使用Opencv C ++从SMI Grabber设备捕获视频

Question

I am trying to capture a video from an SMI grabber device using opencv c++. The line VideoCapture cap(0) obtains video from web cam. How do I get the feed from the device that I have connected.

Answer 1

From openCV docs

VideoCapture

public VideoCapture(int device)

Parameters: device - id of the opened video capturing device (ie a camera index). If there is a single camera connected, just pass 0.

As per this answer, it's not possible at the moment to enumerate devices via OpenCV however you could try passing 1 and see if the SMI device is found there.