2 Copyright (C) 2009 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.
22 #include <gtkmm/table.h>
23 #include <gtkmm/label.h>
24 #include <gtkmm/stock.h>
26 #include "ardour/audioregion.h"
27 #include "ardour/dB.h"
28 #include "ardour_ui.h"
30 #include "audio_clock.h"
31 #include "gui_thread.h"
32 #include "strip_silence_dialog.h"
33 #include "region_view.h"
34 #include "rgb_macros.h"
38 using namespace ARDOUR;
40 using namespace ArdourCanvas;
42 /** Construct Strip silence dialog box */
43 StripSilenceDialog::StripSilenceDialog (Session* s, list<RegionView*> const & v)
44 : ArdourDialog (_("Strip Silence"))
46 , _minimum_length (new AudioClock (X_("silence duration"), true, "", true, false, true, false))
47 , _fade_length (new AudioClock (X_("silence duration"), true, "", true, false, true, false))
52 for (list<RegionView*>::const_iterator r = v.begin(); r != v.end(); ++r) {
53 views.push_back (ViewInterval (*r));
56 Gtk::HBox* hbox = Gtk::manage (new Gtk::HBox);
58 Gtk::Table* table = Gtk::manage (new Gtk::Table (3, 3));
59 table->set_spacings (6);
63 table->attach (*Gtk::manage (new Gtk::Label (_("Threshold"), 1, 0.5)), 0, 1, n, n + 1, Gtk::FILL);
64 table->attach (_threshold, 1, 2, n, n + 1, Gtk::FILL);
65 table->attach (*Gtk::manage (new Gtk::Label (_("dbFS"))), 2, 3, n, n + 1, Gtk::FILL);
68 _threshold.set_digits (1);
69 _threshold.set_increments (1, 10);
70 _threshold.set_range (-120, 0);
71 _threshold.set_value (-60);
72 _threshold.set_activates_default ();
74 table->attach (*Gtk::manage (new Gtk::Label (_("Minimum length"), 1, 0.5)), 0, 1, n, n + 1, Gtk::FILL);
75 table->attach (*_minimum_length, 1, 2, n, n + 1, Gtk::FILL);
78 _minimum_length->set_session (s);
79 _minimum_length->set_mode (AudioClock::Frames);
80 _minimum_length->set (1000, true);
82 table->attach (*Gtk::manage (new Gtk::Label (_("Fade length"), 1, 0.5)), 0, 1, n, n + 1, Gtk::FILL);
83 table->attach (*_fade_length, 1, 2, n, n + 1, Gtk::FILL);
86 _fade_length->set_session (s);
87 _fade_length->set_mode (AudioClock::Frames);
88 _fade_length->set (64, true);
90 hbox->pack_start (*table);
92 get_vbox()->pack_start (*hbox, false, false);
94 cancel_button = add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
95 apply_button = add_button (Gtk::Stock::APPLY, Gtk::RESPONSE_OK);
96 set_default_response (Gtk::RESPONSE_OK);
98 get_vbox()->pack_start (_progress_bar, true, true, 12);
102 _threshold.get_adjustment()->signal_value_changed().connect (sigc::mem_fun (*this, &StripSilenceDialog::threshold_changed));
103 _minimum_length->ValueChanged.connect (sigc::mem_fun (*this, &StripSilenceDialog::restart_thread));
105 update_silence_rects ();
106 update_threshold_line ();
108 /* Create a thread which runs while the dialogue is open to compute the silence regions */
109 Completed.connect (_completed_connection, invalidator(*this), boost::bind (&StripSilenceDialog::update, this), gui_context ());
110 _thread_should_finish = false;
111 pthread_create (&_thread, 0, StripSilenceDialog::_detection_thread_work, this);
115 StripSilenceDialog::~StripSilenceDialog ()
119 /* Terminate our thread */
121 _interthread_info.cancel = true;
122 _thread_should_finish = true;
126 pthread_join (_thread, 0);
128 delete _minimum_length;
133 StripSilenceDialog::silences (AudioIntervalMap& m)
135 for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
136 pair<boost::shared_ptr<Region>,AudioIntervalResult> newpair (v->view->region(), v->intervals);
142 StripSilenceDialog::drop_rects ()
144 // called by parent when starting to progess (dialog::run returned),
145 // but before the dialog is destoyed.
147 for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
148 v->view->drop_silent_frames ();
151 cancel_button->set_sensitive (false);
152 apply_button->set_sensitive (false);
156 StripSilenceDialog::update_threshold_line ()
161 /* Don't need to lock here as we're not reading the _waves silence details */
163 for (list<Wave*>::iterator i = _waves.begin(); i != _waves.end(); ++i) {
164 (*i)->threshold_line->property_x1() = 0;
165 (*i)->threshold_line->property_x2() = _wave_width;
167 double const y = alt_log_meter (_threshold.get_value());
169 (*i)->threshold_line->property_y1() = (n + 1 - y) * _wave_height;
170 (*i)->threshold_line->property_y2() = (n + 1 - y) * _wave_height;
178 StripSilenceDialog::update ()
180 update_threshold_line ();
181 update_silence_rects ();
185 StripSilenceDialog::update_silence_rects ()
187 /* Lock so that we don't contend with the detection thread for access to the silence regions */
188 Glib::Threads::Mutex::Lock lm (_lock);
189 double const y = _threshold.get_value();
191 for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
192 v->view->set_silent_frames (v->intervals, y);
197 StripSilenceDialog::_detection_thread_work (void* arg)
199 StripSilenceDialog* d = reinterpret_cast<StripSilenceDialog*> (arg);
200 return d->detection_thread_work ();
203 /** Body of our silence detection thread */
205 StripSilenceDialog::detection_thread_work ()
207 ARDOUR_UI::instance()->register_thread ("gui", pthread_self(), "silence", 32);
209 /* Hold this lock when we are doing work */
213 for (list<ViewInterval>::iterator i = views.begin(); i != views.end(); ++i) {
214 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i).view->region());
217 i->intervals = ar->find_silence (dB_to_coefficient (threshold ()), minimum_length (), _interthread_info);
220 if (_interthread_info.cancel) {
225 if (!_interthread_info.cancel) {
226 Completed (); /* EMIT SIGNAL */
229 /* Our work is done; sleep until there is more to do.
230 * The lock is released while we are waiting.
232 _run_cond.wait (_lock);
234 if (_thread_should_finish) {
244 StripSilenceDialog::restart_thread ()
247 /* I don't know how this happens, but it seems to be possible for this
248 method to be called after our destructor has finished executing.
249 If this happens, bad things follow; _lock cannot be locked and
250 Ardour hangs. So if we are destroying, just bail early.
255 /* Cancel any current run */
256 _interthread_info.cancel = true;
258 /* Block until the thread waits() */
261 _interthread_info.cancel = false;
264 /* And re-awake the thread */
269 StripSilenceDialog::threshold_changed ()
271 update_threshold_line ();
276 StripSilenceDialog::minimum_length () const
278 return _minimum_length->current_duration (views.front().view->region()->position());
282 StripSilenceDialog::fade_length () const
284 return _fade_length->current_duration (views.front().view->region()->position());
288 StripSilenceDialog::update_progress_gui (float p)
290 _progress_bar.set_fraction (p);