Why is my camera changing when i use VideoCaptureDevice

[peachsoda0111]

I want to get the camera content via VideoCaptureDevice and when I pass in my virtual camera ID, it always turns on the virtual camera on the first run and the computer camera on the second run.

Description

my code: func main() { webcam, _ := gocv.VideoCaptureDevice(1) // my virtual camera id is 1 defer webcam.Close() window := gocv.NewWindow("test") defer window.Close() img := gocv.NewMat() defer img.Close() timeUnix:=time.Now().Unix() + 3 for { if time.Now().Unix() > timeUnix { break } webcam.Read(&img) window.IMShow(img) window.WaitKey(1) } }

Before executing the programmy camera id

After executing the program. The camera id changes. Procedure

Your Environment

• Operating System and version: MacOS Ventura 13.0.1 macbookpro M1
• OpenCV version used: 4.5.3
• How did you install OpenCV? yes
• GoCV version used:0.31.0
• Go version: go1.17.2 darwin/arm64
• Did you run the env.sh or env.cmd script before trying to go run or go build? no