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When seeking on multi-angle titles, libdvdnav does not lock on to the correct sectors initially as it seeks to find the right NAV packet. This manifests itself as two bugs: (1) When seeking on the first angle in a multi-angle segment, frames from another angle will appear (for example in intro or credits scenes). This issue is present in VLC also. (2) When seeking during a segment on angle n+1, the demuxer cannot deduce the right position from dvdnav and does not allow seeking within the segment (due to it maintaining a strict state). Correct the issue by switching to angle 1 before doing the seek operation, and skipping 3 VOBUs (NAV packet led segments) ahead where dvdnav will have positioned itself correctly. Reported-by: Kacper Michajlow <kasper93@gmail.com> Signed-off-by: Marth64 <marth64@proxyid.net>
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.