cinelerra-5.1/cinelerra/tracksedit.C

   1 /*
   2  * CINELERRA
   3  * Copyright (C) 2010 Adam Williams <broadcast at earthling dot net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  *
  19  */
  20
  21 #include "assets.h"
  22 #include "atrack.h"
  23 #include "automation.h"
  24 #include "aedits.h"
  25 #include "bcsignals.h"
  26 #include "edit.h"
  27 #include "edits.h"
  28 #include "edl.h"
  29 #include "edlsession.h"
  30 #include "filexml.h"
  31 #include "intauto.h"
  32 #include "intautos.h"
  33 #include "labels.h"
  34 #include "localsession.h"
  35 #include "mainundo.h"
  36 #include "module.h"
  37 #include "mainsession.h"
  38 #include "pluginserver.h"
  39 #include "pluginset.h"
  40 #include "plugin.h"
  41 #include "timebar.h"
  42 #include "trackcanvas.h"
  43 #include "tracks.h"
  44 #include "trackscroll.h"
  45 #include "transition.h"
  46 #include "transportque.h"
  47 #include "vtrack.h"
  48 #include <string.h>
  49
  50 int Tracks::blade(double position)
  51 {
  52         for( Track *track=first; track!=0; track=track->next ) {
  53                 if( !track->is_armed() ) continue;
  54                 track->blade(position);
  55         }
  56         return 0;
  57 }
  58
  59 int Tracks::clear(double start, double end, int clear_plugins, int edit_autos)
  60 {
  61         Track *current_track;
  62
  63         for(current_track = first;
  64                 current_track;
  65                 current_track = current_track->next)
  66         {
  67                 if(current_track->is_armed())
  68                 {
  69                         current_track->clear(start,
  70                                 end,
  71                                 1, // edits
  72                                 1, // labels
  73                                 clear_plugins, // edit_plugins
  74                                 edit_autos,
  75                                 0); // trim_edits
  76                 }
  77         }
  78         return 0;
  79 }
  80
  81 void Tracks::clear_automation(double selectionstart, double selectionend)
  82 {
  83         Track* current_track;
  84
  85         for(current_track = first; current_track; current_track = current_track->next)
  86         {
  87                 if(current_track->is_armed())
  88                 {
  89                         current_track->clear_automation(selectionstart,
  90                                 selectionend,
  91                                 0,
  92                                 0);
  93                 }
  94         }
  95 }
  96
  97 void Tracks::clear_transitions(double start, double end)
  98 {
  99         for(Track *current_track = first;
 100                 current_track;
 101                 current_track = current_track->next)
 102         {
 103                 if(current_track->is_armed())
 104                 {
 105                         int64_t start_units = current_track->to_units(start, 0);
 106                         int64_t end_units = current_track->to_units(end, 0);
 107
 108                         for(Edit *current_edit = current_track->edits->first;
 109                                 current_edit;
 110                                 current_edit = current_edit->next)
 111                         {
 112                                 if(current_edit->startproject >= start_units &&
 113                                         current_edit->startproject < end_units &&
 114                                         current_edit->transition)
 115                                 {
 116                                         current_edit->detach_transition();
 117                                 }
 118                         }
 119                 }
 120         }
 121 }
 122
 123 int Tracks::clear_hard_edges(double start, double end)
 124 {
 125         for( Track *track=first; track; track=track->next ) {
 126                 if( !track->is_armed() ) continue;
 127                 int64_t start_units = track->to_units(start, 0);
 128                 int64_t end_units = track->to_units(end, 0);
 129
 130                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
 131                         int64_t pos = edit->startproject;
 132                         if( pos > end_units ) break;
 133                         if( pos >= start_units ) {
 134                                 edit->hard_left = 0;
 135                                 if( edit->previous )
 136                                         edit->previous->hard_right = 0;
 137                         }
 138                         pos += edit->length;
 139                         if( pos > end_units ) break;
 140                         if( pos >= start_units ) {
 141                                 edit->hard_right = 0;
 142                                 if( edit->next )
 143                                         edit->next->hard_left = 0;
 144                         }
 145                 }
 146         }
 147         return 0;
 148 }
 149
 150 void Tracks::shuffle_edits(double start, double end)
 151 {
 152 // This doesn't affect automation or effects
 153 // Labels follow the first track.
 154         int first_track = 1;
 155         for(Track *current_track = first;
 156                 current_track;
 157                 current_track = current_track->next)
 158         {
 159                 if(current_track->is_armed())
 160                 {
 161                         current_track->shuffle_edits(start, end, first_track);
 162
 163                         first_track = 0;
 164                 }
 165         }
 166 }
 167
 168 void Tracks::reverse_edits(double start, double end)
 169 {
 170 // This doesn't affect automation or effects
 171 // Labels follow the first track.
 172         int first_track = 1;
 173         for(Track *current_track = first;
 174                 current_track;
 175                 current_track = current_track->next)
 176         {
 177                 if(current_track->is_armed())
 178                 {
 179                         current_track->reverse_edits(start, end, first_track);
 180
 181                         first_track = 0;
 182                 }
 183         }
 184 }
 185
 186 void Tracks::align_edits(double start, double end)
 187 {
 188 // This doesn't affect automation or effects
 189         Track *master_track = 0;
 190         for( Track *track=first; track; track=track->next ) {
 191                 if( !track->is_armed() ) continue;
 192                 if( !master_track )
 193                         master_track = track;
 194                 else
 195                         track->align_edits(start, end, master_track);
 196         }
 197 }
 198
 199 void Tracks::set_edit_length(double start, double end, double length)
 200 {
 201         int first_track = 1;
 202         for(Track *current_track = first;
 203                 current_track;
 204                 current_track = current_track->next)
 205         {
 206                 if(current_track->is_armed())
 207                 {
 208 #define USE_FLOATING_LENGTHS
 209
 210 #ifdef USE_FLOATING_LENGTHS
 211
 212
 213 // The first edit anchors the length offsets.
 214 // Round edits up & down so they end where they would if they all had floating point lengths.
 215                         //int first_edit = 1;
 216                         int64_t start_units = current_track->to_units(start, 0);
 217                         int64_t end_units = current_track->to_units(end, 0);
 218 // Total time of edits accumulated, in track units
 219                         int64_t total_units = 0;
 220 // Number of length offsets added so far
 221                         int total_lengths = 0;
 222
 223                         for(Edit *current_edit = current_track->edits->last;
 224                                 current_edit;
 225                                 current_edit = current_edit->previous)
 226                         {
 227                                 if(current_edit->startproject >= start_units &&
 228                                         current_edit->startproject + current_edit->length <= end_units)
 229                                 {
 230 // Calculate true length based on number of length offsets & total time
 231                                         double end_time = (1 + total_lengths) * length;
 232                                         int64_t length_units = current_track->to_units(end_time, 0) -
 233                                                 total_units;
 234                                         if(length_units < 1) length_units = 1;
 235 //printf("Tracks::set_edit_length %d %f %f\n", __LINE__,
 236 // end_time, current_track->from_units(total_units));
 237                                         total_units += length_units;
 238
 239 // Go in using the edit handle interface
 240                                         int64_t starting_length = current_edit->length;
 241
 242                                         current_edit->shift_end(MOVE_RIPPLE,
 243                                                 current_edit->startproject + length_units,
 244                                                 current_edit->startproject + current_edit->length,
 245                                                 0,
 246                                                 edl->session->autos_follow_edits,
 247                                                 edl->session->plugins_follow_edits,
 248                                                 0);
 249
 250                                         int64_t ending_length = current_edit->length;
 251
 252                                         if(edl->session->labels_follow_edits && first_track)
 253                                         {
 254 // printf("Tracks::set_edit_length %d %f %f\n",
 255 // __LINE__,
 256 // current_track->from_units(current_edit->startproject + starting_length),
 257 // current_track->from_units(current_edit->startproject + ending_length));
 258                                                  edl->labels->modify_handles(
 259                                                         current_track->from_units(current_edit->startproject + starting_length),
 260                                                         current_track->from_units(current_edit->startproject + ending_length),
 261                                                         1);
 262                                         }
 263
 264
 265                                         //first_edit = 0;
 266                                         total_lengths++;
 267                                 }
 268                         }
 269
 270
 271
 272 #else // USE_FLOATING_LENGTHS
 273
 274 // The first edit anchors the length offsets.
 275 // The idea was to round edits up & down so they end where they should
 276 // if they all had floating point lengths.  It's easier just to make sure the framerate
 277 // is divisible by the required length.
 278 //                      int first_edit = 1;
 279                         int64_t start_units = current_track->to_units(start, 0);
 280                         int64_t end_units = current_track->to_units(end, 0);
 281                         int64_t length_units = current_track->to_units(length, 1);
 282 // Starting time of the length offsets in seconds
 283 //                      double start_time = 0;
 284 // Number of length offsets added so far
 285 //                      int total_lengths = 0;
 286
 287                         for(Edit *current_edit = current_track->edits->last;
 288                                 current_edit;
 289                                 current_edit = current_edit->previous)
 290                         {
 291                                 if(current_edit->startproject >= start_units &&
 292                                         current_edit->startproject + current_edit->length <= end_units)
 293                                 {
 294 // Calculate starting time of length offsets
 295 //                                      if(first_edit)
 296 //                                      {
 297 //                                              start_time = current_track->from_units(current_edit->startproject);
 298 //                                      }
 299
 300 // Calculate true length based on number of length offsets
 301 //                                      double end_time = start_time + (1 + total_lengths) * length;
 302 //                                      int64_t length_units = current_track->to_units(end_time, 0) -
 303 //                                              current_edit->startproject;
 304 //                                      if(length_units < 1) length_units = 1;
 305
 306 // Go in using the edit handle interface
 307                                         int64_t starting_length = current_edit->length;
 308
 309                                         current_edit->shift_end(MOVE_RIPPLE,
 310                                                 current_edit->startproject + length_units,
 311                                                 current_edit->startproject + current_edit->length,
 312                                                 0,
 313                                                 edl->session->autos_follow_edits,
 314                                                 edl->session->plugins_follow_edits,
 315                                                 0);
 316
 317                                         int64_t ending_length = current_edit->length;
 318
 319                                         if(edl->session->labels_follow_edits && first_track) {
 320 // printf("Tracks::set_edit_length %d %f %f\n", __LINE__,
 321 // current_track->from_units(current_edit->startproject + starting_length),
 322 // current_track->from_units(current_edit->startproject + ending_length));
 323                                                  edl->labels->modify_handles(
 324                                                         current_track->from_units(current_edit->startproject + starting_length),
 325                                                         current_track->from_units(current_edit->startproject + ending_length),
 326                                                         1);
 327                                         }
 328
 329
 330 //                                      first_edit = 0;
 331 //                                      total_lengths++;
 332                                 }
 333                         }
 334 #endif // !USE_FLOATING_LENGTHS
 335
 336                         first_track = 0;
 337                 }
 338         }
 339 }
 340
 341 void Tracks::set_transition_length(double start, double end, double length)
 342 {
 343         for(Track *current_track = first;
 344                 current_track;
 345                 current_track = current_track->next)
 346         {
 347                 if(current_track->is_armed())
 348                 {
 349                         int64_t start_units = current_track->to_units(start, 0);
 350                         int64_t end_units = current_track->to_units(end, 0);
 351
 352                         for(Edit *current_edit = current_track->edits->first;
 353                                 current_edit;
 354                                 current_edit = current_edit->next)
 355                         {
 356                                 if(current_edit->startproject >= start_units &&
 357                                         current_edit->startproject < end_units &&
 358                                         current_edit->transition)
 359                                 {
 360                                         current_edit->transition->length =
 361                                                 current_track->to_units(length, 1);
 362                                         if( current_edit == current_track->edits->last &&
 363                                             current_edit->silence() ) {
 364                                                 current_edit->length = current_edit->transition->length;
 365                                         }
 366                                 }
 367                         }
 368                 }
 369         }
 370 }
 371
 372 void Tracks::set_transition_length(Transition *transition, double length)
 373 {
 374 // Must verify existence of transition
 375         int done = 0;
 376         if(!transition) return;
 377         for(Track *current_track = first;
 378                 current_track && !done;
 379                 current_track = current_track->next)
 380         {
 381                 for(Edit *current_edit = current_track->edits->first;
 382                         current_edit && !done;
 383                         current_edit = current_edit->next)
 384                 {
 385                         if(current_edit->transition == transition)
 386                         {
 387                                 transition->length = current_track->to_units(length, 1);
 388                                 if( current_edit == current_track->edits->last &&
 389                                     current_edit->silence() ) {
 390                                         current_edit->length = current_edit->transition->length;
 391                                 }
 392                                 done = 1;
 393                         }
 394                 }
 395         }
 396 }
 397
 398 void Tracks::paste_transitions(double start, double end, int track_type, char* title)
 399 {
 400         int count = 0;
 401         for( Track *track=first; track; track=track->next ) {
 402                 if( !track->is_armed() || track->data_type != track_type ) continue;
 403                 for( Edit *edit=track->edits->first;  edit; edit=edit->next ) {
 404                         if( !edit->is_selected ) continue;
 405                         edit->insert_transition(title);
 406                         ++count;
 407                 }
 408         }
 409         if( count > 0 ) {
 410                 clear_selected_edits();
 411                 return;
 412         }
 413
 414         for( Track *track=first; track; track=track->next ) {
 415                 if( !track->is_armed() || track->data_type != track_type ) continue;
 416                 int64_t start_units = track->to_units(start, 0);
 417                 int64_t end_units = track->to_units(end, 0);
 418                 if( start_units == end_units ) {
 419                         for( Edit *edit = track->edits->first; edit; edit = edit->next) {
 420                                 int64_t edit_start = edit->startproject;
 421                                 int64_t edit_end = edit_start + edit->length;
 422                                 if( edit_start > start_units ) continue;
 423                                 if( start_units == track->edits->length() ) {
 424                                         double length = edl->session->default_transition_length;
 425                                         int64_t units = track->to_units(length, 1);
 426                                         edit = track->edits->
 427                                                 create_silence(start_units, start_units+units);
 428                                 }
 429                                 else if( start_units >= edit_end ) continue;
 430                                 edit->insert_transition(title);
 431                         }
 432                 }
 433                 else {
 434                         for( Edit *edit=track->edits->first; edit; edit=edit->next) {
 435                                 int64_t edit_start = edit->startproject;
 436                                 if( !edit_start ) continue;
 437                                 if( edit_start >= start_units && edit_start < end_units ) {
 438                                         edit->insert_transition(title);
 439                                 }
 440                         }
 441                 }
 442         }
 443 }
 444
 445 void Tracks::set_automation_mode(double selectionstart,
 446         double selectionend,
 447         int mode)
 448 {
 449         Track* current_track;
 450
 451         for(current_track = first; current_track; current_track = current_track->next)
 452         {
 453                 if(current_track->is_armed())
 454                 {
 455                         current_track->set_automation_mode(selectionstart,
 456                                 selectionend,
 457                                 mode);
 458                 }
 459         }
 460 }
 461
 462 int Tracks::clear_default_keyframe()
 463 {
 464         for(Track *current = first; current; current = NEXT)
 465         {
 466                 if(current->is_armed())
 467                         current->clear_automation(0, 0, 0, 1);
 468         }
 469         return 0;
 470 }
 471
 472 int Tracks::clear_handle(double start,
 473         double end,
 474         double &longest_distance,
 475         int clear_labels,
 476         int clear_plugins,
 477         int edit_autos)
 478 {
 479         Track* current_track;
 480         double distance;
 481
 482         for(current_track = first; current_track; current_track = current_track->next)
 483         {
 484                 if(current_track->is_armed())
 485                 {
 486                         current_track->clear_handle(start,
 487                                 end,
 488                                 clear_labels,
 489                                 clear_plugins,
 490                                 edit_autos,
 491                                 distance);
 492                         if(distance > longest_distance) longest_distance = distance;
 493                 }
 494         }
 495
 496         return 0;
 497 }
 498
 499 int Tracks::copy_automation(double selectionstart,
 500         double selectionend,
 501         FileXML *file,
 502         int default_only,
 503         int autos_only)
 504 {
 505 // called by MWindow::copy_automation for copying automation alone
 506         Track* current_track;
 507
 508         file->tag.set_title("AUTO_CLIPBOARD");
 509         file->tag.set_property("LENGTH", selectionend - selectionstart);
 510         file->tag.set_property("FRAMERATE", edl->session->frame_rate);
 511         file->tag.set_property("SAMPLERATE", edl->session->sample_rate);
 512         file->append_tag();
 513         file->append_newline();
 514         file->append_newline();
 515
 516         for(current_track = first;
 517                 current_track;
 518                 current_track = current_track->next)
 519         {
 520                 if(current_track->is_armed())
 521                 {
 522                         current_track->copy_automation(selectionstart,
 523                                 selectionend,
 524                                 file,
 525                                 default_only,
 526                                 autos_only);
 527                 }
 528         }
 529
 530         file->tag.set_title("/AUTO_CLIPBOARD");
 531         file->append_tag();
 532         file->append_newline();
 533         file->terminate_string();
 534         return 0;
 535 }
 536
 537 // int Tracks::copy_default_keyframe(FileXML *file)
 538 // {
 539 //      copy_automation(0, 0, file, 1, 0);
 540 //      return 0;
 541 // }
 542
 543 int Tracks::delete_tracks()
 544 {
 545         int total_deleted = 0;
 546         int done = 0;
 547         int gang = edl->session->gang_tracks != GANG_NONE ? 1 : 0;
 548
 549         while( !done ) {
 550                 done = 1;
 551                 for( Track* track=first, *nxt=0; done && track; track=nxt ) {
 552                         nxt = track->next;
 553                         if( gang ) {
 554                                 while( nxt && !nxt->master ) nxt = nxt->next;
 555                         }
 556                         if( !track->is_armed() ) continue;
 557                         delete_track(track);
 558                         ++total_deleted;
 559                 }
 560         }
 561         return total_deleted;
 562 }
 563
 564 void Tracks::move_edits(ArrayList<Edit*> *in_edits, Track *track, double position,
 565         int edit_labels, int edit_plugins, int edit_autos, int mode)
 566 {
 567 // have to make a copy, optimize kills edits
 568         ArrayList<Edit*> edits;
 569         for( int i=0; i<in_edits->size(); ++i ) {
 570                 Edit *edit = in_edits->get(i);
 571                 Edit *new_edit = new Edit(edit->edl, edit->track);
 572                 new_edit->copy_from(edit);
 573                 edits.append(new_edit);
 574         }
 575
 576         int current_aedit = 0, current_vedit = 0;
 577 //printf("Tracks::move_edits 1\n");
 578         for( Track *dest_track=track; dest_track; dest_track=dest_track->next ) {
 579                 if( !dest_track->is_armed() ) continue;
 580 // Need a local copy of the source edit since the original source edit may
 581 // change in the editing operation.
 582 // Get source edit
 583                 Edit *source_edit = 0;
 584                 Track *clip_track = 0;
 585                 switch( dest_track->data_type ) {
 586                 case TRACK_AUDIO: {
 587                         while( current_aedit < edits.size() ) {
 588                                 Edit *edit = edits[current_aedit++];
 589                                 if( edit->track->data_type == TRACK_AUDIO ) {
 590                                         source_edit = edit;
 591                                         ATrack *atrack = new ATrack(dest_track->edl, 0);
 592                                         atrack->create_objects();
 593                                         clip_track = atrack;
 594                                         break;
 595                                 }
 596                         }
 597                         break; }
 598                 case TRACK_VIDEO: {
 599                         while( current_vedit < edits.size() ) {
 600                                 Edit *edit = edits[current_vedit++];
 601                                 if( edit->track->data_type == TRACK_VIDEO ) {
 602                                         source_edit = edit;
 603                                         VTrack *vtrack = new VTrack(dest_track->edl, 0);
 604                                         vtrack->create_objects();
 605                                         clip_track = vtrack;
 606                                         break;
 607                                 }
 608                         }
 609                         break; }
 610                 }
 611                 if( !source_edit ) continue;
 612
 613                 Track *source_track = source_edit->track;
 614                 int64_t start = source_edit->startproject;
 615                 int64_t length = source_edit->length, end = start + length;
 616                 double source_start = source_track->from_units(start);
 617                 double source_end = source_track->from_units(start+length);
 618                 double len = source_end - source_start;
 619                 double dest_start = position;
 620                 double dest_end = dest_start + len;
 621
 622                 if( edit_labels && dest_track == track ) {
 623                         FileXML label_xml;
 624                         Labels labels(0, "LABELS");
 625                         source_edit->edl->labels->copy(source_start, source_end, &label_xml);
 626                         source_edit->edl->labels->clear(source_start, source_end, mode);
 627                         if( !label_xml.read_tag() )
 628                                 labels.load(&label_xml, LOAD_ALL);
 629                         double pos = dest_start;
 630                         if( mode && source_start < dest_start ) pos -= len;
 631                         edl->labels->insert_labels(&labels, pos, len, mode);
 632                         edit_labels = 0;
 633                 }
 634
 635                 FileXML track_xml;
 636                 source_track->copy(COPY_TRACKS, source_start, source_end, &track_xml, "");
 637                 if( !track_xml.read_tag() )
 638                         clip_track->load(&track_xml, 0, LOAD_ALL);
 639
 640                 if( !mode ) { // mute and overwrite
 641                         source_track->clear(start, end, 1, 0,
 642                                 edit_plugins, edit_autos, 0);
 643                         source_track->edits->paste_silence(start, end);
 644                         if( edit_autos )
 645                                 source_track->shift_keyframes(start, length);
 646                         if( edit_plugins ) {
 647                                 int n = source_track->plugin_set.size();
 648                                 if( n > 0 ) dest_track->expand_view = 1;
 649                                 for( int k=0; k<n; ++k )
 650                                         source_track->plugin_set[k]->paste_silence(start, end, 1);
 651                         }
 652                         dest_track->clear(dest_start, dest_end, 1, 0,
 653                                 edit_plugins, edit_autos, 0);
 654                         dest_track->insert_track(clip_track, dest_start, 0,
 655                                 edit_plugins, edit_autos, len);
 656                 }
 657                 else { // cut and paste
 658                         dest_track->insert_track(clip_track, dest_start, 0,
 659                                 edit_plugins, edit_autos, len);
 660                         if( source_track == dest_track && dest_start < source_start ) {
 661                                 source_start += len;   source_end += len;
 662                         }
 663                         source_track->clear(source_start, source_end, 1, 0,
 664                                 edit_plugins, edit_autos, 0);
 665                 }
 666
 667                 delete clip_track;
 668                 dest_track->optimize();
 669         }
 670
 671         edits.remove_all_objects();
 672 }
 673
 674 void Tracks::move_effect(Plugin *plugin, Track *track, int64_t position)
 675 {
 676         Track *source_track = plugin->track;
 677         Plugin *result = 0;
 678 // Create a new plugin set
 679         double start = track->from_units(position);
 680         double length = track->from_units(plugin->length);
 681
 682         result = track->insert_effect("", &plugin->shared_location, 0, 0,
 683                                 start, length, plugin->plugin_type);
 684         result->copy_from(plugin);
 685         result->shift(position - plugin->startproject);
 686
 687 // Clear new plugin from old set
 688         plugin->plugin_set->clear(plugin->startproject,
 689                 plugin->startproject + plugin->length,
 690                 edl->session->autos_follow_edits);
 691
 692         source_track->optimize();
 693 }
 694
 695 void Tracks::move_effect(Plugin *plugin, PluginSet *plugin_set, int64_t position)
 696 {
 697 // src/dest track must be the same
 698 // replace plugin in source plugin_set with silence
 699         PluginSet *src_plugin_set = plugin->plugin_set;
 700         Plugin *silent = new Plugin(edl, src_plugin_set, "");
 701         silent->startproject = plugin->startproject;
 702         silent->length = plugin->length;
 703         src_plugin_set->insert_after(plugin, silent);
 704         src_plugin_set->remove_pointer(plugin);
 705 // truncate previous plugin
 706         Plugin *dest = (Plugin *)plugin_set->editof(position, PLAY_FORWARD, 0);
 707 // add plugin after dest
 708         plugin_set->insert_after(dest, plugin);
 709         if( dest ) {
 710                 dest->length = position - dest->startproject;
 711                 if( dest->length < 0 ) dest->length = 0;
 712         }
 713 // update plugin position
 714         plugin->startproject = position;
 715         plugin->plugin_set = plugin_set;
 716         plugin->edits = plugin_set;
 717         src_plugin_set->track->optimize();
 718 }
 719
 720 int Tracks::concatenate_tracks(int edit_plugins, int edit_autos)
 721 {
 722         Track *output_track, *first_output_track, *input_track;
 723         int i, data_type = TRACK_AUDIO;
 724         double output_start;
 725         int result = 0;
 726
 727 // Relocate tracks
 728         for(i = 0; i < 2; i++)
 729         {
 730 // Get first output track
 731                 for(output_track = first;
 732                         output_track;
 733                         output_track = output_track->next)
 734                         if(output_track->data_type == data_type &&
 735                                 output_track->is_armed()) break;
 736
 737                 first_output_track = output_track;
 738
 739 // Get first input track
 740                 for(input_track = first;
 741                         input_track;
 742                         input_track = input_track->next)
 743                 {
 744                         if(input_track->data_type == data_type &&
 745                                 input_track->play &&
 746                                 !input_track->is_armed()) break;
 747                 }
 748
 749
 750                 if(output_track && input_track)
 751                 {
 752 // Transfer input track to end of output track one at a time
 753                         while(input_track)
 754                         {
 755                                 output_start = output_track->get_length();
 756                                 output_track->insert_track(input_track,
 757                                         output_start,
 758                                         0,
 759                                         edit_plugins,
 760                                         edit_autos,
 761                                         0);
 762
 763 // Get next source and destination
 764                                 for(input_track = input_track->next;
 765                                         input_track;
 766                                         input_track = input_track->next)
 767                                 {
 768
 769                                         if(input_track->data_type == data_type &&
 770                                                 !input_track->is_armed() &&
 771                                                 input_track->play) break;
 772                                 }
 773
 774                                 for(output_track = output_track->next;
 775                                         output_track;
 776                                         output_track = output_track->next)
 777                                 {
 778                                         if(output_track->data_type == data_type &&
 779                                                 output_track->is_armed()) break;
 780                                 }
 781
 782                                 if(!output_track)
 783                                 {
 784                                         output_track = first_output_track;
 785                                 }
 786                         }
 787                         result = 1;
 788                 }
 789
 790                 if(data_type == TRACK_AUDIO) data_type = TRACK_VIDEO;
 791         }
 792
 793         return result;
 794 }
 795
 796 int Tracks::delete_all_tracks()
 797 {
 798         while(last) delete last;
 799         return 0;
 800 }
 801
 802
 803 void Tracks::change_modules(int old_location, int new_location, int do_swap)
 804 {
 805         for(Track* current = first ; current; current = current->next)
 806         {
 807                 current->change_modules(old_location, new_location, do_swap);
 808         }
 809 }
 810
 811 void Tracks::change_plugins(SharedLocation &old_location, SharedLocation &new_location, int do_swap)
 812 {
 813         for(Track* current = first ; current; current = current->next)
 814         {
 815                 current->change_plugins(old_location, new_location, do_swap);
 816         }
 817 }
 818
 819
 820
 821 // =========================================== EDL editing
 822
 823
 824 int Tracks::copy(int copy_flags, double start, double end,
 825                 FileXML *file, const char *output_path)
 826 {
 827         int all = (copy_flags & COPY_ALL) ? 1 : 0;
 828 // if nothing selected
 829         if( start == end && !all ) return 1;
 830         for( Track *track=first; track; track=track->next ) {
 831                 if( track->is_armed() || all )
 832                         track->copy(copy_flags, start, end, file, output_path);
 833         }
 834         return 0;
 835 }
 836
 837
 838
 839 int Tracks::move_track_up(Track *track)
 840 {
 841         if( first == last ) return 1;
 842         int n = 1;
 843         Track *src = track, *dst = src->previous;
 844         if( edl->session->gang_tracks != GANG_NONE ) {
 845                 while( src && !src->master ) src = src->previous;
 846                 if( !src ) src = first;
 847                 Track *nxt = src->next;
 848                 while( nxt && !nxt->master ) { ++n;  nxt = nxt->next; }
 849                 dst = src->previous;
 850                 while( dst && !dst->master ) { dst = dst->previous; }
 851         }
 852         if( src == dst ) return 1;
 853         move_tracks(src, dst, n);
 854         return 0;
 855 }
 856
 857 int Tracks::move_track_down(Track *track)
 858 {
 859         if( first == last ) return 1;
 860         int n = 1;
 861         Track *src = track, *dst = src->next;
 862         if( edl->session->gang_tracks != GANG_NONE ) {
 863                 while( src && !src->master ) src = src->previous;
 864                 if( !src ) src = first;
 865                 Track *nxt = src->next;
 866                 while( nxt && !nxt->master ) { ++n;  nxt = nxt->next; }
 867                 if( nxt ) {
 868                         nxt = nxt->next;
 869                         while( nxt && !nxt->master ) { nxt = nxt->next; }
 870                 }
 871                 else
 872                         nxt = first;
 873                 dst = nxt;
 874         }
 875         else
 876                 dst = !dst ? first : dst->next;
 877         if( src == dst ) return 1;
 878         move_tracks(src, dst, n);
 879         return 0;
 880 }
 881
 882
 883 int Tracks::move_tracks_up()
 884 {
 885         if( first == last ) return 1;
 886         int n = 1;
 887         Track *src = first, *dst = 0;
 888         if( edl->session->gang_tracks != GANG_NONE ) {
 889                 Track *nxt = src->next;
 890                 while( nxt && !nxt->master ) { ++n;  nxt = nxt->next; }
 891         }
 892         if( src == dst ) return 1;
 893         move_tracks(src, dst, n);
 894         return 0;
 895 }
 896
 897 int Tracks::move_tracks_down()
 898 {
 899         if( first == last ) return 1;
 900         int n = 1;
 901         Track *src = last, *dst = first;
 902         if( edl->session->gang_tracks != GANG_NONE ) {
 903                 while( src && !src->master ) { ++n;  src = src->previous; }
 904         }
 905         if( src == dst ) return 1;
 906         move_tracks(src, dst, n);
 907         return 0;
 908 }
 909
 910
 911 void Tracks::paste_audio_transition(PluginServer *server)
 912 {
 913         for(Track *current = first; current; current = NEXT)
 914         {
 915                 if(current->data_type == TRACK_AUDIO &&
 916                         current->is_armed())
 917                 {
 918                         int64_t position = current->to_units(
 919                                 edl->local_session->get_selectionstart(), 0);
 920                         Edit *current_edit = current->edits->editof(position,
 921                                 PLAY_FORWARD,
 922                                 0);
 923                         if( !current_edit && position == current->edits->length() ) {
 924                                 double length = edl->session->default_transition_length;
 925                                 int64_t units = current->to_units(length, 1);
 926                                 current_edit = current->edits->create_silence(position, position+units);
 927                         }
 928                         if(current_edit)
 929                         {
 930                                 paste_transition(server, current_edit);
 931                         }
 932                 }
 933         }
 934 }
 935
 936 void Tracks::paste_automation(double selectionstart,
 937         FileXML *file,
 938         int default_only,
 939         int active_only,
 940         int typeless)
 941 {
 942         Track* current_track = 0;
 943         Track* current_atrack = 0;
 944         Track* current_vtrack = 0;
 945         Track* dst_track = 0;
 946         int src_type;
 947         int result = 0;
 948         double length;
 949         double frame_rate = edl->session->frame_rate;
 950         int64_t sample_rate = edl->session->sample_rate;
 951         char string[BCTEXTLEN];
 952         string[0] = 0;
 953
 954 // Search for start
 955         do{
 956           result = file->read_tag();
 957         }while(!result &&
 958                 !file->tag.title_is("AUTO_CLIPBOARD"));
 959
 960         if(!result)
 961         {
 962                 length = file->tag.get_property("LENGTH", 0);
 963                 frame_rate = file->tag.get_property("FRAMERATE", frame_rate);
 964                 sample_rate = file->tag.get_property("SAMPLERATE", sample_rate);
 965
 966
 967                 do
 968                 {
 969                         result = file->read_tag();
 970
 971                         if(!result)
 972                         {
 973                                 if(file->tag.title_is("/AUTO_CLIPBOARD"))
 974                                 {
 975                                         result = 1;
 976                                 }
 977                                 else
 978                                 if(file->tag.title_is("TRACK"))
 979                                 {
 980                                         file->tag.get_property("TYPE", string);
 981                                         if(!strcmp(string, "AUDIO"))
 982                                         {
 983                                                 src_type = TRACK_AUDIO;
 984                                         }
 985                                         else
 986                                         {
 987                                                 src_type = TRACK_VIDEO;
 988                                         }
 989
 990 // paste to any media type
 991                                         if(typeless)
 992                                         {
 993                                                 if(!current_track) current_track = first;
 994                                                 while(current_track && !current_track->is_armed())
 995                                                         current_track = current_track->next;
 996                                                 dst_track = current_track;
 997                                         }
 998                                         else
 999                                         if(!strcmp(string, "AUDIO"))
1000                                         {
1001 // Get next audio track
1002                                                 if(!current_atrack)
1003                                                         current_atrack = first;
1004                                                 else
1005                                                         current_atrack = current_atrack->next;
1006
1007                                                 while(current_atrack &&
1008                                                         (current_atrack->data_type != TRACK_AUDIO ||
1009                                                         !current_atrack->is_armed()))
1010                                                         current_atrack = current_atrack->next;
1011                                                 dst_track = current_atrack;
1012                                         }
1013                                         else
1014                                         {
1015 // Get next video track
1016                                                 if(!current_vtrack)
1017                                                         current_vtrack = first;
1018                                                 else
1019                                                         current_vtrack = current_vtrack->next;
1020
1021                                                 while(current_vtrack &&
1022                                                         (current_vtrack->data_type != TRACK_VIDEO ||
1023                                                         !current_vtrack->is_armed()))
1024                                                         current_vtrack = current_vtrack->next;
1025
1026                                                 dst_track = current_vtrack;
1027                                         }
1028
1029                                         if(dst_track)
1030                                         {
1031                                                 double frame_rate2 = frame_rate;
1032                                                 double sample_rate2 = sample_rate;
1033
1034                                                 if(src_type != dst_track->data_type)
1035                                                 {
1036                                                         frame_rate2 = sample_rate;
1037                                                         sample_rate2 = frame_rate;
1038                                                 }
1039
1040                                                 dst_track->paste_automation(selectionstart,
1041                                                         length,
1042                                                         frame_rate2,
1043                                                         sample_rate2,
1044                                                         file,
1045                                                         default_only,
1046                                                         active_only);
1047                                         }
1048                                 }
1049                         }
1050                 }while(!result);
1051         }
1052 }
1053
1054 // int Tracks::paste_default_keyframe(FileXML *file)
1055 // {
1056 //      paste_automation(0, file, 1, 0);
1057 //      return 0;
1058 // }
1059
1060 void Tracks::paste_transition(PluginServer *server, Edit *dest_edit)
1061 {
1062         dest_edit->insert_transition(server->title);
1063 }
1064
1065 void Tracks::paste_video_transition(PluginServer *server, int first_track)
1066 {
1067         for(Track *current = first; current; current = NEXT)
1068         {
1069                 if(current->data_type == TRACK_VIDEO &&
1070                         current->is_armed())
1071                 {
1072                         int64_t position = current->to_units(
1073                                 edl->local_session->get_selectionstart(), 0);
1074                         Edit *current_edit = current->edits->editof(position,
1075                                 PLAY_FORWARD,
1076                                 0);
1077                         if( !current_edit && position == current->edits->length() ) {
1078                                 double length = edl->session->default_transition_length;
1079                                 int64_t units = current->to_units(length, 1);
1080                                 current_edit = current->edits->create_silence(position, position+units);
1081                         }
1082                         if(current_edit)
1083                         {
1084                                 paste_transition(server, current_edit);
1085                         }
1086                         if(first_track) break;
1087                 }
1088         }
1089 }
1090
1091
1092 int Tracks::paste_silence(double start,
1093         double end,
1094         int edit_plugins,
1095         int edit_autos)
1096 {
1097         Track* current_track;
1098
1099         for(current_track = first;
1100                 current_track;
1101                 current_track = current_track->next)
1102         {
1103                 if(current_track->is_armed())
1104                 {
1105                         current_track->paste_silence(start,
1106                                 end,
1107                                 edit_plugins,
1108                                 edit_autos);
1109                 }
1110         }
1111         return 0;
1112 }
1113
1114
1115
1116 int Tracks::select_auto(int cursor_x, int cursor_y)
1117 {
1118         int result = 0;
1119         for(Track* current = first; current && !result; current = NEXT) { result = current->select_auto(&auto_conf, cursor_x, cursor_y); }
1120         return result;
1121 }
1122
1123 int Tracks::move_auto(int cursor_x, int cursor_y, int shift_down)
1124 {
1125         int result = 0;
1126
1127         for(Track* current = first; current && !result; current = NEXT)
1128         {
1129                 result = current->move_auto(&auto_conf, cursor_x, cursor_y, shift_down);
1130         }
1131         return 0;
1132 }
1133
1134 int Tracks::modify_edithandles(double &oldposition, double &newposition,
1135         int currentend, int handle_mode, int edit_labels,
1136         int edit_plugins, int edit_autos, int group_id)
1137 {
1138         for( Track *track=first; track; track=track->next ) {
1139                 if( !track->is_armed() ) continue;
1140                 track->modify_edithandles(oldposition, newposition,
1141                         currentend, handle_mode, edit_labels,
1142                         edit_plugins, edit_autos, group_id);
1143 // labels follow first armed track
1144                 edit_labels = 0;
1145         }
1146         return 0;
1147 }
1148
1149 int Tracks::modify_pluginhandles(double &oldposition, double &newposition,
1150         int currentend, int handle_mode, int edit_labels,
1151         int edit_autos, Edits *trim_edits)
1152 {
1153         for( Track *track=first; track; track=track->next ) {
1154                 if( !track->is_armed() ) continue;
1155                 track->modify_pluginhandles(oldposition, newposition,
1156                         currentend, handle_mode, edit_labels,
1157                         edit_autos, trim_edits);
1158         }
1159         return 0;
1160 }
1161
1162
1163 int Tracks::purge_asset(Asset *asset)
1164 {
1165         Track *current_track;
1166         int result = 0;
1167
1168         for(current_track = first; current_track; current_track = current_track->next)
1169         {
1170                 result += current_track->purge_asset(asset);
1171         }
1172         return result;
1173 }
1174
1175 int Tracks::asset_used(Asset *asset)
1176 {
1177         Track *current_track;
1178         int result = 0;
1179
1180         for(current_track = first; current_track; current_track = current_track->next)
1181         {
1182                 result += current_track->asset_used(asset);
1183         }
1184         return result;
1185 }
1186
1187 int Tracks::scale_time(float rate_scale, int ignore_record, int scale_edits, int scale_autos, int64_t start, int64_t end)
1188 {
1189         Track *current_track;
1190
1191         for(current_track = first;
1192                 current_track;
1193                 current_track = current_track->next)
1194         {
1195                 if((current_track->is_armed() || ignore_record) &&
1196                         current_track->data_type == TRACK_VIDEO)
1197                 {
1198                         current_track->scale_time(rate_scale, scale_edits, scale_autos, start, end);
1199                 }
1200         }
1201         return 0;
1202 }
1203