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Fixes: CID1591929 Copy into fixed size buffer Sponsored-by: Sovereign Tech Fund Reviewed-by: Roger Pack <rogerdpack@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
188 lines
5.5 KiB
C
188 lines
5.5 KiB
C
/*
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* DirectShow capture interface
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* Copyright (c) 2010 Ramiro Polla
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "dshow_capture.h"
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DECLARE_QUERYINTERFACE(filter, DShowFilter,
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{ {&IID_IUnknown,0}, {&IID_IBaseFilter,0} })
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DECLARE_ADDREF(filter, DShowFilter)
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DECLARE_RELEASE(filter, DShowFilter)
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long WINAPI ff_dshow_filter_GetClassID(DShowFilter *this, CLSID *id)
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{
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dshowdebug("ff_dshow_filter_GetClassID(%p)\n", this);
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/* I'm not creating a ClassID just for this. */
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return E_FAIL;
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}
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long WINAPI ff_dshow_filter_Stop(DShowFilter *this)
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{
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dshowdebug("ff_dshow_filter_Stop(%p)\n", this);
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this->state = State_Stopped;
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return S_OK;
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}
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long WINAPI ff_dshow_filter_Pause(DShowFilter *this)
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{
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dshowdebug("ff_dshow_filter_Pause(%p)\n", this);
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this->state = State_Paused;
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return S_OK;
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}
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long WINAPI ff_dshow_filter_Run(DShowFilter *this, REFERENCE_TIME start)
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{
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dshowdebug("ff_dshow_filter_Run(%p) %"PRId64"\n", this, start);
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this->state = State_Running;
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this->start_time = start;
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return S_OK;
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}
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long WINAPI ff_dshow_filter_GetState(DShowFilter *this, DWORD ms, FILTER_STATE *state)
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{
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dshowdebug("ff_dshow_filter_GetState(%p)\n", this);
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if (!state)
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return E_POINTER;
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*state = this->state;
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return S_OK;
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}
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long WINAPI ff_dshow_filter_SetSyncSource(DShowFilter *this, IReferenceClock *clock)
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{
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dshowdebug("ff_dshow_filter_SetSyncSource(%p)\n", this);
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if (this->clock != clock) {
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if (this->clock)
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IReferenceClock_Release(this->clock);
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this->clock = clock;
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if (clock)
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IReferenceClock_AddRef(clock);
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}
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return S_OK;
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}
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long WINAPI ff_dshow_filter_GetSyncSource(DShowFilter *this, IReferenceClock **clock)
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{
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dshowdebug("ff_dshow_filter_GetSyncSource(%p)\n", this);
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if (!clock)
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return E_POINTER;
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if (this->clock)
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IReferenceClock_AddRef(this->clock);
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*clock = this->clock;
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return S_OK;
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}
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long WINAPI ff_dshow_filter_EnumPins(DShowFilter *this, IEnumPins **enumpin)
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{
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DShowEnumPins *new;
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dshowdebug("ff_dshow_filter_EnumPins(%p)\n", this);
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if (!enumpin)
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return E_POINTER;
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new = ff_dshow_enumpins_Create(this->pin, this);
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if (!new)
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return E_OUTOFMEMORY;
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*enumpin = (IEnumPins *) new;
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return S_OK;
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}
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long WINAPI ff_dshow_filter_FindPin(DShowFilter *this, const wchar_t *id, IPin **pin)
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{
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DShowPin *found = NULL;
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dshowdebug("ff_dshow_filter_FindPin(%p)\n", this);
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if (!id || !pin)
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return E_POINTER;
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if (!wcscmp(id, L"In")) {
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found = this->pin;
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ff_dshow_pin_AddRef(found);
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}
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*pin = (IPin *) found;
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if (!found)
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return VFW_E_NOT_FOUND;
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return S_OK;
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}
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long WINAPI ff_dshow_filter_QueryFilterInfo(DShowFilter *this, FILTER_INFO *info)
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{
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dshowdebug("ff_dshow_filter_QueryFilterInfo(%p)\n", this);
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if (!info)
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return E_POINTER;
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if (this->info.pGraph)
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IFilterGraph_AddRef(this->info.pGraph);
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*info = this->info;
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return S_OK;
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}
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long WINAPI ff_dshow_filter_JoinFilterGraph(DShowFilter *this, IFilterGraph *graph,
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const wchar_t *name)
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{
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dshowdebug("ff_dshow_filter_JoinFilterGraph(%p)\n", this);
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this->info.pGraph = graph;
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if (name)
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wcscpy_s(this->info.achName, sizeof(this->info.achName) / sizeof(wchar_t), name);
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return S_OK;
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}
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long WINAPI ff_dshow_filter_QueryVendorInfo(DShowFilter *this, wchar_t **info)
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{
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dshowdebug("ff_dshow_filter_QueryVendorInfo(%p)\n", this);
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if (!info)
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return E_POINTER;
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return E_NOTIMPL; /* don't have to do anything here */
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}
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static int
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ff_dshow_filter_Setup(DShowFilter *this, void *priv_data, void *callback,
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enum dshowDeviceType type)
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{
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IBaseFilterVtbl *vtbl = this->vtbl;
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SETVTBL(vtbl, filter, QueryInterface);
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SETVTBL(vtbl, filter, AddRef);
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SETVTBL(vtbl, filter, Release);
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SETVTBL(vtbl, filter, GetClassID);
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SETVTBL(vtbl, filter, Stop);
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SETVTBL(vtbl, filter, Pause);
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SETVTBL(vtbl, filter, Run);
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SETVTBL(vtbl, filter, GetState);
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SETVTBL(vtbl, filter, SetSyncSource);
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SETVTBL(vtbl, filter, GetSyncSource);
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SETVTBL(vtbl, filter, EnumPins);
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SETVTBL(vtbl, filter, FindPin);
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SETVTBL(vtbl, filter, QueryFilterInfo);
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SETVTBL(vtbl, filter, JoinFilterGraph);
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SETVTBL(vtbl, filter, QueryVendorInfo);
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this->pin = ff_dshow_pin_Create(this);
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this->priv_data = priv_data;
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this->callback = callback;
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this->type = type;
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return 1;
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}
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static int ff_dshow_filter_Cleanup(DShowFilter *this)
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{
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ff_dshow_pin_Release(this->pin);
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return 1;
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}
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DECLARE_CREATE(filter, DShowFilter, ff_dshow_filter_Setup(this, priv_data, callback, type),
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void *priv_data, void *callback, enum dshowDeviceType type)
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DECLARE_DESTROY(filter, DShowFilter, ff_dshow_filter_Cleanup)
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