155 lines
4 KiB
C
155 lines
4 KiB
C
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/*
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- INSCODEC.H
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-
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* Microsoft NetMeeting
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* Network Audio Controller (NAC) DLL
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* Internal header file for installable codecs
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*
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* Revision History:
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*
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* When Who What
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* -------- ------------------ ---------------------------------------
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* 1.29.97 Yoram Yaacovi Created
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*
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*/
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#include <pshpack8.h> /* Assume 8 byte packing throughout */
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/*
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* Macros
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*/
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#define COMPARE_GUIDS(a,b) RtlEqualMemory((a), (b), sizeof(GUID))
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#define ACQMUTEX(hMutex) \
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while (WaitForSingleObject(hMutex, 10000) == WAIT_TIMEOUT) \
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{ \
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ERRORMSG(("Thread 0x%x waits on mutex\n", GetCurrentThreadId())); \
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} \
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#define RELMUTEX(hMutex) ReleaseMutex(hMutex)
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#define IMPL(class, member, pointer) \
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(&((class *)0)->member == pointer, ((class *) (((LONG_PTR) pointer) - offsetof (class, member))))
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/*
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* Data Structures
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*/
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/****************************************************************************
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* @doc INTERNAL DATASTRUC AUDIO
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*
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* @class CInstallAudioCodecs | Installable Audio codecs
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*
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* @base public | IInstallAudioCodecs
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*
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***************************************************************************/
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class CInstallAudioCodecs : public IInstallAudioCodecs
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{
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public:
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// IUnknown methods
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STDMETHODIMP QueryInterface (REFIID riid, void **ppv);
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STDMETHODIMP_(ULONG) AddRef (void);
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STDMETHODIMP_(ULONG) Release (void);
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// IInstallAudioCodecs methods
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STDMETHODIMP AddACMFormat (LPWAVEFORMATEX lpwfx, PBASIC_AUDCAP_INFO pAudCapInfo);
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STDMETHODIMP RemoveACMFormat (LPWAVEFORMATEX lpwfx);
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STDMETHODIMP ReorderFormats (PAUDCAP_INFO_LIST pAudCapInfoList);
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STDMETHODIMP EnumFormats(PAUDCAP_INFO_LIST *ppAudCapInfoList);
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STDMETHODIMP FreeBuffer(LPVOID lpBuffer);
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private:
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// Private functions
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// Debug display functions
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// Variables
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};
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/****************************************************************************
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* @doc INTERNAL DATASTRUC VIDEO
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*
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* @class CInstallVideoCodecs | Installable Video codecs
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*
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* @base public | IInstallVideoCodecs
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*
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***************************************************************************/
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class CInstallVideoCodecs : public IInstallVideoCodecs
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{
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public:
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// IUnknown methods
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STDMETHODIMP QueryInterface (REFIID riid, void **ppv);
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STDMETHODIMP_(ULONG) AddRef (void);
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STDMETHODIMP_(ULONG) Release (void);
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// IInstallVideoCodecs methods
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STDMETHODIMP AddVCMFormat (PVIDCAP_INFO pVidCapInfo);
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STDMETHODIMP RemoveVCMFormat (PVIDCAP_INFO pVidCapInfo);
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STDMETHODIMP ReorderFormats (PVIDCAP_INFO_LIST pVidCapInfoList);
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STDMETHODIMP EnumFormats(PVIDCAP_INFO_LIST *ppVidCapInfoList);
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STDMETHODIMP FreeBuffer(LPVOID lpBuffer);
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private:
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// Private functions
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STDMETHODIMP AddRemoveVCMFormat(PVIDCAP_INFO pVidCapInfo,
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BOOL bAdd);
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// Debug display functions
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// Variables
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};
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/****************************************************************************
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* @doc INTERNAL DATASTRUC
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*
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* @class CInstallCodecs | Installable codecs
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*
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* @base public | IUnknown
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*
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***************************************************************************/
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class CInstallCodecs : public IInstallCodecs
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{
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friend class CInstallAudioCodecs;
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friend class CInstallVideoCodecs;
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public:
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// IUnknown methods
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STDMETHODIMP QueryInterface (REFIID riid, void **ppv);
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STDMETHODIMP_(ULONG) AddRef (void);
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STDMETHODIMP_(ULONG) Release (void);
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CInstallCodecs (void);
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~CInstallCodecs (void);
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HRESULT Initialize(REFIID riid);
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private:
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// Functions
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STDMETHODIMP FreeBuffer(LPVOID lpBuffer);
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STDMETHODIMP TranslateHr(HRESULT hr);
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// Audio and video interfaces
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CInstallAudioCodecs ifAudio;
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CInstallVideoCodecs ifVideo;
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// Variables
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// @cmember Reference Count
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int m_cRef;
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// Two public members to allow access from the nested classes
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// @cmember Pointer to an audio capability interface
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LPAPPCAPPIF m_pAudAppCaps;
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// @cmember Pointer to an video capability interface
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LPAPPVIDCAPPIF m_pVidAppCaps;
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};
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/*
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* Globals
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*/
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EXTERN_C HANDLE g_hMutex;
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EXTERN_C class CInstallCodecs *g_pIC;
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/*
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* Function prototypes
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*/
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#include <poppack.h> /* End byte packing */
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