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Peter Ross d8ebfd1bdf avcodec/vp6: select idct based (loosely) on number of coefficients decoded 
The VP3/4/5/6 reference decoders all use three IDCT versions: one for the
DC-only case, another for blocks with more than 10 coefficients, and an
optimised one for blocks with up to 10 AC coefficents. VP6 relies on the
sparse 10 coefficient version, and without it, IDCT drift occurs.

Fixes: https://trac.ffmpeg.org/ticket/1282

Signed-off-by: Peter Ross <pross@xvid.org>
2019-01-26 23:49:09 +11:00
compat additional math.h functions for djgpp 2018-11-28 22:16:07 +11:00
doc avfilter/afade+acrossfade: allow skipping fade on inputs 2019-01-24 22:08:34 +05:30
ffbuild
fftools ffmpeg_opt: Print a warning if more than one -vf/-af option was specified. 2019-01-15 00:27:05 +01:00
libavcodec avcodec/vp6: select idct based (loosely) on number of coefficients decoded 2019-01-26 23:49:09 +11:00
libavdevice lavd/iec61883: Fix the include path for poll.h. 2019-01-16 00:13:49 +01:00
libavfilter lavf/vaapi_deinterlace: return error if mode unsupported 2019-01-25 16:55:01 +08:00
libavformat lavf/supenc: Remove some unneeded casts. 2019-01-24 13:08:27 +01:00
libavresample
libavutil avcodec/mips: [loongson] optimize put_hevc_qpel_hv_8 with mmi. 2019-01-22 00:46:36 +01:00
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/yuv2rgb: Return a more specific error code from ff_yuv2rgb_c_init_tables() 2019-01-01 21:11:47 +01:00
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tests avcodec/vp6: select idct based (loosely) on number of coefficients decoded 2019-01-26 23:49:09 +11:00
tools tools/target_dec_fate: Add entries from around issue 500 to 700 2019-01-04 20:32:03 +01:00
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README.md
RELEASE RELEASE: bump to 4.1.git 2018-11-02 00:55:49 +01:00

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.