无法访问GetCaptureProperty或Python中的任何类似功能opencv

Question

我在opencv 2.3和2.4中尝试了很多组合来获取视频的帧数，但没有任何结果。它似乎根本不存在。

stream = cv.VideoCapture(avsfilename) #stream.isOpened() returns True, everything's ok 
framecount = cv.GetCaptureProperty(stream, CV_CAP_PROP_FRAME_COUNT) #no 
framecount = cv.GetCaptureProperty(stream, cv.CV_CAP_PROP_FRAME_COUNT) #no 
framecount = stream.get(cv.CV_CAP_PROP_FRAME_COUNT) #no 
framecount = stream.get(CV_CAP_PROP_FRAME_COUNT) #no 

'模块' 对象有没有属性 'CV_CAP_PROP_FRAME_COUNT'

有人经过类似的东西？

Answer 1

你要小心一点你cv2和cv进口，这两个工作：

import cv2 
import cv2.cv as cv 

#Using cv2: 
stream = cv2.VideoCapture(filename) 
print stream.get(cv.CV_CAP_PROP_FRAME_COUNT) 

#using cv: 
stream = cv.CaptureFromFile(filename) 
print cv.GetCaptureProperty(stream, cv.CV_CAP_PROP_FRAME_COUNT)