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swscale/optimizer: eliminate completely unused operations 
e.g. empty read when all components are eventually cleared

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>
2026-02-19 19:44:46 +00:00
.forgejo .forgejo/workflows: Test hardcoded tables 2026-02-14 20:15:13 +01:00
compat compat: Fix .def file generation for ARM64EC builds on Windows 2025-12-19 10:01:16 +00:00
doc avfilter/af_loudnorm: add stats_file option 2026-02-19 12:48:58 +00:00
ffbuild vulkan: support shader compression 2026-01-12 17:28:41 +01:00
fftools fftools/ffmpeg_opt: limit recursion of presets 2026-02-17 13:41:37 +00:00
libavcodec vulkan/ffv1: add current linecache for encode/decode 2026-02-19 19:42:35 +01:00
libavdevice avdevice/gdigrab: suppress int to pointer cast warning 2025-12-03 23:45:44 +00:00
libavfilter vulkan: drop support for descriptor buffers 2026-02-19 19:42:31 +01:00
libavformat libavformat/oggdec.c: fix ogg_{save,restore,reset} w.r.t. new_extradata. 2026-02-19 16:45:42 +00:00
libavutil ffv1enc_vulkan: allocate all results memory upfront 2026-02-19 19:42:34 +01:00
libswresample swresample: Check ch layouts in swr_alloc_set_opts2() 2026-02-15 20:16:12 +01:00
libswscale swscale/optimizer: eliminate completely unused operations 2026-02-19 19:44:46 +00:00
presets
tests swscale/optimizer: compress planar reads with unused planes 2026-02-19 19:44:46 +00:00
tools tools/target_dec_fuzzer: Adjust threshold for JV 2026-02-18 08:18:44 +00:00
.gitattributes gitattributes: End merge conflicts in Changelog 2025-03-17 15:26:10 +01:00
.gitignore vulkan: support shader compression 2026-01-12 17:28:41 +01:00
.mailmap mailmap: add entry for myself 2025-08-08 21:51:15 +00:00
Changelog avfilter: d3d12 motion estimation filter support 2026-01-26 11:31:48 +00:00
configure avcodec: remove support for runtime SPIR-V compilation 2026-02-19 19:42:29 +01:00
CONTRIBUTING.md
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INSTALL.md all: fix typos found by codespell 2025-08-03 13:48:47 +02:00
LICENSE.md Remove libpostproc 2025-05-07 15:35:47 +02:00
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 RELEASE: update to 8.0 2025-08-14 08:42:29 -04:00

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.