mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2025-03-11 06:58:18 +00:00
FFmpeg git repo
This consists mostly of the following changes: - add newly supported pixel formats (RGB555LE, RGB565LE, BGR0) - select the ZMBV format (c->fmt) and bytes per pixel (c->bypp) based on avctx->pix_fmt - multiply widths/x-values by c->bypp, in places where bytes, not pixels, are expected - disable palette-writing code for non-palette pix_fmts - make a note about histogram[]'s datatype (it could need increasing if ZMBV_BLOCK is increased) - adjust the c->score_tab length to take up to (and including) 4 times the number of pixels in a block - initialise c->score_tab up to c->bypp * the number of pixels Note: the ZmbvFormat enum allows for additional bit depths: - 1,2,4-bit (palette) - 24-bit (RGB) At time of writing the specifics of these (e.g. channel order, bit alignment) are not currently defined, and DOSBox only implements support for 8/15/16/32 bpp. One might expect the 24-bit format - if implemented - to be BGR24, to have the same channel order as BGR0. However, the decoder in zmbv.c has been guessed to use RGB24, so I have chosen to not contradict this, and omitted specific support for this format. |
||
---|---|---|
compat | ||
doc | ||
ffbuild | ||
fftools | ||
libavcodec | ||
libavdevice | ||
libavfilter | ||
libavformat | ||
libavresample | ||
libavutil | ||
libpostproc | ||
libswresample | ||
libswscale | ||
presets | ||
tests | ||
tools | ||
.gitattributes | ||
.gitignore | ||
.travis.yml | ||
Changelog | ||
configure | ||
CONTRIBUTING.md | ||
COPYING.GPLv2 | ||
COPYING.GPLv3 | ||
COPYING.LGPLv2.1 | ||
COPYING.LGPLv3 | ||
CREDITS | ||
INSTALL.md | ||
LICENSE.md | ||
MAINTAINERS | ||
Makefile | ||
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.
- Additional small tools such as
aviocat
,ismindex
andqt-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.