postproc.add_option('-k', '--keep-video', action='store_true', dest='keepvideo', default=False,
help='keeps the video file on disk after the post-processing; the video is erased by default')
postproc.add_option('--no-post-overwrites', action='store_true', dest='nopostoverwrites', default=False,
postproc.add_option('-k', '--keep-video', action='store_true', dest='keepvideo', default=False,
help='keeps the video file on disk after the post-processing; the video is erased by default')
postproc.add_option('--no-post-overwrites', action='store_true', dest='nopostoverwrites', default=False,