小编Rob*_*ern的帖子

我试图在OSX下为OpenCV的python包装器创建一个视频.我正在使用python 2.7.1,opencv 2.3.1a,以及来自该版本opencv的willowgarage的python包装器.我有:

import cv,cv2
w = cv2.VideoWriter('foo.avi', cv.FOURCC('M','J','P','G'), 25, (100,100))
for i in range(100):
    w.write(np.ones((100,100,3), np.uint8))

OpenCV说

WARNING: Could not create empty movie file container.
Didn't successfully update movie file.
... [ 100 repetitions]

我不确定下一步该尝试什么