Welcome to the XAVS Home!

http://xavs.sourceforge.net/

AVS is the Audio Video Standard of China.  This project aims to implement high quality AVS encoder and decoder.

License

XAVS is open source software. All the source code is under the GPL license.
You can use XAVS on any computer, including a computer in a commercial organization.

The Main Features of XAVS Encoder

JiZhun Profile Encoder Features

8x8 transform
B-frame
CAVLC entropy coding
Intra: all macroblock types (8x8 with all 5 prediction modes)
Inter P: all partitions (from 16x16 down to 8x8)
Inter B: partitions from 16x16 down to 8x8 (including skip/direct)
Interlacing (PAFF)
Multiple reference frames
Ratecontrol: constant quantizer, constant quality, single or multipass ABR, optional VBV
Scenecut detection
Spatial and temporal direct mode in B-frames, adaptive mode selection
Parallel encoding on multiple CPUs

 Mobile Profile Encoder Features

8x8 transform
B-frame
CAVLC entropy coding
Intra: all macroblock types (8x8 with all 5 prediction modes)
Inter P: all partitions (from 16x16 down to 8x8)
Inter B: partitions from 16x16 down to 8x8 (including skip/direct)
Interlacing (PAFF)
Multiple reference frames
Ratecontrol: constant quantizer, constant quality, single or multipass ABR, optional VBV
Scenecut detection
Spatial and temporal direct mode in B-frames, adaptive mode selection
Parallel encoding on multiple CPUs
Adaptive block size transform and prediction selection for Intra Frame
Adaptive block size transform selection for Inter Frame
1/8 Interpolation
Weighted Quantization and user defined quantization matrix
Constrained DC
L Slice Support

FAQ

1. Where can I get the latest codes?

Currently, we do not provide the binary package, please download the latest code with instructions in the FAQ.

https://sourceforge.net/projects/xavs/develop
svn co
https://xavs.svn.sourceforge.net/svnroot/xavs/trunk xavs

2. Where can I get help?

http://sourceforge.net/projects/xavs/forums
If you need help, you can ask help at the help section.
Or you can join the xavs-devel@freenode channel, we can talk and discuss your questions there.

And if you have some new open idea, please post a thread on the open discussion section.
You can also post your questions to the xavs maillist
xavs-develop@lists.sourceforge.net
xavs-develop@googlegroups.com

3. Is there any Maillist for xavs-development

If you have any questions about avs reference software and specification,
you can send mail to the mail-list.
xavs-develop@lists.sourceforge.net.
xavs-develop@googlegroups.com

If you want to subscribe to this mail list .
General information about the mailing list is at:
https://lists.sourceforge.net/lists/listinfo/xavs-develop

If you want to be a developer of xavs project .
About the xavs project, you can create an account and join the project
http://sourceforge.net/projects/xavs
And please refer to developer guide web page for more details.

 

 

xavs

2010-07-27

  • XAVS FFMPEG Support     

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    xavs

    2010-06-25

  • XAVS Developing Report AVS_M2708    

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    xavs

    2010-03-25

  • XAVS Performance Report AVS_M2689   

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    xavs

    2009-10-15

  • The XAVS Development RoadMap Release
     

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    xavs

    2009-11-30

  • The XAVS Encoder Features
     



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