PythonOpencv——获取指定时间内的视频片段以及帧

参考&＃xff1a;OpenCV截取指定时间范围内的视频&＃xff08;python&＃xff09;_Qyun_lucky_star的博客-CSDN博客

import cv2def capture_video(video_path, result_video_path, video, result_video, start_time, end_time):"""功能&＃xff1a;截取短视频参数&＃xff1a;video_path&＃xff1a;需要截取的视频路径result_video_path&＃xff1a;截取后的视频存放的路径video&＃xff1a;需要截取的视频的名称&＃xff08;不带后缀&＃xff09;result_video&＃xff1a;截取了的视频的名称&＃xff08;不带后缀&＃xff09;start_time&＃xff1a;截取开始时间&＃xff08;单位s&＃xff09;end_time&＃xff1a;截取结束时间&＃xff08;单位s&＃xff09;"""# 读取视频cap &＃61; cv2.VideoCapture(video_path &＃43; video)# 读取视频帧率fps_video &＃61; cap.get(cv2.CAP_PROP_FPS)# 设置写入视频的编码格式fourcc &＃61; cv2.VideoWriter_fourcc(*"mp4v")# 获取视频宽度和高度frame_width &＃61; int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))frame_height &＃61; int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))# 设置写视频的对象videoWriter &＃61; cv2.VideoWriter(result_video_path &＃43; result_video, fourcc, fps_video, (frame_width, frame_height))# 初始化一个计数器count &＃61; 0while (cap.isOpened()):# 按帧读取视频里的图片ret, frame &＃61; cap.read()# 如果视频没有读取结束if ret &＃61;&＃61; True:# 计数器加一count &＃43;&＃61; 1# 截取相应时间内的视频信息if(count > (start_time * fps_video) and count <&＃61; (end_time * fps_video)):# 将图片写入视屏videoWriter.write(frame)if(count &＃61;&＃61; (end_time * fps_video)):breakelse:# 写入视屏结束videoWriter.release()breakif __name__ &＃61;&＃61; &＃39;__main__&＃39;:video_path &＃61; "./"result_video_path &＃61; "result/"video &＃61; "中长跑视频回放2.mp4"result_video &＃61; "result_test_video.mp4"start_time &＃61; 7 * 60 &＃43; 0end_time &＃61; 7 * 60 &＃43; 6capture_video(video_path, result_video_path, video, result_video, start_time, end_time)# 切成帧"""import cv2video &＃61; "./result/result_test_video.mp4"cap &＃61; cv2.VideoCapture(video)frame_id &＃61; 0while (cap.isOpened()):ret, frame &＃61; cap.read()if ret&＃61;&＃61;True:cv2.imwrite(&＃39;./2/&＃39;&＃43;str(frame_id)&＃43;&＃39;.jpg&＃39;,frame)frame_id&＃43;&＃61;1else:cap.release()"""