//------------------------------------------------------------------------------
// File: VPConfig.h
//
// Desc: An interface exposed by the decoder to help it and the filter
// configuring the videoport to communicate.
//
// Copyright (c) 1992-2001, Microsoft Corporation. All rights reserved.
//------------------------------------------------------------------------------
#ifndef __IVPConfig__
#define __IVPConfig__
#ifdef __cplusplus
extern "C" {
#endif
// IVPBaseConfig
DECLARE_INTERFACE_(IVPBaseConfig, IUnknown)
{
public:
// gets the various connection information structures (guid, portwidth)
// in an array of structures. If the pointer to the array is NULL, first
// parameter returns the total number of formats supported.
STDMETHOD (GetConnectInfo)(THIS_
IN OUT LPDWORD pdwNumConnectInfo,
IN OUT LPDDVIDEOPORTCONNECT pddVPConnectInfo
) PURE;
// sets the connection entry chosen (0, 1, .. ,(dwNumProposedEntries-1))
STDMETHOD (SetConnectInfo)(THIS_
IN DWORD dwChosenEntry
) PURE;
// gets various data parameters, includes dimensionnal info
STDMETHOD (GetVPDataInfo)(THIS_
IN OUT LPAMVPDATAINFO pamvpDataInfo
) PURE;
// retrives maximum pixels per second rate expected for a given
// format and a given scaling factor. If decoder does not support
// those scaling factors, then it gives the rate and the nearest
// scaling factors.
STDMETHOD (GetMaxPixelRate)(THIS_
IN OUT LPAMVPSIZE pamvpSize,
OUT LPDWORD pdwMaxPixelsPerSecond
) PURE;
// informs the callee of the videoformats supported by the videoport
STDMETHOD (InformVPInputFormats)(THIS_
IN DWORD dwNumFormats,
IN LPDDPIXELFORMAT pDDPixelFormats
) PURE;
// gets the various formats supported by the decoder in an array
// of structures. If the pointer to the array is NULL, first parameter
// returns the total number of formats supported.
STDMETHOD (GetVideoFormats)(THIS_
IN OUT LPDWORD pdwNumFormats,
IN OUT LPDDPIXELFORMAT pddPixelFormats
) PURE;
// sets the format entry chosen (0, 1, .. ,(dwNumProposedEntries-1))
STDMETHOD (SetVideoFormat)(THIS_
IN DWORD dwChosenEntry
) PURE;
// asks the decoder to treat even fields like odd fields and visa versa
STDMETHOD (SetInvertPolarity)(THIS_
) PURE;
// the mixer uses this function to determine if the callee wants
// the vpmixer to use its overlay surface and if so to get a pointer to it
STDMETHOD (GetOverlaySurface)(THIS_
OUT LPDIRECTDRAWSURFACE* ppddOverlaySurface
) PURE;
// sets the direct draw kernel handle
STDMETHOD (SetDirectDrawKernelHandle)(THIS_
IN ULONG_PTR dwDDKernelHandle
) PURE;
// sets the video port id
STDMETHOD (SetVideoPortID)(THIS_
IN DWORD dwVideoPortID
) PURE;
// sets the direct draw surface kernel handle
STDMETHOD (SetDDSurfaceKernelHandles)(THIS_
IN DWORD cHandles,
IN ULONG_PTR *rgDDKernelHandles
) PURE;
// Tells driver about surface created on its behalf by ovmixer/vbisurf and
// returned from videoport/ddraw. Should always return NOERROR or E_NOIMPL.
// dwPitch is the pitch of the surface (distance in pixels between the start
// pixels of two consecutive lines of the surface). (dwXOrigin, dwYOrigin)
// are the (X, Y) coordinates of the pixel at which valid data starts.
STDMETHOD (SetSurfaceParameters)(THIS_
IN DWORD dwPitch,
IN DWORD dwXOrigin,
IN DWORD dwYOrigin
) PURE;
};
// IVPConfig
DECLARE_INTERFACE_(IVPConfig, IVPBaseConfig)
{
public:
// the mixer uses this function to determine if the callee wants
// the mixer to decimate VIDEO data at its own descrition
STDMETHOD (IsVPDecimationAllowed)(THIS_
OUT LPBOOL pbIsDecimationAllowed
) PURE;
// sets the scaling factors. If decoder does not support these,
// then it sets the values to the nearest factors it can support
STDMETHOD (SetScalingFactors)(THIS_
IN LPAMVPSIZE pamvpSize
) PURE;
};
// IVPVBIConfig
DECLARE_INTERFACE_(IVPVBIConfig, IVPBaseConfig)
{
public:
};
#ifdef __cplusplus
}
#endif
#endif // __IVPConfig__
