gtk2_ardour/export_range_markers_dialog.cc

   1 /*
   2     Copyright (C) 2006 Paul Davis
   3     Author: Andre Raue
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18
  19 */
  20
  21 #include <sys/stat.h>
  22
  23 #include <sstream>
  24
  25 #include <ardour/audioengine.h>
  26 #include <ardour/sndfile_helpers.h>
  27
  28 #include "ardour_ui.h"
  29 #include "export_range_markers_dialog.h"
  30
  31 #include "i18n.h"
  32
  33 using namespace Gtk;
  34 using namespace ARDOUR;
  35 using namespace PBD;
  36 using namespace std;
  37
  38 ExportRangeMarkersDialog::ExportRangeMarkersDialog (PublicEditor& editor)
  39         : ExportDialog(editor)
  40 {
  41         do_not_allow_export_cd_markers();
  42
  43         total_duration = 0;
  44         current_range_marker_index = 0;
  45 }
  46
  47
  48 void
  49 ExportRangeMarkersDialog::export_audio_data ()
  50 {
  51         getSession().locations()->apply(*this, &ExportRangeMarkersDialog::process_range_markers_export);
  52 }
  53
  54 void
  55 ExportRangeMarkersDialog::process_range_markers_export(Locations::LocationList& locations)
  56 {
  57         Locations::LocationList::iterator locationIter;
  58         current_range_marker_index = 0;
  59         init_progress_computing(locations);
  60
  61         for (locationIter = locations.begin(); locationIter != locations.end(); ++locationIter) {
  62                 Location *currentLocation = (*locationIter);
  63
  64                 if(currentLocation->is_range_marker()){
  65                         // init filename
  66                         string filepath = get_target_filepath(
  67                                 get_selected_file_name(),
  68                                 currentLocation->name(),
  69                                 sndfile_file_ending_from_string(get_selected_header_format()));
  70
  71                         initSpec(filepath);
  72
  73                         spec.start_frame = currentLocation->start();
  74                         spec.end_frame = currentLocation->end();
  75
  76                         getSession().request_locate(spec.start_frame, false);
  77
  78                         if (getSession().start_audio_export(spec)){
  79                                 // if export fails
  80                                 return;
  81                         }
  82
  83                         // wait until export of this range finished
  84                         gtk_main_iteration();
  85                         while(spec.running){
  86                                 if(gtk_events_pending()){
  87                                         gtk_main_iteration();
  88                                 }else {
  89                                         usleep(10000);
  90                                 }
  91                         }
  92
  93                         current_range_marker_index++;
  94                 }
  95         }
  96
  97         spec.running = false;
  98 }
  99
 100
 101 string
 102 ExportRangeMarkersDialog::get_target_filepath(string path, string filename, string postfix)
 103 {
 104         string target_path = path;
 105         if ((target_path.find_last_of ('/')) != string::npos) {
 106                 target_path += '/';
 107         }
 108
 109         string target_filepath = target_path + filename + postfix;
 110         struct stat statbuf;
 111
 112         for(int counter=1; (stat (target_filepath.c_str(), &statbuf) == 0); counter++){
 113                 // while file exists
 114                 ostringstream scounter;
 115                 scounter.flush();
 116                 scounter << counter;
 117
 118                 target_filepath =
 119                         target_path + filename + "_" + scounter.str() + postfix;
 120         }
 121
 122         return target_filepath;
 123 }
 124
 125
 126 bool
 127 ExportRangeMarkersDialog::is_filepath_valid(string &filepath)
 128 {
 129         // sanity check file name first
 130         struct stat statbuf;
 131
 132         if (filepath.empty()) {
 133                 // warning dialog
 134                 string txt = _("Please enter a valid target directory.");
 135                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 136                 msg.run();
 137                 return false;
 138         }
 139
 140         if ( (stat (filepath.c_str(), &statbuf) != 0) ||
 141                 (!S_ISDIR (statbuf.st_mode)) ) {
 142                         string txt = _("Please select an existing target directory. Files are not allowed!");
 143                         MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 144                         msg.run();
 145                         return false;
 146         }
 147
 148         // directory needs to exist and be writable
 149         string dirpath = Glib::path_get_dirname (filepath);
 150         if (::access (dirpath.c_str(), W_OK) != 0) {
 151                 string txt = _("Cannot write file in: ") + dirpath;
 152                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 153                 msg.run();
 154                 return false;
 155         }
 156
 157         return true;
 158 }
 159
 160
 161 void
 162 ExportRangeMarkersDialog::init_progress_computing(Locations::LocationList& locations)
 163 {
 164         // flush vector
 165         range_markers_durations_aggregated.resize(0);
 166
 167         nframes_t duration_before_current_location = 0;
 168         Locations::LocationList::iterator locationIter;
 169
 170         for (locationIter = locations.begin(); locationIter != locations.end(); ++locationIter) {
 171                 Location *currentLocation = (*locationIter);
 172
 173                 if(currentLocation->is_range_marker()){
 174                         range_markers_durations_aggregated.push_back (duration_before_current_location);
 175
 176                         nframes_t duration = currentLocation->end() - currentLocation->start();
 177
 178                         range_markers_durations.push_back (duration);
 179                         duration_before_current_location += duration;
 180                 }
 181         }
 182
 183         total_duration = duration_before_current_location;
 184 }
 185
 186
 187 gint
 188 ExportRangeMarkersDialog::progress_timeout ()
 189 {
 190         double progress = 0.0;
 191
 192         cerr << "Progress timeout, total = " << total_duration << " index = " << current_range_marker_index
 193              << " current = " << range_markers_durations[current_range_marker_index]
 194              << " agg = " << range_markers_durations_aggregated[current_range_marker_index]
 195              << " prog = " << spec.progress
 196              << endl;
 197
 198         if (current_range_marker_index >= range_markers_durations.size()){
 199                 progress = 1.0;
 200         } else{
 201                 progress = ((double) range_markers_durations_aggregated[current_range_marker_index] +
 202                             (spec.progress * (double) range_markers_durations[current_range_marker_index])) /
 203                         (double) total_duration;
 204         }
 205
 206         set_progress_fraction( progress );
 207         return TRUE;
 208 }