void VideoInput::updateFrame() {
static HiResTimer timer;
// Start the timer for fps calculations
if(frameCount == 1)
timer.start();
static double trackerResolution = frame.size().height;
frameCount++;
// Every 20 frames, calculate the fps and reset timer
if(frameCount % 20 == 0) {
timer.stop();
frameRate = (double) 20 / (timer.getElapsedTime()/1000.0);
timer.start();
}
if (!(captureFromVideo && frameCount == 1)) {
// If capturing from video and video size is not equal to desired resolution, carry on with resizing
if (captureFromVideo && videoResolution != trackerResolution) {
cv::Mat temp_image;
_capture.read(temp_image);
cv::Mat roi = temp_image;
if (videoResolution == 720 && trackerResolution == 480) {
roi = temp_image(cv::Rect(160, 0, 960, 720));
} else if (videoResolution == 1080 && trackerResolution == 480) {
roi = temp_image(cv::Rect(240, 0, 1440, 1080));
}
resize(roi, frame, frame.size(), 0, 0, CV_INTER_CUBIC);
} else {
_capture.read(frame);
}
}
if(frame.empty()) {
throw Utils::QuitNow();
}
if (!captureFromVideo) {
flip(frame, frame, 1);
}
copyToDebugFrame();
cvtColor(frame, frameGrey, CV_BGR2GRAY);
}
HiResTimer* InitTimer(int clock_number) {
HiResTimer* timer;
timer = HiResTimer::getHiResTimer(clock_number); //for keeping time
timer->init();
timer->start();
return (timer);
}
