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 <glibmm/ustring.h>
  28
  29 #include <sndfile.h>
  30
  31 #include "pbd/pthread_utils.h"
  32 #include "pbd/basename.h"
  33 #include "pbd/shortpath.h"
  34 #include "pbd/stateful_diff_command.h"
  35
  36 #include <gtkmm2ext/choice.h>
  37
  38 #include "ardour/session.h"
  39 #include "ardour/session_directory.h"
  40 #include "ardour/audioplaylist.h"
  41 #include "ardour/audioregion.h"
  42 #include "ardour/audio_diskstream.h"
  43 #include "ardour/midi_track.h"
  44 #include "ardour/midi_region.h"
  45 #include "ardour/utils.h"
  46 #include "ardour/audio_track.h"
  47 #include "ardour/audioplaylist.h"
  48 #include "ardour/audiofilesource.h"
  49 #include "ardour/region_factory.h"
  50 #include "ardour/source_factory.h"
  51 #include "ardour/session.h"
  52 #include "ardour/smf_source.h"
  53 #include "pbd/memento_command.h"
  54
  55 #include "ardour_ui.h"
  56 #include "editor.h"
  57 #include "sfdb_ui.h"
  58 #include "editing.h"
  59 #include "audio_time_axis.h"
  60 #include "midi_time_axis.h"
  61 #include "session_import_dialog.h"
  62 #include "utils.h"
  63 #include "gui_thread.h"
  64 #include "interthread_progress_window.h"
  65
  66 #include "i18n.h"
  67
  68 using namespace std;
  69 using namespace ARDOUR;
  70 using namespace PBD;
  71 using namespace Gtk;
  72 using namespace Gtkmm2ext;
  73 using namespace Editing;
  74 using Glib::ustring;
  75
  76 /* Functions supporting the incorporation of external (non-captured) audio material into ardour */
  77
  78 void
  79 Editor::add_external_audio_action (ImportMode mode_hint)
  80 {
  81         if (_session == 0) {
  82                 MessageDialog msg (_("You can't import or embed an audiofile until you have a session loaded."));
  83                 msg.run ();
  84                 return;
  85         }
  86
  87         if (sfbrowser == 0) {
  88                 sfbrowser = new SoundFileOmega (*this, _("Add Existing Media"), _session, 0, true, mode_hint);
  89         } else {
  90                 sfbrowser->set_mode (mode_hint);
  91         }
  92
  93         external_audio_dialog ();
  94 }
  95
  96 void
  97 Editor::external_audio_dialog ()
  98 {
  99         vector<string> paths;
 100         uint32_t track_cnt;
 101
 102         if (_session == 0) {
 103                 MessageDialog msg (_("You can't import or embed an audiofile until you have a session loaded."));
 104                 msg.run ();
 105                 return;
 106         }
 107
 108         track_cnt = 0;
 109
 110         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
 111                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(*x);
 112
 113                 if (!atv) {
 114                         continue;
 115                 } else if (atv->is_audio_track()) {
 116                         track_cnt++;
 117                 }
 118         }
 119
 120         if (sfbrowser == 0) {
 121                 sfbrowser = new SoundFileOmega (*this, _("Add Existing Media"), _session, track_cnt, true);
 122         } else {
 123                 sfbrowser->reset (track_cnt);
 124         }
 125
 126         sfbrowser->show_all ();
 127
 128
 129         bool keepRunning;
 130
 131         do {
 132                 keepRunning = false;
 133
 134                 int response = sfbrowser->run ();
 135
 136                 switch (response) {
 137                         case RESPONSE_APPLY:
 138                                 // leave the dialog open
 139                                 break;
 140
 141                         case RESPONSE_OK:
 142                                 sfbrowser->hide ();
 143                                 break;
 144
 145                         default:
 146                                 // cancel from the browser - we are done
 147                                 sfbrowser->hide ();
 148                                 return;
 149                 }
 150
 151                 /* lets do it */
 152
 153                 vector<ustring> upaths = sfbrowser->get_paths ();
 154                 for (vector<ustring>::iterator x = upaths.begin(); x != upaths.end(); ++x) {
 155                         paths.push_back (*x);
 156                 }
 157
 158                 ImportPosition pos = sfbrowser->get_position ();
 159                 ImportMode mode = sfbrowser->get_mode ();
 160                 ImportDisposition chns = sfbrowser->get_channel_disposition ();
 161                 nframes64_t where;
 162
 163                 switch (pos) {
 164                         case ImportAtEditPoint:
 165                                 where = get_preferred_edit_position ();
 166                                 break;
 167                         case ImportAtTimestamp:
 168                                 where = -1;
 169                                 break;
 170                         case ImportAtPlayhead:
 171                                 where = playhead_cursor->current_frame;
 172                                 break;
 173                         case ImportAtStart:
 174                                 where = _session->current_start_frame();
 175                                 break;
 176                 }
 177
 178                 SrcQuality quality = sfbrowser->get_src_quality();
 179
 180
 181                 if (sfbrowser->copy_files_btn.get_active()) {
 182                         do_import (paths, chns, mode, quality, where);
 183                 } else {
 184                         do_embed (paths, chns, mode, where);
 185                 }
 186
 187                 if (response == RESPONSE_APPLY) {
 188                         sfbrowser->clear_selection ();
 189                         keepRunning = true;
 190                 }
 191
 192         } while (keepRunning);
 193 }
 194
 195 void
 196 Editor::session_import_dialog ()
 197 {
 198         SessionImportDialog dialog (_session);
 199         ensure_float (dialog);
 200         dialog.run ();
 201 }
 202
 203 typedef std::map<PBD::ID,boost::shared_ptr<ARDOUR::Source> > SourceMap;
 204
 205 /**
 206  * Updating is still disabled, see note in libs/ardour/import.cc Session::import_audiofiles()
 207  *
 208  * all_or_nothing:
 209  *   true  = show "Update", "Import" and "Skip"
 210  *   false = show "Import", and "Cancel"
 211  *
 212  * Returns:
 213  *     0  To update an existing source of the same name
 214  *     1  To import/embed the file normally (make sure the new name will be unique)
 215  *     2  If the user wants to skip this file
 216  **/
 217 int
 218 Editor::check_whether_and_how_to_import(string path, bool all_or_nothing)
 219 {
 220         string wave_name (Glib::path_get_basename(path));
 221
 222         SourceMap all_sources = _session->get_sources();
 223         bool wave_name_exists = false;
 224
 225         for (SourceMap::iterator i = all_sources.begin(); i != all_sources.end(); ++i) {
 226                 string tmp (Glib::path_get_basename (i->second->path()));
 227                 if (tmp == wave_name) {
 228                         wave_name_exists = true;
 229                         break;
 230                 }
 231         }
 232
 233         int function = 1;
 234
 235         if (wave_name_exists) {
 236                 string message;
 237                 if (all_or_nothing) {
 238                         // updating is still disabled
 239                         //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);
 240                         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);
 241                 } else {
 242                         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);
 243
 244                 }
 245                 MessageDialog dialog(message, false, Gtk::MESSAGE_QUESTION, Gtk::BUTTONS_NONE, true);
 246
 247                 if (all_or_nothing) {
 248                         // disabled
 249                         //dialog.add_button("Update", 0);
 250                         dialog.add_button("Import", 1);
 251                         dialog.add_button("Skip",   2);
 252                 } else {
 253                         dialog.add_button("Import", 1);
 254                         dialog.add_button("Cancel", 2);
 255                 }
 256
 257                 //dialog.add_button("Skip all", 4); // All or rest?
 258
 259                 dialog.show();
 260
 261                 function = dialog.run ();
 262
 263                 dialog.hide();
 264         }
 265
 266         return function;
 267 }
 268
 269 boost::shared_ptr<AudioTrack>
 270 Editor::get_nth_selected_audio_track (int nth) const
 271 {
 272         AudioTimeAxisView* atv;
 273         TrackSelection::iterator x;
 274
 275         for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
 276
 277                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 278
 279                 if (!atv) {
 280                         continue;
 281                 } else if (atv->is_audio_track()) {
 282                         --nth;
 283                 }
 284         }
 285
 286         if (x == selection->tracks.end()) {
 287                 atv = dynamic_cast<AudioTimeAxisView*>(selection->tracks.back());
 288         } else {
 289                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 290         }
 291
 292         if (!atv || !atv->is_audio_track()) {
 293                 return boost::shared_ptr<AudioTrack>();
 294         }
 295
 296         return atv->audio_track();
 297 }
 298
 299 boost::shared_ptr<MidiTrack>
 300 Editor::get_nth_selected_midi_track (int nth) const
 301 {
 302         MidiTimeAxisView* mtv;
 303         TrackSelection::iterator x;
 304
 305         for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
 306
 307                 mtv = dynamic_cast<MidiTimeAxisView*>(*x);
 308
 309                 if (!mtv) {
 310                         continue;
 311                 } else if (mtv->is_midi_track()) {
 312                         --nth;
 313                 }
 314         }
 315
 316         if (x == selection->tracks.end()) {
 317                 mtv = dynamic_cast<MidiTimeAxisView*>(selection->tracks.back());
 318         } else {
 319                 mtv = dynamic_cast<MidiTimeAxisView*>(*x);
 320         }
 321
 322         if (!mtv || !mtv->is_midi_track()) {
 323                 return boost::shared_ptr<MidiTrack>();
 324         }
 325
 326         return mtv->midi_track();
 327 }
 328
 329 void
 330 Editor::do_import (vector<string> paths, ImportDisposition chns, ImportMode mode, SrcQuality quality, nframes64_t& pos)
 331 {
 332         boost::shared_ptr<Track> track;
 333         vector<string> to_import;
 334         int nth = 0;
 335         bool use_timestamp = (pos == -1);
 336
 337         current_interthread_info = &import_status;
 338         import_status.current = 1;
 339         import_status.total = paths.size ();
 340
 341         ImportProgressWindow ipw (&import_status, _("Import"), _("Cancel Import"));
 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<string>::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<string>::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                         /* have to reset this for every file we handle */
 388
 389                         if (use_timestamp) {
 390                                 pos = -1;
 391                         }
 392
 393                         switch (chns) {
 394                         case Editing::ImportDistinctFiles:
 395
 396                                 to_import.clear ();
 397                                 to_import.push_back (*a);
 398
 399                                 if (mode == Editing::ImportToTrack) {
 400                                         track = get_nth_selected_audio_track (nth++);
 401                                 }
 402
 403                                 ok = (import_sndfiles (to_import, mode, quality, pos, 1, -1, track, replace) == 0);
 404                                 break;
 405
 406                         case Editing::ImportDistinctChannels:
 407
 408                                 to_import.clear ();
 409                                 to_import.push_back (*a);
 410
 411                                 ok = (import_sndfiles (to_import, mode, quality, pos, -1, -1, track, replace) == 0);
 412                                 break;
 413
 414                         case Editing::ImportSerializeFiles:
 415
 416                                 to_import.clear ();
 417                                 to_import.push_back (*a);
 418
 419                                 ok = (import_sndfiles (to_import, mode, quality, pos, 1, 1, track, replace) == 0);
 420                                 break;
 421
 422                         case Editing::ImportMergeFiles:
 423                                 // Not entered, handled in earlier if() branch
 424                                 break;
 425                         }
 426                 }
 427         }
 428 }
 429
 430 void
 431 Editor::do_embed (vector<string> paths, ImportDisposition chns, ImportMode mode, nframes64_t& pos)
 432 {
 433         boost::shared_ptr<Track> track;
 434         bool check_sample_rate = true;
 435         bool ok = false;
 436         vector<string> to_embed;
 437         bool multi = paths.size() > 1;
 438         int nth = 0;
 439
 440         switch (chns) {
 441         case Editing::ImportDistinctFiles:
 442                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 443
 444                         to_embed.clear ();
 445                         to_embed.push_back (*a);
 446
 447                         if (mode == Editing::ImportToTrack) {
 448                                 track = get_nth_selected_audio_track (nth++);
 449                         }
 450
 451                         if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, 1, -1, track) < -1) {
 452                                 goto out;
 453                         }
 454                 }
 455                 break;
 456
 457         case Editing::ImportDistinctChannels:
 458                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 459
 460                         to_embed.clear ();
 461                         to_embed.push_back (*a);
 462
 463                         if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, -1, -1, track) < -1) {
 464                                 goto out;
 465                         }
 466                 }
 467                 break;
 468
 469         case Editing::ImportMergeFiles:
 470                 if (embed_sndfiles (paths, multi, check_sample_rate, mode, pos, 1, 1, track) < -1) {
 471                         goto out;
 472                 }
 473                 break;
 474
 475         case Editing::ImportSerializeFiles:
 476                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 477
 478                         to_embed.clear ();
 479                         to_embed.push_back (*a);
 480
 481                         if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, 1, 1, track) < -1) {
 482                                 goto out;
 483                         }
 484                 }
 485                 break;
 486         }
 487
 488         ok = true;
 489
 490   out:
 491         if (ok) {
 492                 _session->save_state ("");
 493         }
 494 }
 495
 496 int
 497 Editor::import_sndfiles (vector<string> paths, ImportMode mode, SrcQuality quality, nframes64_t& pos,
 498                          int target_regions, int target_tracks, boost::shared_ptr<Track>& track, bool replace)
 499 {
 500         import_status.paths = paths;
 501         import_status.done = false;
 502         import_status.cancel = false;
 503         import_status.freeze = false;
 504         import_status.done = 0.0;
 505         import_status.quality = quality;
 506         import_status.replace_existing_source = replace;
 507
 508         import_status.mode = mode;
 509         import_status.pos = pos;
 510         import_status.target_tracks = target_tracks;
 511         import_status.target_regions = target_regions;
 512         import_status.track = track;
 513         import_status.replace = replace;
 514
 515         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
 516         gdk_flush ();
 517
 518         /* start import thread for this spec. this will ultimately call Session::import_audiofiles()
 519            which, if successful, will add the files as regions to the region list. its up to us
 520            (the GUI) to direct additional steps after that.
 521         */
 522
 523         pthread_create_and_store ("import", &import_status.thread, _import_thread, this);
 524         pthread_detach (import_status.thread);
 525
 526         while (!import_status.done && !import_status.cancel) {
 527                 gtk_main_iteration ();
 528         }
 529
 530         import_status.done = true;
 531
 532         if (!import_status.cancel && !import_status.sources.empty()) {
 533                 if (add_sources (import_status.paths,
 534                                  import_status.sources,
 535                                  import_status.pos,
 536                                  import_status.mode,
 537                                  import_status.target_regions,
 538                                  import_status.target_tracks,
 539                                  track, false) == 0) {
 540                         _session->save_state ("");
 541                 }
 542
 543                 /* update position from results */
 544
 545                 pos = import_status.pos;
 546         }
 547
 548
 549         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
 550         return 0;
 551 }
 552
 553 int
 554 Editor::embed_sndfiles (vector<string> paths, bool multifile,
 555                         bool& check_sample_rate, ImportMode mode, nframes64_t& pos, int target_regions, int target_tracks,
 556                         boost::shared_ptr<Track>& track)
 557 {
 558         boost::shared_ptr<AudioFileSource> source;
 559         SourceList sources;
 560         string linked_path;
 561         SoundFileInfo finfo;
 562         int ret = 0;
 563         string path_to_use;
 564
 565         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
 566         gdk_flush ();
 567
 568         for (vector<string>::iterator p = paths.begin(); p != paths.end(); ++p) {
 569
 570                 string path = *p;
 571
 572                 if (Config->get_try_link_for_embed()) {
 573
 574                         /* lets see if we can link it into the session */
 575
 576                         sys::path tmp = _session->session_directory().sound_path() / Glib::path_get_basename(path);
 577                         linked_path = tmp.to_string();
 578
 579                         path_to_use = linked_path;
 580
 581                         if (link (path.c_str(), linked_path.c_str()) == 0) {
 582
 583                                 /* there are many reasons why link(2) might have failed.
 584                                    but if it succeeds, we now have a link in the
 585                                    session sound dir that will protect against
 586                                    unlinking of the original path. nice.
 587                                 */
 588
 589                                 path = linked_path;
 590                                 path_to_use = Glib::path_get_basename (path);
 591
 592                         } else {
 593
 594                                 /* one possible reason is that its already linked */
 595
 596                                 if (errno == EEXIST) {
 597                                         struct stat sb;
 598
 599                                         if (stat (linked_path.c_str(), &sb) == 0) {
 600                                                 if (sb.st_nlink > 1) { // its a hard link, assume its the one we want
 601                                                         path = linked_path;
 602                                                         path_to_use = Glib::path_get_basename (path);
 603                                                 }
 604                                         }
 605                                 }
 606                         }
 607                 }
 608
 609                 /* note that we temporarily truncated _id at the colon */
 610
 611                 string error_msg;
 612
 613                 if (!AudioFileSource::get_soundfile_info (path, finfo, error_msg)) {
 614                         error << string_compose(_("Editor: cannot open file \"%1\", (%2)"), path, error_msg ) << endmsg;
 615                         goto out;
 616                 }
 617
 618                 if (check_sample_rate  && (finfo.samplerate != (int) _session->frame_rate())) {
 619                         vector<string> choices;
 620
 621                         if (multifile) {
 622                                 choices.push_back (_("Cancel entire import"));
 623                                 choices.push_back (_("Don't embed it"));
 624                                 choices.push_back (_("Embed all without questions"));
 625
 626                                 Gtkmm2ext::Choice rate_choice (
 627                                         _("Sample rate"),
 628                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"),
 629                                                         short_path (path, 40)),
 630                                         choices, false
 631                                         );
 632
 633                                 int resx = rate_choice.run ();
 634
 635                                 switch (resx) {
 636                                 case 0: /* stop a multi-file import */
 637                                         ret = -2;
 638                                         goto out;
 639                                 case 1: /* don't embed this one */
 640                                         ret = -1;
 641                                         goto out;
 642                                 case 2: /* do it, and the rest without asking */
 643                                         check_sample_rate = false;
 644                                         break;
 645                                 case 3: /* do it */
 646                                         break;
 647                                 default:
 648                                         ret = -2;
 649                                         goto out;
 650                                 }
 651                         } else {
 652                                 choices.push_back (_("Cancel"));
 653                                 choices.push_back (_("Embed it anyway"));
 654
 655                                 Gtkmm2ext::Choice rate_choice (
 656                                         _("Sample rate"),
 657                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"), path),
 658                                         choices, false
 659                                         );
 660
 661                                 int resx = rate_choice.run ();
 662
 663                                 switch (resx) {
 664                                 case 0: /* don't import */
 665                                         ret = -1;
 666                                         goto out;
 667                                 case 1: /* do it */
 668                                         break;
 669                                 default:
 670                                         ret = -2;
 671                                         goto out;
 672                                 }
 673                         }
 674                 }
 675
 676                 track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
 677
 678                 for (int n = 0; n < finfo.channels; ++n) {
 679                         try {
 680
 681                                 /* check if we have this thing embedded already */
 682
 683                                 boost::shared_ptr<Source> s;
 684
 685                                 if ((s = _session->source_by_path_and_channel (path, n)) == 0) {
 686
 687                                         source = boost::dynamic_pointer_cast<AudioFileSource> (
 688                                                 SourceFactory::createReadable (DataType::AUDIO, *_session,
 689                                                                                path_to_use, n,
 690                                                                                (mode == ImportAsTapeTrack
 691                                                                                 ? Source::Destructive
 692                                                                                 : Source::Flag (0)),
 693                                                                         true, true));
 694                                 } else {
 695                                         source = boost::dynamic_pointer_cast<AudioFileSource> (s);
 696                                 }
 697
 698                                 sources.push_back(source);
 699                         }
 700
 701                         catch (failed_constructor& err) {
 702                                 error << string_compose(_("could not open %1"), path) << endmsg;
 703                                 goto out;
 704                         }
 705
 706                         ARDOUR_UI::instance()->flush_pending ();
 707                 }
 708         }
 709
 710         if (sources.empty()) {
 711                 goto out;
 712         }
 713
 714         ret = add_sources (paths, sources, pos, mode, target_regions, target_tracks, track, true);
 715
 716   out:
 717         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
 718         return ret;
 719 }
 720
 721 int
 722 Editor::add_sources (vector<string> paths, SourceList& sources, nframes64_t& pos, ImportMode mode,
 723                      int target_regions, int target_tracks, boost::shared_ptr<Track>& track, bool /*add_channel_suffix*/)
 724 {
 725         vector<boost::shared_ptr<Region> > regions;
 726         string region_name;
 727         uint32_t input_chan = 0;
 728         uint32_t output_chan = 0;
 729         bool use_timestamp;
 730
 731         use_timestamp = (pos == -1);
 732
 733         // kludge (for MIDI we're abusing "channel" for "track" here)
 734         if (SMFSource::safe_midi_file_extension (paths.front())) {
 735                 target_regions = -1;
 736         }
 737
 738         if (target_regions == 1) {
 739
 740                 /* take all the sources we have and package them up as a region */
 741
 742                 region_name = region_name_from_path (paths.front(), (sources.size() > 1), false);
 743
 744                 PropertyList plist;
 745
 746                 plist.add (ARDOUR::Properties::start, 0);
 747                 plist.add (ARDOUR::Properties::length, sources[0]->length (pos));
 748                 plist.add (ARDOUR::Properties::name, region_name);
 749                 plist.add (ARDOUR::Properties::layer, 0);
 750                 plist.add (ARDOUR::Properties::whole_file, true);
 751                 plist.add (ARDOUR::Properties::external, true);
 752
 753                 boost::shared_ptr<Region> r = RegionFactory::create (sources, plist);
 754
 755                 if (use_timestamp && boost::dynamic_pointer_cast<AudioRegion>(r)) {
 756                         boost::dynamic_pointer_cast<AudioRegion>(r)->special_set_position(sources[0]->natural_position());
 757                 }
 758
 759                 regions.push_back (r);
 760
 761
 762         } else if (target_regions == -1 || target_regions > 1) {
 763
 764                 /* take each source and create a region for each one */
 765
 766                 SourceList just_one;
 767                 SourceList::iterator x;
 768                 uint32_t n;
 769
 770                 for (n = 0, x = sources.begin(); x != sources.end(); ++x, ++n) {
 771
 772                         just_one.clear ();
 773                         just_one.push_back (*x);
 774
 775                         region_name = region_name_from_path ((*x)->path(), false, false, sources.size(), n);
 776
 777                         PropertyList plist;
 778
 779                         plist.add (ARDOUR::Properties::start, 0);
 780                         plist.add (ARDOUR::Properties::length, (*x)->length (pos));
 781                         plist.add (ARDOUR::Properties::name, region_name);
 782                         plist.add (ARDOUR::Properties::layer, 0);
 783                         plist.add (ARDOUR::Properties::whole_file, true);
 784                         plist.add (ARDOUR::Properties::external, true);
 785
 786                         boost::shared_ptr<Region> r = RegionFactory::create (just_one, plist);
 787
 788                         if (use_timestamp && boost::dynamic_pointer_cast<AudioRegion>(r)) {
 789                                 boost::dynamic_pointer_cast<AudioRegion>(r)->special_set_position((*x)->natural_position());
 790                         }
 791
 792                         regions.push_back (r);
 793                 }
 794         }
 795
 796         if (target_regions == 1) {
 797                 input_chan = regions.front()->n_channels();
 798         } else {
 799                 if (target_tracks == 1) {
 800                         input_chan = regions.size();
 801                 } else {
 802                         input_chan = 1;
 803                 }
 804         }
 805
 806         if (Config->get_output_auto_connect() & AutoConnectMaster) {
 807                 output_chan = (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan);
 808         } else {
 809                 output_chan = input_chan;
 810         }
 811
 812         int n = 0;
 813         framepos_t rlen = 0;
 814
 815         for (vector<boost::shared_ptr<Region> >::iterator r = regions.begin(); r != regions.end(); ++r, ++n) {
 816
 817                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (*r);
 818
 819                 if (use_timestamp && ar) {
 820
 821                         cerr << "Using timestamp to place region " << (*r)->name() << endl;
 822
 823                         /* get timestamp for this region */
 824
 825                         const boost::shared_ptr<Source> s (ar->sources().front());
 826                         const boost::shared_ptr<AudioSource> as = boost::dynamic_pointer_cast<AudioSource> (s);
 827
 828                         assert (as);
 829
 830                         if (as->natural_position() != 0) {
 831                                 pos = as->natural_position();
 832                                 cerr << "\tgot " << pos << " from source TC info\n";
 833                         } else if (target_tracks == 1) {
 834                                 /* hmm, no timestamp available, put it after the previous region
 835                                  */
 836                                 if (n == 0) {
 837                                         pos = get_preferred_edit_position ();
 838                                         cerr << "\tno timestamp, first file, use edit pos = " << pos << endl;
 839                                 } else {
 840                                         pos += rlen;
 841                                         cerr << "\tpacked-sequence-shuffle to " << pos << endl;
 842                                 }
 843                         } else {
 844                                 pos = get_preferred_edit_position ();
 845                                 cerr << "\tmultitracks, using edit position = " << pos << endl;
 846                         }
 847
 848                 }
 849
 850                 finish_bringing_in_material (*r, input_chan, output_chan, pos, mode, track);
 851
 852                 rlen = (*r)->length();
 853
 854                 if (target_tracks != 1) {
 855                         track.reset ();
 856                 } else {
 857                         if (!use_timestamp || !ar) {
 858                                 /* line each one up right after the other */
 859                                 pos += (*r)->length();
 860                         }
 861                 }
 862         }
 863
 864         /* setup peak file building in another thread */
 865
 866         for (SourceList::iterator x = sources.begin(); x != sources.end(); ++x) {
 867                 SourceFactory::setup_peakfile (*x, true);
 868         }
 869
 870         return 0;
 871 }
 872
 873 int
 874 Editor::finish_bringing_in_material (boost::shared_ptr<Region> region, uint32_t in_chans, uint32_t out_chans, nframes64_t& pos,
 875                                   ImportMode mode, boost::shared_ptr<Track>& existing_track)
 876 {
 877         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
 878         boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(region);
 879
 880         switch (mode) {
 881         case ImportAsRegion:
 882                 /* relax, its been done */
 883                 break;
 884
 885         case ImportToTrack:
 886         {
 887                 if (!existing_track) {
 888
 889                         if (ar) {
 890                                 existing_track = get_nth_selected_audio_track (0);
 891                         } else if (mr) {
 892                                 existing_track = get_nth_selected_midi_track (0);
 893                         }
 894
 895                         if (!existing_track) {
 896                                 return -1;
 897                         }
 898                 }
 899
 900                 boost::shared_ptr<Playlist> playlist = existing_track->playlist();
 901                 boost::shared_ptr<Region> copy (RegionFactory::create (region, region->properties()));
 902                 begin_reversible_command (_("insert file"));
 903                 playlist->clear_changes ();
 904                 playlist->add_region (copy, pos);
 905                 _session->add_command (new StatefulDiffCommand (playlist));
 906                 commit_reversible_command ();
 907                 break;
 908         }
 909
 910         case ImportAsTrack:
 911         {
 912                 if (!existing_track) {
 913                         if (ar) {
 914                                 list<boost::shared_ptr<AudioTrack> > at (_session->new_audio_track (in_chans, out_chans, Normal, 0, 1));
 915
 916                                 if (at.empty()) {
 917                                         return -1;
 918                                 }
 919
 920                                 existing_track = at.front();
 921                         } else if (mr) {
 922                                 list<boost::shared_ptr<MidiTrack> > mt (_session->new_midi_track (Normal, 0, 1));
 923
 924                                 if (mt.empty()) {
 925                                         return -1;
 926                                 }
 927
 928                                 existing_track = mt.front();
 929                         }
 930
 931                         existing_track->set_name (region->name());
 932                 }
 933
 934                 boost::shared_ptr<Region> copy (RegionFactory::create (region));
 935                 existing_track->playlist()->add_region (copy, pos);
 936                 break;
 937         }
 938
 939
 940         case ImportAsTapeTrack:
 941         {
 942                 if (!ar)
 943                         return -1;
 944
 945                 list<boost::shared_ptr<AudioTrack> > at (_session->new_audio_track (in_chans, out_chans, Destructive));
 946                 if (!at.empty()) {
 947                         boost::shared_ptr<Region> copy (RegionFactory::create (region));
 948                         at.front()->set_name (basename_nosuffix (copy->name()));
 949                         at.front()->playlist()->add_region (copy, pos);
 950                 }
 951                 break;
 952         }
 953         }
 954
 955         return 0;
 956 }
 957
 958 void *
 959 Editor::_import_thread (void *arg)
 960 {
 961         SessionEvent::create_per_thread_pool ("import events", 64);
 962
 963         Editor *ed = (Editor *) arg;
 964         return ed->import_thread ();
 965 }
 966
 967 void *
 968 Editor::import_thread ()
 969 {
 970         _session->import_audiofiles (import_status);
 971         pthread_exit_pbd (0);
 972         /*NOTREACHED*/
 973         return 0;
 974 }