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cdd6f059a6
avcodec, avutil: allow more control about how samples are skipped
Add CODEC_FLAG2_SKIP_MANUAL (exposed as "skip_manual"), which makes the decoder export sample skip information via side data, instead of applying it automatically. The format of the side data is the same as AV_PKT_DATA_SKIP_SAMPLES, but since AVPacket and AVFrame side data constants overlap, AV_FRAME_DATA_SKIP_SAMPLES needs to be introduced. This is useful for applications which want to do the timestamp calculations manually, or which actually want to retrieve the padding. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodec
provides implementation of a wider range of codecs.libavformat
implements streaming protocols, container formats and basic I/O access.libavutil
includes hashers, decompressors and miscellaneous utility functions.libavfilter
provides a mean to alter decoded Audio and Video through chain of filters.libavdevice
provides an abstraction to access capture and playback devices.libswresample
implements audio mixing and resampling routines.libswscale
implements color conversion and scaling routines.
Tools
- ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
- ffplay is a minimalistic multimedia player.
- ffprobe is a simple analisys tool to inspect multimedia content.
- Additional small tools such as
aviocat
,ismindex
andqt-faststart
.
Documentation
The offline documentation is available in the doc/ directory.
The online documentation is available in the main website and in the wiki.
Examples
Conding examples are available in the doc/example directory.
License
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
Languages
C
90.3%
Assembly
7.8%
Makefile
1.3%
C++
0.2%
Objective-C
0.2%
Other
0.1%