gtk2_ardour/editor_audio_import.cc

   1 /*
   2     Copyright (C) 2000-2006 Paul Davis
   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 <sys/types.h>
  21 #include <sys/stat.h>
  22 #include <sys/time.h>
  23 #include <errno.h>
  24 #include <unistd.h>
  25 #include <algorithm>
  26
  27 #include <sndfile.h>
  28
  29 #include <pbd/pthread_utils.h>
  30 #include <pbd/basename.h>
  31 #include <pbd/shortpath.h>
  32
  33 #include <gtkmm2ext/choice.h>
  34
  35 #include <ardour/session.h>
  36 #include <ardour/audioplaylist.h>
  37 #include <ardour/audioregion.h>
  38 #include <ardour/audio_diskstream.h>
  39 #include <ardour/utils.h>
  40 #include <ardour/audio_track.h>
  41 #include <ardour/audioplaylist.h>
  42 #include <ardour/audiofilesource.h>
  43 #include <ardour/region_factory.h>
  44 #include <ardour/source_factory.h>
  45 #include <ardour/session.h>
  46 #include <pbd/memento_command.h>
  47
  48 #include "ardour_ui.h"
  49 #include "editor.h"
  50 #include "sfdb_ui.h"
  51 #include "editing.h"
  52 #include "audio_time_axis.h"
  53 #include "utils.h"
  54 #include "gui_thread.h"
  55
  56 #include "i18n.h"
  57
  58 using namespace std;
  59 using namespace ARDOUR;
  60 using namespace PBD;
  61 using namespace sigc;
  62 using namespace Gtk;
  63 using namespace Gtkmm2ext;
  64 using namespace Editing;
  65 using Glib::ustring;
  66
  67 /* Functions supporting the incorporation of external (non-captured) audio material into ardour */
  68
  69 void
  70 Editor::add_external_audio_action (ImportMode mode_hint)
  71 {
  72         if (session == 0) {
  73                 MessageDialog msg (_("You can't import or embed an audiofile until you have a session loaded."));
  74                 msg.run ();
  75                 return;
  76         }
  77
  78         if (sfbrowser == 0) {
  79                 sfbrowser = new SoundFileOmega (*this, _("Add existing audio"), session, 0, true, mode_hint);
  80         } else {
  81                 sfbrowser->set_mode (mode_hint);
  82         }
  83
  84         external_audio_dialog ();
  85 }
  86
  87 void
  88 Editor::external_audio_dialog ()
  89 {
  90         vector<Glib::ustring> paths;
  91         uint32_t track_cnt;
  92
  93         if (session == 0) {
  94                 MessageDialog msg (_("You can't import or embed an audiofile until you have a session loaded."));
  95                 msg.run ();
  96                 return;
  97         }
  98
  99         track_cnt = 0;
 100
 101         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
 102                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(*x);
 103
 104                 if (!atv) {
 105                         continue;
 106                 } else if (atv->is_audio_track()) {
 107                         track_cnt++;
 108                 }
 109         }
 110
 111         if (sfbrowser == 0) {
 112                 sfbrowser = new SoundFileOmega (*this, _("Add existing audio"), session, track_cnt, true);
 113         } else {
 114                 sfbrowser->reset (track_cnt);
 115         }
 116
 117         sfbrowser->show_all ();
 118
 119
 120         bool keepRunning;
 121
 122         do {
 123                 keepRunning = false;
 124
 125                 int response = sfbrowser->run ();
 126
 127                 switch (response) {
 128                         case RESPONSE_APPLY:
 129                                 // leave the dialog open
 130                                 break;
 131
 132                         case RESPONSE_OK:
 133                                 sfbrowser->hide ();
 134                                 break;
 135
 136                         default:
 137                                 // cancel from the browser - we are done
 138                                 sfbrowser->hide ();
 139                                 return;
 140                 }
 141
 142                 /* lets do it */
 143
 144                 paths = sfbrowser->get_paths ();
 145
 146                 ImportPosition pos = sfbrowser->get_position ();
 147                 ImportMode mode = sfbrowser->get_mode ();
 148                 ImportDisposition chns = sfbrowser->get_channel_disposition ();
 149                 nframes64_t where;
 150
 151                 switch (pos) {
 152                         case ImportAtEditPoint:
 153                                 where = get_preferred_edit_position ();
 154                                 break;
 155                         case ImportAtTimestamp:
 156                                 where = -1;
 157                                 break;
 158                         case ImportAtPlayhead:
 159                                 where = playhead_cursor->current_frame;
 160                                 break;
 161                         case ImportAtStart:
 162                                 where = session->current_start_frame();
 163                                 break;
 164                 }
 165
 166                 SrcQuality quality = sfbrowser->get_src_quality();
 167
 168
 169                 if (sfbrowser->copy_files_btn.get_active()) {
 170                         do_import (paths, chns, mode, quality, where);
 171                 } else {
 172                         do_embed (paths, chns, mode, where);
 173                 }
 174
 175                 if (response == RESPONSE_APPLY) {
 176                         sfbrowser->clear_selection ();
 177                         keepRunning = true;
 178                 }
 179
 180         } while (keepRunning);
 181 }
 182
 183 typedef std::map<PBD::ID,boost::shared_ptr<AudioSource> > AudioSourceList;
 184
 185 /**
 186  * Updating is still disabled, see note in libs/ardour/import.cc Session::import_audiofiles()
 187  *
 188  * all_or_nothing:
 189  *   true  = show "Update", "Import" and "Skip"
 190  *   false = show "Import", and "Cancel"
 191  *
 192  * Returns:
 193  *     0  To update an existing source of the same name
 194  *     1  To import/embed the file normally (make sure the new name will be unique)
 195  *     2  If the user wants to skip this file
 196  **/
 197 int
 198 Editor::check_whether_and_how_to_import(string path, bool all_or_nothing)
 199 {
 200         string wave_name (Glib::path_get_basename(path));
 201
 202         AudioSourceList all_sources = session->get_audio_sources();
 203         bool wave_name_exists = false;
 204
 205         for (AudioSourceList::iterator i = all_sources.begin(); i != all_sources.end(); ++i) {
 206
 207                 boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(i->second);
 208
 209                 string tmp (Glib::path_get_basename (afs->path()));
 210
 211                 if (tmp == wave_name) {
 212                         wave_name_exists = true;
 213                         break;
 214                 }
 215         }
 216
 217         int function = 1;
 218
 219         if (wave_name_exists) {
 220                 string message;
 221                 if (all_or_nothing) {
 222                         // updating is still disabled
 223                         //message = string_compose(_("The session already contains a source file named %1. Do you want to update that file (and thus all regions using the file) or import this file as a new file?"),wave_name);
 224                         message = string_compose(_("The session already contains a source file named %1. This file will be imported as a new file, please confirm."),wave_name);
 225                 } else {
 226                         message = string_compose(_("A source file %1 already exists. This operation will not update that source but import the file %2 as a new source, please confirm."), wave_name, wave_name);
 227
 228                 }
 229                 MessageDialog dialog(message, false,Gtk::MESSAGE_QUESTION, Gtk::BUTTONS_NONE, true);
 230
 231                 if (all_or_nothing) {
 232                         // disabled
 233                         //dialog.add_button("Update", 0);
 234                         dialog.add_button("Import", 1);
 235                         dialog.add_button("Skip",   2);
 236                 } else {
 237                         dialog.add_button("Import", 1);
 238                         dialog.add_button("Cancel", 2);
 239                 }
 240
 241                 //dialog.add_button("Skip all", 4); // All or rest?
 242
 243                 dialog.show();
 244
 245                 function = dialog.run ();
 246
 247                 dialog.hide();
 248         }
 249
 250         return function;
 251 }
 252
 253 boost::shared_ptr<AudioTrack>
 254 Editor::get_nth_selected_audio_track (int nth) const
 255 {
 256         AudioTimeAxisView* atv;
 257         TrackSelection::iterator x;
 258
 259         for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
 260
 261                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 262
 263                 if (!atv) {
 264                         continue;
 265                 } else if (atv->is_audio_track()) {
 266                         --nth;
 267                 }
 268         }
 269
 270         if (x == selection->tracks.end()) {
 271                 atv = dynamic_cast<AudioTimeAxisView*>(selection->tracks.back());
 272         } else {
 273                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 274         }
 275
 276         if (!atv || !atv->is_audio_track()) {
 277                 return boost::shared_ptr<AudioTrack>();
 278         }
 279
 280         return atv->audio_track();
 281 }
 282
 283 void
 284 Editor::do_import (vector<ustring> paths, ImportDisposition chns, ImportMode mode, SrcQuality quality, nframes64_t& pos)
 285 {
 286         //this is where an import "starts" so initialize the count here ... the rest gets initialized in import_sndfiles()
 287         import_status.count = 0;
 288
 289         boost::shared_ptr<AudioTrack> track;
 290         vector<ustring> to_import;
 291         int nth = 0;
 292
 293         if (interthread_progress_window == 0) {
 294                 build_interthread_progress_window ();
 295         }
 296
 297         if (chns == Editing::ImportMergeFiles) {
 298
 299                 /* create 1 region from all paths, add to 1 track,
 300                    ignore "track"
 301                 */
 302
 303                 bool cancel = false;
 304                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 305                         int check = check_whether_and_how_to_import(*a, false);
 306                         if (check == 2) {
 307                                 cancel = true;
 308                                 break;
 309                         }
 310                 }
 311
 312                 if (!cancel) {
 313                         import_sndfiles (paths, mode, quality, pos, 1, 1, track, false, paths.size());
 314                 }
 315
 316         } else {
 317
 318                 bool replace = false;
 319                 bool ok = true;
 320                 vector<ustring>::size_type total = paths.size();
 321
 322                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end() && ok; ++a) {
 323
 324                         int check = check_whether_and_how_to_import (*a, true);
 325
 326                         switch (check) {
 327                         case 2:
 328                                 // user said skip
 329                                 continue;
 330                         case 0:
 331                                 fatal << "Updating existing sources should be disabled!" << endmsg;
 332                                 /* NOTREACHED*/
 333                                 break;
 334                         case 1:
 335                                 replace = false;
 336                                 break;
 337                         default:
 338                                 fatal << "Illegal return " << check <<  " from check_whether_and_how_to_import()!" << endmsg;
 339                                 /* NOTREACHED*/
 340                         }
 341
 342
 343                         switch (chns) {
 344                         case Editing::ImportDistinctFiles:
 345
 346                                 to_import.clear ();
 347                                 to_import.push_back (*a);
 348
 349                                 if (mode == Editing::ImportToTrack) {
 350                                         track = get_nth_selected_audio_track (nth++);
 351                                 }
 352
 353                                 ok = (import_sndfiles (to_import, mode, quality, pos, 1, -1, track, replace, total) == 0);
 354                                 break;
 355
 356                         case Editing::ImportDistinctChannels:
 357
 358                                 to_import.clear ();
 359                                 to_import.push_back (*a);
 360
 361                                 ok = (import_sndfiles (to_import, mode, quality, pos, -1, -1, track, replace, total) == 0);
 362                                 break;
 363
 364                         case Editing::ImportSerializeFiles:
 365
 366                                 to_import.clear ();
 367                                 to_import.push_back (*a);
 368
 369                                 ok = (import_sndfiles (to_import, mode, quality, pos, 1, 1, track, replace, total) == 0);
 370                                 break;
 371
 372                         case Editing::ImportMergeFiles:
 373                                 // Not entered, handled in earlier if() branch
 374                                 break;
 375                         }
 376                 }
 377         }
 378
 379         interthread_progress_window->hide_all ();
 380 }
 381
 382 void
 383 Editor::do_embed (vector<ustring> paths, ImportDisposition chns, ImportMode mode, nframes64_t& pos)
 384 {
 385         boost::shared_ptr<AudioTrack> track;
 386         bool check_sample_rate = true;
 387         bool ok = false;
 388         vector<ustring> to_embed;
 389         bool multi = paths.size() > 1;
 390         int nth = 0;
 391
 392         switch (chns) {
 393         case Editing::ImportDistinctFiles:
 394                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 395
 396                         to_embed.clear ();
 397                         to_embed.push_back (*a);
 398
 399                         if (mode == Editing::ImportToTrack) {
 400                                 track = get_nth_selected_audio_track (nth++);
 401                         }
 402
 403                         if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, 1, -1, track) < -1) {
 404                                 goto out;
 405                         }
 406                 }
 407                 break;
 408
 409         case Editing::ImportDistinctChannels:
 410                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 411
 412                         to_embed.clear ();
 413                         to_embed.push_back (*a);
 414
 415                         if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, -1, -1, track) < -1) {
 416                                 goto out;
 417                         }
 418                 }
 419                 break;
 420
 421         case Editing::ImportMergeFiles:
 422                 if (embed_sndfiles (paths, multi, check_sample_rate, mode, pos, 1, 1, track) < -1) {
 423                         goto out;
 424                 }
 425         break;
 426
 427         case Editing::ImportSerializeFiles:
 428                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 429
 430                         to_embed.clear ();
 431                         to_embed.push_back (*a);
 432
 433                         if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, 1, 1, track) < -1) {
 434                                 goto out;
 435                         }
 436                 }
 437                 break;
 438         }
 439
 440         ok = true;
 441
 442   out:
 443         if (ok) {
 444                 session->save_state ("");
 445         }
 446 }
 447
 448 int
 449 Editor::import_sndfiles (vector<ustring> paths, ImportMode mode, SrcQuality quality, nframes64_t& pos,
 450                          int target_regions, int target_tracks, boost::shared_ptr<AudioTrack> track, bool replace,
 451                          uint32_t total)
 452 {
 453         interthread_progress_window->set_title (string_compose (_("Importing %1"), paths.front()));
 454         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
 455         interthread_progress_bar.set_fraction (0.0f);
 456         interthread_cancel_label.set_text (_("Cancel Import"));
 457         current_interthread_info = &import_status;
 458
 459         import_status.paths = paths;
 460         import_status.done = false;
 461         import_status.cancel = false;
 462         import_status.freeze = false;
 463         import_status.done = 0.0;
 464         import_status.quality = quality;
 465         import_status.replace_existing_source = replace;
 466         import_status.total = total;
 467
 468         import_status.mode = mode;
 469         import_status.pos = pos;
 470         import_status.target_tracks = target_tracks;
 471         import_status.target_regions = target_regions;
 472         import_status.track = track;
 473         import_status.replace = replace;
 474         interthread_progress_connection = Glib::signal_timeout().connect
 475                 (bind (mem_fun(*this, &Editor::import_progress_timeout), (gpointer) 0), 500);
 476
 477         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
 478         gdk_flush ();
 479
 480         /* start import thread for this spec. this will ultimately call Session::import_audiofile()
 481            which, if successful, will add the files as regions to the region list. its up to us
 482            (the GUI) to direct additional steps after that.
 483         */
 484
 485         pthread_create_and_store ("import", &import_status.thread, 0, _import_thread, this);
 486         pthread_detach (import_status.thread);
 487
 488         while (!import_status.done && !import_status.cancel) {
 489                 gtk_main_iteration ();
 490         }
 491
 492         interthread_progress_window->hide ();
 493         import_status.done = true;
 494         interthread_progress_connection.disconnect ();
 495
 496         if (!import_status.cancel && !import_status.sources.empty()) {
 497                 if (add_sources (import_status.paths,
 498                                  import_status.sources,
 499                                  import_status.pos,
 500                                  import_status.mode,
 501                                  import_status.target_regions,
 502                                  import_status.target_tracks,
 503                                  import_status.track, false) == 0) {
 504                         session->save_state ("");
 505                 }
 506
 507                 /* update position from results */
 508
 509                 pos = import_status.pos;
 510         }
 511
 512
 513         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
 514         return 0;
 515 }
 516
 517 int
 518 Editor::embed_sndfiles (vector<Glib::ustring> paths, bool multifile,
 519                         bool& check_sample_rate, ImportMode mode, nframes64_t& pos, int target_regions, int target_tracks,
 520                         boost::shared_ptr<AudioTrack> track)
 521 {
 522         boost::shared_ptr<AudioFileSource> source;
 523         SourceList sources;
 524         string linked_path;
 525         SoundFileInfo finfo;
 526         int ret = 0;
 527         Glib::ustring path_to_use;
 528
 529         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
 530         gdk_flush ();
 531
 532         for (vector<Glib::ustring>::iterator p = paths.begin(); p != paths.end(); ++p) {
 533
 534                 ustring path = *p;
 535
 536                 /* lets see if we can link it into the session */
 537
 538                 linked_path = session->sound_dir();
 539                 linked_path += '/';
 540                 linked_path += Glib::path_get_basename (path);
 541
 542                 path_to_use = path;
 543
 544                 if (link (path.c_str(), linked_path.c_str()) == 0) {
 545
 546                         /* there are many reasons why link(2) might have failed.
 547                            but if it succeeds, we now have a link in the
 548                            session sound dir that will protect against
 549                            unlinking of the original path. nice.
 550                         */
 551
 552                         path = linked_path;
 553                         path_to_use = Glib::path_get_basename (linked_path);
 554
 555                 } else {
 556
 557                         /* one possible reason is that its already linked */
 558
 559                         if (errno == EEXIST) {
 560                                 struct stat sb;
 561
 562                                 if (stat (linked_path.c_str(), &sb) == 0) {
 563                                         if (sb.st_nlink > 1) { // its a hard link, assume its the one we want
 564                                                 path = linked_path;
 565                                                 path_to_use = Glib::path_get_basename (linked_path);
 566                                         }
 567                                 }
 568                         }
 569                 }
 570
 571                 /* note that we temporarily truncated _id at the colon */
 572
 573                 string error_msg;
 574
 575                 if (!AudioFileSource::get_soundfile_info (path, finfo, error_msg)) {
 576                         error << string_compose(_("Editor: cannot open file \"%1\", (%2)"), path, error_msg ) << endmsg;
 577                         goto out;
 578                 }
 579
 580                 if (check_sample_rate  && (finfo.samplerate != (int) session->frame_rate())) {
 581                         vector<string> choices;
 582
 583                         if (multifile) {
 584                                 choices.push_back (_("Cancel entire import"));
 585                                 choices.push_back (_("Don't embed it"));
 586                                 choices.push_back (_("Embed all without questions"));
 587
 588                                 Gtkmm2ext::Choice rate_choice (
 589                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"),
 590                                                         short_path (path, 40)),
 591                                         choices, false);
 592
 593                                 int resx = rate_choice.run ();
 594
 595                                 switch (resx) {
 596                                 case 0: /* stop a multi-file import */
 597                                         ret = -2;
 598                                         goto out;
 599                                 case 1: /* don't embed this one */
 600                                         ret = -1;
 601                                         goto out;
 602                                 case 2: /* do it, and the rest without asking */
 603                                         check_sample_rate = false;
 604                                         break;
 605                                 case 3: /* do it */
 606                                         break;
 607                                 default:
 608                                         ret = -2;
 609                                         goto out;
 610                                 }
 611                         } else {
 612                                 choices.push_back (_("Cancel"));
 613                                 choices.push_back (_("Embed it anyway"));
 614
 615                                 Gtkmm2ext::Choice rate_choice (
 616                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"), path),
 617                                         choices, false);
 618
 619                                 int resx = rate_choice.run ();
 620
 621                                 switch (resx) {
 622                                 case 0: /* don't import */
 623                                         ret = -1;
 624                                         goto out;
 625                                 case 1: /* do it */
 626                                         break;
 627                                 default:
 628                                         ret = -2;
 629                                         goto out;
 630                                 }
 631                         }
 632                 }
 633
 634                 track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
 635
 636                 for (int n = 0; n < finfo.channels; ++n) {
 637                         try {
 638
 639                                 /* check if we have this thing embedded already */
 640
 641                                 boost::shared_ptr<Source> s;
 642
 643                                 if ((s = session->source_by_path_and_channel (path, n)) == 0) {
 644
 645                                         source = boost::dynamic_pointer_cast<AudioFileSource> (SourceFactory::createReadable
 646                                                                                                (*session, path_to_use,  n,
 647                                                                                                 (mode == ImportAsTapeTrack ?
 648                                                                                                  AudioFileSource::Destructive :
 649                                                                                                  AudioFileSource::Flag (0)),
 650                                                                                                 true, true));
 651                                 } else {
 652                                         source = boost::dynamic_pointer_cast<AudioFileSource> (s);
 653                                 }
 654
 655                                 sources.push_back(source);
 656                         }
 657
 658                         catch (failed_constructor& err) {
 659                                 error << string_compose(_("could not open %1"), path) << endmsg;
 660                                 goto out;
 661                         }
 662
 663                         ARDOUR_UI::instance()->flush_pending ();
 664                 }
 665         }
 666
 667         if (sources.empty()) {
 668                 goto out;
 669         }
 670
 671         ret = add_sources (paths, sources, pos, mode, target_regions, target_tracks, track, true);
 672
 673   out:
 674         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
 675         return ret;
 676 }
 677
 678 int
 679 Editor::add_sources (vector<Glib::ustring> paths, SourceList& sources, nframes64_t& pos, ImportMode mode,
 680                      int target_regions, int target_tracks, boost::shared_ptr<AudioTrack>& track, bool add_channel_suffix)
 681 {
 682         vector<boost::shared_ptr<AudioRegion> > regions;
 683         ustring region_name;
 684         uint32_t input_chan = 0;
 685         uint32_t output_chan = 0;
 686         bool use_timestamp;
 687
 688         use_timestamp = (pos == -1);
 689
 690         if (use_timestamp) {
 691                 if (sources[0]->natural_position() != 0) {
 692                         pos = sources[0]->natural_position();
 693                 } else {
 694                         pos = get_preferred_edit_position ();
 695                 }
 696         }
 697
 698         if (target_regions == 1) {
 699
 700                 /* take all the sources we have and package them up as a region */
 701
 702                 region_name = region_name_from_path (paths.front(), (sources.size() > 1), false);
 703                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>
 704                                    (RegionFactory::create (sources, 0, sources[0]->length(), region_name, 0,
 705                                                            Region::Flag (Region::DefaultFlags|Region::WholeFile|Region::External)));
 706
 707         if (use_timestamp) {
 708                     ar->special_set_position(sources[0]->natural_position());
 709                 }
 710
 711                 regions.push_back (ar);
 712
 713         } else if (target_regions == -1 || target_regions > 1) {
 714
 715                 /* take each source and create a region for each one */
 716
 717                 SourceList just_one;
 718                 SourceList::iterator x;
 719                 uint32_t n;
 720
 721                 for (n = 0, x = sources.begin(); x != sources.end(); ++x, ++n) {
 722
 723                         just_one.clear ();
 724                         just_one.push_back (*x);
 725
 726                         boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource> (*x);
 727
 728                         region_name = region_name_from_path (afs->path(), false, true, sources.size(), n);
 729                         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>
 730                                            (RegionFactory::create (just_one, 0, (*x)->length(), region_name, 0,
 731                                                                    Region::Flag (Region::DefaultFlags|Region::WholeFile|Region::External)));
 732
 733             if (use_timestamp) {
 734                     ar->special_set_position((*x)->natural_position());
 735                 }
 736
 737                         regions.push_back (ar);
 738                 }
 739         }
 740
 741         if (target_regions == 1) {
 742                 input_chan = regions.front()->n_channels();
 743         } else {
 744                 if (target_tracks == 1) {
 745                         input_chan = regions.size();
 746                 } else {
 747                         input_chan = 1;
 748                 }
 749         }
 750
 751         if (Config->get_output_auto_connect() & AutoConnectMaster) {
 752                 output_chan = (session->master_out() ? session->master_out()->n_inputs() : input_chan);
 753         } else {
 754                 output_chan = input_chan;
 755         }
 756
 757         int n = 0;
 758
 759         for (vector<boost::shared_ptr<AudioRegion> >::iterator r = regions.begin(); r != regions.end(); ++r, ++n) {
 760
 761                 finish_bringing_in_audio (*r, input_chan, output_chan, pos, mode, track);
 762
 763                 if (target_tracks != 1) {
 764                         track.reset ();
 765                 } else {
 766                         pos += (*r)->length();
 767                 }
 768         }
 769
 770         /* setup peak file building in another thread */
 771
 772         for (SourceList::iterator x = sources.begin(); x != sources.end(); ++x) {
 773                 SourceFactory::setup_peakfile (*x, true);
 774         }
 775
 776         return 0;
 777 }
 778
 779 int
 780 Editor::finish_bringing_in_audio (boost::shared_ptr<AudioRegion> region, uint32_t in_chans, uint32_t out_chans, nframes64_t& pos,
 781                                   ImportMode mode, boost::shared_ptr<AudioTrack>& existing_track)
 782 {
 783         switch (mode) {
 784         case ImportAsRegion:
 785                 /* relax, its been done */
 786                 break;
 787
 788         case ImportToTrack:
 789         {
 790                 if (!existing_track) {
 791
 792                         existing_track = get_nth_selected_audio_track (0);
 793
 794                         if (!existing_track) {
 795                                 return -1;
 796                         }
 797                 }
 798
 799                 boost::shared_ptr<Playlist> playlist = existing_track->diskstream()->playlist();
 800                 boost::shared_ptr<AudioRegion> copy (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (region)));
 801                 begin_reversible_command (_("insert sndfile"));
 802                 XMLNode &before = playlist->get_state();
 803                 playlist->add_region (copy, pos);
 804                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
 805                 commit_reversible_command ();
 806                 break;
 807         }
 808
 809         case ImportAsTrack:
 810         {
 811                 if (!existing_track) {
 812                         list<boost::shared_ptr<AudioTrack> > at (session->new_audio_track (in_chans, out_chans, Normal, 1));
 813
 814                         if (at.empty()) {
 815                                 return -1;
 816                         }
 817
 818                         existing_track = at.front();
 819                         existing_track->set_name (region->name(), this);
 820                 }
 821
 822                 boost::shared_ptr<AudioRegion> copy (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (region)));
 823                 existing_track->diskstream()->playlist()->add_region (copy, pos);
 824                 break;
 825         }
 826
 827
 828         case ImportAsTapeTrack:
 829         {
 830                 list<boost::shared_ptr<AudioTrack> > at (session->new_audio_track (in_chans, out_chans, Destructive));
 831                 if (!at.empty()) {
 832                         boost::shared_ptr<AudioRegion> copy (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (region)));
 833                         at.front()->set_name (basename_nosuffix (copy->name()), this);
 834                         at.front()->diskstream()->playlist()->add_region (copy, pos);
 835                 }
 836                 break;
 837         }
 838         }
 839
 840         return 0;
 841 }
 842
 843 void *
 844 Editor::_import_thread (void *arg)
 845 {
 846         PBD::notify_gui_about_thread_creation (pthread_self(), X_("Import"));
 847
 848         Editor *ed = (Editor *) arg;
 849         return ed->import_thread ();
 850 }
 851
 852 void *
 853 Editor::import_thread ()
 854 {
 855         session->import_audiofiles (import_status);
 856         pthread_exit_pbd (0);
 857         /*NOTREACHED*/
 858         return 0;
 859 }
 860
 861 gint
 862 Editor::import_progress_timeout (void *arg)
 863 {
 864         bool reset = false;
 865
 866         if (!interthread_progress_window->is_visible()) {
 867                 interthread_progress_window->show_all ();
 868                 reset = true;
 869         }
 870
 871         interthread_progress_label.set_text (import_status.doing_what);
 872
 873         if (import_status.freeze) {
 874                 interthread_cancel_button.set_sensitive(false);
 875         } else {
 876                 interthread_cancel_button.set_sensitive(true);
 877         }
 878
 879         if (import_status.doing_what == "building peak files") {
 880                 interthread_progress_bar.pulse ();
 881                 return FALSE;
 882         } else {
 883                 float val = import_status.progress;
 884                 interthread_progress_bar.set_fraction (min (max (0.0f, val), 1.0f));
 885         }
 886
 887         if (reset) {
 888
 889                 /* the window is now visible, speed up the updates */
 890
 891                 interthread_progress_connection.disconnect ();
 892                 interthread_progress_connection = Glib::signal_timeout().connect
 893                         (bind (mem_fun(*this, &Editor::import_progress_timeout), (gpointer) 0), 100);
 894                 return false;
 895         } else {
 896                 return !(import_status.done || import_status.cancel);
 897         }
 898 }
 899