ced5c5fdb8
MATCH_PER_STREAM_OPT iterates over all options of a given OptionDef and tests whether they apply to the current stream; if so, they are set to ost->apad, otherwise, the code errors out. If no error happens, ost->apad is av_strdup'ed in order to take ownership of this pointer. But this means that setting it originally was premature, as it leads to double-frees when an error happens lateron. This can simply be reproduced with ffmpeg -filter_complex anullsrc -apad bar -apad:n baz -f null - This is a regression since 83ace80bfd80fcdba2c65fa1d554923ea931d5bd. Fix this by using a temporary variable instead of directly setting ost->apad. Also only strdup the string if it actually is != NULL. Reviewed-by: Marth64 <marth64@proxyid.net> 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.