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Add region peak amplitude to region editor.

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git-svn-id: svn://localhost/ardour2/branches/3.0@7937 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Carl Hetherington 2010-10-28 20:01:26 +00:00
parent e88f7f6b55
commit db5c8c9791
6 changed files with 85 additions and 14 deletions
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65
gtk2_ardour/audio_region_editor.cc
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@ -17,8 +17,11 @@
*/
#include <boost/lexical_cast.hpp>
#include "pbd/memento_command.h"
#include "pbd/stateful_diff_command.h"
#include "pbd/pthread_utils.h"
#include "ardour/session.h"
#include "ardour/audioregion.h"
@ -41,28 +44,63 @@ using namespace PBD;
using namespace std;
using namespace Gtkmm2ext;
static void *
_peak_amplitude_thread (void* arg)
{
SessionEvent::create_per_thread_pool ("peak amplitude events", 64);
static_cast<AudioRegionEditor*>(arg)->peak_amplitude_thread ();
return 0;
}
AudioRegionEditor::AudioRegionEditor (Session* s, boost::shared_ptr<AudioRegion> r)
: RegionEditor (s, r)
, _audio_region (r)
, gain_adjustment(accurate_coefficient_to_dB(_audio_region->scale_amplitude()), -40.0, +40.0, 0.1, 1.0, 0)
, _peak_amplitude_found (false)
{
gain_label.set_alignment (1, 0.5);
Gtk::HBox* gb = Gtk::manage (new Gtk::HBox);
gb->set_spacing (6);
gb->pack_start (gain_entry);
gb->pack_start (*Gtk::manage (new Gtk::Label (_("dB"))), false, false);
Gtk::HBox* b = Gtk::manage (new Gtk::HBox);
b->set_spacing (6);
b->pack_start (gain_entry);
b->pack_start (*Gtk::manage (new Gtk::Label (_("dB"))), false, false);
gain_label.set_name ("AudioRegionEditorLabel");
gain_label.set_text (_("Region gain:"));
gain_label.set_alignment (1, 0.5);
gain_entry.configure (gain_adjustment, 0.0, 1);
_table.attach (gain_label, 0, 1, _table_row, _table_row + 1, Gtk::FILL, Gtk::FILL);
_table.attach (*gb, 1, 2, _table_row, _table_row + 1, Gtk::FILL, Gtk::FILL);
_table.attach (*b, 1, 2, _table_row, _table_row + 1, Gtk::FILL, Gtk::FILL);
++_table_row;
b = Gtk::manage (new Gtk::HBox);
b->set_spacing (6);
b->pack_start (_peak_amplitude);
b->pack_start (*Gtk::manage (new Gtk::Label (_("dBFS"))), false, false);
_peak_amplitude_label.set_name ("AudioRegionEditorLabel");
_peak_amplitude_label.set_text (_("Peak amplitude:"));
_peak_amplitude_label.set_alignment (1, 0.5);
_table.attach (_peak_amplitude_label, 0, 1, _table_row, _table_row + 1, Gtk::FILL, Gtk::FILL);
_table.attach (*b, 1, 2, _table_row, _table_row + 1, Gtk::FILL, Gtk::FILL);
++_table_row;
gain_changed ();
gain_adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &AudioRegionEditor::gain_adjustment_changed));
_peak_amplitude.property_editable() = false;
_peak_amplitude.set_text (_("Calculating..."));
PeakAmplitudeFound.connect (_peak_amplitude_connection, invalidator (*this), boost::bind (&AudioRegionEditor::peak_amplitude_found, this, _1), gui_context ());
pthread_create_and_store (X_("peak-amplitude"), &_peak_amplitude_thread_handle, _peak_amplitude_thread, this);
}
AudioRegionEditor::~AudioRegionEditor ()
{
pthread_cancel_one (_peak_amplitude_thread_handle);
void* v;
int const r = pthread_join (_peak_amplitude_thread_handle, &v);
assert (r == 0);
}
void
@ -91,3 +129,16 @@ AudioRegionEditor::gain_adjustment_changed ()
_audio_region->set_scale_amplitude (gain);
}
}
void
AudioRegionEditor::peak_amplitude_thread ()
{
PeakAmplitudeFound (accurate_coefficient_to_dB (_audio_region->maximum_amplitude ())); /* EMIT SIGNAL */
}
void
AudioRegionEditor::peak_amplitude_found (double p)
{
_peak_amplitude.set_text (boost::lexical_cast<string> (p));
}