You've already forked FFmpeg
mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-08-10 06:10:52 +02:00
0321370601
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.
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides a mean to alter decoded Audio and Video through chain of filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements 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,ismindexandqt-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.