| 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 | #include <stddef.h> |
| 25 | #define imemoffset offsetof(libAVPin, imemvtbl) |
| 26 | |
| 27 | DECLARE_QUERYINTERFACE(libAVPin, |
| 28 | { {&IID_IUnknown,0}, {&IID_IPin,0}, {&IID_IMemInputPin,imemoffset} }) |
| 29 | DECLARE_ADDREF(libAVPin) |
| 30 | DECLARE_RELEASE(libAVPin) |
| 31 | |
| 32 | long WINAPI |
| 33 | libAVPin_Connect(libAVPin *this, IPin *pin, const AM_MEDIA_TYPE *type) |
| 34 | { |
| 35 | dshowdebug("libAVPin_Connect(%p, %p, %p)\n", this, pin, type); |
| 36 | /* Input pins receive connections. */ |
| 37 | return S_FALSE; |
| 38 | } |
| 39 | long WINAPI |
| 40 | libAVPin_ReceiveConnection(libAVPin *this, IPin *pin, |
| 41 | const AM_MEDIA_TYPE *type) |
| 42 | { |
| 43 | enum dshowDeviceType devtype = this->filter->type; |
| 44 | dshowdebug("libAVPin_ReceiveConnection(%p)\n", this); |
| 45 | |
| 46 | if (!pin) |
| 47 | return E_POINTER; |
| 48 | if (this->connectedto) |
| 49 | return VFW_E_ALREADY_CONNECTED; |
| 50 | |
| 51 | ff_print_AM_MEDIA_TYPE(type); |
| 52 | if (devtype == VideoDevice) { |
| 53 | if (!IsEqualGUID(&type->majortype, &MEDIATYPE_Video)) |
| 54 | return VFW_E_TYPE_NOT_ACCEPTED; |
| 55 | } else { |
| 56 | if (!IsEqualGUID(&type->majortype, &MEDIATYPE_Audio)) |
| 57 | return VFW_E_TYPE_NOT_ACCEPTED; |
| 58 | } |
| 59 | |
| 60 | IPin_AddRef(pin); |
| 61 | this->connectedto = pin; |
| 62 | |
| 63 | ff_copy_dshow_media_type(&this->type, type); |
| 64 | |
| 65 | return S_OK; |
| 66 | } |
| 67 | long WINAPI |
| 68 | libAVPin_Disconnect(libAVPin *this) |
| 69 | { |
| 70 | dshowdebug("libAVPin_Disconnect(%p)\n", this); |
| 71 | |
| 72 | if (this->filter->state != State_Stopped) |
| 73 | return VFW_E_NOT_STOPPED; |
| 74 | if (!this->connectedto) |
| 75 | return S_FALSE; |
| 76 | IPin_Release(this->connectedto); |
| 77 | this->connectedto = NULL; |
| 78 | |
| 79 | return S_OK; |
| 80 | } |
| 81 | long WINAPI |
| 82 | libAVPin_ConnectedTo(libAVPin *this, IPin **pin) |
| 83 | { |
| 84 | dshowdebug("libAVPin_ConnectedTo(%p)\n", this); |
| 85 | |
| 86 | if (!pin) |
| 87 | return E_POINTER; |
| 88 | if (!this->connectedto) |
| 89 | return VFW_E_NOT_CONNECTED; |
| 90 | IPin_AddRef(this->connectedto); |
| 91 | *pin = this->connectedto; |
| 92 | |
| 93 | return S_OK; |
| 94 | } |
| 95 | long WINAPI |
| 96 | libAVPin_ConnectionMediaType(libAVPin *this, AM_MEDIA_TYPE *type) |
| 97 | { |
| 98 | dshowdebug("libAVPin_ConnectionMediaType(%p)\n", this); |
| 99 | |
| 100 | if (!type) |
| 101 | return E_POINTER; |
| 102 | if (!this->connectedto) |
| 103 | return VFW_E_NOT_CONNECTED; |
| 104 | |
| 105 | return ff_copy_dshow_media_type(type, &this->type); |
| 106 | } |
| 107 | long WINAPI |
| 108 | libAVPin_QueryPinInfo(libAVPin *this, PIN_INFO *info) |
| 109 | { |
| 110 | dshowdebug("libAVPin_QueryPinInfo(%p)\n", this); |
| 111 | |
| 112 | if (!info) |
| 113 | return E_POINTER; |
| 114 | |
| 115 | if (this->filter) |
| 116 | libAVFilter_AddRef(this->filter); |
| 117 | |
| 118 | info->pFilter = (IBaseFilter *) this->filter; |
| 119 | info->dir = PINDIR_INPUT; |
| 120 | wcscpy(info->achName, L"Capture"); |
| 121 | |
| 122 | return S_OK; |
| 123 | } |
| 124 | long WINAPI |
| 125 | libAVPin_QueryDirection(libAVPin *this, PIN_DIRECTION *dir) |
| 126 | { |
| 127 | dshowdebug("libAVPin_QueryDirection(%p)\n", this); |
| 128 | if (!dir) |
| 129 | return E_POINTER; |
| 130 | *dir = PINDIR_INPUT; |
| 131 | return S_OK; |
| 132 | } |
| 133 | long WINAPI |
| 134 | libAVPin_QueryId(libAVPin *this, wchar_t **id) |
| 135 | { |
| 136 | dshowdebug("libAVPin_QueryId(%p)\n", this); |
| 137 | |
| 138 | if (!id) |
| 139 | return E_POINTER; |
| 140 | |
| 141 | *id = wcsdup(L"libAV Pin"); |
| 142 | |
| 143 | return S_OK; |
| 144 | } |
| 145 | long WINAPI |
| 146 | libAVPin_QueryAccept(libAVPin *this, const AM_MEDIA_TYPE *type) |
| 147 | { |
| 148 | dshowdebug("libAVPin_QueryAccept(%p)\n", this); |
| 149 | return S_FALSE; |
| 150 | } |
| 151 | long WINAPI |
| 152 | libAVPin_EnumMediaTypes(libAVPin *this, IEnumMediaTypes **enumtypes) |
| 153 | { |
| 154 | const AM_MEDIA_TYPE *type = NULL; |
| 155 | libAVEnumMediaTypes *new; |
| 156 | dshowdebug("libAVPin_EnumMediaTypes(%p)\n", this); |
| 157 | |
| 158 | if (!enumtypes) |
| 159 | return E_POINTER; |
| 160 | new = libAVEnumMediaTypes_Create(type); |
| 161 | if (!new) |
| 162 | return E_OUTOFMEMORY; |
| 163 | |
| 164 | *enumtypes = (IEnumMediaTypes *) new; |
| 165 | return S_OK; |
| 166 | } |
| 167 | long WINAPI |
| 168 | libAVPin_QueryInternalConnections(libAVPin *this, IPin **pin, |
| 169 | unsigned long *npin) |
| 170 | { |
| 171 | dshowdebug("libAVPin_QueryInternalConnections(%p)\n", this); |
| 172 | return E_NOTIMPL; |
| 173 | } |
| 174 | long WINAPI |
| 175 | libAVPin_EndOfStream(libAVPin *this) |
| 176 | { |
| 177 | dshowdebug("libAVPin_EndOfStream(%p)\n", this); |
| 178 | /* I don't care. */ |
| 179 | return S_OK; |
| 180 | } |
| 181 | long WINAPI |
| 182 | libAVPin_BeginFlush(libAVPin *this) |
| 183 | { |
| 184 | dshowdebug("libAVPin_BeginFlush(%p)\n", this); |
| 185 | /* I don't care. */ |
| 186 | return S_OK; |
| 187 | } |
| 188 | long WINAPI |
| 189 | libAVPin_EndFlush(libAVPin *this) |
| 190 | { |
| 191 | dshowdebug("libAVPin_EndFlush(%p)\n", this); |
| 192 | /* I don't care. */ |
| 193 | return S_OK; |
| 194 | } |
| 195 | long WINAPI |
| 196 | libAVPin_NewSegment(libAVPin *this, REFERENCE_TIME start, REFERENCE_TIME stop, |
| 197 | double rate) |
| 198 | { |
| 199 | dshowdebug("libAVPin_NewSegment(%p)\n", this); |
| 200 | /* I don't care. */ |
| 201 | return S_OK; |
| 202 | } |
| 203 | |
| 204 | static int |
| 205 | libAVPin_Setup(libAVPin *this, libAVFilter *filter) |
| 206 | { |
| 207 | IPinVtbl *vtbl = this->vtbl; |
| 208 | IMemInputPinVtbl *imemvtbl; |
| 209 | |
| 210 | if (!filter) |
| 211 | return 0; |
| 212 | |
| 213 | imemvtbl = av_malloc(sizeof(IMemInputPinVtbl)); |
| 214 | if (!imemvtbl) |
| 215 | return 0; |
| 216 | |
| 217 | SETVTBL(imemvtbl, libAVMemInputPin, QueryInterface); |
| 218 | SETVTBL(imemvtbl, libAVMemInputPin, AddRef); |
| 219 | SETVTBL(imemvtbl, libAVMemInputPin, Release); |
| 220 | SETVTBL(imemvtbl, libAVMemInputPin, GetAllocator); |
| 221 | SETVTBL(imemvtbl, libAVMemInputPin, NotifyAllocator); |
| 222 | SETVTBL(imemvtbl, libAVMemInputPin, GetAllocatorRequirements); |
| 223 | SETVTBL(imemvtbl, libAVMemInputPin, Receive); |
| 224 | SETVTBL(imemvtbl, libAVMemInputPin, ReceiveMultiple); |
| 225 | SETVTBL(imemvtbl, libAVMemInputPin, ReceiveCanBlock); |
| 226 | |
| 227 | this->imemvtbl = imemvtbl; |
| 228 | |
| 229 | SETVTBL(vtbl, libAVPin, QueryInterface); |
| 230 | SETVTBL(vtbl, libAVPin, AddRef); |
| 231 | SETVTBL(vtbl, libAVPin, Release); |
| 232 | SETVTBL(vtbl, libAVPin, Connect); |
| 233 | SETVTBL(vtbl, libAVPin, ReceiveConnection); |
| 234 | SETVTBL(vtbl, libAVPin, Disconnect); |
| 235 | SETVTBL(vtbl, libAVPin, ConnectedTo); |
| 236 | SETVTBL(vtbl, libAVPin, ConnectionMediaType); |
| 237 | SETVTBL(vtbl, libAVPin, QueryPinInfo); |
| 238 | SETVTBL(vtbl, libAVPin, QueryDirection); |
| 239 | SETVTBL(vtbl, libAVPin, QueryId); |
| 240 | SETVTBL(vtbl, libAVPin, QueryAccept); |
| 241 | SETVTBL(vtbl, libAVPin, EnumMediaTypes); |
| 242 | SETVTBL(vtbl, libAVPin, QueryInternalConnections); |
| 243 | SETVTBL(vtbl, libAVPin, EndOfStream); |
| 244 | SETVTBL(vtbl, libAVPin, BeginFlush); |
| 245 | SETVTBL(vtbl, libAVPin, EndFlush); |
| 246 | SETVTBL(vtbl, libAVPin, NewSegment); |
| 247 | |
| 248 | this->filter = filter; |
| 249 | |
| 250 | return 1; |
| 251 | } |
| 252 | DECLARE_CREATE(libAVPin, libAVPin_Setup(this, filter), libAVFilter *filter) |
| 253 | DECLARE_DESTROY(libAVPin, nothing) |
| 254 | |
| 255 | /***************************************************************************** |
| 256 | * libAVMemInputPin |
| 257 | ****************************************************************************/ |
| 258 | long WINAPI |
| 259 | libAVMemInputPin_QueryInterface(libAVMemInputPin *this, const GUID *riid, |
| 260 | void **ppvObject) |
| 261 | { |
| 262 | libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset); |
| 263 | dshowdebug("libAVMemInputPin_QueryInterface(%p)\n", this); |
| 264 | return libAVPin_QueryInterface(pin, riid, ppvObject); |
| 265 | } |
| 266 | unsigned long WINAPI |
| 267 | libAVMemInputPin_AddRef(libAVMemInputPin *this) |
| 268 | { |
| 269 | libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset); |
| 270 | dshowdebug("libAVMemInputPin_AddRef(%p)\n", this); |
| 271 | return libAVPin_AddRef(pin); |
| 272 | } |
| 273 | unsigned long WINAPI |
| 274 | libAVMemInputPin_Release(libAVMemInputPin *this) |
| 275 | { |
| 276 | libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset); |
| 277 | dshowdebug("libAVMemInputPin_Release(%p)\n", this); |
| 278 | return libAVPin_Release(pin); |
| 279 | } |
| 280 | long WINAPI |
| 281 | libAVMemInputPin_GetAllocator(libAVMemInputPin *this, IMemAllocator **alloc) |
| 282 | { |
| 283 | dshowdebug("libAVMemInputPin_GetAllocator(%p)\n", this); |
| 284 | return VFW_E_NO_ALLOCATOR; |
| 285 | } |
| 286 | long WINAPI |
| 287 | libAVMemInputPin_NotifyAllocator(libAVMemInputPin *this, IMemAllocator *alloc, |
| 288 | BOOL rdwr) |
| 289 | { |
| 290 | dshowdebug("libAVMemInputPin_NotifyAllocator(%p)\n", this); |
| 291 | return S_OK; |
| 292 | } |
| 293 | long WINAPI |
| 294 | libAVMemInputPin_GetAllocatorRequirements(libAVMemInputPin *this, |
| 295 | ALLOCATOR_PROPERTIES *props) |
| 296 | { |
| 297 | dshowdebug("libAVMemInputPin_GetAllocatorRequirements(%p)\n", this); |
| 298 | return E_NOTIMPL; |
| 299 | } |
| 300 | long WINAPI |
| 301 | libAVMemInputPin_Receive(libAVMemInputPin *this, IMediaSample *sample) |
| 302 | { |
| 303 | libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset); |
| 304 | enum dshowDeviceType devtype = pin->filter->type; |
| 305 | void *priv_data; |
| 306 | uint8_t *buf; |
| 307 | int buf_size; |
| 308 | int index; |
| 309 | int64_t curtime; |
| 310 | |
| 311 | dshowdebug("libAVMemInputPin_Receive(%p)\n", this); |
| 312 | |
| 313 | if (!sample) |
| 314 | return E_POINTER; |
| 315 | |
| 316 | if (devtype == VideoDevice) { |
| 317 | /* PTS from video devices is unreliable. */ |
| 318 | IReferenceClock *clock = pin->filter->clock; |
| 319 | IReferenceClock_GetTime(clock, &curtime); |
| 320 | } else { |
| 321 | int64_t dummy; |
| 322 | IMediaSample_GetTime(sample, &curtime, &dummy); |
| 323 | curtime += pin->filter->start_time; |
| 324 | } |
| 325 | |
| 326 | buf_size = IMediaSample_GetActualDataLength(sample); |
| 327 | IMediaSample_GetPointer(sample, &buf); |
| 328 | priv_data = pin->filter->priv_data; |
| 329 | index = pin->filter->stream_index; |
| 330 | |
| 331 | pin->filter->callback(priv_data, index, buf, buf_size, curtime, devtype); |
| 332 | |
| 333 | return S_OK; |
| 334 | } |
| 335 | long WINAPI |
| 336 | libAVMemInputPin_ReceiveMultiple(libAVMemInputPin *this, |
| 337 | IMediaSample **samples, long n, long *nproc) |
| 338 | { |
| 339 | int i; |
| 340 | dshowdebug("libAVMemInputPin_ReceiveMultiple(%p)\n", this); |
| 341 | |
| 342 | for (i = 0; i < n; i++) |
| 343 | libAVMemInputPin_Receive(this, samples[i]); |
| 344 | |
| 345 | *nproc = n; |
| 346 | return S_OK; |
| 347 | } |
| 348 | long WINAPI |
| 349 | libAVMemInputPin_ReceiveCanBlock(libAVMemInputPin *this) |
| 350 | { |
| 351 | dshowdebug("libAVMemInputPin_ReceiveCanBlock(%p)\n", this); |
| 352 | /* I swear I will not block. */ |
| 353 | return S_FALSE; |
| 354 | } |
| 355 | |
| 356 | void |
| 357 | libAVMemInputPin_Destroy(libAVMemInputPin *this) |
| 358 | { |
| 359 | libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset); |
| 360 | dshowdebug("libAVMemInputPin_Destroy(%p)\n", this); |
| 361 | libAVPin_Destroy(pin); |
| 362 | } |