01-31-2004, 02:46 PM
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Hi everyone.
Im trying to convert an avi file to kdvd, but keep getting strange results.
The movie has an aspect ratio of 640 x 480 (1.333 : 1) and a framerate of 23.976 FPS. The movie is also in fullscreen with no black borders.
When I converted it, using CCE, to 720 x 480 with 4:3 settings, DVD-Lab says the resolution was ok but when I play the m2v file in media player classic it gets 720x540. It also had some thin black borders on the left and right of the movie.
So I tried encoding the movie into 704 x 480 with 4:3 settings and the endresult becoms 704 x 528 but this time with no black borders at all.
DVD-Lab still says the resolution is ok.. 704x480.
I burned two DVD-RW's with one of each resolution but when I watch them on my TV the picture was to big, cropping out stuff on left and right.
I though this had something to do with in fact they were in 720x540 and 704 x 528 so I tried using the SAR 1:1
This time they became ín the resolution I wanted in media player but DVD-Lab complained they were odd and may not play on all dvdplayers. I bured a test dvd and still.. the picture gets to big on left and right.
What could be wrong with my encodings ?
Im using this script.
##########
# script #
##########
m_width=704 #or 720
m_height=480
myoverscan=0
movie="flcl_vol1_video.avi"
AVISource(movie,false)
#Post-Process
Blockbuster(method="noise",detail_min=1,detail_max =8,variance=0.3,seed=5823)
ATC(1,2,4,0.5,false)
TemporalSoften(2,7,7,3,2)
Blockbuster(method="noise",detail_min=1,detail_max =10,variance=0.5,seed=5823)
#Resize, overscan and borders
gripCrop(m_width, m_height, overscan=myoverscan,source_anamorphic=false,dest_a namorphic=false)
GripSize(resizer="lanczosresize")
GripBorders()
converttoyuy2()
sampler(length=15)
Thanks for a good forum / CentralUnit
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Someday, 12:01 PM
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01-31-2004, 03:35 PM
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1/ you should never increase a resolution
2/ you shouldn't use divx for making DVD
3/ you should never use wmp to verify a resolution but tools like avicodec or gspot.
4/ you MUST post all avi related topic to the avi->kvcd forum.
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01-31-2004, 04:00 PM
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Thanks Dialhot for directing me to the proper place to post.
Im converting an anime short move and anime doesnt get that bad when increasing the picture size. With a CQ of 5 the qualty gets amazing. I wanted my DVD to be as compatible as possible even though its a KDVD.
I did use gspot to check my avi resolution and framerate, but because it cant handle mpeg I used Media Player Classic where you can get properties and info from all your filters.
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01-31-2004, 08:44 PM
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Quote:
Originally Posted by CentralUnit
I wanted my DVD to be as compatible as possible even though its a KDVD.
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KDVD'S are 100% Dvd compliant (If u makem right)
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01-31-2004, 10:01 PM
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Quote:
Originally Posted by CentralUnit
I did use gspot to check my avi resolution and framerate, but because it cant handle mpeg I used Media Player Classic where you can get properties and info from all your filters.
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And as you can see, all info given tehre seem wrong.
Despite its name "avicodec" handle every king of video and audio file, mpeg included. Try it.
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02-01-2004, 07:16 AM
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The Untouchable:
Yes.. but isnt 720x480 the most compatible size ? thats one of the reaseons I chose to increase the picture size.
Dialhot:
Great tool.. thanks.
Anyway, I set my overscan to 2 and the whole picture was now showned om my tv with a very thin black border around it. All codec info programs now showed the correct size.
However.. when you watch commercial 4:3 dvdmovies the whole picture usually fill the whole resolution with no black borders at all. Why do I need to overscan in this case ?
Is it because the pixel size is different ?
If so is there a way to make my encode fill the whole 720x480 with no overscan at all that will show on a tv as if it were an "original" dvdmovie ?
If I understand this correct.. overscan may differ from tv to tv, and thats unacceptible if I want to make a dvd that works on every tvset.
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02-01-2004, 07:40 AM
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Quote:
Originally Posted by CentralUnit
Is it because the pixel size is different ?
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Yes it is. And I think you have this problem because you use a SAR of 1:1 (pixel on a DVD aren't square and the guy that did the DVD didn't take take in account so the avi as a false A/R that you must fix to have a correct KDVD).
Quote:
If I understand this correct.. overscan may differ from tv to tv, and thats unacceptible if I want to make a dvd that works on every tvset.
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That's true but in fact it's just a way to say "overascan=1 is okay for all, 2 is okay almost all the time but on some TV you can have a thin border (like you have), 3 is rarely okay but can be onb some tv set".
I you want to be the most compliant with all tv sets, use 1.
Note: Stop using 720 ! use 704 !
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02-02-2004, 02:22 PM
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Quote:
.... And I think you have this problem because you use a SAR of 1:1..
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I did a test encode in 1:1 but DVDLab changes the flags when choosing 4:3 or 16:9 disc properties and there is no other alternatives
The mpeg became as if I would use DVDPatcher and change the flags to 4:3 even though I encoded in 1:1.
Ive also made a test dvd with overscan = 2.. it looked ok on my tv using the standalone player. With my PC TVOut the borders were bigger but could be compensated with tvout overscanning. Playing the DVD in PowerDVD on my computerscreen looked like a nightmare.
So I remade the encode using the 1:333 pixelratio. I jumped over to PAL and tried 704 / 1.333 = 528. 704x528 in picture size.. the rest of the hieght were black borders. Got an average result.. not good enough, still too much width cropped on the tv.
Perhaps there is more to learn about pixelratio.
Display Aspect Ratio (MPEG) ?
Video Aspect Ratio (Video) ?
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02-02-2004, 03:35 PM
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Quote:
Originally Posted by CentralUnit
I did a test encode in 1:1 but DVDLab changes the flags when choosing 4:3 or 16:9 disc properties and there is no other alternatives
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Read what I said : pixel on a DVD aren't square.
There is no 1:1 ratio on other thing that a PC monitor.
Quote:
The mpeg became as if I would use DVDPatcher and change the flags to 4:3 even though I encoded in 1:1.
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You CAN'T encode at 1:1 if you are doing a VCD !
1:1 is for AVI ONLY ! And I was mentioning source A/R, not target !
Quote:
Perhaps there is more to learn about pixelratio.
Display Aspect Ratio (MPEG) ?
Video Aspect Ratio (Video) ?
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A lot
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02-02-2004, 03:52 PM
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Sorry for expressing me unclearly.
Let me put it in this way.. "I did 1:1 as a test encode but DVDLab changes the flags when choosing 4:3 or 16:9 disc properties and there is no other alternatives"
So there is no point in setting your flags to 1:1 cause DVDLab will change them back to whatever you choose as disc layout. Well you could choose non-compilant but thats not what I want.
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02-02-2004, 03:55 PM
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Quote:
Originally Posted by CentralUnit
"I did 1:1 as a test encode but DVDLab changes the flags when choosing 4:3 or 16:9 disc properties and there is no other alternatives"
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So I repeat: THAT IS NORMAL !
And I change a little my next sentence : you can't put a 1:1 encoded mpeg (that is destined to be displayed on a PC monitor only) on a DVD because 1:1 is for PC monitor only (I know, I said that twice).
Just remove my "is for avi only" sentence if that is the point that gave you doubt on my previous post.
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