!ssize.empty() in function 'resize'

[hoggle64]

• face_recognition version: 1.2.3
• Python version: 3.6.8
• Operating System: Linux Mint 19.2 Tina / Ubuntu 18.04
• libcudnn7/now 7.6.3.30-1+cuda10.1 amd64
• Cuda 10.1

Hardware

• Nvidia RTX2080

Description

I am simply exectuing your example facerec_from_webcam_faster.py.
I am using a video stream from a Mobotix camera with this URL:
video_capture = cv2.VideoCapture('http://admin:xxxxxxxx@doorstation.mydomain.lan/control/faststream.jpg?stream=full')

When I run the code a windows pops up after 1 second. The windows shows the current livestream but then immediately closes again. On the command line I can see the following errors

this(repeated many times):
[mpjpeg @ 0x860b000] Expected boundary '--' not found, instead found a line of 34 bytes [mpjpeg @ 0x860b000] Expected boundary '--' not found, instead found a line of 55 bytes [mpjpeg @ 0x860b000] Expected boundary '--' not found, instead found a line of 127 bytes [mpjpeg @ 0x860b000] Expected boundary '--' not found, instead found a line of 127 bytes [mpjpeg @ 0x860b000] Expected boundary '--' not found, instead found a line of 3 bytes

and finally this:

Traceback (most recent call last): File "./test.py", line 50, in <module> small_frame = cv2.resize(frame, (0, 0), fx=0.25, fy=0.25) cv2.error: OpenCV(4.1.1) /io/opencv/modules/imgproc/src/resize.cpp:3720: error: (-215:Assertion failed) !ssize.empty() in function 'resize'

I've tried rebooting the computer without success.

I've no clue what this means and how to fix it.

Thanks in advance.

[hoggle64]

I've also tried the other webcam example. Here it works for some time(about 20-30 sec.) and then breaks again with this error message:

[mpjpeg @ 0x8fdb880] Expected boundary '--' not found, instead found a line of 3 bytes [mpjpeg @ 0x8fdb880] Expected boundary '--' not found, instead found a line of 6 bytes [mpjpeg @ 0x8fdb880] Expected boundary '--' not found, instead found a line of 5 bytes [mpjpeg @ 0x8fdb880] Expected boundary '--' not found, instead found a line of 5 bytes [mpjpeg @ 0x8fdb880] Expected boundary '--' not found, instead found a line of 47 bytes [mpjpeg @ 0x8fdb880] Expected boundary '--' not found, instead found a line of 19 bytes [mpjpeg @ 0x8fdb880] Expected boundary '--' not found, instead found a line of 22 bytes [mpjpeg @ 0x8fdb880] Expected boundary '--' not found, instead found a line of 8 bytes [mpjpeg @ 0x8fdb880] Expected boundary '--' not found, instead found a line of 8 bytes Traceback (most recent call last): File "./test2.py", line 41, in <module> rgb_frame = frame[:, :, ::-1] TypeError: 'NoneType' object is not subscriptable