[FFmpeg-user] -Shortest command

[Les Irvin]

I'm using ffmpeg to automatically create real estate slideshows with 
still photos and an audio soundtrack. There could be anywhere from 20 to 
100 still photos to process. I understand there is no way to loop audio. 
But is there a way to tell ffmpeg to end the video when all the still 
photos have been processed? Due to the variable length of the audio 
(anywhere from 2-10 minutes), using the -shortest command often ends the 
video before all the photos have been seen. My current thought is to 
keep the -shortest command and just lengthen all the audio to 10 minutes 
or so.  But before I go to all that work, I wondered if there might be 
another, simpler solution.

Thanks in advance for any help.
Les