Sweden-Number/dlls/qcap/vfwcapture.c

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/* Video For Windows Steering structure
*
* Copyright 2005 Maarten Lankhorst
*
* 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
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*
*/
#define COBJMACROS
#include "config.h"
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wtypes.h"
#include "wingdi.h"
#include "winuser.h"
#include "dshow.h"
#include "qcap_main.h"
#include "wine/debug.h"
#include "capture.h"
#include "uuids.h"
#include "vfwmsgs.h"
#include "amvideo.h"
#include "strmif.h"
#include "ddraw.h"
#include "ocidl.h"
#include "oleauto.h"
WINE_DEFAULT_DEBUG_CHANNEL(qcap);
typedef struct VfwCapture
{
struct strmbase_filter filter;
IAMStreamConfig IAMStreamConfig_iface;
IAMVideoControl IAMVideoControl_iface;
IAMVideoProcAmp IAMVideoProcAmp_iface;
IAMFilterMiscFlags IAMFilterMiscFlags_iface;
IPersistPropertyBag IPersistPropertyBag_iface;
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BOOL init;
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Capture *driver_info;
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struct strmbase_source source;
IKsPropertySet IKsPropertySet_iface;
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} VfwCapture;
static inline VfwCapture *impl_from_strmbase_filter(struct strmbase_filter *iface)
{
return CONTAINING_RECORD(iface, VfwCapture, filter);
}
static inline VfwCapture *impl_from_IAMStreamConfig(IAMStreamConfig *iface)
{
return CONTAINING_RECORD(iface, VfwCapture, IAMStreamConfig_iface);
}
static inline VfwCapture *impl_from_IAMVideoControl(IAMVideoControl *iface)
{
return CONTAINING_RECORD(iface, VfwCapture, IAMVideoControl_iface);
}
static inline VfwCapture *impl_from_IAMVideoProcAmp(IAMVideoProcAmp *iface)
{
return CONTAINING_RECORD(iface, VfwCapture, IAMVideoProcAmp_iface);
}
static inline VfwCapture *impl_from_IAMFilterMiscFlags(IAMFilterMiscFlags *iface)
{
return CONTAINING_RECORD(iface, VfwCapture, IAMFilterMiscFlags_iface);
}
static inline VfwCapture *impl_from_IPersistPropertyBag(IPersistPropertyBag *iface)
{
return CONTAINING_RECORD(iface, VfwCapture, IPersistPropertyBag_iface);
}
static struct strmbase_pin *vfw_capture_get_pin(struct strmbase_filter *iface, unsigned int index)
{
VfwCapture *This = impl_from_strmbase_filter(iface);
if (index >= 1)
return NULL;
return &This->source.pin;
}
static void vfw_capture_destroy(struct strmbase_filter *iface)
{
VfwCapture *filter = impl_from_strmbase_filter(iface);
if (filter->init)
{
if (filter->filter.state != State_Stopped)
qcap_driver_stop_stream(filter->driver_info);
qcap_driver_destroy(filter->driver_info);
}
if (filter->source.pin.peer)
{
IPin_Disconnect(filter->source.pin.peer);
IPin_Disconnect(&filter->source.pin.IPin_iface);
}
strmbase_source_cleanup(&filter->source);
strmbase_filter_cleanup(&filter->filter);
CoTaskMemFree(filter);
ObjectRefCount(FALSE);
}
static HRESULT vfw_capture_query_interface(struct strmbase_filter *iface, REFIID iid, void **out)
{
VfwCapture *filter = impl_from_strmbase_filter(iface);
if (IsEqualGUID(iid, &IID_IPersistPropertyBag))
*out = &filter->IPersistPropertyBag_iface;
else if (IsEqualGUID(iid, &IID_IAMVideoControl))
*out = &filter->IAMVideoControl_iface;
else if (IsEqualGUID(iid, &IID_IAMVideoProcAmp))
*out = &filter->IAMVideoProcAmp_iface;
else if (IsEqualGUID(iid, &IID_IAMFilterMiscFlags))
*out = &filter->IAMFilterMiscFlags_iface;
else
return E_NOINTERFACE;
IUnknown_AddRef((IUnknown *)*out);
return S_OK;
}
static HRESULT vfw_capture_init_stream(struct strmbase_filter *iface)
{
VfwCapture *filter = impl_from_strmbase_filter(iface);
qcap_driver_init_stream(filter->driver_info);
return VFW_S_CANT_CUE;
}
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static HRESULT vfw_capture_start_stream(struct strmbase_filter *iface, REFERENCE_TIME time)
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{
VfwCapture *filter = impl_from_strmbase_filter(iface);
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qcap_driver_start_stream(filter->driver_info);
return S_OK;
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}
static HRESULT vfw_capture_stop_stream(struct strmbase_filter *iface)
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{
VfwCapture *filter = impl_from_strmbase_filter(iface);
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qcap_driver_stop_stream(filter->driver_info);
return VFW_S_CANT_CUE;
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}
static HRESULT vfw_capture_cleanup_stream(struct strmbase_filter *iface)
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{
VfwCapture *filter = impl_from_strmbase_filter(iface);
qcap_driver_cleanup_stream(filter->driver_info);
return S_OK;
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}
static const struct strmbase_filter_ops filter_ops =
{
.filter_get_pin = vfw_capture_get_pin,
.filter_destroy = vfw_capture_destroy,
.filter_query_interface = vfw_capture_query_interface,
.filter_init_stream = vfw_capture_init_stream,
.filter_start_stream = vfw_capture_start_stream,
.filter_stop_stream = vfw_capture_stop_stream,
.filter_cleanup_stream = vfw_capture_cleanup_stream,
};
static HRESULT WINAPI AMStreamConfig_QueryInterface(IAMStreamConfig *iface, REFIID iid, void **out)
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{
VfwCapture *filter = impl_from_IAMStreamConfig(iface);
return IPin_QueryInterface(&filter->source.pin.IPin_iface, iid, out);
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}
static ULONG WINAPI AMStreamConfig_AddRef(IAMStreamConfig *iface)
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{
VfwCapture *filter = impl_from_IAMStreamConfig(iface);
return IPin_AddRef(&filter->source.pin.IPin_iface);
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}
static ULONG WINAPI AMStreamConfig_Release(IAMStreamConfig *iface)
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{
VfwCapture *filter = impl_from_IAMStreamConfig(iface);
return IPin_Release(&filter->source.pin.IPin_iface);
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}
static HRESULT WINAPI
AMStreamConfig_SetFormat(IAMStreamConfig *iface, AM_MEDIA_TYPE *pmt)
{
HRESULT hr;
VfwCapture *This = impl_from_IAMStreamConfig(iface);
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TRACE("filter %p, mt %p.\n", This, pmt);
strmbase_dump_media_type(pmt);
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if (This->filter.state != State_Stopped)
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{
TRACE("Returning not stopped error\n");
return VFW_E_NOT_STOPPED;
}
if (!pmt)
{
TRACE("pmt is NULL\n");
return E_POINTER;
}
if (!IsEqualGUID(&pmt->majortype, &MEDIATYPE_Video))
return E_FAIL;
if (This->source.pin.peer)
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{
hr = IPin_QueryAccept(This->source.pin.peer, pmt);
TRACE("Would accept: %d\n", hr);
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if (hr == S_FALSE)
return VFW_E_INVALIDMEDIATYPE;
}
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hr = qcap_driver_set_format(This->driver_info, pmt);
if (SUCCEEDED(hr) && This->filter.graph && This->source.pin.peer)
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{
hr = IFilterGraph_Reconnect(This->filter.graph, &This->source.pin.IPin_iface);
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if (SUCCEEDED(hr))
TRACE("Reconnection completed, with new media format..\n");
}
TRACE("Returning: %d\n", hr);
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return hr;
}
static HRESULT WINAPI
AMStreamConfig_GetFormat( IAMStreamConfig *iface, AM_MEDIA_TYPE **pmt )
{
VfwCapture *This = impl_from_IAMStreamConfig(iface);
HRESULT hr;
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TRACE("%p -> (%p)\n", iface, pmt);
hr = qcap_driver_get_format(This->driver_info, pmt);
if (SUCCEEDED(hr))
strmbase_dump_media_type(*pmt);
return hr;
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}
static HRESULT WINAPI AMStreamConfig_GetNumberOfCapabilities(IAMStreamConfig *iface,
int *count, int *size)
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{
VfwCapture *filter = impl_from_IAMStreamConfig(iface);
TRACE("filter %p, count %p, size %p.\n", filter, count, size);
if (!count || !size)
return E_POINTER;
*count = qcap_driver_get_caps_count(filter->driver_info);
*size = sizeof(VIDEO_STREAM_CONFIG_CAPS);
return S_OK;
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}
static HRESULT WINAPI AMStreamConfig_GetStreamCaps(IAMStreamConfig *iface,
int index, AM_MEDIA_TYPE **pmt, BYTE *vscc)
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{
VfwCapture *filter = impl_from_IAMStreamConfig(iface);
TRACE("filter %p, index %d, pmt %p, vscc %p.\n", filter, index, pmt, vscc);
return qcap_driver_get_caps(filter->driver_info, index, pmt, (VIDEO_STREAM_CONFIG_CAPS *)vscc);
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}
static const IAMStreamConfigVtbl IAMStreamConfig_VTable =
{
AMStreamConfig_QueryInterface,
AMStreamConfig_AddRef,
AMStreamConfig_Release,
AMStreamConfig_SetFormat,
AMStreamConfig_GetFormat,
AMStreamConfig_GetNumberOfCapabilities,
AMStreamConfig_GetStreamCaps
};
static HRESULT WINAPI AMVideoProcAmp_QueryInterface(IAMVideoProcAmp *iface, REFIID riid,
void **ret_iface)
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{
VfwCapture *This = impl_from_IAMVideoProcAmp(iface);
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return IUnknown_QueryInterface(This->filter.outer_unk, riid, ret_iface);
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}
static ULONG WINAPI AMVideoProcAmp_AddRef(IAMVideoProcAmp * iface)
{
VfwCapture *This = impl_from_IAMVideoProcAmp(iface);
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return IUnknown_AddRef(This->filter.outer_unk);
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}
static ULONG WINAPI AMVideoProcAmp_Release(IAMVideoProcAmp * iface)
{
VfwCapture *This = impl_from_IAMVideoProcAmp(iface);
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return IUnknown_Release(This->filter.outer_unk);
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}
static HRESULT WINAPI
AMVideoProcAmp_GetRange( IAMVideoProcAmp * iface, LONG Property, LONG *pMin,
LONG *pMax, LONG *pSteppingDelta, LONG *pDefault, LONG *pCapsFlags )
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{
VfwCapture *This = impl_from_IAMVideoProcAmp(iface);
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return qcap_driver_get_prop_range( This->driver_info, Property, pMin, pMax,
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pSteppingDelta, pDefault, pCapsFlags );
}
static HRESULT WINAPI
AMVideoProcAmp_Set( IAMVideoProcAmp * iface, LONG Property, LONG lValue,
LONG Flags )
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{
VfwCapture *This = impl_from_IAMVideoProcAmp(iface);
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return qcap_driver_set_prop(This->driver_info, Property, lValue, Flags);
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}
static HRESULT WINAPI
AMVideoProcAmp_Get( IAMVideoProcAmp * iface, LONG Property, LONG *lValue,
LONG *Flags )
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{
VfwCapture *This = impl_from_IAMVideoProcAmp(iface);
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return qcap_driver_get_prop(This->driver_info, Property, lValue, Flags);
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}
static const IAMVideoProcAmpVtbl IAMVideoProcAmp_VTable =
{
AMVideoProcAmp_QueryInterface,
AMVideoProcAmp_AddRef,
AMVideoProcAmp_Release,
AMVideoProcAmp_GetRange,
AMVideoProcAmp_Set,
AMVideoProcAmp_Get,
};
static HRESULT WINAPI PPB_QueryInterface(IPersistPropertyBag *iface, REFIID riid, void **ret_iface)
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{
VfwCapture *This = impl_from_IPersistPropertyBag(iface);
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return IUnknown_QueryInterface(This->filter.outer_unk, riid, ret_iface);
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}
static ULONG WINAPI PPB_AddRef(IPersistPropertyBag * iface)
{
VfwCapture *This = impl_from_IPersistPropertyBag(iface);
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return IUnknown_AddRef(This->filter.outer_unk);
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}
static ULONG WINAPI PPB_Release(IPersistPropertyBag * iface)
{
VfwCapture *This = impl_from_IPersistPropertyBag(iface);
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return IUnknown_Release(This->filter.outer_unk);
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}
static HRESULT WINAPI
PPB_GetClassID( IPersistPropertyBag * iface, CLSID * pClassID )
{
VfwCapture *This = impl_from_IPersistPropertyBag(iface);
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FIXME("%p - stub\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI PPB_InitNew(IPersistPropertyBag * iface)
{
VfwCapture *This = impl_from_IPersistPropertyBag(iface);
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FIXME("%p - stub\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI
PPB_Load( IPersistPropertyBag * iface, IPropertyBag *pPropBag,
IErrorLog *pErrorLog )
{
static const OLECHAR VFWIndex[] = {'V','F','W','I','n','d','e','x',0};
VfwCapture *This = impl_from_IPersistPropertyBag(iface);
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HRESULT hr;
VARIANT var;
TRACE("%p/%p-> (%p, %p)\n", iface, This, pPropBag, pErrorLog);
V_VT(&var) = VT_I4;
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hr = IPropertyBag_Read(pPropBag, VFWIndex, &var, pErrorLog);
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if (SUCCEEDED(hr))
{
This->driver_info = qcap_driver_init(&This->source, V_I4(&var));
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if (This->driver_info)
{
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This->init = TRUE;
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hr = S_OK;
}
else
hr = E_FAIL;
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}
return hr;
}
static HRESULT WINAPI
PPB_Save( IPersistPropertyBag * iface, IPropertyBag *pPropBag,
BOOL fClearDirty, BOOL fSaveAllProperties )
{
VfwCapture *This = impl_from_IPersistPropertyBag(iface);
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FIXME("%p - stub\n", This);
return E_NOTIMPL;
}
static const IPersistPropertyBagVtbl IPersistPropertyBag_VTable =
{
PPB_QueryInterface,
PPB_AddRef,
PPB_Release,
PPB_GetClassID,
PPB_InitNew,
PPB_Load,
PPB_Save
};
/* IKsPropertySet interface */
static inline VfwCapture *impl_from_IKsPropertySet(IKsPropertySet *iface)
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{
return CONTAINING_RECORD(iface, VfwCapture, IKsPropertySet_iface);
}
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static HRESULT WINAPI KSP_QueryInterface(IKsPropertySet * iface, REFIID riid, void **ret_iface)
{
VfwCapture *filter = impl_from_IKsPropertySet(iface);
return IPin_QueryInterface(&filter->source.pin.IPin_iface, riid, ret_iface);
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}
static ULONG WINAPI KSP_AddRef(IKsPropertySet * iface)
{
VfwCapture *filter = impl_from_IKsPropertySet(iface);
return IPin_AddRef(&filter->source.pin.IPin_iface);
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}
static ULONG WINAPI KSP_Release(IKsPropertySet * iface)
{
VfwCapture *filter = impl_from_IKsPropertySet(iface);
return IPin_Release(&filter->source.pin.IPin_iface);
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}
static HRESULT WINAPI
KSP_Set( IKsPropertySet * iface, REFGUID guidPropSet, DWORD dwPropID,
LPVOID pInstanceData, DWORD cbInstanceData, LPVOID pPropData,
DWORD cbPropData )
{
FIXME("%p: stub\n", iface);
return E_NOTIMPL;
}
static HRESULT WINAPI
KSP_Get( IKsPropertySet * iface, REFGUID guidPropSet, DWORD dwPropID,
LPVOID pInstanceData, DWORD cbInstanceData, LPVOID pPropData,
DWORD cbPropData, DWORD *pcbReturned )
{
LPGUID pGuid;
TRACE("()\n");
if (!IsEqualIID(guidPropSet, &AMPROPSETID_Pin))
return E_PROP_SET_UNSUPPORTED;
if (pPropData == NULL && pcbReturned == NULL)
return E_POINTER;
if (pcbReturned)
*pcbReturned = sizeof(GUID);
if (pPropData == NULL)
return S_OK;
if (cbPropData < sizeof(GUID))
return E_UNEXPECTED;
pGuid = pPropData;
*pGuid = PIN_CATEGORY_CAPTURE;
FIXME("() Not adding a pin with PIN_CATEGORY_PREVIEW\n");
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return S_OK;
}
static HRESULT WINAPI
KSP_QuerySupported( IKsPropertySet * iface, REFGUID guidPropSet,
DWORD dwPropID, DWORD *pTypeSupport )
{
FIXME("%p: stub\n", iface);
return E_NOTIMPL;
}
static const IKsPropertySetVtbl IKsPropertySet_VTable =
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{
KSP_QueryInterface,
KSP_AddRef,
KSP_Release,
KSP_Set,
KSP_Get,
KSP_QuerySupported
};
static inline VfwCapture *impl_from_strmbase_pin(struct strmbase_pin *pin)
{
return CONTAINING_RECORD(pin, VfwCapture, source.pin);
}
static HRESULT source_query_accept(struct strmbase_pin *pin, const AM_MEDIA_TYPE *mt)
{
VfwCapture *filter = impl_from_strmbase_pin(pin);
return qcap_driver_check_format(filter->driver_info, mt);
}
static HRESULT source_get_media_type(struct strmbase_pin *pin,
unsigned int index, AM_MEDIA_TYPE *pmt)
{
VfwCapture *filter = impl_from_strmbase_pin(pin);
AM_MEDIA_TYPE *vfw_pmt;
HRESULT hr;
if (index >= qcap_driver_get_caps_count(filter->driver_info))
return VFW_S_NO_MORE_ITEMS;
hr = qcap_driver_get_caps(filter->driver_info, index, &vfw_pmt, NULL);
if (SUCCEEDED(hr)) {
CopyMediaType(pmt, vfw_pmt);
DeleteMediaType(vfw_pmt);
}
return hr;
}
static HRESULT source_query_interface(struct strmbase_pin *iface, REFIID iid, void **out)
{
VfwCapture *filter = impl_from_strmbase_pin(iface);
if (IsEqualGUID(iid, &IID_IKsPropertySet))
*out = &filter->IKsPropertySet_iface;
else if (IsEqualGUID(iid, &IID_IAMStreamConfig))
*out = &filter->IAMStreamConfig_iface;
else
return E_NOINTERFACE;
IUnknown_AddRef((IUnknown *)*out);
return S_OK;
}
static HRESULT WINAPI VfwPin_DecideBufferSize(struct strmbase_source *iface,
IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
{
ALLOCATOR_PROPERTIES actual;
/* What we put here doesn't matter, the
driver function should override it then commit */
if (!ppropInputRequest->cBuffers)
ppropInputRequest->cBuffers = 3;
if (!ppropInputRequest->cbBuffer)
ppropInputRequest->cbBuffer = 230400;
if (!ppropInputRequest->cbAlign)
ppropInputRequest->cbAlign = 1;
return IMemAllocator_SetProperties(pAlloc, ppropInputRequest, &actual);
}
static const struct strmbase_source_ops source_ops =
{
.base.pin_query_accept = source_query_accept,
.base.pin_get_media_type = source_get_media_type,
.base.pin_query_interface = source_query_interface,
.pfnAttemptConnection = BaseOutputPinImpl_AttemptConnection,
.pfnDecideBufferSize = VfwPin_DecideBufferSize,
.pfnDecideAllocator = BaseOutputPinImpl_DecideAllocator,
};
static HRESULT WINAPI misc_flags_QueryInterface(IAMFilterMiscFlags *iface, REFIID riid, void **ppv)
{
VfwCapture *filter = impl_from_IAMFilterMiscFlags(iface);
return IUnknown_QueryInterface(filter->filter.outer_unk, riid, ppv);
}
static ULONG WINAPI misc_flags_AddRef(IAMFilterMiscFlags *iface)
{
VfwCapture *filter = impl_from_IAMFilterMiscFlags(iface);
return IUnknown_AddRef(filter->filter.outer_unk);
}
static ULONG WINAPI misc_flags_Release(IAMFilterMiscFlags *iface)
{
VfwCapture *filter = impl_from_IAMFilterMiscFlags(iface);
return IUnknown_Release(filter->filter.outer_unk);
}
static ULONG WINAPI misc_flags_GetMiscFlags(IAMFilterMiscFlags *iface)
{
return AM_FILTER_MISC_FLAGS_IS_SOURCE;
}
static const IAMFilterMiscFlagsVtbl IAMFilterMiscFlags_VTable =
{
misc_flags_QueryInterface,
misc_flags_AddRef,
misc_flags_Release,
misc_flags_GetMiscFlags
};
static HRESULT WINAPI video_control_QueryInterface(IAMVideoControl *iface, REFIID riid, void **ppv)
{
VfwCapture *filter = impl_from_IAMVideoControl(iface);
return IUnknown_QueryInterface(filter->filter.outer_unk, riid, ppv);
}
static ULONG WINAPI video_control_AddRef(IAMVideoControl *iface)
{
VfwCapture *filter = impl_from_IAMVideoControl(iface);
return IUnknown_AddRef(filter->filter.outer_unk);
}
static ULONG WINAPI video_control_Release(IAMVideoControl *iface)
{
VfwCapture *filter = impl_from_IAMVideoControl(iface);
return IUnknown_Release(filter->filter.outer_unk);
}
static HRESULT WINAPI video_control_GetCaps(IAMVideoControl *iface, IPin *pin, LONG *flags)
{
VfwCapture *filter = impl_from_IAMVideoControl(iface);
FIXME("filter %p, pin %p, flags %p: stub.\n", filter, pin, flags);
return E_NOTIMPL;
}
static HRESULT WINAPI video_control_SetMode(IAMVideoControl *iface, IPin *pin, LONG mode)
{
VfwCapture *filter = impl_from_IAMVideoControl(iface);
FIXME("filter %p, pin %p, mode %d: stub.\n", filter, pin, mode);
return E_NOTIMPL;
}
static HRESULT WINAPI video_control_GetMode(IAMVideoControl *iface, IPin *pin, LONG *mode)
{
VfwCapture *filter = impl_from_IAMVideoControl(iface);
FIXME("filter %p, pin %p, mode %p: stub.\n", filter, pin, mode);
return E_NOTIMPL;
}
static HRESULT WINAPI video_control_GetCurrentActualFrameRate(IAMVideoControl *iface, IPin *pin,
LONGLONG *frame_rate)
{
VfwCapture *filter = impl_from_IAMVideoControl(iface);
FIXME("filter %p, pin %p, frame rate %p: stub.\n", filter, pin, frame_rate);
return E_NOTIMPL;
}
static HRESULT WINAPI video_control_GetMaxAvailableFrameRate(IAMVideoControl *iface, IPin *pin,
LONG index, SIZE dimensions, LONGLONG *frame_rate)
{
VfwCapture *filter = impl_from_IAMVideoControl(iface);
FIXME("filter %p, pin %p, index %d, dimensions (%dx%d), frame rate %p: stub.\n",
filter, pin, index, dimensions.cx, dimensions.cy, frame_rate);
return E_NOTIMPL;
}
static HRESULT WINAPI video_control_GetFrameRateList(IAMVideoControl *iface, IPin *pin, LONG index,
SIZE dimensions, LONG *list_size, LONGLONG **frame_rate)
{
VfwCapture *filter = impl_from_IAMVideoControl(iface);
FIXME("filter %p, pin %p, index %d, dimensions (%dx%d), list size %p, frame rate: %p: stub.\n",
filter, pin, index, dimensions.cx, dimensions.cy, list_size, frame_rate);
return E_NOTIMPL;
}
static const IAMVideoControlVtbl IAMVideoControl_VTable =
{
video_control_QueryInterface,
video_control_AddRef,
video_control_Release,
video_control_GetCaps,
video_control_SetMode,
video_control_GetMode,
video_control_GetCurrentActualFrameRate,
video_control_GetMaxAvailableFrameRate,
video_control_GetFrameRateList
};
HRESULT vfw_capture_create(IUnknown *outer, IUnknown **out)
{
static const WCHAR source_name[] = {'O','u','t','p','u','t',0};
VfwCapture *object;
if (!(object = CoTaskMemAlloc(sizeof(*object))))
return E_OUTOFMEMORY;
strmbase_filter_init(&object->filter, outer, &CLSID_VfwCapture, &filter_ops);
object->IAMStreamConfig_iface.lpVtbl = &IAMStreamConfig_VTable;
object->IAMVideoControl_iface.lpVtbl = &IAMVideoControl_VTable;
object->IAMVideoProcAmp_iface.lpVtbl = &IAMVideoProcAmp_VTable;
object->IAMFilterMiscFlags_iface.lpVtbl = &IAMFilterMiscFlags_VTable;
object->IPersistPropertyBag_iface.lpVtbl = &IPersistPropertyBag_VTable;
object->init = FALSE;
strmbase_source_init(&object->source, &object->filter, source_name, &source_ops);
object->IKsPropertySet_iface.lpVtbl = &IKsPropertySet_VTable;
TRACE("Created VFW capture filter %p.\n", object);
ObjectRefCount(TRUE);
*out = &object->filter.IUnknown_inner;
return S_OK;
}