IltmmConvert::get_SourceStreamType

Summary

Gets the number of streams in the current program of the specified streamType.

Syntax

#include "ltmm.h"

Language Syntax
C HRESULT IltmmConvert_get_SourceStreamCount(pConvert, streamType, pVal)
C++ HRESULT get_SourceStreamCount(streamType, pVal)

Parameters

IltmmConvert *pConvert

Pointer to an IltmmConvert interface.

ltmmConvert_Stream streamType

The type of stream you're interested in. Currently, only two stream types are supported: Video (ltmmConvert_Stream_Video) and Audio (ltmmConvert_Stream_Audio).

long *pVal

Pointer to a variable to be updated with the number of streams of the specified streamType.

Returns

Value Meaning
S_OK The function was successful.
<> S_OK An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

See the Programs and Streams topic for more information on programs and streams.

This property returns the number of streams of a particular type in the current program. You can then select which streams you wish to play by calling IltmmConvert::put_SelectedSourceStream.

If you change the current program using IltmmConvert::put_CurrentSourceProgram, the number of streams might change. So you will need to call IltmmConvert::get_SourceStreamCount again.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

Language Example
C++ IltmmConvert::get_SourceStreamType
Help Version 23.0.2024.2.29
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2024 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS Multimedia C API Help
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.