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NS_E_NO_PROFILE_NAME
Diagnostic meaning beyond the standard text
For NS_E_NO_PROFILE_NAME (0xC00D1BB3), the actionable event is saving or validating a custom profile without a profile name. Keep the result producing boundary attached to the original Encoder callback or COM call.
Why the session can reach this point
A Windows Media Encoder profile declares content types and one or more audiences in a session that returns this result. Each audience maps source indexes to audio, video, script or file streams and must remain structurally consistent with the other audiences in a multiple-bit-rate profile.
Individual fields may be syntactically valid while the complete profile is inconsistent across audiences or does not match the source group in a session that returns this result. One concrete way to reach the condition is that automation sets only the description and leaves ProfileName blank. The result test should therefore preserve the object generation and numeric settings, not just a screenshot of the final dialog.
Trace fields with diagnostic value
| Field | What to preserve |
|---|---|
| Decisive values | ProfileName value, whitespace handling and save target |
| Producing object | profile name and content type, audience count and total bitrate, source indexes, stream types, language identifiers, selected audiences and result of IWMEncProfile2.Validate |
| Session correlation | the same source-group generation, audience index, object identity and callback sequence that produced this result |
| Lower-level evidence | the first COM, driver, file-system or codec HRESULT observed before the Encoder mapped the condition to this result |
| Controlled comparison | a known-good session that changes only the setting named in the no profile name boundary |
Decision matrix
| Observation | How to interpret it |
|---|---|
| Observation that supports it | The decisive evidence is ProfileName value, whitespace handling and save target. It confirms saving or validating a custom profile without a profile name in the same object generation. |
| Observation that points to an earlier failure | The recorded values satisfy the no profile name rule, but a source, driver, COM activation or file operation returns a different HRESULT first. |
| Observation that points to a later failure | The Encoder passes this boundary (saving or validating a custom profile without a profile name), but a codec, archive or broadcast sink then fails in a subsequent stage. |
| Verification after correction | Apply this isolated change: assign a stable nonempty profile name before validation and persistence. The original no profile name call should then advance past the same checkpoint. |
The operational impact of it is limited to the profile, audience and stream topology transition that owns saving or validating a custom profile without a profile name. In the representative case where automation sets only the description and leaves ProfileName blank, keep the first failing call and its object identity so a later wrapper cannot replace the no profile name evidence.
Decision path
- Record
0xC00D1BB3, it, the Encoder version and the exact API call or property access that returned it. - Export the current
.wmeor.prxconfiguration, then capture ProfileName value, whitespace handling and save target. - verify the profile, audience and stream topology precondition without changing the source, profile and output sink at the same time.
- Run one controlled comparison in which only this condition changes: assign a stable nonempty profile name before validation and persistence.
- After the change, recreate the affected Encoder object rather than assuming the existing graph discarded its earlier no profile name state.
Codes with similar symptoms but different owners
| Result | Why it is a different boundary |
|---|---|
NS_E_NO_AUDIENCES | profile validation finds no bitrate audience at all |
NS_E_MULTIPLE_VBR_AUDIENCES | multiple-bit-rate audiences are combined with a VBR profile mode not supported by that topology |
NS_E_NO_MEDIA_IN_AUDIENCE | an audience contains neither audio nor video media inputs |
Safe recovery
Resolve the producing condition by ensuring that you assign a stable nonempty profile name before validation and persistence. Then rebuild only the portion of the Encoder graph affected by it and verify the original call.
Do not repair a profile by deleting arbitrary audiences; export the.prx first and compare the same source index across every audience in a session that returns it.
Source material
- Adding an audience to an encoder profile.
- IWMEncAudienceObj.TotalBitrate.
- Retrieving the profile assigned to a source group.
- Detecting profile compatibility.
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