What does HRESULT 0xC00DABE7 (MF_E_CAPTURE_SOURCE_NO_VIDEO_STREAM_PRESENT) mean?

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The capture source has no video stream for this operation.

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MF_E_CAPTURE_SOURCE_NO_INDEPENDENT_PHOTO_STREAM_PRESENT	MF_E_CAPTURE_SOURCE_NO_AUDIO_STREAM_PRESENT

MF_E_CAPTURE_SOURCE_NO_VIDEO_STREAM_PRESENT

MF_E_CAPTURE_SOURCE_NO_VIDEO_STREAM_PRESENT means the active Capture Engine source does not have the required video stream. This can be a valid result of source selection: initialization supports audio-only mode, video-only mode, explicitly supplied source objects, or automatic device selection.

Verify what source the engine actually initialized

Record whether MF_CAPTURE_ENGINE_USE_AUDIO_DEVICE_ONLY was set.
Record the video source passed to Initialize, or note that automatic selection was requested with NULL.
Enumerate all source streams and their categories through IMFCaptureSource.

Do not infer the presence of a video stream from the fact that some capture source exists. A valid audio-only engine can initialize without a video device, and custom media sources can expose stream layouts unlike a webcam. The fix belongs in source selection or feature gating: disable preview/photo/video recording operations when no video category is present, or initialize with the intended video capture device.

Microsoft: Capture Engine initialization and source selection · Microsoft: IMFCaptureSource · Microsoft: Capture Engine attributes

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