2 Copyright (C) 2000 Paul Davis
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.
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.
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.
20 #ifndef __ardour_session_h__
21 #define __ardour_session_h__
23 #include "libardour-config.h"
32 #include <boost/dynamic_bitset.hpp>
33 #include <boost/scoped_ptr.hpp>
34 #include <boost/weak_ptr.hpp>
35 #include <boost/utility.hpp>
37 #include <glibmm/threads.h>
39 #include "pbd/error.h"
40 #include "pbd/event_loop.h"
42 #include "pbd/statefuldestructible.h"
43 #include "pbd/signals.h"
46 #include "evoral/types.hpp"
48 #include "midi++/types.h"
50 #include "timecode/time.h"
52 #include "ardour/ardour.h"
53 #include "ardour/chan_count.h"
54 #include "ardour/delivery.h"
55 #include "ardour/interthread_info.h"
56 #include "ardour/rc_configuration.h"
57 #include "ardour/session_configuration.h"
58 #include "ardour/session_event.h"
59 #include "ardour/location.h"
60 #include "ardour/interpolation.h"
61 #include "ardour/route_graph.h"
63 #ifdef HAVE_JACK_SESSION
64 #include <jack/session.h>
74 typedef struct _AEffect AEffect;
84 class ControllableDescriptor;
95 class AudioFileSource;
100 class AutomationList;
113 class MidiClockTicker;
131 class SessionDirectory;
132 class SessionMetadata;
133 class SessionPlaylists;
139 class WindowsVSTPlugin;
141 extern void setup_enum_writer ();
143 class Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
152 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
153 the bus profile can be null if no master out bus is required.
156 Session (AudioEngine&,
157 const std::string& fullpath,
158 const std::string& snapshot_name,
159 BusProfile* bus_profile = 0,
160 std::string mix_template = "");
164 std::string path() const { return _path; }
165 std::string name() const { return _name; }
166 std::string snap_name() const { return _current_snapshot_name; }
167 std::string raid_path () const;
168 bool path_is_within_session (const std::string&);
170 void set_snap_name ();
172 bool writable() const { return _writable; }
175 bool dirty() const { return _state_of_the_state & Dirty; }
176 void set_deletion_in_progress ();
177 void clear_deletion_in_progress ();
178 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
179 PBD::Signal0<void> DirtyChanged;
181 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
183 static PBD::Signal1<void,std::string> Dialog;
185 int ensure_subdirs ();
187 std::string automation_dir () const; ///< Automation data
188 std::string analysis_dir () const; ///< Analysis data
189 std::string plugins_dir () const; ///< Plugin state
190 std::string externals_dir () const; ///< Links to external files
192 std::string peak_path (std::string) const;
194 std::string change_source_path_by_name (std::string oldpath, std::string oldname, std::string newname, bool destructive);
196 std::string peak_path_from_audio_path (std::string) const;
197 std::string new_audio_source_name (const std::string&, uint32_t nchans, uint32_t chan, bool destructive);
198 std::string new_midi_source_name (const std::string&);
199 std::string new_source_path_from_name (DataType type, const std::string&);
200 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path);
202 void process (pframes_t nframes);
204 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
205 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
206 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
208 bool have_rec_enabled_track () const;
210 bool have_captured() const { return _have_captured; }
212 void refill_all_track_buffers ();
213 Butler* butler() { return _butler; }
214 void butler_transport_work ();
216 void refresh_disk_space ();
218 int load_diskstreams_2X (XMLNode const &, int);
220 int load_routes (const XMLNode&, int);
221 boost::shared_ptr<RouteList> get_routes() const {
222 return routes.reader ();
225 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
227 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
229 uint32_t nroutes() const { return routes.reader()->size(); }
230 uint32_t ntracks () const;
231 uint32_t nbusses () const;
233 boost::shared_ptr<BundleList> bundles () {
234 return _bundles.reader ();
237 struct RoutePublicOrderSorter {
238 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
241 void notify_remote_id_change ();
242 void sync_order_keys (RouteSortOrderKey);
244 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
245 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
246 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
248 static char session_name_is_legal (const std::string&);
249 bool io_name_is_legal (const std::string&);
250 boost::shared_ptr<Route> route_by_name (std::string);
251 boost::shared_ptr<Route> route_by_id (PBD::ID);
252 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
253 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID);
254 void routes_using_input_from (const std::string& str, RouteList& rl);
256 bool route_name_unique (std::string) const;
257 bool route_name_internal (std::string) const;
259 bool get_record_enabled() const {
260 return (record_status () >= Enabled);
263 RecordState record_status() const {
264 return (RecordState) g_atomic_int_get (&_record_status);
267 bool actively_recording () const {
268 return record_status() == Recording;
271 bool record_enabling_legal () const;
272 void maybe_enable_record ();
273 void disable_record (bool rt_context, bool force = false);
274 void step_back_from_record ();
276 void maybe_write_autosave ();
278 /* Emitted when all i/o connections are complete */
280 PBD::Signal0<void> IOConnectionsComplete;
282 /* Record status signals */
284 PBD::Signal0<void> RecordStateChanged;
286 /* Transport mechanism signals */
288 /** Emitted on the following changes in transport state:
289 * - stop (from the butler thread)
290 * - change in whether or not we are looping (from the process thread)
291 * - change in the play range (from the process thread)
292 * - start (from the process thread)
295 PBD::Signal0<void> TransportStateChange;
297 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
298 PBD::Signal1<void,framepos_t> Xrun;
299 PBD::Signal0<void> TransportLooped;
301 /** emitted when a locate has occurred */
302 PBD::Signal0<void> Located;
304 PBD::Signal1<void,RouteList&> RouteAdded;
305 /** Emitted when a property of one of our route groups changes.
306 * The parameter is the RouteGroup that has changed.
308 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
309 /** Emitted when a route is added to one of our route groups.
310 * First parameter is the RouteGroup, second is the route.
312 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
313 /** Emitted when a route is removed from one of our route groups.
314 * First parameter is the RouteGroup, second is the route.
316 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
318 /* Step Editing status changed */
319 PBD::Signal1<void,bool> StepEditStatusChange;
321 void queue_event (SessionEvent*);
323 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
324 void request_bounded_roll (framepos_t start, framepos_t end);
325 void request_stop (bool abort = false, bool clear_state = false);
326 void request_locate (framepos_t frame, bool with_roll = false);
328 void request_play_loop (bool yn, bool leave_rolling = false);
329 bool get_play_loop () const { return play_loop; }
331 framepos_t last_transport_start () const { return _last_roll_location; }
334 void use_rf_shuttle_speed ();
335 void allow_auto_play (bool yn);
336 void request_transport_speed (double speed, bool as_default = false);
337 void request_transport_speed_nonzero (double, bool as_default = false);
338 void request_overwrite_buffer (Track *);
339 void adjust_playback_buffering();
340 void adjust_capture_buffering();
341 void request_track_speed (Track *, double speed);
342 void request_input_change_handling ();
344 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
345 bool transport_locked () const;
349 framepos_t current_end_frame () const;
350 framepos_t current_start_frame () const;
351 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
352 framecnt_t frame_rate () const { return _current_frame_rate; }
353 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
354 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
355 framecnt_t frames_per_hour () const { return _frames_per_hour; }
357 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
358 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
360 MIDI::byte get_mtc_timecode_bits() const {
361 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
364 float timecode_frames_per_second() const;
365 bool timecode_drop_frames() const;
369 Locations *locations() { return _locations; }
371 PBD::Signal1<void,Location*> auto_loop_location_changed;
372 PBD::Signal1<void,Location*> auto_punch_location_changed;
373 PBD::Signal0<void> locations_modified;
375 void set_auto_punch_location (Location *);
376 void set_auto_loop_location (Location *);
377 int location_name(std::string& result, std::string base = std::string(""));
379 pframes_t get_block_size() const { return current_block_size; }
380 framecnt_t worst_output_latency () const { return _worst_output_latency; }
381 framecnt_t worst_input_latency () const { return _worst_input_latency; }
382 framecnt_t worst_track_latency () const { return _worst_track_latency; }
383 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
385 #ifdef HAVE_JACK_SESSION
386 void jack_session_event (jack_session_event_t* event);
388 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false);
389 int restore_state (std::string snapshot_name);
390 int save_template (std::string template_name);
391 int save_history (std::string snapshot_name = "");
392 int restore_history (std::string snapshot_name);
393 void remove_state (std::string snapshot_name);
394 void rename_state (std::string old_name, std::string new_name);
395 void remove_pending_capture_state ();
396 int rename (const std::string&);
398 PBD::Signal1<void,std::string> StateSaved;
399 PBD::Signal0<void> StateReady;
401 std::vector<std::string*>* possible_states() const;
402 static std::vector<std::string*>* possible_states (std::string path);
404 XMLNode& get_state();
405 int set_state(const XMLNode& node, int version); // not idempotent
406 XMLNode& get_template();
408 /// The instant xml file is written to the session directory
409 void add_instant_xml (XMLNode&, bool write_to_config = true);
410 XMLNode* instant_xml (const std::string& str);
412 enum StateOfTheState {
417 InitialConnecting = 0x8,
422 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
424 void add_route_group (RouteGroup *);
425 void remove_route_group (RouteGroup&);
426 void reorder_route_groups (std::list<RouteGroup*>);
428 RouteGroup* route_group_by_name (std::string);
429 RouteGroup& all_route_group() const;
431 PBD::Signal1<void,RouteGroup*> route_group_added;
432 PBD::Signal0<void> route_group_removed;
433 PBD::Signal0<void> route_groups_reordered;
435 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
436 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
441 std::list<RouteGroup*> const & route_groups () const {
442 return _route_groups;
445 /* fundamental operations. duh. */
447 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
450 TrackMode mode = Normal,
451 RouteGroup* route_group = 0,
452 uint32_t how_many = 1,
453 std::string name_template = ""
456 RouteList new_audio_route (
457 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
460 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
461 const ChanCount& input, const ChanCount& output,
462 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
463 TrackMode mode = Normal,
464 RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
467 void remove_route (boost::shared_ptr<Route>);
468 void resort_routes ();
469 void resort_routes_using (boost::shared_ptr<RouteList>);
471 AudioEngine & engine() { return _engine; }
472 AudioEngine const & engine () const { return _engine; }
476 framepos_t transport_frame () const {return _transport_frame; }
477 framepos_t audible_frame () const;
478 framepos_t requested_return_frame() const { return _requested_return_frame; }
492 void sync_time_vars();
494 void bbt_time (framepos_t when, Timecode::BBT_Time&);
495 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
496 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
497 void timecode_time (Timecode::Time &);
498 void timecode_time (framepos_t when, Timecode::Time&);
499 void timecode_time_subframes (framepos_t when, Timecode::Time&);
501 void timecode_duration (framecnt_t, Timecode::Time&) const;
502 void timecode_duration_string (char *, framecnt_t) const;
504 framecnt_t convert_to_frames (AnyTime const & position);
505 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
507 static PBD::Signal1<void, framepos_t> StartTimeChanged;
508 static PBD::Signal1<void, framepos_t> EndTimeChanged;
510 void request_sync_source (Slave*);
511 bool synced_to_jack() const { return config.get_external_sync() && Config->get_sync_source() == JACK; }
513 double transport_speed() const { return _transport_speed; }
514 bool transport_stopped() const { return _transport_speed == 0.0f; }
515 bool transport_rolling() const { return _transport_speed != 0.0f; }
517 void set_silent (bool yn);
518 bool silent () { return _silent; }
520 TempoMap& tempo_map() { return *_tempo_map; }
524 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
526 std::string path_from_region_name (DataType type, std::string name, std::string identifier);
528 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
529 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
530 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
532 /* source management */
534 void import_files (ImportStatus&);
535 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
536 std::string build_tmp_convert_name (std::string file);
538 boost::shared_ptr<ExportHandler> get_export_handler ();
539 boost::shared_ptr<ExportStatus> get_export_status ();
541 int start_audio_export (framepos_t position);
543 PBD::Signal1<int, framecnt_t> ProcessExport;
544 static PBD::Signal2<void,std::string, std::string> Exported;
546 void add_source (boost::shared_ptr<Source>);
547 void remove_source (boost::weak_ptr<Source>);
549 void cleanup_regions();
550 int cleanup_sources (CleanupReport&);
551 int cleanup_trash_sources (CleanupReport&);
553 int destroy_sources (std::list<boost::shared_ptr<Source> >);
555 int remove_last_capture ();
557 /** handlers should return -1 for "stop cleanup",
558 0 for "yes, delete this playlist",
559 1 for "no, don't delete this playlist".
561 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
563 /** handlers should return 0 for "ignore the rate mismatch",
564 !0 for "do not use this session"
566 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
568 /** handlers should return !0 for use pending state, 0 for ignore it.
570 static PBD::Signal0<int> AskAboutPendingState;
572 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
573 size_t, std::string const &, uint32_t, bool destructive);
575 boost::shared_ptr<MidiSource> create_midi_source_for_session (
576 Track*, std::string const &);
578 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
579 boost::shared_ptr<Source> source_by_path_and_channel (const std::string&, uint16_t);
580 uint32_t count_sources_by_origin (const std::string&);
582 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
584 /* Curves and AutomationLists (TODO when they go away) */
585 void add_automation_list(AutomationList*);
589 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
590 void audition_playlist ();
591 void audition_region (boost::shared_ptr<Region>);
592 void cancel_audition ();
593 bool is_auditioning () const;
595 PBD::Signal1<void,bool> AuditionActive;
597 /* flattening stuff */
599 boost::shared_ptr<Region> write_one_track (AudioTrack&, framepos_t start, framepos_t end,
600 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
601 boost::shared_ptr<Processor> endpoint, bool include_endpoint, bool for_export);
602 int freeze_all (InterThreadInfo&);
604 /* session-wide solo/mute/rec-enable */
606 bool soloing() const { return _non_soloed_outs_muted; }
607 bool listening() const { return _listen_cnt > 0; }
608 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
610 static const SessionEvent::RTeventCallback rt_cleanup;
612 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
613 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
614 void cancel_solo_after_disconnect (boost::shared_ptr<Route>, bool upstream, SessionEvent::RTeventCallback after = rt_cleanup);
615 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
616 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
617 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
618 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
619 void set_exclusive_input_active (boost::shared_ptr<Route> rt, bool others_on);
620 void set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
622 PBD::Signal1<void,bool> SoloActive;
623 PBD::Signal0<void> SoloChanged;
624 PBD::Signal0<void> IsolatedChanged;
626 /* monitor/master out */
628 void add_monitor_section ();
629 void remove_monitor_section ();
631 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
632 boost::shared_ptr<Route> master_out() const { return _master_out; }
634 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
635 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
636 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
637 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
638 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
639 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
640 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
642 static void set_disable_all_loaded_plugins (bool yn) {
643 _disable_all_loaded_plugins = yn;
645 static bool get_disable_all_loaded_plugins() {
646 return _disable_all_loaded_plugins;
649 uint32_t next_send_id();
650 uint32_t next_aux_send_id();
651 uint32_t next_return_id();
652 uint32_t next_insert_id();
653 void mark_send_id (uint32_t);
654 void mark_aux_send_id (uint32_t);
655 void mark_return_id (uint32_t);
656 void mark_insert_id (uint32_t);
657 void unmark_send_id (uint32_t);
658 void unmark_aux_send_id (uint32_t);
659 void unmark_return_id (uint32_t);
660 void unmark_insert_id (uint32_t);
662 /* s/w "RAID" management */
664 boost::optional<framecnt_t> available_capture_duration();
668 void add_bundle (boost::shared_ptr<Bundle>);
669 void remove_bundle (boost::shared_ptr<Bundle>);
670 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
672 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleAdded;
673 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleRemoved;
677 /* History (for editors, mixers, UIs etc.) */
679 /** Undo some transactions.
680 * @param n Number of transactions to undo.
682 void undo (uint32_t n) {
686 void redo (uint32_t n) {
690 UndoHistory& history() { return _history; }
692 uint32_t undo_depth() const { return _history.undo_depth(); }
693 uint32_t redo_depth() const { return _history.redo_depth(); }
694 std::string next_undo() const { return _history.next_undo(); }
695 std::string next_redo() const { return _history.next_redo(); }
697 void begin_reversible_command (const std::string& cmd_name);
698 void begin_reversible_command (GQuark);
699 void commit_reversible_command (Command* cmd = 0);
701 void add_command (Command *const cmd) {
702 assert (_current_trans);
703 _current_trans->add_command (cmd);
706 /** @return The list of operations that are currently in progress */
707 std::list<GQuark> const & current_operations () {
708 return _current_trans_quarks;
711 bool operation_in_progress (GQuark) const;
713 void add_commands (std::vector<Command*> const & cmds);
715 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
717 // these commands are implemented in libs/ardour/session_command.cc
718 Command* memento_command_factory(XMLNode* n);
719 Command* stateful_diff_command_factory (XMLNode *);
720 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
724 boost::shared_ptr<IO> click_io() { return _click_io; }
725 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
727 /* disk, buffer loads */
729 uint32_t playback_load ();
730 uint32_t capture_load ();
734 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
735 bool get_play_range () const { return _play_range; }
737 /* buffers for gain and pan */
739 gain_t* gain_automation_buffer () const;
740 gain_t* send_gain_automation_buffer () const;
741 pan_t** pan_automation_buffer () const;
743 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
747 static intptr_t vst_callback (
756 static PBD::Signal0<void> SendFeedback;
760 boost::shared_ptr<Speakers> get_speakers ();
764 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
765 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
767 void add_controllable (boost::shared_ptr<PBD::Controllable>);
768 void remove_controllable (PBD::Controllable*);
770 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
772 SessionConfiguration config;
774 bool exporting () const {
778 /* this is a private enum, but setup_enum_writer() needs it,
779 and i can't find a way to give that function
783 enum PostTransportWork {
784 PostTransportStop = 0x1,
785 PostTransportDuration = 0x2,
786 PostTransportLocate = 0x4,
787 PostTransportRoll = 0x8,
788 PostTransportAbort = 0x10,
789 PostTransportOverWrite = 0x20,
790 PostTransportSpeed = 0x40,
791 PostTransportAudition = 0x80,
792 PostTransportReverse = 0x100,
793 PostTransportInputChange = 0x200,
794 PostTransportCurveRealloc = 0x400,
795 PostTransportClearSubstate = 0x800,
796 PostTransportAdjustPlaybackBuffering = 0x1000,
797 PostTransportAdjustCaptureBuffering = 0x2000
806 SlaveState slave_state() const { return _slave_state; }
807 Slave* slave() const { return _slave; }
809 boost::shared_ptr<SessionPlaylists> playlists;
811 void send_mmc_locate (framepos_t);
812 int send_full_time_code (framepos_t);
814 bool step_editing() const { return (_step_editors > 0); }
816 void request_suspend_timecode_transmission ();
817 void request_resume_timecode_transmission ();
818 bool timecode_transmission_suspended () const;
820 std::string source_search_path(DataType) const;
821 void ensure_search_path_includes (const std::string& path, DataType type);
823 std::list<std::string> unknown_processors () const;
825 /** Emitted when a feedback cycle has been detected within Ardour's signal
826 processing path. Until it is fixed (by the user) some (unspecified)
827 routes will not be run.
829 static PBD::Signal0<void> FeedbackDetected;
831 /** Emitted when a graph sort has successfully completed, which means
832 that it has no feedback cycles.
834 static PBD::Signal0<void> SuccessfulGraphSort;
836 /* handlers can return an integer value:
837 0: config.set_audio_search_path() or config.set_midi_search_path() was used
838 to modify the search path and we should try to find it again.
839 1: quit entire session load
840 2: as 0, but don't ask about other missing files
841 3: don't ask about other missing files, and just mark this one missing
842 -1: just mark this one missing
843 any other value: as -1
845 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
847 /** Emitted when the session wants Ardour to quit */
848 static PBD::Signal0<void> Quit;
850 boost::shared_ptr<Port> ltc_input_port() const;
851 boost::shared_ptr<Port> ltc_output_port() const;
853 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
854 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
857 friend class AudioEngine;
858 void set_block_size (pframes_t nframes);
859 void set_frame_rate (framecnt_t nframes);
863 void schedule_curve_reallocation ();
864 void update_latency_compensation (bool force = false);
867 int create (const std::string& mix_template, BusProfile*);
871 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
872 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
873 StopPendingCapture = 0x4,
874 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
875 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
876 PendingLocate = 0x20,
879 /* stuff used in process() should be close together to
883 typedef void (Session::*process_function_type)(pframes_t);
885 AudioEngine& _engine;
886 mutable gint processing_prohibited;
887 process_function_type process_function;
888 process_function_type last_process_function;
889 bool waiting_for_sync_offset;
890 framecnt_t _base_frame_rate;
891 framecnt_t _current_frame_rate; //this includes video pullup offset
892 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
893 int transport_sub_state;
894 mutable gint _record_status;
895 framepos_t _transport_frame;
896 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
900 void maybe_update_session_range (framepos_t, framepos_t);
902 // varispeed playback
903 double _transport_speed;
904 double _default_transport_speed;
905 double _last_transport_speed;
906 double _target_transport_speed;
907 CubicInterpolation interpolation;
909 bool auto_play_legal;
910 framepos_t _last_slave_transport_frame;
911 framecnt_t maximum_output_latency;
912 framepos_t _requested_return_frame;
913 pframes_t current_block_size;
914 framecnt_t _worst_output_latency;
915 framecnt_t _worst_input_latency;
916 framecnt_t _worst_track_latency;
919 float _meter_falloff;
920 bool _non_soloed_outs_muted;
921 uint32_t _listen_cnt;
922 uint32_t _solo_isolated_cnt;
926 void initialize_latencies ();
927 void set_worst_io_latencies ();
928 void set_worst_playback_latency ();
929 void set_worst_capture_latency ();
930 void set_worst_io_latencies_x (IOChange, void *) {
931 set_worst_io_latencies ();
933 void post_capture_latency ();
934 void post_playback_latency ();
936 void update_latency_compensation_proxy (void* ignored);
938 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
940 void process_scrub (pframes_t);
941 void process_without_events (pframes_t);
942 void process_with_events (pframes_t);
943 void process_audition (pframes_t);
944 void process_export (pframes_t);
945 int process_export_fw (pframes_t);
947 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
948 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
949 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
953 static const int delta_accumulator_size = 25;
954 int delta_accumulator_cnt;
955 int32_t delta_accumulator[delta_accumulator_size];
956 int32_t average_slave_delta;
958 bool have_first_delta_accumulator;
960 SlaveState _slave_state;
961 framepos_t slave_wait_end;
963 void reset_slave_state ();
964 bool follow_slave (pframes_t);
965 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
966 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
967 void follow_slave_silently (pframes_t nframes, float slave_speed);
969 void switch_to_sync_source (SyncSource); /* !RT context */
970 void drop_sync_source (); /* !RT context */
971 void use_sync_source (Slave*); /* RT context */
973 bool post_export_sync;
974 framepos_t post_export_position;
977 bool _export_started;
978 bool _export_rolling;
980 boost::shared_ptr<ExportHandler> export_handler;
981 boost::shared_ptr<ExportStatus> export_status;
984 int stop_audio_export ();
985 void finalize_audio_export ();
986 bool _pre_export_mmc_enabled;
988 PBD::ScopedConnection export_freewheel_connection;
990 void get_track_statistics ();
991 int process_routes (pframes_t, bool& need_butler);
992 int silent_process_routes (pframes_t, bool& need_butler);
994 /** @return 1 if there is a pending declick fade-in,
995 -1 if there is a pending declick fade-out,
996 0 if there is no pending declick.
998 int get_transport_declick_required () {
999 if (transport_sub_state & PendingDeclickIn) {
1000 transport_sub_state &= ~PendingDeclickIn;
1002 } else if (transport_sub_state & PendingDeclickOut) {
1003 /* XXX: not entirely sure why we don't clear this */
1005 } else if (transport_sub_state & PendingLoopDeclickOut) {
1006 /* Return the declick out first ... */
1007 transport_sub_state &= ~PendingLoopDeclickOut;
1009 } else if (transport_sub_state & PendingLoopDeclickIn) {
1010 /* ... then the declick in on the next call */
1011 transport_sub_state &= ~PendingLoopDeclickIn;
1018 bool maybe_stop (framepos_t limit);
1019 bool maybe_sync_start (pframes_t &);
1021 void check_declick_out ();
1027 /** Number of process frames since the last MTC output (when sending MTC); used to
1028 * know when to send full MTC messages every so often.
1030 pframes_t _pframes_since_last_mtc;
1031 bool session_midi_feedback;
1034 framepos_t last_loopend;
1036 boost::scoped_ptr<SessionDirectory> _session_dir;
1039 void when_engine_running ();
1040 void graph_reordered ();
1042 /** current snapshot name, without the .ardour suffix */
1043 std::string _current_snapshot_name;
1045 XMLTree* state_tree;
1046 bool state_was_pending;
1047 StateOfTheState _state_of_the_state;
1050 int load_options (const XMLNode&);
1051 int load_state (std::string snapshot_name);
1053 framepos_t _last_roll_location;
1054 /** the session frame time at which we last rolled, located, or changed transport direction */
1055 framepos_t _last_roll_or_reversal_location;
1056 framepos_t _last_record_location;
1058 bool pending_locate_roll;
1059 framepos_t pending_locate_frame;
1060 bool pending_locate_flush;
1062 bool pending_auto_loop;
1066 static const PostTransportWork ProcessCannotProceedMask =
1068 PostTransportInputChange|
1070 PostTransportReverse|
1071 PostTransportCurveRealloc|
1072 PostTransportAudition|
1073 PostTransportLocate|
1075 PostTransportClearSubstate);
1077 gint _post_transport_work; /* accessed only atomic ops */
1078 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (&_post_transport_work); }
1079 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1080 void add_post_transport_work (PostTransportWork ptw);
1082 void schedule_playback_buffering_adjustment ();
1083 void schedule_capture_buffering_adjustment ();
1085 uint32_t cumulative_rf_motion;
1088 void set_rf_speed (float speed);
1089 void reset_rf_scale (framecnt_t frames_moved);
1091 Locations* _locations;
1092 void locations_changed ();
1093 void locations_added (Location*);
1094 void handle_locations_changed (Locations::LocationList&);
1096 PBD::ScopedConnectionList punch_connections;
1097 void auto_punch_start_changed (Location *);
1098 void auto_punch_end_changed (Location *);
1099 void auto_punch_changed (Location *);
1101 PBD::ScopedConnectionList loop_connections;
1102 void auto_loop_changed (Location *);
1103 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1105 void first_stage_init (std::string path, std::string snapshot_name);
1106 int second_stage_init ();
1107 void remove_empty_sounds ();
1109 void setup_midi_control ();
1110 int midi_read (MIDI::Port *);
1112 void enable_record ();
1114 void increment_transport_position (framecnt_t val) {
1115 if (max_framepos - val < _transport_frame) {
1116 _transport_frame = max_framepos;
1118 _transport_frame += val;
1122 void decrement_transport_position (framecnt_t val) {
1123 if (val < _transport_frame) {
1124 _transport_frame -= val;
1126 _transport_frame = 0;
1130 void post_transport_motion ();
1131 static void *session_loader_thread (void *arg);
1135 /* SessionEventManager interface */
1137 void process_event (SessionEvent*);
1138 void set_next_event ();
1139 void cleanup_event (SessionEvent*,int);
1141 /* MIDI Machine Control */
1144 void spp_continue ();
1147 void mmc_deferred_play (MIDI::MachineControl &);
1148 void mmc_stop (MIDI::MachineControl &);
1149 void mmc_step (MIDI::MachineControl &, int);
1150 void mmc_pause (MIDI::MachineControl &);
1151 void mmc_record_pause (MIDI::MachineControl &);
1152 void mmc_record_strobe (MIDI::MachineControl &);
1153 void mmc_record_exit (MIDI::MachineControl &);
1154 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1155 void mmc_fast_forward (MIDI::MachineControl &);
1156 void mmc_rewind (MIDI::MachineControl &);
1157 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1158 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1159 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1161 struct timeval last_mmc_step;
1164 typedef boost::function<bool()> MidiTimeoutCallback;
1165 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1167 MidiTimeoutList midi_timeouts;
1168 bool mmc_step_timeout ();
1170 MIDI::byte mtc_msg[16];
1171 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1172 MIDI::byte midi_msg[16];
1173 framepos_t outbound_mtc_timecode_frame;
1174 Timecode::Time transmitting_timecode_time;
1175 int next_quarter_frame_to_send;
1177 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1178 framecnt_t _frames_per_hour;
1179 framecnt_t _timecode_frames_per_hour;
1181 /* cache the most-recently requested time conversions. This helps when we
1182 * have multiple clocks showing the same time (e.g. the transport frame) */
1183 bool last_timecode_valid;
1184 framepos_t last_timecode_when;
1185 Timecode::Time last_timecode;
1187 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1189 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1192 LTCEncoder* ltc_encoder;
1193 ltcsnd_sample_t* ltc_enc_buf;
1195 Timecode::TimecodeFormat ltc_enc_tcformat;
1196 int32_t ltc_buf_off;
1197 int32_t ltc_buf_len;
1200 int32_t ltc_enc_byte;
1201 framepos_t ltc_enc_pos;
1203 framepos_t ltc_enc_off;
1205 jack_latency_range_t ltc_out_latency;
1207 void ltc_tx_initialize();
1208 void ltc_tx_cleanup();
1209 void ltc_tx_reset();
1210 void ltc_tx_resync_latency();
1211 void ltc_tx_recalculate_position();
1212 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1215 void reset_record_status ();
1217 int no_roll (pframes_t nframes);
1218 int fail_roll (pframes_t nframes);
1220 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1221 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1223 MidiControlUI* midi_control_ui;
1225 int start_midi_thread ();
1227 void set_play_loop (bool yn);
1228 void unset_play_loop ();
1229 void overwrite_some_buffers (Track *);
1230 void flush_all_inserts ();
1231 int micro_locate (framecnt_t distance);
1232 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1233 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1234 void force_locate (framepos_t frame, bool with_roll = false);
1235 void set_track_speed (Track *, double speed);
1236 void set_transport_speed (double speed, bool abort = false, bool clear_state = false, bool as_default = false);
1237 void stop_transport (bool abort = false, bool clear_state = false);
1238 void start_transport ();
1239 void realtime_stop (bool abort, bool clear_state);
1240 void realtime_locate ();
1241 void non_realtime_start_scrub ();
1242 void non_realtime_set_speed ();
1243 void non_realtime_locate ();
1244 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1245 void non_realtime_overwrite (int entry_request_count, bool& finished);
1246 void post_transport ();
1247 void engine_halted ();
1248 void xrun_recovery ();
1250 TempoMap *_tempo_map;
1251 void tempo_map_changed (const PBD::PropertyChange&);
1253 /* edit/mix groups */
1255 int load_route_groups (const XMLNode&, int);
1257 std::list<RouteGroup *> _route_groups;
1258 RouteGroup* _all_route_group;
1262 boost::shared_ptr<Graph> _process_graph;
1264 SerializedRCUManager<RouteList> routes;
1266 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save);
1267 uint32_t destructive_index;
1269 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1270 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1272 void route_processors_changed (RouteProcessorChange);
1274 bool find_route_name (std::string const &, uint32_t& id, char* name, size_t name_len, bool);
1275 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1276 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1277 bool with_lock, bool connect_inputs = true,
1278 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1279 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1283 bool solo_update_disabled;
1285 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1286 void route_mute_changed (void *src);
1287 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1288 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1289 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1291 void listen_position_changed ();
1292 void solo_control_mode_changed ();
1294 /* REGION MANAGEMENT */
1296 mutable Glib::Threads::Mutex region_lock;
1298 int load_regions (const XMLNode& node);
1299 int load_compounds (const XMLNode& node);
1301 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1302 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1303 void route_group_property_changed (RouteGroup *);
1307 mutable Glib::Threads::Mutex source_lock;
1310 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1316 SourceMap get_sources() { return sources; }
1319 int load_sources (const XMLNode& node);
1320 XMLNode& get_sources_as_xml ();
1322 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1326 void remove_playlist (boost::weak_ptr<Playlist>);
1327 void track_playlist_changed (boost::weak_ptr<Track>);
1328 void playlist_region_added (boost::weak_ptr<Region>);
1329 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1330 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1332 /* CURVES and AUTOMATION LISTS */
1333 std::map<PBD::ID, AutomationList*> automation_lists;
1335 /* DEFAULT FADE CURVES */
1337 float default_fade_steepness;
1338 float default_fade_msecs;
1342 boost::shared_ptr<Auditioner> auditioner;
1343 void set_audition (boost::shared_ptr<Region>);
1344 void non_realtime_set_audition ();
1345 boost::shared_ptr<Region> pending_audition_region;
1351 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1353 /* INSERT AND SEND MANAGEMENT */
1355 boost::dynamic_bitset<uint32_t> send_bitset;
1356 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1357 boost::dynamic_bitset<uint32_t> return_bitset;
1358 boost::dynamic_bitset<uint32_t> insert_bitset;
1362 struct space_and_path {
1363 uint32_t blocks; ///< 4kB blocks
1364 bool blocks_unknown; ///< true if blocks is unknown
1369 , blocks_unknown (true)
1373 struct space_and_path_ascending_cmp {
1374 bool operator() (space_and_path a, space_and_path b) {
1375 if (a.blocks_unknown != b.blocks_unknown) {
1376 return !a.blocks_unknown;
1378 return a.blocks > b.blocks;
1382 void setup_raid_path (std::string path);
1384 std::vector<space_and_path> session_dirs;
1385 std::vector<space_and_path>::iterator last_rr_session_dir;
1386 uint32_t _total_free_4k_blocks;
1387 /** If this is true, _total_free_4k_blocks is not definite,
1388 as one or more of the session directories' filesystems
1389 could not report free space.
1391 bool _total_free_4k_blocks_uncertain;
1392 Glib::Threads::Mutex space_lock;
1394 bool no_questions_about_missing_files;
1396 std::string get_best_session_directory_for_new_source ();
1398 mutable gint _playback_load;
1399 mutable gint _capture_load;
1403 SerializedRCUManager<BundleList> _bundles;
1404 XMLNode* _bundle_xml_node;
1405 int load_bundles (XMLNode const &);
1407 UndoHistory _history;
1408 /** current undo transaction, or 0 */
1409 UndoTransaction* _current_trans;
1410 /** GQuarks to describe the reversible commands that are currently in progress.
1411 * These may be nested, in which case more recently-started commands are toward
1412 * the front of the list.
1414 std::list<GQuark> _current_trans_quarks;
1416 void jack_timebase_callback (jack_transport_state_t, pframes_t, jack_position_t*, int);
1417 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1418 void reset_jack_connection (jack_client_t* jack);
1419 void process_rtop (SessionEvent*);
1421 void update_latency (bool playback);
1423 XMLNode& state(bool);
1426 typedef std::list<Click*> Clicks;
1429 boost::shared_ptr<IO> _click_io;
1430 boost::shared_ptr<Amp> _click_gain;
1432 Sample* click_emphasis_data;
1433 framecnt_t click_length;
1434 framecnt_t click_emphasis_length;
1435 mutable Glib::Threads::RWLock click_lock;
1437 static const Sample default_click[];
1438 static const framecnt_t default_click_length;
1439 static const Sample default_click_emphasis[];
1440 static const framecnt_t default_click_emphasis_length;
1443 framepos_t _clicks_cleared;
1444 void setup_click_sounds (int which);
1445 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1446 void clear_clicks ();
1447 void click (framepos_t start, framecnt_t nframes);
1449 std::vector<Route*> master_outs;
1451 /* range playback */
1453 std::list<AudioRange> current_audio_range;
1455 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1456 void unset_play_range ();
1461 boost::shared_ptr<Route> _master_out;
1462 boost::shared_ptr<Route> _monitor_out;
1464 void auto_connect_master_bus ();
1466 /* Windows VST support */
1468 long _windows_vst_callback (
1477 /* number of hardware ports we're using,
1478 based on max (requested,available)
1481 ChanCount n_physical_outputs;
1482 ChanCount n_physical_inputs;
1484 int find_all_sources (std::string path, std::set<std::string>& result);
1485 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1487 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1488 Glib::Threads::Mutex controllables_lock;
1489 Controllables controllables;
1491 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1493 void reset_native_file_format();
1494 bool first_file_data_format_reset;
1495 bool first_file_header_format_reset;
1497 void config_changed (std::string, bool);
1499 XMLNode& get_control_protocol_state ();
1501 void set_history_depth (uint32_t depth);
1503 static bool _disable_all_loaded_plugins;
1505 mutable bool have_looped; ///< Used in ::audible_frame(*)
1507 void update_have_rec_enabled_track ();
1508 gint _have_rec_enabled_track;
1510 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1512 /* realtime "apply to set of routes" operations */
1513 template<typename T> SessionEvent*
1514 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, bool group_override,
1515 void (Session::*method) (boost::shared_ptr<RouteList>, T, bool)) {
1516 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1517 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1518 ev->rt_return = after;
1519 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1524 void rt_cancel_solo_after_disconnect (boost::shared_ptr<RouteList>, bool upstream, bool /* ignored*/ );
1525 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1526 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1527 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1528 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1529 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1530 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1531 void rt_set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, bool group_override);
1533 /** temporary list of Diskstreams used only during load of 2.X sessions */
1534 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1536 void add_session_range_location (framepos_t, framepos_t);
1538 void setup_midi_machine_control ();
1540 void step_edit_status_change (bool);
1541 uint32_t _step_editors;
1543 /** true if timecode transmission by the transport is suspended, otherwise false */
1544 mutable gint _suspend_timecode_transmission;
1546 void update_locations_after_tempo_map_change (Locations::LocationList &);
1548 void start_time_changed (framepos_t);
1549 void end_time_changed (framepos_t);
1551 void set_track_monitor_input_status (bool);
1552 framepos_t compute_stop_limit () const;
1554 boost::shared_ptr<Speakers> _speakers;
1555 void load_nested_sources (const XMLNode& node);
1557 /** The directed graph of routes that is currently being used for audio processing
1558 and solo/mute computations.
1560 GraphEdges _current_route_graph;
1562 uint32_t next_control_id () const;
1563 bool ignore_route_processor_changes;
1565 MidiClockTicker* midi_clock;
1567 boost::shared_ptr<IO> _ltc_input;
1568 boost::shared_ptr<IO> _ltc_output;
1570 void reconnect_ltc_input ();
1571 void reconnect_ltc_output ();
1574 } // namespace ARDOUR
1576 #endif /* __ardour_session_h__ */