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Ray Tiley c837cd3d4d avdevice/decklink_dec: extract NTSC VANC 
This changes how NTSC VANC is extracted from the buffer. In NTSC the vanc data
is interleaved between luma and chroma, and not just the luma as in high
definition resolutions.

In my testing this allows a decklink card encoding valid NTSC closed
captions to pass the caption data to the x264 encoder.

Updated with reviews from Devin Heitmueller and Marton Balint.

Signed-off-by: Ray Tiley <raytiley@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
2018-02-13 00:13:21 +01:00
compat compat/os2threads: support static mutexes 2018-01-07 00:14:12 -03:00
doc avcodec/mpeg12enc: add support for specifying video_format in the sequence_display_extension 2018-02-13 00:13:21 +01:00
ffbuild Merge commit '17b6c7efb4' 2017-11-12 01:02:02 -03:00
fftools Revert "cmdutils: make use of new iteration APIs" 2018-02-08 13:20:36 -03:00
libavcodec avcodec/mpeg12enc: add support for specifying video_format in the sequence_display_extension 2018-02-13 00:13:21 +01:00
libavdevice avdevice/decklink_dec: extract NTSC VANC 2018-02-13 00:13:21 +01:00
libavfilter Merge commit 'c6bc18bc12' 2018-02-12 22:56:12 +00:00
libavformat lavf/matroskaenc: Force the minimum value for -reserve_index_space to 2. 2018-02-12 22:50:52 +01:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil Merge commit '4cf84e254a' 2018-02-11 23:08:48 -03:00
libpostproc postproc: Drop deprecated qp typedef 2017-10-22 00:35:23 -03:00
libswresample lswr/rematrix: Support s32p. 2017-11-01 01:04:43 +01:00
libswscale Fix missing used attribute for inline assembly variables 2017-11-13 03:58:34 +01:00
presets
tests fate: Fix fate-api reference files after AVCodecContext change 2018-02-12 22:54:23 +00:00
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 aptx: add raw muxer and demuxer for aptX HD 2018-02-09 22:10:55 +01:00
configure Merge commit 'fd36cf6bf6' 2018-02-11 23:18:59 -03:00
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
LICENSE.md Merge commit '4fef648d10' 2017-03-15 22:07:47 +01:00
MAINTAINERS MAINTAINERS: add myself for aptx.c 2018-02-10 16:53:43 +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.