19ae873252
Up until now, the wav muxer used a reallocation of the form ptr = av_realloc(ptr, size); that leaks upon error. Furthermore, if a failed reallocation happened when writing the trailer, a segfault would occur due to avio_write(NULL, size) because the muxer only prints an error message upon allocation error, but does not return the error. Moreover setting the pointer to the buffer to NULL on error seems to be done on purpose in order to record that an error has occured so that outputting the peak values is no longer attempted. This behaviour has been retained by simply disabling whether peak data should be written if an error occurs. Finally, the reallocation is now done once per peak block and not once per peak block per channel; it is also done with av_fast_realloc and not with a linear size increase. 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.