cinelerra-5.1/cinelerra/renderengine.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2009 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "amodule.h"
  23 #include "arender.h"
  24 #include "asset.h"
  25 #include "audiodevice.h"
  26 #include "bcsignals.h"
  27 #include "condition.h"
  28 #include "edl.h"
  29 #include "edlsession.h"
  30 #include "mutex.h"
  31 #include "mwindow.h"
  32 #include "playbackengine.h"
  33 #include "preferences.h"
  34 #include "preferencesthread.h"
  35 #include "renderengine.h"
  36 #include "mainsession.h"
  37 #include "tracks.h"
  38 #include "transportque.h"
  39 #include "videodevice.h"
  40 #include "vrender.h"
  41 #include "workarounds.h"
  42
  43
  44
  45 RenderEngine::RenderEngine(PlaybackEngine *playback_engine,
  46         Preferences *preferences,
  47         Canvas *output,
  48         int is_nested)
  49  : Thread(1, 0, 0)
  50 {
  51         this->playback_engine = playback_engine;
  52         this->output = output;
  53         this->is_nested = is_nested;
  54         audio = 0;
  55         video = 0;
  56         config = new PlaybackConfig;
  57         arender = 0;
  58         vrender = 0;
  59         do_audio = 0;
  60         do_video = 0;
  61         interrupted = 0;
  62         this->preferences = new Preferences;
  63         this->command = new TransportCommand;
  64         this->preferences->copy_from(preferences);
  65         edl = 0;
  66
  67         audio_cache = 0;
  68         video_cache = 0;
  69         if(playback_engine && playback_engine->mwindow)
  70                 mwindow = playback_engine->mwindow;
  71         else
  72                 mwindow = 0;
  73         show_tc = 0;
  74
  75
  76         input_lock = new Condition(1, "RenderEngine::input_lock");
  77         start_lock = new Condition(1, "RenderEngine::start_lock");
  78         output_lock = new Condition(1, "RenderEngine::output_lock");
  79         render_active = new Condition(1,"RenderEngine::render_active");
  80         interrupt_lock = new Mutex("RenderEngine::interrupt_lock");
  81         first_frame_lock = new Condition(1, "RenderEngine::first_frame_lock");
  82 }
  83
  84 RenderEngine::~RenderEngine()
  85 {
  86         close_output();
  87         delete command;
  88         delete preferences;
  89         if(arender) delete arender;
  90         if(vrender) delete vrender;
  91         delete input_lock;
  92         delete start_lock;
  93         delete output_lock;
  94         delete interrupt_lock;
  95         delete first_frame_lock;
  96         delete config;
  97         edl->Garbage::remove_user();
  98 }
  99
 100 EDL* RenderEngine::get_edl()
 101 {
 102 //      return command->get_edl();
 103         return edl;
 104 }
 105
 106 int RenderEngine::arm_command(TransportCommand *command)
 107 {
 108         const int debug = 0;
 109 // Prevent this renderengine from accepting another command until finished.
 110 // Since the renderengine is often deleted after the input_lock command it must
 111 // be locked here as well as in the calling routine.
 112         if(debug) printf("RenderEngine::arm_command %d\n", __LINE__);
 113
 114
 115         input_lock->lock("RenderEngine::arm_command");
 116
 117         if(!edl)
 118         {
 119                 edl = new EDL;
 120                 edl->create_objects();
 121                 edl->copy_all(command->get_edl());
 122         }
 123         this->command->copy_from(command);
 124
 125 // Fix background rendering asset to use current dimensions and ignore
 126 // headers.
 127         preferences->brender_asset->frame_rate = command->get_edl()->session->frame_rate;
 128         preferences->brender_asset->width = command->get_edl()->session->output_w;
 129         preferences->brender_asset->height = command->get_edl()->session->output_h;
 130         preferences->brender_asset->use_header = 0;
 131         preferences->brender_asset->layers = 1;
 132         preferences->brender_asset->video_data = 1;
 133
 134         done = 0;
 135         interrupted = 0;
 136
 137 // Retool configuration for this node
 138         this->config->copy_from(command->get_edl()->session->playback_config);
 139         VideoOutConfig *vconfig = this->config->vconfig;
 140         AudioOutConfig *aconfig = this->config->aconfig;
 141         if(command->realtime)
 142         {
 143                 if(command->single_frame() && vconfig->driver != PLAYBACK_X11_GL)
 144                 {
 145                         vconfig->driver = PLAYBACK_X11;
 146                 }
 147         }
 148         else
 149         {
 150                 vconfig->driver = PLAYBACK_X11;
 151         }
 152
 153
 154
 155         get_duty();
 156
 157         if(do_audio)
 158         {
 159                 fragment_len = aconfig->fragment_size;
 160 // Larger of audio_module_fragment and fragment length adjusted for speed
 161 // Extra memory must be allocated for rendering slow motion.
 162                 float speed = command->get_speed();
 163                 adjusted_fragment_len = speed >= 1.0 ?
 164                         (int64_t)(aconfig->fragment_size * speed + 0.5) :
 165                         (int64_t)(aconfig->fragment_size / speed + 0.5) ;
 166                 if(adjusted_fragment_len < aconfig->fragment_size)
 167                         adjusted_fragment_len = aconfig->fragment_size;
 168         }
 169
 170 // Set lock so audio doesn't start until video has started.
 171         if(do_video)
 172         {
 173                 while(first_frame_lock->get_value() > 0)
 174                         first_frame_lock->lock("RenderEngine::arm_command");
 175         }
 176         else
 177 // Set lock so audio doesn't wait for video which is never to come.
 178         {
 179                 while(first_frame_lock->get_value() <= 0)
 180                         first_frame_lock->unlock();
 181         }
 182
 183         open_output();
 184         create_render_threads();
 185         arm_render_threads();
 186         if(debug) printf("RenderEngine::arm_command %d\n", __LINE__);
 187
 188         return 0;
 189 }
 190
 191 void RenderEngine::get_duty()
 192 {
 193         do_audio = 0;
 194         do_video = 0;
 195
 196 //printf("RenderEngine::get_duty %d\n", __LINE__);
 197         if(!command->single_frame() &&
 198                 get_edl()->tracks->playable_audio_tracks() &&
 199                 get_edl()->session->audio_channels)
 200         {
 201                 do_audio = 1;
 202         }
 203
 204 //printf("RenderEngine::get_duty %d\n", __LINE__);
 205         if(get_edl()->tracks->playable_video_tracks())
 206         {
 207 //printf("RenderEngine::get_duty %d\n", __LINE__);
 208                 do_video = 1;
 209         }
 210 }
 211
 212 void RenderEngine::create_render_threads()
 213 {
 214         if(do_video && !vrender)
 215         {
 216                 vrender = new VRender(this);
 217         }
 218
 219         if(do_audio && !arender)
 220         {
 221                 arender = new ARender(this);
 222         }
 223 }
 224
 225
 226 int RenderEngine::get_output_w()
 227 {
 228         return get_edl()->session->output_w;
 229 }
 230
 231 int RenderEngine::get_output_h()
 232 {
 233         return get_edl()->session->output_h;
 234 }
 235
 236 int RenderEngine::brender_available(int position, int direction)
 237 {
 238         if(playback_engine)
 239         {
 240                 int64_t corrected_position = position;
 241                 if(direction == PLAY_REVERSE)
 242                         corrected_position--;
 243                 return playback_engine->brender_available(corrected_position);
 244         }
 245         else
 246                 return 0;
 247 }
 248
 249
 250 CICache* RenderEngine::get_acache()
 251 {
 252         if(playback_engine)
 253                 return playback_engine->audio_cache;
 254         else
 255                 return audio_cache;
 256 }
 257
 258 CICache* RenderEngine::get_vcache()
 259 {
 260         if(playback_engine)
 261                 return playback_engine->video_cache;
 262         else
 263                 return video_cache;
 264 }
 265
 266 void RenderEngine::set_acache(CICache *cache)
 267 {
 268         this->audio_cache = cache;
 269 }
 270
 271 void RenderEngine::set_vcache(CICache *cache)
 272 {
 273         this->video_cache = cache;
 274 }
 275
 276
 277 double RenderEngine::get_tracking_position()
 278 {
 279         if(playback_engine)
 280                 return playback_engine->get_tracking_position();
 281         else
 282                 return 0;
 283 }
 284
 285 int RenderEngine::open_output()
 286 {
 287         if(command->realtime && !is_nested)
 288         {
 289 // Allocate devices
 290                 if(do_audio)
 291                 {
 292                         audio = new AudioDevice(mwindow);
 293                 }
 294
 295                 if(do_video)
 296                 {
 297                         video = new VideoDevice(mwindow);
 298                 }
 299
 300 // Initialize sharing
 301
 302
 303 // Start playback
 304                 if(do_audio && do_video)
 305                 {
 306                         video->set_adevice(audio);
 307                         audio->set_vdevice(video);
 308                 }
 309
 310
 311
 312 // Retool playback configuration
 313                 if(do_audio)
 314                 {
 315                         if(audio->open_output(config->aconfig,
 316                                 get_edl()->session->sample_rate,
 317                                 adjusted_fragment_len,
 318                                 get_edl()->session->audio_channels,
 319                                 get_edl()->session->real_time_playback))
 320                                 do_audio = 0;
 321                         else
 322                         {
 323                                 audio->set_software_positioning(
 324                                         get_edl()->session->playback_software_position);
 325                                 audio->start_playback();
 326                         }
 327                 }
 328
 329                 if(do_video)
 330                 {
 331                         video->open_output(config->vconfig,
 332                                 get_edl()->session->frame_rate,
 333                                 get_output_w(),
 334                                 get_output_h(),
 335                                 output,
 336                                 command->single_frame());
 337                         video->set_quality(80);
 338                         video->set_cpus(preferences->processors);
 339                 }
 340         }
 341
 342         return 0;
 343 }
 344
 345 void RenderEngine::reset_sync_position()
 346 {
 347         timer.update();
 348 }
 349
 350 int64_t RenderEngine::sync_position()
 351 {
 352 // Use audio device
 353 // No danger of race conditions because the output devices are closed after all
 354 // threads join.
 355         if(do_audio)
 356         {
 357                 return audio->current_position();
 358         }
 359
 360         if(do_video)
 361         {
 362                 int64_t result = timer.get_scaled_difference(
 363                         get_edl()->session->sample_rate);
 364                 return result;
 365         }
 366         return 0;
 367 }
 368
 369
 370 int RenderEngine::start_command()
 371 {
 372         if(command->realtime && !is_nested)
 373         {
 374                 interrupt_lock->lock("RenderEngine::start_command");
 375                 start_lock->lock("RenderEngine::start_command 1");
 376                 Thread::start();
 377                 start_lock->lock("RenderEngine::start_command 2");
 378                 start_lock->unlock();
 379         }
 380         return 0;
 381 }
 382
 383 void RenderEngine::arm_render_threads()
 384 {
 385         if(do_audio)
 386         {
 387                 arender->arm_command();
 388         }
 389
 390         if(do_video)
 391         {
 392                 vrender->arm_command();
 393         }
 394 }
 395
 396
 397 void RenderEngine::start_render_threads()
 398 {
 399 // Synchronization timer.  Gets reset once again after the first video frame.
 400         timer.update();
 401
 402         if(do_audio)
 403         {
 404                 arender->start_command();
 405         }
 406
 407         if(do_video)
 408         {
 409                 vrender->start_command();
 410         }
 411 }
 412
 413 void RenderEngine::update_framerate(float framerate)
 414 {
 415         playback_engine->mwindow->session->actual_frame_rate = framerate;
 416         playback_engine->mwindow->preferences_thread->update_framerate();
 417 }
 418
 419 void RenderEngine::wait_render_threads()
 420 {
 421         if(do_audio)
 422         {
 423                 arender->Thread::join();
 424         }
 425
 426         if(do_video)
 427         {
 428                 vrender->Thread::join();
 429         }
 430 }
 431
 432 void RenderEngine::interrupt_playback()
 433 {
 434         interrupt_lock->lock("RenderEngine::interrupt_playback");
 435         interrupted = 1;
 436         if(do_audio && arender)
 437         {
 438                 arender->interrupt_playback();
 439         }
 440
 441         if(do_video && vrender)
 442         {
 443                 vrender->interrupt_playback();
 444         }
 445         interrupt_lock->unlock();
 446 }
 447
 448 int RenderEngine::close_output()
 449 {
 450 // Nested engines share devices
 451         if(!is_nested)
 452         {
 453                 if(audio)
 454                 {
 455                         audio->close_all();
 456                         delete audio;
 457                         audio = 0;
 458                 }
 459
 460
 461
 462                 if(video)
 463                 {
 464                         video->close_all();
 465                         delete video;
 466                         video = 0;
 467                 }
 468         }
 469
 470         return 0;
 471 }
 472
 473 void RenderEngine::get_output_levels(double *levels, int64_t position)
 474 {
 475         if(do_audio)
 476         {
 477                 int history_entry = arender->get_history_number(arender->level_samples,
 478                         position);
 479                 for(int i = 0; i < MAXCHANNELS; i++)
 480                 {
 481                         if(arender->audio_out[i])
 482                                 levels[i] = arender->level_history[i][history_entry];
 483                 }
 484         }
 485 }
 486
 487 void RenderEngine::get_module_levels(ArrayList<double> *module_levels, int64_t position)
 488 {
 489         if(do_audio)
 490         {
 491                 for(int i = 0; i < arender->total_modules; i++)
 492                 {
 493 //printf("RenderEngine::get_module_levels %p %p\n", ((AModule*)arender->modules[i]), ((AModule*)arender->modules[i])->level_samples);
 494                         int history_entry = arender->get_history_number(((AModule*)arender->modules[i])->level_samples, position);
 495
 496                         module_levels->append(((AModule*)arender->modules[i])->level_history[history_entry]);
 497                 }
 498         }
 499 }
 500
 501
 502
 503
 504
 505 void RenderEngine::run()
 506 {
 507         render_active->lock("RenderEngine::run");
 508         start_render_threads();
 509         start_lock->unlock();
 510         interrupt_lock->unlock();
 511
 512         wait_render_threads();
 513
 514         interrupt_lock->lock("RenderEngine::run");
 515
 516
 517         if(interrupted)
 518         {
 519                 playback_engine->tracking_position = playback_engine->get_tracking_position();
 520         }
 521
 522         close_output();
 523
 524 // Fix the tracking position
 525         if(playback_engine)
 526         {
 527                 if(command->command == CURRENT_FRAME)
 528                 {
 529 //printf("RenderEngine::run 4.1 %d\n", playback_engine->tracking_position);
 530                         playback_engine->tracking_position = command->playbackstart;
 531                 }
 532                 else
 533                 {
 534 // Make sure transport doesn't issue a pause command next
 535 //printf("RenderEngine::run 4.1 %d\n", playback_engine->tracking_position);
 536                         if(!interrupted)
 537                         {
 538                                 if(do_audio)
 539                                         playback_engine->tracking_position =
 540                                                 (double)arender->current_position /
 541                                                         command->get_edl()->session->sample_rate;
 542                                 else
 543                                 if(do_video)
 544                                 {
 545                                         playback_engine->tracking_position =
 546                                                 (double)vrender->current_position /
 547                                                         command->get_edl()->session->frame_rate;
 548                                 }
 549                         }
 550
 551                         if(!interrupted) playback_engine->command->command = STOP;
 552                         playback_engine->stop_tracking();
 553
 554                 }
 555                 playback_engine->is_playing_back = 0;
 556         }
 557
 558         input_lock->unlock();
 559         interrupt_lock->unlock();
 560         render_active->unlock();
 561 }
 562
 563 void RenderEngine::wait_done()
 564 {
 565         render_active->lock("RenderEngine::wait_done");
 566         render_active->unlock();
 567 }
 568
 569