Windows Dev Center

IAMVideoAcceleratorNotify::GetUncompSurfacesInfo method

The GetUncompSurfacesInfo method queries the decoder for the number of uncompressed surfaces to allocate and the pixel format.

Syntax


HRESULT GetUncompSurfacesInfo(
  [in]      const GUID                   *pGuid,
  [in, out]       LPAMVAUncompBufferInfo pUncompBufferInfo
);

Parameters

pGuid [in]

Pointer to a GUID that specifies the DXVA profile in use.

pUncompBufferInfo [in, out]

Pointer to a AMVAUncompBufferInfo structure. The decoder fills in this structure with the decoder's requirements for the minimum and maximum number of surfaces and the pixel format.

To get the list of supported pixel formats, the decoder should call IAMVideoAccelerator::GetUncompFormatsSupported.

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 codeDescription
E_FAIL

Failure.

E_INVALIDARG

Argument is invalid.

E_NOTIMPL

Method is not supported.

E_POINTER

NULL pointer argument.

S_OK

Success.

 

Remarks

After the video renderer allocates the uncompressed surfaces, it calls the decoder's IAMVideoAcceleratorNotify::SetUncompSurfacesInfo method.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Videoacc.h

Library

Strmiids.lib

See also

Error and Success Codes
How Decoders Use IAMVideoAccelerator
IAMVideoAcceleratorNotify Interface

 

 

Community Additions

ADD
Show:
© 2015 Microsoft