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Andreas Rheinhardt c6e54d14c5 avcodec/utils: Improve check for freeing codec private options Don't check for AVCodec.priv_data_size (which is always true if AVCodec.priv_class is set). Instead check for AVCodecContext.priv_data to actually exist. (Note: av_opt_free(NULL) is a no-op.) Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>		2020-10-01 13:18:18 +02:00
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libavcodec	avcodec/utils: Improve check for freeing codec private options	2020-10-01 13:18:18 +02:00
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libswresample	swresample/audioconvert: Fix left shift of negative value	2020-09-30 10:50:45 +02:00
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tests	fate: add scale filters for big-endian architectures.	2020-09-30 16:39:34 +02:00
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README.md

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 analysis tool to inspect multimedia content.
Additional small tools such as aviocat, ismindex and qt-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

Coding examples are available in the doc/examples directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.