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MF_E_NET_INVALID_PRESENTATION_DESCRIPTOR
MF_E_NET_INVALID_PRESENTATION_DESCRIPTOR means the network source could not provide a usable presentation descriptor for the media. The problem can be malformed stream metadata, an incompatible source implementation, or an invalid application assumption about available streams.
What to check
- Record the URL, protocol, and source resolver used to open the stream.
- Compare the result with a known-good asset from the same server.
- Check server-side manifest, playlist, or stream metadata rather than only the transport connection.
Microsoft: Networking in Media Foundation
Microsoft: Media Foundation client logging
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