[mythtv-users] 720p harder to decode than 1080i?
mythtv-users2 at dwilga-linux1.amherst.edu
Mon Nov 20 16:41:24 UTC 2006
At 8:55 AM -0500 11/20/06, Mark Chang wrote:
>I am assuming 720p is harder to decode than 1080i? I ask because it
>turns out that my recently-built HDTV Myth box doesn't have enough
>horsepower to play back some OTA recorded streams.
Because of the interlacing, the data stream for 1080i consists of
only 540 lines/frame, wheres 720p is truly 720 lines/frame. So 1080i
actually contains less detail per frame than 720p. That would explain
the difference in file size and processing requirements.
Dan Wilga "Ook."
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