[CUDA] opencv cannot decode rtsp video stream

[hexianbin1994]

Expected behaviour

opencv-cuda decode rstp video stream success

Actual behaviour

opencv-cuda can decode mp4 video file, but cannot decode rtsp video stream, with the fault is 【Segmentation fault (core dumped)】

Steps to reproduce

I create docker container and compile opencv-cuda:

docker run -it --network host --gpus all -e NVIDIA_DRIVER_CAPABILITIES=compute,utility,video  nvidia/cuda:12.0.0-cudnn8-devel-ubuntu20.04 bash
## compile ffmpeg
## compile opencv-python
git clone https://github.com/opencv/opencv.git
cd opencv
git checkout 4.8.0
git clone https://github.com/opencv/opencv_contrib.git
cd opencv_contrib
git checkout 4.8.0

compile result is :

NVIDIA CUDA is YES and contain NVCUVID

main code

1 - decode mp4 video file

import cv2

s = "test2.mp4"
cap = cv2.cudacodec.createVideoReader(s)
frame_id = 0
while 1:
    _, img_gpu = cap.nextFrame()
    if frame_id == 100:
        img_cpu = img_gpu.download()
        print(img_cpu.shape)
        break

    frame_id += 1

the result is

2 - decode rtsp video stream

import cv2

s = "rtsp://128.8.84.224:8554/rtsp/test"
cap = cv2.cudacodec.VideoReader(s)
frame_id = 0
while 1:
    _, img_gpu = cap.nextFrame()
    if frame_id == 100:
        img_cpu = img_gpu.download()
        print(img_cpu.shape)
        break

    frame_id += 1

the result is error is in 【_, img_gpu = cap.nextFrame()】

[hexianbin1994]

cv2.getBuildInformation() is