[mythtv-users] RFC: backend transcode on the fly

Brian Wood beww at beww.org
Tue Apr 17 17:56:17 UTC 2007


On Apr 17, 2007, at 10:13 AM, Yan Seiner wrote:

> I've been kicking this around for a while and I figure I can air it  
> out
> and see what happens.
>
> I have several front ends, none of which can display true HD.  At best
> they do 1280x1024; my main LCD TV is 1280x720p.
>
> AFAIK decoding of the stream from HD and rescaling to the display
> resolution is the CPU intensive part.
>
> Could this be offloaded to the backend?
>
> I'm thinking of a on-the-fly transcode that the backend would use to
> reduce the resolution so it's suitable for the frontend.
>
> This would let me use some of my lower-powered FEs to display HD  
> content
> - albeit at a reduced resolution...
>
> Comments?  Pipe dream?
>

Why "on the fly"? Why not just transcode it as a user job and leave  
it that way. You could save the original if you wanted to as well,  
with the obvious storage costs.

I'm sure what you suggest could be done, given enough CPU horsepower,  
but if your present setup can do it without any changes I'd think  
about doing it that way.

Brian Wood
beww at beww.org





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