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__
30 #include <boost/scoped_ptr.hpp>
31 #include <boost/weak_ptr.hpp>
32 #include <boost/dynamic_bitset.hpp>
38 #include <glibmm/thread.h>
40 #include <pbd/error.h>
44 #include <pbd/statefuldestructible.h>
46 #include <midi++/types.h>
47 #include <midi++/mmc.h>
49 #include <pbd/stateful.h>
50 #include <pbd/destructible.h>
52 #include <ardour/ardour.h>
53 #include <ardour/configuration.h>
54 #include <ardour/location.h>
55 #include <ardour/gain.h>
56 #include <ardour/chan_count.h>
58 #include <ardour/smpte.h>
86 class AudioDiskstream;
88 class AudioFileSource;
105 class ControlProtocolInfo;
111 class SessionDirectory;
112 class SessionMetadata;
123 class Session : public PBD::StatefulDestructible
126 typedef std::pair<boost::weak_ptr<Route>,bool> RouteBooleanState;
127 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
128 typedef std::pair<boost::weak_ptr<Route>,MeterPoint> RouteMeterState;
129 typedef vector<RouteMeterState> GlobalRouteMeterState;
153 InputConfigurationChange,
157 /* only one of each of these events
158 can be queued at any one time
174 nframes_t action_frame;
175 nframes_t target_frame;
181 nframes_t target2_frame;
186 boost::shared_ptr<Region> region;
188 list<AudioRange> audio_range;
189 list<MusicRange> music_range;
191 Event(Type t, Action a, nframes_t when, nframes_t where, double spd, bool yn = false)
195 target_frame (where),
199 void set_ptr (void* p) {
203 bool before (const Event& other) const {
204 return action_frame < other.action_frame;
207 bool after (const Event& other) const {
208 return action_frame > other.action_frame;
211 static bool compare (const Event *e1, const Event *e2) {
212 return e1->before (*e2);
215 void *operator new (size_t ignored) {
216 return pool.alloc ();
219 void operator delete(void *ptr, size_t size) {
223 static const nframes_t Immediate = 0;
226 static MultiAllocSingleReleasePool pool;
229 /* creating from an XML file */
231 Session (AudioEngine&,
232 const string& fullpath,
233 const string& snapshot_name,
234 string mix_template = "");
236 /* creating a new Session */
238 Session (AudioEngine&,
240 string snapshot_name,
241 AutoConnectOption input_auto_connect,
242 AutoConnectOption output_auto_connect,
243 uint32_t control_out_channels,
244 uint32_t master_out_channels,
245 uint32_t n_physical_in,
246 uint32_t n_physical_out,
247 nframes_t initial_length);
251 string path() const { return _path; }
252 string name() const { return _name; }
253 string snap_name() const { return _current_snapshot_name; }
254 string raid_path () const;
256 void set_snap_name ();
260 bool dirty() const { return _state_of_the_state & Dirty; }
261 void set_deletion_in_progress ();
262 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
263 sigc::signal<void> DirtyChanged;
265 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
267 static sigc::signal<void> AutoBindingOn;
268 static sigc::signal<void> AutoBindingOff;
270 static sigc::signal<void,std::string> Dialog;
272 std::string sound_dir (bool with_path = true) const;
273 std::string peak_dir () const;
274 std::string dead_sound_dir () const;
275 std::string automation_dir () const;
276 std::string analysis_dir() const;
278 int ensure_subdirs ();
280 Glib::ustring peak_path (Glib::ustring) const;
282 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
283 static string change_midi_path_by_name (string oldpath, string oldname, string newname, bool destructive);
285 string peak_path_from_audio_path (string) const;
286 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
287 string midi_path_from_name (string);
289 void process (nframes_t nframes);
291 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
292 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
293 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
295 void add_diskstream (boost::shared_ptr<Diskstream>);
296 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
297 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
299 bool have_captured() const { return _have_captured; }
301 void refill_all_diskstream_buffers ();
302 uint32_t audio_diskstream_buffer_size() const { return audio_dstream_buffer_size; }
303 uint32_t midi_diskstream_buffer_size() const { return midi_dstream_buffer_size; }
305 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
306 uint32_t n_diskstreams() const;
308 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
310 int load_routes (const XMLNode&);
311 boost::shared_ptr<RouteList> get_routes() const {
312 return routes.reader ();
315 uint32_t nroutes() const { return routes.reader()->size(); }
316 uint32_t ntracks () const;
317 uint32_t nbusses () const;
319 boost::shared_ptr<BundleList> bundles () {
320 return _bundles.reader ();
323 struct RoutePublicOrderSorter {
324 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
327 void sync_order_keys (const char* base);
329 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
330 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
331 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
333 boost::shared_ptr<Route> route_by_name (string);
334 boost::shared_ptr<Route> route_by_id (PBD::ID);
335 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
337 bool route_name_unique (string) const;
339 bool get_record_enabled() const {
340 return (record_status () >= Enabled);
343 RecordState record_status() const {
344 return (RecordState) g_atomic_int_get (&_record_status);
347 bool actively_recording () {
348 return record_status() == Recording;
351 bool record_enabling_legal () const;
352 void maybe_enable_record ();
353 void disable_record (bool rt_context, bool force = false);
354 void step_back_from_record ();
356 void maybe_write_autosave ();
358 /* Proxy signal for region hidden changes */
360 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
362 /* Emitted when all i/o connections are complete */
364 sigc::signal<void> IOConnectionsComplete;
366 /* Record status signals */
368 sigc::signal<void> RecordStateChanged;
370 /* Transport mechanism signals */
372 sigc::signal<void> TransportStateChange; /* generic */
373 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
374 sigc::signal<void> DurationChanged;
375 sigc::signal<void,nframes_t> Xrun;
376 sigc::signal<void> TransportLooped;
378 sigc::signal<void,RouteList&> RouteAdded;
380 void request_roll_at_and_return (nframes_t start, nframes_t return_to);
381 void request_bounded_roll (nframes_t start, nframes_t end);
382 void request_stop (bool abort = false);
383 void request_locate (nframes_t frame, bool with_roll = false);
385 void request_play_loop (bool yn);
386 bool get_play_loop () const { return play_loop; }
388 nframes_t last_transport_start() const { return _last_roll_location; }
389 void goto_end () { request_locate (end_location->start(), false);}
390 void goto_start () { request_locate (start_location->start(), false); }
391 void set_session_start (nframes_t start) { start_location->set_start(start); }
392 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
393 void use_rf_shuttle_speed ();
394 void allow_auto_play (bool yn);
395 void request_transport_speed (double speed);
396 void request_overwrite_buffer (Diskstream*);
397 void request_diskstream_speed (Diskstream&, double speed);
398 void request_input_change_handling ();
400 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
401 bool transport_locked () const;
404 //int wipe_diskstream (AudioDiskstream *);
406 int remove_region_from_region_list (boost::shared_ptr<Region>);
408 nframes_t get_maximum_extent () const;
409 nframes_t current_end_frame() const { return end_location->start(); }
410 nframes_t current_start_frame() const { return start_location->start(); }
411 // "actual" sample rate of session, set by current audioengine rate, pullup/down etc.
412 nframes_t frame_rate() const { return _current_frame_rate; }
413 // "native" sample rate of session, regardless of current audioengine rate, pullup/down etc
414 nframes_t nominal_frame_rate() const { return _nominal_frame_rate; }
415 nframes_t frames_per_hour() const { return _frames_per_hour; }
417 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
418 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
420 MIDI::byte get_mtc_smpte_bits() const {
421 return mtc_smpte_bits; /* encoding of SMTPE type for MTC */
424 float smpte_frames_per_second() const;
425 bool smpte_drop_frames() const;
429 Locations *locations() { return &_locations; }
431 sigc::signal<void,Location*> auto_loop_location_changed;
432 sigc::signal<void,Location*> auto_punch_location_changed;
433 sigc::signal<void> locations_modified;
435 void set_auto_punch_location (Location *);
436 void set_auto_loop_location (Location *);
437 int location_name(string& result, string base = string(""));
439 void reset_input_monitor_state ();
441 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
442 void remove_event (nframes_t frame, Event::Type type);
443 void clear_events (Event::Type type);
445 nframes_t get_block_size() const { return current_block_size; }
446 nframes_t worst_output_latency () const { return _worst_output_latency; }
447 nframes_t worst_input_latency () const { return _worst_input_latency; }
448 nframes_t worst_track_latency () const { return _worst_track_latency; }
450 int save_state (std::string snapshot_name, bool pending = false);
451 int restore_state (std::string snapshot_name);
452 int save_template (std::string template_name);
453 int save_history (std::string snapshot_name = "");
454 int restore_history (std::string snapshot_name);
455 void remove_state (std::string snapshot_name);
456 void rename_state (std::string old_name, std::string new_name);
457 void remove_pending_capture_state ();
459 static int rename_template (std::string old_name, std::string new_name);
460 static int delete_template (std::string name);
462 sigc::signal<void,string> StateSaved;
463 sigc::signal<void> StateReady;
465 vector<string*>* possible_states() const;
466 static vector<string*>* possible_states(string path);
468 XMLNode& get_state();
469 int set_state(const XMLNode& node); // not idempotent
470 XMLNode& get_template();
472 /// The instant xml file is written to the session directory
473 void add_instant_xml (XMLNode&, bool write_to_config = true);
474 XMLNode * instant_xml (const std::string& str);
476 enum StateOfTheState {
481 InitialConnecting = 0x8,
486 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
488 RouteGroup* add_edit_group (string);
489 RouteGroup* add_mix_group (string);
491 void remove_edit_group (RouteGroup&);
492 void remove_mix_group (RouteGroup&);
494 RouteGroup *mix_group_by_name (string);
495 RouteGroup *edit_group_by_name (string);
497 sigc::signal<void,RouteGroup*> edit_group_added;
498 sigc::signal<void,RouteGroup*> mix_group_added;
499 sigc::signal<void> edit_group_removed;
500 sigc::signal<void> mix_group_removed;
502 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
503 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
508 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
509 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
514 /* fundamental operations. duh. */
516 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
517 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
519 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (TrackMode mode = Normal, uint32_t how_many = 1);
520 //boost::shared_ptr<Route> new_midi_route (uint32_t how_many = 1);
522 void remove_route (boost::shared_ptr<Route>);
523 void resort_routes ();
524 void resort_routes_using (boost::shared_ptr<RouteList>);
526 void set_remote_control_ids();
528 AudioEngine & engine() { return _engine; }
529 AudioEngine const & engine () const { return _engine; }
536 nframes_t transport_frame () const {return _transport_frame; }
537 nframes_t audible_frame () const;
538 nframes64_t requested_return_frame() const { return _requested_return_frame; }
552 int set_smpte_format (SmpteFormat);
553 void sync_time_vars();
555 void bbt_time (nframes_t when, BBT_Time&);
556 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
557 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
558 void smpte_time (SMPTE::Time &);
559 void smpte_time (nframes_t when, SMPTE::Time&);
560 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
562 void smpte_duration (nframes_t, SMPTE::Time&) const;
563 void smpte_duration_string (char *, nframes_t) const;
565 void set_smpte_offset (nframes_t);
566 nframes_t smpte_offset () const { return _smpte_offset; }
567 void set_smpte_offset_negative (bool);
568 bool smpte_offset_negative () const { return _smpte_offset_negative; }
570 nframes_t convert_to_frames_at (nframes_t position, AnyTime const &);
572 static sigc::signal<void> StartTimeChanged;
573 static sigc::signal<void> EndTimeChanged;
574 static sigc::signal<void> SMPTEOffsetChanged;
576 void request_slave_source (SlaveSource);
577 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
579 double transport_speed() const { return _transport_speed; }
580 bool transport_stopped() const { return _transport_speed == 0.0f; }
581 bool transport_rolling() const { return _transport_speed != 0.0f; }
583 void set_silent (bool yn);
584 bool silent () { return _silent; }
586 int jack_slave_sync (nframes_t);
588 TempoMap& tempo_map() { return *_tempo_map; }
590 /// signals the current transport position in frames, bbt and smpte time (in that order)
591 sigc::signal<void, const nframes_t&, const BBT_Time&, const SMPTE::Time&> tick;
595 void add_regions (std::vector<boost::shared_ptr<Region> >&);
597 sigc::signal<void,boost::weak_ptr<Region> > RegionAdded;
598 sigc::signal<void,std::vector<boost::weak_ptr<Region> >& > RegionsAdded;
599 sigc::signal<void,boost::weak_ptr<Region> > RegionRemoved;
601 int region_name (string& result, string base = string(""), bool newlevel = false);
602 string new_region_name (string);
603 string path_from_region_name (DataType type, string name, string identifier);
605 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>);
607 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
609 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
610 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
611 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
613 template<class T> void foreach_region (T *obj, void (T::*func)(boost::shared_ptr<Region>));
615 /* source management */
617 struct import_status : public InterThreadInfo {
623 volatile bool freeze;
624 std::vector<Glib::ustring> paths;
625 bool replace_existing_source;
631 void import_audiofiles (import_status&);
632 bool sample_rate_convert (import_status&, string infile, string& outfile);
633 string build_tmp_convert_name (string file);
635 boost::shared_ptr<ExportHandler> get_export_handler ();
636 boost::shared_ptr<ExportStatus> get_export_status ();
638 int start_audio_export (nframes_t position, bool realtime);
640 sigc::signal<int, nframes_t> ProcessExport;
641 sigc::signal<void> ExportReadFinished;
642 static sigc::signal<void, std::string, std::string> Exported;
644 void add_source (boost::shared_ptr<Source>);
645 void remove_source (boost::weak_ptr<Source>);
647 struct cleanup_report {
648 vector<string> paths;
652 int cleanup_sources (cleanup_report&);
653 int cleanup_trash_sources (cleanup_report&);
655 int destroy_region (boost::shared_ptr<Region>);
656 int destroy_regions (std::list<boost::shared_ptr<Region> >);
658 int remove_last_capture ();
660 /* handlers should return -1 for "stop cleanup", 0 for
661 "yes, delete this playlist" and 1 for "no, don't delete
665 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
667 /* handlers should return 0 for "ignore the rate mismatch"
668 and !0 for "do not use this session"
671 static sigc::signal<int,nframes_t, nframes_t> AskAboutSampleRateMismatch;
673 /* handlers should return !0 for use pending state, 0 for
677 static sigc::signal<int> AskAboutPendingState;
679 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
681 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
683 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
684 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
686 /* playlist management */
688 boost::shared_ptr<Playlist> playlist_by_name (string name);
689 void unassigned_playlists (std::list<boost::shared_ptr<Playlist> > & list);
690 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
691 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
692 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
694 uint32_t n_playlists() const;
696 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
697 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
699 /* named selections */
701 NamedSelection* named_selection_by_name (string name);
702 void add_named_selection (NamedSelection *);
703 void remove_named_selection (NamedSelection *);
705 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
706 sigc::signal<void> NamedSelectionAdded;
707 sigc::signal<void> NamedSelectionRemoved;
709 /* Curves and AutomationLists (TODO when they go away) */
710 void add_curve(Evoral::Curve*);
711 void add_automation_list(AutomationList*);
715 float get_default_fade_length () const { return default_fade_msecs; }
716 float get_default_fade_steepness () const { return default_fade_steepness; }
717 void set_default_fade (float steepness, float msecs);
721 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
722 void audition_playlist ();
723 void audition_region (boost::shared_ptr<Region>);
724 void cancel_audition ();
725 bool is_auditioning () const;
727 sigc::signal<void,bool> AuditionActive;
729 /* flattening stuff */
731 boost::shared_ptr<Region> write_one_track (AudioTrack&, nframes_t start, nframes_t end, bool overwrite, vector<boost::shared_ptr<Source> >&,
732 InterThreadInfo& wot);
733 int freeze (InterThreadInfo&);
735 /* session-wide solo/mute/rec-enable */
737 bool soloing() const { return currently_soloing; }
739 void set_all_solo (bool);
740 void set_all_mute (bool);
742 sigc::signal<void,bool> SoloActive;
743 sigc::signal<void> SoloChanged;
745 void record_disenable_all ();
746 void record_enable_all ();
748 /* control/master out */
750 boost::shared_ptr<IO> control_out() const { return _control_out; }
751 boost::shared_ptr<IO> master_out() const { return _master_out; }
753 /* insert/send management */
755 uint32_t n_port_inserts() const { return _port_inserts.size(); }
756 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
757 uint32_t n_sends() const { return _sends.size(); }
759 static void set_disable_all_loaded_plugins (bool yn) {
760 _disable_all_loaded_plugins = yn;
762 static bool get_disable_all_loaded_plugins() {
763 return _disable_all_loaded_plugins;
766 uint32_t next_send_id();
767 uint32_t next_insert_id();
768 void mark_send_id (uint32_t);
769 void mark_insert_id (uint32_t);
771 /* s/w "RAID" management */
773 nframes_t available_capture_duration();
777 void add_bundle (boost::shared_ptr<Bundle>);
778 void remove_bundle (boost::shared_ptr<Bundle>);
779 boost::shared_ptr<Bundle> bundle_by_name (string) const;
781 sigc::signal<void,boost::shared_ptr<Bundle> > BundleAdded;
782 sigc::signal<void,boost::shared_ptr<Bundle> > BundleRemoved;
786 void midi_panic(void);
787 int set_mtc_port (string port_tag);
788 int set_mmc_port (string port_tag);
789 int set_midi_port (string port_tag);
790 int set_midi_clock_port (string port_tag);
791 MIDI::Port *mtc_port() const { return _mtc_port; }
792 MIDI::Port *mmc_port() const { return _mmc_port; }
793 MIDI::Port *midi_port() const { return _midi_port; }
794 MIDI::Port *midi_clock_port() const { return _midi_clock_port; }
796 sigc::signal<void> MTC_PortChanged;
797 sigc::signal<void> MMC_PortChanged;
798 sigc::signal<void> MIDI_PortChanged;
799 sigc::signal<void> MIDIClock_PortChanged;
801 void set_trace_midi_input (bool, MIDI::Port* port = 0);
802 void set_trace_midi_output (bool, MIDI::Port* port = 0);
804 bool get_trace_midi_input(MIDI::Port *port = 0);
805 bool get_trace_midi_output(MIDI::Port *port = 0);
807 void set_mmc_receive_device_id (uint32_t id);
808 void set_mmc_send_device_id (uint32_t id);
812 void start_scrub (nframes_t where);
814 void set_scrub_speed (float);
815 nframes_t scrub_buffer_size() const;
816 sigc::signal<void> ScrubReady;
818 /* History (for editors, mixers, UIs etc.) */
820 /** Undo some transactions.
821 * @param n Number of transactions to undo.
823 void undo (uint32_t n) {
827 void redo (uint32_t n) {
831 UndoHistory& history() { return _history; }
833 uint32_t undo_depth() const { return _history.undo_depth(); }
834 uint32_t redo_depth() const { return _history.redo_depth(); }
835 string next_undo() const { return _history.next_undo(); }
836 string next_redo() const { return _history.next_redo(); }
838 void begin_reversible_command (const string& cmd_name);
839 void commit_reversible_command (Command* cmd = 0);
841 void add_command (Command *const cmd) {
842 current_trans->add_command (cmd);
845 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
847 // these commands are implemented in libs/ardour/session_command.cc
848 Command* memento_command_factory(XMLNode* n);
849 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
851 Command* global_state_command_factory (const XMLNode& n);
853 class GlobalRouteStateCommand : public Command
856 GlobalRouteStateCommand (Session&, void*);
857 GlobalRouteStateCommand (Session&, const XMLNode& node);
858 int set_state (const XMLNode&);
859 XMLNode& get_state ();
862 GlobalRouteBooleanState before, after;
868 class GlobalSoloStateCommand : public GlobalRouteStateCommand
871 GlobalSoloStateCommand (Session &, void *src);
872 GlobalSoloStateCommand (Session&, const XMLNode&);
873 void operator()(); //redo
875 XMLNode &get_state();
879 class GlobalMuteStateCommand : public GlobalRouteStateCommand
882 GlobalMuteStateCommand(Session &, void *src);
883 GlobalMuteStateCommand (Session&, const XMLNode&);
884 void operator()(); // redo
886 XMLNode &get_state();
890 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
893 GlobalRecordEnableStateCommand(Session &, void *src);
894 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
895 void operator()(); // redo
897 XMLNode &get_state();
901 class GlobalMeteringStateCommand : public Command
904 GlobalMeteringStateCommand(Session &, void *src);
905 GlobalMeteringStateCommand (Session&, const XMLNode&);
908 XMLNode &get_state();
909 int set_state (const XMLNode&);
915 GlobalRouteMeterState before;
916 GlobalRouteMeterState after;
921 boost::shared_ptr<IO> click_io() { return _click_io; }
923 /* disk, buffer loads */
925 uint32_t playback_load ();
926 uint32_t capture_load ();
927 uint32_t playback_load_min ();
928 uint32_t capture_load_min ();
930 void reset_playback_load_min ();
931 void reset_capture_load_min ();
933 float read_data_rate () const; // in usec
934 float write_data_rate () const;
938 void set_audio_range (list<AudioRange>&);
939 void set_music_range (list<MusicRange>&);
941 void request_play_range (bool yn);
942 bool get_play_range () const { return _play_range; }
944 /* buffers for gain and pan */
946 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
947 pan_t** pan_automation_buffer () const { return _pan_automation_buffer; }
949 /* buffers for conversion */
958 static long vst_callback (AEffect* effect,
965 static sigc::signal<void> SendFeedback;
969 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
971 void add_controllable (boost::shared_ptr<PBD::Controllable>);
972 void remove_controllable (PBD::Controllable*);
976 SessionMetadata & metadata () { return *_metadata; }
979 friend class AudioEngine;
980 void set_block_size (nframes_t nframes);
981 void set_frame_rate (nframes_t nframes);
984 friend class Diskstream;
986 void wait_till_butler_finished();
990 void schedule_curve_reallocation ();
991 void update_latency_compensation (bool, bool);
994 int create (bool& new_session, const string& mix_template, nframes_t initial_length);
997 nframes_t compute_initial_length ();
1000 PendingDeclickIn = 0x1,
1001 PendingDeclickOut = 0x2,
1002 StopPendingCapture = 0x4,
1003 AutoReturning = 0x10,
1004 PendingLocate = 0x20,
1005 PendingSetLoop = 0x40
1008 /* stuff used in process() should be close together to
1012 typedef void (Session::*process_function_type)(nframes_t);
1014 AudioEngine& _engine;
1015 mutable gint processing_prohibited;
1016 process_function_type process_function;
1017 process_function_type last_process_function;
1018 bool waiting_for_sync_offset;
1019 nframes_t _base_frame_rate;
1020 nframes_t _current_frame_rate; //this includes video pullup offset
1021 nframes_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1022 int transport_sub_state;
1023 mutable gint _record_status;
1024 volatile nframes_t _transport_frame;
1025 Location* end_location;
1026 Location* start_location;
1029 volatile double _transport_speed;
1030 double _last_transport_speed;
1031 // fixed point transport speed for varispeed playback
1033 // fixed point target transport speed for varispeed playback when tempo changes
1034 uint64_t target_phi;
1035 // fixed point phase for varispeed playback
1037 bool auto_play_legal;
1038 nframes_t _last_slave_transport_frame;
1039 nframes_t maximum_output_latency;
1040 nframes_t last_stop_frame;
1041 volatile nframes64_t _requested_return_frame;
1042 BufferSet* _scratch_buffers;
1043 BufferSet* _silent_buffers;
1044 BufferSet* _mix_buffers;
1045 nframes_t current_block_size;
1046 nframes_t _worst_output_latency;
1047 nframes_t _worst_input_latency;
1048 nframes_t _worst_track_latency;
1049 bool _have_captured;
1051 float _meter_falloff;
1052 bool _end_location_is_free;
1054 void set_worst_io_latencies ();
1055 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1056 set_worst_io_latencies ();
1059 void update_latency_compensation_proxy (void* ignored);
1061 void ensure_buffers (ChanCount howmany);
1063 void process_scrub (nframes_t);
1064 void process_without_events (nframes_t);
1065 void process_with_events (nframes_t);
1066 void process_audition (nframes_t);
1067 void process_export (nframes_t);
1068 int process_export_fw (nframes_t);
1070 /* slave tracking */
1072 static const int delta_accumulator_size = 25;
1073 int delta_accumulator_cnt;
1074 long delta_accumulator[delta_accumulator_size];
1075 long average_slave_delta;
1077 bool have_first_delta_accumulator;
1085 SlaveState slave_state;
1086 nframes_t slave_wait_end;
1088 void reset_slave_state ();
1089 bool follow_slave (nframes_t, nframes_t);
1090 void calculate_moving_average_of_slave_delta(int dir, nframes_t this_delta);
1091 void track_slave_state(
1093 nframes_t slave_transport_frame,
1094 nframes_t this_delta,
1096 void follow_slave_silently(nframes_t nframes, nframes_t offset, float slave_speed);
1098 void set_slave_source (SlaveSource);
1100 SlaveSource post_export_slave;
1101 nframes_t post_export_position;
1104 bool _exporting_realtime;
1106 boost::shared_ptr<ExportHandler> export_handler;
1107 boost::shared_ptr<ExportStatus> export_status;
1110 int stop_audio_export ();
1111 void finalize_audio_export ();
1113 sigc::connection export_freewheel_connection;
1115 void prepare_diskstreams ();
1116 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1117 int process_routes (nframes_t, nframes_t);
1118 int silent_process_routes (nframes_t, nframes_t);
1120 bool get_rec_monitors_input () {
1121 if (actively_recording()) {
1124 if (Config->get_auto_input()) {
1132 int get_transport_declick_required () {
1134 if (transport_sub_state & PendingDeclickIn) {
1135 transport_sub_state &= ~PendingDeclickIn;
1137 } else if (transport_sub_state & PendingDeclickOut) {
1144 bool maybe_stop (nframes_t limit) {
1145 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1152 bool maybe_sync_start (nframes_t&, nframes_t&);
1154 void check_declick_out ();
1156 MIDI::MachineControl* mmc;
1157 MIDI::Port* _mmc_port;
1158 MIDI::Port* _mtc_port;
1159 MIDI::Port* _midi_port;
1160 MIDI::Port* _midi_clock_port;
1163 bool session_send_mmc;
1164 bool session_send_mtc;
1165 bool session_midi_feedback;
1168 nframes_t last_loopend;
1170 boost::scoped_ptr<SessionDirectory> _session_dir;
1172 RingBuffer<Event*> pending_events;
1175 void when_engine_running ();
1176 void graph_reordered ();
1178 string _current_snapshot_name;
1180 XMLTree* state_tree;
1181 bool state_was_pending;
1182 StateOfTheState _state_of_the_state;
1185 int load_options (const XMLNode&);
1186 XMLNode& get_options () const;
1187 int load_state (string snapshot_name);
1188 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1190 nframes_t _last_roll_location;
1191 nframes_t _last_record_location;
1193 bool pending_locate_roll;
1194 nframes_t pending_locate_frame;
1195 bool pending_locate_flush;
1197 bool pending_auto_loop;
1199 Sample* butler_mixdown_buffer;
1200 float* butler_gain_buffer;
1201 pthread_t butler_thread;
1202 Glib::Mutex butler_request_lock;
1203 Glib::Cond butler_paused;
1204 bool butler_should_run;
1205 mutable gint butler_should_do_transport_work;
1206 int butler_request_pipe[2];
1208 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1210 struct ButlerRequest {
1219 enum PostTransportWork {
1220 PostTransportStop = 0x1,
1221 PostTransportDisableRecord = 0x2,
1222 PostTransportPosition = 0x8,
1223 PostTransportDidRecord = 0x20,
1224 PostTransportDuration = 0x40,
1225 PostTransportLocate = 0x80,
1226 PostTransportRoll = 0x200,
1227 PostTransportAbort = 0x800,
1228 PostTransportOverWrite = 0x1000,
1229 PostTransportSpeed = 0x2000,
1230 PostTransportAudition = 0x4000,
1231 PostTransportScrub = 0x8000,
1232 PostTransportReverse = 0x10000,
1233 PostTransportInputChange = 0x20000,
1234 PostTransportCurveRealloc = 0x40000
1237 static const PostTransportWork ProcessCannotProceedMask =
1238 PostTransportWork (PostTransportInputChange|
1240 PostTransportReverse|
1241 PostTransportCurveRealloc|
1243 PostTransportAudition|
1244 PostTransportLocate|
1247 PostTransportWork post_transport_work;
1249 void summon_butler ();
1250 void schedule_butler_transport_work ();
1251 int start_butler_thread ();
1252 void terminate_butler_thread ();
1253 static void *_butler_thread_work (void *arg);
1254 void* butler_thread_work ();
1256 uint32_t cumulative_rf_motion;
1259 void set_rf_speed (float speed);
1260 void reset_rf_scale (nframes_t frames_moved);
1262 Locations _locations;
1263 void locations_changed ();
1264 void locations_added (Location*);
1265 void handle_locations_changed (Locations::LocationList&);
1267 sigc::connection auto_punch_start_changed_connection;
1268 sigc::connection auto_punch_end_changed_connection;
1269 sigc::connection auto_punch_changed_connection;
1270 void auto_punch_start_changed (Location *);
1271 void auto_punch_end_changed (Location *);
1272 void auto_punch_changed (Location *);
1274 sigc::connection auto_loop_start_changed_connection;
1275 sigc::connection auto_loop_end_changed_connection;
1276 sigc::connection auto_loop_changed_connection;
1277 void auto_loop_changed (Location *);
1279 typedef list<Event *> Events;
1281 Events immediate_events;
1282 Events::iterator next_event;
1284 /* there can only ever be one of each of these */
1286 Event *auto_loop_event;
1287 Event *punch_out_event;
1288 Event *punch_in_event;
1292 void dump_events () const;
1293 void queue_event (Event *ev);
1294 void merge_event (Event*);
1295 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1296 bool _replace_event (Event*);
1297 bool _remove_event (Event *);
1298 void _clear_event_type (Event::Type);
1300 void first_stage_init (string path, string snapshot_name);
1301 int second_stage_init (bool new_tracks);
1302 void find_current_end ();
1303 void remove_empty_sounds ();
1305 void setup_midi_control ();
1306 int midi_read (MIDI::Port *);
1308 void enable_record ();
1310 void increment_transport_position (uint32_t val) {
1311 if (max_frames - val < _transport_frame) {
1312 _transport_frame = max_frames;
1314 _transport_frame += val;
1318 void decrement_transport_position (uint32_t val) {
1319 if (val < _transport_frame) {
1320 _transport_frame -= val;
1322 _transport_frame = 0;
1326 void post_transport_motion ();
1327 static void *session_loader_thread (void *arg);
1331 void set_next_event ();
1332 void process_event (Event *ev);
1334 /* MIDI Machine Control */
1336 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1338 void spp_start (MIDI::Parser&, nframes_t timestamp);
1339 void spp_continue (MIDI::Parser&, nframes_t timestamp);
1340 void spp_stop (MIDI::Parser&, nframes_t timestamp);
1342 void mmc_deferred_play (MIDI::MachineControl &);
1343 void mmc_stop (MIDI::MachineControl &);
1344 void mmc_step (MIDI::MachineControl &, int);
1345 void mmc_pause (MIDI::MachineControl &);
1346 void mmc_record_pause (MIDI::MachineControl &);
1347 void mmc_record_strobe (MIDI::MachineControl &);
1348 void mmc_record_exit (MIDI::MachineControl &);
1349 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1350 void mmc_fast_forward (MIDI::MachineControl &);
1351 void mmc_rewind (MIDI::MachineControl &);
1352 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1353 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1354 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1356 struct timeval last_mmc_step;
1359 typedef sigc::slot<bool> MidiTimeoutCallback;
1360 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1362 MidiTimeoutList midi_timeouts;
1363 bool mmc_step_timeout ();
1365 MIDI::byte mmc_buffer[32];
1366 MIDI::byte mtc_msg[16];
1367 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1368 MIDI::byte midi_msg[16];
1369 nframes_t outbound_mtc_smpte_frame;
1370 SMPTE::Time transmitting_smpte_time;
1371 int next_quarter_frame_to_send;
1373 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1374 nframes_t _frames_per_hour;
1375 nframes_t _smpte_frames_per_hour;
1376 nframes_t _smpte_offset;
1377 bool _smpte_offset_negative;
1379 /* cache the most-recently requested time conversions. This helps when we
1380 * have multiple clocks showing the same time (e.g. the transport frame) */
1381 bool last_smpte_valid;
1382 nframes_t last_smpte_when;
1383 SMPTE::Time last_smpte;
1385 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1387 int send_full_time_code(nframes_t nframes);
1388 int send_midi_time_code_for_cycle(nframes_t nframes);
1390 nframes_t adjust_apparent_position (nframes_t frames);
1392 void reset_record_status ();
1394 int no_roll (nframes_t nframes, nframes_t offset);
1396 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1397 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1399 struct MIDIRequest {
1411 Glib::Mutex midi_lock;
1412 pthread_t midi_thread;
1413 int midi_request_pipe[2];
1414 RingBuffer<MIDIRequest*> midi_requests;
1416 int start_midi_thread ();
1417 void terminate_midi_thread ();
1418 void poke_midi_thread ();
1419 static void *_midi_thread_work (void *arg);
1420 void midi_thread_work ();
1421 void change_midi_ports ();
1422 int use_config_midi_ports ();
1424 void set_play_loop (bool yn);
1425 void overwrite_some_buffers (Diskstream*);
1426 void flush_all_inserts ();
1427 int micro_locate (nframes_t distance);
1428 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1429 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1430 void force_locate (nframes_t frame, bool with_roll = false);
1431 void set_diskstream_speed (Diskstream*, double speed);
1432 void set_transport_speed (double speed, bool abort = false);
1433 void stop_transport (bool abort = false);
1434 void start_transport ();
1435 void realtime_stop (bool abort);
1436 void non_realtime_start_scrub ();
1437 void non_realtime_set_speed ();
1438 void non_realtime_locate ();
1439 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1440 void non_realtime_overwrite (int entry_request_count, bool& finished);
1441 void butler_transport_work ();
1442 void post_transport ();
1443 void engine_halted ();
1444 void xrun_recovery ();
1446 TempoMap *_tempo_map;
1447 void tempo_map_changed (Change);
1449 /* edit/mix groups */
1451 int load_route_groups (const XMLNode&, bool is_edit);
1452 int load_edit_groups (const XMLNode&);
1453 int load_mix_groups (const XMLNode&);
1456 list<RouteGroup *> edit_groups;
1457 list<RouteGroup *> mix_groups;
1461 SerializedRCUManager<DiskstreamList> diskstreams;
1463 uint32_t audio_dstream_buffer_size;
1464 uint32_t midi_dstream_buffer_size;
1465 int load_diskstreams (const XMLNode&);
1469 SerializedRCUManager<RouteList> routes;
1471 void add_routes (RouteList&, bool save);
1472 uint32_t destructive_index;
1474 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1478 bool solo_update_disabled;
1479 bool currently_soloing;
1481 void route_mute_changed (void *src);
1482 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1483 void catch_up_on_solo ();
1484 void catch_up_on_solo_mute_override ();
1485 void update_route_solo_state ();
1486 void modify_solo_mute (bool, bool);
1487 void strip_portname_for_solo (string& portname);
1489 /* REGION MANAGEMENT */
1491 std::map<std::string,uint32_t> region_name_map;
1492 void update_region_name_map (boost::shared_ptr<Region>);
1494 mutable Glib::Mutex region_lock;
1495 typedef map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1498 void add_region (boost::shared_ptr<Region>);
1499 void region_changed (Change, boost::weak_ptr<Region>);
1500 void remove_region (boost::weak_ptr<Region>);
1502 int load_regions (const XMLNode& node);
1506 mutable Glib::Mutex source_lock;
1507 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1512 SourceMap get_sources() { return sources; }
1517 int load_sources (const XMLNode& node);
1518 XMLNode& get_sources_as_xml ();
1520 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1524 mutable Glib::Mutex playlist_lock;
1525 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1526 PlaylistList playlists;
1527 PlaylistList unused_playlists;
1529 int load_playlists (const XMLNode&);
1530 int load_unused_playlists (const XMLNode&);
1531 void remove_playlist (boost::weak_ptr<Playlist>);
1532 void track_playlist (bool, boost::weak_ptr<Playlist>);
1534 boost::shared_ptr<Playlist> playlist_factory (string name);
1535 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1537 void playlist_length_changed ();
1538 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1540 /* NAMED SELECTIONS */
1542 mutable Glib::Mutex named_selection_lock;
1543 typedef set<NamedSelection *> NamedSelectionList;
1544 NamedSelectionList named_selections;
1546 int load_named_selections (const XMLNode&);
1548 NamedSelection *named_selection_factory (string name);
1549 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1551 /* CURVES and AUTOMATION LISTS */
1552 std::map<PBD::ID, Evoral::Curve*> curves;
1553 std::map<PBD::ID, AutomationList*> automation_lists;
1555 /* DEFAULT FADE CURVES */
1557 float default_fade_steepness;
1558 float default_fade_msecs;
1562 boost::shared_ptr<Auditioner> auditioner;
1563 void set_audition (boost::shared_ptr<Region>);
1564 void non_realtime_set_audition ();
1565 boost::shared_ptr<Region> pending_audition_region;
1571 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1573 /* INSERT AND SEND MANAGEMENT */
1575 list<PortInsert *> _port_inserts;
1576 list<PluginInsert *> _plugin_inserts;
1577 list<Send *> _sends;
1578 boost::dynamic_bitset<uint32_t> send_bitset;
1579 boost::dynamic_bitset<uint32_t> insert_bitset;
1581 uint32_t insert_cnt;
1584 void add_processor (Processor *);
1585 void remove_processor (Processor *);
1589 struct space_and_path {
1590 uint32_t blocks; /* 4kB blocks */
1598 struct space_and_path_ascending_cmp {
1599 bool operator() (space_and_path a, space_and_path b) {
1600 return a.blocks > b.blocks;
1604 void setup_raid_path (string path);
1606 vector<space_and_path> session_dirs;
1607 vector<space_and_path>::iterator last_rr_session_dir;
1608 uint32_t _total_free_4k_blocks;
1609 Glib::Mutex space_lock;
1611 string get_best_session_directory_for_new_source ();
1612 void refresh_disk_space ();
1614 mutable gint _playback_load;
1615 mutable gint _capture_load;
1616 mutable gint _playback_load_min;
1617 mutable gint _capture_load_min;
1621 SerializedRCUManager<BundleList> _bundles;
1622 XMLNode* _bundle_xml_node;
1623 int load_bundles (XMLNode const &);
1625 void reverse_diskstream_buffers ();
1627 UndoHistory _history;
1628 UndoTransaction* current_trans;
1630 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1631 GlobalRouteMeterState get_global_route_metering ();
1633 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1634 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1636 void set_global_mute (GlobalRouteBooleanState s, void *src);
1637 void set_global_solo (GlobalRouteBooleanState s, void *src);
1638 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1640 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1641 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1642 void reset_jack_connection (jack_client_t* jack);
1643 void record_enable_change_all (bool yn);
1645 XMLNode& state(bool);
1655 Click (nframes_t s, nframes_t d, const Sample *b)
1656 : start (s), duration (d), data (b) { offset = 0; }
1658 void *operator new(size_t ignored) {
1659 return pool.alloc ();
1662 void operator delete(void *ptr, size_t size) {
1670 typedef list<Click*> Clicks;
1674 boost::shared_ptr<IO> _click_io;
1676 Sample* click_emphasis_data;
1677 nframes_t click_length;
1678 nframes_t click_emphasis_length;
1679 mutable Glib::RWLock click_lock;
1681 static const Sample default_click[];
1682 static const nframes_t default_click_length;
1683 static const Sample default_click_emphasis[];
1684 static const nframes_t default_click_emphasis_length;
1687 void setup_click_sounds (int which);
1688 void clear_clicks ();
1689 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1691 vector<Route*> master_outs;
1693 /* range playback */
1695 list<AudioRange> current_audio_range;
1697 void set_play_range (bool yn);
1698 void setup_auto_play ();
1703 boost::shared_ptr<IO> _master_out;
1704 boost::shared_ptr<IO> _control_out;
1706 gain_t* _gain_automation_buffer;
1707 pan_t** _pan_automation_buffer;
1708 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1709 uint32_t _npan_buffers;
1713 long _vst_callback (VSTPlugin*,
1720 /* number of hardware ports we're using,
1721 based on max (requested,available)
1724 uint32_t n_physical_outputs;
1725 uint32_t n_physical_inputs;
1727 uint32_t n_physical_audio_outputs;
1728 uint32_t n_physical_audio_inputs;
1730 uint32_t n_physical_midi_outputs;
1731 uint32_t n_physical_midi_inputs;
1734 int find_all_sources (std::string path, std::set<std::string>& result);
1735 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1737 LayerModel layer_model;
1738 CrossfadeModel xfade_model;
1740 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1741 Glib::Mutex controllables_lock;
1742 Controllables controllables;
1744 void reset_native_file_format();
1745 bool first_file_data_format_reset;
1746 bool first_file_header_format_reset;
1748 void config_changed (const char*);
1750 XMLNode& get_control_protocol_state ();
1752 void set_history_depth (uint32_t depth);
1753 void sync_order_keys ();
1755 static bool _disable_all_loaded_plugins;
1759 SessionMetadata * _metadata;
1761 /* used in ::audible_frame() */
1763 mutable bool have_looped;
1766 } // namespace ARDOUR
1768 #endif /* __ardour_session_h__ */