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Posted by Jeff Rife on 04/14/06 17:02
~P~ (bmxtrix2005@cox.net) wrote in alt.tv.tech.hdtv:
> I don't know why you call 480i/24 - psuedo 24 frame encoding.
Because the MPEG-2 header says "29.97 fps". That's the output rate,
and that's what the data is encoded for. If the header said "24 fps",
then in order to output 60i, the decoder would have to do some real work.
Instead, the decoder merely says "what's the next field? OK, output it".
Any pulldown has already been done by the encoder, so the player doesn't
have to do any work, just as I said, and exactly the opposite of what
you said.
On the other hand, if HD-DVD and Blu-Ray are encoded at 24 fps for movie
material, then the player *will* have to do a *lot* of work to output
either 60i or 60p.
--
Jeff Rife | "I'll be back in five or six days."
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| "No, you'll be back in five or six pieces."
| -- "The Lost World"
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