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Anton Khirnov 3bd7c57125 fftools/ffmpeg_filter: implement filtergraph chaining 
This allows one complex filtergraph's output to be sent as input to
another one, which is useful in certain situations (one is described in
the docs).

Chaining filtergraphs was already effectively possible by using a
wrapped_avframe encoder connected to a loopback decoder, but it is ugly,
non-obvious and inefficient.
2024-04-09 10:34:18 +02:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc fftools/ffmpeg_filter: implement filtergraph chaining 2024-04-09 10:34:18 +02:00
ffbuild makefile: Clean up missed object files with "make clean" 2024-03-10 23:45:51 +02:00
fftools fftools/ffmpeg_filter: implement filtergraph chaining 2024-04-09 10:34:18 +02:00
libavcodec x86/ac3dsp: clear the upper 32 bits for input arguments where needed 2024-04-08 13:45:58 -03:00
libavdevice avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libavfilter lavfi/avfilter: add an "auto" constant to the threads option 2024-04-09 10:34:18 +02:00
libavformat lavf/lrc: fix comments in headers 2024-04-06 12:59:56 +02:00
libavutil avutil/pix{desc,fmt}: add new matrix coefficients from H.273 v3 2024-04-03 21:31:35 +03:00
libpostproc avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswresample avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswscale swscale/utils: Fix xInc overflow 2024-04-04 19:38:29 +02:00
presets
tests avcodec/ac3: Implement sum_square_butterfly_float for aarch64 NEON 2024-04-08 13:36:40 +03:00
tools tools/target_dec_fuzzer: Adjust threshold for RV30 2024-04-03 00:44:37 +02:00
.gitattributes lavf/assenc: normalize line endings to \n 2024-02-11 17:01:07 -08:00
.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
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Changelog fftools/ffmpeg_filter: implement filtergraph chaining 2024-04-09 10:34:18 +02:00
configure avcodec/libaomenc: bump the minimum required version to 2.0.0 2024-04-05 14:32:08 -03:00
CONTRIBUTING.md
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CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
INSTALL.md
LICENSE.md
MAINTAINERS MAINTAINERS: add myself as dvdvideo demuxer, rcwt muxer maintainer 2024-03-10 15:21:23 +01:00
Makefile tools: Add target_sws_fuzzer.c 2024-02-21 18:24:17 +01:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE RELEASE: update after 7.0 branch 2024-04-02 13:02:39 -03:00

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.