View Full Version : DVD compliant
flaamer
28th January 2002, 03:55
Using DVD2SVCD v106b1, I'd like to have achieve a resultant mpeg suitable for dvd burning. Is this possible by editing the Avisynth script file? If so, do I choose "Edit when dvd2avi processing is done" or "Edit as part of CCE encoding?" What Avisynth Bicubic b and c values do I choose? I'd like to get either a 352x480 or 720x480 result. Am I totally off-base? If so, please point me in the right direction. Thanks
D0Hbert
28th January 2002, 14:42
Actually we have the same questions. I'm doing half-d1 resolution m2v files (352x480) so I can feed the video file to scenarist and author my minidvds. What I'm doing is making a project file off DVD2AVI, then writing a simple avs script like this:
LoadPlugin("c:\MPEG2DEC.DLL")
mpeg2source("c:\Video.d2v")
BiCubicResize(352,480,0.0,0.50)
I get the frameserved avi off the avi script using Vfapi 1.03b. Then I use cce on that avi file.
So I need your help on how to do this resize to hal-d1 resolution right, lets say witht the following video sizes (4:3.16:9 - 1.85 or 2.35 or anamorphic). Will the aforementioned script apply ok to all these video sizes? You help on this matter is greatly appreciated. Thanks.
jdobbs
29th January 2002, 01:15
Check the aspect ratio of the source (in DVD2AVI). As long as it is the same as what you set in your destination (the DAR you select in CCE) then your script is correct.
The only time you have to adjust is in those cases where you attempt to change 16:9 to 4:3 or vice-versa. In those cases you would have to adjust the vertical size and either add or remove material to get back to 480. Just for informational purposes, here's how you do that:
To go from 16:9 to 4:3 (not recommended, it loses resolution - but it's occasionally needed):
16:9 = 1.77778:1
4:3 = 1.33333:1
The difference in ratio is 1.33333/1.77778 = .75
480 x .75 = 360
So you'd use the following in AVISYNTH
BicubicResize(352,360)
AddBorders(0,60,0,60)
To go from 4:3 letterboxed to 16:9 (it doesn't really improve the picture, but makes it easier to fill your widescreen TV -- you'll lose picture area if the source isn't letterboxed):
4:3 = 1.33333:1
16:9 = 1.77778:1
The difference in ratio is 1.77778/1.33333 = 1.3333
480 x 1.33333 = 640
So you'd use the following in AVISYNTH
BicubicResize(352,640)
Crop(0,80,352,480)
Hope that helps.
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