[Asterisk-Users] faster transcoding possible

[Zoa]

We had a look at this,

We think it can be done, but might take a one year full time equivalent 
of a c programmer to actually do it.
And when its done, cards might have changed.

The big problem is the lack of documentation and the early stage of the 
research. All algorithms should be ported to it, so far only some basic 
operations can be done.

Zoa

Andrew Kohlsmith wrote:

>On Wednesday 02 November 2005 14:11, trixter aka Bret McDanel wrote:
>  
>
>>According to http://www.extremetech.com/article2/0,1697,1880749,00.asp
>>ATI is delivering a GPU enabled transcoding method that cuts video
>>transcoding down to 1/5 the time it would take the cpu.  This might also
>>be applied to audio codecs in theory (I havent looked into it enough).
>>    
>>
>
>This has come up several times over the years.  YES a GPU might be able to 
>take some CPU load off but you now add latency because you're shipping data 
>to and from main memory to the GPU and back.   It's also been stated that AGP 
>transfers are optimized for memory to the video card and not the other way 
>around, so you may add more latency than you expect.
>
>Using the GPU for video codec work makes sense because once it's off on the 
>video card it ain't coming back.  This is most certainly not the case with 
>audio.  :-)
>
>Nobody can really truly say until there are some benchmarks run, and nobody's 
>stopping anyone from exerting the effort.  It just takes someone curious 
>enough to acutally go do it.
>
>-A.
>_______________________________________________
>--Bandwidth and Colocation sponsored by Easynews.com --
>
>Asterisk-Users mailing list
>Asterisk-Users at lists.digium.com
>http://lists.digium.com/mailman/listinfo/asterisk-users
>To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
>  
>