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https://github.com/FFmpeg/FFmpeg.git
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790f793844
There are lots of files that don't need it: The number of object files that actually need it went down from 2011 to 884 here. Keep it for external users in order to not cause breakages. Also improve the other headers a bit while just at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
102 lines
3.4 KiB
C
102 lines
3.4 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 "libavutil/mem.h"
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#include "dshow_capture.h"
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DECLARE_QUERYINTERFACE(enummediatypes, DShowEnumMediaTypes,
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{ {&IID_IUnknown,0}, {&IID_IEnumMediaTypes,0} })
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DECLARE_ADDREF(enummediatypes, DShowEnumMediaTypes)
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DECLARE_RELEASE(enummediatypes, DShowEnumMediaTypes)
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long WINAPI ff_dshow_enummediatypes_Next(DShowEnumMediaTypes *this, unsigned long n,
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AM_MEDIA_TYPE **types, unsigned long *fetched)
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{
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int count = 0;
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dshowdebug("ff_dshow_enummediatypes_Next(%p)\n", this);
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if (!types)
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return E_POINTER;
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if (!this->pos && n == 1) {
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if (!IsEqualGUID(&this->type.majortype, &GUID_NULL)) {
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AM_MEDIA_TYPE *type = av_malloc(sizeof(AM_MEDIA_TYPE));
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if (!type)
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return E_OUTOFMEMORY;
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ff_copy_dshow_media_type(type, &this->type);
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*types = type;
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count = 1;
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}
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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 WINAPI ff_dshow_enummediatypes_Skip(DShowEnumMediaTypes *this, unsigned long n)
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{
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dshowdebug("ff_dshow_enummediatypes_Skip(%p)\n", this);
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if (n) /* Any skip will always fall outside of the only valid type. */
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return S_FALSE;
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return S_OK;
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}
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long WINAPI ff_dshow_enummediatypes_Reset(DShowEnumMediaTypes *this)
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{
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dshowdebug("ff_dshow_enummediatypes_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 WINAPI ff_dshow_enummediatypes_Clone(DShowEnumMediaTypes *this, DShowEnumMediaTypes **enums)
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{
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DShowEnumMediaTypes *new;
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dshowdebug("ff_dshow_enummediatypes_Clone(%p)\n", this);
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if (!enums)
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return E_POINTER;
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new = ff_dshow_enummediatypes_Create(&this->type);
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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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*enums = new;
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return S_OK;
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}
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static int ff_dshow_enummediatypes_Setup(DShowEnumMediaTypes *this, const AM_MEDIA_TYPE *type)
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{
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IEnumMediaTypesVtbl *vtbl = this->vtbl;
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SETVTBL(vtbl, enummediatypes, QueryInterface);
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SETVTBL(vtbl, enummediatypes, AddRef);
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SETVTBL(vtbl, enummediatypes, Release);
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SETVTBL(vtbl, enummediatypes, Next);
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SETVTBL(vtbl, enummediatypes, Skip);
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SETVTBL(vtbl, enummediatypes, Reset);
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SETVTBL(vtbl, enummediatypes, Clone);
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if (!type) {
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this->type.majortype = GUID_NULL;
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} else {
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ff_copy_dshow_media_type(&this->type, type);
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}
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return 1;
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}
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DECLARE_CREATE(enummediatypes, DShowEnumMediaTypes, ff_dshow_enummediatypes_Setup(this, type), const AM_MEDIA_TYPE *type)
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DECLARE_DESTROY(enummediatypes, DShowEnumMediaTypes, nothing)
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