import sys, argparse

from gooey import Gooey

@Gooey
def main():
    parser = argparse.ArgumentParser(description='The program displays the video.')
    parser.add_argument('-i', dest = 'videoFilename', help = 'name of the video file', required = True)
    parser.add_argument('-f', dest = 'firstFrameNum', help = 'number of first frame number to display', default = 0, type = int)
    parser.add_argument('--fps', dest = 'frameRate', help = 'approximate frame rate to replay', type = float)
    parser.add_argument('-r', dest = 'rescale', help = 'rescaling factor for the displayed image', default = 1., type = float)

    args = parser.parse_args()

    firstFrameNum = 0
    if args.firstFrameNum is not None:
        firstFrameNum = args.firstFrameNum

    frameRate = -1
    if args.frameRate is not None:
        frameRate = args.frameRate

    print('{} {} {} {}'.format(args.videoFilename, firstFrameNum, frameRate, rescale = args.rescale))

main()