REFERENCE_TIME

The REFERENCE_TIME data type defines the units for reference times in DirectShow. Each unit of reference time is 100 nanoseconds.

typedef LONGLONG REFERENCE_TIME;

Remarks

The REFERENCE_TIME data type is a 64-bit integer.

Reference times are usually measured from one of the following baselines:

  • An absolute clock time. In this case, the baseline will depend on the implementation of the clock. For more information, see Reference Clocks.
  • Relative to the start of playback.

For more information about reference times, see Time and Clocks in DirectShow.

Requirements

Header
Strmif.h (include Dshow.h)

See also

DirectShow Data Types