MFCreateMemoryBuffer Function
Allocates system memory and creates a media buffer to manage it.
Syntax
HRESULT MFCreateMemoryBuffer(
DWORD cbMaxLength,
IMFMediaBuffer **ppBuffer
);
Parameter
cbMaxLength
Size of the buffer, in bytes.ppBuffer
Receives a pointer to the IMFMediaBuffer interface of the media buffer. The caller must release the interface.
Rückgabewert
The function returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Rückgabecode | Beschreibung |
|---|---|
| S_OK | The function succeeded. |
| E_OUTOFMEMORY | Insufficient memory. |
Hinweise
The function allocates a buffer with a 1-byte memory alignment. To allocate a buffer that is aligned to a larger memory boundary, call MFCreateAlignedMemoryBuffer.
When the media buffer object is destroyed, it releases the allocated memory.
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 |
Mfapi.h |
Bibliothek |
Mfplat.lib |
DLL |
Mfplat.dll |