Thread: Why the video playback performance difference?
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reinob is offline reinob
2012-07-23 , 08:36
Posts: 1,808 | Thanked: 4,272 times | Joined on Feb 2011 @ Germany
#17
Originally Posted by Keferen View Post
video out to a tv shouldnt even bother with scaling, just decode. but its not like that. why?
Well that's the annoying this with this.. how do you call them, STANDARDS!

If you use TV out you are sending an ANALOG signal, which can be in one of PAL or NTSC. The N900 has to (1) decode the video from whatever digital format it has been encoded (e.g. H264, whatever) and (2) encode it so as to comply with the chosen standard (PAL/NTSC).

Otherwise your TV won't show anything (meaningful), or will even blow up. Who knows.