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IltmmMediaInfo::get_AudioSamplesPerSec

#include "ltmm.h"

C Syntax	HRESULT IltmmMediaInfo_get_AudioSamplesPerSec(pMediaInfo, SamplesPerSec)
C++ Syntax	HRESULT get_AudioSamplesPerSec(SamplesPerSec)

 

IltmmMediaInfo *pMediaInfo;	/* pointer to an interface */
long * SamplesPerSec;	/* pointer to a variable */

Retrieves the sample rate, in samples per second, for the audio channels of the current stream in the current source media file.

Parameter	Description
pMediaInfo	Pointer to an IltmmMediaInfo interface.
SamplesPerSec	Pointer to a variable that receives the sample rate.

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

This function will fail if the current stream is not an audio stream .

The current source media file, set using IltmmMediaInfo::put_SourceFile, is the file for which the IltmmMediaInfo interface/object gets information. This function must be called before calling any of the other IltmmMediaInfo functions used for retrieving information.

To set the current stream, call IltmmMediaInfo::put_CurrentStream.

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:

IltmmMediaInfo::get_AudioFormatTag, IltmmMediaInfo::get_AudioBitsPerSample, IltmmMediaInfo::get_AudioAvgBytesPerSec, IltmmMediaInfo::get_AudioChannels, IltmmMediaInfo::put_CurrentStream, IltmmMediaInfo::get_CurrentStream, IltmmMediaInfo::get_StreamDuration, IltmmMediaInfo::get_StreamMediaType, IltmmMediaInfo::get_StreamSubtype, IltmmMediaInfo::get_StreamSubtypeName, IltmmMediaInfo::get_StreamType, IltmmMediaInfo::get_StreamTypeName, IltmmMediaInfo::get_OutputStreams, IltmmMediaInfo::put_SourceFile

Topics:

Multimedia Function Group Media File Information

Example

For a C example, refer to Retrieving Media File Information for C.

For a C++ example, refer to Retrieving Media File Information for C++.