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FFmpeg git repo
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Andreas Rheinhardt 8d4b22edc7 avformat/iamf_writer, iamfenc: Avoid allocations when using dyn buffers 
Use avio_get_dyn_buf()+ffio_free_dyn_buf() instead of
avio_close_dyn_buf()+av_free(). This saves an allocation
(and memcpy) in case all the data fits in the AVIOContext's
write buffer.

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-02-03 00:26:02 +01:00
compat
doc lavc/bsf: add a showinfo filter 2024-02-02 15:41:54 +01:00
ffbuild riscv: test for assembler support 2023-12-08 17:21:09 +02:00
fftools fftools/ffmpeg_filter: simplify buffersrc arg printing 2024-02-02 13:24:27 +01:00
libavcodec lavc/bsf: add a showinfo filter 2024-02-02 15:41:54 +01:00
libavdevice lavd: deprecate the bktr device 2024-02-02 15:40:35 +01:00
libavfilter avfilter/buffersrc: limit link variance logs below debug loglevel 2024-02-01 16:36:18 +05:30
libavformat avformat/iamf_writer, iamfenc: Avoid allocations when using dyn buffers 2024-02-03 00:26:02 +01:00
libavutil avutil/hwcontext_d3d12va: Use av_image_copy() wrapper 2024-01-24 15:48:54 +01:00
libpostproc
libswresample swr/swresample: avoid reapplication of firstpts 2023-12-18 15:47:04 +05:30
libswscale riscv: test for assembler support 2023-12-08 17:21:09 +02:00
presets
tests fate/checkasm: enable testing vvc_mc 2024-02-01 10:07:26 -03:00
tools tools/target_dec_fuzzer: Adjust threshold for QPEG 2023-12-29 01:15:41 +01:00
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Changelog lavc/bsf: add a showinfo filter 2024-02-02 15:41:54 +01:00
configure avformat/mpegts: add ts stream types for H266/VVC 2024-01-31 22:14:12 +08:00
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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.