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CSourceSeeking::SetRate (Windows CE 5.0)

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Sets a new playback rate.

HRESULT SetRate(doubledRate);

Parameters

  • dRate
    New rate, where 1.0 is the 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.

Requirements

DirectShow applications and DirectShow filters have different include file and link library requirements.

For more information, see Setting Up the Build Environment.

OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
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See Also

CSourceSeeking::GetRate

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