QImage data via FFmpeg

[Degenko]

I'm working on code, that would simply play video frames using ffmpeg in QWidget. All of code is based on this tutorial: http://dranger.com/ffmpeg/tutorial01.c

I'll show only the part where I paint the image (since the rest is the same as in the tutorial I linked):

void MagicCube::PaintFrame(AVFrame *pFrame, int width, int height)
{
    QImage image(width, height, QImage::Format_RGB32);
    int x, y;
    int *src = (int*)pFrame->data[0];
 
    for (y = 0; y < height; y++)
    {
        for (x = 0; x < width; x++)
        {
            image.setPixel(x, y, src[x] & 0x00ffffff);
        }
        src += width;
    }
 
    QPainter painter(this);
    painter.drawImage(QRect(10, 37, width, height), image);
}

void MagicCube::PaintFrame(AVFrame *pFrame, int width, int height)
{
    QImage image(width, height, QImage::Format_RGB32);
    int x, y;
    int *src = (int*)pFrame->data[0];

    for (y = 0; y < height; y++)
    {
        for (x = 0; x < width; x++)
        {
            image.setPixel(x, y, src[x] & 0x00ffffff);
        }
        src += width;
    }

    QPainter painter(this);
    painter.drawImage(QRect(10, 37, width, height), image);
}

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The current code is working, but it has its problems - it's using 40+% of CPU. So, is there a way to avoid all the loops and just load the data into image (I tried a lot of combinations but with no success) or any other method?

Thanks.