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Andreas Rheinhardt 18bb323da4 avcodec/ac3enc: Simplify AC-3 bit counting 
When encoding E-AC-3, whether coupling is on or not determines whether
an additional frame based coupling exponent strategy element frmcplexpstr
(of size five bits) is present in the bitstream. So just add five to the
number of bits when counting them instead of adding 5*s->cpl_on (the
latter field is currently only 0 or 1, so it doesn't make a difference).

Furthermore, move some parts of the bit allocation that doesn't change
per-frame to count_frame_bits_fixed() (which is only run once during
init).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 		2021-04-02 12:19:07 +02:00
compat
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doc doc/muxers: add entry for A64 muxer 2021-04-02 15:21:32 +05:30
ffbuild
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fftools fftools/ffprobe: Add missing dispositions 2021-03-31 11:51:58 +02:00
libavcodec avcodec/ac3enc: Simplify AC-3 bit counting 2021-04-02 12:19:07 +02:00
libavdevice Bump minor versions after release branch 2021-03-20 01:02:11 +01:00
libavfilter avfilter/vf_codecview: Fix undefined left shifts of negative numbers 2021-04-01 14:49:41 +02:00
libavformat avformat/asf: Use ff_add_attached_pic() to read attached pics 2021-04-01 18:23:13 +02:00
libavresample
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libavutil avutil/pixdesc: Fix 1 << 32 2021-04-01 14:52:18 +02:00
libpostproc Bump minor versions after release branch 2021-03-20 01:02:11 +01:00
libswresample libswresample/audioconvert: Fix undefined NULL + 0 2021-04-01 14:15:20 +02:00
libswscale libswscale/x86/yuv2yuvX: Removes unrolling for mmx and mmxext 2021-04-01 20:47:52 +02:00
presets
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tests tests/checkasm/sw_scale: adds additional tests sizes for yux2yuvX 2021-04-01 20:47:52 +02:00
tools tools/target_dem_fuzzer: Fix packet leak 2021-04-01 10:10:21 +02:00
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Changelog avformat: add Changelog entry for librist and bump minor 2021-03-13 17:36:48 +01:00
INSTALL.md
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MAINTAINERS MAINTAINERS: add myself as adpcm maintainer 2021-03-25 12:51:10 +10:00
Makefile avcodec: move core AVCodecContext functions from util.c to a new file 2021-03-19 15:35:35 -03:00
README.md
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RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00
configure configure: select child muxers for rtp_mpegts 2021-03-21 15:50:23 +05:30

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.