inputpin.c

linux下的MPEG1

#include "inputpin.h"
#include "../wine/winerror.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

static inline int unimplemented(const char* s, void* p)
{
    Debug printf("%s(%p) called (UNIMPLEMENTED)", s, p);
    return E_NOTIMPL;
}

/***********
 * EnumPins
 ***********/

typedef struct
{
    IEnumPins_vt* vt;
    DECLARE_IUNKNOWN();
    IPin* pin1;
    IPin* pin2;
    int counter;
    GUID interfaces[2];
} CEnumPins;

static long STDCALL CEnumPins_Next(IEnumPins* This,
				   /* [in] */ unsigned long cMediaTypes,
				   /* [size_is][out] */ IPin** ppMediaTypes,
				   /* [out] */ unsigned long* pcFetched)
{
    CEnumPins* pin = (CEnumPins*)This;

    Debug printf("CEnumPins_Next(%p) called\n", This);
    if (!ppMediaTypes)
	return E_INVALIDARG;
    if (!pcFetched && (cMediaTypes!=1))
	return E_INVALIDARG;
    if (cMediaTypes<=0)
	return 0;

    //lcounter = ((CEnumPins*)This)->counter;
    //lpin1 = ((CEnumPins*)This)->pin1;
    //lpin2 = ((CEnumPins*)This)->pin2;
    if (((pin->counter == 2) && pin->pin2)
	|| ((pin->counter == 1) && !pin->pin2))
    {
	if (pcFetched)
	    *pcFetched=0;
	return 1;
    }

    if (pcFetched)
	*pcFetched=1;
    if (pin->counter==0)
    {
	*ppMediaTypes = pin->pin1;
	pin->pin1->vt->AddRef((IUnknown*)pin->pin1);
    }
    else
    {
	*ppMediaTypes = pin->pin2;
	pin->pin2->vt->AddRef((IUnknown*)pin->pin2);
    }
    pin->counter++;
    if (cMediaTypes == 1)
	return 0;
    return 1;
}

static long STDCALL CEnumPins_Skip(IEnumPins* This,
				   /* [in] */ unsigned long cMediaTypes)
{
    Debug unimplemented("CEnumPins_Skip", This);
    return E_NOTIMPL;
}

static long STDCALL CEnumPins_Reset(IEnumPins* This)
{
    Debug printf("CEnumPins_Reset(%p) called\n", This);
    ((CEnumPins*)This)->counter = 0;
    return 0;
}

static long STDCALL CEnumPins_Clone(IEnumPins* This,
				    /* [out] */ IEnumPins** ppEnum)
{
    Debug unimplemented("CEnumPins_Clone", This);
    return E_NOTIMPL;
}

static void CEnumPins_Destroy(CEnumPins* This)
{
    free(This->vt);
    free(This);
}

IMPLEMENT_IUNKNOWN(CEnumPins)

static CEnumPins* CEnumPinsCreate(IPin* p, IPin* pp)
{
    CEnumPins* This = (CEnumPins*) malloc(sizeof(CEnumPins));

    if (!This)
        return NULL;

    This->refcount = 1;
    This->pin1 = p;
    This->pin2 = pp;
    This->counter = 0;

    This->vt = (IEnumPins_vt*) malloc(sizeof(IEnumPins_vt));
    if (!This->vt)
    {
	free(This);
        return NULL;
    }
    This->vt->QueryInterface = CEnumPins_QueryInterface;
    This->vt->AddRef = CEnumPins_AddRef;
    This->vt->Release = CEnumPins_Release;
    This->vt->Next = CEnumPins_Next;
    This->vt->Skip = CEnumPins_Skip;
    This->vt->Reset = CEnumPins_Reset;
    This->vt->Clone = CEnumPins_Clone;

    This->interfaces[0] = IID_IUnknown;
    This->interfaces[1] = IID_IEnumPins;

    return This;
}



/***********
 * InputPin
 ***********/

static long STDCALL CInputPin_Connect(IPin* This,
				      /* [in] */ IPin* pReceivePin,
				      /* [in] */ AM_MEDIA_TYPE* pmt)
{
    Debug unimplemented("CInputPin_Connect", This);
    return E_NOTIMPL;
}

static long STDCALL CInputPin_ReceiveConnection(IPin* This,
						/* [in] */ IPin* pConnector,
						/* [in] */ const AM_MEDIA_TYPE *pmt)
{
    Debug unimplemented("CInputPin_ReceiveConnection", This);
    return E_NOTIMPL;
}

static long STDCALL CInputPin_Disconnect(IPin* This)
{
    Debug unimplemented("CInputPin_Disconnect", This);
    return E_NOTIMPL;
}

static long STDCALL CInputPin_ConnectedTo(IPin* This,
					  /* [out] */ IPin** pPin)
{
    Debug unimplemented("CInputPin_ConnectedTo", This);
    return E_NOTIMPL;
}

static long STDCALL CInputPin_ConnectionMediaType(IPin* This,
						  /* [out] */ AM_MEDIA_TYPE *pmt)
{
    Debug printf("CInputPin_ConnectionMediaType(%p) called\n", This);
    if (!pmt)
	return E_INVALIDARG;
    *pmt=((CInputPin*)This)->type;
    if (pmt->cbFormat > 0)
    {
	pmt->pbFormat=(char *)CoTaskMemAlloc(pmt->cbFormat);
	memcpy(pmt->pbFormat, ((CInputPin*)This)->type.pbFormat, pmt->cbFormat);
    }
    return 0;
}

static long STDCALL CInputPin_QueryPinInfo(IPin* This,
					   /* [out] */ PIN_INFO *pInfo)
{
    CBaseFilter* lparent=((CInputPin*)This)->parent;
    Debug printf("CInputPin_QueryPinInfo(%p) called\n", This);
    pInfo->dir = PINDIR_OUTPUT;
    pInfo->pFilter = (IBaseFilter*) lparent;
    lparent->vt->AddRef((IUnknown*)lparent);
    pInfo->achName[0] = 0;
    return 0;
}

static long STDCALL CInputPin_QueryDirection(IPin* This,
					      /* [out] */ PIN_DIRECTION *pPinDir)
{
    *pPinDir = PINDIR_OUTPUT;
    Debug printf("CInputPin_QueryDirection(%p) called\n", This);
    return 0;
}

static long STDCALL CInputPin_QueryId(IPin* This,
				       /* [out] */ unsigned short* *Id)
{
    Debug unimplemented("CInputPin_QueryId", This);
    return E_NOTIMPL;
}

static long STDCALL CInputPin_QueryAccept(IPin* This,
					  /* [in] */ const AM_MEDIA_TYPE* pmt)
{
    Debug unimplemented("CInputPin_QueryAccept", This);
    return E_NOTIMPL;
}

static long STDCALL CInputPin_EnumMediaTypes(IPin* This,
					     /* [out] */ IEnumMediaTypes** ppEnum)
{
    Debug unimplemented("CInputPin_EnumMediaTypes", This);
    return E_NOTIMPL;
}

static long STDCALL CInputPin_QueryInternalConnections(IPin* This,
						       /* [out] */ IPin** apPin,
						       /* [out][in] */ unsigned long *nPin)
{
    Debug unimplemented("CInputPin_QueryInternalConnections", This);
    return E_NOTIMPL;
}

static long STDCALL CInputPin_EndOfStream(IPin * This)
{
    Debug unimplemented("CInputPin_EndOfStream", This);
    return E_NOTIMPL;
}


static long STDCALL CInputPin_BeginFlush(IPin * This)
{
    Debug unimplemented("CInputPin_BeginFlush", This);
    return E_NOTIMPL;
}


static long STDCALL CInputPin_EndFlush(IPin* This)
{
    Debug unimplemented("CInputPin_EndFlush", This);
    return E_NOTIMPL;
}

static long STDCALL CInputPin_NewSegment(IPin* This,
					  /* [in] */ REFERENCE_TIME tStart,
					  /* [in] */ REFERENCE_TIME tStop,
					  /* [in] */ double dRate)
{
    Debug unimplemented("CInputPin_NewSegment", This);
    return E_NOTIMPL;
}

static void CInputPin_Destroy(CInputPin* This)
{
    free(This->vt);
    free(This);
}

IMPLEMENT_IUNKNOWN(CInputPin)

CInputPin* CInputPinCreate(CBaseFilter* p, const AM_MEDIA_TYPE* amt)
{
    CInputPin* This = (CInputPin*) malloc(sizeof(CInputPin));

    if (!This)
        return NULL;

    This->refcount = 1;
    This->parent = p;
    This->type = *amt;

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

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

    This->vt->QueryInterface = CInputPin_QueryInterface;
    This->vt->AddRef = CInputPin_AddRef;
    This->vt->Release = CInputPin_Release;
    This->vt->Connect = CInputPin_Connect;
    This->vt->ReceiveConnection = CInputPin_ReceiveConnection;
    This->vt->Disconnect = CInputPin_Disconnect;
    This->vt->ConnectedTo = CInputPin_ConnectedTo;
    This->vt->ConnectionMediaType = CInputPin_ConnectionMediaType;
    This->vt->QueryPinInfo = CInputPin_QueryPinInfo;
    This->vt->QueryDirection = CInputPin_QueryDirection;
    This->vt->QueryId = CInputPin_QueryId;
    This->vt->QueryAccept = CInputPin_QueryAccept;
    This->vt->EnumMediaTypes = CInputPin_EnumMediaTypes;
    This->vt->QueryInternalConnections = CInputPin_QueryInternalConnections;
    This->vt->EndOfStream = CInputPin_EndOfStream;
    This->vt->BeginFlush = CInputPin_BeginFlush;
    This->vt->EndFlush = CInputPin_EndFlush;
    This->vt->NewSegment = CInputPin_NewSegment;

    This->interfaces[0]=IID_IUnknown;

    return This;
}


/*************
 * BaseFilter
 *************/

static long STDCALL CBaseFilter_GetClassID(IBaseFilter * This,
					   /* [out] */ CLSID *pClassID)
{
    Debug unimplemented("CBaseFilter_GetClassID", This);
    return E_NOTIMPL;
}

static long STDCALL CBaseFilter_Stop(IBaseFilter* This)
{
    Debug unimplemented("CBaseFilter_Stop", This);
    return E_NOTIMPL;
}

static long STDCALL CBaseFilter_Pause(IBaseFilter* This)
{
    Debug unimplemented("CBaseFilter_Pause", This);
    return E_NOTIMPL;
}

static long STDCALL CBaseFilter_Run(IBaseFilter* This, REFERENCE_TIME tStart)
{
    Debug unimplemented("CBaseFilter_Run", This);
    return E_NOTIMPL;
}

static long STDCALL CBaseFilter_GetState(IBaseFilter* This,
					 /* [in] */ unsigned long dwMilliSecsTimeout,
					 // /* [out] */ FILTER_STATE *State)
					 void* State)
{
    Debug unimplemented("CBaseFilter_GetState", This);
    return E_NOTIMPL;
}

static long STDCALL CBaseFilter_SetSyncSource(IBaseFilter* This,
					      /* [in] */ IReferenceClock *pClock)
{
    Debug unimplemented("CBaseFilter_SetSyncSource", This);
    return E_NOTIMPL;
}

static long STDCALL CBaseFilter_GetSyncSource(IBaseFilter* This,
					      /* [out] */ IReferenceClock **pClock)
{
    Debug unimplemented("CBaseFilter_GetSyncSource", This);
    return E_NOTIMPL;
}


static long STDCALL CBaseFilter_EnumPins(IBaseFilter* This,
					 /* [out] */ IEnumPins **ppEnum)
{
    Debug printf("CBaseFilter_EnumPins(%p) called\n", This);
    *ppEnum = (IEnumPins*) CEnumPinsCreate(((CBaseFilter*)This)->pin, ((CBaseFilter*)This)->unused_pin);
    return 0;
}

static long STDCALL CBaseFilter_FindPin(IBaseFilter* This,
					/* [string][in] */ const unsigned short* Id,
					/* [out] */ IPin **ppPin)
{
    Debug unimplemented("CBaseFilter_FindPin\n", This);
    return E_NOTIMPL;
}

static long STDCALL CBaseFilter_QueryFilterInfo(IBaseFilter* This,
						// /* [out] */ FILTER_INFO *pInfo)
						void* pInfo)
{
    Debug unimplemented("CBaseFilter_QueryFilterInfo", This);
    return E_NOTIMPL;
}

static long STDCALL CBaseFilter_JoinFilterGraph(IBaseFilter* This,
						/* [in] */ IFilterGraph* pGraph,
						/* [string][in] */ const unsigned short* pName)