default return -1 not 0

wangzhibo

2022-03-23 f974d1d3e4c89cf1d89f86e50170ebfb93a6445a

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# -*- coding: utf-8 -*-
__author__ = '上海色宁'
 
image_clip = [176,234,278,422]     # for  video.mp4
#image_clip = [226,266,200,300]     # for  new.mp4
#image_clip = [220,275,210,300]     # test image