strange quicktime fps 30.27
by charlie canfield
on
Apr 12, 2008 at 2:56:19 am
anyone hear of this:
i created a quicktime test movie in a 2d animation program at 29.97, and when i import it into an ae project, ae wants to read it as '30.27 fps', which i've never encountered, even doing this kind of thing a lot.
another curiosity: if i open said quicktime test IN quicktime, no frame rate is given in 'get info'. i created the test in a 2d program called mirage, which is sometimes buggy, but i've never seen this before. in ae i opted to interpret the movie as 29.97 and it seems to work ok. i'm starting a big live action/animation project so i'd love to hear anyone's thoughts on this.
by the way, i'm running qt pro 7.4.1. so the render issues aren't issues anymore. i've been delaying the 7.4.5 update to see if anyone's issuing warnings, but so far it sounds fine, no?
Re: strange quicktime fps 30.27 by Dave LaRonde on Apr 14, 2008 at 2:57:42 pm
What codec did you use when you made the test movie? If it was something like MPEG 1, MPEG 2, H.261, H.264 or MP4, which use interframe (aka temporal) compression, you might be getting false frame rate readings.
I stress "might", because I don't know for a fact that this can happen.
Try a test movie using the Animation codec or Photo JPEG and seee what happens.
Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
