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NS_E_DATAPATH_NO_SINK
What the server is validating
This result (0xC00D1518) marks the constructed data path has no data writer capable of consuming its packets. Although the visible symptom may be interrupted playback, this HRESULT is raised during an administrative or distribution operation.
A server distribution path connects a data source, parser, media header and one or more data sinks; push publication adds an encoder-to-server control path, while client delivery uses a separate protocol and connection state. In the trace, trace input and output independently: source selection, parsing/header creation and sink selection are separate checkpoints.
A controlled correction
- Capture
0xC00D1518, this result, the exact API/administrative action and the first failure timestamp. - Preserve data source, parser, data path object, broadcast/unicast sink collections and enabled states.
- Perform one isolated experiment: enable or attach the correct data writer and rebuild the data path before starting delivery.
Code-specific failure anatomy
A representative occurrence is when the constructed data path has no data writer capable of consuming its packets. Capture data source, parser, data path object, broadcast/unicast sink collections and enabled states together with the object instance and the exact administrative or protocol request.
For a useful negative control, enable or attach the correct data writer and rebuild the data path before starting delivery.
The tempting but misleading response is changing source credentials; packets still have nowhere to go. That action does not test the distinction that matters here: source plug-in not found is an input-side selection failure.
Evidence that separates this code
| Controlled comparison | Use a known-good object of the same type and vary only the precondition described as “the constructed data path has no data writer capable of consuming its packets”. |
Changes that do not establish the cause
- changing source credentials; packets still have nowhere to go.
- Avoid changing the publishing point, protocol, content and plug-in set in one test; such a test cannot show which precondition cleared the code.
Comparison with adjacent states
Primary distinction: source plug-in not found is an input-side selection failure.
| Nearby result | Different condition |
|---|---|
NS_E_INVALID_PUSH_TEMPLATE | the named template cannot supply valid settings for a push publishing point. |
NS_E_PUSH_DUPLICATE_PUBLISHING_POINT_NAME | push setup attempts to create a publishing point whose valid name is already present. |
NS_E_INVALID_PUSH_PUBLISHING_POINT | the push target is absent, wrong type or otherwise unsuitable for encoder push. |
Technical references
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