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Michael Niedermayer 4325527e1c postproc/postprocess_template: Avoid using %4 for the threshold compare 
This avoids problems if %4 is the stack pointer
the constraints do not allow %4 to be the stack pointer but gcc 9 may
no longer support specifying such constraints

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-12-22 17:41:44 +01:00
compat additional math.h functions for djgpp 2018-11-28 22:16:07 +11:00
doc APIChanges: add missing entry for SMPTE2094-40 HDR Dynamic metadata API 2018-12-21 21:24:00 -03:00
ffbuild Merge commit '17b6c7efb471e8ff1b8a7271f6531ba1d52bf69c' 2017-11-12 01:02:02 -03:00
fftools ffmpeg: improve the intra stream discontinuity message 2018-12-18 21:04:57 +02:00
libavcodec lavc/opus_rc: Cast a const pointer to uint8_t *. 2018-12-22 00:15:16 +01:00
libavdevice lavd/v4l2: Use "int request" as second parameter for ioctl() on Android. 2018-12-11 00:49:22 +01:00
libavfilter avfilter/af_sofalizer: fix non-power of 2 IR length filtering in time domain 2018-12-22 16:19:21 +01:00
libavformat avformat/vividas: check if viv->sb_pb is not NULL 2018-12-22 13:36:36 +01:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil Add HDR dynamic metadata struct (for SMPTE 2094-40) to libavutil 2018-12-21 17:52:00 +01:00
libpostproc postproc/postprocess_template: Avoid using %4 for the threshold compare 2018-12-22 17:41:44 +01:00
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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.