cinelerra-5.1/cinelerra/edl.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 1997-2012 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 "asset.h"
  23 #include "assets.h"
  24 #include "atrack.h"
  25 #include "autoconf.h"
  26 #include "automation.h"
  27 #include "awindowgui.h"
  28 #include "bccmodels.h"
  29 #include "bchash.h"
  30 #include "bcsignals.h"
  31 #include "clip.h"
  32 #include "cstrdup.h"
  33 #include "clipedls.h"
  34 #include "edits.h"
  35 #include "edl.h"
  36 #include "edlsession.h"
  37 #include "filexml.h"
  38 #include "floatauto.h"
  39 #include "floatautos.h"
  40 #include "guicast.h"
  41 #include "indexstate.h"
  42 #include "interlacemodes.h"
  43 #include "labels.h"
  44 #include "localsession.h"
  45 #include "maskautos.h"
  46 #include "mutex.h"
  47 #include "panauto.h"
  48 #include "panautos.h"
  49 #include "playbackconfig.h"
  50 #include "playabletracks.h"
  51 #include "plugin.h"
  52 #include "preferences.h"
  53 #include "recordconfig.h"
  54 #include "recordlabel.h"
  55 #include "sharedlocation.h"
  56 #include "theme.h"
  57 #include "tracks.h"
  58 #include "transportque.inc"
  59 #include "versioninfo.h"
  60 #include "vedit.h"
  61 #include "vtrack.h"
  62
  63
  64
  65
  66 EDL::EDL(EDL *parent_edl)
  67  : Indexable(0)
  68 {
  69         this->parent_edl = parent_edl;
  70         tracks = 0;
  71         labels = 0;
  72         local_session = 0;
  73         id = next_id();
  74         path[0] = 0;
  75 }
  76
  77
  78 EDL::~EDL()
  79 {
  80
  81         delete tracks;
  82         delete labels;
  83         delete local_session;
  84         remove_vwindow_edls();
  85         if( !parent_edl ) {
  86                 delete assets;
  87                 delete session;
  88         }
  89 }
  90
  91
  92 void EDL::create_objects()
  93 {
  94         tracks = new Tracks(this);
  95         assets = !parent_edl ? new Assets(this) : parent_edl->assets;
  96         session = !parent_edl ? new EDLSession(this) : parent_edl->session;
  97         local_session = new LocalSession(this);
  98         labels = new Labels(this, "LABELS");
  99 }
 100
 101 EDL& EDL::operator=(EDL &edl)
 102 {
 103 printf("EDL::operator= 1\n");
 104         copy_all(&edl);
 105         return *this;
 106 }
 107
 108 int EDL::load_defaults(BC_Hash *defaults)
 109 {
 110         if( !parent_edl )
 111                 session->load_defaults(defaults);
 112
 113         local_session->load_defaults(defaults);
 114         return 0;
 115 }
 116
 117 int EDL::save_defaults(BC_Hash *defaults)
 118 {
 119         if( !parent_edl )
 120                 session->save_defaults(defaults);
 121
 122         local_session->save_defaults(defaults);
 123         return 0;
 124 }
 125
 126 void EDL::boundaries()
 127 {
 128         session->boundaries();
 129         local_session->boundaries();
 130 }
 131
 132 int EDL::create_default_tracks()
 133 {
 134
 135         for( int i=0; i<session->video_tracks; ++i ) {
 136                 tracks->add_video_track(0, 0);
 137         }
 138         for( int i=0; i<session->audio_tracks; ++i ) {
 139                 tracks->add_audio_track(0, 0);
 140         }
 141         return 0;
 142 }
 143
 144 int EDL::load_xml(FileXML *file, uint32_t load_flags)
 145 {
 146         int result = 0;
 147         folders.clear();
 148
 149         if( (load_flags & LOAD_ALL) == LOAD_ALL ) {
 150                 remove_vwindow_edls();
 151         }
 152
 153
 154 // Search for start of master EDL.
 155
 156 // The parent_edl test caused clip creation to fail since those XML files
 157 // contained an EDL tag.
 158
 159 // The parent_edl test is required to make EDL loading work because
 160 // when loading an EDL the EDL tag is already read by the parent.
 161
 162         if( !parent_edl ) {
 163                 do {
 164                   result = file->read_tag();
 165                 } while(!result &&
 166                         !file->tag.title_is("XML") &&
 167                         !file->tag.title_is("EDL"));
 168         }
 169         return result ? result : read_xml(file, load_flags);
 170 }
 171
 172 int EDL::read_xml(FileXML *file, uint32_t load_flags)
 173 {
 174         int result = 0;
 175 // Track numbering offset for replacing undo data.
 176         int track_offset = 0;
 177
 178 // Get path for backups
 179         file->tag.get_property("path", path);
 180
 181 // Erase everything
 182         if( (load_flags & LOAD_ALL) == LOAD_ALL ||
 183                 (load_flags & LOAD_EDITS) == LOAD_EDITS ) {
 184                 while(tracks->last) delete tracks->last;
 185         }
 186
 187         if( (load_flags & LOAD_ALL) == LOAD_ALL ) {
 188                 clips.clear();
 189                 mixers.remove_all_objects();
 190         }
 191
 192         if( load_flags & LOAD_TIMEBAR ) {
 193                 while(labels->last) delete labels->last;
 194                 local_session->unset_inpoint();
 195                 local_session->unset_outpoint();
 196         }
 197
 198 // This was originally in LocalSession::load_xml
 199         if( load_flags & LOAD_SESSION ) {
 200                 local_session->clipboard_length = 0;
 201         }
 202
 203         do {
 204                 result = file->read_tag();
 205
 206                 if( !result ) {
 207                         if( file->tag.title_is("/XML") ||
 208                                 file->tag.title_is("/EDL") ||
 209                                 file->tag.title_is("/CLIP_EDL") ||
 210                                 file->tag.title_is("/NESTED_EDL") ||
 211                                 file->tag.title_is("/VWINDOW_EDL") ) {
 212                                 result = 1;
 213                         }
 214                         else
 215                         if( file->tag.title_is("CLIPBOARD") ) {
 216                                 local_session->clipboard_length =
 217                                         file->tag.get_property("LENGTH", (double)0);
 218                         }
 219                         else
 220                         if( file->tag.title_is("VIDEO") ) {
 221                                 if( (load_flags & LOAD_VCONFIG) &&
 222                                         (load_flags & LOAD_SESSION) )
 223                                         session->load_video_config(file, 0, load_flags);
 224                                 else
 225                                         result = file->skip_tag();
 226                         }
 227                         else
 228                         if( file->tag.title_is("AUDIO") ) {
 229                                 if( (load_flags & LOAD_ACONFIG) &&
 230                                         (load_flags & LOAD_SESSION) )
 231                                         session->load_audio_config(file, 0, load_flags);
 232                                 else
 233                                         result = file->skip_tag();
 234                         }
 235                         else
 236                         if( file->tag.title_is("FOLDERS") ) {
 237                                 result = folders.load_xml(file);
 238                         }
 239                         else
 240                         if( file->tag.title_is("MIXERS") ) {
 241                                 if( (load_flags & LOAD_SESSION) )
 242                                         mixers.load(file);
 243                                 else
 244                                         result = file->skip_tag();
 245                         }
 246                         else
 247                         if( file->tag.title_is("ASSETS") ) {
 248                                 if( load_flags & LOAD_ASSETS )
 249                                         assets->load(file, load_flags);
 250                                 else
 251                                         result = file->skip_tag();
 252                         }
 253                         else
 254                         if( file->tag.title_is(labels->xml_tag) ) {
 255                                 if( load_flags & LOAD_TIMEBAR )
 256                                         labels->load(file, load_flags);
 257                                 else
 258                                         result = file->skip_tag();
 259                         }
 260                         else
 261                         if( file->tag.title_is("LOCALSESSION") ) {
 262                                 if( (load_flags & LOAD_SESSION) ||
 263                                         (load_flags & LOAD_TIMEBAR) )
 264                                         local_session->load_xml(file, load_flags);
 265                                 else
 266                                         result = file->skip_tag();
 267                         }
 268                         else
 269                         if( file->tag.title_is("SESSION") ) {
 270                                 if( (load_flags & LOAD_SESSION) &&
 271                                         !parent_edl )
 272                                         session->load_xml(file, 0, load_flags);
 273                                 else
 274                                         result = file->skip_tag();
 275                         }
 276                         else
 277                         if( file->tag.title_is("TRACK") ) {
 278                                 tracks->load(file, track_offset, load_flags);
 279                         }
 280                         else
 281 // Sub EDL.
 282 // Causes clip creation to fail because that involves an opening EDL tag.
 283                         if( file->tag.title_is("CLIP_EDL") && !parent_edl ) {
 284                                 EDL *new_edl = new EDL(this);
 285                                 new_edl->create_objects();
 286                                 new_edl->read_xml(file, LOAD_ALL);
 287                                 if( (load_flags & LOAD_ALL) == LOAD_ALL )
 288                                         clips.add_clip(new_edl);
 289                                 new_edl->remove_user();
 290                         }
 291                         else
 292                         if( file->tag.title_is("NESTED_EDL") ) {
 293                                 EDL *nested_edl = new EDL;
 294                                 nested_edl->create_objects();
 295                                 nested_edl->read_xml(file, LOAD_ALL);
 296                                 if( (load_flags & LOAD_ALL) == LOAD_ALL )
 297                                         nested_edls.get_nested(nested_edl);
 298                                 nested_edl->remove_user();
 299                         }
 300                         else
 301                         if( file->tag.title_is("VWINDOW_EDL") && !parent_edl ) {
 302                                 EDL *new_edl = new EDL(this);
 303                                 new_edl->create_objects();
 304                                 new_edl->read_xml(file, LOAD_ALL);
 305
 306
 307                                 if( (load_flags & LOAD_ALL) == LOAD_ALL ) {
 308 //                                              if( vwindow_edl && !vwindow_edl_shared )
 309 //                                                      vwindow_edl->remove_user();
 310 //                                              vwindow_edl_shared = 0;
 311 //                                              vwindow_edl = new_edl;
 312
 313                                         append_vwindow_edl(new_edl, 0);
 314
 315                                 }
 316                                 else
 317 // Discard if not replacing EDL
 318                                 {
 319                                         new_edl->remove_user();
 320                                         new_edl = 0;
 321                                 }
 322                         }
 323                 }
 324         } while(!result);
 325
 326         boundaries();
 327 //dump();
 328
 329         return 0;
 330 }
 331
 332 // Output path is the path of the output file if name truncation is desired.
 333 // It is a "" if complete names should be used.
 334 // Called recursively by copy for clips, thus the string can't be terminated.
 335 // The string is not terminated in this call.
 336 int EDL::save_xml(FileXML *file, const char *output_path)
 337 {
 338         copy(1, file, output_path, 0);
 339         return 0;
 340 }
 341
 342 int EDL::copy_all(EDL *edl)
 343 {
 344         if( this == edl ) return 0;
 345         update_index(edl);
 346         copy_session(edl);
 347         copy_assets(edl);
 348         copy_clips(edl);
 349         copy_nested(edl);
 350         copy_mixers(edl);
 351         tracks->copy_from(edl->tracks);
 352         labels->copy_from(edl->labels);
 353         return 0;
 354 }
 355
 356 void EDL::copy_clips(EDL *edl)
 357 {
 358         if( this == edl ) return;
 359
 360         remove_vwindow_edls();
 361
 362 //      if( vwindow_edl && !vwindow_edl_shared )
 363 //              vwindow_edl->remove_user();
 364 //      vwindow_edl = 0;
 365 //      vwindow_edl_shared = 0;
 366
 367         for( int i=0; i<edl->total_vwindow_edls(); ++i ) {
 368                 EDL *new_edl = new EDL(this);
 369                 new_edl->create_objects();
 370                 new_edl->copy_all(edl->get_vwindow_edl(i));
 371                 append_vwindow_edl(new_edl, 0);
 372         }
 373
 374         clips.clear();
 375         for( int i=0; i<edl->clips.size(); ++i ) add_clip(edl->clips[i]);
 376 }
 377
 378 void EDL::copy_nested(EDL *edl)
 379 {
 380         if( this == edl ) return;
 381         nested_edls.copy_nested(edl->nested_edls);
 382 }
 383
 384 void EDL::copy_assets(EDL *edl)
 385 {
 386         if( this == edl ) return;
 387
 388         if( !parent_edl ) {
 389                 assets->copy_from(edl->assets);
 390         }
 391 }
 392
 393 void EDL::copy_mixers(EDL *edl)
 394 {
 395         if( this == edl ) return;
 396         mixers.copy_from(edl->mixers);
 397 }
 398
 399 void EDL::copy_session(EDL *edl, int session_only)
 400 {
 401         if( this == edl ) return;
 402
 403         if( !session_only ) {
 404                 strcpy(this->path, edl->path);
 405                 awindow_folder = edl->awindow_folder;
 406                 folders.copy_from(&edl->folders);
 407         }
 408
 409         if( !parent_edl ) {
 410                 session->copy(edl->session);
 411         }
 412
 413         if( session_only <= 0 ) {
 414                 local_session->copy_from(edl->local_session);
 415         }
 416 }
 417
 418 int EDL::copy_assets(double start,
 419         double end,
 420         FileXML *file,
 421         int all,
 422         const char *output_path)
 423 {
 424         ArrayList<Asset*> asset_list;
 425         Track* current;
 426
 427         file->tag.set_title("ASSETS");
 428         file->append_tag();
 429         file->append_newline();
 430
 431 // Copy everything for a save
 432         if( all ) {
 433                 for( Asset *asset=assets->first; asset; asset=asset->next ) {
 434                         asset_list.append(asset);
 435                 }
 436         }
 437         else {
 438 // Copy just the ones being used.
 439                 for( current = tracks->first; current; current = NEXT ) {
 440                         if( !current->record ) continue;
 441                         current->copy_assets(start, end, &asset_list);
 442                 }
 443         }
 444
 445 // Paths relativised here
 446         for( int i=0; i<asset_list.size(); ++i ) {
 447                 asset_list[i]->write(file, 0, output_path);
 448         }
 449
 450         file->tag.set_title("/ASSETS");
 451         file->append_tag();
 452         file->append_newline();
 453         file->append_newline();
 454         return 0;
 455 }
 456
 457
 458 int EDL::copy(double start, double end, int all,
 459         FileXML *file, const char *output_path, int rewind_it)
 460 {
 461         file->tag.set_title("EDL");
 462         file->tag.set_property("VERSION", CINELERRA_VERSION);
 463 // Save path for restoration of the project title from a backup.
 464         if( this->path[0] ) file->tag.set_property("PATH", path);
 465         return copy(start, end, all,
 466                 "/EDL", file, output_path, rewind_it);
 467 }
 468 int EDL::copy(int all, FileXML *file, const char *output_path, int rewind_it)
 469 {
 470         return copy(0, tracks->total_length(), all, file, output_path, rewind_it);
 471 }
 472
 473 int EDL::copy_clip(double start, double end, int all,
 474         FileXML *file, const char *output_path, int rewind_it)
 475 {
 476         file->tag.set_title("CLIP_EDL");
 477         return copy(start, end, all,
 478                 "/CLIP_EDL", file, output_path, rewind_it);
 479 }
 480 int EDL::copy_clip(int all, FileXML *file, const char *output_path, int rewind_it)
 481 {
 482         return copy_clip(0, tracks->total_length(), all, file, output_path, rewind_it);
 483 }
 484
 485 int EDL::copy_nested_edl(double start, double end, int all,
 486         FileXML *file, const char *output_path, int rewind_it)
 487 {
 488         file->tag.set_title("NESTED_EDL");
 489         if( this->path[0] ) file->tag.set_property("PATH", path);
 490         return copy(start, end, all,
 491                 "/NESTED_EDL", file, output_path, rewind_it);
 492 }
 493 int EDL::copy_nested_edl(int all, FileXML *file, const char *output_path, int rewind_it)
 494 {
 495         return copy_nested_edl(0, tracks->total_length(), all, file, output_path, rewind_it);
 496 }
 497
 498 int EDL::copy_vwindow_edl(double start, double end, int all,
 499         FileXML *file, const char *output_path, int rewind_it)
 500 {
 501         file->tag.set_title("VWINDOW_EDL");
 502         return copy(start, end, all,
 503                 "/VWINDOW_EDL", file, output_path, rewind_it);
 504 }
 505 int EDL::copy_vwindow_edl(int all, FileXML *file, const char *output_path, int rewind_it)
 506 {
 507         return copy_vwindow_edl(0, tracks->total_length(), all, file, output_path, rewind_it);
 508 }
 509
 510
 511 int EDL::copy(double start, double end, int all,
 512         const char *closer, FileXML *file,
 513         const char *output_path, int rewind_it)
 514 {
 515         file->append_tag();
 516         file->append_newline();
 517 // Set clipboard samples only if copying to clipboard
 518         if( !all ) {
 519                 file->tag.set_title("CLIPBOARD");
 520                 file->tag.set_property("LENGTH", end - start);
 521                 file->append_tag();
 522                 file->tag.set_title("/CLIPBOARD");
 523                 file->append_tag();
 524                 file->append_newline();
 525                 file->append_newline();
 526         }
 527 //printf("EDL::copy 1\n");
 528
 529 // Sessions
 530         local_session->save_xml(file, start);
 531
 532 //printf("EDL::copy 1\n");
 533
 534 // Top level stuff.
 535 //      if(!parent_edl)
 536         {
 537 // Need to copy all this from child EDL if pasting is desired.
 538 // Session
 539                 session->save_xml(file);
 540                 session->save_video_config(file);
 541                 session->save_audio_config(file);
 542                 folders.save_xml(file);
 543
 544                 if( !parent_edl )
 545                         copy_assets(start, end, file, all, output_path);
 546
 547                 for( int i=0; i<nested_edls.size(); ++i )
 548                         nested_edls[i]->copy_nested_edl(0, tracks->total_length(), 1,
 549                                 file, output_path, 0);
 550
 551 // Clips
 552 // Don't want this if using clipboard
 553                 if( all ) {
 554                         for( int i=0; i<total_vwindow_edls(); ++i )
 555                                 get_vwindow_edl(i)->copy_vwindow_edl(1, file, output_path, 0);
 556
 557                         for( int i=0; i<clips.size(); ++i )
 558                                 clips[i]->copy_clip(1, file, output_path, 0);
 559
 560                         mixers.save(file);
 561                 }
 562
 563                 file->append_newline();
 564                 file->append_newline();
 565         }
 566
 567         labels->copy(start, end, file);
 568         tracks->copy(start, end, all, file, output_path);
 569
 570 // terminate file
 571         file->tag.set_title(closer);
 572         file->append_tag();
 573         file->append_newline();
 574
 575 // For editing operations we want to rewind it for immediate pasting.
 576 // For clips and saving to disk leave it alone.
 577         if( rewind_it ) {
 578                 file->terminate_string();
 579                 file->rewind();
 580         }
 581         return 0;
 582 }
 583
 584 void EDL::copy_indexables(EDL *edl)
 585 {
 586         for( Track *track=edl->tracks->first; track; track=track->next ) {
 587                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
 588                         if( edit->asset )
 589                                 assets->update(edit->asset);
 590                         if( edit->nested_edl )
 591                                 nested_edls.get_nested(edit->nested_edl);
 592                 }
 593         }
 594 }
 595
 596 EDL *EDL::new_nested(EDL *edl, const char *path)
 597 {
 598         EDL *nested = new EDL;  // no parent for nested edl
 599         nested->create_objects();
 600         nested->copy_session(edl);
 601         nested->set_path(path);
 602         nested->update_index(edl);
 603         nested->copy_indexables(edl);
 604         nested->tracks->copy_from(edl->tracks);
 605         nested_edls.append(nested);
 606         return nested;
 607 }
 608
 609 EDL *EDL::create_nested_clip(EDL *nested)
 610 {
 611         EDL *new_edl = new EDL(this);  // parent for clip edl
 612         new_edl->create_objects();
 613         new_edl->create_nested(nested);
 614         return new_edl;
 615 }
 616
 617 void EDL::create_nested(EDL *nested)
 618 {
 619 // Keep frame rate, sample rate, and output size unchanged.
 620 // Nest all video & audio outputs
 621         session->video_tracks = 1;
 622         session->audio_tracks = nested->session->audio_channels;
 623         create_default_tracks();
 624         insert_asset(0, nested, 0, 0, 0);
 625 }
 626
 627 void EDL::retrack()
 628 {
 629         int min_w = session->output_w, min_h = session->output_h;
 630         for( Track *track=tracks->first; track!=0; track=track->next ) {
 631                 if( track->data_type != TRACK_VIDEO ) continue;
 632                 int w = min_w, h = min_h;
 633                 for( Edit *current=track->edits->first; current!=0; current=NEXT ) {
 634                         Indexable* indexable = current->get_source();
 635                         if( !indexable ) continue;
 636                         int edit_w = indexable->get_w(), edit_h = indexable->get_h();
 637                         if( w < edit_w ) w = edit_w;
 638                         if( h < edit_h ) h = edit_h;
 639                 }
 640                 if( track->track_w == w && track->track_h == h ) continue;
 641                 ((MaskAutos*)track->automation->autos[AUTOMATION_MASK])->
 642                         translate_masks( (w - track->track_w) / 2, (h - track->track_h) / 2);
 643                 track->track_w = w;  track->track_h = h;
 644         }
 645 }
 646
 647 void EDL::rechannel()
 648 {
 649         for( Track *current=tracks->first; current; current=NEXT ) {
 650                 if( current->data_type == TRACK_AUDIO ) {
 651                         PanAutos *autos = (PanAutos*)current->automation->autos[AUTOMATION_PAN];
 652                         ((PanAuto*)autos->default_auto)->rechannel();
 653                         for( PanAuto *keyframe = (PanAuto*)autos->first;
 654                              keyframe; keyframe = (PanAuto*)keyframe->next ) {
 655                                 keyframe->rechannel();
 656                         }
 657                 }
 658         }
 659 }
 660
 661 void EDL::resample(double old_rate, double new_rate, int data_type)
 662 {
 663         for( Track *current=tracks->first; current; current=NEXT ) {
 664                 if( current->data_type == data_type ) {
 665                         current->resample(old_rate, new_rate);
 666                 }
 667         }
 668 }
 669
 670
 671 void EDL::synchronize_params(EDL *edl)
 672 {
 673         local_session->synchronize_params(edl->local_session);
 674         for( Track *this_track=tracks->first, *that_track=edl->tracks->first;
 675              this_track && that_track;
 676              this_track=this_track->next, that_track=that_track->next ) {
 677                 this_track->synchronize_params(that_track);
 678         }
 679 }
 680
 681 int EDL::trim_selection(double start,
 682         double end,
 683         int edit_labels,
 684         int edit_plugins,
 685         int edit_autos)
 686 {
 687         if( start != end ) {
 688 // clear the data
 689                 clear(0,
 690                         start,
 691                         edit_labels,
 692                         edit_plugins,
 693                         edit_autos);
 694                 clear(end - start,
 695                         tracks->total_length(),
 696                         edit_labels,
 697                         edit_plugins,
 698                         edit_autos);
 699         }
 700         return 0;
 701 }
 702
 703
 704 int EDL::equivalent(double position1, double position2)
 705 {
 706         double threshold = session->cursor_on_frames ?
 707                 0.5 / session->frame_rate : 1.0 / session->sample_rate;
 708         return fabs(position2 - position1) < threshold ? 1 : 0;
 709 }
 710
 711 double EDL::equivalent_output(EDL *edl)
 712 {
 713         double result = -1;
 714         session->equivalent_output(edl->session, &result);
 715         tracks->equivalent_output(edl->tracks, &result);
 716         return result;
 717 }
 718
 719
 720 void EDL::set_path(const char *path)
 721 {
 722         if( &this->path[0] == path ) return;
 723         strcpy(this->path, path);
 724 }
 725
 726 void EDL::set_inpoint(double position)
 727 {
 728         if( equivalent(local_session->get_inpoint(), position) &&
 729                 local_session->get_inpoint() >= 0 ) {
 730                 local_session->unset_inpoint();
 731         }
 732         else {
 733                 local_session->set_inpoint(align_to_frame(position, 0));
 734                 if( local_session->get_outpoint() <= local_session->get_inpoint() )
 735                         local_session->unset_outpoint();
 736         }
 737 }
 738
 739 void EDL::set_outpoint(double position)
 740 {
 741         if( equivalent(local_session->get_outpoint(), position) &&
 742                 local_session->get_outpoint() >= 0 ) {
 743                 local_session->unset_outpoint();
 744         }
 745         else {
 746                 local_session->set_outpoint(align_to_frame(position, 0));
 747                 if( local_session->get_inpoint() >= local_session->get_outpoint() )
 748                         local_session->unset_inpoint();
 749         }
 750 }
 751
 752 void EDL::unset_inoutpoint()
 753 {
 754         local_session->unset_inpoint();
 755         local_session->unset_outpoint();
 756 }
 757
 758 int EDL::blade(double position)
 759 {
 760         return tracks->blade(position);
 761 }
 762
 763 int EDL::clear(double start, double end,
 764         int clear_labels, int clear_plugins, int edit_autos)
 765 {
 766         if( start == end ) {
 767                 double distance = 0;
 768                 tracks->clear_handle(start,
 769                         end,
 770                         distance,
 771                         clear_labels,
 772                         clear_plugins,
 773                         edit_autos);
 774                 if( clear_labels && distance > 0 )
 775                         labels->paste_silence(start,
 776                                 start + distance);
 777         }
 778         else {
 779                 tracks->clear(start,
 780                         end,
 781                         clear_plugins,
 782                         edit_autos);
 783                 if( clear_labels )
 784                         labels->clear(start,
 785                                 end,
 786                                 1);
 787         }
 788
 789 // Need to put at beginning so a subsequent paste operation starts at the
 790 // right position.
 791         double position = local_session->get_selectionstart();
 792         local_session->set_selectionend(position);
 793         local_session->set_selectionstart(position);
 794         return 0;
 795 }
 796
 797 void EDL::modify_edithandles(double oldposition,
 798         double newposition,
 799         int currentend,
 800         int handle_mode,
 801         int edit_labels,
 802         int edit_plugins,
 803         int edit_autos)
 804 {
 805         tracks->modify_edithandles(oldposition,
 806                 newposition,
 807                 currentend,
 808                 handle_mode,
 809                 edit_labels,
 810                 edit_plugins,
 811                 edit_autos);
 812         labels->modify_handles(oldposition,
 813                 newposition,
 814                 currentend,
 815                 handle_mode,
 816                 edit_labels);
 817 }
 818
 819 void EDL::modify_pluginhandles(double oldposition,
 820         double newposition,
 821         int currentend,
 822         int handle_mode,
 823         int edit_labels,
 824         int edit_autos,
 825         Edits *trim_edits)
 826 {
 827         tracks->modify_pluginhandles(oldposition,
 828                 newposition,
 829                 currentend,
 830                 handle_mode,
 831                 edit_labels,
 832                 edit_autos,
 833                 trim_edits);
 834         optimize();
 835 }
 836
 837 void EDL::paste_silence(double start,
 838         double end,
 839         int edit_labels,
 840         int edit_plugins,
 841         int edit_autos)
 842 {
 843         if( edit_labels )
 844                 labels->paste_silence(start, end);
 845         tracks->paste_silence(start,
 846                 end,
 847                 edit_plugins,
 848                 edit_autos);
 849 }
 850
 851
 852 void EDL::remove_from_project(ArrayList<EDL*> *clips)
 853 {
 854         for( int i=0; i<clips->size(); ++i ) {
 855                 this->clips.remove_clip(clips->get(i));
 856         }
 857 }
 858
 859 void EDL::remove_from_project(ArrayList<Indexable*> *assets)
 860 {
 861 // Remove from clips
 862         if( !parent_edl )
 863                 for( int j=0; j<clips.size(); ++j ) {
 864                         clips[j]->remove_from_project(assets);
 865                 }
 866
 867 // Remove from VWindow EDLs
 868         for( int i=0; i<total_vwindow_edls(); ++i )
 869                 get_vwindow_edl(i)->remove_from_project(assets);
 870
 871         for( int i=0; i<assets->size(); ++i ) {
 872 // Remove from tracks
 873                 for( Track *track=tracks->first; track; track=track->next ) {
 874                         track->remove_asset(assets->get(i));
 875                 }
 876
 877 // Remove from assets
 878                 if( !parent_edl && assets->get(i)->is_asset ) {
 879                         this->assets->remove_asset((Asset*)assets->get(i));
 880                 }
 881                 else
 882                 if( !parent_edl && !assets->get(i)->is_asset ) {
 883                         this->nested_edls.remove_clip((EDL*)assets->get(i));
 884                 }
 885         }
 886 }
 887
 888 void EDL::update_assets(EDL *src)
 889 {
 890         for( Asset *current=src->assets->first; current; current=NEXT ) {
 891                 assets->update(current);
 892         }
 893 }
 894
 895 int EDL::get_tracks_height(Theme *theme)
 896 {
 897         int total_pixels = 0;
 898         for( Track *current=tracks->first; current; current=NEXT ) {
 899                 total_pixels += current->vertical_span(theme);
 900         }
 901         return total_pixels;
 902 }
 903
 904 int64_t EDL::get_tracks_width()
 905 {
 906         int64_t total_pixels = 0;
 907         for( Track *current=tracks->first; current; current=NEXT ) {
 908                 int64_t pixels = current->horizontal_span();
 909                 if( pixels > total_pixels ) total_pixels = pixels;
 910         }
 911 //printf("EDL::get_tracks_width %d\n", total_pixels);
 912         return total_pixels;
 913 }
 914
 915 // int EDL::calculate_output_w(int single_channel)
 916 // {
 917 //      if( single_channel ) return session->output_w;
 918 //
 919 //      int widest = 0;
 920 //      for( int i=0; i<session->video_channels; ++i )
 921 //      {
 922 //              if( session->vchannel_x[i] + session->output_w > widest ) widest = session->vchannel_x[i] + session->output_w;
 923 //      }
 924 //      return widest;
 925 // }
 926 //
 927 // int EDL::calculate_output_h(int single_channel)
 928 // {
 929 //      if( single_channel ) return session->output_h;
 930 //
 931 //      int tallest = 0;
 932 //      for( int i=0; i<session->video_channels; ++i )
 933 //      {
 934 //              if( session->vchannel_y[i] + session->output_h > tallest ) tallest = session->vchannel_y[i] + session->output_h;
 935 //      }
 936 //      return tallest;
 937 // }
 938
 939 // Get the total output size scaled to aspect ratio
 940 void EDL::calculate_conformed_dimensions(int single_channel, float &w, float &h)
 941 {
 942         if( (float)session->output_w / session->output_h > get_aspect_ratio() )
 943                 h = (w = session->output_w) / get_aspect_ratio();
 944         else
 945                 w = (h = session->output_h) * get_aspect_ratio();
 946 }
 947
 948 float EDL::get_aspect_ratio()
 949 {
 950         return session->aspect_w / session->aspect_h;
 951 }
 952
 953 int EDL::dump(FILE *fp)
 954 {
 955         if( parent_edl )
 956                 fprintf(fp,"CLIP\n");
 957         else
 958                 fprintf(fp,"EDL\n");
 959         fprintf(fp,"  clip_title: %s\n"
 960                 "  parent_edl: %p\n", local_session->clip_title, parent_edl);
 961         fprintf(fp,"  selectionstart %f\n  selectionend %f\n  loop_start %f\n  loop_end %f\n",
 962                 local_session->get_selectionstart(1),
 963                 local_session->get_selectionend(1),
 964                 local_session->loop_start,
 965                 local_session->loop_end);
 966         for( int i=0; i<TOTAL_PANES; ++i ) {
 967                 fprintf(fp,"  pane %d view_start=%jd track_start=%d\n", i,
 968                         local_session->view_start[i],
 969                         local_session->track_start[i]);
 970         }
 971
 972         if( !parent_edl ) {
 973                 fprintf(fp,"audio_channels: %d audio_tracks: %d sample_rate: %jd\n",
 974                         session->audio_channels,
 975                         session->audio_tracks,
 976                         session->sample_rate);
 977                 fprintf(fp,"  video_channels: %d\n"
 978                         "  video_tracks: %d\n"
 979                         "  frame_rate: %.2f\n"
 980                         "  frames_per_foot: %.2f\n"
 981                         "  output_w: %d\n"
 982                         "  output_h: %d\n"
 983                         "  aspect_w: %f\n"
 984                         "  aspect_h: %f\n"
 985                         "  color_model: %d\n",
 986                                 session->video_channels,
 987                                 session->video_tracks,
 988                                 session->frame_rate,
 989                                 session->frames_per_foot,
 990                                 session->output_w,
 991                                 session->output_h,
 992                                 session->aspect_w,
 993                                 session->aspect_h,
 994                                 session->color_model);
 995
 996                 fprintf(fp," CLIPS");
 997                 fprintf(fp,"  total: %d\n", clips.size());
 998                 for( int i=0; i<clips.size(); ++i ) {
 999                         fprintf(fp,"\n\n");
1000                         clips[i]->dump(fp);
1001                         fprintf(fp,"\n\n");
1002                 }
1003                 fprintf(fp," NESTED_EDLS");
1004                 fprintf(fp,"  total: %d\n", nested_edls.size());
1005                 for( int i=0; i<nested_edls.size(); ++i )
1006                         fprintf(fp,"   %s\n", nested_edls[i]->path);
1007
1008                 fprintf(fp," VWINDOW EDLS");
1009                 fprintf(fp,"  total: %d\n", total_vwindow_edls());
1010
1011                 for( int i=0; i<total_vwindow_edls(); ++i ) {
1012                         fprintf(fp,"   %s\n", get_vwindow_edl(i)->local_session->clip_title);
1013                 }
1014
1015                 fprintf(fp," ASSETS\n");
1016                 assets->dump(fp);
1017         }
1018         fprintf(fp," LABELS\n");
1019         labels->dump(fp);
1020         fprintf(fp," TRACKS\n");
1021         tracks->dump(fp);
1022 //printf("EDL::dump 2\n");
1023         return 0;
1024 }
1025
1026 EDL* EDL::add_clip(EDL *edl)
1027 {
1028 // Copy argument.  New edls are deleted from MWindow::load_filenames.
1029         EDL *new_edl = new EDL(this);
1030         new_edl->create_objects();
1031         new_edl->copy_all(edl);
1032         clips.append(new_edl);
1033         return new_edl;
1034 }
1035
1036 void EDL::insert_asset(Asset *asset,
1037         EDL *nested_edl,
1038         double position,
1039         Track *first_track,
1040         RecordLabels *labels)
1041 {
1042 // Insert asset into asset table
1043         Asset *new_asset = 0;
1044         EDL *new_nested_edl = 0;
1045
1046         if( asset ) new_asset = assets->update(asset);
1047         if( nested_edl ) new_nested_edl = nested_edls.get_nested(nested_edl);
1048
1049 // Paste video
1050         int vtrack = 0;
1051         Track *current = first_track ? first_track : tracks->first;
1052
1053
1054 // Fix length of single frame
1055         double length = 0.;
1056         int layers = 0;
1057         int channels = 0;
1058
1059         if( new_nested_edl ) {
1060                 length = new_nested_edl->tracks->total_length();
1061                 layers = 1;
1062                 channels = new_nested_edl->session->audio_channels;
1063         }
1064
1065         if( new_asset ) {
1066 // Insert 1 frame for undefined length
1067                 if( new_asset->video_length < 0 ) {
1068                         length = session->si_useduration ?
1069                                 session->si_duration :
1070                                 1.0 / session->frame_rate;
1071                 }
1072                 else {
1073                         length = new_asset->frame_rate > 0 ?
1074                                 (double)new_asset->video_length / new_asset->frame_rate :
1075                                 1.0 / session->frame_rate;
1076                 }
1077                 layers = new_asset->layers;
1078                 channels = new_asset->channels;
1079         }
1080
1081         for( ; current && vtrack<layers; current=NEXT ) {
1082                 if( !current->record || current->data_type != TRACK_VIDEO ) continue;
1083                 current->insert_asset(new_asset, new_nested_edl,
1084                         length, position, vtrack++);
1085         }
1086
1087         int atrack = 0;
1088         if( new_asset ) {
1089                 if( new_asset->audio_length < 0 ) {
1090 // Insert 1 frame for undefined length & video
1091                         if( new_asset->video_data )
1092                                 length = (double)1.0 / new_asset->frame_rate;
1093                         else
1094 // Insert 1 second for undefined length & no video
1095                                 length = 1.0;
1096                 }
1097                 else
1098                         length = (double)new_asset->audio_length /
1099                                         new_asset->sample_rate;
1100         }
1101
1102         current = tracks->first;
1103         for( ; current && atrack < channels; current=NEXT ) {
1104                 if( !current->record || current->data_type != TRACK_AUDIO ) continue;
1105                 current->insert_asset(new_asset, new_nested_edl,
1106                         length, position, atrack++);
1107         }
1108
1109 // Insert labels from a recording window.
1110         if( labels ) {
1111                 for( RecordLabel *label=labels->first; label; label=label->next ) {
1112                         this->labels->toggle_label(label->position, label->position);
1113                 }
1114         }
1115 }
1116
1117
1118
1119 void EDL::set_index_file(Indexable *indexable)
1120 {
1121         if( indexable->is_asset )
1122                 assets->update_index((Asset*)indexable);
1123         else
1124                 nested_edls.update_index((EDL*)indexable);
1125 }
1126
1127 void EDL::optimize()
1128 {
1129 //printf("EDL::optimize 1\n");
1130         double length = tracks->total_length();
1131         double preview_start = local_session->preview_start;
1132         double preview_end = local_session->preview_end;
1133         if( preview_end < 0 || preview_end > length )
1134                 preview_end = length;
1135         if( preview_start == 0 && preview_end >= length )
1136                 local_session->preview_end = -1;
1137         if( preview_start > preview_end )
1138                 local_session->preview_start = preview_end;
1139         for( Track *current=tracks->first; current; current=NEXT )
1140                 current->optimize();
1141 }
1142
1143 int EDL::next_id()
1144 {
1145         static Mutex id_lock;
1146         id_lock.lock("EDL::next_id");
1147         int result = EDLSession::current_id++;
1148         id_lock.unlock();
1149         return result;
1150 }
1151
1152 void EDL::get_shared_plugins(Track *source,
1153         ArrayList<SharedLocation*> *plugin_locations,
1154         int omit_recordable,
1155         int data_type)
1156 {
1157         for( Track *track=tracks->first; track; track=track->next ) {
1158                 if( track->record && omit_recordable ) continue;
1159                 if( track == source || track->data_type != data_type ) continue;
1160                 for( int i=0; i<track->plugin_set.size(); ++i ) {
1161                         Plugin *plugin = track->get_current_plugin(
1162                                 local_session->get_selectionstart(1),
1163                                 i, PLAY_FORWARD, 1, 0);
1164                         if( plugin && plugin->plugin_type != PLUGIN_STANDALONE ) continue;
1165                         plugin_locations->append(new SharedLocation(tracks->number_of(track), i));
1166                 }
1167         }
1168 }
1169
1170 void EDL::get_shared_tracks(Track *track,
1171         ArrayList<SharedLocation*> *module_locations,
1172         int omit_recordable, int data_type)
1173 {
1174         for( Track *current=tracks->first; current; current=NEXT ) {
1175                 if( omit_recordable && current->record ) continue;
1176                 if( current == track || current->data_type != data_type ) continue;
1177                 module_locations->append(new SharedLocation(tracks->number_of(current), 0));
1178         }
1179 }
1180
1181 // aligned frame time
1182 double EDL::frame_align(double position, int round)
1183 {
1184         double frame_pos = position * session->frame_rate;
1185         frame_pos = (int64_t)(frame_pos + (round ? 0.5 : 1e-6));
1186         position = frame_pos / session->frame_rate;
1187         return position;
1188 }
1189
1190 // Convert position to frames if alignment is enabled.
1191 double EDL::align_to_frame(double position, int round)
1192 {
1193         if( session->cursor_on_frames )
1194                 position = frame_align(position, round);
1195         return position;
1196 }
1197
1198
1199 BinFolder *EDL::get_folder(int no)
1200 {
1201         for( int i=0; i<folders.size(); ++i ) {
1202                 BinFolder *fp = folders[i];
1203                 if( no == fp->awindow_folder ) return fp;
1204         }
1205         return 0;
1206 }
1207
1208 int EDL::get_folder_number(const char *title)
1209 {
1210         for( int i=0; i<AWINDOW_FOLDERS; ++i ) {
1211                 if( !strcmp(title, AWindowGUI::folder_names[i]) )
1212                         return i;
1213         }
1214         for( int i=0; i<folders.size(); ++i ) {
1215                 if( !strcmp(title, folders[i]->title) )
1216                         return folders[i]->awindow_folder;
1217         }
1218         return AW_NO_FOLDER;
1219 }
1220
1221 const char *EDL::get_folder_name(int no)
1222 {
1223         if( no >= 0 && no<AWINDOW_FOLDERS )
1224                 return AWindowGUI::folder_names[no];
1225         BinFolder *fp = get_folder(no);
1226         return !fp ? "" : fp->title;
1227 }
1228
1229 int EDL::new_folder(const char *title, int is_clips)
1230 {
1231         if( !title[0] ) return 1;
1232         int ret = get_folder_number(title);
1233         if( ret >= 0 ) return 1;
1234         int idx = AWINDOW_FOLDERS;
1235         for( int i=0; i<folders.size(); ++i ) {
1236                 BinFolder *fp = folders[i];
1237                 int no = fp->awindow_folder;
1238                 if( no >= idx ) idx = no+1;
1239         }
1240         folders.append(new BinFolder(idx, is_clips, title));
1241         return 0;
1242 }
1243
1244 int EDL::delete_folder(const char *title)
1245 {
1246         int k = folders.size();
1247         while( --k >= 0 && strcmp(title, folders[k]->title) );
1248         if( k >= 0 )
1249                 folders.remove_object_number(k);
1250         return k;
1251 }
1252
1253 int EDL::get_use_vconsole(VEdit* *playable_edit,
1254         int64_t position, int direction, PlayableTracks *playable_tracks)
1255 {
1256         int share_playable_tracks = 1;
1257         int result = 0;
1258         VTrack *playable_track = 0;
1259         const int debug = 0;
1260         *playable_edit = 0;
1261
1262 // Calculate playable tracks when being called as a nested EDL
1263         if( !playable_tracks ) {
1264                 share_playable_tracks = 0;
1265                 playable_tracks = new PlayableTracks(this,
1266                         position, direction, TRACK_VIDEO, 1);
1267         }
1268
1269
1270 // Total number of playable tracks is 1
1271         if( playable_tracks->size() != 1 ) {
1272                 result = 1;
1273         }
1274         else {
1275                 playable_track = (VTrack*)playable_tracks->get(0);
1276         }
1277
1278 // Don't need playable tracks anymore
1279         if( !share_playable_tracks ) {
1280                 delete playable_tracks;
1281         }
1282
1283 if( debug ) printf("EDL::get_use_vconsole %d playable_tracks->size()=%d\n",
1284  __LINE__, playable_tracks->size());
1285         if( result ) return 1;
1286
1287
1288 // Test mutual conditions between direct copy rendering and this.
1289         if( !playable_track->direct_copy_possible(position,
1290                 direction,
1291                 1) )
1292                 return 1;
1293 if( debug ) printf("EDL::get_use_vconsole %d\n", __LINE__);
1294
1295         *playable_edit = (VEdit*)playable_track->edits->editof(position,
1296                 direction, 0);
1297 // No edit at current location
1298         if( !*playable_edit ) return 1;
1299 if( debug ) printf("EDL::get_use_vconsole %d\n", __LINE__);
1300
1301
1302 // Edit is nested EDL
1303         if( (*playable_edit)->nested_edl ) {
1304 // Test nested EDL
1305                 EDL *nested_edl = (*playable_edit)->nested_edl;
1306                 int64_t nested_position = (int64_t)((position -
1307                                 (*playable_edit)->startproject +
1308                                 (*playable_edit)->startsource) *
1309                         nested_edl->session->frame_rate /
1310                         session->frame_rate);
1311
1312
1313                 VEdit *playable_edit_temp = 0;
1314                 if( session->output_w != nested_edl->session->output_w ||
1315                         session->output_h != nested_edl->session->output_h ||
1316                         nested_edl->get_use_vconsole(&playable_edit_temp,
1317                                 nested_position,
1318                                 direction,
1319                                 0) )
1320                         return 1;
1321
1322                 return 0;
1323         }
1324
1325 if( debug ) printf("EDL::get_use_vconsole %d\n", __LINE__);
1326 // Edit is not a nested EDL
1327         Asset *asset = (*playable_edit)->asset;
1328 // Edit is silence
1329         if( !asset ) return 1;
1330 if( debug ) printf("EDL::get_use_vconsole %d\n", __LINE__);
1331
1332 // Asset and output device must have the same dimensions
1333         if( asset->width != session->output_w ||
1334             asset->height != session->output_h )
1335                 return 1;
1336
1337
1338 if( debug ) printf("EDL::get_use_vconsole %d\n", __LINE__);
1339 // Asset and output device must have same resulting de-interlacing method
1340         if( ilaceautofixmethod2(session->interlace_mode,
1341             asset->interlace_autofixoption, asset->interlace_mode,
1342             asset->interlace_fixmethod) != ILACE_FIXMETHOD_NONE )
1343                 return 1;
1344
1345 // If we get here the frame is going to be directly copied.  Whether it is
1346 // decompressed in hardware depends on the colormodel.
1347         return 0;
1348 }
1349
1350
1351 // For Indexable
1352 int EDL::get_audio_channels()
1353 {
1354         return session->audio_channels;
1355 }
1356
1357 int EDL::get_sample_rate()
1358 {
1359         return session->sample_rate;
1360 }
1361
1362 int64_t EDL::get_audio_samples()
1363 {
1364         return (int64_t)(tracks->total_length() *
1365                 session->sample_rate);
1366 }
1367
1368 int EDL::have_audio()
1369 {
1370         return 1;
1371 }
1372
1373 int EDL::have_video()
1374 {
1375         return 1;
1376 }
1377
1378
1379 int EDL::get_w()
1380 {
1381         return session->output_w;
1382 }
1383
1384 int EDL::get_h()
1385 {
1386         return session->output_h;
1387 }
1388
1389 double EDL::get_frame_rate()
1390 {
1391         return session->frame_rate;
1392 }
1393
1394 int EDL::get_video_layers()
1395 {
1396         return 1;
1397 }
1398
1399 int64_t EDL::get_video_frames()
1400 {
1401         return (int64_t)(tracks->total_length() *
1402                 session->frame_rate);
1403 }
1404
1405 void EDL::remove_vwindow_edls()
1406 {
1407         for( int i=0; i<total_vwindow_edls(); ++i ) {
1408                 get_vwindow_edl(i)->remove_user();
1409         }
1410         vwindow_edls.remove_all();
1411 }
1412
1413 void EDL::remove_vwindow_edl(EDL *edl)
1414 {
1415         if( vwindow_edls.number_of(edl) >= 0 ) {
1416                 edl->remove_user();
1417                 vwindow_edls.remove(edl);
1418         }
1419 }
1420
1421
1422 EDL* EDL::get_vwindow_edl(int number)
1423 {
1424         return vwindow_edls.get(number);
1425 }
1426
1427 int EDL::total_vwindow_edls()
1428 {
1429         return vwindow_edls.size();
1430 }
1431
1432 void EDL::append_vwindow_edl(EDL *edl, int increase_counter)
1433 {
1434         if(vwindow_edls.number_of(edl) >= 0) return;
1435
1436         if(increase_counter) edl->add_user();
1437         vwindow_edls.append(edl);
1438 }
1439
1440
1441 double EDL::next_edit(double position)
1442 {
1443         Units::fix_double(&position);
1444         double new_position = tracks->total_length();
1445
1446         double max_rate = get_frame_rate();
1447         int sample_rate = get_sample_rate();
1448         if( sample_rate > max_rate ) max_rate = sample_rate;
1449         double min_movement = max_rate > 0 ? 1. / max_rate : 1e-6;
1450
1451 // Test for edit handles after position
1452         for( Track *track=tracks->first; track; track=track->next ) {
1453                 if( !track->record ) continue;
1454                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1455                         double edit_end = track->from_units(edit->startproject + edit->length);
1456                         Units::fix_double(&edit_end);
1457                         if( fabs(edit_end-position) < min_movement ) continue;
1458                         if( edit_end > position && edit_end < new_position )
1459                                 new_position = edit_end;
1460                 }
1461         }
1462         return new_position;
1463 }
1464
1465 double EDL::prev_edit(double position)
1466 {
1467         Units::fix_double(&position);
1468         double new_position = -1;
1469
1470         double max_rate = get_frame_rate();
1471         int sample_rate = get_sample_rate();
1472         if( sample_rate > max_rate ) max_rate = sample_rate;
1473         double min_movement = max_rate > 0 ? 1. / max_rate : 1e-6;
1474
1475 // Test for edit handles before cursor position
1476         for( Track *track=tracks->first; track; track=track->next ) {
1477                 if( !track->record ) continue;
1478                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1479                         double edit_end = track->from_units(edit->startproject);
1480                         Units::fix_double(&edit_end);
1481                         if( fabs(edit_end-position) < min_movement ) continue;
1482                         if( edit_end < position && edit_end > new_position )
1483                                 new_position = edit_end;
1484                 }
1485         }
1486         return new_position;
1487 }
1488
1489 void EDL::rescale_proxy(int orig_scale, int new_scale)
1490 {
1491         if( orig_scale == new_scale ) return;
1492 // project size
1493         float orig_w = (float)session->output_w * orig_scale;
1494         float orig_h = (float)session->output_h * orig_scale;
1495         if( !parent_edl ) {
1496                 session->output_w = Units::round(orig_w / new_scale);
1497                 session->output_h = Units::round(orig_h / new_scale);
1498         }
1499
1500 // track sizes
1501         for( Track *track=tracks->first; track; track=track->next ) {
1502                 if( track->data_type != TRACK_VIDEO ) continue;
1503                 orig_w = (float)track->track_w * orig_scale;
1504                 orig_h = (float)track->track_h * orig_scale;
1505                 track->track_w = Units::round(orig_w / new_scale);
1506                 track->track_h = Units::round(orig_h / new_scale);
1507                 ((MaskAutos*)track->automation->autos[AUTOMATION_MASK])->
1508                         set_proxy(orig_scale, new_scale);
1509                 ((FloatAutos*)track->automation->autos[AUTOMATION_CAMERA_X])->
1510                         set_proxy(orig_scale, new_scale);
1511                 ((FloatAutos*)track->automation->autos[AUTOMATION_CAMERA_Y])->
1512                         set_proxy(orig_scale, new_scale);
1513                 ((FloatAutos*)track->automation->autos[AUTOMATION_PROJECTOR_X])->
1514                         set_proxy(orig_scale, new_scale);
1515                 ((FloatAutos*)track->automation->autos[AUTOMATION_PROJECTOR_Y])->
1516                         set_proxy(orig_scale, new_scale);
1517         }
1518 }
1519
1520 void EDL::set_proxy(int new_scale, int use_scaler,
1521         ArrayList<Indexable*> *orig_assets, ArrayList<Indexable*> *proxy_assets)
1522 {
1523         int orig_scale = session->proxy_scale;
1524         int orig_use_scaler = session->proxy_use_scaler;
1525
1526 // rescale to full size asset in read_frame
1527         session->proxy_scale = new_scale;
1528         session->proxy_use_scaler = use_scaler;
1529
1530         if( use_scaler ) {
1531                 for( int i=0; i<proxy_assets->size(); ++i ) {
1532                         Asset *proxy_asset = (Asset *)proxy_assets->get(i);
1533                         proxy_asset->width = orig_assets->get(i)->get_w();
1534                         proxy_asset->height = orig_assets->get(i)->get_h();
1535                 }
1536                 new_scale = 1;
1537         }
1538
1539         if( !orig_use_scaler )
1540                 rescale_proxy(orig_scale, new_scale);
1541
1542 // change original assets to proxy assets
1543         int awindow_folder = use_scaler || new_scale != 1 ? AW_PROXY_FOLDER : AW_MEDIA_FOLDER;
1544         for( int i=0,n=proxy_assets->size(); i<n; ++i ) {
1545                 const char *orig_path = orig_assets->get(i)->path;
1546                 Indexable *proxy_idxbl = proxy_assets->get(i);
1547                 proxy_idxbl->awindow_folder = awindow_folder;
1548                 Asset *proxy_asset = proxy_idxbl->is_asset ? assets->update((Asset *)proxy_idxbl) : 0;
1549                 if( proxy_asset && proxy_idxbl ) {
1550                         proxy_asset->width = proxy_idxbl->get_w();
1551                         proxy_asset->height = proxy_idxbl->get_h();
1552                 }
1553                 EDL *proxy_edl = !proxy_idxbl->is_asset ? (EDL *)proxy_idxbl : 0;
1554 // replace track contents
1555                 for( Track *track=tracks->first; track; track=track->next ) {
1556                         if( track->data_type != TRACK_VIDEO ) continue;
1557                         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1558                                 Indexable *idxbl = (Indexable *)edit->asset;
1559                                 if( !idxbl ) idxbl = (Indexable *)edit->nested_edl;
1560                                 if( !idxbl ) continue;
1561                                 if( strcmp(idxbl->path, orig_path) ) continue;
1562                                 edit->asset = proxy_asset;
1563                                 edit->nested_edl = proxy_edl;
1564                         }
1565                 }
1566                 for( int j=0,m=clips.size(); j<m; ++j ) {
1567                         EDL *clip = clips[j];
1568                         int has_proxy = 0;
1569                         for( Track *track=clip->tracks->first; track; track=track->next ) {
1570                                 if( track->data_type != TRACK_VIDEO ) continue;
1571                                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1572                                         Indexable *idxbl = (Indexable *)edit->asset;
1573                                         if( !idxbl ) idxbl = (Indexable *)edit->nested_edl;
1574                                         if( !idxbl ) continue;
1575                                         if( strcmp(idxbl->path, orig_path) ) continue;
1576                                         edit->asset = proxy_asset;
1577                                         edit->nested_edl = proxy_edl;
1578                                         has_proxy = 1;
1579                                 }
1580                         }
1581                         if( has_proxy && !orig_use_scaler )
1582                                 clip->rescale_proxy(orig_scale, new_scale);
1583                 }
1584         }
1585 }
1586
1587 void EDL::add_proxy(int use_scaler,
1588         ArrayList<Indexable*> *orig_assets, ArrayList<Indexable*> *proxy_assets)
1589 {
1590         if( use_scaler ) {
1591                 for( int i=0,n=proxy_assets->size(); i<n; ++i ) {
1592                         Asset *proxy_asset = (Asset *)proxy_assets->get(i);
1593                         proxy_asset->width = orig_assets->get(i)->get_w();
1594                         proxy_asset->height = orig_assets->get(i)->get_h();
1595                 }
1596         }
1597
1598 // change original assets to proxy assets
1599         for( int i=0,n=proxy_assets->size(); i<n; ++i ) {
1600                 Asset *proxy_asset = assets->update((Asset *)proxy_assets->get(i));
1601                 proxy_asset->awindow_folder = AW_PROXY_FOLDER;
1602 // replace track contents
1603                 for( Track *track=tracks->first; track; track=track->next ) {
1604                         if( track->data_type != TRACK_VIDEO ) continue;
1605                         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1606                                 if( !edit->asset ) continue;
1607                                 if( !strcmp(edit->asset->path, orig_assets->get(i)->path) ) {
1608                                         edit->asset = proxy_asset;
1609                                 }
1610                         }
1611                 }
1612         }
1613 }
1614
1615 Asset *EDL::get_proxy_asset()
1616 {
1617         return awindow_folder == AW_PROXY_FOLDER ?
1618                 tracks->first->edits->first->asset : 0;
1619 }
1620
1621 double EDL::get_cursor_position(int cursor_x, int pane_no)
1622 {
1623         return (double)cursor_x * local_session->zoom_sample / session->sample_rate +
1624                 (double)local_session->view_start[pane_no] *
1625                         local_session->zoom_sample / session->sample_rate;
1626 }
1627