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Andreas Rheinhardt b99fb4df42 avcodec/bsf: Use null-bsf for passthrough when available 
When an empty list bsf is used for passthrough, there is a check
for every packet in bsf_list_filter() before ff_bsf_get_packet_ref()
is called. Directly using the null bsf avoids that.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-09-14 13:41:26 +02:00
compat compat/cuda: add __expf() implementation 2021-08-14 15:06:47 +02:00
doc avfilter/vf_xfade: add zoomin transition 2021-09-12 15:01:48 +02:00
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools ffmpeg_hw: make hardware selection for filters more user friendly 2021-09-12 13:33:50 -03:00
libavcodec avcodec/bsf: Use null-bsf for passthrough when available 2021-09-14 13:41:26 +02:00
libavdevice avdevice/decklink: support for more duplex mode for Decklink 8K Pro 2021-08-16 10:00:39 +08:00
libavfilter avfilter/internal: Add AVFILTER_DEFINE_CLASS_EXT 2021-09-13 16:08:29 +02:00
libavformat avformat/jacosubdec: Check for min in t overflow in get_shift() 2021-09-13 22:48:10 +02:00
libavutil libavutil/hwcontext_d3d11va: adding more texture information to the D3D11 hwcontext API 2021-09-08 17:48:02 -03:00
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 libswscale/swscale: initialize all dst plane pointers in sws_receive_slice() 2021-09-07 09:44:58 -03:00
presets
tests avcodec/wmadec: fix WMA gapless playback 2021-09-12 22:23:35 +02:00
tools tools/target_bsf_fuzzer: Make it const-correct 2021-09-14 13:36:31 +02:00
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Changelog avfilter: add audio psychoacoustic clipper 2021-09-11 16:19:40 +02:00
configure configure: Remove null_bsf dependency 2021-09-14 13:36:19 +02:00
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MAINTAINERS avformat: add Argonaut Games CVG demuxer 2021-05-12 20:25:50 +10:00
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README.md
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 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.