最終更新:2020-05-22 (金) 17:47:24 (13d)  

cv::CAP_PROP_POS_FRAMES
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https://docs.opencv.org/master/d4/d15/group__videoio__flags__base.html#ggaeb8dd9c89c10a5c63c139bf7c4f5704da6223452891755166a4fd5173ea257068

0-based index of the frame to be decoded/captured next.