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Philip Langdale 6a89cdc474 avcodec/nvenc: Declare support for P016 
nvenc doesn't support P016, but we have two problems today:

1) We declare support for YUV444P16 which nvenc also doesn't support.
   We do this because it's the only pix_fmt we have that can
   approximate nvenc's internal format that is YUV444P10 with data in
   MSBs instead of LSBs. Because the declared format is a 16bit one,
   it will be preferrentially chosen when encoding >10bit content,
   but that content will normally be YUV420P12 or P016 which should
   get mapped to P010 and not YUV444P10.

2) Transcoding P016 content with nvenc should be possible in a pure
   hardware pipeline, and that can't be done if nvenc doesn't say it
   accepts P016. By mapping it to P010, we can use it, albeit with
   truncation. I have established that swscale doesn't know how to
   dither to 10bits so we'd get truncation anyway, even if we tried
   to do this 'properly'.
2018-03-02 14:52:48 -08:00
compat compat: remove in-tree NVidia headers 2018-02-27 16:22:12 +01:00
doc frame: add an av_frame_new_side_data_from_buf function 2018-03-01 20:37:18 +00:00
ffbuild Merge commit '17b6c7efb4' 2017-11-12 01:02:02 -03:00
fftools fftools/ffmpeg: replace call to av_strerror with av_err2str 2018-02-27 08:34:35 +01:00
libavcodec avcodec/nvenc: Declare support for P016 2018-03-02 14:52:48 -08:00
libavdevice avdevice: add android_camera indev 2018-02-22 00:29:27 +01:00
libavfilter avfilter/avf_concat: add next command 2018-03-01 12:54:06 +01:00
libavformat avformat/mxg: return reference counted packets 2018-03-02 12:26:09 -03:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil parseutils: add support for ms and us suffix for AV_OPT_TYPE_DURATION 2018-03-02 22:57:08 +01:00
libpostproc postproc: Drop deprecated qp typedef 2017-10-22 00:35:23 -03:00
libswresample swresample/rematrix: fix update of channel matrix if input or output layout is undefined 2018-02-19 08:32:25 +01:00
libswscale swscale: Add p016 output support and generalise yuv420p1x to p010 2018-03-02 14:52:48 -08:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests swscale: Add p016 output support and generalise yuv420p1x to p010 2018-03-02 14:52:48 -08:00
tools fftools, tools, examples: migrate to AVFormatContext->url 2018-01-28 23:06:43 +01:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore Remove the ffserver program 2018-01-06 18:31:37 +00:00
.travis.yml Merge commit '4809781586' 2017-10-28 15:08:31 -03:00
Changelog compat: remove in-tree NVidia headers 2018-02-27 16:22:12 +01:00
configure compat: remove in-tree NVidia headers 2018-02-27 16:22:12 +01:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL.md INSTALL: add markdown syntax 2014-05-28 22:38:38 +02:00
LICENSE.md Merge commit '4fef648d10' 2017-03-15 22:07:47 +01:00
MAINTAINERS Add myself as codec2 maintainer 2018-02-24 17:06:31 +01:00
Makefile lavd: add new API for iterating input and output devices 2018-02-06 18:57:42 +00:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE RELEASE: update for git after 3.4 branchpoint 2017-10-11 02:46:23 +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.