PERFINFO_DSHOW_AVREND structure

The PERFINFO_DSHOW_AVREND structure contains data for a trace event of type GUID_VIDEOREND.

The VMR logs this event immediately before rendering a frame.

Syntax


typedef struct PERFINFO_DSHOW_AVREND {
  ULONGLONG cycleCounter;
  ULONGLONG dshowClock;
  ULONGLONG sampleTime;
} PERFINFO_DSHOW_AVREND, *PPERFINFO_DSHOW_AVREND;

Members

cycleCounter

Latest clock cycle count (RDTSC instruction).

dshowClock

Current reference time, as returned by the IReferenceClock::GetTime method.

sampleTime

Start time of the sample.

Remarks

To enable this event, you must set the DXMPERF_VIDEOREND flag in the EnableFlag parameter when you call EnableTrace. This flag is defined in the header file Dxmperf.h, which is included in the DirectShow base classes.

To log this event from a DirectShow filter, use the PERFLOG_VIDEOREND macro, which is defined in Dxmperf.h.

Requirements

Header

Perfstruct.h

See also

DirectShow Structures
Event Tracing in DirectShow
Trace Event GUIDs

 

 

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