Avidemux Forum

I made a video using a couple of hundred images, with output set to 1fps so that each image had a duration of several seconds.  The video works perfectly on my laptop, but the TV would not play the video due to "unsupported video format".  The problem is the 1fps output. (I know this because I ran a test video with 25fps output, which displayed perfectly on TV but each image lasted only a fraction of a second.)
How can I keep 25fps (for TV compatibility) while "slowing down" the video so that each image remains displayed for a few seconds?  Can Avidemux do this?

Quote from: DRWin on February 14, 2026, 02:26:42 PMHow can I keep 25fps (for TV compatibility) while "slowing down" the video

Have you tried the "Resample FPS" filter ?

You can  achieve this in Avidemux, but it's a bit buggy. The first and last frames/images will usually have the wrong duration.
You could add blank frames/images at the beginning and end, but personally I would do this with FFmpeg.

Here are the steps for Avidemux.

If you want your images to display for 3 seconds each and an output of 25fps, apply the following steps:

Import images and set Video Output of choice.

In Filters dialogue select Change FPS filter and set Destination frame rate: to 1

Add Resample FPS filter and set New frame rate: to 75.
This is set to 3 x output frame rate (3 × 25).

Add a second Change FPS filter and set New frame rate: to 25.
The output frame rate.

Filters must be applied in above order.

Sark