Command to produce black frames from frame x to y?

[Franko30]

Hi,

sorry for bothering but I guess now is my time for an annoying "noob" question.:confused:

A while ago I read (in the XVID) forum of a command for avisynth that sets it to deliver only "black" from a given frame onwards.

But now that I need it, I cant't find it anymore.

I searched the forum, but can't find the right combination of search terms and in the Avisynth "Learn to script" guide I only find "Blackness" - but how can I insert this into a script.

The example would be (to help you imagine what I'm trying to do):

Normal treatment of a movie with the usual crop, resize, etc. and then from frame x to y I want to have only black frames. Preferrably at the end, so from x onwards would be suiting me fine, if it might be the only possibility.

Is it possible?

Thanks in advance.

Franko30

[matrix]

This script would do it.

clip=mpeg2source("C:\Movie\movie.D2V")
t1=clip.Trim(0,whatever)
t2=BlankClip(length=whatever, width=whatever, height=whatever, fps=whatever, color=$000000).ConvertToYUY2
return t1+t2

[Franko30]

Thanks for the answer.

But somehow my logic fails. I simply can't make any sense out of the blank clip syntax and where to insert into the script.

So, how would I insert it in the script below, assuming I want frame 0 to 600 and 60000 to 62000 to be black?

Thanks again

Franko30

-----------------------------------------

Script
(for encoding a TV capture from a digital receiver; to be loaded in VirtualDub):


LoadPlugin("C:\PROGRA~1\GORDIA~1\mpeg2dec.dll")

mpeg2source("E:\ZDF Doku-Teil3.d2v")

crop(6,3,696,570)

SmartDeinterlace(2,15,true,true,true)

TemporalSmoother(2,1)

BicubicResize(576,432,0,0.75)

[Wilbert]

First read: http://www.avisynth.org/index.php?page=BlankClip.

So, start with loading your real clip:

LoadPlugin("C:\PROGRA~1\GORDIA~1\mpeg2dec.dll")

clip = mpeg2source("E:\ZDF Doku-Teil3.d2v")
clip = clip.crop(6,3,696,570)
clip = clip.SmartDeinterlace(2,15,true,true,true)
clip = clip.TemporalSmoother(2,1)
clip = clip.BicubicResize(576,432,0,0.75)

Then use Blankclip:

bclip1 = Blankclip(clip, 600) # bclip1 will take the parameters of clip
bclip2 = Blankclip(clip, 2000) # bclip2 will take the parameters of clip

Add them:

bclip1 + clip + bclip2

[sh0dan]

Perhaps a function would be appropriate (hint: ShareFunctions (http://www.avisynth.org/index.php?page=ShareFunctions) )

[Candock]

i'm new to AVISynth and don't know if the grammar is right
but my idea ist this!

AVISource("video.avi").trim(MovieBegin, BeginOfBlackness-1)+AVISource("video.avi").Tweak(0, 1, -255, 0).trim(BeginOfBlackness, EndOfBlackness)+AVISource("video.avi").trim(EndOfBlackness+1, MovieEnd)

{
and here the rest
}

[sh0dan]

Have a look at the first section here (http://www.avisynth.org/index.php?page=Troubleshooting). :)

[Franko30]

@ Wilbert:

Thanks a lot - my head ist still smoking, as I've only used GKnot's scripts so far - but with this example I was able to see the logics behind Blankclip that I just didn't see before.
My problem was, that I didn't find out how to insert the Blankclip of X frames into the script.

Again thanks for the solution.

@ the others:

Thanks to you, too!

Cheers

Franko30