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James Almer 706d4e4736 avutil/iamf: stop setting parameter definition block defaults 
It was done for the sake of having subblock_duration not be zero as the spec
forbids that value, but harcoding it to any arbitrary value is no better
considering the user is meant to fill the entire structure.

This helps speeding up the function when trying to allocate a struct with a
huge amount of blocks.

Signed-off-by: James Almer <jamrial@gmail.com>
2026-02-08 21:58:06 -03:00
.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/http: allow limiting initial request size 2026-02-07 10:02:36 +00:00
ffbuild vulkan: support shader compression 2026-01-12 17:28:41 +01:00
fftools fftools/ffprobe: add base64 data dump format 2026-02-04 21:46:30 +01:00
libavcodec avcodec/exif: skip EXIF entries with invalid TIFF field type 0 2026-02-08 19:56:20 +00:00
libavdevice avdevice/gdigrab: suppress int to pointer cast warning 2025-12-03 23:45:44 +00:00
libavfilter avfilter/vf_find_rect: Check x/y min/max 2026-02-05 17:08:30 +01:00
libavformat avformat/scd: Use ffio_read_size() 2026-02-08 02:25:14 +01:00
libavutil avutil/iamf: stop setting parameter definition block defaults 2026-02-08 21:58:06 -03:00
libswresample swresample/soxr_resample: pass initialized data to soxr_process() in flush() 2025-12-08 21:31:13 +00:00
libswscale swscale/swscale: force SwsDither and SwsAlphaBlend to 32 bits 2026-02-04 04:00:53 +00:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests avformat/matroskaenc: parse Opus packets to write proper durations 2026-02-05 23:21:49 -03:00
tools tools/target_dec_fuzzer: adjust threshold for MAGICYUV 2026-02-05 16:50:26 +01:00
.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 Revert "avcodec/opus/parse: export the packet and extradata parsing functions" 2026-02-06 14:09:15 +01:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1 all: fix whitespace/new-line issues 2025-08-03 13:48:47 +02:00
COPYING.LGPLv3
CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
FUNDING.json Add FUNDING.json 2025-06-23 14:48:40 +02:00
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 README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
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.