mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-02-14 22:22:59 +02:00
New VdpYCbCr Formats VDP_YCBCR_FORMAT_Y_U_V_444 and, VDP_YCBCR_FORMAT_Y_UV_444 have been added in VDPAU with libvdpau-1.2 to be used in get/putbits for YUV 4:4:4 surfaces. Earlier mapping of AV_PIX_FMT_YUV444P to VDP_YCBCR_FORMAT_YV12 is not valid. Hence this Change maps AV_PIX_FMT_YUV444P to VDP_YCBCR_FORMAT_Y_U_V_444 to access the YUV 4:4:4 surface via read-back API's of VDPAU.
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
andqt-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.
Languages
C
90.3%
Assembly
7.8%
Makefile
1.3%
C++
0.2%
Objective-C
0.2%
Other
0.1%