Divx >>>> SVCD with TMPGEnc: interlace or no-interlace?

[giuffro]

The guide on this site says "interlace if the divx has been captured but if i downloaded it how can i find out whether the divx has to be interlaced?

Does it have something to do with the resolution, the format (pal,ntsc,ntscfilm),the source it has been ripped from or a mix of both? Does anybody know any rule of thumb or an easy way to find that out?

[uknow]

Good question.
I'm also wondering whether interlaced or not might help my problem (posted here)

[kinneera]

Far be it from me to pass judgement, but if any Divx is interlaced, then the author is a moron. Computer screens are not interlaced, and since Divx is computer playback only, there is no reason you would ever leave the video interlaced. In any case, if it is interlaced, the resultant artifacts usually should be pretty obvious. Look for tightly grouped horizontal lines, especially around edges that are experiencing motion. Most obvious is when the two fields refer to two different frames.

<font size=-1>[ This Message was edited by: kinneera on 2002-01-05 22:28:36 ]</font>

[giuffro]

Thanks! so what you are saying is basically that since all divx should be non interlaced when i convert to SVCD with TMPGenc i should put no-interlace? Is that right? no matter which format the divx is?

Question#2: Does it make sense make a 3 cds SVCD out of 600-700MB downloaded Divxs with resolutions among the following: 640x352 656x288 720x368 512x288 and bitrate between 90 and 110 KB/s? Or the quality wouldn't be superior than making 2cds VCD?

[kinneera]

Ideally yes, you will always want to specify non-interlaced in TMPGEnc if the source is Divx. Hopefully your movies will have been authored intelligently.

You will almost certainly see no gain from making SVCDs from your Divx movies. The Divx format is already so highly compressed and loaded with artifacts (even if you can't see them, they're there digitally) that making SVCDs out of them is pointless, and may actually make them look substantially worse. Stick with VCDs.

<font size=-1>[ This Message was edited by: kinneera on 2002-01-06 02:54:50 ]</font>

[giuffro]

thanks again!! I'll follow your advices!!