[mythtv-users] Watching TV without recording?

steve at nexusuk.org steve at nexusuk.org
Sat Feb 21 18:49:59 EST 2004


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On Sat, 21 Feb 2004, Niklas Brunlid wrote:

> Anyway, my question is: why must myth record/encode/decode if all you're 
> doing is watching TV? Would the delay from jumping to LiveTV Pause mode be 
> unacceptably long? I'm asking because it seems strange to use 50-80% of 
> the CPU to do something that XawTV and TVTime do automatically.

I would've thought it obvious that if you want to be able to rewind a live 
show then you have to be recording it all the time.  No way around that.
One thing that would be nice, and I think has been suggested before, would 
be for systems that have the frontend and backend on the same box to 
display the original (unencoded) video when you're running in real time.  
i.e. you would record and encode as normal, but if the player is playing 
in real time instead of playing a delayed video then rather than bothering 
to decode it, the system could just display a copy of the unencoded video.  
This would mean you wouldn't get codec artifacts and remove the CPU time 
needed to decode the video unless you had rewound or paused the video. 
(Hell, the backend could probably dump the frames directly into shared 
memory rather than having to do message passing to the frontend).
But for the amount I use Live TV these days (i.e. only really when 
watching the morning news) it's not really worth a lot of effort.

- -- 

 - Steve                                             http://www.nexusuk.org/

     Servatis a periculum, servatis a maleficum - Whisper, Evanescence

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