按秒数截取视频

最新推荐文章于 2024-08-15 23:00:09 发布

牛奶风车

最新推荐文章于 2024-08-15 23:00:09 发布

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文章标签： python 视频处理

本文链接：https://blog.youkuaiyun.com/qq_43676184/article/details/117044044

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import cv2
print(cv2.__version__)
#打开原完整视频
cap = cv2.VideoCapture(r'./007LXH 2-30.avi')#打开视频
if not cap.isOpened():#判断文件是否存在
    print ("could not open :",fn)
    sys.exit() 
length = cap.get(cv2.CAP_PROP_FRAME_COUNT)#获得该视频的帧数
h  = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
w  = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
fps = int(cap.get(cv2.CAP_PROP_FPS))#获得该视频的帧率
t = 6
print(fps)
print(length)
size = (w,h)
print(size)
#获取视频片段，保存
videoWriter =cv2.VideoWriter(r'./guanjianzhen/007LXH 6-30.avi',cv2.VideoWriter_fourcc('X','V','I','D'),fps,size)
i = 0
while True:
    success,frame = cap.read()
    if success:
        i += 1
        print('i = ',i)
        if(i>=(fps*t) and i <= ((t+30)*fps)):
            
            videoWriter.write(frame)
    else:
        print('end')   
        break