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 before you can play (hear) it.

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.

IltmmDVDControl::get_AudioStreamsAvailable

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#include "ltmm.h"

C Syntax	HRESULT IltmmDVDControl_get_AudioStreamsAvailable(pDVD, pStreams)
C++ Syntax	HRESULT get_AudioStreamsAvailable(pStreams)

IltmmDVDControl *pDVD;	/* pointer to an interface */
long *pStreams;	/* pointer to a variable */

Retrieves the number of available audio streams.

Parameter	Description
pDVD	Pointer to an IltmmDVDControl interface.
pStreams	Pointer to a variable that receives the number of available audio streams.

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::get_CurrentAudioStream to retrieve the current audio stream .

To set the current audio stream, call IltmmDVDControl::put_CurrentAudioStream.

For more detailed information, refer to the Microsoft documentation for IDvdInfo2::GetCurrentAudio.

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:	IltmmDVDControl interface, IltmmDVDControl::GetAudioLanguage, IltmmDVDControl::get_CurrentAudioStream, IltmmDVDControl::put_CurrentAudioStream, 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++.