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FFmpeg git repo
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Steven Liu 282b9f4cba avfilter/overlay_cuda: add hsub and vsub compute x and y positions 
fix problem when set x to odd number in nv12 by cuda

test step:
1. ffmpeg -f lavfi testsrc2=s=176x144 -pix_fmt nv12 -t 1 output_overlay.yuv
2. ffmpeg -f lavfi testsrc2=s=352x288 -pix_fmt nv12 -t 1 output_main.yuv
before this patch:
overlay_cuda=x=0:y=0 will right,
overlay_cuda=x=3:y=0 will wrong,

both will right after patch.

Signed-off-by: Steven Liu <liuqi05@kuaishou.com>
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
 		2021-06-07 17:02:36 +02:00
compat fix broken links to msdn documentation 2021-05-13 09:13:03 +10:00
doc avformat/mov: add option to use tfdt for fragment timestamps. 2021-06-02 10:46:04 +05:30
ffbuild libavresample: Remove deprecated library 2021-04-27 10:43:13 -03:00
fftools fftools/ffmpeg: remove usage of internal timestamp AVStream fields 2021-06-04 22:36:39 -03:00
libavcodec avcodec/nvenc: add option to disable all extra SEI data 2021-06-06 22:01:56 +02:00
libavdevice avformat: move AVStream.{parser,need_parsing} to AVStreamInternal 2021-05-07 09:27:21 -03:00
libavfilter avfilter/overlay_cuda: add hsub and vsub compute x and y positions 2021-06-07 17:02:36 +02:00
libavformat avformat/rpl: Use 64bit in bitrate computation and check it 2021-06-05 16:59:37 +02:00
libavutil libavcodec/mips: Fix build errors reported by clang 2021-06-03 13:44:00 +02:00
libpostproc Bump major versions of all libraries. 2021-04-27 11:48:05 -03:00
libswresample Bump major versions of all libraries. 2021-04-27 11:48:05 -03:00
libswscale swscale/swscale_unscaled: don't use the optimized bgr24toYV12 unscaled conversion when width%2 2021-06-06 12:34:05 +08:00
presets
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tests fate-aac: use the fast coder for tests 2021-05-21 19:28:50 +02:00
tools tools/target_dec_fuzzer: Adjust threshold for TAK 2021-05-12 23:00:07 +02:00
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Changelog avformat: add Argonaut Games CVG muxer 2021-05-12 20:27:02 +10:00
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 libavresample: Remove deprecated library 2021-04-27 10:43:13 -03:00
README.md
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RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00
configure configure: detect nvcc without sm_30 support 2021-06-06 21:31:00 +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.