使用python录制同时分割成多个视频

问题描述

我想知道如何在录制 3 个网络摄像头、将它们刻录到磁盘、为每个摄像头创建一个文件夹并实时分隔 3 分钟大小的视频的同时进行此操作。还要检查每个人是否连接到计算机，并使用线程执行此操作

我从用户 nathancy 找到了可以提供帮助的代码

from threading import Thread
import cv2
import time

data_string = time.strftime("%d_%m_%Y-%H_%M_%s")


class VideoWriterWidget(object):
    def __init__(self,video_file_name,src):
        self.frame_name = str(src)
        self.video_file = video_file_name
        self.video_file_name = data_string + video_file_name + '.mp4'
        self.capture = cv2.VideoCapture(src)
        self.frame_width = int(self.capture.get(3))
        self.frame_height = int(self.capture.get(4))
        self.codec = cv2.VideoWriter_fourcc('V','I','D','X')
        self.output_video = cv2.VideoWriter(self.video_file_name,self.codec,15,(self.frame_width,self.frame_height))
        self.thread = Thread(target=self.update,args=())
        self.thread.daemon = True
        self.thread.start()
        self.start_recording()
        print('initialized {}'.format(self.video_file))

    def update(self):
        while True:
            if self.capture.isOpened():
                (self.status,self.frame) = self.capture.read()
                self.momento = time.strftime("%d_%m_%Y-%H_%M_%s")

    def show_frame(self):
        if self.status:
            cv2.imshow(self.frame_name,self.frame)
        key = cv2.waitKey(1)
        if key == ord('q'):
            self.capture.release()
            self.output_video.release()
            cv2.destroyAllWindows()
            exit(1)

    def save_frame(self):
        self.output_video.write(self.frame)


    def start_recording(self):
        def start_recording_thread():
            while True:
                try:
                    self.show_frame()
                    self.save_frame()
                except AttributeError:
                    pass

        self.recording_thread = Thread(target=start_recording_thread,args=())
        self.recording_thread.daemon = True
        self.recording_thread.start()


if __name__ == '__main__':
    src1 = 'Your link1'
    video_writer_widget1 = VideoWriterWidget('Camera 1',0)
    src2 = 'Your link2'
    video_writer_widget2 = VideoWriterWidget('Camera 2',1)
    src3 = 'Your link3'
    video_writer_widget3 = VideoWriterWidget('Camera 3',2)
    while True:
        time.sleep(5)

解决方法

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