| 1 | /* |
| 2 | * DirectShow capture interface |
| 3 | * Copyright (c) 2010 Ramiro Polla |
| 4 | * |
| 5 | * This file is part of FFmpeg. |
| 6 | * |
| 7 | * FFmpeg is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2.1 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with FFmpeg; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | #include "dshow_capture.h" |
| 23 | |
| 24 | DECLARE_QUERYINTERFACE(libAVFilter, |
| 25 | { {&IID_IUnknown,0}, {&IID_IBaseFilter,0} }) |
| 26 | DECLARE_ADDREF(libAVFilter) |
| 27 | DECLARE_RELEASE(libAVFilter) |
| 28 | |
| 29 | long WINAPI |
| 30 | libAVFilter_GetClassID(libAVFilter *this, CLSID *id) |
| 31 | { |
| 32 | dshowdebug("libAVFilter_GetClassID(%p)\n", this); |
| 33 | /* I'm not creating a ClassID just for this. */ |
| 34 | return E_FAIL; |
| 35 | } |
| 36 | long WINAPI |
| 37 | libAVFilter_Stop(libAVFilter *this) |
| 38 | { |
| 39 | dshowdebug("libAVFilter_Stop(%p)\n", this); |
| 40 | this->state = State_Stopped; |
| 41 | return S_OK; |
| 42 | } |
| 43 | long WINAPI |
| 44 | libAVFilter_Pause(libAVFilter *this) |
| 45 | { |
| 46 | dshowdebug("libAVFilter_Pause(%p)\n", this); |
| 47 | this->state = State_Paused; |
| 48 | return S_OK; |
| 49 | } |
| 50 | long WINAPI |
| 51 | libAVFilter_Run(libAVFilter *this, REFERENCE_TIME start) |
| 52 | { |
| 53 | dshowdebug("libAVFilter_Run(%p) %"PRId64"\n", this, start); |
| 54 | this->state = State_Running; |
| 55 | this->start_time = start; |
| 56 | return S_OK; |
| 57 | } |
| 58 | long WINAPI |
| 59 | libAVFilter_GetState(libAVFilter *this, DWORD ms, FILTER_STATE *state) |
| 60 | { |
| 61 | dshowdebug("libAVFilter_GetState(%p)\n", this); |
| 62 | if (!state) |
| 63 | return E_POINTER; |
| 64 | *state = this->state; |
| 65 | return S_OK; |
| 66 | } |
| 67 | long WINAPI |
| 68 | libAVFilter_SetSyncSource(libAVFilter *this, IReferenceClock *clock) |
| 69 | { |
| 70 | dshowdebug("libAVFilter_SetSyncSource(%p)\n", this); |
| 71 | |
| 72 | if (this->clock != clock) { |
| 73 | if (this->clock) |
| 74 | IReferenceClock_Release(this->clock); |
| 75 | this->clock = clock; |
| 76 | if (clock) |
| 77 | IReferenceClock_AddRef(clock); |
| 78 | } |
| 79 | |
| 80 | return S_OK; |
| 81 | } |
| 82 | long WINAPI |
| 83 | libAVFilter_GetSyncSource(libAVFilter *this, IReferenceClock **clock) |
| 84 | { |
| 85 | dshowdebug("libAVFilter_GetSyncSource(%p)\n", this); |
| 86 | |
| 87 | if (!clock) |
| 88 | return E_POINTER; |
| 89 | if (this->clock) |
| 90 | IReferenceClock_AddRef(this->clock); |
| 91 | *clock = this->clock; |
| 92 | |
| 93 | return S_OK; |
| 94 | } |
| 95 | long WINAPI |
| 96 | libAVFilter_EnumPins(libAVFilter *this, IEnumPins **enumpin) |
| 97 | { |
| 98 | libAVEnumPins *new; |
| 99 | dshowdebug("libAVFilter_EnumPins(%p)\n", this); |
| 100 | |
| 101 | if (!enumpin) |
| 102 | return E_POINTER; |
| 103 | new = libAVEnumPins_Create(this->pin, this); |
| 104 | if (!new) |
| 105 | return E_OUTOFMEMORY; |
| 106 | |
| 107 | *enumpin = (IEnumPins *) new; |
| 108 | return S_OK; |
| 109 | } |
| 110 | long WINAPI |
| 111 | libAVFilter_FindPin(libAVFilter *this, const wchar_t *id, IPin **pin) |
| 112 | { |
| 113 | libAVPin *found = NULL; |
| 114 | dshowdebug("libAVFilter_FindPin(%p)\n", this); |
| 115 | |
| 116 | if (!id || !pin) |
| 117 | return E_POINTER; |
| 118 | if (!wcscmp(id, L"In")) { |
| 119 | found = this->pin; |
| 120 | libAVPin_AddRef(found); |
| 121 | } |
| 122 | *pin = (IPin *) found; |
| 123 | if (!found) |
| 124 | return VFW_E_NOT_FOUND; |
| 125 | |
| 126 | return S_OK; |
| 127 | } |
| 128 | long WINAPI |
| 129 | libAVFilter_QueryFilterInfo(libAVFilter *this, FILTER_INFO *info) |
| 130 | { |
| 131 | dshowdebug("libAVFilter_QueryFilterInfo(%p)\n", this); |
| 132 | |
| 133 | if (!info) |
| 134 | return E_POINTER; |
| 135 | if (this->info.pGraph) |
| 136 | IFilterGraph_AddRef(this->info.pGraph); |
| 137 | *info = this->info; |
| 138 | |
| 139 | return S_OK; |
| 140 | } |
| 141 | long WINAPI |
| 142 | libAVFilter_JoinFilterGraph(libAVFilter *this, IFilterGraph *graph, |
| 143 | const wchar_t *name) |
| 144 | { |
| 145 | dshowdebug("libAVFilter_JoinFilterGraph(%p)\n", this); |
| 146 | |
| 147 | this->info.pGraph = graph; |
| 148 | if (name) |
| 149 | wcscpy(this->info.achName, name); |
| 150 | |
| 151 | return S_OK; |
| 152 | } |
| 153 | long WINAPI |
| 154 | libAVFilter_QueryVendorInfo(libAVFilter *this, wchar_t **info) |
| 155 | { |
| 156 | dshowdebug("libAVFilter_QueryVendorInfo(%p)\n", this); |
| 157 | |
| 158 | if (!info) |
| 159 | return E_POINTER; |
| 160 | *info = wcsdup(L"libAV"); |
| 161 | |
| 162 | return S_OK; |
| 163 | } |
| 164 | |
| 165 | static int |
| 166 | libAVFilter_Setup(libAVFilter *this, void *priv_data, void *callback, |
| 167 | enum dshowDeviceType type) |
| 168 | { |
| 169 | IBaseFilterVtbl *vtbl = this->vtbl; |
| 170 | SETVTBL(vtbl, libAVFilter, QueryInterface); |
| 171 | SETVTBL(vtbl, libAVFilter, AddRef); |
| 172 | SETVTBL(vtbl, libAVFilter, Release); |
| 173 | SETVTBL(vtbl, libAVFilter, GetClassID); |
| 174 | SETVTBL(vtbl, libAVFilter, Stop); |
| 175 | SETVTBL(vtbl, libAVFilter, Pause); |
| 176 | SETVTBL(vtbl, libAVFilter, Run); |
| 177 | SETVTBL(vtbl, libAVFilter, GetState); |
| 178 | SETVTBL(vtbl, libAVFilter, SetSyncSource); |
| 179 | SETVTBL(vtbl, libAVFilter, GetSyncSource); |
| 180 | SETVTBL(vtbl, libAVFilter, EnumPins); |
| 181 | SETVTBL(vtbl, libAVFilter, FindPin); |
| 182 | SETVTBL(vtbl, libAVFilter, QueryFilterInfo); |
| 183 | SETVTBL(vtbl, libAVFilter, JoinFilterGraph); |
| 184 | SETVTBL(vtbl, libAVFilter, QueryVendorInfo); |
| 185 | |
| 186 | this->pin = libAVPin_Create(this); |
| 187 | |
| 188 | this->priv_data = priv_data; |
| 189 | this->callback = callback; |
| 190 | this->type = type; |
| 191 | |
| 192 | return 1; |
| 193 | } |
| 194 | static int |
| 195 | libAVFilter_Cleanup(libAVFilter *this) |
| 196 | { |
| 197 | libAVPin_Release(this->pin); |
| 198 | return 1; |
| 199 | } |
| 200 | DECLARE_CREATE(libAVFilter, libAVFilter_Setup(this, priv_data, callback, type), |
| 201 | void *priv_data, void *callback, enum dshowDeviceType type) |
| 202 | DECLARE_DESTROY(libAVFilter, libAVFilter_Cleanup) |