Resolutions and SVCD

[Chainmax]

I wanted to ask you guys if the following are good ways to resize a stream for SVCD convertion:

If the stream is 4:3, just resize to 480x480 or 480x576 and encode as 4:3

If the stream has an AR of p, then resize to 480x(480/p) or 480x(576/p), add borders until the picture is 480x480 or 480x576 and encode as 4:3. For instance a base script for a 2.35 movie would be Lanczos4Resize(480x204).AddBorders(0,138,0,138) or Lanczos4Resize(480x204).AddBorders(0,186,0,186).

Am I right or is this nonsense?

[onesoul]

Hi, I give a link for two tools (scroll down on both pages) for calculation on resizing.

http://biphome.spray.se/gunnart/video/ : video size calculator, my favorite.

http://jsoto.posunplugged.com/others.htm : avires, simple.

Cheers

[Chainmax]

I'd rather use my method if it's correct.

[glyons]

AFAIK, it works. However, you should check if your player supports anamorphic SVCDs (mine does) so you can encode 16:9 videos without adding black borders.

[onesoul]

Originally posted by Chainmax
I'd rather use my method if it's correct. Well, if you want to be accurate, you need to take in account the source pixel ratio.

That is why the video calculator is handy because it helps you to get the right values to use on avisynth.
Version 1.02: The pixel aspect ratios used in the the calculations were changed to those described here (http://www.uwasa.fi/~f76998/video/conversion/) . The changes are very subtle, though.

[SiXXGuNNZ]

FitCD or Fit2Disc are all you need

[onesoul]

Originally posted by SiXXGuNNZ
FitCD or Fit2Disc are all you need Well, it's good to have many options.