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Anton Khirnov 3f11582ca3 fftools/ffmpeg_mux: stop using filter_in_rescale_delta_last for streamcopy 
That field was added to store timestamp conversion state for audio
decoding code. Later it started being used by streamcopy as well, but
that use is wrong because, for a given input stream, both decoding and
an arbitrary number of streamcopies may be performed simultaneously.
They would then all overwrite the same state variable.

Store this state in MuxStream instead.

This is the last use of InputStream in of_streamcopy(), so the ist
parameter can now be removed.
2023-04-17 12:01:40 +02:00
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doc avutil: make av_frame_get_plane_buffer accept a const AVFrame* 2023-04-14 10:53:28 +02:00
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fftools fftools/ffmpeg_mux: stop using filter_in_rescale_delta_last for streamcopy 2023-04-17 12:01:40 +02:00
libavcodec vaapi: support VAProfileH264High10 encoding 2023-04-17 15:11:22 +08:00
libavdevice avdevice/decklink_enc: Add support for compressed AC-3 output over SDI 2023-04-08 20:08:18 +02:00
libavfilter lavfi/unsharp: clarify invalid filter param constraints 2023-04-02 17:07:51 +02:00
libavformat avformat/flvenc: avoid an extra allocate 2023-04-15 04:21:33 +08:00
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tests fftools/ffmpeg: stop using fake dts for generating timestamps 2023-04-13 15:34:07 +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 means to alter decoded audio and video through a directed graph of connected 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.