2 Copyright (C) 2000 Paul Davis
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.
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.
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.
26 #include <pbd/error.h>
27 #include <pbd/pthread_utils.h>
30 #include "audio_time_axis.h"
31 #include "audio_regionview.h"
32 #include "region_selection.h"
34 #include <ardour/session.h>
35 #include <ardour/region.h>
36 #include <ardour/audioplaylist.h>
37 #include <ardour/audio_track.h>
38 #include <ardour/audioregion.h>
39 #include <ardour/audio_diskstream.h>
43 using namespace ARDOUR;
48 Editor::TimeStretchDialog::TimeStretchDialog (Editor& e)
49 : ArdourDialog ("time stretch dialog"),
51 quick_button (_("Quick but Ugly")),
52 antialias_button (_("Skip Anti-aliasing"))
55 set_position (Gtk::WIN_POS_MOUSE);
56 set_title (_("ardour: timestretch"));
57 set_name (N_("TimeStretchDialog"));
59 get_vbox()->set_spacing (5);
60 get_vbox()->set_border_width (5);
61 get_vbox()->pack_start (upper_button_box);
62 get_vbox()->pack_start (progress_bar);
64 upper_button_box.set_homogeneous (true);
65 upper_button_box.set_spacing (5);
66 upper_button_box.set_border_width (5);
67 upper_button_box.pack_start (quick_button, true, true);
68 upper_button_box.pack_start (antialias_button, true, true);
70 action_button = add_button (_("Stretch/Shrink it"), Gtk::RESPONSE_ACCEPT);
71 cancel_button = add_button (_("Cancel"), Gtk::RESPONSE_CANCEL);
73 quick_button.set_name (N_("TimeStretchButton"));
74 antialias_button.set_name (N_("TimeStretchButton"));
75 progress_bar.set_name (N_("TimeStretchProgress"));
81 Editor::TimeStretchDialog::update_progress ()
83 progress_bar.set_fraction (request.progress);
84 return request.running;
88 Editor::TimeStretchDialog::cancel_timestretch_in_progress ()
91 request.running = false;
95 Editor::TimeStretchDialog::delete_timestretch_in_progress (GdkEventAny* ev)
98 request.running = false;
103 Editor::run_timestretch (RegionSelection& regions, float fraction)
107 if (current_timestretch == 0) {
108 current_timestretch = new TimeStretchDialog (*this);
111 current_timestretch->progress_bar.set_fraction (0.0f);
113 switch (current_timestretch->run ()) {
114 case RESPONSE_ACCEPT:
117 current_timestretch->hide ();
121 current_timestretch->status = 0;
122 current_timestretch->regions = regions;
123 current_timestretch->request.fraction = fraction;
124 current_timestretch->request.quick_seek = current_timestretch->quick_button.get_active();
125 current_timestretch->request.antialias = !current_timestretch->antialias_button.get_active();
126 current_timestretch->request.progress = 0.0f;
127 current_timestretch->request.running = true;
129 /* re-connect the cancel button and delete events */
131 current_timestretch->first_cancel.disconnect();
132 current_timestretch->first_delete.disconnect();
134 current_timestretch->cancel_button->signal_clicked().connect (mem_fun (current_timestretch, &TimeStretchDialog::cancel_timestretch_in_progress));
135 current_timestretch->signal_delete_event().connect (mem_fun (current_timestretch, &TimeStretchDialog::delete_timestretch_in_progress));
137 if (pthread_create_and_store ("timestretch", &thread, 0, timestretch_thread, current_timestretch)) {
138 current_timestretch->hide ();
139 error << _("timestretch cannot be started - thread creation error") << endmsg;
143 pthread_detach (thread);
145 sigc::connection c = Glib::signal_timeout().connect (mem_fun (current_timestretch, &TimeStretchDialog::update_progress), 100);
147 while (current_timestretch->request.running) {
148 gtk_main_iteration ();
153 current_timestretch->hide ();
154 return current_timestretch->status;
158 Editor::do_timestretch (TimeStretchDialog& dialog)
165 for (RegionSelection::iterator i = dialog.regions.begin(); i != dialog.regions.end(); ) {
166 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
170 AudioRegion& region (arv->audio_region());
171 TimeAxisView* tv = &(arv->get_time_axis_view());
172 RouteTimeAxisView* rtv;
173 RegionSelection::iterator tmp;
175 cerr << "stretch " << region.name() << endl;
180 if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv)) == 0) {
185 if ((t = dynamic_cast<Track*> (rtv->route().get())) == 0) {
190 if ((playlist = t->diskstream().playlist()) == 0) {
195 dialog.request.region = ®ion;
197 if (!dialog.request.running) {
198 /* we were cancelled */
203 if ((new_region = session->tempoize_region (dialog.request)) == 0) {
205 dialog.request.running = false;
209 session->add_undo (playlist->get_memento());
210 playlist->replace_region (region, *new_region, region.position());
211 session->add_redo_no_execute (playlist->get_memento());
217 dialog.request.running = false;
221 Editor::timestretch_thread (void *arg)
223 PBD::ThreadCreated (pthread_self(), X_("TimeFX"));
225 TimeStretchDialog* tsd = static_cast<TimeStretchDialog*>(arg);
227 pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
229 tsd->editor.do_timestretch (*tsd);