Failed to read video frames in Docker container

[huang06]

Problem:

I try to read video frames in the official OpenVINO container but receive no frames:

docker pull openvino/ubuntu20_runtime:2021.1
docker run --rm -it -name test openvino/ubuntu20_runtime:2021.1 bash
docker cp video.mp4 test:/home/openvino/video.mp4

>>> import cv2
>>> video = cv2.VideoCapture('video.mp4')
>>> ret, frame = video.read()
>>> print(ret)
False
>>> print(frame)
None

While I try to read an image file, it works:

>>> import cv2
>>> frame = cv2.imread('image.png')
>>> frame.shape
(259, 787, 3)

Should I rebuild the Docker image by adding additional packages info to dockerfile?

[Rizal_Intel]

Hi Huang,

Could you check whether the file is copied properly and you are in the correct directory?

I tested using openvino/ubuntu18_runtime:2021.1 image and managed to read an mp4 file just fine (I do need to navigate to the copied file directory).

Regards,

Rizal

[cmdjzs]

Hi, I have the same question, my docker image is ubuntu18_runtime:2021.3,and input path for VideoCapture is absolute path or rtsp ,it cannot effect,whatever input its False for isOpened().Could you please give me some advice?thankyou so much~

[Iffa_Intel]

Greetings,

Intel will no longer monitor this thread since we have provided a solution. If you need any additional information from Intel, please submit a new question. 

Sincerely,

Iffa

[cmdjzs]

hi, have you solved it?