// ksmedia.h

typedef struct {
  KSDS3D_HRTF_FILTER_METHOD  FilterMethod;
  KSDS3D_HRTF_COEFF_FORMAT   CoeffFormat;
  KSDS3D_HRTF_FILTER_VERSION Version;
  ULONG                      Reserved;
} KSDS3D_HRTF_FILTER_FORMAT_MSG, *PKSDS3D_HRTF_FILTER_FORMAT_MSG;
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Windows Driver Kit DDI reference (ns-ksmedia-ksds3d_hrtf_filter_format_msg)

KSDS3D_HRTF_FILTER_FORMAT_MSG structure

Description

The KSDS3D_HRTF_FILTER_FORMAT_MSG structure specifies the filter format to use for a head-relative transfer function (HRTF).

Members

`FilterMethod`

Specifies the filter method to use. Set this parameter to one of the following KSDS3D_HRTF_FILTER_METHOD enumeration values:

DIRECT_FORM
CASCADE_FORM

For more information, see the description of the MaxFilterSize member of KSDS3D_HRTF_INIT_MSG.

`CoeffFormat`

Specifies the coefficient format to use. Set this parameter to one of the following KSDS3D_HRTF_COEFF_FORMAT enumeration values:

FLOAT_COEFF specifies floating-point coefficients.
SHORT_COEFF specifies 16-bit integer coefficients.

`Version`

Specifies the filter version. Set this parameter to the KSDS3D_HRTF_FILTER_VERSION enumeration value DS3D_HRTF_VERSION_1.

`Reserved`

Reserved. Set to zero.

Remarks

This structure is used by the KSPROPERTY_HRTF3D_FILTER_FORMAT property.

For more information, see KSPROPSETID_Hrtf3d.

KSDS3D_HRTF_FILTER_FORMAT_MSG - NtDoc