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 "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 sigc;
  60 using namespace Gtk;
  61 using namespace Gtkmm2ext;
  62
  63 int
  64 Editor::time_stretch (RegionSelection& regions, float fraction)
  65 {
  66         // FIXME: kludge, implement stretching of selection of both types
  67
  68         if (regions.front()->region()->data_type() == DataType::AUDIO) {
  69                 // Audio, pop up timefx dialog
  70                 return time_fx (regions, fraction, false);
  71         } else {
  72                 // MIDI, just stretch
  73                 RouteTimeAxisViewPtr rtv = boost::dynamic_pointer_cast<RouteTimeAxisView> (regions.front()->get_time_axis_view());
  74                 if (!rtv) {
  75                         return -1;
  76                 }
  77
  78                 boost::shared_ptr<Playlist> playlist
  79                         = rtv->track()->diskstream()->playlist();
  80
  81             ARDOUR::TimeFXRequest request;
  82                 request.time_fraction = fraction;
  83                 MidiStretch stretch(*session, request);
  84                 begin_reversible_command ("midi stretch");
  85                 stretch.run(regions.front()->region());
  86                 XMLNode &before = playlist->get_state();
  87                 playlist->replace_region (regions.front()->region(), stretch.results[0],
  88                                 regions.front()->region()->position());
  89                 XMLNode &after = playlist->get_state();
  90                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
  91                 commit_reversible_command ();
  92         }
  93
  94         return 0;
  95 }
  96
  97 int
  98 Editor::pitch_shift (RegionSelection& regions, float fraction)
  99 {
 100         return time_fx (regions, fraction, true);
 101 }
 102
 103 int
 104 Editor::time_fx (RegionSelection& regions, float val, bool pitching)
 105 {
 106         delete current_timefx;
 107
 108         current_timefx = new TimeFXDialog (*this, pitching);
 109
 110         current_timefx->progress_bar.set_fraction (0.0f);
 111
 112         switch (current_timefx->run ()) {
 113         case RESPONSE_ACCEPT:
 114                 break;
 115         default:
 116                 current_timefx->hide ();
 117                 return 1;
 118         }
 119
 120         current_timefx->status = 0;
 121         current_timefx->regions = regions;
 122
 123         if (pitching) {
 124
 125                 float cents = current_timefx->pitch_octave_adjustment.get_value() * 1200.0;
 126                 float pitch_fraction;
 127                 cents += current_timefx->pitch_semitone_adjustment.get_value() * 100.0;
 128                 cents += current_timefx->pitch_cent_adjustment.get_value();
 129
 130                 if (cents == 0.0) {
 131                         // user didn't change anything
 132                         current_timefx->hide ();
 133                         return 0;
 134                 }
 135
 136                 // one octave == 1200 cents
 137                 // adding one octave doubles the frequency
 138                 // ratio is 2^^octaves
 139
 140                 pitch_fraction = pow(2, cents/1200);
 141
 142                 current_timefx->request.time_fraction = 1.0;
 143                 current_timefx->request.pitch_fraction = pitch_fraction;
 144
 145         } else {
 146
 147                 current_timefx->request.time_fraction = val;
 148                 current_timefx->request.pitch_fraction = 1.0;
 149
 150         }
 151
 152 #ifdef USE_RUBBERBAND
 153         /* parse options */
 154
 155         RubberBandStretcher::Options options = 0;
 156
 157         bool realtime = false;
 158         bool precise = false;
 159         bool peaklock = true;
 160         bool longwin = false;
 161         bool shortwin = false;
 162         bool preserve_formants = false;
 163         string txt;
 164
 165         enum {
 166                 NoTransients,
 167                 BandLimitedTransients,
 168                 Transients
 169         } transients = Transients;
 170
 171         precise = current_timefx->precise_button.get_active();
 172         preserve_formants = current_timefx->preserve_formants_button.get_active();
 173
 174         txt = current_timefx->stretch_opts_selector.get_active_text ();
 175
 176         if (txt == rb_opt_strings[0]) {
 177                 transients = NoTransients; peaklock = false; longwin = true; shortwin = false;
 178         } else if (txt == rb_opt_strings[1]) {
 179                 transients = NoTransients; peaklock = false; longwin = false; shortwin = false;
 180         } else if (txt == rb_opt_strings[2]) {
 181                 transients = NoTransients; peaklock = true; longwin = false; shortwin = false;
 182         } else if (txt == rb_opt_strings[3]) {
 183                 transients = BandLimitedTransients; peaklock = true; longwin = false; shortwin = false;
 184         } else if (txt == rb_opt_strings[5]) {
 185                 transients = Transients; peaklock = false; longwin = false; shortwin = true;
 186         } else {
 187                 /* default/4 */
 188
 189                 transients = Transients; peaklock = true; longwin = false; shortwin = false;
 190         }
 191
 192         if (realtime)          options |= RubberBandStretcher::OptionProcessRealTime;
 193         if (precise)           options |= RubberBandStretcher::OptionStretchPrecise;
 194         if (preserve_formants) options |= RubberBandStretcher::OptionFormantPreserved;
 195         if (!peaklock)         options |= RubberBandStretcher::OptionPhaseIndependent;
 196         if (longwin)           options |= RubberBandStretcher::OptionWindowLong;
 197         if (shortwin)          options |= RubberBandStretcher::OptionWindowShort;
 198
 199         switch (transients) {
 200         case NoTransients:
 201                 options |= RubberBandStretcher::OptionTransientsSmooth;
 202                 break;
 203         case BandLimitedTransients:
 204                 options |= RubberBandStretcher::OptionTransientsMixed;
 205                 break;
 206         case Transients:
 207                 options |= RubberBandStretcher::OptionTransientsCrisp;
 208                 break;
 209         }
 210
 211         current_timefx->request.opts = (int) options;
 212 #else
 213         current_timefx->request.quick_seek = current_timefx->quick_button.get_active();
 214         current_timefx->request.antialias = !current_timefx->antialias_button.get_active();
 215 #endif
 216         current_timefx->request.progress = 0.0f;
 217         current_timefx->request.done = false;
 218         current_timefx->request.cancel = false;
 219
 220         /* re-connect the cancel button and delete events */
 221
 222         current_timefx->first_cancel.disconnect();
 223         current_timefx->first_delete.disconnect();
 224
 225         current_timefx->first_cancel = current_timefx->cancel_button->signal_clicked().connect
 226                 (mem_fun (current_timefx, &TimeFXDialog::cancel_in_progress));
 227         current_timefx->first_delete = current_timefx->signal_delete_event().connect
 228                 (mem_fun (current_timefx, &TimeFXDialog::delete_in_progress));
 229
 230         if (pthread_create_and_store ("timefx", &current_timefx->request.thread, 0, timefx_thread, current_timefx)) {
 231                 current_timefx->hide ();
 232                 error << _("timefx cannot be started - thread creation error") << endmsg;
 233                 return -1;
 234         }
 235
 236         pthread_detach (current_timefx->request.thread);
 237
 238         sigc::connection c = Glib::signal_timeout().connect (mem_fun (current_timefx, &TimeFXDialog::update_progress), 100);
 239
 240         while (!current_timefx->request.done && !current_timefx->request.cancel) {
 241                 gtk_main_iteration ();
 242         }
 243
 244         c.disconnect ();
 245
 246         current_timefx->hide ();
 247         return current_timefx->status;
 248 }
 249
 250 void
 251 Editor::do_timefx (TimeFXDialog& dialog)
 252 {
 253         Track*    t;
 254         boost::shared_ptr<Playlist> playlist;
 255         boost::shared_ptr<Region>   new_region;
 256         bool in_command = false;
 257
 258         for (RegionSelection::iterator i = dialog.regions.begin(); i != dialog.regions.end(); ) {
 259                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 260
 261                 if (!arv) {
 262                         continue;
 263                 }
 264
 265                 boost::shared_ptr<AudioRegion> region (arv->audio_region());
 266                 TimeAxisViewPtr tv = arv->get_time_axis_view();
 267                 RouteTimeAxisViewPtr rtv;
 268                 RegionSelection::iterator tmp;
 269
 270                 tmp = i;
 271                 ++tmp;
 272
 273                 if ((rtv = boost::dynamic_pointer_cast<RouteTimeAxisView> (tv)) == 0) {
 274                         i = tmp;
 275                         continue;
 276                 }
 277
 278                 if ((t = dynamic_cast<Track*> (rtv->route().get())) == 0) {
 279                         i = tmp;
 280                         continue;
 281                 }
 282
 283                 if ((playlist = t->diskstream()->playlist()) == 0) {
 284                         i = tmp;
 285                         continue;
 286                 }
 287
 288                 if (dialog.request.cancel) {
 289                         /* we were cancelled */
 290                         dialog.status = 1;
 291                         return;
 292                 }
 293
 294                 Filter* fx;
 295
 296                 if (dialog.pitching) {
 297                         fx = new Pitch (*session, dialog.request);
 298                 } else {
 299 #ifdef USE_RUBBERBAND
 300                         fx = new RBStretch (*session, dialog.request);
 301 #else
 302                         fx = new STStretch (*session, dialog.request);
 303 #endif
 304                 }
 305
 306                 if (fx->run (region)) {
 307                         dialog.status = -1;
 308                         dialog.request.done = true;
 309                         delete fx;
 310                         return;
 311                 }
 312
 313                 if (!fx->results.empty()) {
 314                         new_region = fx->results.front();
 315
 316                         if (!in_command) {
 317                                 session->begin_reversible_command (dialog.pitching ? _("pitch shift") : _("time stretch"));
 318                                 in_command = true;
 319                         }
 320
 321                         XMLNode &before = playlist->get_state();
 322                         playlist->replace_region (region, new_region, region->position());
 323                         XMLNode &after = playlist->get_state();
 324                         session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
 325                 }
 326
 327                 i = tmp;
 328                 delete fx;
 329         }
 330
 331         if (in_command) {
 332                 session->commit_reversible_command ();
 333         }
 334
 335         dialog.status = 0;
 336         dialog.request.done = true;
 337 }
 338
 339 void*
 340 Editor::timefx_thread (void *arg)
 341 {
 342         PBD::notify_gui_about_thread_creation (pthread_self(), X_("TimeFX"));
 343
 344         TimeFXDialog* tsd = static_cast<TimeFXDialog*>(arg);
 345
 346         pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
 347
 348         tsd->editor.do_timefx (*tsd);
 349
 350         return 0;
 351 }
 352