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
  21 #include "pbd/error.h"
  22 #include "pbd/enumwriter.h"
  23 #include "pbd/boost_debug.h"
  24
  25 #include "evoral/Curve.hpp"
  26
  27 #include "ardour/amp.h"
  28 #include "ardour/audio_buffer.h"
  29 #include "ardour/audio_diskstream.h"
  30 #include "ardour/audio_track.h"
  31 #include "ardour/audioplaylist.h"
  32 #include "ardour/audioregion.h"
  33 #include "ardour/audiosource.h"
  34 #include "ardour/buffer_set.h"
  35 #include "ardour/io_processor.h"
  36 #include "ardour/panner.h"
  37 #include "ardour/meter.h"
  38 #include "ardour/playlist_factory.h"
  39 #include "ardour/plugin_insert.h"
  40 #include "ardour/processor.h"
  41 #include "ardour/region_factory.h"
  42 #include "ardour/route_group_specialized.h"
  43 #include "ardour/session.h"
  44 #include "ardour/utils.h"
  45 #include "ardour/session_playlists.h"
  46 #include "i18n.h"
  47
  48 using namespace std;
  49 using namespace ARDOUR;
  50 using namespace PBD;
  51
  52 AudioTrack::AudioTrack (Session& sess, string name, Route::Flag flag, TrackMode mode)
  53         : Track (sess, name, flag, mode)
  54 {
  55 }
  56
  57 AudioTrack::~AudioTrack ()
  58 {
  59 }
  60
  61 void
  62 AudioTrack::use_new_diskstream ()
  63 {
  64         AudioDiskstream::Flag dflags = AudioDiskstream::Flag (0);
  65
  66         if (_flags & Hidden) {
  67                 dflags = AudioDiskstream::Flag (dflags | AudioDiskstream::Hidden);
  68         } else {
  69                 dflags = AudioDiskstream::Flag (dflags | AudioDiskstream::Recordable);
  70         }
  71
  72         if (_mode == Destructive) {
  73                 dflags = AudioDiskstream::Flag (dflags | AudioDiskstream::Destructive);
  74         } else if (_mode == NonLayered){
  75                 dflags = AudioDiskstream::Flag(dflags | AudioDiskstream::NonLayered);
  76         }
  77
  78         AudioDiskstream* dsp (new AudioDiskstream (_session, name(), dflags));
  79         boost::shared_ptr<AudioDiskstream> ds (dsp);
  80
  81         _session.add_diskstream (ds);
  82
  83         set_diskstream (ds);
  84 }
  85
  86 void
  87 AudioTrack::set_diskstream (boost::shared_ptr<Diskstream> ds)
  88 {
  89         _diskstream = ds;
  90         _diskstream->set_route (*this);
  91         _diskstream->set_destructive (_mode == Destructive);
  92         _diskstream->set_non_layered (_mode == NonLayered);
  93
  94         if (audio_diskstream()->deprecated_io_node) {
  95
  96                 if (!IO::connecting_legal) {
  97                         IO::ConnectingLegal.connect_same_thread (*this, boost::bind (&AudioTrack::deprecated_use_diskstream_connections, this));
  98                 } else {
  99                         deprecated_use_diskstream_connections ();
 100                 }
 101         }
 102
 103         _diskstream->set_record_enabled (false);
 104         _diskstream->monitor_input (false);
 105
 106         DiskstreamChanged (); /* EMIT SIGNAL */
 107 }
 108
 109 boost::shared_ptr<AudioDiskstream>
 110 AudioTrack::audio_diskstream() const
 111 {
 112         return boost::dynamic_pointer_cast<AudioDiskstream>(_diskstream);
 113 }
 114
 115 int
 116 AudioTrack::set_mode (TrackMode m)
 117 {
 118         if (m != _mode) {
 119
 120                 if (_diskstream->set_destructive (m == Destructive)) {
 121                         return -1;
 122                 }
 123
 124                 _diskstream->set_non_layered (m == NonLayered);
 125                 _mode = m;
 126
 127                 TrackModeChanged (); /* EMIT SIGNAL */
 128         }
 129
 130         return 0;
 131 }
 132
 133 bool
 134 AudioTrack::can_use_mode (TrackMode m, bool& bounce_required)
 135 {
 136         switch (m) {
 137         case NonLayered:
 138         case Normal:
 139                 bounce_required = false;
 140                 return true;
 141
 142         case Destructive:
 143         default:
 144                 return _diskstream->can_become_destructive (bounce_required);
 145         }
 146 }
 147
 148 int
 149 AudioTrack::deprecated_use_diskstream_connections ()
 150 {
 151         boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 152
 153         if (diskstream->deprecated_io_node == 0) {
 154                 return 0;
 155         }
 156
 157         const XMLProperty* prop;
 158         XMLNode& node (*diskstream->deprecated_io_node);
 159
 160         /* don't do this more than once. */
 161
 162         diskstream->deprecated_io_node = 0;
 163
 164         if ((prop = node.property ("gain")) != 0) {
 165                 _amp->set_gain (atof (prop->value().c_str()), this);
 166         }
 167
 168         if ((prop = node.property ("input-connection")) != 0) {
 169                 boost::shared_ptr<Bundle> c = _session.bundle_by_name (prop->value());
 170
 171                 if (c == 0) {
 172                         error << string_compose(_("Unknown bundle \"%1\" listed for input of %2"), prop->value(), _name) << endmsg;
 173
 174                         if ((c = _session.bundle_by_name (_("in 1"))) == 0) {
 175                                 error << _("No input bundles available as a replacement")
 176                                 << endmsg;
 177                                 return -1;
 178                         } else {
 179                                 info << string_compose (_("Bundle %1 was not available - \"in 1\" used instead"), prop->value())
 180                                << endmsg;
 181                         }
 182                 }
 183
 184                 _input->connect_ports_to_bundle (c, this);
 185
 186         } else if ((prop = node.property ("inputs")) != 0) {
 187                 if (_input->set_ports (prop->value())) {
 188                         error << string_compose(_("improper input channel list in XML node (%1)"), prop->value()) << endmsg;
 189                         return -1;
 190                 }
 191         }
 192
 193         return 0;
 194 }
 195
 196 int
 197 AudioTrack::set_state (const XMLNode& node, int version)
 198 {
 199         return _set_state (node, version, true);
 200 }
 201
 202 int
 203 AudioTrack::_set_state (const XMLNode& node, int version, bool call_base)
 204 {
 205         const XMLProperty *prop;
 206         XMLNodeConstIterator iter;
 207
 208         if (call_base) {
 209                 if (Route::_set_state (node, version, call_base)) {
 210                         return -1;
 211                 }
 212         }
 213
 214         if ((prop = node.property (X_("mode"))) != 0) {
 215                 _mode = TrackMode (string_2_enum (prop->value(), _mode));
 216         } else {
 217                 _mode = Normal;
 218         }
 219
 220         XMLNodeList nlist;
 221         XMLNodeConstIterator niter;
 222         XMLNode *child;
 223
 224         nlist = node.children();
 225         for (niter = nlist.begin(); niter != nlist.end(); ++niter){
 226                 child = *niter;
 227
 228                 if (child->name() == X_("recenable")) {
 229                         _rec_enable_control->set_state (*child, version);
 230                         _session.add_controllable (_rec_enable_control);
 231                 }
 232         }
 233
 234         pending_state = const_cast<XMLNode*> (&node);
 235
 236         if (_session.state_of_the_state() & Session::Loading) {
 237                 _session.StateReady.connect_same_thread (*this, boost::bind (&AudioTrack::set_state_part_two, this));
 238         } else {
 239                 set_state_part_two ();
 240         }
 241
 242         return 0;
 243 }
 244
 245 XMLNode&
 246 AudioTrack::state(bool full_state)
 247 {
 248         XMLNode& root (Route::state(full_state));
 249         XMLNode* freeze_node;
 250         char buf[64];
 251
 252         if (_freeze_record.playlist) {
 253                 XMLNode* inode;
 254
 255                 freeze_node = new XMLNode (X_("freeze-info"));
 256                 freeze_node->add_property ("playlist", _freeze_record.playlist->name());
 257                 freeze_node->add_property ("state", enum_2_string (_freeze_record.state));
 258
 259                 for (vector<FreezeRecordProcessorInfo*>::iterator i = _freeze_record.processor_info.begin(); i != _freeze_record.processor_info.end(); ++i) {
 260                         inode = new XMLNode (X_("processor"));
 261                         (*i)->id.print (buf, sizeof (buf));
 262                         inode->add_property (X_("id"), buf);
 263                         inode->add_child_copy ((*i)->state);
 264
 265                         freeze_node->add_child_nocopy (*inode);
 266                 }
 267
 268                 root.add_child_nocopy (*freeze_node);
 269         }
 270
 271         /* Alignment: act as a proxy for the diskstream */
 272
 273         XMLNode* align_node = new XMLNode (X_("Alignment"));
 274         AlignStyle as = _diskstream->alignment_style ();
 275         align_node->add_property (X_("style"), enum_2_string (as));
 276         root.add_child_nocopy (*align_node);
 277
 278         root.add_property (X_("mode"), enum_2_string (_mode));
 279
 280         /* we don't return diskstream state because we don't
 281            own the diskstream exclusively. control of the diskstream
 282            state is ceded to the Session, even if we create the
 283            diskstream.
 284         */
 285
 286         _diskstream->id().print (buf, sizeof (buf));
 287         root.add_property ("diskstream-id", buf);
 288
 289         root.add_child_nocopy (_rec_enable_control->get_state());
 290
 291         return root;
 292 }
 293
 294 void
 295 AudioTrack::set_state_part_two ()
 296 {
 297         XMLNode* fnode;
 298         XMLProperty* prop;
 299         LocaleGuard lg (X_("POSIX"));
 300
 301         /* This is called after all session state has been restored but before
 302            have been made ports and connections are established.
 303         */
 304
 305         if (pending_state == 0) {
 306                 return;
 307         }
 308
 309         if ((fnode = find_named_node (*pending_state, X_("freeze-info"))) != 0) {
 310
 311                 _freeze_record.state = Frozen;
 312
 313                 for (vector<FreezeRecordProcessorInfo*>::iterator i = _freeze_record.processor_info.begin(); i != _freeze_record.processor_info.end(); ++i) {
 314                         delete *i;
 315                 }
 316                 _freeze_record.processor_info.clear ();
 317
 318                 if ((prop = fnode->property (X_("playlist"))) != 0) {
 319                         boost::shared_ptr<Playlist> pl = _session.playlists->by_name (prop->value());
 320                         if (pl) {
 321                                 _freeze_record.playlist = boost::dynamic_pointer_cast<AudioPlaylist> (pl);
 322                         } else {
 323                                 _freeze_record.playlist.reset ();
 324                                 _freeze_record.state = NoFreeze;
 325                         return;
 326                         }
 327                 }
 328
 329                 if ((prop = fnode->property (X_("state"))) != 0) {
 330                         _freeze_record.state = FreezeState (string_2_enum (prop->value(), _freeze_record.state));
 331                 }
 332
 333                 XMLNodeConstIterator citer;
 334                 XMLNodeList clist = fnode->children();
 335
 336                 for (citer = clist.begin(); citer != clist.end(); ++citer) {
 337                         if ((*citer)->name() != X_("processor")) {
 338                                 continue;
 339                         }
 340
 341                         if ((prop = (*citer)->property (X_("id"))) == 0) {
 342                                 continue;
 343                         }
 344
 345                         FreezeRecordProcessorInfo* frii = new FreezeRecordProcessorInfo (*((*citer)->children().front()),
 346                                                                                    boost::shared_ptr<Processor>());
 347                         frii->id = prop->value ();
 348                         _freeze_record.processor_info.push_back (frii);
 349                 }
 350         }
 351
 352         /* Alignment: act as a proxy for the diskstream */
 353
 354         if ((fnode = find_named_node (*pending_state, X_("Alignment"))) != 0) {
 355
 356                 if ((prop = fnode->property (X_("style"))) != 0) {
 357
 358                         /* fix for older sessions from before EnumWriter */
 359
 360                         string pstr;
 361
 362                         if (prop->value() == "capture") {
 363                                 pstr = "CaptureTime";
 364                         } else if (prop->value() == "existing") {
 365                                 pstr = "ExistingMaterial";
 366                         } else {
 367                                 pstr = prop->value();
 368                         }
 369
 370                         AlignStyle as = AlignStyle (string_2_enum (pstr, as));
 371                         _diskstream->set_persistent_align_style (as);
 372                 }
 373         }
 374         return;
 375 }
 376
 377 int
 378 AudioTrack::roll (nframes_t nframes, sframes_t start_frame, sframes_t end_frame, int declick,
 379                   bool can_record, bool rec_monitors_input, bool& need_butler)
 380 {
 381         int dret;
 382         Sample* b;
 383         Sample* tmpb;
 384         nframes_t transport_frame;
 385         boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 386
 387         {
 388                 Glib::RWLock::ReaderLock lm (_processor_lock, Glib::TRY_LOCK);
 389                 if (lm.locked()) {
 390                         // automation snapshot can also be called from the non-rt context
 391                         // and it uses the redirect list, so we take the lock out here
 392                         automation_snapshot (start_frame, false);
 393                 }
 394         }
 395
 396         if (n_outputs().n_total() == 0 && _processors.empty()) {
 397                 return 0;
 398         }
 399
 400         if (!_active) {
 401                 silence (nframes);
 402                 return 0;
 403         }
 404
 405         transport_frame = _session.transport_frame();
 406
 407         if ((nframes = check_initial_delay (nframes, transport_frame)) == 0) {
 408
 409                 /* need to do this so that the diskstream sets its
 410                    playback distance to zero, thus causing diskstream::commit
 411                    to do nothing.
 412                 */
 413                 return diskstream->process (transport_frame, 0, can_record, rec_monitors_input, need_butler);
 414         }
 415
 416         _silent = false;
 417         _amp->apply_gain_automation(false);
 418
 419         if ((dret = diskstream->process (transport_frame, nframes, can_record, rec_monitors_input, need_butler)) != 0) {
 420                 silence (nframes);
 421                 return dret;
 422         }
 423
 424         /* special condition applies */
 425
 426         if (_meter_point == MeterInput) {
 427                 _input->process_input (_meter, start_frame, end_frame, nframes);
 428         }
 429
 430         if (diskstream->record_enabled() && !can_record && !_session.config.get_auto_input()) {
 431
 432                 /* not actually recording, but we want to hear the input material anyway,
 433                    at least potentially (depending on monitoring options)
 434                  */
 435
 436                 passthru (start_frame, end_frame, nframes, false);
 437
 438         } else if ((b = diskstream->playback_buffer(0)) != 0) {
 439
 440                 /*
 441                   XXX is it true that the earlier test on n_outputs()
 442                   means that we can avoid checking it again here? i think
 443                   so, because changing the i/o configuration of an IO
 444                   requires holding the AudioEngine lock, which we hold
 445                   while in the process() tree.
 446                 */
 447
 448
 449                 /* copy the diskstream data to all output buffers */
 450
 451                 size_t limit = input_streams ().n_audio();
 452                 BufferSet& bufs = _session.get_scratch_buffers ();
 453                 const size_t blimit = bufs.count().n_audio();
 454
 455                 uint32_t n;
 456                 uint32_t i;
 457
 458                 if (limit > blimit) {
 459
 460                         /* example case: auditioner configured for stereo output,
 461                            but loaded with an 8 channel file. there are only
 462                            2 passthrough buffers, but n_process_buffers() will
 463                            return 8.
 464
 465                            arbitrary decision: map all channels in the diskstream
 466                            to the outputs available.
 467                         */
 468
 469                         float scaling = limit/blimit;
 470
 471                         for (i = 0, n = 1; i < blimit; ++i, ++n) {
 472
 473                                 /* first time through just copy a channel into
 474                                    the output buffer.
 475                                 */
 476
 477                                 Sample* bb = bufs.get_audio (i).data();
 478
 479                                 for (nframes_t xx = 0; xx < nframes; ++xx) {
 480                                         bb[xx] = b[xx] * scaling;
 481                                 }
 482
 483                                 if (n < diskstream->n_channels().n_audio()) {
 484                                         tmpb = diskstream->playback_buffer(n);
 485                                         if (tmpb!=0) {
 486                                                 b = tmpb;
 487                                         }
 488                                 }
 489                         }
 490
 491                         for (;i < limit; ++i, ++n) {
 492
 493                                 /* for all remaining channels, sum with existing
 494                                    data in the output buffers
 495                                 */
 496
 497                                 bufs.get_audio (i%blimit).accumulate_with_gain_from (b, nframes, 0, scaling);
 498
 499                                 if (n < diskstream->n_channels().n_audio()) {
 500                                         tmpb = diskstream->playback_buffer(n);
 501                                         if (tmpb!=0) {
 502                                                 b = tmpb;
 503                                         }
 504                                 }
 505
 506                         }
 507
 508                         limit = blimit;
 509
 510                 } else {
 511                         for (i = 0, n = 1; i < limit; ++i, ++n) {
 512                                 memcpy (bufs.get_audio (i).data(), b, sizeof (Sample) * nframes);
 513                                 if (n < diskstream->n_channels().n_audio()) {
 514                                         tmpb = diskstream->playback_buffer(n);
 515                                         if (tmpb!=0) {
 516                                                 b = tmpb;
 517                                         }
 518                                 }
 519                         }
 520
 521                         /* try to leave any MIDI buffers alone */
 522
 523                         ChanCount chn;
 524                         chn.set_audio (limit);
 525                         chn.set_midi (_input->n_ports().n_midi());
 526                         bufs.set_count (chn);
 527                 }
 528
 529                 /* don't waste time with automation if we're recording or we've just stopped (yes it can happen) */
 530
 531                 if (!diskstream->record_enabled() && _session.transport_rolling()) {
 532 #ifdef XXX_MOVE_THIS_TO_AMP
 533                         Glib::Mutex::Lock am (data().control_lock(), Glib::TRY_LOCK);
 534
 535                         if (am.locked() && gain_control()->automation_playback()) {
 536                                 _amp->apply_gain_automation(
 537                                                 gain_control()->list()->curve().rt_safe_get_vector (
 538                                                         start_frame, end_frame, _session.gain_automation_buffer(), nframes));
 539                         }
 540 #endif
 541                 }
 542
 543                 process_output_buffers (bufs, start_frame, end_frame, nframes, (!_session.get_record_enabled() || !Config->get_do_not_record_plugins()), declick);
 544
 545         } else {
 546                 /* problem with the diskstream; just be quiet for a bit */
 547                 silence (nframes);
 548         }
 549
 550         return 0;
 551 }
 552
 553 int
 554 AudioTrack::export_stuff (BufferSet& buffers, sframes_t start, nframes_t nframes, bool enable_processing)
 555 {
 556         gain_t  gain_buffer[nframes];
 557         float   mix_buffer[nframes];
 558         ProcessorList::iterator i;
 559         boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 560
 561         Glib::RWLock::ReaderLock rlock (_processor_lock);
 562
 563         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(diskstream->playlist());
 564         assert(apl);
 565
 566         assert(buffers.get_audio(0).capacity() >= nframes);
 567
 568         if (apl->read (buffers.get_audio(0).data(), mix_buffer, gain_buffer, start, nframes) != nframes) {
 569                 return -1;
 570         }
 571
 572         assert(buffers.count().n_audio() >= 1);
 573         uint32_t n=1;
 574         Sample* b = buffers.get_audio(0).data();
 575         BufferSet::audio_iterator bi = buffers.audio_begin();
 576         ++bi;
 577         for ( ; bi != buffers.audio_end(); ++bi, ++n) {
 578                 if (n < diskstream->n_channels().n_audio()) {
 579                         if (apl->read (bi->data(), mix_buffer, gain_buffer, start, nframes, n) != nframes) {
 580                                 return -1;
 581                         }
 582                         b = bi->data();
 583                 }
 584                 else {
 585                         /* duplicate last across remaining buffers */
 586                         memcpy (bi->data(), b, sizeof (Sample) * nframes);
 587                 }
 588         }
 589
 590         // If no processing is required, there's no need to go any further.
 591         if (!enable_processing) {
 592                 return 0;
 593         }
 594
 595         /* note: only run processors during export. other layers in the machinery
 596            will already have checked that there are no external port processors.
 597         */
 598
 599         for (i = _processors.begin(); i != _processors.end(); ++i) {
 600                 boost::shared_ptr<Processor> processor;
 601                 if ((processor = boost::dynamic_pointer_cast<Processor>(*i)) != 0) {
 602                         processor->run (buffers, start, start+nframes, nframes, true);
 603                 }
 604         }
 605
 606         return 0;
 607 }
 608
 609 boost::shared_ptr<Region>
 610 AudioTrack::bounce (InterThreadInfo& itt)
 611 {
 612         vector<boost::shared_ptr<Source> > srcs;
 613         return _session.write_one_track (*this, _session.current_start_frame(), _session.current_end_frame(), false, srcs, itt);
 614 }
 615
 616 boost::shared_ptr<Region>
 617 AudioTrack::bounce_range (nframes_t start, nframes_t end, InterThreadInfo& itt, bool enable_processing)
 618 {
 619         vector<boost::shared_ptr<Source> > srcs;
 620         return _session.write_one_track (*this, start, end, false, srcs, itt, enable_processing);
 621 }
 622
 623 void
 624 AudioTrack::freeze_me (InterThreadInfo& itt)
 625 {
 626         vector<boost::shared_ptr<Source> > srcs;
 627         string new_playlist_name;
 628         boost::shared_ptr<Playlist> new_playlist;
 629         string dir;
 630         string region_name;
 631         boost::shared_ptr<AudioDiskstream> diskstream = audio_diskstream();
 632
 633         if ((_freeze_record.playlist = boost::dynamic_pointer_cast<AudioPlaylist>(diskstream->playlist())) == 0) {
 634                 return;
 635         }
 636
 637         uint32_t n = 1;
 638
 639         while (n < (UINT_MAX-1)) {
 640
 641                 string candidate;
 642
 643                 candidate = string_compose ("<F%2>%1", _freeze_record.playlist->name(), n);
 644
 645                 if (_session.playlists->by_name (candidate) == 0) {
 646                         new_playlist_name = candidate;
 647                         break;
 648                 }
 649
 650                 ++n;
 651
 652         }
 653
 654         if (n == (UINT_MAX-1)) {
 655           error << string_compose (X_("There are too many frozen versions of playlist \"%1\""
 656                             " to create another one"), _freeze_record.playlist->name())
 657                << endmsg;
 658                 return;
 659         }
 660
 661         boost::shared_ptr<Region> res;
 662
 663         if ((res = _session.write_one_track (*this, _session.current_start_frame(), _session.current_end_frame(), true, srcs, itt)) == 0) {
 664                 return;
 665         }
 666
 667         _freeze_record.processor_info.clear ();
 668
 669         {
 670                 Glib::RWLock::ReaderLock lm (_processor_lock);
 671
 672                 for (ProcessorList::iterator r = _processors.begin(); r != _processors.end(); ++r) {
 673
 674                         boost::shared_ptr<Processor> processor;
 675
 676                         if ((processor = boost::dynamic_pointer_cast<Processor>(*r)) != 0) {
 677
 678                                 FreezeRecordProcessorInfo* frii  = new FreezeRecordProcessorInfo ((*r)->get_state(), processor);
 679
 680                                 frii->id = processor->id();
 681
 682                                 _freeze_record.processor_info.push_back (frii);
 683
 684                                 /* now deactivate the processor */
 685
 686                                 processor->deactivate ();
 687                                 _session.set_dirty ();
 688                         }
 689                 }
 690         }
 691
 692         new_playlist = PlaylistFactory::create (DataType::AUDIO, _session, new_playlist_name, false);
 693
 694         _freeze_record.gain = _amp->gain();
 695         _freeze_record.gain_automation_state = _amp->gain_control()->automation_state();
 696         /* XXX need main outs automation state _freeze_record.pan_automation_state = _mainpanner->automation_state(); */
 697
 698         region_name = new_playlist_name;
 699
 700         /* create a new region from all filesources, keep it private */
 701
 702         PropertyList plist;
 703
 704         plist.add (Properties::start, 0);
 705         plist.add (Properties::length, srcs[0]->length(srcs[0]->timeline_position()));
 706         plist.add (Properties::name, region_name);
 707         plist.add (Properties::whole_file, true);
 708
 709         boost::shared_ptr<Region> region (RegionFactory::create (srcs, plist, false));
 710
 711         new_playlist->set_orig_diskstream_id (diskstream->id());
 712         new_playlist->add_region (region, _session.current_start_frame());
 713         new_playlist->set_frozen (true);
 714         region->set_locked (true);
 715
 716         diskstream->use_playlist (boost::dynamic_pointer_cast<AudioPlaylist>(new_playlist));
 717         diskstream->set_record_enabled (false);
 718
 719         /* reset stuff that has already been accounted for in the freeze process */
 720
 721         set_gain (1.0, this);
 722         _amp->gain_control()->set_automation_state (Off);
 723         /* XXX need to use _main_outs _panner->set_automation_state (Off); */
 724
 725         _freeze_record.state = Frozen;
 726         FreezeChange(); /* EMIT SIGNAL */
 727 }
 728
 729 void
 730 AudioTrack::unfreeze ()
 731 {
 732         if (_freeze_record.playlist) {
 733                 audio_diskstream()->use_playlist (_freeze_record.playlist);
 734
 735                 {
 736                         Glib::RWLock::ReaderLock lm (_processor_lock); // should this be a write lock? jlc
 737                         for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
 738                                 for (vector<FreezeRecordProcessorInfo*>::iterator ii = _freeze_record.processor_info.begin(); ii != _freeze_record.processor_info.end(); ++ii) {
 739                                         if ((*ii)->id == (*i)->id()) {
 740                                                 (*i)->set_state (((*ii)->state), Stateful::current_state_version);
 741                                                 break;
 742                                         }
 743                                 }
 744                         }
 745                 }
 746
 747                 _freeze_record.playlist.reset ();
 748                 set_gain (_freeze_record.gain, this);
 749                 _amp->gain_control()->set_automation_state (_freeze_record.gain_automation_state);
 750                 /* XXX need to use _main_outs _panner->set_automation_state (_freeze_record.pan_automation_state); */
 751         }
 752
 753         _freeze_record.state = UnFrozen;
 754         FreezeChange (); /* EMIT SIGNAL */
 755 }
 756