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118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
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//------------------------------------------------------------------------------
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// File: iwstdec.h
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//
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// Desc: WST Decoder related definitions and interfaces for ActiveMovie
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//
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// Copyright (c) 1999 - 2001, Microsoft Corporation. All rights reserved.
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//------------------------------------------------------------------------------
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//
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#ifndef __IWSTDEC__
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#define __IWSTDEC__
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//
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// Some data types used as WST decoder parameters by the interface
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//
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typedef struct _AM_WST_PAGE {
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DWORD dwPageNr ;
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DWORD dwSubPageNr ;
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BYTE *pucPageData;
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} AM_WST_PAGE, *PAM_WST_PAGE ;
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typedef enum _AM_WST_LEVEL {
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AM_WST_LEVEL_1_5 = 0
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} AM_WST_LEVEL, *PAM_WST_LEVEL ;
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typedef enum _AM_WST_SERVICE {
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AM_WST_SERVICE_None = 0,
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AM_WST_SERVICE_Text,
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AM_WST_SERVICE_IDS,
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AM_WST_SERVICE_Invalid
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} AM_WST_SERVICE, *PAM_WST_SERVICE ;
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typedef enum _AM_WST_STATE {
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AM_WST_STATE_Off = 0,
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AM_WST_STATE_On
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} AM_WST_STATE, *PAM_WST_STATE ;
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typedef enum _AM_WST_STYLE {
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AM_WST_STYLE_None = 0,
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AM_WST_STYLE_Invers
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} AM_WST_STYLE, *PAM_WST_STYLE ;
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typedef enum _AM_WST_DRAWBGMODE {
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AM_WST_DRAWBGMODE_Opaque,
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AM_WST_DRAWBGMODE_Transparent
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} AM_WST_DRAWBGMODE, *PAM_WST_DRAWBGMODE ;
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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//
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// WST Decoder standard COM interface
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//
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DECLARE_INTERFACE_(IAMWstDecoder, IUnknown)
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{
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public:
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//
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// Decoder options to be used by apps
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//
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// What is the decoder's level
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STDMETHOD(GetDecoderLevel)(THIS_ AM_WST_LEVEL *lpLevel) PURE ;
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// STDMETHOD(SetDecoderLevel)(THIS_ AM_WST_LEVEL Level) PURE ;
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// Which of the services is being currently used
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STDMETHOD(GetCurrentService)(THIS_ AM_WST_SERVICE *lpService) PURE ;
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// STDMETHOD(SetCurrentService)(THIS_ AM_WST_SERVICE Service) PURE ;
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// Query/Set the service state (On/Off)
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// supported state values are AM_WSTState_On and AM_WSTState_Off
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STDMETHOD(GetServiceState)(THIS_ AM_WST_STATE *lpState) PURE ;
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STDMETHOD(SetServiceState)(THIS_ AM_WST_STATE State) PURE ;
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//
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// Output options to be used by downstream filters
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//
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// What size, bitdepth etc should the output video be
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STDMETHOD(GetOutputFormat)(THIS_ LPBITMAPINFOHEADER lpbmih) PURE ;
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// GetOutputFormat() method, if successful, returns
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// 1. S_FALSE if no output format has so far been defined by downstream filters
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// 2. S_OK if an output format has already been defined by downstream filters
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STDMETHOD(SetOutputFormat)(THIS_ LPBITMAPINFO lpbmi) PURE ;
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// Specify physical color to be used in colorkeying the background
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// for overlay mixing
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STDMETHOD(GetBackgroundColor)(THIS_ DWORD *pdwPhysColor) PURE ;
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STDMETHOD(SetBackgroundColor)(THIS_ DWORD dwPhysColor) PURE ;
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// Specify if whole output bitmap should be redrawn for each sample
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STDMETHOD(GetRedrawAlways)(THIS_ LPBOOL lpbOption) PURE ;
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STDMETHOD(SetRedrawAlways)(THIS_ BOOL bOption) PURE ;
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// Specify if the caption text background should be opaque/transparent
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STDMETHOD(GetDrawBackgroundMode)(THIS_ AM_WST_DRAWBGMODE *lpMode) PURE ;
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STDMETHOD(SetDrawBackgroundMode)(THIS_ AM_WST_DRAWBGMODE Mode) PURE ;
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// supported mode values are AM_WST_DrawBGMode_Opaque and
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// AM_WST_DrawBGMode_Transparent
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STDMETHOD(SetAnswerMode)(THIS_ BOOL bAnswer) PURE ;
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STDMETHOD(GetAnswerMode)(THIS_ BOOL* pbAnswer) PURE ;
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STDMETHOD(SetHoldPage)(THIS_ BOOL bHoldPage) PURE ;
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STDMETHOD(GetHoldPage)(THIS_ BOOL* pbHoldPage) PURE ;
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STDMETHOD(GetCurrentPage)(THIS_ PAM_WST_PAGE pWstPage) PURE;
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STDMETHOD(SetCurrentPage)(THIS_ AM_WST_PAGE WstPage) PURE;
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} ;
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif // __IWSTDEC__
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