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         file->set_processors(preferences->processors);
 162         result = file->open_file(preferences, asset, 0, 1);
 163
 164         if(result && mwindow)
 165         {
 166 // open failed
 167                 char string[BCTEXTLEN];
 168                 snprintf(string, sizeof(string), _("Couldn't open %s"), asset->path);
 169                 ErrorBox error(_(PROGRAM_NAME ": Error"),
 170                         mwindow->gui->get_abs_cursor_x(1),
 171                         mwindow->gui->get_abs_cursor_y(1));
 172                 error.create_objects(string);
 173                 error.run_window();
 174         }
 175         else
 176         if(mwindow)
 177         {
 178                 mwindow->sighandler->push_file(file);
 179                 IndexFile::delete_index(preferences, asset);
 180         }
 181 //printf("PackageRenderer::create_output %d %d\n", __LINE__, result);
 182 }
 183
 184 void PackageRenderer::create_engine()
 185 {
 186 // Fix audio buffers to 1 second
 187         audio_read_length = command->get_edl()->session->sample_rate;
 188         command->get_edl()->session->playback_config->aconfig->fragment_size = audio_read_length;
 189
 190         aconfig->fragment_size = audio_read_length;
 191
 192
 193         render_engine = new RenderEngine(0, preferences, 0, 0);
 194         render_engine->set_acache(audio_cache);
 195         render_engine->set_vcache(video_cache);
 196         render_engine->arm_command(command);
 197
 198         if(package->use_brender)
 199         {
 200                 audio_preroll = Units::to_int64((double)preferences->brender_preroll /
 201                         default_asset->frame_rate *
 202                         default_asset->sample_rate);
 203                 video_preroll = preferences->brender_preroll;
 204         }
 205         else
 206         {
 207                 audio_preroll = Units::to_int64(preferences->render_preroll *
 208                         default_asset->sample_rate);
 209                 video_preroll = Units::to_int64(preferences->render_preroll *
 210                         default_asset->frame_rate);
 211         }
 212         audio_position = package->audio_start - audio_preroll;
 213         if( audio_position < 0 )
 214         {
 215                 audio_preroll += audio_position;
 216                 audio_position = 0;
 217         }
 218         video_position = package->video_start - video_preroll;
 219         if( video_position < 0 )
 220         {
 221                 video_preroll += video_position;
 222                 video_position = 0;
 223         }
 224
 225
 226 //      PRINT_TRACE
 227
 228 // Create output buffers
 229         if(asset->audio_data)
 230         {
 231                 file->start_audio_thread(audio_read_length,
 232                         preferences->processors > 1 ? 2 : 1);
 233         }
 234
 235 //      PRINT_TRACE
 236
 237         if(asset->video_data)
 238         {
 239                 compressed_output = new VFrame;
 240 // The write length needs to correlate with the processor count because
 241 // it is passed to the file handler which usually processes frames simultaneously.
 242                 video_write_length = preferences->processors;
 243                 video_write_position = 0;
 244                 direct_frame_copying = 0;
 245
 246
 247 //printf("PackageRenderer::create_engine %d video_write_length=%d\n", __LINE__, video_write_length);
 248 // starting frames are corrupted if video_write_length > 2.  Work around it, for now.
 249                 if(video_write_length > 2)
 250                 {
 251                         video_write_length = 2;
 252                 }
 253                 file->start_video_thread(video_write_length,
 254                         command->get_edl()->session->color_model,
 255                         preferences->processors > 1 ? 2 : 1,
 256                         0);
 257 //printf("PackageRenderer::create_engine %d\n", __LINE__);
 258
 259
 260                 if(mwindow)
 261                 {
 262                         video_device = new VideoDevice;
 263                         video_device->open_output(vconfig,
 264                                 command->get_edl()->session->frame_rate,
 265                                 command->get_edl()->session->output_w,
 266                                 command->get_edl()->session->output_h,
 267                                 mwindow->cwindow->gui->canvas,
 268                                 0);
 269 //                      video_device->start_playback();
 270                 }
 271         }
 272
 273
 274         playable_tracks = new PlayableTracks(render_engine->get_edl(),
 275                 video_position,
 276                 PLAY_FORWARD,
 277                 TRACK_VIDEO,
 278                 1);
 279
 280 }
 281
 282
 283
 284
 285 void PackageRenderer::do_audio()
 286 {
 287 //printf("PackageRenderer::do_audio %d\n", __LINE__);
 288 // Do audio data
 289         if(asset->audio_data)
 290         {
 291                 audio_output = file->get_audio_buffer();
 292 // Zero unused channels in output vector
 293                 for(int i = 0; i < MAX_CHANNELS; i++)
 294                 {
 295                         audio_output_ptr[i] = (i < asset->channels) ?
 296                                 audio_output[i] :
 297                                 0;
 298                 }
 299
 300
 301
 302 // Call render engine
 303
 304                 result = render_engine->arender->process_buffer(audio_output_ptr,
 305                         audio_read_length,
 306                         audio_position);
 307
 308
 309
 310 // Fix buffers for preroll
 311                 int64_t output_length = audio_read_length;
 312                 if(audio_preroll > 0)
 313                 {
 314                         if(audio_preroll >= output_length)
 315                                 output_length = 0;
 316                         else
 317                         {
 318                                 output_length -= audio_preroll;
 319                                 for(int i = 0; i < MAX_CHANNELS; i++)
 320                                 {
 321                                         if(audio_output_ptr[i])
 322                                         {
 323                                                 double *data = audio_output_ptr[i]->get_data();
 324                                                 for(int j = 0; j < output_length; j++)
 325                                                 {
 326                                                         data[j] = data[j + audio_read_length - output_length];
 327                                                 }
 328                                         }
 329                                 }
 330                         }
 331 //printf("PackageRenderer::do_audio 4\n");
 332
 333                         audio_preroll -= audio_read_length;
 334                 }
 335
 336 // Must perform writes even if 0 length so get_audio_buffer doesn't block
 337                 result |= file->write_audio_buffer(output_length);
 338         }
 339
 340         audio_position += audio_read_length;
 341 //printf("PackageRenderer::do_audio %d\n", __LINE__);
 342 }
 343
 344
 345 void PackageRenderer::do_video()
 346 {
 347         const int debug = 0;
 348 // Do video data
 349         if(asset->video_data)
 350         {
 351 // get the absolute video position from the audio position
 352                 int64_t video_end = video_position + video_read_length;
 353
 354                 if(video_end > package->video_end)
 355                         video_end = package->video_end;
 356
 357                 while(video_position < video_end && !result)
 358                 {
 359 // Try to copy the compressed frame directly from the input to output files
 360 //printf("PackageRenderer::do_video 2 video_position=%ld\n", video_position);
 361                         if(direct_frame_copy(command->get_edl(),
 362                                 video_position,
 363                                 file,
 364                                 result))
 365                         {
 366 // Direct frame copy failed.
 367 // Switch back to background compression
 368                                 if(direct_frame_copying)
 369                                 {
 370
 371                                         file->start_video_thread(video_write_length,
 372                                                 command->get_edl()->session->color_model,
 373                                                 preferences->processors > 1 ? 2 : 1,
 374                                                 0);
 375 //printf("PackageRenderer::do_video %d %d\n", __LINE__, preferences->processors);
 376                                         direct_frame_copying = 0;
 377                                 }
 378
 379 // Try to use the rendering engine to write the frame.
 380 // Get a buffer for background writing.
 381
 382                                 if(video_write_position == 0)
 383                                         video_output = file->get_video_buffer();
 384
 385                                 if(debug) printf("PackageRenderer::do_video %d %p\n", __LINE__, video_output);
 386                                 if(debug) printf("PackageRenderer::do_video %d %p\n", __LINE__, video_output[0]);
 387
 388
 389
 390
 391 // Construct layered output buffer
 392                                 video_output_ptr = video_output[0][video_write_position];
 393                                 if(debug)
 394                                 {
 395                                         printf("PackageRenderer::do_video %d %p\n", __LINE__, video_output_ptr);
 396                                         printf("PackageRenderer::do_video %d %d\n", __LINE__, result);
 397                                         video_output_ptr->dump();
 398                                 }
 399
 400                                 if(!result)
 401                                         result = render_engine->vrender->process_buffer(
 402                                                 video_output_ptr,
 403                                                 video_position,
 404                                                 0);
 405
 406
 407                                 if(debug) printf("PackageRenderer::do_video %d %d\n", __LINE__, result);
 408
 409                                 if(!result &&
 410                                         mwindow &&
 411                                         video_device->output_visible())
 412                                 {
 413 // Vector for video device
 414                                         VFrame *preview_output;
 415
 416                                         video_device->new_output_buffer(&preview_output,
 417                                                 command->get_edl()->session->color_model,
 418                                                 command->get_edl());
 419
 420                                         preview_output->copy_from(video_output_ptr);
 421                                         video_device->write_buffer(preview_output,
 422                                                 command->get_edl());
 423                                 }
 424
 425                                 if(debug) printf("PackageRenderer::do_video %d %d\n", __LINE__, result);
 426
 427
 428 // Don't write to file
 429                                 if(video_preroll && !result)
 430                                 {
 431                                         video_preroll--;
 432 // Keep the write position at 0 until ready to write real frames
 433                                         result = file->write_video_buffer(0);
 434                                         video_write_position = 0;
 435                                 }
 436                                 else
 437                                 if(!result)
 438                                 {
 439 // Set background rendering parameters
 440 // Allow us to skip sections of the output file by setting the frame number.
 441 // Used by background render and render farm.
 442 //printf("PackageRenderer::do_video %d %jd\n", __LINE__, video_position);
 443                                         video_output_ptr->set_number(video_position);
 444                                         video_write_position++;
 445
 446                                         if(video_write_position >= video_write_length)
 447                                         {
 448                                                 result = file->write_video_buffer(video_write_position);
 449 //printf("PackageRenderer::do_video %d %jd\n", __LINE__, video_position);
 450 // Update the brender map after writing the files.
 451                                                 if(package->use_brender)
 452                                                 {
 453 //printf("PackageRenderer::do_video 10\n");
 454                                                         for(int i = 0; i < video_write_position && !result; i++)
 455                                                         {
 456                                                                 result = set_video_map(video_position + 1 - video_write_position + i,
 457                                                                         BRender::RENDERED);
 458                                                         }
 459 //printf("PackageRenderer::do_video 11 %d\n", result);
 460                                                 }
 461                                                 video_write_position = 0;
 462                                         }
 463                                 }
 464 //printf("PackageRenderer::do_video %d %jd\n", __LINE__, video_position);
 465
 466
 467                         }
 468
 469                         video_position++;
 470                         if(!result && get_result()) result = 1;
 471                         if(!result && progress_cancelled()) result = 1;
 472                 }
 473         }
 474         else
 475         {
 476                 video_position += video_read_length;
 477         }
 478 }
 479
 480
 481 void PackageRenderer::stop_engine()
 482 {
 483         delete render_engine;
 484         delete playable_tracks;
 485 }
 486
 487
 488 void PackageRenderer::stop_output()
 489 {
 490         int error = 0;
 491         if(asset->audio_data)
 492         {
 493 // stop file I/O
 494                 file->stop_audio_thread();
 495         }
 496
 497         if(asset->video_data)
 498         {
 499                 delete compressed_output;
 500                 if(video_write_position)
 501                         file->write_video_buffer(video_write_position);
 502                 if(package->use_brender)
 503                 {
 504                         for(int i = 0; i < video_write_position && !error; i++)
 505                         {
 506                                 error = set_video_map(video_position - video_write_position + i,
 507                                         BRender::RENDERED);
 508                         }
 509                 }
 510                 video_write_position = 0;
 511                 if(!error) file->stop_video_thread();
 512                 if(mwindow)
 513                 {
 514 //                      video_device->stop_playback();
 515                         video_device->close_all();
 516                         delete video_device;
 517                 }
 518         }
 519 }
 520
 521
 522 void PackageRenderer::close_output()
 523 {
 524         if(mwindow)
 525                 mwindow->sighandler->pull_file(file);
 526         file->close_file();
 527         delete file;
 528         asset->Garbage::remove_user();
 529 }
 530
 531 // Aborts and returns 1 if an error is encountered.
 532 int PackageRenderer::render_package(RenderPackage *package)
 533 {
 534         int audio_done = 0;
 535         int video_done = 0;
 536         int samples_rendered = 0;
 537         const int debug = 0;
 538
 539
 540         result = 0;
 541         this->package = package;
 542
 543 // printf(
 544 // "PackageRenderer::render_package: audio s=%jd l=%jd video s=%jd l=%jd\n",
 545 //      package->audio_start,
 546 //      package->audio_end - package->audio_start,
 547 //      package->video_start,
 548 //      package->video_end - package->video_start);
 549
 550         if(debug) PRINT_TRACE
 551
 552         if( package->video_do ) default_asset->video_data = 1;
 553         if( package->audio_do ) default_asset->audio_data = 1;
 554         Render::check_asset(edl, *default_asset);
 555
 556 // FIXME: The design that we only get EDL once does not give us neccessary flexiblity to do things the way they should be donek
 557         default_asset->video_data = package->video_do;
 558         default_asset->audio_data = package->audio_do;
 559         Render::check_asset(edl, *default_asset);
 560
 561         create_output();
 562         if(debug) PRINT_TRACE
 563
 564         if(!asset->video_data) video_done = 1;
 565         if(!asset->audio_data) audio_done = 1;
 566
 567 // Create render engine
 568         if(!result)
 569         {
 570 if(debug) PRINT_TRACE
 571                 create_engine();
 572 if(debug) PRINT_TRACE
 573
 574
 575 // Main loop
 576                 timer->update();
 577                 total_samples_rendered = 0;
 578                 while((!audio_done || !video_done) && !result)
 579                 {
 580                         int need_audio = 0, need_video = 0;
 581
 582
 583
 584
 585 // Calculate lengths to process.  Audio fragment is constant.
 586                         if(!audio_done)
 587                         {
 588                                 if(audio_position + audio_read_length >= package->audio_end)
 589                                 {
 590                                         audio_done = 1;
 591                                         audio_read_length = package->audio_end - audio_position;
 592                                 }
 593
 594                                 samples_rendered = audio_read_length;
 595                                 need_audio = 1;
 596                         }
 597
 598 //printf("PackageRenderer::render_package 6 %d\n", samples_rendered);
 599
 600                         if(!video_done)
 601                         {
 602                                 if(audio_done)
 603                                 {
 604 //                                      video_read_length = package->video_end - video_position;
 605 // // Packetize video length so progress gets updated
 606 //                                      video_read_length = (int)MIN(asset->frame_rate, video_read_length);
 607 //                                      video_read_length = MAX(video_read_length, 30);
 608                                         video_read_length = 1;
 609                                 }
 610                                 else
 611 // Guide video with audio
 612                                 {
 613                                         video_read_length = Units::to_int64(
 614                                                 (double)(audio_position + audio_read_length) /
 615                                                 asset->sample_rate *
 616                                                 asset->frame_rate) -
 617                                                 video_position;
 618                                 }
 619
 620 // Clamp length
 621                                 if(video_position + video_read_length >= package->video_end)
 622                                 {
 623                                         video_done = 1;
 624                                         video_read_length = package->video_end - video_position;
 625                                 }
 626
 627 // Calculate samples rendered for progress bar.
 628                                 if(audio_done)
 629                                         samples_rendered = Units::round((double)video_read_length /
 630                                                 asset->frame_rate *
 631                                                 asset->sample_rate);
 632
 633                                 need_video = 1;
 634                         }
 635                         if(debug) PRINT_TRACE
 636
 637                         if(debug) printf("PackageRenderer::render_package 1 %d %jd %jd\n",
 638                                         result, audio_read_length, video_read_length);
 639                         if(need_video && !result) do_video();
 640                         if(debug) printf("PackageRenderer::render_package %d %d %d\n",
 641                                         __LINE__, result, samples_rendered);
 642                         if(need_audio && !result) do_audio();
 643
 644
 645                         if(debug) PRINT_TRACE
 646                         if(!result)
 647                         {
 648 // Calculate frames per second for the renderfarm table.
 649                                 total_samples_rendered += samples_rendered;
 650                                 if(!video_done && timer->get_difference() > 30000)
 651                                 {
 652                                         frames_per_second = (double)total_samples_rendered *
 653                                                 asset->frame_rate /
 654                                                 asset->sample_rate /
 655                                                 ((double)timer->get_difference() / 1000);
 656                                 }
 657                                 set_progress(samples_rendered);
 658                         }
 659                         if(debug) PRINT_TRACE
 660
 661
 662
 663
 664
 665                         if(!result && progress_cancelled()) result = 1;
 666                         if(debug) PRINT_TRACE
 667
 668 // printf("PackageRenderer::render_package 10 %d %d %d %d\n",
 669 // audio_read_length, video_read_length, samples_rendered, result);
 670                         if(result)
 671                                 set_result(result);
 672                         else
 673                                 result = get_result();
 674                 }
 675
 676 // Final FPS readout
 677                 frames_per_second = (double)(package->video_end - package->video_start) /
 678                         ((double)timer->get_difference() / 1000);
 679
 680
 681 //PRINT_TRACE
 682                 stop_engine();
 683 //PRINT_TRACE
 684
 685                 stop_output();
 686 //PRINT_TRACE
 687
 688
 689         }
 690
 691
 692 //PRINT_TRACE
 693
 694         close_output();
 695
 696 //PRINT_TRACE
 697
 698         set_result(result);
 699 //PRINT_TRACE
 700
 701
 702
 703         return result;
 704 }
 705
 706
 707
 708
 709
 710
 711
 712
 713 // Try to copy the compressed frame directly from the input to output files
 714 // Return 1 on failure and 0 on success
 715 int PackageRenderer::direct_frame_copy(EDL *edl,
 716         int64_t &video_position,
 717         File *file,
 718         int &error)
 719 {
 720         Track *playable_track = 0;
 721         Edit *playable_edit = 0;
 722
 723 //printf("Render::direct_frame_copy 1\n");
 724         if(direct_copy_possible(edl,
 725                 video_position,
 726                 playable_track,
 727                 playable_edit,
 728                 file))
 729         {
 730 // Switch to direct copying
 731                 if(!direct_frame_copying)
 732                 {
 733                         if(video_write_position)
 734                         {
 735                                 error |= file->write_video_buffer(video_write_position);
 736                                 video_write_position = 0;
 737                         }
 738                         file->stop_video_thread();
 739                         direct_frame_copying = 1;
 740                 }
 741 //printf("Render::direct_frame_copy 2\n");
 742
 743                 if(!package->use_brender)
 744                 {
 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 //printf("Render::direct_frame_copy %d %d\n", __LINE__, compressed_output->get_compressed_size());
 753                 }
 754
 755
 756                 if(!error && video_preroll > 0)
 757                 {
 758                         video_preroll--;
 759                 }
 760                 else
 761                 if(!error)
 762                 {
 763                         if(package->use_brender)
 764                         {
 765 //printf("PackageRenderer::direct_frame_copy 1\n");
 766                                 error = set_video_map(video_position, BRender::SCANNED);
 767 //printf("PackageRenderer::direct_frame_copy 10 %d\n", error);
 768                         }
 769                         else
 770                         {
 771                                 VFrame ***temp_output = new VFrame**[1];
 772                                 temp_output[0] = new VFrame*[1];
 773                                 temp_output[0][0] = compressed_output;
 774                                 error = file->write_frames(temp_output, 1);
 775                                 delete [] temp_output[0];
 776                                 delete [] temp_output;
 777                         }
 778                 }
 779                 return 0;
 780         }
 781         else
 782                 return 1;
 783 }
 784
 785 int PackageRenderer::direct_copy_possible(EDL *edl,
 786                                 int64_t current_position,
 787                                 Track* &playable_track,  // The one track which is playable
 788                                 Edit* &playable_edit, // The edit which is playing
 789                                 File *file)   // Output file
 790 {
 791         int result = 1;
 792         int total_playable_tracks = 0;
 793         Track* current_track;
 794
 795 // Number of playable tracks must equal 1
 796         for(current_track = edl->tracks->first;
 797                 current_track && result;
 798                 current_track = current_track->next)
 799         {
 800                 if(current_track->data_type == TRACK_VIDEO)
 801                 {
 802                         if(playable_tracks->is_playable(current_track,
 803                                 current_position,
 804                                 PLAY_FORWARD,
 805                                 1))
 806                         {
 807                                 playable_track = current_track;
 808                                 total_playable_tracks++;
 809                         }
 810                 }
 811         }
 812
 813 //printf("Render::direct_copy_possible 1 %d\n", result);
 814         if(total_playable_tracks != 1) result = 0;
 815 //printf("Render::direct_copy_possible 2 %d\n", result);
 816
 817 // Edit must have a source file
 818 // TODO: descend into nested EDL's
 819         if(result)
 820         {
 821 //printf("Render::direct_copy_possible 3 %d\n", result);
 822                 playable_edit = playable_track->edits->get_playable_edit(current_position, 1);
 823 //printf("Render::direct_copy_possible 4 %d %p\n", result, playable_edit);
 824                 if(!playable_edit)
 825                         result = 0;
 826         }
 827
 828 // Source file must be able to copy to destination file.
 829 // Source file must be same size as project output.
 830         if(result)
 831         {
 832                 if(!file->can_copy_from(playable_edit->asset,
 833                         current_position + playable_track->nudge,
 834                         edl->session->output_w,
 835                         edl->session->output_h))
 836                         result = 0;
 837         }
 838 //printf("Render::direct_copy_possible 6 %d\n", result);
 839
 840 // Test conditions mutual between vrender.C and this.
 841         if(result &&
 842                 !playable_track->direct_copy_possible(current_position, PLAY_FORWARD, 1))
 843                 result = 0;
 844 //printf("Render::direct_copy_possible 7 %d\n", result);
 845
 846         return result;
 847 }
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857 int PackageRenderer::get_master()
 858 {
 859         return 0;
 860 }
 861
 862 // Get result status from server
 863 int PackageRenderer::get_result()
 864 {
 865         return 0;
 866 }
 867
 868 void PackageRenderer::set_result(int value)
 869 {
 870 }
 871
 872 void PackageRenderer::set_progress(int64_t value)
 873 {
 874 }
 875
 876 int PackageRenderer::set_video_map(int64_t position, int value)
 877 {
 878         return 0;
 879 }
 880
 881 int PackageRenderer::progress_cancelled()
 882 {
 883         return 0;
 884 }
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894