Error 0x80EE0022

Value: -2131886046 | 0x80EE0022 | 2163081250

What does it mean ?

RTC_E_MEDIA_VIDEO_DEVICE_NOT_AVAILABLE  
Video device is not available
Value: 34 | 0x0022 | 0b0000000000100010

Where does it come from ?

FACILITY_RTC_INTERFACE  
RTC - Real-time Communications
Value: 238 | 0x0EE | 0b11101110

Other Errors for FACILITY_RTC_INTERFACE