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