415 lines
11 KiB
C++
415 lines
11 KiB
C++
/*
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Copyright (C) 2000 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <iostream>
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#include <cstdlib>
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#include <cmath>
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#include <ctime>
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#include <string>
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#include <set>
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#include "pbd/error.h"
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#include "pbd/pthread_utils.h"
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#include "pbd/memento_command.h"
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#include "pbd/stateful_diff_command.h"
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#include <gtkmm2ext/utils.h>
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#include "audio_region_view.h"
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#include "audio_time_axis.h"
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#include "editor.h"
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#include "region_selection.h"
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#include "time_fx_dialog.h"
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#include "ardour/audioregion.h"
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#include "ardour/midi_stretch.h"
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#include "ardour/pitch.h"
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#include "ardour/region.h"
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#include "ardour/session.h"
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#include "ardour/stretch.h"
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#ifdef USE_RUBBERBAND
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#include <rubberband/RubberBandStretcher.h>
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using namespace RubberBand;
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#endif
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#include "i18n.h"
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using namespace std;
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using namespace ARDOUR;
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using namespace PBD;
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using namespace Gtk;
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using namespace Gtkmm2ext;
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/** @return -1 in case of error, 1 if operation was cancelled by the user, 0 if everything went ok */
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int
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Editor::time_stretch (RegionSelection& regions, float fraction)
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{
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RegionList audio;
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RegionList midi;
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int aret;
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begin_reversible_command (_("stretch/shrink"));
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for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ++i) {
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if ((*i)->region()->data_type() == DataType::AUDIO) {
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audio.push_back ((*i)->region());
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} else if ((*i)->region()->data_type() == DataType::MIDI) {
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midi.push_back ((*i)->region());
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}
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}
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if ((aret = time_fx (audio, fraction, false)) != 0) {
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commit_reversible_command ();
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return aret;
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}
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set<boost::shared_ptr<Playlist> > midi_playlists_affected;
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for (RegionList::iterator i = midi.begin(); i != midi.end(); ++i) {
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boost::shared_ptr<Playlist> playlist = (*i)->playlist();
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if (playlist) {
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playlist->clear_changes ();
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}
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}
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ARDOUR::TimeFXRequest request;
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request.time_fraction = fraction;
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for (RegionList::iterator i = midi.begin(); i != midi.end(); ++i) {
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boost::shared_ptr<Playlist> playlist = (*i)->playlist();
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if (!playlist) {
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continue;
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}
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MidiStretch stretch (*_session, request);
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stretch.run (*i);
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playlist->replace_region (regions.front()->region(), stretch.results[0],
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regions.front()->region()->position());
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midi_playlists_affected.insert (playlist);
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}
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for (set<boost::shared_ptr<Playlist> >::iterator p = midi_playlists_affected.begin(); p != midi_playlists_affected.end(); ++p) {
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_session->add_command (new StatefulDiffCommand (*p));
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}
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commit_reversible_command ();
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return 0;
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}
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int
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Editor::pitch_shift (RegionSelection& regions, float fraction)
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{
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RegionList rl;
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for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ++i) {
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rl.push_back ((*i)->region());
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}
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begin_reversible_command (_("pitch shift"));
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int ret = time_fx (rl, fraction, true);
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if (ret == 0) {
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commit_reversible_command ();
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}
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return ret;
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}
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/** @param val Percentage to time stretch by; ignored if pitch-shifting.
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* @param pitching true to pitch shift, false to time stretch.
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* @return -1 in case of error, 1 if operation was cancelled by the user, 0 if everything went ok */
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int
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Editor::time_fx (RegionList& regions, float val, bool pitching)
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{
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delete current_timefx;
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current_timefx = new TimeFXDialog (*this, pitching);
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current_timefx->regions = regions;
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/* See if we have any audio regions on our list */
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RegionList::iterator i = regions.begin ();
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while (i != regions.end() && boost::dynamic_pointer_cast<AudioRegion> (*i) == 0) {
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++i;
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}
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if (i == regions.end ()) {
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/* No audio regions; we can just do the timefx without a dialogue */
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do_timefx ();
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return 0;
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}
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switch (current_timefx->run ()) {
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case RESPONSE_ACCEPT:
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break;
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default:
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current_timefx->hide ();
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return 1;
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}
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current_timefx->status = 0;
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if (pitching) {
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float cents = current_timefx->pitch_octave_adjustment.get_value() * 1200.0;
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float pitch_fraction;
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cents += current_timefx->pitch_semitone_adjustment.get_value() * 100.0;
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cents += current_timefx->pitch_cent_adjustment.get_value();
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if (cents == 0.0) {
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// user didn't change anything
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current_timefx->hide ();
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return 0;
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}
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// one octave == 1200 cents
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// adding one octave doubles the frequency
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// ratio is 2^^octaves
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pitch_fraction = pow(2, cents/1200);
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current_timefx->request.time_fraction = 1.0;
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current_timefx->request.pitch_fraction = pitch_fraction;
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} else {
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current_timefx->request.time_fraction = val;
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current_timefx->request.pitch_fraction = 1.0;
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}
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#ifdef USE_RUBBERBAND
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/* parse options */
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RubberBandStretcher::Options options = 0;
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bool realtime = false;
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bool precise = false;
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bool peaklock = true;
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bool longwin = false;
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bool shortwin = false;
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bool preserve_formants = false;
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string txt;
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enum {
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NoTransients,
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BandLimitedTransients,
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Transients
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} transients = Transients;
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precise = current_timefx->precise_button.get_active();
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preserve_formants = current_timefx->preserve_formants_button.get_active();
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txt = current_timefx->stretch_opts_selector.get_active_text ();
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for (int i = 0; i <= 6; i++) {
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if (txt == rb_opt_strings[i]) {
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rb_current_opt = i;
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break;
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}
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}
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switch (rb_current_opt) {
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case 0:
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transients = NoTransients; peaklock = false; longwin = true; shortwin = false;
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break;
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case 1:
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transients = NoTransients; peaklock = false; longwin = false; shortwin = false;
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break;
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case 2:
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transients = NoTransients; peaklock = true; longwin = false; shortwin = false;
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break;
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case 3:
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transients = BandLimitedTransients; peaklock = true; longwin = false; shortwin = false;
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break;
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case 5:
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transients = Transients; peaklock = false; longwin = false; shortwin = true;
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break;
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case 6:
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transients = NoTransients;
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precise = true;
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preserve_formants = false;
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current_timefx->request.pitch_fraction = 1/val;
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shortwin = true;
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// peaklock = false;
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break;
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default:
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/* default/4 */
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transients = Transients; peaklock = true; longwin = false; shortwin = false;
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break;
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};
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if (realtime) options |= RubberBandStretcher::OptionProcessRealTime;
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if (precise) options |= RubberBandStretcher::OptionStretchPrecise;
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if (preserve_formants) options |= RubberBandStretcher::OptionFormantPreserved;
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if (!peaklock) options |= RubberBandStretcher::OptionPhaseIndependent;
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if (longwin) options |= RubberBandStretcher::OptionWindowLong;
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if (shortwin) options |= RubberBandStretcher::OptionWindowShort;
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switch (transients) {
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case NoTransients:
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options |= RubberBandStretcher::OptionTransientsSmooth;
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break;
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case BandLimitedTransients:
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options |= RubberBandStretcher::OptionTransientsMixed;
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break;
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case Transients:
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options |= RubberBandStretcher::OptionTransientsCrisp;
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break;
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}
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current_timefx->request.opts = (int) options;
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#else
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current_timefx->request.quick_seek = current_timefx->quick_button.get_active();
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current_timefx->request.antialias = !current_timefx->antialias_button.get_active();
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#endif
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current_timefx->request.done = false;
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current_timefx->request.cancel = false;
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/* re-connect the cancel button and delete events */
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current_timefx->first_cancel.disconnect();
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current_timefx->first_delete.disconnect();
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current_timefx->first_cancel = current_timefx->cancel_button->signal_clicked().connect
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(sigc::mem_fun (current_timefx, &TimeFXDialog::cancel_in_progress));
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current_timefx->first_delete = current_timefx->signal_delete_event().connect
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(sigc::mem_fun (current_timefx, &TimeFXDialog::delete_in_progress));
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if (pthread_create_and_store ("timefx", ¤t_timefx->request.thread, timefx_thread, current_timefx)) {
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current_timefx->hide ();
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error << _("timefx cannot be started - thread creation error") << endmsg;
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return -1;
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}
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pthread_detach (current_timefx->request.thread);
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while (!current_timefx->request.done && !current_timefx->request.cancel) {
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gtk_main_iteration ();
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}
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pthread_join (current_timefx->request.thread, 0);
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current_timefx->hide ();
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return current_timefx->status;
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}
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void
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Editor::do_timefx ()
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{
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boost::shared_ptr<Playlist> playlist;
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boost::shared_ptr<Region> new_region;
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set<boost::shared_ptr<Playlist> > playlists_affected;
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uint32_t const N = current_timefx->regions.size ();
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for (RegionList::iterator i = current_timefx->regions.begin(); i != current_timefx->regions.end(); ++i) {
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boost::shared_ptr<Playlist> playlist = (*i)->playlist();
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if (playlist) {
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playlist->clear_changes ();
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}
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}
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for (RegionList::iterator i = current_timefx->regions.begin(); i != current_timefx->regions.end(); ++i) {
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boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (*i);
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if (!region || (playlist = region->playlist()) == 0) {
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continue;
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}
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if (current_timefx->request.cancel) {
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/* we were cancelled */
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/* XXX what to do about playlists already affected ? */
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current_timefx->status = 1;
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return;
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}
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Filter* fx;
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if (current_timefx->pitching) {
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fx = new Pitch (*_session, current_timefx->request);
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} else {
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#ifdef USE_RUBBERBAND
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fx = new RBStretch (*_session, current_timefx->request);
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#else
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fx = new STStretch (*_session, current_timefx->request);
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#endif
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}
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current_timefx->descend (1.0 / N);
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if (fx->run (region, current_timefx)) {
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current_timefx->status = -1;
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current_timefx->request.done = true;
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delete fx;
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return;
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}
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if (!fx->results.empty()) {
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new_region = fx->results.front();
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playlist->replace_region (region, new_region, region->position());
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playlists_affected.insert (playlist);
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}
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current_timefx->ascend ();
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delete fx;
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}
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for (set<boost::shared_ptr<Playlist> >::iterator p = playlists_affected.begin(); p != playlists_affected.end(); ++p) {
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_session->add_command (new StatefulDiffCommand (*p));
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}
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current_timefx->status = 0;
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current_timefx->request.done = true;
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}
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void*
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Editor::timefx_thread (void *arg)
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{
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SessionEvent::create_per_thread_pool ("timefx events", 64);
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TimeFXDialog* tsd = static_cast<TimeFXDialog*>(arg);
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pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
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tsd->editor.do_timefx ();
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/* GACK! HACK! sleep for a bit so that our request buffer for the GUI
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event loop doesn't die before any changes we made are processed
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by the GUI ...
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*/
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#ifdef PLATFORM_WINDOWS
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Glib::usleep(2 * G_USEC_PER_SEC);
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#else
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struct timespec t = { 2, 0 };
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nanosleep (&t, 0);
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#endif
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return 0;
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}
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