视频写入

 

 

import numpy as np
import cv2

# 从文件读取视频内容
cap = cv2.VideoCapture('videos/cats.mp4')
# 视频每秒传输帧数
fps = cap.get(cv2.CAP_PROP_FPS)
# 视频图像的宽度
frame_width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
# 视频图像的长度
frame_height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
print(fps)
print(frame_width)
print(frame_height)

fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter('video/output.avi',fourcc,fps,(frame_width,frame_height))

while(True):
    ret, frame = cap.read()
    if ret==True:
        # 水平翻转
        frame = cv2.flip(frame,1)
        out.write(frame)
        cv2.imshow('frame',frame)
        if cv2.waitKey(25) & 0xff == ord('q'):
            break
    else:
        break
out.release()
cap.release()
cv2.destroyAllWindows()