Merge with trunk R2978.

git-svn-id: svn://localhost/ardour2/branches/3.0@2988 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 305 insertions, 0 deletions

diff --git a/gtk2_ardour/rhythm_ferret.cc b/gtk2_ardour/rhythm_ferret.cc
new file mode 100644
index 0000000000..980b36e1d1
--- /dev/null
+++ b/gtk2_ardour/rhythm_ferret.cc
@@ -0,0 +1,305 @@
+#include <gtkmm/stock.h>
+#include <gtkmm2ext/utils.h>
+
+#include <pbd/memento_command.h>
+
+#include <ardour/transient_detector.h>
+#include <ardour/audiosource.h>
+#include <ardour/audioregion.h>
+#include <ardour/playlist.h>
+#include <ardour/region_factory.h>
+#include <ardour/session.h>
+
+#include "rhythm_ferret.h"
+#include "audio_region_view.h"
+#include "public_editor.h"
+
+#include "i18n.h"
+
+using namespace std;
+using namespace Gtk;
+using namespace Gdk;
+using namespace PBD;
+using namespace ARDOUR;
+
+/* order of these must match the AnalysisMode enums
+   in rhythm_ferret.h
+*/
+static const gchar * _analysis_mode_strings[] = {
+	N_("Percussive Onset"),
+	N_("Note Onset"),
+	0
+};
+
+RhythmFerret::RhythmFerret (PublicEditor& e)
+	: ArdourDialog (_("Rhythm Ferret"))
+	, editor (e)
+	, operation_frame (_("Operation"))
+	, selection_frame (_("Selection"))
+	, ferret_frame (_("Analysis"))
+	, logo (0)
+	, region_split_button (operation_button_group, _("Split Region"))
+	, tempo_button (operation_button_group, _("Set Tempo Map"))
+	, region_conform_button (operation_button_group, _("Conform Region"))
+	, analysis_mode_label (_("Mode"))
+	, detection_threshold_adjustment (3, 0, 20, 1, 4)
+	, detection_threshold_scale (detection_threshold_adjustment)
+	, detection_threshold_label (_("Threshold"))
+	, sensitivity_adjustment (40, 0, 100, 1, 10)
+	, sensitivity_scale (sensitivity_adjustment)
+	, sensitivity_label (_("Sensitivity"))
+	, analyze_button (_("Analyze"))
+	, trigger_gap_adjustment (3, 0, 100, 1, 10)
+	, trigger_gap_spinner (trigger_gap_adjustment)
+	, trigger_gap_label (_("Trigger gap (msecs)"))
+	, action_button (Stock::APPLY)
+
+{
+	upper_hpacker.set_spacing (6);
+
+	upper_hpacker.pack_start (operation_frame, true, true);
+	upper_hpacker.pack_start (selection_frame, true, true);
+	upper_hpacker.pack_start (ferret_frame, true, true);
+
+	op_packer.pack_start (region_split_button, false, false);
+	op_packer.pack_start (tempo_button, false, false);
+	op_packer.pack_start (region_conform_button, false, false);
+
+	operation_frame.add (op_packer);
+
+	HBox* box;
+
+	ferret_packer.set_spacing (6);
+	ferret_packer.set_border_width (6);
+	
+	vector<string> strings;
+
+	analysis_mode_strings = I18N (_analysis_mode_strings);
+	Gtkmm2ext::set_popdown_strings (analysis_mode_selector, analysis_mode_strings);
+	analysis_mode_selector.set_active_text (analysis_mode_strings.front());
+
+	box = manage (new HBox);
+	box->set_spacing (6);
+	box->pack_start (analysis_mode_label, false, false);
+	box->pack_start (analysis_mode_selector, true, true);
+	ferret_packer.pack_start (*box, false, false);
+
+	box = manage (new HBox);
+	box->set_spacing (6);
+	box->pack_start (detection_threshold_label, false, false);
+	box->pack_start (detection_threshold_scale, true, true);
+	ferret_packer.pack_start (*box, false, false);
+
+	box = manage (new HBox);
+	box->set_spacing (6);
+	box->pack_start (sensitivity_label, false, false);
+	box->pack_start (sensitivity_scale, true, true);
+	ferret_packer.pack_start (*box, false, false);
+
+	box = manage (new HBox);
+	box->set_spacing (6);
+	box->pack_start (trigger_gap_label, false, false);
+	box->pack_start (trigger_gap_spinner, false, false);
+	ferret_packer.pack_start (*box, false, false);
+
+	ferret_packer.pack_start (analyze_button, false, false);
+
+	analyze_button.signal_clicked().connect (mem_fun (*this, &RhythmFerret::run_analysis));
+	
+	ferret_frame.add (ferret_packer);
+
+	// Glib::RefPtr<Pixbuf> logo_pixbuf ("somefile");
+	
+	if (logo) {
+		lower_hpacker.pack_start (*logo, false, false);
+	}
+
+	lower_hpacker.pack_start (operation_clarification_label, false, false);
+	lower_hpacker.pack_start (action_button, false, false);
+
+	action_button.signal_clicked().connect (mem_fun (*this, &RhythmFerret::do_action));
+	
+	get_vbox()->set_border_width (6);
+	get_vbox()->set_spacing (6);
+	get_vbox()->pack_start (upper_hpacker, true, true);
+	get_vbox()->pack_start (lower_hpacker, false, false);
+
+	show_all ();
+}
+
+RhythmFerret::~RhythmFerret()
+{
+	if (logo) {
+		delete logo;
+	}
+}
+
+RhythmFerret::AnalysisMode
+RhythmFerret::get_analysis_mode () const
+{
+	string str = analysis_mode_selector.get_active_text ();
+
+	if (str == _(_analysis_mode_strings[(int) NoteOnset])) {
+		return NoteOnset;
+	} 
+
+	return PercussionOnset;
+}
+
+RhythmFerret::Action
+RhythmFerret::get_action () const
+{
+	if (tempo_button.get_active()) {
+		return DefineTempoMap;
+	} else if (region_conform_button.get_active()) {
+		return ConformRegion;
+	}
+
+	return SplitRegion;
+}
+
+void
+RhythmFerret::run_analysis ()
+{
+	if (!session) {
+		return;
+	}
+
+	RegionSelection& regions (editor.get_selection().regions);
+
+	current_results.clear ();
+
+	if (regions.empty()) {
+		return;
+	}
+
+	for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ++i) {
+
+		boost::shared_ptr<Readable> rd = boost::static_pointer_cast<AudioRegion> ((*i)->region());
+
+		switch (get_analysis_mode()) {
+		case PercussionOnset:
+			run_percussion_onset_analysis (rd, (*i)->region()->position(), current_results);
+			break;
+		default:
+			break;
+		}
+
+	}
+
+	for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ++i) {
+		(*i)->get_time_axis_view().show_temporary_lines (current_results);
+	}
+
+}
+
+int
+RhythmFerret::run_percussion_onset_analysis (boost::shared_ptr<Readable> readable, nframes64_t offset, vector<nframes64_t>& results)
+{
+	TransientDetector t (session->frame_rate());
+
+	for (uint32_t i = 0; i < readable->n_channels(); ++i) {
+
+		vector<nframes64_t> these_results;
+
+		t.reset ();
+		t.set_threshold (detection_threshold_adjustment.get_value());
+		t.set_sensitivity (sensitivity_adjustment.get_value());
+
+		if (t.run ("", readable.get(), i, these_results)) {
+			continue;
+		}
+
+		/* translate all transients to give absolute position */
+
+		for (vector<nframes64_t>::iterator i = these_results.begin(); i != these_results.end(); ++i) {
+			(*i) += offset;
+		}
+
+		/* merge */
+		
+		results.insert (results.end(), these_results.begin(), these_results.end());
+	}
+		
+	if (!results.empty()) {
+		
+		/* now resort to bring transients from different channels together */
+		
+		sort (results.begin(), results.end());
+
+		/* remove duplicates or other things that are too close */
+
+		vector<nframes64_t>::iterator i = results.begin();
+		nframes64_t curr = (*i);
+		nframes64_t gap_frames = (nframes64_t) floor (trigger_gap_adjustment.get_value() * (session->frame_rate() / 1000.0));
+
+		++i;
+
+		while (i != results.end()) {
+			if (((*i) == curr) || (((*i) - curr) < gap_frames)) {
+				    i = results.erase (i);
+			} else {
+				++i;
+				curr = *i;
+			}
+		}
+
+	}
+
+	return 0;
+}
+
+void
+RhythmFerret::do_action ()
+{
+	if (!session || current_results.empty()) {
+		return;
+	}
+
+	switch (get_action()) {
+	case SplitRegion:
+		do_split_action ();
+		break;
+
+	default:
+		break;
+	}
+}
+
+void
+RhythmFerret::do_split_action ()
+{
+	/* this can/will change the current selection, so work with a copy */
+
+	RegionSelection& regions (editor.get_selection().regions);
+
+	if (regions.empty()) {
+		return;
+	}
+
+	session->begin_reversible_command (_("split regions (rhythm ferret)"));
+
+	for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ) {
+
+		RegionSelection::iterator tmp;
+
+		tmp = i;
+		++tmp;
+
+		(*i)->get_time_axis_view().hide_temporary_lines ();
+
+		editor.split_region_at_points ((*i)->region(), current_results);
+
+		/* i is invalid at this point */
+
+		i = tmp;
+	}
+
+}
+
+void
+RhythmFerret::set_session (Session* s)
+{
+	ArdourDialog::set_session (s);
+	current_results.clear ();
+}