Need tips for DVD->SVCD (Pure NTSC Interlaced DVD)

[ookzDVD]

Dear Forum,

It is my first try to use d2s for dvd->svcd.
I'm new on the svcd world since for the last 2 years,
I'm only playing with xvid and vcd. :)

So. I really need tips for do the right way :)

My source is DVD NTSC Pure Interlace.
I'm using CCE SP 2.67.00.23.

Should I perform the de-interlace or just leave it interlace ?
how about the field order setting on CCE if the source is TTF.

How about other advanced setting on d2s ?

Thank you.

[DDogg]

First question is what is the display target? PC or TV? I think most of the following questions need to wait until we know that.

[ookzDVD]

First question is what is the display target? PC or TV? I think most of the following questions need to wait until we know that.


For TV (using stand alone DVD player)

[DDogg]

For TV, my personal belief is you should keep interlaced as you said this was pure NTSC interlaced source.

Make sure you have an appropriate interlaced template for CCE. See the sticky above on that and TFF/BFF settings. Make sure to select it in the advanced drop down in the Encoder - CCE section.

In the conversion tab select "keep interlaced"

In the dvd2avi tab select "Off".

Normal procedure after that.


Note:
If you decide you wish to filter, I would suggest you select "edit as part of video encoding" in the frameserver tab. When the script pops up for editing change it to read:

The normal stuff

jdl_UnfoldFieldsVertical(flip=true) (http://www.avisynth.org/stickboy/) #Just put the avsi in your plugins dir
Filters
Resizing (if vertical resizing is used like on vcd)
jdl_FoldFieldsVertical(flip=true)

Don't press OK until you press save and go to your working directory to make sure AVS plays correctly. I hope I am not just confusing you :)

[ookzDVD]

@DDogg,

I just follow your first clue, download your CCE template,
and try to encode short clip. the result is "prefect" as
I can see on TV. :)

Thank you for the help I really apreciate that. :)

PS. Other question : For NTSV SVCD how long (in minutes) is the "save" duration for 80 minutes CDR to get the good result ?

[Nick]

Sadly there is no "safe" length in terms of minutes and seconds.
This brings into play the differing compressibility of different sources.

For example, home movie footage is notoriously difficult to compress, since the hand-held camera is never quite steady and so the background moves a lot. Such a lot of movement is very greedy on bitrate and so to get a nice result I don't try to put more than 30mins per CD.

Some fairly simple, low action movie sources, however, I have successfully squeezed up to 75 minutes of acceptable (to me) quality movie on 1 CDR!

Against this background you will see it is difficult to suggest a "safe" length for one disc. Perhaps it is time to introduce the concept of quality based encoding. One pass VBR mode in CCE uses a cencept known as the Q factor. The lower the Q factor, the higher the quality. It basically encodes the movie at a given quality, making sure you are always happy with the result. The downside is, of course that the size of the output file is totally unpredictable.

That is where the D2SRoBa plugin comes in. Launch it and set the number of CD's to Auto and the Auto Q to 40 (this is generally considered a good cut-off point). It creates a representative sample of the movie by grabbing a handful of frames every few seconds. It then uses this to calculate the minimum number of CD's to get the Q less than the chosen Auto Q value, then the exact Q needed to fill those CD's to the edge. It then encodes 1-pass VBR at the calculated Q, with an optional additional sizing pass if the final encode is over or undersized. I hope this makes sense!

Basically what I'm trying to say is that D2SRoBa assesses the source material and chooses the correct number of CD's for you to get output quality above your chosen minimum. It then sets about filling the calculated number of CD's.

Give it a try. I'm sure you will like the results. If not, lower the Auto Q in D2SRoBa to increase the minimum acceptable quality.

[ookzDVD]

@Nick,

Thank you for your nice explaination.
I really apreciate that.

I just try the d2sroba for 85 minutes movie. with the default
setting the result is 2 CD and the result is GOOD! :)

I'll try to play with the setting I hope I'll get the suitable
one for me.

Thank you.