Accessing CCameraAdvancedSettings

[dereknoffke]

This is my code:

			iSettings = CCamera::CCameraAdvancedSettings::NewL( *(iCameraWrapper->Camera()) );
			RDebug::Print( ECCameraHandler_TakePhoto, _L8("iCameraWrapper->IsAutoFocusSupported()= %d"),iCameraWrapper->IsAutoFocusSupported());
			RDebug::Print( ECCameraHandler_TakePhoto, _L8("iSettings->SupportedAutoFocusTypes()= %d"),iSettings->SupportedAutoFocusTypes());
			RDebug::Print( ECCameraHandler_TakePhoto, _L8("iSettings->SupportedFocusModes()= %d"),iSettings->SupportedFocusModes());

On my nokia 5800 I get:

1.52.57.698 CCameraHandler_TakePhoto - iCameraWrapper->IsAutoFocusSupported()= 1
1.52.57.723 CCameraHandler_TakePhoto - iSettings->SupportedAutoFocusTypes()= 1
1.52.57.734 CCameraHandler_TakePhoto - iSettings->SupportedFocusModes()= 1

On my nokia C5 I get:

1:47:53.625 CCameraHandler_TakePhoto - iCameraWrapper->IsAutoFocusSupported()= 1
1:47:53.646 CCameraHandler_TakePhoto - iSettings->SupportedAutoFocusTypes()= 0
1:47:53.664 CCameraHandler_TakePhoto - iSettings->SupportedFocusModes()= 0

The CameraWrapper code is:

TBool CCameraEnginePrivate::IsAutoFocusSupported() const
490	  {
491	  if( !iAdvSettings )
492	    {   
493	    return (iAutoFocus) ? ETrue : EFalse;
494	    }
495	#if !defined(__WINS__)
496	  return ( iAdvSettings->SupportedFocusModes() &
497	           CCamera::CCameraAdvancedSettings::EFocusModeAuto );
498	#else // __WINS__
499	  return EFalse;
500	#endif // !__WINS__
501	  }

The CCameraEnginePrivate::IsAutoFocusSupported() seems to use the same AdvancedSettings and get a different answer...

Can anyone help?

[dereknoffke]

Tried:

			//iSettings = CCamera::CCameraAdvancedSettings::NewL( *(iCameraWrapper->Camera()) );
			iSettings = iCameraWrapper->AdvancedSettings();

Same results.

[TongMuan]

On my nokia 5800 I get:
...

On my nokia C5 I get:
...

Hi,

Seems like CameraWrapper's IsAutoFocusSupported function is not working correctly on C5. Based on the function's copy-pasted code in OP, it seems that C5 says it supports EFocusModeAuto, and that causes the wrapper to assume that autofocus is supported - probably the correct return value for C5 would be EFocusModeFixed, so the problem is in the device's CCamera implementation.

However, as a workaround (as you are using CCameraAdvancedSettings directly already) you could double-check via SupportedAutoFocus* function return values that autofocus is really supported in case IsAutoFocusSupported returns true. You have already seen that SupportedAutoFocusTypes and SupportedFocusModes both return non-zero values on 5800 which really supports AF - if they are zero there's no way AF could work. Also, you can check supported focus ranges - at least EFocusRangeNormal and EFocusRangeHyperfocal should be supported on all AF-capable devices.

Btw, I'm not excactly sure (nor do I want to know) how CameraWrapper uses a "stub" CCameraAdvancedSettings on older devices that don't support advanced settings, but calling advanced settings autofocus functions directly like this may not give correct results on 3rd edition FP1 and older phones.

[dereknoffke]

Thanks TongMuan,

For some reason I thought that the C5-00 5MP was a 5th Edition. Perhaps the shop data was incorrect.

I will try compiling my app with the 3rd edition FP2 sdk and perhaps the results will be better.