Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
| 19 | #include <pjmedia-videodev/videodev_imp.h> |
| 20 | #include <pj/assert.h> |
| 21 | #include <pj/log.h> |
| 22 | #include <pj/os.h> |
| 23 | #include <pj/unicode.h> |
| 24 | |
| 25 | |
| 26 | #if defined(PJMEDIA_VIDEO_DEV_HAS_DSHOW) && PJMEDIA_VIDEO_DEV_HAS_DSHOW != 0 |
| 27 | |
| 28 | |
| 29 | #ifdef _MSC_VER |
| 30 | # pragma warning(push, 3) |
| 31 | #endif |
| 32 | |
| 33 | #include <windows.h> |
| 34 | #define COBJMACROS |
| 35 | #include <DShow.h> |
| 36 | #include <wmsdkidl.h> |
| 37 | |
| 38 | #ifdef _MSC_VER |
| 39 | # pragma warning(pop) |
| 40 | #endif |
| 41 | |
| 42 | #pragma comment(lib, "Strmiids.lib") |
| 43 | #pragma comment(lib, "Rpcrt4.lib") |
| 44 | #pragma comment(lib, "Quartz.lib") |
| 45 | |
| 46 | #define THIS_FILE "dshow_dev.c" |
| 47 | #define DEFAULT_CLOCK_RATE 90000 |
| 48 | #define DEFAULT_WIDTH 640 |
| 49 | #define DEFAULT_HEIGHT 480 |
| 50 | #define DEFAULT_FPS 25 |
| 51 | |
| 52 | /* Temporarily disable DirectShow renderer (VMR) */ |
| 53 | #define HAS_VMR 0 |
| 54 | |
| 55 | typedef void (*input_callback)(void *user_data, IMediaSample *pMediaSample); |
| 56 | typedef struct NullRenderer NullRenderer; |
| 57 | IBaseFilter* NullRenderer_Create(input_callback input_cb, |
| 58 | void *user_data); |
| 59 | typedef struct SourceFilter SourceFilter; |
| 60 | IBaseFilter* SourceFilter_Create(SourceFilter **pSrc); |
| 61 | HRESULT SourceFilter_Deliver(SourceFilter *src, void *buf, long size); |
| 62 | void SourceFilter_SetMediaType(SourceFilter *src, AM_MEDIA_TYPE *pmt); |
| 63 | |
| 64 | typedef struct dshow_fmt_info |
| 65 | { |
| 66 | pjmedia_format_id pjmedia_format; |
| 67 | const GUID *dshow_format; |
| 68 | pj_bool_t enabled; |
| 69 | } dshow_fmt_info; |
| 70 | |
| 71 | static dshow_fmt_info dshow_fmts[] = |
| 72 | { |
| 73 | {PJMEDIA_FORMAT_YUY2, &MEDIASUBTYPE_YUY2, PJ_FALSE} , |
| 74 | {PJMEDIA_FORMAT_RGB24, &MEDIASUBTYPE_RGB24, PJ_FALSE} , |
| 75 | {PJMEDIA_FORMAT_RGB32, &MEDIASUBTYPE_RGB32, PJ_FALSE} , |
| 76 | {PJMEDIA_FORMAT_IYUV, &MEDIASUBTYPE_IYUV, PJ_FALSE} , |
| 77 | {PJMEDIA_FORMAT_I420, &WMMEDIASUBTYPE_I420, PJ_FALSE} |
| 78 | }; |
| 79 | |
| 80 | /* dshow_ device info */ |
| 81 | struct dshow_dev_info |
| 82 | { |
| 83 | pjmedia_vid_dev_info info; |
| 84 | unsigned dev_id; |
| 85 | WCHAR display_name[192]; |
| 86 | }; |
| 87 | |
| 88 | /* dshow_ factory */ |
| 89 | struct dshow_factory |
| 90 | { |
| 91 | pjmedia_vid_dev_factory base; |
| 92 | pj_pool_t *pool; |
| 93 | pj_pool_t *dev_pool; |
| 94 | pj_pool_factory *pf; |
| 95 | |
| 96 | unsigned dev_count; |
| 97 | struct dshow_dev_info *dev_info; |
| 98 | }; |
| 99 | |
| 100 | /* Video stream. */ |
| 101 | struct dshow_stream |
| 102 | { |
| 103 | pjmedia_vid_dev_stream base; /**< Base stream */ |
| 104 | pjmedia_vid_dev_param param; /**< Settings */ |
| 105 | pj_pool_t *pool; /**< Memory pool. */ |
| 106 | |
| 107 | pjmedia_vid_dev_cb vid_cb; /**< Stream callback. */ |
| 108 | void *user_data; /**< Application data. */ |
| 109 | |
| 110 | pj_bool_t quit_flag; |
| 111 | pj_bool_t rend_thread_exited; |
| 112 | pj_bool_t cap_thread_exited; |
| 113 | pj_bool_t cap_thread_initialized; |
| 114 | pj_thread_desc cap_thread_desc; |
| 115 | pj_thread_t *cap_thread; |
| 116 | void *frm_buf; |
| 117 | unsigned frm_buf_size; |
| 118 | |
| 119 | struct dshow_graph |
| 120 | { |
| 121 | IFilterGraph *filter_graph; |
| 122 | IMediaFilter *media_filter; |
| 123 | SourceFilter *csource_filter; |
| 124 | IBaseFilter *source_filter; |
| 125 | IBaseFilter *rend_filter; |
| 126 | AM_MEDIA_TYPE *mediatype; |
| 127 | } dgraph; |
| 128 | |
| 129 | pj_timestamp cap_ts; |
| 130 | unsigned cap_ts_inc; |
| 131 | }; |
| 132 | |
| 133 | |
| 134 | /* Prototypes */ |
| 135 | static pj_status_t dshow_factory_init(pjmedia_vid_dev_factory *f); |
| 136 | static pj_status_t dshow_factory_destroy(pjmedia_vid_dev_factory *f); |
| 137 | static pj_status_t dshow_factory_refresh(pjmedia_vid_dev_factory *f); |
| 138 | static unsigned dshow_factory_get_dev_count(pjmedia_vid_dev_factory *f); |
| 139 | static pj_status_t dshow_factory_get_dev_info(pjmedia_vid_dev_factory *f, |
| 140 | unsigned index, |
| 141 | pjmedia_vid_dev_info *info); |
| 142 | static pj_status_t dshow_factory_default_param(pj_pool_t *pool, |
| 143 | pjmedia_vid_dev_factory *f, |
| 144 | unsigned index, |
| 145 | pjmedia_vid_dev_param *param); |
| 146 | static pj_status_t dshow_factory_create_stream( |
| 147 | pjmedia_vid_dev_factory *f, |
| 148 | pjmedia_vid_dev_param *param, |
| 149 | const pjmedia_vid_dev_cb *cb, |
| 150 | void *user_data, |
| 151 | pjmedia_vid_dev_stream **p_vid_strm); |
| 152 | |
| 153 | static pj_status_t dshow_stream_get_param(pjmedia_vid_dev_stream *strm, |
| 154 | pjmedia_vid_dev_param *param); |
| 155 | static pj_status_t dshow_stream_get_cap(pjmedia_vid_dev_stream *strm, |
| 156 | pjmedia_vid_dev_cap cap, |
| 157 | void *value); |
| 158 | static pj_status_t dshow_stream_set_cap(pjmedia_vid_dev_stream *strm, |
| 159 | pjmedia_vid_dev_cap cap, |
| 160 | const void *value); |
| 161 | static pj_status_t dshow_stream_start(pjmedia_vid_dev_stream *strm); |
| 162 | static pj_status_t dshow_stream_put_frame(pjmedia_vid_dev_stream *strm, |
| 163 | const pjmedia_frame *frame); |
| 164 | static pj_status_t dshow_stream_stop(pjmedia_vid_dev_stream *strm); |
| 165 | static pj_status_t dshow_stream_destroy(pjmedia_vid_dev_stream *strm); |
| 166 | |
| 167 | /* Operations */ |
| 168 | static pjmedia_vid_dev_factory_op factory_op = |
| 169 | { |
| 170 | &dshow_factory_init, |
| 171 | &dshow_factory_destroy, |
| 172 | &dshow_factory_get_dev_count, |
| 173 | &dshow_factory_get_dev_info, |
| 174 | &dshow_factory_default_param, |
| 175 | &dshow_factory_create_stream, |
| 176 | &dshow_factory_refresh |
| 177 | }; |
| 178 | |
| 179 | static pjmedia_vid_dev_stream_op stream_op = |
| 180 | { |
| 181 | &dshow_stream_get_param, |
| 182 | &dshow_stream_get_cap, |
| 183 | &dshow_stream_set_cap, |
| 184 | &dshow_stream_start, |
| 185 | NULL, |
| 186 | &dshow_stream_put_frame, |
| 187 | &dshow_stream_stop, |
| 188 | &dshow_stream_destroy |
| 189 | }; |
| 190 | |
| 191 | |
| 192 | /**************************************************************************** |
| 193 | * Factory operations |
| 194 | */ |
| 195 | /* |
| 196 | * Init dshow_ video driver. |
| 197 | */ |
| 198 | pjmedia_vid_dev_factory* pjmedia_dshow_factory(pj_pool_factory *pf) |
| 199 | { |
| 200 | struct dshow_factory *f; |
| 201 | pj_pool_t *pool; |
| 202 | |
| 203 | pool = pj_pool_create(pf, "dshow video", 1000, 1000, NULL); |
| 204 | f = PJ_POOL_ZALLOC_T(pool, struct dshow_factory); |
| 205 | f->pf = pf; |
| 206 | f->pool = pool; |
| 207 | f->base.op = &factory_op; |
| 208 | |
| 209 | return &f->base; |
| 210 | } |
| 211 | |
| 212 | /* API: init factory */ |
| 213 | static pj_status_t dshow_factory_init(pjmedia_vid_dev_factory *f) |
| 214 | { |
| 215 | HRESULT hr = CoInitializeEx(NULL, COINIT_MULTITHREADED); |
| 216 | if (hr == RPC_E_CHANGED_MODE) { |
| 217 | PJ_LOG(4,(THIS_FILE, "Failed initializing DShow: " |
| 218 | "COM library already initialized with " |
| 219 | "incompatible concurrency model")); |
| 220 | return PJMEDIA_EVID_INIT; |
| 221 | } |
| 222 | |
| 223 | return dshow_factory_refresh(f); |
| 224 | } |
| 225 | |
| 226 | /* API: destroy factory */ |
| 227 | static pj_status_t dshow_factory_destroy(pjmedia_vid_dev_factory *f) |
| 228 | { |
| 229 | struct dshow_factory *df = (struct dshow_factory*)f; |
| 230 | pj_pool_t *pool = df->pool; |
| 231 | |
| 232 | df->pool = NULL; |
| 233 | if (df->dev_pool) |
| 234 | pj_pool_release(df->dev_pool); |
| 235 | if (pool) |
| 236 | pj_pool_release(pool); |
| 237 | |
| 238 | CoUninitialize(); |
| 239 | |
| 240 | return PJ_SUCCESS; |
| 241 | } |
| 242 | |
| 243 | static HRESULT get_cap_device(struct dshow_factory *df, |
| 244 | unsigned id, |
| 245 | IBaseFilter **filter) |
| 246 | { |
| 247 | IBindCtx *pbc; |
| 248 | HRESULT hr; |
| 249 | |
| 250 | hr = CreateBindCtx(0, &pbc); |
| 251 | if (SUCCEEDED (hr)) { |
| 252 | IMoniker *moniker; |
| 253 | DWORD pchEaten; |
| 254 | |
| 255 | hr = MkParseDisplayName(pbc, df->dev_info[id].display_name, |
| 256 | &pchEaten, &moniker); |
| 257 | if (SUCCEEDED(hr)) { |
| 258 | hr = IMoniker_BindToObject(moniker, pbc, NULL, |
| 259 | &IID_IBaseFilter, |
| 260 | (LPVOID *)filter); |
| 261 | IMoniker_Release(moniker); |
| 262 | } |
| 263 | IBindCtx_Release(pbc); |
| 264 | } |
| 265 | |
| 266 | return hr; |
| 267 | } |
| 268 | |
| 269 | static void enum_dev_cap(IBaseFilter *filter, |
| 270 | pjmedia_dir dir, |
| 271 | const GUID *dshow_fmt, |
| 272 | AM_MEDIA_TYPE **pMediatype, |
| 273 | IPin **pSrcpin, |
| 274 | pj_bool_t *sup_fmt) |
| 275 | { |
| 276 | IEnumPins *pEnum; |
| 277 | AM_MEDIA_TYPE *mediatype = NULL; |
| 278 | HRESULT hr; |
| 279 | |
| 280 | if (pSrcpin) |
| 281 | *pSrcpin = NULL; |
| 282 | hr = IBaseFilter_EnumPins(filter, &pEnum); |
| 283 | if (SUCCEEDED(hr)) { |
| 284 | /* Loop through all the pins. */ |
| 285 | IPin *pPin = NULL; |
| 286 | |
| 287 | while (IEnumPins_Next(pEnum, 1, &pPin, NULL) == S_OK) { |
| 288 | PIN_DIRECTION pindirtmp; |
| 289 | |
| 290 | hr = IPin_QueryDirection(pPin, &pindirtmp); |
| 291 | if (hr != S_OK || pindirtmp != PINDIR_OUTPUT) { |
| 292 | if (SUCCEEDED(hr)) |
| 293 | IPin_Release(pPin); |
| 294 | continue; |
| 295 | } |
| 296 | |
| 297 | if (dir == PJMEDIA_DIR_CAPTURE) { |
| 298 | IAMStreamConfig *streamcaps; |
| 299 | |
| 300 | hr = IPin_QueryInterface(pPin, &IID_IAMStreamConfig, |
| 301 | (LPVOID *)&streamcaps); |
| 302 | if (SUCCEEDED(hr)) { |
| 303 | VIDEO_STREAM_CONFIG_CAPS vscc; |
| 304 | int i, isize, icount; |
| 305 | |
| 306 | IAMStreamConfig_GetNumberOfCapabilities(streamcaps, |
| 307 | &icount, &isize); |
| 308 | |
| 309 | for (i = 0; i < icount; i++) { |
| 310 | unsigned j, nformat; |
| 311 | RPC_STATUS rpcstatus, rpcstatus2; |
| 312 | |
| 313 | hr = IAMStreamConfig_GetStreamCaps(streamcaps, i, |
| 314 | &mediatype, |
| 315 | (BYTE *)&vscc); |
| 316 | if (FAILED (hr)) |
| 317 | continue; |
| 318 | |
| 319 | nformat = (dshow_fmt? 1: |
| 320 | sizeof(dshow_fmts)/sizeof(dshow_fmts[0])); |
| 321 | for (j = 0; j < nformat; j++) { |
| 322 | const GUID *dshow_format = dshow_fmt; |
| 323 | |
| 324 | if (!dshow_format) |
| 325 | dshow_format = dshow_fmts[j].dshow_format; |
| 326 | if (UuidCompare(&mediatype->subtype, |
| 327 | (UUID*)dshow_format, |
| 328 | &rpcstatus) == 0 && |
| 329 | rpcstatus == RPC_S_OK && |
| 330 | UuidCompare(&mediatype->formattype, |
| 331 | (UUID*)&FORMAT_VideoInfo, |
| 332 | &rpcstatus2) == 0 && |
| 333 | rpcstatus2 == RPC_S_OK) |
| 334 | { |
| 335 | if (!dshow_fmt) |
| 336 | dshow_fmts[j].enabled = PJ_TRUE; |
| 337 | if (sup_fmt) |
| 338 | sup_fmt[j] = PJ_TRUE; |
| 339 | if (pSrcpin) { |
| 340 | *pSrcpin = pPin; |
| 341 | *pMediatype = mediatype; |
| 342 | } |
| 343 | } |
| 344 | } |
| 345 | if (pSrcpin && *pSrcpin) |
| 346 | break; |
| 347 | } |
| 348 | IAMStreamConfig_Release(streamcaps); |
| 349 | } |
| 350 | } else { |
| 351 | *pSrcpin = pPin; |
| 352 | } |
| 353 | if (pSrcpin && *pSrcpin) |
| 354 | break; |
| 355 | IPin_Release(pPin); |
| 356 | } |
| 357 | IEnumPins_Release(pEnum); |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | /* API: refresh the list of devices */ |
| 362 | static pj_status_t dshow_factory_refresh(pjmedia_vid_dev_factory *f) |
| 363 | { |
| 364 | struct dshow_factory *df = (struct dshow_factory*)f; |
| 365 | struct dshow_dev_info *ddi; |
| 366 | int dev_count = 0; |
| 367 | unsigned c; |
| 368 | ICreateDevEnum *dev_enum = NULL; |
| 369 | IEnumMoniker *enum_cat = NULL; |
| 370 | IMoniker *moniker = NULL; |
| 371 | HRESULT hr; |
| 372 | ULONG fetched; |
| 373 | |
| 374 | if (df->dev_pool) { |
| 375 | pj_pool_release(df->dev_pool); |
| 376 | df->dev_pool = NULL; |
| 377 | } |
| 378 | |
| 379 | df->dev_count = 0; |
| 380 | df->dev_pool = pj_pool_create(df->pf, "dshow video", 500, 500, NULL); |
| 381 | |
| 382 | hr = CoCreateInstance(&CLSID_SystemDeviceEnum, NULL, |
| 383 | CLSCTX_INPROC_SERVER, &IID_ICreateDevEnum, |
| 384 | (void**)&dev_enum); |
| 385 | if (FAILED(hr) || |
| 386 | ICreateDevEnum_CreateClassEnumerator(dev_enum, |
| 387 | &CLSID_VideoInputDeviceCategory, &enum_cat, 0) != S_OK) |
| 388 | { |
| 389 | PJ_LOG(4,(THIS_FILE, "Windows found no video input devices")); |
| 390 | if (dev_enum) |
| 391 | ICreateDevEnum_Release(dev_enum); |
| 392 | dev_count = 0; |
| 393 | } else { |
| 394 | while (IEnumMoniker_Next(enum_cat, 1, &moniker, &fetched) == S_OK) { |
| 395 | dev_count++; |
| 396 | } |
| 397 | } |
| 398 | |
| 399 | /* Add renderer device */ |
| 400 | dev_count += 1; |
| 401 | df->dev_info = (struct dshow_dev_info*) |
| 402 | pj_pool_calloc(df->dev_pool, dev_count, |
| 403 | sizeof(struct dshow_dev_info)); |
| 404 | |
| 405 | if (dev_count > 1) { |
| 406 | IEnumMoniker_Reset(enum_cat); |
| 407 | while (IEnumMoniker_Next(enum_cat, 1, &moniker, &fetched) == S_OK) { |
| 408 | IPropertyBag *prop_bag; |
| 409 | |
| 410 | hr = IMoniker_BindToStorage(moniker, 0, 0, &IID_IPropertyBag, |
| 411 | (void**)&prop_bag); |
| 412 | if (SUCCEEDED(hr)) { |
| 413 | VARIANT var_name; |
| 414 | |
| 415 | VariantInit(&var_name); |
| 416 | hr = IPropertyBag_Read(prop_bag, L"FriendlyName", |
| 417 | &var_name, NULL); |
| 418 | if (SUCCEEDED(hr) && var_name.bstrVal) { |
| 419 | WCHAR *wszDisplayName = NULL; |
| 420 | IBaseFilter *filter; |
| 421 | |
| 422 | ddi = &df->dev_info[df->dev_count++]; |
| 423 | pj_bzero(ddi, sizeof(*ddi)); |
| 424 | pj_unicode_to_ansi(var_name.bstrVal, |
| 425 | wcslen(var_name.bstrVal), |
| 426 | ddi->info.name, |
| 427 | sizeof(ddi->info.name)); |
| 428 | |
| 429 | hr = IMoniker_GetDisplayName(moniker, NULL, NULL, |
| 430 | &wszDisplayName); |
| 431 | if (hr == S_OK && wszDisplayName) { |
| 432 | pj_memcpy(ddi->display_name, wszDisplayName, |
| 433 | (wcslen(wszDisplayName)+1) * sizeof(WCHAR)); |
| 434 | CoTaskMemFree(wszDisplayName); |
| 435 | } |
| 436 | |
| 437 | strncpy(ddi->info.driver, "dshow", |
| 438 | sizeof(ddi->info.driver)); |
| 439 | ddi->info.driver[sizeof(ddi->info.driver)-1] = '\0'; |
| 440 | ddi->info.dir = PJMEDIA_DIR_CAPTURE; |
| 441 | ddi->info.has_callback = PJ_TRUE; |
| 442 | |
| 443 | /* Set the device capabilities here */ |
| 444 | ddi->info.caps = PJMEDIA_VID_DEV_CAP_FORMAT; |
| 445 | |
| 446 | hr = get_cap_device(df, df->dev_count-1, &filter); |
| 447 | if (SUCCEEDED(hr)) { |
| 448 | unsigned j; |
| 449 | pj_bool_t sup_fmt[sizeof(dshow_fmts)/sizeof(dshow_fmts[0])]; |
| 450 | |
| 451 | pj_bzero(sup_fmt, sizeof(sup_fmt)); |
| 452 | enum_dev_cap(filter, ddi->info.dir, NULL, NULL, NULL, sup_fmt); |
| 453 | |
| 454 | ddi->info.fmt_cnt = 0; |
| 455 | for (j = 0; |
| 456 | j < sizeof(dshow_fmts)/sizeof(dshow_fmts[0]); |
| 457 | j++) |
| 458 | { |
| 459 | if (!sup_fmt[j]) |
| 460 | continue; |
| 461 | pjmedia_format_init_video( |
| 462 | &ddi->info.fmt[ddi->info.fmt_cnt++], |
| 463 | dshow_fmts[j].pjmedia_format, |
| 464 | DEFAULT_WIDTH, DEFAULT_HEIGHT, |
| 465 | DEFAULT_FPS, 1); |
| 466 | } |
| 467 | } |
| 468 | } |
| 469 | VariantClear(&var_name); |
| 470 | |
| 471 | IPropertyBag_Release(prop_bag); |
| 472 | } |
| 473 | IMoniker_Release(moniker); |
| 474 | } |
| 475 | |
| 476 | IEnumMoniker_Release(enum_cat); |
| 477 | ICreateDevEnum_Release(dev_enum); |
| 478 | } |
| 479 | |
| 480 | #if HAS_VMR |
| 481 | ddi = &df->dev_info[df->dev_count++]; |
| 482 | pj_bzero(ddi, sizeof(*ddi)); |
| 483 | pj_ansi_strncpy(ddi->info.name, "Video Mixing Renderer", |
| 484 | sizeof(ddi->info.name)); |
| 485 | ddi->info.name[sizeof(ddi->info.name)-1] = '\0'; |
| 486 | pj_ansi_strncpy(ddi->info.driver, "dshow", sizeof(ddi->info.driver)); |
| 487 | ddi->info.driver[sizeof(ddi->info.driver)-1] = '\0'; |
| 488 | ddi->info.dir = PJMEDIA_DIR_RENDER; |
| 489 | ddi->info.has_callback = PJ_FALSE; |
| 490 | ddi->info.caps = PJMEDIA_VID_DEV_CAP_FORMAT; |
| 491 | // TODO: |
| 492 | // ddi->info.caps |= PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW; |
| 493 | |
| 494 | ddi->info.fmt_cnt = 1; |
| 495 | pjmedia_format_init_video(&ddi->info.fmt[0], dshow_fmts[0].pjmedia_format, |
| 496 | DEFAULT_WIDTH, DEFAULT_HEIGHT, |
| 497 | DEFAULT_FPS, 1); |
| 498 | #endif |
| 499 | |
| 500 | PJ_LOG(4, (THIS_FILE, "DShow has %d devices:", |
| 501 | df->dev_count)); |
| 502 | for (c = 0; c < df->dev_count; ++c) { |
| 503 | PJ_LOG(4, (THIS_FILE, " dev_id %d: %s (%s)", |
| 504 | c, |
| 505 | df->dev_info[c].info.name, |
| 506 | df->dev_info[c].info.dir & PJMEDIA_DIR_CAPTURE ? |
| 507 | "capture" : "render")); |
| 508 | } |
| 509 | |
| 510 | return PJ_SUCCESS; |
| 511 | } |
| 512 | |
| 513 | /* API: get number of devices */ |
| 514 | static unsigned dshow_factory_get_dev_count(pjmedia_vid_dev_factory *f) |
| 515 | { |
| 516 | struct dshow_factory *df = (struct dshow_factory*)f; |
| 517 | return df->dev_count; |
| 518 | } |
| 519 | |
| 520 | /* API: get device info */ |
| 521 | static pj_status_t dshow_factory_get_dev_info(pjmedia_vid_dev_factory *f, |
| 522 | unsigned index, |
| 523 | pjmedia_vid_dev_info *info) |
| 524 | { |
| 525 | struct dshow_factory *df = (struct dshow_factory*)f; |
| 526 | |
| 527 | PJ_ASSERT_RETURN(index < df->dev_count, PJMEDIA_EVID_INVDEV); |
| 528 | |
| 529 | pj_memcpy(info, &df->dev_info[index].info, sizeof(*info)); |
| 530 | |
| 531 | return PJ_SUCCESS; |
| 532 | } |
| 533 | |
| 534 | /* API: create default device parameter */ |
| 535 | static pj_status_t dshow_factory_default_param(pj_pool_t *pool, |
| 536 | pjmedia_vid_dev_factory *f, |
| 537 | unsigned index, |
| 538 | pjmedia_vid_dev_param *param) |
| 539 | { |
| 540 | struct dshow_factory *df = (struct dshow_factory*)f; |
| 541 | struct dshow_dev_info *di = &df->dev_info[index]; |
| 542 | |
| 543 | PJ_ASSERT_RETURN(index < df->dev_count, PJMEDIA_EVID_INVDEV); |
| 544 | |
| 545 | PJ_UNUSED_ARG(pool); |
| 546 | |
| 547 | pj_bzero(param, sizeof(*param)); |
| 548 | if (di->info.dir & PJMEDIA_DIR_CAPTURE) { |
| 549 | param->dir = PJMEDIA_DIR_CAPTURE; |
| 550 | param->cap_id = index; |
| 551 | param->rend_id = PJMEDIA_VID_INVALID_DEV; |
| 552 | } else if (di->info.dir & PJMEDIA_DIR_RENDER) { |
| 553 | param->dir = PJMEDIA_DIR_RENDER; |
| 554 | param->rend_id = index; |
| 555 | param->cap_id = PJMEDIA_VID_INVALID_DEV; |
| 556 | } else { |
| 557 | return PJMEDIA_EVID_INVDEV; |
| 558 | } |
| 559 | |
| 560 | /* Set the device capabilities here */ |
| 561 | param->clock_rate = DEFAULT_CLOCK_RATE; |
| 562 | param->flags = PJMEDIA_VID_DEV_CAP_FORMAT; |
| 563 | |
| 564 | pjmedia_format_copy(¶m->fmt, &di->info.fmt[0]); |
| 565 | |
| 566 | return PJ_SUCCESS; |
| 567 | } |
| 568 | |
| 569 | static void input_cb(void *user_data, IMediaSample *pMediaSample) |
| 570 | { |
| 571 | struct dshow_stream *strm = (struct dshow_stream*)user_data; |
| 572 | pjmedia_frame frame = {0}; |
| 573 | |
| 574 | if (strm->quit_flag) { |
| 575 | strm->cap_thread_exited = PJ_TRUE; |
| 576 | return; |
| 577 | } |
| 578 | |
| 579 | if (strm->cap_thread_initialized == 0 || !pj_thread_is_registered()) |
| 580 | { |
| 581 | pj_status_t status; |
| 582 | |
| 583 | status = pj_thread_register("ds_cap", strm->cap_thread_desc, |
| 584 | &strm->cap_thread); |
| 585 | if (status != PJ_SUCCESS) |
| 586 | return; |
| 587 | strm->cap_thread_initialized = 1; |
| 588 | PJ_LOG(5,(THIS_FILE, "Capture thread started")); |
| 589 | } |
| 590 | |
| 591 | frame.type = PJMEDIA_FRAME_TYPE_VIDEO; |
| 592 | IMediaSample_GetPointer(pMediaSample, (BYTE **)&frame.buf); |
| 593 | frame.size = IMediaSample_GetActualDataLength(pMediaSample); |
| 594 | frame.bit_info = 0; |
| 595 | frame.timestamp = strm->cap_ts; |
| 596 | strm->cap_ts.u64 += strm->cap_ts_inc; |
| 597 | |
| 598 | if (strm->frm_buf_size) { |
| 599 | unsigned i, stride; |
| 600 | BYTE *src_buf, *dst_buf; |
| 601 | pjmedia_video_format_detail *vfd; |
| 602 | |
| 603 | /* Image is bottom-up, convert it to top-down. */ |
| 604 | src_buf = dst_buf = (BYTE *)frame.buf; |
| 605 | stride = strm->frm_buf_size; |
| 606 | vfd = pjmedia_format_get_video_format_detail(&strm->param.fmt, |
| 607 | PJ_TRUE); |
| 608 | src_buf += (vfd->size.h - 1) * stride; |
| 609 | |
| 610 | for (i = vfd->size.h / 2; i > 0; i--) { |
| 611 | memcpy(strm->frm_buf, dst_buf, stride); |
| 612 | memcpy(dst_buf, src_buf, stride); |
| 613 | memcpy(src_buf, strm->frm_buf, stride); |
| 614 | dst_buf += stride; |
| 615 | src_buf -= stride; |
| 616 | } |
| 617 | } |
| 618 | |
| 619 | if (strm->vid_cb.capture_cb) |
| 620 | (*strm->vid_cb.capture_cb)(&strm->base, strm->user_data, &frame); |
| 621 | } |
| 622 | |
| 623 | /* API: Put frame from stream */ |
| 624 | static pj_status_t dshow_stream_put_frame(pjmedia_vid_dev_stream *strm, |
| 625 | const pjmedia_frame *frame) |
| 626 | { |
| 627 | struct dshow_stream *stream = (struct dshow_stream*)strm; |
| 628 | HRESULT hr; |
| 629 | |
| 630 | if (stream->quit_flag) { |
| 631 | stream->rend_thread_exited = PJ_TRUE; |
| 632 | return PJ_SUCCESS; |
| 633 | } |
| 634 | |
| 635 | hr = SourceFilter_Deliver(stream->dgraph.csource_filter, |
| 636 | frame->buf, (long)frame->size); |
| 637 | if (FAILED(hr)) |
| 638 | return hr; |
| 639 | |
| 640 | return PJ_SUCCESS; |
| 641 | } |
| 642 | |
| 643 | static dshow_fmt_info* get_dshow_format_info(pjmedia_format_id id) |
| 644 | { |
| 645 | unsigned i; |
| 646 | |
| 647 | for (i = 0; i < sizeof(dshow_fmts)/sizeof(dshow_fmts[0]); i++) { |
| 648 | if (dshow_fmts[i].pjmedia_format == id && dshow_fmts[i].enabled) |
| 649 | return &dshow_fmts[i]; |
| 650 | } |
| 651 | |
| 652 | return NULL; |
| 653 | } |
| 654 | |
| 655 | static pj_status_t create_filter_graph(pjmedia_dir dir, |
| 656 | unsigned id, |
| 657 | pj_bool_t use_def_size, |
| 658 | pj_bool_t use_def_fps, |
| 659 | struct dshow_factory *df, |
| 660 | struct dshow_stream *strm, |
| 661 | struct dshow_graph *graph) |
| 662 | { |
| 663 | HRESULT hr; |
| 664 | IEnumPins *pEnum; |
| 665 | IPin *srcpin = NULL; |
| 666 | IPin *sinkpin = NULL; |
| 667 | AM_MEDIA_TYPE *mediatype= NULL, mtype; |
| 668 | VIDEOINFOHEADER *video_info, *vi = NULL; |
| 669 | pjmedia_video_format_detail *vfd; |
| 670 | const pjmedia_video_format_info *vfi; |
| 671 | |
| 672 | vfi = pjmedia_get_video_format_info(pjmedia_video_format_mgr_instance(), |
| 673 | strm->param.fmt.id); |
| 674 | if (!vfi) |
| 675 | return PJMEDIA_EVID_BADFORMAT; |
| 676 | |
| 677 | hr = CoCreateInstance(&CLSID_FilterGraph, NULL, CLSCTX_INPROC, |
| 678 | &IID_IFilterGraph, (LPVOID *)&graph->filter_graph); |
| 679 | if (FAILED(hr)) { |
| 680 | goto on_error; |
| 681 | } |
| 682 | |
| 683 | hr = IFilterGraph_QueryInterface(graph->filter_graph, &IID_IMediaFilter, |
| 684 | (LPVOID *)&graph->media_filter); |
| 685 | if (FAILED(hr)) { |
| 686 | goto on_error; |
| 687 | } |
| 688 | |
| 689 | if (dir == PJMEDIA_DIR_CAPTURE) { |
| 690 | hr = get_cap_device(df, id, &graph->source_filter); |
| 691 | if (FAILED(hr)) { |
| 692 | goto on_error; |
| 693 | } |
| 694 | } else { |
| 695 | graph->source_filter = SourceFilter_Create(&graph->csource_filter); |
| 696 | } |
| 697 | |
| 698 | hr = IFilterGraph_AddFilter(graph->filter_graph, graph->source_filter, |
| 699 | L"capture"); |
| 700 | if (FAILED(hr)) { |
| 701 | goto on_error; |
| 702 | } |
| 703 | |
| 704 | if (dir == PJMEDIA_DIR_CAPTURE) { |
| 705 | graph->rend_filter = NullRenderer_Create(input_cb, strm); |
| 706 | } else { |
| 707 | hr = CoCreateInstance(&CLSID_VideoMixingRenderer, NULL, |
| 708 | CLSCTX_INPROC, &IID_IBaseFilter, |
| 709 | (LPVOID *)&graph->rend_filter); |
| 710 | if (FAILED (hr)) { |
| 711 | goto on_error; |
| 712 | } |
| 713 | } |
| 714 | |
| 715 | IBaseFilter_EnumPins(graph->rend_filter, &pEnum); |
| 716 | if (SUCCEEDED(hr)) { |
| 717 | // Loop through all the pins |
| 718 | IPin *pPin = NULL; |
| 719 | |
| 720 | while (IEnumPins_Next(pEnum, 1, &pPin, NULL) == S_OK) { |
| 721 | PIN_DIRECTION pindirtmp; |
| 722 | |
| 723 | hr = IPin_QueryDirection(pPin, &pindirtmp); |
| 724 | if (hr == S_OK && pindirtmp == PINDIR_INPUT) { |
| 725 | sinkpin = pPin; |
| 726 | break; |
| 727 | } |
| 728 | IPin_Release(pPin); |
| 729 | } |
| 730 | IEnumPins_Release(pEnum); |
| 731 | } |
| 732 | |
| 733 | vfd = pjmedia_format_get_video_format_detail(&strm->param.fmt, PJ_TRUE); |
| 734 | |
| 735 | enum_dev_cap(graph->source_filter, dir, |
| 736 | get_dshow_format_info(strm->param.fmt.id)->dshow_format, |
| 737 | &mediatype, &srcpin, NULL); |
| 738 | graph->mediatype = mediatype; |
| 739 | |
| 740 | if (srcpin && dir == PJMEDIA_DIR_RENDER) { |
| 741 | mediatype = graph->mediatype = &mtype; |
| 742 | |
| 743 | memset (mediatype, 0, sizeof(AM_MEDIA_TYPE)); |
| 744 | mediatype->majortype = MEDIATYPE_Video; |
| 745 | mediatype->subtype = *(get_dshow_format_info(strm->param.fmt.id)-> |
| 746 | dshow_format); |
| 747 | mediatype->bFixedSizeSamples = TRUE; |
| 748 | mediatype->bTemporalCompression = FALSE; |
| 749 | |
| 750 | vi = (VIDEOINFOHEADER *) |
| 751 | CoTaskMemAlloc(sizeof(VIDEOINFOHEADER)); |
| 752 | memset (vi, 0, sizeof(VIDEOINFOHEADER)); |
| 753 | mediatype->formattype = FORMAT_VideoInfo; |
| 754 | mediatype->cbFormat = sizeof(VIDEOINFOHEADER); |
| 755 | mediatype->pbFormat = (BYTE *)vi; |
| 756 | |
| 757 | vi->rcSource.bottom = vfd->size.h; |
| 758 | vi->rcSource.right = vfd->size.w; |
| 759 | vi->rcTarget.bottom = vfd->size.h; |
| 760 | vi->rcTarget.right = vfd->size.w; |
| 761 | |
| 762 | vi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); |
| 763 | vi->bmiHeader.biPlanes = 1; |
| 764 | vi->bmiHeader.biBitCount = vfi->bpp; |
| 765 | vi->bmiHeader.biCompression = strm->param.fmt.id; |
| 766 | } |
| 767 | |
| 768 | if (!srcpin || !sinkpin || !mediatype) { |
| 769 | hr = VFW_E_TYPE_NOT_ACCEPTED; |
| 770 | goto on_error; |
| 771 | } |
| 772 | video_info = (VIDEOINFOHEADER *) mediatype->pbFormat; |
| 773 | if (!use_def_size) { |
| 774 | video_info->bmiHeader.biWidth = vfd->size.w; |
| 775 | video_info->bmiHeader.biHeight = vfd->size.h; |
| 776 | } |
| 777 | if (video_info->AvgTimePerFrame == 0 || |
| 778 | (!use_def_fps && vfd->fps.num != 0)) |
| 779 | { |
| 780 | video_info->AvgTimePerFrame = (LONGLONG) (10000000 * |
| 781 | (double)vfd->fps.denum / |
| 782 | vfd->fps.num); |
| 783 | } |
| 784 | video_info->bmiHeader.biSizeImage = DIBSIZE(video_info->bmiHeader); |
| 785 | mediatype->lSampleSize = DIBSIZE(video_info->bmiHeader); |
| 786 | if (graph->csource_filter) |
| 787 | SourceFilter_SetMediaType(graph->csource_filter, |
| 788 | mediatype); |
| 789 | |
| 790 | hr = IFilterGraph_AddFilter(graph->filter_graph, |
| 791 | (IBaseFilter *)graph->rend_filter, |
| 792 | L"renderer"); |
| 793 | if (FAILED(hr)) |
| 794 | goto on_error; |
| 795 | |
| 796 | hr = IFilterGraph_ConnectDirect(graph->filter_graph, srcpin, sinkpin, |
| 797 | mediatype); |
| 798 | if (SUCCEEDED(hr)) { |
| 799 | if (use_def_size || use_def_fps) { |
| 800 | pjmedia_format_init_video(&strm->param.fmt, strm->param.fmt.id, |
| 801 | video_info->bmiHeader.biWidth, |
| 802 | video_info->bmiHeader.biHeight, |
| 803 | 10000000, |
| 804 | (unsigned)video_info->AvgTimePerFrame); |
| 805 | } |
| 806 | |
| 807 | strm->frm_buf_size = 0; |
| 808 | if (dir == PJMEDIA_DIR_CAPTURE && |
| 809 | video_info->bmiHeader.biCompression == BI_RGB && |
| 810 | video_info->bmiHeader.biHeight > 0) |
| 811 | { |
| 812 | /* Allocate buffer to flip the captured image. */ |
| 813 | strm->frm_buf_size = (video_info->bmiHeader.biBitCount >> 3) * |
| 814 | video_info->bmiHeader.biWidth; |
| 815 | strm->frm_buf = pj_pool_alloc(strm->pool, strm->frm_buf_size); |
| 816 | } |
| 817 | } |
| 818 | |
| 819 | on_error: |
| 820 | if (srcpin) |
| 821 | IPin_Release(srcpin); |
| 822 | if (sinkpin) |
| 823 | IPin_Release(sinkpin); |
| 824 | if (vi) |
| 825 | CoTaskMemFree(vi); |
| 826 | if (FAILED(hr)) { |
| 827 | char msg[80]; |
| 828 | if (AMGetErrorText(hr, msg, sizeof(msg))) { |
| 829 | PJ_LOG(4,(THIS_FILE, "Error creating filter graph: %s (hr=0x%x)", |
| 830 | msg, hr)); |
| 831 | } |
| 832 | return PJ_EUNKNOWN; |
| 833 | } |
| 834 | |
| 835 | return PJ_SUCCESS; |
| 836 | } |
| 837 | |
| 838 | static void destroy_filter_graph(struct dshow_stream * stream) |
| 839 | { |
| 840 | if (stream->dgraph.source_filter) { |
| 841 | IBaseFilter_Release(stream->dgraph.source_filter); |
| 842 | stream->dgraph.source_filter = NULL; |
| 843 | } |
| 844 | if (stream->dgraph.rend_filter) { |
| 845 | IBaseFilter_Release(stream->dgraph.rend_filter); |
| 846 | stream->dgraph.rend_filter = NULL; |
| 847 | } |
| 848 | if (stream->dgraph.media_filter) { |
| 849 | IMediaFilter_Release(stream->dgraph.media_filter); |
| 850 | stream->dgraph.media_filter = NULL; |
| 851 | } |
| 852 | if (stream->dgraph.filter_graph) { |
| 853 | IFilterGraph_Release(stream->dgraph.filter_graph); |
| 854 | stream->dgraph.filter_graph = NULL; |
| 855 | } |
| 856 | } |
| 857 | |
| 858 | /* API: create stream */ |
| 859 | static pj_status_t dshow_factory_create_stream( |
| 860 | pjmedia_vid_dev_factory *f, |
| 861 | pjmedia_vid_dev_param *param, |
| 862 | const pjmedia_vid_dev_cb *cb, |
| 863 | void *user_data, |
| 864 | pjmedia_vid_dev_stream **p_vid_strm) |
| 865 | { |
| 866 | struct dshow_factory *df = (struct dshow_factory*)f; |
| 867 | pj_pool_t *pool; |
| 868 | struct dshow_stream *strm; |
| 869 | pj_status_t status; |
| 870 | |
| 871 | PJ_ASSERT_RETURN(param->dir == PJMEDIA_DIR_CAPTURE || |
| 872 | param->dir == PJMEDIA_DIR_RENDER, PJ_EINVAL); |
| 873 | |
| 874 | if (!get_dshow_format_info(param->fmt.id)) |
| 875 | return PJMEDIA_EVID_BADFORMAT; |
| 876 | |
| 877 | /* Create and Initialize stream descriptor */ |
| 878 | pool = pj_pool_create(df->pf, "dshow-dev", 1000, 1000, NULL); |
| 879 | PJ_ASSERT_RETURN(pool != NULL, PJ_ENOMEM); |
| 880 | |
| 881 | strm = PJ_POOL_ZALLOC_T(pool, struct dshow_stream); |
| 882 | pj_memcpy(&strm->param, param, sizeof(*param)); |
| 883 | strm->pool = pool; |
| 884 | pj_memcpy(&strm->vid_cb, cb, sizeof(*cb)); |
| 885 | strm->user_data = user_data; |
| 886 | |
| 887 | if (param->dir & PJMEDIA_DIR_CAPTURE) { |
| 888 | const pjmedia_video_format_detail *vfd; |
| 889 | |
| 890 | /* Create capture stream here */ |
| 891 | status = create_filter_graph(PJMEDIA_DIR_CAPTURE, param->cap_id, |
| 892 | PJ_FALSE, PJ_FALSE, df, strm, |
| 893 | &strm->dgraph); |
| 894 | if (status != PJ_SUCCESS) { |
| 895 | destroy_filter_graph(strm); |
| 896 | /* Try to use default fps */ |
| 897 | PJ_LOG(4,(THIS_FILE, "Trying to open dshow dev with default fps")); |
| 898 | status = create_filter_graph(PJMEDIA_DIR_CAPTURE, param->cap_id, |
| 899 | PJ_FALSE, PJ_TRUE, df, strm, |
| 900 | &strm->dgraph); |
| 901 | |
| 902 | if (status != PJ_SUCCESS) { |
| 903 | /* Still failed, now try to use default fps and size */ |
| 904 | destroy_filter_graph(strm); |
| 905 | /* Try to use default fps */ |
| 906 | PJ_LOG(4,(THIS_FILE, "Trying to open dshow dev with default " |
| 907 | "size & fps")); |
| 908 | status = create_filter_graph(PJMEDIA_DIR_CAPTURE, |
| 909 | param->cap_id, |
| 910 | PJ_TRUE, PJ_TRUE, df, strm, |
| 911 | &strm->dgraph); |
| 912 | } |
| 913 | |
| 914 | if (status != PJ_SUCCESS) |
| 915 | goto on_error; |
| 916 | pj_memcpy(param, &strm->param, sizeof(*param)); |
| 917 | } |
| 918 | |
| 919 | vfd = pjmedia_format_get_video_format_detail(¶m->fmt, PJ_TRUE); |
| 920 | strm->cap_ts_inc = PJMEDIA_SPF2(param->clock_rate, &vfd->fps, 1); |
| 921 | } else if (param->dir & PJMEDIA_DIR_RENDER) { |
| 922 | /* Create render stream here */ |
| 923 | status = create_filter_graph(PJMEDIA_DIR_RENDER, param->rend_id, |
| 924 | PJ_FALSE, PJ_FALSE, df, strm, |
| 925 | &strm->dgraph); |
| 926 | if (status != PJ_SUCCESS) |
| 927 | goto on_error; |
| 928 | } |
| 929 | |
| 930 | /* Apply the remaining settings */ |
| 931 | if (param->flags & PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW) { |
| 932 | dshow_stream_set_cap(&strm->base, |
| 933 | PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW, |
| 934 | ¶m->window); |
| 935 | } |
| 936 | |
| 937 | /* Done */ |
| 938 | strm->base.op = &stream_op; |
| 939 | *p_vid_strm = &strm->base; |
| 940 | |
| 941 | return PJ_SUCCESS; |
| 942 | |
| 943 | on_error: |
| 944 | dshow_stream_destroy((pjmedia_vid_dev_stream *)strm); |
| 945 | return status; |
| 946 | } |
| 947 | |
| 948 | /* API: Get stream info. */ |
| 949 | static pj_status_t dshow_stream_get_param(pjmedia_vid_dev_stream *s, |
| 950 | pjmedia_vid_dev_param *pi) |
| 951 | { |
| 952 | struct dshow_stream *strm = (struct dshow_stream*)s; |
| 953 | |
| 954 | PJ_ASSERT_RETURN(strm && pi, PJ_EINVAL); |
| 955 | |
| 956 | pj_memcpy(pi, &strm->param, sizeof(*pi)); |
| 957 | |
| 958 | if (dshow_stream_get_cap(s, PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW, |
| 959 | &pi->window) == PJ_SUCCESS) |
| 960 | { |
| 961 | pi->flags |= PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW; |
| 962 | } |
| 963 | |
| 964 | return PJ_SUCCESS; |
| 965 | } |
| 966 | |
| 967 | /* API: get capability */ |
| 968 | static pj_status_t dshow_stream_get_cap(pjmedia_vid_dev_stream *s, |
| 969 | pjmedia_vid_dev_cap cap, |
| 970 | void *pval) |
| 971 | { |
| 972 | struct dshow_stream *strm = (struct dshow_stream*)s; |
| 973 | |
| 974 | PJ_UNUSED_ARG(strm); |
| 975 | |
| 976 | PJ_ASSERT_RETURN(s && pval, PJ_EINVAL); |
| 977 | |
| 978 | if (cap==PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW) |
| 979 | { |
| 980 | *(unsigned*)pval = 0; |
| 981 | return PJ_SUCCESS; |
| 982 | } else { |
| 983 | return PJMEDIA_EVID_INVCAP; |
| 984 | } |
| 985 | } |
| 986 | |
| 987 | /* API: set capability */ |
| 988 | static pj_status_t dshow_stream_set_cap(pjmedia_vid_dev_stream *s, |
| 989 | pjmedia_vid_dev_cap cap, |
| 990 | const void *pval) |
| 991 | { |
| 992 | struct dshow_stream *strm = (struct dshow_stream*)s; |
| 993 | |
| 994 | PJ_UNUSED_ARG(strm); |
| 995 | |
| 996 | PJ_ASSERT_RETURN(s && pval, PJ_EINVAL); |
| 997 | |
| 998 | if (cap==PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW) |
| 999 | { |
| 1000 | // set renderer's window here |
| 1001 | return PJ_SUCCESS; |
| 1002 | } |
| 1003 | |
| 1004 | return PJMEDIA_EVID_INVCAP; |
| 1005 | } |
| 1006 | |
| 1007 | /* API: Start stream. */ |
| 1008 | static pj_status_t dshow_stream_start(pjmedia_vid_dev_stream *strm) |
| 1009 | { |
| 1010 | struct dshow_stream *stream = (struct dshow_stream*)strm; |
| 1011 | HRESULT hr; |
| 1012 | |
| 1013 | stream->quit_flag = PJ_FALSE; |
| 1014 | stream->cap_thread_exited = PJ_FALSE; |
| 1015 | stream->rend_thread_exited = PJ_FALSE; |
| 1016 | |
| 1017 | hr = IMediaFilter_Run(stream->dgraph.media_filter, 0); |
| 1018 | if (FAILED(hr)) { |
| 1019 | char msg[80]; |
| 1020 | if (AMGetErrorText(hr, msg, sizeof(msg))) { |
| 1021 | PJ_LOG(4,(THIS_FILE, "Error starting media: %s", msg)); |
| 1022 | } |
| 1023 | return PJ_EUNKNOWN; |
| 1024 | } |
| 1025 | |
| 1026 | PJ_LOG(4, (THIS_FILE, "Starting dshow video stream")); |
| 1027 | |
| 1028 | return PJ_SUCCESS; |
| 1029 | } |
| 1030 | |
| 1031 | /* API: Stop stream. */ |
| 1032 | static pj_status_t dshow_stream_stop(pjmedia_vid_dev_stream *strm) |
| 1033 | { |
| 1034 | struct dshow_stream *stream = (struct dshow_stream*)strm; |
| 1035 | unsigned i; |
| 1036 | |
| 1037 | stream->quit_flag = PJ_TRUE; |
| 1038 | if (stream->cap_thread) { |
| 1039 | for (i=0; !stream->cap_thread_exited && i<100; ++i) |
| 1040 | pj_thread_sleep(10); |
| 1041 | } |
| 1042 | for (i=0; !stream->rend_thread_exited && i<100; ++i) |
| 1043 | pj_thread_sleep(10); |
| 1044 | |
| 1045 | IMediaFilter_Stop(stream->dgraph.media_filter); |
| 1046 | |
| 1047 | PJ_LOG(4, (THIS_FILE, "Stopping dshow video stream")); |
| 1048 | |
| 1049 | return PJ_SUCCESS; |
| 1050 | } |
| 1051 | |
| 1052 | /* API: Destroy stream. */ |
| 1053 | static pj_status_t dshow_stream_destroy(pjmedia_vid_dev_stream *strm) |
| 1054 | { |
| 1055 | struct dshow_stream *stream = (struct dshow_stream*)strm; |
| 1056 | |
| 1057 | PJ_ASSERT_RETURN(stream != NULL, PJ_EINVAL); |
| 1058 | |
| 1059 | dshow_stream_stop(strm); |
| 1060 | destroy_filter_graph(stream); |
| 1061 | |
| 1062 | pj_pool_release(stream->pool); |
| 1063 | |
| 1064 | return PJ_SUCCESS; |
| 1065 | } |
| 1066 | |
| 1067 | #endif /* PJMEDIA_VIDEO_DEV_HAS_DSHOW */ |