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re3/sdk/dx8sdk/Include/DShowIDL/Videoacc.idl
2020-08-02 19:36:50 +03:00

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//------------------------------------------------------------------------------
// File: VideoAcc.idl
//
// Desc: An interface exposed by the overlay mixer to help decode samples
// using hardware video acceleration.
//
// Copyright (c) 1992-2002, Microsoft Corporation. All rights reserved.
//------------------------------------------------------------------------------
import "unknwn.idl";
cpp_quote("//")
cpp_quote("// The following declarations within the 'if 0' block are dummy typedefs used to make")
cpp_quote("// the motncomp.idl file build. The actual definitions are contained in ddraw.h and amva.h")
cpp_quote("//")
cpp_quote("#if 0")
typedef void* LPVOID;
typedef void* LPGUID;
typedef void* LPDIRECTDRAWSURFACE;
typedef void* LPDDPIXELFORMAT;
typedef void* LPAMVAInternalMemInfo;
typedef void AMVAUncompDataInfo;
typedef void* LPAMVACompBufferInfo;
typedef void AMVABUFFERINFO;
typedef void AMVAEndFrameInfo;
typedef void* LPAMVAUncompBufferInfo;
typedef void AMVABeginFrameInfo;
typedef IUnknown* IMediaSample;
cpp_quote("#endif")
cpp_quote("#include <ddraw.h>")
cpp_quote("#include <amva.h>")
[
local,
object,
uuid(256A6A21-FBAD-11d1-82BF-00A0C9696C8F),
helpstring("IAMVideoAcceleratorNotify Interface"),
pointer_default(unique)
]
// IAMVideoAcceleratorNotify
interface IAMVideoAcceleratorNotify : IUnknown
{
// get information necessary to allocate uncompressed data buffers
// which is not part of the mediatype format (like how many buffers to allocate etc)
HRESULT GetUncompSurfacesInfo([in] const GUID *pGuid, [in] [out] LPAMVAUncompBufferInfo pUncompBufferInfo);
// set information regarding allocated uncompressed data buffers
HRESULT SetUncompSurfacesInfo([in] DWORD dwActualUncompSurfacesAllocated);
// get information necessary to create video accelerator object. It is the caller's responsibility
// to call CoTaskMemFree() on *ppMiscData
HRESULT GetCreateVideoAcceleratorData([in] const GUID *pGuid, [out] LPDWORD pdwSizeMiscData, [out] LPVOID *ppMiscData);
};
[
local,
object,
uuid(256A6A22-FBAD-11d1-82BF-00A0C9696C8F),
helpstring("IAMVideoAccelerator Interface"),
pointer_default(unique)
]
// IAMVideoAccelerator
interface IAMVideoAccelerator : IUnknown
{
// pdwNumGuidsSupported is an IN OUT paramter
// pGuidsSupported is an IN OUT paramter
// if pGuidsSupported is NULL, pdwNumGuidsSupported should return back with the
// number of uncompressed pixel formats supported
// Otherwise pGuidsSupported is an array of *pdwNumGuidsSupported structures
HRESULT GetVideoAcceleratorGUIDs([in] [out] LPDWORD pdwNumGuidsSupported, [in] [out] LPGUID pGuidsSupported);
// pGuid is an IN parameter
// pdwNumFormatsSupported is an IN OUT paramter
// pFormatsSupported is an IN OUT paramter (caller should make sure to set the size of EACH struct)
// if pFormatsSupported is NULL, pdwNumFormatsSupported should return back with
// the number of uncompressed pixel formats supported
// Otherwise pFormatsSupported is an array of *pdwNumFormatsSupported structures
HRESULT GetUncompFormatsSupported( [in] const GUID *pGuid, [in] [out] LPDWORD pdwNumFormatsSupported,
[in] [out] LPDDPIXELFORMAT pFormatsSupported);
// pGuid is an IN parameter
// pamvaUncompDataInfo is an IN parameter
// pamvaInternalMemInfo is an IN OUT parameter (caller should make sure to set the size of struct)
// currently only gets info about how much scratch memory will the hal allocate for its private use
HRESULT GetInternalMemInfo([in] const GUID *pGuid, [in] const AMVAUncompDataInfo *pamvaUncompDataInfo,
[in] [out] LPAMVAInternalMemInfo pamvaInternalMemInfo);
// pGuid is an IN parameter
// pamvaUncompDataInfo is an IN parameter
// pdwNumTypesCompBuffers is an IN OUT paramter
// pamvaCompBufferInfo is an IN OUT paramter (caller should make sure to set the size of EACH struct)
// if pamvaCompBufferInfo is NULL, pdwNumTypesCompBuffers should return back with the number of types of
// compressed buffers
// Otherwise pamvaCompBufferInfo is an array of *pdwNumTypesCompBuffers structures
HRESULT GetCompBufferInfo([in] const GUID *pGuid, [in] const AMVAUncompDataInfo *pamvaUncompDataInfo,
[in] [out] LPDWORD pdwNumTypesCompBuffers, [out] LPAMVACompBufferInfo pamvaCompBufferInfo);
// pdwNumTypesCompBuffers is an IN OUT paramter
// pamvaCompBufferInfo is an IN OUT paramter (caller should make sure to set the size of EACH struct)
// if pamvaCompBufferInfo is NULL, pdwNumTypesCompBuffers should return back with the number of types of
// compressed buffers
// Otherwise pamvaCompBufferInfo is an array of *pdwNumTypesCompBuffers structures
// only valid to call this after the pins are connected
HRESULT GetInternalCompBufferInfo([in] [out] LPDWORD pdwNumTypesCompBuffers, [out] LPAMVACompBufferInfo pamvaCompBufferInfo);
// begin a frame, the pMiscData is passed directly to the hal
// only valid to call this after the pins are connected
// Tells the ovmixer which frame is the destination
// frame. Use indices (valid vales are [0 .. pdwNumSurfacesAllocated-1]) to specify frames
HRESULT BeginFrame([in] const AMVABeginFrameInfo *amvaBeginFrameInfo);
// end a frame, the pMiscData is passed directly to the hal
// only valid to call this after the pins are connected
HRESULT EndFrame([in] const AMVAEndFrameInfo *pEndFrameInfo);
// lock and obtain access to a single buffer
// only valid to call this after the pins are connected
// Buffers are identified by type and index within that type
// Specifiying read-only will allow access to busy reference
// frames
// Output (uncompressed) frames use a type index of 0xFFFFFFFF
HRESULT GetBuffer(
[in] DWORD dwTypeIndex,
[in] DWORD dwBufferIndex,
[in] BOOL bReadOnly,
[out] LPVOID *ppBuffer,
[out] LONG *lpStride);
// unlock a single buffer
// Buffers are identified by type and index within that type
// only valid to call this after the pins are connected
HRESULT ReleaseBuffer([in] DWORD dwTypeIndex, [in] DWORD dwBufferIndex);
// Perform a decompression operation
// Private data can be passed to and from a driver
// identifiers for the corresponding members of pamvaMacroBlockInfo
// pamvaMacroBlockInfo is an IN parameter which is array (of length dwNumBlocks) of structures
// only valid to call this after the pins are connected
HRESULT Execute(
[in] DWORD dwFunction,
[in] LPVOID lpPrivateInputData,
[in] DWORD cbPrivateInputData,
[in] LPVOID lpPrivateOutputDat,
[in] DWORD cbPrivateOutputData,
[in] DWORD dwNumBuffers,
[in] const AMVABUFFERINFO *pamvaBufferInfo);
// query the decode status of a particular decompression operation
// dwTypeIndex and dwBufferIndex define the buffer whose status is
// being queried
HRESULT QueryRenderStatus([in] DWORD dwTypeIndex,
[in] DWORD dwBufferIndex,
[in] DWORD dwFlags);
// display a frame. The mediasample contains the timestamps etc for the frame to be displayed
// this call is a non-blocking call
// only valid to call this after the pins are connected
HRESULT DisplayFrame([in] DWORD dwFlipToIndex, [in] IMediaSample *pMediaSample);
};