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 #include "pbd/stateful_diff_command.h"
  30
  31 #include <gtkmm2ext/utils.h>
  32
  33 #include "audio_region_view.h"
  34 #include "audio_time_axis.h"
  35 #include "editor.h"
  36 #include "region_selection.h"
  37 #include "time_fx_dialog.h"
  38
  39 #include "ardour/session.h"
  40 #include "ardour/region.h"
  41 #include "ardour/audioplaylist.h"
  42 #include "ardour/audio_track.h"
  43 #include "ardour/audioregion.h"
  44 #include "ardour/audio_diskstream.h"
  45 #include "ardour/stretch.h"
  46 #include "ardour/midi_stretch.h"
  47 #include "ardour/pitch.h"
  48
  49 #ifdef USE_RUBBERBAND
  50 #include "rubberband/RubberBandStretcher.h"
  51 using namespace RubberBand;
  52 #endif
  53
  54 #include "i18n.h"
  55
  56 using namespace std;
  57 using namespace ARDOUR;
  58 using namespace PBD;
  59 using namespace Gtk;
  60 using namespace Gtkmm2ext;
  61
  62 int
  63 Editor::time_stretch (RegionSelection& regions, float fraction)
  64 {
  65         // FIXME: kludge, implement stretching of selection of both types
  66
  67         if (regions.front()->region()->data_type() == DataType::AUDIO) {
  68                 // Audio, pop up timefx dialog
  69                 return time_fx (regions, fraction, false);
  70         } else {
  71                 // MIDI, just stretch
  72                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&regions.front()->get_time_axis_view());
  73                 if (!rtv)
  74                         return -1;
  75
  76                 boost::shared_ptr<Playlist> playlist
  77                         = rtv->track()->diskstream()->playlist();
  78
  79             ARDOUR::TimeFXRequest request;
  80                 request.time_fraction = fraction;
  81                 MidiStretch stretch(*_session, request);
  82                 begin_reversible_command ("midi stretch");
  83                 stretch.run(regions.front()->region());
  84                 playlist->clear_history ();
  85                 playlist->replace_region (regions.front()->region(), stretch.results[0],
  86                                 regions.front()->region()->position());
  87                 _session->add_command (new StatefulDiffCommand (playlist));
  88                 commit_reversible_command ();
  89         }
  90
  91         return 0;
  92 }
  93
  94 int
  95 Editor::pitch_shift (RegionSelection& regions, float fraction)
  96 {
  97         return time_fx (regions, fraction, true);
  98 }
  99
 100 int
 101 Editor::time_fx (RegionSelection& regions, float val, bool pitching)
 102 {
 103         delete current_timefx;
 104
 105         current_timefx = new TimeFXDialog (*this, pitching);
 106
 107         current_timefx->progress_bar.set_fraction (0.0f);
 108
 109         switch (current_timefx->run ()) {
 110         case RESPONSE_ACCEPT:
 111                 break;
 112         default:
 113                 current_timefx->hide ();
 114                 return 1;
 115         }
 116
 117         current_timefx->status = 0;
 118         current_timefx->regions = regions;
 119
 120         if (pitching) {
 121
 122                 float cents = current_timefx->pitch_octave_adjustment.get_value() * 1200.0;
 123                 float pitch_fraction;
 124                 cents += current_timefx->pitch_semitone_adjustment.get_value() * 100.0;
 125                 cents += current_timefx->pitch_cent_adjustment.get_value();
 126
 127                 if (cents == 0.0) {
 128                         // user didn't change anything
 129                         current_timefx->hide ();
 130                         return 0;
 131                 }
 132
 133                 // one octave == 1200 cents
 134                 // adding one octave doubles the frequency
 135                 // ratio is 2^^octaves
 136
 137                 pitch_fraction = pow(2, cents/1200);
 138
 139                 current_timefx->request.time_fraction = 1.0;
 140                 current_timefx->request.pitch_fraction = pitch_fraction;
 141
 142         } else {
 143
 144                 current_timefx->request.time_fraction = val;
 145                 current_timefx->request.pitch_fraction = 1.0;
 146
 147         }
 148
 149 #ifdef USE_RUBBERBAND
 150         /* parse options */
 151
 152         RubberBandStretcher::Options options = 0;
 153
 154         bool realtime = false;
 155         bool precise = false;
 156         bool peaklock = true;
 157         bool longwin = false;
 158         bool shortwin = false;
 159         bool preserve_formants = false;
 160         string txt;
 161
 162         enum {
 163                 NoTransients,
 164                 BandLimitedTransients,
 165                 Transients
 166         } transients = Transients;
 167
 168         precise = current_timefx->precise_button.get_active();
 169         preserve_formants = current_timefx->preserve_formants_button.get_active();
 170
 171         txt = current_timefx->stretch_opts_selector.get_active_text ();
 172
 173         if (txt == rb_opt_strings[0]) {
 174                 transients = NoTransients; peaklock = false; longwin = true; shortwin = false;
 175         } else if (txt == rb_opt_strings[1]) {
 176                 transients = NoTransients; peaklock = false; longwin = false; shortwin = false;
 177         } else if (txt == rb_opt_strings[2]) {
 178                 transients = NoTransients; peaklock = true; longwin = false; shortwin = false;
 179         } else if (txt == rb_opt_strings[3]) {
 180                 transients = BandLimitedTransients; peaklock = true; longwin = false; shortwin = false;
 181         } else if (txt == rb_opt_strings[5]) {
 182                 transients = Transients; peaklock = false; longwin = false; shortwin = true;
 183         } else {
 184                 /* default/4 */
 185
 186                 transients = Transients; peaklock = true; longwin = false; shortwin = false;
 187         }
 188
 189         if (realtime)          options |= RubberBandStretcher::OptionProcessRealTime;
 190         if (precise)           options |= RubberBandStretcher::OptionStretchPrecise;
 191         if (preserve_formants) options |= RubberBandStretcher::OptionFormantPreserved;
 192         if (!peaklock)         options |= RubberBandStretcher::OptionPhaseIndependent;
 193         if (longwin)           options |= RubberBandStretcher::OptionWindowLong;
 194         if (shortwin)          options |= RubberBandStretcher::OptionWindowShort;
 195
 196         switch (transients) {
 197         case NoTransients:
 198                 options |= RubberBandStretcher::OptionTransientsSmooth;
 199                 break;
 200         case BandLimitedTransients:
 201                 options |= RubberBandStretcher::OptionTransientsMixed;
 202                 break;
 203         case Transients:
 204                 options |= RubberBandStretcher::OptionTransientsCrisp;
 205                 break;
 206         }
 207
 208         current_timefx->request.opts = (int) options;
 209 #else
 210         current_timefx->request.quick_seek = current_timefx->quick_button.get_active();
 211         current_timefx->request.antialias = !current_timefx->antialias_button.get_active();
 212 #endif
 213         current_timefx->request.progress = 0.0f;
 214         current_timefx->request.done = false;
 215         current_timefx->request.cancel = false;
 216
 217         /* re-connect the cancel button and delete events */
 218
 219         current_timefx->first_cancel.disconnect();
 220         current_timefx->first_delete.disconnect();
 221
 222         current_timefx->first_cancel = current_timefx->cancel_button->signal_clicked().connect
 223                 (sigc::mem_fun (current_timefx, &TimeFXDialog::cancel_in_progress));
 224         current_timefx->first_delete = current_timefx->signal_delete_event().connect
 225                 (sigc::mem_fun (current_timefx, &TimeFXDialog::delete_in_progress));
 226
 227         if (pthread_create_and_store ("timefx", &current_timefx->request.thread, timefx_thread, current_timefx)) {
 228                 current_timefx->hide ();
 229                 error << _("timefx cannot be started - thread creation error") << endmsg;
 230                 return -1;
 231         }
 232
 233         pthread_detach (current_timefx->request.thread);
 234
 235         sigc::connection c = Glib::signal_timeout().connect (sigc::mem_fun (current_timefx, &TimeFXDialog::update_progress), 100);
 236
 237         while (!current_timefx->request.done && !current_timefx->request.cancel) {
 238                 gtk_main_iteration ();
 239         }
 240
 241         c.disconnect ();
 242
 243         current_timefx->hide ();
 244         return current_timefx->status;
 245 }
 246
 247 void
 248 Editor::do_timefx (TimeFXDialog& dialog)
 249 {
 250         Track*    t;
 251         boost::shared_ptr<Playlist> playlist;
 252         boost::shared_ptr<Region>   new_region;
 253         bool in_command = false;
 254
 255         for (RegionSelection::iterator i = dialog.regions.begin(); i != dialog.regions.end(); ) {
 256                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 257
 258                 if (!arv) {
 259                         continue;
 260                 }
 261
 262                 boost::shared_ptr<AudioRegion> region (arv->audio_region());
 263                 TimeAxisView* tv = &(arv->get_time_axis_view());
 264                 RouteTimeAxisView* rtv;
 265                 RegionSelection::iterator tmp;
 266
 267                 tmp = i;
 268                 ++tmp;
 269
 270                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv)) == 0) {
 271                         i = tmp;
 272                         continue;
 273                 }
 274
 275                 if ((t = dynamic_cast<Track*> (rtv->route().get())) == 0) {
 276                         i = tmp;
 277                         continue;
 278                 }
 279
 280                 if ((playlist = t->diskstream()->playlist()) == 0) {
 281                         i = tmp;
 282                         continue;
 283                 }
 284
 285                 if (dialog.request.cancel) {
 286                         /* we were cancelled */
 287                         dialog.status = 1;
 288                         return;
 289                 }
 290
 291                 Filter* fx;
 292
 293                 if (dialog.pitching) {
 294                         fx = new Pitch (*_session, dialog.request);
 295                 } else {
 296 #ifdef USE_RUBBERBAND
 297                         fx = new RBStretch (*_session, dialog.request);
 298 #else
 299                         fx = new STStretch (*_session, dialog.request);
 300 #endif
 301                 }
 302
 303                 if (fx->run (region)) {
 304                         dialog.status = -1;
 305                         dialog.request.done = true;
 306                         delete fx;
 307                         return;
 308                 }
 309
 310                 if (!fx->results.empty()) {
 311                         new_region = fx->results.front();
 312
 313                         if (!in_command) {
 314                                 _session->begin_reversible_command (dialog.pitching ? _("pitch shift") : _("time stretch"));
 315                                 in_command = true;
 316                         }
 317
 318                         playlist->clear_history ();
 319                         playlist->replace_region (region, new_region, region->position());
 320                         _session->add_command (new StatefulDiffCommand (playlist));
 321                 }
 322
 323                 i = tmp;
 324                 delete fx;
 325         }
 326
 327         if (in_command) {
 328                 _session->commit_reversible_command ();
 329         }
 330
 331         dialog.status = 0;
 332         dialog.request.done = true;
 333 }
 334
 335 void*
 336 Editor::timefx_thread (void *arg)
 337 {
 338         SessionEvent::create_per_thread_pool ("timefx events", 64);
 339
 340         TimeFXDialog* tsd = static_cast<TimeFXDialog*>(arg);
 341
 342         pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
 343
 344         tsd->editor.do_timefx (*tsd);
 345
 346         return 0;
 347 }
 348