Question about displaying an image over HDMI.

[jpentecost]

Hello Everyone,
I hope I'm posting this in the correct place.

I have a need to display a frame on an HDMI display for a set number of frames. So say the display was running at 25hz I would like to display black for 20 frames and then a JPG or TIFF for 5 frames.

I had the idea that I could decode the HDMI sync signal and feed it back into a GPIO then count the pulses but does anyone know if this is possible with the PI (Preferably from Python!)?

Justin Pentecost

[ghans]

Are you sure this special custom-made slideshow software is the
solution to your real problem ?

Would a slideshow encoded as video (in advance)
not work ?

ghans