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Andreas Rheinhardt 12c2a4e117 avcodec: Don't set AVCodec.sample_fmts,ch_layouts for decoders 
It is pointless for them given that these values will
be overridden by the decoder lateron anyway.
The only exceptions to this are scenarios where the decoder
actually checks request_sample_fmt or where there are both
fixed- and floating point decoders.

(IMO something like get_format() for audio would be better for
both cases.)

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2026-02-11 12:07:35 +01:00
.forgejo forgejo/workflows: update actions 2026-01-24 20:05:07 +00:00
compat compat: Fix .def file generation for ARM64EC builds on Windows 2025-12-19 10:01:16 +00:00
doc avformat: add AVFormatContext.name 2026-02-09 14:01:14 +00:00
ffbuild vulkan: support shader compression 2026-01-12 17:28:41 +01:00
fftools fftools/ffmpeg_mux_init: Improve type-safety 2026-02-10 16:36:58 +01:00
libavcodec avcodec: Don't set AVCodec.sample_fmts,ch_layouts for decoders 2026-02-11 12:07:35 +01:00
libavdevice avdevice/gdigrab: suppress int to pointer cast warning 2025-12-03 23:45:44 +00:00
libavfilter avfilter/lavfutils: Avoid AVDictionary 2026-02-10 19:44:46 +01:00
libavformat avformat/cafdec: Check nb_entries in read_info_chunk() 2026-02-11 01:17:30 +00:00
libavutil avutil/opt: Improve type-safety 2026-02-10 19:44:46 +01:00
libswresample swresample/soxr_resample: pass initialized data to soxr_process() in flush() 2025-12-08 21:31:13 +00:00
libswscale swscale/utils: Improve type-safety 2026-02-10 19:44:46 +01:00
presets
tests avcodec/x86/mpegvideoencdsp_init: Port draw_edges to SSSE3 2026-02-11 11:15:06 +01:00
tools tools/target_dec_fuzzer: adjust threshold for MAGICYUV 2026-02-05 16:50:26 +01:00
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.gitignore vulkan: support shader compression 2026-01-12 17:28:41 +01:00
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Changelog avfilter: d3d12 motion estimation filter support 2026-01-26 11:31:48 +00:00
configure Revert "avcodec/opus/parse: export the packet and extradata parsing functions" 2026-02-06 14:09:15 +01:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
FUNDING.json
INSTALL.md
LICENSE.md
MAINTAINERS MAINTAINERS: add myself as whip maintainer 2026-01-11 04:24:55 +00:00
Makefile Makefile: add missing vpath for glsl/spv 2026-01-12 19:18:36 +01:00
README.md
RELEASE

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.