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wine/dlls/quartz/pin.c
Michael Stefaniuc 41044dcd8c quartz: Fix memory leaks on error paths. Found by Smatch.
2007-11-19 13:53:56 +01:00

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/*
* Generic Implementation of IPin Interface
*
* Copyright 2003 Robert Shearman
*
* 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
*/
#include "quartz_private.h"
#include "pin.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "uuids.h"
#include "vfwmsgs.h"
#include <assert.h>
WINE_DEFAULT_DEBUG_CHANNEL(quartz);
static const IPinVtbl InputPin_Vtbl;
static const IPinVtbl OutputPin_Vtbl;
static const IMemInputPinVtbl MemInputPin_Vtbl;
static const IPinVtbl PullPin_Vtbl;
#define ALIGNDOWN(value,boundary) ((value)/(boundary)*(boundary))
#define ALIGNUP(value,boundary) (ALIGNDOWN((value)+(boundary)-1, (boundary)))
static inline InputPin *impl_from_IMemInputPin( IMemInputPin *iface )
{
return (InputPin *)((char*)iface - FIELD_OFFSET(InputPin, lpVtblMemInput));
}
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;
}
/* Function called as a helper to IPin_Connect */
/* specific AM_MEDIA_TYPE - it cannot be NULL */
/* NOTE: not part of standard interface */
static HRESULT OutputPin_ConnectSpecific(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
{
OutputPin *This = (OutputPin *)iface;
HRESULT hr;
IMemAllocator * pMemAlloc = NULL;
ALLOCATOR_PROPERTIES actual; /* FIXME: should we put the actual props back in to This? */
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, 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 = IMemInputPin_GetAllocator(This->pMemInputPin, &pMemAlloc);
if (hr == VFW_E_NO_ALLOCATOR)
{
/* Input pin provides no allocator, use standard memory allocator */
hr = CoCreateInstance(&CLSID_MemoryAllocator, NULL, CLSCTX_INPROC_SERVER, &IID_IMemAllocator, (LPVOID*)&pMemAlloc);
if (SUCCEEDED(hr))
{
hr = IMemInputPin_NotifyAllocator(This->pMemInputPin, pMemAlloc, FALSE);
}
}
if (SUCCEEDED(hr))
hr = IMemAllocator_SetProperties(pMemAlloc, &This->allocProps, &actual);
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;
}
HRESULT InputPin_Construct(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin)
{
InputPin * pPinImpl;
*ppPin = NULL;
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(pPinInfo, pSampleProc, pUserData, pQueryAccept, pCritSec, pPinImpl)))
{
pPinImpl->pin.lpVtbl = &InputPin_Vtbl;
pPinImpl->lpVtblMemInput = &MemInputPin_Vtbl;
*ppPin = (IPin *)(&pPinImpl->pin.lpVtbl);
return S_OK;
}
CoTaskMemFree(pPinImpl);
return E_FAIL;
}
/* Note that we don't init the vtables here (like C++ constructor) */
HRESULT InputPin_Init(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, InputPin * pPinImpl)
{
TRACE("\n");
/* Common attributes */
pPinImpl->pin.refCount = 1;
pPinImpl->pin.pConnectedTo = NULL;
pPinImpl->pin.fnQueryAccept = pQueryAccept;
pPinImpl->pin.pUserData = pUserData;
pPinImpl->pin.pCritSec = pCritSec;
Copy_PinInfo(&pPinImpl->pin.pinInfo, pPinInfo);
ZeroMemory(&pPinImpl->pin.mtCurrent, sizeof(AM_MEDIA_TYPE));
/* Input pin attributes */
pPinImpl->fnSampleProc = pSampleProc;
pPinImpl->pAllocator = NULL;
pPinImpl->tStart = 0;
pPinImpl->tStop = 0;
pPinImpl->dRate = 0;
return S_OK;
}
HRESULT OutputPin_Init(const PIN_INFO * pPinInfo, const ALLOCATOR_PROPERTIES * props, LPVOID pUserData,
QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, OutputPin * pPinImpl)
{
TRACE("\n");
/* Common attributes */
pPinImpl->pin.lpVtbl = &OutputPin_Vtbl;
pPinImpl->pin.refCount = 1;
pPinImpl->pin.pConnectedTo = NULL;
pPinImpl->pin.fnQueryAccept = pQueryAccept;
pPinImpl->pin.pUserData = pUserData;
pPinImpl->pin.pCritSec = pCritSec;
Copy_PinInfo(&pPinImpl->pin.pinInfo, pPinInfo);
ZeroMemory(&pPinImpl->pin.mtCurrent, sizeof(AM_MEDIA_TYPE));
/* Output pin attributes */
pPinImpl->pMemInputPin = NULL;
pPinImpl->pConnectSpecific = OutputPin_ConnectSpecific;
if (props)
{
memcpy(&pPinImpl->allocProps, props, sizeof(pPinImpl->allocProps));
if (pPinImpl->allocProps.cbAlign == 0)
pPinImpl->allocProps.cbAlign = 1;
}
else
ZeroMemory(&pPinImpl->allocProps, sizeof(pPinImpl->allocProps));
return S_OK;
}
HRESULT OutputPin_Construct(const PIN_INFO * pPinInfo, ALLOCATOR_PROPERTIES *props, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin)
{
OutputPin * pPinImpl;
*ppPin = NULL;
if (pPinInfo->dir != PINDIR_OUTPUT)
{
ERR("Pin direction(%x) != PINDIR_OUTPUT\n", pPinInfo->dir);
return E_INVALIDARG;
}
pPinImpl = CoTaskMemAlloc(sizeof(*pPinImpl));
if (!pPinImpl)
return E_OUTOFMEMORY;
if (SUCCEEDED(OutputPin_Init(pPinInfo, props, pUserData, pQueryAccept, pCritSec, pPinImpl)))
{
pPinImpl->pin.lpVtbl = &OutputPin_Vtbl;
*ppPin = (IPin *)(&pPinImpl->pin.lpVtbl);
return S_OK;
}
CoTaskMemFree(pPinImpl);
return E_FAIL;
}
/*** Common pin functions ***/
ULONG WINAPI IPinImpl_AddRef(IPin * iface)
{
IPinImpl *This = (IPinImpl *)iface;
ULONG refCount = InterlockedIncrement(&This->refCount);
TRACE("(%p)->() AddRef from %d\n", iface, refCount - 1);
return refCount;
}
HRESULT WINAPI IPinImpl_Disconnect(IPin * iface)
{
HRESULT hr;
IPinImpl *This = (IPinImpl *)iface;
TRACE("()\n");
EnterCriticalSection(This->pCritSec);
{
if (This->pConnectedTo)
{
IPin_Release(This->pConnectedTo);
This->pConnectedTo = NULL;
hr = S_OK;
}
else
hr = S_FALSE;
}
LeaveCriticalSection(This->pCritSec);
return hr;
}
HRESULT WINAPI IPinImpl_ConnectedTo(IPin * iface, IPin ** ppPin)
{
HRESULT hr;
IPinImpl *This = (IPinImpl *)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;
}
LeaveCriticalSection(This->pCritSec);
return hr;
}
HRESULT WINAPI IPinImpl_ConnectionMediaType(IPin * iface, AM_MEDIA_TYPE * pmt)
{
HRESULT hr;
IPinImpl *This = (IPinImpl *)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 IPinImpl_QueryPinInfo(IPin * iface, PIN_INFO * pInfo)
{
IPinImpl *This = (IPinImpl *)iface;
TRACE("(%p/%p)->(%p)\n", This, iface, pInfo);
Copy_PinInfo(pInfo, &This->pinInfo);
IBaseFilter_AddRef(pInfo->pFilter);
return S_OK;
}
HRESULT WINAPI IPinImpl_QueryDirection(IPin * iface, PIN_DIRECTION * pPinDir)
{
IPinImpl *This = (IPinImpl *)iface;
TRACE("(%p/%p)->(%p)\n", This, iface, pPinDir);
*pPinDir = This->pinInfo.dir;
return S_OK;
}
HRESULT WINAPI IPinImpl_QueryId(IPin * iface, LPWSTR * Id)
{
IPinImpl *This = (IPinImpl *)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 IPinImpl_QueryAccept(IPin * iface, const AM_MEDIA_TYPE * pmt)
{
IPinImpl *This = (IPinImpl *)iface;
TRACE("(%p/%p)->(%p)\n", This, iface, pmt);
return (This->fnQueryAccept(This->pUserData, pmt) == S_OK ? S_OK : S_FALSE);
}
HRESULT WINAPI IPinImpl_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum)
{
IPinImpl *This = (IPinImpl *)iface;
ENUMMEDIADETAILS emd;
TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum);
/* override this method to allow enumeration of your types */
emd.cMediaTypes = 0;
emd.pMediaTypes = NULL;
return IEnumMediaTypesImpl_Construct(&emd, ppEnum);
}
HRESULT WINAPI IPinImpl_QueryInternalConnections(IPin * iface, IPin ** apPin, ULONG * cPin)
{
IPinImpl *This = (IPinImpl *)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 */
}
/*** IPin implementation for an input pin ***/
HRESULT WINAPI InputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
{
InputPin *This = (InputPin *)iface;
TRACE("(%p)->(%s, %p)\n", iface, qzdebugstr_guid(riid), ppv);
*ppv = NULL;
if (IsEqualIID(riid, &IID_IUnknown))
*ppv = (LPVOID)iface;
else if (IsEqualIID(riid, &IID_IPin))
*ppv = (LPVOID)iface;
else if (IsEqualIID(riid, &IID_IMemInputPin))
*ppv = (LPVOID)&This->lpVtblMemInput;
if (*ppv)
{
IUnknown_AddRef((IUnknown *)(*ppv));
return S_OK;
}
FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
return E_NOINTERFACE;
}
ULONG WINAPI InputPin_Release(IPin * iface)
{
InputPin *This = (InputPin *)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);
CoTaskMemFree(This);
return 0;
}
else
return refCount;
}
HRESULT WINAPI InputPin_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 InputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
{
InputPin *This = (InputPin *)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.fnQueryAccept(This->pin.pUserData, 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;
}
HRESULT WINAPI InputPin_EndOfStream(IPin * iface)
{
TRACE("()\n");
return S_OK;
}
HRESULT WINAPI InputPin_BeginFlush(IPin * iface)
{
FIXME("()\n");
return E_NOTIMPL;
}
HRESULT WINAPI InputPin_EndFlush(IPin * iface)
{
FIXME("()\n");
return E_NOTIMPL;
}
HRESULT WINAPI InputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
{
InputPin *This = (InputPin *)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;
}
static const IPinVtbl InputPin_Vtbl =
{
InputPin_QueryInterface,
IPinImpl_AddRef,
InputPin_Release,
InputPin_Connect,
InputPin_ReceiveConnection,
IPinImpl_Disconnect,
IPinImpl_ConnectedTo,
IPinImpl_ConnectionMediaType,
IPinImpl_QueryPinInfo,
IPinImpl_QueryDirection,
IPinImpl_QueryId,
IPinImpl_QueryAccept,
IPinImpl_EnumMediaTypes,
IPinImpl_QueryInternalConnections,
InputPin_EndOfStream,
InputPin_BeginFlush,
InputPin_EndFlush,
InputPin_NewSegment
};
/*** IMemInputPin implementation ***/
HRESULT WINAPI MemInputPin_QueryInterface(IMemInputPin * iface, REFIID riid, LPVOID * ppv)
{
InputPin *This = impl_from_IMemInputPin(iface);
return IPin_QueryInterface((IPin *)&This->pin, riid, ppv);
}
ULONG WINAPI MemInputPin_AddRef(IMemInputPin * iface)
{
InputPin *This = impl_from_IMemInputPin(iface);
return IPin_AddRef((IPin *)&This->pin);
}
ULONG WINAPI MemInputPin_Release(IMemInputPin * iface)
{
InputPin *This = impl_from_IMemInputPin(iface);
return IPin_Release((IPin *)&This->pin);
}
HRESULT WINAPI MemInputPin_GetAllocator(IMemInputPin * iface, IMemAllocator ** ppAllocator)
{
InputPin *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;
}
HRESULT WINAPI MemInputPin_NotifyAllocator(IMemInputPin * iface, IMemAllocator * pAllocator, BOOL bReadOnly)
{
InputPin *This = impl_from_IMemInputPin(iface);
TRACE("(%p/%p)->(%p, %d)\n", This, iface, pAllocator, bReadOnly);
if (This->pAllocator)
IMemAllocator_Release(This->pAllocator);
This->pAllocator = pAllocator;
if (This->pAllocator)
IMemAllocator_AddRef(This->pAllocator);
return S_OK;
}
HRESULT WINAPI MemInputPin_GetAllocatorRequirements(IMemInputPin * iface, ALLOCATOR_PROPERTIES * pProps)
{
InputPin *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;
}
HRESULT WINAPI MemInputPin_Receive(IMemInputPin * iface, IMediaSample * pSample)
{
InputPin *This = impl_from_IMemInputPin(iface);
/* this trace commented out for performance reasons */
/*TRACE("(%p/%p)->(%p)\n", This, iface, pSample);*/
return This->fnSampleProc(This->pin.pUserData, pSample);
}
HRESULT WINAPI MemInputPin_ReceiveMultiple(IMemInputPin * iface, IMediaSample ** pSamples, long nSamples, long *nSamplesProcessed)
{
HRESULT hr = S_OK;
InputPin *This = impl_from_IMemInputPin(iface);
TRACE("(%p/%p)->(%p, %ld, %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;
}
HRESULT WINAPI MemInputPin_ReceiveCanBlock(IMemInputPin * iface)
{
InputPin *This = impl_from_IMemInputPin(iface);
FIXME("(%p/%p)->()\n", This, iface);
/* FIXME: we should check whether any output pins will block */
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
};
HRESULT WINAPI OutputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
{
OutputPin *This = (OutputPin *)iface;
TRACE("(%p/%p)->(%s, %p)\n", This, iface, qzdebugstr_guid(riid), ppv);
*ppv = NULL;
if (IsEqualIID(riid, &IID_IUnknown))
*ppv = (LPVOID)iface;
else if (IsEqualIID(riid, &IID_IPin))
*ppv = (LPVOID)iface;
if (*ppv)
{
IUnknown_AddRef((IUnknown *)(*ppv));
return S_OK;
}
FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
return E_NOINTERFACE;
}
ULONG WINAPI OutputPin_Release(IPin * iface)
{
OutputPin *This = (OutputPin *)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 OutputPin_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
{
HRESULT hr;
OutputPin *This = (OutputPin *)iface;
TRACE("(%p/%p)->(%p, %p)\n", This, iface, pReceivePin, pmt);
dump_AM_MEDIA_TYPE(pmt);
/* If we try to connect to ourself, 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->pConnectSpecific(iface, pReceivePin, pmt);
else
{
/* negotiate media type */
IEnumMediaTypes * pEnumCandidates;
AM_MEDIA_TYPE * pmtCandidate; /* 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))
{
if (( !pmt || CompareMediaTypes(pmt, pmtCandidate, TRUE) ) &&
(This->pConnectSpecific(iface, pReceivePin, pmtCandidate) == S_OK))
{
hr = S_OK;
CoTaskMemFree(pmtCandidate);
break;
}
CoTaskMemFree(pmtCandidate);
}
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))
{
if (( !pmt || CompareMediaTypes(pmt, pmtCandidate, TRUE) ) &&
(This->pConnectSpecific(iface, pReceivePin, pmtCandidate) == S_OK))
{
hr = S_OK;
CoTaskMemFree(pmtCandidate);
break;
}
CoTaskMemFree(pmtCandidate);
} /* 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 OutputPin_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 OutputPin_Disconnect(IPin * iface)
{
HRESULT hr;
OutputPin *This = (OutputPin *)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;
hr = S_OK;
}
else
hr = S_FALSE;
}
LeaveCriticalSection(This->pin.pCritSec);
return hr;
}
HRESULT WINAPI OutputPin_EndOfStream(IPin * iface)
{
TRACE("()\n");
/* not supposed to do anything in an output pin */
return E_UNEXPECTED;
}
HRESULT WINAPI OutputPin_BeginFlush(IPin * iface)
{
TRACE("(%p)->()\n", iface);
/* not supposed to do anything in an output pin */
return E_UNEXPECTED;
}
HRESULT WINAPI OutputPin_EndFlush(IPin * iface)
{
TRACE("(%p)->()\n", iface);
/* not supposed to do anything in an output pin */
return E_UNEXPECTED;
}
HRESULT WINAPI OutputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
{
TRACE("(%p)->(%x%08x, %x%08x, %e)\n", iface, (ULONG)(tStart >> 32), (ULONG)tStart, (ULONG)(tStop >> 32), (ULONG)tStop, dRate);
/* not supposed to do anything in an output pin */
return E_UNEXPECTED;
}
static const IPinVtbl OutputPin_Vtbl =
{
OutputPin_QueryInterface,
IPinImpl_AddRef,
OutputPin_Release,
OutputPin_Connect,
OutputPin_ReceiveConnection,
OutputPin_Disconnect,
IPinImpl_ConnectedTo,
IPinImpl_ConnectionMediaType,
IPinImpl_QueryPinInfo,
IPinImpl_QueryDirection,
IPinImpl_QueryId,
IPinImpl_QueryAccept,
IPinImpl_EnumMediaTypes,
IPinImpl_QueryInternalConnections,
OutputPin_EndOfStream,
OutputPin_BeginFlush,
OutputPin_EndFlush,
OutputPin_NewSegment
};
HRESULT OutputPin_GetDeliveryBuffer(OutputPin * 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;
}
HRESULT OutputPin_SendSample(OutputPin * 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;
}
HRESULT OutputPin_DeliverNewSegment(OutputPin * This, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
{
HRESULT hr;
EnterCriticalSection(This->pin.pCritSec);
{
if (!This->pin.pConnectedTo)
hr = VFW_E_NOT_CONNECTED;
else
hr = IPin_NewSegment(This->pin.pConnectedTo, tStart, tStop, dRate);
}
LeaveCriticalSection(This->pin.pCritSec);
return hr;
}
HRESULT OutputPin_CommitAllocator(OutputPin * 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_Commit(pAlloc);
if (pAlloc)
IMemAllocator_Release(pAlloc);
}
}
LeaveCriticalSection(This->pin.pCritSec);
return hr;
}
HRESULT OutputPin_DeliverDisconnect(OutputPin * 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);
}
}
LeaveCriticalSection(This->pin.pCritSec);
return hr;
}
HRESULT PullPin_Construct(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin)
{
PullPin * pPinImpl;
*ppPin = NULL;
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(PullPin_Init(pPinInfo, pSampleProc, pUserData, pQueryAccept, pCritSec, pPinImpl)))
{
pPinImpl->pin.lpVtbl = &PullPin_Vtbl;
*ppPin = (IPin *)(&pPinImpl->pin.lpVtbl);
return S_OK;
}
CoTaskMemFree(pPinImpl);
return E_FAIL;
}
HRESULT PullPin_Init(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, PullPin * pPinImpl)
{
/* Common attributes */
pPinImpl->pin.refCount = 1;
pPinImpl->pin.pConnectedTo = NULL;
pPinImpl->pin.fnQueryAccept = pQueryAccept;
pPinImpl->pin.pUserData = pUserData;
pPinImpl->pin.pCritSec = pCritSec;
Copy_PinInfo(&pPinImpl->pin.pinInfo, pPinInfo);
ZeroMemory(&pPinImpl->pin.mtCurrent, sizeof(AM_MEDIA_TYPE));
/* Input pin attributes */
pPinImpl->fnSampleProc = pSampleProc;
pPinImpl->fnPreConnect = NULL;
pPinImpl->pAlloc = NULL;
pPinImpl->pReader = NULL;
pPinImpl->hThread = NULL;
pPinImpl->hEventStateChanged = CreateEventW(NULL, FALSE, TRUE, NULL);
pPinImpl->rtStart = 0;
pPinImpl->rtCurrent = 0;
pPinImpl->rtStop = ((LONGLONG)0x7fffffff << 32) | 0xffffffff;
return S_OK;
}
HRESULT WINAPI PullPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
{
PIN_DIRECTION pindirReceive;
HRESULT hr = S_OK;
PullPin *This = (PullPin *)iface;
TRACE("(%p/%p)->(%p, %p)\n", This, iface, 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.fnQueryAccept(This->pin.pUserData, 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;
}
}
This->pReader = NULL;
This->pAlloc = NULL;
if (SUCCEEDED(hr))
{
hr = IPin_QueryInterface(pReceivePin, &IID_IAsyncReader, (LPVOID *)&This->pReader);
}
if (SUCCEEDED(hr))
{
ALLOCATOR_PROPERTIES props;
props.cBuffers = 3;
props.cbBuffer = 64 * 1024; /* 64k bytes */
props.cbAlign = 1;
props.cbPrefix = 0;
hr = IAsyncReader_RequestAllocator(This->pReader, NULL, &props, &This->pAlloc);
}
if (SUCCEEDED(hr) && This->fnPreConnect)
{
hr = This->fnPreConnect(iface, pReceivePin);
}
if (SUCCEEDED(hr))
{
CopyMediaType(&This->pin.mtCurrent, pmt);
This->pin.pConnectedTo = pReceivePin;
IPin_AddRef(pReceivePin);
}
else
{
if (This->pReader)
IAsyncReader_Release(This->pReader);
This->pReader = NULL;
if (This->pAlloc)
IMemAllocator_Release(This->pAlloc);
This->pAlloc = NULL;
}
}
LeaveCriticalSection(This->pin.pCritSec);
return hr;
}
HRESULT WINAPI PullPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
{
PullPin *This = (PullPin *)iface;
TRACE("(%p/%p)->(%s, %p)\n", This, iface, qzdebugstr_guid(riid), ppv);
*ppv = NULL;
if (IsEqualIID(riid, &IID_IUnknown))
*ppv = (LPVOID)iface;
else if (IsEqualIID(riid, &IID_IPin))
*ppv = (LPVOID)iface;
if (*ppv)
{
IUnknown_AddRef((IUnknown *)(*ppv));
return S_OK;
}
FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
return E_NOINTERFACE;
}
ULONG WINAPI PullPin_Release(IPin * iface)
{
PullPin *This = (PullPin *)iface;
ULONG refCount = InterlockedDecrement(&This->pin.refCount);
TRACE("(%p)->() Release from %d\n", This, refCount + 1);
if (!refCount)
{
if(This->pAlloc)
IMemAllocator_Release(This->pAlloc);
if(This->pReader)
IAsyncReader_Release(This->pReader);
CloseHandle(This->hEventStateChanged);
CoTaskMemFree(This);
return 0;
}
return refCount;
}
static DWORD WINAPI PullPin_Thread_Main(LPVOID pv)
{
for (;;)
SleepEx(INFINITE, TRUE);
}
static void CALLBACK PullPin_Thread_Process(ULONG_PTR iface)
{
PullPin *This = (PullPin *)iface;
HRESULT hr;
ALLOCATOR_PROPERTIES allocProps;
CoInitializeEx(NULL, COINIT_MULTITHREADED);
SetEvent(This->hEventStateChanged);
hr = IMemAllocator_GetProperties(This->pAlloc, &allocProps);
if (This->rtCurrent < This->rtStart)
This->rtCurrent = MEDIATIME_FROM_BYTES(ALIGNDOWN(BYTES_FROM_MEDIATIME(This->rtStart), allocProps.cbAlign));
TRACE("Start\n");
while (This->rtCurrent < This->rtStop && hr == S_OK)
{
/* FIXME: to improve performance by quite a bit this should be changed
* so that one sample is processed while one sample is fetched. However,
* it is harder to debug so for the moment it will stay as it is */
IMediaSample * pSample = NULL;
REFERENCE_TIME rtSampleStart;
REFERENCE_TIME rtSampleStop;
DWORD_PTR dwUser;
TRACE("Process sample\n");
hr = IMemAllocator_GetBuffer(This->pAlloc, &pSample, NULL, NULL, 0);
if (SUCCEEDED(hr))
{
rtSampleStart = This->rtCurrent;
rtSampleStop = rtSampleStart + MEDIATIME_FROM_BYTES(IMediaSample_GetSize(pSample));
if (rtSampleStop > This->rtStop)
rtSampleStop = MEDIATIME_FROM_BYTES(ALIGNUP(BYTES_FROM_MEDIATIME(This->rtStop), allocProps.cbAlign));
hr = IMediaSample_SetTime(pSample, &rtSampleStart, &rtSampleStop);
This->rtCurrent = rtSampleStop;
}
if (SUCCEEDED(hr))
hr = IAsyncReader_Request(This->pReader, pSample, (ULONG_PTR)0);
if (SUCCEEDED(hr))
hr = IAsyncReader_WaitForNext(This->pReader, 10000, &pSample, &dwUser);
if (SUCCEEDED(hr))
{
rtSampleStop = rtSampleStart + MEDIATIME_FROM_BYTES(IMediaSample_GetActualDataLength(pSample));
if (rtSampleStop > This->rtStop)
rtSampleStop = MEDIATIME_FROM_BYTES(ALIGNUP(BYTES_FROM_MEDIATIME(This->rtStop), allocProps.cbAlign));
hr = IMediaSample_SetTime(pSample, &rtSampleStart, &rtSampleStop);
}
if (SUCCEEDED(hr))
hr = This->fnSampleProc(This->pin.pUserData, pSample);
else
ERR("Processing error: %x\n", hr);
if (pSample)
IMediaSample_Release(pSample);
}
CoUninitialize();
TRACE("End\n");
}
static void CALLBACK PullPin_Thread_Stop(ULONG_PTR iface)
{
PullPin *This = (PullPin *)iface;
TRACE("(%p/%p)->()\n", This, (LPVOID)iface);
EnterCriticalSection(This->pin.pCritSec);
{
HRESULT hr;
CloseHandle(This->hThread);
This->hThread = NULL;
if (FAILED(hr = IMemAllocator_Decommit(This->pAlloc)))
ERR("Allocator decommit failed with error %x. Possible memory leak\n", hr);
}
LeaveCriticalSection(This->pin.pCritSec);
SetEvent(This->hEventStateChanged);
IBaseFilter_Release(This->pin.pinInfo.pFilter);
ExitThread(0);
}
HRESULT PullPin_InitProcessing(PullPin * This)
{
HRESULT hr = S_OK;
TRACE("(%p)->()\n", This);
assert(!This->hThread);
/* if we are connected */
if (This->pAlloc)
{
EnterCriticalSection(This->pin.pCritSec);
{
DWORD dwThreadId;
assert(!This->hThread);
/* AddRef the filter to make sure it and it's pins will be around
* as long as the thread */
IBaseFilter_AddRef(This->pin.pinInfo.pFilter);
This->hThread = CreateThread(NULL, 0, PullPin_Thread_Main, NULL, 0, &dwThreadId);
if (!This->hThread)
{
hr = HRESULT_FROM_WIN32(GetLastError());
IBaseFilter_Release(This->pin.pinInfo.pFilter);
}
if (SUCCEEDED(hr))
hr = IMemAllocator_Commit(This->pAlloc);
}
LeaveCriticalSection(This->pin.pCritSec);
}
TRACE(" -- %x\n", hr);
return hr;
}
HRESULT PullPin_StartProcessing(PullPin * This)
{
/* if we are connected */
TRACE("(%p)->()\n", This);
if(This->pAlloc)
{
assert(This->hThread);
ResetEvent(This->hEventStateChanged);
if (!QueueUserAPC(PullPin_Thread_Process, This->hThread, (ULONG_PTR)This))
return HRESULT_FROM_WIN32(GetLastError());
}
return S_OK;
}
HRESULT PullPin_PauseProcessing(PullPin * This)
{
/* make the processing function exit its loop */
This->rtStop = 0;
return S_OK;
}
HRESULT PullPin_StopProcessing(PullPin * This)
{
/* if we are connected */
if (This->pAlloc)
{
assert(This->hThread);
ResetEvent(This->hEventStateChanged);
PullPin_PauseProcessing(This);
if (!QueueUserAPC(PullPin_Thread_Stop, This->hThread, (ULONG_PTR)This))
return HRESULT_FROM_WIN32(GetLastError());
}
return S_OK;
}
HRESULT PullPin_WaitForStateChange(PullPin * This, DWORD dwMilliseconds)
{
if (WaitForSingleObject(This->hEventStateChanged, dwMilliseconds) == WAIT_TIMEOUT)
return S_FALSE;
return S_OK;
}
HRESULT PullPin_Seek(PullPin * This, REFERENCE_TIME rtStart, REFERENCE_TIME rtStop)
{
FIXME("(%p)->(%x%08x, %x%08x)\n", This, (LONG)(rtStart >> 32), (LONG)rtStart, (LONG)(rtStop >> 32), (LONG)rtStop);
PullPin_BeginFlush((IPin *)This);
/* FIXME: need critical section? */
This->rtStart = rtStart;
This->rtStop = rtStop;
PullPin_EndFlush((IPin *)This);
return S_OK;
}
HRESULT WINAPI PullPin_EndOfStream(IPin * iface)
{
FIXME("(%p)->()\n", iface);
return E_NOTIMPL;
}
HRESULT WINAPI PullPin_BeginFlush(IPin * iface)
{
FIXME("(%p)->()\n", iface);
return E_NOTIMPL;
}
HRESULT WINAPI PullPin_EndFlush(IPin * iface)
{
FIXME("(%p)->()\n", iface);
return E_NOTIMPL;
}
HRESULT WINAPI PullPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
{
FIXME("(%p)->(%s, %s, %g)\n", iface, wine_dbgstr_longlong(tStart), wine_dbgstr_longlong(tStop), dRate);
return E_NOTIMPL;
}
static const IPinVtbl PullPin_Vtbl =
{
PullPin_QueryInterface,
IPinImpl_AddRef,
PullPin_Release,
OutputPin_Connect,
PullPin_ReceiveConnection,
IPinImpl_Disconnect,
IPinImpl_ConnectedTo,
IPinImpl_ConnectionMediaType,
IPinImpl_QueryPinInfo,
IPinImpl_QueryDirection,
IPinImpl_QueryId,
IPinImpl_QueryAccept,
IPinImpl_EnumMediaTypes,
IPinImpl_QueryInternalConnections,
PullPin_EndOfStream,
PullPin_BeginFlush,
PullPin_EndFlush,
PullPin_NewSegment
};
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