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CBaseMediaFilter::StreamTime

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Microsoft DirectShow 9.0

CBaseMediaFilter::StreamTime

The StreamTime method retrieves the current stream time.

Syntax

  virtual HRESULT StreamTime(
    CRefTime& rtStream
);

Parameters

rtStream

Reference to a CRefTime object that receives the current stream time.

Return Value

Returns an HRESULT value. Possible values include those listed in the following table.

Value Description
S_OK Success.
VFW_E_NO_CLOCK No reference clock is available.

Remarks

Stream time is defined as the current reference time (as given by the reference clock) minus the start time (specified by CBaseMediaFilter::m_tStart). A media sample's time stamp specifies the stream time when it should be rendered. If a sample with a time stamp less than the current stream time has not yet been rendered, it is late.

Requirements

**  Header:** Declared in Amfilter.h; include Streams.h.

**  Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).

See Also