Error 0x80040401

Value: -2147220479 | 0x80040401 | 2147746817

What does it mean ?

DS_E_INVALIDDATASOURCE  
The requested content index name is not valid. Use a valid content index name.
Value: 1025 | 0x0401 | 0b0000010000000001
MS_E_SAMPLEALLOC  
An IMediaStream object could not be removed from an IMultiMediaStream object because it still contains at least one allocated sample.
Value: 1025 | 0x0401 | 0b0000010000000001

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

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