AviSynth: Use the first frame of the delayed video instead of a black one.

[irn-bru]

Hi.

I have a simple script that delays a video by a set amount of time but I was wondering, instead of showing a black frame for the delayed amount of time, is there a way of using the first frame of the delayed video instead? As you can see in the code below, the video is delayed 12.5 seconds. The video on the right starts at frame 625. From frame 1-624, there's a black screen. I'd like to use frame 1 of the right-hand video instead of a black one if possible.

This is the text of the script:

clip1=DirectShowSource("C:\Users\irn-bru\Desktop\millerslide.mp4", audio=true).AddBorders(0, 0, 0, 0, color_black).LanczosResize(1280,720)
clip2=DirectShowSource("C:\Users\irn-bru\Desktop\marquezslide.mp4", audio=false).AddBorders(0, 0, 2, 0, color_black).LanczosResize(1280,720)
stackhorizontal(clip1, (delayvideo (clip2, 12.500)))

function delayvideo(clip thiz, float seconds)
{
assert(seconds!=0, "delayvideo: invalid delay value")
tF = abs(round(seconds*float(thiz.framerate)))
delayed = seconds < 0 ? thiz.trim(tF-1,0) : blankclip(thiz, tF) ++ thiz
return delayed
}

Any ideas?
Thanks.

EDIT:
OK, I worked out I can do it by adding the Loop function and chopping the code down to this:

clip1=DirectShowSource("C:\Users\irn-bru\Desktop\millerslide.mp4", audio=true).AddBorders(0, 0, 0, 0, color_black).LanczosResize(1280,720)
clip2=DirectShowSource("C:\Users\irn-bru\Desktop\marquezslide.mp4", audio=false).AddBorders(0, 0, 2, 0, color_black).LanczosResize(1280,720).Loop(624,1,1)
stackhorizontal(clip1, clip2)

...but it'd still be nice if there was a solution incorporating the original code too though.

[poisondeathray]

Hi.

I have a simple script that delays a video by a set amount of time but I was wondering, instead of showing a black frame for the delayed amount of time, is there a way of using the first frame of the delayed video instead? As you can see in the code below, the video is delayed 12.5 seconds. The video on the right starts at frame 625. From frame 1-624, there's a black screen. I'd like to use frame 1 of the right-hand video instead of a black one if possible.

This is the text of the script:

clip1=DirectShowSource("C:\Users\irn-bru\Desktop\millerslide.mp4", audio=true).AddBorders(0, 0, 0, 0, color_black).LanczosResize(1280,720)
clip2=DirectShowSource("C:\Users\irn-bru\Desktop\marquezslide.mp4", audio=false).AddBorders(0, 0, 2, 0, color_black).LanczosResize(1280,720)
stackhorizontal(clip1, (delayvideo (clip2, 12.500)))

function delayvideo(clip thiz, float seconds)
{
assert(seconds!=0, "delayvideo: invalid delay value")
tF = abs(round(seconds*float(thiz.framerate)))
delayed = seconds < 0 ? thiz.trim(tF-1,0) : blankclip(thiz, tF) ++ thiz
return delayed
}

Any ideas?
Thanks.

EDIT:
OK, I worked out I can do it by adding the Loop function and chopping the code down to this:

clip1=DirectShowSource("C:\Users\irn-bru\Desktop\millerslide.mp4", audio=true).AddBorders(0, 0, 0, 0, color_black).LanczosResize(1280,720)
clip2=DirectShowSource("C:\Users\irn-bru\Desktop\marquezslide.mp4", audio=false).AddBorders(0, 0, 2, 0, color_black).LanczosResize(1280,720).Loop(624,1,1)
stackhorizontal(clip1, clip2)

...but it'd still be nice if there was a solution incorporating the original code too though.

You can add a parameter in the function to control the frame that is looped. So in this example, frame 1 (but you can enter frame 10 or whatever you want repeated)

clip1=DirectShowSource("C:\Users\irn-bru\Desktop\millerslide.mp4", audio=true).AddBorders(0, 0, 0, 0, color_black).LanczosResize(1280,720)
clip2=DirectShowSource("C:\Users\irn-bru\Desktop\marquezslide.mp4", audio=false).AddBorders(0, 0, 2, 0, color_black).LanczosResize(1280,720)
stackhorizontal(clip1, (delayvideo (clip2, 12.500, 1)))

function delayvideo(clip thiz, float seconds, int "loopframe")
{
loopframe  = Default(loopframe, 0)
assert(seconds!=0, "delayvideo: invalid delay value")
tF = abs(round(seconds*float(thiz.framerate)))
delayed = seconds < 0 ? thiz.trim(tF-1,0) : thiz.trim(loopframe,-1).loop(tF) ++ thiz.trim(loopframe,0)
return delayed
}

[irn-bru]

You can add a parameter in the function to control the frame that is looped. So in this example, frame 1 (but you can enter frame 10 or whatever you want repeated)

clip1=DirectShowSource("C:\Users\irn-bru\Desktop\millerslide.mp4", audio=true).AddBorders(0, 0, 0, 0, color_black).LanczosResize(1280,720)
clip2=DirectShowSource("C:\Users\irn-bru\Desktop\marquezslide.mp4", audio=false).AddBorders(0, 0, 2, 0, color_black).LanczosResize(1280,720)
stackhorizontal(clip1, (delayvideo (clip2, 12.500, 1)))

function delayvideo(clip thiz, float seconds, int "loopframe")
{
loopframe  = Default(loopframe, 0)
assert(seconds!=0, "delayvideo: invalid delay value")
tF = abs(round(seconds*float(thiz.framerate)))
delayed = seconds < 0 ? thiz.trim(tF-1,0) : thiz.trim(loopframe,-1).loop(tF) ++ thiz.trim(loopframe,0)
return delayed
}

Perfect, thank you, it's very much appreciated! That is exactly what I hoped for.