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 #include "pbd/stateful_diff_command.h"
  33
  34 #include <gtkmm2ext/choice.h>
  35
  36 #include "ardour/audio_track.h"
  37 #include "ardour/audiofilesource.h"
  38 #include "ardour/audioregion.h"
  39 #include "ardour/midi_region.h"
  40 #include "ardour/midi_track.h"
  41 #include "ardour/operations.h"
  42 #include "ardour/region_factory.h"
  43 #include "ardour/smf_source.h"
  44 #include "ardour/source_factory.h"
  45 #include "ardour/utils.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 "midi_time_axis.h"
  54 #include "session_import_dialog.h"
  55 #include "utils.h"
  56 #include "gui_thread.h"
  57 #include "interthread_progress_window.h"
  58 #include "mouse_cursors.h"
  59 #include "editor_cursors.h"
  60
  61 #include "i18n.h"
  62
  63 using namespace std;
  64 using namespace ARDOUR;
  65 using namespace PBD;
  66 using namespace Gtk;
  67 using namespace Gtkmm2ext;
  68 using namespace Editing;
  69 using std::string;
  70
  71 /* Functions supporting the incorporation of external (non-captured) audio material into ardour */
  72
  73 void
  74 Editor::add_external_audio_action (ImportMode mode_hint)
  75 {
  76         if (_session == 0) {
  77                 MessageDialog msg (_("You can't import or embed an audiofile until you have a session loaded."));
  78                 msg.run ();
  79                 return;
  80         }
  81
  82         if (sfbrowser == 0) {
  83                 sfbrowser = new SoundFileOmega (_("Add Existing Media"), _session, 0, true, mode_hint);
  84         } else {
  85                 sfbrowser->set_mode (mode_hint);
  86         }
  87
  88         external_audio_dialog ();
  89 }
  90
  91 void
  92 Editor::external_audio_dialog ()
  93 {
  94         vector<string> paths;
  95         uint32_t audio_track_cnt;
  96         uint32_t midi_track_cnt;
  97
  98         if (_session == 0) {
  99                 MessageDialog msg (_("You can't import or embed an audiofile until you have a session loaded."));
 100                 msg.run ();
 101                 return;
 102         }
 103
 104         audio_track_cnt = 0;
 105         midi_track_cnt = 0;
 106
 107         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
 108                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(*x);
 109
 110                 if (atv) {
 111                         if (atv->is_audio_track()) {
 112                                 audio_track_cnt++;
 113                         }
 114
 115                 } else {
 116                         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(*x);
 117
 118                         if (mtv) {
 119                                 if (mtv->is_midi_track()) {
 120                                         midi_track_cnt++;
 121                                 }
 122                         }
 123                 }
 124         }
 125
 126         if (sfbrowser == 0) {
 127                 sfbrowser = new SoundFileOmega (_("Add Existing Media"), _session, audio_track_cnt, midi_track_cnt, true);
 128         } else {
 129                 sfbrowser->reset (audio_track_cnt, midi_track_cnt);
 130         }
 131
 132         sfbrowser->show_all ();
 133 }
 134
 135 void
 136 Editor::session_import_dialog ()
 137 {
 138         SessionImportDialog dialog (_session);
 139         ensure_float (dialog);
 140         dialog.run ();
 141 }
 142
 143 typedef std::map<PBD::ID,boost::shared_ptr<ARDOUR::Source> > SourceMap;
 144
 145 /**
 146  * Updating is still disabled, see note in libs/ardour/import.cc Session::import_files()
 147  *
 148  * all_or_nothing:
 149  *   true  = show "Update", "Import" and "Skip"
 150  *   false = show "Import", and "Cancel"
 151  *
 152  * Returns:
 153  *     0  To update an existing source of the same name
 154  *     1  To import/embed the file normally (make sure the new name will be unique)
 155  *     2  If the user wants to skip this file
 156  **/
 157 int
 158 Editor::check_whether_and_how_to_import(string path, bool all_or_nothing)
 159 {
 160         string wave_name (Glib::path_get_basename(path));
 161
 162         bool already_exists = false;
 163         uint32_t existing;
 164
 165         if ((existing = _session->count_sources_by_origin (path)) > 0) {
 166                 already_exists = true;
 167         }
 168
 169         int function = 1;
 170
 171         if (already_exists) {
 172                 string message;
 173                 if (all_or_nothing) {
 174                         // updating is still disabled
 175                         //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);
 176                         message = string_compose (_("The session already contains a source file named %1.  Do you want to import %1 as a new file, or skip it?"), wave_name);
 177                 } else {
 178                         message = string_compose (_("The session already contains a source file named %1.  Do you want to import %2 as a new source, or skip it?"), wave_name, wave_name);
 179
 180                 }
 181                 MessageDialog dialog(message, false, Gtk::MESSAGE_QUESTION, Gtk::BUTTONS_NONE, true);
 182
 183                 if (all_or_nothing) {
 184                         // disabled
 185                         //dialog.add_button("Update", 0);
 186                         dialog.add_button("Import", 1);
 187                         dialog.add_button("Skip",   2);
 188                 } else {
 189                         dialog.add_button("Import", 1);
 190                         dialog.add_button("Cancel", 2);
 191                 }
 192
 193                 //dialog.add_button("Skip all", 4); // All or rest?
 194
 195                 dialog.show();
 196
 197                 function = dialog.run ();
 198
 199                 dialog.hide();
 200         }
 201
 202         return function;
 203 }
 204
 205 boost::shared_ptr<AudioTrack>
 206 Editor::get_nth_selected_audio_track (int nth) const
 207 {
 208         AudioTimeAxisView* atv;
 209         TrackSelection::iterator x;
 210
 211         for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
 212
 213                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 214
 215                 if (!atv) {
 216                         continue;
 217                 } else if (atv->is_audio_track()) {
 218                         --nth;
 219                 }
 220         }
 221
 222         if (x == selection->tracks.end()) {
 223                 atv = dynamic_cast<AudioTimeAxisView*>(selection->tracks.back());
 224         } else {
 225                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 226         }
 227
 228         if (!atv || !atv->is_audio_track()) {
 229                 return boost::shared_ptr<AudioTrack>();
 230         }
 231
 232         return atv->audio_track();
 233 }
 234
 235 boost::shared_ptr<MidiTrack>
 236 Editor::get_nth_selected_midi_track (int nth) const
 237 {
 238         MidiTimeAxisView* mtv;
 239         TrackSelection::iterator x;
 240
 241         for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
 242
 243                 mtv = dynamic_cast<MidiTimeAxisView*>(*x);
 244
 245                 if (!mtv) {
 246                         continue;
 247                 } else if (mtv->is_midi_track()) {
 248                         --nth;
 249                 }
 250         }
 251
 252         if (x == selection->tracks.end()) {
 253                 mtv = dynamic_cast<MidiTimeAxisView*>(selection->tracks.back());
 254         } else {
 255                 mtv = dynamic_cast<MidiTimeAxisView*>(*x);
 256         }
 257
 258         if (!mtv || !mtv->is_midi_track()) {
 259                 return boost::shared_ptr<MidiTrack>();
 260         }
 261
 262         return mtv->midi_track();
 263 }
 264
 265 void
 266 Editor::do_import (vector<string> paths, ImportDisposition disposition, ImportMode mode, SrcQuality quality, framepos_t& pos)
 267 {
 268         boost::shared_ptr<Track> track;
 269         vector<string> to_import;
 270         int nth = 0;
 271         bool use_timestamp = (pos == -1);
 272
 273         current_interthread_info = &import_status;
 274         import_status.current = 1;
 275         import_status.total = paths.size ();
 276         import_status.all_done = false;
 277
 278         ImportProgressWindow ipw (&import_status, _("Import"), _("Cancel Import"));
 279
 280         bool ok = true;
 281
 282         if (disposition == Editing::ImportMergeFiles) {
 283
 284                 /* create 1 region from all paths, add to 1 track,
 285                    ignore "track"
 286                 */
 287
 288                 bool cancel = false;
 289                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 290                         int check = check_whether_and_how_to_import(*a, false);
 291                         if (check == 2) {
 292                                 cancel = true;
 293                                 break;
 294                         }
 295                 }
 296
 297                 if (cancel) {
 298                         ok = false;
 299                 } else {
 300                         ipw.show ();
 301                         ok = (import_sndfiles (paths, disposition, mode, quality, pos, 1, 1, track, false) == 0);
 302                 }
 303
 304         } else {
 305
 306                 bool replace = false;
 307
 308                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 309
 310                         const int check = check_whether_and_how_to_import (*a, true);
 311
 312                         switch (check) {
 313                         case 2:
 314                                 // user said skip
 315                                 continue;
 316                         case 0:
 317                                 fatal << "Updating existing sources should be disabled!" << endmsg;
 318                                 /* NOTREACHED*/
 319                                 break;
 320                         case 1:
 321                                 replace = false;
 322                                 break;
 323                         default:
 324                                 fatal << "Illegal return " << check <<  " from check_whether_and_how_to_import()!" << endmsg;
 325                                 /* NOTREACHED*/
 326                         }
 327
 328                         /* have to reset this for every file we handle */
 329
 330                         if (use_timestamp) {
 331                                 pos = -1;
 332                         }
 333
 334                         ipw.show ();
 335
 336                         switch (disposition) {
 337                         case Editing::ImportDistinctFiles:
 338
 339                                 to_import.clear ();
 340                                 to_import.push_back (*a);
 341
 342                                 if (mode == Editing::ImportToTrack) {
 343                                         track = get_nth_selected_audio_track (nth++);
 344                                 }
 345
 346                                 ok = (import_sndfiles (to_import, disposition, mode, quality, pos, 1, -1, track, replace) == 0);
 347                                 break;
 348
 349                         case Editing::ImportDistinctChannels:
 350
 351                                 to_import.clear ();
 352                                 to_import.push_back (*a);
 353
 354                                 ok = (import_sndfiles (to_import, disposition, mode, quality, pos, -1, -1, track, replace) == 0);
 355                                 break;
 356
 357                         case Editing::ImportSerializeFiles:
 358
 359                                 to_import.clear ();
 360                                 to_import.push_back (*a);
 361
 362                                 ok = (import_sndfiles (to_import, disposition, mode, quality, pos, 1, 1, track, replace) == 0);
 363                                 break;
 364
 365                         case Editing::ImportMergeFiles:
 366                                 // Not entered, handled in earlier if() branch
 367                                 break;
 368                         }
 369                 }
 370         }
 371
 372         if (ok) {
 373                 _session->save_state ("");
 374         }
 375
 376         import_status.all_done = true;
 377 }
 378
 379 void
 380 Editor::do_embed (vector<string> paths, ImportDisposition import_as, ImportMode mode, framepos_t& pos)
 381 {
 382         boost::shared_ptr<Track> track;
 383         bool check_sample_rate = true;
 384         bool ok = false;
 385         vector<string> to_embed;
 386         bool multi = paths.size() > 1;
 387         int nth = 0;
 388         bool use_timestamp = (pos == -1);
 389
 390         switch (import_as) {
 391         case Editing::ImportDistinctFiles:
 392                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 393
 394                         /* have to reset this for every file we handle */
 395                         if (use_timestamp) {
 396                                 pos = -1;
 397                         }
 398
 399                         to_embed.clear ();
 400                         to_embed.push_back (*a);
 401
 402                         if (mode == Editing::ImportToTrack) {
 403                                 track = get_nth_selected_audio_track (nth++);
 404                         }
 405
 406                         if (embed_sndfiles (to_embed, multi, check_sample_rate, import_as, mode, pos, 1, -1, track) < -1) {
 407                                 goto out;
 408                         }
 409                 }
 410                 break;
 411
 412         case Editing::ImportDistinctChannels:
 413                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 414
 415                         /* have to reset this for every file we handle */
 416                         if (use_timestamp) {
 417                                 pos = -1;
 418                         }
 419
 420                         to_embed.clear ();
 421                         to_embed.push_back (*a);
 422
 423                         if (embed_sndfiles (to_embed, multi, check_sample_rate, import_as, mode, pos, -1, -1, track) < -1) {
 424                                 goto out;
 425                         }
 426                 }
 427                 break;
 428
 429         case Editing::ImportMergeFiles:
 430                 if (embed_sndfiles (paths, multi, check_sample_rate, import_as, mode, pos, 1, 1, track) < -1) {
 431                         goto out;
 432                 }
 433                 break;
 434
 435         case Editing::ImportSerializeFiles:
 436                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 437
 438                         /* have to reset this for every file we handle */
 439                         if (use_timestamp) {
 440                                 pos = -1;
 441                         }
 442
 443                         to_embed.clear ();
 444                         to_embed.push_back (*a);
 445
 446                         if (embed_sndfiles (to_embed, multi, check_sample_rate, import_as, mode, pos, 1, 1, track) < -1) {
 447                                 goto out;
 448                         }
 449                 }
 450                 break;
 451         }
 452
 453         ok = true;
 454
 455   out:
 456         if (ok) {
 457                 _session->save_state ("");
 458         }
 459 }
 460
 461 int
 462 Editor::import_sndfiles (vector<string> paths, ImportDisposition disposition, ImportMode mode, SrcQuality quality, framepos_t& pos,
 463                          int target_regions, int target_tracks, boost::shared_ptr<Track>& track, bool replace)
 464 {
 465         import_status.paths = paths;
 466         import_status.done = false;
 467         import_status.cancel = false;
 468         import_status.freeze = false;
 469         import_status.quality = quality;
 470         import_status.replace_existing_source = replace;
 471
 472         import_status.mode = mode;
 473         import_status.pos = pos;
 474         import_status.target_tracks = target_tracks;
 475         import_status.target_regions = target_regions;
 476         import_status.track = track;
 477         import_status.replace = replace;
 478
 479         set_canvas_cursor (_cursors->wait);
 480         gdk_flush ();
 481
 482         /* start import thread for this spec. this will ultimately call Session::import_files()
 483            which, if successful, will add the files as regions to the region list. its up to us
 484            (the GUI) to direct additional steps after that.
 485         */
 486
 487         pthread_create_and_store ("import", &import_status.thread, _import_thread, this);
 488         pthread_detach (import_status.thread);
 489
 490         while (!import_status.done && !import_status.cancel) {
 491                 gtk_main_iteration ();
 492         }
 493
 494         import_status.done = true;
 495
 496         int result = -1;
 497
 498         if (!import_status.cancel && !import_status.sources.empty()) {
 499                 result = add_sources (
 500                         import_status.paths,
 501                         import_status.sources,
 502                         import_status.pos,
 503                         disposition,
 504                         import_status.mode,
 505                         import_status.target_regions,
 506                         import_status.target_tracks,
 507                         track, false
 508                         );
 509
 510                 /* update position from results */
 511
 512                 pos = import_status.pos;
 513         }
 514
 515         set_canvas_cursor (current_canvas_cursor);
 516         return result;
 517 }
 518
 519 int
 520 Editor::embed_sndfiles (vector<string> paths, bool multifile,
 521                         bool& check_sample_rate, ImportDisposition disposition, ImportMode mode,
 522                         framepos_t& pos, int target_regions, int target_tracks,
 523                         boost::shared_ptr<Track>& track)
 524 {
 525         boost::shared_ptr<AudioFileSource> source;
 526         SourceList sources;
 527         string linked_path;
 528         SoundFileInfo finfo;
 529         int ret = 0;
 530
 531         set_canvas_cursor (_cursors->wait);
 532         gdk_flush ();
 533
 534         for (vector<string>::iterator p = paths.begin(); p != paths.end(); ++p) {
 535
 536                 string path = *p;
 537                 string error_msg;
 538
 539                 /* note that we temporarily truncated _id at the colon */
 540
 541                 if (!AudioFileSource::get_soundfile_info (path, finfo, error_msg)) {
 542                         error << string_compose(_("Editor: cannot open file \"%1\", (%2)"), path, error_msg ) << endmsg;
 543                         goto out;
 544                 }
 545
 546                 if (check_sample_rate  && (finfo.samplerate != (int) _session->frame_rate())) {
 547                         vector<string> choices;
 548
 549                         if (multifile) {
 550                                 choices.push_back (_("Cancel entire import"));
 551                                 choices.push_back (_("Don't embed it"));
 552                                 choices.push_back (_("Embed all without questions"));
 553
 554                                 Gtkmm2ext::Choice rate_choice (
 555                                         _("Sample rate"),
 556                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"),
 557                                                         short_path (path, 40)),
 558                                         choices, false
 559                                         );
 560
 561                                 int resx = rate_choice.run ();
 562
 563                                 switch (resx) {
 564                                 case 0: /* stop a multi-file import */
 565                                         ret = -2;
 566                                         goto out;
 567                                 case 1: /* don't embed this one */
 568                                         ret = -1;
 569                                         goto out;
 570                                 case 2: /* do it, and the rest without asking */
 571                                         check_sample_rate = false;
 572                                         break;
 573                                 case 3: /* do it */
 574                                         break;
 575                                 default:
 576                                         ret = -2;
 577                                         goto out;
 578                                 }
 579                         } else {
 580                                 choices.push_back (_("Cancel"));
 581                                 choices.push_back (_("Embed it anyway"));
 582
 583                                 Gtkmm2ext::Choice rate_choice (
 584                                         _("Sample rate"),
 585                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"), path),
 586                                         choices, false
 587                                         );
 588
 589                                 int resx = rate_choice.run ();
 590
 591                                 switch (resx) {
 592                                 case 0: /* don't import */
 593                                         ret = -1;
 594                                         goto out;
 595                                 case 1: /* do it */
 596                                         break;
 597                                 default:
 598                                         ret = -2;
 599                                         goto out;
 600                                 }
 601                         }
 602                 }
 603
 604                 set_canvas_cursor (_cursors->wait);
 605
 606                 for (int n = 0; n < finfo.channels; ++n) {
 607
 608                         try {
 609
 610                                 /* check if we have this thing embedded already */
 611
 612                                 boost::shared_ptr<Source> s;
 613
 614                                 if ((s = _session->audio_source_by_path_and_channel (path, n)) == 0) {
 615
 616                                         source = boost::dynamic_pointer_cast<AudioFileSource> (
 617                                                 SourceFactory::createExternal (DataType::AUDIO, *_session,
 618                                                                                path, n,
 619                                                                                (mode == ImportAsTapeTrack
 620                                                                                 ? Source::Destructive
 621                                                                                 : Source::Flag (0)),
 622                                                                         true, true));
 623                                 } else {
 624                                         source = boost::dynamic_pointer_cast<AudioFileSource> (s);
 625                                 }
 626
 627                                 sources.push_back(source);
 628                         }
 629
 630                         catch (failed_constructor& err) {
 631                                 error << string_compose(_("could not open %1"), path) << endmsg;
 632                                 goto out;
 633                         }
 634
 635                         ARDOUR_UI::instance()->flush_pending ();
 636                 }
 637         }
 638
 639         if (sources.empty()) {
 640                 goto out;
 641         }
 642
 643
 644         ret = add_sources (paths, sources, pos, disposition, mode, target_regions, target_tracks, track, true);
 645
 646   out:
 647         set_canvas_cursor (current_canvas_cursor);
 648         return ret;
 649 }
 650
 651 int
 652 Editor::add_sources (vector<string> paths, SourceList& sources, framepos_t& pos, ImportDisposition disposition, ImportMode mode,
 653                      int target_regions, int target_tracks, boost::shared_ptr<Track>& track, bool /*add_channel_suffix*/)
 654 {
 655         vector<boost::shared_ptr<Region> > regions;
 656         string region_name;
 657         uint32_t input_chan = 0;
 658         uint32_t output_chan = 0;
 659         bool use_timestamp;
 660         vector<string> track_names;
 661
 662         use_timestamp = (pos == -1);
 663
 664         // kludge (for MIDI we're abusing "channel" for "track" here)
 665         if (SMFSource::safe_midi_file_extension (paths.front())) {
 666                 target_regions = -1;
 667         }
 668
 669         if (target_regions == 1) {
 670
 671                 /* take all the sources we have and package them up as a region */
 672
 673                 region_name = region_name_from_path (paths.front(), (sources.size() > 1), false);
 674
 675                 /* we checked in import_sndfiles() that there were not too many */
 676
 677                 while (RegionFactory::region_by_name (region_name)) {
 678                         region_name = bump_name_once (region_name, '.');
 679                 }
 680
 681                 PropertyList plist;
 682
 683                 plist.add (ARDOUR::Properties::start, 0);
 684                 plist.add (ARDOUR::Properties::length, sources[0]->length (pos));
 685                 plist.add (ARDOUR::Properties::name, region_name);
 686                 plist.add (ARDOUR::Properties::layer, 0);
 687                 plist.add (ARDOUR::Properties::whole_file, true);
 688                 plist.add (ARDOUR::Properties::external, true);
 689
 690                 boost::shared_ptr<Region> r = RegionFactory::create (sources, plist);
 691
 692                 if (use_timestamp && boost::dynamic_pointer_cast<AudioRegion>(r)) {
 693                         boost::dynamic_pointer_cast<AudioRegion>(r)->special_set_position(sources[0]->natural_position());
 694                 }
 695
 696                 regions.push_back (r);
 697
 698                 /* if we're creating a new track, name it after the cleaned-up
 699                  * and "merged" region name.
 700                  */
 701
 702                 track_names.push_back (region_name);
 703
 704         } else if (target_regions == -1 || target_regions > 1) {
 705
 706                 /* take each source and create a region for each one */
 707
 708                 SourceList just_one;
 709                 SourceList::iterator x;
 710                 uint32_t n;
 711
 712                 for (n = 0, x = sources.begin(); x != sources.end(); ++x, ++n) {
 713
 714                         just_one.clear ();
 715                         just_one.push_back (*x);
 716
 717                         boost::shared_ptr<FileSource> fs = boost::dynamic_pointer_cast<FileSource> (*x);
 718
 719                         if (sources.size() > 1 && disposition == ImportDistinctChannels) {
 720
 721                                 /* generate a per-channel region name so that things work as
 722                                  * intended
 723                                  */
 724
 725                                 string path;
 726
 727                                 if (fs) {
 728                                         region_name = basename_nosuffix (fs->path());
 729                                 } else {
 730                                         region_name = (*x)->name();
 731                                 }
 732
 733                                 if (sources.size() == 2) {
 734                                         if (n == 0) {
 735                                                 region_name += "-L";
 736                                         } else {
 737                                                 region_name += "-R";
 738                                         }
 739                                 } else if (sources.size() > 2) {
 740                                         region_name += string_compose ("-%1", n+1);
 741                                 }
 742
 743                                 track_names.push_back (region_name);
 744
 745                         } else {
 746                                 if (fs) {
 747                                         region_name = region_name_from_path (fs->path(), false, false, sources.size(), n);
 748                                 } else {
 749                                         region_name = (*x)->name();
 750                                 }
 751
 752                                 track_names.push_back (PBD::basename_nosuffix (paths[n]));
 753                         }
 754
 755                         PropertyList plist;
 756
 757                         /* Fudge region length to ensure it is non-zero; make it 1 beat at 120bpm
 758                            for want of a better idea.  It can't be too small, otherwise if this
 759                            is a MIDI region the conversion from frames -> beats -> frames will
 760                            round it back down to 0 again.
 761                         */
 762                         framecnt_t len = (*x)->length (pos);
 763                         if (len == 0) {
 764                                 len = (60.0 / 120.0) * _session->frame_rate ();
 765                         }
 766
 767                         plist.add (ARDOUR::Properties::start, 0);
 768                         plist.add (ARDOUR::Properties::length, len);
 769                         plist.add (ARDOUR::Properties::name, region_name);
 770                         plist.add (ARDOUR::Properties::layer, 0);
 771                         plist.add (ARDOUR::Properties::whole_file, true);
 772                         plist.add (ARDOUR::Properties::external, true);
 773
 774                         boost::shared_ptr<Region> r = RegionFactory::create (just_one, plist);
 775
 776                         if (use_timestamp && boost::dynamic_pointer_cast<AudioRegion>(r)) {
 777                                 boost::dynamic_pointer_cast<AudioRegion>(r)->special_set_position((*x)->natural_position());
 778                         }
 779
 780                         regions.push_back (r);
 781                 }
 782         }
 783
 784         if (target_regions == 1) {
 785                 input_chan = regions.front()->n_channels();
 786         } else {
 787                 if (target_tracks == 1) {
 788                         input_chan = regions.size();
 789                 } else {
 790                         input_chan = 1;
 791                 }
 792         }
 793
 794         if (Config->get_output_auto_connect() & AutoConnectMaster) {
 795                 output_chan = (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan);
 796         } else {
 797                 output_chan = input_chan;
 798         }
 799
 800         int n = 0;
 801         framepos_t rlen = 0;
 802
 803         begin_reversible_command (Operations::insert_file);
 804
 805         /* we only use tracks names when importing to new tracks, but we
 806          * require that one is defined for every region, just to keep
 807          * the API simpler.
 808          */
 809         assert (regions.size() == track_names.size());
 810
 811         for (vector<boost::shared_ptr<Region> >::iterator r = regions.begin(); r != regions.end(); ++r, ++n) {
 812                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (*r);
 813
 814                 if (use_timestamp) {
 815                         if (ar) {
 816
 817                                 /* get timestamp for this region */
 818
 819                                 const boost::shared_ptr<Source> s (ar->sources().front());
 820                                 const boost::shared_ptr<AudioSource> as = boost::dynamic_pointer_cast<AudioSource> (s);
 821
 822                                 assert (as);
 823
 824                                 if (as->natural_position() != 0) {
 825                                         pos = as->natural_position();
 826                                 } else if (target_tracks == 1) {
 827                                         /* hmm, no timestamp available, put it after the previous region
 828                                          */
 829                                         if (n == 0) {
 830                                                 pos = get_preferred_edit_position ();
 831                                         } else {
 832                                                 pos += rlen;
 833                                         }
 834                                 } else {
 835                                         pos = get_preferred_edit_position ();
 836                                 }
 837                         } else {
 838                                 /* should really get first position in MIDI file, but for now, use edit position*/
 839                                 pos = get_preferred_edit_position ();
 840                         }
 841                 }
 842
 843                 finish_bringing_in_material (*r, input_chan, output_chan, pos, mode, track, track_names[n]);
 844
 845                 rlen = (*r)->length();
 846
 847                 if (target_tracks != 1) {
 848                         track.reset ();
 849                 } else {
 850                         if (!use_timestamp || !ar) {
 851                                 /* line each one up right after the other */
 852                                 pos += (*r)->length();
 853                         }
 854                 }
 855         }
 856
 857         commit_reversible_command ();
 858
 859         /* setup peak file building in another thread */
 860
 861         for (SourceList::iterator x = sources.begin(); x != sources.end(); ++x) {
 862                 SourceFactory::setup_peakfile (*x, true);
 863         }
 864
 865         return 0;
 866 }
 867
 868 int
 869 Editor::finish_bringing_in_material (boost::shared_ptr<Region> region, uint32_t in_chans, uint32_t out_chans, framepos_t& pos,
 870                                      ImportMode mode, boost::shared_ptr<Track>& existing_track, const string& new_track_name)
 871 {
 872         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
 873         boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(region);
 874
 875         switch (mode) {
 876         case ImportAsRegion:
 877                 /* relax, its been done */
 878                 break;
 879
 880         case ImportToTrack:
 881         {
 882                 if (!existing_track) {
 883
 884                         if (ar) {
 885                                 existing_track = get_nth_selected_audio_track (0);
 886                         } else if (mr) {
 887                                 existing_track = get_nth_selected_midi_track (0);
 888                         }
 889
 890                         if (!existing_track) {
 891                                 return -1;
 892                         }
 893                 }
 894
 895                 boost::shared_ptr<Playlist> playlist = existing_track->playlist();
 896                 boost::shared_ptr<Region> copy (RegionFactory::create (region, region->properties()));
 897                 playlist->clear_changes ();
 898                 playlist->add_region (copy, pos);
 899                 _session->add_command (new StatefulDiffCommand (playlist));
 900                 break;
 901         }
 902
 903         case ImportAsTrack:
 904         {
 905                 if (!existing_track) {
 906                         if (ar) {
 907                                 list<boost::shared_ptr<AudioTrack> > at (_session->new_audio_track (in_chans, out_chans, Normal, 0, 1));
 908
 909                                 if (at.empty()) {
 910                                         return -1;
 911                                 }
 912
 913                                 existing_track = at.front();
 914                         } else if (mr) {
 915                                 list<boost::shared_ptr<MidiTrack> > mt (_session->new_midi_track (ChanCount (DataType::MIDI, 1),
 916                                                                                                   ChanCount (DataType::MIDI, 1),
 917                                                                                                   boost::shared_ptr<PluginInfo>(),
 918                                                                                                   Normal, 0, 1));
 919
 920                                 if (mt.empty()) {
 921                                         return -1;
 922                                 }
 923
 924                                 existing_track = mt.front();
 925                         }
 926
 927                         if (!new_track_name.empty()) {
 928                                 existing_track->set_name (new_track_name);
 929                         } else {
 930                                 existing_track->set_name (region->name());
 931                         }
 932                 }
 933
 934                 boost::shared_ptr<Playlist> playlist = existing_track->playlist();
 935                 boost::shared_ptr<Region> copy (RegionFactory::create (region, true));
 936                 playlist->clear_changes ();
 937                 playlist->add_region (copy, pos);
 938                 _session->add_command (new StatefulDiffCommand (playlist));
 939                 break;
 940         }
 941
 942         case ImportAsTapeTrack:
 943         {
 944                 if (!ar) {
 945                         return -1;
 946                 }
 947
 948                 list<boost::shared_ptr<AudioTrack> > at (_session->new_audio_track (in_chans, out_chans, Destructive));
 949                 if (!at.empty()) {
 950                         boost::shared_ptr<Playlist> playlist = at.front()->playlist();
 951                         boost::shared_ptr<Region> copy (RegionFactory::create (region, true));
 952                         playlist->clear_changes ();
 953                         playlist->add_region (copy, pos);
 954                         _session->add_command (new StatefulDiffCommand (playlist));
 955                 }
 956                 break;
 957         }
 958         }
 959
 960         return 0;
 961 }
 962
 963 void *
 964 Editor::_import_thread (void *arg)
 965 {
 966         SessionEvent::create_per_thread_pool ("import events", 64);
 967
 968         Editor *ed = (Editor *) arg;
 969         return ed->import_thread ();
 970 }
 971
 972 void *
 973 Editor::import_thread ()
 974 {
 975         _session->import_files (import_status);
 976         return 0;
 977 }