Two ore more instances of MediaCapture

Question

I'm creating an app that will show preview of a few cameras. If I try and use more than once instance of MediaCapture, the second camera will not show. If I comment out or remove the first instance of MediaCapture, the second camera displays just fine. How can I display more than one camera preview at a time? 

Answer 1

After a little more playing around, I was able to get a second camera to work after adding a 3 second delay task.delay(3000). Now when adding the third camera, the other two cameras freeze. The Second and third camera are on the same USB hub. If I try and add those two cameras first, it freezes on loading the second camera. 

Answer 2

Hi Breaker1253,

Take a look at the documentation, you cannot initialize two camera at same time as you can also see 3 seconds delay make the app works fine.

In C# or C++ apps, the first use of the MediaCapture object  to call InitializeAsync should be on the STA thread. Calls from an MTA thread may result in undefined behavior.

--James

---

<THE CONTENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS OR IMPLIED>
Thanks
MSDN Community Support

Please remember to "Mark as Answer" the responses that resolved your issue. It is a common way to recognize those who have helped you, and makes it easier for other visitors to find the resolution later.

Answer 3

Solved:

Apparently the problem was with the hub. After I replaced the hub with one that presents more power, the problem is solved. A simple delay allows me to add however many cameras I want.