libs/ardour/audio_track.cc

   1 /*
   2     Copyright (C) 2002 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 <boost/scoped_array.hpp>
  21
  22 #include "pbd/boost_debug.h"
  23 #include "pbd/enumwriter.h"
  24 #include "pbd/error.h"
  25
  26 #include "evoral/Curve.hpp"
  27
  28 #include "ardour/amp.h"
  29 #include "ardour/audio_buffer.h"
  30 #include "ardour/audio_diskstream.h"
  31 #include "ardour/audio_track.h"
  32 #include "ardour/audioplaylist.h"
  33 #include "ardour/buffer_set.h"
  34 #include "ardour/delivery.h"
  35 #include "ardour/meter.h"
  36 #include "ardour/playlist_factory.h"
  37 #include "ardour/processor.h"
  38 #include "ardour/region.h"
  39 #include "ardour/region_factory.h"
  40 #include "ardour/session.h"
  41 #include "ardour/session_playlists.h"
  42 #include "ardour/source.h"
  43 #include "ardour/utils.h"
  44
  45 #include "i18n.h"
  46
  47 using namespace std;
  48 using namespace ARDOUR;
  49 using namespace PBD;
  50
  51 AudioTrack::AudioTrack (Session& sess, string name, Route::Flag flag, TrackMode mode)
  52         : Track (sess, name, flag, mode)
  53 {
  54 }
  55
  56 AudioTrack::~AudioTrack ()
  57 {
  58 }
  59
  60 boost::shared_ptr<Diskstream>
  61 AudioTrack::create_diskstream ()
  62 {
  63         AudioDiskstream::Flag dflags = AudioDiskstream::Flag (0);
  64
  65         if (_flags & Auditioner) {
  66                 dflags = AudioDiskstream::Flag (dflags | AudioDiskstream::Hidden);
  67         } else {
  68                 dflags = AudioDiskstream::Flag (dflags | AudioDiskstream::Recordable);
  69         }
  70
  71         if (_mode == Destructive) {
  72                 dflags = AudioDiskstream::Flag (dflags | AudioDiskstream::Destructive);
  73         } else if (_mode == NonLayered){
  74                 dflags = AudioDiskstream::Flag(dflags | AudioDiskstream::NonLayered);
  75         }
  76
  77         return boost::shared_ptr<AudioDiskstream> (new AudioDiskstream (_session, name(), dflags));
  78 }
  79
  80 void
  81 AudioTrack::set_diskstream (boost::shared_ptr<Diskstream> ds)
  82 {
  83         Track::set_diskstream (ds);
  84
  85         _diskstream->set_track (this);
  86         _diskstream->set_destructive (_mode == Destructive);
  87         _diskstream->set_non_layered (_mode == NonLayered);
  88
  89         if (audio_diskstream()->deprecated_io_node) {
  90
  91                 if (!IO::connecting_legal) {
  92                         IO::ConnectingLegal.connect_same_thread (*this, boost::bind (&AudioTrack::deprecated_use_diskstream_connections, this));
  93                 } else {
  94                         deprecated_use_diskstream_connections ();
  95                 }
  96         }
  97
  98         _diskstream->set_record_enabled (false);
  99         _diskstream->request_input_monitoring (false);
 100
 101         DiskstreamChanged (); /* EMIT SIGNAL */
 102 }
 103
 104 boost::shared_ptr<AudioDiskstream>
 105 AudioTrack::audio_diskstream() const
 106 {
 107         return boost::dynamic_pointer_cast<AudioDiskstream>(_diskstream);
 108 }
 109
 110 int
 111 AudioTrack::set_mode (TrackMode m)
 112 {
 113         if (m != _mode) {
 114
 115                 if (_diskstream->set_destructive (m == Destructive)) {
 116                         return -1;
 117                 }
 118
 119                 _diskstream->set_non_layered (m == NonLayered);
 120                 _mode = m;
 121
 122                 TrackModeChanged (); /* EMIT SIGNAL */
 123         }
 124
 125         return 0;
 126 }
 127
 128 bool
 129 AudioTrack::can_use_mode (TrackMode m, bool& bounce_required)
 130 {
 131         switch (m) {
 132         case NonLayered:
 133         case Normal:
 134                 bounce_required = false;
 135                 return true;
 136
 137         case Destructive:
 138         default:
 139                 return _diskstream->can_become_destructive (bounce_required);
 140         }
 141 }
 142
 143 int
 144 AudioTrack::deprecated_use_diskstream_connections ()
 145 {
 146         boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 147
 148         if (diskstream->deprecated_io_node == 0) {
 149                 return 0;
 150         }
 151
 152         const XMLProperty* prop;
 153         XMLNode& node (*diskstream->deprecated_io_node);
 154
 155         /* don't do this more than once. */
 156
 157         diskstream->deprecated_io_node = 0;
 158
 159         if ((prop = node.property ("gain")) != 0) {
 160                 _amp->set_gain (atof (prop->value().c_str()), this);
 161         }
 162
 163         if ((prop = node.property ("input-connection")) != 0) {
 164                 boost::shared_ptr<Bundle> c = _session.bundle_by_name (prop->value());
 165
 166                 if (c == 0) {
 167                         error << string_compose(_("Unknown bundle \"%1\" listed for input of %2"), prop->value(), _name) << endmsg;
 168
 169                         if ((c = _session.bundle_by_name (_("in 1"))) == 0) {
 170                                 error << _("No input bundles available as a replacement")
 171                                 << endmsg;
 172                                 return -1;
 173                         } else {
 174                                 info << string_compose (_("Bundle %1 was not available - \"in 1\" used instead"), prop->value())
 175                                << endmsg;
 176                         }
 177                 }
 178
 179                 _input->connect_ports_to_bundle (c, true, this);
 180
 181         } else if ((prop = node.property ("inputs")) != 0) {
 182                 if (_input->set_ports (prop->value())) {
 183                         error << string_compose(_("improper input channel list in XML node (%1)"), prop->value()) << endmsg;
 184                         return -1;
 185                 }
 186         }
 187
 188         return 0;
 189 }
 190
 191 int
 192 AudioTrack::set_state (const XMLNode& node, int version)
 193 {
 194         const XMLProperty *prop;
 195
 196         if (Track::set_state (node, version)) {
 197                 return -1;
 198         }
 199
 200         if ((prop = node.property (X_("mode"))) != 0) {
 201                 _mode = TrackMode (string_2_enum (prop->value(), _mode));
 202         } else {
 203                 _mode = Normal;
 204         }
 205
 206         pending_state = const_cast<XMLNode*> (&node);
 207
 208         if (_session.state_of_the_state() & Session::Loading) {
 209                 _session.StateReady.connect_same_thread (*this, boost::bind (&AudioTrack::set_state_part_two, this));
 210         } else {
 211                 set_state_part_two ();
 212         }
 213
 214         return 0;
 215 }
 216
 217 XMLNode&
 218 AudioTrack::state (bool full_state)
 219 {
 220         XMLNode& root (Track::state(full_state));
 221         XMLNode* freeze_node;
 222         char buf[64];
 223
 224         if (_freeze_record.playlist) {
 225                 XMLNode* inode;
 226
 227                 freeze_node = new XMLNode (X_("freeze-info"));
 228                 freeze_node->add_property ("playlist", _freeze_record.playlist->name());
 229                 freeze_node->add_property ("state", enum_2_string (_freeze_record.state));
 230
 231                 for (vector<FreezeRecordProcessorInfo*>::iterator i = _freeze_record.processor_info.begin(); i != _freeze_record.processor_info.end(); ++i) {
 232                         inode = new XMLNode (X_("processor"));
 233                         (*i)->id.print (buf, sizeof (buf));
 234                         inode->add_property (X_("id"), buf);
 235                         inode->add_child_copy ((*i)->state);
 236
 237                         freeze_node->add_child_nocopy (*inode);
 238                 }
 239
 240                 root.add_child_nocopy (*freeze_node);
 241         }
 242
 243         root.add_property (X_("mode"), enum_2_string (_mode));
 244
 245         return root;
 246 }
 247
 248 void
 249 AudioTrack::set_state_part_two ()
 250 {
 251         XMLNode* fnode;
 252         XMLProperty* prop;
 253         LocaleGuard lg (X_("POSIX"));
 254
 255         /* This is called after all session state has been restored but before
 256            have been made ports and connections are established.
 257         */
 258
 259         if (pending_state == 0) {
 260                 return;
 261         }
 262
 263         if ((fnode = find_named_node (*pending_state, X_("freeze-info"))) != 0) {
 264
 265                 _freeze_record.state = Frozen;
 266
 267                 for (vector<FreezeRecordProcessorInfo*>::iterator i = _freeze_record.processor_info.begin(); i != _freeze_record.processor_info.end(); ++i) {
 268                         delete *i;
 269                 }
 270                 _freeze_record.processor_info.clear ();
 271
 272                 if ((prop = fnode->property (X_("playlist"))) != 0) {
 273                         boost::shared_ptr<Playlist> pl = _session.playlists->by_name (prop->value());
 274                         if (pl) {
 275                                 _freeze_record.playlist = boost::dynamic_pointer_cast<AudioPlaylist> (pl);
 276                         } else {
 277                                 _freeze_record.playlist.reset ();
 278                                 _freeze_record.state = NoFreeze;
 279                         return;
 280                         }
 281                 }
 282
 283                 if ((prop = fnode->property (X_("state"))) != 0) {
 284                         _freeze_record.state = FreezeState (string_2_enum (prop->value(), _freeze_record.state));
 285                 }
 286
 287                 XMLNodeConstIterator citer;
 288                 XMLNodeList clist = fnode->children();
 289
 290                 for (citer = clist.begin(); citer != clist.end(); ++citer) {
 291                         if ((*citer)->name() != X_("processor")) {
 292                                 continue;
 293                         }
 294
 295                         if ((prop = (*citer)->property (X_("id"))) == 0) {
 296                                 continue;
 297                         }
 298
 299                         FreezeRecordProcessorInfo* frii = new FreezeRecordProcessorInfo (*((*citer)->children().front()),
 300                                                                                    boost::shared_ptr<Processor>());
 301                         frii->id = prop->value ();
 302                         _freeze_record.processor_info.push_back (frii);
 303                 }
 304         }
 305 }
 306
 307 /** @param need_butler to be set to true if this track now needs the butler, otherwise it can be left alone
 308  *  or set to false.
 309  */
 310 int
 311 AudioTrack::roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick, bool& need_butler)
 312 {
 313         Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
 314
 315         if (!lm.locked()) {
 316                 boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 317                 framecnt_t playback_distance = diskstream->calculate_playback_distance(nframes);
 318                 if (can_internal_playback_seek(llabs(playback_distance))) {
 319                         /* TODO should declick */
 320                         internal_playback_seek(playback_distance);
 321                 }
 322                 return 0;
 323         }
 324
 325         framepos_t transport_frame;
 326         boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 327
 328         if (n_outputs().n_total() == 0 && _processors.empty()) {
 329                 return 0;
 330         }
 331
 332         if (!_active) {
 333                 silence (nframes);
 334                 if (_meter_point == MeterInput && (_monitoring & MonitorInput || _diskstream->record_enabled())) {
 335                         _meter->reset();
 336                 }
 337                 return 0;
 338         }
 339
 340         transport_frame = _session.transport_frame();
 341
 342         int dret;
 343         framecnt_t playback_distance;
 344
 345         if ((nframes = check_initial_delay (nframes, transport_frame)) == 0) {
 346
 347                 /* need to do this so that the diskstream sets its
 348                    playback distance to zero, thus causing diskstream::commit
 349                    to do nothing.
 350                 */
 351
 352                 BufferSet bufs; /* empty set, no matter - nothing will happen */
 353
 354                 dret = diskstream->process (bufs, transport_frame, 0, playback_distance, false);
 355                 need_butler = diskstream->commit (playback_distance);
 356                 return dret;
 357         }
 358
 359         _silent = false;
 360         _amp->apply_gain_automation(false);
 361
 362         BufferSet& bufs = _session.get_route_buffers (n_process_buffers ());
 363
 364         fill_buffers_with_input (bufs, _input, nframes);
 365
 366         if (_meter_point == MeterInput && (_monitoring & MonitorInput || _diskstream->record_enabled())) {
 367                 _meter->run (bufs, start_frame, end_frame, nframes, true);
 368         }
 369
 370         if ((dret = diskstream->process (bufs, transport_frame, nframes, playback_distance, (monitoring_state() == MonitoringDisk))) != 0) {
 371                 need_butler = diskstream->commit (playback_distance);
 372                 silence (nframes);
 373                 return dret;
 374         }
 375
 376         process_output_buffers (bufs, start_frame, end_frame, nframes, declick, (!diskstream->record_enabled() && _session.transport_rolling()));
 377
 378         need_butler = diskstream->commit (playback_distance);
 379
 380         return 0;
 381 }
 382
 383 int
 384 AudioTrack::export_stuff (BufferSet& buffers, framepos_t start, framecnt_t nframes,
 385                           boost::shared_ptr<Processor> endpoint, bool include_endpoint, bool for_export)
 386 {
 387         boost::scoped_array<gain_t> gain_buffer (new gain_t[nframes]);
 388         boost::scoped_array<Sample> mix_buffer (new Sample[nframes]);
 389         boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 390
 391         Glib::Threads::RWLock::ReaderLock rlock (_processor_lock);
 392
 393         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(diskstream->playlist());
 394
 395         assert(apl);
 396         assert(buffers.count().n_audio() >= 1);
 397         assert ((framecnt_t) buffers.get_audio(0).capacity() >= nframes);
 398
 399         if (apl->read (buffers.get_audio(0).data(), mix_buffer.get(), gain_buffer.get(), start, nframes) != nframes) {
 400                 return -1;
 401         }
 402
 403         uint32_t n=1;
 404         Sample* b = buffers.get_audio(0).data();
 405         BufferSet::audio_iterator bi = buffers.audio_begin();
 406         ++bi;
 407         for ( ; bi != buffers.audio_end(); ++bi, ++n) {
 408                 if (n < diskstream->n_channels().n_audio()) {
 409                         if (apl->read (bi->data(), mix_buffer.get(), gain_buffer.get(), start, nframes, n) != nframes) {
 410                                 return -1;
 411                         }
 412                         b = bi->data();
 413                 } else {
 414                         /* duplicate last across remaining buffers */
 415                         memcpy (bi->data(), b, sizeof (Sample) * nframes);
 416                 }
 417         }
 418
 419         // If no processing is required, there's no need to go any further.
 420
 421         if (!endpoint && !include_endpoint) {
 422                 return 0;
 423         }
 424
 425         for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
 426
 427                 if (!include_endpoint && (*i) == endpoint) {
 428                         break;
 429                 }
 430
 431                 /* if we're not exporting, stop processing if we come across a routing processor.
 432                  */
 433
 434                 if (!for_export && (*i)->does_routing()) {
 435                         break;
 436                 }
 437
 438                 /* even for export, don't run any processor that does routing.
 439
 440                    oh, and don't bother with the peak meter either.
 441                  */
 442
 443                 if (!(*i)->does_routing() && !boost::dynamic_pointer_cast<PeakMeter>(*i)) {
 444                         (*i)->run (buffers, start, start+nframes, nframes, true);
 445                 }
 446
 447                 if ((*i) == endpoint) {
 448                         break;
 449                 }
 450         }
 451
 452         return 0;
 453 }
 454
 455 bool
 456 AudioTrack::bounceable (boost::shared_ptr<Processor> endpoint, bool include_endpoint) const
 457 {
 458         if (!endpoint && !include_endpoint) {
 459                 /* no processing - just read from the playlist and create new
 460                    files: always possible.
 461                 */
 462                 return true;
 463         }
 464
 465         Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
 466         uint32_t naudio = n_inputs().n_audio();
 467
 468         for (ProcessorList::const_iterator r = _processors.begin(); r != _processors.end(); ++r) {
 469
 470                 /* if we're not including the endpoint, potentially stop
 471                    right here before we test matching i/o valences.
 472                 */
 473
 474                 if (!include_endpoint && (*r) == endpoint) {
 475                         return true;
 476                 }
 477
 478                 /* ignore any processors that do routing, because we will not
 479                  * use them during a bounce/freeze/export operation.
 480                  */
 481
 482                 if ((*r)->does_routing()) {
 483                         continue;
 484                 }
 485
 486                 /* does the output from the last considered processor match the
 487                  * input to this one?
 488                  */
 489
 490                 if (naudio != (*r)->input_streams().n_audio()) {
 491                         return false;
 492                 }
 493
 494                 /* we're including the endpoint - if we just hit it,
 495                    then stop.
 496                 */
 497
 498                 if ((*r) == endpoint) {
 499                         return true;
 500                 }
 501
 502                 /* save outputs of this processor to test against inputs
 503                    of the next one.
 504                 */
 505
 506                 naudio = (*r)->output_streams().n_audio();
 507         }
 508
 509         return true;
 510 }
 511
 512 boost::shared_ptr<Region>
 513 AudioTrack::bounce (InterThreadInfo& itt)
 514 {
 515         return bounce_range (_session.current_start_frame(), _session.current_end_frame(), itt, main_outs(), false);
 516 }
 517
 518 boost::shared_ptr<Region>
 519 AudioTrack::bounce_range (framepos_t start, framepos_t end, InterThreadInfo& itt,
 520                           boost::shared_ptr<Processor> endpoint, bool include_endpoint)
 521 {
 522         vector<boost::shared_ptr<Source> > srcs;
 523         return _session.write_one_track (*this, start, end, false, srcs, itt, endpoint, include_endpoint, false);
 524 }
 525
 526 void
 527 AudioTrack::freeze_me (InterThreadInfo& itt)
 528 {
 529         vector<boost::shared_ptr<Source> > srcs;
 530         string new_playlist_name;
 531         boost::shared_ptr<Playlist> new_playlist;
 532         string dir;
 533         string region_name;
 534         boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 535
 536         if ((_freeze_record.playlist = boost::dynamic_pointer_cast<AudioPlaylist>(diskstream->playlist())) == 0) {
 537                 return;
 538         }
 539
 540         uint32_t n = 1;
 541
 542         while (n < (UINT_MAX-1)) {
 543
 544                 string candidate;
 545
 546                 candidate = string_compose ("<F%2>%1", _freeze_record.playlist->name(), n);
 547
 548                 if (_session.playlists->by_name (candidate) == 0) {
 549                         new_playlist_name = candidate;
 550                         break;
 551                 }
 552
 553                 ++n;
 554
 555         }
 556
 557         if (n == (UINT_MAX-1)) {
 558           error << string_compose (X_("There are too many frozen versions of playlist \"%1\""
 559                             " to create another one"), _freeze_record.playlist->name())
 560                << endmsg;
 561                 return;
 562         }
 563
 564         boost::shared_ptr<Region> res;
 565
 566         if ((res = _session.write_one_track (*this, _session.current_start_frame(), _session.current_end_frame(), true, srcs, itt,
 567                                              main_outs(), false, false)) == 0) {
 568                 return;
 569         }
 570
 571         _freeze_record.processor_info.clear ();
 572
 573         {
 574                 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
 575
 576                 for (ProcessorList::iterator r = _processors.begin(); r != _processors.end(); ++r) {
 577
 578                         if (!(*r)->does_routing() && !boost::dynamic_pointer_cast<PeakMeter>(*r)) {
 579
 580                                 FreezeRecordProcessorInfo* frii  = new FreezeRecordProcessorInfo ((*r)->get_state(), (*r));
 581
 582                                 frii->id = (*r)->id();
 583
 584                                 _freeze_record.processor_info.push_back (frii);
 585
 586                                 /* now deactivate the processor */
 587
 588                                 (*r)->deactivate ();
 589                         }
 590
 591                         _session.set_dirty ();
 592                 }
 593         }
 594
 595         new_playlist = PlaylistFactory::create (DataType::AUDIO, _session, new_playlist_name, false);
 596
 597         /* XXX need main outs automation state _freeze_record.pan_automation_state = _mainpanner->automation_state(); */
 598
 599         region_name = new_playlist_name;
 600
 601         /* create a new region from all filesources, keep it private */
 602
 603         PropertyList plist;
 604
 605         plist.add (Properties::start, 0);
 606         plist.add (Properties::length, srcs[0]->length(srcs[0]->timeline_position()));
 607         plist.add (Properties::name, region_name);
 608         plist.add (Properties::whole_file, true);
 609
 610         boost::shared_ptr<Region> region (RegionFactory::create (srcs, plist, false));
 611
 612         new_playlist->set_orig_track_id (id());
 613         new_playlist->add_region (region, _session.current_start_frame());
 614         new_playlist->set_frozen (true);
 615         region->set_locked (true);
 616
 617         diskstream->use_playlist (boost::dynamic_pointer_cast<AudioPlaylist>(new_playlist));
 618         diskstream->set_record_enabled (false);
 619
 620         /* reset stuff that has already been accounted for in the freeze process */
 621
 622         set_gain (1.0, this);
 623         _amp->gain_control()->set_automation_state (Off);
 624         /* XXX need to use _main_outs _panner->set_automation_state (Off); */
 625
 626         _freeze_record.state = Frozen;
 627         FreezeChange(); /* EMIT SIGNAL */
 628 }
 629
 630 void
 631 AudioTrack::unfreeze ()
 632 {
 633         if (_freeze_record.playlist) {
 634                 audio_diskstream()->use_playlist (_freeze_record.playlist);
 635
 636                 {
 637                         Glib::Threads::RWLock::ReaderLock lm (_processor_lock); // should this be a write lock? jlc
 638                         for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
 639                                 for (vector<FreezeRecordProcessorInfo*>::iterator ii = _freeze_record.processor_info.begin(); ii != _freeze_record.processor_info.end(); ++ii) {
 640                                         if ((*ii)->id == (*i)->id()) {
 641                                                 (*i)->set_state (((*ii)->state), Stateful::current_state_version);
 642                                                 break;
 643                                         }
 644                                 }
 645                         }
 646                 }
 647
 648                 _freeze_record.playlist.reset ();
 649                 /* XXX need to use _main_outs _panner->set_automation_state (_freeze_record.pan_automation_state); */
 650         }
 651
 652         _freeze_record.state = UnFrozen;
 653         FreezeChange (); /* EMIT SIGNAL */
 654 }
 655
 656 boost::shared_ptr<AudioFileSource>
 657 AudioTrack::write_source (uint32_t n)
 658 {
 659         boost::shared_ptr<AudioDiskstream> ds = boost::dynamic_pointer_cast<AudioDiskstream> (_diskstream);
 660         assert (ds);
 661         return ds->write_source (n);
 662 }
 663
 664 boost::shared_ptr<Diskstream>
 665 AudioTrack::diskstream_factory (XMLNode const & node)
 666 {
 667         return boost::shared_ptr<Diskstream> (new AudioDiskstream (_session, node));
 668 }