ca67a783ab
The current code will apply them if the options string does not contain a 'flags' substring, and will do so by appending the graph-level option string to the filter option string (with the standard ':' separator). This is flawed in at least the following ways: - naive substring matching without actually parsing the options string may lead to false positives (e.g. flags are specified by shorthand) and false negatives (e.g. the 'flags' substring is not actually the option name) - graph-level sws options are not limited to flags, but may set arbitrary sws options This commit simply applies the graph-level options with av_set_options_string() and lets them be overridden as desired by the user-specified filter options (if any). This is also shorter and avoids extra string handling.
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.