/*
- Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2018 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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,
+ DCP-o-matic 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.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <iostream>
-#include <boost/bind.hpp>
-#include <wx/graphics.h>
#include "audio_plot.h"
#include "lib/audio_decoder.h"
#include "lib/audio_analysis.h"
+#include "lib/compose.hpp"
#include "wx/wx_util.h"
+#include <wx/graphics.h>
+#include <boost/bind.hpp>
+#include <iostream>
+#include <cfloat>
using std::cout;
using std::vector;
using std::list;
using std::max;
using std::min;
+using std::map;
using boost::bind;
+using boost::optional;
using boost::shared_ptr;
+using namespace dcpomatic;
int const AudioPlot::_minimum = -70;
+int const AudioPlot::_cursor_size = 8;
int const AudioPlot::max_smoothing = 128;
AudioPlot::AudioPlot (wxWindow* parent)
: wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
- , _gain (0)
, _smoothing (max_smoothing / 2)
- , _message (_("Please wait; audio is being analysed..."))
+ , _gain_correction (0)
{
-#ifndef __WXOSX__
+#ifndef __WXOSX__
SetDoubleBuffered (true);
-#endif
+#endif
- for (int i = 0; i < MAX_AUDIO_CHANNELS; ++i) {
+ for (int i = 0; i < MAX_DCP_AUDIO_CHANNELS; ++i) {
_channel_visible[i] = false;
}
_colours.push_back (wxColour ( 0, 255, 0));
_colours.push_back (wxColour (139, 0, 204));
_colours.push_back (wxColour ( 0, 0, 255));
- _colours.push_back (wxColour (100, 100, 100));
-
+ _colours.push_back (wxColour ( 0, 139, 0));
+ _colours.push_back (wxColour ( 0, 0, 139));
+ _colours.push_back (wxColour (255, 255, 0));
+ _colours.push_back (wxColour ( 0, 255, 255));
+ _colours.push_back (wxColour (255, 0, 255));
+ _colours.push_back (wxColour (255, 0, 139));
+ _colours.push_back (wxColour (139, 0, 255));
+
+ _colours.push_back (wxColour (139, 139, 255));
+ _colours.push_back (wxColour ( 0, 139, 255));
+ _colours.push_back (wxColour (255, 139, 139));
+ _colours.push_back (wxColour (255, 139, 0));
+
+ set_analysis (shared_ptr<AudioAnalysis> ());
+
+#if MAX_DCP_AUDIO_CHANNELS != 16
+#warning AudioPlot::AudioPlot is expecting the wrong MAX_DCP_AUDIO_CHANNELS
+#endif
+
Bind (wxEVT_PAINT, boost::bind (&AudioPlot::paint, this));
-
+ Bind (wxEVT_MOTION, boost::bind (&AudioPlot::mouse_moved, this, _1));
+ Bind (wxEVT_LEAVE_WINDOW, boost::bind (&AudioPlot::mouse_leave, this, _1));
+
SetMinSize (wxSize (640, 512));
}
{
_analysis = a;
- for (int i = 0; i < MAX_AUDIO_CHANNELS; ++i) {
- _channel_visible[i] = false;
+ if (!a) {
+ _message = _("Please wait; audio is being analysed...");
}
- for (int i = 0; i < AudioPoint::COUNT; ++i) {
- _type_visible[i] = false;
- }
-
Refresh ();
}
Refresh ();
}
+struct Metrics
+{
+ double db_label_width;
+ int height;
+ int y_origin;
+ float x_scale; ///< pixels per data point
+ float y_scale;
+};
+
void
AudioPlot::paint ()
{
return;
}
- wxGraphicsPath grid = gc->CreatePath ();
+ wxGraphicsPath h_grid = gc->CreatePath ();
gc->SetFont (gc->CreateFont (*wxSMALL_FONT));
wxDouble db_label_height;
wxDouble db_label_descent;
wxDouble db_label_leading;
- gc->GetTextExtent (wxT ("-80dB"), &_db_label_width, &db_label_height, &db_label_descent, &db_label_leading);
+ Metrics metrics;
+ gc->GetTextExtent (wxT ("-80dB"), &metrics.db_label_width, &db_label_height, &db_label_descent, &db_label_leading);
+
+ metrics.db_label_width += 8;
- _db_label_width += 8;
-
- int const data_width = GetSize().GetWidth() - _db_label_width;
+ int const data_width = GetSize().GetWidth() - metrics.db_label_width;
/* Assume all channels have the same number of points */
- _x_scale = data_width / float (_analysis->points (0));
- _height = GetSize().GetHeight ();
- _y_origin = 32;
- _y_scale = (_height - _y_origin) / -_minimum;
+ metrics.x_scale = data_width / float (_analysis->points (0));
+ metrics.height = GetSize().GetHeight ();
+ metrics.y_origin = 32;
+ metrics.y_scale = (metrics.height - metrics.y_origin) / -_minimum;
for (int i = _minimum; i <= 0; i += 10) {
- int const y = (_height - (i - _minimum) * _y_scale) - _y_origin;
- grid.MoveToPoint (_db_label_width - 4, y);
- grid.AddLineToPoint (_db_label_width + data_width, y);
+ int const y = (metrics.height - (i - _minimum) * metrics.y_scale) - metrics.y_origin;
+ h_grid.MoveToPoint (metrics.db_label_width - 4, y);
+ h_grid.AddLineToPoint (metrics.db_label_width + data_width, y);
gc->DrawText (std_to_wx (String::compose ("%1dB", i)), 0, y - (db_label_height / 2));
}
- gc->SetPen (*wxLIGHT_GREY_PEN);
- gc->StrokePath (grid);
+ gc->SetPen (wxPen (wxColour (200, 200, 200)));
+ gc->StrokePath (h_grid);
+
+ /* Draw an x axis with marks */
+
+ wxGraphicsPath v_grid = gc->CreatePath ();
+
+ DCPOMATIC_ASSERT (_analysis->samples_per_point() != 0.0);
+ double const pps = _analysis->sample_rate() * metrics.x_scale / _analysis->samples_per_point();
+
+ gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (0, 0, 0), 1, wxPENSTYLE_SOLID));
+
+ double const mark_interval = calculate_mark_interval (rint (128 / pps));
+
+ DCPTime t = DCPTime::from_seconds (mark_interval);
+ while ((t.seconds() * pps) < data_width) {
+ double tc = t.seconds ();
+ int const h = tc / 3600;
+ tc -= h * 3600;
+ int const m = tc / 60;
+ tc -= m * 60;
+ int const s = tc;
+
+ wxString str = wxString::Format (wxT ("%02d:%02d:%02d"), h, m, s);
+ wxDouble str_width;
+ wxDouble str_height;
+ wxDouble str_descent;
+ wxDouble str_leading;
+ gc->GetTextExtent (str, &str_width, &str_height, &str_descent, &str_leading);
+
+ int const tx = llrintf (metrics.db_label_width + t.seconds() * pps);
+ gc->DrawText (str, tx - str_width / 2, metrics.height - metrics.y_origin + db_label_height);
+
+ v_grid.MoveToPoint (tx, metrics.height - metrics.y_origin + 4);
+ v_grid.AddLineToPoint (tx, metrics.y_origin);
+
+ t += DCPTime::from_seconds (mark_interval);
+ }
+
+ gc->SetPen (wxPen (wxColour (200, 200, 200)));
+ gc->StrokePath (v_grid);
- gc->DrawText (_("Time"), data_width, _height - _y_origin + db_label_height / 2);
-
if (_type_visible[AudioPoint::PEAK]) {
- for (int c = 0; c < MAX_AUDIO_CHANNELS; ++c) {
+ for (int c = 0; c < MAX_DCP_AUDIO_CHANNELS; ++c) {
wxGraphicsPath p = gc->CreatePath ();
if (_channel_visible[c] && c < _analysis->channels()) {
- plot_peak (p, c);
+ plot_peak (p, c, metrics);
}
wxColour const col = _colours[c];
- gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (col.Red(), col.Green(), col.Blue(), col.Alpha() / 2), 1, wxPENSTYLE_SOLID));
+ gc->SetPen (wxPen (wxColour (col.Red(), col.Green(), col.Blue(), col.Alpha() / 2), 1, wxPENSTYLE_SOLID));
gc->StrokePath (p);
}
}
if (_type_visible[AudioPoint::RMS]) {
- for (int c = 0; c < MAX_AUDIO_CHANNELS; ++c) {
+ for (int c = 0; c < MAX_DCP_AUDIO_CHANNELS; ++c) {
wxGraphicsPath p = gc->CreatePath ();
if (_channel_visible[c] && c < _analysis->channels()) {
- plot_rms (p, c);
+ plot_rms (p, c, metrics);
}
wxColour const col = _colours[c];
- gc->SetPen (*wxThePenList->FindOrCreatePen (col, 1, wxPENSTYLE_SOLID));
+ gc->SetPen (wxPen (col, 1, wxPENSTYLE_SOLID));
gc->StrokePath (p);
}
}
wxGraphicsPath axes = gc->CreatePath ();
- axes.MoveToPoint (_db_label_width, 0);
- axes.AddLineToPoint (_db_label_width, _height - _y_origin);
- axes.AddLineToPoint (_db_label_width + data_width, _height - _y_origin);
- gc->SetPen (*wxBLACK_PEN);
+ axes.MoveToPoint (metrics.db_label_width, 0);
+ axes.AddLineToPoint (metrics.db_label_width, metrics.height - metrics.y_origin);
+ axes.AddLineToPoint (metrics.db_label_width + data_width, metrics.height - metrics.y_origin);
+ gc->SetPen (wxPen (wxColour (0, 0, 0)));
gc->StrokePath (axes);
+ if (_cursor) {
+ wxGraphicsPath cursor = gc->CreatePath ();
+ cursor.MoveToPoint (_cursor->draw.x - _cursor_size / 2, _cursor->draw.y - _cursor_size / 2);
+ cursor.AddLineToPoint (_cursor->draw.x + _cursor_size / 2, _cursor->draw.y + _cursor_size / 2);
+ cursor.MoveToPoint (_cursor->draw.x + _cursor_size / 2, _cursor->draw.y - _cursor_size / 2);
+ cursor.AddLineToPoint (_cursor->draw.x - _cursor_size / 2, _cursor->draw.y + _cursor_size / 2);
+ gc->StrokePath (cursor);
+
+
+ }
+
delete gc;
}
float
-AudioPlot::y_for_linear (float p) const
+AudioPlot::y_for_linear (float p, Metrics const & metrics) const
{
- return _height - (20 * log10(p) - _minimum + _gain) * _y_scale - _y_origin;
+ if (p < 1e-4) {
+ p = 1e-4;
+ }
+
+ return metrics.height - (20 * log10(p) - _minimum) * metrics.y_scale - metrics.y_origin;
}
void
-AudioPlot::plot_peak (wxGraphicsPath& path, int channel) const
+AudioPlot::plot_peak (wxGraphicsPath& path, int channel, Metrics const & metrics) const
{
if (_analysis->points (channel) == 0) {
return;
}
-
- path.MoveToPoint (_db_label_width, y_for_linear (_analysis->get_point(channel, 0)[AudioPoint::PEAK]));
+
+ _peak[channel] = PointList ();
float peak = 0;
int const N = _analysis->points(channel);
for (int i = 0; i < N; ++i) {
- float const p = _analysis->get_point(channel, i)[AudioPoint::PEAK];
+ float const p = get_point(channel, i)[AudioPoint::PEAK];
peak -= 0.01f * (1 - log10 (_smoothing) / log10 (max_smoothing));
if (p > peak) {
peak = p;
} else if (peak < 0) {
peak = 0;
}
-
- path.AddLineToPoint (_db_label_width + i * _x_scale, y_for_linear (peak));
+
+ _peak[channel].push_back (
+ Point (
+ wxPoint (metrics.db_label_width + i * metrics.x_scale, y_for_linear (peak, metrics)),
+ DCPTime::from_frames (i * _analysis->samples_per_point(), _analysis->sample_rate()),
+ 20 * log10(peak)
+ )
+ );
+ }
+
+ DCPOMATIC_ASSERT (_peak.find(channel) != _peak.end());
+
+ path.MoveToPoint (_peak[channel][0].draw);
+ BOOST_FOREACH (Point const & i, _peak[channel]) {
+ path.AddLineToPoint (i.draw);
}
}
void
-AudioPlot::plot_rms (wxGraphicsPath& path, int channel) const
+AudioPlot::plot_rms (wxGraphicsPath& path, int channel, Metrics const & metrics) const
{
if (_analysis->points (channel) == 0) {
return;
}
-
- path.MoveToPoint (_db_label_width, y_for_linear (_analysis->get_point(channel, 0)[AudioPoint::RMS]));
+
+ _rms[channel] = PointList();
list<float> smoothing;
int const N = _analysis->points(channel);
- float const first = _analysis->get_point(channel, 0)[AudioPoint::RMS];
- float const last = _analysis->get_point(channel, N - 1)[AudioPoint::RMS];
+ float const first = get_point(channel, 0)[AudioPoint::RMS];
+ float const last = get_point(channel, N - 1)[AudioPoint::RMS];
int const before = _smoothing / 2;
int const after = _smoothing - before;
-
+
/* Pre-load the smoothing list */
for (int i = 0; i < before; ++i) {
smoothing.push_back (first);
}
for (int i = 0; i < after; ++i) {
if (i < N) {
- smoothing.push_back (_analysis->get_point(channel, i)[AudioPoint::RMS]);
+ smoothing.push_back (get_point(channel, i)[AudioPoint::RMS]);
} else {
smoothing.push_back (last);
}
}
-
+
for (int i = 0; i < N; ++i) {
int const next_for_window = i + after;
if (next_for_window < N) {
- smoothing.push_back (_analysis->get_point(channel, i)[AudioPoint::RMS]);
+ smoothing.push_back (get_point(channel, i)[AudioPoint::RMS]);
} else {
smoothing.push_back (last);
}
p += pow (*j, 2);
}
- if (smoothing.size() > 0) {
+ if (!smoothing.empty ()) {
p = sqrt (p / smoothing.size ());
}
- path.AddLineToPoint (_db_label_width + i * _x_scale, y_for_linear (p));
+ _rms[channel].push_back (
+ Point (
+ wxPoint (metrics.db_label_width + i * metrics.x_scale, y_for_linear (p, metrics)),
+ DCPTime::from_frames (i * _analysis->samples_per_point(), _analysis->sample_rate()),
+ 20 * log10(p)
+ )
+ );
+ }
+
+ DCPOMATIC_ASSERT (_rms.find(channel) != _rms.end());
+
+ path.MoveToPoint (_rms[channel][0].draw);
+ BOOST_FOREACH (Point const & i, _rms[channel]) {
+ path.AddLineToPoint (i.draw);
}
}
void
-AudioPlot::set_gain (float g)
+AudioPlot::set_smoothing (int s)
{
- _gain = g;
+ _smoothing = s;
+ _rms.clear ();
+ _peak.clear ();
Refresh ();
}
void
-AudioPlot::set_smoothing (int s)
+AudioPlot::set_gain_correction (double gain)
{
- _smoothing = s;
+ _gain_correction = gain;
+ Refresh ();
+}
+
+AudioPoint
+AudioPlot::get_point (int channel, int point) const
+{
+ AudioPoint p = _analysis->get_point (channel, point);
+ for (int i = 0; i < AudioPoint::COUNT; ++i) {
+ p[i] *= pow (10, _gain_correction / 20);
+ }
+
+ return p;
+}
+
+/** @param n Channel index.
+ * @return Colour used by that channel in the plot.
+ */
+wxColour
+AudioPlot::colour (int n) const
+{
+ DCPOMATIC_ASSERT (n < int(_colours.size()));
+ return _colours[n];
+}
+
+void
+AudioPlot::search (map<int, PointList> const & search, wxMouseEvent const & ev, double& min_dist, Point& min_point) const
+{
+ for (map<int, PointList>::const_iterator i = search.begin(); i != search.end(); ++i) {
+ BOOST_FOREACH (Point const & j, i->second) {
+ double const dist = pow(ev.GetX() - j.draw.x, 2) + pow(ev.GetY() - j.draw.y, 2);
+ if (dist < min_dist) {
+ min_dist = dist;
+ min_point = j;
+ }
+ }
+ }
+}
+
+void
+AudioPlot::mouse_moved (wxMouseEvent& ev)
+{
+ double min_dist = DBL_MAX;
+ Point min_point;
+
+ search (_rms, ev, min_dist, min_point);
+ search (_peak, ev, min_dist, min_point);
+
+ _cursor = optional<Point> ();
+
+ if (min_dist < DBL_MAX) {
+ wxRect before (min_point.draw.x - _cursor_size / 2, min_point.draw.y - _cursor_size / 2, _cursor_size, _cursor_size);
+ GetParent()->Refresh (true, &before);
+ _cursor = min_point;
+ wxRect after (min_point.draw.x - _cursor_size / 2, min_point.draw.y - _cursor_size / 2, _cursor_size, _cursor_size);
+ GetParent()->Refresh (true, &after);
+ Cursor (min_point.time, min_point.db);
+ }
+}
+
+void
+AudioPlot::mouse_leave (wxMouseEvent &)
+{
+ _cursor = optional<Point> ();
Refresh ();
+ Cursor (optional<DCPTime>(), optional<float>());
}
projects / dcpomatic.git / blobdiff