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直接上代码:
import cv2
cap = cv2.VideoCapture(0)
fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter('video/lianzheng.avi', fourcc, 20.0, (600, 600))
while True:
ret, frame = cap.read()
out.write(frame)
cv2.imshow('frame', frame)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
cap.release()
out.release()
cv2.destroyAllWindows()
代码运行没有任何错误,同时也会生成avi文件但是无法播放。
网上也有这样解决的out = cv2.VideoWriter('video/lianzheng.avi', -1, 20.0, (600, 600))
将第二个参数改成了-1,在程序运行时,选择电脑中有的视频编码,但运行还是会出现问题:
cv2.error: C:\projects\opencv-python\opencv\modules\videoio\src\cap_vfw.cpp:840: error: (-209) image size is different from the currently set frame size in function CvVideoWriter_VFW::writeFrame
OpenCV: FFMPEG: tag 0xffffffff/'����' is not found (format 'avi / AVI (Audio Video Interleaved)')'
经分析还是video size的问题。
将储存视频大小改成640*480
out = cv2.VideoWriter('video/lianzheng.avi', fourcc, 20.0, (640, 480))
注:若存储的是视频文件,则要与原视频文件size相同