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imgutils: expose av_image_copy_plane_uc_from() 
The reason why the generic av_image_copy_uc_from() doesn't really
fit in the case for Vulkan is because some planes may be copied via
other methods (such as mapping GPU memory), and if they don't satisfy
the strict alignment requirements, a gpu image->gpu buffer->cpu ram
copy is performed.

We need this for hwcontext_vulkan, and I think this will also be
useful to API users like libplacebo who would rather not write
a custom SIMD memcpy.
2021-08-14 00:27:43 +02:00
compat avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
doc imgutils: expose av_image_copy_plane_uc_from() 2021-08-14 00:27:43 +02:00
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools qsvdec: add support for HW_DEVICE_CTX method 2021-08-11 13:45:36 -03:00
libavcodec avcodec/smc: use uint8_t type instead of longer variant 2021-08-13 19:18:24 +02:00
libavdevice lavd/lavfi.c: Set time_base for 608 cc to container time_base. 2021-08-02 14:00:52 +02:00
libavfilter avfilter/vf_transpose_npp: Use correct array name 2021-08-13 22:44:47 +02:00
libavformat avformat/oggdec: Use av_realloc_array() 2021-08-12 15:25:58 +02:00
libavutil imgutils: expose av_image_copy_plane_uc_from() 2021-08-14 00:27:43 +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 FATE: add a test for sliced scaling 2021-08-08 19:26:05 +02:00
tools FATE: add a test for sliced scaling 2021-08-08 19:26:05 +02:00
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.travis.yml Merge commit '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
Changelog avfilter: add afwtdn filter 2021-07-24 12:24:40 +02:00
configure configure: [loongson] adjust MMI check in configure 2021-08-10 16:16:06 +02:00
CONTRIBUTING.md
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INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
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 Remove the ffserver program 2018-01-06 18:31:37 +00:00
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.