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  1. #1
    Registered User
    Join Date
    Aug 2009
    Posts
    25

    Change Camera::CaptureImage() Resolution

    Hi,

    I need to get an Image of 320x480.

    When I take a grab a picture using CCamera::CaptureImage(), I get an Image of 1280x960.

    SO after getting the bitmap, I resize it using CBitmapScaler::Scale()

    Everything works fine this way but the CBitmapScaler::Scale() takes 3 secs to execute. (Here I am not doing anything. I am simply calling the scale method of the CBitmapScaler giving the new height and width as parameters)

    Is it possible to set some properties of CCamera so that the CaptureImage function itself returns a bitmap of 320x240 instead of 1280x960

    OR

    Can someone tell me how can I speed up the CBitmapScaler::Scale()


    I think the former will be the better solution if possible.

    Thanks and Regards,

    Neelesh

  2. #2
    Regular Contributor
    Join Date
    May 2008
    Location
    Budapest, Hungary
    Posts
    84

    Re: Change Camera::CaptureImage() Resolution

    Quote Originally Posted by neelesh_a1 View Post
    Is it possible to set some properties of CCamera so that the CaptureImage function itself returns a bitmap of 320x240 instead of 1280x960
    See CCamera::PrepareImageCaptureL(), CCamera::EnumerateCaptureSizes(), they seem relevant to your problem.

  3. #3
    Nokia Developer Champion
    Join Date
    Mar 2006
    Location
    Helsinki, Finland
    Posts
    8,350

    Re: Change Camera::CaptureImage() Resolution

    Yes. Check the PrepareImageCaptureL() and pass the aSizeIndex. Use EnumerateCaptureSizes which will take TSize as a reference and will pass it back different sizes based on the aSizeIndex parameter.

    Before checking the following example, read for PrepareImageCaptureL() and EnumerateCaptureSizes() in the SDK help, thoroughly.

    Example: http://developer.symbian.org/main/do...mediaEx.Camera
    Nokia Developer Wiki Moderation team

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