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livetrax/gtk2_ardour/strip_silence_dialog.cc
Paul Davis 3cd8138a41 convert from Glib:: to Glib::Threads for all thread-related API
git-svn-id: svn://localhost/ardour2/branches/3.0@13084 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-07-25 17:48:55 +00:00

294 lines
7.9 KiB
C++

/*
Copyright (C) 2009 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <iostream>
#include <gtkmm/table.h>
#include <gtkmm/label.h>
#include <gtkmm/stock.h>
#include "ardour/audioregion.h"
#include "ardour/dB.h"
#include "ardour_ui.h"
#include "audio_clock.h"
#include "gui_thread.h"
#include "strip_silence_dialog.h"
#include "canvas_impl.h"
#include "region_view.h"
#include "simpleline.h"
#include "waveview.h"
#include "simplerect.h"
#include "rgb_macros.h"
#include "i18n.h"
#include "logmeter.h"
using namespace ARDOUR;
using namespace std;
using namespace ArdourCanvas;
/** Construct Strip silence dialog box */
StripSilenceDialog::StripSilenceDialog (Session* s, list<RegionView*> const & v)
: ArdourDialog (_("Strip Silence"))
, ProgressReporter ()
, _minimum_length (new AudioClock (X_("silence duration"), true, "", true, false, true, false))
, _fade_length (new AudioClock (X_("silence duration"), true, "", true, false, true, false))
, _peaks_ready_connection (0)
, _destroying (false)
{
set_session (s);
for (list<RegionView*>::const_iterator r = v.begin(); r != v.end(); ++r) {
views.push_back (ViewInterval (*r));
}
Gtk::HBox* hbox = Gtk::manage (new Gtk::HBox);
Gtk::Table* table = Gtk::manage (new Gtk::Table (3, 3));
table->set_spacings (6);
int n = 0;
table->attach (*Gtk::manage (new Gtk::Label (_("Threshold"), 1, 0.5)), 0, 1, n, n + 1, Gtk::FILL);
table->attach (_threshold, 1, 2, n, n + 1, Gtk::FILL);
table->attach (*Gtk::manage (new Gtk::Label (_("dbFS"))), 2, 3, n, n + 1, Gtk::FILL);
++n;
_threshold.set_digits (1);
_threshold.set_increments (1, 10);
_threshold.set_range (-120, 0);
_threshold.set_value (-60);
_threshold.set_activates_default ();
table->attach (*Gtk::manage (new Gtk::Label (_("Minimum length"), 1, 0.5)), 0, 1, n, n + 1, Gtk::FILL);
table->attach (*_minimum_length, 1, 2, n, n + 1, Gtk::FILL);
++n;
_minimum_length->set_session (s);
_minimum_length->set_mode (AudioClock::Frames);
_minimum_length->set (1000, true);
table->attach (*Gtk::manage (new Gtk::Label (_("Fade length"), 1, 0.5)), 0, 1, n, n + 1, Gtk::FILL);
table->attach (*_fade_length, 1, 2, n, n + 1, Gtk::FILL);
++n;
_fade_length->set_session (s);
_fade_length->set_mode (AudioClock::Frames);
_fade_length->set (64, true);
hbox->pack_start (*table);
get_vbox()->pack_start (*hbox, false, false);
add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
add_button (Gtk::Stock::APPLY, Gtk::RESPONSE_OK);
set_default_response (Gtk::RESPONSE_OK);
get_vbox()->pack_start (_progress_bar, true, true, 12);
show_all ();
_threshold.get_adjustment()->signal_value_changed().connect (sigc::mem_fun (*this, &StripSilenceDialog::threshold_changed));
_minimum_length->ValueChanged.connect (sigc::mem_fun (*this, &StripSilenceDialog::restart_thread));
update_silence_rects ();
update_threshold_line ();
/* Create a thread which runs while the dialogue is open to compute the silence regions */
Completed.connect (_completed_connection, MISSING_INVALIDATOR, boost::bind (&StripSilenceDialog::update, this), gui_context ());
_thread_should_finish = false;
pthread_create (&_thread, 0, StripSilenceDialog::_detection_thread_work, this);
}
StripSilenceDialog::~StripSilenceDialog ()
{
_destroying = true;
/* Terminate our thread */
_lock.lock ();
_interthread_info.cancel = true;
_thread_should_finish = true;
_lock.unlock ();
_run_cond.signal ();
pthread_join (_thread, 0);
delete _minimum_length;
delete _fade_length;
delete _peaks_ready_connection;
}
void
StripSilenceDialog::silences (AudioIntervalMap& m)
{
for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
pair<boost::shared_ptr<Region>,AudioIntervalResult> newpair (v->view->region(), v->intervals);
m.insert (newpair);
}
}
void
StripSilenceDialog::drop_rects ()
{
for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
v->view->drop_silent_frames ();
}
}
void
StripSilenceDialog::update_threshold_line ()
{
#if 0
int n = 0;
/* Don't need to lock here as we're not reading the _waves silence details */
for (list<Wave*>::iterator i = _waves.begin(); i != _waves.end(); ++i) {
(*i)->threshold_line->property_x1() = 0;
(*i)->threshold_line->property_x2() = _wave_width;
double const y = alt_log_meter (_threshold.get_value());
(*i)->threshold_line->property_y1() = (n + 1 - y) * _wave_height;
(*i)->threshold_line->property_y2() = (n + 1 - y) * _wave_height;
}
++n;
#endif
}
void
StripSilenceDialog::update ()
{
update_threshold_line ();
update_silence_rects ();
}
void
StripSilenceDialog::update_silence_rects ()
{
/* Lock so that we don't contend with the detection thread for access to the silence regions */
Glib::Threads::Mutex::Lock lm (_lock);
double const y = _threshold.get_value();
for (list<ViewInterval>::iterator v = views.begin(); v != views.end(); ++v) {
v->view->set_silent_frames (v->intervals, y);
}
}
void *
StripSilenceDialog::_detection_thread_work (void* arg)
{
StripSilenceDialog* d = reinterpret_cast<StripSilenceDialog*> (arg);
return d->detection_thread_work ();
}
/** Body of our silence detection thread */
void *
StripSilenceDialog::detection_thread_work ()
{
ARDOUR_UI::instance()->register_thread ("gui", pthread_self(), "silence", 32);
/* Hold this lock when we are doing work */
_lock.lock ();
while (1) {
for (list<ViewInterval>::iterator i = views.begin(); i != views.end(); ++i) {
boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i).view->region());
if (ar) {
i->intervals = ar->find_silence (dB_to_coefficient (threshold ()), minimum_length (), _interthread_info);
}
if (_interthread_info.cancel) {
break;
}
}
if (!_interthread_info.cancel) {
Completed (); /* EMIT SIGNAL */
}
/* Our work is done; sleep until there is more to do.
* The lock is released while we are waiting.
*/
_run_cond.wait (_lock);
if (_thread_should_finish) {
_lock.unlock ();
return 0;
}
}
return 0;
}
void
StripSilenceDialog::restart_thread ()
{
if (_destroying) {
/* I don't know how this happens, but it seems to be possible for this
method to be called after our destructor has finished executing.
If this happens, bad things follow; _lock cannot be locked and
Ardour hangs. So if we are destroying, just bail early.
*/
return;
}
/* Cancel any current run */
_interthread_info.cancel = true;
/* Block until the thread waits() */
_lock.lock ();
/* Reset the flag */
_interthread_info.cancel = false;
_lock.unlock ();
/* And re-awake the thread */
_run_cond.signal ();
}
void
StripSilenceDialog::threshold_changed ()
{
update_threshold_line ();
restart_thread ();
}
framecnt_t
StripSilenceDialog::minimum_length () const
{
return _minimum_length->current_duration (views.front().view->region()->position());
}
framecnt_t
StripSilenceDialog::fade_length () const
{
return _fade_length->current_duration (views.front().view->region()->position());
}
void
StripSilenceDialog::update_progress_gui (float p)
{
_progress_bar.set_fraction (p);
}