Replace frames with black

[srfscenar]

Hi all,
Newbie in avisynth.

I have a video which is 271200frames.
I want to replace the part of my video between 800-950 frames
with total black.
How can I do that?

Thank you,

[poisondeathray]

Here is one way to do it

orig=last

bl=blankclip(orig)

orig.trim(0,799) ++ bl.trim(800,950) ++ orig.trim(951,0)

[srfscenar]

Thanks! Seems logical. But Avspmod says 'Splince: one clip has audio and the other doesn't (not allowed)' got any ideas?

[poisondeathray]

killaudio()

orig=last

bl=blankclip(orig).killaudio()

orig.trim(0,799) ++ bl.trim(800,950) ++ orig.trim(951,0)

[srfscenar]

That did it! Now it says Frame sizes doesn't match. Any idea about this?

[poisondeathray]

Are you sure ?

Blankclip(orig) will take on the dimensions , fps, and colorspace of "orig" (or whatever clip you specify)

What are your video characteristics (eg. use mediainfo), and source filter - post your full script

[srfscenar]

Sorry my bad! Worked perfectly!!!

[Gavino]

Originally Posted by poisondeathray

Blankclip(orig) will take on the dimensions , fps, and colorspace of "orig" (or whatever clip you specify)

It will also take on the presence or absence of an audio track - eg, if "orig" is video only, you get a blank video only clip - so the KillAudio() should not be necessary either. I suspect user error here too.