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 {
  77         set_modal (true);
  78         set_position (Gtk::WIN_POS_MOUSE);
  79         set_name (N_("TimeFXDialog"));
  80
  81         WindowTitle title(Glib::get_application_name());
  82         if (pitching) {
  83                 title += _("Pitch Shift");
  84         } else {
  85                 title += _("Time Stretch");
  86         }
  87         set_title(title.get_string());
  88
  89         cancel_button = add_button (_("Cancel"), Gtk::RESPONSE_CANCEL);
  90
  91         get_vbox()->set_spacing (5);
  92         get_vbox()->set_border_width (12);
  93
  94         if (pitching) {
  95
  96                 upper_button_box.set_spacing (5);
  97                 upper_button_box.set_border_width (5);
  98
  99                 Gtk::Label* l;
 100
 101                 l = manage (new Label (_("Octaves")));
 102                 upper_button_box.pack_start (*l, false, false);
 103                 upper_button_box.pack_start (pitch_octave_spinner, false, false);
 104
 105                 l = manage (new Label (_("Semitones (12TET)")));
 106                 upper_button_box.pack_start (*l, false, false);
 107                 upper_button_box.pack_start (pitch_semitone_spinner, false, false);
 108
 109                 l = manage (new Label (_("Cents")));
 110                 upper_button_box.pack_start (*l, false, false);
 111                 upper_button_box.pack_start (pitch_cent_spinner, false, false);
 112
 113                 pitch_cent_spinner.set_digits (1);
 114
 115                 add_button (_("Shift"), Gtk::RESPONSE_ACCEPT);
 116
 117                 get_vbox()->pack_start (upper_button_box, false, false);
 118
 119         } else {
 120
 121 #ifdef USE_RUBBERBAND
 122                 opts_box.set_spacing (5);
 123                 opts_box.set_border_width (5);
 124                 vector<string> strings;
 125
 126                 set_popdown_strings (stretch_opts_selector, editor.rb_opt_strings);
 127                 /* set default */
 128                 stretch_opts_selector.set_active_text (editor.rb_opt_strings[4]);
 129
 130                 opts_box.pack_start (precise_button, false, false);
 131                 opts_box.pack_start (stretch_opts_label, false, false);
 132                 opts_box.pack_start (stretch_opts_selector, false, false);
 133
 134                 get_vbox()->pack_start (opts_box, false, false);
 135
 136 #else
 137                 upper_button_box.set_homogeneous (true);
 138                 upper_button_box.set_spacing (5);
 139                 upper_button_box.set_border_width (5);
 140
 141                 upper_button_box.pack_start (quick_button, true, true);
 142                 upper_button_box.pack_start (antialias_button, true, true);
 143
 144                 quick_button.set_name (N_("TimeFXButton"));
 145                 antialias_button.set_name (N_("TimeFXButton"));
 146
 147                 get_vbox()->pack_start (upper_button_box, false, false);
 148
 149 #endif
 150                 add_button (_("Stretch/Shrink"), Gtk::RESPONSE_ACCEPT);
 151         }
 152
 153         get_vbox()->pack_start (progress_bar);
 154
 155         progress_bar.set_name (N_("TimeFXProgress"));
 156
 157         show_all_children ();
 158 }
 159
 160 gint
 161 Editor::TimeFXDialog::update_progress ()
 162 {
 163         progress_bar.set_fraction (request.progress);
 164         return !request.done;
 165 }
 166
 167 void
 168 Editor::TimeFXDialog::cancel_in_progress ()
 169 {
 170         status = -2;
 171         request.cancel = true;
 172         first_cancel.disconnect();
 173 }
 174
 175 gint
 176 Editor::TimeFXDialog::delete_in_progress (GdkEventAny* ev)
 177 {
 178         status = -2;
 179         request.cancel = true;
 180         first_delete.disconnect();
 181         return TRUE;
 182 }
 183
 184 int
 185 Editor::time_stretch (RegionSelection& regions, float fraction)
 186 {
 187         // FIXME: kludge, implement stretching of selection of both types
 188
 189         if (regions.front()->region()->data_type() == DataType::AUDIO) {
 190                 // Audio, pop up timefx dialog
 191                 return time_fx (regions, fraction, false);
 192         } else {
 193                 // MIDI, just stretch
 194                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&regions.front()->get_time_axis_view());
 195                 if (!rtv)
 196                         return -1;
 197
 198                 boost::shared_ptr<Playlist> playlist
 199                         = rtv->track()->diskstream()->playlist();
 200
 201             ARDOUR::TimeFXRequest request;
 202                 request.time_fraction = fraction;
 203                 MidiStretch stretch(*session, request);
 204                 begin_reversible_command ("midi stretch");
 205                 stretch.run(regions.front()->region());
 206                 XMLNode &before = playlist->get_state();
 207                 playlist->replace_region (regions.front()->region(), stretch.results[0],
 208                                 regions.front()->region()->position());
 209                 XMLNode &after = playlist->get_state();
 210                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
 211                 commit_reversible_command ();
 212         }
 213
 214         return 0;
 215 }
 216
 217 int
 218 Editor::pitch_shift (RegionSelection& regions, float fraction)
 219 {
 220         return time_fx (regions, fraction, true);
 221 }
 222
 223 int
 224 Editor::time_fx (RegionSelection& regions, float val, bool pitching)
 225 {
 226         if (current_timefx != 0) {
 227                 delete current_timefx;
 228         }
 229
 230         current_timefx = new TimeFXDialog (*this, pitching);
 231
 232         current_timefx->progress_bar.set_fraction (0.0f);
 233
 234         switch (current_timefx->run ()) {
 235         case RESPONSE_ACCEPT:
 236                 break;
 237         default:
 238                 current_timefx->hide ();
 239                 return 1;
 240         }
 241
 242         current_timefx->status = 0;
 243         current_timefx->regions = regions;
 244
 245         if (pitching) {
 246
 247                 float cents = current_timefx->pitch_octave_adjustment.get_value() * 1200.0;
 248                 float pitch_fraction;
 249                 cents += current_timefx->pitch_semitone_adjustment.get_value() * 100.0;
 250                 cents += current_timefx->pitch_cent_adjustment.get_value();
 251
 252                 if (cents == 0.0) {
 253                         // user didn't change anything
 254                         current_timefx->hide ();
 255                         return 0;
 256                 }
 257
 258                 // one octave == 1200 cents
 259                 // adding one octave doubles the frequency
 260                 // ratio is 2^^octaves
 261
 262                 pitch_fraction = pow(2, cents/1200);
 263
 264                 current_timefx->request.time_fraction = 1.0;
 265                 current_timefx->request.pitch_fraction = pitch_fraction;
 266
 267         } else {
 268
 269                 current_timefx->request.time_fraction = val;
 270                 current_timefx->request.pitch_fraction = 1.0;
 271
 272         }
 273
 274 #ifdef USE_RUBBERBAND
 275         /* parse options */
 276
 277         RubberBandStretcher::Options options = 0;
 278
 279         bool realtime = false;
 280         bool precise = false;
 281         bool peaklock = true;
 282         bool longwin = false;
 283         bool shortwin = false;
 284         string txt;
 285
 286         enum {
 287                 NoTransients,
 288                 BandLimitedTransients,
 289                 Transients
 290         } transients = Transients;
 291
 292         precise = current_timefx->precise_button.get_active();
 293
 294         txt = current_timefx->stretch_opts_selector.get_active_text ();
 295
 296         if (txt == rb_opt_strings[0]) {
 297                 transients = NoTransients; peaklock = false; longwin = true; shortwin = false;
 298         } else if (txt == rb_opt_strings[1]) {
 299                 transients = NoTransients; peaklock = false; longwin = false; shortwin = false;
 300         } else if (txt == rb_opt_strings[2]) {
 301                 transients = NoTransients; peaklock = true; longwin = false; shortwin = false;
 302         } else if (txt == rb_opt_strings[3]) {
 303                 transients = BandLimitedTransients; peaklock = true; longwin = false; shortwin = false;
 304         } else if (txt == rb_opt_strings[5]) {
 305                 transients = Transients; peaklock = false; longwin = false; shortwin = true;
 306         } else {
 307                 /* default/4 */
 308
 309                 transients = Transients; peaklock = true; longwin = false; shortwin = false;
 310         };
 311
 312
 313         if (realtime)    options |= RubberBandStretcher::OptionProcessRealTime;
 314         if (precise)     options |= RubberBandStretcher::OptionStretchPrecise;
 315         if (!peaklock)   options |= RubberBandStretcher::OptionPhaseIndependent;
 316         if (longwin)     options |= RubberBandStretcher::OptionWindowLong;
 317         if (shortwin)    options |= RubberBandStretcher::OptionWindowShort;
 318
 319         switch (transients) {
 320         case NoTransients:
 321                 options |= RubberBandStretcher::OptionTransientsSmooth;
 322                 break;
 323         case BandLimitedTransients:
 324                 options |= RubberBandStretcher::OptionTransientsMixed;
 325                 break;
 326         case Transients:
 327                 options |= RubberBandStretcher::OptionTransientsCrisp;
 328                 break;
 329         }
 330
 331         current_timefx->request.opts = (int) options;
 332 #else
 333         current_timefx->request.quick_seek = current_timefx->quick_button.get_active();
 334         current_timefx->request.antialias = !current_timefx->antialias_button.get_active();
 335 #endif
 336         current_timefx->request.progress = 0.0f;
 337         current_timefx->request.done = false;
 338         current_timefx->request.cancel = false;
 339
 340         /* re-connect the cancel button and delete events */
 341
 342         current_timefx->first_cancel.disconnect();
 343         current_timefx->first_delete.disconnect();
 344
 345         current_timefx->first_cancel = current_timefx->cancel_button->signal_clicked().connect
 346                 (mem_fun (current_timefx, &TimeFXDialog::cancel_in_progress));
 347         current_timefx->first_delete = current_timefx->signal_delete_event().connect
 348                 (mem_fun (current_timefx, &TimeFXDialog::delete_in_progress));
 349
 350         if (pthread_create_and_store ("timefx", &current_timefx->request.thread, 0, timefx_thread, current_timefx)) {
 351                 current_timefx->hide ();
 352                 error << _("timefx cannot be started - thread creation error") << endmsg;
 353                 return -1;
 354         }
 355
 356         pthread_detach (current_timefx->request.thread);
 357
 358         sigc::connection c = Glib::signal_timeout().connect (mem_fun (current_timefx, &TimeFXDialog::update_progress), 100);
 359
 360         while (!current_timefx->request.done && !current_timefx->request.cancel) {
 361                 gtk_main_iteration ();
 362         }
 363
 364         c.disconnect ();
 365
 366         current_timefx->hide ();
 367         return current_timefx->status;
 368 }
 369
 370 void
 371 Editor::do_timefx (TimeFXDialog& dialog)
 372 {
 373         Track*    t;
 374         boost::shared_ptr<Playlist> playlist;
 375         boost::shared_ptr<Region>   new_region;
 376         bool in_command = false;
 377
 378         for (RegionSelection::iterator i = dialog.regions.begin(); i != dialog.regions.end(); ) {
 379                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 380
 381                 if (!arv) {
 382                         continue;
 383                 }
 384
 385                 boost::shared_ptr<AudioRegion> region (arv->audio_region());
 386                 TimeAxisView* tv = &(arv->get_time_axis_view());
 387                 RouteTimeAxisView* rtv;
 388                 RegionSelection::iterator tmp;
 389
 390                 tmp = i;
 391                 ++tmp;
 392
 393                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv)) == 0) {
 394                         i = tmp;
 395                         continue;
 396                 }
 397
 398                 if ((t = dynamic_cast<Track*> (rtv->route().get())) == 0) {
 399                         i = tmp;
 400                         continue;
 401                 }
 402
 403                 if ((playlist = t->diskstream()->playlist()) == 0) {
 404                         i = tmp;
 405                         continue;
 406                 }
 407
 408                 if (dialog.request.cancel) {
 409                         /* we were cancelled */
 410                         dialog.status = 1;
 411                         return;
 412                 }
 413
 414                 Filter* fx;
 415
 416                 if (dialog.pitching) {
 417                         fx = new Pitch (*session, dialog.request);
 418                 } else {
 419                         fx = new Stretch (*session, dialog.request);
 420                 }
 421
 422                 if (fx->run (region)) {
 423                         dialog.status = -1;
 424                         dialog.request.done = true;
 425                         delete fx;
 426                         return;
 427                 }
 428
 429                 if (!fx->results.empty()) {
 430                         new_region = fx->results.front();
 431
 432                         if (!in_command) {
 433                                 begin_reversible_command (dialog.pitching ? _("pitch shift") : _("time stretch"));
 434                                 in_command = true;
 435                         }
 436
 437                         XMLNode &before = playlist->get_state();
 438                         playlist->replace_region (region, new_region, region->position());
 439                         XMLNode &after = playlist->get_state();
 440                         session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
 441                 }
 442
 443                 i = tmp;
 444                 delete fx;
 445         }
 446
 447         if (in_command) {
 448                 commit_reversible_command ();
 449         }
 450
 451         dialog.status = 0;
 452         dialog.request.done = true;
 453 }
 454
 455 void*
 456 Editor::timefx_thread (void *arg)
 457 {
 458         PBD::ThreadCreated (pthread_self(), X_("TimeFX"));
 459
 460         TimeFXDialog* tsd = static_cast<TimeFXDialog*>(arg);
 461
 462         pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
 463
 464         tsd->editor.do_timefx (*tsd);
 465
 466         return 0;
 467 }
 468