Chinese AVS: Difference between revisions
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* Samples: http://www.avs.org.cn/fruits/, the first of them also is at http://samples.mplayerhq.hu/AVS/stream01.avs | * Samples: http://www.avs.org.cn/fruits/, the first of them also is at http://samples.mplayerhq.hu/AVS/stream01.avs ; http://www.avs.org.cn/fruits/softList.asp | ||
* Windows Transcoder (with 'Video for Windows' Interface): http://www.avs.org.cn/DownSys/download.asp?id=6 | * Windows Transcoder (with 'Video for Windows' Interface): http://www.avs.org.cn/DownSys/download.asp?id=6 | ||
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=== AVS1-P2 (Video for HD - JZ an ZQ profiles) === | === AVS1-P2 (Video for HD - JZ an ZQ profiles) === | ||
FFmpeg contains a LGPL-licensed decoder for the JZ profile. GPL video decoders for the JZ profile are available from http://cosoft.org.cn/projects/avsdec/ and the [http://sourceforge.net/projects/openavs/ OpenAVS] project on SourceForge. | FFmpeg contains a LGPL-licensed decoder for the JZ profile and a patch for a matching encoder has been [http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-July/033286.html posted] to the [[FFmpeg]] development mailing list. GPL video decoders for the JZ profile are available from http://cosoft.org.cn/projects/avsdec/ and the [http://sourceforge.net/projects/openavs/ OpenAVS] project on SourceForge. | ||
Reference software can be found at http://www.avs.org.cn/fruits/software/rm52j_r1.zip. This video codec has many similarities to H.264 while avoiding the most complex features like [[CABAC]] or [[MBAFF]]. | Reference software can be found at http://www.avs.org.cn/fruits/software/rm52j_r1.zip. This video codec has many similarities to H.264 while avoiding the most complex features like [[CABAC]] or [[MBAFF]]. | ||
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=== AVS1-P9 (File format) === | === AVS1-P9 (File format) === | ||
The [http://www.avs.org.cn/DownSys/download.asp?id=6 Windows transcoder] is said to produce files in this format, | The [http://www.avs.org.cn/DownSys/download.asp?id=6 Windows transcoder] is said to produce files in this format, | ||
but the resulting files are basically of ISO 14496-12 format. | but the resulting files are basically of [[QuickTime_container|ISO 14496-12 format]]. | ||
=== General === | === General === | ||
For now only the AVS1-P1 and AVS1-P2 JZ profile are standardized, other parts are still in the works. | For now only the AVS1-P1 and AVS1-P2 JZ profile are standardized, other parts are still in the works. | ||
Latest revision as of 15:18, 15 May 2009
- Samples: http://www.avs.org.cn/fruits/, the first of them also is at http://samples.mplayerhq.hu/AVS/stream01.avs ; http://www.avs.org.cn/fruits/softList.asp
- Windows Transcoder (with 'Video for Windows' Interface): http://www.avs.org.cn/DownSys/download.asp?id=6
Chinese AVS is a set of standards like MPEG. It consists of:
AVS1-P1 (System for broadcast)
The Samples are said to be in this format, but they are basically MPEG PS files.
AVS1-P2 (Video for HD - JZ an ZQ profiles)
FFmpeg contains a LGPL-licensed decoder for the JZ profile and a patch for a matching encoder has been posted to the FFmpeg development mailing list. GPL video decoders for the JZ profile are available from http://cosoft.org.cn/projects/avsdec/ and the OpenAVS project on SourceForge. Reference software can be found at http://www.avs.org.cn/fruits/software/rm52j_r1.zip. This video codec has many similarities to H.264 while avoiding the most complex features like CABAC or MBAFF.
AVS1-P3 (Audio, 2 and 5.1 channels)
AVS1-P6 (DRM)
Recently China announced a new effort to start its own High Definition disc format, called CBHD. This includes AVS DRM and video specification according to news sources
AVS1-P8 (Video for mobile)
AVS1-P9 (File format)
The Windows transcoder is said to produce files in this format, but the resulting files are basically of ISO 14496-12 format.
General
For now only the AVS1-P1 and AVS1-P2 JZ profile are standardized, other parts are still in the works.