No "sport" exposure mode

[felixhesshaw]

Hello,

thanks for your great work! I want to use the pi cam hq with the shortest shutter time possible.
Is there any way to activate the sports exposure mode with picamera2?
This is from the libcamera -help output:
'--exposure arg (=normal) Set the exposure mode (normal, sport)'

Couldn't find this option in picamera2 but maybe I missed something.

Thanks in advance
Felix

[davidplowman]

In Picamera2 you needs to set the "AeExposureMode" control. You can do this in the start method. For "sport" mode you want what libcamera calls the "short" exposure mode. Unfortunately at the moment this is referred to by its numerical value, which is obviously something that needs to be improved. In this case the value is 1 (see here). So you'd use:

picam2.start({"AeExposureMode": 1})

If you want more precise control of the the exposure mode, you could edit the camer's JSON tuning file.

[davidplowman]

I've pushed an update to the picamera2 branch of the raspberrypi/libcamera repo. If you rebuild this you should be able to use (for example) libcamera.AeExposureMode.Short.

[davidplowman]

The fix was confirmed in another similar report so I'll close this one now. Please feel free to file a new report if you're still having problems. Thanks!