Dirac is a general-purpose video codec aimed at resolutions from QCIF (176×144) to HDTV (1920×1080), progressive or interlaced. It uses wavelets, motion compensation, and arithmetic coding, and aims to be competitive with other state-of-the-art codecs. The Open Source implementation provides a C++ library with an encoder and decoder.

MediaCoder 0.6.0.3690 has included Dirac video encoder 0.7.0.

Changes of Dirac 0.7.0

• Added support for Constant Bit Rate Coding.
• Improved quality of encoded pictures at low bit-rates and
• Improved motion vector data partitioning to allow for
• Added support for integral motion vector precision.
• Improved Arithmetic coding.
• Solution and Project files for Visual C++ 2005 Express
• Encoder and Decoder API header files have changed so
• Released patches to MPlayer, FFmpeg to comply with this elease. Earlier patch to transcode can be used with elease.
• DirecShow Filter released to be able to play back Dirac 0.7.0 files in Windows Media Player.