPixelFormat
type AVPixelFormat (line 4938) | enum AVPixelFormat
type AVPixelFormat (line 4938) | enum AVPixelFormat
type AVPixelFormat (line 4939) | enum AVPixelFormat
type AVPixelFormat (line 4943) | enum AVPixelFormat
type AVCodecContext (line 4943) | struct AVCodecContext
type AVPixelFormat (line 4943) | enum AVPixelFormat
type AVSampleFormat (line 5007) | enum AVSampleFormat
type AVCodecID (line 5027) | enum AVCodecID
type AVCodecID (line 5035) | enum AVCodecID
type AVSampleFormat (line 5035) | enum AVSampleFormat
type AVCodecID (line 5045) | enum AVCodecID
type AVBitStreamFilterContext (line 5058) | typedef struct AVBitStreamFilterContext {
type AVBitStreamFilter (line 5066) | typedef struct AVBitStreamFilter {
type AVLockOp (line 5223) | enum AVLockOp {
type AVLockOp (line 5253) | enum AVLockOp
type AVMediaType (line 5258) | enum AVMediaType
type AVCodecID (line 5258) | enum AVCodecID
type AVCodecID (line 5264) | enum AVCodecID
type AVCodecID (line 5285) | enum AVCodecID
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/avfft.h
type FFTSample (line 35) | typedef float FFTSample;
type FFTComplex (line 37) | typedef struct FFTComplex {
type FFTContext (line 41) | typedef struct FFTContext FFTContext;
type RDFTransformType (line 71) | enum RDFTransformType {
type RDFTContext (line 78) | typedef struct RDFTContext RDFTContext;
type RDFTransformType (line 85) | enum RDFTransformType
type DCTContext (line 91) | typedef struct DCTContext DCTContext;
type DCTTransformType (line 93) | enum DCTTransformType {
type DCTTransformType (line 110) | enum DCTTransformType
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/dv_profile.h
type AVDVProfile (line 39) | typedef struct AVDVProfile {
type AVPixelFormat (line 84) | enum AVPixelFormat
type AVPixelFormat (line 90) | enum AVPixelFormat
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/dxva2.h
type dxva_context (line 57) | struct dxva_context {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/qsv.h
type AVQSVContext (line 26) | typedef struct AVQSVContext {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/vaapi.h
type vaapi_context (line 50) | struct vaapi_context {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/vda.h
type vda_context (line 65) | struct vda_context {
type vda_context (line 150) | struct vda_context
type vda_context (line 155) | struct vda_context
type AVVDAContext (line 163) | typedef struct AVVDAContext {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/vdpau.h
type AVCodecContext (line 69) | struct AVCodecContext
type AVFrame (line 70) | struct AVFrame
type AVCodecContext (line 72) | struct AVCodecContext
type AVFrame (line 72) | struct AVFrame
type AVVDPAUContext (line 90) | typedef struct AVVDPAUContext {
type vdpau_render_state (line 229) | struct vdpau_render_state {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/vorbis_parser.h
type AVVorbisParseContext (line 32) | typedef struct AVVorbisParseContext AVVorbisParseContext;
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/xvmc.h
function attribute_deprecated (line 46) | attribute_deprecated struct xvmc_pix_fmt {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavdevice/avdevice.h
type AVDeviceRect (line 108) | typedef struct AVDeviceRect {
type AVAppToDevMessageType (line 118) | enum AVAppToDevMessageType {
type AVDevToAppMessageType (line 197) | enum AVDevToAppMessageType {
type AVFormatContext (line 305) | struct AVFormatContext
type AVAppToDevMessageType (line 306) | enum AVAppToDevMessageType
type AVFormatContext (line 319) | struct AVFormatContext
type AVDevToAppMessageType (line 320) | enum AVDevToAppMessageType
type AVDeviceCapabilitiesQuery (line 399) | typedef struct AVDeviceCapabilitiesQuery {
type AVDeviceInfo (line 451) | typedef struct AVDeviceInfo {
type AVDeviceInfoList (line 459) | typedef struct AVDeviceInfoList {
type AVFormatContext (line 478) | struct AVFormatContext
type AVInputFormat (line 504) | struct AVInputFormat
type AVOutputFormat (line 506) | struct AVOutputFormat
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavfilter/avcodec.h
type AVMediaType (line 64) | enum AVMediaType
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavfilter/avfilter.h
type AVFilterContext (line 64) | typedef struct AVFilterContext AVFilterContext;
type AVFilterLink (line 65) | typedef struct AVFilterLink AVFilterLink;
type AVFilterPad (line 66) | typedef struct AVFilterPad AVFilterPad;
type AVFilterFormats (line 67) | typedef struct AVFilterFormats AVFilterFormats;
type AVFilterBuffer (line 75) | typedef struct AVFilterBuffer {
type AVFilterBufferRefAudioProps (line 125) | typedef struct AVFilterBufferRefAudioProps {
type AVFilterBufferRefVideoProps (line 137) | typedef struct AVFilterBufferRefVideoProps {
type AVFilterBufferRef (line 158) | typedef struct AVFilterBufferRef {
type AVFilterPad (line 256) | struct AVFilterPad {
type AVMediaType (line 424) | enum AVMediaType
type AVFilter (line 470) | typedef struct AVFilter {
type AVFilterInternal (line 630) | typedef struct AVFilterInternal AVFilterInternal;
type AVFilterContext (line 633) | struct AVFilterContext {
type AVFilterLink (line 696) | struct AVFilterLink {
type AVPixelFormat (line 915) | enum AVPixelFormat
type AVSampleFormat (line 936) | enum AVSampleFormat
type AVSampleFormat (line 956) | enum AVSampleFormat
type AVFilterGraphInternal (line 1136) | typedef struct AVFilterGraphInternal AVFilterGraphInternal;
type AVFilterGraph (line 1167) | typedef struct AVFilterGraph {
type AVFilterInOut (line 1349) | typedef struct AVFilterInOut {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavfilter/buffersink.h
type AVBufferSinkParams (line 122) | typedef struct {
type AVABufferSinkParams (line 136) | typedef struct {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavformat/avformat.h
type AVFormatContext (line 266) | struct AVFormatContext
type AVDeviceInfoList (line 268) | struct AVDeviceInfoList
type AVDeviceCapabilitiesQuery (line 269) | struct AVDeviceCapabilitiesQuery
type AVFrac (line 388) | typedef struct AVFrac {
type AVCodecTag (line 396) | struct AVCodecTag
type AVProbeData (line 401) | typedef struct AVProbeData {
type AVOutputFormat (line 457) | typedef struct AVOutputFormat {
type AVInputFormat (line 568) | typedef struct AVInputFormat {
type AVStreamParseType (line 717) | enum AVStreamParseType {
type AVIndexEntry (line 728) | typedef struct AVIndexEntry {
type AVStream (line 787) | typedef struct AVStream {
type AVCodecParserContext (line 1122) | struct AVCodecParserContext
type AVProgram (line 1141) | typedef struct AVProgram {
type AVChapter (line 1170) | typedef struct AVChapter {
type AVFormatContext (line 1181) | struct AVFormatContext
type AVDurationEstimationMethod (line 1189) | enum AVDurationEstimationMethod {
type AVFormatInternal (line 1195) | typedef struct AVFormatInternal AVFormatInternal;
type AVFormatContext (line 1205) | typedef struct AVFormatContext {
type AVDurationEstimationMethod (line 1755) | enum AVDurationEstimationMethod
type AVPacketList (line 1757) | typedef struct AVPacketList {
type AVPacketSideDataType (line 1880) | enum AVPacketSideDataType
type AVMediaType (line 2061) | enum AVMediaType
type AVCodecID (line 2340) | enum AVCodecID
type AVMediaType (line 2342) | enum AVMediaType
type AVFormatContext (line 2359) | struct AVFormatContext
type AVCodecID (line 2435) | enum AVCodecID
type AVCodecTag (line 2435) | struct AVCodecTag
type AVCodecTag (line 2445) | struct AVCodecTag
type AVCodecID (line 2445) | enum AVCodecID
type AVCodecTag (line 2456) | struct AVCodecTag
type AVCodecID (line 2456) | enum AVCodecID
type AVCodecID (line 2587) | enum AVCodecID
type AVCodecTag (line 2605) | struct AVCodecTag
type AVCodecTag (line 2609) | struct AVCodecTag
type AVCodecTag (line 2613) | struct AVCodecTag
type AVCodecTag (line 2617) | struct AVCodecTag
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavformat/avio.h
type AVIOInterruptCB (line 51) | typedef struct AVIOInterruptCB {
type AVIOContext (line 68) | typedef struct AVIOContext {
function av_always_inline (line 273) | static av_always_inline int64_t avio_tell(AVIOContext *s)
type AVBPrint (line 524) | struct AVBPrint
type AVBPrint (line 532) | struct AVBPrint
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/aes.h
type AVAES (line 37) | struct AVAES
type AVAES (line 42) | struct AVAES
type AVAES (line 49) | struct AVAES
type AVAES (line 59) | struct AVAES
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/audio_fifo.h
type AVAudioFifo (line 49) | typedef struct AVAudioFifo AVAudioFifo;
type AVSampleFormat (line 66) | enum AVSampleFormat
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/avstring.h
function av_strnlen (line 140) | static inline size_t av_strnlen(const char *s, size_t len)
function av_const (line 221) | static inline av_const int av_toupper(int c)
function av_const (line 231) | static inline av_const int av_tolower(int c)
type AVEscapeMode (line 279) | enum AVEscapeMode {
type AVEscapeMode (line 319) | enum AVEscapeMode
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/avutil.h
type AVMediaType (line 192) | enum AVMediaType {
type AVMediaType (line 206) | enum AVMediaType
type AVPictureType (line 265) | enum AVPictureType {
type AVPictureType (line 283) | enum AVPictureType
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/blowfish.h
type AVBlowfish (line 35) | typedef struct AVBlowfish {
type AVBlowfish (line 47) | struct AVBlowfish
type AVBlowfish (line 57) | struct AVBlowfish
type AVBlowfish (line 70) | struct AVBlowfish
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/bprint.h
type tm (line 148) | struct tm
type tm (line 160) | struct tm
function av_bprint_is_complete (line 185) | static inline int av_bprint_is_complete(const AVBPrint *buf)
type AVEscapeMode (line 217) | enum AVEscapeMode
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/bswap.h
function av_bswap16 (line 58) | uint16_t av_bswap16(uint16_t x)
function av_bswap32 (line 66) | uint32_t av_bswap32(uint32_t x)
function av_bswap64 (line 73) | static inline uint64_t av_const av_bswap64(uint64_t x)
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/buffer.h
type AVBuffer (line 73) | typedef struct AVBuffer AVBuffer;
type AVBufferRef (line 81) | typedef struct AVBufferRef {
type AVBufferPool (line 238) | typedef struct AVBufferPool AVBufferPool;
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/camellia.h
type AVCAMELLIA (line 38) | struct AVCAMELLIA
type AVCAMELLIA (line 44) | struct AVCAMELLIA
type AVCAMELLIA (line 53) | struct AVCAMELLIA
type AVCAMELLIA (line 65) | struct AVCAMELLIA
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/cast5.h
type AVCAST5 (line 38) | struct AVCAST5
type AVCAST5 (line 44) | struct AVCAST5
type AVCAST5 (line 52) | struct AVCAST5
type AVCAST5 (line 63) | struct AVCAST5
type AVCAST5 (line 75) | struct AVCAST5
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/channel_layout.h
type AVMatrixEncoding (line 113) | enum AVMatrixEncoding {
type AVBPrint (line 157) | struct AVBPrint
type AVBPrint (line 161) | struct AVBPrint
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/common.h
function av_clip_c (line 105) | int av_clip_c(int a, int amin, int amax)
function av_clip64_c (line 122) | int64_t av_clip64_c(int64_t a, int64_t amin, int64_t amax)
function av_clip_uint8_c (line 137) | uint8_t av_clip_uint8_c(int a)
function av_clip_int8_c (line 148) | int8_t av_clip_int8_c(int a)
function av_clip_uint16_c (line 159) | uint16_t av_clip_uint16_c(int a)
function av_clip_int16_c (line 170) | int16_t av_clip_int16_c(int a)
function av_clipl_int32_c (line 181) | int32_t av_clipl_int32_c(int64_t a)
function av_clip_intp2_c (line 193) | int av_clip_intp2_c(int a, int p)
function av_clip_uintp2_c (line 207) | unsigned av_clip_uintp2_c(int a, int p)
function av_always_inline (line 220) | static av_always_inline int av_sat_add32_c(int a, int b)
function av_always_inline (line 232) | static av_always_inline int av_sat_dadd32_c(int a, int b)
function av_clipf_c (line 244) | float av_clipf_c(float a, float amin, float amax)
function av_clipd_c (line 261) | double av_clipd_c(double a, double amin, double amax)
function av_ceil_log2_c (line 275) | int av_ceil_log2_c(int x)
function av_popcount_c (line 285) | int av_popcount_c(uint32_t x)
function av_popcount64_c (line 299) | int av_popcount64_c(uint64_t x)
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/crc.h
type AVCRC (line 34) | typedef uint32_t AVCRC;
type AVCRCId (line 36) | typedef enum {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/dict.h
type AVDictionaryEntry (line 82) | typedef struct AVDictionaryEntry {
type AVDictionary (line 87) | typedef struct AVDictionary AVDictionary;
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/downmix_info.h
type AVDownmixType (line 44) | enum AVDownmixType {
type AVDownmixInfo (line 58) | typedef struct AVDownmixInfo {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/eval.h
type AVExpr (line 31) | typedef struct AVExpr AVExpr;
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/fifo.h
type AVFifoBuffer (line 31) | typedef struct AVFifoBuffer {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/frame.h
type AVFrameSideDataType (line 48) | enum AVFrameSideDataType {
type AVActiveFormatDescription (line 117) | enum AVActiveFormatDescription {
type AVFrameSideData (line 127) | typedef struct AVFrameSideData {
type AVFrame (line 163) | typedef struct AVFrame {
type AVColorSpace (line 601) | enum AVColorSpace
type AVColorSpace (line 602) | enum AVColorSpace
type AVColorRange (line 603) | enum AVColorRange
type AVColorRange (line 604) | enum AVColorRange
type AVColorSpace (line 610) | enum AVColorSpace
type AVFrameSideDataType (line 754) | enum AVFrameSideDataType
type AVFrameSideDataType (line 762) | enum AVFrameSideDataType
type AVFrameSideDataType (line 768) | enum AVFrameSideDataType
type AVFrameSideDataType (line 773) | enum AVFrameSideDataType
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/hash.h
type AVHashContext (line 26) | struct AVHashContext
type AVHashContext (line 34) | struct AVHashContext
type AVHashContext (line 49) | struct AVHashContext
type AVHashContext (line 68) | struct AVHashContext
type AVHashContext (line 73) | struct AVHashContext
type AVHashContext (line 78) | struct AVHashContext
type AVHashContext (line 83) | struct AVHashContext
type AVHashContext (line 90) | struct AVHashContext
type AVHashContext (line 97) | struct AVHashContext
type AVHashContext (line 105) | struct AVHashContext
type AVHashContext (line 110) | struct AVHashContext
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/hmac.h
type AVHMACType (line 32) | enum AVHMACType {
type AVHMAC (line 41) | typedef struct AVHMAC AVHMAC;
type AVHMACType (line 47) | enum AVHMACType
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/imgutils.h
type AVPixelFormat (line 59) | enum AVPixelFormat
type AVPixelFormat (line 68) | enum AVPixelFormat
type AVPixelFormat (line 81) | enum AVPixelFormat
type AVPixelFormat (line 95) | enum AVPixelFormat
type AVPixelFormat (line 121) | enum AVPixelFormat
type AVPixelFormat (line 151) | enum AVPixelFormat
type AVPixelFormat (line 159) | enum AVPixelFormat
type AVPixelFormat (line 180) | enum AVPixelFormat
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/intfloat.h
function av_always_inline (line 40) | static av_always_inline float av_int2float(uint32_t i)
function av_always_inline (line 50) | static av_always_inline uint32_t av_float2int(float f)
function av_always_inline (line 60) | static av_always_inline double av_int2double(uint64_t i)
function av_always_inline (line 70) | static av_always_inline uint64_t av_double2int(double f)
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/intreadwrite.h
type av_alias64 (line 27) | typedef union {
type av_alias32 (line 36) | typedef union {
type av_alias16 (line 43) | typedef union {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/lfg.h
type AVLFG (line 25) | typedef struct AVLFG {
function av_lfg_get (line 38) | static inline unsigned int av_lfg_get(AVLFG *c){
function av_mlfg_get (line 48) | static inline unsigned int av_mlfg_get(AVLFG *c){
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/log.h
type AVClassCategory (line 28) | typedef enum {
type AVOptionRanges (line 59) | struct AVOptionRanges
type AVClass (line 66) | typedef struct AVClass {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/mathematics.h
type AVRounding (line 70) | enum AVRounding {
type AVRounding (line 99) | enum AVRounding
type AVRounding (line 113) | enum AVRounding
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/md5.h
type AVMD5 (line 37) | struct AVMD5
type AVMD5 (line 42) | struct AVMD5
type AVMD5 (line 49) | struct AVMD5
type AVMD5 (line 58) | struct AVMD5
type AVMD5 (line 66) | struct AVMD5
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/mem.h
function av_size_mult (line 337) | static inline int av_size_mult(size_t a, size_t b, size_t *r)
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/motion_vector.h
type AVMotionVector (line 24) | typedef struct AVMotionVector {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/murmur3.h
type AVMurMur3 (line 26) | struct AVMurMur3
type AVMurMur3 (line 27) | struct AVMurMur3
type AVMurMur3 (line 28) | struct AVMurMur3
type AVMurMur3 (line 29) | struct AVMurMur3
type AVMurMur3 (line 30) | struct AVMurMur3
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/opt.h
type AVOptionType (line 221) | enum AVOptionType{
type AVOption (line 255) | typedef struct AVOption {
type AVOptionRange (line 316) | typedef struct AVOptionRange {
type AVOptionRanges (line 339) | typedef struct AVOptionRanges {
type AVDictionary (line 525) | struct AVDictionary
type AVDictionary (line 543) | struct AVDictionary
type AVPixelFormat (line 727) | enum AVPixelFormat
type AVSampleFormat (line 728) | enum AVSampleFormat
type AVPixelFormat (line 777) | enum AVPixelFormat
type AVSampleFormat (line 778) | enum AVSampleFormat
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/parseutils.h
type tm (line 172) | struct tm
type tm (line 185) | struct tm
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/pixdesc.h
type AVComponentDescriptor (line 30) | typedef struct AVComponentDescriptor {
type AVPixFmtDescriptor (line 69) | typedef struct AVPixFmtDescriptor {
type AVPixelFormat (line 228) | enum AVPixelFormat
type AVPixelFormat (line 236) | enum AVPixelFormat
type AVPixelFormat (line 249) | enum AVPixelFormat
type AVPixelFormat (line 272) | enum AVPixelFormat
type AVPixelFormat (line 287) | enum AVPixelFormat
type AVPixelFormat (line 304) | enum AVPixelFormat
type AVPixelFormat (line 311) | enum AVPixelFormat
type AVPixelFormat (line 321) | enum AVPixelFormat
type AVPixelFormat (line 321) | enum AVPixelFormat
type AVPixelFormat (line 348) | enum AVPixelFormat
type AVPixelFormat (line 349) | enum AVPixelFormat
type AVPixelFormat (line 370) | enum AVPixelFormat
type AVPixelFormat (line 370) | enum AVPixelFormat
type AVPixelFormat (line 370) | enum AVPixelFormat
type AVPixelFormat (line 371) | enum AVPixelFormat
type AVColorRange (line 376) | enum AVColorRange
type AVColorPrimaries (line 381) | enum AVColorPrimaries
type AVColorTransferCharacteristic (line 386) | enum AVColorTransferCharacteristic
type AVColorSpace (line 391) | enum AVColorSpace
type AVChromaLocation (line 396) | enum AVChromaLocation
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/pixfmt.h
type AVPixelFormat (line 66) | enum AVPixelFormat {
type AVColorPrimaries (line 451) | enum AVColorPrimaries {
type AVColorTransferCharacteristic (line 469) | enum AVColorTransferCharacteristic {
type AVColorSpace (line 492) | enum AVColorSpace {
type AVColorRange (line 512) | enum AVColorRange {
type AVChromaLocation (line 526) | enum AVChromaLocation {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/rational.h
type AVRational (line 43) | typedef struct AVRational{
function AVRational (line 53) | static inline AVRational av_make_q(int num, int den)
function av_cmp_q (line 66) | static inline int av_cmp_q(AVRational a, AVRational b){
function av_q2d (line 80) | static inline double av_q2d(AVRational a){
function av_always_inline (line 133) | static av_always_inline AVRational av_inv_q(AVRational q)
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/replaygain.h
type AVReplayGain (line 30) | typedef struct AVReplayGain {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/ripemd.h
type AVRIPEMD (line 38) | struct AVRIPEMD
type AVRIPEMD (line 43) | struct AVRIPEMD
type AVRIPEMD (line 52) | struct AVRIPEMD
type AVRIPEMD (line 61) | struct AVRIPEMD
type AVRIPEMD (line 69) | struct AVRIPEMD
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/samplefmt.h
type AVSampleFormat (line 59) | enum AVSampleFormat {
type AVSampleFormat (line 80) | enum AVSampleFormat
type AVSampleFormat (line 86) | enum AVSampleFormat
type AVSampleFormat (line 94) | enum AVSampleFormat
type AVSampleFormat (line 94) | enum AVSampleFormat
type AVSampleFormat (line 105) | enum AVSampleFormat
type AVSampleFormat (line 105) | enum AVSampleFormat
type AVSampleFormat (line 116) | enum AVSampleFormat
type AVSampleFormat (line 116) | enum AVSampleFormat
type AVSampleFormat (line 130) | enum AVSampleFormat
type AVSampleFormat (line 139) | enum AVSampleFormat
type AVSampleFormat (line 147) | enum AVSampleFormat
type AVSampleFormat (line 160) | enum AVSampleFormat
type AVSampleFormat (line 204) | enum AVSampleFormat
type AVSampleFormat (line 226) | enum AVSampleFormat
type AVSampleFormat (line 238) | enum AVSampleFormat
type AVSampleFormat (line 253) | enum AVSampleFormat
type AVSampleFormat (line 265) | enum AVSampleFormat
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/sha.h
type AVSHA (line 37) | struct AVSHA
type AVSHA (line 42) | struct AVSHA
type AVSHA (line 51) | struct AVSHA
type AVSHA (line 60) | struct AVSHA
type AVSHA (line 68) | struct AVSHA
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/sha512.h
type AVSHA512 (line 38) | struct AVSHA512
type AVSHA512 (line 43) | struct AVSHA512
type AVSHA512 (line 52) | struct AVSHA512
type AVSHA512 (line 61) | struct AVSHA512
type AVSHA512 (line 69) | struct AVSHA512
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/stereo3d.h
type AVStereo3DType (line 31) | enum AVStereo3DType {
type AVStereo3D (line 123) | typedef struct AVStereo3D {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/threadmessage.h
type AVThreadMessageQueue (line 22) | typedef struct AVThreadMessageQueue AVThreadMessageQueue;
type AVThreadMessageFlags (line 24) | typedef enum AVThreadMessageFlags {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/timecode.h
type AVTimecodeFlag (line 35) | enum AVTimecodeFlag {
type AVTimecode (line 41) | typedef struct {
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/twofish.h
type AVTWOFISH (line 38) | struct AVTWOFISH
type AVTWOFISH (line 44) | struct AVTWOFISH
type AVTWOFISH (line 53) | struct AVTWOFISH
type AVTWOFISH (line 65) | struct AVTWOFISH
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/xtea.h
type AVXTEA (line 35) | typedef struct AVXTEA {
type AVXTEA (line 45) | struct AVXTEA
type AVXTEA (line 57) | struct AVXTEA
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libswresample/swresample.h
type SwrDitherType (line 145) | enum SwrDitherType {
type SwrEngine (line 163) | enum SwrEngine {
type SwrFilterType (line 170) | enum SwrFilterType {
type SwrContext (line 186) | typedef struct SwrContext SwrContext;
type SwrContext (line 211) | struct SwrContext
type SwrContext (line 223) | struct SwrContext
type SwrContext (line 232) | struct SwrContext
type SwrContext (line 254) | struct SwrContext
type SwrContext (line 254) | struct SwrContext
type AVSampleFormat (line 255) | enum AVSampleFormat
type AVSampleFormat (line 256) | enum AVSampleFormat
type SwrContext (line 271) | struct SwrContext
type SwrContext (line 283) | struct SwrContext
type SwrContext (line 309) | struct SwrContext
type SwrContext (line 329) | struct SwrContext
type SwrContext (line 356) | struct SwrContext
type SwrContext (line 366) | struct SwrContext
type SwrContext (line 377) | struct SwrContext
type SwrContext (line 397) | struct SwrContext
type SwrContext (line 410) | struct SwrContext
type SwrContext (line 436) | struct SwrContext
FILE: DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libswscale/swscale.h
type SwsVector (line 122) | typedef struct SwsVector {
type SwsFilter (line 128) | typedef struct SwsFilter {
type SwsContext (line 135) | struct SwsContext
type AVPixelFormat (line 141) | enum AVPixelFormat
type AVPixelFormat (line 147) | enum AVPixelFormat
type AVPixelFormat (line 154) | enum AVPixelFormat
type SwsContext (line 161) | struct SwsContext
type SwsContext (line 169) | struct SwsContext
type SwsContext (line 175) | struct SwsContext
type SwsContext (line 192) | struct SwsContext
type AVPixelFormat (line 192) | enum AVPixelFormat
type AVPixelFormat (line 193) | enum AVPixelFormat
type SwsContext (line 223) | struct SwsContext
type SwsContext (line 237) | struct SwsContext
type SwsContext (line 244) | struct SwsContext
type SwsContext (line 317) | struct SwsContext
type SwsContext (line 317) | struct SwsContext
type AVPixelFormat (line 318) | enum AVPixelFormat
type AVPixelFormat (line 319) | enum AVPixelFormat
Condensed preview — 122 files, each showing path, character count, and a content snippet. Download the .json file or copy for the full structured content (1,045K chars).
[
{
"path": ".gitignore",
"chars": 232,
"preview": "# Xcode\n.DS_Store\nbuild/\n*.pbxuser\n!default.pbxuser\n*.mode1v3\n!default.mode1v3\n*.mode2v3\n!default.mode2v3\n*.perspectivev"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/DFUAppDelegate.h",
"chars": 385,
"preview": "//\n// DFUAppDelegate.h\n// DFURTSPPlayer\n//\n// Created by Bogdan Furdui on 3/7/13.\n// Copyright (c) 2013 Bogdan Furdu"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/DFUAppDelegate.m",
"chars": 2695,
"preview": "//\n// DFUAppDelegate.m\n// DFURTSPPlayer\n//\n// Created by Bogdan Furdui on 3/7/13.\n// Copyright (c) 2013 Bogdan Furdu"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/DFURTSPPlayer-Info.plist",
"chars": 1522,
"preview": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<!DOCTYPE plist PUBLIC \"-//Apple//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/P"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/DFURTSPPlayer-Prefix.pch",
"chars": 329,
"preview": "//\n// Prefix header for all source files of the 'DFURTSPPlayer' target in the 'DFURTSPPlayer' project\n//\n\n#import <Avail"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/DFUViewController.h",
"chars": 698,
"preview": "//\n// DFUViewController.h\n// DFURTSPPlayer\n//\n// Created by Bogdan Furdui on 3/7/13.\n// Copyright (c) 2013 Bogdan Fu"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/DFUViewController.m",
"chars": 3019,
"preview": "//\n// DFUViewController.m\n// DFURTSPPlayer\n//\n// Created by Bogdan Furdui on 3/7/13.\n// Copyright (c) 2013 Bogdan Fu"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/AudioStreamer.h",
"chars": 1190,
"preview": "#import <UIKit/UIKit.h>\n#import <AudioToolbox/AudioToolbox.h>\n#import <AVFoundation/AVFoundation.h>\n#import \"RTSPPlayer."
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/AudioStreamer.m",
"chars": 9592,
"preview": "#import \"AudioStreamer.h\"\n#import \"RTSPPlayer.h\"\n\nvoid audioQueueOutputCallback(void *inClientData, AudioQueueRef inAQ,\n"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/RTSPPlayer.h",
"chars": 2048,
"preview": "#import <Foundation/Foundation.h>\n#import \"avformat.h\"\n#import \"avcodec.h\"\n#import \"avio.h\"\n#import \"swscale.h\"\n#import "
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/RTSPPlayer.m",
"chars": 10549,
"preview": "#import \"RTSPPlayer.h\"\n#import \"Utilities.h\"\n#import \"AudioStreamer.h\"\n\n#ifndef AVCODEC_MAX_AUDIO_FRAME_SIZE\n# define AV"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/Utilities.h",
"chars": 855,
"preview": "//\n// Utilities.h\n// iFrameExtractor\n//\n// Created by lajos on 1/10/10.\n//\n// Copyright 2010 Lajos Kamocsay\n//\n// l"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegDecoder/Utilities.m",
"chars": 1152,
"preview": "//\n// Utilities.m\n// iFrameExtractor\n//\n// Created by lajos on 1/10/10.\n//\n// Copyright 2010 Lajos Kamocsay\n//\n// l"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/avcodec.h",
"chars": 181469,
"preview": "/*\n * copyright (c) 2001 Fabrice Bellard\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redis"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/avfft.h",
"chars": 3111,
"preview": "/*\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribute it and/or\n * modify it under the "
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/dv_profile.h",
"chars": 3998,
"preview": "/*\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribute it and/or\n * modify it under the "
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/dxva2.h",
"chars": 2358,
"preview": "/*\n * DXVA2 HW acceleration\n *\n * copyright (c) 2009 Laurent Aimar\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is fr"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/old_codec_ids.h",
"chars": 10623,
"preview": "/*\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribute it and/or\n * modify it under the "
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/qsv.h",
"chars": 1185,
"preview": "/*\n * Intel MediaSDK QSV public API\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribu"
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/vaapi.h",
"chars": 4007,
"preview": "/*\n * Video Acceleration API (shared data between FFmpeg and the video player)\n * HW decode acceleration for MPEG-2, MPE"
},
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/vda.h",
"chars": 5437,
"preview": "/*\n * VDA HW acceleration\n *\n * copyright (c) 2011 Sebastien Zwickert\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is"
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/vdpau.h",
"chars": 7972,
"preview": "/*\n * The Video Decode and Presentation API for UNIX (VDPAU) is used for\n * hardware-accelerated decoding of MPEG-1/2, H"
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"chars": 6543,
"preview": "/*\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribute it and/or\n * modify it under t"
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/vorbis_parser.h",
"chars": 2356,
"preview": "/*\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribute it and/or\n * modify it under t"
},
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavcodec/xvmc.h",
"chars": 6062,
"preview": "/*\n * Copyright (C) 2003 Ivan Kalvachev\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redist"
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavdevice/avdevice.h",
"chars": 17923,
"preview": "/*\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribute it and/or\n * modify it under the "
},
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavdevice/version.h",
"chars": 1859,
"preview": "/*\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribute it and/or\n * modify it under the "
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavfilter/asrc_abuffer.h",
"chars": 3321,
"preview": "/*\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribute it and/or\n * modify it under the "
},
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavfilter/avcodec.h",
"chars": 2390,
"preview": "/*\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribute it and/or\n * modify it under the "
},
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavfilter/avfilter.h",
"chars": 57082,
"preview": "/*\n * filter layer\n * Copyright (c) 2007 Bobby Bingham\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software;"
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"preview": "/*\n * Filter graphs\n * copyright (c) 2007 Bobby Bingham\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software"
},
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"preview": "/*\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribute it and/or\n * modify it under the "
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"chars": 2919,
"preview": "/*\n * Version macros.\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribute it and/or\n "
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"preview": "/*\n * Version macros.\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistribute it and/or\n "
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/adler32.h",
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"preview": "/*\n * copyright (c) 2006 Mans Rullgard\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free software; you can redistr"
},
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/aes.h",
"chars": 1834,
"preview": "/*\n * copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at>\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free "
},
{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/attributes.h",
"chars": 4236,
"preview": "/*\n * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free "
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/audio_fifo.h",
"chars": 4475,
"preview": "/*\n * Audio FIFO\n * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>\n *\n * This file is part of FFmpeg.\n *\n "
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{
"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/audioconvert.h",
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},
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"path": "DFURTSPPlayer/DFURTSPPlayer/FFMpegiOS/include/libavutil/avassert.h",
"chars": 2113,
"preview": "/*\n * copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at>\n *\n * This file is part of FFmpeg.\n *\n * FFmpeg is free "
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"preview": "DFURTSPPlayer\n=============\n\nRTSP player for iOS with ffmpeg.\nThis project uses slightly modified classes from \"mooncatv"
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]
// ... and 7 more files (download for full content)
About this extraction
This page contains the full source code of the durfu/DFURTSPPlayer GitHub repository, extracted and formatted as plain text for AI agents and large language models (LLMs). The extraction includes 122 files (62.8 MB), approximately 265.7k tokens, and a symbol index with 453 extracted functions, classes, methods, constants, and types. Use this with OpenClaw, Claude, ChatGPT, Cursor, Windsurf, or any other AI tool that accepts text input. You can copy the full output to your clipboard or download it as a .txt file.
Extracted by GitExtract — free GitHub repo to text converter for AI. Built by Nikandr Surkov.