src/wx/audio_panel.cc

   1 /*
   2     Copyright (C) 2012-2013 Carl Hetherington <cth@carlh.net>
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <boost/lexical_cast.hpp>
  21 #include <wx/spinctrl.h>
  22 #include "lib/config.h"
  23 #include "lib/sound_processor.h"
  24 #include "lib/ffmpeg_content.h"
  25 #include "audio_dialog.h"
  26 #include "audio_panel.h"
  27 #include "audio_mapping_view.h"
  28 #include "wx_util.h"
  29 #include "gain_calculator_dialog.h"
  30 #include "film_editor.h"
  31
  32 using std::vector;
  33 using std::cout;
  34 using std::string;
  35 using boost::dynamic_pointer_cast;
  36 using boost::lexical_cast;
  37 using boost::shared_ptr;
  38
  39 AudioPanel::AudioPanel (FilmEditor* e)
  40         : FilmEditorPanel (e, _("Audio"))
  41         , _audio_dialog (0)
  42 {
  43         wxFlexGridSizer* grid = new wxFlexGridSizer (3, DCPOMATIC_SIZER_X_GAP, DCPOMATIC_SIZER_Y_GAP);
  44         _sizer->Add (grid, 0, wxALL, 8);
  45
  46         _show = new wxButton (this, wxID_ANY, _("Show Audio..."));
  47         grid->Add (_show, 1);
  48         grid->AddSpacer (0);
  49         grid->AddSpacer (0);
  50
  51         add_label_to_sizer (grid, this, _("Audio Gain"), true);
  52         {
  53                 wxBoxSizer* s = new wxBoxSizer (wxHORIZONTAL);
  54                 _gain = new wxSpinCtrl (this);
  55                 s->Add (_gain, 1);
  56                 add_label_to_sizer (s, this, _("dB"), false);
  57                 grid->Add (s, 1);
  58         }
  59
  60         _gain_calculate_button = new wxButton (this, wxID_ANY, _("Calculate..."));
  61         grid->Add (_gain_calculate_button);
  62
  63         add_label_to_sizer (grid, this, _("Audio Delay"), false);
  64         {
  65                 wxBoxSizer* s = new wxBoxSizer (wxHORIZONTAL);
  66                 _delay = new wxSpinCtrl (this);
  67                 s->Add (_delay, 1);
  68                 /// TRANSLATORS: this is an abbreviation for milliseconds, the unit of time
  69                 add_label_to_sizer (s, this, _("ms"), false);
  70                 grid->Add (s);
  71         }
  72
  73         grid->AddSpacer (0);
  74
  75         add_label_to_sizer (grid, this, _("Audio Stream"), true);
  76         _stream = new wxChoice (this, wxID_ANY);
  77         grid->Add (_stream, 1, wxEXPAND);
  78         _description = new wxStaticText (this, wxID_ANY, wxT (""));
  79         grid->AddSpacer (0);
  80
  81         grid->Add (_description, 1, wxALIGN_CENTER_VERTICAL | wxLEFT, 8);
  82         grid->AddSpacer (0);
  83         grid->AddSpacer (0);
  84
  85         _mapping = new AudioMappingView (this);
  86         _sizer->Add (_mapping, 1, wxEXPAND | wxALL, 6);
  87
  88         _gain->SetRange (-60, 60);
  89         _delay->SetRange (-1000, 1000);
  90
  91         _delay->Bind                 (wxEVT_COMMAND_SPINCTRL_UPDATED, boost::bind (&AudioPanel::delay_changed, this));
  92         _stream->Bind                (wxEVT_COMMAND_CHOICE_SELECTED,  boost::bind (&AudioPanel::stream_changed, this));
  93         _show->Bind                  (wxEVT_COMMAND_BUTTON_CLICKED,   boost::bind (&AudioPanel::show_clicked, this));
  94         _gain->Bind                  (wxEVT_COMMAND_SPINCTRL_UPDATED, boost::bind (&AudioPanel::gain_changed, this));
  95         _gain_calculate_button->Bind (wxEVT_COMMAND_BUTTON_CLICKED,   boost::bind (&AudioPanel::gain_calculate_button_clicked, this));
  96
  97         _mapping->Changed.connect (boost::bind (&AudioPanel::mapping_changed, this, _1));
  98 }
  99
 100
 101 void
 102 AudioPanel::film_changed (Film::Property property)
 103 {
 104         switch (property) {
 105         case Film::AUDIO_CHANNELS:
 106                 _mapping->set_channels (_editor->film()->audio_channels ());
 107                 _sizer->Layout ();
 108                 break;
 109         default:
 110                 break;
 111         }
 112 }
 113
 114 void
 115 AudioPanel::film_content_changed (shared_ptr<Content> c, int property)
 116 {
 117         shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> (c);
 118         shared_ptr<FFmpegContent> fc = dynamic_pointer_cast<FFmpegContent> (c);
 119
 120         if (_audio_dialog && _editor->selected_audio_content()) {
 121                 _audio_dialog->set_content (_editor->selected_audio_content ());
 122         }
 123
 124         if (property == AudioContentProperty::AUDIO_GAIN) {
 125                 checked_set (_gain, ac ? ac->audio_gain() : 0);
 126         } else if (property == AudioContentProperty::AUDIO_DELAY) {
 127                 checked_set (_delay, ac ? ac->audio_delay() : 0);
 128         } else if (property == AudioContentProperty::AUDIO_MAPPING) {
 129                 _mapping->set (ac ? ac->audio_mapping () : AudioMapping ());
 130                 _sizer->Layout ();
 131         } else if (property == FFmpegContentProperty::AUDIO_STREAM) {
 132                 setup_stream_description ();
 133         } else if (property == FFmpegContentProperty::AUDIO_STREAMS) {
 134                 _stream->Clear ();
 135                 if (fc) {
 136                         vector<shared_ptr<FFmpegAudioStream> > a = fc->audio_streams ();
 137                         for (vector<shared_ptr<FFmpegAudioStream> >::iterator i = a.begin(); i != a.end(); ++i) {
 138                                 _stream->Append (std_to_wx ((*i)->name), new wxStringClientData (std_to_wx (lexical_cast<string> ((*i)->id))));
 139                         }
 140
 141                         if (fc->audio_stream()) {
 142                                 checked_set (_stream, lexical_cast<string> (fc->audio_stream()->id));
 143                                 setup_stream_description ();
 144                         }
 145                 }
 146         }
 147 }
 148
 149 void
 150 AudioPanel::gain_changed ()
 151 {
 152         shared_ptr<AudioContent> ac = _editor->selected_audio_content ();
 153         if (!ac) {
 154                 return;
 155         }
 156
 157         ac->set_audio_gain (_gain->GetValue ());
 158 }
 159
 160 void
 161 AudioPanel::delay_changed ()
 162 {
 163         shared_ptr<AudioContent> ac = _editor->selected_audio_content ();
 164         if (!ac) {
 165                 return;
 166         }
 167
 168         ac->set_audio_delay (_delay->GetValue ());
 169 }
 170
 171 void
 172 AudioPanel::gain_calculate_button_clicked ()
 173 {
 174         GainCalculatorDialog* d = new GainCalculatorDialog (this);
 175         d->ShowModal ();
 176
 177         if (d->wanted_fader() == 0 || d->actual_fader() == 0) {
 178                 d->Destroy ();
 179                 return;
 180         }
 181
 182         _gain->SetValue (
 183                 Config::instance()->sound_processor()->db_for_fader_change (
 184                         d->wanted_fader (),
 185                         d->actual_fader ()
 186                         )
 187                 );
 188
 189         /* This appears to be necessary, as the change is not signalled,
 190            I think.
 191         */
 192         gain_changed ();
 193
 194         d->Destroy ();
 195 }
 196
 197 void
 198 AudioPanel::show_clicked ()
 199 {
 200         if (_audio_dialog) {
 201                 _audio_dialog->Destroy ();
 202                 _audio_dialog = 0;
 203         }
 204
 205         shared_ptr<Content> c = _editor->selected_content ();
 206         if (!c) {
 207                 return;
 208         }
 209
 210         shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> (c);
 211         if (!ac) {
 212                 return;
 213         }
 214
 215         _audio_dialog = new AudioDialog (this);
 216         _audio_dialog->Show ();
 217         _audio_dialog->set_content (ac);
 218 }
 219
 220 void
 221 AudioPanel::stream_changed ()
 222 {
 223         shared_ptr<Content> c = _editor->selected_content ();
 224         if (!c) {
 225                 return;
 226         }
 227
 228         shared_ptr<FFmpegContent> fc = dynamic_pointer_cast<FFmpegContent> (c);
 229         if (!fc) {
 230                 return;
 231         }
 232
 233         if (_stream->GetSelection() == -1) {
 234                 return;
 235         }
 236
 237         vector<shared_ptr<FFmpegAudioStream> > a = fc->audio_streams ();
 238         vector<shared_ptr<FFmpegAudioStream> >::iterator i = a.begin ();
 239         string const s = string_client_data (_stream->GetClientObject (_stream->GetSelection ()));
 240         while (i != a.end() && lexical_cast<string> ((*i)->id) != s) {
 241                 ++i;
 242         }
 243
 244         if (i != a.end ()) {
 245                 fc->set_audio_stream (*i);
 246         }
 247
 248         setup_stream_description ();
 249 }
 250
 251 void
 252 AudioPanel::setup_stream_description ()
 253 {
 254         shared_ptr<Content> c = _editor->selected_content ();
 255         if (!c) {
 256                 return;
 257         }
 258
 259         shared_ptr<FFmpegContent> fc = dynamic_pointer_cast<FFmpegContent> (c);
 260         if (!fc) {
 261                 return;
 262         }
 263
 264         if (!fc->audio_stream ()) {
 265                 _description->SetLabel (wxT (""));
 266         } else {
 267                 wxString s;
 268                 if (fc->audio_channels() == 1) {
 269                         s << _("1 channel");
 270                 } else {
 271                         s << fc->audio_channels() << wxT (" ") << _("channels");
 272                 }
 273                 s << wxT (", ") << fc->content_audio_frame_rate() << _("Hz");
 274                 _description->SetLabel (s);
 275         }
 276 }
 277
 278 void
 279 AudioPanel::mapping_changed (AudioMapping m)
 280 {
 281         shared_ptr<AudioContent> c = _editor->selected_audio_content ();
 282         if (!c) {
 283                 return;
 284         }
 285
 286         c->set_audio_mapping (m);
 287 }
 288