// ksmedia.h

typedef struct {
  KSPROPERTY Property;
  ULONG      StreamIndex;
  LONG       DefaultKeyFrameRate;
  LONG       DefaultPFrameRate;
  LONG       DefaultQuality;
  LONG       NumberOfQualitySettings;
  LONG       Capabilities;
} KSPROPERTY_VIDEOCOMPRESSION_GETINFO_S, *PKSPROPERTY_VIDEOCOMPRESSION_GETINFO_S;
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Windows Driver Kit DDI reference (ns-ksmedia-ksproperty_videocompression_getinfo_s)

KSPROPERTY_VIDEOCOMPRESSION_GETINFO_S structure

Description

The KSPROPERTY_VIDEOCOMPRESSION_GETINFO_S structure describes information about the video compression capabilities supported by a device.

Members

`Property`

Specifies an initialized KSPROPERTY structure that describes the property set, property ID, and request type.

`StreamIndex`

Specifies the zero-based index of the stream being queried.

`DefaultKeyFrameRate`

Indicates the estimated number of frames per key frame.

`DefaultPFrameRate`

Indicates the predicted number of frames per key frame.

`DefaultQuality`

Specifies the default quality value. This value should be in the range from 0 through 10000.

`NumberOfQualitySettings`

Indicates the number of discrete compression quality settings the device supports.

`Capabilities`

Specifies the compression capabilities of the device. This member can be one or more (logically ORed) of the values from the KS_CompressionCaps enumeration.

KSPROPERTY_VIDEOCOMPRESSION_GETINFO_S - NtDoc