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Avisynth: Converting Letterbox 4:3 to Anamorphic 16:9
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Arian
Member


Joined: 26 Aug 2002
Location: Athens, Greece
Post Posted: Aug 30, 2002 05:56 Posts Comp View users profile Send private message Reply with quote
Avysynth is very good for resizing. I wonder if there is available anywhere any script that converting non-anamorphic letterbox 4:3 aspect ratio to anamorphic 16:9. I have made some tests but there are not perfect. Can you suggest a good written/tested script?

Truman
Moderator


Joined: 19 Feb 2001
Location: Berlin, Germany
Post Posted: Aug 30, 2002 13:46 Posts Comp View users profile Send private message Reply with quote
It depends on your source. Calculate how to resize with FitCD.
Example frame size is 720*576, but borders around left 10, top 76, right 10, bottom 76.

BilinearResize(720,576,10,78,700,420)#to keep the aspect ratio you have to crop to 420 instead of 424

Add borders to the overscan area:

BilinearResize(672,542,10,76,700,424)
AddBorders(24,16,24,18)

Load the *.avs into the encoder and select output DAR 16:9.

Arian
Member


Joined: 26 Aug 2002
Location: Athens, Greece
Post Posted: Aug 30, 2002 17:05 Posts Comp View users profile Send private message Reply with quote
ohmy.gif Whow! ohmy.gif

FitCD is great!
It requires hours of reading and testings in order to get the best possible result... but this is the right point to start with!

Thank you...
Thank you...
Thank you... Truman biggrin.gif

pops56now
Member


Joined: 01 Sep 2002
Post Posted: Sep 01, 2002 12:55 Posts Comp View users profile Send private message Reply with quote
Using FitCD
I have a movie on my hard drive I would like to resize.
I set fitcd up like I think it should be, and set the
FileNameAVI=C:\Utilities\TMPGEnc\FitCD_v104\TripleX1.avi
FileNameD2V=C:\Utilities\TMPGEnc\FitCD_v104\TripleX1.d2v
FileNameMpeg2Dec=C:\WINDOWS\SYSTEM\mpeg2dec.dll
then I save Scrip.
Then I get a file called film.avs (406 Bytes) .
Then what do you do?
Do you open the file .AVS using something I'm not aware of?
Any help would be appreciated.
Thanks
cry.gif

pops56now
Member


Joined: 01 Sep 2002
Post Posted: Sep 01, 2002 21:08 Posts Comp View users profile Send private message Reply with quote
What encoder do you use with *.avs file?

pops56now
Member


Joined: 01 Sep 2002
Post Posted: Sep 01, 2002 21:42 Posts Comp View users profile Send private message Reply with quote
Ok I have it narrowed down to the ReStream v0.8.3
But I can't get it to down load right, it comes in as a document and nonreadable form..

Arian
Member


Joined: 26 Aug 2002
Location: Athens, Greece
Post Posted: Sep 02, 2002 02:02 Posts Comp View users profile Send private message Reply with quote
I have made my firs test using FitCD (for once again... this is a great tool!). At the end of the script I added the bob command (default settings) because after the resize, interlace lines appears. Re-encoding was done with CCE. The result was quite good! Smooth move and good sharpness. Nevertheless, I like to do some further investigation in order to get a little bit sharper image quality. I don’t know if this is possible. Don’t forget... Converting letterbox 4:3 to anamorphic 16:9 we are resizing the picture to higher resolution.

I’ll keep you inform...

Last edited by Arian on Sep 02, 2002 02:47, edited 1 time in total
Arian
Member


Joined: 26 Aug 2002
Location: Athens, Greece
Post Posted: Sep 02, 2002 02:43 Posts Comp View users profile Send private message Reply with quote
pops56now wrote:
Do you open the file .AVS using something I'm not aware of?

This is not so easy as you describe (open film.avs with something). You have to make your self-femiliar with a lot of stuff like Avitynth, frameserving and encoding. In order to do that, you must spend a lot of time reading. I hope you have that time!

The links I give in this post may not be the bests. But it was really helpful for me.

Arian
Member


Joined: 26 Aug 2002
Location: Athens, Greece
Post Posted: Sep 02, 2002 05:24 Posts Comp View users profile Send private message Reply with quote
After a lot of search and reading, I discover that de-interlacing is more a matter of perspective than a matter of functions and numbers. For each case there is a number of deferent solutions and off curse a lot of opinions! In order to create my opinion, I need to spend more than a month testing and trying. After this month, I’m sure; I will have a master on de-interlacing and a great opinion! But, I will also have a divorce on my hands, because my wife things that spending time learning de-interlacing is less important than spending time with my two children! And off curse she is right!

Did anyone know any good updated guide about de-interlacing using Avisynth in order to create good DVDRs from DVD, S-Video, DV or any other high-resolution source? If such a guide did not exist, any suggestion will be appreciable!

Thank you

pops56now
Member


Joined: 01 Sep 2002
Post Posted: Sep 02, 2002 10:28 Posts Comp View users profile Send private message Reply with quote
Thank you very much for the reply.
I see that a lot of reading is necessary.
Thank God I have the time lol.
Also thanks for the links.
Later going to start reading.

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