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livetrax/gtk2_ardour/analysis_window.cc

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/*
Copyright (C) 2006 Paul Davis
Written by Sampo Savolainen
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 <gtkmm2ext/gtk_ui.h>
#include <gtkmm/stock.h>
#include <gtkmm/label.h>
#include <gtkmm/treemodel.h>
#include <gtkmm/treeiter.h>
#include "ardour/audioregion.h"
#include "ardour/audioplaylist.h"
#include "ardour/types.h"
#include "analysis_window.h"
#include "route_ui.h"
#include "time_axis_view.h"
#include "public_editor.h"
#include "selection.h"
#include "audio_region_view.h"
#include "pbd/i18n.h"
using namespace ARDOUR;
using namespace PBD;
AnalysisWindow::AnalysisWindow()
: source_selection_label (_("Signal source"))
, source_selection_ranges_rb (_("Selected ranges"))
, source_selection_regions_rb (_("Selected regions"))
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, show_minmax_button (_("Show frequency power range"))
, show_normalized_button (_("Fit dB range"))
, show_proportional_button (_("Proportional Spectrum, -18dB"))
, fft_graph (16384)
{
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set_name (_("FFT analysis window"));
set_title (_("Spectral Analysis"));
track_list_ready = false;
// Left side: track list + controls
tlmodel = Gtk::ListStore::create(tlcols);
track_list.set_model (tlmodel);
track_list.append_column(_("Track"), tlcols.trackname);
track_list.append_column_editable(_("Show"), tlcols.visible);
track_list.set_headers_visible(true);
track_list.set_reorderable(false);
track_list.get_selection()->set_mode (Gtk::SELECTION_NONE);
Gtk::TreeViewColumn* track_col = track_list.get_column(0);
Gtk::CellRendererText* renderer = dynamic_cast<Gtk::CellRendererText*>(track_list.get_column_cell_renderer (0));
track_col->add_attribute(renderer->property_foreground_gdk(), tlcols.color);
track_col->set_expand(true);
tlmodel->signal_row_changed().connect (
sigc::mem_fun(*this, &AnalysisWindow::track_list_row_changed) );
fft_graph.set_analysis_window(this);
vbox.pack_start(track_list);
// "Signal source"
vbox.pack_start(source_selection_label, false, false);
{
Gtk::RadioButtonGroup group = source_selection_ranges_rb.get_group();
source_selection_regions_rb.set_group(group);
source_selection_ranges_rb.set_active();
vbox.pack_start (source_selection_ranges_rb, false, false);
vbox.pack_start (source_selection_regions_rb, false, false);
// "Selected ranges" radio
source_selection_ranges_rb.signal_toggled().connect (
sigc::bind ( sigc::mem_fun(*this, &AnalysisWindow::source_selection_changed), &source_selection_ranges_rb));
// "Selected regions" radio
source_selection_regions_rb.signal_toggled().connect (
sigc::bind ( sigc::mem_fun(*this, &AnalysisWindow::source_selection_changed), &source_selection_regions_rb));
}
// Analyze button
refresh_button.set_name("EditorGTKButton");
refresh_button.set_label(_("Re-analyze data"));
refresh_button.signal_clicked().connect ( sigc::bind ( sigc::mem_fun(*this, &AnalysisWindow::analyze_data), &refresh_button));
vbox.pack_start(refresh_button, false, false, 10);
vbox.pack_start(hseparator1, false, false);
// Feature checkboxes
// normalize, fit y-range
show_normalized_button.signal_toggled().connect( sigc::mem_fun(*this, &AnalysisWindow::show_normalized_changed));
vbox.pack_start(show_normalized_button, false, false);
// minmax
show_minmax_button.signal_toggled().connect( sigc::mem_fun(*this, &AnalysisWindow::show_minmax_changed));
vbox.pack_start(show_minmax_button, false, false);
// pink-noise / proportional spectrum
show_proportional_button.signal_toggled().connect( sigc::mem_fun(*this, &AnalysisWindow::show_proportional_changed));
vbox.pack_start(show_proportional_button, false, false);
hbox.pack_start(vbox, Gtk::PACK_SHRINK);
// Analysis window on the right
fft_graph.ensure_style();
hbox.add(fft_graph);
// And last we pack the hbox
add(hbox);
show_all();
track_list.show_all();
}
AnalysisWindow::~AnalysisWindow()
{
}
void
AnalysisWindow::show_minmax_changed()
{
fft_graph.set_show_minmax(show_minmax_button.get_active());
}
void
AnalysisWindow::show_normalized_changed()
{
fft_graph.set_show_normalized(show_normalized_button.get_active());
}
void
AnalysisWindow::show_proportional_changed()
{
fft_graph.set_show_proportioanl(show_proportional_button.get_active());
}
void
AnalysisWindow::set_rangemode()
{
source_selection_ranges_rb.set_active(true);
}
void
AnalysisWindow::set_regionmode()
{
source_selection_regions_rb.set_active(true);
}
void
AnalysisWindow::track_list_row_changed(const Gtk::TreeModel::Path& /*path*/, const Gtk::TreeModel::iterator& /*iter*/)
{
if (track_list_ready) {
fft_graph.redraw();
}
}
void
AnalysisWindow::clear_tracklist()
{
// Empty track list & free old graphs
Gtk::TreeNodeChildren children = track_list.get_model()->children();
for (Gtk::TreeIter i = children.begin(); i != children.end(); i++) {
Gtk::TreeModel::Row row = *i;
FFTResult *delete_me = row[tlcols.graph];
if (delete_me == 0)
continue;
// Make sure it's not drawn
row[tlcols.graph] = 0;
delete delete_me;
}
tlmodel->clear();
}
void
AnalysisWindow::analyze()
{
analyze_data(&refresh_button);
}
void
AnalysisWindow::analyze_data (Gtk::Button * /*button*/)
{
track_list_ready = false;
{
Glib::Threads::Mutex::Lock lm (track_list_lock);
// Empty track list & free old graphs
clear_tracklist();
// first we gather the FFTResults of all tracks
Sample *buf = (Sample *) malloc(sizeof(Sample) * fft_graph.windowSize());
Sample *mixbuf = (Sample *) malloc(sizeof(Sample) * fft_graph.windowSize());
float *gain = (float *) malloc(sizeof(float) * fft_graph.windowSize());
Selection& s (PublicEditor::instance().get_selection());
// if timeSelection
if (source_selection_ranges_rb.get_active()) {
TimeSelection ts = s.time;
for (TrackSelection::iterator i = s.tracks.begin(); i != s.tracks.end(); ++i) {
boost::shared_ptr<AudioPlaylist> pl
= boost::dynamic_pointer_cast<AudioPlaylist>((*i)->playlist());
if (!pl)
continue;
RouteUI *rui = dynamic_cast<RouteUI *>(*i);
int n_inputs = rui->route()->n_inputs().n_audio(); // FFT is audio only
// Busses don't have playlists, so we need to check that we actually are working with a playlist
if (!pl || !rui)
continue;
// std::cerr << "Analyzing ranges on track " << rui->route()->name() << std::endl;
FFTResult *res = fft_graph.prepareResult(rui->route_color(), rui->route()->name());
for (std::list<AudioRange>::iterator j = ts.begin(); j != ts.end(); ++j) {
int n;
for (int channel = 0; channel < n_inputs; channel++) {
framecnt_t x = 0;
while (x < j->length()) {
// TODO: What about stereo+ channels? composite all to one, I guess
n = fft_graph.windowSize();
if (x + n >= (*j).length() ) {
n = (*j).length() - x;
}
n = pl->read(buf, mixbuf, gain, (*j).start + x, n, channel);
if ( n < fft_graph.windowSize()) {
for (int j = n; j < fft_graph.windowSize(); j++) {
buf[j] = 0.0;
}
}
res->analyzeWindow(buf);
x += n;
}
}
}
res->finalize();
Gtk::TreeModel::Row newrow = *(tlmodel)->append();
newrow[tlcols.trackname] = rui->route()->name();
newrow[tlcols.visible] = true;
newrow[tlcols.color] = rui->route_color ();
newrow[tlcols.graph] = res;
}
} else if (source_selection_regions_rb.get_active()) {
RegionSelection ars = s.regions;
// std::cerr << "Analyzing selected regions" << std::endl;
for (RegionSelection::iterator j = ars.begin(); j != ars.end(); ++j) {
// Check that the region is actually audio (so we can analyze it)
AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*j);
if (!arv)
continue;
// std::cerr << " - " << (*j)->region().name() << ": " << (*j)->region().length() << " samples starting at " << (*j)->region().position() << std::endl;
RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(&arv->get_time_axis_view());
if (!rtav) {
/* shouldn't happen... */
continue;
}
FFTResult *res = fft_graph.prepareResult(rtav->color(), arv->get_item_name());
int n;
for (unsigned int channel = 0; channel < arv->region()->n_channels(); channel++) {
framecnt_t x = 0;
framecnt_t length = arv->region()->length();
while (x < length) {
// TODO: What about stereo+ channels? composite all to one, I guess
n = fft_graph.windowSize();
if (x + n >= length ) {
n = length - x;
}
memset (buf, 0, n * sizeof (Sample));
n = arv->audio_region()->read_at(buf, mixbuf, gain, arv->region()->position() + x, n, channel);
if (n == 0)
break;
if ( n < fft_graph.windowSize()) {
for (int j = n; j < fft_graph.windowSize(); j++) {
buf[j] = 0.0;
}
}
res->analyzeWindow(buf);
x += n;
}
}
// std::cerr << "Found: " << (*j)->get_item_name() << std::endl;
res->finalize();
Gtk::TreeModel::Row newrow = *(tlmodel)->append();
newrow[tlcols.trackname] = arv->get_item_name();
newrow[tlcols.visible] = true;
newrow[tlcols.color] = rtav->color();
newrow[tlcols.graph] = res;
}
}
free(buf);
free(mixbuf);
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free(gain);
track_list_ready = true;
} /* end lock */
fft_graph.redraw();
}
void
AnalysisWindow::source_selection_changed (Gtk::RadioButton *button)
{
// We are only interested in activation signals, not deactivation signals
if (!button->get_active())
return;
/*
cerr << "AnalysisWindow: signal source = ";
if (button == &source_selection_ranges_rb) {
cerr << "selected ranges" << endl;
} else if (button == &source_selection_regions_rb) {
cerr << "selected regions" << endl;
} else {
cerr << "unknown?" << endl;
}
*/
}
void
AnalysisWindow::display_model_changed (Gtk::RadioButton *button)
{
// We are only interested in activation signals, not deactivation signals
if (!button->get_active())
return;
/*
cerr << "AnalysisWindow: display model = ";
if (button == &display_model_composite_separate_rb) {
cerr << "separate composites of tracks" << endl;
} else if (button == &display_model_composite_all_tracks_rb) {
cerr << "composite of all tracks" << endl;
} else {
cerr << "unknown?" << endl;
}
*/
}