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Andreas Rheinhardt f4167842c1 avformat/mux: Add flag for "not more than one stream of each type" 
More exactly: Not more than one stream of each type for which
a default codec (i.e. AVOutputFormat.(audio|video|subtitle)_codec)
is set; for those types for which no such codec is set (or for
which no designated default codec in AVOutputFormat exists at all)
no streams are permitted.

Given that with this flag set the default codecs become more important,
they are now set explicitly to AV_CODEC_ID_NONE for "unset";
the earlier code relied on AV_CODEC_ID_NONE being equal to zero,
so that default static initialization set it accordingly;
but this is not how one is supposed to use an enum.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 		2024-03-22 23:57:19 +01:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc avutil/frame: Rename av_frame_side_data_get and add wrapper for it 2024-03-22 23:38:16 +01:00
ffbuild makefile: Clean up missed object files with "make clean" 2024-03-10 23:45:51 +02:00
fftools fftools/ffmpeg_enc: Don't call frame_data twice 2024-03-22 22:11:04 +01:00
libavcodec avutil/frame: Rename av_frame_side_data_get and add wrapper for it 2024-03-22 23:38:16 +01:00
libavdevice avformat/mux: Rename FF_FMT_ALLOW_FLUSH->FF_OFMT_FLAG_ALLOW_FLUSH 2024-03-22 23:57:19 +01:00
libavfilter libavfi/dnn: add LibTorch as one of DNN backend 2024-03-19 14:48:58 +08:00
libavformat avformat/mux: Add flag for "not more than one stream of each type" 2024-03-22 23:57:19 +01:00
libavutil avutil/frame: Use av_realloc_array(), improve overflow check 2024-03-22 23:38:36 +01:00
libpostproc libs: bump major version for all libraries 2024-03-07 11:29:43 -03:00
libswresample libs: bump major version for all libraries 2024-03-07 11:29:43 -03:00
libswscale avutil/x86util: Fix broken pre-SSE4.1 PMINSD emulation 2024-03-17 13:52:27 +01:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests fate/filter-audio: Don't use pcm output for channelsplit test 2024-03-22 23:57:19 +01:00
tools tools/target_dec_fuzzer: adjust threshold for AV_CODEC_ID_IFF_ILBM 2024-03-19 04:10:48 +01:00
.gitattributes lavf/assenc: normalize line endings to \n 2024-02-11 17:01:07 -08:00
.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
.mailmap .mailmap: Update my mailmap entry 2024-02-23 00:17:21 +01:00
.travis.yml Merge commit '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
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COPYING.GPLv3
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COPYING.LGPLv2.1
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COPYING.LGPLv3
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CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
Changelog Changelog: mention ffplay with hwaccel decoding support 2024-03-22 20:26:53 +08:00
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 myself as dvdvideo demuxer, rcwt muxer maintainer 2024-03-10 15:21:23 +01:00
Makefile tools: Add target_sws_fuzzer.c 2024-02-21 18:24:17 +01:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE RELEASE: update after 5.1 branch 2022-07-13 00:31:42 +02:00
configure avcodec/libx264: fix extradata when config annexb=0 2024-03-22 20:26:53 +08:00

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.