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Lynne 238b2d4155 ac3enc: halve the MDCT window size by using vector_fmul_reverse This brings the encoder in-line with the rest of ours and saves on a bit of memory.		2021-01-14 01:44:18 +01:00
compat	avfilter/scale_cuda: add lanczos algorithm	2020-11-04 01:43:21 +01:00
doc	ac3enc_fixed: convert to 32-bit sample format	2021-01-14 01:44:12 +01:00
ffbuild	ffbuild: Refine MIPS handling	2020-07-23 16:30:02 +02:00
fftools	doc/ffmpeg: document max_error_rate	2021-01-10 19:14:37 +05:30
libavcodec	ac3enc: halve the MDCT window size by using vector_fmul_reverse	2021-01-14 01:44:18 +01:00
libavdevice	kmsgrab: Do not require the modifier to stay constant.	2021-01-13 23:08:02 +00:00
libavfilter	avfilter/vf_convolution: use correct stride variable	2021-01-10 17:27:27 +01:00
libavformat	avformat/allformats: test pointer to be used	2021-01-12 00:17:30 -03:00
libavresample	…
libavutil	lavu: support arbitrary-point FFTs and all even (i)MDCT transforms	2021-01-13 17:34:13 +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	lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump	2021-01-01 14:14:57 +01:00
presets	…
tests	ac3enc_fixed: convert to 32-bit sample format	2021-01-14 01:44:12 +01:00
tools	tools/target_dem_fuzzer.c: Decrease maxblocks	2021-01-05 02:00:05 +01:00
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.gitignore	…
.mailmap	mailmap: add entry for myself	2020-07-13 11:24:04 +08:00
.travis.yml	…
CONTRIBUTING.md	…
COPYING.GPLv2	…
COPYING.GPLv3	…
COPYING.LGPLv2.1	…
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CREDITS	…
Changelog	avfilter: add temporal midway equalizer filter	2021-01-01 12:43:42 +01:00
INSTALL.md	…
LICENSE.md	…
MAINTAINERS	smvjpegdec: merge into mjpegdec	2020-12-10 10:07:09 +01:00
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
configure	configure: update copyright year	2021-01-01 00:38:22 +01:00

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.