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Marton Balint 223c2b03da avfilter/buffersink: keep requesting frames if one activation of the graph does not provide one 
A frame graph activation might not produce a frame in the requested sink, so
keep on requesting a frame there unless we encounter a filter activation with
buffersrc empty error.

This makes av_buffersink_get_frame(_flags) work according to its documentation
which claims that EAGAIN is only returned if additional frames must be inserted
into the graph.

Fate changes are because audio frames will have different sizes at segment
boundaries, but content is the same.

Signed-off-by: Marton Balint <cus@passwd.hu>
2025-07-03 21:41:54 +02:00
compat compat/cuda: add device side printf function 2025-05-14 22:08:33 +02:00
doc avfilter: factorize requesting an input frame from multi output filters 2025-07-03 21:41:53 +02:00
ffbuild ffbuild: correctly silence and tag new css/html steps 2025-05-28 01:02:55 +02:00
fftools fftools/textformat: renamings in print_unit_int for consistency (cosmetic) 2025-06-27 00:24:35 +02:00
libavcodec avcodec/rv34: Fix spelling mistake 2025-07-03 20:35:32 +02:00
libavdevice various: fix typos 2025-06-15 21:00:38 +05:30
libavfilter avfilter/buffersink: keep requesting frames if one activation of the graph does not provide one 2025-07-03 21:41:54 +02:00
libavformat avformat/dump: add support for 3D Reference Displays Information side data 2025-07-01 22:46:22 +02:00
libavutil avutil/frame: add a 3D Reference Displays Information side data type 2025-07-01 22:42:53 +02:00
libswresample swresample/rematrix: Constify 2025-07-03 18:17:56 +02:00
libswscale swscale/utils: Fix potential race when initializing xyz tables 2025-05-27 13:49:26 +02:00
presets
tests avfilter/buffersink: keep requesting frames if one activation of the graph does not provide one 2025-07-03 21:41:54 +02:00
tools tools/pktdumper: dump extradata buffers 2025-07-01 16:45:08 +10:00
.gitattributes gitattributes: End merge conflicts in Changelog 2025-03-17 15:26:10 +01:00
.gitignore ffmpeg/repo: Add dot-folders in the repository root to .gitignore 2025-04-19 17:29:12 +02:00
.mailmap mailmap: add entry for myself 2024-07-15 01:59:37 +02:00
Changelog avcodec/g728dec: G.728 decoder 2025-06-23 17:16:42 +10:00
configure avcodec/amfdec: Add VP9 AMF decoder 2025-06-26 13:48:15 +02:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
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 Add tools/merge-all-source-plugins 2025-05-15 12:17:04 +02:00
LICENSE.md Remove libpostproc 2025-05-07 15:35:47 +02:00
MAINTAINERS MAINTAINERS: Add myself for graph printing 2025-06-07 14:32:25 +02:00
Makefile Makefile: Split ALLFFLIBS 2025-05-26 20:33:10 +02:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE RELEASE: update release number after release/7.1 branch 2024-10-09 01:55:50 +02:00

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.