356 lines
9 KiB
C
356 lines
9 KiB
C
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//
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// FPTerm.h
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//
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#ifndef __FPTERMINAL__
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#define __FPTERMINAL__
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#include "MultiTrackTerminal.h"
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#include "..\terminals\Storage\FPUnit.h"
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#include "fpbridge.h"
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extern const CLSID CLSID_FilePlaybackTerminalCOMClass;
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typedef enum
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{
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TCS_NONE = 0,
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TCS_TOBECREATED,
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TCS_CREATED
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} TRACK_CREATIONSTATE;
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typedef struct
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{
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TRACK_CREATIONSTATE CreationState;
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AM_MEDIA_TYPE* pMediaType;
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} TRACK_INFO;
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typedef enum
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{
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TRACK_AUDIO = 0,
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TRACK_VIDEO
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} TRACK_MEDIATYPE;
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//
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// FilePlayback Terminal
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// This is the class that implements the multitrack termnal
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//
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/////////////////////////////////////////////////////////////////
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// Intermediate classes used for DISPID encoding
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template <class T>
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class ITMediaPlaybackVtbl : public ITMediaPlayback
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{
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};
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template <class T>
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class ITTerminalVtbl : public ITTerminal
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{
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};
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template <class T>
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class ITMediaControlVtbl : public ITMediaControl
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{
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};
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//
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// FilePlayback Terminal
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// This is the class that implements the multitrack termnal
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//
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class CFPTerminal :
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public CComCoClass<CFPTerminal, &CLSID_FilePlaybackTerminal>,
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public IDispatchImpl<ITMediaPlaybackVtbl<CFPTerminal>, &IID_ITMediaPlayback, &LIBID_TAPI3Lib>,
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public IDispatchImpl<ITTerminalVtbl<CFPTerminal>, &IID_ITTerminal, &LIBID_TAPI3Lib>,
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public ITPluggableTerminalInitialization,
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public ITPluggableTerminalEventSinkRegistration,
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public IFPBridge,
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public IDispatchImpl<ITMediaControlVtbl<CFPTerminal>, &IID_ITMediaControl, &LIBID_TAPI3Lib>,
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public CMSPObjectSafetyImpl,
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public CMultiTrackTerminal
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{
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public:
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//
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// Constructor / Destructor
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//
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CFPTerminal();
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~CFPTerminal();
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DECLARE_NOT_AGGREGATABLE(CFPTerminal)
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DECLARE_GET_CONTROLLING_UNKNOWN()
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virtual HRESULT FinalConstruct(void);
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public:
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DECLARE_REGISTRY_RESOURCEID(IDR_FILE_PLAYBACK)
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BEGIN_COM_MAP(CFPTerminal)
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COM_INTERFACE_ENTRY2(IDispatch, ITTerminal)
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COM_INTERFACE_ENTRY(ITMediaPlayback)
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COM_INTERFACE_ENTRY(ITTerminal)
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COM_INTERFACE_ENTRY(ITPluggableTerminalInitialization)
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COM_INTERFACE_ENTRY(IObjectSafety)
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COM_INTERFACE_ENTRY(ITMediaControl)
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COM_INTERFACE_ENTRY(ITPluggableTerminalEventSinkRegistration)
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COM_INTERFACE_ENTRY(IFPBridge)
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COM_INTERFACE_ENTRY_CHAIN(CMultiTrackTerminal)
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COM_INTERFACE_ENTRY_AGGREGATE(IID_IMarshal, m_pFTM)
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END_COM_MAP()
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// --- ITTeminal ---
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STDMETHOD(get_TerminalClass)(
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OUT BSTR *pVal);
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STDMETHOD(get_TerminalType)(
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OUT TERMINAL_TYPE *pVal);
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STDMETHOD(get_State)(
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OUT TERMINAL_STATE *pVal);
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STDMETHOD(get_Name)(
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OUT BSTR *pVal);
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STDMETHOD(get_MediaType)(
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OUT long * plMediaType);
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STDMETHOD(get_Direction)(
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OUT TERMINAL_DIRECTION *pDirection);
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// --- ITMediaPlayback ---
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virtual HRESULT STDMETHODCALLTYPE put_PlayList(
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IN VARIANTARG PlayListVariant
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);
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virtual HRESULT STDMETHODCALLTYPE get_PlayList(
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OUT VARIANTARG* pPlayListVariant
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);
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// --- ITPluggableTerminalInitialization ---
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virtual HRESULT STDMETHODCALLTYPE InitializeDynamic (
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IN IID iidTerminalClass,
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IN DWORD dwMediaType,
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IN TERMINAL_DIRECTION Direction,
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IN MSP_HANDLE htAddress);
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// --- ITMediaControl ---
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virtual HRESULT STDMETHODCALLTYPE Start( void);
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virtual HRESULT STDMETHODCALLTYPE Stop( void);
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virtual HRESULT STDMETHODCALLTYPE Pause( void);
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virtual HRESULT STDMETHODCALLTYPE get_MediaState(
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OUT TERMINAL_MEDIA_STATE *pTerminalMediaState);
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// --- CMultiTrackTerminal ---
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virtual HRESULT STDMETHODCALLTYPE CreateTrackTerminal(
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IN long MediaType,
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IN TERMINAL_DIRECTION TerminalDirection,
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OUT ITTerminal **ppTerminal
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);
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// this function is not accessible on the playback terminal
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// so override it to retutn E_NOTSUPPORTED
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virtual HRESULT STDMETHODCALLTYPE RemoveTrackTerminal(
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IN ITTerminal * pTrackTerminalToRemove
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);
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// --- ITPluggableTerminalEventSinkRegistration ---
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STDMETHOD(RegisterSink)(
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IN ITPluggableTerminalEventSink *pSink
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);
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STDMETHOD(UnregisterSink)();
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// --- IFPBridge ---
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STDMETHOD(Deliver)(
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IN long nMediaType,
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IN IMediaSample* pSample
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);
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//
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// IDispatch methods
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//
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STDMETHOD(GetIDsOfNames)(REFIID riid,
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LPOLESTR* rgszNames,
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UINT cNames,
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LCID lcid,
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DISPID* rgdispid
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);
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STDMETHOD(Invoke)(DISPID dispidMember,
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REFIID riid,
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LCID lcid,
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WORD wFlags,
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DISPPARAMS* pdispparams,
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VARIANT* pvarResult,
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EXCEPINFO* pexcepinfo,
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UINT* puArgErr
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);
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public:
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//
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// overriding IObjectSafety methods. we are only safe if properly
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// initialized by terminal manager, so these methods will fail if this
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// is not the case.
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//
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STDMETHOD(SetInterfaceSafetyOptions)(REFIID riid,
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DWORD dwOptionSetMask,
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DWORD dwEnabledOptions);
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STDMETHOD(GetInterfaceSafetyOptions)(REFIID riid,
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DWORD *pdwSupportedOptions,
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DWORD *pdwEnabledOptions);
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private:
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// --- Memebers --
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TERMINAL_MEDIA_STATE m_State; // Terminal current state
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CMSPCritSection m_Lock; // Critical section
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ITPluggableTerminalEventSink* m_pEventSink; // Fire events to client
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// --- Terminal attributes ---
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MSP_HANDLE m_htAddress; // MSP address handle
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IID m_TerminalClassID; // TerminalClass
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TERMINAL_DIRECTION m_Direction; // Direction
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TERMINAL_STATE m_TerminalState; // Terminal State
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DWORD m_dwMediaTypes; // Media types supported
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TCHAR m_szName[MAX_PATH+1]; // Terminal friendly name
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int m_nPlayIndex; // Index of playing storage
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VARIANT m_varPlayList; // The playlist
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IUnknown* m_pFTM; // pointer to the free threaded marshaler
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CPlaybackUnit* m_pPlaybackUnit; // The playback graph
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HRESULT ValidatePlayList(
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IN VARIANTARG varPlayList,
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OUT long* pnLeftBound,
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OUT long* pnRightBound
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);
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HRESULT RollbackTrackInfo();
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//
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// uninitialize all tracks and remove them from the list of managed tracks
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//
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HRESULT ShutdownTracks();
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//
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// uninitialize a given track and remove it from the list of managed tracks
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//
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HRESULT InternalRemoveTrackTerminal(
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IN ITTerminal *pTrackTerminalToRemove
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);
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//
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// a helper method that fires events on one of the tracks
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//
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HRESULT FireEvent(
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TERMINAL_MEDIA_STATE tmsState,
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FT_STATE_EVENT_CAUSE ftecEventCause,
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HRESULT hrErrorCode
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);
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//
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// a helper method that attempts to stop all tracks
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//
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HRESULT StopAllTracks();
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BSTR GetFileNameFromPlayList(
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IN VARIANTARG varPlayList,
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IN long nIndex
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);
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//
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// Create the playback graph
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//
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HRESULT CreatePlaybackUnit(
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IN BSTR bstrFileName
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);
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//
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// Play a file from the list
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//
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HRESULT ConfigurePlaybackUnit(
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IN BSTR bstrFileName
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);
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//
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// Helper method that causes a state transition
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//
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HRESULT DoStateTransition(
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IN TERMINAL_MEDIA_STATE tmsDesiredState
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);
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//
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// Create a track for a specific media
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//
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HRESULT CreateMediaTracks(
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IN long nMediaType
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);
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HRESULT NextPlayIndex(
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);
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public:
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//
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// Returns a track for a media type
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//
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int TracksCreated(
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IN long lMediaType
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);
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//
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// a helper method called by tracks when they decide to make a state change.
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//
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HRESULT TrackStateChange(TERMINAL_MEDIA_STATE tmsState,
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FT_STATE_EVENT_CAUSE ftecEventCause,
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HRESULT hrErrorCode);
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HRESULT PlayItem(
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IN int nItem
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);
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private:
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//
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// this terminal should only be instantiated in the context of terminal
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// manager. the object will only be safe for scripting if it has been
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// InitializeDynamic'ed.
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//
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// this flag will be set when InitializeDynamic succeeds
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//
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BOOL m_bKnownSafeContext;
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};
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#endif
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//eof
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