python3视频的读取以及保存

视频的读取和保存

import cv2
cap = cv2.VideoCapture(‘test.mp4’) # 写入自己的视频路径
fourcc = cv2.VideoWriter_fourcc(*‘XVID’)
fps =cap.get(cv2.CAP_PROP_FPS)
size = (int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)), int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)))
out = cv2.VideoWriter(’./output.avi’,fourcc, fps, size) # 输出视频路径

while(cap.isOpened()):
ret, frame = cap.read()
if ret==True:
frame = cv2.flip(frame,0)

    out.write(frame)
    cv2.imshow('frame',frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break
else:
    break

cap.release()
out.release()
cv2.destroyAllWindows()

# 读取并播放视频

import cv2 as cv

cap = cv.VideoCapture(’*.avi’) # 写入自己的视频路径
FPS = cap.get(cv.CAP_PROP_FPS)
print(FPS)
delay = int(1000/FPS)

while cap.isOpened():
ret, frame = cap.read()
# if frame is read correctly ret is True
if not ret:
print(“Can’t receiv