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Andreas Rheinhardt 3f938cd46a avformat/av1dec: Flush BSF upon seeking 
The av1_merge_frame BSF outputs its cached data when it sees the
beginning of a new frame, i.e. when it sees a temporal delimiter OBU.
Therefore it typically has a temporal delimiter OBU cached after
outputting a packet.

This implies that the OBU demuxer must flush its BSF upon seeking
because otherwise the first frame returned after a seek consists
of an old temporal delimiter OBU only.

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 		2021-08-23 07:05:56 +02:00
compat compat/cuda: add __expf() implementation 2021-08-14 15:06:47 +02:00
doc lavf/concatdec: support per-file options 2021-08-22 11:44:16 +02:00
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools fftools/cmdutils: Switch to avfilter_filter_pad_count() 2021-08-20 14:29:15 +02:00
libavcodec avcodec/av1_frame_merge_bsf: Passthrough pos in case of no timestamps 2021-08-23 07:04:55 +02:00
libavdevice avdevice/decklink: support for more duplex mode for Decklink 8K Pro 2021-08-16 10:00:39 +08:00
libavfilter avfilter/vf_xmedian: Free inpads' names generically 2021-08-22 16:15:54 +02:00
libavformat avformat/av1dec: Flush BSF upon seeking 2021-08-23 07:05:56 +02:00
libavutil avutil/opt: Document actual behaviour of av_opt_copy a bit more 2021-08-17 19:11:57 +02:00
libpostproc postproc/postprocess: Remove legacy cruft 2021-07-29 22:02:06 +02:00
libswresample (postproc|swresample)/version: Don't include libavutil/avutil.h 2021-07-29 22:02:05 +02:00
libswscale avutil/internal, swresample/audioconvert: Remove cpu.h inclusions 2021-07-22 14:33:45 +02:00
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tests avformat/mov: add AVFMT_SHOW_IDS flag 2021-08-22 17:55:31 +05:30
tools tools/dvd2concat: use option keyword 2021-08-22 11:44:17 +02:00
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Changelog avcodec: add SMC encoder 2021-08-18 08:55:56 +02:00
INSTALL.md
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LICENSE.md
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MAINTAINERS avformat: add Argonaut Games CVG demuxer 2021-05-12 20:25:50 +10:00
Makefile FATE: add a test for sliced scaling 2021-08-08 19:26:05 +02:00
README.md
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RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00
configure avfilter/vf_convolve: switch to TX FFT from avutil 2021-08-17 09:15:06 +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 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.