直接上代碼:
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()
代碼運行沒有任何錯誤,同時也會生成avi文件但是無法播放。
網上也有這樣解決的out = cv2.VideoWriter('video/lianzheng.avi', -1, 20.0, (600, 600))
將第二個參數改成了-1,在程序運行時,選擇電腦中有的視頻編碼,但運行還是會出現問題:
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)')'
經分析還是video size的問題。
將儲存視頻大小改成640*480
out = cv2.VideoWriter('video/lianzheng.avi', fourcc, 20.0, (640, 480))
注:若存儲的是視頻文件,則要與原視頻文件size相同