IltmmMediaInfo::get_AudioChannels
#include "ltmm.h"
C Syntax |
HRESULT IltmmMediaInfo_get_AudioChannels(pMediaInfo, Channels) |
C++ Syntax |
HRESULT get_AudioChannels(Channels) |
IltmmMediaInfo *pMediaInfo; |
/* pointer to an interface */ |
long * Channels; |
/* pointer to a variable */ |
Retrieves the number of audio channels for the current stream in the current source media file.
Parameter |
Description |
pMediaInfo |
Pointer to an IltmmMediaInfo interface. |
Channels |
Pointer to a variable that receives the number of audio channels. |
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. |
See Also
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++.