71c908817e
Up until now, one last kind of unknown-length element hasn't been properly handled: Unknown-length elements that are supposed to be skipped, i.e. the level 1 elements that might reside after the clusters. This commit changes this. To do this, ebml_parse got a mode that essentially tries to skip everything except when parsing is needed (namely for unknown-length elements for which parsing is necessary as they can't be skipped). This mode is selected by using a NULL as destination where the parsed data should be written to. It is used to parse the level 1 elements in matroska_parse_cluster. The syntax list used for parsing must of course include links to the syntax of all the master elements that might need to be parsed. In other words: Instead of matroska_clusters (which contained every level 1 element except clusters as EBML_NONE elements designated to be skipped) matroska_segment is needed and used; matroska_clusters has been removed. Furthermore, matroska_segment has been reordered so that clusters are at the front as this is now the most common case for this list. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@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 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.