*/
+#include <cmath>
+
+#include <gtkmm2ext/utils.h>
+
#include "pbd/memento_command.h"
#include "pbd/stateful_diff_command.h"
+#include "pbd/pthread_utils.h"
-#include "ardour/session.h"
#include "ardour/audioregion.h"
-#include "ardour/playlist.h"
-#include "ardour/utils.h"
+#include "ardour/session_event.h"
#include "ardour/dB.h"
-#include <gtkmm2ext/utils.h>
-#include <cmath>
#include "audio_region_editor.h"
#include "audio_region_view.h"
-#include "ardour_ui.h"
-#include "utils.h"
#include "gui_thread.h"
#include "i18n.h"
using namespace std;
using namespace Gtkmm2ext;
+static void *
+_peak_amplitude_thread (void* arg)
+{
+ 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)
-
+ , gain_adjustment(accurate_coefficient_to_dB(_audio_region->scale_amplitude()), -40.0, +40.0, 0.1, 1.0, 0)
+ , _peak_channel (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 ());
+
+ char name[64];
+ snprintf (name, 64, "peak amplitude-%p", this);
+ pthread_create_and_store (name, &_peak_amplitude_thread_handle, _peak_amplitude_thread, this);
+ signal_peak_thread ();
+}
+
+AudioRegionEditor::~AudioRegionEditor ()
+{
+ void* v;
+ _peak_channel.deliver ('t');
+ pthread_join (_peak_amplitude_thread_handle, &v);
}
void
AudioRegionEditor::region_changed (const PBD::PropertyChange& what_changed)
{
RegionEditor::region_changed (what_changed);
-
+
if (what_changed.contains (ARDOUR::Properties::scale_amplitude)) {
gain_changed ();
}
+
+ if (what_changed.contains (ARDOUR::Properties::start) || what_changed.contains (ARDOUR::Properties::length)) {
+ /* ask the peak thread to run again */
+ signal_peak_thread ();
+ }
}
void
AudioRegionEditor::gain_changed ()
_audio_region->set_scale_amplitude (gain);
}
}
+
+void
+AudioRegionEditor::signal_peak_thread ()
+{
+ _peak_channel.deliver ('c');
+}
+
+void
+AudioRegionEditor::peak_amplitude_thread ()
+{
+ while (1) {
+ char msg;
+ /* await instructions to run */
+ _peak_channel.receive (msg);
+
+ if (msg == 't') {
+ break;
+ }
+
+ /* compute peak amplitude and signal the fact */
+ PeakAmplitudeFound (accurate_coefficient_to_dB (_audio_region->maximum_amplitude ())); /* EMIT SIGNAL */
+ }
+}
+
+void
+AudioRegionEditor::peak_amplitude_found (double p)
+{
+ stringstream s;
+ s.precision (2);
+ s.setf (ios::fixed, ios::floatfield);
+ s << p;
+ _peak_amplitude.set_text (s.str ());
+}
+