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VFW_E_VMR_NO_DEINTERLACE_HW
Meaning
Windows documents VFW_E_VMR_NO_DEINTERLACE_HW as “The VMR could not find any de-interlacing hardware on the current display device”. Here, the VMR cannot find hardware support for the requested deinterlacing operation on the current display device.
Relevant contract
Start with the renderer, graphics driver, display connection and negotiated surfaces.
Conditions that can produce it
- Cause 1: the adapter exposes no supported deinterlace mode.
- Cause 2: the input format or resolution is outside hardware capability.
- Cause 3: remote or virtual display paths hide acceleration features.
Evidence worth preserving
Record lengths and hashes instead of raw content when the incident includes display identifiers, protected-content state, driver details and media paths.
- Evidence 1: adapter and monitor identity.
- Evidence 2: input interlace flags, dimensions and frame rate.
- Evidence 3: enumerated deinterlace modes and driver version.
Correction strategy
- Action 1: choose a supported mode or software deinterlacing path.
- Action 2: disable the feature when capability enumeration is empty.
- Action 3: requery capabilities after display-device changes.
Retry and recovery
Retry rule: Retry after selecting another adapter, format or deinterlacing implementation.
Example incident
A player requests adaptive hardware deinterlacing inside a remote session where no modes enumerate; falling back to software avoids it.
How it differs from nearby results
VFW_E_DDRAW_CAPS_NOT_SUITABLE is a broad legacy graphics-capability mismatch, while it specifically reports absent VMR deinterlace acceleration.
Official Microsoft references
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