IltmmMediaTypeDisp::get_TemporalCompression

#include "ltmm.h"

C Syntax

HRESULT IltmmMediaTypeDisp_get_TemporalCompression(pMediaTypeDisp, pVal)

C++ Syntax

HRESULT get_TemporalCompression(pVal)

 

IltmmMediaTypeDisp *pMediaTypeDisp;

/* pointer to an interface */

VARIANT_BOOL *pVal;

/* pointer to a variable */

Determines whether samples are compressed using temporal (interframe) compression.

Parameter

Description

pMediaTypeDisp

Pointer to an IltmmMediaTypeDisp interface.

pVal

Pointer to a variable that indicates whether the samples are compressed using temporal compression. Possible values are:

 

Value

Meaning

 

VARIANT_TRUE

The samples are compressed using temporal compression.

 

VARIANT_FALSE

The samples are not compressed using temporal compression.

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 value of VARIANT_TRUE indicates that not all frames are key frames.

Platforms

Win32, x64

See Also

Elements:

IltmmMediaTypeDisp::get_FixedSizeSamples, IltmmMediaTypeDisp::get_Format, IltmmMediaTypeDisp::get_FormatSize, IltmmMediaTypeDisp::get_FormatType, IltmmMediaTypeDisp::get_SampleSize, IltmmMediaTypeDisp::get_Subtype, IltmmMediaTypeDisp::get_Type, IltmmMediaTypeDisp::GetFormatData, IltmmMediaTypeDisp::put_FixedSizeSamples, IltmmMediaTypeDisp::put_FormatSize, IltmmMediaTypeDisp::put_FormatType, IltmmMediaTypeDisp::put_SampleSize, IltmmMediaTypeDisp::put_Subtype, IltmmMediaTypeDisp::put_TemporalCompression, IltmmMediaTypeDisp::put_Type, IltmmMediaTypeDisp::SetFormatData

Topics:

Multimedia Function Group

 

IltmmMediaTypeDisp interface

 

ltmmMediaType object

Example

For a C example, refer to Copying ltmmMediaType Attributes and Data for C.

For a C++ example, refer to Copying ltmmMediaType Attributes and Data for C++.