On Wed, Apr 25, 2007 at 01:26:55PM +0300, Oded Arbel wrote:
> I don't think that is needed, and even if so - why 22 ? standard framerates
> are 29.997 [supposedly 30] for NTSC, 25 for PAL.
Standard frame rates are:
23.997 (24/1001) for NTSC film.
24 PAL (standard film).
25 PAL Video
29.997 (30/1001) NTSC video.
The problem with NTSC was supposed to be 24 and 30 FPS, but someone made
a rounding error. It did not matter with TV signals, but when video tape
came out and it did matter, it was too late.
DVDs can be found in all four standards. U.S. DVD players convert all 4
to 29.997 FPS for playback, Most none U.S. ones give you an option of
either a multistandard TV (25 and 29.997 FPS) or PAL (25 FPS).
Since computers display video at various rates depending upon the monitor
and resolution, it's better to stick to one of the standards. Since it
already is in 29.997, best leave it there.
Geoff.
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