Open source codecs and containers

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This is a listing of open-source multimedia codecs. That doesn't necessarily mean that further restrictions (such as software patents) don't exist for these codecs, which is the case for many of them. Note that codec is software, not a format — for example, video produced with the Xvid and FFmpeg MPEG-4 codecs is MPEG-4 ASP video.

1 Video codecs
2 Audio codecs
3 Text Codecs
4 See also

Video codecs

x264 - H.264 (MPEG-4 part 10) implementation. x264 is not a codec (encoder/decoder), it is just an encoder (it cannot decode video).
Xvid - MPEG-4 part 2 codec, compatible with DivX.
FFmpeg codecs - codecs in the libavcodec library from the FFmpeg project (FFV1, Snow, MPEG-1, MPEG-2, MPEG-4 part 2, MSMPEG-4, H.264, WMV2, SVQ3, MJPEG, HuffYUV, Indeo and others).
Tarkin - an experimental lossy video codec under development by the Xiph.org Foundation based on 3-D wavelet compression
Lagarith - lossless video codec
Theora - Based on VP3, part of the Ogg Project.
Dirac - Wavelet based codec created by the BBC.
Huffyuv - Lossless codec from BenRG.
OpenAVS

Audio codecs

FLAC - Lossless compression.
iLBC - Low bitrate voice compression.
LAME - Lossy compression (MP3 format).
Musepack - Lossy compression; based on MP2 format, with many improvements.
Speex - Low bitrate compression, primarily voice; developed by Xiph.org.
TTA - Lossless compression
Vorbis - Lossy compression; developed by Xiph.org.
WavPack - Hybrid lossy/lossless
OpenAVS
FFmpeg WMA - Reverse engineered WMA Standard codec
FAAC and FAAD2 - open-source implementation of Advanced Audio Coding

Text Codecs

(generally used for subtitles/closed captioning)

Writ.

Open source codecs and containers

Contents

Video codecs

Audio codecs

Text Codecs

See also