How it works...

The mencoder command requires that the input file be formatted as one image file per line. The first line of the script echoes the command line arguments to the tr command to convert the space delimiters to newlines. This transforms the single-line list into a list of files arranged one per line.

You can change the speed of the video by resetting the FPS (frames-per-second) parameter. For example, setting the fps value to 1 will make a slide show that changes images every second.