marcos ashton
e18c8c533d
Test the integer math utility functions: av_gcd, av_rescale, av_rescale_rnd (all rounding modes including PASS_MINMAX), av_rescale_q, av_compare_ts, av_compare_mod, av_rescale_delta, and av_add_stable. Includes large-value tests that exercise the 128-bit multiply path in av_rescale_rnd. av_bessel_i0 is not tested since it uses floating point math that is not bitexact across platforms. Coverage for libavutil/mathematics.c: 0.00% -> 82.03% Remaining uncovered lines are av_bessel_i0 (float, 23 lines) and one edge case fallback in av_rescale_delta.
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.