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))
49 , analysis_progress_cur (0)
50 , analysis_progress_max (0)
54 for (list<RegionView*>::const_iterator r = v.begin(); r != v.end(); ++r) {
55 views.push_back (ViewInterval (*r));
58 Gtk::HBox* hbox = Gtk::manage (new Gtk::HBox);
60 Gtk::Table* table = Gtk::manage (new Gtk::Table (3, 3));
61 table->set_spacings (6);
65 table->attach (*Gtk::manage (new Gtk::Label (_("Threshold"), 1, 0.5)), 0, 1, n, n + 1, Gtk::FILL);
66 table->attach (_threshold, 1, 2, n, n + 1, Gtk::FILL);
67 table->attach (*Gtk::manage (new Gtk::Label (_("dbFS"))), 2, 3, n, n + 1, Gtk::FILL);
70 _threshold.set_digits (1);
71 _threshold.set_increments (1, 10);
72 _threshold.set_range (-120, 0);
73 _threshold.set_value (-60);
74 _threshold.set_activates_default ();
76 table->attach (*Gtk::manage (new Gtk::Label (_("Minimum length"), 1, 0.5)), 0, 1, n, n + 1, Gtk::FILL);
77 table->attach (*_minimum_length, 1, 2, n, n + 1, Gtk::FILL);
80 _minimum_length->set_session (s);
81 _minimum_length->set_mode (AudioClock::Frames);
82 _minimum_length->set (1000, true);
84 table->attach (*Gtk::manage (new Gtk::Label (_("Fade length"), 1, 0.5)), 0, 1, n, n + 1, Gtk::FILL);
85 table->attach (*_fade_length, 1, 2, n, n + 1, Gtk::FILL);
88 _fade_length->set_session (s);
89 _fade_length->set_mode (AudioClock::Frames);
90 _fade_length->set (64, true);
92 hbox->pack_start (*table);
94 get_vbox()->pack_start (*hbox, false, false);
96 cancel_button = add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
97 apply_button = add_button (Gtk::Stock::APPLY, Gtk::RESPONSE_OK);
98 set_default_response (Gtk::RESPONSE_OK);
100 get_vbox()->pack_start (_progress_bar, true, true, 12);
104 _threshold.get_adjustment()->signal_value_changed().connect (sigc::mem_fun (*this, &StripSilenceDialog::threshold_changed));
105 _minimum_length->ValueChanged.connect (sigc::mem_fun (*this, &StripSilenceDialog::restart_thread));
106 _fade_length->ValueChanged.connect (sigc::mem_fun (*this, &StripSilenceDialog::restart_thread));
108 update_silence_rects ();
109 update_threshold_line ();
111 _progress_bar.set_text (_("Analyzing"));
112 update_progress_gui (0);
113 apply_button->set_sensitive (false);
114 progress_idle_connection = Glib::signal_idle().connect (sigc::mem_fun (*this, &StripSilenceDialog::idle_update_progress));
116 /* Create a thread which runs while the dialogue is open to compute the silence regions */
117 Completed.connect (_completed_connection, invalidator(*this), boost::bind (&StripSilenceDialog::update, this), gui_context ());
118 _thread_should_finish = false;
119 pthread_create (&_thread, 0, StripSilenceDialog::_detection_thread_work, this);
123 StripSilenceDialog::~StripSilenceDialog ()
126 progress_idle_connection.disconnect();
128 /* Terminate our thread */
129 _interthread_info.cancel = true;
131 _thread_should_finish = true;
135 pthread_join (_thread, 0);
137 delete _minimum_length;
142 StripSilenceDialog::idle_update_progress()
144 if (analysis_progress_max > 0) {
145 // AudioRegion::find_silence() has
146 // itt.progress = (end - pos) / length
147 // not sure if that's intentional, but let's use (1. - val)
148 float rp = std::min(1.f, std::max (0.f, (1.f - _interthread_info.progress)));
149 float p = analysis_progress_cur / (float) analysis_progress_max
150 + rp / (float) analysis_progress_max;
151 update_progress_gui (p);
157 StripSilenceDialog::silences (AudioIntervalMap& m)
159 for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
160 pair<boost::shared_ptr<Region>,AudioIntervalResult> newpair (v->view->region(), v->intervals);
166 StripSilenceDialog::drop_rects ()
168 // called by parent when starting to progess (dialog::run returned),
169 // but before the dialog is destoyed.
171 _interthread_info.cancel = true;
173 /* Block until the thread is idle */
177 for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
178 v->view->drop_silent_frames ();
181 cancel_button->set_sensitive (false);
182 apply_button->set_sensitive (false);
186 StripSilenceDialog::update_threshold_line ()
191 /* Don't need to lock here as we're not reading the _waves silence details */
193 for (list<Wave*>::iterator i = _waves.begin(); i != _waves.end(); ++i) {
194 (*i)->threshold_line->property_x1() = 0;
195 (*i)->threshold_line->property_x2() = _wave_width;
197 double const y = alt_log_meter (_threshold.get_value());
199 (*i)->threshold_line->property_y1() = (n + 1 - y) * _wave_height;
200 (*i)->threshold_line->property_y2() = (n + 1 - y) * _wave_height;
208 StripSilenceDialog::update ()
210 update_threshold_line ();
211 update_silence_rects ();
212 _progress_bar.set_text ("");
213 update_progress_gui (0);
214 apply_button->set_sensitive(true);
218 StripSilenceDialog::update_silence_rects ()
220 /* Lock so that we don't contend with the detection thread for access to the silence regions */
221 Glib::Threads::Mutex::Lock lm (_lock);
222 double const y = _threshold.get_value();
224 for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
225 v->view->set_silent_frames (v->intervals, y);
230 StripSilenceDialog::_detection_thread_work (void* arg)
232 StripSilenceDialog* d = reinterpret_cast<StripSilenceDialog*> (arg);
233 return d->detection_thread_work ();
236 /** Body of our silence detection thread */
238 StripSilenceDialog::detection_thread_work ()
240 ARDOUR_UI::instance()->register_thread ("gui", pthread_self(), "silence", 32);
242 /* Hold this lock when we are doing work */
246 analysis_progress_cur = 0;
247 analysis_progress_max = views.size();
248 for (list<ViewInterval>::iterator i = views.begin(); i != views.end(); ++i) {
249 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i).view->region());
252 i->intervals = ar->find_silence (dB_to_coefficient (threshold ()), minimum_length (), fade_length(), _interthread_info);
255 if (_interthread_info.cancel) {
258 ++analysis_progress_cur;
259 _interthread_info.progress = 1.0;
263 analysis_progress_max = 0;
265 if (!_interthread_info.cancel) {
266 Completed (); /* EMIT SIGNAL */
269 /* Our work is done; sleep until there is more to do.
270 * The lock is released while we are waiting.
272 _run_cond.wait (_lock);
274 if (_thread_should_finish) {
284 StripSilenceDialog::restart_thread ()
287 /* I don't know how this happens, but it seems to be possible for this
288 method to be called after our destructor has finished executing.
289 If this happens, bad things follow; _lock cannot be locked and
290 Ardour hangs. So if we are destroying, just bail early.
295 _progress_bar.set_text (_("Analyzing"));
296 update_progress_gui (0);
297 apply_button->set_sensitive (false);
299 /* Cancel any current run */
300 _interthread_info.cancel = true;
302 /* Block until the thread waits() */
305 _interthread_info.cancel = false;
308 /* And re-awake the thread */
313 StripSilenceDialog::threshold_changed ()
315 update_threshold_line ();
320 StripSilenceDialog::minimum_length () const
322 return std::max((framecnt_t)1, _minimum_length->current_duration (views.front().view->region()->position()));
326 StripSilenceDialog::fade_length () const
328 return std::max((framecnt_t)0, _fade_length->current_duration (views.front().view->region()->position()));
332 StripSilenceDialog::update_progress_gui (float p)
334 _progress_bar.set_fraction (p);