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99 lines
3.0 KiB
99 lines
3.0 KiB
/* |
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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(enumpins, DShowEnumPins, |
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{ {&IID_IUnknown,0}, {&IID_IEnumPins,0} }) |
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DECLARE_ADDREF(enumpins, DShowEnumPins) |
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DECLARE_RELEASE(enumpins, DShowEnumPins) |
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long ff_dshow_enumpins_Next(DShowEnumPins *this, unsigned long n, IPin **pins, |
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unsigned long *fetched) |
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{ |
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int count = 0; |
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dshowdebug("ff_dshow_enumpins_Next(%p)\n", this); |
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if (!pins) |
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return E_POINTER; |
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if (!this->pos && n == 1) { |
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ff_dshow_pin_AddRef(this->pin); |
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*pins = (IPin *) this->pin; |
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count = 1; |
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this->pos = 1; |
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} |
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if (fetched) |
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*fetched = count; |
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if (!count) |
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return S_FALSE; |
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return S_OK; |
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} |
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long ff_dshow_enumpins_Skip(DShowEnumPins *this, unsigned long n) |
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{ |
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dshowdebug("ff_dshow_enumpins_Skip(%p)\n", this); |
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if (n) /* Any skip will always fall outside of the only valid pin. */ |
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return S_FALSE; |
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return S_OK; |
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} |
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long ff_dshow_enumpins_Reset(DShowEnumPins *this) |
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{ |
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dshowdebug("ff_dshow_enumpins_Reset(%p)\n", this); |
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this->pos = 0; |
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return S_OK; |
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} |
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long ff_dshow_enumpins_Clone(DShowEnumPins *this, DShowEnumPins **pins) |
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{ |
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DShowEnumPins *new; |
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dshowdebug("ff_dshow_enumpins_Clone(%p)\n", this); |
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if (!pins) |
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return E_POINTER; |
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new = ff_dshow_enumpins_Create(this->pin, this->filter); |
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if (!new) |
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return E_OUTOFMEMORY; |
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new->pos = this->pos; |
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*pins = new; |
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return S_OK; |
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} |
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static int ff_dshow_enumpins_Setup(DShowEnumPins *this, DShowPin *pin, DShowFilter *filter) |
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{ |
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IEnumPinsVtbl *vtbl = this->vtbl; |
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SETVTBL(vtbl, enumpins, QueryInterface); |
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SETVTBL(vtbl, enumpins, AddRef); |
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SETVTBL(vtbl, enumpins, Release); |
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SETVTBL(vtbl, enumpins, Next); |
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SETVTBL(vtbl, enumpins, Skip); |
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SETVTBL(vtbl, enumpins, Reset); |
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SETVTBL(vtbl, enumpins, Clone); |
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this->pin = pin; |
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this->filter = filter; |
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ff_dshow_filter_AddRef(this->filter); |
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return 1; |
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} |
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static int ff_dshow_enumpins_Cleanup(DShowEnumPins *this) |
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{ |
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ff_dshow_filter_Release(this->filter); |
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return 1; |
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} |
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DECLARE_CREATE(enumpins, DShowEnumPins, ff_dshow_enumpins_Setup(this, pin, filter), |
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DShowPin *pin, DShowFilter *filter) |
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DECLARE_DESTROY(enumpins, DShowEnumPins, ff_dshow_enumpins_Cleanup)
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