OV2680_LINES_PER_FRAME_30FPS
def = OV2680_LINES_PER_FRAME_30FPS - OV2680_DEFAULT_HEIGHT;
def = OV2680_LINES_PER_FRAME_30FPS - height;
max = OV2680_LINES_PER_FRAME_30FPS - OV2680_INTEGRATION_TIME_MARGIN;