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Sweden-Number/dlls/strmbase/pin.c

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/*
* Generic Implementation of IPin Interface
*
* Copyright 2003 Robert Shearman
* Copyright 2010 Aric Stewart, CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define COBJMACROS
#include "dshow.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "wine/strmbase.h"
#include "uuids.h"
#include "vfwmsgs.h"
#include <assert.h>
WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
static const IPinVtbl InputPin_Vtbl;
static const IPinVtbl OutputPin_Vtbl;
static const IMemInputPinVtbl MemInputPin_Vtbl;
typedef HRESULT (*SendPinFunc)( IPin *to, LPVOID arg );
static inline BasePin *impl_from_IPin( IPin *iface )
{
return CONTAINING_RECORD(iface, BasePin, IPin_iface);
}
/** Helper function, there are a lot of places where the error code is inherited
* The following rules apply:
*
* Return the first received error code (E_NOTIMPL is ignored)
* If no errors occur: return the first received non-error-code that isn't S_OK
*/
static HRESULT updatehres( HRESULT original, HRESULT new )
{
if (FAILED( original ) || new == E_NOTIMPL)
return original;
if (FAILED( new ) || original == S_OK)
return new;
return original;
}
/** Sends a message from a pin further to other, similar pins
* fnMiddle is called on each pin found further on the stream.
* fnEnd (can be NULL) is called when the message can't be sent any further (this is a renderer or source)
*
* If the pin given is an input pin, the message will be sent downstream to other input pins
* If the pin given is an output pin, the message will be sent upstream to other output pins
*/
static HRESULT SendFurther( IPin *from, SendPinFunc fnMiddle, LPVOID arg, SendPinFunc fnEnd )
{
PIN_INFO pin_info;
ULONG amount = 0;
HRESULT hr = S_OK;
HRESULT hr_return = S_OK;
IEnumPins *enumpins = NULL;
BOOL foundend = TRUE;
PIN_DIRECTION from_dir;
IPin_QueryDirection( from, &from_dir );
hr = IPin_QueryInternalConnections( from, NULL, &amount );
if (hr != E_NOTIMPL && amount)
FIXME("Use QueryInternalConnections!\n");
hr = S_OK;
pin_info.pFilter = NULL;
hr = IPin_QueryPinInfo( from, &pin_info );
if (FAILED(hr))
goto out;
hr = IBaseFilter_EnumPins( pin_info.pFilter, &enumpins );
if (FAILED(hr))
goto out;
hr = IEnumPins_Reset( enumpins );
while (hr == S_OK) {
IPin *pin = NULL;
hr = IEnumPins_Next( enumpins, 1, &pin, NULL );
if (hr == VFW_E_ENUM_OUT_OF_SYNC)
{
hr = IEnumPins_Reset( enumpins );
continue;
}
if (pin)
{
PIN_DIRECTION dir;
IPin_QueryDirection( pin, &dir );
if (dir != from_dir)
{
IPin *connected = NULL;
foundend = FALSE;
IPin_ConnectedTo( pin, &connected );
if (connected)
{
HRESULT hr_local;
hr_local = fnMiddle( connected, arg );
hr_return = updatehres( hr_return, hr_local );
IPin_Release(connected);
}
}
IPin_Release( pin );
}
else
{
hr = S_OK;
break;
}
}
if (!foundend)
hr = hr_return;
else if (fnEnd) {
HRESULT hr_local;
hr_local = fnEnd( from, arg );
hr_return = updatehres( hr_return, hr_local );
}
IEnumPins_Release(enumpins);
out:
if (pin_info.pFilter)
IBaseFilter_Release( pin_info.pFilter );
return hr;
}
static void Copy_PinInfo(PIN_INFO * pDest, const PIN_INFO * pSrc)
{
/* Tempting to just do a memcpy, but the name field is
128 characters long! We will probably never exceed 10
most of the time, so we are better off copying
each field manually */
strcpyW(pDest->achName, pSrc->achName);
pDest->dir = pSrc->dir;
pDest->pFilter = pSrc->pFilter;
}
static void dump_AM_MEDIA_TYPE(const AM_MEDIA_TYPE * pmt)
{
if (!pmt)
return;
TRACE("\t%s\n\t%s\n\t...\n\t%s\n", debugstr_guid(&pmt->majortype), debugstr_guid(&pmt->subtype), debugstr_guid(&pmt->formattype));
}
static BOOL CompareMediaTypes(const AM_MEDIA_TYPE * pmt1, const AM_MEDIA_TYPE * pmt2, BOOL bWildcards)
{
TRACE("pmt1: ");
dump_AM_MEDIA_TYPE(pmt1);
TRACE("pmt2: ");
dump_AM_MEDIA_TYPE(pmt2);
return (((bWildcards && (IsEqualGUID(&pmt1->majortype, &GUID_NULL) || IsEqualGUID(&pmt2->majortype, &GUID_NULL))) || IsEqualGUID(&pmt1->majortype, &pmt2->majortype)) &&
((bWildcards && (IsEqualGUID(&pmt1->subtype, &GUID_NULL) || IsEqualGUID(&pmt2->subtype, &GUID_NULL))) || IsEqualGUID(&pmt1->subtype, &pmt2->subtype)));
}
/*** Common Base Pin function */
HRESULT WINAPI BasePinImpl_GetMediaType(BasePin *iface, int iPosition, AM_MEDIA_TYPE *pmt)
{
if (iPosition < 0)
return E_INVALIDARG;
return VFW_S_NO_MORE_ITEMS;
}
LONG WINAPI BasePinImpl_GetMediaTypeVersion(BasePin *iface)
{
return 1;
}
ULONG WINAPI BasePinImpl_AddRef(IPin * iface)
{
BasePin *This = impl_from_IPin(iface);
ULONG refCount = InterlockedIncrement(&This->refCount);
TRACE("(%p)->() AddRef from %d\n", iface, refCount - 1);
return refCount;
}
HRESULT WINAPI BasePinImpl_Disconnect(IPin * iface)
{
HRESULT hr;
BasePin *This = impl_from_IPin(iface);
TRACE("()\n");
EnterCriticalSection(This->pCritSec);
{
if (This->pConnectedTo)
{
IPin_Release(This->pConnectedTo);
This->pConnectedTo = NULL;
FreeMediaType(&This->mtCurrent);
ZeroMemory(&This->mtCurrent, sizeof(This->mtCurrent));
hr = S_OK;
}
else
hr = S_FALSE;
}
LeaveCriticalSection(This->pCritSec);
return hr;
}
HRESULT WINAPI BasePinImpl_ConnectedTo(IPin * iface, IPin ** ppPin)
{
HRESULT hr;
BasePin *This = impl_from_IPin(iface);
TRACE("(%p)\n", ppPin);
EnterCriticalSection(This->pCritSec);
{
if (This->pConnectedTo)
{
*ppPin = This->pConnectedTo;
IPin_AddRef(*ppPin);
hr = S_OK;
}
else
{
hr = VFW_E_NOT_CONNECTED;
*ppPin = NULL;
}
}
LeaveCriticalSection(This->pCritSec);
return hr;
}
HRESULT WINAPI BasePinImpl_ConnectionMediaType(IPin * iface, AM_MEDIA_TYPE * pmt)
{
HRESULT hr;
BasePin *This = impl_from_IPin(iface);
TRACE("(%p/%p)->(%p)\n", This, iface, pmt);
EnterCriticalSection(This->pCritSec);
{
if (This->pConnectedTo)
{
CopyMediaType(pmt, &This->mtCurrent);
hr = S_OK;
}
else
{
ZeroMemory(pmt, sizeof(*pmt));
hr = VFW_E_NOT_CONNECTED;
}
}
LeaveCriticalSection(This->pCritSec);
return hr;
}
HRESULT WINAPI BasePinImpl_QueryPinInfo(IPin * iface, PIN_INFO * pInfo)
{
BasePin *This = impl_from_IPin(iface);
TRACE("(%p/%p)->(%p)\n", This, iface, pInfo);
Copy_PinInfo(pInfo, &This->pinInfo);
IBaseFilter_AddRef(pInfo->pFilter);
return S_OK;
}
HRESULT WINAPI BasePinImpl_QueryDirection(IPin * iface, PIN_DIRECTION * pPinDir)
{
BasePin *This = impl_from_IPin(iface);
TRACE("(%p/%p)->(%p)\n", This, iface, pPinDir);
*pPinDir = This->pinInfo.dir;
return S_OK;
}
HRESULT WINAPI BasePinImpl_QueryId(IPin * iface, LPWSTR * Id)
{
BasePin *This = impl_from_IPin(iface);
TRACE("(%p/%p)->(%p)\n", This, iface, Id);
*Id = CoTaskMemAlloc((strlenW(This->pinInfo.achName) + 1) * sizeof(WCHAR));
if (!*Id)
return E_OUTOFMEMORY;
strcpyW(*Id, This->pinInfo.achName);
return S_OK;
}
HRESULT WINAPI BasePinImpl_QueryAccept(IPin * iface, const AM_MEDIA_TYPE * pmt)
{
TRACE("(%p)->(%p)\n", iface, pmt);
return S_OK;
}
HRESULT WINAPI BasePinImpl_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum)
{
BasePin *This = impl_from_IPin(iface);
TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum);
/* override this method to allow enumeration of your types */
return EnumMediaTypes_Construct(This, This->pFuncsTable->pfnGetMediaType, This->pFuncsTable->pfnGetMediaTypeVersion , ppEnum);
}
HRESULT WINAPI BasePinImpl_QueryInternalConnections(IPin * iface, IPin ** apPin, ULONG * cPin)
{
BasePin *This = impl_from_IPin(iface);
TRACE("(%p/%p)->(%p, %p)\n", This, iface, apPin, cPin);
return E_NOTIMPL; /* to tell caller that all input pins connected to all output pins */
}
HRESULT WINAPI BasePinImpl_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
{
BasePin *This = impl_from_IPin(iface);
TRACE("(%x%08x, %x%08x, %e)\n", (ULONG)(tStart >> 32), (ULONG)tStart, (ULONG)(tStop >> 32), (ULONG)tStop, dRate);
This->tStart = tStart;
This->tStop = tStop;
This->dRate = dRate;
return S_OK;
}
/*** OutputPin implementation ***/
static inline BaseOutputPin *impl_BaseOutputPin_from_IPin( IPin *iface )
{
return CONTAINING_RECORD(iface, BaseOutputPin, pin.IPin_iface);
}
static inline BaseOutputPin *impl_BaseOutputPin_from_BasePin( BasePin *iface )
{
return CONTAINING_RECORD(iface, BaseOutputPin, pin);
}
HRESULT WINAPI BaseOutputPinImpl_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
{
BaseOutputPin *This = impl_BaseOutputPin_from_IPin(iface);
TRACE("(%p/%p)->(%s, %p)\n", This, iface, debugstr_guid(riid), ppv);
*ppv = NULL;
if (IsEqualIID(riid, &IID_IUnknown))
*ppv = iface;
else if (IsEqualIID(riid, &IID_IPin))
*ppv = iface;
else if (IsEqualIID(riid, &IID_IMediaSeeking) ||
IsEqualIID(riid, &IID_IQualityControl))
{
return IBaseFilter_QueryInterface(This->pin.pinInfo.pFilter, riid, ppv);
}
if (*ppv)
{
IUnknown_AddRef((IUnknown *)(*ppv));
return S_OK;
}
FIXME("No interface for %s!\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
ULONG WINAPI BaseOutputPinImpl_Release(IPin * iface)
{
BaseOutputPin *This = impl_BaseOutputPin_from_IPin(iface);
ULONG refCount = InterlockedDecrement(&This->pin.refCount);
TRACE("(%p)->() Release from %d\n", iface, refCount + 1);
if (!refCount)
{
FreeMediaType(&This->pin.mtCurrent);
CoTaskMemFree(This);
return 0;
}
return refCount;
}
HRESULT WINAPI BaseOutputPinImpl_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
{
HRESULT hr;
BaseOutputPin *This = impl_BaseOutputPin_from_IPin(iface);
TRACE("(%p/%p)->(%p, %p)\n", This, iface, pReceivePin, pmt);
dump_AM_MEDIA_TYPE(pmt);
/* If we try to connect to ourselves, we will definitely deadlock.
* There are other cases where we could deadlock too, but this
* catches the obvious case */
assert(pReceivePin != iface);
EnterCriticalSection(This->pin.pCritSec);
{
/* if we have been a specific type to connect with, then we can either connect
* with that or fail. We cannot choose different AM_MEDIA_TYPE */
if (pmt && !IsEqualGUID(&pmt->majortype, &GUID_NULL) && !IsEqualGUID(&pmt->subtype, &GUID_NULL))
hr = This->pin.pFuncsTable->pfnAttemptConnection(&This->pin, pReceivePin, pmt);
else
{
/* negotiate media type */
IEnumMediaTypes * pEnumCandidates;
AM_MEDIA_TYPE * pmtCandidate = NULL; /* Candidate media type */
if (SUCCEEDED(hr = IPin_EnumMediaTypes(iface, &pEnumCandidates)))
{
hr = VFW_E_NO_ACCEPTABLE_TYPES; /* Assume the worst, but set to S_OK if connected successfully */
/* try this filter's media types first */
while (S_OK == IEnumMediaTypes_Next(pEnumCandidates, 1, &pmtCandidate, NULL))
{
assert(pmtCandidate);
dump_AM_MEDIA_TYPE(pmtCandidate);
if (!IsEqualGUID(&FORMAT_None, &pmtCandidate->formattype)
&& !IsEqualGUID(&GUID_NULL, &pmtCandidate->formattype))
assert(pmtCandidate->pbFormat);
if (( !pmt || CompareMediaTypes(pmt, pmtCandidate, TRUE) ) &&
(This->pin.pFuncsTable->pfnAttemptConnection(&This->pin, pReceivePin, pmtCandidate) == S_OK))
{
hr = S_OK;
DeleteMediaType(pmtCandidate);
break;
}
DeleteMediaType(pmtCandidate);
pmtCandidate = NULL;
}
IEnumMediaTypes_Release(pEnumCandidates);
}
/* then try receiver filter's media types */
if (hr != S_OK && SUCCEEDED(hr = IPin_EnumMediaTypes(pReceivePin, &pEnumCandidates))) /* if we haven't already connected successfully */
{
hr = VFW_E_NO_ACCEPTABLE_TYPES; /* Assume the worst, but set to S_OK if connected successfully */
while (S_OK == IEnumMediaTypes_Next(pEnumCandidates, 1, &pmtCandidate, NULL))
{
assert(pmtCandidate);
dump_AM_MEDIA_TYPE(pmtCandidate);
if (( !pmt || CompareMediaTypes(pmt, pmtCandidate, TRUE) ) &&
(This->pin.pFuncsTable->pfnAttemptConnection(&This->pin, pReceivePin, pmtCandidate) == S_OK))
{
hr = S_OK;
DeleteMediaType(pmtCandidate);
break;
}
DeleteMediaType(pmtCandidate);
pmtCandidate = NULL;
} /* while */
IEnumMediaTypes_Release(pEnumCandidates);
} /* if not found */
} /* if negotiate media type */
} /* if succeeded */
LeaveCriticalSection(This->pin.pCritSec);
TRACE(" -- %x\n", hr);
return hr;
}
HRESULT WINAPI BaseOutputPinImpl_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
{
ERR("Incoming connection on an output pin! (%p, %p)\n", pReceivePin, pmt);
return E_UNEXPECTED;
}
HRESULT WINAPI BaseOutputPinImpl_Disconnect(IPin * iface)
{
HRESULT hr;
BaseOutputPin *This = impl_BaseOutputPin_from_IPin(iface);
TRACE("()\n");
EnterCriticalSection(This->pin.pCritSec);
{
if (This->pMemInputPin)
{
IMemInputPin_Release(This->pMemInputPin);
This->pMemInputPin = NULL;
}
if (This->pin.pConnectedTo)
{
IPin_Release(This->pin.pConnectedTo);
This->pin.pConnectedTo = NULL;
FreeMediaType(&This->pin.mtCurrent);
ZeroMemory(&This->pin.mtCurrent, sizeof(This->pin.mtCurrent));
hr = S_OK;
}
else
hr = S_FALSE;
}
LeaveCriticalSection(This->pin.pCritSec);
return hr;
}
HRESULT WINAPI BaseOutputPinImpl_EndOfStream(IPin * iface)
{
TRACE("()\n");
/* not supposed to do anything in an output pin */
return E_UNEXPECTED;
}
HRESULT WINAPI BaseOutputPinImpl_BeginFlush(IPin * iface)
{
TRACE("(%p)->()\n", iface);
/* not supposed to do anything in an output pin */
return E_UNEXPECTED;
}
HRESULT WINAPI BaseOutputPinImpl_EndFlush(IPin * iface)
{
TRACE("(%p)->()\n", iface);
/* not supposed to do anything in an output pin */
return E_UNEXPECTED;
}
static const IPinVtbl OutputPin_Vtbl =
{
BaseOutputPinImpl_QueryInterface,
BasePinImpl_AddRef,
BaseOutputPinImpl_Release,
BaseOutputPinImpl_Connect,
BaseOutputPinImpl_ReceiveConnection,
BaseOutputPinImpl_Disconnect,
BasePinImpl_ConnectedTo,
BasePinImpl_ConnectionMediaType,
BasePinImpl_QueryPinInfo,
BasePinImpl_QueryDirection,
BasePinImpl_QueryId,
BasePinImpl_QueryAccept,
BasePinImpl_EnumMediaTypes,
BasePinImpl_QueryInternalConnections,
BaseOutputPinImpl_EndOfStream,
BaseOutputPinImpl_BeginFlush,
BaseOutputPinImpl_EndFlush,
BasePinImpl_NewSegment
};
HRESULT WINAPI BaseOutputPinImpl_GetDeliveryBuffer(BaseOutputPin *This, IMediaSample ** ppSample, REFERENCE_TIME * tStart, REFERENCE_TIME * tStop, DWORD dwFlags)
{
HRESULT hr;
TRACE("(%p, %p, %p, %x)\n", ppSample, tStart, tStop, dwFlags);
EnterCriticalSection(This->pin.pCritSec);
{
if (!This->pin.pConnectedTo)
hr = VFW_E_NOT_CONNECTED;
else
{
IMemAllocator * pAlloc = NULL;
hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pAlloc);
if (SUCCEEDED(hr))
hr = IMemAllocator_GetBuffer(pAlloc, ppSample, tStart, tStop, dwFlags);
if (SUCCEEDED(hr))
hr = IMediaSample_SetTime(*ppSample, tStart, tStop);
if (pAlloc)
IMemAllocator_Release(pAlloc);
}
}
LeaveCriticalSection(This->pin.pCritSec);
return hr;
}
/* replaces OutputPin_SendSample */
HRESULT WINAPI BaseOutputPinImpl_Deliver(BaseOutputPin *This, IMediaSample * pSample)
{
HRESULT hr = S_OK;
IMemInputPin * pMemConnected = NULL;
PIN_INFO pinInfo;
EnterCriticalSection(This->pin.pCritSec);
{
if (!This->pin.pConnectedTo || !This->pMemInputPin)
hr = VFW_E_NOT_CONNECTED;
else
{
/* we don't have the lock held when using This->pMemInputPin,
* so we need to AddRef it to stop it being deleted while we are
* using it. Same with its filter. */
pMemConnected = This->pMemInputPin;
IMemInputPin_AddRef(pMemConnected);
hr = IPin_QueryPinInfo(This->pin.pConnectedTo, &pinInfo);
}
}
LeaveCriticalSection(This->pin.pCritSec);
if (SUCCEEDED(hr))
{
/* NOTE: if we are in a critical section when Receive is called
* then it causes some problems (most notably with the native Video
* Renderer) if we are re-entered for whatever reason */
hr = IMemInputPin_Receive(pMemConnected, pSample);
/* If the filter's destroyed, tell upstream to stop sending data */
if(IBaseFilter_Release(pinInfo.pFilter) == 0 && SUCCEEDED(hr))
hr = S_FALSE;
}
if (pMemConnected)
IMemInputPin_Release(pMemConnected);
return hr;
}
/* replaces OutputPin_CommitAllocator */
HRESULT WINAPI BaseOutputPinImpl_Active(BaseOutputPin *This)
{
HRESULT hr = S_OK;
TRACE("(%p)->()\n", This);
EnterCriticalSection(This->pin.pCritSec);
{
if (!This->pin.pConnectedTo || !This->pMemInputPin)
hr = VFW_E_NOT_CONNECTED;
else
{
IMemAllocator * pAlloc = NULL;
hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pAlloc);
if (SUCCEEDED(hr))
hr = IMemAllocator_Commit(pAlloc);
if (pAlloc)
IMemAllocator_Release(pAlloc);
}
}
LeaveCriticalSection(This->pin.pCritSec);
TRACE("--> %08x\n", hr);
return hr;
}
/* replaces OutputPin_DecommitAllocator */
HRESULT WINAPI BaseOutputPinImpl_Inactive(BaseOutputPin *This)
{
HRESULT hr = S_OK;
TRACE("(%p)->()\n", This);
EnterCriticalSection(This->pin.pCritSec);
{
if (!This->pin.pConnectedTo || !This->pMemInputPin)
hr = VFW_E_NOT_CONNECTED;
else
{
IMemAllocator * pAlloc = NULL;
hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pAlloc);
if (SUCCEEDED(hr))
hr = IMemAllocator_Decommit(pAlloc);
if (pAlloc)
IMemAllocator_Release(pAlloc);
}
}
LeaveCriticalSection(This->pin.pCritSec);
TRACE("--> %08x\n", hr);
return hr;
}
/* replaces OutputPin_DeliverDisconnect */
HRESULT WINAPI BaseOutputPinImpl_BreakConnect(BaseOutputPin *This)
{
HRESULT hr;
TRACE("(%p)->()\n", This);
EnterCriticalSection(This->pin.pCritSec);
{
if (!This->pin.pConnectedTo || !This->pMemInputPin)
hr = VFW_E_NOT_CONNECTED;
else
{
IMemAllocator * pAlloc = NULL;
hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pAlloc);
if (SUCCEEDED(hr))
hr = IMemAllocator_Decommit(pAlloc);
if (pAlloc)
IMemAllocator_Release(pAlloc);
if (SUCCEEDED(hr))
hr = IPin_Disconnect(This->pin.pConnectedTo);
}
IPin_Disconnect(&This->pin.IPin_iface);
}
LeaveCriticalSection(This->pin.pCritSec);
return hr;
}
HRESULT WINAPI BaseOutputPinImpl_InitAllocator(BaseOutputPin *This, IMemAllocator **pMemAlloc)
{
return CoCreateInstance(&CLSID_MemoryAllocator, NULL, CLSCTX_INPROC_SERVER, &IID_IMemAllocator, (LPVOID*)pMemAlloc);
}
HRESULT WINAPI BaseOutputPinImpl_DecideAllocator(BaseOutputPin *This, IMemInputPin *pPin, IMemAllocator **pAlloc)
{
HRESULT hr;
hr = IMemInputPin_GetAllocator(pPin, pAlloc);
if (hr == VFW_E_NO_ALLOCATOR)
/* Input pin provides no allocator, use standard memory allocator */
hr = BaseOutputPinImpl_InitAllocator(This, pAlloc);
if (SUCCEEDED(hr))
{
ALLOCATOR_PROPERTIES rProps;
ZeroMemory(&rProps, sizeof(ALLOCATOR_PROPERTIES));
IMemInputPin_GetAllocatorRequirements(pPin, &rProps);
hr = This->pFuncsTable->pfnDecideBufferSize(This, *pAlloc, &rProps);
}
if (SUCCEEDED(hr))
hr = IMemInputPin_NotifyAllocator(pPin, *pAlloc, FALSE);
return hr;
}
/*** The Construct functions ***/
/* Function called as a helper to IPin_Connect */
/* specific AM_MEDIA_TYPE - it cannot be NULL */
HRESULT WINAPI BaseOutputPinImpl_AttemptConnection(BasePin* iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
{
BaseOutputPin *This = impl_BaseOutputPin_from_BasePin(iface);
HRESULT hr;
IMemAllocator * pMemAlloc = NULL;
TRACE("(%p, %p)\n", pReceivePin, pmt);
dump_AM_MEDIA_TYPE(pmt);
/* FIXME: call queryacceptproc */
This->pin.pConnectedTo = pReceivePin;
IPin_AddRef(pReceivePin);
CopyMediaType(&This->pin.mtCurrent, pmt);
hr = IPin_ReceiveConnection(pReceivePin, &iface->IPin_iface, pmt);
/* get the IMemInputPin interface we will use to deliver samples to the
* connected pin */
if (SUCCEEDED(hr))
{
This->pMemInputPin = NULL;
hr = IPin_QueryInterface(pReceivePin, &IID_IMemInputPin, (LPVOID)&This->pMemInputPin);
if (SUCCEEDED(hr))
{
hr = This->pFuncsTable->pfnDecideAllocator(This, This->pMemInputPin, &pMemAlloc);
if (pMemAlloc)
IMemAllocator_Release(pMemAlloc);
}
/* break connection if we couldn't get the allocator */
if (FAILED(hr))
{
if (This->pMemInputPin)
IMemInputPin_Release(This->pMemInputPin);
This->pMemInputPin = NULL;
IPin_Disconnect(pReceivePin);
}
}
if (FAILED(hr))
{
IPin_Release(This->pin.pConnectedTo);
This->pin.pConnectedTo = NULL;
FreeMediaType(&This->pin.mtCurrent);
}
TRACE(" -- %x\n", hr);
return hr;
}
static HRESULT OutputPin_Init(const IPinVtbl *OutputPin_Vtbl, const PIN_INFO * pPinInfo, const BasePinFuncTable* pBaseFuncsTable, const BaseOutputPinFuncTable* pBaseOutputFuncsTable, LPCRITICAL_SECTION pCritSec, BaseOutputPin * pPinImpl)
{
TRACE("\n");
/* Common attributes */
pPinImpl->pin.IPin_iface.lpVtbl = OutputPin_Vtbl;
pPinImpl->pin.refCount = 1;
pPinImpl->pin.pConnectedTo = NULL;
pPinImpl->pin.pCritSec = pCritSec;
pPinImpl->pin.tStart = 0;
pPinImpl->pin.tStop = 0;
pPinImpl->pin.dRate = 1.0;
Copy_PinInfo(&pPinImpl->pin.pinInfo, pPinInfo);
pPinImpl->pin.pFuncsTable = pBaseFuncsTable;
ZeroMemory(&pPinImpl->pin.mtCurrent, sizeof(AM_MEDIA_TYPE));
/* Output pin attributes */
pPinImpl->pMemInputPin = NULL;
pPinImpl->pFuncsTable = pBaseOutputFuncsTable;
return S_OK;
}
HRESULT WINAPI BaseOutputPin_Construct(const IPinVtbl *OutputPin_Vtbl, LONG outputpin_size, const PIN_INFO * pPinInfo, const BasePinFuncTable* pBaseFuncsTable, const BaseOutputPinFuncTable* pBaseOutputFuncsTable, LPCRITICAL_SECTION pCritSec, IPin ** ppPin)
{
BaseOutputPin * pPinImpl;
*ppPin = NULL;
if (pPinInfo->dir != PINDIR_OUTPUT)
{
ERR("Pin direction(%x) != PINDIR_OUTPUT\n", pPinInfo->dir);
return E_INVALIDARG;
}
assert(outputpin_size >= sizeof(BaseOutputPin));
assert(pBaseFuncsTable->pfnAttemptConnection);
pPinImpl = CoTaskMemAlloc(outputpin_size);
if (!pPinImpl)
return E_OUTOFMEMORY;
if (SUCCEEDED(OutputPin_Init(OutputPin_Vtbl, pPinInfo, pBaseFuncsTable, pBaseOutputFuncsTable, pCritSec, pPinImpl)))
{
*ppPin = &pPinImpl->pin.IPin_iface;
return S_OK;
}
CoTaskMemFree(pPinImpl);
return E_FAIL;
}
/*** Input Pin implementation ***/
static inline BaseInputPin *impl_BaseInputPin_from_IPin( IPin *iface )
{
return CONTAINING_RECORD(iface, BaseInputPin, pin.IPin_iface);
}
static inline BaseInputPin *impl_BaseInputPin_from_BasePin( BasePin *iface )
{
return CONTAINING_RECORD(iface, BaseInputPin, pin);
}
HRESULT WINAPI BaseInputPinImpl_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
{
BaseInputPin *This = impl_BaseInputPin_from_IPin(iface);
TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
*ppv = NULL;
if (IsEqualIID(riid, &IID_IUnknown))
*ppv = iface;
else if (IsEqualIID(riid, &IID_IPin))
*ppv = iface;
else if (IsEqualIID(riid, &IID_IMemInputPin))
*ppv = &This->IMemInputPin_iface;
else if (IsEqualIID(riid, &IID_IMediaSeeking))
{
return IBaseFilter_QueryInterface(This->pin.pinInfo.pFilter, &IID_IMediaSeeking, ppv);
}
if (*ppv)
{
IUnknown_AddRef((IUnknown *)(*ppv));
return S_OK;
}
FIXME("No interface for %s!\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
ULONG WINAPI BaseInputPinImpl_Release(IPin * iface)
{
BaseInputPin *This = impl_BaseInputPin_from_IPin(iface);
ULONG refCount = InterlockedDecrement(&This->pin.refCount);
TRACE("(%p)->() Release from %d\n", iface, refCount + 1);
if (!refCount)
{
FreeMediaType(&This->pin.mtCurrent);
if (This->pAllocator)
IMemAllocator_Release(This->pAllocator);
This->pAllocator = NULL;
This->pin.IPin_iface.lpVtbl = NULL;
CoTaskMemFree(This);
return 0;
}
else
return refCount;
}
HRESULT WINAPI BaseInputPinImpl_Connect(IPin * iface, IPin * pConnector, const AM_MEDIA_TYPE * pmt)
{
ERR("Outgoing connection on an input pin! (%p, %p)\n", pConnector, pmt);
return E_UNEXPECTED;
}
HRESULT WINAPI BaseInputPinImpl_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
{
BaseInputPin *This = impl_BaseInputPin_from_IPin(iface);
PIN_DIRECTION pindirReceive;
HRESULT hr = S_OK;
TRACE("(%p, %p)\n", pReceivePin, pmt);
dump_AM_MEDIA_TYPE(pmt);
EnterCriticalSection(This->pin.pCritSec);
{
if (This->pin.pConnectedTo)
hr = VFW_E_ALREADY_CONNECTED;
if (SUCCEEDED(hr) && This->pin.pFuncsTable->pfnCheckMediaType(&This->pin, pmt) != S_OK)
hr = VFW_E_TYPE_NOT_ACCEPTED; /* FIXME: shouldn't we just map common errors onto
* VFW_E_TYPE_NOT_ACCEPTED and pass the value on otherwise? */
if (SUCCEEDED(hr))
{
IPin_QueryDirection(pReceivePin, &pindirReceive);
if (pindirReceive != PINDIR_OUTPUT)
{
ERR("Can't connect from non-output pin\n");
hr = VFW_E_INVALID_DIRECTION;
}
}
if (SUCCEEDED(hr))
{
CopyMediaType(&This->pin.mtCurrent, pmt);
This->pin.pConnectedTo = pReceivePin;
IPin_AddRef(pReceivePin);
}
}
LeaveCriticalSection(This->pin.pCritSec);
return hr;
}
static HRESULT deliver_endofstream(IPin* pin, LPVOID unused)
{
return IPin_EndOfStream( pin );
}
HRESULT WINAPI BaseInputPinImpl_QueryAccept(IPin * iface, const AM_MEDIA_TYPE * pmt)
{
BaseInputPin *This = impl_BaseInputPin_from_IPin(iface);
TRACE("(%p/%p)->(%p)\n", This, iface, pmt);
return (This->pin.pFuncsTable->pfnCheckMediaType(&This->pin, pmt) == S_OK ? S_OK : S_FALSE);
}
HRESULT WINAPI BaseInputPinImpl_EndOfStream(IPin * iface)
{
HRESULT hr = S_OK;
BaseInputPin *This = impl_BaseInputPin_from_IPin(iface);
TRACE("(%p)\n", This);
EnterCriticalSection(This->pin.pCritSec);
if (This->flushing)
hr = S_FALSE;
else
This->end_of_stream = 1;
LeaveCriticalSection(This->pin.pCritSec);
if (hr == S_OK)
hr = SendFurther( iface, deliver_endofstream, NULL, NULL );
return hr;
}
static HRESULT deliver_beginflush(IPin* pin, LPVOID unused)
{
return IPin_BeginFlush( pin );
}
HRESULT WINAPI BaseInputPinImpl_BeginFlush(IPin * iface)
{
BaseInputPin *This = impl_BaseInputPin_from_IPin(iface);
HRESULT hr;
TRACE("() semi-stub\n");
EnterCriticalSection(This->pin.pCritSec);
This->flushing = 1;
hr = SendFurther( iface, deliver_beginflush, NULL, NULL );
LeaveCriticalSection(This->pin.pCritSec);
return hr;
}
static HRESULT deliver_endflush(IPin* pin, LPVOID unused)
{
return IPin_EndFlush( pin );
}
HRESULT WINAPI BaseInputPinImpl_EndFlush(IPin * iface)
{
BaseInputPin *This = impl_BaseInputPin_from_IPin(iface);
HRESULT hr;
TRACE("(%p)\n", This);
EnterCriticalSection(This->pin.pCritSec);
This->flushing = This->end_of_stream = 0;
hr = SendFurther( iface, deliver_endflush, NULL, NULL );
LeaveCriticalSection(This->pin.pCritSec);
return hr;
}
typedef struct newsegmentargs
{
REFERENCE_TIME tStart, tStop;
double rate;
} newsegmentargs;
static HRESULT deliver_newsegment(IPin *pin, LPVOID data)
{
newsegmentargs *args = data;
return IPin_NewSegment(pin, args->tStart, args->tStop, args->rate);
}
HRESULT WINAPI BaseInputPinImpl_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
{
BaseInputPin *This = impl_BaseInputPin_from_IPin(iface);
newsegmentargs args;
TRACE("(%x%08x, %x%08x, %e)\n", (ULONG)(tStart >> 32), (ULONG)tStart, (ULONG)(tStop >> 32), (ULONG)tStop, dRate);
args.tStart = This->pin.tStart = tStart;
args.tStop = This->pin.tStop = tStop;
args.rate = This->pin.dRate = dRate;
return SendFurther( iface, deliver_newsegment, &args, NULL );
}
static const IPinVtbl InputPin_Vtbl =
{
BaseInputPinImpl_QueryInterface,
BasePinImpl_AddRef,
BaseInputPinImpl_Release,
BaseInputPinImpl_Connect,
BaseInputPinImpl_ReceiveConnection,
BasePinImpl_Disconnect,
BasePinImpl_ConnectedTo,
BasePinImpl_ConnectionMediaType,
BasePinImpl_QueryPinInfo,
BasePinImpl_QueryDirection,
BasePinImpl_QueryId,
BaseInputPinImpl_QueryAccept,
BasePinImpl_EnumMediaTypes,
BasePinImpl_QueryInternalConnections,
BaseInputPinImpl_EndOfStream,
BaseInputPinImpl_BeginFlush,
BaseInputPinImpl_EndFlush,
BaseInputPinImpl_NewSegment
};
/*** IMemInputPin implementation ***/
static inline BaseInputPin *impl_from_IMemInputPin( IMemInputPin *iface )
{
return CONTAINING_RECORD(iface, BaseInputPin, IMemInputPin_iface);
}
static HRESULT WINAPI MemInputPin_QueryInterface(IMemInputPin * iface, REFIID riid, LPVOID * ppv)
{
BaseInputPin *This = impl_from_IMemInputPin(iface);
return IPin_QueryInterface(&This->pin.IPin_iface, riid, ppv);
}
static ULONG WINAPI MemInputPin_AddRef(IMemInputPin * iface)
{
BaseInputPin *This = impl_from_IMemInputPin(iface);
return IPin_AddRef(&This->pin.IPin_iface);
}
static ULONG WINAPI MemInputPin_Release(IMemInputPin * iface)
{
BaseInputPin *This = impl_from_IMemInputPin(iface);
return IPin_Release(&This->pin.IPin_iface);
}
static HRESULT WINAPI MemInputPin_GetAllocator(IMemInputPin * iface, IMemAllocator ** ppAllocator)
{
BaseInputPin *This = impl_from_IMemInputPin(iface);
TRACE("(%p/%p)->(%p)\n", This, iface, ppAllocator);
*ppAllocator = This->pAllocator;
if (*ppAllocator)
IMemAllocator_AddRef(*ppAllocator);
return *ppAllocator ? S_OK : VFW_E_NO_ALLOCATOR;
}
static HRESULT WINAPI MemInputPin_NotifyAllocator(IMemInputPin * iface, IMemAllocator * pAllocator, BOOL bReadOnly)
{
BaseInputPin *This = impl_from_IMemInputPin(iface);
TRACE("(%p/%p)->(%p, %d)\n", This, iface, pAllocator, bReadOnly);
if (bReadOnly)
FIXME("Read only flag not handled yet!\n");
/* FIXME: Should we release the allocator on disconnection? */
if (!pAllocator)
{
WARN("Null allocator\n");
return E_POINTER;
}
if (This->preferred_allocator && pAllocator != This->preferred_allocator)
return E_FAIL;
if (This->pAllocator)
IMemAllocator_Release(This->pAllocator);
This->pAllocator = pAllocator;
if (This->pAllocator)
IMemAllocator_AddRef(This->pAllocator);
return S_OK;
}
static HRESULT WINAPI MemInputPin_GetAllocatorRequirements(IMemInputPin * iface, ALLOCATOR_PROPERTIES * pProps)
{
BaseInputPin *This = impl_from_IMemInputPin(iface);
TRACE("(%p/%p)->(%p)\n", This, iface, pProps);
/* override this method if you have any specific requirements */
return E_NOTIMPL;
}
static HRESULT WINAPI MemInputPin_Receive(IMemInputPin * iface, IMediaSample * pSample)
{
BaseInputPin *This = impl_from_IMemInputPin(iface);
HRESULT hr = S_FALSE;
/* this trace commented out for performance reasons */
/*TRACE("(%p/%p)->(%p)\n", This, iface, pSample);*/
if (This->pFuncsTable->pfnReceive)
hr = This->pFuncsTable->pfnReceive(This, pSample);
return hr;
}
static HRESULT WINAPI MemInputPin_ReceiveMultiple(IMemInputPin * iface, IMediaSample ** pSamples, LONG nSamples, LONG *nSamplesProcessed)
{
HRESULT hr = S_OK;
BaseInputPin *This = impl_from_IMemInputPin(iface);
TRACE("(%p/%p)->(%p, %d, %p)\n", This, iface, pSamples, nSamples, nSamplesProcessed);
for (*nSamplesProcessed = 0; *nSamplesProcessed < nSamples; (*nSamplesProcessed)++)
{
hr = IMemInputPin_Receive(iface, pSamples[*nSamplesProcessed]);
if (hr != S_OK)
break;
}
return hr;
}
static HRESULT WINAPI MemInputPin_ReceiveCanBlock(IMemInputPin * iface)
{
BaseInputPin *This = impl_from_IMemInputPin(iface);
TRACE("(%p/%p)->()\n", This, iface);
return S_OK;
}
static const IMemInputPinVtbl MemInputPin_Vtbl =
{
MemInputPin_QueryInterface,
MemInputPin_AddRef,
MemInputPin_Release,
MemInputPin_GetAllocator,
MemInputPin_NotifyAllocator,
MemInputPin_GetAllocatorRequirements,
MemInputPin_Receive,
MemInputPin_ReceiveMultiple,
MemInputPin_ReceiveCanBlock
};
static HRESULT InputPin_Init(const IPinVtbl *InputPin_Vtbl, const PIN_INFO * pPinInfo,
const BasePinFuncTable* pBaseFuncsTable, const BaseInputPinFuncTable* pBaseInputFuncsTable,
LPCRITICAL_SECTION pCritSec, IMemAllocator *allocator, BaseInputPin * pPinImpl)
{
TRACE("\n");
/* Common attributes */
pPinImpl->pin.refCount = 1;
pPinImpl->pin.pConnectedTo = NULL;
pPinImpl->pin.pCritSec = pCritSec;
pPinImpl->pin.tStart = 0;
pPinImpl->pin.tStop = 0;
pPinImpl->pin.dRate = 1.0;
Copy_PinInfo(&pPinImpl->pin.pinInfo, pPinInfo);
ZeroMemory(&pPinImpl->pin.mtCurrent, sizeof(AM_MEDIA_TYPE));
pPinImpl->pin.pFuncsTable = pBaseFuncsTable;
/* Input pin attributes */
pPinImpl->pFuncsTable = pBaseInputFuncsTable;
pPinImpl->pAllocator = pPinImpl->preferred_allocator = allocator;
if (pPinImpl->preferred_allocator)
IMemAllocator_AddRef(pPinImpl->preferred_allocator);
pPinImpl->pin.IPin_iface.lpVtbl = InputPin_Vtbl;
pPinImpl->IMemInputPin_iface.lpVtbl = &MemInputPin_Vtbl;
pPinImpl->flushing = pPinImpl->end_of_stream = 0;
return S_OK;
}
HRESULT BaseInputPin_Construct(const IPinVtbl *InputPin_Vtbl, const PIN_INFO * pPinInfo,
const BasePinFuncTable* pBaseFuncsTable, const BaseInputPinFuncTable* pBaseInputFuncsTable,
LPCRITICAL_SECTION pCritSec, IMemAllocator *allocator, IPin ** ppPin)
{
BaseInputPin * pPinImpl;
*ppPin = NULL;
assert(pBaseFuncsTable->pfnCheckMediaType);
if (pPinInfo->dir != PINDIR_INPUT)
{
ERR("Pin direction(%x) != PINDIR_INPUT\n", pPinInfo->dir);
return E_INVALIDARG;
}
pPinImpl = CoTaskMemAlloc(sizeof(*pPinImpl));
if (!pPinImpl)
return E_OUTOFMEMORY;
if (SUCCEEDED(InputPin_Init(InputPin_Vtbl, pPinInfo, pBaseFuncsTable, pBaseInputFuncsTable, pCritSec, allocator, pPinImpl)))
{
*ppPin = (IPin *)pPinImpl;
return S_OK;
}
CoTaskMemFree(pPinImpl);
return E_FAIL;
}
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