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James Almer 7b9610ebd8 avcodec/decode: add an internal codec flag to signal a decoder sets all output frame properties Decoders like cuviddec ignore and overwrite all the properties set by the generic code as derived from AVCodecInternal.last_pkt_props. This flag ensures libavcodec will not store and potentially queue input packets that ultimately will not be used. Signed-off-by: James Almer <jamrial@gmail.com>		3 years ago
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fftools	ffmpeg: silence a thread_safe_callbacks deprecation warning	3 years ago
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libavfilter	lavfi/vf_vpp_qsv: fix the time_base for outlink	3 years ago
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libavutil	avutil/tx: avoid negative left shifts	3 years ago
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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.