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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * DirectShow capture interface |
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| 3 | * Copyright (c) 2010 Ramiro Polla |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | #include "dshow_capture.h" |
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| 23 | |||
| 24 | DECLARE_QUERYINTERFACE(libAVEnumMediaTypes, |
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| 25 | { {&IID_IUnknown,0}, {&IID_IEnumPins,0} }) |
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| 26 | DECLARE_ADDREF(libAVEnumMediaTypes) |
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| 27 | DECLARE_RELEASE(libAVEnumMediaTypes) |
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| 28 | |||
| 29 | long WINAPI |
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| 30 | libAVEnumMediaTypes_Next(libAVEnumMediaTypes *this, unsigned long n, |
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| 31 | AM_MEDIA_TYPE **types, unsigned long *fetched) |
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| 32 | { |
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| 33 | int count = 0; |
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| 34 | dshowdebug("libAVEnumMediaTypes_Next(%p)\n", this); |
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| 35 | if (!types) |
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| 36 | return E_POINTER; |
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| 37 | if (!this->pos && n == 1) { |
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| 38 | if (!IsEqualGUID(&this->type.majortype, &GUID_NULL)) { |
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| 39 | AM_MEDIA_TYPE *type = av_malloc(sizeof(AM_MEDIA_TYPE)); |
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| 40 | ff_copy_dshow_media_type(type, &this->type); |
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| 41 | *types = type; |
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| 42 | count = 1; |
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| 43 | } |
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| 44 | this->pos = 1; |
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| 45 | } |
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| 46 | if (fetched) |
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| 47 | *fetched = count; |
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| 48 | if (!count) |
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| 49 | return S_FALSE; |
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| 50 | return S_OK; |
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| 51 | } |
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| 52 | long WINAPI |
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| 53 | libAVEnumMediaTypes_Skip(libAVEnumMediaTypes *this, unsigned long n) |
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| 54 | { |
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| 55 | dshowdebug("libAVEnumMediaTypes_Skip(%p)\n", this); |
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| 56 | if (n) /* Any skip will always fall outside of the only valid type. */ |
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| 57 | return S_FALSE; |
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| 58 | return S_OK; |
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| 59 | } |
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| 60 | long WINAPI |
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| 61 | libAVEnumMediaTypes_Reset(libAVEnumMediaTypes *this) |
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| 62 | { |
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| 63 | dshowdebug("libAVEnumMediaTypes_Reset(%p)\n", this); |
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| 64 | this->pos = 0; |
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| 65 | return S_OK; |
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| 66 | } |
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| 67 | long WINAPI |
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| 68 | libAVEnumMediaTypes_Clone(libAVEnumMediaTypes *this, libAVEnumMediaTypes **enums) |
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| 69 | { |
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| 70 | libAVEnumMediaTypes *new; |
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| 71 | dshowdebug("libAVEnumMediaTypes_Clone(%p)\n", this); |
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| 72 | if (!enums) |
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| 73 | return E_POINTER; |
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| 74 | new = libAVEnumMediaTypes_Create(&this->type); |
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| 75 | if (!new) |
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| 76 | return E_OUTOFMEMORY; |
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| 77 | new->pos = this->pos; |
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| 78 | *enums = new; |
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| 79 | return S_OK; |
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| 80 | } |
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| 81 | |||
| 82 | static int |
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| 83 | libAVEnumMediaTypes_Setup(libAVEnumMediaTypes *this, const AM_MEDIA_TYPE *type) |
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| 84 | { |
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| 85 | IEnumPinsVtbl *vtbl = this->vtbl; |
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| 86 | SETVTBL(vtbl, libAVEnumMediaTypes, QueryInterface); |
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| 87 | SETVTBL(vtbl, libAVEnumMediaTypes, AddRef); |
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| 88 | SETVTBL(vtbl, libAVEnumMediaTypes, Release); |
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| 89 | SETVTBL(vtbl, libAVEnumMediaTypes, Next); |
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| 90 | SETVTBL(vtbl, libAVEnumMediaTypes, Skip); |
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| 91 | SETVTBL(vtbl, libAVEnumMediaTypes, Reset); |
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| 92 | SETVTBL(vtbl, libAVEnumMediaTypes, Clone); |
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| 93 | |||
| 94 | if (!type) { |
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| 95 | this->type.majortype = GUID_NULL; |
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| 96 | } else { |
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| 97 | ff_copy_dshow_media_type(&this->type, type); |
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| 98 | } |
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| 99 | |||
| 100 | return 1; |
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| 101 | } |
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| 102 | DECLARE_CREATE(libAVEnumMediaTypes, libAVEnumMediaTypes_Setup(this, type), const AM_MEDIA_TYPE *type) |
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| 103 | DECLARE_DESTROY(libAVEnumMediaTypes, nothing) |