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Andreas Rheinhardt e1e6a5c8a5 avformat/matroskaenc: Check chapter ids for duplicates 
Up until now, there has been no check that each chapter has a unique id;
there was only a check for whether a chapter id is zero (this happens
often when the chapters originated from a format that lacks the concept
of chapter id and simply counts from zero) which is invalid in Matroska.
In this case the chapter ids are offset by 1 to make them nonnegative.
Yet offsetting won't fix duplicate ids, therefore this is changed to
simply create new chapter uids when the input chapter uids don't conform
to the requirements of Matroska (in which case it can be presumed that
they did not originate from Matroska, so that we don't need to bother
to preserve them).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 		2021-03-19 02:31:49 +01:00
compat compat/cuda: correct ushort4 to use ushort 2021-02-22 17:03:52 +01:00
doc doc/examples/vaapi_transcode: use av_packet_alloc() to allocate packets 2021-03-17 15:19:37 -03:00
ffbuild ffbuild/common: Make deletion of templates possible 2021-02-07 09:45:04 +01:00
fftools fftools/ffmpeg: use av_packet_alloc() to allocate packets 2021-03-17 15:19:38 -03:00
libavcodec avcodec/libxvid: Remove set-but-unused variable 2021-03-19 02:25:16 +01:00
libavdevice avdevice/xcbgrab: stop using av_init_packet() 2021-03-17 15:19:36 -03:00
libavfilter lavfi/dnn_backend_openvino.c: fix mem leak for TaskItem upon error 2021-03-18 09:30:09 +08:00
libavformat avformat/matroskaenc: Check chapter ids for duplicates 2021-03-19 02:31:49 +01:00
libavresample
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libavutil avutil/avstring: Check for memory allocation error in av_escape 2021-03-15 06:45:07 +01:00
libpostproc lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump 2021-01-01 14:14:57 +01:00
libswresample swresample/audioconvert: Fix left shift of negative value 2020-09-30 10:50:45 +02:00
libswscale swscale/x86/swscale: Remove unused ASM constants 2021-02-24 09:47:54 +01:00
presets
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tests tests/api/api-flac-test: use av_packet_alloc() to allocate packets 2021-03-17 15:19:37 -03:00
tools tools/target_bsf_fuzzer: use av_packet_alloc() to allocate packets 2021-03-17 15:19:37 -03:00
.gitattributes
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.gitignore tools/python: add script to convert TensorFlow model (.pb) to native model (.model) 2019-07-01 10:23:47 -03:00
.mailmap mailmap: add entry for myself 2021-03-09 02:09:55 +00:00
.travis.yml Merge commit '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
CONTRIBUTING.md
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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
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Changelog avformat: add Changelog entry for librist and bump minor 2021-03-13 17:36:48 +01:00
INSTALL.md
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LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: update names 2021-01-20 01:04:26 -06:00
Makefile tools/enum_options: fix build and add to Makefile 2020-11-20 15:20:24 +01:00
README.md
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RELEASE RELEASE: We are after the 4.3 branch point, update for that 2020-06-10 00:20:24 +02:00
configure libavformat: add librist protocol 2021-03-13 17:36:48 +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 a mean to alter decoded Audio and Video through chain of 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.