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heimdallr 3f949b7a64 avcodec/imgconvert: Fix loss mask bug in avcodec_find_best_pix_fmt_of_list() 
example:

AVPixelFormat pixFmts[] = { AV_PIX_FMT_RGB24, AV_PIX_FMT_RGBA };
int loss = 0;
AVPixelFormat best = avcodec_find_best_pix_fmt_of_list(pixFmts, AV_PIX_FMT_BGRA, 1, &loss);

best is AV_PIX_FMT_RGB24. But AV_PIX_FMT_RGBA is better.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 354b26a394)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-04-13 00:35:15 +02:00
compat
doc Update for 3.3.6 2017-12-30 21:13:19 +01:00
libavcodec avcodec/imgconvert: Fix loss mask bug in avcodec_find_best_pix_fmt_of_list() 2018-04-13 00:35:15 +02:00
libavdevice
libavfilter avfilter/vf_signature: use av_strlcpy() 2018-04-13 00:35:15 +02:00
libavformat avformat/mov: Move +1 in check to avoid hypothetical overflow in add_ctts_entry() 2018-04-13 00:35:15 +02:00
libavresample
libavutil avutil/common: Fix integer overflow in av_clip_uint8_c() and av_clip_uint16_c() 2018-04-13 00:35:15 +02:00
libpostproc
libswresample swresample/rematrix: fix update of channel matrix if input or output layout is undefined 2018-02-19 09:06:29 +01:00
libswscale
presets
tests avcodec/mpeg2dec: Fix field selection for skipped macroblocks 2018-04-13 00:35:15 +02:00
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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.
  • ffserver is a multimedia streaming server for live broadcasts.
  • 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.