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James Almer 828b0da7b7 avcodec/aacdec: refactor the channel layout derivation code 
Generalize the checks for channels in all positions, and properly support
the three height groups (normal, top, bottom) instead of manually setting
the relevant channels for the latter two after the normal height tags were
parsed.

Signed-off-by: James Almer <jamrial@gmail.com>
2022-11-03 19:39:52 -03:00
compat
doc avutil/channel_layout: add a 7.1(top) channel layout 2022-11-03 19:39:45 -03:00
ffbuild configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
fftools ffmpeg: fix implementation of updated input start time 2022-11-03 14:38:42 +05:30
libavcodec avcodec/aacdec: refactor the channel layout derivation code 2022-11-03 19:39:52 -03:00
libavdevice avdevice/avdevice: Fix mismatching argument name 2022-10-17 09:51:47 +02:00
libavfilter avfilter/src_movie: support unknown channel layouts 2022-11-02 10:53:44 +01:00
libavformat avformat/serdec: fix BE/LE format handling 2022-11-03 16:59:18 +01:00
libavutil avutil/channel_layout: add a 7.1(top) channel layout 2022-11-03 19:39:45 -03:00
libpostproc
libswresample swresample/rematrix: support mixing top front left/right channels 2022-11-03 19:39:52 -03:00
libswscale sw_scale: Add specializations for hscale 16 to 19 2022-11-01 15:24:58 +02:00
presets
tests avutil/channel_layout: add a 7.1(top) channel layout 2022-11-03 19:39:45 -03:00
tools tools/target_dec_fuzzer: Adjust threshold for FFV1 2022-10-20 21:42:21 +02:00
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Changelog avcodec: ViewQuest VQC decoder 2022-10-18 13:20:37 +11:00
configure configure: add pkg-config check for chromaprint 2022-11-03 12:37:41 +01:00
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Makefile configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
README.md
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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.