Zoom/Tilt/Pan greyed out

[Astroman]

Describe the bug
All controls work as expected except that zoom, tilt, and pan are greyed out.

To Reproduce
Steps to reproduce the behavior:

1. Go to Advanced tab
2. Click on Zoom slider, etc
3. Nothing happens

Expected behavior
I expected to control the zoom level

Desktop (please complete the following information):

• MacOS 11.6 on M1 Mac Mini
• EACH CA602 web cam (https://www.amazon.com/gp/product/B0823DXX8W/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1)

[Itaybre]

@Astroman have you been able to zoom and tilt on another software (or OS)?

Not all cameras may support this. Greyed sliders, usually mean not supported

[enquora]

With the issue # 15 patch applied, the Zoom control is enabled for a Microsoft LifeCam but it has no effect. This camera does support zooming. There may be multiple intersecting problems.

[Itaybre]

@enquora can you try doing it while doing Google Meet call with low resolution selected?

Since zoom is digital, it usually depends on the camera resolution.
This would allow you to test this easily

[Astroman]

@Astroman have you been able to zoom and tilt on another software (or OS)?

Not all cameras may support this. Greyed sliders, usually mean not supported

iGlasses and Webcam Effects both have zoom and pan sliders. They crop the image to a portion of the frame and move that portion around to pan.

Edit: Ah, I understand now. The other apps implement a virtual camera whereas CameraControl uses the camera's builtin capabilities. I'll need to use one of them, along with Chrome for Discord, Facetime and Zoom, to pan and zoom the image. Sorry for the red herring and thanks.

[Itaybre]

@Astroman have you been able to zoom and tilt on another software (or OS)?
Not all cameras may support this. Greyed sliders, usually mean not supported

iGlasses and Webcam Effects both have zoom and pan sliders. They crop the image to a portion of the frame and move that portion around to pan.

I think iGlasses uses a different method for this, it creates a virtual camera, right?
Then streams the original feed to it while doing it's effects

[enquora]

Working as expected when an external client app is connected.

[Itaybre]

@enquora good to hear, I will add an option to allow changing the preview quality or just a disclaimer about zoom depending on the quality

[Itaybre]

@Astroman there is still a chance this is an issue on CameraController, we can use this app to see the USB descriptor parsed by another app.

If you go to:

1. USB Probe
2. Your Device
3. Look for the interface that says Video/Control
4. VDC (Control) Input Terminal
5. Controls Supported

You should be able to see what options should be available for the camera, like this:

[Astroman]

Sure enough, zoom is not supported. I'll try OBS with Chrome. Thanks for the help.

            Controls Supported   Description
                   Auto Exposure Mode
                   Exposure Time (Absolute)
                   Focus (Absolute)
                   Iris (Absolute)

[Itaybre]

I will close the issue then