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Marton Balint 3e79074c41 avformat/mov_chan: never override number of channels based on chan atom 
The channel designation metadata should not override the number of channels.
Let's warn the user if it is inconsistent, and keep the channel layout
unspecified.

Before the conversion to the channel layout API the code only set the mask, but
never overridden the channel count, so this restores the old behaviour.

Signed-off-by: Marton Balint <cus@passwd.hu>
(cherry picked from commit dc9d64f794)
2024-02-11 23:03:03 +01:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc Update for 6.1.1 2023-12-29 13:20:48 +01:00
ffbuild configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
fftools fftools/ffmpeg_mux_init: Restrict disabling automatic copying of metadata 2023-11-02 23:52:12 -03:00
libavcodec avfft: avoid overreads with RDFT API users 2024-02-09 23:23:49 +01:00
libavdevice avdevice/android_camera: fix build failure due to typo 2023-11-09 16:48:08 +08:00
libavfilter avfilter/vf_minterpolate: Check pts before division 2023-12-30 21:59:26 +01:00
libavformat avformat/mov_chan: never override number of channels based on chan atom 2024-02-11 23:03:03 +01:00
libavutil hwcontext_vulkan: guard unistd.h include 2023-12-11 16:38:17 +01:00
libpostproc Bump versions prior to 6.1 2023-10-29 16:19:39 +01:00
libswresample Bump versions prior to 6.1 2023-10-29 16:19:39 +01:00
libswscale Bump versions prior to 6.1 2023-10-29 16:19:39 +01:00
presets
tests avutil/channel_layout: add a 3.1.2 channel layout 2023-10-27 08:46:34 -03:00
tools tools/target_dec_fuzzer: Adjust threshold for VMIX 2023-12-29 13:18:58 +01:00
.gitattributes
.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
.mailmap mailmap: stop git lying about who I commit things as 2022-11-04 19:37:46 +01:00
.travis.yml Merge commit '899ee03088' 2019-03-14 15:53:16 -03:00
Changelog Changelog: update 2023-12-30 22:19:58 +01:00
configure configure: Enable section_data_rel_ro for FreeBSD and NetBSD aarch64 / arm 2023-12-29 13:18:59 +01:00
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
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: add entry for jpegxl* 2023-10-17 08:44:23 -04:00
Makefile tools: Don't include the direct library names when linking 2023-10-02 22:49:07 +03:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE Update for 6.1.1 2023-12-29 13:20:48 +01:00
RELEASE_NOTES RELEASE_NOTES: Based on the version from 5.1 2023-11-10 23:32:04 +01:00

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.