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