Cinema craft horrors!!

[cmsbfent]

gday folks, i need help from a cinema craft expert!!

I'm havin trouble gettin CCE to encode certain avi files and i cant work out why. To explain, if i try to encode an avi that is 25 fps and has a resolution of 640 x 272, creating a script with fitCD which i do not change in any way, CCE takes the script and produces an mpeg that is of amazing quality at v.fast speeds, happy days!!

However, if i take an avi file that is, for example, 576 x 304 and runs at 25 fps, and create script with fitCD in exactly the same way, without changin anything that fitCD puts into the script, CCE produces an mpeg that seems to be wrapped around itself and is severly corrupt in that it almost looks like there is two videos running at the same time with one being half a second behind the other making i look like its jumping around??

I've been trying to crack this problem 4 a while now, but am stuck completely. The only thing i know is that it is linked to the resolution of the avi file some how, and if it is ((a number under 600) x (a number over 299)) it comes out as explained. So, any experts care to elaborate for me.

Heres a script that fitCD made that works:

# -= AviSynth v2.0.8.0 script by FitCD v1.2.4 =-
AVISource("C:\final.avi")
BicubicResize(688,320,0,0.6,0,0,640,272)
AddBorders(16,128,16,128 )
#Trim(0,148815).FadeOut(150)

Heres a script that fitCD made that doesn't work:

# -= AviSynth v2.0.8.0 script by FitCD v1.2.4 =-
AVISource("C:\final.avi")
BicubicResize(688,400,0,0.6,2,0,572,304)
AddBorders(16,88,16,88 )
#Trim(0,218585).FadeOut(150)


PLEASE PLEASE HELP ME, ITS MAKING ME GO INSANE!!!

p.s, after just logging on, apparently the last time i logged on and posted was 11th feb 2004, and now its the 11th feb 2005, SPOOKY!!

[guns1inger]

The suspects are either the movie files themselves, or the avisynth script or filters. I will assume the scripts are OK, given that the only difference between the two is from the difference in the clips, and one works OK. CCE does not know about the resolution of the original, since it only sees the clips once they have been resized through avisynth. This is why I don't believe resolution is the culprit. Perhaps someone here of knows avisynth scripting will contradict me on some of this though.

I would run the movies through something like DivFix or Divx Repair to look for problems.

Finally, you could try frameserving from virtualdub instead, just to see if this changes things.

[cmsbfent]

cheers for that guns1inger,

just tried divfix and it didnt change anything. Oh well. Will have to look into frameservin to see if it helps.

Any more suggestions anyone??

[cmsbfent]

gday again,

just had a quick play with the frameservin method and it is producing nice results but they have a 'choppy' feel to them i.e. the video isn't completely smooth. Anyone ever come across this and know a way to stop it??

Cheers, Ben

[guns1inger]

Check the file info in VirtualDub - look for the framerate (fps). If it is 23.976 or similar, or 29.976 or similar, and you are encoding at 25 fps, then wou are effectively attempting a format conversion (NTSC -> PAL). I don't know where you are from, but as you appear to be converting to 25 fps, it is probably somewhere in PAL land. Most players will quite happily handle NTSC. When I do these types of conversions, I generally leave the framerate at 23.976, apply 2:3 (3:2) pulldown during authoring, and leave it be. Once you start screwing with format conversion, you have to look at adjusting audio speed to keep sync. It's isn't worth it for my money.