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/*
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 <gtkmm/spinbutton.h>
#include <glibmm/thread.h>
#include "ardour/types.h"
#include "ardour_dialog.h"
#include "canvas.h"
namespace ARDOUR {
class AudioRegion;
class Session;
}
/// Dialog box to set options for the `strip silence' filter
class StripSilenceDialog : public ArdourDialog
{
public:
StripSilenceDialog (ARDOUR::Session*, std::list<boost::shared_ptr<ARDOUR::AudioRegion> > const &);
~StripSilenceDialog ();
double threshold () const {
return _threshold.get_value ();
}
nframes_t minimum_length () const;
nframes_t fade_length () const;
static void stop_thread ();
private:
void create_waves ();
void peaks_ready ();
void canvas_allocation (Gtk::Allocation &);
void update_silence_rects ();
void redraw_silence_rects ();
Gtk::SpinButton _threshold;
AudioClock _minimum_length;
AudioClock _fade_length;
Gtk::Label _segment_count_label;
typedef std::list<std::pair<ARDOUR::frameoffset_t,ARDOUR::framecnt_t> > SilenceResult;
struct Wave {
boost::shared_ptr<ARDOUR::AudioRegion> region;
ArdourCanvas::WaveView* view;
std::list<ArdourCanvas::SimpleRect*> silence_rects;
double samples_per_unit;
SilenceResult silence;
Wave() : view (0), samples_per_unit (1) { }
};
ArdourCanvas::Canvas* _canvas;
std::list<Wave> _waves;
int _wave_width;
int _wave_height;
bool restart_queued;
static ARDOUR::InterThreadInfo itt;
static bool thread_should_exit;
static Glib::Cond *thread_run;
static Glib::Cond *thread_waiting;
static Glib::StaticMutex run_lock;
static StripSilenceDialog* current;
ARDOUR::framecnt_t max_audible;
ARDOUR::framecnt_t min_audible;
ARDOUR::framecnt_t max_silence;
ARDOUR::framecnt_t min_silence;
PBD::ScopedConnection* _peaks_ready_connection;
static bool _detection_done (void*);
static void* _detection_thread_work (void*);
bool detection_done ();
void* detection_thread_work ();
bool start_silence_detection ();
void maybe_start_silence_detection ();
void update_stats (const SilenceResult&);
};
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