Mental capacity

[SUBMAN1]

My work load killing me (2 more weeks left of it though). My mental capacity for the last 1.5 months is less than 40%. I cannot think straight (as a few of you may have realized lately), nor do I have much energy. I need a mental break to come back online.

I'm currently working on something of a mental break you might say though - and yes my idea of a mental break is probably a lot different than yours - Dealing with reducing an NTSC source to 15 FPS. Now you may realize that NTSC is 29.97 FPS. Most movies are actually 23.976024 FPS, and the 29.97 FPS is achieved through a drop frame. However, interlaced material is running at double NTSC at 59.94 FPS but with alternating lines and your brain puts it together at 29.97 which is basically out of your comprehension anyway so it looks like a smooth picture because your brain can't think beyond this many FPS.

Now the trick is reducing normal interlaced material or progressive material down to 15 FPS smoothly since as you may guess, 15 does not divide into 29.97, so you will get a jerk in a movie - probably twice per second. I figured out that it is bad to go through a telecide and decimate since that makes the FPS worse due to less available frames to choose from when one does not line up properly. I should just probably skip the decimate cycle or use a blending frame instead and treat the video as a pure interlaced source in an effort for smoother playback.

My expertise comes from keeping video pure so that one does not know it was compressed in the first place. I now have this iRiver Clix that deals in MPEG 4 @ 15 FPS so if anyone has any knowledge on tricking smooth playback at a slower FPS than normal, I'd like to hear it. I can do a pretty good smooth playback on it already, but just looking for some tricks from someone thats been there.

-S

PS. My AVISynth script for the current vid I am working on looks like this:

LoadPlugin("D:\Temp\dgmpgdec148\DGDecode.dll")
LoadPlugin("D:\Temp\dgmpgdec148\Decomb.dll")
mpeg2source("VTS.d2v")
ConvertToYUY2()
Telecide(guide=1,post=2)
Decimate(cycle=5,mode=1)
Lanczos4Resize(320,240)
ChangeFPS(15)
AudioDub(WAVSource("vts.wav"))

The Decimate is currently set for frame blending, but I am not sure I want that anymore.