PythonUtils/checkFPS.py at master · balaji-g/PythonUtils · GitHub

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import cv2, time

def main():
    checkVideoFPS()
    checkCamFPS()

def checkVideoFPS():

    video = cv2.VideoCapture("/Users/anshul/Freelancing/Innocule/data/dumping-webcamshots/North-15Apr-1600hrs/North-15Apr-1600hrs.mp4");

    # Find OpenCV version
    (major_ver, minor_ver, subminor_ver) = (cv2.__version__).split('.')

    if int(major_ver)  < 3 :
        fps = video.get(cv2.cv.CV_CAP_PROP_FPS)
        print('Frames per second using video.get(cv2.cv.CV_CAP_PROP_FPS): ', str(fps))
    else :
        fps = video.get(cv2.CAP_PROP_FPS)
        print('Frames per second using video.get(cv2.CAP_PROP_FPS): ', str(fps))

    video.release()

def checkCamFPS():
    # Start default camera
    video = cv2.VideoCapture(0);

    # Find OpenCV version
    (major_ver, minor_ver, subminor_ver) = (cv2.__version__).split('.')

    # With webcam get(CV_CAP_PROP_FPS) does not work.
    # Let's see for ourselves.

    if int(major_ver)  < 3 :
        fps = video.get(cv2.cv.CV_CAP_PROP_FPS)
        print('Frames per second using video.get(cv2.cv.CV_CAP_PROP_FPS): ', str(fps))
    else :
        fps = video.get(cv2.CAP_PROP_FPS)
        print('Frames per second using video.get(cv2.CAP_PROP_FPS) : ', str(fps))


    # Number of frames to capture
    num_frames = 120;


    print('Capturing ', str(num_frames), ' frames')

    # Start time
    start = time.time()

    # Grab a few frames
    for i in range(0, num_frames) :
        ret, frame = video.read()


    # End time
    end = time.time()

    # Time elapsed
    seconds = end - start
    print('Time taken : ', str(seconds) ,'seconds')

    # Calculate frames per second
    fps  = num_frames / seconds;
    print('Estimated frames per second : ', str(fps));

    # Release video
    video.release()

if __name__=="__main__":
    main()