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Andreas Rheinhardt 3e0bd5064d avcodec/mpeg4videodec: Don't initialize unused RL VLCs 
The RLTables whose VLC tables are only used for intra blocks only use
the very first VLC table; yet all 32 have been initialized. This commit
stops this by switching to INIT_FIRST_VLC_RL. This saves 201624B from
the .bss segment; in case the decoder is actually used, this translates
into less memory used.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-01-25 14:51:53 +01:00
compat All: update names in copyright headers 2021-01-20 01:02:56 -06:00
doc avfilter/vf_lenscorrection: allow to change colors of unmapped pixels 2021-01-25 12:34:57 +01:00
ffbuild ffbuild: Refine MIPS handling 2020-07-23 16:30:02 +02:00
fftools ffmpeg_opts: remove lowres check 2021-01-21 10:22:41 -03:00
libavcodec avcodec/mpeg4videodec: Don't initialize unused RL VLCs 2021-01-25 14:51:53 +01:00
libavdevice lavd/dshow: Add namespace prefix to global functions 2021-01-21 20:02:23 -03:00
libavfilter avfilter/vf_lenscorrection: allow to change colors of unmapped pixels 2021-01-25 12:34:57 +01:00
libavformat lavf/http: treat 308 as 301 2021-01-25 09:36:47 +01:00
libavresample
libavutil Revert "avutil/timecode: fix sscanf format string with garbage at the end" 2021-01-23 19:54:14 +01:00
libpostproc lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump 2021-01-01 14:14:57 +01:00
libswresample swresample/audioconvert: Fix left shift of negative value 2020-09-30 10:50:45 +02:00
libswscale lsws/ppc/yuv2rgb: Fix transparency converting from yuv->rgb32. 2021-01-24 17:17:29 +01:00
presets
tests checkasm: add hevc_pel tests 2021-01-25 09:24:11 +01:00
tools tools/target_dem_fuzzer.c: Decrease maxblocks 2021-01-05 02:00:05 +01:00
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Changelog avcodec/dolby_e: Add a parser 2021-01-25 13:17:43 +01:00
configure configure: add fallback to $arch in msvc assembler check. 2021-01-25 09:09:00 +01:00
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MAINTAINERS MAINTAINERS: update names 2021-01-20 01:04:26 -06:00
Makefile tools/enum_options: fix build and add to Makefile 2020-11-20 15:20:24 +01:00
README.md
RELEASE RELEASE: We are after the 4.3 branch point, update for that 2020-06-10 00:20:24 +02:00

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.