[mythtv-users] Strange X CPU usage for 720p input streams

Indulis Bernsteins indulis.b at au1.ibm.com
Tue Jun 20 04:40:45 UTC 2006


>X still has high CPU watching
>recorded 720p programs.  Not quite sure why that would be.

Makes sense- 720P sends out 720 lines *every* frame, 1080i sends out 1080 
lines every 2 frames (ie 540 lines every frame).  From a a processing 
point of view, 720p is like 1440i, so you'd expect about 30% more CPU to 
decode and cope with the video data coming in.

Indulis
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