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View Full Version : I don't want DVD2AVi to resize !!!


keelize
17th March 2002, 12:05
Hello,
I use the DVD2AVI+Avisynth+AVS Tools+Virtualdub method to encode my films and DVD2AVI always resize my film even if I check the right settings in "Video/CLip & Resize".
So I have to resize my film with AVS Tools or Virtualdub. There is maybe a loss of quality due to this double resizing. And another problem is for interlaced movies : I use the "smart deinterlace" virtualdub filter, and if I want it to work, I have to open the movie with the original resolution (in order to have the right even/odd fields). So there are toubles with this double-resizing.
Is there a way to keep the original film resolution wirh DVD2AVI ?

Thanks

Kedirekin
17th March 2002, 16:16
I'm not sure which version of DVD2AVI you're using. In all the versions I've used, resizing is off by default.

The default resolution of all DVDs is 720x480 (NTSC) or 720x576 (PAL). What resolution are you seeing?

keelize
17th March 2002, 16:42
Hi
I'm using DVD2AVI 1.76 and I see a resolution of 720*576 for all my Pal DVDs so it is normal :-)
I though there was a problem because the movies in 720*576 looked anamorphic resized. So all films are stored in 720*576 on DVDs and the DVD player has te resize the 16/9 films before displaying them ?
And for my deinterlacing problem, all Pal DVDs have 288 even lines and 288 odd lines ? So I have to use the smart deinterlace filter on the 720*576 film and after it, I resize the film ?

Kedirekin
18th March 2002, 01:45
So all films are stored in 720*576 on DVDs and the DVD player has te resize the 16/9 films before displaying them ?
In effect, yes.

And for my deinterlacing problem, all Pal DVDs have 288 even lines and 288 odd lines ? So I have to use the smart deinterlace filter on the 720*576 film and after it, I resize the film ?
If we were talking of a full screen DVD, I'd agree. But since you mentioned 16:9 above, we're into an area that pushes the limits of my language skills.

Remember that the player resizes 16:9 to appear letterbox on your TV set. If the DVD had 288 even and 288 odd lines, things would probably be somewhat messed up after this resizing (though what I think a player does is discard lines, so maybe it side-steps around the field line problem).

Were I you, I'd really look to see if there is any combing in the dvd2avi footage. It'd be a lot easier if things were progressive before you started resizing.

If there is combing, there may be a number of things you can do. Deinterlacing is on possibility. For PAL footage, I'd also look into using Telecide (especially if the footage was orignally from film), which may be able to reconstruct progressive frames with no loss in detail or the ghosting you might get from deinterlacing.

And beyond that, I need to hand you back to the group. I have little experience with deinterlacing, and zero experience with PAL.

keelize
18th March 2002, 16:29
ok I think I undestand a bit better
once again thanks