Single Still To Video

[graham728]

Hi,

It may be obvious but I've tried without success.

I want to take a single PNG and make it into a five second video. Not sure how to do this?

Thanks!

[emcodem]

Hey Graham,

if you can use A/V decoder, just do it with a Custom Avisynth script:

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m_clip=loop(m_clip,250,0)
Return m_clip

Above means repeat frame 0 250 times, i think it would also work when written as m_clip=loop(m_clip,250)

Let me know if it works for you!

EDIT: we also have it in the stills decoder, i forgot... i believe it will do more or less the same internally but not 100% sure about it

[FranceBB]

i believe it will do more or less the same internally

Yep. I mean, kinda, but yeah. Well this

Screenshot 2025-11-30 221418.png (7.3 KiB) Viewed 4397 times

just like the A/V Decoder is going through an indexer, in this case ImageSource().
If we were writing a script from scratch, we would use the indexer to index the image and specify how many frames and at what framerate we want the image to become in the uncompressed A/V stream in our beloved frameserver.

For instance, to get 2 seconds (i.e 50 frames at 25fps) we would specify:

Screenshot 2025-11-30 222213.png (286.49 KiB) Viewed 4397 times

and that's exactly what we're doing in FFAStrans as well, namely using the indexer.

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ImageSource("' & $s_JOB_ORIGINAL_LOCAL_FILE & '", start = 0, end = ' & $i_PROC_LENGTH & ', fps = ' & $i_PROC_FPS & ')'

where the end is always calculated (i.e converted in frames) from the variable read from the user input and so are the fps.