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/session.h"
  37 #include "ardour/session_directory.h"
  38 #include "ardour/audioplaylist.h"
  39 #include "ardour/audioregion.h"
  40 #include "ardour/audio_diskstream.h"
  41 #include "ardour/midi_track.h"
  42 #include "ardour/midi_region.h"
  43 #include "ardour/utils.h"
  44 #include "ardour/audio_track.h"
  45 #include "ardour/audioplaylist.h"
  46 #include "ardour/audiofilesource.h"
  47 #include "ardour/region_factory.h"
  48 #include "ardour/source_factory.h"
  49 #include "ardour/session.h"
  50 #include "pbd/memento_command.h"
  51
  52 #include "ardour_ui.h"
  53 #include "editor.h"
  54 #include "sfdb_ui.h"
  55 #include "editing.h"
  56 #include "audio_time_axis.h"
  57 #include "midi_time_axis.h"
  58 #include "session_import_dialog.h"
  59 #include "utils.h"
  60 #include "gui_thread.h"
  61
  62 #include "i18n.h"
  63
  64 using namespace std;
  65 using namespace ARDOUR;
  66 using namespace PBD;
  67 using namespace Gtk;
  68 using namespace Gtkmm2ext;
  69 using namespace Editing;
  70 using Glib::ustring;
  71
  72 /* Functions supporting the incorporation of external (non-captured) audio material into ardour */
  73
  74 void
  75 Editor::add_external_audio_action (ImportMode mode_hint)
  76 {
  77         if (_session == 0) {
  78                 MessageDialog msg (_("You can't import or embed an audiofile until you have a session loaded."));
  79                 msg.run ();
  80                 return;
  81         }
  82
  83         if (sfbrowser == 0) {
  84                 sfbrowser = new SoundFileOmega (*this, _("Add Existing Media"), _session, 0, true, mode_hint);
  85         } else {
  86                 sfbrowser->set_mode (mode_hint);
  87         }
  88
  89         external_audio_dialog ();
  90 }
  91
  92 void
  93 Editor::external_audio_dialog ()
  94 {
  95         vector<Glib::ustring> paths;
  96         uint32_t 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         track_cnt = 0;
 105
 106         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
 107                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(*x);
 108
 109                 if (!atv) {
 110                         continue;
 111                 } else if (atv->is_audio_track()) {
 112                         track_cnt++;
 113                 }
 114         }
 115
 116         if (sfbrowser == 0) {
 117                 sfbrowser = new SoundFileOmega (*this, _("Add Existing Media"), _session, track_cnt, true);
 118         } else {
 119                 sfbrowser->reset (track_cnt);
 120         }
 121
 122         sfbrowser->show_all ();
 123
 124
 125         bool keepRunning;
 126
 127         do {
 128                 keepRunning = false;
 129
 130                 int response = sfbrowser->run ();
 131
 132                 switch (response) {
 133                         case RESPONSE_APPLY:
 134                                 // leave the dialog open
 135                                 break;
 136
 137                         case RESPONSE_OK:
 138                                 sfbrowser->hide ();
 139                                 break;
 140
 141                         default:
 142                                 // cancel from the browser - we are done
 143                                 sfbrowser->hide ();
 144                                 return;
 145                 }
 146
 147                 /* lets do it */
 148
 149                 paths = sfbrowser->get_paths ();
 150
 151                 ImportPosition pos = sfbrowser->get_position ();
 152                 ImportMode mode = sfbrowser->get_mode ();
 153                 ImportDisposition chns = sfbrowser->get_channel_disposition ();
 154                 nframes64_t where;
 155
 156                 switch (pos) {
 157                         case ImportAtEditPoint:
 158                                 where = get_preferred_edit_position ();
 159                                 break;
 160                         case ImportAtTimestamp:
 161                                 where = -1;
 162                                 break;
 163                         case ImportAtPlayhead:
 164                                 where = playhead_cursor->current_frame;
 165                                 break;
 166                         case ImportAtStart:
 167                                 where = _session->current_start_frame();
 168                                 break;
 169                 }
 170
 171                 SrcQuality quality = sfbrowser->get_src_quality();
 172
 173
 174                 if (sfbrowser->copy_files_btn.get_active()) {
 175                         do_import (paths, chns, mode, quality, where);
 176                 } else {
 177                         do_embed (paths, chns, mode, where);
 178                 }
 179
 180                 if (response == RESPONSE_APPLY) {
 181                         sfbrowser->clear_selection ();
 182                         keepRunning = true;
 183                 }
 184
 185         } while (keepRunning);
 186 }
 187
 188 void
 189 Editor::session_import_dialog ()
 190 {
 191         SessionImportDialog dialog (_session);
 192         ensure_float (dialog);
 193         dialog.run ();
 194 }
 195
 196 typedef std::map<PBD::ID,boost::shared_ptr<ARDOUR::Source> > SourceMap;
 197
 198 /**
 199  * Updating is still disabled, see note in libs/ardour/import.cc Session::import_audiofiles()
 200  *
 201  * all_or_nothing:
 202  *   true  = show "Update", "Import" and "Skip"
 203  *   false = show "Import", and "Cancel"
 204  *
 205  * Returns:
 206  *     0  To update an existing source of the same name
 207  *     1  To import/embed the file normally (make sure the new name will be unique)
 208  *     2  If the user wants to skip this file
 209  **/
 210 int
 211 Editor::check_whether_and_how_to_import(string path, bool all_or_nothing)
 212 {
 213         string wave_name (Glib::path_get_basename(path));
 214
 215         SourceMap all_sources = _session->get_sources();
 216         bool wave_name_exists = false;
 217
 218         for (SourceMap::iterator i = all_sources.begin(); i != all_sources.end(); ++i) {
 219                 string tmp (Glib::path_get_basename (i->second->path()));
 220                 if (tmp == wave_name) {
 221                         wave_name_exists = true;
 222                         break;
 223                 }
 224         }
 225
 226         int function = 1;
 227
 228         if (wave_name_exists) {
 229                 string message;
 230                 if (all_or_nothing) {
 231                         // updating is still disabled
 232                         //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);
 233                         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);
 234                 } else {
 235                         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);
 236
 237                 }
 238                 MessageDialog dialog(message, false, Gtk::MESSAGE_QUESTION, Gtk::BUTTONS_NONE, true);
 239
 240                 if (all_or_nothing) {
 241                         // disabled
 242                         //dialog.add_button("Update", 0);
 243                         dialog.add_button("Import", 1);
 244                         dialog.add_button("Skip",   2);
 245                 } else {
 246                         dialog.add_button("Import", 1);
 247                         dialog.add_button("Cancel", 2);
 248                 }
 249
 250                 //dialog.add_button("Skip all", 4); // All or rest?
 251
 252                 dialog.show();
 253
 254                 function = dialog.run ();
 255
 256                 dialog.hide();
 257         }
 258
 259         return function;
 260 }
 261
 262 boost::shared_ptr<AudioTrack>
 263 Editor::get_nth_selected_audio_track (int nth) const
 264 {
 265         AudioTimeAxisView* atv;
 266         TrackSelection::iterator x;
 267
 268         for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
 269
 270                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 271
 272                 if (!atv) {
 273                         continue;
 274                 } else if (atv->is_audio_track()) {
 275                         --nth;
 276                 }
 277         }
 278
 279         if (x == selection->tracks.end()) {
 280                 atv = dynamic_cast<AudioTimeAxisView*>(selection->tracks.back());
 281         } else {
 282                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 283         }
 284
 285         if (!atv || !atv->is_audio_track()) {
 286                 return boost::shared_ptr<AudioTrack>();
 287         }
 288
 289         return atv->audio_track();
 290 }
 291
 292 boost::shared_ptr<MidiTrack>
 293 Editor::get_nth_selected_midi_track (int nth) const
 294 {
 295         MidiTimeAxisView* mtv;
 296         TrackSelection::iterator x;
 297
 298         for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
 299
 300                 mtv = dynamic_cast<MidiTimeAxisView*>(*x);
 301
 302                 if (!mtv) {
 303                         continue;
 304                 } else if (mtv->is_midi_track()) {
 305                         --nth;
 306                 }
 307         }
 308
 309         if (x == selection->tracks.end()) {
 310                 mtv = dynamic_cast<MidiTimeAxisView*>(selection->tracks.back());
 311         } else {
 312                 mtv = dynamic_cast<MidiTimeAxisView*>(*x);
 313         }
 314
 315         if (!mtv || !mtv->is_midi_track()) {
 316                 return boost::shared_ptr<MidiTrack>();
 317         }
 318
 319         return mtv->midi_track();
 320 }
 321
 322 void
 323 Editor::do_import (vector<ustring> paths, ImportDisposition chns, ImportMode mode, SrcQuality quality, nframes64_t& pos)
 324 {
 325         boost::shared_ptr<Track> track;
 326         vector<ustring> to_import;
 327         int nth = 0;
 328
 329         current_interthread_info = &import_status;
 330         import_status.current = 1;
 331         import_status.total = paths.size ();
 332
 333         if (interthread_progress_window == 0) {
 334                 build_interthread_progress_window ();
 335         }
 336
 337         interthread_progress_window->set_title (_("Import"));
 338         interthread_progress_bar.set_fraction (0.0f);
 339         interthread_cancel_label.set_text (_("Cancel Import"));
 340         interthread_progress_connection = Glib::signal_timeout().connect
 341                 (sigc::bind (sigc::mem_fun(*this, &Editor::import_progress_timeout), (gpointer) 0), 500);
 342
 343         if (chns == Editing::ImportMergeFiles) {
 344
 345                 /* create 1 region from all paths, add to 1 track,
 346                    ignore "track"
 347                 */
 348
 349                 bool cancel = false;
 350                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 351                         int check = check_whether_and_how_to_import(*a, false);
 352                         if (check == 2) {
 353                                 cancel = true;
 354                                 break;
 355                         }
 356                 }
 357
 358                 if (!cancel) {
 359                         import_sndfiles (paths, mode, quality, pos, 1, 1, track, false);
 360                 }
 361
 362         } else {
 363
 364                 bool replace = false;
 365                 bool ok = true;
 366
 367                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 368
 369                         const int check = check_whether_and_how_to_import (*a, true);
 370
 371                         switch (check) {
 372                         case 2:
 373                                 // user said skip
 374                                 continue;
 375                         case 0:
 376                                 fatal << "Updating existing sources should be disabled!" << endmsg;
 377                                 /* NOTREACHED*/
 378                                 break;
 379                         case 1:
 380                                 replace = false;
 381                                 break;
 382                         default:
 383                                 fatal << "Illegal return " << check <<  " from check_whether_and_how_to_import()!" << endmsg;
 384                                 /* NOTREACHED*/
 385                         }
 386
 387                         switch (chns) {
 388                         case Editing::ImportDistinctFiles:
 389
 390                                 to_import.clear ();
 391                                 to_import.push_back (*a);
 392
 393                                 if (mode == Editing::ImportToTrack) {
 394                                         track = get_nth_selected_audio_track (nth++);
 395                                 }
 396
 397                                 ok = (import_sndfiles (to_import, mode, quality, pos, 1, -1, track, replace) == 0);
 398                                 break;
 399
 400                         case Editing::ImportDistinctChannels:
 401
 402                                 to_import.clear ();
 403                                 to_import.push_back (*a);
 404
 405                                 ok = (import_sndfiles (to_import, mode, quality, pos, -1, -1, track, replace) == 0);
 406                                 break;
 407
 408                         case Editing::ImportSerializeFiles:
 409
 410                                 to_import.clear ();
 411                                 to_import.push_back (*a);
 412
 413                                 ok = (import_sndfiles (to_import, mode, quality, pos, 1, 1, track, replace) == 0);
 414                                 break;
 415
 416                         case Editing::ImportMergeFiles:
 417                                 // Not entered, handled in earlier if() branch
 418                                 break;
 419                         }
 420                 }
 421         }
 422
 423         interthread_progress_window->hide_all ();
 424         interthread_progress_connection.disconnect ();
 425 }
 426
 427 void
 428 Editor::do_embed (vector<ustring> paths, ImportDisposition chns, ImportMode mode, nframes64_t& pos)
 429 {
 430         boost::shared_ptr<Track> track;
 431         bool check_sample_rate = true;
 432         bool ok = false;
 433         vector<ustring> to_embed;
 434         bool multi = paths.size() > 1;
 435         int nth = 0;
 436
 437         switch (chns) {
 438         case Editing::ImportDistinctFiles:
 439                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 440
 441                         to_embed.clear ();
 442                         to_embed.push_back (*a);
 443
 444                         if (mode == Editing::ImportToTrack) {
 445                                 track = get_nth_selected_audio_track (nth++);
 446                         }
 447
 448                         if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, 1, -1, track) < -1) {
 449                                 goto out;
 450                         }
 451                 }
 452                 break;
 453
 454         case Editing::ImportDistinctChannels:
 455                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 456
 457                         to_embed.clear ();
 458                         to_embed.push_back (*a);
 459
 460                         if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, -1, -1, track) < -1) {
 461                                 goto out;
 462                         }
 463                 }
 464                 break;
 465
 466         case Editing::ImportMergeFiles:
 467                 if (embed_sndfiles (paths, multi, check_sample_rate, mode, pos, 1, 1, track) < -1) {
 468                         goto out;
 469                 }
 470                 break;
 471
 472         case Editing::ImportSerializeFiles:
 473                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 474
 475                         to_embed.clear ();
 476                         to_embed.push_back (*a);
 477
 478                         if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, 1, 1, track) < -1) {
 479                                 goto out;
 480                         }
 481                 }
 482                 break;
 483         }
 484
 485         ok = true;
 486
 487   out:
 488         if (ok) {
 489                 _session->save_state ("");
 490         }
 491 }
 492
 493 int
 494 Editor::import_sndfiles (vector<ustring> paths, ImportMode mode, SrcQuality quality, nframes64_t& pos,
 495                          int target_regions, int target_tracks, boost::shared_ptr<Track>& track, bool replace)
 496 {
 497         import_status.paths = paths;
 498         import_status.done = false;
 499         import_status.cancel = false;
 500         import_status.freeze = false;
 501         import_status.done = 0.0;
 502         import_status.quality = quality;
 503         import_status.replace_existing_source = replace;
 504
 505         import_status.mode = mode;
 506         import_status.pos = pos;
 507         import_status.target_tracks = target_tracks;
 508         import_status.target_regions = target_regions;
 509         import_status.track = track;
 510         import_status.replace = replace;
 511
 512         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
 513         gdk_flush ();
 514
 515         /* start import thread for this spec. this will ultimately call Session::import_audiofiles()
 516            which, if successful, will add the files as regions to the region list. its up to us
 517            (the GUI) to direct additional steps after that.
 518         */
 519
 520         pthread_create_and_store ("import", &import_status.thread, _import_thread, this);
 521         pthread_detach (import_status.thread);
 522
 523         while (!import_status.done && !import_status.cancel) {
 524                 gtk_main_iteration ();
 525         }
 526
 527         import_status.done = true;
 528
 529         if (!import_status.cancel && !import_status.sources.empty()) {
 530                 if (add_sources (import_status.paths,
 531                                  import_status.sources,
 532                                  import_status.pos,
 533                                  import_status.mode,
 534                                  import_status.target_regions,
 535                                  import_status.target_tracks,
 536                                  track, false) == 0) {
 537                         _session->save_state ("");
 538                 }
 539
 540                 /* update position from results */
 541
 542                 pos = import_status.pos;
 543         }
 544
 545
 546         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
 547         return 0;
 548 }
 549
 550 int
 551 Editor::embed_sndfiles (vector<Glib::ustring> paths, bool multifile,
 552                         bool& check_sample_rate, ImportMode mode, nframes64_t& pos, int target_regions, int target_tracks,
 553                         boost::shared_ptr<Track>& track)
 554 {
 555         boost::shared_ptr<AudioFileSource> source;
 556         SourceList sources;
 557         string linked_path;
 558         SoundFileInfo finfo;
 559         int ret = 0;
 560         Glib::ustring path_to_use;
 561
 562         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
 563         gdk_flush ();
 564
 565         for (vector<Glib::ustring>::iterator p = paths.begin(); p != paths.end(); ++p) {
 566
 567                 ustring path = *p;
 568
 569                 if (Config->get_try_link_for_embed()) {
 570
 571                         /* lets see if we can link it into the session */
 572
 573                         sys::path tmp = _session->session_directory().sound_path() / Glib::path_get_basename(path);
 574                         linked_path = tmp.to_string();
 575
 576                         path_to_use = linked_path;
 577
 578                         if (link (path.c_str(), linked_path.c_str()) == 0) {
 579
 580                                 /* there are many reasons why link(2) might have failed.
 581                                    but if it succeeds, we now have a link in the
 582                                    session sound dir that will protect against
 583                                    unlinking of the original path. nice.
 584                                 */
 585
 586                                 path = linked_path;
 587                                 path_to_use = Glib::path_get_basename (path);
 588
 589                         } else {
 590
 591                                 /* one possible reason is that its already linked */
 592
 593                                 if (errno == EEXIST) {
 594                                         struct stat sb;
 595
 596                                         if (stat (linked_path.c_str(), &sb) == 0) {
 597                                                 if (sb.st_nlink > 1) { // its a hard link, assume its the one we want
 598                                                         path = linked_path;
 599                                                         path_to_use = Glib::path_get_basename (path);
 600                                                 }
 601                                         }
 602                                 }
 603                         }
 604                 }
 605
 606                 /* note that we temporarily truncated _id at the colon */
 607
 608                 string error_msg;
 609
 610                 if (!AudioFileSource::get_soundfile_info (path, finfo, error_msg)) {
 611                         error << string_compose(_("Editor: cannot open file \"%1\", (%2)"), path, error_msg ) << endmsg;
 612                         goto out;
 613                 }
 614
 615                 if (check_sample_rate  && (finfo.samplerate != (int) _session->frame_rate())) {
 616                         vector<string> choices;
 617
 618                         if (multifile) {
 619                                 choices.push_back (_("Cancel entire import"));
 620                                 choices.push_back (_("Don't embed it"));
 621                                 choices.push_back (_("Embed all without questions"));
 622
 623                                 Gtkmm2ext::Choice rate_choice (
 624                                         _("Sample rate"),
 625                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"),
 626                                                         short_path (path, 40)),
 627                                         choices, false
 628                                         );
 629
 630                                 int resx = rate_choice.run ();
 631
 632                                 switch (resx) {
 633                                 case 0: /* stop a multi-file import */
 634                                         ret = -2;
 635                                         goto out;
 636                                 case 1: /* don't embed this one */
 637                                         ret = -1;
 638                                         goto out;
 639                                 case 2: /* do it, and the rest without asking */
 640                                         check_sample_rate = false;
 641                                         break;
 642                                 case 3: /* do it */
 643                                         break;
 644                                 default:
 645                                         ret = -2;
 646                                         goto out;
 647                                 }
 648                         } else {
 649                                 choices.push_back (_("Cancel"));
 650                                 choices.push_back (_("Embed it anyway"));
 651
 652                                 Gtkmm2ext::Choice rate_choice (
 653                                         _("Sample rate"),
 654                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"), path),
 655                                         choices, false
 656                                         );
 657
 658                                 int resx = rate_choice.run ();
 659
 660                                 switch (resx) {
 661                                 case 0: /* don't import */
 662                                         ret = -1;
 663                                         goto out;
 664                                 case 1: /* do it */
 665                                         break;
 666                                 default:
 667                                         ret = -2;
 668                                         goto out;
 669                                 }
 670                         }
 671                 }
 672
 673                 track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
 674
 675                 for (int n = 0; n < finfo.channels; ++n) {
 676                         try {
 677
 678                                 /* check if we have this thing embedded already */
 679
 680                                 boost::shared_ptr<Source> s;
 681
 682                                 if ((s = _session->source_by_path_and_channel (path, n)) == 0) {
 683
 684                                         source = boost::dynamic_pointer_cast<AudioFileSource> (
 685                                                 SourceFactory::createReadable (DataType::AUDIO, *_session,
 686                                                                                path_to_use, n,
 687                                                                                (mode == ImportAsTapeTrack
 688                                                                                 ? Source::Destructive
 689                                                                                 : Source::Flag (0)),
 690                                                                         true, true));
 691                                 } else {
 692                                         source = boost::dynamic_pointer_cast<AudioFileSource> (s);
 693                                 }
 694
 695                                 sources.push_back(source);
 696                         }
 697
 698                         catch (failed_constructor& err) {
 699                                 error << string_compose(_("could not open %1"), path) << endmsg;
 700                                 goto out;
 701                         }
 702
 703                         ARDOUR_UI::instance()->flush_pending ();
 704                 }
 705         }
 706
 707         if (sources.empty()) {
 708                 goto out;
 709         }
 710
 711         ret = add_sources (paths, sources, pos, mode, target_regions, target_tracks, track, true);
 712
 713   out:
 714         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
 715         return ret;
 716 }
 717
 718 int
 719 Editor::add_sources (vector<Glib::ustring> paths, SourceList& sources, nframes64_t& pos, ImportMode mode,
 720                      int target_regions, int target_tracks, boost::shared_ptr<Track>& track, bool /*add_channel_suffix*/)
 721 {
 722         vector<boost::shared_ptr<Region> > regions;
 723         ustring region_name;
 724         uint32_t input_chan = 0;
 725         uint32_t output_chan = 0;
 726         bool use_timestamp;
 727
 728         use_timestamp = (pos == -1);
 729
 730         if (use_timestamp) {
 731                 if (sources[0]->natural_position() != 0) {
 732                         pos = sources[0]->natural_position();
 733                 } else {
 734                         pos = get_preferred_edit_position ();
 735                 }
 736         }
 737
 738         // kludge (for MIDI we're abusing "channel" for "track" here)
 739         if (paths.front().rfind(".mid") != Glib::ustring::npos)
 740                 target_regions = -1;
 741
 742         if (target_regions == 1) {
 743
 744                 /* take all the sources we have and package them up as a region */
 745
 746                 region_name = region_name_from_path (paths.front(), (sources.size() > 1), false);
 747
 748                 PropertyList plist;
 749
 750                 plist.add (ARDOUR::Properties::start, 0);
 751                 plist.add (ARDOUR::Properties::length, sources[0]->length (pos));
 752                 plist.add (ARDOUR::Properties::name, region_name);
 753                 plist.add (ARDOUR::Properties::layer, 0);
 754                 plist.add (ARDOUR::Properties::whole_file, true);
 755                 plist.add (ARDOUR::Properties::external, true);
 756
 757                 boost::shared_ptr<Region> r = RegionFactory::create (sources, plist);
 758
 759                 if (use_timestamp && boost::dynamic_pointer_cast<AudioRegion>(r)) {
 760                         boost::dynamic_pointer_cast<AudioRegion>(r)->special_set_position(sources[0]->natural_position());
 761                 }
 762
 763                 regions.push_back (r);
 764
 765
 766         } else if (target_regions == -1 || target_regions > 1) {
 767
 768                 /* take each source and create a region for each one */
 769
 770                 SourceList just_one;
 771                 SourceList::iterator x;
 772                 uint32_t n;
 773
 774                 for (n = 0, x = sources.begin(); x != sources.end(); ++x, ++n) {
 775
 776                         just_one.clear ();
 777                         just_one.push_back (*x);
 778
 779                         region_name = region_name_from_path ((*x)->path(), false, false, sources.size(), n);
 780
 781                         PropertyList plist;
 782
 783                         plist.add (ARDOUR::Properties::start, 0);
 784                         plist.add (ARDOUR::Properties::length, (*x)->length (pos));
 785                         plist.add (ARDOUR::Properties::name, region_name);
 786                         plist.add (ARDOUR::Properties::layer, 0);
 787                         plist.add (ARDOUR::Properties::whole_file, true);
 788                         plist.add (ARDOUR::Properties::external, true);
 789
 790                         boost::shared_ptr<Region> r = RegionFactory::create (just_one, plist);
 791
 792                         if (use_timestamp && boost::dynamic_pointer_cast<AudioRegion>(r)) {
 793                                 boost::dynamic_pointer_cast<AudioRegion>(r)->special_set_position((*x)->natural_position());
 794                         }
 795
 796                         regions.push_back (r);
 797                 }
 798         }
 799
 800         if (target_regions == 1) {
 801                 input_chan = regions.front()->n_channels();
 802         } else {
 803                 if (target_tracks == 1) {
 804                         input_chan = regions.size();
 805                 } else {
 806                         input_chan = 1;
 807                 }
 808         }
 809
 810         if (Config->get_output_auto_connect() & AutoConnectMaster) {
 811                 output_chan = (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan);
 812         } else {
 813                 output_chan = input_chan;
 814         }
 815
 816         int n = 0;
 817
 818         for (vector<boost::shared_ptr<Region> >::iterator r = regions.begin(); r != regions.end(); ++r, ++n) {
 819
 820                 finish_bringing_in_material (*r, input_chan, output_chan, pos, mode, track);
 821
 822                 if (target_tracks != 1) {
 823                         track.reset ();
 824                 } else {
 825                         pos += (*r)->length();
 826                 }
 827         }
 828
 829         /* setup peak file building in another thread */
 830
 831         for (SourceList::iterator x = sources.begin(); x != sources.end(); ++x) {
 832                 SourceFactory::setup_peakfile (*x, true);
 833         }
 834
 835         return 0;
 836 }
 837
 838 int
 839 Editor::finish_bringing_in_material (boost::shared_ptr<Region> region, uint32_t in_chans, uint32_t out_chans, nframes64_t& pos,
 840                                   ImportMode mode, boost::shared_ptr<Track>& existing_track)
 841 {
 842         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
 843         boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(region);
 844
 845         switch (mode) {
 846         case ImportAsRegion:
 847                 /* relax, its been done */
 848                 break;
 849
 850         case ImportToTrack:
 851         {
 852                 if (!existing_track) {
 853
 854                         if (ar) {
 855                                 existing_track = get_nth_selected_audio_track (0);
 856                         } else if (mr) {
 857                                 existing_track = get_nth_selected_midi_track (0);
 858                         }
 859
 860                         if (!existing_track) {
 861                                 return -1;
 862                         }
 863                 }
 864
 865                 boost::shared_ptr<Playlist> playlist = existing_track->diskstream()->playlist();
 866                 boost::shared_ptr<Region> copy (RegionFactory::create (region, region->properties()));
 867                 begin_reversible_command (_("insert file"));
 868                 playlist->clear_history ();
 869                 playlist->add_region (copy, pos);
 870                 _session->add_command (new StatefulDiffCommand (playlist));
 871                 commit_reversible_command ();
 872                 break;
 873         }
 874
 875         case ImportAsTrack:
 876         {
 877                 if (!existing_track) {
 878                         if (ar) {
 879                                 list<boost::shared_ptr<AudioTrack> > at (_session->new_audio_track (in_chans, out_chans, Normal, 0, 1));
 880
 881                                 if (at.empty()) {
 882                                         return -1;
 883                                 }
 884
 885                                 existing_track = at.front();
 886                         } else if (mr) {
 887                                 list<boost::shared_ptr<MidiTrack> > mt (_session->new_midi_track (Normal, 0, 1));
 888
 889                                 if (mt.empty()) {
 890                                         return -1;
 891                                 }
 892
 893                                 existing_track = mt.front();
 894                         }
 895
 896                         existing_track->set_name (region->name());
 897                 }
 898
 899                 boost::shared_ptr<Region> copy (RegionFactory::create (region));
 900                 existing_track->diskstream()->playlist()->add_region (copy, pos);
 901                 break;
 902         }
 903
 904
 905         case ImportAsTapeTrack:
 906         {
 907                 if (!ar)
 908                         return -1;
 909
 910                 list<boost::shared_ptr<AudioTrack> > at (_session->new_audio_track (in_chans, out_chans, Destructive));
 911                 if (!at.empty()) {
 912                         boost::shared_ptr<Region> copy (RegionFactory::create (region));
 913                         at.front()->set_name (basename_nosuffix (copy->name()));
 914                         at.front()->diskstream()->playlist()->add_region (copy, pos);
 915                 }
 916                 break;
 917         }
 918         }
 919
 920         return 0;
 921 }
 922
 923 void *
 924 Editor::_import_thread (void *arg)
 925 {
 926         SessionEvent::create_per_thread_pool ("import events", 64);
 927
 928         Editor *ed = (Editor *) arg;
 929         return ed->import_thread ();
 930 }
 931
 932 void *
 933 Editor::import_thread ()
 934 {
 935         _session->import_audiofiles (import_status);
 936         pthread_exit_pbd (0);
 937         /*NOTREACHED*/
 938         return 0;
 939 }
 940
 941 gint
 942 Editor::import_progress_timeout (void */*arg*/)
 943 {
 944         bool reset = false;
 945
 946         if (!interthread_progress_window->is_visible()) {
 947                 interthread_progress_window->show_all ();
 948                 reset = true;
 949         }
 950
 951         interthread_progress_label.set_markup (import_status.doing_what);
 952
 953         if (import_status.freeze) {
 954                 interthread_cancel_button.set_sensitive(false);
 955         } else {
 956                 interthread_cancel_button.set_sensitive(true);
 957         }
 958
 959         if (import_status.doing_what == "building peak files") {
 960                 interthread_progress_bar.pulse ();
 961                 return FALSE;
 962         } else {
 963                 float val = import_status.progress;
 964                 interthread_progress_bar.set_fraction (min (max (0.0f, val), 1.0f));
 965         }
 966
 967         if (reset) {
 968
 969                 /* the window is now visible, speed up the updates */
 970
 971                 interthread_progress_connection.disconnect ();
 972                 interthread_progress_connection = Glib::signal_timeout().connect
 973                         (sigc::bind (sigc::mem_fun(*this, &Editor::import_progress_timeout), (gpointer) 0), 100);
 974                 return false;
 975         } else {
 976                 return !(import_status.done || import_status.cancel);
 977         }
 978 }
 979