無法訪問GetCaptureProperty或Python中的任何類似功能opencv

Question

我在opencv 2.3和2.4中嘗試了很多組合來獲取視頻的幀數，但沒有任何結果。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 

'模塊' 對象有沒有屬性 'CV_CAP_PROP_FRAME_COUNT'

有人經過類似的東西？

Answer 1

你要小心一點你cv2和cv進口，這兩個工作：

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)