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Wolfgang Müller a67734596d avformat/id3v2: Add Grouping frame to id3v2.4 metadata table 
The ID3v2.4.0 standard defines TIT1 as the "Content group description"
tag [1]. This frame is usually referred to as the "Grouping" tag and in
de-facto use under that name by Vorbis and APEv2 [2].

This commit introduces a mapping from "TIT1" to "grouping" in the
id3v2.4 metadata conversion table. This will enable software to access
it using that name. In particular, MPD will now read this tag correctly
when using the ffmpeg decoder plugin.

[1] https://id3.org/id3v2.4.0-frames (4.2.1)
[2] https://picard-docs.musicbrainz.org/en/appendices/tag_mapping.html#grouping-3

Signed-off-by: Wolfgang Müller <wolf@oriole.systems>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2022-02-15 10:15:25 +01:00
compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc avfilter/af_surround: change x/y spread defaults 2022-02-12 12:48:42 +01:00
ffbuild Makefile: Redo duplicating object files in shared builds 2022-01-04 05:01:04 +01:00
fftools fftools/ffmpeg: Restore DTS correction for VP9 copies 2022-02-13 10:46:47 -03:00
libavcodec avcodec/exif: Don't include tiff.h in exif.h 2022-02-14 11:33:53 +01:00
libavdevice lavd/jack: switch to the new FIFO API 2022-02-07 00:31:23 +01:00
libavfilter avfilter/vf_mix: improve speed of processing 2022-02-14 23:57:58 +01:00
libavformat avformat/id3v2: Add Grouping frame to id3v2.4 metadata table 2022-02-15 10:15:25 +01:00
libavutil avutil/tx: Fix documentation of av_tx_uninit() 2022-02-11 19:38:41 +01:00
libpostproc lib*/version.h: Bump Versions after release/5.0 branch 2022-01-04 14:29:06 +01:00
libswresample lib*/version.h: Bump Versions after release/5.0 branch 2022-01-04 14:29:06 +01:00
libswscale swscale/x86/swscale: Remove superfluous and invalid ';' 2022-01-22 17:00:45 +01:00
presets
tests avformat/imf: add IMF CPL with repeated resources to FATE 2022-02-03 04:00:09 +01:00
tools tools/target_dec_fuzzer: Adjust threshold for prores 2021-12-16 21:06:47 +01:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore build: detect Metal.framework and build .metal files 2021-12-18 11:55:47 -08:00
.mailmap mailmap: add entry for myself 2021-03-09 02:09:55 +00:00
.travis.yml Merge commit '899ee03088' 2019-03-14 15:53:16 -03:00
Changelog avfilter: add dialogue enhance audio filter 2022-02-12 12:47:36 +01:00
configure avfilter/vf_fftfilt: switch to rdft from lavu/tx 2022-02-14 17:52:09 +01:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
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 my gpg fingerprint 2021-12-23 09:25:16 +08:00
Makefile Makefile: Redo duplicating object files in shared builds 2022-01-04 05:01:04 +01:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +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.