IAMExtTransport::SetBump method (strmif.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The SetBump method temporarily changes the playback, for synchronization of multiple external devices.
This method is not implemented.
Syntax
HRESULT SetBump(
[in] long Speed,
[in] long Duration
);
Parameters
[in] Speed
Specifies the temporary speed (a multiple of normal speed) as a long integer.
[in] Duration
Specifies the duration of a bump as a long integer. The duration is given in the current time format; see IAMExtTransport::SetTransportBasicParameters for more information.
Return value
Returns an HRESULT value that depends on the implementation of the interface.
Remarks
This method causes a temporary speed variation of the transport. The transport operates at the new speed until the specified duration elapses. Then it returns to its previous speed.
DV Implementation
MSDV does not support this method. It returns E_NOTIMPL.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |