IltmmDVDControl::get_CurrentAudioStream

#include "ltmm.h"

C Syntax

HRESULT IltmmDVDControl__get_CurrentAudioStream(pDVD, pStream)

C++ Syntax

HRESULT get_CurrentAudioStream(pStream)

 

IltmmDVDControl *pDVD;

/* pointer to an interface */

long *pStream;

/* pointer to a variable */

Retrieves the number of the currently selected 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..

Parameter

Description

pDVD

Pointer to an IltmmDVDControl interface.

pStream

Pointer to a variable that receives the currently selected audio stream number in the current title The name for a group of related video files (called "Chapters") on your DVD. For example, for a DVD called "My Summer Vacation," you might have the titles "Water Skiing," "New Friends," and "Hiking." For each of those titles, you might have one or more different video files..

Returns

S_OK

The function ran successfully.

<> S_OK

An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

Call IltmmDVDControl::put_CurrentAudioStream to set the current audio stream.

To retrieve the number of available audio streams, call IltmmDVDControl::get_AudioStreamsAvailable.

For more detailed information, refer to the Microsoft documentation for IDvdInfo2::GetCurrentAudio at http://msdn.microsoft.com/archive/default.asp?url=/library/en-us/directshow/htm/idvdinfo2getcurrentaudio.asp.

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.

See Also

Elements:

IltmmDVDControl interface, IltmmDVDControl::get_CurrentDomain, IltmmDVDControl::get_CurrentTitle, IltmmDVDControl::get_CurrentChapter, IltmmDVDControl::get_CurrentDiscSide, IltmmDVDControl::get_CurrentTime, IltmmDVDControl::get_CurrentVolume, IltmmDVDControl::get_CurrentUOPS, IltmmDVDControl::get_CurrentButton, IltmmDVDControl::get_CurrentAngle, IltmmDVDControl::get_CurrentSubpictureStream, IltmmDVDControl::GetAudioLanguage, IltmmDVDControl::put_CurrentAudioStream, IltmmDVDControl::get_AudioStreamsAvailable, IltmmDVDControl::get_DefaultAudioLanguage, IltmmDVDControl::get_DefaultAudioLanguageExt, IltmmDVDControl::IsAudioStreamEnabled, IltmmDVDControl::SelectDefaultAudioLanguage

Topics:

Multimedia Function Group

Example

For a C example, refer to IltmmDVDControl::GetButtonAtPosition Example for C.

For a C++ example, refer to IltmmDVDControl::GetButtonAtPosition Example for C++.