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Martin Storsjö f33f728470 arm: swscale: Only compile the rgb2yuv asm if .dn aliases are supported 
Vanilla clang supports altmacro since clang 5.0, and thus doesn't
require gas-preprocessor for building the arm assembly any longer.

However, the built-in assembler doesn't support .dn directives.

This readds checks that were removed in d7320ca3ed, when
the last usage of .dn directives within libav were removed.

Alternatively, the assembly could be rewritten to not use the
.dn directive, making it available to clang users.

Signed-off-by: Martin Storsjö <martin@martin.st>
2018-03-31 21:54:56 +03:00
compat compat: remove in-tree NVidia headers 2018-02-27 16:22:12 +01:00
doc avfilter/avf_showvolume: let fade be also exactly 0 2018-03-31 09:27:57 +02:00
ffbuild Merge commit '17b6c7efb471e8ff1b8a7271f6531ba1d52bf69c' 2017-11-12 01:02:02 -03:00
fftools fftools/ffmpeg: Remove an unused variable. 2018-03-30 12:01:58 +02:00
libavcodec Merge commit 'ab05d3934de8e932dbd77979a687e6598e67535c' 2018-03-30 15:47:31 -03:00
libavdevice kmsgrab: add category for kmsgrab 2018-03-26 22:39:12 +01:00
libavfilter avfilter/avf_showvolume: let fade be also exactly 0 2018-03-31 09:27:57 +02:00
libavformat Merge commit 'a2fc8dbae85339d1b418d296f2982b6c04c53c57' 2018-03-29 21:56:19 -03:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil Merge commit '3a7b4ae62c798edbd82bcd8fef863c74ed2acd4a' 2018-03-30 15:48:17 -03:00
libpostproc
libswresample swresample/rematrix: fix update of channel matrix if input or output layout is undefined 2018-02-19 08:32:25 +01:00
libswscale arm: swscale: Only compile the rgb2yuv asm if .dn aliases are supported 2018-03-31 21:54:56 +03:00
presets
tests fate: add test for eac3 dependant stream 2018-03-30 14:05:10 -03:00
tools fftools, tools, examples: migrate to AVFormatContext->url 2018-01-28 23:06:43 +01:00
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.gitignore Remove the ffserver program 2018-01-06 18:31:37 +00:00
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Changelog Merge commit 'a2fc8dbae85339d1b418d296f2982b6c04c53c57' 2018-03-29 21:56:19 -03:00
configure arm: swscale: Only compile the rgb2yuv asm if .dn aliases are supported 2018-03-31 21:54:56 +03:00
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MAINTAINERS MAINTAINERS: add myself to mediacodec 2018-03-06 13:54:35 -08:00
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

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.