Vapoursynth Looping

[jay123210599]

How do I loop certain frames in a video using Vapoursynth?

[_Al_]

that will replace frames
https://www.vapoursynth.com/doc/functions/video/freezeframes.html#freezeframes

[jay123210599]

that will replace frames
https://www.vapoursynth.com/doc/functions/video/freezeframes.html#freezeframes

Okay, say I have a video. I want to start from the beginning and then loop frames 405-533 5 times. How do I do that?

[Z2697]

[:405]+[405:534]*5(6?)+[534:]

[jay123210599]

[:405]+[405:534]*5(6?)+[534:]

Put that in a full script with a video file included.

[StainlessS]

Put that in a full script with a video file included.
Since you're gonna ask how to mod for your script, why not provide YOUR script and maybe Z2697 can alter/insert to suit your script.

[jay123210599]

Since you're gonna ask how to mod for your script, why not provide YOUR script and maybe Z2697 can alter/insert to suit your script.

Here's my script:

from vapoursynth import core
clip = core.ffms2.Source(r"video.mp4")
clip = core.std.FreezeFrames(clip, [:405]+[405:534]*5(6?)+[534:])
clip.set_output()

[Columbo]

Could be wrong but I don't think you need the (6?). Maybe he was just indicating that the 5 should possibly be a 6 instead.

[Z2697]

I mean it's a syntactic sugar of VapourSynth/Python.

clip = clip[:405] + clip[405:534]*5 + clip[534:]

5(6?) means the "loop for 5 times" description is ambigous (to me)

[jay123210599]

I mean it's a syntactic sugar of VapourSynth/Python.

clip = clip[:405] + clip[405:534]*5 + clip[534:]

5(6?) means the "loop for 5 times" description is ambigous (to me)

I got this:
vapoursynth.Error: Trim: invalid last frame specified (last is less than first)

[_Al_]

you do not have enough frames in your clip

[Adub]

You should updating Z2697's example with your own frame numbers.

That's what those numbers are in the brackets, they are frame numbers.

clip[:405] means all the frames up to frame 405

clip[405:534] means all of the frames between frames 405 and 534.

clip[534:] means frames starting from 534 and onwards.

The "* 5" means create 5 copies of the trimmed clip. The "+"s in the expression indicate to concatenate (add) together everything into a new contiguous clip.

Which frames you want to loop are dependent on your source.

This is explained in the documentation: https://www.vapoursynth.com/doc/pythonreference.html#slicing-and-other-syntactic-sugar

[jay123210599]

You should updating Z2697's example with your own frame numbers.

That's what those numbers are in the brackets, they are frame numbers.

clip[:405] means all the frames up to frame 405

clip[405:534] means all of the frames between frames 405 and 534.

clip[534:] means frames starting from 534 and onwards.

The "* 5" means create 5 copies of the trimmed clip. The "+"s in the expression indicate to concatenate (add) together everything into a new contiguous clip.

Which frames you want to loop are dependent on your source.

This is explained in the documentation: https://www.vapoursynth.com/doc/pythonreference.html#slicing-and-other-syntactic-sugar

All right, I fixed it. Now how do I make my video loop for a total of 24 hours?

[Z2697]

Are we ChatGPT?

[_Al_]

All right, I fixed it. Now how do I make my video loop for a total of 24 hours?
Use mpv player and such to repeat your videos