inputpin.c

mplayer播放器的源码

}


/**
 * \brief IMediaFilter::GetState (retrieves the filter's state (running, stopped or paused))
 *
 * \param[in] This pointer to IBaseFilter interface
 * \param[in] dwMilliSecsTimeout Timeout interval in milliseconds. To block indifinitely pass
 *            INFINITE.
 * \param[out] State pointer to variable that receives a member of FILTER_STATE enumeration.
 *
 * \return S_OK success
 * \return E_POINTER Null pointer
 * \return VFW_S_STATE_INTERMEDATE Intermediate state
 * \return VFW_S_CANT_CUE The filter is active, but cannot deliver data.
 *
 */
static long STDCALL CBaseFilter2_GetState(IBaseFilter* This,
					  /* [in] */ unsigned long dwMilliSecsTimeout,
					  // /* [out] */ FILTER_STATE *State)
					  void* State)
{
    Debug unimplemented("CBaseFilter2_GetState", This);
    return E_NOTIMPL;
}

/**
 * \brief IMediaFilter::SetSyncSource (sets the reference clock)
 *
 * \param[in] This pointer to IBaseFilter interface
 * \param[in] pClock IReferenceClock interface of reference clock
 *
 * \return S_OK success
 * \return apripriate error otherwise
 *
 */
static long STDCALL CBaseFilter2_SetSyncSource(IBaseFilter* This,
					       /* [in] */ IReferenceClock* pClock)
{
    Debug unimplemented("CBaseFilter2_SetSyncSource", This);
    return E_NOTIMPL;
}

/**
 * \brief IMediafilter::GetSyncSource (gets current reference clock)
 *
 * \param[in] This pointer to IBaseFilter interface
 * \param[out] pClock address of variable that receives pointer to clock's 
 *  IReferenceClock interface 
 *
 * \return S_OK success
 * \return E_POINTER Null pointer
 *
 */
static long STDCALL CBaseFilter2_GetSyncSource(IBaseFilter* This,
					       /* [out] */ IReferenceClock** pClock)
{
    Debug unimplemented("CBaseFilter2_GetSyncSource", This);
    return E_NOTIMPL;
}

/**
 * \brief IBaseFilter::EnumPins (enumerates the pins of this filter)
 *
 * \param[in] This pointer to IBaseFilter interface
 * \param[out] ppEnum address of variable that receives pointer to IEnumPins interface
 *
 * \return S_OK success
 * \return E_OUTOFMEMORY Insufficient memory
 * \return E_POINTER Null pointer
 *
 */
static long STDCALL CBaseFilter2_EnumPins(IBaseFilter* This,
					  /* [out] */ IEnumPins** ppEnum)
{
    Debug printf("CBaseFilter2_EnumPins(%p) called\n", This);
    *ppEnum = (IEnumPins*) CEnumPinsCreate(((CBaseFilter2*)This)->pin, 0);
    return 0;
}

/**
 * \brief IBaseFilter::FindPin (retrieves the pin with specified id)
 *
 * \param[in] This pointer to IBaseFilter interface
 * \param[in] Id  constant wide string, containing pin id
 * \param[out] ppPin address of variable that receives pointer to pin's IPin interface
 *
 * \return S_OK success
 * \return E_POINTER Null pointer
 * \return VFW_E_NOT_FOUND Could not find a pin with specified id
 *
 * \note
 * Be sure to release the interface after use.
 *
 */
static long STDCALL CBaseFilter2_FindPin(IBaseFilter* This,
					 /* [string][in] */ const unsigned short* Id,
					 /* [out] */ IPin** ppPin)
{
    Debug unimplemented("CBaseFilter2_FindPin", This);
    return E_NOTIMPL;
}

/**
 * \brief IBaseFilter::QueryFilterInfo (retrieves information aboud the filter)
 *
 * \param[in] This pointer to IBaseFilter interface
 * \param[out] pInfo pointer to FILTER_INFO structure
 *
 * \return S_OK success
 * \return E_POINTER Null pointer
 *
 * \note
 * If pGraph member of FILTER_INFO is not NULL, be sure to release IFilterGraph interface after use.
 *
 */
static long STDCALL CBaseFilter2_QueryFilterInfo(IBaseFilter* This,
						 // /* [out] */ FILTER_INFO *pInfo)
						 void* pInfo)
{
    Debug unimplemented("CBaseFilter2_QueryFilterInfo", This);
    return E_NOTIMPL;
}

/**
 * \brief IBaseFilter::JoinFilterGraph (notifies the filter that it has joined of left filter graph)
 *
 * \param[in] This pointer to IBaseFilter interface
 * \param[in] pInfo pointer to graph's IFilterGraph interface or NULL if filter is leaving graph
 * \param[in] pName pointer to wide character string that specifies a name for the filter
 *
 * \return S_OK success
 * \return apropriate error code otherwise
 *
 * \remarks
 * Filter should not call to graph's AddRef method.
 * The IFilterGraph is guaranteed to be valid until graph manager calls this method again with 
 * the value NULL.
 *
 */
static long STDCALL CBaseFilter2_JoinFilterGraph(IBaseFilter* This,
						 /* [in] */ IFilterGraph* pGraph,
						 /* [string][in] */
						  const unsigned short* pName)
{
    Debug unimplemented("CBaseFilter2_JoinFilterGraph", This);
    return E_NOTIMPL;
}

/**
 * \brief IBaseFilter::QueryVendorInfo (retrieves a string containing vendor info)
 *
 * \param[in] This pointer to IBaseFilter interface
 * \param[out] address of variable that receives pointer to a string containing vendor info
 *
 * \return S_OK success
 * \return E_POINTER Null pointer
 * \return E_NOTIMPL Not implemented
 *
 * \remarks
 * Call to CoTaskMemFree to free memory allocated for string
 *
 */
static long STDCALL CBaseFilter2_QueryVendorInfo(IBaseFilter* This,
						 /* [string][out] */
						 unsigned short** pVendorInfo)
{
    Debug unimplemented("CBaseFilter2_QueryVendorInfo", This);
    return E_NOTIMPL;
}

/**
 * \brief CBaseFilter2::GetPin (gets used pin)
 *
 * \param[in] This pointer to CBaseFilter2 object
 *
 * \return pointer to used pin's IPin interface
 *
 */
static IPin* CBaseFilter2_GetPin(CBaseFilter2* This)
{
    return This->pin;
}

/**
 * \brief CBaseFilter2 destructor
 *
 * \param[in] This pointer to CBaseFilter2 object
 *
 */
static void CBaseFilter2_Destroy(CBaseFilter2* This)
{
    Debug printf("CBaseFilter2_Destroy(%p) called\n", This);
    if (This->pin)
	This->pin->vt->Release((IUnknown*) This->pin);
    if (This->vt)
	free(This->vt);
    free(This);
}

IMPLEMENT_IUNKNOWN(CBaseFilter2)

static GUID CBaseFilter2_interf1 =
{0x76c61a30, 0xebe1, 0x11cf, {0x89, 0xf9, 0x00, 0xa0, 0xc9, 0x03, 0x49, 0xcb}};
/// IID_IAMNetShowPreroll
static GUID CBaseFilter2_interf2 =
{0xaae7e4e2, 0x6388, 0x11d1, {0x8d, 0x93, 0x00, 0x60, 0x97, 0xc9, 0xa2, 0xb2}};
/// IID_IAMRebuild
static GUID CBaseFilter2_interf3 =
{0x02ef04dd, 0x7580, 0x11d1, {0xbe, 0xce, 0x00, 0xc0, 0x4f, 0xb6, 0xe9, 0x37}};

/**
 * \brief CBaseFilter2 constructor
 *
 * \return pointer to CBaseFilter2 object or NULL if error occured
 *
 */
CBaseFilter2* CBaseFilter2Create()
{
    CBaseFilter2* This = (CBaseFilter2*) malloc(sizeof(CBaseFilter2));

    if (!This)
	return NULL;

    This->refcount = 1;
    This->pin = (IPin*) CRemotePin2Create(This);

    This->vt = (IBaseFilter_vt*) malloc(sizeof(IBaseFilter_vt));

    if (!This->pin || !This->vt)
    {
	CBaseFilter2_Destroy(This);
        return NULL;
    }

    memset(This->vt, 0, sizeof(IBaseFilter_vt));
    This->vt->QueryInterface = CBaseFilter2_QueryInterface;
    This->vt->AddRef = CBaseFilter2_AddRef;
    This->vt->Release = CBaseFilter2_Release;
    This->vt->GetClassID = CBaseFilter2_GetClassID;
    This->vt->Stop = CBaseFilter2_Stop;
    This->vt->Pause = CBaseFilter2_Pause;
    This->vt->Run = CBaseFilter2_Run;
    This->vt->GetState = CBaseFilter2_GetState;
    This->vt->SetSyncSource = CBaseFilter2_SetSyncSource;
    This->vt->GetSyncSource = CBaseFilter2_GetSyncSource;
    This->vt->EnumPins = CBaseFilter2_EnumPins;
    This->vt->FindPin = CBaseFilter2_FindPin;
    This->vt->QueryFilterInfo = CBaseFilter2_QueryFilterInfo;
    This->vt->JoinFilterGraph = CBaseFilter2_JoinFilterGraph;
    This->vt->QueryVendorInfo = CBaseFilter2_QueryVendorInfo;

    This->GetPin = CBaseFilter2_GetPin;

    This->interfaces[0] = IID_IUnknown;
    This->interfaces[1] = IID_IBaseFilter;
    This->interfaces[2] = CBaseFilter2_interf1;
    This->interfaces[3] = CBaseFilter2_interf2;
    This->interfaces[4] = CBaseFilter2_interf3;

    return This;
}


/*************
 * CRemotePin
 *************/


/**
 * \brief IPin::ConnectedTo (retrieves pointer to the connected pin, if such exist)
 *
 * \param[in]  This pointer to IPin interface
 * \param[out] pPin pointer to remote pin's IPin interface
 *
 * \return S_OK - success
 * \return E_POINTER - Null pointer
 * \return VFW_E_NOT_CONNECTED - pin is not connected
 *
 * \note
 * Caller must call Release on received IPin, when done
 */
static long STDCALL CRemotePin_ConnectedTo(IPin* This, /* [out] */ IPin** pPin)
{
    Debug printf("CRemotePin_ConnectedTo(%p) called\n", This);
    if (!pPin)
	return E_INVALIDARG;
    *pPin = ((CRemotePin*)This)->remote_pin;
    (*pPin)->vt->AddRef((IUnknown*)(*pPin));
    return 0;
}

/**
 * \brief IPin::QueryDirection (retrieves pin direction)
 *
 * \param[in]  This    pointer to IPin interface
 * \param[out] pPinDir pointer to variable, that receives pin direction (PINDIR_INPUT,PINDIR_OUTPUT)
 *
 * \return S_OK - success
 * \return E_POINTER - Null pointer
 *
 */
static long STDCALL CRemotePin_QueryDirection(IPin* This,
					      /* [out] */ PIN_DIRECTION* pPinDir)
{
    Debug printf("CRemotePin_QueryDirection(%p) called\n", This);
    if (!pPinDir)
	return E_INVALIDARG;
    *pPinDir=PINDIR_INPUT;
    return 0;
}

/**
 * \brief IPin::ConnectionMediaType (retrieves media type for connection, if such exist)
 *
 * \param[in]  This pointer to IPin interface
 * \param[out] pmt pointer to AM_MEDIA_TYPE,  that receives connection media type
 *
 * \return S_OK - success
 * \return E_POINTER - Null pointer
 * \return VFW_E_NOT_CONNECTED - pin is not connected
 *
 */
static long STDCALL CRemotePin_ConnectionMediaType(IPin* This, /* [out] */ AM_MEDIA_TYPE* pmt)
{
    Debug unimplemented("CRemotePin_ConnectionMediaType", This);
    return E_NOTIMPL;
}

/**
 * \brief IPin::QueryPinInfo (retrieves information about the pin)
 *
 * \param[in]  This  pointer to IPin interface
 * \param[out] pInfo pointer to PIN_INFO structure, that receives pin info
 *
 * \return S_OK - success
 * \return E_POINTER - Null pointer
 *
 * \note
 * If pInfo->pFilter is not NULL, then caller must call Release on pInfo->pFilter when done
 *
 */
static long STDCALL CRemotePin_QueryPinInfo(IPin* This, /* [out] */ PIN_INFO* pInfo)
{
    CBaseFilter* lparent = ((CRemotePin*)This)->parent;
    Debug printf("CRemotePin_QueryPinInfo(%p) called\n", This);
    pInfo->dir= PINDIR_INPUT;
    pInfo->pFilter = (IBaseFilter*) lparent;
    lparent->vt->AddRef((IUnknown*)lparent);
    pInfo->achName[0]=0;
    return 0;
}

/**
 * \brief CRemotePin destructor
 *
 * \param[in] This pointer to CRemotePin object
 *
 */
static void CRemotePin_Destroy(CRemotePin* This)
{
    Debug printf("CRemotePin_Destroy(%p) called\n", This);
    free(This->vt);
    free(This);
}

IMPLEMENT_IUNKNOWN(CRemotePin)

/**
 * \brief CRemotePin constructor
 *
 * \param[in] pt parent filter
 * \param[in] rpin remote pin
 *
 * \return pointer to CRemotePin or NULL if error occured
 *
 */
CRemotePin* CRemotePinCreate(CBaseFilter* pt, IPin* rpin)
{
    CRemotePin* This = (CRemotePin*) malloc(sizeof(CRemotePin));

    if (!This)
        return NULL;

    Debug printf("CRemotePinCreate() called -> %p\n", This);

    This->parent = pt;
    This->remote_pin = rpin;
    This->refcount = 1;

    This->vt = (IPin_vt*) malloc(sizeof(IPin_vt));

    if (!This->vt)
    {
	free(This);
	return NULL;
    }

    memset(This->vt, 0, sizeof(IPin_vt));
    This->vt->QueryInterface = CRemotePin_QueryInterface;
    This->vt->AddRef = CRemotePin_AddRef;
    This->vt->Release = CRemotePin_Release;
    This->vt->QueryDirection = CRemotePin_QueryDirection;
    This->vt->ConnectedTo = CRemotePin_ConnectedTo;
    This->vt->ConnectionMediaType = CRemotePin_ConnectionMediaType;
    This->vt->QueryPinInfo = CRemotePin_QueryPinInfo;

    This->interfaces[0] = IID_IUnknown;

    return This;
}


/*************
 * CRemotePin2
 *************/


/**
 * \brief IPin::QueryPinInfo (retrieves information about the pin)
 *
 * \param[in]  This  pointer to IPin interface
 * \param[out] pInfo pointer to PIN_INFO structure, that receives pin info
 *
 * \return S_OK - success
 * \return E_POINTER - Null pointer
 *
 * \note
 * If pInfo->pFilter is not NULL, then caller must call Release on pInfo->pFilter when done
 *
 */
static long STDCALL CRemotePin2_QueryPinInfo(IPin* This,
					     /* [out] */ PIN_INFO* pInfo)
{
    CBaseFilter2* lparent=((CRemotePin2*)This)->parent;
    Debug printf("CRemotePin2_QueryPinInfo(%p) called\n", This);
    pInfo->pFilter=(IBaseFilter*)lparent;
    lparent->vt->AddRef((IUnknown*)lparent);
    pInfo->dir=PINDIR_OUTPUT;
    pInfo->achName[0]=0;
    return 0;
}

/**
 * \brief CremotePin2 destructor
 *
 * \param This pointer to CRemotePin2 object
 *
 *  FIXME - not being released!
 */
static void CRemotePin2_Destroy(CRemotePin2* This)
{
    Debug printf("CRemotePin2_Destroy(%p) called\n", This);
    free(This->vt);
    free(This);
}

IMPLEMENT_IUNKNOWN(CRemotePin2)

/**
 * \brief CRemotePin2 contructor
 *
 * \param[in] p pointer to parent CBaseFilter2 object
 *
 * \return pointer to CRemotePin2 object or NULL if error occured
 *
 */
CRemotePin2* CRemotePin2Create(CBaseFilter2* p)
{
    CRemotePin2* This = (CRemotePin2*) malloc(sizeof(CRemotePin2));

    if (!This)
        return NULL;

    Debug printf("CRemotePin2Create() called -> %p\n", This);

    This->parent = p;
    This->refcount = 1;

    This->vt = (IPin_vt*) malloc(sizeof(IPin_vt));

    if (!This->vt)
    {
	free(This);
        return NULL;
    }

    memset(This->vt, 0, sizeof(IPin_vt));
    This->vt->QueryInterface = CRemotePin2_QueryInterface;
    This->vt->AddRef = CRemotePin2_AddRef;
    This->vt->Release = CRemotePin2_Release;
    This->vt->QueryPinInfo = CRemotePin2_QueryPinInfo;

    This->interfaces[0] = IID_IUnknown;

    return This;
}