CSourceSeeking::SetRate

Sets a new playback rate.

HRESULT SetRate(
double dRate );

Parameters

  • dRate
    New rate, where 1.0 is the normal normal playback speed. Specifying 2.0 causes playback at twice the normal rate: a video created for 10 frames per second (fps) will be played back at 20 fps, if resources permit. Audio streams played back at above-normal speed increase the pitch rather than drop samples. A rate of 0.5 specifies half speed.

Return Values

Returns the HRESULT value returned by the call to the CSourceSeeking::ChangeRate function.

Remarks

You must implement ChangeRate to use this method. The m_dRateSeeking data member is set to the new rate. Setting the rate to zero causes an error.

See Also

CSourceSeeking::GetRate

 Last updated on Tuesday, July 13, 2004

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