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livetrax/gtk2_ardour/rhythm_ferret.cc

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#include <gtkmm/stock.h>
#include <gtkmm2ext/utils.h>
#include "pbd/memento_command.h"
#include "pbd/convert.h"
#include "ardour/transient_detector.h"
#include "ardour/onset_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 "editor.h"
#include "utils.h"
#include "time_axis_view.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
};
static const gchar * _onset_function_strings[] = {
N_("Energy Based"),
N_("Spectral Difference"),
N_("High-Frequency Content"),
N_("Complex Domain"),
N_("Phase Deviation"),
N_("Kullback-Liebler"),
N_("Modified Kullback-Liebler"),
0
};
static const gchar * _operation_strings[] = {
N_("Split region"),
N_("Snap regions"),
N_("Conform regions"),
0
};
RhythmFerret::RhythmFerret (Editor& e)
: ArdourDialog (_("Rhythm Ferret"))
, editor (e)
, detection_threshold_adjustment (3, 0, 20, 1, 4)
, detection_threshold_scale (detection_threshold_adjustment)
, sensitivity_adjustment (40, 0, 100, 1, 10)
, sensitivity_scale (sensitivity_adjustment)
, analyze_button (_("Analyze"))
, peak_picker_threshold_adjustment (0.3, 0.0, 1.0, 0.01, 0.1)
, peak_picker_threshold_scale (peak_picker_threshold_adjustment)
, silence_threshold_adjustment (-90.0, -120.0, 0.0, 1, 10)
, silence_threshold_scale (silence_threshold_adjustment)
, trigger_gap_adjustment (3, 0, 100, 1, 10)
, trigger_gap_spinner (trigger_gap_adjustment)
, action_button (Stock::APPLY)
{
operation_strings = I18N (_operation_strings);
Gtkmm2ext::set_popdown_strings (operation_selector, operation_strings);
operation_selector.set_active (0);
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());
analysis_mode_selector.signal_changed().connect (sigc::mem_fun (*this, &RhythmFerret::analysis_mode_changed));
onset_function_strings = I18N (_onset_function_strings);
Gtkmm2ext::set_popdown_strings (onset_detection_function_selector, onset_function_strings);
/* Onset plugin uses complex domain as default function
XXX there should be a non-hacky way to set this
*/
onset_detection_function_selector.set_active_text (onset_function_strings[3]);
Table* t = manage (new Table (7, 3));
t->set_spacings (12);
int n = 0;
t->attach (*manage (new Label (_("Mode"), 1, 0.5)), 0, 1, n, n + 1, FILL);
t->attach (analysis_mode_selector, 1, 2, n, n + 1, FILL);
++n;
t->attach (*manage (new Label (_("Detection function"), 1, 0.5)), 0, 1, n, n + 1, FILL);
t->attach (onset_detection_function_selector, 1, 2, n, n + 1, FILL);
++n;
t->attach (*manage (new Label (_("Trigger gap"), 1, 0.5)), 0, 1, n, n + 1, FILL);
t->attach (trigger_gap_spinner, 1, 2, n, n + 1, FILL);
t->attach (*manage (new Label (_("ms"))), 2, 3, n, n + 1, FILL);
++n;
t->attach (*manage (new Label (_("Threshold"), 1, 0.5)), 0, 1, n, n + 1, FILL);
t->attach (detection_threshold_scale, 1, 2, n, n + 1, FILL);
t->attach (*manage (new Label (_("dB"))), 2, 3, n, n + 1, FILL);
++n;
t->attach (*manage (new Label (_("Peak threshold"), 1, 0.5)), 0, 1, n, n + 1, FILL);
t->attach (peak_picker_threshold_scale, 1, 2, n, n + 1, FILL);
t->attach (*manage (new Label (_("dB"))), 2, 3, n, n + 1, FILL);
++n;
t->attach (*manage (new Label (_("Silence threshold"), 1, 0.5)), 0, 1, n, n + 1, FILL);
t->attach (silence_threshold_scale, 1, 2, n, n + 1, FILL);
t->attach (*manage (new Label (_("dB"))), 2, 3, n, n + 1, FILL);
++n;
t->attach (*manage (new Label (_("Sensitivity"), 1, 0.5)), 0, 1, n, n + 1, FILL);
t->attach (sensitivity_scale, 1, 2, n, n + 1, FILL);
++n;
t->attach (*manage (new Label (_("Operation"), 1, 0.5)), 0, 1, n, n + 1, FILL);
t->attach (operation_selector, 1, 2, n, n + 1, FILL);
++n;
analyze_button.signal_clicked().connect (sigc::mem_fun (*this, &RhythmFerret::run_analysis));
action_button.signal_clicked().connect (sigc::mem_fun (*this, &RhythmFerret::do_action));
get_vbox()->set_border_width (6);
get_vbox()->set_spacing (6);
get_vbox()->pack_start (*t);
add_action_widget (analyze_button, 1);
add_action_widget (action_button, 0);
show_all ();
analysis_mode_changed ();
}
void
RhythmFerret::analysis_mode_changed ()
{
bool const perc = get_analysis_mode() == PercussionOnset;
detection_threshold_scale.set_sensitive (perc);
sensitivity_scale.set_sensitive (perc);
onset_detection_function_selector.set_sensitive (!perc);
peak_picker_threshold_scale.set_sensitive (!perc);
silence_threshold_scale.set_sensitive (!perc);
}
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 (operation_selector.get_active_row_number() == 1) {
return SnapRegionsToGrid;
} else if (operation_selector.get_active_row_number() == 2) {
return ConformRegion;
}
return SplitRegion;
}
void
RhythmFerret::run_analysis ()
{
if (!_session) {
return;
}
clear_transients ();
regions_with_transients = editor.get_selection().regions;
current_results.clear ();
if (regions_with_transients.empty()) {
return;
}
for (RegionSelection::iterator i = regions_with_transients.begin(); i != regions_with_transients.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;
case NoteOnset:
run_note_onset_analysis (rd, (*i)->region()->position(), current_results);
break;
default:
break;
}
(*i)->region()->set_transients (current_results);
current_results.clear();
}
}
int
RhythmFerret::run_percussion_onset_analysis (boost::shared_ptr<Readable> readable, framepos_t /*offset*/, AnalysisFeatureList& results)
{
TransientDetector t (_session->frame_rate());
for (uint32_t i = 0; i < readable->n_channels(); ++i) {
AnalysisFeatureList 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 (AnalysisFeatureList::iterator x = these_results.begin(); x != these_results.end(); ++x) {
// (*x) += offset;
//}
/* merge */
results.insert (results.end(), these_results.begin(), these_results.end());
these_results.clear ();
}
if (!results.empty()) {
TransientDetector::cleanup_transients (results, _session->frame_rate(), trigger_gap_adjustment.get_value());
}
return 0;
}
int
RhythmFerret::get_note_onset_function ()
{
string txt = onset_detection_function_selector.get_active_text();
for (int n = 0; _onset_function_strings[n]; ++n) {
/* compare translated versions */
if (txt == onset_function_strings[n]) {
return n;
}
}
fatal << string_compose (_("programming error: %1 (%2)"), X_("illegal note onset function string"), txt)
<< endmsg;
/*NOTREACHED*/
return -1;
}
int
RhythmFerret::run_note_onset_analysis (boost::shared_ptr<Readable> readable, framepos_t /*offset*/, AnalysisFeatureList& results)
{
try {
OnsetDetector t (_session->frame_rate());
for (uint32_t i = 0; i < readable->n_channels(); ++i) {
AnalysisFeatureList these_results;
t.reset ();
t.set_function (get_note_onset_function());
t.set_silence_threshold (silence_threshold_adjustment.get_value());
t.set_peak_threshold (peak_picker_threshold_adjustment.get_value());
if (t.run ("", readable.get(), i, these_results)) {
continue;
}
/* translate all transients to give absolute position */
//for (AnalysisFeatureList::iterator x = these_results.begin(); x != these_results.end(); ++x) {
// (*x) += offset;
//}
/* merge */
results.insert (results.end(), these_results.begin(), these_results.end());
these_results.clear ();
}
} catch (failed_constructor& err) {
error << "Could not load note onset detection plugin" << endmsg;
return -1;
}
if (!results.empty()) {
OnsetDetector::cleanup_onsets (results, _session->frame_rate(), trigger_gap_adjustment.get_value());
}
return 0;
}
void
RhythmFerret::do_action ()
{
if (!_session) {
return;
}
switch (get_action()) {
case SplitRegion:
do_split_action ();
break;
case SnapRegionsToGrid:
editor.snap_regions_to_grid();
break;
case ConformRegion:
editor.close_region_gaps();
break;
default:
break;
}
}
void
RhythmFerret::do_split_action ()
{
/* XXX: this is quite a special-case; (currently) the only operation which is
performed on the selection only (without entered_regionview or the edit point
being considered)
*/
RegionSelection regions = editor.get_regions_from_selection();
if (regions.empty()) {
return;
}
_session->begin_reversible_command (_("split regions (rhythm ferret)"));
/* Merge the transient positions for regions in consideration */
AnalysisFeatureList merged_features;
for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ++i) {
AnalysisFeatureList features;
features = (*i)->region()->transients();
merged_features.insert (merged_features.end(), features.begin(), features.end());
}
merged_features.sort();
merged_features.unique();
for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ) {
RegionSelection::iterator tmp;
tmp = i;
++tmp;
AnalysisFeatureList features;
features = (*i)->region()->transients();
editor.split_region_at_points ((*i)->region(), merged_features, false, true);
/* i is invalid at this point */
i = tmp;
}
_session->commit_reversible_command ();
}
void
RhythmFerret::set_session (Session* s)
{
ArdourDialog::set_session (s);
current_results.clear ();
}
void
RhythmFerret::on_hide ()
{
ArdourDialog::on_hide ();
clear_transients ();
}
/* Clear any transients that we have added */
void
RhythmFerret::clear_transients ()
{
current_results.clear ();
for (RegionSelection::iterator i = regions_with_transients.begin(); i != regions_with_transients.end(); ++i) {
(*i)->region()->set_transients (current_results);
}
regions_with_transients.clear ();
}