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View Full Version : Convert 4:3 dv avi to 16:9


s_kound
11th May 2003, 15:21
hi to all...

I have a sony FQ80 widescreen tv and a DCR-pc101e (pal) dv camcorder. I now shooting videos at 16:9 mode with my camcorder and then edit and encode them (mpeg2 for dvd-r) as 16:9 with procoder and everything is fine...

But i have some older dv tapes shooted at 4:3 and i want to edit them and encode them as 16:9 so when i watch them in my tv they will full the screen and don't have bars at left and right.

How can i convert dv avi from 4:3 to 16:9 without mess up the picture (wide heads etc :) ) ????


Thanx in advance and please excuse my poor english

auenf
12th May 2003, 12:08
add black bars to the sides to make the video 1024x576, then horizontally compress it to 720x576

Enf...

ultimatebilly
12th May 2003, 12:46
add black bars to the sides to make the video 1024x576, then horizontally compress it to 720x576
I dont understand what you would achieve with that...
The picture would be unsqueezed to a 16/9 AR on playback, right?
Well, then you would just have the same effect as you would have had anyway, the only difference would be that you have created the black bars, and not the TV...
Or am I wrong here?

The only way I can think of is to crop the video vertically to 405 (so you would have 720*405), and resize it to 720*576...
On playback it would be stretched to 16/9 (1024*576 or 720*405 - IIRC, the anamorphic distortion is achieved by combining lines, so it would be rather 720*405, but it doesn't matter in the end), and the video would be displayed without any black bars...

auenf
12th May 2003, 12:52
to maintain the 4:3 image on a 16:9 tv (with a 16:9 only disc, which is a limitation of most authoring programs, cause they only suppor 1 VTS) you add black bars.

i even have a commercially made dvd that does the same.

http://michaeldvd.com.au/Search/ReviewSearch.asp?title=live+at+the+chapel

if the authoring program used supports multiple VTS's, then you can keep the 4:3 vids at 4:3, otherwise add black bars.

you suggest cropping the video to 720x405 (which is 16:9), but that may cut out important things.

Enf...

ultimatebilly
12th May 2003, 12:57
Sure, but according to this:
But i have some older dv tapes shooted at 4:3 and i want to edit them and encode them as 16:9 so when i watch them in my tv they will full the screen and don't have bars at left and right.
s_kounds TV already does the letterboxing to maintain the 4:3 AR...
The way I understand his post, he wants to know how he can get rid of the black bars, without stretching the picture, and the only way to do that is to crop...

you suggest cropping the video to 720x405 (which is 16:9), but that may cut out important things.
It will definitively do that, but I think it is the only way to get rid of the letterboxing without stretching the picture...

PS.: I would surely prefer the letterboxing over cropping myself...

bairradino
14th May 2003, 13:14
s_kound,

I supose that you want to preserve the pixels aspect ratio of your movies. In this case there's no other alternative: You have to crop your movies in high.
If you are a PAL user your movies will be 720x576. So you have to crop 72 pixel up and 72 pixel down.
Use Adobe Premiere to do it.

s_kound
14th May 2003, 15:08
ok.... thank you all for your replies & help


I'll try adobe premiere to see if ti works for me

Thanx