bac9abd68050bed5c1f8908fa9e92e239f8e4b7d
[goodguy/history.git] / cinelerra-5.1 / cinelerra / track.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 "asset.h"
22 #include "autoconf.h"
23 #include "automation.h"
24 #include "bcsignals.h"
25 #include "clip.h"
26 #include "edit.h"
27 #include "edits.h"
28 #include "edl.h"
29 #include "edlsession.h"
30 #include "filexml.h"
31 #include "floatauto.h"
32 #include "floatautos.h"
33 #include "keyframe.h"
34 #include "labels.h"
35 #include "localsession.h"
36 #include "module.h"
37 #include "patch.h"
38 #include "patchbay.h"
39 #include "plugin.h"
40 #include "pluginset.h"
41 #include "mainsession.h"
42 #include "theme.h"
43 #include "intautos.h"
44 #include "track.h"
45 #include "trackcanvas.h"
46 #include "tracks.h"
47 #include "transition.h"
48 #include "transportque.inc"
49 #include "vedit.h"
50 #include "vframe.h"
51 #include <string.h>
52
53
54 Track::Track(EDL *edl, Tracks *tracks) : ListItem<Track>()
55 {
56         this->edl = edl;
57         this->tracks = tracks;
58         y_pixel = 0;
59         expand_view = 0;
60         draw = 1;
61         gang = 1;
62         title[0] = 0;
63         record = 1;
64         play = 1;
65         nudge = 0;
66         track_w = edl->session->output_w;
67         track_h = edl->session->output_h;
68         id = EDL::next_id();
69         mixer_id = -1;
70 }
71
72 Track::~Track()
73 {
74         delete automation;
75         delete edits;
76         plugin_set.remove_all_objects();
77 }
78
79 void Track::create_objects()
80 {
81 }
82
83
84 int Track::copy_settings(Track *track)
85 {
86         this->expand_view = track->expand_view;
87         this->draw = track->draw;
88         this->gang = track->gang;
89         this->record = track->record;
90         this->nudge = track->nudge;
91         this->mixer_id = track->mixer_id;
92         this->play = track->play;
93         this->track_w = track->track_w;
94         this->track_h = track->track_h;
95         strcpy(this->title, track->title);
96         return 0;
97 }
98
99 int Track::get_id()
100 {
101         return id;
102 }
103
104
105 int Track::load_defaults(BC_Hash *defaults)
106 {
107         return 0;
108 }
109
110 void Track::equivalent_output(Track *track, double *result)
111 {
112         if(data_type != track->data_type ||
113                 track_w != track->track_w ||
114                 track_h != track->track_h ||
115                 play != track->play ||
116                 nudge != track->nudge)
117                 *result = 0;
118
119 // Convert result to track units
120         int64_t result2 = -1;
121         automation->equivalent_output(track->automation, &result2);
122         edits->equivalent_output(track->edits, &result2);
123
124         int plugin_sets = MIN(plugin_set.total, track->plugin_set.total);
125 // Test existing plugin sets
126         for(int i = 0; i < plugin_sets; i++)
127         {
128                 plugin_set.values[i]->equivalent_output(
129                         track->plugin_set.values[i],
130                         &result2);
131         }
132
133 // New EDL has more plugin sets.  Get starting plugin in new plugin sets
134         for(int i = plugin_sets; i < plugin_set.total; i++)
135         {
136                 Plugin *current = plugin_set.values[i]->get_first_plugin();
137                 if(current)
138                 {
139                         if(result2 < 0 || current->startproject < result2)
140                                 result2 = current->startproject;
141                 }
142         }
143
144 // New EDL has fewer plugin sets.  Get starting plugin in old plugin set
145         for(int i = plugin_sets; i < track->plugin_set.total; i++)
146         {
147                 Plugin *current = track->plugin_set.values[i]->get_first_plugin();
148                 if(current)
149                 {
150                         if(result2 < 0 || current->startproject < result2)
151                                 result2 = current->startproject;
152                 }
153         }
154
155 // Number of plugin sets differs but somehow we didn't find the start of the
156 // change.  Assume 0
157         if(track->plugin_set.total != plugin_set.total && result2 < 0)
158                 result2 = 0;
159
160         if(result2 >= 0 &&
161                 (*result < 0 || from_units(result2) < *result))
162                 *result = from_units(result2);
163 }
164
165
166 int Track::is_synthesis(int64_t position,
167         int direction)
168 {
169         int is_synthesis = 0;
170         for(int i = 0; i < plugin_set.total; i++)
171         {
172                 Plugin *plugin = get_current_plugin(position,
173                         i,
174                         direction,
175                         0,
176                         0);
177                 if(plugin)
178                 {
179 // Assume data from a shared track is synthesized
180                         if(plugin->plugin_type == PLUGIN_SHAREDMODULE)
181                                 is_synthesis = 1;
182                         else
183                                 is_synthesis = plugin->is_synthesis(position,
184                                         direction);
185
186 //printf("Track::is_synthesis %d %d\n", __LINE__, is_synthesis);
187                         if(is_synthesis) break;
188                 }
189         }
190         return is_synthesis;
191 }
192
193 void Track::copy_from(Track *track)
194 {
195         copy_settings(track);
196         edits->copy_from(track->edits);
197         for(int i = 0; i < this->plugin_set.total; i++)
198                 delete this->plugin_set.values[i];
199         this->plugin_set.remove_all_objects();
200
201         for(int i = 0; i < track->plugin_set.total; i++)
202         {
203                 PluginSet *new_plugin_set = plugin_set.append(new PluginSet(edl, this));
204                 new_plugin_set->copy_from(track->plugin_set.values[i]);
205         }
206         automation->copy_from(track->automation);
207         this->track_w = track->track_w;
208         this->track_h = track->track_h;
209 }
210
211 Track& Track::operator=(Track& track)
212 {
213 printf("Track::operator= 1\n");
214         copy_from(&track);
215         return *this;
216 }
217
218 int Track::vertical_span(Theme *theme)
219 {
220         int result = 0;
221         if( show_titles() )
222                 result += theme->get_image("title_bg_data")->get_h();
223         if( show_assets() )
224                 result += edl->local_session->zoom_track;
225         if( expand_view )
226                 result += plugin_set.total * theme->get_image("plugin_bg_data")->get_h();
227         result = MAX(result, theme->title_h);
228         return result;
229 }
230
231 double Track::get_length()
232 {
233         double total_length = 0;
234         double length = 0;
235
236 // Test edits
237         if(edits->last)
238         {
239                 length = from_units(edits->last->startproject + edits->last->length);
240                 if(length > total_length) total_length = length;
241         }
242
243 // Test plugins
244         for(int i = 0; i < plugin_set.total; i++)
245         {
246                 if( !plugin_set.values[i]->last ) continue;
247                 length = from_units(plugin_set.values[i]->last->startproject +
248                         plugin_set.values[i]->last->length);
249                 if(length > total_length) total_length = length;
250         }
251
252 // Test keyframes
253         length = from_units(automation->get_length());
254         if(length > total_length) total_length = length;
255
256
257         return total_length;
258 }
259
260 int Track::has_speed()
261 {
262         FloatAutos *autos = (FloatAutos*)automation->autos[AUTOMATION_SPEED];
263         if(autos)
264         {
265                 if(autos->first)
266                 {
267                         for(FloatAuto *current = (FloatAuto*)autos->first;
268                                 current;
269                                 current = (FloatAuto*)current->next)
270                         {
271                                 if(!EQUIV(current->get_value(), 1.0) ||
272                                         !EQUIV(current->get_control_in_value(), 0.0) ||
273                                         !EQUIV(current->get_control_out_value(), 0.0))
274                                 {
275                                         return 1;
276                                 }
277                         }
278                 }
279         }
280
281         return 0;
282 }
283
284 int Track::show_assets()
285 {
286         return expand_view || edl->session->show_assets ? 1 : 0;
287 }
288
289 int Track::show_titles()
290 {
291         return expand_view || edl->session->show_titles ? 1 : 0;
292 }
293
294 int Track::show_transitions()
295 {
296         return expand_view || edl->session->auto_conf->transitions ? 1 : 0;
297 }
298
299 void Track::get_source_dimensions(double position, int &w, int &h)
300 {
301         int64_t native_position = to_units(position, 0);
302         for(Edit *current = edits->first; current; current = NEXT)
303         {
304                 if(current->startproject <= native_position &&
305                         current->startproject + current->length > native_position &&
306                         current->asset)
307                 {
308                         w = current->asset->width;
309                         h = current->asset->height;
310                         return;
311                 }
312         }
313 }
314
315
316 int64_t Track::horizontal_span()
317 {
318         return (int64_t)(get_length() *
319                 edl->session->sample_rate /
320                 edl->local_session->zoom_sample +
321                 0.5);
322 }
323
324
325 int Track::load(FileXML *file, int track_offset, uint32_t load_flags)
326 {
327         int result = 0;
328         int current_plugin = 0;
329
330
331         record = file->tag.get_property("RECORD", record);
332         play = file->tag.get_property("PLAY", play);
333         gang = file->tag.get_property("GANG", gang);
334         draw = file->tag.get_property("DRAW", draw);
335         nudge = file->tag.get_property("NUDGE", nudge);
336         mixer_id = file->tag.get_property("MIXER_ID", mixer_id);
337         expand_view = file->tag.get_property("EXPAND", expand_view);
338         track_w = file->tag.get_property("TRACK_W", track_w);
339         track_h = file->tag.get_property("TRACK_H", track_h);
340
341         load_header(file, load_flags);
342
343         do{
344                 result = file->read_tag();
345
346                 if(!result)
347                 {
348                         if(file->tag.title_is("/TRACK"))
349                         {
350                                 result = 1;
351                         }
352                         else
353                         if(file->tag.title_is("TITLE"))
354                         {
355                                 XMLBuffer data;
356                                 file->read_text_until("/TITLE", &data);
357                                 memset(title, 0, sizeof(title));
358                                 strncpy(title, data.cstr(), sizeof(title)-1);
359                         }
360                         else
361                         if(load_flags && automation->load(file)
362                         /* strstr(file->tag.get_title(), "AUTOS") */)
363                         {
364                                 ;
365                         }
366                         else
367                         if(file->tag.title_is("EDITS"))
368                         {
369                                 if(load_flags & LOAD_EDITS)
370                                         edits->load(file, track_offset);
371                                 else
372                                         result = file->skip_tag();
373                         }
374                         else
375                         if(file->tag.title_is("PLUGINSET"))
376                         {
377                                 if(load_flags & LOAD_EDITS)
378                                 {
379                                         PluginSet *plugin_set = new PluginSet(edl, this);
380                                         this->plugin_set.append(plugin_set);
381                                         plugin_set->load(file, load_flags);
382                                 }
383                                 else
384                                 if(load_flags & LOAD_AUTOMATION)
385                                 {
386                                         if(current_plugin < this->plugin_set.total)
387                                         {
388                                                 PluginSet *plugin_set = this->plugin_set.values[current_plugin];
389                                                 plugin_set->load(file, load_flags);
390                                                 current_plugin++;
391                                         }
392                                 }
393                                 else
394                                         result = file->skip_tag();
395                         }
396                         else
397                                 load_derived(file, load_flags);
398                 }
399         }while(!result);
400
401
402
403         return 0;
404 }
405
406 void Track::insert_asset(Asset *asset,
407         EDL *nested_edl,
408         double length,
409         double position,
410         int track_number)
411 {
412         edits->insert_asset(asset,
413                 nested_edl,
414                 to_units(length, 1),
415                 to_units(position, 0),
416                 track_number);
417 }
418
419 // Insert data
420
421 // Default keyframes: We don't replace default keyframes in pasting but
422 // when inserting the first EDL of a load operation we need to replace
423 // the default keyframes.
424
425 // Plugins:  This is an arbitrary behavior
426 //
427 // 1) No plugin in source track: Paste silence into destination
428 // plugin sets.
429 // 2) Plugin in source track: plugin in source track is inserted into
430 // existing destination track plugin sets, new sets being added when
431 // necessary.
432
433 void Track::insert_track(Track *track,
434         double position,
435         int replace_default,
436         int edit_plugins,
437         int edit_autos,
438         double edl_length)
439 {
440 // Calculate minimum length of data to pad.
441         int64_t min_length = to_units(
442                 MAX(edl_length, track->get_length()),
443                 1);
444 //printf("Track::insert_track %d %s %jd\n", __LINE__, title, min_length);
445
446 // Decide whether to copy settings based on load_mode
447         if(replace_default) copy_settings(track);
448
449         edits->insert_edits(track->edits,
450                 to_units(position, 0),
451                 min_length,
452                 edit_autos);
453
454         if(edit_plugins)
455                 insert_plugin_set(track,
456                         to_units(position, 0),
457                         min_length,
458                         edit_autos);
459
460         if(edit_autos)
461                 automation->insert_track(track->automation,
462                         to_units(position, 0),
463                         min_length,
464                         replace_default);
465
466         optimize();
467
468 }
469
470 // Called by insert_track
471 void Track::insert_plugin_set(Track *track,
472         int64_t position,
473         int64_t min_length,
474         int edit_autos)
475 {
476 // Extend plugins if no incoming plugins
477         if(!track->plugin_set.total)
478         {
479                 shift_effects(position,
480                         min_length,
481                         edit_autos);
482         }
483         else
484         for(int i = 0; i < track->plugin_set.total; i++)
485         {
486                 if(i >= plugin_set.total)
487                         plugin_set.append(new PluginSet(edl, this));
488
489                 plugin_set.values[i]->insert_edits(track->plugin_set.values[i],
490                         position,
491                         min_length,
492                         edit_autos);
493         }
494 }
495
496
497 Plugin* Track::insert_effect(const char *title,
498                 SharedLocation *shared_location,
499                 KeyFrame *default_keyframe,
500                 PluginSet *plugin_set,
501                 double start,
502                 double length,
503                 int plugin_type)
504 {
505         if(!plugin_set)
506         {
507                 plugin_set = new PluginSet(edl, this);
508                 this->plugin_set.append(plugin_set);
509         }
510
511         Plugin *plugin = 0;
512
513 // Position is identical to source plugin
514         if(plugin_type == PLUGIN_SHAREDPLUGIN)
515         {
516                 Track *source_track = tracks->get_item_number(shared_location->module);
517                 if(source_track)
518                 {
519                         Plugin *source_plugin = source_track->get_current_plugin(
520                                 edl->local_session->get_selectionstart(),
521                                 shared_location->plugin,
522                                 PLAY_FORWARD,
523                                 1,
524                                 0);
525
526 // From an attach operation
527                         if(source_plugin)
528                         {
529                                 plugin = plugin_set->insert_plugin(title,
530                                         source_plugin->startproject,
531                                         source_plugin->length,
532                                         plugin_type,
533                                         shared_location,
534                                         default_keyframe,
535                                         1);
536                         }
537                         else
538 // From a drag operation
539                         {
540                                 plugin = plugin_set->insert_plugin(title,
541                                         to_units(start, 0),
542                                         to_units(length, 1),
543                                         plugin_type,
544                                         shared_location,
545                                         default_keyframe,
546                                         1);
547                         }
548                 }
549         }
550         else
551         {
552 // This should be done in the caller
553                 if(EQUIV(length, 0))
554                 {
555                         if(edl->local_session->get_selectionend() >
556                                 edl->local_session->get_selectionstart())
557                         {
558                                 start = edl->local_session->get_selectionstart();
559                                 length = edl->local_session->get_selectionend() - start;
560                         }
561                         else
562                         {
563                                 start = 0;
564                                 length = get_length();
565                         }
566                 }
567 //printf("Track::insert_effect %f %f %d %d\n", start, length, to_units(start, 0),
568 //                      to_units(length, 0));
569
570                 plugin = plugin_set->insert_plugin(title,
571                         to_units(start, 0),
572                         to_units(length, 1),
573                         plugin_type,
574                         shared_location,
575                         default_keyframe,
576                         1);
577         }
578 //printf("Track::insert_effect 2 %f %f\n", start, length);
579
580         expand_view = 1;
581         return plugin;
582 }
583
584 void Track::move_plugins_up(PluginSet *plugin_set)
585 {
586         for(int i = 0; i < this->plugin_set.total; i++)
587         {
588                 if(this->plugin_set.values[i] == plugin_set)
589                 {
590                         if(i == 0) break;
591
592                         PluginSet *temp = this->plugin_set.values[i - 1];
593                         this->plugin_set.values[i - 1] = this->plugin_set.values[i];
594                         this->plugin_set.values[i] = temp;
595
596                         SharedLocation old_location, new_location;
597                         new_location.module = old_location.module = tracks->number_of(this);
598                         old_location.plugin = i;
599                         new_location.plugin = i - 1;
600                         tracks->change_plugins(old_location, new_location, 1);
601                         break;
602                 }
603         }
604 }
605
606 void Track::move_plugins_down(PluginSet *plugin_set)
607 {
608         for(int i = 0; i < this->plugin_set.total; i++)
609         {
610                 if(this->plugin_set.values[i] == plugin_set)
611                 {
612                         if(i == this->plugin_set.total - 1) break;
613
614                         PluginSet *temp = this->plugin_set.values[i + 1];
615                         this->plugin_set.values[i + 1] = this->plugin_set.values[i];
616                         this->plugin_set.values[i] = temp;
617
618                         SharedLocation old_location, new_location;
619                         new_location.module = old_location.module = tracks->number_of(this);
620                         old_location.plugin = i;
621                         new_location.plugin = i + 1;
622                         tracks->change_plugins(old_location, new_location, 1);
623                         break;
624                 }
625         }
626 }
627
628
629 void Track::remove_asset(Indexable *asset)
630 {
631         for(Edit *edit = edits->first; edit; edit = edit->next)
632         {
633                 if(asset->is_asset &&
634                         edit->asset &&
635                         edit->asset == (Asset*)asset)
636                 {
637                         edit->asset = 0;
638                 }
639                 else
640                 if(!asset->is_asset &&
641                         edit->nested_edl &&
642                         edit->nested_edl == (EDL*)asset)
643                 {
644                         edit->nested_edl = 0;
645                 }
646         }
647         optimize();
648 }
649
650 void Track::remove_pluginset(PluginSet *plugin_set)
651 {
652         int i;
653         for(i = 0; i < this->plugin_set.total; i++)
654                 if(plugin_set == this->plugin_set.values[i]) break;
655
656         this->plugin_set.remove_object(plugin_set);
657         for(i++ ; i < this->plugin_set.total; i++)
658         {
659                 SharedLocation old_location, new_location;
660                 new_location.module = old_location.module = tracks->number_of(this);
661                 old_location.plugin = i;
662                 new_location.plugin = i - 1;
663                 tracks->change_plugins(old_location, new_location, 0);
664         }
665 }
666
667 void Track::shift_keyframes(int64_t position, int64_t length)
668 {
669         automation->paste_silence(position, position + length);
670 // Effect keyframes are shifted in shift_effects
671 }
672
673 void Track::shift_effects(int64_t position, int64_t length, int edit_autos)
674 {
675         for(int i = 0; i < plugin_set.total; i++)
676         {
677                 plugin_set.values[i]->shift_effects(position, length, edit_autos);
678         }
679 }
680
681 void Track::detach_effect(Plugin *plugin)
682 {
683 //printf("Track::detach_effect 1\n");
684         for(int i = 0; i < plugin_set.total; i++)
685         {
686                 PluginSet *plugin_set = this->plugin_set.values[i];
687                 for(Plugin *dest = (Plugin*)plugin_set->first;
688                         dest;
689                         dest = (Plugin*)dest->next)
690                 {
691                         if(dest == plugin)
692                         {
693                                 int64_t start = plugin->startproject;
694                                 int64_t end = plugin->startproject + plugin->length;
695
696                                 plugin_set->clear(start, end, 1);
697                                 optimize();
698 //printf("Track::detach_effect 2 %d\n", plugin_set->length());
699 // Delete 0 length pluginsets
700                                 return;
701                         }
702                 }
703         }
704 }
705
706 void Track::resample(double old_rate, double new_rate)
707 {
708         edits->resample(old_rate, new_rate);
709         automation->resample(old_rate, new_rate);
710         for(int i = 0; i < plugin_set.total; i++)
711                 plugin_set.values[i]->resample(old_rate, new_rate);
712         nudge = (int64_t)(nudge * new_rate / old_rate);
713 }
714
715 void Track::detach_shared_effects(int module)
716 {
717         for(int i = 0; i < plugin_set.size(); i++) {
718                 PluginSet *plugin_set = this->plugin_set.get(i);
719                 for(Plugin *dest = (Plugin*)plugin_set->first; dest; ) {
720                         if( (dest->plugin_type == PLUGIN_SHAREDPLUGIN ||
721                                 dest->plugin_type == PLUGIN_SHAREDMODULE) &&
722                                 dest->shared_location.module == module ) {
723                                 int64_t start = dest->startproject;
724                                 int64_t end = dest->startproject + dest->length;
725                                 plugin_set->clear(start, end, 1);
726                         }
727
728                         if(dest) dest = (Plugin*)dest->next;
729                 }
730         }
731         optimize();
732 }
733
734
735 void Track::optimize()
736 {
737         edits->optimize();
738         for(int i = 0; i < plugin_set.total; ) {
739                 PluginSet *plugin_set = this->plugin_set.values[i];
740                 plugin_set->optimize();
741 //printf("Track::optimize %d\n", plugin_set.values[i]->total());
742 // new definition of empty track...
743                 if( !plugin_set->last ||
744                     (plugin_set->last == plugin_set->first &&
745                      plugin_set->last->silence()) ) {
746                         remove_pluginset(plugin_set);
747                         continue;
748                 }
749                 ++i;
750         }
751 }
752
753 Plugin* Track::get_current_plugin(double position,
754         int plugin_set,
755         int direction,
756         int convert_units,
757         int use_nudge)
758 {
759         Plugin *current;
760         if(convert_units) position = to_units(position, 0);
761         if(use_nudge) position += nudge;
762
763         if(plugin_set >= this->plugin_set.total || plugin_set < 0) return 0;
764
765 //printf("Track::get_current_plugin 1 %d %d %d\n", position, this->plugin_set.total, direction);
766         if(direction == PLAY_FORWARD)
767         {
768                 for(current = (Plugin*)this->plugin_set.values[plugin_set]->last;
769                         current;
770                         current = (Plugin*)PREVIOUS)
771                 {
772 // printf("Track::get_current_plugin 2 %d %ld %ld\n",
773 // current->startproject,
774 // current->startproject + current->length,
775 // position);
776                         if(current->startproject <= position &&
777                                 current->startproject + current->length > position)
778                         {
779                                 return current;
780                         }
781                 }
782         }
783         else
784         if(direction == PLAY_REVERSE)
785         {
786                 for(current = (Plugin*)this->plugin_set.values[plugin_set]->first;
787                         current;
788                         current = (Plugin*)NEXT)
789                 {
790                         if(current->startproject < position &&
791                                 current->startproject + current->length >= position)
792                         {
793                                 return current;
794                         }
795                 }
796         }
797
798         return 0;
799 }
800
801 Plugin* Track::get_current_transition(double position,
802         int direction,
803         int convert_units,
804         int use_nudge)
805 {
806         Edit *current;
807         Plugin *result = 0;
808         if(convert_units) position = to_units(position, 0);
809         if(use_nudge) position += nudge;
810
811         if(direction == PLAY_FORWARD)
812         {
813                 for(current = edits->last; current; current = PREVIOUS)
814                 {
815                         if(current->startproject <= position && current->startproject + current->length > position)
816                         {
817 //printf("Track::get_current_transition %p\n", current->transition);
818                                 if(current->transition && position < current->startproject + current->transition->length)
819                                 {
820                                         result = current->transition;
821                                         break;
822                                 }
823                         }
824                 }
825         }
826         else
827         if(direction == PLAY_REVERSE)
828         {
829                 for(current = edits->first; current; current = NEXT)
830                 {
831                         if(current->startproject < position && current->startproject + current->length >= position)
832                         {
833                                 if(current->transition && position <= current->startproject + current->transition->length)
834                                 {
835                                         result = current->transition;
836                                         break;
837                                 }
838                         }
839                 }
840         }
841
842         return result;
843 }
844
845 void Track::synchronize_params(Track *track)
846 {
847         for(Edit *this_edit = edits->first, *that_edit = track->edits->first;
848                 this_edit && that_edit;
849                 this_edit = this_edit->next, that_edit = that_edit->next)
850         {
851                 this_edit->synchronize_params(that_edit);
852         }
853
854         for(int i = 0; i < plugin_set.total && i < track->plugin_set.total; i++)
855                 plugin_set.values[i]->synchronize_params(track->plugin_set.values[i]);
856
857         automation->copy_from(track->automation);
858         this->nudge = track->nudge;
859 }
860
861
862
863
864
865 int Track::dump(FILE *fp)
866 {
867         fprintf(fp,"   Data type %d\n", data_type);
868         fprintf(fp,"   Title %s\n", title);
869         fprintf(fp,"   Edits:\n");
870         for(Edit* current = edits->first; current; current = NEXT)
871         {
872                 current->dump(fp);
873         }
874         automation->dump(fp);
875         fprintf(fp,"   Plugin Sets: %d\n", plugin_set.total);
876
877         for(int i = 0; i < plugin_set.total; i++)
878                 plugin_set.values[i]->dump(fp);
879 //printf("Track::dump 2\n");
880         return 0;
881 }
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903 Track::Track() : ListItem<Track>()
904 {
905         y_pixel = 0;
906 }
907
908 // ======================================== accounting
909
910 int Track::number_of()
911 {
912         return tracks->number_of(this);
913 }
914
915
916
917
918
919
920
921
922
923
924
925
926
927 // ================================================= editing
928
929 int Track::select_auto(AutoConf *auto_conf, int cursor_x, int cursor_y)
930 {
931         return 0;
932 }
933
934 int Track::move_auto(AutoConf *auto_conf, int cursor_x, int cursor_y, int shift_down)
935 {
936         return 0;
937 }
938
939 int Track::release_auto()
940 {
941         return 0;
942 }
943
944 // used for copying automation alone
945 int Track::copy_automation(double selectionstart,
946         double selectionend,
947         FileXML *file,
948         int default_only,
949         int active_only)
950 {
951         int64_t start = to_units(selectionstart, 0);
952         int64_t end = to_units(selectionend, 1);
953
954         file->tag.set_title("TRACK");
955 // Video or audio
956     save_header(file);
957         file->append_tag();
958         file->append_newline();
959
960         automation->copy(start, end, file, default_only, active_only);
961
962         if(edl->session->auto_conf->plugins)
963         {
964                 for(int i = 0; i < plugin_set.total; i++)
965                 {
966
967                         plugin_set.values[i]->copy_keyframes(start,
968                                 end,
969                                 file,
970                                 default_only,
971                                 active_only);
972                 }
973         }
974
975         file->tag.set_title("/TRACK");
976         file->append_tag();
977         file->append_newline();
978         file->append_newline();
979         file->append_newline();
980         file->append_newline();
981
982         return 0;
983 }
984
985 int Track::paste_automation(double selectionstart,
986         double total_length,
987         double frame_rate,
988         int64_t sample_rate,
989         FileXML *file,
990         int default_only,
991         int active_only)
992 {
993 // Only used for pasting automation alone.
994         int64_t start;
995         int64_t length;
996         int result;
997         double scale;
998         int current_pluginset;
999
1000         if(data_type == TRACK_AUDIO)
1001                 scale = edl->session->sample_rate / sample_rate;
1002         else
1003                 scale = edl->session->frame_rate / frame_rate;
1004
1005         total_length *= scale;
1006         start = to_units(selectionstart, 0);
1007         length = to_units(total_length, 1);
1008         result = 0;
1009         current_pluginset = 0;
1010 //printf("Track::paste_automation 1\n");
1011
1012         while(!result)
1013         {
1014                 result = file->read_tag();
1015
1016                 if(!result)
1017                 {
1018                         if(file->tag.title_is("/TRACK"))
1019                                 result = 1;
1020                         else
1021                         if(automation->paste(start, length, scale, file,
1022                                         default_only, active_only, 0)) {}
1023                         else if(file->tag.title_is("PLUGINSET")) {
1024                                 if(current_pluginset < plugin_set.total) {
1025                                         plugin_set.values[current_pluginset]->
1026                                                 paste_keyframes(start, length, file,
1027                                                 default_only, active_only);
1028                                         current_pluginset++;
1029                                 }
1030                         }
1031                 }
1032         }
1033
1034
1035         return 0;
1036 }
1037
1038 void Track::clear_automation(double selectionstart,
1039         double selectionend,
1040         int shift_autos,
1041         int default_only)
1042 {
1043         int64_t start = to_units(selectionstart, 0);
1044         int64_t end = to_units(selectionend, 1);
1045
1046         automation->clear(start, end, edl->session->auto_conf, 0);
1047
1048         if(edl->session->auto_conf->plugins)
1049         {
1050                 for(int i = 0; i < plugin_set.total; i++)
1051                 {
1052                         plugin_set.values[i]->clear_keyframes(start, end);
1053                 }
1054         }
1055
1056 }
1057
1058 void Track::set_automation_mode(double selectionstart,
1059         double selectionend,
1060         int mode)
1061 {
1062         int64_t start = to_units(selectionstart, 0);
1063         int64_t end = to_units(selectionend, 1);
1064
1065         automation->set_automation_mode(start, end, mode, edl->session->auto_conf);
1066 }
1067
1068
1069
1070
1071 int Track::copy(double start,
1072         double end,
1073         FileXML *file,
1074         const char *output_path)
1075 {
1076 // Use a copy of the selection in converted units
1077 // So copy_automation doesn't reconvert.
1078         int64_t start_unit = to_units(start, 0);
1079         int64_t end_unit = to_units(end, 1);
1080
1081
1082
1083
1084         file->tag.set_title("TRACK");
1085         file->tag.set_property("RECORD", record);
1086         file->tag.set_property("NUDGE", nudge);
1087         file->tag.set_property("MIXER_ID", mixer_id);
1088         file->tag.set_property("PLAY", play);
1089         file->tag.set_property("GANG", gang);
1090         file->tag.set_property("DRAW", draw);
1091         file->tag.set_property("EXPAND", expand_view);
1092         file->tag.set_property("TRACK_W", track_w);
1093         file->tag.set_property("TRACK_H", track_h);
1094         save_header(file);
1095         file->append_tag();
1096         file->append_newline();
1097         save_derived(file);
1098
1099         file->tag.set_title("TITLE");
1100         file->append_tag();
1101         file->append_text(title);
1102         file->tag.set_title("/TITLE");
1103         file->append_tag();
1104         file->append_newline();
1105
1106 //      if(data_type == TRACK_AUDIO)
1107 //              file->tag.set_property("TYPE", "AUDIO");
1108 //      else
1109 //              file->tag.set_property("TYPE", "VIDEO");
1110 //
1111 //      file->append_tag();
1112 //      file->append_newline();
1113
1114         edits->copy(start_unit, end_unit, file, output_path);
1115
1116         AutoConf auto_conf;
1117         auto_conf.set_all(1);
1118         automation->copy(start_unit, end_unit, file, 0, 0);
1119
1120
1121         for(int i = 0; i < plugin_set.total; i++)
1122         {
1123                 plugin_set.values[i]->copy(start_unit, end_unit, file);
1124         }
1125
1126         copy_derived(start_unit, end_unit, file);
1127
1128         file->tag.set_title("/TRACK");
1129         file->append_tag();
1130         file->append_newline();
1131         file->append_newline();
1132         file->append_newline();
1133         file->append_newline();
1134
1135         return 0;
1136 }
1137
1138 int Track::copy_assets(double start,
1139         double end,
1140         ArrayList<Asset*> *asset_list)
1141 {
1142         int i, result = 0;
1143
1144         start = to_units(start, 0);
1145         end = to_units(end, 1);
1146
1147         Edit *current = edits->editof((int64_t)start, PLAY_FORWARD, 0);
1148
1149 // Search all edits
1150         while(current && current->startproject < end)
1151         {
1152 // Check for duplicate assets
1153                 if(current->asset)
1154                 {
1155                         for(i = 0, result = 0; i < asset_list->total; i++)
1156                         {
1157                                 if(asset_list->values[i] == current->asset) result = 1;
1158                         }
1159 // append pointer to new asset
1160                         if(!result) asset_list->append(current->asset);
1161                 }
1162
1163                 current = NEXT;
1164         }
1165
1166         return 0;
1167 }
1168
1169 int Track::blade(double position)
1170 {
1171         int64_t start = to_units(position, 0);
1172         Edit *edit = edits->split_edit(start);
1173         if( !edit ) return 1;
1174         edit->hard_left = 1;
1175         if( edit->previous ) edit->previous->hard_right = 1;
1176         return 0;
1177 }
1178
1179 int Track::clear(double start, double end,
1180         int edit_edits, int edit_labels, int edit_plugins,
1181         int edit_autos, int convert_units, Edits *trim_edits)
1182 {
1183 // Edits::move_auto calls this routine after the units are converted to the track
1184 // format.
1185 //printf("Track::clear 1 %d %d %d\n", edit_edits, edit_labels, edit_plugins);
1186         if(convert_units)
1187         {
1188                 start = to_units(start, 0);
1189                 end = to_units(end, 1);
1190         }
1191
1192
1193         if(edit_autos)
1194                 automation->clear((int64_t)start, (int64_t)end, 0, 1);
1195
1196         if(edit_plugins)
1197         {
1198                 for(int i = 0; i < plugin_set.total; i++)
1199                 {
1200                         if(!trim_edits || trim_edits == (Edits*)plugin_set.values[i])
1201                                 plugin_set.values[i]->clear((int64_t)start, (int64_t)end, edit_autos);
1202                 }
1203         }
1204
1205         if(edit_edits)
1206                 edits->clear((int64_t)start, (int64_t)end);
1207         return 0;
1208 }
1209
1210 int Track::clear_handle(double start,
1211         double end,
1212         int clear_labels,
1213         int clear_plugins,
1214         int edit_autos,
1215         double &distance)
1216 {
1217         edits->clear_handle(start, end, clear_plugins, edit_autos, distance);
1218         return 0;
1219 }
1220
1221 int Track::popup_transition(int cursor_x, int cursor_y)
1222 {
1223         return 0;
1224 }
1225
1226
1227
1228 int Track::modify_edithandles(double oldposition,
1229         double newposition,
1230         int currentend,
1231         int handle_mode,
1232         int edit_labels,
1233         int edit_plugins,
1234         int edit_autos)
1235 {
1236         edits->modify_handles(oldposition,
1237                 newposition,
1238                 currentend,
1239                 handle_mode,
1240                 1,
1241                 edit_labels,
1242                 edit_plugins,
1243                 edit_autos,
1244                 0);
1245
1246
1247         return 0;
1248 }
1249
1250 int Track::modify_pluginhandles(double oldposition,
1251         double newposition,
1252         int currentend,
1253         int handle_mode,
1254         int edit_labels,
1255         int edit_autos,
1256         Edits *trim_edits)
1257 {
1258         for(int i = 0; i < plugin_set.total; i++)
1259         {
1260                 if(!trim_edits || trim_edits == (Edits*)plugin_set.values[i])
1261                         plugin_set.values[i]->modify_handles(oldposition,
1262                                 newposition,
1263                                 currentend,
1264                                 handle_mode,
1265 // Don't allow plugin tweeks to affect edits.
1266                                 0,
1267                                 edit_labels,
1268                                 1,
1269                                 edit_autos,
1270                                 trim_edits);
1271         }
1272         return 0;
1273 }
1274
1275
1276 int Track::paste_silence(double start, double end, int edit_plugins, int edit_autos)
1277 {
1278         int64_t start_i = to_units(start, 0);
1279         int64_t end_i = to_units(end, 1);
1280
1281         edits->paste_silence(start_i, end_i);
1282         if(edit_autos) shift_keyframes(start_i, end_i - start_i);
1283         if(edit_plugins) shift_effects(start_i, end_i - start_i, edit_autos);
1284
1285         edits->optimize();
1286         return 0;
1287 }
1288
1289 int Track::select_edit(int cursor_x,
1290         int cursor_y,
1291         double &new_start,
1292         double &new_end)
1293 {
1294         return 0;
1295 }
1296
1297 int Track::scale_time(float rate_scale, int scale_edits, int scale_autos, int64_t start, int64_t end)
1298 {
1299         return 0;
1300 }
1301
1302 void Track::change_plugins(SharedLocation &old_location, SharedLocation &new_location, int do_swap)
1303 {
1304         for(int i = 0; i < plugin_set.total; i++)
1305         {
1306                 for(Plugin *plugin = (Plugin*)plugin_set.values[i]->first;
1307                         plugin;
1308                         plugin = (Plugin*)plugin->next)
1309                 {
1310                         if(plugin->plugin_type == PLUGIN_SHAREDPLUGIN)
1311                         {
1312                                 if(plugin->shared_location == old_location)
1313                                         plugin->shared_location = new_location;
1314                                 else
1315                                 if(do_swap && plugin->shared_location == new_location)
1316                                         plugin->shared_location = old_location;
1317                         }
1318                 }
1319         }
1320 }
1321
1322 void Track::change_modules(int old_location, int new_location, int do_swap)
1323 {
1324         for(int i = 0; i < plugin_set.total; i++)
1325         {
1326                 for(Plugin *plugin = (Plugin*)plugin_set.values[i]->first;
1327                         plugin;
1328                         plugin = (Plugin*)plugin->next)
1329                 {
1330                         if(plugin->plugin_type == PLUGIN_SHAREDPLUGIN ||
1331                                 plugin->plugin_type == PLUGIN_SHAREDMODULE)
1332                         {
1333                                 if(plugin->shared_location.module == old_location)
1334                                         plugin->shared_location.module = new_location;
1335                                 else
1336                                 if(do_swap && plugin->shared_location.module == new_location)
1337                                         plugin->shared_location.module = old_location;
1338                         }
1339                 }
1340         }
1341 }
1342
1343
1344 int Track::playable_edit(int64_t position, int direction)
1345 {
1346         int result = 0;
1347         if(direction == PLAY_REVERSE) position--;
1348         for(Edit *current = edits->first; current && !result; current = NEXT)
1349         {
1350                 if(current->startproject <= position &&
1351                         current->startproject + current->length > position)
1352                 {
1353 //printf("Track::playable_edit %p %p\n", current->transition, current->asset);
1354                         if(current->transition ||
1355                                 current->asset ||
1356                                 current->nested_edl) result = 1;
1357                 }
1358         }
1359         return result;
1360 }
1361
1362
1363 int Track::need_edit(Edit *current, int test_transitions)
1364 {
1365         return ((test_transitions && current->transition) ||
1366                 (!test_transitions && current->asset));
1367 }
1368
1369 int64_t Track::plugin_change_duration(int64_t input_position,
1370         int64_t input_length,
1371         int reverse,
1372         int use_nudge)
1373 {
1374         if(use_nudge) input_position += nudge;
1375         for(int i = 0; i < plugin_set.total; i++)
1376         {
1377                 int64_t new_duration = plugin_set.values[i]->plugin_change_duration(
1378                         input_position,
1379                         input_length,
1380                         reverse);
1381                 if(new_duration < input_length) input_length = new_duration;
1382         }
1383         return input_length;
1384 }
1385
1386 int64_t Track::edit_change_duration(int64_t input_position,
1387         int64_t input_length,
1388         int reverse,
1389         int test_transitions,
1390         int use_nudge)
1391 {
1392         Edit *current;
1393         int64_t edit_length = input_length;
1394         if(use_nudge) input_position += nudge;
1395
1396         if(reverse)
1397         {
1398 // ================================= Reverse playback
1399 // Get first edit on or after position
1400                 for(current = edits->first;
1401                         current && current->startproject + current->length <= input_position;
1402                         current = NEXT)
1403                         ;
1404
1405                 if(current)
1406                 {
1407                         if(current->startproject > input_position)
1408                         {
1409 // Before first edit
1410                                 ;
1411                         }
1412                         else
1413                         if(need_edit(current, test_transitions))
1414                         {
1415 // Over an edit of interest.
1416                                 if(input_position - current->startproject < input_length)
1417                                         edit_length = input_position - current->startproject + 1;
1418                         }
1419                         else
1420                         {
1421 // Over an edit that isn't of interest.
1422 // Search for next edit of interest.
1423                                 for(current = PREVIOUS ;
1424                                         current &&
1425                                         current->startproject + current->length > input_position - input_length &&
1426                                         !need_edit(current, test_transitions);
1427                                         current = PREVIOUS)
1428                                         ;
1429
1430                                         if(current &&
1431                                                 need_edit(current, test_transitions) &&
1432                                                 current->startproject + current->length > input_position - input_length)
1433                         edit_length = input_position - current->startproject - current->length + 1;
1434                         }
1435                 }
1436                 else
1437                 {
1438 // Not over an edit.  Try the last edit.
1439                         current = edits->last;
1440                         if(current &&
1441                                 ((test_transitions && current->transition) ||
1442                                 (!test_transitions && current->asset)))
1443                                 edit_length = input_position - edits->length() + 1;
1444                 }
1445         }
1446         else
1447         {
1448 // =================================== forward playback
1449 // Get first edit on or before position
1450                 for(current = edits->last;
1451                         current && current->startproject > input_position;
1452                         current = PREVIOUS)
1453                         ;
1454
1455                 if(current)
1456                 {
1457                         if(current->startproject + current->length <= input_position)
1458                         {
1459 // Beyond last edit.
1460                                 ;
1461                         }
1462                         else
1463                         if(need_edit(current, test_transitions))
1464                         {
1465 // Over an edit of interest.
1466 // Next edit is going to require a change.
1467                                 if(current->length + current->startproject - input_position < input_length)
1468                                         edit_length = current->startproject + current->length - input_position;
1469                         }
1470                         else
1471                         {
1472 // Over an edit that isn't of interest.
1473 // Search for next edit of interest.
1474                                 for(current = NEXT ;
1475                                         current &&
1476                                         current->startproject < input_position + input_length &&
1477                                         !need_edit(current, test_transitions);
1478                                         current = NEXT)
1479                                         ;
1480
1481                                         if(current &&
1482                                                 need_edit(current, test_transitions) &&
1483                                                 current->startproject < input_position + input_length)
1484                                                 edit_length = current->startproject - input_position;
1485                         }
1486                 }
1487                 else
1488                 {
1489 // Not over an edit.  Try the first edit.
1490                         current = edits->first;
1491                         if(current &&
1492                                 ((test_transitions && current->transition) ||
1493                                 (!test_transitions && current->asset)))
1494                                 edit_length = edits->first->startproject - input_position;
1495                 }
1496         }
1497
1498         if(edit_length < input_length)
1499                 return edit_length;
1500         else
1501                 return input_length;
1502 }
1503
1504 void Track::shuffle_edits(double start, double end, int first_track)
1505 {
1506         ArrayList<Edit*> new_edits;
1507         ArrayList<Label*> new_labels;
1508         int64_t start_units = to_units(start, 0);
1509         int64_t end_units = to_units(end, 0);
1510 // Sample range of all edits selected
1511         //int64_t total_start_units = 0;
1512         //int64_t total_end_units = 0;
1513 // Edit before range
1514         Edit *start_edit = 0;
1515         int have_start_edit = 0;
1516
1517 // Move all edit pointers to list
1518         for(Edit *current = edits->first;
1519                 current; )
1520         {
1521                 if(current->startproject >= start_units &&
1522                         current->startproject + current->length <= end_units)
1523                 {
1524                         if(!have_start_edit) start_edit = current->previous;
1525                         have_start_edit = 1;
1526                         //total_start_units = current->startproject;
1527                         //total_end_units = current->startproject + current->length;
1528                         new_edits.append(current);
1529
1530 // Move label pointers
1531                         if(first_track && edl->session->labels_follow_edits)
1532                         {
1533                                 double start_seconds = from_units(current->startproject);
1534                                 double end_seconds = from_units(current->startproject +
1535                                         current->length);
1536                                 for(Label *label = edl->labels->first;
1537                                         label;
1538                                         label = label->next)
1539                                 {
1540                                         if(label->position >= start_seconds &&
1541                                                 label->position < end_seconds)
1542                                         {
1543                                                 new_labels.append(label);
1544                                                 edl->labels->remove_pointer(label);
1545                                         }
1546                                 }
1547                         }
1548
1549 // Remove edit pointer
1550                         Edit *previous = current;
1551                         current = NEXT;
1552                         edits->remove_pointer(previous);
1553                 }
1554                 else
1555                 {
1556                         current = NEXT;
1557                 }
1558         }
1559
1560 // Insert pointers in random order
1561         while(new_edits.size())
1562         {
1563                 int index = rand() % new_edits.size();
1564                 Edit *edit = new_edits.get(index);
1565                 new_edits.remove_number(index);
1566                 if( !start_edit )
1567                         edits->insert_before(edits->first, edit);
1568                 else
1569                         edits->insert_after(start_edit, edit);
1570                 start_edit = edit;
1571
1572 // Recalculate start position
1573 // Save old position for moving labels
1574                 int64_t startproject1 = edit->startproject;
1575                 int64_t startproject2 = 0;
1576                 if(edit->previous)
1577                 {
1578                         edit->startproject =
1579                                 startproject2 =
1580                                 edit->previous->startproject + edit->previous->length;
1581                 }
1582                 else
1583                 {
1584                         edit->startproject = startproject2 = 0;
1585                 }
1586
1587
1588 // Insert label pointers
1589                 if(first_track && edl->session->labels_follow_edits)
1590                 {
1591                         double start_seconds1 = from_units(startproject1);
1592                         double end_seconds1 = from_units(startproject1 + edit->length);
1593                         double start_seconds2 = from_units(startproject2);
1594                         for(int i = new_labels.size() - 1; i >= 0; i--)
1595                         {
1596                                 Label *label = new_labels.get(i);
1597 // Was in old edit position
1598                                 if(label->position >= start_seconds1 &&
1599                                         label->position < end_seconds1)
1600                                 {
1601 // Move to new edit position
1602                                         double position = label->position -
1603                                                 start_seconds1 + start_seconds2;
1604                                         edl->labels->insert_label(position);
1605                                         new_labels.remove_object_number(i);
1606                                 }
1607                         }
1608                 }
1609
1610
1611         }
1612
1613         optimize();
1614
1615         if(first_track && edl->session->labels_follow_edits)
1616         {
1617                 edl->labels->optimize();
1618         }
1619 }
1620
1621 // exactly the same as shuffle_edits except for 1 line
1622 void Track::reverse_edits(double start, double end, int first_track)
1623 {
1624         ArrayList<Edit*> new_edits;
1625         ArrayList<Label*> new_labels;
1626         int64_t start_units = to_units(start, 0);
1627         int64_t end_units = to_units(end, 0);
1628 // Sample range of all edits selected
1629         //int64_t total_start_units = 0;
1630         //int64_t total_end_units = 0;
1631 // Edit before range
1632         Edit *start_edit = 0;
1633         int have_start_edit = 0;
1634
1635 // Move all edit pointers to list
1636         for(Edit *current = edits->first; current; )
1637         {
1638                 if(current->startproject >= start_units &&
1639                         current->startproject + current->length <= end_units)
1640                 {
1641                         if(!have_start_edit) start_edit = current->previous;
1642                         have_start_edit = 1;
1643                         //total_start_units = current->startproject;
1644                         //total_end_units = current->startproject + current->length;
1645                         new_edits.append(current);
1646
1647 // Move label pointers
1648                         if(first_track && edl->session->labels_follow_edits)
1649                         {
1650                                 double start_seconds = from_units(current->startproject);
1651                                 double end_seconds = from_units(current->startproject +
1652                                         current->length);
1653                                 for(Label *label = edl->labels->first;
1654                                         label;
1655                                         label = label->next)
1656                                 {
1657                                         if(label->position >= start_seconds &&
1658                                                 label->position < end_seconds)
1659                                         {
1660                                                 new_labels.append(label);
1661                                                 edl->labels->remove_pointer(label);
1662                                         }
1663                                 }
1664                         }
1665
1666 // Remove edit pointer
1667                         Edit *previous = current;
1668                         current = NEXT;
1669                         edits->remove_pointer(previous);
1670                 }
1671                 else
1672                 {
1673                         current = NEXT;
1674                 }
1675         }
1676
1677 // Insert pointers in reverse order
1678         while(new_edits.size())
1679         {
1680                 int index = new_edits.size() - 1;
1681                 Edit *edit = new_edits.get(index);
1682                 new_edits.remove_number(index);
1683                 if( !start_edit )
1684                         edits->insert_before(edits->first, edit);
1685                 else
1686                         edits->insert_after(start_edit, edit);
1687                 start_edit = edit;
1688
1689 // Recalculate start position
1690 // Save old position for moving labels
1691                 int64_t startproject1 = edit->startproject;
1692                 int64_t startproject2 = 0;
1693                 if(edit->previous)
1694                 {
1695                         edit->startproject =
1696                                 startproject2 =
1697                                 edit->previous->startproject + edit->previous->length;
1698                 }
1699                 else
1700                 {
1701                         edit->startproject = startproject2 = 0;
1702                 }
1703
1704
1705 // Insert label pointers
1706                 if(first_track && edl->session->labels_follow_edits)
1707                 {
1708                         double start_seconds1 = from_units(startproject1);
1709                         double end_seconds1 = from_units(startproject1 + edit->length);
1710                         double start_seconds2 = from_units(startproject2);
1711                         for(int i = new_labels.size() - 1; i >= 0; i--)
1712                         {
1713                                 Label *label = new_labels.get(i);
1714 // Was in old edit position
1715                                 if(label->position >= start_seconds1 &&
1716                                         label->position < end_seconds1)
1717                                 {
1718 // Move to new edit position
1719                                         double position = label->position -
1720                                                 start_seconds1 + start_seconds2;
1721                                         edl->labels->insert_label(position);
1722                                         new_labels.remove_object_number(i);
1723                                 }
1724                         }
1725                 }
1726
1727
1728         }
1729
1730         optimize();
1731
1732         if(first_track && edl->session->labels_follow_edits)
1733         {
1734                 edl->labels->optimize();
1735         }
1736 }
1737
1738 void Track::align_edits(double start,
1739         double end,
1740         ArrayList<double> *times)
1741 {
1742         int64_t start_units = to_units(start, 0);
1743         int64_t end_units = to_units(end, 0);
1744
1745 // If 1st track with data, times is empty & we need to collect the edit times.
1746         if(!times->size())
1747         {
1748                 for(Edit *current = edits->first; current; current = NEXT)
1749                 {
1750                         if(current->startproject >= start_units &&
1751                                 current->startproject + current->length <= end_units)
1752                         {
1753                                 times->append(from_units(current->startproject));
1754                         }
1755                 }
1756         }
1757         else
1758 // All other tracks get silence or cut to align the edits on the times.
1759         {
1760                 int current_time = 0;
1761                 for(Edit *current = edits->first;
1762                         current && current_time < times->size(); )
1763                 {
1764                         if(current->startproject >= start_units &&
1765                                 current->startproject + current->length <= end_units)
1766                         {
1767                                 int64_t desired_startunits = to_units(times->get(current_time), 0);
1768                                 int64_t current_startunits = current->startproject;
1769                                 current = NEXT;
1770
1771
1772                                 if(current_startunits < desired_startunits)
1773                                 {
1774 //printf("Track::align_edits %d\n", __LINE__);
1775                                         edits->paste_silence(current_startunits,
1776                                                 desired_startunits);
1777                                         shift_keyframes(current_startunits,
1778                                                 desired_startunits - current_startunits);
1779                                 }
1780                                 else
1781                                 if(current_startunits > desired_startunits)
1782                                 {
1783                                         edits->clear(desired_startunits,
1784                                                 current_startunits);
1785                                         if(edl->session->autos_follow_edits)
1786                                                 shift_keyframes(desired_startunits,
1787                                                         current_startunits - desired_startunits);
1788                                 }
1789
1790                                 current_time++;
1791                         }
1792                         else
1793                         {
1794                                 current = NEXT;
1795                         }
1796                 }
1797         }
1798
1799         optimize();
1800 }
1801
1802 int Track::purge_asset(Asset *asset)
1803 {
1804         return 0;
1805 }
1806
1807 int Track::asset_used(Asset *asset)
1808 {
1809         Edit* current_edit;
1810         int result = 0;
1811
1812         for(current_edit = edits->first; current_edit; current_edit = current_edit->next)
1813         {
1814                 if(current_edit->asset == asset)
1815                 {
1816                         result++;
1817                 }
1818         }
1819         return result;
1820 }
1821
1822 int Track::is_playable(int64_t position, int direction)
1823 {
1824         return 1;
1825 }
1826
1827
1828 int Track::plugin_used(int64_t position, int64_t direction)
1829 {
1830 //printf("Track::plugin_used 1 %d\n", this->plugin_set.total);
1831         for(int i = 0; i < this->plugin_set.total; i++)
1832         {
1833                 Plugin *current_plugin = get_current_plugin(position,
1834                         i,
1835                         direction,
1836                         0,
1837                         0);
1838
1839 //printf("Track::plugin_used 2 %p %d %d\n", current_plugin, current_plugin->on, current_plugin->plugin_type);
1840                 if(current_plugin &&
1841                         current_plugin->on &&
1842                         current_plugin->plugin_type != PLUGIN_NONE)
1843                 {
1844                         return 1;
1845                 }
1846         }
1847 //printf("Track::plugin_used 3 %p\n", current_plugin);
1848         return 0;
1849 }
1850
1851 // Audio is always rendered through VConsole
1852 int Track::direct_copy_possible(int64_t start, int direction, int use_nudge)
1853 {
1854         return 1;
1855 }
1856
1857 int64_t Track::to_units(double position, int round)
1858 {
1859         return (int64_t)position;
1860 }
1861
1862 double Track::to_doubleunits(double position)
1863 {
1864         return position;
1865 }
1866
1867 double Track::from_units(int64_t position)
1868 {
1869         return (double)position;
1870 }
1871
1872 int64_t Track::frame_align(int64_t position, int round)
1873 {
1874         if( data_type != TRACK_VIDEO && edl->session->cursor_on_frames )
1875                 position = to_units(edl->align_to_frame(from_units(position), round), round);
1876         return position;
1877 }
1878
1879 int Track::plugin_exists(Plugin *plugin)
1880 {
1881         for(int number = 0; number < plugin_set.size(); number++)
1882         {
1883                 PluginSet *ptr = plugin_set.get(number);
1884                 for(Plugin *current_plugin = (Plugin*)ptr->first;
1885                         current_plugin;
1886                         current_plugin = (Plugin*)current_plugin->next)
1887                 {
1888                         if(current_plugin == plugin) return 1;
1889                 }
1890         }
1891
1892         for(Edit *current = edits->first; current; current = NEXT)
1893         {
1894                 if(current->transition &&
1895                         (Plugin*)current->transition == plugin) return 1;
1896         }
1897
1898
1899         return 0;
1900 }
1901
1902 int Track::get_mixer_id()
1903 {
1904         if( mixer_id < 0 ) {
1905                 int v = 0;
1906                 for( Track *track=tracks->first; track!=0; track=track->next )
1907                         if( track->mixer_id > v ) v = track->mixer_id;
1908                 mixer_id = v + 1;
1909         }
1910         return mixer_id;
1911 }
1912