APO_FLAG enumeration (audioenginebaseapo.h)

The APO_FLAG enumeration defines constants that are used as flags by an audio processing object (APO).

This enumeration is used by the APO_REG_PROPERTIES structure to help describe the registration properties of an APO.

Syntax

typedef enum APO_FLAG {
  APO_FLAG_NONE,
  APO_FLAG_INPLACE,
  APO_FLAG_SAMPLESPERFRAME_MUST_MATCH,
  APO_FLAG_FRAMESPERSECOND_MUST_MATCH,
  APO_FLAG_BITSPERSAMPLE_MUST_MATCH,
  APO_FLAG_MIXER,
  APO_FLAG_DEFAULT
} ;

Constants

APO_FLAG_NONE Indicates that there are no flags enabled for this APO.
APO_FLAG_INPLACE Indicates that this APO can perform in-place processing. This allows the processor to use a common buffer for input and output.
APO_FLAG_SAMPLESPERFRAME_MUST_MATCH Indicates that the samples per frame for the input and output connections must match.
APO_FLAG_FRAMESPERSECOND_MUST_MATCH Indicates that the frames per second for the input and output connections must match.
APO_FLAG_BITSPERSAMPLE_MUST_MATCH Indicates that bits per sample AND bytes per sample container for the input and output connections must match.
APO_FLAG_MIXER
APO_FLAG_DEFAULT The value of this member is determined by the logical OR result of the three preceding members. In other words: APO_FLAG_DEFAULT = ( APO_FLAG_SAMPLESPERFRAME_MUST_MATCH	APO_FLAG_FRAMESPERSECOND_MUST_MATCH	APO_FLAG_BITSPERSAMPLE_MUST_MATCH ).

Requirements

Requirement	Value
Minimum supported client	Windows 8
Minimum supported server	Windows Server 2012
Header	audioenginebaseapo.h

See also

APO_REG_PROPERTIES