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Limin Wang 49054fe94c FATE: fix colorbalance fate test failed on x86_32
floating point precision will cause rgb*max generate different value on
x86_32 and x86_64. have pass fate test on x86_32 and x86_64 by using
lrintf to get the nearest integral value for rgb * max before av_clip.

Reviewed-by:   Paul B Mahol <onemda@gmail.com>
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
2020-07-02 21:12:37 +08:00
compat compat/cuda/ptx2c: remove shell loop; fix BSD sed compat 2020-06-01 22:10:41 -05:00
doc Replace 'FontName' with 'Fontname' in the documentation. 2020-07-02 17:37:10 +05:30
ffbuild common.mak: Also clean Windows debug files. 2020-03-21 18:46:00 +01:00
fftools fftools/ffmpeg_filter: add -autoscale to disable/enable the default scale 2020-06-18 16:31:09 +08:00
libavcodec avcodec/libaomenc: Add command-line options for intra-coding tools 2020-07-01 11:55:04 -07:00
libavdevice lavdevice: Add AudioToolbox output device. 2020-06-15 15:09:33 +02:00
libavfilter FATE: fix colorbalance fate test failed on x86_32 2020-07-02 21:12:37 +08:00
libavformat avformat/hevc: Defer initializations in ff_isom_write_hvcc() 2020-07-02 02:09:59 +02:00
libavresample
libavutil avutil/avsscanf: Add () to avoid integer overflow in scanexp() 2020-07-01 11:41:35 +02:00
libpostproc Bump minor versions after branching 4.3 2020-06-08 22:49:04 +02:00
libswresample Bump minor versions after branching 4.3 2020-06-08 22:49:04 +02:00
libswscale swscale: cosmetic fixes 2020-06-14 16:34:07 +01:00
presets
tests FATE: fix colorbalance fate test failed on x86_32 2020-07-02 21:12:37 +08:00
tools dnn_backend_native_layer_mathunary: add atan support 2020-06-25 08:41:50 +08:00
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.mailmap mailmap: add entry for myself 2020-06-17 22:11:34 +08:00
.travis.yml
Changelog avformat: add MCC demuxer 2020-06-18 21:31:13 +02:00
configure dnn: add openvino as one of dnn backend 2020-07-02 09:36:34 +08:00
CONTRIBUTING.md
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INSTALL.md
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MAINTAINERS MAINTAINERS: remove myself as Twitter maintainer 2020-06-28 12:37:55 -08:00
Makefile Makefile: Delete more created files when running "make distclean". 2020-03-11 11:43:01 +01:00
README.md
RELEASE RELEASE: We are after the 4.3 branch point, update for that 2020-06-10 00:20:24 +02:00

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.