Error 0xC00D6D77

Value: -1072861833 | 0xC00D6D77 | 3222105463

What does it mean ?

MF_E_TRANSFORM_ASYNC_LOCKED  
The caller does not appear to support this transform's asynchronous capabilities.
Value: 28023 | 0x6D77 | 0b0110110101110111

Where does it come from ?

FACILITY_MEDIASERVER  
Windows Media Server
Value: 13 | 0x00D | 0b00001101

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