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 "cursor_context.h"
  50 #include "editor.h"
  51 #include "sfdb_ui.h"
  52 #include "editing.h"
  53 #include "audio_time_axis.h"
  54 #include "midi_time_axis.h"
  55 #include "session_import_dialog.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, 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         dialog.run ();
 140 }
 141
 142 typedef std::map<PBD::ID,boost::shared_ptr<ARDOUR::Source> > SourceMap;
 143
 144 /**
 145  * Updating is still disabled, see note in libs/ardour/import.cc Session::import_files()
 146  *
 147  * all_or_nothing:
 148  *   true  = show "Update", "Import" and "Skip"
 149  *   false = show "Import", and "Cancel"
 150  *
 151  * Returns:
 152  *     0  To update an existing source of the same name
 153  *     1  To import/embed the file normally (make sure the new name will be unique)
 154  *     2  If the user wants to skip this file
 155  **/
 156 int
 157 Editor::check_whether_and_how_to_import(string path, bool all_or_nothing)
 158 {
 159         string wave_name (Glib::path_get_basename(path));
 160
 161         bool already_exists = false;
 162         uint32_t existing;
 163
 164         if ((existing = _session->count_sources_by_origin (path)) > 0) {
 165                 already_exists = true;
 166         }
 167
 168         int function = 1;
 169
 170         if (already_exists) {
 171                 string message;
 172                 if (all_or_nothing) {
 173                         // updating is still disabled
 174                         //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);
 175                         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);
 176                 } else {
 177                         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);
 178
 179                 }
 180                 MessageDialog dialog(message, false, Gtk::MESSAGE_QUESTION, Gtk::BUTTONS_NONE, true);
 181
 182                 if (all_or_nothing) {
 183                         // disabled
 184                         //dialog.add_button("Update", 0);
 185                         dialog.add_button("Import", 1);
 186                         dialog.add_button("Skip",   2);
 187                 } else {
 188                         dialog.add_button("Import", 1);
 189                         dialog.add_button("Cancel", 2);
 190                 }
 191
 192                 //dialog.add_button("Skip all", 4); // All or rest?
 193
 194                 dialog.show();
 195
 196                 function = dialog.run ();
 197
 198                 dialog.hide();
 199         }
 200
 201         return function;
 202 }
 203
 204 boost::shared_ptr<AudioTrack>
 205 Editor::get_nth_selected_audio_track (int nth) const
 206 {
 207         AudioTimeAxisView* atv;
 208         TrackSelection::iterator x;
 209
 210         for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
 211
 212                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 213
 214                 if (!atv) {
 215                         continue;
 216                 } else if (atv->is_audio_track()) {
 217                         --nth;
 218                 }
 219         }
 220
 221         if (x == selection->tracks.end()) {
 222                 atv = dynamic_cast<AudioTimeAxisView*>(selection->tracks.back());
 223         } else {
 224                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 225         }
 226
 227         if (!atv || !atv->is_audio_track()) {
 228                 return boost::shared_ptr<AudioTrack>();
 229         }
 230
 231         return atv->audio_track();
 232 }
 233
 234 boost::shared_ptr<MidiTrack>
 235 Editor::get_nth_selected_midi_track (int nth) const
 236 {
 237         MidiTimeAxisView* mtv;
 238         TrackSelection::iterator x;
 239
 240         for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
 241
 242                 mtv = dynamic_cast<MidiTimeAxisView*>(*x);
 243
 244                 if (!mtv) {
 245                         continue;
 246                 } else if (mtv->is_midi_track()) {
 247                         --nth;
 248                 }
 249         }
 250
 251         if (x == selection->tracks.end()) {
 252                 mtv = dynamic_cast<MidiTimeAxisView*>(selection->tracks.back());
 253         } else {
 254                 mtv = dynamic_cast<MidiTimeAxisView*>(*x);
 255         }
 256
 257         if (!mtv || !mtv->is_midi_track()) {
 258                 return boost::shared_ptr<MidiTrack>();
 259         }
 260
 261         return mtv->midi_track();
 262 }
 263
 264 void
 265 Editor::do_import (vector<string>        paths,
 266                    ImportDisposition     disposition,
 267                    ImportMode            mode,
 268                    SrcQuality            quality,
 269                    framepos_t&           pos,
 270                    ARDOUR::PluginInfoPtr instrument)
 271 {
 272         boost::shared_ptr<Track> track;
 273         vector<string> to_import;
 274         int nth = 0;
 275         bool use_timestamp = (pos == -1);
 276
 277         current_interthread_info = &import_status;
 278         import_status.current = 1;
 279         import_status.total = paths.size ();
 280         import_status.all_done = false;
 281
 282         ImportProgressWindow ipw (&import_status, _("Import"), _("Cancel Import"));
 283
 284         bool ok = true;
 285
 286         if (disposition == Editing::ImportMergeFiles) {
 287
 288                 /* create 1 region from all paths, add to 1 track,
 289                    ignore "track"
 290                 */
 291
 292                 bool cancel = false;
 293                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 294                         int check = check_whether_and_how_to_import(*a, false);
 295                         if (check == 2) {
 296                                 cancel = true;
 297                                 break;
 298                         }
 299                 }
 300
 301                 if (cancel) {
 302                         ok = false;
 303                 } else {
 304                         ipw.show ();
 305                         ok = (import_sndfiles (paths, disposition, mode, quality, pos, 1, 1, track, false, instrument) == 0);
 306                         import_status.sources.clear();
 307                 }
 308
 309         } else {
 310
 311                 bool replace = false;
 312
 313                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 314
 315                         const int check = check_whether_and_how_to_import (*a, true);
 316
 317                         switch (check) {
 318                         case 2:
 319                                 // user said skip
 320                                 continue;
 321                         case 0:
 322                                 fatal << "Updating existing sources should be disabled!" << endmsg;
 323                                 abort(); /* NOTREACHED*/
 324                                 break;
 325                         case 1:
 326                                 replace = false;
 327                                 break;
 328                         default:
 329                                 fatal << "Illegal return " << check <<  " from check_whether_and_how_to_import()!" << endmsg;
 330                                 abort(); /* NOTREACHED*/
 331                         }
 332
 333                         /* have to reset this for every file we handle */
 334
 335                         if (use_timestamp) {
 336                                 pos = -1;
 337                         }
 338
 339                         ipw.show ();
 340
 341                         switch (disposition) {
 342                         case Editing::ImportDistinctFiles:
 343
 344                                 to_import.clear ();
 345                                 to_import.push_back (*a);
 346
 347                                 if (mode == Editing::ImportToTrack) {
 348                                         track = get_nth_selected_audio_track (nth++);
 349                                 }
 350
 351                                 ok = (import_sndfiles (to_import, disposition, mode, quality, pos, 1, -1, track, replace, instrument) == 0);
 352                                 import_status.sources.clear();
 353                                 break;
 354
 355                         case Editing::ImportDistinctChannels:
 356
 357                                 to_import.clear ();
 358                                 to_import.push_back (*a);
 359
 360                                 ok = (import_sndfiles (to_import, disposition, mode, quality, pos, -1, -1, track, replace, instrument) == 0);
 361                                 import_status.sources.clear();
 362                                 break;
 363
 364                         case Editing::ImportSerializeFiles:
 365
 366                                 to_import.clear ();
 367                                 to_import.push_back (*a);
 368
 369                                 ok = (import_sndfiles (to_import, disposition, mode, quality, pos, 1, 1, track, replace, instrument) == 0);
 370                                 import_status.sources.clear();
 371                                 break;
 372
 373                         case Editing::ImportMergeFiles:
 374                                 // Not entered, handled in earlier if() branch
 375                                 break;
 376                         }
 377                 }
 378         }
 379
 380         if (ok) {
 381                 _session->save_state ("");
 382         }
 383
 384         import_status.all_done = true;
 385 }
 386
 387 void
 388 Editor::do_embed (vector<string> paths, ImportDisposition import_as, ImportMode mode, framepos_t& pos, ARDOUR::PluginInfoPtr instrument)
 389 {
 390         boost::shared_ptr<Track> track;
 391         bool check_sample_rate = true;
 392         bool ok = false;
 393         vector<string> to_embed;
 394         bool multi = paths.size() > 1;
 395         int nth = 0;
 396         bool use_timestamp = (pos == -1);
 397
 398         switch (import_as) {
 399         case Editing::ImportDistinctFiles:
 400                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 401
 402                         /* have to reset this for every file we handle */
 403                         if (use_timestamp) {
 404                                 pos = -1;
 405                         }
 406
 407                         to_embed.clear ();
 408                         to_embed.push_back (*a);
 409
 410                         if (mode == Editing::ImportToTrack) {
 411                                 track = get_nth_selected_audio_track (nth++);
 412                         }
 413
 414                         if (embed_sndfiles (to_embed, multi, check_sample_rate, import_as, mode, pos, 1, -1, track, instrument) < -1) {
 415                                 goto out;
 416                         }
 417                 }
 418                 break;
 419
 420         case Editing::ImportDistinctChannels:
 421                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 422
 423                         /* have to reset this for every file we handle */
 424                         if (use_timestamp) {
 425                                 pos = -1;
 426                         }
 427
 428                         to_embed.clear ();
 429                         to_embed.push_back (*a);
 430
 431                         if (embed_sndfiles (to_embed, multi, check_sample_rate, import_as, mode, pos, -1, -1, track, instrument) < -1) {
 432                                 goto out;
 433                         }
 434                 }
 435                 break;
 436
 437         case Editing::ImportMergeFiles:
 438                 if (embed_sndfiles (paths, multi, check_sample_rate, import_as, mode, pos, 1, 1, track, instrument) < -1) {
 439                         goto out;
 440                 }
 441                 break;
 442
 443         case Editing::ImportSerializeFiles:
 444                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 445
 446                         /* have to reset this for every file we handle */
 447                         if (use_timestamp) {
 448                                 pos = -1;
 449                         }
 450
 451                         to_embed.clear ();
 452                         to_embed.push_back (*a);
 453
 454                         if (embed_sndfiles (to_embed, multi, check_sample_rate, import_as, mode, pos, 1, 1, track, instrument) < -1) {
 455                                 goto out;
 456                         }
 457                 }
 458                 break;
 459         }
 460
 461         ok = true;
 462
 463   out:
 464         if (ok) {
 465                 _session->save_state ("");
 466         }
 467 }
 468
 469 int
 470 Editor::import_sndfiles (vector<string>            paths,
 471                          ImportDisposition         disposition,
 472                          ImportMode                mode,
 473                          SrcQuality                quality,
 474                          framepos_t&               pos,
 475                          int                       target_regions,
 476                          int                       target_tracks,
 477                          boost::shared_ptr<Track>& track,
 478                          bool                      replace,
 479                          ARDOUR::PluginInfoPtr     instrument)
 480 {
 481         import_status.paths = paths;
 482         import_status.done = false;
 483         import_status.cancel = false;
 484         import_status.freeze = false;
 485         import_status.quality = quality;
 486         import_status.replace_existing_source = replace;
 487
 488         import_status.mode = mode;
 489         import_status.pos = pos;
 490         import_status.target_tracks = target_tracks;
 491         import_status.target_regions = target_regions;
 492         import_status.track = track;
 493         import_status.replace = replace;
 494
 495         CursorContext::Handle cursor_ctx = CursorContext::create(*this, _cursors->wait);
 496         gdk_flush ();
 497
 498         /* start import thread for this spec. this will ultimately call Session::import_files()
 499            which, if successful, will add the files as regions to the region list. its up to us
 500            (the GUI) to direct additional steps after that.
 501         */
 502
 503         pthread_create_and_store ("import", &import_status.thread, _import_thread, this);
 504         pthread_detach (import_status.thread);
 505
 506         while (!import_status.done && !import_status.cancel) {
 507                 gtk_main_iteration ();
 508         }
 509
 510         // wait for thread to terminate
 511         while (!import_status.done) {
 512                 gtk_main_iteration ();
 513         }
 514
 515         int result = -1;
 516
 517         if (!import_status.cancel && !import_status.sources.empty()) {
 518                 result = add_sources (
 519                         import_status.paths,
 520                         import_status.sources,
 521                         import_status.pos,
 522                         disposition,
 523                         import_status.mode,
 524                         import_status.target_regions,
 525                         import_status.target_tracks,
 526                         track, false, instrument
 527                         );
 528
 529                 /* update position from results */
 530
 531                 pos = import_status.pos;
 532         }
 533
 534         return result;
 535 }
 536
 537 int
 538 Editor::embed_sndfiles (vector<string>            paths,
 539                         bool                      multifile,
 540                         bool&                     check_sample_rate,
 541                         ImportDisposition         disposition,
 542                         ImportMode                mode,
 543                         framepos_t&               pos,
 544                         int                       target_regions,
 545                         int                       target_tracks,
 546                         boost::shared_ptr<Track>& track,
 547                         ARDOUR::PluginInfoPtr     instrument)
 548 {
 549         boost::shared_ptr<AudioFileSource> source;
 550         SourceList sources;
 551         string linked_path;
 552         SoundFileInfo finfo;
 553
 554         CursorContext::Handle cursor_ctx = CursorContext::create(*this, _cursors->wait);
 555         gdk_flush ();
 556
 557         for (vector<string>::iterator p = paths.begin(); p != paths.end(); ++p) {
 558
 559                 string path = *p;
 560                 string error_msg;
 561
 562                 /* note that we temporarily truncated _id at the colon */
 563
 564                 if (!AudioFileSource::get_soundfile_info (path, finfo, error_msg)) {
 565                         error << string_compose(_("Editor: cannot open file \"%1\", (%2)"), path, error_msg ) << endmsg;
 566                         return -3;
 567                 }
 568
 569                 if (check_sample_rate  && (finfo.samplerate != (int) _session->frame_rate())) {
 570                         vector<string> choices;
 571
 572                         if (multifile) {
 573                                 choices.push_back (_("Cancel entire import"));
 574                                 choices.push_back (_("Don't embed it"));
 575                                 choices.push_back (_("Embed all without questions"));
 576
 577                                 Gtkmm2ext::Choice rate_choice (
 578                                         _("Sample rate"),
 579                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"),
 580                                                         short_path (path, 40)),
 581                                         choices, false
 582                                         );
 583
 584                                 int resx = rate_choice.run ();
 585
 586                                 switch (resx) {
 587                                 case 0: /* stop a multi-file import */
 588                                         return -2;
 589                                 case 1: /* don't embed this one */
 590                                         return -1;
 591                                 case 2: /* do it, and the rest without asking */
 592                                         check_sample_rate = false;
 593                                         break;
 594                                 case 3: /* do it */
 595                                         break;
 596                                 default:
 597                                         return -2;
 598                                 }
 599                         } else {
 600                                 choices.push_back (_("Cancel"));
 601                                 choices.push_back (_("Embed it anyway"));
 602
 603                                 Gtkmm2ext::Choice rate_choice (
 604                                         _("Sample rate"),
 605                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"), path),
 606                                         choices, false
 607                                         );
 608
 609                                 int resx = rate_choice.run ();
 610
 611                                 switch (resx) {
 612                                 case 0: /* don't import */
 613                                         return -1;
 614                                 case 1: /* do it */
 615                                         break;
 616                                 default:
 617                                         return -2;
 618                                 }
 619                         }
 620                 }
 621
 622                 for (int n = 0; n < finfo.channels; ++n) {
 623
 624                         try {
 625
 626                                 /* check if we have this thing embedded already */
 627
 628                                 boost::shared_ptr<Source> s;
 629
 630                                 if ((s = _session->audio_source_by_path_and_channel (path, n)) == 0) {
 631
 632                                         source = boost::dynamic_pointer_cast<AudioFileSource> (
 633                                                 SourceFactory::createExternal (DataType::AUDIO, *_session,
 634                                                                                path, n,
 635                                                                                (mode == ImportAsTapeTrack
 636                                                                                 ? Source::Destructive
 637                                                                                 : Source::Flag (0)),
 638                                                                         true, true));
 639                                 } else {
 640                                         source = boost::dynamic_pointer_cast<AudioFileSource> (s);
 641                                 }
 642
 643                                 sources.push_back(source);
 644                         }
 645
 646                         catch (failed_constructor& err) {
 647                                 error << string_compose(_("could not open %1"), path) << endmsg;
 648                                 return -3;
 649                         }
 650
 651                         gtk_main_iteration();
 652                 }
 653         }
 654
 655         if (!sources.empty()) {
 656                 return add_sources (paths, sources, pos, disposition, mode, target_regions, target_tracks, track, true, instrument);
 657         }
 658
 659         return 0;
 660 }
 661
 662 int
 663 Editor::add_sources (vector<string>            paths,
 664                      SourceList&               sources,
 665                      framepos_t&               pos,
 666                      ImportDisposition         disposition,
 667                      ImportMode                mode,
 668                      int                       target_regions,
 669                      int                       target_tracks,
 670                      boost::shared_ptr<Track>& track,
 671                      bool                      /*add_channel_suffix*/,
 672                      ARDOUR::PluginInfoPtr     instrument)
 673 {
 674         vector<boost::shared_ptr<Region> > regions;
 675         string region_name;
 676         uint32_t input_chan = 0;
 677         uint32_t output_chan = 0;
 678         bool use_timestamp;
 679         vector<string> track_names;
 680
 681         use_timestamp = (pos == -1);
 682
 683         // kludge (for MIDI we're abusing "channel" for "track" here)
 684         if (SMFSource::safe_midi_file_extension (paths.front())) {
 685                 target_regions = -1;
 686         }
 687
 688         if (target_regions == 1) {
 689
 690                 /* take all the sources we have and package them up as a region */
 691
 692                 region_name = region_name_from_path (paths.front(), (sources.size() > 1), false);
 693
 694                 /* we checked in import_sndfiles() that there were not too many */
 695
 696                 while (RegionFactory::region_by_name (region_name)) {
 697                         region_name = bump_name_once (region_name, '.');
 698                 }
 699
 700                 PropertyList plist;
 701
 702                 plist.add (ARDOUR::Properties::start, 0);
 703                 plist.add (ARDOUR::Properties::length, sources[0]->length (pos));
 704                 plist.add (ARDOUR::Properties::name, region_name);
 705                 plist.add (ARDOUR::Properties::layer, 0);
 706                 plist.add (ARDOUR::Properties::whole_file, true);
 707                 plist.add (ARDOUR::Properties::external, true);
 708
 709                 boost::shared_ptr<Region> r = RegionFactory::create (sources, plist);
 710
 711                 if (use_timestamp && boost::dynamic_pointer_cast<AudioRegion>(r)) {
 712                         boost::dynamic_pointer_cast<AudioRegion>(r)->special_set_position(sources[0]->natural_position());
 713                 }
 714
 715                 regions.push_back (r);
 716
 717                 /* if we're creating a new track, name it after the cleaned-up
 718                  * and "merged" region name.
 719                  */
 720
 721                 track_names.push_back (region_name);
 722
 723         } else if (target_regions == -1 || target_regions > 1) {
 724
 725                 /* take each source and create a region for each one */
 726
 727                 SourceList just_one;
 728                 SourceList::iterator x;
 729                 uint32_t n;
 730
 731                 for (n = 0, x = sources.begin(); x != sources.end(); ++x, ++n) {
 732
 733                         just_one.clear ();
 734                         just_one.push_back (*x);
 735
 736                         boost::shared_ptr<FileSource> fs = boost::dynamic_pointer_cast<FileSource> (*x);
 737
 738                         if (sources.size() > 1 && disposition == ImportDistinctChannels) {
 739
 740                                 /* generate a per-channel region name so that things work as
 741                                  * intended
 742                                  */
 743
 744                                 string path;
 745
 746                                 if (fs) {
 747                                         region_name = basename_nosuffix (fs->path());
 748                                 } else {
 749                                         region_name = (*x)->name();
 750                                 }
 751
 752                                 if (sources.size() == 2) {
 753                                         if (n == 0) {
 754                                                 region_name += "-L";
 755                                         } else {
 756                                                 region_name += "-R";
 757                                         }
 758                                 } else if (sources.size() > 2) {
 759                                         region_name += string_compose ("-%1", n+1);
 760                                 }
 761
 762                                 track_names.push_back (region_name);
 763
 764                         } else {
 765                                 if (fs) {
 766                                         region_name = region_name_from_path (fs->path(), false, false, sources.size(), n);
 767                                 } else {
 768                                         region_name = (*x)->name();
 769                                 }
 770
 771                                 if (SMFSource::safe_midi_file_extension (paths.front())) {
 772                                         string track_name = string_compose ("%1-t%2", PBD::basename_nosuffix (fs->path()), (n + 1));
 773                                         track_names.push_back (track_name);
 774                                 } else {
 775                                         track_names.push_back (PBD::basename_nosuffix (paths[n]));
 776                                 }
 777                         }
 778
 779                         PropertyList plist;
 780
 781                         /* Fudge region length to ensure it is non-zero; make it 1 beat at 120bpm
 782                            for want of a better idea.  It can't be too small, otherwise if this
 783                            is a MIDI region the conversion from frames -> beats -> frames will
 784                            round it back down to 0 again.
 785                         */
 786                         framecnt_t len = (*x)->length (pos);
 787                         if (len == 0) {
 788                                 len = (60.0 / 120.0) * _session->frame_rate ();
 789                         }
 790
 791                         plist.add (ARDOUR::Properties::start, 0);
 792                         plist.add (ARDOUR::Properties::length, len);
 793                         plist.add (ARDOUR::Properties::name, region_name);
 794                         plist.add (ARDOUR::Properties::layer, 0);
 795                         plist.add (ARDOUR::Properties::whole_file, true);
 796                         plist.add (ARDOUR::Properties::external, true);
 797
 798                         boost::shared_ptr<Region> r = RegionFactory::create (just_one, plist);
 799
 800                         if (use_timestamp && boost::dynamic_pointer_cast<AudioRegion>(r)) {
 801                                 boost::dynamic_pointer_cast<AudioRegion>(r)->special_set_position((*x)->natural_position());
 802                         }
 803
 804                         regions.push_back (r);
 805                 }
 806         }
 807
 808         if (target_regions == 1) {
 809                 input_chan = regions.front()->n_channels();
 810         } else {
 811                 if (target_tracks == 1) {
 812                         input_chan = regions.size();
 813                 } else {
 814                         input_chan = 1;
 815                 }
 816         }
 817
 818         if (Config->get_output_auto_connect() & AutoConnectMaster) {
 819                 output_chan = (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan);
 820         } else {
 821                 output_chan = input_chan;
 822         }
 823
 824         int n = 0;
 825         framepos_t rlen = 0;
 826
 827         begin_reversible_command (Operations::insert_file);
 828
 829         /* we only use tracks names when importing to new tracks, but we
 830          * require that one is defined for every region, just to keep
 831          * the API simpler.
 832          */
 833         assert (regions.size() == track_names.size());
 834
 835         for (vector<boost::shared_ptr<Region> >::iterator r = regions.begin(); r != regions.end(); ++r, ++n) {
 836                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (*r);
 837
 838                 if (use_timestamp) {
 839                         if (ar) {
 840
 841                                 /* get timestamp for this region */
 842
 843                                 const boost::shared_ptr<Source> s (ar->sources().front());
 844                                 const boost::shared_ptr<AudioSource> as = boost::dynamic_pointer_cast<AudioSource> (s);
 845
 846                                 assert (as);
 847
 848                                 if (as->natural_position() != 0) {
 849                                         pos = as->natural_position();
 850                                 } else if (target_tracks == 1) {
 851                                         /* hmm, no timestamp available, put it after the previous region
 852                                          */
 853                                         if (n == 0) {
 854                                                 pos = get_preferred_edit_position ();
 855                                         } else {
 856                                                 pos += rlen;
 857                                         }
 858                                 } else {
 859                                         pos = get_preferred_edit_position ();
 860                                 }
 861                         } else {
 862                                 /* should really get first position in MIDI file, but for now, use edit position*/
 863                                 pos = get_preferred_edit_position ();
 864                         }
 865                 }
 866
 867                 finish_bringing_in_material (*r, input_chan, output_chan, pos, mode, track, track_names[n], instrument);
 868
 869                 rlen = (*r)->length();
 870
 871                 if (target_tracks != 1) {
 872                         track.reset ();
 873                 } else {
 874                         if (!use_timestamp || !ar) {
 875                                 /* line each one up right after the other */
 876                                 pos += (*r)->length();
 877                         }
 878                 }
 879         }
 880
 881         commit_reversible_command ();
 882
 883         /* setup peak file building in another thread */
 884
 885         for (SourceList::iterator x = sources.begin(); x != sources.end(); ++x) {
 886                 SourceFactory::setup_peakfile (*x, true);
 887         }
 888
 889         return 0;
 890 }
 891
 892 int
 893 Editor::finish_bringing_in_material (boost::shared_ptr<Region> region,
 894                                      uint32_t                  in_chans,
 895                                      uint32_t                  out_chans,
 896                                      framepos_t&               pos,
 897                                      ImportMode                mode,
 898                                      boost::shared_ptr<Track>& existing_track,
 899                                      const string&             new_track_name,
 900                                      ARDOUR::PluginInfoPtr     instrument)
 901 {
 902         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
 903         boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(region);
 904
 905         switch (mode) {
 906         case ImportAsRegion:
 907                 /* relax, its been done */
 908                 break;
 909
 910         case ImportToTrack:
 911         {
 912                 if (!existing_track) {
 913
 914                         if (ar) {
 915                                 existing_track = get_nth_selected_audio_track (0);
 916                         } else if (mr) {
 917                                 existing_track = get_nth_selected_midi_track (0);
 918                         }
 919
 920                         if (!existing_track) {
 921                                 return -1;
 922                         }
 923                 }
 924
 925                 boost::shared_ptr<Playlist> playlist = existing_track->playlist();
 926                 boost::shared_ptr<Region> copy (RegionFactory::create (region, region->properties()));
 927                 playlist->clear_changes ();
 928                 playlist->add_region (copy, pos);
 929                 if (Config->get_edit_mode() == Ripple)
 930                         playlist->ripple (pos, copy->length(), copy);
 931
 932                 _session->add_command (new StatefulDiffCommand (playlist));
 933                 break;
 934         }
 935
 936         case ImportAsTrack:
 937         {
 938                 if (!existing_track) {
 939                         if (ar) {
 940                                 list<boost::shared_ptr<AudioTrack> > at (_session->new_audio_track (in_chans, out_chans, 0, 1, string(), PresentationInfo::max_order, Normal));
 941
 942                                 if (at.empty()) {
 943                                         return -1;
 944                                 }
 945                                 if (Config->get_strict_io ()) {
 946                                         for (list<boost::shared_ptr<AudioTrack> >::iterator i = at.begin(); i != at.end(); ++i) {
 947                                                 (*i)->set_strict_io (true);
 948                                         }
 949                                 }
 950
 951                                 existing_track = at.front();
 952                         } else if (mr) {
 953                                 list<boost::shared_ptr<MidiTrack> > mt (
 954                                         _session->new_midi_track (ChanCount (DataType::MIDI, 1),
 955                                                                   ChanCount (DataType::MIDI, 1),
 956                                                                   instrument,
 957                                                                   0, 1, string(),
 958                                                                   PresentationInfo::max_order));
 959
 960                                 if (mt.empty()) {
 961                                         return -1;
 962                                 }
 963                                 if (Config->get_strict_io ()) {
 964                                         for (list<boost::shared_ptr<MidiTrack> >::iterator i = mt.begin(); i != mt.end(); ++i) {
 965                                                 (*i)->set_strict_io (true);
 966                                         }
 967                                 }
 968
 969                                 // TODO set strict_io from preferences
 970                                 existing_track = mt.front();
 971                         }
 972
 973                         if (!new_track_name.empty()) {
 974                                 existing_track->set_name (new_track_name);
 975                         } else {
 976                                 existing_track->set_name (region->name());
 977                         }
 978                 }
 979
 980                 boost::shared_ptr<Playlist> playlist = existing_track->playlist();
 981                 boost::shared_ptr<Region> copy (RegionFactory::create (region, true));
 982                 playlist->clear_changes ();
 983                 playlist->add_region (copy, pos);
 984                 _session->add_command (new StatefulDiffCommand (playlist));
 985                 break;
 986         }
 987
 988         case ImportAsTapeTrack:
 989         {
 990                 if (!ar) {
 991                         return -1;
 992                 }
 993
 994                 list<boost::shared_ptr<AudioTrack> > at (_session->new_audio_track (in_chans, out_chans, 0, 1, string(), PresentationInfo::max_order, Destructive));
 995                 if (!at.empty()) {
 996                         boost::shared_ptr<Playlist> playlist = at.front()->playlist();
 997                         boost::shared_ptr<Region> copy (RegionFactory::create (region, true));
 998                         playlist->clear_changes ();
 999                         playlist->add_region (copy, pos);
1000                         _session->add_command (new StatefulDiffCommand (playlist));
1001                 }
1002                 if (Config->get_strict_io ()) {
1003                         for (list<boost::shared_ptr<AudioTrack> >::iterator i = at.begin(); i != at.end(); ++i) {
1004                                 (*i)->set_strict_io (true);
1005                         }
1006                 }
1007                 break;
1008         }
1009         }
1010
1011         return 0;
1012 }
1013
1014 void *
1015 Editor::_import_thread (void *arg)
1016 {
1017         SessionEvent::create_per_thread_pool ("import events", 64);
1018
1019         Editor *ed = (Editor *) arg;
1020         return ed->import_thread ();
1021 }
1022
1023 void *
1024 Editor::import_thread ()
1025 {
1026         _session->import_files (import_status);
1027         return 0;
1028 }