autolab:duckietown-city:cameras
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autolab:duckietown-city:cameras [2022/12/12 12:23] valentina_golubeva |
autolab:duckietown-city:cameras [2022/12/19 09:39] (current) valentina_golubeva |
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| === Как записать видео с камеры === | === Как записать видео с камеры === | ||
| - | Создаём файлик с кодом ниже, передаём в качестве аргумента номер камеры при запуске.(python3 filename.py --cam_num 4) | + | Создаём файлик с кодом ниже. |
| + | |||
| + | |||
| + | from datetime import datetime | ||
| + | import cv2 | ||
| + | import argparse | ||
| + | parser = argparse.ArgumentParser() | ||
| + | parser.add_argument('--cam_num', type=int, default=1) | ||
| + | args = parser.parse_args() | ||
| + | if args.cam_num not in range(1, 7): | ||
| + | print(f"Camera with number{args.cam_num} does not exist!") | ||
| + | exit(0) | ||
| + | video = cv2.VideoCapture(f"http://autolab.moevm.info/camera_{args.cam_num}/live.mjpg") | ||
| + | if (video.isOpened() == False): | ||
| + | print("Error reading video file") | ||
| + | exit(0) | ||
| + | frame_width = int(video.get(3)) | ||
| + | frame_height = int(video.get(4)) | ||
| + | size = (frame_width, frame_height) | ||
| + | video_name = f"{datetime.now().strftime('%d_%m_%Y_%H:%M:%S')}.avi" | ||
| + | result = cv2.VideoWriter(video_name, cv2.VideoWriter_fourcc(*'MJPG'), 20, size) | ||
| + | while True: | ||
| + | ret, frame = video.read() | ||
| + | if ret == True: | ||
| + | result.write(frame) | ||
| + | cv2.imshow('Frame', frame) | ||
| + | if cv2.waitKey(1) & 0xFF == ord('s'): | ||
| + | break | ||
| + | else: | ||
| + | break | ||
| + | video.release() | ||
| + | result.release() | ||
| + | cv2.destroyAllWindows() | ||
| + | print(f"The video {video_name} was successfully saved") | ||
| + | |||
| + | |||
| + | === Запуск === | ||
| + | |||
| + | Передаём в качестве аргумента номер камеры при запуске. Доступны номера камер от 1 до 6. | ||
| + | |||
| + | python3 filename.py --cam_num 4 | ||
| - | from datetime import datetime | ||
| - | import cv2 | ||
| - | import argparse | ||
| - | parser = argparse.ArgumentParser() | ||
| - | parser.add_argument('--cam_num', type=int, default=1) | ||
| - | args = parser.parse_args() | ||
| - | if args.cam_num not in range(1, 7): | ||
| - | print(f"Camera with number{args.cam_num} does not exist!") | ||
| - | exit(0) | ||
| - | video = cv2.VideoCapture(f"http://autolab.moevm.info/camera_{args.cam_num}/live.mjpg") | ||
| - | if (video.isOpened() == False): | ||
| - | print("Error reading video file") | ||
| - | exit(0) | ||
| - | frame_width = int(video.get(3)) | ||
| - | frame_height = int(video.get(4)) | ||
| - | size = (frame_width, frame_height) | ||
| - | video_name = f"{datetime.now().strftime('%d_%m_%Y_%H:%M:%S')}.avi" | ||
| - | result = cv2.VideoWriter(video_name, | ||
| - | cv2.VideoWriter_fourcc(*'MJPG'), | ||
| - | 20, size) | ||
| - | while True: | ||
| - | ret, frame = video.read() | ||
| - | if ret == True: | ||
| - | result.write(frame) | ||
| - | cv2.imshow('Frame', frame) | ||
| - | if cv2.waitKey(1) & 0xFF == ord('s'): | ||
| - | break | ||
| - | else: | ||
| - | break | ||
| - | video.release() | ||
| - | result.release() | ||
| - | cv2.destroyAllWindows() | ||
| - | print(f"The video {video_name} was successfully saved") | ||
autolab/duckietown-city/cameras.1670847809.txt.gz · Last modified: 2022/12/12 12:23 by valentina_golubeva
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