cinelerra-5.1/cinelerra/packagerenderer.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 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 "arender.h"
  23 #include "asset.h"
  24 #include "auto.h"
  25 #include "bctimer.h"
  26 #include "brender.h"
  27 #include "cache.h"
  28 #include "clip.h"
  29 #include "cwindow.h"
  30 #include "cwindowgui.h"
  31 #include "edit.h"
  32 #include "edits.h"
  33 #include "edl.h"
  34 #include "edlsession.h"
  35 #include "errorbox.h"
  36 #include "file.h"
  37 #include "filesystem.h"
  38 #include "indexfile.h"
  39 #include "language.h"
  40 #include "mwindow.h"
  41 #include "mwindowgui.h"
  42 #include "packagerenderer.h"
  43 #include "playabletracks.h"
  44 #include "playbackconfig.h"
  45 #include "pluginserver.h"
  46 #include "preferences.h"
  47 #include "render.h"
  48 #include "renderengine.h"
  49 #include "renderfarmfsserver.h"
  50 #include "samples.h"
  51 #include "sighandler.h"
  52 #include "tracks.h"
  53 #include "transportque.h"
  54 #include "vedit.h"
  55 #include "vframe.h"
  56 #include "videodevice.h"
  57 #include "vrender.h"
  58
  59
  60
  61
  62
  63
  64
  65 RenderPackage::RenderPackage()
  66 {
  67         audio_start = 0;
  68         audio_end = 0;
  69         video_start = 0;
  70         video_end = 0;
  71         audio_do = 0;
  72         video_do = 0;
  73         path[0] = 0;
  74         done = 0;
  75         use_brender = 0;
  76 }
  77
  78 RenderPackage::~RenderPackage()
  79 {
  80 }
  81
  82
  83
  84
  85
  86
  87
  88
  89 // Used by RenderFarm and in the future, Render, to do packages.
  90 PackageRenderer::PackageRenderer()
  91 {
  92         command = 0;
  93         audio_cache = 0;
  94         video_cache = 0;
  95         aconfig = 0;
  96         vconfig = 0;
  97         timer = new Timer;
  98         frames_per_second = 0;
  99 }
 100
 101 PackageRenderer::~PackageRenderer()
 102 {
 103         delete command;
 104         delete audio_cache;
 105         delete video_cache;
 106         delete vconfig;
 107         delete aconfig;
 108 }
 109
 110 // PackageRenderer::initialize happens only once for every node when doing rendering session
 111 // This is not called for each package!
 112
 113 int PackageRenderer::initialize(MWindow *mwindow,
 114                 EDL *edl,
 115                 Preferences *preferences,
 116                 Asset *default_asset)
 117 {
 118         int result = 0;
 119
 120         this->mwindow = mwindow;
 121         this->edl = edl;
 122         this->preferences = preferences;
 123         this->default_asset = default_asset;
 124
 125
 126 //printf("PackageRenderer::initialize %d\n", preferences->processors);
 127         command = new TransportCommand;
 128         command->command = NORMAL_FWD;
 129         command->get_edl()->copy_all(edl);
 130         command->change_type = CHANGE_ALL;
 131         command->set_playback_range(edl);
 132
 133         default_asset->frame_rate = command->get_edl()->session->frame_rate;
 134         default_asset->sample_rate = command->get_edl()->session->sample_rate;
 135         default_asset->aspect_ratio = (double)command->get_edl()->session->aspect_w /
 136                 command->get_edl()->session->aspect_h;
 137         result = Render::check_asset(edl, *default_asset);
 138
 139         audio_cache = new CICache(preferences);
 140         video_cache = new CICache(preferences);
 141
 142         //PlaybackConfig *config = command->get_edl()->session->playback_config;
 143         aconfig = new AudioOutConfig();
 144         vconfig = new VideoOutConfig;
 145
 146         return result;
 147 }
 148
 149 void PackageRenderer::create_output()
 150 {
 151         FileSystem fs;
 152         asset = new Asset(*default_asset);
 153
 154         if(!get_master() && preferences->renderfarm_vfs && preferences->use_renderfarm)
 155                 snprintf(asset->path, sizeof(asset->path),
 156                         RENDERFARM_FS_PREFIX "%s", package->path);
 157         else
 158                 strncpy(asset->path, package->path, sizeof(asset->path));
 159
 160         file = new File;
 161
 162         file->set_processors(preferences->processors);
 163
 164 //printf("PackageRenderer::create_output %d\n", __LINE__);
 165         result = file->open_file(preferences,
 166                                         asset,
 167                                         0,
 168                                         1);
 169 //printf("PackageRenderer::create_output %d %d\n", __LINE__, result);
 170
 171         if(result && mwindow)
 172         {
 173 // open failed
 174                 char string[BCTEXTLEN];
 175                 snprintf(string, sizeof(string), _("Couldn't open %s"), asset->path);
 176                 ErrorBox error(_(PROGRAM_NAME ": Error"),
 177                         mwindow->gui->get_abs_cursor_x(1),
 178                         mwindow->gui->get_abs_cursor_y(1));
 179                 error.create_objects(string);
 180                 error.run_window();
 181         }
 182         else
 183         if(mwindow)
 184         {
 185                 mwindow->sighandler->push_file(file);
 186                 IndexFile::delete_index(preferences, asset);
 187         }
 188 //printf("PackageRenderer::create_output %d %d\n", __LINE__, result);
 189 }
 190
 191 void PackageRenderer::create_engine()
 192 {
 193 // Fix audio buffers to 1 second
 194         audio_read_length = command->get_edl()->session->sample_rate;
 195         command->get_edl()->session->playback_config->aconfig->fragment_size = audio_read_length;
 196
 197         aconfig->fragment_size = audio_read_length;
 198
 199
 200         render_engine = new RenderEngine(0, preferences, 0, 0);
 201         render_engine->set_acache(audio_cache);
 202         render_engine->set_vcache(video_cache);
 203         render_engine->arm_command(command);
 204
 205         if(package->use_brender)
 206         {
 207                 audio_preroll = Units::to_int64((double)preferences->brender_preroll /
 208                         default_asset->frame_rate *
 209                         default_asset->sample_rate);
 210                 video_preroll = preferences->brender_preroll;
 211         }
 212         else
 213         {
 214                 audio_preroll = Units::to_int64(preferences->render_preroll *
 215                         default_asset->sample_rate);
 216                 video_preroll = Units::to_int64(preferences->render_preroll *
 217                         default_asset->frame_rate);
 218         }
 219         audio_position = package->audio_start - audio_preroll;
 220         if( audio_position < 0 )
 221         {
 222                 audio_preroll += audio_position;
 223                 audio_position = 0;
 224         }
 225         video_position = package->video_start - video_preroll;
 226         if( video_position < 0 )
 227         {
 228                 video_preroll += video_position;
 229                 video_position = 0;
 230         }
 231
 232
 233 //      PRINT_TRACE
 234
 235 // Create output buffers
 236         if(asset->audio_data)
 237         {
 238                 file->start_audio_thread(audio_read_length,
 239                         preferences->processors > 1 ? 2 : 1);
 240         }
 241
 242 //      PRINT_TRACE
 243
 244         if(asset->video_data)
 245         {
 246                 compressed_output = new VFrame;
 247 // The write length needs to correlate with the processor count because
 248 // it is passed to the file handler which usually processes frames simultaneously.
 249                 video_write_length = preferences->processors;
 250                 video_write_position = 0;
 251                 direct_frame_copying = 0;
 252
 253
 254 //printf("PackageRenderer::create_engine %d\n", __LINE__);
 255                 file->start_video_thread(video_write_length,
 256                         command->get_edl()->session->color_model,
 257                         preferences->processors > 1 ? 2 : 1,
 258                         0);
 259 //printf("PackageRenderer::create_engine %d\n", __LINE__);
 260
 261
 262                 if(mwindow)
 263                 {
 264                         video_device = new VideoDevice;
 265                         video_device->open_output(vconfig,
 266                                 command->get_edl()->session->frame_rate,
 267                                 command->get_edl()->session->output_w,
 268                                 command->get_edl()->session->output_h,
 269                                 mwindow->cwindow->gui->canvas,
 270                                 0);
 271 //                      video_device->start_playback();
 272                 }
 273         }
 274
 275
 276         playable_tracks = new PlayableTracks(render_engine->get_edl(),
 277                 video_position,
 278                 PLAY_FORWARD,
 279                 TRACK_VIDEO,
 280                 1);
 281
 282 }
 283
 284
 285
 286
 287 void PackageRenderer::do_audio()
 288 {
 289 //printf("PackageRenderer::do_audio %d\n", __LINE__);
 290 // Do audio data
 291         if(asset->audio_data)
 292         {
 293                 audio_output = file->get_audio_buffer();
 294 // Zero unused channels in output vector
 295                 for(int i = 0; i < MAX_CHANNELS; i++)
 296                 {
 297                         audio_output_ptr[i] = (i < asset->channels) ?
 298                                 audio_output[i] :
 299                                 0;
 300                 }
 301
 302
 303
 304 // Call render engine
 305
 306                 result = render_engine->arender->process_buffer(audio_output_ptr,
 307                         audio_read_length,
 308                         audio_position);
 309
 310
 311
 312 // Fix buffers for preroll
 313                 int64_t output_length = audio_read_length;
 314                 if(audio_preroll > 0)
 315                 {
 316                         if(audio_preroll >= output_length)
 317                                 output_length = 0;
 318                         else
 319                         {
 320                                 output_length -= audio_preroll;
 321                                 for(int i = 0; i < MAX_CHANNELS; i++)
 322                                 {
 323                                         if(audio_output_ptr[i])
 324                                         {
 325                                                 double *data = audio_output_ptr[i]->get_data();
 326                                                 for(int j = 0; j < output_length; j++)
 327                                                 {
 328                                                         data[j] = data[j + audio_read_length - output_length];
 329                                                 }
 330                                         }
 331                                 }
 332                         }
 333 //printf("PackageRenderer::do_audio 4\n");
 334
 335                         audio_preroll -= audio_read_length;
 336                 }
 337
 338 // Must perform writes even if 0 length so get_audio_buffer doesn't block
 339                 result |= file->write_audio_buffer(output_length);
 340         }
 341
 342         audio_position += audio_read_length;
 343 //printf("PackageRenderer::do_audio %d\n", __LINE__);
 344 }
 345
 346
 347 void PackageRenderer::do_video()
 348 {
 349         const int debug = 0;
 350 // Do video data
 351         if(asset->video_data)
 352         {
 353 // get the absolute video position from the audio position
 354                 int64_t video_end = video_position + video_read_length;
 355
 356                 if(video_end > package->video_end)
 357                         video_end = package->video_end;
 358
 359                 while(video_position < video_end && !result)
 360                 {
 361 // Try to copy the compressed frame directly from the input to output files
 362 //printf("PackageRenderer::do_video 2 video_position=%ld\n", video_position);
 363                         if(direct_frame_copy(command->get_edl(),
 364                                 video_position,
 365                                 file,
 366                                 result))
 367                         {
 368 // Direct frame copy failed.
 369 // Switch back to background compression
 370                                 if(direct_frame_copying)
 371                                 {
 372
 373                                         file->start_video_thread(video_write_length,
 374                                                 command->get_edl()->session->color_model,
 375                                                 preferences->processors > 1 ? 2 : 1,
 376                                                 0);
 377 //printf("PackageRenderer::do_video %d %d\n", __LINE__, preferences->processors);
 378                                         direct_frame_copying = 0;
 379                                 }
 380
 381 // Try to use the rendering engine to write the frame.
 382 // Get a buffer for background writing.
 383
 384                                 if(video_write_position == 0)
 385                                         video_output = file->get_video_buffer();
 386
 387                                 if(debug) printf("PackageRenderer::do_video %d %p\n", __LINE__, video_output);
 388                                 if(debug) printf("PackageRenderer::do_video %d %p\n", __LINE__, video_output[0]);
 389
 390
 391
 392
 393 // Construct layered output buffer
 394                                 video_output_ptr = video_output[0][video_write_position];
 395                                 if(debug)
 396                                 {
 397                                         printf("PackageRenderer::do_video %d %p\n", __LINE__, video_output_ptr);
 398                                         printf("PackageRenderer::do_video %d %d\n", __LINE__, result);
 399                                         video_output_ptr->dump();
 400                                 }
 401
 402                                 if(!result)
 403                                         result = render_engine->vrender->process_buffer(
 404                                                 video_output_ptr,
 405                                                 video_position,
 406                                                 0);
 407
 408
 409                                 if(debug) printf("PackageRenderer::do_video %d %d\n", __LINE__, result);
 410
 411                                 if(!result &&
 412                                         mwindow &&
 413                                         video_device->output_visible())
 414                                 {
 415 // Vector for video device
 416                                         VFrame *preview_output;
 417
 418                                         video_device->new_output_buffer(&preview_output,
 419                                                 command->get_edl()->session->color_model);
 420
 421                                         preview_output->copy_from(video_output_ptr);
 422                                         video_device->write_buffer(preview_output,
 423                                                 command->get_edl());
 424                                 }
 425
 426                                 if(debug) printf("PackageRenderer::do_video %d %d\n", __LINE__, result);
 427
 428
 429 // Don't write to file
 430                                 if(video_preroll && !result)
 431                                 {
 432                                         video_preroll--;
 433 // Keep the write position at 0 until ready to write real frames
 434                                         result = file->write_video_buffer(0);
 435                                         video_write_position = 0;
 436                                 }
 437                                 else
 438                                 if(!result)
 439                                 {
 440 // Set background rendering parameters
 441 // Allow us to skip sections of the output file by setting the frame number.
 442 // Used by background render and render farm.
 443 //printf("PackageRenderer::do_video %d %jd\n", __LINE__, video_position);
 444                                         video_output_ptr->set_number(video_position);
 445                                         video_write_position++;
 446
 447                                         if(video_write_position >= video_write_length)
 448                                         {
 449                                                 result = file->write_video_buffer(video_write_position);
 450 //printf("PackageRenderer::do_video %d %jd\n", __LINE__, video_position);
 451 // Update the brender map after writing the files.
 452                                                 if(package->use_brender)
 453                                                 {
 454 //printf("PackageRenderer::do_video 10\n");
 455                                                         for(int i = 0; i < video_write_position && !result; i++)
 456                                                         {
 457                                                                 result = set_video_map(video_position + 1 - video_write_position + i,
 458                                                                         BRender::RENDERED);
 459                                                         }
 460 //printf("PackageRenderer::do_video 11 %d\n", result);
 461                                                 }
 462                                                 video_write_position = 0;
 463                                         }
 464                                 }
 465 //printf("PackageRenderer::do_video %d %jd\n", __LINE__, video_position);
 466
 467
 468                         }
 469
 470                         video_position++;
 471                         if(!result && get_result()) result = 1;
 472                         if(!result && progress_cancelled()) result = 1;
 473                 }
 474         }
 475         else
 476         {
 477                 video_position += video_read_length;
 478         }
 479 }
 480
 481
 482 void PackageRenderer::stop_engine()
 483 {
 484         delete render_engine;
 485         delete playable_tracks;
 486 }
 487
 488
 489 void PackageRenderer::stop_output()
 490 {
 491         int error = 0;
 492         if(asset->audio_data)
 493         {
 494 // stop file I/O
 495                 file->stop_audio_thread();
 496         }
 497
 498         if(asset->video_data)
 499         {
 500                 delete compressed_output;
 501                 if(video_write_position)
 502                         file->write_video_buffer(video_write_position);
 503                 if(package->use_brender)
 504                 {
 505                         for(int i = 0; i < video_write_position && !error; i++)
 506                         {
 507                                 error = set_video_map(video_position - video_write_position + i,
 508                                         BRender::RENDERED);
 509                         }
 510                 }
 511                 video_write_position = 0;
 512                 if(!error) file->stop_video_thread();
 513                 if(mwindow)
 514                 {
 515 //                      video_device->stop_playback();
 516                         video_device->close_all();
 517                         delete video_device;
 518                 }
 519         }
 520 }
 521
 522
 523 void PackageRenderer::close_output()
 524 {
 525         if(mwindow)
 526                 mwindow->sighandler->pull_file(file);
 527         file->close_file();
 528         delete file;
 529         asset->Garbage::remove_user();
 530 }
 531
 532 // Aborts and returns 1 if an error is encountered.
 533 int PackageRenderer::render_package(RenderPackage *package)
 534 {
 535         int audio_done = 0;
 536         int video_done = 0;
 537         int samples_rendered = 0;
 538         const int debug = 0;
 539
 540
 541         result = 0;
 542         this->package = package;
 543
 544 // printf(
 545 // "PackageRenderer::render_package: audio s=%jd l=%jd video s=%jd l=%jd\n",
 546 //      package->audio_start,
 547 //      package->audio_end - package->audio_start,
 548 //      package->video_start,
 549 //      package->video_end - package->video_start);
 550
 551         if(debug) PRINT_TRACE
 552
 553         if( package->video_do ) default_asset->video_data = 1;
 554         if( package->audio_do ) default_asset->audio_data = 1;
 555         Render::check_asset(edl, *default_asset);
 556
 557 // FIXME: The design that we only get EDL once does not give us neccessary flexiblity to do things the way they should be donek
 558         default_asset->video_data = package->video_do;
 559         default_asset->audio_data = package->audio_do;
 560         Render::check_asset(edl, *default_asset);
 561
 562         create_output();
 563         if(debug) PRINT_TRACE
 564
 565         if(!asset->video_data) video_done = 1;
 566         if(!asset->audio_data) audio_done = 1;
 567
 568 // Create render engine
 569         if(!result)
 570         {
 571 if(debug) PRINT_TRACE
 572                 create_engine();
 573 if(debug) PRINT_TRACE
 574
 575
 576 // Main loop
 577                 timer->update();
 578                 total_samples_rendered = 0;
 579                 while((!audio_done || !video_done) && !result)
 580                 {
 581                         int need_audio = 0, need_video = 0;
 582
 583
 584
 585
 586 // Calculate lengths to process.  Audio fragment is constant.
 587                         if(!audio_done)
 588                         {
 589                                 if(audio_position + audio_read_length >= package->audio_end)
 590                                 {
 591                                         audio_done = 1;
 592                                         audio_read_length = package->audio_end - audio_position;
 593                                 }
 594
 595                                 samples_rendered = audio_read_length;
 596                                 need_audio = 1;
 597                         }
 598
 599 //printf("PackageRenderer::render_package 6 %d\n", samples_rendered);
 600
 601                         if(!video_done)
 602                         {
 603                                 if(audio_done)
 604                                 {
 605 //                                      video_read_length = package->video_end - video_position;
 606 // // Packetize video length so progress gets updated
 607 //                                      video_read_length = (int)MIN(asset->frame_rate, video_read_length);
 608 //                                      video_read_length = MAX(video_read_length, 30);
 609                                         video_read_length = 1;
 610                                 }
 611                                 else
 612 // Guide video with audio
 613                                 {
 614                                         video_read_length = Units::to_int64(
 615                                                 (double)(audio_position + audio_read_length) /
 616                                                 asset->sample_rate *
 617                                                 asset->frame_rate) -
 618                                                 video_position;
 619                                 }
 620
 621 // Clamp length
 622                                 if(video_position + video_read_length >= package->video_end)
 623                                 {
 624                                         video_done = 1;
 625                                         video_read_length = package->video_end - video_position;
 626                                 }
 627
 628 // Calculate samples rendered for progress bar.
 629                                 if(audio_done)
 630                                         samples_rendered = Units::round((double)video_read_length /
 631                                                 asset->frame_rate *
 632                                                 asset->sample_rate);
 633
 634                                 need_video = 1;
 635                         }
 636                         if(debug) PRINT_TRACE
 637
 638                         if(debug) printf("PackageRenderer::render_package 1 %d %jd %jd\n",
 639                                         result, audio_read_length, video_read_length);
 640                         if(need_video && !result) do_video();
 641                         if(debug) printf("PackageRenderer::render_package %d %d %d\n",
 642                                         __LINE__, result, samples_rendered);
 643                         if(need_audio && !result) do_audio();
 644
 645
 646                         if(debug) PRINT_TRACE
 647                         if(!result)
 648                         {
 649 // Calculate frames per second for the renderfarm table.
 650                                 total_samples_rendered += samples_rendered;
 651                                 if(!video_done && timer->get_difference() > 30000)
 652                                 {
 653                                         frames_per_second = (double)total_samples_rendered *
 654                                                 asset->frame_rate /
 655                                                 asset->sample_rate /
 656                                                 ((double)timer->get_difference() / 1000);
 657                                 }
 658                                 set_progress(samples_rendered);
 659                         }
 660                         if(debug) PRINT_TRACE
 661
 662
 663
 664
 665
 666                         if(!result && progress_cancelled()) result = 1;
 667                         if(debug) PRINT_TRACE
 668
 669 // printf("PackageRenderer::render_package 10 %d %d %d %d\n",
 670 // audio_read_length, video_read_length, samples_rendered, result);
 671                         if(result)
 672                                 set_result(result);
 673                         else
 674                                 result = get_result();
 675                 }
 676
 677 // Final FPS readout
 678                 frames_per_second = (double)(package->video_end - package->video_start) /
 679                         ((double)timer->get_difference() / 1000);
 680
 681
 682 //PRINT_TRACE
 683                 stop_engine();
 684 //PRINT_TRACE
 685
 686                 stop_output();
 687 //PRINT_TRACE
 688
 689
 690         }
 691
 692
 693 //PRINT_TRACE
 694
 695         close_output();
 696
 697 //PRINT_TRACE
 698
 699         set_result(result);
 700 //PRINT_TRACE
 701
 702
 703
 704         return result;
 705 }
 706
 707
 708
 709
 710
 711
 712
 713
 714 // Try to copy the compressed frame directly from the input to output files
 715 // Return 1 on failure and 0 on success
 716 int PackageRenderer::direct_frame_copy(EDL *edl,
 717         int64_t &video_position,
 718         File *file,
 719         int &error)
 720 {
 721         Track *playable_track = 0;
 722         Edit *playable_edit = 0;
 723
 724 //printf("Render::direct_frame_copy 1\n");
 725         if(direct_copy_possible(edl,
 726                 video_position,
 727                 playable_track,
 728                 playable_edit,
 729                 file))
 730         {
 731 // Switch to direct copying
 732                 if(!direct_frame_copying)
 733                 {
 734                         if(video_write_position)
 735                         {
 736                                 error |= file->write_video_buffer(video_write_position);
 737                                 video_write_position = 0;
 738                         }
 739                         file->stop_video_thread();
 740                         direct_frame_copying = 1;
 741                 }
 742 //printf("Render::direct_frame_copy 2\n");
 743
 744                 if(!package->use_brender)
 745                         error |= ((VEdit*)playable_edit)->read_frame(compressed_output,
 746                                 video_position,
 747                                 PLAY_FORWARD,
 748                                 video_cache,
 749                                 1,
 750                                 0,
 751                                 0);
 752
 753
 754                 if(!error && video_preroll > 0)
 755                 {
 756                         video_preroll--;
 757                 }
 758                 else
 759                 if(!error)
 760                 {
 761                         if(package->use_brender)
 762                         {
 763 //printf("PackageRenderer::direct_frame_copy 1\n");
 764                                 error = set_video_map(video_position, BRender::SCANNED);
 765 //printf("PackageRenderer::direct_frame_copy 10 %d\n", error);
 766                         }
 767                         else
 768                         {
 769                                 VFrame ***temp_output = new VFrame**[1];
 770                                 temp_output[0] = new VFrame*[1];
 771                                 temp_output[0][0] = compressed_output;
 772                                 error = file->write_frames(temp_output, 1);
 773                                 delete [] temp_output[0];
 774                                 delete [] temp_output;
 775                         }
 776                 }
 777                 return 0;
 778         }
 779         else
 780                 return 1;
 781 }
 782
 783 int PackageRenderer::direct_copy_possible(EDL *edl,
 784                                 int64_t current_position,
 785                                 Track* &playable_track,  // The one track which is playable
 786                                 Edit* &playable_edit, // The edit which is playing
 787                                 File *file)   // Output file
 788 {
 789         int result = 1;
 790         int total_playable_tracks = 0;
 791         Track* current_track;
 792
 793 // Number of playable tracks must equal 1
 794         for(current_track = edl->tracks->first;
 795                 current_track && result;
 796                 current_track = current_track->next)
 797         {
 798                 if(current_track->data_type == TRACK_VIDEO)
 799                 {
 800                         if(playable_tracks->is_playable(current_track,
 801                                 current_position,
 802                                 PLAY_FORWARD,
 803                                 1))
 804                         {
 805                                 playable_track = current_track;
 806                                 total_playable_tracks++;
 807                         }
 808                 }
 809         }
 810
 811 //printf("Render::direct_copy_possible 1 %d\n", result);
 812         if(total_playable_tracks != 1) result = 0;
 813 //printf("Render::direct_copy_possible 2 %d\n", result);
 814
 815 // Edit must have a source file
 816 // TODO: descend into nested EDL's
 817         if(result)
 818         {
 819 //printf("Render::direct_copy_possible 3 %d\n", result);
 820                 playable_edit = playable_track->edits->get_playable_edit(current_position, 1);
 821 //printf("Render::direct_copy_possible 4 %d %p\n", result, playable_edit);
 822                 if(!playable_edit)
 823                         result = 0;
 824         }
 825
 826 // Source file must be able to copy to destination file.
 827 // Source file must be same size as project output.
 828         if(result)
 829         {
 830                 if(!file->can_copy_from(playable_edit->asset,
 831                         current_position + playable_track->nudge,
 832                         edl->session->output_w,
 833                         edl->session->output_h))
 834                         result = 0;
 835         }
 836 //printf("Render::direct_copy_possible 6 %d\n", result);
 837
 838 // Test conditions mutual between vrender.C and this.
 839         if(result &&
 840                 !playable_track->direct_copy_possible(current_position, PLAY_FORWARD, 1))
 841                 result = 0;
 842 //printf("Render::direct_copy_possible 7 %d\n", result);
 843
 844         return result;
 845 }
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855 int PackageRenderer::get_master()
 856 {
 857         return 0;
 858 }
 859
 860 // Get result status from server
 861 int PackageRenderer::get_result()
 862 {
 863         return 0;
 864 }
 865
 866 void PackageRenderer::set_result(int value)
 867 {
 868 }
 869
 870 void PackageRenderer::set_progress(int64_t value)
 871 {
 872 }
 873
 874 int PackageRenderer::set_video_map(int64_t position, int value)
 875 {
 876         return 0;
 877 }
 878
 879 int PackageRenderer::progress_cancelled()
 880 {
 881         return 0;
 882 }
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892