gtk2_ardour/editor_timefx.cc

   1 /*
   2     Copyright (C) 2000 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <iostream>
  21 #include <cstdlib>
  22 #include <cmath>
  23
  24 #include <string>
  25
  26 #include <pbd/error.h>
  27 #include <pbd/pthread_utils.h>
  28 #include <pbd/memento_command.h>
  29
  30 #include <gtkmm2ext/window_title.h>
  31 #include <gtkmm2ext/utils.h>
  32
  33 #include "editor.h"
  34 #include "audio_time_axis.h"
  35 #include "audio_region_view.h"
  36 #include "region_selection.h"
  37
  38 #include <ardour/session.h>
  39 #include <ardour/region.h>
  40 #include <ardour/audioplaylist.h>
  41 #include <ardour/audio_track.h>
  42 #include <ardour/audioregion.h>
  43 #include <ardour/audio_diskstream.h>
  44 #include <ardour/stretch.h>
  45 #include <ardour/midi_stretch.h>
  46 #include <ardour/pitch.h>
  47
  48 #ifdef USE_RUBBERBAND
  49 #include <rubberband/RubberBandStretcher.h>
  50 using namespace RubberBand;
  51 #endif
  52
  53 #include "i18n.h"
  54
  55 using namespace std;
  56 using namespace ARDOUR;
  57 using namespace PBD;
  58 using namespace sigc;
  59 using namespace Gtk;
  60 using namespace Gtkmm2ext;
  61
  62 Editor::TimeFXDialog::TimeFXDialog (Editor& e, bool pitch)
  63         : ArdourDialog (X_("time fx dialog")),
  64           editor (e),
  65           pitching (pitch),
  66           pitch_octave_adjustment (0.0, -4.0, 4.0, 1, 2.0),
  67           pitch_semitone_adjustment (0.0, -12.0, 12.0, 1.0, 4.0),
  68           pitch_cent_adjustment (0.0, -499.0, 500.0, 5.0, 15.0),
  69           pitch_octave_spinner (pitch_octave_adjustment),
  70           pitch_semitone_spinner (pitch_semitone_adjustment),
  71           pitch_cent_spinner (pitch_cent_adjustment),
  72           quick_button (_("Quick but Ugly")),
  73           antialias_button (_("Skip Anti-aliasing")),
  74           stretch_opts_label (_("Contents:")),
  75           precise_button (_("Strict Linear")),
  76           preserve_formants_button(_("Preserve Formants"))
  77 {
  78         set_modal (true);
  79         set_position (Gtk::WIN_POS_MOUSE);
  80         set_name (N_("TimeFXDialog"));
  81
  82         WindowTitle title(Glib::get_application_name());
  83         if (pitching) {
  84                 title += _("Pitch Shift");
  85         } else {
  86                 title += _("Time Stretch");
  87         }
  88         set_title(title.get_string());
  89
  90         cancel_button = add_button (_("Cancel"), Gtk::RESPONSE_CANCEL);
  91
  92         get_vbox()->set_spacing (5);
  93         get_vbox()->set_border_width (12);
  94
  95         if (pitching) {
  96
  97                 upper_button_box.set_spacing (5);
  98                 upper_button_box.set_border_width (5);
  99
 100                 Gtk::Label* l;
 101
 102                 l = manage (new Label (_("Octaves")));
 103                 upper_button_box.pack_start (*l, false, false);
 104                 upper_button_box.pack_start (pitch_octave_spinner, false, false);
 105
 106                 l = manage (new Label (_("Semitones (12TET)")));
 107                 upper_button_box.pack_start (*l, false, false);
 108                 upper_button_box.pack_start (pitch_semitone_spinner, false, false);
 109
 110                 l = manage (new Label (_("Cents")));
 111                 upper_button_box.pack_start (*l, false, false);
 112                 upper_button_box.pack_start (pitch_cent_spinner, false, false);
 113
 114                 pitch_cent_spinner.set_digits (1);
 115
 116                 upper_button_box.pack_start (preserve_formants_button, false, false);
 117
 118
 119                 add_button (_("Shift"), Gtk::RESPONSE_ACCEPT);
 120
 121                 get_vbox()->pack_start (upper_button_box, false, false);
 122
 123         } else {
 124
 125 #ifdef USE_RUBBERBAND
 126                 opts_box.set_spacing (5);
 127                 opts_box.set_border_width (5);
 128                 vector<string> strings;
 129
 130                 set_popdown_strings (stretch_opts_selector, editor.rb_opt_strings);
 131                 /* set default */
 132                 stretch_opts_selector.set_active_text (editor.rb_opt_strings[4]);
 133
 134                 opts_box.pack_start (precise_button, false, false);
 135                 opts_box.pack_start (stretch_opts_label, false, false);
 136                 opts_box.pack_start (stretch_opts_selector, false, false);
 137
 138                 get_vbox()->pack_start (opts_box, false, false);
 139
 140 #else
 141                 upper_button_box.set_homogeneous (true);
 142                 upper_button_box.set_spacing (5);
 143                 upper_button_box.set_border_width (5);
 144
 145                 upper_button_box.pack_start (quick_button, true, true);
 146                 upper_button_box.pack_start (antialias_button, true, true);
 147
 148                 quick_button.set_name (N_("TimeFXButton"));
 149                 antialias_button.set_name (N_("TimeFXButton"));
 150
 151                 get_vbox()->pack_start (upper_button_box, false, false);
 152
 153 #endif
 154                 add_button (_("Stretch/Shrink"), Gtk::RESPONSE_ACCEPT);
 155         }
 156
 157         get_vbox()->pack_start (progress_bar);
 158
 159         progress_bar.set_name (N_("TimeFXProgress"));
 160
 161         show_all_children ();
 162 }
 163
 164 gint
 165 Editor::TimeFXDialog::update_progress ()
 166 {
 167         progress_bar.set_fraction (request.progress);
 168         return !request.done;
 169 }
 170
 171 void
 172 Editor::TimeFXDialog::cancel_in_progress ()
 173 {
 174         status = -2;
 175         request.cancel = true;
 176         first_cancel.disconnect();
 177 }
 178
 179 gint
 180 Editor::TimeFXDialog::delete_in_progress (GdkEventAny* ev)
 181 {
 182         status = -2;
 183         request.cancel = true;
 184         first_delete.disconnect();
 185         return TRUE;
 186 }
 187
 188 int
 189 Editor::time_stretch (RegionSelection& regions, float fraction)
 190 {
 191         // FIXME: kludge, implement stretching of selection of both types
 192
 193         if (regions.front()->region()->data_type() == DataType::AUDIO) {
 194                 // Audio, pop up timefx dialog
 195                 return time_fx (regions, fraction, false);
 196         } else {
 197                 // MIDI, just stretch
 198                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&regions.front()->get_time_axis_view());
 199                 if (!rtv)
 200                         return -1;
 201
 202                 boost::shared_ptr<Playlist> playlist
 203                         = rtv->track()->diskstream()->playlist();
 204
 205             ARDOUR::TimeFXRequest request;
 206                 request.time_fraction = fraction;
 207                 MidiStretch stretch(*session, request);
 208                 begin_reversible_command ("midi stretch");
 209                 stretch.run(regions.front()->region());
 210                 XMLNode &before = playlist->get_state();
 211                 playlist->replace_region (regions.front()->region(), stretch.results[0],
 212                                 regions.front()->region()->position());
 213                 XMLNode &after = playlist->get_state();
 214                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
 215                 commit_reversible_command ();
 216         }
 217
 218         return 0;
 219 }
 220
 221 int
 222 Editor::pitch_shift (RegionSelection& regions, float fraction)
 223 {
 224         return time_fx (regions, fraction, true);
 225 }
 226
 227 int
 228 Editor::time_fx (RegionSelection& regions, float val, bool pitching)
 229 {
 230         delete current_timefx;
 231
 232         current_timefx = new TimeFXDialog (*this, pitching);
 233
 234         current_timefx->progress_bar.set_fraction (0.0f);
 235
 236         switch (current_timefx->run ()) {
 237         case RESPONSE_ACCEPT:
 238                 break;
 239         default:
 240                 current_timefx->hide ();
 241                 return 1;
 242         }
 243
 244         current_timefx->status = 0;
 245         current_timefx->regions = regions;
 246
 247         if (pitching) {
 248
 249                 float cents = current_timefx->pitch_octave_adjustment.get_value() * 1200.0;
 250                 float pitch_fraction;
 251                 cents += current_timefx->pitch_semitone_adjustment.get_value() * 100.0;
 252                 cents += current_timefx->pitch_cent_adjustment.get_value();
 253
 254                 if (cents == 0.0) {
 255                         // user didn't change anything
 256                         current_timefx->hide ();
 257                         return 0;
 258                 }
 259
 260                 // one octave == 1200 cents
 261                 // adding one octave doubles the frequency
 262                 // ratio is 2^^octaves
 263
 264                 pitch_fraction = pow(2, cents/1200);
 265
 266                 current_timefx->request.time_fraction = 1.0;
 267                 current_timefx->request.pitch_fraction = pitch_fraction;
 268
 269         } else {
 270
 271                 current_timefx->request.time_fraction = val;
 272                 current_timefx->request.pitch_fraction = 1.0;
 273
 274         }
 275
 276 #ifdef USE_RUBBERBAND
 277         /* parse options */
 278
 279         RubberBandStretcher::Options options = 0;
 280
 281         bool realtime = false;
 282         bool precise = false;
 283         bool peaklock = true;
 284         bool longwin = false;
 285         bool shortwin = false;
 286         bool preserve_formants = false;
 287         string txt;
 288
 289         enum {
 290                 NoTransients,
 291                 BandLimitedTransients,
 292                 Transients
 293         } transients = Transients;
 294
 295         precise = current_timefx->precise_button.get_active();
 296         preserve_formants = current_timefx->preserve_formants_button.get_active();
 297
 298         txt = current_timefx->stretch_opts_selector.get_active_text ();
 299
 300         if (txt == rb_opt_strings[0]) {
 301                 transients = NoTransients; peaklock = false; longwin = true; shortwin = false;
 302         } else if (txt == rb_opt_strings[1]) {
 303                 transients = NoTransients; peaklock = false; longwin = false; shortwin = false;
 304         } else if (txt == rb_opt_strings[2]) {
 305                 transients = NoTransients; peaklock = true; longwin = false; shortwin = false;
 306         } else if (txt == rb_opt_strings[3]) {
 307                 transients = BandLimitedTransients; peaklock = true; longwin = false; shortwin = false;
 308         } else if (txt == rb_opt_strings[5]) {
 309                 transients = Transients; peaklock = false; longwin = false; shortwin = true;
 310         } else {
 311                 /* default/4 */
 312
 313                 transients = Transients; peaklock = true; longwin = false; shortwin = false;
 314         };
 315
 316
 317         if (realtime)    options |= RubberBandStretcher::OptionProcessRealTime;
 318         if (precise)     options |= RubberBandStretcher::OptionStretchPrecise;
 319         if (preserve_formants)  options |= RubberBandStretcher::OptionFormantPreserved;
 320
 321         if (!peaklock)   options |= RubberBandStretcher::OptionPhaseIndependent;
 322         if (longwin)     options |= RubberBandStretcher::OptionWindowLong;
 323         if (shortwin)    options |= RubberBandStretcher::OptionWindowShort;
 324
 325
 326
 327         switch (transients) {
 328         case NoTransients:
 329                 options |= RubberBandStretcher::OptionTransientsSmooth;
 330                 break;
 331         case BandLimitedTransients:
 332                 options |= RubberBandStretcher::OptionTransientsMixed;
 333                 break;
 334         case Transients:
 335                 options |= RubberBandStretcher::OptionTransientsCrisp;
 336                 break;
 337         }
 338
 339         current_timefx->request.opts = (int) options;
 340 #else
 341         current_timefx->request.quick_seek = current_timefx->quick_button.get_active();
 342         current_timefx->request.antialias = !current_timefx->antialias_button.get_active();
 343 #endif
 344         current_timefx->request.progress = 0.0f;
 345         current_timefx->request.done = false;
 346         current_timefx->request.cancel = false;
 347
 348         /* re-connect the cancel button and delete events */
 349
 350         current_timefx->first_cancel.disconnect();
 351         current_timefx->first_delete.disconnect();
 352
 353         current_timefx->first_cancel = current_timefx->cancel_button->signal_clicked().connect
 354                 (mem_fun (current_timefx, &TimeFXDialog::cancel_in_progress));
 355         current_timefx->first_delete = current_timefx->signal_delete_event().connect
 356                 (mem_fun (current_timefx, &TimeFXDialog::delete_in_progress));
 357
 358         if (pthread_create_and_store ("timefx", &current_timefx->request.thread, 0, timefx_thread, current_timefx)) {
 359                 current_timefx->hide ();
 360                 error << _("timefx cannot be started - thread creation error") << endmsg;
 361                 return -1;
 362         }
 363
 364         pthread_detach (current_timefx->request.thread);
 365
 366         sigc::connection c = Glib::signal_timeout().connect (mem_fun (current_timefx, &TimeFXDialog::update_progress), 100);
 367
 368         while (!current_timefx->request.done && !current_timefx->request.cancel) {
 369                 gtk_main_iteration ();
 370         }
 371
 372         c.disconnect ();
 373
 374         current_timefx->hide ();
 375         return current_timefx->status;
 376 }
 377
 378 void
 379 Editor::do_timefx (TimeFXDialog& dialog)
 380 {
 381         Track*    t;
 382         boost::shared_ptr<Playlist> playlist;
 383         boost::shared_ptr<Region>   new_region;
 384         bool in_command = false;
 385
 386         for (RegionSelection::iterator i = dialog.regions.begin(); i != dialog.regions.end(); ) {
 387                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 388
 389                 if (!arv) {
 390                         continue;
 391                 }
 392
 393                 boost::shared_ptr<AudioRegion> region (arv->audio_region());
 394                 TimeAxisView* tv = &(arv->get_time_axis_view());
 395                 RouteTimeAxisView* rtv;
 396                 RegionSelection::iterator tmp;
 397
 398                 tmp = i;
 399                 ++tmp;
 400
 401                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv)) == 0) {
 402                         i = tmp;
 403                         continue;
 404                 }
 405
 406                 if ((t = dynamic_cast<Track*> (rtv->route().get())) == 0) {
 407                         i = tmp;
 408                         continue;
 409                 }
 410
 411                 if ((playlist = t->diskstream()->playlist()) == 0) {
 412                         i = tmp;
 413                         continue;
 414                 }
 415
 416                 if (dialog.request.cancel) {
 417                         /* we were cancelled */
 418                         dialog.status = 1;
 419                         return;
 420                 }
 421
 422                 Filter* fx;
 423
 424                 if (dialog.pitching) {
 425                         fx = new Pitch (*session, dialog.request);
 426                 } else {
 427                         fx = new Stretch (*session, dialog.request);
 428                 }
 429
 430                 if (fx->run (region)) {
 431                         dialog.status = -1;
 432                         dialog.request.done = true;
 433                         delete fx;
 434                         return;
 435                 }
 436
 437                 if (!fx->results.empty()) {
 438                         new_region = fx->results.front();
 439
 440                         if (!in_command) {
 441                                 begin_reversible_command (dialog.pitching ? _("pitch shift") : _("time stretch"));
 442                                 in_command = true;
 443                         }
 444
 445                         XMLNode &before = playlist->get_state();
 446                         playlist->replace_region (region, new_region, region->position());
 447                         XMLNode &after = playlist->get_state();
 448                         session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
 449                 }
 450
 451                 i = tmp;
 452                 delete fx;
 453         }
 454
 455         if (in_command) {
 456                 commit_reversible_command ();
 457         }
 458
 459         dialog.status = 0;
 460         dialog.request.done = true;
 461 }
 462
 463 void*
 464 Editor::timefx_thread (void *arg)
 465 {
 466         PBD::notify_gui_about_thread_creation (pthread_self(), X_("TimeFX"));
 467
 468         TimeFXDialog* tsd = static_cast<TimeFXDialog*>(arg);
 469
 470         pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
 471
 472         tsd->editor.do_timefx (*tsd);
 473
 474         return 0;
 475 }
 476