IltmmMediaInfo::get_AudioAvgBytesPerSec

#include "ltmm.h"

C Syntax

HRESULT IltmmMediaInfo__get_AudioAvgBytesPerSec (pMediaInfo, TransferRate)

C++ Syntax

HRESULT get_AudioAvgBytesPerSec (TransferRate)

 

IltmmMediaInfo *pMediaInfo;

/* pointer to an interface */

long * TransferRate;

/* pointer to a variable */

Retrieves the average transfer rate, in bytes per second, for the current audio format in the current stream in the current source media file.

Parameter

Description

pMediaInfo

Pointer to an IltmmMediaInfo interface.

TransferRate

Pointer to a variable that receives the average transfer rate, in bytes per second, of the current audio format.

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 portion of the file holding the audio data. The audio data might be compressed to save disk space. The data has to be decompressed using an audio decompressor oftware component which decompresses audio. It must be designed to work with ACM or DirectShow . Note that different compression methods require different decompressors. There is no universal decompressor capable of decoding all compressed streams. before you can play (hear) it..

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_AudioChannels, IltmmMediaInfo::get_AudioSamplesPerSec, IltmmMediaInfo::get_AudioBitsPerSample, 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++.