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NS_E_NO_PAL_INVERSE_TELECINE
Where the Encoder produces this result
0xC00D1BA4 (NS_E_NO_PAL_INVERSE_TELECINE) identifies inverse telecine is selected for PAL-rate content where the feature is not applicable. For NS_E_NO_PAL_INVERSE_TELECINE, the important diagnostic boundary is the Encoder object that validates this state; a later “cannot start encoding” dialog can hide that more precise origin.
Inverse telecine, time compression, image preprocessing, content analysis and two-pass encoding require access to particular source types and often require rereading or temporarily storing the source in a session that returns NS_E_NO_PAL_INVERSE_TELECINE. Live, looping and device inputs impose additional restrictions at the no pal inverse telecine checkpoint.
What has already succeeded
The underlying audio or video source may be healthy while the requested preprocessing workflow is impossible for that source lifecycle in a session that returns NS_E_NO_PAL_INVERSE_TELECINE. In a representative no pal inverse telecine case, a global preprocessing preset enables NTSC inverse telecine on 25-fps material. The NS_E_NO_PAL_INVERSE_TELECINE observation should be tested at the producing object instead of being treated as a general codec or operating-system failure.
State snapshot to capture
| Field | What to preserve |
|---|---|
| Decisive values | detected frame rate, field cadence and inverse-telecine setting |
| Producing object | source type, live/file flag, Repeat flag, pass count, temporary-storage setting, preprocessing filters, analyzer frame count, input frame rate, content EDL path and selected codec mode |
| Session correlation | the same source-group generation, audience index, object identity and callback sequence that produced NS_E_NO_PAL_INVERSE_TELECINE |
| Lower-level evidence | the first COM, driver, file-system or codec HRESULT observed before the Encoder mapped the condition to NS_E_NO_PAL_INVERSE_TELECINE |
| Controlled comparison | a known-good session that changes only the setting named in the no pal inverse telecine boundary |
How to read the next observation
| Observation | How to interpret it |
|---|---|
| Observation that supports this result | The decisive evidence is detected frame rate, field cadence and inverse-telecine setting. It confirms inverse telecine is selected for PAL-rate content where the feature is not applicable in the same object generation. |
| Observation that points to an earlier failure | The recorded values satisfy the no pal inverse telecine 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 (inverse telecine is selected for PAL-rate content where the feature is not applicable), but a codec, archive or broadcast sink then fails in a subsequent stage. |
| Verification after correction | Apply this isolated change: disable inverse telecine for PAL content and use appropriate deinterlacing if needed. The original no pal inverse telecine call should then advance past the same checkpoint. |
The operational impact of NS_E_NO_PAL_INVERSE_TELECINE is limited to the preprocessing, analysis and multipass constraints transition that owns inverse telecine is selected for PAL-rate content where the feature is not applicable. For NS_E_NO_PAL_INVERSE_TELECINE, it does not, by itself, prove that every input is corrupt, every codec is missing or the complete Windows Media installation is unusable. In the representative case where a global preprocessing preset enables NTSC inverse telecine on 25-fps material, keep the first failing call and its object identity so a later wrapper cannot replace the no pal inverse telecine evidence.
A controlled diagnostic sequence
- Record
0xC00D1BA4,NS_E_NO_PAL_INVERSE_TELECINE, the Encoder version and the exact API call or property access that returned it. - Export the current
.wmeor.prxconfiguration, then capture detected frame rate, field cadence and inverse-telecine setting. - For
NS_E_NO_PAL_INVERSE_TELECINE, verify the preprocessing, analysis and multipass constraints precondition without changing the source, profile and output sink at the same time. - Run one controlled comparison in which only this condition changes: disable inverse telecine for PAL content and use appropriate deinterlacing if needed.
- After the change, recreate the affected Encoder object rather than assuming the existing graph discarded its earlier no pal inverse telecine state.
Nearby HRESULTs that mean something else
| Result | Why it is a different boundary |
|---|---|
NS_E_NO_MULTIPASS_FOR_LIVEDEVICE | two-pass encoding from a live device is enabled without temporary source storage |
NS_E_NO_FRAMES_SUBMITTED_TO_ANALYZER | content analyzer completes or is queried without receiving any video frames |
NS_E_SPEECHEDL_ON_NON_MIXEDMODE | voice-codec optimization EDL is attached while the codec is not in mixed voice/audio mode |
Corrective action at the right layer
For NS_E_NO_PAL_INVERSE_TELECINE, the focused correction is to disable inverse telecine for PAL content and use appropriate deinterlacing if needed. A retry is useful only after the recorded no pal inverse telecine precondition changes.
Do not enable several preprocessing features at once during diagnosis; validate the plain one-pass source first, then add one transformation with its required storage or analysis stage in a session that returns NS_E_NO_PAL_INVERSE_TELECINE.
Technical references for NS_E_NO_PAL_INVERSE_TELECINE
- Two-pass encoding.
- IWMEncContentAnalyzer.Property.
- Voice-codec editing decision lists.
- IWMEncSource.Repeat.
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