Tutorial: Implementing and using a Camera Plugin

Still Data

Still data is usually (but no neccesarily) for high resolution photos.

    QCameraStillCapture *still;
    connect(still, SIGNAL(imageReady(...)), this, SLOT(imageReadyForUse(...))); //received image data
    connect(still, SIGNAL(notifyPreSnap()), this, SLOT(imageAboutToBeTaken())); //be notified just before the image is actually taken
    still->takeStillImage(...); //take still image

Still data can be compressed (e.g JPEG) or raw pixel format encoded (e.g RGB, YUV data) The two cases are handled as follows: For raw pixel data the complete image is returned in the signal imageReady(...) For compressed data, a flag bool complete in the imageReady() signal indicates if there is more data available. If there is more data is should be appended to the existing image data until complete is true ).

    QCameraVideoCapture *video;
    video->start(...); //start recording
    // ...
    //Use the QIODevice interface to be read video data
    // ...
    video->stop(); //stop recording