IMediaSeeking::GetAvailable method

The GetAvailable method retrieves the range of times in which seeking is efficient.

Syntax


HRESULT GetAvailable(
  [out] LONGLONG *pEarliest,
  [out] LONGLONG *pLatest
);

Parameters

pEarliest [out]

Pointer to a variable that receives the earliest time for efficient seeking.

pLatest [out]

Pointer to a variable that receives the latest time for efficient seeking.

Return value

Returns an HRESULT value. Possible values include the following.

Return codeDescription
S_OK

Success.

E_NOTIMPL

Method is not supported.

E_POINTER

NULL pointer argument.

 

Remarks

This method is intended primarily for seeking in media streams that might have excessive latency, such as streams being sent over a network. The returned values indicate cached data that has already arrived, which can be easily seeked. It is assumed that seeking to values beyond these returned parameters will cause a delay while the application waits for the data to arrive.

All time values are expressed in the current time format. The default time format is REFERENCE_TIME units (100 nanoseconds). To change time formats, use the IMediaSeeking::SetTimeFormat method.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Strmif.h (include Dshow.h)

Library

Strmiids.lib

See also

Error and Success Codes
IMediaSeeking Interface

 

 

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