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 (AudioDiskstream::Recordable);
  64
  65         if (_mode == Destructive) {
  66                 dflags = AudioDiskstream::Flag (dflags | AudioDiskstream::Destructive);
  67         } else if (_mode == NonLayered){
  68                 dflags = AudioDiskstream::Flag(dflags | AudioDiskstream::NonLayered);
  69         }
  70
  71         return boost::shared_ptr<AudioDiskstream> (new AudioDiskstream (_session, name(), dflags));
  72 }
  73
  74 void
  75 AudioTrack::set_diskstream (boost::shared_ptr<Diskstream> ds)
  76 {
  77         Track::set_diskstream (ds);
  78
  79         _diskstream->set_track (this);
  80         _diskstream->set_destructive (_mode == Destructive);
  81         _diskstream->set_non_layered (_mode == NonLayered);
  82
  83         if (audio_diskstream()->deprecated_io_node) {
  84
  85                 if (!IO::connecting_legal) {
  86                         IO::ConnectingLegal.connect_same_thread (*this, boost::bind (&AudioTrack::deprecated_use_diskstream_connections, this));
  87                 } else {
  88                         deprecated_use_diskstream_connections ();
  89                 }
  90         }
  91
  92         _diskstream->set_record_enabled (false);
  93         _diskstream->request_input_monitoring (false);
  94
  95         DiskstreamChanged (); /* EMIT SIGNAL */
  96 }
  97
  98 boost::shared_ptr<AudioDiskstream>
  99 AudioTrack::audio_diskstream() const
 100 {
 101         return boost::dynamic_pointer_cast<AudioDiskstream>(_diskstream);
 102 }
 103
 104 int
 105 AudioTrack::set_mode (TrackMode m)
 106 {
 107         if (m != _mode) {
 108
 109                 if (_diskstream->set_destructive (m == Destructive)) {
 110                         return -1;
 111                 }
 112
 113                 _diskstream->set_non_layered (m == NonLayered);
 114                 _mode = m;
 115
 116                 TrackModeChanged (); /* EMIT SIGNAL */
 117         }
 118
 119         return 0;
 120 }
 121
 122 bool
 123 AudioTrack::can_use_mode (TrackMode m, bool& bounce_required)
 124 {
 125         switch (m) {
 126         case NonLayered:
 127         case Normal:
 128                 bounce_required = false;
 129                 return true;
 130
 131         case Destructive:
 132         default:
 133                 return _diskstream->can_become_destructive (bounce_required);
 134         }
 135 }
 136
 137 int
 138 AudioTrack::deprecated_use_diskstream_connections ()
 139 {
 140         boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 141
 142         if (diskstream->deprecated_io_node == 0) {
 143                 return 0;
 144         }
 145
 146         const XMLProperty* prop;
 147         XMLNode& node (*diskstream->deprecated_io_node);
 148
 149         /* don't do this more than once. */
 150
 151         diskstream->deprecated_io_node = 0;
 152
 153         if ((prop = node.property ("gain")) != 0) {
 154                 _amp->set_gain (atof (prop->value().c_str()), this);
 155         }
 156
 157         if ((prop = node.property ("input-connection")) != 0) {
 158                 boost::shared_ptr<Bundle> c = _session.bundle_by_name (prop->value());
 159
 160                 if (c == 0) {
 161                         error << string_compose(_("Unknown bundle \"%1\" listed for input of %2"), prop->value(), _name) << endmsg;
 162
 163                         if ((c = _session.bundle_by_name (_("in 1"))) == 0) {
 164                                 error << _("No input bundles available as a replacement")
 165                                 << endmsg;
 166                                 return -1;
 167                         } else {
 168                                 info << string_compose (_("Bundle %1 was not available - \"in 1\" used instead"), prop->value())
 169                                << endmsg;
 170                         }
 171                 }
 172
 173                 _input->connect_ports_to_bundle (c, true, this);
 174
 175         } else if ((prop = node.property ("inputs")) != 0) {
 176                 if (_input->set_ports (prop->value())) {
 177                         error << string_compose(_("improper input channel list in XML node (%1)"), prop->value()) << endmsg;
 178                         return -1;
 179                 }
 180         }
 181
 182         return 0;
 183 }
 184
 185 int
 186 AudioTrack::set_state (const XMLNode& node, int version)
 187 {
 188         const XMLProperty *prop;
 189
 190         if (Track::set_state (node, version)) {
 191                 return -1;
 192         }
 193
 194         if ((prop = node.property (X_("mode"))) != 0) {
 195                 _mode = TrackMode (string_2_enum (prop->value(), _mode));
 196         } else {
 197                 _mode = Normal;
 198         }
 199
 200         pending_state = const_cast<XMLNode*> (&node);
 201
 202         if (_session.state_of_the_state() & Session::Loading) {
 203                 _session.StateReady.connect_same_thread (*this, boost::bind (&AudioTrack::set_state_part_two, this));
 204         } else {
 205                 set_state_part_two ();
 206         }
 207
 208         return 0;
 209 }
 210
 211 XMLNode&
 212 AudioTrack::state (bool full_state)
 213 {
 214         XMLNode& root (Track::state(full_state));
 215         XMLNode* freeze_node;
 216         char buf[64];
 217
 218         if (_freeze_record.playlist) {
 219                 XMLNode* inode;
 220
 221                 freeze_node = new XMLNode (X_("freeze-info"));
 222                 freeze_node->add_property ("playlist", _freeze_record.playlist->name());
 223                 freeze_node->add_property ("state", enum_2_string (_freeze_record.state));
 224
 225                 for (vector<FreezeRecordProcessorInfo*>::iterator i = _freeze_record.processor_info.begin(); i != _freeze_record.processor_info.end(); ++i) {
 226                         inode = new XMLNode (X_("processor"));
 227                         (*i)->id.print (buf, sizeof (buf));
 228                         inode->add_property (X_("id"), buf);
 229                         inode->add_child_copy ((*i)->state);
 230
 231                         freeze_node->add_child_nocopy (*inode);
 232                 }
 233
 234                 root.add_child_nocopy (*freeze_node);
 235         }
 236
 237         root.add_property (X_("mode"), enum_2_string (_mode));
 238
 239         return root;
 240 }
 241
 242 void
 243 AudioTrack::set_state_part_two ()
 244 {
 245         XMLNode* fnode;
 246         XMLProperty* prop;
 247         LocaleGuard lg (X_("C"));
 248
 249         /* This is called after all session state has been restored but before
 250            have been made ports and connections are established.
 251         */
 252
 253         if (pending_state == 0) {
 254                 return;
 255         }
 256
 257         if ((fnode = find_named_node (*pending_state, X_("freeze-info"))) != 0) {
 258
 259                 _freeze_record.state = Frozen;
 260
 261                 for (vector<FreezeRecordProcessorInfo*>::iterator i = _freeze_record.processor_info.begin(); i != _freeze_record.processor_info.end(); ++i) {
 262                         delete *i;
 263                 }
 264                 _freeze_record.processor_info.clear ();
 265
 266                 if ((prop = fnode->property (X_("playlist"))) != 0) {
 267                         boost::shared_ptr<Playlist> pl = _session.playlists->by_name (prop->value());
 268                         if (pl) {
 269                                 _freeze_record.playlist = boost::dynamic_pointer_cast<AudioPlaylist> (pl);
 270                         } else {
 271                                 _freeze_record.playlist.reset ();
 272                                 _freeze_record.state = NoFreeze;
 273                         return;
 274                         }
 275                 }
 276
 277                 if ((prop = fnode->property (X_("state"))) != 0) {
 278                         _freeze_record.state = FreezeState (string_2_enum (prop->value(), _freeze_record.state));
 279                 }
 280
 281                 XMLNodeConstIterator citer;
 282                 XMLNodeList clist = fnode->children();
 283
 284                 for (citer = clist.begin(); citer != clist.end(); ++citer) {
 285                         if ((*citer)->name() != X_("processor")) {
 286                                 continue;
 287                         }
 288
 289                         if ((prop = (*citer)->property (X_("id"))) == 0) {
 290                                 continue;
 291                         }
 292
 293                         FreezeRecordProcessorInfo* frii = new FreezeRecordProcessorInfo (*((*citer)->children().front()),
 294                                                                                    boost::shared_ptr<Processor>());
 295                         frii->id = prop->value ();
 296                         _freeze_record.processor_info.push_back (frii);
 297                 }
 298         }
 299 }
 300
 301 /** @param need_butler to be set to true if this track now needs the butler, otherwise it can be left alone
 302  *  or set to false.
 303  */
 304 int
 305 AudioTrack::roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick, bool& need_butler)
 306 {
 307         Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
 308
 309         if (!lm.locked()) {
 310                 boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 311                 framecnt_t playback_distance = diskstream->calculate_playback_distance(nframes);
 312                 if (can_internal_playback_seek(llabs(playback_distance))) {
 313                         /* TODO should declick */
 314                         internal_playback_seek(playback_distance);
 315                 }
 316                 return 0;
 317         }
 318
 319         framepos_t transport_frame;
 320         boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 321
 322         if (n_outputs().n_total() == 0 && _processors.empty()) {
 323                 return 0;
 324         }
 325
 326         if (!_active) {
 327                 silence (nframes);
 328                 if (_meter_point == MeterInput && (_monitoring & MonitorInput || _diskstream->record_enabled())) {
 329                         _meter->reset();
 330                 }
 331                 return 0;
 332         }
 333
 334         transport_frame = _session.transport_frame();
 335
 336         int dret;
 337         framecnt_t playback_distance;
 338
 339         if ((nframes = check_initial_delay (nframes, transport_frame)) == 0) {
 340
 341                 /* need to do this so that the diskstream sets its
 342                    playback distance to zero, thus causing diskstream::commit
 343                    to do nothing.
 344                 */
 345
 346                 BufferSet bufs; /* empty set, no matter - nothing will happen */
 347
 348                 dret = diskstream->process (bufs, transport_frame, 0, playback_distance, false);
 349                 need_butler = diskstream->commit (playback_distance);
 350                 return dret;
 351         }
 352
 353         if (_mute_control->list() && _mute_control->automation_playback()) {
 354                 bool        valid = false;
 355                 const float mute  = _mute_control->list()->rt_safe_eval(transport_frame, valid);
 356                 if (mute >= 0.5 && !muted()) {
 357                         _mute_control->set_value(1.0);  // mute
 358                 } else if (mute < 0.5 && muted()) {
 359                         _mute_control->set_value(0.0);  // unmute
 360                 }
 361         }
 362
 363         _silent = false;
 364         _amp->apply_gain_automation(false);
 365
 366         BufferSet& bufs = _session.get_route_buffers (n_process_buffers ());
 367
 368         fill_buffers_with_input (bufs, _input, nframes);
 369
 370         if (_meter_point == MeterInput && (_monitoring & MonitorInput || _diskstream->record_enabled())) {
 371                 _meter->run (bufs, start_frame, end_frame, nframes, true);
 372         }
 373
 374         if ((dret = diskstream->process (bufs, transport_frame, nframes, playback_distance, (monitoring_state() == MonitoringDisk))) != 0) {
 375                 need_butler = diskstream->commit (playback_distance);
 376                 silence (nframes);
 377                 return dret;
 378         }
 379
 380         process_output_buffers (bufs, start_frame, end_frame, nframes, declick, (!diskstream->record_enabled() && _session.transport_rolling()));
 381
 382         for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
 383                 boost::shared_ptr<Delivery> d = boost::dynamic_pointer_cast<Delivery> (*i);
 384                 if (d) {
 385                         d->flush_buffers (nframes);
 386                 }
 387         }
 388
 389         need_butler = diskstream->commit (playback_distance);
 390
 391         return 0;
 392 }
 393
 394 int
 395 AudioTrack::export_stuff (BufferSet& buffers, framepos_t start, framecnt_t nframes,
 396                           boost::shared_ptr<Processor> endpoint, bool include_endpoint, bool for_export, bool for_freeze)
 397 {
 398         boost::scoped_array<gain_t> gain_buffer (new gain_t[nframes]);
 399         boost::scoped_array<Sample> mix_buffer (new Sample[nframes]);
 400         boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 401
 402         Glib::Threads::RWLock::ReaderLock rlock (_processor_lock);
 403
 404         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(diskstream->playlist());
 405
 406         assert(apl);
 407         assert(buffers.count().n_audio() >= 1);
 408         assert ((framecnt_t) buffers.get_audio(0).capacity() >= nframes);
 409
 410         if (apl->read (buffers.get_audio(0).data(), mix_buffer.get(), gain_buffer.get(), start, nframes) != nframes) {
 411                 return -1;
 412         }
 413
 414         uint32_t n=1;
 415         Sample* b = buffers.get_audio(0).data();
 416         BufferSet::audio_iterator bi = buffers.audio_begin();
 417         ++bi;
 418         for ( ; bi != buffers.audio_end(); ++bi, ++n) {
 419                 if (n < diskstream->n_channels().n_audio()) {
 420                         if (apl->read (bi->data(), mix_buffer.get(), gain_buffer.get(), start, nframes, n) != nframes) {
 421                                 return -1;
 422                         }
 423                         b = bi->data();
 424                 } else {
 425                         /* duplicate last across remaining buffers */
 426                         memcpy (bi->data(), b, sizeof (Sample) * nframes);
 427                 }
 428         }
 429
 430         bounce_process (buffers, start, nframes, endpoint, include_endpoint, for_export, for_freeze);
 431
 432         return 0;
 433 }
 434
 435 bool
 436 AudioTrack::bounceable (boost::shared_ptr<Processor> endpoint, bool include_endpoint) const
 437 {
 438         if (!endpoint && !include_endpoint) {
 439                 /* no processing - just read from the playlist and create new
 440                    files: always possible.
 441                 */
 442                 return true;
 443         }
 444
 445         Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
 446         uint32_t naudio = n_inputs().n_audio();
 447
 448         for (ProcessorList::const_iterator r = _processors.begin(); r != _processors.end(); ++r) {
 449
 450                 /* if we're not including the endpoint, potentially stop
 451                    right here before we test matching i/o valences.
 452                 */
 453
 454                 if (!include_endpoint && (*r) == endpoint) {
 455                         return true;
 456                 }
 457
 458                 /* ignore any processors that do routing, because we will not
 459                  * use them during a bounce/freeze/export operation.
 460                  */
 461
 462                 if ((*r)->does_routing()) {
 463                         continue;
 464                 }
 465
 466                 /* does the output from the last considered processor match the
 467                  * input to this one?
 468                  */
 469
 470                 if (naudio != (*r)->input_streams().n_audio()) {
 471                         return false;
 472                 }
 473
 474                 /* we're including the endpoint - if we just hit it,
 475                    then stop.
 476                 */
 477
 478                 if ((*r) == endpoint) {
 479                         return true;
 480                 }
 481
 482                 /* save outputs of this processor to test against inputs
 483                    of the next one.
 484                 */
 485
 486                 naudio = (*r)->output_streams().n_audio();
 487         }
 488
 489         return true;
 490 }
 491
 492 boost::shared_ptr<Region>
 493 AudioTrack::bounce (InterThreadInfo& itt)
 494 {
 495         return bounce_range (_session.current_start_frame(), _session.current_end_frame(), itt, main_outs(), false);
 496 }
 497
 498 boost::shared_ptr<Region>
 499 AudioTrack::bounce_range (framepos_t start, framepos_t end, InterThreadInfo& itt,
 500                           boost::shared_ptr<Processor> endpoint, bool include_endpoint)
 501 {
 502         vector<boost::shared_ptr<Source> > srcs;
 503         return _session.write_one_track (*this, start, end, false, srcs, itt, endpoint, include_endpoint, false, false);
 504 }
 505
 506 void
 507 AudioTrack::freeze_me (InterThreadInfo& itt)
 508 {
 509         vector<boost::shared_ptr<Source> > srcs;
 510         string new_playlist_name;
 511         boost::shared_ptr<Playlist> new_playlist;
 512         string dir;
 513         string region_name;
 514         boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 515
 516         if ((_freeze_record.playlist = boost::dynamic_pointer_cast<AudioPlaylist>(diskstream->playlist())) == 0) {
 517                 return;
 518         }
 519
 520         uint32_t n = 1;
 521
 522         while (n < (UINT_MAX-1)) {
 523
 524                 string candidate;
 525
 526                 candidate = string_compose ("<F%2>%1", _freeze_record.playlist->name(), n);
 527
 528                 if (_session.playlists->by_name (candidate) == 0) {
 529                         new_playlist_name = candidate;
 530                         break;
 531                 }
 532
 533                 ++n;
 534
 535         }
 536
 537         if (n == (UINT_MAX-1)) {
 538           error << string_compose (X_("There are too many frozen versions of playlist \"%1\""
 539                             " to create another one"), _freeze_record.playlist->name())
 540                << endmsg;
 541                 return;
 542         }
 543
 544         boost::shared_ptr<Region> res;
 545
 546         if ((res = _session.write_one_track (*this, _session.current_start_frame(), _session.current_end_frame(),
 547                                         true, srcs, itt, main_outs(), false, false, true)) == 0) {
 548                 return;
 549         }
 550
 551         _freeze_record.processor_info.clear ();
 552
 553         {
 554                 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
 555
 556                 for (ProcessorList::iterator r = _processors.begin(); r != _processors.end(); ++r) {
 557
 558                         if ((*r)->does_routing() && (*r)->active()) {
 559                                 break;
 560                         }
 561                         if (!boost::dynamic_pointer_cast<PeakMeter>(*r)) {
 562
 563                                 FreezeRecordProcessorInfo* frii  = new FreezeRecordProcessorInfo ((*r)->get_state(), (*r));
 564
 565                                 frii->id = (*r)->id();
 566
 567                                 _freeze_record.processor_info.push_back (frii);
 568
 569                                 /* now deactivate the processor, */
 570                                 if (!boost::dynamic_pointer_cast<Amp>(*r)) {
 571                                         (*r)->deactivate ();
 572                                 }
 573                         }
 574
 575                         _session.set_dirty ();
 576                 }
 577         }
 578
 579         new_playlist = PlaylistFactory::create (DataType::AUDIO, _session, new_playlist_name, false);
 580
 581         /* XXX need main outs automation state _freeze_record.pan_automation_state = _mainpanner->automation_state(); */
 582
 583         region_name = new_playlist_name;
 584
 585         /* create a new region from all filesources, keep it private */
 586
 587         PropertyList plist;
 588
 589         plist.add (Properties::start, 0);
 590         plist.add (Properties::length, srcs[0]->length(srcs[0]->timeline_position()));
 591         plist.add (Properties::name, region_name);
 592         plist.add (Properties::whole_file, true);
 593
 594         boost::shared_ptr<Region> region (RegionFactory::create (srcs, plist, false));
 595
 596         new_playlist->set_orig_track_id (id());
 597         new_playlist->add_region (region, _session.current_start_frame());
 598         new_playlist->set_frozen (true);
 599         region->set_locked (true);
 600
 601         diskstream->use_playlist (boost::dynamic_pointer_cast<AudioPlaylist>(new_playlist));
 602         diskstream->set_record_enabled (false);
 603
 604         /* reset stuff that has already been accounted for in the freeze process */
 605
 606         set_gain (GAIN_COEFF_UNITY, this);
 607         _amp->gain_control()->set_automation_state (Off);
 608         /* XXX need to use _main_outs _panner->set_automation_state (Off); */
 609
 610         _freeze_record.state = Frozen;
 611         FreezeChange(); /* EMIT SIGNAL */
 612 }
 613
 614 void
 615 AudioTrack::unfreeze ()
 616 {
 617         if (_freeze_record.playlist) {
 618                 audio_diskstream()->use_playlist (_freeze_record.playlist);
 619
 620                 {
 621                         Glib::Threads::RWLock::ReaderLock lm (_processor_lock); // should this be a write lock? jlc
 622                         for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
 623                                 for (vector<FreezeRecordProcessorInfo*>::iterator ii = _freeze_record.processor_info.begin(); ii != _freeze_record.processor_info.end(); ++ii) {
 624                                         if ((*ii)->id == (*i)->id()) {
 625                                                 (*i)->set_state (((*ii)->state), Stateful::current_state_version);
 626                                                 break;
 627                                         }
 628                                 }
 629                         }
 630                 }
 631
 632                 _freeze_record.playlist.reset ();
 633                 /* XXX need to use _main_outs _panner->set_automation_state (_freeze_record.pan_automation_state); */
 634         }
 635
 636         _freeze_record.state = UnFrozen;
 637         FreezeChange (); /* EMIT SIGNAL */
 638 }
 639
 640 boost::shared_ptr<AudioFileSource>
 641 AudioTrack::write_source (uint32_t n)
 642 {
 643         boost::shared_ptr<AudioDiskstream> ds = boost::dynamic_pointer_cast<AudioDiskstream> (_diskstream);
 644         assert (ds);
 645         return ds->write_source (n);
 646 }
 647
 648 boost::shared_ptr<Diskstream>
 649 AudioTrack::diskstream_factory (XMLNode const & node)
 650 {
 651         return boost::shared_ptr<Diskstream> (new AudioDiskstream (_session, node));
 652 }