Retrieves the duration of the longest stream in the current source media file, in seconds.
#include "ltmm.h"
Language | Syntax |
---|---|
C | HRESULT IltmmMediaInfo_get_SourceDuration(pMediaInfo, pVal) |
C++ | HRESULT get_SourceDuration(pVal) |
Pointer to an IltmmMediaInfo Interface.
Pointer to a variable to be updated with the duration of the longest stream in the current source media file. This value is measured in seconds.
Value | Meaning |
---|---|
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. |
The duration of the longest stream is based on normal playback speed. Changing the playback rate does not affect the duration.
To get the current source media file, call IltmmMediaInfo::get_SourceFile.
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.
Call IltmmMediaInfo::ResetSource to release the source file when it is no longer needed.
Win32, x64.
Language | Example |
---|---|
C | Retrieving Media File Information |
C++ | Retrieving Media File Information |
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