// d3dumddi.h

typedef enum _DXVAHDDDI_DEVICE_USAGE {
  DXVAHDDDI_DEVICE_USAGE_PLAYBACK_NORMAL,
  DXVAHDDDI_DEVICE_USAGE_OPTIMAL_SPEED,
  DXVAHDDDI_DEVICE_USAGE_OPTIMAL_QUALITY
} DXVAHDDDI_DEVICE_USAGE;
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Windows Driver Kit DDI reference (ne-d3dumddi-_dxvahdddi_device_usage)

_DXVAHDDDI_DEVICE_USAGE enumeration

Description

The DXVAHDDDI_DEVICE_USAGE enumeration contains values that identify how the decode device plays video.

Constants

`DXVAHDDDI_DEVICE_USAGE_PLAYBACK_NORMAL`

A value that specifies that the device plays video at normal speed.

`DXVAHDDDI_DEVICE_USAGE_OPTIMAL_SPEED`

A value that specifies that the device plays video at optimal speed.

`DXVAHDDDI_DEVICE_USAGE_OPTIMAL_QUALITY`

A value that specifies that the device plays video at optimal quality.

Remarks

A DXVAHDDDI_DEVICE_USAGE-typed value is specified in the Usage member of a DXVAHDDDI_DEVICE_DESC structure to help describe a decode device.

DXVAHDDDI_DEVICE_USAGE - NtDoc