Error in recording video using two logitech webcam simultaneously

2015 1 15
1 个回答
更新时间：2018 4 2
20 次查看（30 天）

1 个投票

I was able to record video using two webcam simultaneously. But now using same code I am getting error. It is saying that my device is in use but actually it is not. The error is:
Error using videoinput (line 391)
winvideo: The device associated with device ID 2 is already in use. A new videoinput object cannot be created for this device while it is in use.
Error in recording_video1 (line 5)
vid2 = videoinput('winvideo',2, 'YUY2_320x240');

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回答（1 个）

Image Analyst
Image Analyst 2015-1-17

0 个投票

Try
vid2 = videoinput('winvideo',1, 'YUY2_320x240');
or
vid2 = videoinput('winvideo',3, 'YUY2_320x240');
or whatever number your second camera is.

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rohan gupta
rohan gupta 2015-1-17
编辑：rohan gupta 2015-1-21
I am using two logitech C170 webcam. For the first webcam it is
vid1 = videoinput('winvideo',1, 'YUY2_320x240');
and for the second camera it is
vid2 = videoinput('winvideo',2, 'YUY2_320x240');
when I use these webcam individually, each of them run properly. But when I try to use them simultaneously which is my requirement, I get the error as mentioned
Error using videoinput (line 391)
winvideo: The device associated with device ID 2 is already in use. A new videoinput object cannot be created for this device while it is in use.
Error in recording_video1 (line 5)
vid2 = videoinput('winvideo',2, 'YUY2_320x240');
*Can you help me with this
soyoung shin
soyoung shin 2017-11-6
same situation here. Did you fix the problem? I also connect two logitech cameras on my labtop and got same error..

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