0a06f5aca5
Up until now, ff_wmv2_decode_secondary_picture_header() only set the mb_type array for non I-pictures, so that the decoding process uses the earlier values of this array; this affects the output of the wmv8-x8intra FATE-test (which this patch therefore updates). These earlier values were set when decoding earlier frames or when the buffer was initially zero-allocated. A consequence of this is that the output of this test would be random if ff_find_unused_picture() would select the unused picture to return at random. Furthermore decoding from a keyframe onwards depends upon the earlier state of the decoder. This patch therefore zeroes said array when decoding an I picture. (It is not claimed that zero is the right value to fill the array with. I just don't know.) Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.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.