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Sourcecode: ardour version File versions

export_dialog.cc

/*
    Copyright (C) 1999-2005 Paul Davis 

    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 <unistd.h>
#include <utility>
#include <sys/stat.h>
#include <fstream>

#include <samplerate.h>
#include <pbd/convert.h>
#include <pbd/xml++.h>

#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/window_title.h>

#include <ardour/export.h>
#include <ardour/sndfile_helpers.h>
#include <ardour/audio_track.h>
#include <ardour/audioregion.h>
#include <ardour/audioengine.h>
#include <ardour/gdither.h>
#include <ardour/utils.h>
#include <ardour/profile.h>

#include "export_dialog.h"
#include "ardour_ui.h"
#include "public_editor.h"
#include "keyboard.h"

#include "i18n.h"

#define FRAME_NAME "BaseFrame"

using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace sigc;
using namespace Gtk;
using namespace Gtkmm2ext;

static const gchar *sample_rates[] = {
      N_("22.05kHz"),
      N_("44.1kHz"),
      N_("48kHz"),
      N_("88.2kHz"),
      N_("96kHz"),
      N_("192kHz"),
      0
};

static const gchar *src_quality[] = {
      N_("best"),
      N_("fastest"),
      N_("linear"),
      N_("better"),
      N_("intermediate"),
      0
};

static const gchar *dither_types[] = {
      N_("None"),
      N_("Rectangular"),
      N_("Shaped Noise"),
      N_("Triangular"),
      0
};

static const gchar* channel_strings[] = {
      N_("stereo"), 
      N_("mono"), 
      0
};

static const gchar* cue_file_types[] = {
      N_("None"), 
      N_("CUE"),
      N_("TOC"),
      0
};

ExportDialog::ExportDialog(PublicEditor& e)
      : ArdourDialog ("export dialog"),
        editor (e),
        format_table (9, 2),
        format_frame (_("Format")),
        cue_file_label (_("CD Marker File Type"), 1.0, 0.5),
        channel_count_label (_("Channels"), 1.0, 0.5),
        header_format_label (_("File Type"), 1.0, 0.5),
        bitdepth_format_label (_("Sample Format"), 1.0, 0.5),
        endian_format_label (_("Sample Endianness"), 1.0, 0.5),
        sample_rate_label (_("Sample Rate"), 1.0, 0.5),
        src_quality_label (_("Conversion Quality"), 1.0, 0.5),
        dither_type_label (_("Dither Type"), 1.0, 0.5),
        cuefile_only_checkbox (_("Export CD Marker File Only")),
        file_browse_button (_("Browse")),
        track_selector_button (_("Specific tracks ..."))
{
      guint32 n;
      guint32 len;
      guint32 maxlen;

      session = 0;
      track_and_master_selection_allowed = true;
      channel_count_selection_allowed = true;
      export_cd_markers_allowed = true;

      WindowTitle title(Glib::get_application_name());
      title += _("Export");
      
      set_title (title.get_string());
      set_wmclass (X_("ardour_export"), "Ardour");
      set_name ("ExportWindow");
      add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
      
      spec.running = false;

      file_entry.set_name ("ExportFileNameEntry");

      master_list = ListStore::create (exp_cols);
      master_selector.set_model (master_list);

      master_selector.set_name ("ExportTrackSelector");
      master_selector.set_size_request (-1, 100);
      master_selector.append_column(_("Output"), exp_cols.output);
      master_selector.append_column_editable(_("Left"), exp_cols.left);
      master_selector.append_column_editable(_("Right"), exp_cols.right);
      master_selector.get_column(0)->set_min_width(100);

      master_selector.get_column(1)->set_min_width(40);
      master_selector.get_column(1)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
      master_selector.get_column(2)->set_min_width(40);
      master_selector.get_column(2)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
      master_selector.get_selection()->set_mode (Gtk::SELECTION_NONE);

      track_list = ListStore::create (exp_cols);
      track_selector.set_model (track_list);

      track_selector.set_name ("ExportTrackSelector");
      track_selector.set_size_request (-1, 130);
      track_selector.append_column(_("Output"), exp_cols.output);
      track_selector.append_column_editable(_("Left"), exp_cols.left);
      track_selector.append_column_editable(_("Right"), exp_cols.right);

      track_selector.get_column(0)->set_min_width(100);
      track_selector.get_column(1)->set_min_width(40);
      track_selector.get_column(1)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
      track_selector.get_column(2)->set_min_width(40);
      track_selector.get_column(2)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
      track_selector.get_selection()->set_mode (Gtk::SELECTION_NONE);

      progress_bar.set_name ("ExportProgress");

      format_frame.add (format_table);
      format_frame.set_name (FRAME_NAME);

      track_scroll.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
      master_scroll.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);

      get_vbox()->pack_start (file_frame, false, false);

      hpacker.set_spacing (5);
      hpacker.set_border_width (5);
      hpacker.pack_start (format_frame, false, false);

      master_scroll.add (master_selector);
      track_scroll.add (track_selector);

      master_scroll.set_size_request (220, 100);
      track_scroll.set_size_request (220, 100);
            
      /* we may hide some of these later */
      track_vpacker.pack_start (master_scroll);
      track_vpacker.pack_start (track_scroll);
      track_vpacker.pack_start (track_selector_button, Gtk::PACK_EXPAND_PADDING);

      hpacker.pack_start (track_vpacker);

      get_vbox()->pack_start (hpacker);
      
      track_selector_button.set_name ("EditorGTKButton");
      track_selector_button.signal_clicked().connect (mem_fun(*this, &ExportDialog::track_selector_button_click));

      get_vbox()->pack_start (progress_bar, false, false);

      Gtkmm2ext::set_size_request_to_display_given_text (file_entry, X_("Kg/quite/a/reasonable/size/for/files/i/think"), 5, 8);

      file_hbox.set_spacing (5);
      file_hbox.set_border_width (5);
      file_hbox.pack_start (file_entry, true, true);
      file_hbox.pack_start (file_browse_button, false, false);

      file_frame.add (file_hbox);
      file_frame.set_border_width (5);
      file_frame.set_name (FRAME_NAME);

      /* pop_strings needs to be created on the stack because set_popdown_strings()
         takes a reference. 
      */

      vector<string> pop_strings = I18N (sample_rates);
      Gtkmm2ext::set_popdown_strings (sample_rate_combo, pop_strings);
      sample_rate_combo.set_active_text (pop_strings.front());
      pop_strings = I18N (src_quality);
      Gtkmm2ext::set_popdown_strings (src_quality_combo, pop_strings);
      src_quality_combo.set_active_text (pop_strings.front());
      pop_strings = I18N (dither_types);
      Gtkmm2ext::set_popdown_strings (dither_type_combo, pop_strings);
      dither_type_combo.set_active_text (pop_strings.front());
      pop_strings = I18N (channel_strings);
      Gtkmm2ext::set_popdown_strings (channel_count_combo, pop_strings);
      channel_count_combo.set_active_text (pop_strings.front());
      pop_strings = I18N ((const char **) sndfile_header_formats_strings);
      Gtkmm2ext::set_popdown_strings (header_format_combo, pop_strings);
      header_format_combo.set_active_text (pop_strings.front());
      pop_strings = I18N ((const char **) sndfile_bitdepth_formats_strings);
      Gtkmm2ext::set_popdown_strings (bitdepth_format_combo, pop_strings);
      bitdepth_format_combo.set_active_text (pop_strings.front());
      pop_strings = I18N ((const char **) sndfile_endian_formats_strings);
      Gtkmm2ext::set_popdown_strings (endian_format_combo, pop_strings);
      endian_format_combo.set_active_text (pop_strings.front());
      pop_strings = I18N (cue_file_types);
      Gtkmm2ext::set_popdown_strings (cue_file_combo, pop_strings);
      cue_file_combo.set_active_text (pop_strings.front());

      /* this will re-sensitized as soon as a non RIFF/WAV
         header format is chosen.
      */

      endian_format_combo.set_sensitive (false);

      /* determine longest strings at runtime */

      maxlen = 0;
      const char *longest = X_("gl"); /* translators: one ascender, one descender */
      string longest_str;

      for (n = 0; n < SNDFILE_HEADER_FORMATS; ++n) {
            if ((len = strlen (sndfile_header_formats_strings[n])) > maxlen) {
                  maxlen = len;
                  longest = sndfile_header_formats_strings[n];
            }
      }

      for (n = 0; n < SNDFILE_BITDEPTH_FORMATS; ++n) {
            if ((len = strlen (sndfile_bitdepth_formats_strings[n])) > maxlen) {
                  maxlen = len;
                  longest = sndfile_bitdepth_formats_strings[n];
            }
      }

      for (n = 0; n < SNDFILE_ENDIAN_FORMATS; ++n) {
            if ((len = strlen (sndfile_endian_formats_strings[n])) > maxlen) {
                  maxlen = len;
                  longest = sndfile_endian_formats_strings[n];
            }
      }

      longest_str = longest;

      /* force ascender + descender */

      longest_str[0] = 'g';
      longest_str[1] = 'l';

      //Gtkmm2ext::set_size_request_to_display_given_text (header_format_combo, longest_str.c_str(), 5+FUDGE, 5);

      // TRANSLATORS: "slereg" is "stereo" with ascender and descender substituted
      //Gtkmm2ext::set_size_request_to_display_given_text (channel_count_combo, _("slereg"), 5+FUDGE, 5);

/*    header_format_combo.set_focus_on_click (true);
      bitdepth_format_combo.set_focus_on_click (true);
      endian_format_combo.set_focus_on_click (true);
      channel_count_combo.set_focus_on_click (true);
      src_quality_combo.set_focus_on_click (true);
      dither_type_combo.set_focus_on_click (true);
      sample_rate_combo.set_focus_on_click (true);
      cue_file_combo.set_focus_on_click (true);
*/
      dither_type_label.set_name ("ExportFormatLabel");
      sample_rate_label.set_name ("ExportFormatLabel");
      src_quality_label.set_name ("ExportFormatLabel");
      channel_count_label.set_name ("ExportFormatLabel");
      header_format_label.set_name ("ExportFormatLabel");
      bitdepth_format_label.set_name ("ExportFormatLabel");
      endian_format_label.set_name ("ExportFormatLabel");
      cue_file_label.set_name ("ExportFormatLabel");

      header_format_combo.set_name ("ExportFormatDisplay");
      bitdepth_format_combo.set_name ("ExportFormatDisplay");
      endian_format_combo.set_name ("ExportFormatDisplay");
      channel_count_combo.set_name ("ExportFormatDisplay");
      dither_type_combo.set_name ("ExportFormatDisplay");
      src_quality_combo.set_name ("ExportFormatDisplay");
      sample_rate_combo.set_name ("ExportFormatDisplay");
      cue_file_combo.set_name ("ExportFormatDisplay");

      cuefile_only_checkbox.set_name ("ExportCheckbox");

      format_table.set_homogeneous (false);
      format_table.set_border_width (5);
      format_table.set_col_spacings (5);
      format_table.set_row_spacings (5);

      int row = 0;

      format_table.attach (channel_count_label, 0, 1, row, row+1);
      format_table.attach (channel_count_combo, 1, 2, row, row+1);

      row++;
      
      format_table.attach (header_format_label, 0, 1, row, row+1);
      format_table.attach (header_format_combo, 1, 2, row, row+1);

      row++;

      format_table.attach (bitdepth_format_label, 0, 1, row, row+1);
      format_table.attach (bitdepth_format_combo, 1, 2, row, row+1);

      row++;

      if (!Profile->get_sae()) {
            format_table.attach (endian_format_label, 0, 1, row, row+1);
            format_table.attach (endian_format_combo, 1, 2, row, row+1);
            row++;
      }

      format_table.attach (sample_rate_label, 0, 1, row, row+1);
      format_table.attach (sample_rate_combo, 1, 2, row, row+1);

      row++;

      if (!Profile->get_sae()) {
            format_table.attach (src_quality_label, 0, 1, row, row+1);
            format_table.attach (src_quality_combo, 1, 2, row, row+1);
            row++;
      }

      format_table.attach (dither_type_label, 0, 1, row, row+1);
      format_table.attach (dither_type_combo, 1, 2, row, row+1);

      row++;

      if (!Profile->get_sae()) {
            format_table.attach (cue_file_label, 0, 1, row, row+1);
            format_table.attach (cue_file_combo, 1, 2, row, row+1);
            row++;
      
            format_table.attach (cuefile_only_checkbox, 0, 2, row, row+1);
      }

      file_entry.set_name ("ExportFileDisplay");

      signal_delete_event().connect (mem_fun(*this, &ExportDialog::window_closed));

      cancel_button = add_button (Stock::CANCEL, RESPONSE_CANCEL);
      cancel_button->signal_clicked().connect (mem_fun(*this, &ExportDialog::end_dialog));
      ok_button = add_button (_("Export"), RESPONSE_ACCEPT);
      ok_button->signal_clicked().connect (mem_fun(*this, &ExportDialog::do_export));
      
      file_browse_button.set_name ("EditorGTKButton");
      file_browse_button.signal_clicked().connect (mem_fun(*this, &ExportDialog::browse));

      channel_count_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::channels_chosen));
      bitdepth_format_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::bitdepth_chosen));
      header_format_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::header_chosen));
      sample_rate_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::sample_rate_chosen));
      cue_file_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::cue_file_type_chosen));
}

ExportDialog::~ExportDialog()
{
}

void
ExportDialog::do_not_allow_track_and_master_selection()
{
      track_and_master_selection_allowed = false;
      track_vpacker.set_no_show_all();
}

void
ExportDialog::do_not_allow_channel_count_selection()
{
      channel_count_selection_allowed = false;
      channel_count_combo.set_no_show_all();
      channel_count_label.set_no_show_all();
}

void
ExportDialog::do_not_allow_export_cd_markers()
{
      export_cd_markers_allowed = false;
      cue_file_label.set_no_show_all();
      cue_file_combo.set_no_show_all();
      cuefile_only_checkbox.set_no_show_all();
}

void
ExportDialog::connect_to_session (Session *s)
{
      session = s;
      session->GoingAway.connect (mem_fun(*this, &Window::hide_all));

      switch (session->frame_rate()) {
      case 22050:
            sample_rate_combo.set_active_text (_("22.05kHz"));
            break;
      case 44100:
            sample_rate_combo.set_active_text (_("44.1kHz"));
            break;
      case 48000:
            sample_rate_combo.set_active_text (_("48kHz"));
            break;
      case 88200:
            sample_rate_combo.set_active_text (_("88.2kHz"));
            break;
      case 96000:
            sample_rate_combo.set_active_text (_("96kHz"));
            break;
      case 192000:
            sample_rate_combo.set_active_text (_("192kHz"));
            break;
      default:
            sample_rate_combo.set_active_text (_("44.1kHz"));
            break;
      }

      src_quality_combo.set_sensitive (false);

      set_state();
}

void
ExportDialog::set_state()
{
      XMLNode* node = session->instant_xml(X_("ExportDialog"), session->path());
      XMLProperty* prop;

      if (node) {

            if ((prop = node->property (X_("sample_rate"))) != 0) {
                  sample_rate_combo.set_active_text(prop->value());
            }
            if ((prop = node->property (X_("src_quality"))) != 0) {
                  src_quality_combo.set_active_text(prop->value());
            }
            if ((prop = node->property (X_("dither_type"))) != 0) {
                  dither_type_combo.set_active_text(prop->value());
            }
            if ((prop = node->property (X_("channel_count"))) != 0) {
                  channel_count_combo.set_active_text(prop->value());
            }
            if ((prop = node->property (X_("header_format"))) != 0) {
                  header_format_combo.set_active_text(prop->value());
            }
            if ((prop = node->property (X_("bitdepth_format"))) != 0) {
                  bitdepth_format_combo.set_active_text(prop->value());
            }
            if ((prop = node->property (X_("endian_format"))) != 0) {
                  endian_format_combo.set_active_text(prop->value());
            }
            if ((prop = node->property (X_("filename"))) != 0) {
                  file_entry.set_text(prop->value());
            }
            if ((prop = node->property (X_("cue_file_type"))) != 0) {
                    cue_file_combo.set_active_text(prop->value());
            }
      }

      header_chosen ();
      bitdepth_chosen();
      channels_chosen();
      sample_rate_chosen();

      if (session->master_out()) {
            track_scroll.hide ();
      } else {
            master_scroll.hide ();
            track_selector_button.hide ();
      }

      if (!node) {
            return;
      }

      if (session->master_out()) {
            XMLNode* master = find_named_node(*node, (X_("Master")));
            int nchns;

            if (!master) {
                  
                  /* default is to use all */
                  if (channel_count_combo.get_active_text() == _("mono")) {
                        nchns = 1;
                  } else {
                        nchns = 2;
                  }

                  TreeModel::Children rows = master_selector.get_model()->children();
                  for (uint32_t r = 0; r < session->master_out()->n_outputs(); ++r) {
                        if (nchns == 2) {
                              if (r % 2) {
                                    rows[r][exp_cols.right] = true;
                              } else {
                                    rows[r][exp_cols.left] = true;
                              }
                        } else {
                              rows[r][exp_cols.left] = true;
                        }
                  }

            } else {
                  /* XXX use XML state */
            }
      }

      XMLNode* tracks = find_named_node(*node, (X_("Tracks")));
      if (!tracks) {
            return;
      }
      
      XMLNodeList track_list = tracks->children(X_("Track"));
      TreeModel::Children rows = track_selector.get_model()->children();
      TreeModel::Children::iterator ri = rows.begin();
      TreeModel::Row row;

      for (XMLNodeIterator it = track_list.begin(); it != track_list.end(); ++it, ++ri) {
            if (ri == rows.end()){
                  break;
            }

            XMLNode* track = *it;
            row = *ri;

            if ((prop = track->property(X_("channel1"))) != 0) {
                  if (prop->value() == X_("on")) {
                        row[exp_cols.left] = true;
                  } else {
                        row[exp_cols.left] = false;
                  }
            }

            if ((prop = track->property(X_("channel2"))) != 0) {
                  if (prop->value() == X_("on")) {
                        row[exp_cols.right] = true;
                  } else {
                        row[exp_cols.right] = false;
                  }
            }
      }
}

void
ExportDialog::save_state()
{
      if (!session) {
            return;
      }

      XMLNode* node = new XMLNode(X_("ExportDialog"));

      node->add_property(X_("sample_rate"), sample_rate_combo.get_active_text());
      node->add_property(X_("src_quality"), src_quality_combo.get_active_text());
      node->add_property(X_("dither_type"), dither_type_combo.get_active_text());
      node->add_property(X_("channel_count"), channel_count_combo.get_active_text());
      node->add_property(X_("header_format"), header_format_combo.get_active_text());
      node->add_property(X_("bitdepth_format"), bitdepth_format_combo.get_active_text());
      node->add_property(X_("endian_format"), endian_format_combo.get_active_text());
      node->add_property(X_("filename"), file_entry.get_text());
      node->add_property(X_("cue_file_type"), cue_file_combo.get_active_text());

      XMLNode* tracks = new XMLNode(X_("Tracks"));

      TreeModel::Children rows = track_selector.get_model()->children();
      TreeModel::Row row;
      for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri) {
            XMLNode* track = new XMLNode(X_("Track"));

            row = *ri;
            track->add_property(X_("channel1"), row[exp_cols.left] ? X_("on") : X_("off"));
            track->add_property(X_("channel2"), row[exp_cols.right] ? X_("on") : X_("off"));

            tracks->add_child_nocopy(*track);
      }
      node->add_child_nocopy(*tracks);
      
      session->add_instant_xml(*node, session->path());
}

void
ExportDialog::set_range (nframes_t start, nframes_t end)
{
      spec.start_frame = start;
      spec.end_frame = end;
}

gint
ExportDialog::progress_timeout ()
{
      progress_bar.set_fraction (spec.progress);
      return TRUE;
}

void
frames_to_cd_frames_string (char* buf, nframes_t when, nframes_t fr)
{

  long unsigned int remainder;
  int mins, secs, frames;

      mins = when / (60 * fr);
      remainder = when - (mins * 60 * fr);
      secs = remainder / fr;
      remainder -= secs * fr;
      frames = remainder / (fr / 75);
      sprintf (buf, " %02d:%02d:%02d", mins, secs, frames);

}

struct LocationSortByStart {
    bool operator() (Location *a, Location *b) {
          return a->start() < b->start();
    }
};

void
ExportDialog::export_toc_file (Locations::LocationList& locations, const string& path)
{
      if(!export_cd_markers_allowed){
            return;
      }
      
      string filepath = path + ".toc";
      ofstream out (filepath.c_str());
      long unsigned int last_end_time = spec.start_frame, last_start_time = spec.start_frame;
      gchar buf[18];

      if (!out) {
            error << string_compose(_("Editor: cannot open \"%1\" as export file for CD toc file"), filepath) << endmsg;
            return;
      }
      out << "CD_DA" << endl;
      out << "CD_TEXT {" << endl << "  LANGUAGE_MAP {" << endl << "    0 : EN" << endl << "  }" << endl;
      out << "  LANGUAGE 0 {" << endl << "    TITLE \"" << session->name() << "\"" << endl << "  }" << endl << "}" << endl;

      Locations::LocationList::iterator i;
      Locations::LocationList temp;

      for (i = locations.begin(); i != locations.end(); ++i) {
            if ((*i)->start() >= spec.start_frame && (*i)->end() <= spec.end_frame && (*i)->is_cd_marker() && !(*i)->is_end()) {
                  temp.push_back (*i);
            }
      }

      if (temp.size() > 0) {
            LocationSortByStart cmp;
            temp.sort (cmp);
            Location * curr_range = 0;
            Locations::LocationList::iterator nexti;

            for (i = temp.begin(); i != temp.end(); ++i) {

                  if ((*i)->start() >= last_end_time)
                  {
                        /* this is a track, defined by a cd range marker or a cd location marker outside of a cd range */
                        out << endl << "TRACK AUDIO" << endl;
                        
                        if ((*i)->cd_info.find("scms") != (*i)->cd_info.end())  {
                              out << "NO ";
                        }
                        out << "COPY" << endl;
                        
                        if ((*i)->cd_info.find("preemph") != (*i)->cd_info.end())  {
                              out << "PRE_EMPHASIS" << endl;
                        } else {
                              out << "NO PRE_EMPHASIS" << endl;
                        }
                        
                        if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end())  {
                              out << "ISRC \"" << (*i)->cd_info["isrc"] << "\"" << endl;
                        }
                        
                        out << "CD_TEXT {" << endl << "  LANGUAGE 0 {" << endl << "     TITLE \"" << (*i)->name() << "\"" << endl;
                        if ((*i)->cd_info.find("performer") != (*i)->cd_info.end()) {
                              out << "     PERFORMER \"" << (*i)->cd_info["performer"]  << "\"" << endl;
                        }
                        if ((*i)->cd_info.find("string_composer") != (*i)->cd_info.end()) {
                              out  << "     COMPOSER \"" << (*i)->cd_info["string_composer"] << "\"" << endl;
                        }
                        
                        if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end()) {                  
                              out  << "     ISRC \"";
                              out << (*i)->cd_info["isrc"].substr(0,2) << "-";
                              out << (*i)->cd_info["isrc"].substr(2,3) << "-";
                              out << (*i)->cd_info["isrc"].substr(5,2) << "-";
                              out << (*i)->cd_info["isrc"].substr(7,5) << "\"" << endl;
                        }
                        
                        out << "  }" << endl << "}" << endl;
                        
                        frames_to_cd_frames_string (buf, last_end_time - spec.start_frame, session->frame_rate());
                        out << "FILE \"" << path << "\" " << buf;
                        
                        if ((*i)->is_mark()) {
                              // a mark track location needs to look ahead to the next marker's start to determine length
                              nexti = i;
                              ++nexti;
                              if (nexti != temp.end()) {
                                    frames_to_cd_frames_string (buf, (*nexti)->start() - last_end_time, session->frame_rate());
                                    out << buf << endl;
                                    
                                    frames_to_cd_frames_string (buf, (*i)->start() - last_end_time, session->frame_rate());
                                    out << "START" << buf << endl;
                                    
                                    last_start_time = (*i)->start();
                                    last_end_time = (*nexti)->start();
                              }
                              else {
                                    // this was the last marker, use session end
                                    frames_to_cd_frames_string (buf, spec.end_frame - last_end_time, session->frame_rate());
                                    out << buf << endl;
                                    
                                    frames_to_cd_frames_string (buf, (*i)->start() - last_end_time, session->frame_rate());
                                    out << "START" << buf << endl;
                                    
                                    last_start_time = (*i)->start();
                                    last_end_time = spec.end_frame;
                              }

                              curr_range = 0;
                        }
                        else {
                              // range
                              frames_to_cd_frames_string (buf, (*i)->end() - last_end_time, session->frame_rate());
                              out << buf << endl;
                              
                              frames_to_cd_frames_string (buf, (*i)->start() - last_end_time, session->frame_rate());
                              out << "START" << buf << endl;
                              
                              last_start_time = (*i)->start();
                              last_end_time = (*i)->end();

                              curr_range = (*i);
                        }
                        
                  }
                  else if ((*i)->is_mark()) 
                  {
                        /* this is an index within a track */
                        
                        frames_to_cd_frames_string (buf, (*i)->start() - last_start_time, session->frame_rate());
                        out << "INDEX" << buf << endl;
                  }
            }
      }
      
}

void
ExportDialog::export_cue_file (Locations::LocationList& locations, const string& path)
{
      if(!export_cd_markers_allowed){
            return;
      }
      
    string filepath = path + ".cue";
      ofstream out (filepath.c_str());
      gchar buf[18];
      long unsigned int last_track_end = spec.start_frame;
      int numtracks = 0, tracknum = 0, indexnum = 0;

      if (!out) {
            error << string_compose(_("Editor: cannot open \"%1\" as export file for CD cue file"), filepath) << endmsg;
            return;
      }

      Locations::LocationList::iterator i;
      Locations::LocationList temp;

      for (i = locations.begin(); i != locations.end(); ++i) {
            if ((*i)->start() >= spec.start_frame && (*i)->end() <= spec.end_frame && (*i)->is_cd_marker() && !(*i)->is_end()) {
                  temp.push_back (*i);
                  if (!(*i)->is_mark()) {
                        numtracks++;
                  }
            }
      }
      
      out << "REM Cue file generated by Ardour" << endl;
      out << "TITLE \"" << session->name() << "\"" << endl;

      if ((header_format_combo.get_active_text() == N_("WAV"))) {
              out << "FILE " << path  << " WAVE" << endl;
      } else {
              out << "FILE " << path  << ' ' << (header_format_combo.get_active_text()) << endl;
      }

      if (false && numtracks == 0) {
                /* the user has supplied no track markers.
                   the entire export is treated as one track. 
                */

              numtracks++;
              tracknum++;
              indexnum = 0;
              out << endl << "TRACK " << tracknum << " AUDIO" << endl;
              out << "FLAGS " ;
              
              out << "DCP " << endl;               
              
              /* use the session name*/
              
              if (session->name() != "") {
                out << "TITLE \"" << session->name() << "\"" << endl;
              }         
              
              /* no pregap in this case */

              out << "INDEX 00 00:00:00" << endl;
              indexnum++;
              out << "INDEX 01 00:00:00" << endl;
              indexnum++;
              last_track_end = spec.end_frame;
      }

      if (temp.size()) {
            LocationSortByStart cmp;
            temp.sort (cmp);
            Location * curr_range = 0;
            Locations::LocationList::iterator nexti;

            for ( i = temp.begin(); i != temp.end(); ++i) {

                  if ((*i)->start() >= last_track_end)
                  {
                        /* this is a track and it doesn't start inside another one*/
                        
                        tracknum++;
                        indexnum = 0;
                        out << endl << "TRACK " << tracknum << " AUDIO" << endl;
                        out << "FLAGS " ;
                        
                        if ((*i)->cd_info.find("scms") != (*i)->cd_info.end())  {
                              out << "SCMS ";
                        } else {
                              out << "DCP ";
                        }
                        
                        if ((*i)->cd_info.find("preemph") != (*i)->cd_info.end())  {
                              out << "PRE";
                        }
                        out << endl;
                        
                        if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end())  {
                              out << "ISRC " << (*i)->cd_info["isrc"] << endl;
                              
                        }
                        if ((*i)->name() != "") {
                              out << "TITLE \"" << (*i)->name() << "\"" << endl;
                        }           
                        
                        if ((*i)->cd_info.find("performer") != (*i)->cd_info.end()) {
                              out << "PERFORMER \"" <<  (*i)->cd_info["performer"] << "\"" << endl;
                        }
                        
                        if ((*i)->cd_info.find("string_composer") != (*i)->cd_info.end()) {
                              out << "SONGWRITER \"" << (*i)->cd_info["string_composer"]  << "\"" << endl;
                        }
                        snprintf (buf, sizeof(buf), "INDEX %02d", indexnum);
                        out << buf;
                        frames_to_cd_frames_string (buf, last_track_end - spec.start_frame, session->frame_rate());
                        out << buf << endl;
                        indexnum++;

                        if ((*i)->is_mark()) {
                              // need to find the next start to define the end
                              nexti = i;
                              ++nexti;
                              if (nexti != temp.end()) {
                                    last_track_end = (*nexti)->start();
                              }
                              else {
                                    last_track_end = spec.end_frame;
                              }
                              curr_range = 0;
                        }
                        else {
                              last_track_end = (*i)->end();
                              curr_range = (*i);
                        }
                  } 
      
                  if ((tracknum > 0) && ((*i)->start() < last_track_end)) {
                        /*this is an index and it lies within a track*/
                        snprintf (buf, sizeof(buf), "INDEX %02d", indexnum);
                        out << buf;
                        frames_to_cd_frames_string (buf,(*i)->start() - spec.start_frame, session->frame_rate());
                        out << buf << endl;
                        indexnum++;
                  }
            }
      }
      
}
      
void
ExportDialog::do_export_cd_markers (const string& path,const string& cuefile_type)
{
      if (cuefile_type == _("TOC")) {
            session->locations()->apply (*this, &ExportDialog::export_toc_file, path);    
      } else {
            session->locations()->apply (*this, &ExportDialog::export_cue_file, path);
      }
}


void
ExportDialog::do_export ()
{
      string filepath = file_entry.get_text();

      if (!ARDOUR_UI::instance()->the_engine().connected()) {
            MessageDialog msg (*this, 
                           _("Not connected to audioengine"),
                           true,
                           MESSAGE_ERROR,
                           BUTTONS_OK);
            msg.set_secondary_text (_("Ardour cannot export audio when disconnected"));
            msg.present ();
            msg.run ();
            return;
      }
            
      if(!is_filepath_valid(filepath)){
            return;
      }

      if (!Profile->get_sae() && export_cd_markers_allowed) {
            if (cue_file_combo.get_active_text () != _("None")) {
                  do_export_cd_markers (file_entry.get_text(), cue_file_combo.get_active_text ());
            }

            if (cuefile_only_checkbox.get_active()) {
                  end_dialog ();
                  return;
            }
      }

      ok_button->set_sensitive(false);
      save_state();

      set_modal (true);
      
      // read user input into spec
      initSpec(filepath);
      
      progress_connection = Glib::signal_timeout().connect (mem_fun(*this, &ExportDialog::progress_timeout), 100);
      cancel_label.set_text (_("Stop Export"));

      export_audio_data();
      
      progress_connection.disconnect ();
      end_dialog ();
}
      
void
ExportDialog::end_dialog ()
{
      if (spec.running) {
            spec.stop = true;

            while (spec.running) {
                  if (gtk_events_pending()) {
                        gtk_main_iteration ();
                  } else {
                        usleep (10000);
                  }
            }
      }

      session->finalize_audio_export ();

      hide_all ();

      set_modal (false);
      ok_button->set_sensitive(true);
}

void
ExportDialog::start_export ()
{
      if (session == 0) {
            return;
      }

      /* If the filename hasn't been set before, use the
         current session's export directory as a default
         location for the export.  
      */
      
      if (file_entry.get_text().length() == 0) {
            string dir = session->export_dir();
            string::size_type last_slash;
            
            if ((last_slash = dir.find_last_of ('/')) != string::npos && last_slash != 0) {
                  dir = dir.substr (0, last_slash+1);
            }

            if (!wants_dir()) {
                  dir = dir + "export.wav";
            }
            
            file_entry.set_text (dir);
      }
      
      progress_bar.set_fraction (0);
      cancel_label.set_text (_("Cancel"));

      show_all ();

      if (session->master_out()) {
            track_scroll.hide ();
      } else {
            master_scroll.hide ();
            track_selector_button.hide ();
      }
}

void
ExportDialog::header_chosen ()
{
      if (sndfile_header_format_from_string (header_format_combo.get_active_text ()) == SF_FORMAT_WAV) {
            endian_format_combo.set_sensitive (false);
      } else {
            endian_format_combo.set_sensitive (true);
      }
}

void
ExportDialog::bitdepth_chosen ()
{
      int format = sndfile_bitdepth_format_from_string (bitdepth_format_combo.get_active_text ());    
      switch (format) {
      case SF_FORMAT_PCM_24:
      case SF_FORMAT_PCM_32:
      case SF_FORMAT_FLOAT:
            dither_type_combo.set_sensitive (false);
            break;

      default:
            dither_type_combo.set_sensitive (true);
            break;
      }
}

void
ExportDialog::cue_file_type_chosen ()
{
      if (cue_file_combo.get_active_text () != "None") {
            cuefile_only_checkbox.set_sensitive (true);
      } else {
            cuefile_only_checkbox.set_active (false);
            cuefile_only_checkbox.set_sensitive (false);
      }
}

void
ExportDialog::sample_rate_chosen ()
{
      string sr_str = sample_rate_combo.get_active_text();
      nframes_t rate;

      if (sr_str == N_("22.05kHz")) {
            rate = 22050;
      } else if (sr_str == _("44.1kHz")) {
            rate = 44100;
      } else if (sr_str == _("48kHz")) {
            rate = 48000;
      } else if (sr_str == _("88.2kHz")) {
            rate = 88200;
      } else if (sr_str == _("96kHz")) {
            rate = 96000;
      } else if (sr_str == _("192kHz")) {
            rate = 192000;
      } else {
            rate = session->frame_rate();
      }
            
      if (rate != session->frame_rate()) {
            src_quality_combo.set_sensitive (true);
      } else {
            src_quality_combo.set_sensitive (false);
      }
}

void
ExportDialog::channels_chosen ()
{
      bool mono;

      mono = (channel_count_combo.get_active_text() == _("mono"));

      if (mono) {
            track_selector.get_column(2)->set_visible(false);
            track_selector.get_column(1)->set_title(_("Export"));

            if (session->master_out()) {
                  master_selector.get_column(2)->set_visible(false);
                  master_selector.get_column(1)->set_title(_("Export"));
            }

      } else {
            track_selector.get_column(2)->set_visible(true);
            track_selector.get_column(1)->set_title(_("Left"));

            if (session->master_out()) {
                  master_selector.get_column(2)->set_visible(true);
                  master_selector.get_column(1)->set_title(_("Left"));
            }
      }

      fill_lists();
}

void
ExportDialog::fill_lists ()
{
      track_list->clear();
      master_list->clear();
      
      boost::shared_ptr<Session::RouteList> routes = session->get_routes ();

      for (Session::RouteList::iterator ri = routes->begin(); ri != routes->end(); ++ri) {
            
            boost::shared_ptr<Route> route = (*ri);
            
            if (route->hidden()) {
                  continue;
            }

            for (uint32_t i=0; i < route->n_outputs(); ++i) {
                  string name;
                  if (route->n_outputs() == 1) {
                        name = route->name();
                  } else {
                        name = string_compose("%1: out-%2", route->name(), i+1);
                  }

                  if (route == session->master_out()) {
                        TreeModel::iterator iter = master_list->append();
                        TreeModel::Row row = *iter;
                        row[exp_cols.output] = name;
                        row[exp_cols.left] = false;
                        row[exp_cols.right] = false;
                        row[exp_cols.port] = route->output (i);
                  } else {
                        TreeModel::iterator iter = track_list->append();
                        TreeModel::Row row = *iter;
                        row[exp_cols.output] = name;
                        row[exp_cols.left] = false;
                        row[exp_cols.right] = false;
                        row[exp_cols.port] = route->output (i);
                  }
            }
      }
}


bool
ExportDialog::is_filepath_valid(string &filepath)
{
      // sanity check file name first

      struct stat statbuf;
  
      if (filepath.empty()) {
            string txt = _("Please enter a valid filename.");
            MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
            msg.run();
            return false;
      }
      
      // check if file exists already and warn

      if (stat (filepath.c_str(), &statbuf) == 0) {
            if (S_ISDIR (statbuf.st_mode)) {
                  string txt = _("Please specify a complete filename for the audio file.");
                  MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
                  msg.run();
                  return false;
            }
            else {
                  string txt = _("File already exists, do you want to overwrite it?");
                  MessageDialog msg (*this, txt, false, MESSAGE_QUESTION, BUTTONS_YES_NO, true);
                  if ((ResponseType) msg.run() == Gtk::RESPONSE_NO) {
                        return false;
                  }
            }
      }
      
      // directory needs to exist and be writable

      string dirpath = Glib::path_get_dirname (filepath);
      if (::access (dirpath.c_str(), W_OK) != 0) {
            string txt = _("Cannot write file in: ") + dirpath;
            MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
            msg.run();
            return false;
      }
      
      return true;
}

void
ExportDialog::initSpec(string &filepath)
{
      spec.path = filepath;
      spec.progress = 0;
      spec.running = true;
      spec.stop = false;
      spec.port_map.clear();
      
      if (channel_count_combo.get_active_text() == _("mono")) {
            spec.channels = 1;
      } else {
            spec.channels = 2;
      }

      spec.format = 0;

      spec.format |= sndfile_header_format_from_string (header_format_combo.get_active_text ());

      if (!Profile->get_sae()) {
            if ((spec.format & SF_FORMAT_WAV) == 0) {
                  /* RIFF/WAV specifies endianess */
                  spec.format |= sndfile_endian_format_from_string (endian_format_combo.get_active_text ());
            }
      }

      spec.format |= sndfile_bitdepth_format_from_string (bitdepth_format_combo.get_active_text ());

      string sr_str = sample_rate_combo.get_active_text();
      if (sr_str == N_("22.05kHz")) {
            spec.sample_rate = 22050;
      } else if (sr_str == _("44.1kHz")) {
            spec.sample_rate = 44100;
      } else if (sr_str == _("48kHz")) {
            spec.sample_rate = 48000;
      } else if (sr_str == _("88.2kHz")) {
            spec.sample_rate = 88200;
      } else if (sr_str == _("96kHz")) {
            spec.sample_rate = 96000;
      } else if (sr_str == _("192kHz")) {
            spec.sample_rate = 192000;
      } else {
            spec.sample_rate = session->frame_rate();
      }
      
      if (Profile->get_sae()) {
            spec.src_quality = SRC_SINC_BEST_QUALITY;
      } else {
            string src_str = src_quality_combo.get_active_text();
            if (src_str == _("fastest")) {
                  spec.src_quality = SRC_ZERO_ORDER_HOLD;
            } else if (src_str == _("linear")) {
                  spec.src_quality = SRC_LINEAR;
            } else if (src_str == _("better")) {
                  spec.src_quality = SRC_SINC_FASTEST;
            } else if (src_str == _("intermediate")) {
                  spec.src_quality = SRC_SINC_MEDIUM_QUALITY;
            } else {
                  spec.src_quality = SRC_SINC_BEST_QUALITY;
            }
      }

      string dither_str = dither_type_combo.get_active_text();
      if (dither_str == _("None")) {
            spec.dither_type = GDitherNone;
      } else if (dither_str == _("Rectangular")) {
            spec.dither_type = GDitherRect;
      } else if (dither_str == _("Triangular")) {
            spec.dither_type = GDitherTri;
      } else {
            spec.dither_type = GDitherShaped;
      } 

      write_track_and_master_selection_to_spec();
}


void
ExportDialog::write_track_and_master_selection_to_spec()
{
      if(!track_and_master_selection_allowed){
            return;
      }

      uint32_t chan=0;
      Port *last_port = 0;
            
      TreeModel::Children rows = master_selector.get_model()->children();
      TreeModel::Children::iterator ri;
      TreeModel::Row row;
      for (ri = rows.begin(); ri != rows.end(); ++ri) {
            row = *ri;
            Port* port = row[exp_cols.port];
            
            if (last_port != port) {
                  chan = 0;
            }
            
            if (row[exp_cols.left]) {
                  spec.port_map[0].push_back (std::pair<Port*,uint32_t>(port, chan));
            } 
            
            if (spec.channels == 2) {
                  if (row[exp_cols.right]) {
                        spec.port_map[1].push_back (std::pair<Port*,uint32_t>(port, chan));
                  }
            }
      }
      
      chan = 0;
      rows = track_selector.get_model()->children();

      for (ri = rows.begin(); ri != rows.end(); ++ri) {
            row = *ri;
            
            Port* port = row[exp_cols.port];
            
            if (last_port != port) {
                  chan = 0;
            }
            
            if (row[exp_cols.left]) {
                  spec.port_map[0].push_back (std::pair<Port*,uint32_t>(port, chan));
            } 
            
            if (spec.channels == 2) {
                  if (row[exp_cols.right]) {
                        spec.port_map[1].push_back (std::pair<Port*,uint32_t>(port, chan));
                  }
                  
            }
            
            last_port = port;
            ++chan;
      }
}


gint
ExportDialog::window_closed (GdkEventAny *ignored)
{
      end_dialog ();
      return TRUE;
}

void
ExportDialog::browse ()
{
      FileChooserDialog dialog("Export to file", browse_action());
      dialog.set_transient_for(*this);
      dialog.set_filename (file_entry.get_text());

      dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
      dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
  
      int result = dialog.run();

      if (result == Gtk::RESPONSE_OK) {
            string filename = dialog.get_filename();
      
            if (filename.length()) {
                  file_entry.set_text (filename);
            }
      }
}

void
ExportDialog::track_selector_button_click ()
{
      if (track_scroll.is_visible ()) {
            track_scroll.hide ();
      } else {
            track_scroll.show_all ();
      }
}

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