/*
- Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2020 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
+
#include "audio_plot.h"
+#include "wx_util.h"
+#include "film_viewer.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 <boost/bind/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::shared_ptr;
+using boost::optional;
+using std::shared_ptr;
+using std::weak_ptr;
+#if BOOST_VERSION >= 106100
+using namespace boost::placeholders;
+#endif
+using namespace dcpomatic;
+
int const AudioPlot::_minimum = -70;
+int const AudioPlot::_cursor_size = 8;
int const AudioPlot::max_smoothing = 128;
-AudioPlot::AudioPlot (wxWindow* parent)
+
+AudioPlot::AudioPlot (wxWindow* parent, weak_ptr<FilmViewer> viewer)
: wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
+ , _viewer (viewer)
, _smoothing (max_smoothing / 2)
, _gain_correction (0)
{
#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));
+ Bind (wxEVT_LEFT_DOWN, boost::bind(&AudioPlot::left_down, this));
SetMinSize (wxSize (640, 512));
}
+
void
AudioPlot::set_analysis (shared_ptr<AudioAnalysis> a)
{
Refresh ();
}
+
void
AudioPlot::set_channel_visible (int c, bool v)
{
Refresh ();
}
+
void
AudioPlot::set_type_visible (int t, bool v)
{
Refresh ();
}
+
void
AudioPlot::set_message (wxString s)
{
Refresh ();
}
+
struct Metrics
{
double db_label_width;
int height;
int y_origin;
- float x_scale;
+ float x_scale; ///< pixels per data point
float y_scale;
};
+
void
AudioPlot::paint ()
{
wxPaintDC dc (this);
- wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
+ auto gc = wxGraphicsContext::Create (dc);
if (!gc) {
return;
}
+ gc->SetAntialiasMode (wxANTIALIAS_DEFAULT);
+
if (!_analysis || _analysis->channels() == 0) {
gc->SetFont (gc->CreateFont (*wxNORMAL_FONT));
gc->DrawText (_message, 32, 32);
+ delete gc;
return;
}
- wxGraphicsPath grid = gc->CreatePath ();
+ auto h_grid = gc->CreatePath ();
gc->SetFont (gc->CreateFont (*wxSMALL_FONT));
wxDouble db_label_height;
wxDouble db_label_descent;
for (int i = _minimum; i <= 0; i += 10) {
int const y = (metrics.height - (i - _minimum) * metrics.y_scale) - metrics.y_origin;
- grid.MoveToPoint (metrics.db_label_width - 4, y);
- grid.AddLineToPoint (metrics.db_label_width + data_width, y);
+ 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 (wxPen (wxColour (200, 200, 200)));
- gc->StrokePath (grid);
+ gc->StrokePath (h_grid);
+
+ /* Draw an x axis with marks */
+
+ auto 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));
- gc->DrawText (_("Time"), data_width, metrics.height - metrics.y_origin + db_label_height / 2);
+ auto 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;
+
+ auto 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);
if (_type_visible[AudioPoint::PEAK]) {
for (int c = 0; c < MAX_DCP_AUDIO_CHANNELS; ++c) {
- wxGraphicsPath p = gc->CreatePath ();
+ auto p = gc->CreatePath ();
if (_channel_visible[c] && c < _analysis->channels()) {
plot_peak (p, c, metrics);
}
- wxColour const col = _colours[c];
+ auto const col = _colours[c];
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_DCP_AUDIO_CHANNELS; ++c) {
- wxGraphicsPath p = gc->CreatePath ();
+ auto p = gc->CreatePath ();
if (_channel_visible[c] && c < _analysis->channels()) {
plot_rms (p, c, metrics);
}
- wxColour const col = _colours[c];
+ auto const col = _colours[c];
gc->SetPen (wxPen (col, 1, wxPENSTYLE_SOLID));
gc->StrokePath (p);
}
}
- wxGraphicsPath axes = gc->CreatePath ();
+ auto axes = gc->CreatePath ();
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) {
+ auto 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, Metrics const & metrics) const
{
p = 1e-4;
}
- return metrics.height - (20 * log10(p) - _minimum) * metrics.y_scale - metrics.y_origin;
+ return metrics.height - (linear_to_db(p) - _minimum) * metrics.y_scale - metrics.y_origin;
}
+
void
AudioPlot::plot_peak (wxGraphicsPath& path, int channel, Metrics const & metrics) const
{
return;
}
- path.MoveToPoint (metrics.db_label_width, y_for_linear (get_point(channel, 0)[AudioPoint::PEAK], metrics));
+ _peak[channel] = PointList ();
float peak = 0;
int const N = _analysis->points(channel);
peak = 0;
}
- path.AddLineToPoint (metrics.db_label_width + i * metrics.x_scale, y_for_linear (peak, metrics));
+ _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()),
+ linear_to_db(peak)
+ )
+ );
+ }
+
+ DCPOMATIC_ASSERT (_peak.find(channel) != _peak.end());
+
+ path.MoveToPoint (_peak[channel][0].draw);
+ for (auto const& i: _peak[channel]) {
+ path.AddLineToPoint (i.draw);
}
}
+
void
AudioPlot::plot_rms (wxGraphicsPath& path, int channel, Metrics const & metrics) const
{
return;
}
- path.MoveToPoint (metrics.db_label_width, y_for_linear (get_point(channel, 0)[AudioPoint::RMS], metrics));
+ _rms[channel] = PointList();
list<float> smoothing;
p = sqrt (p / smoothing.size ());
}
- path.AddLineToPoint (metrics.db_label_width + i * metrics.x_scale, y_for_linear (p, metrics));
+ _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()),
+ linear_to_db(p)
+ )
+ );
+ }
+
+ DCPOMATIC_ASSERT (_rms.find(channel) != _rms.end());
+
+ path.MoveToPoint (_rms[channel][0].draw);
+ for (auto const& i: _rms[channel]) {
+ path.AddLineToPoint (i.draw);
}
}
+
void
AudioPlot::set_smoothing (int s)
{
_smoothing = s;
+ _rms.clear ();
+ _peak.clear ();
Refresh ();
}
+
void
AudioPlot::set_gain_correction (double gain)
{
Refresh ();
}
+
AudioPoint
AudioPlot::get_point (int channel, int point) const
{
- AudioPoint p = _analysis->get_point (channel, point);
+ auto p = _analysis->get_point (channel, point);
for (int i = 0; i < AudioPoint::COUNT; ++i) {
- p[i] *= pow (10, _gain_correction / 20);
+ p[i] *= db_to_linear(_gain_correction);
}
return p;
}
+
/** @param n Channel index.
* @return Colour used by that channel in the plot.
*/
DCPOMATIC_ASSERT (n < int(_colours.size()));
return _colours[n];
}
+
+
+void
+AudioPlot::left_down ()
+{
+ if (_cursor) {
+ if (auto fv = _viewer.lock()) {
+ fv->seek (_cursor->time, true);
+ }
+ }
+}
+
+
+void
+AudioPlot::mouse_moved (wxMouseEvent& ev)
+{
+ double min_dist = DBL_MAX;
+ Point min_point;
+
+ auto search = [this](map<int, PointList> const & search, wxMouseEvent const & ev, double& min_dist, Point& min_point) {
+ for (auto const& i: search) {
+ if (_channel_visible[i.first]) {
+ for (auto 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;
+ }
+ }
+ }
+ }
+ };
+
+ if (_type_visible[AudioPoint::RMS]) {
+ search (_rms, ev, min_dist, min_point);
+ }
+ if (_type_visible[AudioPoint::PEAK]) {
+ search (_peak, ev, min_dist, min_point);
+ }
+
+ _cursor = boost::none;
+
+ 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 = boost::none;
+ Refresh ();
+ Cursor (optional<DCPTime>(), optional<float>());
+}
projects / dcpomatic.git / blobdiff