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Gyan Doshi 1c76134fe3 avfilter/drawbox+drawgrid - add option to prevent overwriting of source pixels
If the user-supplied color in drawbox and drawgrid filters is non-opaque,
the box & grid painting overwrites the input's pixels (including alpha).
Users typically expect the alpha of the specified color to only act as a key
for compositing on top of the main input.

Added option allows users to select between replacement and composition.
Tested and documented.
2017-12-14 13:44:45 -09:00
compat compat/cuda: Pass a logging context to load functions 2017-11-20 15:47:05 +00:00
doc avfilter/drawbox+drawgrid - add option to prevent overwriting of source pixels 2017-12-14 13:44:45 -09:00
ffbuild Merge commit '17b6c7efb471e8ff1b8a7271f6531ba1d52bf69c' 2017-11-12 01:02:02 -03:00
fftools ffmpeg_opt: Constify hwaccel pointer. 2017-11-29 00:15:10 +01:00
libavcodec Merge commit '508378556631dc18d32247b4a4e35703758e1ca9' 2017-12-14 19:05:55 -03:00
libavdevice lavd/alsa: Double maximum alsa buffer size. 2017-11-27 14:05:28 +01:00
libavfilter avfilter/drawbox+drawgrid - add option to prevent overwriting of source pixels 2017-12-14 13:44:45 -09:00
libavformat lavf/mpegts: mark packets with TEI flag as corrupted 2017-12-13 20:07:00 -06:00
libavresample
libavutil libavutil: Add saturating subtraction functions 2017-12-04 07:28:45 +00:00
libpostproc
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 checkasm/vf_hflip : add test for vf_hflip byte and short simd 2017-12-13 11:34:29 +01:00
tools patcheck: Add 'threshhold' to common typo list 2017-12-13 12:25:44 +01:00
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Changelog avformat: add NSP demuxer 2017-12-08 16:01:09 +01:00
configure configure: Move V4L2 M2M help line to the hardware library section 2017-12-10 17:15:06 +00:00
CONTRIBUTING.md
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MAINTAINERS MAINTAINERS: add myself as videotoolbox* maintainer 2017-11-13 19:54:20 +01:00
Makefile Makefile: fix distclean target 2017-11-14 10:09:40 -03:00
README.md
RELEASE

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.