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NS_E_INVALID_VIDEO_PEAKRATE
The failing boundary in the Encoder object model
The useful reading of NS_E_INVALID_VIDEO_PEAKRATE (0xC00D1BC1) is not merely the standard message shown above. It locates video peak bitrate lies outside the codec or VBR mode's accepted range inside video stream and audience settings.
The video profile selects a codec and rate-control mode, then supplies bitrate, peak rate, frame rate, frame size, key-frame spacing, quality, buffer and optional interlace or pixel-aspect settings in a session that returns this result. The codec validates both values and combinations.
Evidence that separates this code from a wrapper error
A source preview does not prove that the output profile is accepted; output dimensions and rate-control settings are validated by the selected encoder codec in a session that returns this result. For example, a peak value from one frame size is reused after switching codecs. Preserve the result distinction before a UI layer converts the result into a broad start, capture or profile failure.
| Field | What to preserve |
|---|---|
| Decisive values | codec, average bitrate, VBR mode and requested peak rate |
| Producing object | audience index, codec FOURCC/index, VBR mode, width and height, frame rate, average and peak bitrate, buffer values, key-frame interval, quality values, interlace mode and pixel aspect ratio |
| 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 invalid video peakrate boundary |
Interpret the next measurement
| Observation | How to interpret it |
|---|---|
| Observation that supports it | The decisive evidence is codec, average bitrate, VBR mode and requested peak rate. It confirms video peak bitrate lies outside the codec or VBR mode's accepted range in the same object generation. |
| Observation that points to an earlier failure | The recorded values satisfy the invalid video peakrate 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 (video peak bitrate lies outside the codec or VBR mode's accepted range), but a codec, archive or broadcast sink then fails in a subsequent stage. |
| Verification after correction | Apply this isolated change: choose a supported peak rate for the selected constrained mode. The original invalid video peakrate call should then advance past the same checkpoint. |
The operational impact of it is limited to the video stream and audience settings transition that owns video peak bitrate lies outside the codec or VBR mode's accepted range. In the representative case where a peak value from one frame size is reused after switching codecs, keep the first failing call and its object identity so a later wrapper cannot replace the invalid video peakrate evidence.
Test the condition without rewriting the session
- Record
0xC00D1BC1, it, the Encoder version and the exact API call or property access that returned it. - Export the current
.wmeor.prxconfiguration, then capture codec, average bitrate, VBR mode and requested peak rate. - verify the video stream and audience settings precondition without changing the source, profile and output sink at the same time.
- Run one controlled comparison in which only this condition changes: choose a supported peak rate for the selected constrained mode.
- After the change, recreate the affected Encoder object rather than assuming the existing graph discarded its earlier invalid video peakrate state.
Interpret neighboring results carefully
| Result | Why it is a different boundary |
|---|---|
NS_E_VIDEO_BITRATE_STEPDOWN | video bitrate decreases when total audience bitrate increases |
NS_E_INVALID_VIDEO_PEAKRATE_2 | video peak bitrate is not greater than average bitrate for the selected constrained mode |
NS_E_INVALID_VIDEO_BITRATE | video average bitrate is rejected by the selected codec or audience configuration |
Resolution and verification
The direct repair for this occurrence is to choose a supported peak rate for the selected constrained mode. Recreate the affected source group, profile or output object, repeat the same operation, and confirm that the first failing HRESULT no longer comes from the invalid video peakrate checkpoint.
Do not rely on the UI label alone; record the numeric profile fields and codec identity before changing presets in a session that returns it.
References for the boundary
- Selecting a video codec for an audience.
- IWMEncProfile2.VBRMode.
- IWMEncVideoSource2.Width and live capture sizing.
- Non-square pixel mode in an encoder profile.
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