Projects / dirac / Releases

All releases of dirac

  •  12 Feb 2009 06:44
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    Release Notes: Minor bugs have been fixed. Compression efficiency is improved. A DirectShow filter to play back Dirac files in Windows Media Player and MPlayer Classic has been released. A utility called ffmpeg2dirac has been released to transcode any multimedia format that can be decoded by FFmpeg to Dirac (for video) and Vorbis (audio) muxed in Ogg.

    •  17 Sep 2008 05:04
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      Release Notes: Encoder classes have been refactored to make coding processes more clear. Minor bugs have been fixed. Compression efficiency is improved. A DirectShow filter to play back Dirac files in Windows Media Player has been released. Support for Dirac encoding, decoding, and muxing via Dirac libraries and Schroedinger libraries is now available in FFmpeg and MPlayer.

      •  04 Jun 2008 13:01
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        Release Notes: Support for Ultra High Definition video formats was added. Compression efficiency was improved. Major bugs that caused crashes and permanent loops were fixed. Patches to enable Dirac playback in MPlayer were released. A DirectShow filter to enable playback of Dirac files in Windows Media Player was released. The API has changed, so all applications using Dirac libraries need to be rebuilt.

        •  26 Jan 2008 23:15
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          Release Notes: This is a minor release that complies with Dirac Bytestream Specification 2.1.0. Bugs in the motion compensation block weighting matrix and in the constant bit rate module when encoding I-frame only sequences were fixed. Bugs in the Dirac patches for MPlayer and FFmpeg and the Dirac DirectShow Filter were fixed.

          •  23 Jan 2008 07:36
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            Release Notes: This is a major release that complies with the Dirac Bytestream Specification 2.0.0. The specification can be downloaded from http://dirac.sourceforge.net/specification.html. Quantiser selection, motion compensation, and constant bit-rate coding performance have been improved. Bugs in constant bit-rate coding mode, dc value prediction in motion decoding, and handling concatenated Dirac bytestreams have been fixed. The encoder and decoder APIs have changed. New patches have been released for MPlayer and FFMpeg. A new version of the DirectShow filter has been released to comply with Dirac 0.9.0.

            •  02 Oct 2007 13:22
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              Release Notes: This is a major release to comply with the latest version of the Dirac Bytestream Specification. Support has been added for interlaced coding. Motion Estimation and Constant bit-rate coding have been improved. The encoder and decoder API have changed. New patches have been released for MPlayer and FFMpeg. A new version of the DirectShow filter has been released to comply with Dirac 0.8.0.

              •  09 May 2007 17:48
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                Release Notes: This is a major release to comply with the latest version of the Dirac Bytestream Specification. Support has been added for constant bit-rate coding in addition to existing constant quality coding. Arithmetic coding and motion vector data partitioning have been improved. The encoder and decoder API have changed. New patches have been released for MPlayer and FFMpeg. A new version of the DirectShow filter to comply with Dirac 0.7.0 has been released.

                •  13 Jun 2006 15:29
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                  Release Notes: This is a major release to comply with the latest version of the Dirac Bytestream Specification. The encoder and decoder API have changed. New patches have been released for MPlayer and FFMpeg. A new version of the DirectShow filter to comply with Dirac 0.6.0 has been released.

                  •  05 Dec 2005 20:17
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                    Release Notes: This is a minor release with improvements to decoding and encoding speed. New patches have been provided to include Dirac support in the latest versions of MPlayer, ffmpeg, and transcode (via ffmpeg). The DirectShow filter released with the previous release (0.5.1) is compatible with this release. Support for lossless encoding has been added to the encoder via a command line argument. The bit stream syntax has not changed from 0.5.3, so Dirac bitstreams coded using version 0.5.3 can be decoded by this release.

                    •  23 Aug 2005 16:39
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                      Release Notes: This is a minor release with algorithmic improvements to motion estimation and chroma fidelity and arithmetic coding. Decoding speed has improved by 20-25%. The bitstream has changed, so files encoded using earlier versions will be incompatible with this release. Patches have been provided to include Dirac support in MPlayer, ffmpeg, and transcode (via ffmpeg). The DirectShow filter released with the previous release (0.5.1) is compatible with this release.

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