[x264-devel] multi core encoding / interlaced mode

tanyan tanyan2008 at yahoo.com
Thu Sep 27 03:56:33 CEST 2007


Hi, Degiorgi,

You must program multicore x264 conpression for it. Or
you will start different thread for different channel
on each CPU. 

If progress mode decode as interlace, many problems
can happen.

BR
Jack
--- "Degiorgi, Marco" <degiorgi at eurovision.net> wrote:

> Hi,
>  
> I'm using VLC to stream using x264 codec on a
> bi-quadcore intel on a Tyan
> S9626 motherboard. I noticed only a single core is
> used while compressing.
> If the size is full SD (square pixel 768x576), one
> core is clearly not
> enough (toping at 100% and framerate is lower than
> natural 25). 
>  
> How to use all (8) cores of the server in order to
> stream live full SD or
> even HD ?
>  
> Another small thing: when using the interlace mode
> (50i) of x264, the
> decoding VLC produces a grey picture with errors
> macroblocs.
>  
> Thanx in advance for your answer.
> 
> Marco DEGIORGI
> European Broadcasting Union - www.ebu.ch
> <outbind://159/www.ebu.ch> 
> Eurovision Technical Developments -
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