IAMVideoAcceleratorNotify::GetCreateVideoAcceleratorData method (videoacc.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The GetCreateVideoAcceleratorData method gets information needed to create a video accelerator object.
Syntax
HRESULT GetCreateVideoAcceleratorData(
[in] const GUID *pGuid,
[out] LPDWORD pdwSizeMiscData,
[out] LPVOID *ppMiscData
);
Parameters
[in] pGuid
Pointer to a GUID that specifies the DXVA profile in use.
[out] pdwSizeMiscData
Receives the size of the data returned in ppMiscData, in bytes.
[out] ppMiscData
Receives a pointer to a buffer that contains a DXVA_ConnectMode structure. The decoder must call CoTaskMemAlloc to allocate the memory for the structure. The caller must free the memory by calling CoTaskMemFree.
Return value
Returns an HRESULT value that depends on the implementation of the interface. HRESULT can include one of the following standard constants, or other values not listed.
| Return code | Description |
|---|---|
|
Failure. |
|
Argument is invalid. |
|
Method is not supported. |
|
NULL pointer argument. |
|
Success. |
Requirements
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | videoacc.h |
| Library | Strmiids.lib |