2b3e9bbfb5
Apparently it can happen that a mp3 file has junk data between id3 tag and actual mp3 data. Skip this to avoid outputting nonsense timestamps. (Two packets had the same timestamps, because the mp3 parser failed to compute a frame duration.) In this case, the junk consisted of 1044 bytes of zero, which incidentally is the same size as normal mp3 frames in this stream. I suspect the mp3 was edited with some tool which wiped the Xing/LAME headers. Data near the end of the file suggests it was encoded with "LAME3.97", but the normal Xing/LAME headers are missing. So this could be "normal". mpg123 also attempts to skip at least 64KB of junk data by scanning for headers. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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.
- ffserver is a multimedia streaming server for live broadcasts.
- 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.