cinelerra/tracksedit.C

   1 #include "assets.h"
   2 #include "atrack.h"
   3 #include "automation.h"
   4 #include "aedits.h"
   5 #include "edit.h"
   6 #include "edits.h"
   7 #include "edl.h"
   8 #include "edlsession.h"
   9 #include "filexml.h"
  10 #include "intauto.h"
  11 #include "intautos.h"
  12 #include "localsession.h"
  13 #include "mainundo.h"
  14 #include "module.h"
  15 #include "mainsession.h"
  16 #include "pluginserver.h"
  17 #include "pluginset.h"
  18 #include "timebar.h"
  19 #include "trackcanvas.h"
  20 #include "tracks.h"
  21 #include "trackscroll.h"
  22 #include "transition.h"
  23 #include "transportque.h"
  24 #include "vtrack.h"
  25 #include <string.h>
  26
  27 int Tracks::clear(double start, double end, int clear_plugins)
  28 {
  29         Track *current_track;
  30
  31         for(current_track = first;
  32                 current_track;
  33                 current_track = current_track->next)
  34         {
  35                 if(current_track->record)
  36                 {
  37                         current_track->clear(start,
  38                                 end,
  39                                 1,
  40                                 1,
  41                                 clear_plugins,
  42                                 1,
  43                                 0);
  44                 }
  45         }
  46         return 0;
  47 }
  48
  49 void Tracks::clear_automation(double selectionstart, double selectionend)
  50 {
  51         Track* current_track;
  52
  53         for(current_track = first; current_track; current_track = current_track->next)
  54         {
  55                 if(current_track->record)
  56                 {
  57                         current_track->clear_automation(selectionstart,
  58                                 selectionend,
  59                                 0,
  60                                 0);
  61                 }
  62         }
  63 }
  64
  65 void Tracks::straighten_automation(double selectionstart, double selectionend)
  66 {
  67         Track* current_track;
  68
  69         for(current_track = first; current_track; current_track = current_track->next)
  70         {
  71                 if(current_track->record)
  72                 {
  73                         current_track->straighten_automation(selectionstart,
  74                                 selectionend);
  75                 }
  76         }
  77 }
  78
  79 int Tracks::clear_default_keyframe()
  80 {
  81         for(Track *current = first; current; current = NEXT)
  82         {
  83                 if(current->record)
  84                         current->clear_automation(0, 0, 0, 1);
  85         }
  86         return 0;
  87 }
  88
  89 int Tracks::clear_handle(double start,
  90         double end,
  91         double &longest_distance,
  92         int clear_labels,
  93         int clear_plugins)
  94 {
  95         Track* current_track;
  96         double distance;
  97
  98         for(current_track = first; current_track; current_track = current_track->next)
  99         {
 100                 if(current_track->record)
 101                 {
 102                         current_track->clear_handle(start,
 103                                 end,
 104                                 clear_labels,
 105                                 clear_plugins,
 106                                 distance);
 107                         if(distance > longest_distance) longest_distance = distance;
 108                 }
 109         }
 110
 111         return 0;
 112 }
 113
 114 int Tracks::copy_automation(double selectionstart,
 115         double selectionend,
 116         FileXML *file,
 117         int default_only,
 118         int autos_only)
 119 {
 120 // called by MWindow::copy_automation for copying automation alone
 121         Track* current_track;
 122
 123         file->tag.set_title("AUTO_CLIPBOARD");
 124         file->tag.set_property("LENGTH", selectionend - selectionstart);
 125         file->tag.set_property("FRAMERATE", edl->session->frame_rate);
 126         file->tag.set_property("SAMPLERATE", edl->session->sample_rate);
 127         file->append_tag();
 128         file->append_newline();
 129         file->append_newline();
 130
 131         for(current_track = first;
 132                 current_track;
 133                 current_track = current_track->next)
 134         {
 135                 if(current_track->record)
 136                 {
 137                         current_track->copy_automation(selectionstart,
 138                                 selectionend,
 139                                 file,
 140                                 default_only,
 141                                 autos_only);
 142                 }
 143         }
 144
 145         file->tag.set_title("/AUTO_CLIPBOARD");
 146         file->append_tag();
 147         file->append_newline();
 148         file->terminate_string();
 149         return 0;
 150 }
 151
 152 int Tracks::copy_default_keyframe(FileXML *file)
 153 {
 154         copy_automation(0, 0, file, 1, 0);
 155         return 0;
 156 }
 157
 158 int Tracks::delete_tracks()
 159 {
 160         int total_deleted = 0;
 161         int done = 0;
 162
 163         while(!done)
 164         {
 165                 done = 1;
 166                 for (Track* current = first;
 167                         current && done;
 168                         current = NEXT)
 169                 {
 170                         if(current->record)
 171                         {
 172                                 delete_track(current);
 173                                 total_deleted++;
 174                                 done = 0;
 175                         }
 176                 }
 177         }
 178         return total_deleted;
 179 }
 180
 181 void Tracks::move_edits(ArrayList<Edit*> *edits,
 182         Track *track,
 183         double position,
 184         int edit_labels,  // Ignored
 185         int edit_plugins,  // Ignored
 186         int behaviour)
 187 {
 188 //printf("Tracks::move_edits 1\n");
 189         for(Track *dest_track = track; dest_track; dest_track = dest_track->next)
 190         {
 191                 if(dest_track->record)
 192                 {
 193 // Need a local copy of the source edit since the original source edit may
 194 // change in the editing operation.
 195                         Edit *source_edit = 0;
 196                         Track *source_track = 0;
 197
 198
 199 // Get source track
 200                         if(dest_track->data_type == TRACK_AUDIO)
 201                         {
 202                                 int current_aedit = 0;
 203
 204                                 while(current_aedit < edits->total &&
 205                                         edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
 206                                         current_aedit++;
 207
 208                                 if(current_aedit < edits->total)
 209                                 {
 210                                         source_edit = edits->values[current_aedit];
 211                                         source_track = source_edit->track;
 212                                         edits->remove_number(current_aedit);
 213                                 }
 214                         }
 215                         else
 216                         if(dest_track->data_type == TRACK_VIDEO)
 217                         {
 218                                 int current_vedit = 0;
 219                                 while(current_vedit < edits->total &&
 220                                         edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
 221                                         current_vedit++;
 222
 223                                 if(current_vedit < edits->total)
 224                                 {
 225                                         source_edit = edits->values[current_vedit];
 226                                         source_track = source_edit->track;
 227                                         edits->remove_number(current_vedit);
 228                                 }
 229                         }
 230
 231 //printf("Tracks::move_edits 2 %s %s %d\n", source_track->title, dest_track->title, source_edit->length);
 232                         if(source_edit)
 233                         {
 234                                 int64_t position_i = source_track->to_units(position, 0);
 235 // Source edit changes
 236                                 int64_t source_length = source_edit->length;
 237                                 int64_t source_startproject = source_edit->startproject;
 238
 239                                 if (behaviour == 0)
 240                                 {
 241                                 // This works like this: CUT edit, INSERT edit at final position, keyframes also follow
 242                                 // FIXME: there should be a GUI way to tell whenever user also wants to move autos or not
 243 // Copy keyframes
 244                                         FileXML temp;
 245                                         AutoConf temp_autoconf;
 246
 247                                         temp_autoconf.set_all(1);
 248
 249                                         source_track->automation->copy(source_edit->startproject,
 250                                                 source_edit->startproject + source_edit->length,
 251                                                 &temp,
 252                                                 0,
 253                                                 0);
 254                                         temp.terminate_string();
 255                                         temp.rewind();
 256 // Insert new keyframes
 257 //printf("Tracks::move_edits 2 %d %p\n", result->startproject, result->asset);
 258                                         source_track->automation->clear(source_edit->startproject,
 259                                                 source_edit->startproject + source_edit->length,
 260                                                 &temp_autoconf,
 261                                                 1);
 262                                         int64_t position_a = position_i;
 263                                         if (dest_track == source_track)
 264                                         {
 265                                                 if (position_a > source_edit->startproject)
 266                                                         position_a -= source_length;
 267                                         }
 268
 269                                         dest_track->automation->paste_silence(position_a,
 270                                                 position_a + source_length);
 271                                         while(!temp.read_tag())
 272                                                 dest_track->automation->paste(position_a,
 273                                                         source_length,
 274                                                         1.0,
 275                                                         &temp,
 276                                                         0,
 277                                                         &temp_autoconf);
 278
 279 // Insert new edit
 280                                         Edit *dest_edit = dest_track->edits->shift(position_i,
 281                                                 source_length);
 282                                         Edit *result = dest_track->edits->insert_before(dest_edit,
 283                                                 dest_track->edits->create_edit());
 284                                         result->copy_from(source_edit);
 285                                         result->startproject = position_i;
 286                                         result->length = source_length;
 287
 288 // Clear source
 289                                         source_track->edits->clear(source_edit->startproject,
 290                                                 source_edit->startproject + source_length);
 291
 292         /*
 293 //this is outline for future thinking how it is supposed to be done trough C&P mechanisms
 294                                         temp.reset_tag();
 295                                         source_track->cut(source_edit->startproject,
 296                                                 source_edit->startproject + source_edit->length,
 297                                                 &temp,
 298                                                 NULL);
 299                                         temp.terminate_string();
 300                                         temp.rewind();
 301                                         dest_track->paste_silence(position_a,
 302                                                 position_a + source_length,
 303                                                 edit_plugins);
 304                                         while(!temp.read_tag())
 305                                                 dest_track->paste(position_a,          // MISSING PIECE OF FUNCTIONALITY
 306                                                         source_length,
 307                                                         1.0,
 308                                                         &temp,
 309                                                         0,
 310                                                         &temp_autoconf);
 311         */
 312
 313
 314                                 } else
 315                                 if (behaviour == 1)
 316                                 // ONLY edit is moved, all other edits stay where they are
 317                                 {
 318                                         // Copy edit to temp, delete the edit, insert the edit
 319                                         Edit *temp_edit = dest_track->edits->create_edit();
 320                                         temp_edit->copy_from(source_edit);
 321                                         // we call the edits directly since we do not want to move keyframes or anything else
 322                                         source_track->edits->clear(source_startproject,
 323                                                 source_startproject + source_length);
 324                                         source_track->edits->paste_silence(source_startproject,
 325                                                 source_startproject + source_length);
 326
 327                                         dest_track->edits->clear(position_i,
 328                                                 position_i + source_length);
 329                                         Edit *dest_edit = dest_track->edits->shift(position_i,  source_length);
 330                                         Edit *result = dest_track->edits->insert_before(dest_edit,
 331                                                 dest_track->edits->create_edit());
 332                                         result->copy_from(temp_edit);
 333                                         result->startproject = position_i;
 334                                         result->length = source_length;
 335                                         delete temp_edit;
 336                                 }
 337                                 source_track->optimize();
 338                                 dest_track->optimize();
 339                         }
 340                 }
 341         }
 342 }
 343
 344 void Tracks::move_effect(Plugin *plugin,
 345         PluginSet *dest_plugin_set,
 346         Track *dest_track,
 347         int64_t dest_position)
 348 {
 349         Track *source_track = plugin->track;
 350         Plugin *result = 0;
 351
 352 // Insert on an existing plugin set
 353         if(!dest_track && dest_plugin_set)
 354         {
 355                 Track *dest_track = dest_plugin_set->track;
 356
 357
 358 // Assume this operation never splits a plugin
 359 // Shift destination plugins back
 360                 dest_plugin_set->shift(dest_position, plugin->length);
 361
 362 // Insert new plugin
 363                 Plugin *current = 0;
 364                 for(current = (Plugin*)dest_plugin_set->first; current; current = (Plugin*)NEXT)
 365                         if(current->startproject >= dest_position) break;
 366
 367                 result = (Plugin*)dest_plugin_set->insert_before(current,
 368                         new Plugin(edl, dest_plugin_set, ""));
 369         }
 370         else
 371 // Create a new plugin set
 372         {
 373                 double start = dest_track->from_units(dest_position);
 374                 double length = dest_track->from_units(plugin->length);
 375
 376                 result = dest_track->insert_effect("",
 377                                 &plugin->shared_location,
 378                                 0,
 379                                 0,
 380                                 start,
 381                                 length,
 382                                 plugin->plugin_type);
 383
 384         }
 385
 386
 387         result->copy_from(plugin);
 388         result->shift(dest_position - plugin->startproject);
 389
 390 // Clear new plugin from old set
 391         plugin->plugin_set->clear(plugin->startproject, plugin->startproject + plugin->length);
 392
 393
 394         source_track->optimize();
 395 }
 396
 397
 398
 399 int Tracks::concatenate_tracks(int edit_plugins)
 400 {
 401         Track *output_track, *first_output_track, *input_track;
 402         int i, data_type = TRACK_AUDIO;
 403         double output_start;
 404         FileXML *clipboard;
 405         int result = 0;
 406         IntAuto *play_keyframe = 0;
 407
 408 // Relocate tracks
 409         for(i = 0; i < 2; i++)
 410         {
 411 // Get first output track
 412                 for(output_track = first;
 413                         output_track;
 414                         output_track = output_track->next)
 415                         if(output_track->data_type == data_type &&
 416                                 output_track->record) break;
 417
 418                 first_output_track = output_track;
 419
 420 // Get first input track
 421                 for(input_track = first;
 422                         input_track;
 423                         input_track = input_track->next)
 424                 {
 425                         if(input_track->data_type == data_type &&
 426                                 input_track->play &&
 427                                 !input_track->record) break;
 428                 }
 429
 430
 431                 if(output_track && input_track)
 432                 {
 433 // Transfer input track to end of output track one at a time
 434                         while(input_track)
 435                         {
 436                                 output_start = output_track->get_length();
 437                                 output_track->insert_track(input_track,
 438                                         output_start,
 439                                         0,
 440                                         edit_plugins);
 441
 442 // Get next source and destination
 443                                 for(input_track = input_track->next;
 444                                         input_track;
 445                                         input_track = input_track->next)
 446                                 {
 447
 448                                         if(input_track->data_type == data_type &&
 449                                                 !input_track->record &&
 450                                                 input_track->play) break;
 451                                 }
 452
 453                                 for(output_track = output_track->next;
 454                                         output_track;
 455                                         output_track = output_track->next)
 456                                 {
 457                                         if(output_track->data_type == data_type &&
 458                                                 output_track->record) break;
 459                                 }
 460
 461                                 if(!output_track)
 462                                 {
 463                                         output_track = first_output_track;
 464                                 }
 465                         }
 466                         result = 1;
 467                 }
 468
 469                 if(data_type == TRACK_AUDIO) data_type = TRACK_VIDEO;
 470         }
 471
 472         return result;
 473 }
 474
 475 int Tracks::delete_all_tracks()
 476 {
 477         while(last) delete last;
 478         return 0;
 479 }
 480
 481
 482 void Tracks::change_modules(int old_location, int new_location, int do_swap)
 483 {
 484         for(Track* current = first ; current; current = current->next)
 485         {
 486                 current->change_modules(old_location, new_location, do_swap);
 487         }
 488 }
 489
 490 void Tracks::change_plugins(SharedLocation &old_location, SharedLocation &new_location, int do_swap)
 491 {
 492         for(Track* current = first ; current; current = current->next)
 493         {
 494                 current->change_plugins(old_location, new_location, do_swap);
 495         }
 496 }
 497
 498
 499
 500 // =========================================== EDL editing
 501
 502
 503 int Tracks::copy(double start,
 504         double end,
 505         int all,
 506         FileXML *file,
 507         char *output_path)
 508 {
 509 // nothing selected
 510         if(start == end && !all) return 1;
 511
 512         Track* current;
 513
 514         for(current = first;
 515                 current;
 516                 current = NEXT)
 517         {
 518                 if(current->record || all)
 519                 {
 520                         current->copy(start, end, file,output_path);
 521                 }
 522         }
 523
 524         return 0;
 525 }
 526
 527
 528
 529 int Tracks::move_track_up(Track *track)
 530 {
 531         Track *next_track = track->previous;
 532         if(!next_track) next_track = last;
 533
 534         change_modules(number_of(track), number_of(next_track), 1);
 535
 536 // printf("Tracks::move_track_up 1 %p %p\n", track, next_track);
 537 // int count = 0;
 538 // for(Track *current = first; current && count < 5; current = NEXT, count++)
 539 //      printf("Tracks::move_track_up %p %p %p\n", current->previous, current, current->next);
 540 // printf("Tracks::move_track_up 2\n");
 541 //
 542         swap(track, next_track);
 543
 544 // count = 0;
 545 // for(Track *current = first; current && count < 5; current = NEXT, count++)
 546 //      printf("Tracks::move_track_up %p %p %p\n", current->previous, current, current->next);
 547 // printf("Tracks::move_track_up 3\n");
 548
 549         return 0;
 550 }
 551
 552 int Tracks::move_track_down(Track *track)
 553 {
 554         Track *next_track = track->next;
 555         if(!next_track) next_track = first;
 556
 557         change_modules(number_of(track), number_of(next_track), 1);
 558         swap(track, next_track);
 559         return 0;
 560 }
 561
 562
 563 int Tracks::move_tracks_up()
 564 {
 565         Track *track, *next_track;
 566         int result = 0;
 567
 568         for(track = first;
 569                 track;
 570                 track = next_track)
 571         {
 572                 next_track = track->next;
 573
 574                 if(track->record)
 575                 {
 576                         if(track->previous)
 577                         {
 578                                 change_modules(number_of(track->previous), number_of(track), 1);
 579
 580                                 swap(track->previous, track);
 581                                 result = 1;
 582                         }
 583                 }
 584         }
 585
 586         return result;
 587 }
 588
 589 int Tracks::move_tracks_down()
 590 {
 591         Track *track, *previous_track;
 592         int result = 0;
 593
 594         for(track = last;
 595                 track;
 596                 track = previous_track)
 597         {
 598                 previous_track = track->previous;
 599
 600                 if(track->record)
 601                 {
 602                         if(track->next)
 603                         {
 604                                 change_modules(number_of(track), number_of(track->next), 1);
 605
 606                                 swap(track, track->next);
 607                                 result = 1;
 608                         }
 609                 }
 610         }
 611
 612         return result;
 613 }
 614
 615
 616
 617 void Tracks::paste_audio_transition(PluginServer *server)
 618 {
 619         for(Track *current = first; current; current = NEXT)
 620         {
 621                 if(current->data_type == TRACK_AUDIO &&
 622                         current->record)
 623                 {
 624                         int64_t position = current->to_units(
 625                                 edl->local_session->get_selectionstart(), 0);
 626                         Edit *current_edit = current->edits->editof(position,
 627                                 PLAY_FORWARD,
 628                                 0);
 629                         if(current_edit)
 630                         {
 631                                 paste_transition(server, current_edit);
 632                         }
 633                 }
 634         }
 635 }
 636
 637 void Tracks::loaded_lengths_to_tracklengths(int includerecordtracks)
 638 {
 639         Track *current_track;
 640
 641         for(current_track = first;
 642             current_track;
 643             current_track = current_track->next)
 644         {
 645                 if(current_track->record || includerecordtracks)
 646                 {
 647 // Reset the loaded_length value. (the last edit should always be a silence going to infinityish)
 648                         current_track->edits->loaded_length = current_track->edits->last->startproject;
 649                 }
 650         }
 651 }
 652
 653 void Tracks::paste_automation(double selectionstart,
 654         FileXML *file,
 655         int default_only)
 656 {
 657         Track* current_atrack = 0;
 658         Track* current_vtrack = 0;
 659         int result = 0;
 660         double length;
 661         double frame_rate = edl->session->frame_rate;
 662         int64_t sample_rate = edl->session->sample_rate;
 663         char string[BCTEXTLEN];
 664         sprintf(string, "");
 665
 666 // Search for start
 667         do{
 668           result = file->read_tag();
 669         }while(!result &&
 670                 !file->tag.title_is("AUTO_CLIPBOARD"));
 671
 672         if(!result)
 673         {
 674                 length = file->tag.get_property("LENGTH", 0);
 675                 frame_rate = file->tag.get_property("FRAMERATE", frame_rate);
 676                 sample_rate = file->tag.get_property("SAMPLERATE", sample_rate);
 677
 678
 679                 do
 680                 {
 681                         result = file->read_tag();
 682
 683                         if(!result)
 684                         {
 685                                 if(file->tag.title_is("/AUTO_CLIPBOARD"))
 686                                 {
 687                                         result = 1;
 688                                 }
 689                                 else
 690                                 if(file->tag.title_is("TRACK"))
 691                                 {
 692                                         file->tag.get_property("TYPE", string);
 693
 694                                         if(!strcmp(string, "AUDIO"))
 695                                         {
 696 // Get next audio track
 697                                                 if(!current_atrack)
 698                                                         current_atrack = first;
 699                                                 else
 700                                                         current_atrack = current_atrack->next;
 701
 702                                                 while(current_atrack &&
 703                                                         (current_atrack->data_type != TRACK_AUDIO ||
 704                                                         !current_atrack->record))
 705                                                         current_atrack = current_atrack->next;
 706
 707 // Paste it
 708                                                 if(current_atrack)
 709                                                 {
 710                                                         current_atrack->paste_automation(selectionstart,
 711                                                                 length,
 712                                                                 frame_rate,
 713                                                                 sample_rate,
 714                                                                 file,
 715                                                                 default_only);
 716                                                 }
 717                                         }
 718                                         else
 719                                         {
 720 // Get next video track
 721                                                 if(!current_vtrack)
 722                                                         current_vtrack = first;
 723                                                 else
 724                                                         current_vtrack = current_vtrack->next;
 725
 726                                                 while(current_vtrack &&
 727                                                         (current_vtrack->data_type != TRACK_VIDEO ||
 728                                                         !current_vtrack->record))
 729                                                         current_vtrack = current_vtrack->next;
 730
 731 // Paste it
 732                                                 if(current_vtrack)
 733                                                 {
 734 //printf("Tracks::paste_automation 1 %s %d\n", current_vtrack->title, current_vtrack->record);
 735                                                         current_vtrack->paste_automation(selectionstart,
 736                                                                 length,
 737                                                                 frame_rate,
 738                                                                 sample_rate,
 739                                                                 file,
 740                                                                 default_only);
 741                                                 }
 742                                         }
 743                                 }
 744                         }
 745                 }while(!result);
 746         }
 747 }
 748
 749 int Tracks::paste_default_keyframe(FileXML *file)
 750 {
 751         paste_automation(0, file, 1);
 752         return 0;
 753 }
 754
 755 void Tracks::paste_transition(PluginServer *server, Edit *dest_edit)
 756 {
 757         dest_edit->insert_transition(server->title);
 758 }
 759
 760 void Tracks::paste_video_transition(PluginServer *server, int first_track)
 761 {
 762         for(Track *current = first; current; current = NEXT)
 763         {
 764                 if(current->data_type == TRACK_VIDEO &&
 765                         current->record)
 766                 {
 767                         int64_t position = current->to_units(
 768                                 edl->local_session->get_selectionstart(), 0);
 769                         Edit *current_edit = current->edits->editof(position,
 770                                 PLAY_FORWARD,
 771                                 0);
 772                         if(current_edit)
 773                         {
 774                                 paste_transition(server, current_edit);
 775                         }
 776                         if(first_track) break;
 777                 }
 778         }
 779 }
 780
 781
 782 int Tracks::paste_silence(double start, double end, int edit_plugins)
 783 {
 784         Track* current_track;
 785
 786         for(current_track = first;
 787                 current_track;
 788                 current_track = current_track->next)
 789         {
 790                 if(current_track->record)
 791                 {
 792                         current_track->paste_silence(start, end, edit_plugins);
 793                 }
 794         }
 795         return 0;
 796 }
 797
 798
 799
 800 int Tracks::select_auto(int cursor_x, int cursor_y)
 801 {
 802         int result = 0;
 803         for(Track* current = first; current && !result; current = NEXT) { result = current->select_auto(&auto_conf, cursor_x, cursor_y); }
 804         return result;
 805 }
 806
 807 int Tracks::move_auto(int cursor_x, int cursor_y, int shift_down)
 808 {
 809         int result = 0;
 810
 811         for(Track* current = first; current && !result; current = NEXT)
 812         {
 813                 result = current->move_auto(&auto_conf, cursor_x, cursor_y, shift_down);
 814         }
 815         return 0;
 816 }
 817
 818 int Tracks::modify_edithandles(double &oldposition,
 819         double &newposition,
 820         int currentend,
 821         int handle_mode,
 822         int edit_labels,
 823         int edit_plugins)
 824 {
 825         Track *current;
 826
 827         for(current = first; current; current = NEXT)
 828         {
 829                 if(current->record)
 830                 {
 831                         current->modify_edithandles(oldposition,
 832                                 newposition,
 833                                 currentend,
 834                                 handle_mode,
 835                                 edit_labels,
 836                                 edit_plugins);
 837                 }
 838         }
 839         return 0;
 840 }
 841
 842 int Tracks::modify_pluginhandles(double &oldposition,
 843         double &newposition,
 844         int currentend,
 845         int handle_mode,
 846         int edit_labels,
 847         Edits *trim_edits)
 848 {
 849         Track *current;
 850
 851         for(current = first; current; current = NEXT)
 852         {
 853                 if(current->record)
 854                 {
 855                         current->modify_pluginhandles(oldposition,
 856                                 newposition,
 857                                 currentend,
 858                                 handle_mode,
 859                                 edit_labels,
 860                                 trim_edits);
 861                 }
 862         }
 863         return 0;
 864 }
 865
 866
 867
 868 int Tracks::purge_asset(Asset *asset)
 869 {
 870         Track *current_track;
 871         int result = 0;
 872
 873         for(current_track = first; current_track; current_track = current_track->next)
 874         {
 875                 result += current_track->purge_asset(asset);
 876         }
 877         return result;
 878 }
 879
 880 int Tracks::asset_used(Asset *asset)
 881 {
 882         Track *current_track;
 883         int result = 0;
 884
 885         for(current_track = first; current_track; current_track = current_track->next)
 886         {
 887                 result += current_track->asset_used(asset);
 888         }
 889         return result;
 890 }
 891
 892 int Tracks::scale_time(float rate_scale, int ignore_record, int scale_edits, int scale_autos, int64_t start, int64_t end)
 893 {
 894         Track *current_track;
 895
 896         for(current_track = first;
 897                 current_track;
 898                 current_track = current_track->next)
 899         {
 900                 if((current_track->record || ignore_record) &&
 901                         current_track->data_type == TRACK_VIDEO)
 902                 {
 903                         current_track->scale_time(rate_scale, scale_edits, scale_autos, start, end);
 904                 }
 905         }
 906         return 0;
 907 }
 908