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View Full Version : Yet Another DV to AVI Question?


section31
13th July 2004, 07:48
Ok, I hate to say this...but after reading through all the stickys and browsing these forums, I still don't know exactly how to do this. I mean just browsing this forum, it seems i'm not the only who just still isn't getting it. Nearly every thread is asking for help with this.

I exported a dv file from premiere that I capped from my dv camcorder.
1. NTSC 720x480 pixels (.9*** aspect ratio) interlaced lowerfield first

I need to get this video deinterlaced and at the correct pixel aspect ratio to view on my monitor.

Ok, first thing is first. I opened this video in virtualdub as stated in this thread (http://forum.doom9.org/showthread.php?threadid=32197) , and it said "could not locate decompresser, blah blah blah". So I then ended up downloading the panasonic dv codec as reviewed in this thread. (http://forum.doom9.org/showthread.php?threadid=33526)
I was then able to open the file, then I got stumped trying to get this at the correct pixel aspect ratio. Reading this thread (http://forum.doom9.org/showthread.php?threadid=44977) made it even worse...several people arguing on whats right and whats wrong. I have no idea who to believe. I rest my case. Can anyone tell me exactly what I need to do to get this at 640x480 or whatever resolution its supposed to be at square pixels? After I find this out, I just load the smart deinterlace filter and leave the default options and start encoding....right?

Thanks for any help,
Dave

Kika
13th July 2004, 09:10
Can anyone tell me exactly what I need to do to get this at 640x480 or whatever resolution its supposed to be at square pixels?

Crop it to 704x480, resize it to 640x480.

section31
13th July 2004, 09:41
Originally posted by Kika
Crop it to 704x480, resize it to 640x480.

Take off 8 from each side and reasize using which method? Percise bilinear seemed to be the best...am i correct? Also, what about deinterlacing..did I have that part right. Are the default settings fine.

Anyone want to second this...

mustardman
13th July 2004, 12:51
To resize, you will get a lot of different answers. Bicubic is a good one.

Since only the H is resized, and V is not, there should be no problems with the interlacing.

If you intend to go to TV (ie: DV or DVD) then do not de-interlace.

If you want DivX or similar, you can de-interlace as it will look better on the computer monitor (but worse on a TV !).

MM