AVS-the-codec; any news or analysis?

[benwaggoner]

I'm hacking away at the 2nd edition of my compression book. As it's been nearly seven years, there's rather a lot that's new in the compression world :).

One nice thing is that the number of codecs of ongoing relevance is way, way down. But there's a few on the horizon I'm having trouble getting good info on.

Notably, the "Audio Video Standard" AVS codec from China, targeting the CBHD HD optical disc format. I haven't seen it discussed here in ages (of course, a keyword search on "AVS" has rather a lot of false positives for the other AVS).

There's this:
http://en.wikipedia.org/wiki/Audio_Video_Standard

And this Sourceforge project (with no activity in four months):
http://sourceforge.net/projects/openavs/
They have an encoder download, but the installer is in Chinese.

The actual avs.org.cn website appears to be down.

Anyway, anyone have any idea on status? Anyone play around with the bits yet? Anything interesting?

[gswudi]

http://www.avsvod.com/download/down.html

You can get decoder and player and AVSCreator here.

try AVSCreator to analysis it.

[*.mp4 guy]

These (http://forum.doom9.org/search.php?searchid=4390983) threads contain essentially all of the information on avs that I have ever found.

IIRC this thread (http://forum.doom9.org/showthread.php?t=107664&highlight=china+avs) had the most information.

[Lyris]

When can I preorder? :D

[gswudi]

www.avsvod.com

http://www.avsvod.com/download/down.html

This website established by The Institute of Digital Media, Peking University.

jliu@jdl.ac.cn
maybe you can get infomation.

[bond]

ffmpeg has avs support iirc

[Mr VacBob]

It has an AVS decoder, but no encoder; you might be able to study it. I only remember it's there because the asm optimizations always break Apple's gcc.

The loop filter and MVs are the same as H264 but the rest looks much simpler (universal(?) VLC only, no interlacing).

[roozhou]

Well, CAVS is widely used in China's DVB-C

[CruNcher]

I always see AVS like the Power of H.264 with the computational needs of WMV :) but as it's based on H.264 and practically uses the same background i don't think it's interesting @ all just for Chinese to save Licenses and being more competitive on their market and as we can see they quiet successful though we shouldn't forget China is still a Military Dictatorship so they always gonna do their own thing and be supported by companies that have their origin their (H.264 patent holders) ;)

[xxthink]

the opensource avs transcoder can be downloaded from
http://code.google.com/p/avs-transcoder/downloads/list
Any question can contact me: zhihang.wang@gmail.com

[CruNcher]

Yeah i tried that back then xxthink but i have had hard time to find out how to encode anything with it, i tried to decipher the GUI but to much options and im not good @ chinese :( i think i found at least the file loading and encoding settings though ;) also the AVS Dshow filter seem very aggressive once in the Dshow chain they can cause a lot of problems with a lot of playback scenarios (for example they like to load .avs (avisynth scripts) )

[shark37]

Intel® Integrated Performance Primitives v6.0 Update 1 for Windows* OS
Release Notes
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6.0:
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New features and enhancement in Intel IPP samples, download completed samples from Intel IPP Sample Website (http://www.intel.com/software/products/ipp/samples.htm)
o New Video AVS Codec Support for both Decoding and Encoding (UMC Sample)

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[roozhou]

Yeah i tried that back then xxthink but i have had hard time to find out how to encode anything with it, i tried to decipher the GUI but to much options and im not good @ chinese :( i think i found at least the file loading and encoding settings though ;) also the AVS Dshow filter seem very aggressive once in the Dshow chain they can cause a lot of problems with a lot of playback scenarios (for example they like to load .avs (avisynth scripts) )

Have you ever succeeded in transcoding something? Always failing for me.

It seems they use the grabber filter from dxsdk sample to grab frames from dshow graph.