Avisynth: How to Convert a Standard NTS 4:3 Aspect Ratio to a 16:9 ?

jorel · #1 04-23-2004, 12:28 PM

for standard NTSC 4:3 aspect ratio to a 16:9 aspect ratio,
what will be the parameters for addborders and resize ?

have advantages, errors and

what i get in tv ?
(egg-head,anamorphic..?)

thanks in advance!

i posted in d9 but no answers!
http://forum.doom9.org/showthread.php?s=&threadid=74554

Peter1234 · #2 04-23-2004, 03:48 PM

jorel,
You do not need anything in script. Use TMPGEnc set to Center (keep aspect ratio) for video arrange method and 16:9 Display for Aspect ratio. Is very slow, there might be a better way. You should not need to do this, TV should do it for you.

jorel · #3 04-23-2004, 04:10 PM

Quote:

Originally Posted by Peter1234

jorel,
You do not need anything in script. Use TMPGEnc set to Center (keep aspect ratio) for video arrange method and 16:9 Display for Aspect ratio. Is very slow, there might be a better way. You should not need to do this, TV should do it for you.

oh thanks for that hint (that i don't knew) but it's not to use in tmpgenc,
it's for avisynth script to encode in QuEnc!
i need to know how i do the script using lanczos4resize to test!

Dialhot · #4 04-23-2004, 05:53 PM

Quote:

Originally Posted by Peter1234

Use TMPGEnc set to Center (keep aspect ratio) for video arrange method and 16:9 Display for Aspect ratio. Is very slow, there might be a better way. You should not need to do this, TV should do it for you.

For sure it's slow ! And for sure there is a better way ! We use avisynth for that purpose

I didn't understand what are your needs Jorel. Your 4:3 picture is fullscreen or with black borders ? And when you say "16:9" do you mean anamorphic ?

Second : do you use moviestacker ? Do you use gripfit ?

jorel · #5 04-23-2004, 06:03 PM

second question is the first:

i love and use MovieStaker and sometimes use gripfit!

first question is second:

i want ot load a script using lanczos4resize but not for resize.
i want encode like the source

without change the aspect radio (kvdv 720x480)
only using lanczos4resize to give little sharpness.
but i don't know how it will show in the tv!?!?
will be egg-head?..anamorphic?
this i don't know and if is usable!
Phil,if i was unclear,please ask again my friend,you know my limitations!

thanks!

Dialhot · #6 04-23-2004, 06:12 PM

1/ using a resizer without changing the size do nothing. Almost all the resizer are optimized to avoid to process a picture if there is no need (in other words, if you don't change the size).

2/ for what you want to do (go from 720*480 to 720*480) you can't control the A/R on the 16:9; I meant that the target will appear on the 16:9 screen the same way that the original video appears on it !
All depend on zoom mode that is supported by your TV set. Some cuts the picture, others distort the image to fit it into the 16:9 screen... But you can't do anything to avoid that.

jorel · #7 04-23-2004, 06:34 PM

than if i want or need, the script can only have the source and some filters like

asharp,deen or temporalcleaner....or MA without gripfit

without any resize

"....same way that the original video appears on it ! "
that is the target....means that i will get like the original dvd, right Phil?
my tv have zoom but it's not important, i will get another tv later
and don't want to use overscan or resize in my encodes too !

i'm stup and always need confirmations...