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There are three types of style entries which are redundant: a) Entries with length zero. They are already discarded. b) Entries that are equivalent to the default style: They can be safely discarded. c) Entries that are equivalent to the immediately preceding style if the start of the current style coincides with the end of the preceding style. In this case the styles can be merged. This commit implements discarding/merging in cases b) and c). This fixes ticket #9548. In said ticket each packet contained exactly one style entry that covered the complete packet with the exception of the last character (probably created by a tool that didn't know that the style's end is exclusive). Said style coincided with the default style, leading to a superfluous reset, which is now gone. Reviewed-by: Philip Langdale <philipl@overt.org> 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.