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>
25 #include "ardour/audioregion.h"
26 #include "ardour/audiosource.h"
28 #include "ardour/dB.h"
29 #include "ardour_ui.h"
30 #include "ardour/session.h"
32 #include "audio_clock.h"
33 #include "gui_thread.h"
34 #include "strip_silence_dialog.h"
35 #include "canvas_impl.h"
36 #include "region_view.h"
37 #include "simpleline.h"
39 #include "simplerect.h"
40 #include "rgb_macros.h"
44 using namespace ARDOUR;
46 using namespace ArdourCanvas;
48 /** Construct Strip silence dialog box */
49 StripSilenceDialog::StripSilenceDialog (Session* s, list<RegionView*> const & v)
50 : ArdourDialog (_("Strip Silence"))
52 , _minimum_length (new AudioClock (X_("silence duration"), true, "", true, false, true, false))
53 , _fade_length (new AudioClock (X_("silence duration"), true, "", true, false, true, false))
54 , _peaks_ready_connection (0)
59 for (list<RegionView*>::const_iterator r = v.begin(); r != v.end(); ++r) {
60 views.push_back (ViewInterval (*r));
63 Gtk::HBox* hbox = Gtk::manage (new Gtk::HBox);
65 Gtk::Table* table = Gtk::manage (new Gtk::Table (3, 3));
66 table->set_spacings (6);
70 table->attach (*Gtk::manage (new Gtk::Label (_("Threshold"), 1, 0.5)), 0, 1, n, n + 1, Gtk::FILL);
71 table->attach (_threshold, 1, 2, n, n + 1, Gtk::FILL);
72 table->attach (*Gtk::manage (new Gtk::Label (_("dbFS"))), 2, 3, n, n + 1, Gtk::FILL);
75 _threshold.set_digits (1);
76 _threshold.set_increments (1, 10);
77 _threshold.set_range (-120, 0);
78 _threshold.set_value (-60);
79 _threshold.set_activates_default ();
81 table->attach (*Gtk::manage (new Gtk::Label (_("Minimum length"), 1, 0.5)), 0, 1, n, n + 1, Gtk::FILL);
82 table->attach (*_minimum_length, 1, 2, n, n + 1, Gtk::FILL);
85 _minimum_length->set_session (s);
86 _minimum_length->set_mode (AudioClock::Frames);
87 _minimum_length->set (1000, true);
89 table->attach (*Gtk::manage (new Gtk::Label (_("Fade length"), 1, 0.5)), 0, 1, n, n + 1, Gtk::FILL);
90 table->attach (*_fade_length, 1, 2, n, n + 1, Gtk::FILL);
93 _fade_length->set_session (s);
94 _fade_length->set_mode (AudioClock::Frames);
95 _fade_length->set (64, true);
97 hbox->pack_start (*table);
99 get_vbox()->pack_start (*hbox, false, false);
101 add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
102 add_button (Gtk::Stock::APPLY, Gtk::RESPONSE_OK);
103 set_default_response (Gtk::RESPONSE_OK);
105 get_vbox()->pack_start (_progress_bar, true, true, 12);
109 _threshold.get_adjustment()->signal_value_changed().connect (sigc::mem_fun (*this, &StripSilenceDialog::threshold_changed));
110 _minimum_length->ValueChanged.connect (sigc::mem_fun (*this, &StripSilenceDialog::restart_thread));
112 update_silence_rects ();
113 update_threshold_line ();
115 /* Create a thread which runs while the dialogue is open to compute the silence regions */
116 Completed.connect (_completed_connection, MISSING_INVALIDATOR, boost::bind (&StripSilenceDialog::update, this), gui_context ());
117 _thread_should_finish = false;
118 pthread_create (&_thread, 0, StripSilenceDialog::_detection_thread_work, this);
122 StripSilenceDialog::~StripSilenceDialog ()
126 /* Terminate our thread */
129 _interthread_info.cancel = true;
130 _thread_should_finish = true;
134 pthread_join (_thread, 0);
136 delete _minimum_length;
139 delete _peaks_ready_connection;
143 StripSilenceDialog::silences (AudioIntervalMap& m)
145 for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
146 pair<boost::shared_ptr<Region>,AudioIntervalResult> newpair (v->view->region(), v->intervals);
152 StripSilenceDialog::drop_rects ()
154 for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
155 v->view->drop_silent_frames ();
160 StripSilenceDialog::update_threshold_line ()
165 /* Don't need to lock here as we're not reading the _waves silence details */
167 for (list<Wave*>::iterator i = _waves.begin(); i != _waves.end(); ++i) {
168 (*i)->threshold_line->property_x1() = 0;
169 (*i)->threshold_line->property_x2() = _wave_width;
171 double const y = alt_log_meter (_threshold.get_value());
173 (*i)->threshold_line->property_y1() = (n + 1 - y) * _wave_height;
174 (*i)->threshold_line->property_y2() = (n + 1 - y) * _wave_height;
182 StripSilenceDialog::update ()
184 update_threshold_line ();
185 update_silence_rects ();
189 StripSilenceDialog::update_silence_rects ()
191 /* Lock so that we don't contend with the detection thread for access to the silence regions */
192 Glib::Mutex::Lock lm (_lock);
193 double const y = _threshold.get_value();
195 for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
196 v->view->set_silent_frames (v->intervals, y);
201 StripSilenceDialog::_detection_thread_work (void* arg)
203 StripSilenceDialog* d = reinterpret_cast<StripSilenceDialog*> (arg);
204 return d->detection_thread_work ();
207 /** Body of our silence detection thread */
209 StripSilenceDialog::detection_thread_work ()
211 ARDOUR_UI::instance()->register_thread ("gui", pthread_self(), "silence", 32);
213 /* Hold this lock when we are doing work */
217 for (list<ViewInterval>::iterator i = views.begin(); i != views.end(); ++i) {
218 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i).view->region());
221 i->intervals = ar->find_silence (dB_to_coefficient (threshold ()), minimum_length (), _interthread_info);
224 if (_interthread_info.cancel) {
229 if (!_interthread_info.cancel) {
230 Completed (); /* EMIT SIGNAL */
233 /* Our work is done; sleep until there is more to do.
234 * The lock is released while we are waiting.
236 _run_cond.wait (_lock);
238 if (_thread_should_finish) {
248 StripSilenceDialog::restart_thread ()
251 /* I don't know how this happens, but it seems to be possible for this
252 method to be called after our destructor has finished executing.
253 If this happens, bad things follow; _lock cannot be locked and
254 Ardour hangs. So if we are destroying, just bail early.
259 /* Cancel any current run */
260 _interthread_info.cancel = true;
262 /* Block until the thread waits() */
265 _interthread_info.cancel = false;
268 /* And re-awake the thread */
273 StripSilenceDialog::threshold_changed ()
275 update_threshold_line ();
280 StripSilenceDialog::minimum_length () const
282 return _minimum_length->current_duration (views.front().view->region()->position());
286 StripSilenceDialog::fade_length () const
288 return _fade_length->current_duration (views.front().view->region()->position());
292 StripSilenceDialog::update_progress_gui (float p)
294 _progress_bar.set_fraction (p);