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Lynne 784c08af30 ac3enc: do not clip coefficients after transforms In either encoder, its impossible for the coefficients to go past 25 bits right after the MDCT. Our MDCT is numerically stable. For the floating point encoder, in case a NaN is contained, lrintf() will raise a floating point exception during the conversion.		4 years ago
compat	…
doc	ac3enc_fixed: convert to 32-bit sample format	4 years ago
ffbuild	…
fftools	doc/ffmpeg: document max_error_rate	4 years ago
libavcodec	ac3enc: do not clip coefficients after transforms	4 years ago
libavdevice	kmsgrab: Do not require the modifier to stay constant.	4 years ago
libavfilter	avfilter/vf_convolution: use correct stride variable	4 years ago
libavformat	avformat/allformats: test pointer to be used	4 years ago
libavresample	…
libavutil	lavu: support arbitrary-point FFTs and all even (i)MDCT transforms	4 years ago
libpostproc	lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump	4 years ago
libswresample	…
libswscale	lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump	4 years ago
presets	…
tests	ac3enc_fixed: convert to 32-bit sample format	4 years ago
tools	tools/target_dem_fuzzer.c: Decrease maxblocks	4 years ago
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README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

libavcodec provides implementation of a wider range of codecs.
libavformat implements streaming protocols, container formats and basic I/O access.
libavutil includes hashers, decompressors and miscellaneous utility functions.
libavfilter provides a mean to alter decoded Audio and Video through chain of filters.
libavdevice provides an abstraction to access capture and playback devices.
libswresample implements audio mixing and resampling routines.
libswscale implements 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, ismindex and qt-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.