IWMSyncReader::GetMaxStreamSampleSize method

Artículo
12/05/2018
Tiempo de lectura: 2 minutos

The GetMaxStreamSampleSize method retrieves the maximum sample size for a specified stream in the file that is open in the synchronous reader.

Syntax

HRESULT GetMaxStreamSampleSize(
  WORD  wStream,
  DWORD *pcbMax
);

Parameters

wStream

WORD containing the stream number for which you want to retrieve the maximum sample size.

pcbMax

Pointer to a DWORD value that receives the maximum sample size, in bytes, for the stream specified in wStream.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code	Description
S_OK	The method succeeded.
E_INVALIDARG	pcbMax is NULL. OR wStream specifies an invalid stream number.
ASF_E_INVALIDSTATE	No file is open in the synchronous reader.

Return code

Description

S_OK

The method succeeded.

E_INVALIDARG

pcbMax is NULL.

wStream specifies an invalid stream number.

ASF_E_INVALIDSTATE

No file is open in the synchronous reader.

Remarks

This method retrieves the maximum sample size for an individual stream. The stream may be one of several in an output. If you are using output numbers, you should use IWMSyncReader::GetMaxOutputSampleSize to retrieve the maximum sample size for the entire output.

Requirements


Minimum supported client	Windows 2000 Professional [desktop apps only],Windows Media Format 9 Series SDK, or later versions of the SDK
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	wmsdkidl.h (include Wmsdk.h)
Library	Wmvcore.lib; WMStubDRM.lib (if you use DRM)