Sauw Ming | 6e6c215 | 2010-12-14 13:03:10 +0000 | [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 | |
| 24 | #if PJMEDIA_VIDEO_DEV_HAS_QT |
| 25 | |
| 26 | #include <QTKit/QTKit.h> |
| 27 | |
| 28 | #define THIS_FILE "qt_dev.c" |
| 29 | #define DEFAULT_CLOCK_RATE 9000 |
| 30 | #define DEFAULT_WIDTH 640 |
| 31 | #define DEFAULT_HEIGHT 480 |
| 32 | #define DEFAULT_FPS 15 |
| 33 | |
| 34 | #define kCVPixelFormatType_422YpCbCr8_yuvs 'yuvs' |
| 35 | |
| 36 | typedef struct qt_fmt_info |
| 37 | { |
| 38 | pjmedia_format_id pjmedia_format; |
| 39 | unsigned qt_format; |
| 40 | } qt_fmt_info; |
| 41 | |
| 42 | static qt_fmt_info qt_fmts[] = |
| 43 | { |
| 44 | {PJMEDIA_FORMAT_YUY2, kCVPixelFormatType_422YpCbCr8_yuvs} , |
| 45 | }; |
| 46 | |
| 47 | /* qt device info */ |
| 48 | struct qt_dev_info |
| 49 | { |
| 50 | pjmedia_vid_dev_info info; |
| 51 | char dev_id[192]; |
| 52 | }; |
| 53 | |
| 54 | /* qt factory */ |
| 55 | struct qt_factory |
| 56 | { |
| 57 | pjmedia_vid_dev_factory base; |
| 58 | pj_pool_t *pool; |
| 59 | pj_pool_factory *pf; |
| 60 | |
| 61 | unsigned dev_count; |
| 62 | struct qt_dev_info *dev_info; |
| 63 | }; |
| 64 | |
| 65 | @interface VOutDelegate: NSObject |
| 66 | { |
| 67 | @public |
| 68 | struct qt_stream *stream; |
| 69 | } |
| 70 | @end |
| 71 | |
| 72 | /* Video stream. */ |
| 73 | struct qt_stream |
| 74 | { |
| 75 | pjmedia_vid_stream base; /**< Base stream */ |
| 76 | pjmedia_vid_param param; /**< Settings */ |
| 77 | pj_pool_t *pool; /**< Memory pool. */ |
| 78 | |
| 79 | pjmedia_vid_cb vid_cb; /**< Stream callback. */ |
| 80 | void *user_data; /**< Application data. */ |
| 81 | |
| 82 | QTCaptureSession *cap_session; |
| 83 | QTCaptureDeviceInput *dev_input; |
| 84 | QTCaptureDecompressedVideoOutput *video_output; |
| 85 | VOutDelegate *vout_delegate; |
| 86 | }; |
| 87 | |
| 88 | |
| 89 | /* Prototypes */ |
| 90 | static pj_status_t qt_factory_init(pjmedia_vid_dev_factory *f); |
| 91 | static pj_status_t qt_factory_destroy(pjmedia_vid_dev_factory *f); |
| 92 | static unsigned qt_factory_get_dev_count(pjmedia_vid_dev_factory *f); |
| 93 | static pj_status_t qt_factory_get_dev_info(pjmedia_vid_dev_factory *f, |
| 94 | unsigned index, |
| 95 | pjmedia_vid_dev_info *info); |
| 96 | static pj_status_t qt_factory_default_param(pj_pool_t *pool, |
| 97 | pjmedia_vid_dev_factory *f, |
| 98 | unsigned index, |
| 99 | pjmedia_vid_param *param); |
| 100 | static pj_status_t qt_factory_create_stream(pjmedia_vid_dev_factory *f, |
| 101 | const pjmedia_vid_param *param, |
| 102 | const pjmedia_vid_cb *cb, |
| 103 | void *user_data, |
| 104 | pjmedia_vid_stream **p_vid_strm); |
| 105 | |
| 106 | static pj_status_t qt_stream_get_param(pjmedia_vid_stream *strm, |
| 107 | pjmedia_vid_param *param); |
| 108 | static pj_status_t qt_stream_get_cap(pjmedia_vid_stream *strm, |
| 109 | pjmedia_vid_dev_cap cap, |
| 110 | void *value); |
| 111 | static pj_status_t qt_stream_set_cap(pjmedia_vid_stream *strm, |
| 112 | pjmedia_vid_dev_cap cap, |
| 113 | const void *value); |
| 114 | static pj_status_t qt_stream_start(pjmedia_vid_stream *strm); |
| 115 | static pj_status_t qt_stream_stop(pjmedia_vid_stream *strm); |
| 116 | static pj_status_t qt_stream_destroy(pjmedia_vid_stream *strm); |
| 117 | |
| 118 | /* Operations */ |
| 119 | static pjmedia_vid_dev_factory_op factory_op = |
| 120 | { |
| 121 | &qt_factory_init, |
| 122 | &qt_factory_destroy, |
| 123 | &qt_factory_get_dev_count, |
| 124 | &qt_factory_get_dev_info, |
| 125 | &qt_factory_default_param, |
| 126 | &qt_factory_create_stream |
| 127 | }; |
| 128 | |
| 129 | static pjmedia_vid_stream_op stream_op = |
| 130 | { |
| 131 | &qt_stream_get_param, |
| 132 | &qt_stream_get_cap, |
| 133 | &qt_stream_set_cap, |
| 134 | &qt_stream_start, |
| 135 | NULL, |
| 136 | NULL, |
| 137 | &qt_stream_stop, |
| 138 | &qt_stream_destroy |
| 139 | }; |
| 140 | |
| 141 | |
| 142 | /**************************************************************************** |
| 143 | * Factory operations |
| 144 | */ |
| 145 | /* |
| 146 | * Init qt_ video driver. |
| 147 | */ |
| 148 | pjmedia_vid_dev_factory* pjmedia_qt_factory(pj_pool_factory *pf) |
| 149 | { |
| 150 | struct qt_factory *f; |
| 151 | pj_pool_t *pool; |
| 152 | |
| 153 | pool = pj_pool_create(pf, "qt video", 4000, 4000, NULL); |
| 154 | f = PJ_POOL_ZALLOC_T(pool, struct qt_factory); |
| 155 | f->pf = pf; |
| 156 | f->pool = pool; |
| 157 | f->base.op = &factory_op; |
| 158 | |
| 159 | return &f->base; |
| 160 | } |
| 161 | |
| 162 | |
| 163 | /* API: init factory */ |
| 164 | static pj_status_t qt_factory_init(pjmedia_vid_dev_factory *f) |
| 165 | { |
| 166 | struct qt_factory *qf = (struct qt_factory*)f; |
| 167 | struct qt_dev_info *qdi; |
| 168 | unsigned i, dev_count = 0; |
| 169 | NSArray *dev_array; |
| 170 | |
| 171 | dev_array = [QTCaptureDevice inputDevices]; |
| 172 | for (i = 0; i < [dev_array count]; i++) { |
| 173 | QTCaptureDevice *dev = [dev_array objectAtIndex:i]; |
| 174 | if ([dev hasMediaType:QTMediaTypeVideo] || |
| 175 | [dev hasMediaType:QTMediaTypeMuxed]) |
| 176 | { |
| 177 | dev_count++; |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | /* Initialize input and output devices here */ |
| 182 | qf->dev_count = 0; |
| 183 | qf->dev_info = (struct qt_dev_info*) |
| 184 | pj_pool_calloc(qf->pool, dev_count, |
| 185 | sizeof(struct qt_dev_info)); |
| 186 | for (i = 0; i < [dev_array count]; i++) { |
| 187 | QTCaptureDevice *dev = [dev_array objectAtIndex:i]; |
| 188 | if ([dev hasMediaType:QTMediaTypeVideo] || |
| 189 | [dev hasMediaType:QTMediaTypeMuxed]) |
| 190 | { |
| 191 | unsigned j, k; |
| 192 | |
| 193 | qdi = &qf->dev_info[qf->dev_count++]; |
| 194 | pj_bzero(qdi, sizeof(*qdi)); |
| 195 | [[dev localizedDisplayName] getCString:qdi->info.name |
| 196 | maxLength:sizeof(qdi->info.name) |
| 197 | encoding: |
| 198 | [NSString defaultCStringEncoding]]; |
| 199 | [[dev uniqueID] getCString:qdi->dev_id |
| 200 | maxLength:sizeof(qdi->dev_id) |
| 201 | encoding:[NSString defaultCStringEncoding]]; |
| 202 | strcpy(qdi->info.driver, "QT"); |
| 203 | qdi->info.dir = PJMEDIA_DIR_CAPTURE; |
| 204 | qdi->info.has_callback = PJ_TRUE; |
| 205 | |
| 206 | qdi->info.fmt_cnt = 0; |
| 207 | for (k = 0; k < [[dev formatDescriptions] count]; k++) { |
| 208 | QTFormatDescription *desc = [[dev formatDescriptions] |
| 209 | objectAtIndex:k]; |
| 210 | for (j = 0; j < PJ_ARRAY_SIZE(qt_fmts); j++) { |
| 211 | if ([desc formatType] == qt_fmts[j].qt_format) { |
| 212 | qdi->info.fmt_cnt++; |
| 213 | break; |
| 214 | } |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | qdi->info.caps = PJMEDIA_VID_DEV_CAP_FORMAT; |
| 219 | qdi->info.fmt = (pjmedia_format*) |
| 220 | pj_pool_calloc(qf->pool, qdi->info.fmt_cnt, |
| 221 | sizeof(pjmedia_format)); |
| 222 | for (j = k = 0; k < [[dev formatDescriptions] count]; k++) { |
| 223 | unsigned l; |
| 224 | QTFormatDescription *desc = [[dev formatDescriptions] |
| 225 | objectAtIndex:k]; |
| 226 | for (l = 0; l < PJ_ARRAY_SIZE(qt_fmts); l++) { |
| 227 | if ([desc formatType] == qt_fmts[j].qt_format) { |
| 228 | pjmedia_format *fmt = &qdi->info.fmt[j++]; |
| 229 | pjmedia_format_init_video(fmt, |
| 230 | qt_fmts[l].pjmedia_format, |
| 231 | DEFAULT_WIDTH, |
| 232 | DEFAULT_HEIGHT, |
| 233 | DEFAULT_FPS, 1); |
| 234 | break; |
| 235 | } |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | PJ_LOG(4, (THIS_FILE, " dev_id %d: %s", i, qdi->info.name)); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | PJ_LOG(4, (THIS_FILE, "qt video initialized with %d devices", |
| 244 | qf->dev_count)); |
| 245 | |
| 246 | return PJ_SUCCESS; |
| 247 | } |
| 248 | |
| 249 | /* API: destroy factory */ |
| 250 | static pj_status_t qt_factory_destroy(pjmedia_vid_dev_factory *f) |
| 251 | { |
| 252 | struct qt_factory *qf = (struct qt_factory*)f; |
| 253 | pj_pool_t *pool = qf->pool; |
| 254 | |
| 255 | qf->pool = NULL; |
| 256 | pj_pool_release(pool); |
| 257 | |
| 258 | return PJ_SUCCESS; |
| 259 | } |
| 260 | |
| 261 | /* API: get number of devices */ |
| 262 | static unsigned qt_factory_get_dev_count(pjmedia_vid_dev_factory *f) |
| 263 | { |
| 264 | struct qt_factory *qf = (struct qt_factory*)f; |
| 265 | return qf->dev_count; |
| 266 | } |
| 267 | |
| 268 | /* API: get device info */ |
| 269 | static pj_status_t qt_factory_get_dev_info(pjmedia_vid_dev_factory *f, |
| 270 | unsigned index, |
| 271 | pjmedia_vid_dev_info *info) |
| 272 | { |
| 273 | struct qt_factory *qf = (struct qt_factory*)f; |
| 274 | |
| 275 | PJ_ASSERT_RETURN(index < qf->dev_count, PJMEDIA_EVID_INVDEV); |
| 276 | |
| 277 | pj_memcpy(info, &qf->dev_info[index].info, sizeof(*info)); |
| 278 | |
| 279 | return PJ_SUCCESS; |
| 280 | } |
| 281 | |
| 282 | /* API: create default device parameter */ |
| 283 | static pj_status_t qt_factory_default_param(pj_pool_t *pool, |
| 284 | pjmedia_vid_dev_factory *f, |
| 285 | unsigned index, |
| 286 | pjmedia_vid_param *param) |
| 287 | { |
| 288 | struct qt_factory *qf = (struct qt_factory*)f; |
| 289 | struct qt_dev_info *di = &qf->dev_info[index]; |
| 290 | |
| 291 | PJ_ASSERT_RETURN(index < qf->dev_count, PJMEDIA_EVID_INVDEV); |
| 292 | |
| 293 | PJ_UNUSED_ARG(pool); |
| 294 | |
| 295 | pj_bzero(param, sizeof(*param)); |
| 296 | param->dir = PJMEDIA_DIR_CAPTURE; |
| 297 | param->cap_id = index; |
| 298 | param->rend_id = PJMEDIA_VID_INVALID_DEV; |
| 299 | param->flags = PJMEDIA_VID_DEV_CAP_FORMAT; |
| 300 | param->clock_rate = DEFAULT_CLOCK_RATE; |
| 301 | param->frame_rate.num = DEFAULT_FPS; |
| 302 | param->frame_rate.denum = 1; |
| 303 | pj_memcpy(¶m->fmt, &di->info.fmt[0], sizeof(param->fmt)); |
| 304 | |
| 305 | return PJ_SUCCESS; |
| 306 | } |
| 307 | |
| 308 | @implementation VOutDelegate |
| 309 | - (void)captureOutput:(QTCaptureOutput *)captureOutput |
| 310 | didOutputVideoFrame:(CVImageBufferRef)videoFrame |
| 311 | withSampleBuffer:(QTSampleBuffer *)sampleBuffer |
| 312 | fromConnection:(QTCaptureConnection *)connection |
| 313 | { |
| 314 | unsigned size = [sampleBuffer lengthForAllSamples]; |
| 315 | pjmedia_frame frame; |
| 316 | |
| 317 | if (!videoFrame) |
| 318 | return; |
| 319 | |
| 320 | frame.type = PJMEDIA_TYPE_VIDEO; |
| 321 | frame.buf = [sampleBuffer bytesForAllSamples]; |
| 322 | frame.size = size; |
| 323 | frame.bit_info = 0; |
| 324 | if (stream->vid_cb.capture_cb) |
| 325 | (*stream->vid_cb.capture_cb)(&stream->base, stream->user_data, |
| 326 | &frame); |
| 327 | } |
| 328 | @end |
| 329 | |
| 330 | static qt_fmt_info* get_qt_format_info(pjmedia_format_id id) |
| 331 | { |
| 332 | unsigned i; |
| 333 | |
| 334 | for (i = 0; i < PJ_ARRAY_SIZE(qt_fmts); i++) { |
| 335 | if (qt_fmts[i].pjmedia_format == id) |
| 336 | return &qt_fmts[i]; |
| 337 | } |
| 338 | |
| 339 | return NULL; |
| 340 | } |
| 341 | |
| 342 | /* API: create stream */ |
| 343 | static pj_status_t qt_factory_create_stream(pjmedia_vid_dev_factory *f, |
| 344 | const pjmedia_vid_param *param, |
| 345 | const pjmedia_vid_cb *cb, |
| 346 | void *user_data, |
| 347 | pjmedia_vid_stream **p_vid_strm) |
| 348 | { |
| 349 | struct qt_factory *qf = (struct qt_factory*)f; |
| 350 | pj_pool_t *pool; |
| 351 | struct qt_stream *strm; |
| 352 | const pjmedia_video_format_info *vfi; |
| 353 | pj_status_t status = PJ_SUCCESS; |
| 354 | BOOL success = NO; |
| 355 | NSError *error; |
| 356 | |
| 357 | PJ_ASSERT_RETURN(f && param && p_vid_strm, PJ_EINVAL); |
| 358 | PJ_ASSERT_RETURN(param->fmt.type == PJMEDIA_TYPE_VIDEO && |
| 359 | param->fmt.detail_type == PJMEDIA_FORMAT_DETAIL_VIDEO, |
| 360 | PJ_EINVAL); |
| 361 | |
| 362 | vfi = pjmedia_get_video_format_info(NULL, param->fmt.id); |
| 363 | if (!vfi) |
| 364 | return PJMEDIA_EVID_BADFORMAT; |
| 365 | |
| 366 | /* Create and Initialize stream descriptor */ |
| 367 | pool = pj_pool_create(qf->pf, "qt-dev", 4000, 4000, NULL); |
| 368 | PJ_ASSERT_RETURN(pool != NULL, PJ_ENOMEM); |
| 369 | |
| 370 | strm = PJ_POOL_ZALLOC_T(pool, struct qt_stream); |
| 371 | pj_memcpy(&strm->param, param, sizeof(*param)); |
| 372 | strm->pool = pool; |
| 373 | pj_memcpy(&strm->vid_cb, cb, sizeof(*cb)); |
| 374 | strm->user_data = user_data; |
| 375 | |
| 376 | /* Create player stream here */ |
| 377 | if (param->dir & PJMEDIA_DIR_PLAYBACK) { |
| 378 | } |
| 379 | |
| 380 | /* Create capture stream here */ |
| 381 | if (param->dir & PJMEDIA_DIR_CAPTURE) { |
| 382 | pjmedia_video_format_detail *vfd; |
| 383 | qt_fmt_info *qfi = get_qt_format_info(param->fmt.id); |
| 384 | |
| 385 | if (!qfi) { |
| 386 | status = PJMEDIA_EVID_BADFORMAT; |
| 387 | goto on_error; |
| 388 | } |
| 389 | |
| 390 | strm->cap_session = [[QTCaptureSession alloc] init]; |
| 391 | if (!strm->cap_session) { |
| 392 | status = PJ_ENOMEM; |
| 393 | goto on_error; |
| 394 | } |
| 395 | |
| 396 | /* Open video device */ |
| 397 | QTCaptureDevice *videoDevice = |
| 398 | [QTCaptureDevice deviceWithUniqueID: |
| 399 | [NSString stringWithCString: |
| 400 | qf->dev_info[param->cap_id].dev_id |
| 401 | encoding: |
| 402 | [NSString defaultCStringEncoding]]]; |
| 403 | if (!videoDevice || ![videoDevice open:&error]) { |
| 404 | status = PJMEDIA_EVID_SYSERR; |
| 405 | goto on_error; |
| 406 | } |
| 407 | |
| 408 | /* Add the video device to the session as a device input */ |
| 409 | strm->dev_input = [[QTCaptureDeviceInput alloc] |
| 410 | initWithDevice:videoDevice]; |
| 411 | success = [strm->cap_session addInput:strm->dev_input error:&error]; |
| 412 | if (!success) { |
| 413 | status = PJMEDIA_EVID_SYSERR; |
| 414 | goto on_error; |
| 415 | } |
| 416 | |
| 417 | strm->video_output = [[QTCaptureDecompressedVideoOutput alloc] init]; |
| 418 | success = [strm->cap_session addOutput:strm->video_output |
| 419 | error:&error]; |
| 420 | if (!success) { |
| 421 | status = PJMEDIA_EVID_SYSERR; |
| 422 | goto on_error; |
| 423 | } |
| 424 | |
| 425 | vfd = pjmedia_format_get_video_format_detail(&strm->param.fmt, |
| 426 | PJ_TRUE); |
| 427 | [strm->video_output setPixelBufferAttributes: |
| 428 | [NSDictionary dictionaryWithObjectsAndKeys: |
| 429 | [NSNumber numberWithInt: |
| 430 | qfi->qt_format], |
| 431 | kCVPixelBufferPixelFormatTypeKey, |
| 432 | [NSNumber numberWithInt: |
| 433 | vfd->size.w], |
| 434 | kCVPixelBufferWidthKey, |
| 435 | [NSNumber numberWithInt: |
| 436 | vfd->size.h], |
| 437 | kCVPixelBufferHeightKey, nil]]; |
| 438 | |
| 439 | pj_assert(vfd->fps.num); |
| 440 | [strm->video_output setMinimumVideoFrameInterval: |
| 441 | (1.0f * vfd->fps.denum / (double)vfd->fps.num)]; |
| 442 | |
| 443 | strm->vout_delegate = [VOutDelegate alloc]; |
| 444 | strm->vout_delegate->stream = strm; |
| 445 | [strm->video_output setDelegate:strm->vout_delegate]; |
| 446 | } |
| 447 | |
| 448 | /* Apply the remaining settings */ |
| 449 | /* |
| 450 | if (param->flags & PJMEDIA_VID_DEV_CAP_INPUT_SCALE) { |
| 451 | qt_stream_set_cap(&strm->base, |
| 452 | PJMEDIA_VID_DEV_CAP_INPUT_SCALE, |
| 453 | ¶m->fmt); |
| 454 | } |
| 455 | */ |
| 456 | /* Done */ |
| 457 | strm->base.op = &stream_op; |
| 458 | *p_vid_strm = &strm->base; |
| 459 | |
| 460 | return PJ_SUCCESS; |
| 461 | |
| 462 | on_error: |
| 463 | qt_stream_destroy((pjmedia_vid_stream *)strm); |
| 464 | |
| 465 | return status; |
| 466 | } |
| 467 | |
| 468 | /* API: Get stream info. */ |
| 469 | static pj_status_t qt_stream_get_param(pjmedia_vid_stream *s, |
| 470 | pjmedia_vid_param *pi) |
| 471 | { |
| 472 | struct qt_stream *strm = (struct qt_stream*)s; |
| 473 | |
| 474 | PJ_ASSERT_RETURN(strm && pi, PJ_EINVAL); |
| 475 | |
| 476 | pj_memcpy(pi, &strm->param, sizeof(*pi)); |
| 477 | |
| 478 | /* if (qt_stream_get_cap(s, PJMEDIA_VID_DEV_CAP_INPUT_SCALE, |
| 479 | &pi->fmt.info_size) == PJ_SUCCESS) |
| 480 | { |
| 481 | pi->flags |= PJMEDIA_VID_DEV_CAP_INPUT_SCALE; |
| 482 | } |
| 483 | */ |
| 484 | return PJ_SUCCESS; |
| 485 | } |
| 486 | |
| 487 | /* API: get capability */ |
| 488 | static pj_status_t qt_stream_get_cap(pjmedia_vid_stream *s, |
| 489 | pjmedia_vid_dev_cap cap, |
| 490 | void *pval) |
| 491 | { |
| 492 | struct qt_stream *strm = (struct qt_stream*)s; |
| 493 | |
| 494 | PJ_UNUSED_ARG(strm); |
| 495 | |
| 496 | PJ_ASSERT_RETURN(s && pval, PJ_EINVAL); |
| 497 | |
| 498 | if (cap==PJMEDIA_VID_DEV_CAP_INPUT_SCALE) |
| 499 | { |
| 500 | return PJMEDIA_EVID_INVCAP; |
| 501 | // return PJ_SUCCESS; |
| 502 | } else { |
| 503 | return PJMEDIA_EVID_INVCAP; |
| 504 | } |
| 505 | } |
| 506 | |
| 507 | /* API: set capability */ |
| 508 | static pj_status_t qt_stream_set_cap(pjmedia_vid_stream *s, |
| 509 | pjmedia_vid_dev_cap cap, |
| 510 | const void *pval) |
| 511 | { |
| 512 | struct qt_stream *strm = (struct qt_stream*)s; |
| 513 | |
| 514 | PJ_UNUSED_ARG(strm); |
| 515 | |
| 516 | PJ_ASSERT_RETURN(s && pval, PJ_EINVAL); |
| 517 | |
| 518 | if (cap==PJMEDIA_VID_DEV_CAP_INPUT_SCALE) |
| 519 | { |
| 520 | return PJ_SUCCESS; |
| 521 | } |
| 522 | |
| 523 | return PJMEDIA_EVID_INVCAP; |
| 524 | } |
| 525 | |
| 526 | /* API: Start stream. */ |
| 527 | static pj_status_t qt_stream_start(pjmedia_vid_stream *strm) |
| 528 | { |
| 529 | struct qt_stream *stream = (struct qt_stream*)strm; |
| 530 | |
| 531 | PJ_UNUSED_ARG(stream); |
| 532 | |
| 533 | PJ_LOG(4, (THIS_FILE, "Starting qt video stream")); |
| 534 | |
| 535 | if (stream->cap_session) { |
| 536 | [stream->cap_session startRunning]; |
| 537 | |
| 538 | if (![stream->cap_session isRunning]) |
| 539 | return PJ_EUNKNOWN; |
| 540 | } |
| 541 | |
| 542 | return PJ_SUCCESS; |
| 543 | } |
| 544 | |
| 545 | /* API: Stop stream. */ |
| 546 | static pj_status_t qt_stream_stop(pjmedia_vid_stream *strm) |
| 547 | { |
| 548 | struct qt_stream *stream = (struct qt_stream*)strm; |
| 549 | |
| 550 | PJ_UNUSED_ARG(stream); |
| 551 | |
| 552 | PJ_LOG(4, (THIS_FILE, "Stopping qt video stream")); |
| 553 | |
| 554 | if (stream->cap_session && [stream->cap_session isRunning]) |
| 555 | [stream->cap_session stopRunning]; |
| 556 | |
| 557 | return PJ_SUCCESS; |
| 558 | } |
| 559 | |
| 560 | |
| 561 | /* API: Destroy stream. */ |
| 562 | static pj_status_t qt_stream_destroy(pjmedia_vid_stream *strm) |
| 563 | { |
| 564 | struct qt_stream *stream = (struct qt_stream*)strm; |
| 565 | |
| 566 | PJ_ASSERT_RETURN(stream != NULL, PJ_EINVAL); |
| 567 | |
| 568 | qt_stream_stop(strm); |
| 569 | |
| 570 | if (stream->dev_input && [[stream->dev_input device] isOpen]) |
| 571 | [[stream->dev_input device] close]; |
| 572 | |
| 573 | if (stream->cap_session) { |
| 574 | [stream->cap_session release]; |
| 575 | stream->cap_session = NULL; |
| 576 | } |
| 577 | if (stream->dev_input) { |
| 578 | [stream->dev_input release]; |
| 579 | stream->dev_input = NULL; |
| 580 | } |
| 581 | if (stream->vout_delegate) { |
| 582 | [stream->vout_delegate release]; |
| 583 | stream->vout_delegate = NULL; |
| 584 | } |
| 585 | if (stream->video_output) { |
| 586 | [stream->video_output release]; |
| 587 | stream->video_output = NULL; |
| 588 | } |
| 589 | |
| 590 | pj_pool_release(stream->pool); |
| 591 | |
| 592 | return PJ_SUCCESS; |
| 593 | } |
| 594 | |
| 595 | #endif /* PJMEDIA_VIDEO_DEV_HAS_QT */ |