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NS_E_INVALID_VIDEO_PEAKRATE_2
How to interpret the code in a real encoding session
0xC00D1BC2 is named NS_E_INVALID_VIDEO_PEAKRATE_2. Its practical scope is video peak bitrate is not greater than average bitrate for the selected constrained mode, which belongs to video stream and audience settings rather than to every part of Windows Media playback or Windows itself.
Mechanism and point of failure
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 at the invalid video peakrate 2 checkpoint.
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. A typical reproduction is: the profile editor rounds both rates to the same value. This makes the first result from the Encoder more valuable than a later generic message.
Reproduction matrix
| Field | What to preserve |
|---|---|
| Decisive values | average and peak video bitrate in the failing audience |
| 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 2 boundary |
Evidence matrix
| Observation | How to interpret it |
|---|---|
| Observation that supports it | The decisive evidence is average and peak video bitrate in the failing audience. It confirms video peak bitrate is not greater than average bitrate for the selected constrained mode in the same object generation. |
| Observation that points to an earlier failure | The recorded values satisfy the invalid video peakrate 2 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 is not greater than average bitrate for the selected constrained mode), but a codec, archive or broadcast sink then fails in a subsequent stage. |
| Verification after correction | Apply this isolated change: set peak above average within codec limits. The original invalid video peakrate 2 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 is not greater than average bitrate for the selected constrained mode. In the representative case where the profile editor rounds both rates to the same value, keep the first failing call and its object identity so a later wrapper cannot replace the invalid video peakrate 2 evidence.
Minimal experiment
- Record
0xC00D1BC2, it, the Encoder version and the exact API call or property access that returned it. - Export the current
.wmeor.prxconfiguration, then capture average and peak video bitrate in the failing audience. - 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: set peak above average within codec limits.
- After the change, recreate the affected Encoder object rather than assuming the existing graph discarded its earlier invalid video peakrate 2 state.
Do not collapse these results together
| Result | Why it is a different boundary |
|---|---|
NS_E_INVALID_VIDEO_PEAKRATE | video peak bitrate lies outside the codec or VBR mode's accepted range |
NS_E_INVALID_VIDEO_WIDTH | output video width fails codec or profile range validation |
NS_E_VIDEO_BITRATE_STEPDOWN | video bitrate decreases when total audience bitrate increases |
What to change—and what to leave alone
Change the smallest responsible precondition: set peak above average within codec limits. While retesting it, keep all unrelated source, audience and output values fixed until the same call is repeated.
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.
Authoritative documentation
- 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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