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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
*/
#include "strmbase_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
static const IMemInputPinVtbl MemInputPin_Vtbl;
typedef HRESULT (*SendPinFunc)( IPin *to, LPVOID arg );
static inline struct strmbase_pin *impl_from_IPin(IPin *iface)
{
return CONTAINING_RECORD(iface, struct strmbase_pin, 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");
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 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)));
}
HRESULT strmbase_pin_get_media_type(struct strmbase_pin *iface, unsigned int index, AM_MEDIA_TYPE *mt)
{
return VFW_S_NO_MORE_ITEMS;
}
HRESULT WINAPI BasePinImpl_QueryInterface(IPin *iface, REFIID iid, void **out)
{
struct strmbase_pin *pin = impl_from_IPin(iface);
HRESULT hr;
TRACE("iface %p, iid %s, out %p.\n", iface, debugstr_guid(iid), out);
*out = NULL;
if (pin->pFuncsTable->pin_query_interface
&& SUCCEEDED(hr = pin->pFuncsTable->pin_query_interface(pin, iid, out)))
return hr;
if (IsEqualIID(iid, &IID_IUnknown) || IsEqualIID(iid, &IID_IPin))
*out = iface;
else
{
WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(iid));
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown *)*out);
return S_OK;
}
ULONG WINAPI BasePinImpl_AddRef(IPin *iface)
{
struct strmbase_pin *pin = impl_from_IPin(iface);
return IBaseFilter_AddRef(&pin->filter->IBaseFilter_iface);
}
ULONG WINAPI BasePinImpl_Release(IPin *iface)
{
struct strmbase_pin *pin = impl_from_IPin(iface);
return IBaseFilter_Release(&pin->filter->IBaseFilter_iface);
}
HRESULT WINAPI BasePinImpl_Disconnect(IPin * iface)
{
struct strmbase_pin *This = impl_from_IPin(iface);
HRESULT hr;
TRACE("(%p)->()\n", This);
EnterCriticalSection(&This->filter->csFilter);
{
if (This->peer)
{
IPin_Release(This->peer);
This->peer = NULL;
FreeMediaType(&This->mtCurrent);
ZeroMemory(&This->mtCurrent, sizeof(This->mtCurrent));
hr = S_OK;
}
else
hr = S_FALSE;
}
LeaveCriticalSection(&This->filter->csFilter);
return hr;
}
HRESULT WINAPI BasePinImpl_ConnectedTo(IPin * iface, IPin ** ppPin)
{
struct strmbase_pin *This = impl_from_IPin(iface);
HRESULT hr;
TRACE("(%p)->(%p)\n", This, ppPin);
EnterCriticalSection(&This->filter->csFilter);
{
if (This->peer)
{
*ppPin = This->peer;
IPin_AddRef(*ppPin);
hr = S_OK;
}
else
{
hr = VFW_E_NOT_CONNECTED;
*ppPin = NULL;
}
}
LeaveCriticalSection(&This->filter->csFilter);
return hr;
}
HRESULT WINAPI BasePinImpl_ConnectionMediaType(IPin * iface, AM_MEDIA_TYPE * pmt)
{
struct strmbase_pin *This = impl_from_IPin(iface);
HRESULT hr;
TRACE("(%p)->(%p)\n", This, pmt);
EnterCriticalSection(&This->filter->csFilter);
{
if (This->peer)
{
CopyMediaType(pmt, &This->mtCurrent);
hr = S_OK;
}
else
{
ZeroMemory(pmt, sizeof(*pmt));
hr = VFW_E_NOT_CONNECTED;
}
}
LeaveCriticalSection(&This->filter->csFilter);
return hr;
}
HRESULT WINAPI BasePinImpl_QueryPinInfo(IPin *iface, PIN_INFO *info)
{
struct strmbase_pin *pin = impl_from_IPin(iface);
TRACE("pin %p, info %p.\n", pin, info);
info->dir = pin->dir;
IBaseFilter_AddRef(info->pFilter = &pin->filter->IBaseFilter_iface);
lstrcpyW(info->achName, pin->name);
return S_OK;
}
HRESULT WINAPI BasePinImpl_QueryDirection(IPin *iface, PIN_DIRECTION *dir)
{
struct strmbase_pin *pin = impl_from_IPin(iface);
TRACE("pin %p, dir %p.\n", pin, dir);
*dir = pin->dir;
return S_OK;
}
HRESULT WINAPI BasePinImpl_QueryId(IPin *iface, WCHAR **id)
{
struct strmbase_pin *pin = impl_from_IPin(iface);
TRACE("pin %p, id %p.\n", pin, id);
if (!(*id = CoTaskMemAlloc((lstrlenW(pin->name) + 1) * sizeof(WCHAR))))
return E_OUTOFMEMORY;
lstrcpyW(*id, pin->name);
return S_OK;
}
HRESULT WINAPI BasePinImpl_QueryAccept(IPin * iface, const AM_MEDIA_TYPE * pmt)
{
struct strmbase_pin *This = impl_from_IPin(iface);
TRACE("(%p)->(%p)\n", iface, pmt);
return (This->pFuncsTable->pin_query_accept(This, pmt) == S_OK ? S_OK : S_FALSE);
}
HRESULT WINAPI BasePinImpl_EnumMediaTypes(IPin *iface, IEnumMediaTypes **enum_media_types)
{
struct strmbase_pin *pin = impl_from_IPin(iface);
AM_MEDIA_TYPE mt;
HRESULT hr;
TRACE("iface %p, enum_media_types %p.\n", iface, enum_media_types);
if (FAILED(hr = pin->pFuncsTable->pin_get_media_type(pin, 0, &mt)))
return hr;
if (hr == S_OK)
FreeMediaType(&mt);
return enum_media_types_create(pin, enum_media_types);
}
HRESULT WINAPI BasePinImpl_QueryInternalConnections(IPin * iface, IPin ** apPin, ULONG * cPin)
{
struct strmbase_pin *This = impl_from_IPin(iface);
TRACE("(%p)->(%p, %p)\n", This, 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)
{
struct strmbase_pin *This = impl_from_IPin(iface);
TRACE("(%p)->(%s, %s, %e)\n", This, wine_dbgstr_longlong(tStart), wine_dbgstr_longlong(tStop), dRate);
This->tStart = tStart;
This->tStop = tStop;
This->dRate = dRate;
return S_OK;
}
/*** OutputPin implementation ***/
static inline struct strmbase_source *impl_source_from_IPin( IPin *iface )
{
return CONTAINING_RECORD(iface, struct strmbase_source, pin.IPin_iface);
}
HRESULT WINAPI BaseOutputPinImpl_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
{
HRESULT hr;
struct strmbase_source *This = impl_source_from_IPin(iface);
TRACE("(%p)->(%p, %p)\n", This, pReceivePin, pmt);
dump_AM_MEDIA_TYPE(pmt);
if (!pReceivePin)
return E_POINTER;
/* 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.filter->csFilter);
{
/* 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->pFuncsTable->pfnAttemptConnection(This, 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->pFuncsTable->pfnAttemptConnection(This, 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 */
{
ULONG fetched;
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, &fetched))
{
assert(pmtCandidate);
dump_AM_MEDIA_TYPE(pmtCandidate);
if ((!pmt || CompareMediaTypes(pmt, pmtCandidate, TRUE))
&& This->pFuncsTable->pfnAttemptConnection(This, 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.filter->csFilter);
TRACE(" -- %x\n", hr);
return hr;
}
HRESULT WINAPI BaseOutputPinImpl_ReceiveConnection(IPin *iface, IPin *pin, const AM_MEDIA_TYPE *pmt)
{
ERR("(%p)->(%p, %p) incoming connection on an output pin!\n", iface, pin, pmt);
return E_UNEXPECTED;
}
HRESULT WINAPI BaseOutputPinImpl_Disconnect(IPin * iface)
{
HRESULT hr;
struct strmbase_source *This = impl_source_from_IPin(iface);
TRACE("(%p)->()\n", This);
EnterCriticalSection(&This->pin.filter->csFilter);
{
if (This->pMemInputPin)
{
IMemInputPin_Release(This->pMemInputPin);
This->pMemInputPin = NULL;
}
if (This->pin.peer)
{
IPin_Release(This->pin.peer);
This->pin.peer = NULL;
FreeMediaType(&This->pin.mtCurrent);
ZeroMemory(&This->pin.mtCurrent, sizeof(This->pin.mtCurrent));
hr = S_OK;
}
else
hr = S_FALSE;
}
LeaveCriticalSection(&This->pin.filter->csFilter);
return hr;
}
HRESULT WINAPI BaseOutputPinImpl_EndOfStream(IPin * iface)
{
TRACE("(%p)->()\n", iface);
/* 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;
}
HRESULT WINAPI BaseOutputPinImpl_GetDeliveryBuffer(struct strmbase_source *This,
IMediaSample **ppSample, REFERENCE_TIME *tStart, REFERENCE_TIME *tStop, DWORD dwFlags)
{
HRESULT hr;
TRACE("(%p)->(%p, %p, %p, %x)\n", This, ppSample, tStart, tStop, dwFlags);
if (!This->pin.peer)
hr = VFW_E_NOT_CONNECTED;
else
{
hr = IMemAllocator_GetBuffer(This->pAllocator, ppSample, tStart, tStop, dwFlags);
if (SUCCEEDED(hr))
hr = IMediaSample_SetTime(*ppSample, tStart, tStop);
}
return hr;
}
/* replaces OutputPin_SendSample */
HRESULT WINAPI BaseOutputPinImpl_Deliver(struct strmbase_source *This, IMediaSample *pSample)
{
IMemInputPin * pMemConnected = NULL;
PIN_INFO pinInfo;
HRESULT hr;
EnterCriticalSection(&This->pin.filter->csFilter);
{
if (!This->pin.peer || !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.peer, &pinInfo);
}
}
LeaveCriticalSection(&This->pin.filter->csFilter);
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(struct strmbase_source *This)
{
HRESULT hr;
TRACE("(%p)->()\n", This);
EnterCriticalSection(&This->pin.filter->csFilter);
{
if (!This->pin.peer || !This->pMemInputPin)
hr = VFW_E_NOT_CONNECTED;
else
hr = IMemAllocator_Commit(This->pAllocator);
}
LeaveCriticalSection(&This->pin.filter->csFilter);
TRACE("--> %08x\n", hr);
return hr;
}
/* replaces OutputPin_DecommitAllocator */
HRESULT WINAPI BaseOutputPinImpl_Inactive(struct strmbase_source *This)
{
HRESULT hr;
TRACE("(%p)->()\n", This);
EnterCriticalSection(&This->pin.filter->csFilter);
{
if (!This->pin.peer || !This->pMemInputPin)
hr = VFW_E_NOT_CONNECTED;
else
hr = IMemAllocator_Decommit(This->pAllocator);
}
LeaveCriticalSection(&This->pin.filter->csFilter);
TRACE("--> %08x\n", hr);
return hr;
}
HRESULT WINAPI BaseOutputPinImpl_InitAllocator(struct strmbase_source *This, IMemAllocator **pMemAlloc)
{
return CoCreateInstance(&CLSID_MemoryAllocator, NULL, CLSCTX_INPROC_SERVER, &IID_IMemAllocator, (LPVOID*)pMemAlloc);
}
HRESULT WINAPI BaseOutputPinImpl_DecideAllocator(struct strmbase_source *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(struct strmbase_source *This,
IPin *pReceivePin, const AM_MEDIA_TYPE *pmt)
{
HRESULT hr;
IMemAllocator * pMemAlloc = NULL;
TRACE("(%p)->(%p, %p)\n", This, pReceivePin, pmt);
dump_AM_MEDIA_TYPE(pmt);
if ((hr = This->pFuncsTable->base.pin_query_accept(&This->pin, pmt)) != S_OK)
return hr;
This->pin.peer = pReceivePin;
IPin_AddRef(pReceivePin);
CopyMediaType(&This->pin.mtCurrent, pmt);
hr = IPin_ReceiveConnection(pReceivePin, &This->pin.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 (SUCCEEDED(hr))
This->pAllocator = pMemAlloc;
else 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.peer);
This->pin.peer = NULL;
FreeMediaType(&This->pin.mtCurrent);
}
TRACE(" -- %x\n", hr);
return hr;
}
void strmbase_source_init(struct strmbase_source *pin, const IPinVtbl *vtbl, struct strmbase_filter *filter,
const WCHAR *name, const struct strmbase_source_ops *func_table)
{
memset(pin, 0, sizeof(*pin));
pin->pin.IPin_iface.lpVtbl = vtbl;
pin->pin.dRate = 1.0;
pin->pin.filter = filter;
pin->pin.dir = PINDIR_OUTPUT;
lstrcpyW(pin->pin.name, name);
pin->pin.pFuncsTable = &func_table->base;
pin->pFuncsTable = func_table;
}
void strmbase_source_cleanup(struct strmbase_source *pin)
{
FreeMediaType(&pin->pin.mtCurrent);
if (pin->pAllocator)
IMemAllocator_Release(pin->pAllocator);
pin->pAllocator = NULL;
}
/*** Input Pin implementation ***/
static inline BaseInputPin *impl_BaseInputPin_from_IPin( IPin *iface )
{
return CONTAINING_RECORD(iface, BaseInputPin, pin.IPin_iface);
}
HRESULT WINAPI BaseInputPinImpl_Connect(IPin *iface, IPin *pin, const AM_MEDIA_TYPE *pmt)
{
ERR("(%p)->(%p, %p) outgoing connection on an input pin!\n", iface, pin, 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, %p)\n", This, pReceivePin, pmt);
dump_AM_MEDIA_TYPE(pmt);
EnterCriticalSection(&This->pin.filter->csFilter);
{
if (This->pin.peer)
hr = VFW_E_ALREADY_CONNECTED;
if (SUCCEEDED(hr) && This->pin.pFuncsTable->pin_query_accept(&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.peer = pReceivePin;
IPin_AddRef(pReceivePin);
}
}
LeaveCriticalSection(&This->pin.filter->csFilter);
return hr;
}
static HRESULT deliver_endofstream(IPin* pin, LPVOID unused)
{
return IPin_EndOfStream( pin );
}
HRESULT WINAPI BaseInputPinImpl_EndOfStream(IPin * iface)
{
HRESULT hr = S_OK;
BaseInputPin *This = impl_BaseInputPin_from_IPin(iface);
TRACE("(%p)->()\n", This);
EnterCriticalSection(&This->pin.filter->csFilter);
if (This->flushing)
hr = S_FALSE;
else
This->end_of_stream = TRUE;
LeaveCriticalSection(&This->pin.filter->csFilter);
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("(%p) semi-stub\n", This);
EnterCriticalSection(&This->pin.filter->csFilter);
This->flushing = TRUE;
hr = SendFurther( iface, deliver_beginflush, NULL, NULL );
LeaveCriticalSection(&This->pin.filter->csFilter);
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.filter->csFilter);
This->flushing = This->end_of_stream = FALSE;
hr = SendFurther( iface, deliver_endflush, NULL, NULL );
LeaveCriticalSection(&This->pin.filter->csFilter);
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("(%p)->(%s, %s, %e)\n", This, wine_dbgstr_longlong(tStart), wine_dbgstr_longlong(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 );
}
/*** 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
};
void strmbase_sink_init(BaseInputPin *pin, const IPinVtbl *vtbl, struct strmbase_filter *filter,
const WCHAR *name, const BaseInputPinFuncTable *func_table, IMemAllocator *allocator)
{
memset(pin, 0, sizeof(*pin));
pin->pin.IPin_iface.lpVtbl = vtbl;
pin->pin.dRate = 1.0;
pin->pin.filter = filter;
pin->pin.dir = PINDIR_INPUT;
lstrcpyW(pin->pin.name, name);
pin->pin.pFuncsTable = &func_table->base;
pin->pFuncsTable = func_table;
pin->pAllocator = pin->preferred_allocator = allocator;
if (pin->preferred_allocator)
IMemAllocator_AddRef(pin->preferred_allocator);
pin->IMemInputPin_iface.lpVtbl = &MemInputPin_Vtbl;
}
void strmbase_sink_cleanup(BaseInputPin *pin)
{
FreeMediaType(&pin->pin.mtCurrent);
if (pin->pAllocator)
IMemAllocator_Release(pin->pAllocator);
pin->pAllocator = NULL;
pin->pin.IPin_iface.lpVtbl = NULL;
}
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