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 | |
| 24 | #if PJMEDIA_VIDEO_DEV_HAS_IOS && PJMEDIA_HAS_VIDEO |
| 25 | #include "Availability.h" |
| 26 | #ifdef __IPHONE_4_0 |
| 27 | |
| 28 | #import <UIKit/UIKit.h> |
| 29 | #import <AVFoundation/AVFoundation.h> |
| 30 | |
| 31 | #define THIS_FILE "ios_dev.c" |
| 32 | #define DEFAULT_CLOCK_RATE 90000 |
| 33 | #define DEFAULT_WIDTH 480 |
| 34 | #define DEFAULT_HEIGHT 360 |
| 35 | #define DEFAULT_FPS 15 |
| 36 | |
| 37 | typedef struct ios_fmt_info |
| 38 | { |
| 39 | pjmedia_format_id pjmedia_format; |
| 40 | UInt32 ios_format; |
| 41 | } ios_fmt_info; |
| 42 | |
| 43 | static ios_fmt_info ios_fmts[] = |
| 44 | { |
| 45 | {PJMEDIA_FORMAT_BGRA, kCVPixelFormatType_32BGRA} , |
| 46 | }; |
| 47 | |
| 48 | /* qt device info */ |
| 49 | struct ios_dev_info |
| 50 | { |
| 51 | pjmedia_vid_dev_info info; |
| 52 | }; |
| 53 | |
| 54 | /* qt factory */ |
| 55 | struct ios_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 ios_dev_info *dev_info; |
| 63 | }; |
| 64 | |
| 65 | @interface VOutDelegate: NSObject |
| 66 | <AVCaptureVideoDataOutputSampleBufferDelegate> |
| 67 | { |
| 68 | @public |
| 69 | struct ios_stream *stream; |
| 70 | } |
| 71 | @end |
| 72 | |
| 73 | /* Video stream. */ |
| 74 | struct ios_stream |
| 75 | { |
| 76 | pjmedia_vid_dev_stream base; /**< Base stream */ |
| 77 | pjmedia_vid_dev_param param; /**< Settings */ |
| 78 | pj_pool_t *pool; /**< Memory pool */ |
| 79 | |
| 80 | pjmedia_vid_dev_cb vid_cb; /**< Stream callback */ |
| 81 | void *user_data; /**< Application data */ |
| 82 | |
| 83 | pjmedia_rect_size size; |
| 84 | pj_uint8_t bpp; |
| 85 | unsigned bytes_per_row; |
| 86 | unsigned frame_size; |
| 87 | |
| 88 | AVCaptureSession *cap_session; |
| 89 | AVCaptureDeviceInput *dev_input; |
| 90 | AVCaptureVideoDataOutput *video_output; |
| 91 | VOutDelegate *vout_delegate; |
| 92 | |
| 93 | UIImageView *imgView; |
| 94 | void *buf; |
| 95 | dispatch_queue_t render_queue; |
| 96 | |
| 97 | pj_timestamp frame_ts; |
| 98 | unsigned ts_inc; |
| 99 | }; |
| 100 | |
| 101 | |
| 102 | /* Prototypes */ |
| 103 | static pj_status_t ios_factory_init(pjmedia_vid_dev_factory *f); |
| 104 | static pj_status_t ios_factory_destroy(pjmedia_vid_dev_factory *f); |
| 105 | static pj_status_t ios_factory_refresh(pjmedia_vid_dev_factory *f); |
| 106 | static unsigned ios_factory_get_dev_count(pjmedia_vid_dev_factory *f); |
| 107 | static pj_status_t ios_factory_get_dev_info(pjmedia_vid_dev_factory *f, |
| 108 | unsigned index, |
| 109 | pjmedia_vid_dev_info *info); |
| 110 | static pj_status_t ios_factory_default_param(pj_pool_t *pool, |
| 111 | pjmedia_vid_dev_factory *f, |
| 112 | unsigned index, |
| 113 | pjmedia_vid_dev_param *param); |
| 114 | static pj_status_t ios_factory_create_stream( |
| 115 | pjmedia_vid_dev_factory *f, |
| 116 | pjmedia_vid_dev_param *param, |
| 117 | const pjmedia_vid_dev_cb *cb, |
| 118 | void *user_data, |
| 119 | pjmedia_vid_dev_stream **p_vid_strm); |
| 120 | |
| 121 | static pj_status_t ios_stream_get_param(pjmedia_vid_dev_stream *strm, |
| 122 | pjmedia_vid_dev_param *param); |
| 123 | static pj_status_t ios_stream_get_cap(pjmedia_vid_dev_stream *strm, |
| 124 | pjmedia_vid_dev_cap cap, |
| 125 | void *value); |
| 126 | static pj_status_t ios_stream_set_cap(pjmedia_vid_dev_stream *strm, |
| 127 | pjmedia_vid_dev_cap cap, |
| 128 | const void *value); |
| 129 | static pj_status_t ios_stream_start(pjmedia_vid_dev_stream *strm); |
| 130 | static pj_status_t ios_stream_put_frame(pjmedia_vid_dev_stream *strm, |
| 131 | const pjmedia_frame *frame); |
| 132 | static pj_status_t ios_stream_stop(pjmedia_vid_dev_stream *strm); |
| 133 | static pj_status_t ios_stream_destroy(pjmedia_vid_dev_stream *strm); |
| 134 | |
| 135 | /* Operations */ |
| 136 | static pjmedia_vid_dev_factory_op factory_op = |
| 137 | { |
| 138 | &ios_factory_init, |
| 139 | &ios_factory_destroy, |
| 140 | &ios_factory_get_dev_count, |
| 141 | &ios_factory_get_dev_info, |
| 142 | &ios_factory_default_param, |
| 143 | &ios_factory_create_stream, |
| 144 | &ios_factory_refresh |
| 145 | }; |
| 146 | |
| 147 | static pjmedia_vid_dev_stream_op stream_op = |
| 148 | { |
| 149 | &ios_stream_get_param, |
| 150 | &ios_stream_get_cap, |
| 151 | &ios_stream_set_cap, |
| 152 | &ios_stream_start, |
| 153 | NULL, |
| 154 | &ios_stream_put_frame, |
| 155 | &ios_stream_stop, |
| 156 | &ios_stream_destroy |
| 157 | }; |
| 158 | |
| 159 | |
| 160 | /**************************************************************************** |
| 161 | * Factory operations |
| 162 | */ |
| 163 | /* |
| 164 | * Init ios_ video driver. |
| 165 | */ |
| 166 | pjmedia_vid_dev_factory* pjmedia_ios_factory(pj_pool_factory *pf) |
| 167 | { |
| 168 | struct ios_factory *f; |
| 169 | pj_pool_t *pool; |
| 170 | |
| 171 | pool = pj_pool_create(pf, "ios video", 512, 512, NULL); |
| 172 | f = PJ_POOL_ZALLOC_T(pool, struct ios_factory); |
| 173 | f->pf = pf; |
| 174 | f->pool = pool; |
| 175 | f->base.op = &factory_op; |
| 176 | |
| 177 | return &f->base; |
| 178 | } |
| 179 | |
| 180 | |
| 181 | /* API: init factory */ |
| 182 | static pj_status_t ios_factory_init(pjmedia_vid_dev_factory *f) |
| 183 | { |
| 184 | struct ios_factory *qf = (struct ios_factory*)f; |
| 185 | struct ios_dev_info *qdi; |
| 186 | unsigned i, l; |
| 187 | |
| 188 | /* Initialize input and output devices here */ |
| 189 | qf->dev_info = (struct ios_dev_info*) |
| 190 | pj_pool_calloc(qf->pool, 2, |
| 191 | sizeof(struct ios_dev_info)); |
| 192 | |
| 193 | qf->dev_count = 0; |
| 194 | qdi = &qf->dev_info[qf->dev_count++]; |
| 195 | pj_bzero(qdi, sizeof(*qdi)); |
| 196 | strcpy(qdi->info.name, "iOS UIView"); |
| 197 | strcpy(qdi->info.driver, "iOS"); |
| 198 | qdi->info.dir = PJMEDIA_DIR_RENDER; |
| 199 | qdi->info.has_callback = PJ_FALSE; |
| 200 | qdi->info.caps = PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW; |
| 201 | |
| 202 | if (NSClassFromString(@"AVCaptureSession")) { |
| 203 | qdi = &qf->dev_info[qf->dev_count++]; |
| 204 | pj_bzero(qdi, sizeof(*qdi)); |
| 205 | strcpy(qdi->info.name, "iOS AVCapture"); |
| 206 | strcpy(qdi->info.driver, "iOS"); |
| 207 | qdi->info.dir = PJMEDIA_DIR_CAPTURE; |
| 208 | qdi->info.has_callback = PJ_TRUE; |
| 209 | } |
| 210 | |
| 211 | for (i = 0; i < qf->dev_count; i++) { |
| 212 | qdi = &qf->dev_info[i]; |
| 213 | qdi->info.fmt_cnt = PJ_ARRAY_SIZE(ios_fmts); |
| 214 | qdi->info.caps |= PJMEDIA_VID_DEV_CAP_FORMAT; |
| 215 | |
| 216 | for (l = 0; l < PJ_ARRAY_SIZE(ios_fmts); l++) { |
| 217 | pjmedia_format *fmt = &qdi->info.fmt[l]; |
| 218 | pjmedia_format_init_video(fmt, |
| 219 | ios_fmts[l].pjmedia_format, |
| 220 | DEFAULT_WIDTH, |
| 221 | DEFAULT_HEIGHT, |
| 222 | DEFAULT_FPS, 1); |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | PJ_LOG(4, (THIS_FILE, "iOS video initialized with %d devices", |
| 227 | qf->dev_count)); |
| 228 | |
| 229 | return PJ_SUCCESS; |
| 230 | } |
| 231 | |
| 232 | /* API: destroy factory */ |
| 233 | static pj_status_t ios_factory_destroy(pjmedia_vid_dev_factory *f) |
| 234 | { |
| 235 | struct ios_factory *qf = (struct ios_factory*)f; |
| 236 | pj_pool_t *pool = qf->pool; |
| 237 | |
| 238 | qf->pool = NULL; |
| 239 | pj_pool_release(pool); |
| 240 | |
| 241 | return PJ_SUCCESS; |
| 242 | } |
| 243 | |
| 244 | /* API: refresh the list of devices */ |
| 245 | static pj_status_t ios_factory_refresh(pjmedia_vid_dev_factory *f) |
| 246 | { |
| 247 | PJ_UNUSED_ARG(f); |
| 248 | return PJ_SUCCESS; |
| 249 | } |
| 250 | |
| 251 | /* API: get number of devices */ |
| 252 | static unsigned ios_factory_get_dev_count(pjmedia_vid_dev_factory *f) |
| 253 | { |
| 254 | struct ios_factory *qf = (struct ios_factory*)f; |
| 255 | return qf->dev_count; |
| 256 | } |
| 257 | |
| 258 | /* API: get device info */ |
| 259 | static pj_status_t ios_factory_get_dev_info(pjmedia_vid_dev_factory *f, |
| 260 | unsigned index, |
| 261 | pjmedia_vid_dev_info *info) |
| 262 | { |
| 263 | struct ios_factory *qf = (struct ios_factory*)f; |
| 264 | |
| 265 | PJ_ASSERT_RETURN(index < qf->dev_count, PJMEDIA_EVID_INVDEV); |
| 266 | |
| 267 | pj_memcpy(info, &qf->dev_info[index].info, sizeof(*info)); |
| 268 | |
| 269 | return PJ_SUCCESS; |
| 270 | } |
| 271 | |
| 272 | /* API: create default device parameter */ |
| 273 | static pj_status_t ios_factory_default_param(pj_pool_t *pool, |
| 274 | pjmedia_vid_dev_factory *f, |
| 275 | unsigned index, |
| 276 | pjmedia_vid_dev_param *param) |
| 277 | { |
| 278 | struct ios_factory *qf = (struct ios_factory*)f; |
| 279 | struct ios_dev_info *di = &qf->dev_info[index]; |
| 280 | |
| 281 | PJ_ASSERT_RETURN(index < qf->dev_count, PJMEDIA_EVID_INVDEV); |
| 282 | |
| 283 | PJ_UNUSED_ARG(pool); |
| 284 | |
| 285 | pj_bzero(param, sizeof(*param)); |
| 286 | if (di->info.dir & PJMEDIA_DIR_CAPTURE) { |
| 287 | param->dir = PJMEDIA_DIR_CAPTURE; |
| 288 | param->cap_id = index; |
| 289 | param->rend_id = PJMEDIA_VID_INVALID_DEV; |
| 290 | } else if (di->info.dir & PJMEDIA_DIR_RENDER) { |
| 291 | param->dir = PJMEDIA_DIR_RENDER; |
| 292 | param->rend_id = index; |
| 293 | param->cap_id = PJMEDIA_VID_INVALID_DEV; |
| 294 | } else { |
| 295 | return PJMEDIA_EVID_INVDEV; |
| 296 | } |
| 297 | |
| 298 | param->flags = PJMEDIA_VID_DEV_CAP_FORMAT; |
| 299 | param->clock_rate = DEFAULT_CLOCK_RATE; |
| 300 | pj_memcpy(¶m->fmt, &di->info.fmt[0], sizeof(param->fmt)); |
| 301 | |
| 302 | return PJ_SUCCESS; |
| 303 | } |
| 304 | |
| 305 | @implementation VOutDelegate |
| 306 | - (void)update_image |
| 307 | { |
| 308 | NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; |
| 309 | |
| 310 | /* Create a device-dependent RGB color space */ |
| 311 | CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); |
| 312 | |
| 313 | /* Create a bitmap graphics context with the sample buffer data */ |
| 314 | CGContextRef context = |
| 315 | CGBitmapContextCreate(stream->buf, stream->size.w, stream->size.h, 8, |
| 316 | stream->bytes_per_row, colorSpace, |
| 317 | kCGBitmapByteOrder32Little | |
| 318 | kCGImageAlphaPremultipliedFirst); |
| 319 | |
| 320 | /** |
| 321 | * Create a Quartz image from the pixel data in the bitmap graphics |
| 322 | * context |
| 323 | */ |
| 324 | CGImageRef quartzImage = CGBitmapContextCreateImage(context); |
| 325 | |
| 326 | /* Free up the context and color space */ |
| 327 | CGContextRelease(context); |
| 328 | CGColorSpaceRelease(colorSpace); |
| 329 | |
| 330 | /* Create an image object from the Quartz image */ |
| 331 | UIImage *image = [UIImage imageWithCGImage:quartzImage scale:1.0 |
| 332 | orientation:UIImageOrientationRight]; |
| 333 | |
| 334 | /* Release the Quartz image */ |
| 335 | CGImageRelease(quartzImage); |
| 336 | |
| 337 | dispatch_async(dispatch_get_main_queue(), |
| 338 | ^{[stream->imgView setImage:image];}); |
| 339 | /* |
| 340 | [stream->imgView performSelectorOnMainThread:@selector(setImage:) |
| 341 | withObject:image waitUntilDone:NO]; |
| 342 | */ |
| 343 | |
| 344 | [pool release]; |
| 345 | } |
| 346 | |
| 347 | - (void)captureOutput:(AVCaptureOutput *)captureOutput |
| 348 | didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer |
| 349 | fromConnection:(AVCaptureConnection *)connection |
| 350 | { |
| 351 | pjmedia_frame frame; |
| 352 | CVImageBufferRef imageBuffer; |
| 353 | |
| 354 | if (!sampleBuffer) |
| 355 | return; |
| 356 | |
| 357 | /* Get a CMSampleBuffer's Core Video image buffer for the media data */ |
| 358 | imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer); |
| 359 | |
| 360 | /* Lock the base address of the pixel buffer */ |
| 361 | CVPixelBufferLockBaseAddress(imageBuffer, 0); |
| 362 | |
| 363 | frame.type = PJMEDIA_FRAME_TYPE_VIDEO; |
| 364 | frame.buf = CVPixelBufferGetBaseAddress(imageBuffer); |
| 365 | frame.size = stream->frame_size; |
| 366 | frame.bit_info = 0; |
| 367 | frame.timestamp.u64 = stream->frame_ts.u64; |
| 368 | |
| 369 | if (stream->vid_cb.capture_cb) |
| 370 | (*stream->vid_cb.capture_cb)(&stream->base, stream->user_data, &frame); |
| 371 | |
| 372 | stream->frame_ts.u64 += stream->ts_inc; |
| 373 | |
| 374 | /* Unlock the pixel buffer */ |
| 375 | CVPixelBufferUnlockBaseAddress(imageBuffer,0); |
| 376 | } |
| 377 | @end |
| 378 | |
| 379 | static ios_fmt_info* get_ios_format_info(pjmedia_format_id id) |
| 380 | { |
| 381 | unsigned i; |
| 382 | |
| 383 | for (i = 0; i < PJ_ARRAY_SIZE(ios_fmts); i++) { |
| 384 | if (ios_fmts[i].pjmedia_format == id) |
| 385 | return &ios_fmts[i]; |
| 386 | } |
| 387 | |
| 388 | return NULL; |
| 389 | } |
| 390 | |
| 391 | /* API: create stream */ |
| 392 | static pj_status_t ios_factory_create_stream( |
| 393 | pjmedia_vid_dev_factory *f, |
| 394 | pjmedia_vid_dev_param *param, |
| 395 | const pjmedia_vid_dev_cb *cb, |
| 396 | void *user_data, |
| 397 | pjmedia_vid_dev_stream **p_vid_strm) |
| 398 | { |
| 399 | struct ios_factory *qf = (struct ios_factory*)f; |
| 400 | pj_pool_t *pool; |
| 401 | struct ios_stream *strm; |
| 402 | const pjmedia_video_format_detail *vfd; |
| 403 | const pjmedia_video_format_info *vfi; |
| 404 | pj_status_t status = PJ_SUCCESS; |
| 405 | ios_fmt_info *ifi = get_ios_format_info(param->fmt.id); |
| 406 | NSError *error; |
| 407 | |
| 408 | PJ_ASSERT_RETURN(f && param && p_vid_strm, PJ_EINVAL); |
| 409 | PJ_ASSERT_RETURN(param->fmt.type == PJMEDIA_TYPE_VIDEO && |
| 410 | param->fmt.detail_type == PJMEDIA_FORMAT_DETAIL_VIDEO && |
| 411 | (param->dir == PJMEDIA_DIR_CAPTURE || |
| 412 | param->dir == PJMEDIA_DIR_RENDER), |
| 413 | PJ_EINVAL); |
| 414 | |
| 415 | if (!(ifi = get_ios_format_info(param->fmt.id))) |
| 416 | return PJMEDIA_EVID_BADFORMAT; |
| 417 | |
| 418 | vfi = pjmedia_get_video_format_info(NULL, param->fmt.id); |
| 419 | if (!vfi) |
| 420 | return PJMEDIA_EVID_BADFORMAT; |
| 421 | |
| 422 | /* Create and Initialize stream descriptor */ |
| 423 | pool = pj_pool_create(qf->pf, "ios-dev", 4000, 4000, NULL); |
| 424 | PJ_ASSERT_RETURN(pool != NULL, PJ_ENOMEM); |
| 425 | |
| 426 | strm = PJ_POOL_ZALLOC_T(pool, struct ios_stream); |
| 427 | pj_memcpy(&strm->param, param, sizeof(*param)); |
| 428 | strm->pool = pool; |
| 429 | pj_memcpy(&strm->vid_cb, cb, sizeof(*cb)); |
| 430 | strm->user_data = user_data; |
| 431 | |
| 432 | vfd = pjmedia_format_get_video_format_detail(&strm->param.fmt, PJ_TRUE); |
| 433 | pj_memcpy(&strm->size, &vfd->size, sizeof(vfd->size)); |
| 434 | strm->bpp = vfi->bpp; |
| 435 | strm->bytes_per_row = strm->size.w * strm->bpp / 8; |
| 436 | strm->frame_size = strm->bytes_per_row * strm->size.h; |
| 437 | strm->ts_inc = PJMEDIA_SPF2(param->clock_rate, &vfd->fps, 1); |
| 438 | |
| 439 | if (param->dir & PJMEDIA_DIR_CAPTURE) { |
| 440 | /* Create capture stream here */ |
| 441 | strm->cap_session = [[AVCaptureSession alloc] init]; |
| 442 | if (!strm->cap_session) { |
| 443 | status = PJ_ENOMEM; |
| 444 | goto on_error; |
| 445 | } |
| 446 | strm->cap_session.sessionPreset = AVCaptureSessionPresetMedium; |
| 447 | |
| 448 | /* Open video device */ |
| 449 | AVCaptureDevice *videoDevice = |
| 450 | [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo]; |
| 451 | if (!videoDevice) { |
| 452 | status = PJMEDIA_EVID_SYSERR; |
| 453 | goto on_error; |
| 454 | } |
| 455 | |
| 456 | /* Add the video device to the session as a device input */ |
| 457 | strm->dev_input = [AVCaptureDeviceInput |
| 458 | deviceInputWithDevice:videoDevice |
| 459 | error: &error]; |
| 460 | if (!strm->dev_input) { |
| 461 | status = PJMEDIA_EVID_SYSERR; |
| 462 | goto on_error; |
| 463 | } |
| 464 | [strm->cap_session addInput:strm->dev_input]; |
| 465 | |
| 466 | strm->video_output = [[[AVCaptureVideoDataOutput alloc] init] |
| 467 | autorelease]; |
| 468 | if (!strm->video_output) { |
| 469 | status = PJMEDIA_EVID_SYSERR; |
| 470 | goto on_error; |
| 471 | } |
| 472 | [strm->cap_session addOutput:strm->video_output]; |
| 473 | |
| 474 | /* Configure the video output */ |
| 475 | strm->vout_delegate = [VOutDelegate alloc]; |
| 476 | strm->vout_delegate->stream = strm; |
| 477 | dispatch_queue_t queue = dispatch_queue_create("myQueue", NULL); |
| 478 | [strm->video_output setSampleBufferDelegate:strm->vout_delegate |
| 479 | queue:queue]; |
| 480 | dispatch_release(queue); |
| 481 | |
| 482 | strm->video_output.videoSettings = |
| 483 | [NSDictionary dictionaryWithObjectsAndKeys: |
| 484 | [NSNumber numberWithInt:ifi->ios_format], |
| 485 | kCVPixelBufferPixelFormatTypeKey, |
| 486 | [NSNumber numberWithInt: vfd->size.w], |
| 487 | kCVPixelBufferWidthKey, |
| 488 | [NSNumber numberWithInt: vfd->size.h], |
| 489 | kCVPixelBufferHeightKey, nil]; |
| 490 | strm->video_output.minFrameDuration = CMTimeMake(vfd->fps.denum, |
| 491 | vfd->fps.num); |
| 492 | } else if (param->dir & PJMEDIA_DIR_RENDER) { |
| 493 | /* Create renderer stream here */ |
| 494 | /* Get the main window */ |
| 495 | UIWindow *window = [[UIApplication sharedApplication] keyWindow]; |
| 496 | |
| 497 | if (param->flags & PJMEDIA_VID_DEV_CAP_OUTPUT_WINDOW && |
| 498 | param->window.info.ios.window) |
| 499 | window = (UIWindow *)param->window.info.ios.window; |
| 500 | |
| 501 | pj_assert(window); |
| 502 | strm->imgView = [[UIImageView alloc] initWithFrame:[window bounds]]; |
| 503 | if (!strm->imgView) { |
| 504 | status = PJ_ENOMEM; |
| 505 | goto on_error; |
| 506 | } |
| 507 | [window addSubview:strm->imgView]; |
| 508 | |
| 509 | if (!strm->vout_delegate) { |
| 510 | strm->vout_delegate = [VOutDelegate alloc]; |
| 511 | strm->vout_delegate->stream = strm; |
| 512 | } |
| 513 | |
| 514 | strm->render_queue = dispatch_queue_create("com.pjsip.render_queue", |
| 515 | NULL); |
| 516 | if (!strm->render_queue) |
| 517 | goto on_error; |
| 518 | |
| 519 | strm->buf = pj_pool_alloc(pool, strm->frame_size); |
| 520 | } |
| 521 | |
| 522 | /* Apply the remaining settings */ |
| 523 | /* |
| 524 | if (param->flags & PJMEDIA_VID_DEV_CAP_INPUT_SCALE) { |
| 525 | ios_stream_set_cap(&strm->base, |
| 526 | PJMEDIA_VID_DEV_CAP_INPUT_SCALE, |
| 527 | ¶m->fmt); |
| 528 | } |
| 529 | */ |
| 530 | /* Done */ |
| 531 | strm->base.op = &stream_op; |
| 532 | *p_vid_strm = &strm->base; |
| 533 | |
| 534 | return PJ_SUCCESS; |
| 535 | |
| 536 | on_error: |
| 537 | ios_stream_destroy((pjmedia_vid_dev_stream *)strm); |
| 538 | |
| 539 | return status; |
| 540 | } |
| 541 | |
| 542 | /* API: Get stream info. */ |
| 543 | static pj_status_t ios_stream_get_param(pjmedia_vid_dev_stream *s, |
| 544 | pjmedia_vid_dev_param *pi) |
| 545 | { |
| 546 | struct ios_stream *strm = (struct ios_stream*)s; |
| 547 | |
| 548 | PJ_ASSERT_RETURN(strm && pi, PJ_EINVAL); |
| 549 | |
| 550 | pj_memcpy(pi, &strm->param, sizeof(*pi)); |
| 551 | |
| 552 | /* if (ios_stream_get_cap(s, PJMEDIA_VID_DEV_CAP_INPUT_SCALE, |
| 553 | &pi->fmt.info_size) == PJ_SUCCESS) |
| 554 | { |
| 555 | pi->flags |= PJMEDIA_VID_DEV_CAP_INPUT_SCALE; |
| 556 | } |
| 557 | */ |
| 558 | return PJ_SUCCESS; |
| 559 | } |
| 560 | |
| 561 | /* API: get capability */ |
| 562 | static pj_status_t ios_stream_get_cap(pjmedia_vid_dev_stream *s, |
| 563 | pjmedia_vid_dev_cap cap, |
| 564 | void *pval) |
| 565 | { |
| 566 | struct ios_stream *strm = (struct ios_stream*)s; |
| 567 | |
| 568 | PJ_UNUSED_ARG(strm); |
| 569 | |
| 570 | PJ_ASSERT_RETURN(s && pval, PJ_EINVAL); |
| 571 | |
| 572 | if (cap==PJMEDIA_VID_DEV_CAP_INPUT_SCALE) |
| 573 | { |
| 574 | return PJMEDIA_EVID_INVCAP; |
| 575 | // return PJ_SUCCESS; |
| 576 | } else { |
| 577 | return PJMEDIA_EVID_INVCAP; |
| 578 | } |
| 579 | } |
| 580 | |
| 581 | /* API: set capability */ |
| 582 | static pj_status_t ios_stream_set_cap(pjmedia_vid_dev_stream *s, |
| 583 | pjmedia_vid_dev_cap cap, |
| 584 | const void *pval) |
| 585 | { |
| 586 | struct ios_stream *strm = (struct ios_stream*)s; |
| 587 | |
| 588 | PJ_UNUSED_ARG(strm); |
| 589 | |
| 590 | PJ_ASSERT_RETURN(s && pval, PJ_EINVAL); |
| 591 | |
| 592 | if (cap==PJMEDIA_VID_DEV_CAP_INPUT_SCALE) |
| 593 | { |
| 594 | return PJ_SUCCESS; |
| 595 | } |
| 596 | |
| 597 | return PJMEDIA_EVID_INVCAP; |
| 598 | } |
| 599 | |
| 600 | /* API: Start stream. */ |
| 601 | static pj_status_t ios_stream_start(pjmedia_vid_dev_stream *strm) |
| 602 | { |
| 603 | struct ios_stream *stream = (struct ios_stream*)strm; |
| 604 | |
| 605 | PJ_UNUSED_ARG(stream); |
| 606 | |
| 607 | PJ_LOG(4, (THIS_FILE, "Starting ios video stream")); |
| 608 | |
| 609 | if (stream->cap_session) { |
| 610 | [stream->cap_session startRunning]; |
| 611 | |
| 612 | if (![stream->cap_session isRunning]) |
| 613 | return PJ_EUNKNOWN; |
| 614 | } |
| 615 | |
| 616 | return PJ_SUCCESS; |
| 617 | } |
| 618 | |
| 619 | |
| 620 | /* API: Put frame from stream */ |
| 621 | static pj_status_t ios_stream_put_frame(pjmedia_vid_dev_stream *strm, |
| 622 | const pjmedia_frame *frame) |
| 623 | { |
| 624 | struct ios_stream *stream = (struct ios_stream*)strm; |
| 625 | NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; |
| 626 | |
| 627 | pj_assert(stream->frame_size >= frame->size); |
| 628 | pj_memcpy(stream->buf, frame->buf, frame->size); |
| 629 | /* Perform video display in a background thread */ |
| 630 | /* |
| 631 | [stream->vout_delegate update_image]; |
| 632 | [NSThread detachNewThreadSelector:@selector(update_image) |
| 633 | toTarget:stream->vout_delegate withObject:nil]; |
| 634 | */ |
| 635 | dispatch_async(stream->render_queue, |
| 636 | ^{[stream->vout_delegate update_image];}); |
| 637 | |
| 638 | [pool release]; |
| 639 | |
| 640 | return PJ_SUCCESS; |
| 641 | } |
| 642 | |
| 643 | /* API: Stop stream. */ |
| 644 | static pj_status_t ios_stream_stop(pjmedia_vid_dev_stream *strm) |
| 645 | { |
| 646 | struct ios_stream *stream = (struct ios_stream*)strm; |
| 647 | |
| 648 | PJ_UNUSED_ARG(stream); |
| 649 | |
| 650 | PJ_LOG(4, (THIS_FILE, "Stopping ios video stream")); |
| 651 | |
| 652 | if (stream->cap_session && [stream->cap_session isRunning]) |
| 653 | [stream->cap_session stopRunning]; |
| 654 | |
| 655 | return PJ_SUCCESS; |
| 656 | } |
| 657 | |
| 658 | |
| 659 | /* API: Destroy stream. */ |
| 660 | static pj_status_t ios_stream_destroy(pjmedia_vid_dev_stream *strm) |
| 661 | { |
| 662 | struct ios_stream *stream = (struct ios_stream*)strm; |
| 663 | |
| 664 | PJ_ASSERT_RETURN(stream != NULL, PJ_EINVAL); |
| 665 | |
| 666 | ios_stream_stop(strm); |
| 667 | |
| 668 | if (stream->imgView) { |
| 669 | [stream->imgView removeFromSuperview]; |
| 670 | [stream->imgView release]; |
| 671 | stream->imgView = NULL; |
| 672 | } |
| 673 | |
| 674 | if (stream->cap_session) { |
| 675 | [stream->cap_session release]; |
| 676 | stream->cap_session = NULL; |
| 677 | } |
| 678 | /* if (stream->dev_input) { |
| 679 | [stream->dev_input release]; |
| 680 | stream->dev_input = NULL; |
| 681 | } |
| 682 | */ |
| 683 | if (stream->vout_delegate) { |
| 684 | [stream->vout_delegate release]; |
| 685 | stream->vout_delegate = NULL; |
| 686 | } |
| 687 | /* if (stream->video_output) { |
| 688 | [stream->video_output release]; |
| 689 | stream->video_output = NULL; |
| 690 | } |
| 691 | */ |
| 692 | if (stream->render_queue) { |
| 693 | dispatch_release(stream->render_queue); |
| 694 | stream->render_queue = NULL; |
| 695 | } |
| 696 | |
| 697 | pj_pool_release(stream->pool); |
| 698 | |
| 699 | return PJ_SUCCESS; |
| 700 | } |
| 701 | |
| 702 | #endif |
| 703 | #endif /* PJMEDIA_VIDEO_DEV_HAS_IOS */ |