Camera board • Syncing IMX708 captures on RPi 5?

Getting back into playing around with stereo capture with raspberry pi after 7 years (wow) and it seems I may have jumped the gun on buying hardware. I was really excited to see two camera ports on the pi 5 but surprised to learn the new libcamera library doesn't support synchronized capture between the ports. Then surprised furthermore that the legacy camera interface (not even an option in my raspi-config?) does not support the IMX708.

I've also read the thread about hardware synchronization for the IMX477, but it seems that's not applicable to the IMX708. So as I understand it, there is currently no HW or SW solution to sync the IMX708 imagers when used with a raspberry pi 5 - Is that correct?

Seems like my only options are:
- User space psuedo-sync with a multi threaded app that coordinates getting the frames one at a time from two threads (not ideal)
- Buy IMX477's and use the hardware sync solution
- Buy IMX219's and fall back on the legacy mmal interface

Am I understanding things correctly, or are there other options? A bit disappointed that the new pi with two camera interfaces doesn't support syncing them out of the box when that was a previous feature, but I probably shouldn't have assumed.

Statistics: Posted by NatePiVision — Fri Feb 23, 2024 5:35 am

---