[Ffmpeg-devel] Re: OpenAVS Project Help Wanted

Michael Niedermayer michaelni
Fri Jul 7 11:43:16 CEST 2006


On Fri, Jul 07, 2006 at 03:46:22AM -0400, zhou13 at netscape.net wrote:
> >Well, you're late.  We already have a decoder for Chinese AVS in 
> FFmpeg
> >since a few days.  It was written by Stefan Gehrer.  You are of course
> >welcome to contribute to it...
> >Diego
> I was just planning to vectorize the code and Stefan already did it.  
> The performance of the new code is /better/ than the official binary 
> Directshow filter version that is released by the original AVS 
> developers and better than the current openavs 1.0.3 release.  I would 
> still like to retro-fit Stefan's patch back to the OpenAVS project 
> because there wilare application scenarios that use only one codec ( 
> like in DVB and DMB ). So that will still be valuable. However, what is 

its possible to disable codecs in ffmpeg so ffmpeg could be compiled with
just c-avs support for such scenarios

> done now is only the decoder part. Is there anyone who likes to make an 
> open source AVS encoder?
> Also the audio part of the test bit streams you have access to are 
> MPEG-1 Layer 3.  This is not what the AVS audio standard going to use.  
> The audio standard uses techniques similar to AMR and is now in Final 
> Committee Draft phase.

may i ask why for example vorbis is not simply used as audio codec?
it has good compression/quality and as far as we know is not covered
by patents

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

In the past you could go to a library and read, borrow or copy any book
Today you'd get arrested for mere telling someone where the library is

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