[mythtv-users] Front End Decode of MPEG2 Streams

James Oltman cnlibmyth at gmail.com
Mon Jun 6 20:03:08 UTC 2005


AFAIK, the decoding all takes place on the front end.  I would say
ditch the 350 and get the 250 or go with the 500.

On 6/6/05, Pane, Chris <cpane at vanteon.com> wrote:
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>  
> 
> I have a question regarding exactly how myth handles video playback. 
> 
>   
> 
> I am in the process of architecting a myth setup. I want to have 1 back end
> server and multiple front ends. When a front end machine plays back an MPEG
> 2 file stored and managed on the back end, does it (front end) have to do
> the actual decoding of the video? I have searched around on this topic some,
> and many use the terms "Stream Video to the Front End" very loosely. In
> reality, is the MPEG 2 movie exported from the back end to the front end via
> simple NFS, and simply decoded on the front end? 
> 
>   
> 
> The reason I ask is that I am thinking about using the Hauppauge PVR350 card
> which has a MPEG Decode and Encode capability. If a PVR 350 is in the back
> end computer, is the decode capability wasted (Since the same computer is
> not being used as a front end) or will the back utilize the decode of the
> 350 to decode and stream the raw data to the front end for display. 
> 
>   
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> If the back end is simply using an NFS share to share the video data, and
> the front end must decode I will save some bucks and go with the PVR 250 on
> the back end. 
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> 
> Thanks 
> 
>   
> 
> -Chris 
> 
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