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NS_E_WMG_CANNOTQUEUE
NS_E_WMG_CANNOTQUEUE: what the result means
NS_E_WMG_CANNOTQUEUE (0xC00D104C) means the next item cannot be added to the seamless-playback queue with the graph in its current state.
What to capture
Capture the graph state, the item already queued, the incoming item, stream count, negotiated media types and the renderer/sink selected for each output.
Focused verification
Repeat with one known-compatible item that has the same output topology. If that queues successfully, compare the first pin, media type or renderer that differs before changing the rest of the graph.
Technical references
- The DirectShow filter graph
- DirectShow media types
- Negotiating media types
- WM ASF Reader filter
- Microsoft HRESULT registry
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