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The size of the video frame (FOBJ) of the old codecs (ANIMv0/1/2) can very reliably be determined: - ANIMv0/1 (=Rebel Assault 1) uses a 384x242 internal buffer for everything. The codec parameters only describe the size and offset of the specific FOBJ on that buffer. - ANIMv2 titles usually use one of the fullscreen codecs (37/47/48) as first FOBJ, and their dimensions can generally be trusted. - RA2 uses 424x260 as internal buffer, use that if encountered: 08PLAY.SAN does not use codec37 so we need to guess using the codec coordinates. - ignore sizes smaller than 2x2 or larger than 800x600. - some game videos have an initial fobj with either 1x1 or -1x-1 pixels in size, ignore them with a warning (Full Throttle and the Rebel Assault 2 xxRETRY.SAN videos). Once a known/valid dimension set has been discovered, use it and don't change it for subsequent FOBJs, rather clamp the large frame to the determined dimensions. Tested with RA1, RA2, Full Throttle, Dig, Outlaws, SotE and MotS videos. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
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 means to alter decoded audio and video through a directed graph of connected 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.