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Philip Langdale 5de4f1d871 avutil: Add NV24 and NV42 pixel formats
These are the 4:4:4 variants of the semi-planar NV12/NV21 formats.

These formats are not used much, so we've never had a reason to add
them until now. VDPAU recently added support HEVC 4:4:4 content
and when you use the OpenGL interop, the returned surfaces are in
NV24 format, so we need the pixel format for media players, even
if there's no direct use within ffmpeg.

Separately, there are apparently webcams that use NV24, but I've
never seen one.
2019-05-12 07:51:02 -07:00
compat compat/avisynth: update headers 2019-05-04 11:56:53 +05:30
doc avfilter: add colorhold filter 2019-05-11 20:16:45 +02:00
ffbuild Merge commit '7e5bde93a1e7641e1622814dafac0be3f413d79b' 2019-03-10 19:31:13 -03:00
fftools libavformat: improve logs with cur_dts 2019-04-19 17:14:44 +02:00
libavcodec avcodec/h264_ps: Check offset_for_non_ref_pic, offset_for_top_to_bottom_field and offset_for_ref_frame 2019-05-12 16:32:16 +02:00
libavdevice avdevice/decklink: fix checking video mode in SDK version 11 2019-05-05 20:07:35 +02:00
libavfilter avfilter: add colorhold filter 2019-05-11 20:16:45 +02:00
libavformat lavf/isom: Allow reading mp3-in-isom as written by vlc. 2019-05-12 01:35:47 +02:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil avutil: Add NV24 and NV42 pixel formats 2019-05-12 07:51:02 -07:00
libpostproc postproc/postprocess_template: remove FF_REG_sp from clobber list 2018-12-22 17:41:44 +01:00
libswresample Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
libswscale swscale/ppc: Shorten power8 tests via a var 2019-05-07 10:08:16 +03:00
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Changelog avfilter: add colorhold filter 2019-05-11 20:16:45 +02:00
configure configure: enable ffnvcodec, nvenc, nvdec for ppc6le 2019-05-08 12:07:28 +02:00
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RELEASE RELEASE: bump to 4.1.git 2018-11-02 00:55:49 +01:00

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.