CSourceSeeking::ChangeRate
A version of this page is also available for
4/8/2010
Override this member function to handle notification of a change of sample rate.
Syntax
virtual HRESULT ChangeRate( ) PURE;
Parameters
None.
Return Value
Returns an HRESULT value that depends on the implementation. HRESULT can be one of the following standard constants, or other values not listed.
| Value | Description |
|---|---|
E_FAIL |
Failure. |
E_POINTER |
Null pointer argument. |
E_INVALIDARG |
Invalid argument. |
E_NOTIMPL |
Method is not supported. |
S_OK or NOERROR |
Success. |
Remarks
This member function is called when a change to the rate has been made by a call to the CSourceSeeking::SetRate function.
Override this and change the rate of data sent.
Typically, you do this by calling CBaseInputPin::BeginFlush and CBaseInputPin::EndFlush, and then send samples marked with new time stamps (for example, with an implementation NewSegment method).
Requirements
| Windows Embedded CE | Windows CE 2.12 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |
| Note | Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later |