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Ruonan
d31915e9dc
LAME 3.101 adds pkg-config support, generating and installing lame.pc. Its autotools build also replaces the bundled mpglib decoder with external libmpg123. Static libmp3lame builds with decoding support therefore require additional libraries when linking. The existing check links only against libmp3lame and libm, ignoring pkg-config metadata and failing with undefined mpg123_* references. Try pkg-config first to obtain the compiler and linker flags, honoring the configured pkg-config flags for static dependencies. Keep the existing library check as a fallback for older LAME releases and other installations without usable pkg-config metadata. Signed-off-by: Ruonan <yu_ruonan@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 Forgejo or 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.
See https://ffmpeg.org/developer.html for more information.