Python 视频流读取

# 从本地设备获取视频
ffmpeg -i /dev/video0 -rtsp_transport tcp -f rtsp rtsp://192.168.xxx.xxx:xxx/test
# 从视频文件获取
ffmpeg -re -i ./1.mp4 -vcodec copy -rtsp_transport tcp -f rtsp rtsp://192.168.xxx.xxx:xxx/test

# coding=utf-8
import time
VIDEO_PATH = "rtsp://192.168.xxx.xxx:xxx/test"
def extract_frames(video_path):
    import cv2
    video = cv2.VideoCapture(video_path)
    while True:
        _, frame = video.read()
        if frame is None:
            time.sleep(0.5)
            print("wait 0.5 second to retry...")
        else:
            cv2.imshow("Frame", frame)
            if cv2.waitKey(1) & 0xFF == ord('q'):
                break
if __name__ == '__main__':
    extract_frames(VIDEO_PATH)