IltmmCapture::put_MasterStream

#include "ltmm.h"

C Syntax

HRESULT IltmmCapture_put_MasterStream(pCapture, newVal)

C++ Syntax

HRESULT put_MasterStream(newVal)

IltmmCapture *pCapture;

pointer to an interface

long newVal;

value to set

Assigns the master stream that other streams must synchronize to after the file is written out.

Parameter

Description

pCapture

Pointer to an IltmmCapture interface.

newVal

Value that is one of the ltmmCapture_MasterStream constants.

Returns

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

Different streams in the capture scenario can capture at different rates if you are using separate audio and video capture cards. By specifying a master stream that all others must synchronize to, this method adjusts the frame rate or audio sampling rate to account for drifts in the rates.

To eliminate capture drifts that can occur between audio sampling rates and video frame rates, it is recommended that you use combined audio/video cards for capture of large files.

Required DLLs and Libraries

LTMM

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64

See Also

Elements:

IltmmCapture::get_MasterStream

Topics:

Multimedia Function Group

Example

For a C example, refer to Advanced Capture Application for C.

For a C++ example, refer to Advanced Capture Application for C++.

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