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- /*
- * DirectShow capture interface
- * Copyright (c) 2010 Ramiro Polla
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- #include "dshow_capture.h"
- DECLARE_QUERYINTERFACE(filter, DShowFilter,
- { {&IID_IUnknown,0}, {&IID_IBaseFilter,0} })
- DECLARE_ADDREF(filter, DShowFilter)
- DECLARE_RELEASE(filter, DShowFilter)
- long WINAPI ff_dshow_filter_GetClassID(DShowFilter *this, CLSID *id)
- {
- dshowdebug("ff_dshow_filter_GetClassID(%p)\n", this);
- /* I'm not creating a ClassID just for this. */
- return E_FAIL;
- }
- long WINAPI ff_dshow_filter_Stop(DShowFilter *this)
- {
- dshowdebug("ff_dshow_filter_Stop(%p)\n", this);
- this->state = State_Stopped;
- return S_OK;
- }
- long WINAPI ff_dshow_filter_Pause(DShowFilter *this)
- {
- dshowdebug("ff_dshow_filter_Pause(%p)\n", this);
- this->state = State_Paused;
- return S_OK;
- }
- long WINAPI ff_dshow_filter_Run(DShowFilter *this, REFERENCE_TIME start)
- {
- dshowdebug("ff_dshow_filter_Run(%p) %"PRId64"\n", this, start);
- this->state = State_Running;
- this->start_time = start;
- return S_OK;
- }
- long WINAPI ff_dshow_filter_GetState(DShowFilter *this, DWORD ms, FILTER_STATE *state)
- {
- dshowdebug("ff_dshow_filter_GetState(%p)\n", this);
- if (!state)
- return E_POINTER;
- *state = this->state;
- return S_OK;
- }
- long WINAPI ff_dshow_filter_SetSyncSource(DShowFilter *this, IReferenceClock *clock)
- {
- dshowdebug("ff_dshow_filter_SetSyncSource(%p)\n", this);
- if (this->clock != clock) {
- if (this->clock)
- IReferenceClock_Release(this->clock);
- this->clock = clock;
- if (clock)
- IReferenceClock_AddRef(clock);
- }
- return S_OK;
- }
- long WINAPI ff_dshow_filter_GetSyncSource(DShowFilter *this, IReferenceClock **clock)
- {
- dshowdebug("ff_dshow_filter_GetSyncSource(%p)\n", this);
- if (!clock)
- return E_POINTER;
- if (this->clock)
- IReferenceClock_AddRef(this->clock);
- *clock = this->clock;
- return S_OK;
- }
- long WINAPI ff_dshow_filter_EnumPins(DShowFilter *this, IEnumPins **enumpin)
- {
- DShowEnumPins *new;
- dshowdebug("ff_dshow_filter_EnumPins(%p)\n", this);
- if (!enumpin)
- return E_POINTER;
- new = ff_dshow_enumpins_Create(this->pin, this);
- if (!new)
- return E_OUTOFMEMORY;
- *enumpin = (IEnumPins *) new;
- return S_OK;
- }
- long WINAPI ff_dshow_filter_FindPin(DShowFilter *this, const wchar_t *id, IPin **pin)
- {
- DShowPin *found = NULL;
- dshowdebug("ff_dshow_filter_FindPin(%p)\n", this);
- if (!id || !pin)
- return E_POINTER;
- if (!wcscmp(id, L"In")) {
- found = this->pin;
- ff_dshow_pin_AddRef(found);
- }
- *pin = (IPin *) found;
- if (!found)
- return VFW_E_NOT_FOUND;
- return S_OK;
- }
- long WINAPI ff_dshow_filter_QueryFilterInfo(DShowFilter *this, FILTER_INFO *info)
- {
- dshowdebug("ff_dshow_filter_QueryFilterInfo(%p)\n", this);
- if (!info)
- return E_POINTER;
- if (this->info.pGraph)
- IFilterGraph_AddRef(this->info.pGraph);
- *info = this->info;
- return S_OK;
- }
- long WINAPI ff_dshow_filter_JoinFilterGraph(DShowFilter *this, IFilterGraph *graph,
- const wchar_t *name)
- {
- dshowdebug("ff_dshow_filter_JoinFilterGraph(%p)\n", this);
- this->info.pGraph = graph;
- if (name)
- wcscpy_s(this->info.achName, sizeof(this->info.achName) / sizeof(wchar_t), name);
- return S_OK;
- }
- long WINAPI ff_dshow_filter_QueryVendorInfo(DShowFilter *this, wchar_t **info)
- {
- dshowdebug("ff_dshow_filter_QueryVendorInfo(%p)\n", this);
- if (!info)
- return E_POINTER;
- return E_NOTIMPL; /* don't have to do anything here */
- }
- static int
- ff_dshow_filter_Setup(DShowFilter *this, void *priv_data, void *callback,
- enum dshowDeviceType type)
- {
- IBaseFilterVtbl *vtbl = this->vtbl;
- SETVTBL(vtbl, filter, QueryInterface);
- SETVTBL(vtbl, filter, AddRef);
- SETVTBL(vtbl, filter, Release);
- SETVTBL(vtbl, filter, GetClassID);
- SETVTBL(vtbl, filter, Stop);
- SETVTBL(vtbl, filter, Pause);
- SETVTBL(vtbl, filter, Run);
- SETVTBL(vtbl, filter, GetState);
- SETVTBL(vtbl, filter, SetSyncSource);
- SETVTBL(vtbl, filter, GetSyncSource);
- SETVTBL(vtbl, filter, EnumPins);
- SETVTBL(vtbl, filter, FindPin);
- SETVTBL(vtbl, filter, QueryFilterInfo);
- SETVTBL(vtbl, filter, JoinFilterGraph);
- SETVTBL(vtbl, filter, QueryVendorInfo);
- this->pin = ff_dshow_pin_Create(this);
- this->priv_data = priv_data;
- this->callback = callback;
- this->type = type;
- return 1;
- }
- static int ff_dshow_filter_Cleanup(DShowFilter *this)
- {
- ff_dshow_pin_Release(this->pin);
- return 1;
- }
- DECLARE_CREATE(filter, DShowFilter, ff_dshow_filter_Setup(this, priv_data, callback, type),
- void *priv_data, void *callback, enum dshowDeviceType type)
- DECLARE_DESTROY(filter, DShowFilter, ff_dshow_filter_Cleanup)
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