145 lines
4.3 KiB
C
145 lines
4.3 KiB
C
/*
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* DMO wrapper filter
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*
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* Copyright (C) 2019 Zebediah Figura
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "qasf_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(qasf);
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struct dmo_wrapper
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{
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struct strmbase_filter filter;
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IDMOWrapperFilter IDMOWrapperFilter_iface;
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IUnknown *dmo;
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};
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static inline struct dmo_wrapper *impl_from_strmbase_filter(struct strmbase_filter *iface)
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{
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return CONTAINING_RECORD(iface, struct dmo_wrapper, filter);
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}
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static inline struct dmo_wrapper *impl_from_IDMOWrapperFilter(IDMOWrapperFilter *iface)
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{
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return CONTAINING_RECORD(iface, struct dmo_wrapper, IDMOWrapperFilter_iface);
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}
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static HRESULT WINAPI dmo_wrapper_filter_QueryInterface(IDMOWrapperFilter *iface, REFIID iid, void **out)
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{
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struct dmo_wrapper *filter = impl_from_IDMOWrapperFilter(iface);
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return IUnknown_QueryInterface(filter->filter.outer_unk, iid, out);
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}
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static ULONG WINAPI dmo_wrapper_filter_AddRef(IDMOWrapperFilter *iface)
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{
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struct dmo_wrapper *filter = impl_from_IDMOWrapperFilter(iface);
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return IUnknown_AddRef(filter->filter.outer_unk);
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}
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static ULONG WINAPI dmo_wrapper_filter_Release(IDMOWrapperFilter *iface)
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{
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struct dmo_wrapper *filter = impl_from_IDMOWrapperFilter(iface);
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return IUnknown_Release(filter->filter.outer_unk);
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}
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static HRESULT WINAPI dmo_wrapper_filter_Init(IDMOWrapperFilter *iface, REFCLSID clsid, REFCLSID category)
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{
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struct dmo_wrapper *filter = impl_from_IDMOWrapperFilter(iface);
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IUnknown *unk;
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HRESULT hr;
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TRACE("filter %p, clsid %s, category %s.\n", filter, debugstr_guid(clsid), debugstr_guid(category));
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if (FAILED(hr = CoCreateInstance(clsid, &filter->filter.IUnknown_inner,
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CLSCTX_INPROC_SERVER, &IID_IUnknown, (void **)&unk)))
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return hr;
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EnterCriticalSection(&filter->filter.csFilter);
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filter->dmo = unk;
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LeaveCriticalSection(&filter->filter.csFilter);
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return S_OK;
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}
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static const IDMOWrapperFilterVtbl dmo_wrapper_filter_vtbl =
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{
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dmo_wrapper_filter_QueryInterface,
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dmo_wrapper_filter_AddRef,
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dmo_wrapper_filter_Release,
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dmo_wrapper_filter_Init,
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};
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static struct strmbase_pin *dmo_wrapper_get_pin(struct strmbase_filter *iface, unsigned int index)
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{
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return NULL;
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}
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static void dmo_wrapper_destroy(struct strmbase_filter *iface)
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{
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struct dmo_wrapper *filter = impl_from_strmbase_filter(iface);
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if (filter->dmo)
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IUnknown_Release(filter->dmo);
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strmbase_filter_cleanup(&filter->filter);
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free(filter);
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}
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static HRESULT dmo_wrapper_query_interface(struct strmbase_filter *iface, REFIID iid, void **out)
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{
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struct dmo_wrapper *filter = impl_from_strmbase_filter(iface);
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if (IsEqualGUID(iid, &IID_IDMOWrapperFilter))
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{
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*out = &filter->IDMOWrapperFilter_iface;
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IUnknown_AddRef((IUnknown *)*out);
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return S_OK;
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}
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if (filter->dmo && !IsEqualGUID(iid, &IID_IUnknown))
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return IUnknown_QueryInterface(filter->dmo, iid, out);
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return E_NOINTERFACE;
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}
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static struct strmbase_filter_ops filter_ops =
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{
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.filter_get_pin = dmo_wrapper_get_pin,
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.filter_destroy = dmo_wrapper_destroy,
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.filter_query_interface = dmo_wrapper_query_interface,
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};
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HRESULT dmo_wrapper_create(IUnknown *outer, IUnknown **out)
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{
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struct dmo_wrapper *object;
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if (!(object = calloc(sizeof(*object), 1)))
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return E_OUTOFMEMORY;
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/* Always pass NULL as the outer object; see test_aggregation(). */
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strmbase_filter_init(&object->filter, NULL, &CLSID_DMOWrapperFilter, &filter_ops);
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object->IDMOWrapperFilter_iface.lpVtbl = &dmo_wrapper_filter_vtbl;
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TRACE("Created DMO wrapper %p.\n", object);
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*out = &object->filter.IUnknown_inner;
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return S_OK;
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}
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