Disable auto brightness adjustment for camera

[BernhardA]

Hi there,
does anyone of you know if it is possible to turn off/disable the auto brightness adjustment of the camera for example in the "Camera Example with AutoFocus Support v3.0"?
I need this cause i'm trying to calculate the ambient light brightness by using the on-board camera. yes i know in most mobile phones are ambient light sensor built in but i want to do the calculation with the camera.
thank for helping me!

BR
Bernhard

[kamalakshan]

Hi there,
does anyone of you know if it is possible to turn off/disable the auto brightness adjustment of the camera for example in the "Camera Example with AutoFocus Support v3.0"?
I need this cause i'm trying to calculate the ambient light brightness by using the on-board camera. yes i know in most mobile phones are ambient light sensor built in but i want to do the calculation with the camera.
thank for helping me!

BR
Bernhard

Not aware of any public apis to tweak this feature.

[chenziteng]

Hi,

The ECam defined CCamera::SetBrightnessL() but don't know if it is implemented on all S60 phones.

// .h
...
CCamera* iCamera;
TCameraInfo iCameraInfo;
...

// .cpp
...
iCamera->CameraInfo(iCameraInfo);
...
if(iCameraInfo.iOptionsSupported&TCameraInfo::EBrightnessSupported)
    {
    TRAPD(err, iCamera->SetBrightnessL(0)); // fixed brightness instead of auto brightness calculation (CCamera::EBrightnessAuto)
    if(err!=KErrNone)
        {
        // can still be something wrong
        }
    }

Regards

Ziteng Chen

[BernhardA]

wow that's exactly what i'm looking for!
thank you very much chenziteng!

BR
Bernhard