videoacc.idl
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上传日期:2019-04-29
资源大小:56270k
文件大小:8k
- //------------------------------------------------------------------------------
- // File: VideoAcc.idl
- //
- // Desc: An interface exposed by the overlay mixer to help decode samples
- // using hardware video acceleration.
- //
- // Copyright (c) 1992 - 2000, 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);
- };