MFCreateStreamDescriptor Function
Creates a stream descriptor.
Syntax
HRESULT MFCreateStreamDescriptor(
DWORD dwStreamIdentifier,
DWORD cMediaTypes,
IMFMediaType **apMediaTypes,
IMFStreamDescriptor **ppDescriptor
);
Parameter
dwStreamIdentifier
Stream identifier.cMediaTypes
Number of elements in the apMediaTypes array.apMediaTypes
Pointer to an array of IMFMediaType interface pointers. These pointers are used to initialize the media type handler for the stream descriptor.ppDescriptor
Receives a pointer to the IMFStreamDescriptor interface of the new stream descriptor. The caller must release the interface.
Rückgabewert
Ist Funktion erfolgreich, wird "S_OK" zurückgegeben. Andernfalls wird ein HRESULT-Fehlercode zurückgegeben.
Hinweise
If you are writing a custom media source, you can use this function to create stream descriptors for the source. This function automatically creates the stream descriptor media type handler and initializes it with the list of types given in apMediaTypes. The function does not set the current media type on the handler, however. To set the type, call IMFMediaTypeHandler::SetCurrentMediaType.
This function is available on the following platforms if the Windows Media Format 11 SDK redistributable components are installed:
- Windows XP mit Service Pack 2 (SP2) und höher.
- Windows XP Media Center Edition 2005 with KB900325 (Windows XP Media Center Edition 2005) and KB925766 (Oktober 2006 Updaterollup für Windows XP Media Center Edition) installed.
Anforderungen
Mindestens unterstützter Client |
Windows Vista |
Mindestens unterstützter Server |
Windows Server 2008 |
Header |
Mfidl.h |
Bibliothek |
Mfplat.lib |
DLL |
Mfplat.dll |