Using subsampling causes a crash

[Shea H]

Description
Turning on a subsampling frame and enabling subsampling in the imaging panel along with looped exposures causes NINA to crash every time.

Running 1.10HF1
Windows 10 on 2 different PCs
QHY camera with latest drivers

Steps to reproduce
Connect to camera
Switch to imaging panel
Place subsampling frame on image area
Turn on "enable subsampling" and "loop" in imaging panel
Select start exposure in imaging panel (not live view)

Expected behaviour
Framed area only is updated

Actual behaviour
Framed area appears to shrink with each successive image and odd stretching of the image occurs, and after 4-6 frames NINA crashes without reported error. Logs do not show any error occurring.

[Florian Brill]

Same problem here. Why is NINA having problems with getting images (or a specific ROI) in an appropriate timeframe. I’m currently using FireCapture to properly focus on a star. NINA is unfortunately not able to use it's own subsampling tool as reported above. I’mages need about 3-4s from camera to the screen (no subsampling involved). Not very responsive. I’m currently using a Qhy268c. It is probably not a driver issue on QHY side hence FireCapture is working properly. It would be nice, to get this fixed soon.

[Stefan B]

With color cameras there is the option to debayer and apply an unlinked stretch in the image options. both are cpu intensive operations and can take a while on slow machines. If you want faster download you should disable those.

In regards to sub sampling, you need to follow the following steps currently, that are different from above:

Connect to camera
Switch to imaging panel
Place subsampling frame on image area
Turn on "enable subsampling" and disable "loop" in imaging panel
Select start exposure in imaging panel (not live view)
After first exposure, disable sub sampling rectangle in image view
Continue with images

[Stefan B]

fixed with a rework in 1.11

[jean pascal vignes]

Does sub-sampling can be implemented in advanced sequencer ?