IltmmMediaInfo::get_OutputStreams
#include "ltmm.h"
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C Syntax |
HRESULT IltmmMediaInfo__get_OutputStreams(pMediaInfo, Streams) |
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C++ Syntax |
HRESULT get_OutputStreams(Streams) |
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IltmmMediaInfo *pMediaInfo; |
/* pointer to an interface */ |
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long *Streams; |
/* pointer to a variable */ |
Retrieves the number of output streams available in the source media file.
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Parameter |
Description |
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pMediaInfo |
Pointer to an IltmmMediaInfo Interface. |
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Stream |
Pointer to a variable to be updated with the number of output streams in the source media file. |
Returns
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S_OK |
The function was successful. |
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<> S_OK |
An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation. |
Comments
The current source media file is the file for which the IltmmMediaInfo interface/object gets information. To set the current source media file, call IltmmMediaInfo::put_SourceFile.
The number of streams obtained by this function can be used to iterate through all streams, acquiring information on each.
To set the current stream, call IltmmMediaInfo::put_CurrentStream. Once the current stream has been set, information about that stream can be obtained by calling any of the following functions:
IltmmMediaInfo::get_StreamDuration
IltmmMediaInfo::get_StreamMediaType
IltmmMediaInfo::get_StreamSubtype
IltmmMediaInfo::get_StreamSubtypeName
IltmmMediaInfo::get_StreamType
IltmmMediaInfo::get_StreamTypeName
To get the current stream, call IltmmMediaInfo::get_CurrentStream.
Required DLLs and Libraries
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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++.