IltmmMediaSampleDisp::get_SyncPoint

#include "ltmm.h"

C Syntax

HRESULT IltmmMediaSampleDisp__get_SyncPoint(pMediaSampleDisp, pVal)

C++ Syntax

HRESULT get_SyncPoint(pVal)

 

IltmmMediaSampleDisp *pMediaSampleDisp;

/* pointer to an interface */

VARIANT_BOOL *pVal;

/* pointer to a variable */

Determines if the beginning of this sample is a synchronization point.

Parameter

Description

pMediaSampleDisp

Pointer to an IltmmMediaSampleDisp interface.

pVal

Pointer to a variable to be updated with a value that indicates whether the beginning of the sample is a synchronization point. Possible values are:

 

Value

Meaning

 

VARIANT_TRUE

The beginning of the sample is a synchronization point.

 

VARIANT_FALSE

The beginning of the sample is not a synchronization point.

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

A stream can begin at any synchronization point. With some compression types, streaming can begin only at certain points in the stream; for example, on key frames.

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

Functions:

IltmmMediaSampleDisp::get_ActualDataLength, IltmmMediaSampleDisp::get_Buffer, IltmmMediaSampleDisp::get_BufferSize, IltmmMediaSampleDisp::get_Discontinuity, IltmmMediaSampleDisp::get_Preroll, IltmmMediaSampleDisp::GetData, IltmmMediaSampleDisp::GetMediaTime, IltmmMediaSampleDisp::GetMediaType, IltmmMediaSampleDisp::GetTime, IltmmMediaSampleDisp::put_ActualDataLength, IltmmMediaSampleDisp::put_Discontinuity, IltmmMediaSampleDisp::put_Preroll, IltmmMediaSampleDisp::put_SyncPoint, IltmmMediaSampleDisp::ResetMediaTime, IltmmMediaSampleDisp::ResetTime, IltmmMediaSampleDisp::SetData, IltmmMediaSampleDisp::SetMediaTime, IltmmMediaSampleDisp::SetMediaType, IltmmMediaSampleDisp::SetTime

Topics:

Multimedia Function Group

 

IltmmMediaSampleDisp interface

 

ltmmMediaSample object

Example

For a C example, refer to Copying ltmmMediaSample attributes and data for C.

For a C++ example, refer to Copying ltmmMediaSample attributes and data for C++.