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));
104 _fade_length->ValueChanged.connect (sigc::mem_fun (*this, &StripSilenceDialog::restart_thread));
106 update_silence_rects ();
107 update_threshold_line ();
109 _progress_bar.set_text (_("Analyzing"));
110 apply_button->set_sensitive (false);
112 /* Create a thread which runs while the dialogue is open to compute the silence regions */
113 Completed.connect (_completed_connection, invalidator(*this), boost::bind (&StripSilenceDialog::update, this), gui_context ());
114 _thread_should_finish = false;
115 pthread_create (&_thread, 0, StripSilenceDialog::_detection_thread_work, this);
119 StripSilenceDialog::~StripSilenceDialog ()
123 /* Terminate our thread */
125 _interthread_info.cancel = true;
126 _thread_should_finish = true;
130 pthread_join (_thread, 0);
132 delete _minimum_length;
137 StripSilenceDialog::silences (AudioIntervalMap& m)
139 for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
140 pair<boost::shared_ptr<Region>,AudioIntervalResult> newpair (v->view->region(), v->intervals);
146 StripSilenceDialog::drop_rects ()
148 // called by parent when starting to progess (dialog::run returned),
149 // but before the dialog is destoyed.
151 _interthread_info.cancel = true;
153 for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
154 v->view->drop_silent_frames ();
157 cancel_button->set_sensitive (false);
158 apply_button->set_sensitive (false);
162 StripSilenceDialog::update_threshold_line ()
167 /* Don't need to lock here as we're not reading the _waves silence details */
169 for (list<Wave*>::iterator i = _waves.begin(); i != _waves.end(); ++i) {
170 (*i)->threshold_line->property_x1() = 0;
171 (*i)->threshold_line->property_x2() = _wave_width;
173 double const y = alt_log_meter (_threshold.get_value());
175 (*i)->threshold_line->property_y1() = (n + 1 - y) * _wave_height;
176 (*i)->threshold_line->property_y2() = (n + 1 - y) * _wave_height;
184 StripSilenceDialog::update ()
186 update_threshold_line ();
187 update_silence_rects ();
188 _progress_bar.set_text ("");
189 apply_button->set_sensitive(true);
193 StripSilenceDialog::update_silence_rects ()
195 /* Lock so that we don't contend with the detection thread for access to the silence regions */
196 Glib::Threads::Mutex::Lock lm (_lock);
197 double const y = _threshold.get_value();
199 for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
200 v->view->set_silent_frames (v->intervals, y);
205 StripSilenceDialog::_detection_thread_work (void* arg)
207 StripSilenceDialog* d = reinterpret_cast<StripSilenceDialog*> (arg);
208 return d->detection_thread_work ();
211 /** Body of our silence detection thread */
213 StripSilenceDialog::detection_thread_work ()
215 ARDOUR_UI::instance()->register_thread ("gui", pthread_self(), "silence", 32);
217 /* Hold this lock when we are doing work */
221 for (list<ViewInterval>::iterator i = views.begin(); i != views.end(); ++i) {
222 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i).view->region());
225 i->intervals = ar->find_silence (dB_to_coefficient (threshold ()), minimum_length (), fade_length(), _interthread_info);
228 if (_interthread_info.cancel) {
233 if (!_interthread_info.cancel) {
234 Completed (); /* EMIT SIGNAL */
237 /* Our work is done; sleep until there is more to do.
238 * The lock is released while we are waiting.
240 _run_cond.wait (_lock);
242 if (_thread_should_finish) {
252 StripSilenceDialog::restart_thread ()
255 /* I don't know how this happens, but it seems to be possible for this
256 method to be called after our destructor has finished executing.
257 If this happens, bad things follow; _lock cannot be locked and
258 Ardour hangs. So if we are destroying, just bail early.
263 _progress_bar.set_text (_("Analyzing"));
264 apply_button->set_sensitive (false);
266 /* Cancel any current run */
267 _interthread_info.cancel = true;
269 /* Block until the thread waits() */
272 _interthread_info.cancel = false;
275 /* And re-awake the thread */
280 StripSilenceDialog::threshold_changed ()
282 update_threshold_line ();
287 StripSilenceDialog::minimum_length () const
289 return std::max((framecnt_t)1, _minimum_length->current_duration (views.front().view->region()->position()));
293 StripSilenceDialog::fade_length () const
295 return std::max((framecnt_t)0, _fade_length->current_duration (views.front().view->region()->position()));
299 StripSilenceDialog::update_progress_gui (float p)
301 _progress_bar.set_fraction (p);