c950beb68d
This also partially fixes assembling with MS armasm64 (via gas-preprocessor). The movrel macro invocations need to pass the offset via a separate parameter. Mach-o and COFF relocations don't allow a negative offset to a symbol, which is handled properly if the offset is passed via the parameter. If no offset parameter is given, the macro evaluates to something like "adrp x17, subpel_filters-16+(0)", which older clang versions also fail to parse (the older clang versions only support one single offset term, although it can be a parenthesis. Signed-off-by: Martin Storsjö <martin@martin.st> (cherry picked from commit 26d7af4c381ee3c7b13b032b3817168b84b98ca6)
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.