X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Fwx%2Faudio_plot.cc;h=3da7a50ff2c57dfe515e8a0c16c7c66d816d3dcd;hb=ac69a0eb81e23a341545e05fa12a0e26070cb222;hp=605738b4fdabfdad2fd16ee26c9b14e75c2669c1;hpb=4bf5a8794cf1ed6411e085b35c11777c3508f82e;p=dcpomatic.git diff --git a/src/wx/audio_plot.cc b/src/wx/audio_plot.cc index 605738b4f..3da7a50ff 100644 --- a/src/wx/audio_plot.cc +++ b/src/wx/audio_plot.cc @@ -1,39 +1,46 @@ /* - Copyright (C) 2013-2015 Carl Hetherington + Copyright (C) 2013-2018 Carl Hetherington - 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 . */ #include "audio_plot.h" #include "lib/audio_decoder.h" #include "lib/audio_analysis.h" +#include "lib/compose.hpp" #include "wx/wx_util.h" #include #include #include +#include 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) @@ -66,13 +73,20 @@ AudioPlot::AudioPlot (wxWindow* parent) _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 ()); -#if MAX_DCP_AUDIO_CHANNELS != 12 +#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)); } @@ -115,7 +129,7 @@ struct Metrics double db_label_width; int height; int y_origin; - float x_scale; + float x_scale; ///< pixels per data point float y_scale; }; @@ -135,7 +149,7 @@ 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; @@ -154,15 +168,52 @@ AudioPlot::paint () 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 */ + + 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->DrawText (_("Time"), data_width, metrics.height - metrics.y_origin + db_label_height / 2); + 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) { @@ -195,6 +246,17 @@ AudioPlot::paint () 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; } @@ -215,7 +277,7 @@ AudioPlot::plot_peak (wxGraphicsPath& path, int channel, Metrics const & metrics 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); @@ -228,7 +290,20 @@ AudioPlot::plot_peak (wxGraphicsPath& path, int channel, Metrics const & metrics 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()), + 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); } } @@ -239,7 +314,7 @@ AudioPlot::plot_rms (wxGraphicsPath& path, int channel, Metrics const & metrics) return; } - path.MoveToPoint (metrics.db_label_width, y_for_linear (get_point(channel, 0)[AudioPoint::RMS], metrics)); + _rms[channel] = PointList(); list smoothing; @@ -284,7 +359,20 @@ AudioPlot::plot_rms (wxGraphicsPath& path, int channel, Metrics const & metrics) 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()), + 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); } } @@ -292,6 +380,8 @@ void AudioPlot::set_smoothing (int s) { _smoothing = s; + _rms.clear (); + _peak.clear (); Refresh (); } @@ -312,3 +402,56 @@ AudioPlot::get_point (int channel, int point) const 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 const & search, wxMouseEvent const & ev, double& min_dist, Point& min_point) const +{ + for (map::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 (); + + 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 (); + Refresh (); + Cursor (optional(), optional()); +}