OpenCV Python QueryFrame Function Leaks Memory

I'm using the Python interface for OpenCV 2.2.0. The following code works correctly for grabbing frames from a video file: for f in range(1, frameCount): # grab the left and ri

Solution 1:

You should allocate memory for both images once: imageL = cv.CreateImageHeader(cv.GetSize(frameL), frameL.depth, frameL.channels) imageR = cv.CreateImageHeader(cv.GetSize(frameR), frameR.depth, frameR.channels)

then begin your loop and set the data:

cv.SetData(frameL, imageL)
cv.SetData(frameR, imageR)

so something like

for f in range(1, frameCount):
    # grab the left and right frames
    frameL = cv.QueryFrame(videoL)
    frameR = cv.QueryFrame(videoR)
    # create the image for the first frame
    if f==1:
        imageL = cv.CreateImageHeader(cv.GetSize(frameL), frameL.depth, frameL.channels)
        imageR = cv.CreateImageHeader(cv.GetSize(frameR), frameR.depth, frameR.channels)
    # update the images
    cv.SetData(frameL, imageL)
    cv.SetData(frameR, imageR)