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>
28 #include <pbd/memento_command.h>
31 #include "audio_time_axis.h"
32 #include "audio_region_view.h"
33 #include "region_selection.h"
35 #include <ardour/session.h>
36 #include <ardour/region.h>
37 #include <ardour/audioplaylist.h>
38 #include <ardour/audio_track.h>
39 #include <ardour/audioregion.h>
40 #include <ardour/audio_diskstream.h>
44 using namespace ARDOUR;
49 Editor::TimeStretchDialog::TimeStretchDialog (Editor& e)
50 : ArdourDialog ("time stretch dialog"),
52 quick_button (_("Quick but Ugly")),
53 antialias_button (_("Skip Anti-aliasing"))
56 set_position (Gtk::WIN_POS_MOUSE);
57 set_title (_("ardour: timestretch"));
58 set_name (N_("TimeStretchDialog"));
60 get_vbox()->set_spacing (5);
61 get_vbox()->set_border_width (5);
62 get_vbox()->pack_start (upper_button_box);
63 get_vbox()->pack_start (progress_bar);
65 upper_button_box.set_homogeneous (true);
66 upper_button_box.set_spacing (5);
67 upper_button_box.set_border_width (5);
68 upper_button_box.pack_start (quick_button, true, true);
69 upper_button_box.pack_start (antialias_button, true, true);
71 action_button = add_button (_("Stretch/Shrink it"), Gtk::RESPONSE_ACCEPT);
72 cancel_button = add_button (_("Cancel"), Gtk::RESPONSE_CANCEL);
74 quick_button.set_name (N_("TimeStretchButton"));
75 antialias_button.set_name (N_("TimeStretchButton"));
76 progress_bar.set_name (N_("TimeStretchProgress"));
82 Editor::TimeStretchDialog::update_progress ()
84 progress_bar.set_fraction (request.progress);
85 return request.running;
89 Editor::TimeStretchDialog::cancel_timestretch_in_progress ()
92 request.running = false;
96 Editor::TimeStretchDialog::delete_timestretch_in_progress (GdkEventAny* ev)
99 request.running = false;
104 Editor::run_timestretch (RegionSelection& regions, float fraction)
108 if (current_timestretch == 0) {
109 current_timestretch = new TimeStretchDialog (*this);
112 current_timestretch->progress_bar.set_fraction (0.0f);
114 switch (current_timestretch->run ()) {
115 case RESPONSE_ACCEPT:
118 current_timestretch->hide ();
122 current_timestretch->status = 0;
123 current_timestretch->regions = regions;
124 current_timestretch->request.fraction = fraction;
125 current_timestretch->request.quick_seek = current_timestretch->quick_button.get_active();
126 current_timestretch->request.antialias = !current_timestretch->antialias_button.get_active();
127 current_timestretch->request.progress = 0.0f;
128 current_timestretch->request.running = true;
130 /* re-connect the cancel button and delete events */
132 current_timestretch->first_cancel.disconnect();
133 current_timestretch->first_delete.disconnect();
135 current_timestretch->cancel_button->signal_clicked().connect (mem_fun (current_timestretch, &TimeStretchDialog::cancel_timestretch_in_progress));
136 current_timestretch->signal_delete_event().connect (mem_fun (current_timestretch, &TimeStretchDialog::delete_timestretch_in_progress));
138 if (pthread_create_and_store ("timestretch", &thread, 0, timestretch_thread, current_timestretch)) {
139 current_timestretch->hide ();
140 error << _("timestretch cannot be started - thread creation error") << endmsg;
144 pthread_detach (thread);
146 sigc::connection c = Glib::signal_timeout().connect (mem_fun (current_timestretch, &TimeStretchDialog::update_progress), 100);
148 while (current_timestretch->request.running) {
149 gtk_main_iteration ();
154 current_timestretch->hide ();
155 return current_timestretch->status;
159 Editor::do_timestretch (TimeStretchDialog& dialog)
163 boost::shared_ptr<Region> new_region;
165 for (RegionSelection::iterator i = dialog.regions.begin(); i != dialog.regions.end(); ) {
166 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
170 boost::shared_ptr<AudioRegion> region (arv->audio_region());
171 TimeAxisView* tv = &(arv->get_time_axis_view());
172 RouteTimeAxisView* rtv;
173 RegionSelection::iterator tmp;
178 if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv)) == 0) {
183 if ((t = dynamic_cast<Track*> (rtv->route().get())) == 0) {
188 if ((playlist = t->diskstream()->playlist()) == 0) {
193 dialog.request.region = region;
195 if (!dialog.request.running) {
196 /* we were cancelled */
201 if ((new_region = session->tempoize_region (dialog.request)) == 0) {
203 dialog.request.running = false;
207 XMLNode &before = playlist->get_state();
208 playlist->replace_region (region, new_region, region->position());
209 XMLNode &after = playlist->get_state();
210 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
216 dialog.request.running = false;
217 dialog.request.region.reset ();
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);