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apsect ratio problem
Posted: Sat Jun 24, 2006 10:05 pm
by levorta
I'm having trouble with the asepct ratio I'm getting when I convert films to dvd. I select 16x9 source (because it's the closest thing) and I select 16X9 as the destination. The end result is a horizontally squashed and vertically streched image. I know this has been asked in the forums before, but I couldn't find a solution. Avi2dvd is a great program, it's the only program that seems to be able to properly covvert .mkv files for me. I've tried encoding with QuEnc and CCE and get the same results both times. Here is a comparison shot of the results. Does anyone have a solution?
Thanks for any help!
Posted: Fri Jun 30, 2006 4:25 am
by Sync
I had some problems with this at first, but figured out a few things that weren't very obvious about Avi2DVD...
Avi2DVD is actually pretty smart. Smarter than I thought... But if you try to be "smart" too, you may give it something that will confuse it...
Avi2DVD WILL try to convert the aspect ratio FOR YOU depending on what options you select. Make sure you do NOT resize your material in advance in an attempt to match what you *think* your output needs-- for example, if you are going to SVCD-- that's 480x480 in NTSC-- DON'T squeeze it first thinking you have to give Avi2DVD the right sized material for the output-- as Avi2DVD will resize it AGAIN thinking you are giving it correct aspect ratio media and what you get will look squeezed as that's what you fed to Avi2DVD... If you check 4:3 or 16:9 I believe it will assume whatever you supply is ALREADY in a proper aspect ratio itself, and then munge it to suit the output format-- for example, if you feed it 16:9 video but tell it you want 4:3 output (probably what you want if your source is 16:9 BTW), it will add black bars at the top and bottom FOR YOU, and potentially reduce the size of your source material to fit the width of the 4:3 output...
Take particular note though, of the Pal2NTSC and NTSC2Pal checkboxes-- if it's not grayed out, check whichever one you want your OUTPUT to be-- if it's for NTSC, check Pal2NTSC unless its grayed out, and if it's PAL you want, check NTSC2Pal. REGARDLESS of what your input is-- Avi2DVD is smart enough to figure out what you got and rescale and add black bars to it to make it fit your output at the proper aspect...
Posted: Fri Jun 30, 2006 12:43 pm
by trustfm
sync is 100% right
If you check 4:3 or 16:9 I believe it will assume whatever you supply is ALREADY in a proper aspect ratio itself...
YHou must change this option only if you original AR IS WRONG !!! (YOU NEED TO FIX THE AR because you have an film with wrong ar !!!)
Posted: Fri Jun 30, 2006 1:36 pm
by trustfm
an older mine post but usefull :
-Why you put two ar since one is used in all the programs .
Short answer : with the two AR you can also change an 4/3 in 16/9 or an 16/9 in 4/3 . A lot of progarms doing this under payment !!!
Not only that but if an video had WRONG AR you can FIX it and convert at the same time !
-WOW I WANT TO KNOW WHAT TO DO !!!
Wait the guide . the guide will have 12 cases of AR with screenshots and you are going to get all the solutions you want !
-Tell me what options shall i use NOW for the 2 AR !
Well :
if you have an AVI/DVD 16/9 -> VCD AR-INPUT 16/9 AR-OUTPUT 4/3
if you have an AVI/DVD 16/9 -> DVD AR-INPUT 16/9 AR-OUTPUT 16/9
if you have an AVI/DVD 16/9 THAT YOU WANT IT TO BE CONVERTED AT 4/3 -> DVD AR-INPUT 4/3 AR-OUTPUT 4/3
if you have an AVI/DVD 4/3 -> VCD AR-INPUT 4/3 AR-OUTPUT 4/3
if you have an AVI/DVD 4/3 -> DVD AR-INPUT 4/3 AR-OUTPUT 4/3
if you have an AVI/DVD 4/3 THAT YOU WANT IT TO BE CONVERTED AT 16/9 -> DVD AR-INPUT 16/9 AR-OUTPUT 16/9
Using AR-INPUT 16/9 AR-OUTPUT 4/3 etc you get scalable transformations of the initial avi/dvd . So if you have an avi with WRONG AR then you should do something like this ... AR-INPUT 16/9 AR-OUTPUT 4/3 .
These options will be explained at the miniguide ...
Avi2dvd will have as default the optimal solution (Avi2dvd always thinks that the initial avi/dvd has CORRECT AR).
STAY TUNED !!!