IMediaObject::GetStreamCount (Compact 2013)

  • 项目

3/26/2014

This method retrieves the number of input and output streams.

Syntax

HRESULT GetStreamCount(
  DWORD* pcInputStreams,
  DWORD* pcOutputStreams
);

Parameters

  • pcInputStreams
    [out] Pointer to a variable that receives the number of input streams. The pcInputStreamsparameter cannot be NULL.
  • pcOutputStreams
    [out] Pointer to a variable that receives the number of output streams. The pcOutputStreamsparameter cannot be NULL.

Return Value

Returns an HRESULT value. Possible values include the following.

Value

Description

S_OK

Retrieved the requested number of items

E_POINTER

NULL pointer argument

Remarks

The DMO might have zero input streams or zero output streams. The number of streams does not change, and a DMO cannot dynamically add or remove streams.

Requirements

Header

dmo.h

Library

Dmoguid.lib

See Also

Reference

IMediaObject