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/export_status.h>
55 #include <ardour/location.h>
56 #include <ardour/gain.h>
57 #include <ardour/io.h>
59 #include <ardour/smpte.h>
86 class AudioDiskstream;
88 class AudioFileSource;
105 class ControlProtocolInfo;
111 class SessionDirectory;
112 class SessionMetadata;
122 class Session : public PBD::StatefulDestructible
125 typedef std::pair<boost::weak_ptr<Route>,bool> RouteBooleanState;
126 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
127 typedef std::pair<boost::weak_ptr<Route>,MeterPoint> RouteMeterState;
128 typedef vector<RouteMeterState> GlobalRouteMeterState;
152 InputConfigurationChange,
156 /* only one of each of these events
157 can be queued at any one time
173 nframes_t action_frame;
174 nframes_t target_frame;
180 nframes_t target2_frame;
185 boost::shared_ptr<Region> region;
187 list<AudioRange> audio_range;
188 list<MusicRange> music_range;
190 Event(Type t, Action a, nframes_t when, nframes_t where, float spd, bool yn = false)
194 target_frame (where),
198 void set_ptr (void* p) {
202 bool before (const Event& other) const {
203 return action_frame < other.action_frame;
206 bool after (const Event& other) const {
207 return action_frame > other.action_frame;
210 static bool compare (const Event *e1, const Event *e2) {
211 return e1->before (*e2);
214 void *operator new (size_t ignored) {
215 return pool.alloc ();
218 void operator delete(void *ptr, size_t size) {
222 static const nframes_t Immediate = 0;
225 static MultiAllocSingleReleasePool pool;
228 /* creating from an XML file */
230 Session (AudioEngine&,
231 const string& fullpath,
232 const string& snapshot_name,
233 string mix_template = "");
235 /* creating a new Session */
237 Session (AudioEngine&,
239 string snapshot_name,
240 AutoConnectOption input_auto_connect,
241 AutoConnectOption output_auto_connect,
242 uint32_t control_out_channels,
243 uint32_t master_out_channels,
244 uint32_t n_physical_in,
245 uint32_t n_physical_out,
246 nframes_t initial_length);
250 string path() const { return _path; }
251 string name() const { return _name; }
252 string snap_name() const { return _current_snapshot_name; }
253 string raid_path () const;
255 void set_snap_name ();
259 bool dirty() const { return _state_of_the_state & Dirty; }
260 void set_deletion_in_progress ();
261 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
262 sigc::signal<void> DirtyChanged;
264 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
266 static sigc::signal<void> AutoBindingOn;
267 static sigc::signal<void> AutoBindingOff;
269 static sigc::signal<void,std::string> Dialog;
271 std::string sound_dir (bool with_path = true) const;
272 std::string peak_dir () const;
273 std::string dead_sound_dir () const;
274 std::string automation_dir () const;
275 std::string analysis_dir() const;
277 int ensure_subdirs ();
279 Glib::ustring peak_path (Glib::ustring) const;
281 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
282 static string change_midi_path_by_name (string oldpath, string oldname, string newname, bool destructive);
284 string peak_path_from_audio_path (string) const;
285 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
286 string midi_path_from_name (string);
288 void process (nframes_t nframes);
290 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
291 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
292 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
294 void add_diskstream (boost::shared_ptr<Diskstream>);
295 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
296 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
298 bool have_captured() const { return _have_captured; }
300 void refill_all_diskstream_buffers ();
301 uint32_t audio_diskstream_buffer_size() const { return audio_dstream_buffer_size; }
302 uint32_t midi_diskstream_buffer_size() const { return midi_dstream_buffer_size; }
304 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
305 uint32_t n_diskstreams() const;
307 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
308 typedef std::list<boost::shared_ptr<Route> > RouteList;
310 boost::shared_ptr<RouteList> get_routes() const {
311 return routes.reader ();
314 uint32_t nroutes() const { return routes.reader()->size(); }
315 uint32_t ntracks () const;
316 uint32_t nbusses () const;
318 struct RoutePublicOrderSorter {
319 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
322 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
323 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
324 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
326 boost::shared_ptr<Route> route_by_name (string);
327 boost::shared_ptr<Route> route_by_id (PBD::ID);
328 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
330 bool route_name_unique (string) const;
332 bool get_record_enabled() const {
333 return (record_status () >= Enabled);
336 RecordState record_status() const {
337 return (RecordState) g_atomic_int_get (&_record_status);
340 bool actively_recording () {
341 return record_status() == Recording;
344 bool record_enabling_legal () const;
345 void maybe_enable_record ();
346 void disable_record (bool rt_context, bool force = false);
347 void step_back_from_record ();
349 void maybe_write_autosave ();
351 /* Proxy signal for region hidden changes */
353 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
355 /* Emitted when all i/o connections are complete */
357 sigc::signal<void> IOConnectionsComplete;
359 /* Record status signals */
361 sigc::signal<void> RecordStateChanged;
363 /* Transport mechanism signals */
365 sigc::signal<void> TransportStateChange; /* generic */
366 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
367 sigc::signal<void> DurationChanged;
368 sigc::signal<void,nframes_t> Xrun;
369 sigc::signal<void> TransportLooped;
371 sigc::signal<void,RouteList&> RouteAdded;
373 void request_roll_at_and_return (nframes_t start, nframes_t return_to);
374 void request_bounded_roll (nframes_t start, nframes_t end);
375 void request_stop (bool abort = false);
376 void request_locate (nframes_t frame, bool with_roll = false);
378 void request_play_loop (bool yn);
379 bool get_play_loop () const { return play_loop; }
381 nframes_t last_transport_start() const { return _last_roll_location; }
382 void goto_end () { request_locate (end_location->start(), false);}
383 void goto_start () { request_locate (start_location->start(), false); }
384 void set_session_start (nframes_t start) { start_location->set_start(start); }
385 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
386 void use_rf_shuttle_speed ();
387 void allow_auto_play (bool yn);
388 void request_transport_speed (float speed);
389 void request_overwrite_buffer (Diskstream*);
390 void request_diskstream_speed (Diskstream&, float speed);
391 void request_input_change_handling ();
393 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
394 bool transport_locked () const;
397 //int wipe_diskstream (AudioDiskstream *);
399 int remove_region_from_region_list (boost::shared_ptr<Region>);
401 nframes_t get_maximum_extent () const;
402 nframes_t current_end_frame() const { return end_location->start(); }
403 nframes_t current_start_frame() const { return start_location->start(); }
404 // "actual" sample rate of session, set by current audioengine rate, pullup/down etc.
405 nframes_t frame_rate() const { return _current_frame_rate; }
406 // "native" sample rate of session, regardless of current audioengine rate, pullup/down etc
407 nframes_t nominal_frame_rate() const { return _nominal_frame_rate; }
408 nframes_t frames_per_hour() const { return _frames_per_hour; }
410 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
411 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
413 float smpte_frames_per_second() const;
414 bool smpte_drop_frames() const;
418 Locations *locations() { return &_locations; }
420 sigc::signal<void,Location*> auto_loop_location_changed;
421 sigc::signal<void,Location*> auto_punch_location_changed;
422 sigc::signal<void> locations_modified;
424 void set_auto_punch_location (Location *);
425 void set_auto_loop_location (Location *);
426 int location_name(string& result, string base = string(""));
428 void reset_input_monitor_state ();
430 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
431 void remove_event (nframes_t frame, Event::Type type);
432 void clear_events (Event::Type type);
434 nframes_t get_block_size() const { return current_block_size; }
435 nframes_t worst_output_latency () const { return _worst_output_latency; }
436 nframes_t worst_input_latency () const { return _worst_input_latency; }
437 nframes_t worst_track_latency () const { return _worst_track_latency; }
439 int save_state (std::string snapshot_name, bool pending = false);
440 int restore_state (std::string snapshot_name);
441 int save_template (std::string template_name);
442 int save_history (std::string snapshot_name = "");
443 int restore_history (std::string snapshot_name);
444 void remove_state (std::string snapshot_name);
445 void rename_state (std::string old_name, std::string new_name);
446 void remove_pending_capture_state ();
448 static int rename_template (std::string old_name, std::string new_name);
449 static int delete_template (std::string name);
451 sigc::signal<void,string> StateSaved;
452 sigc::signal<void> StateReady;
454 vector<string*>* possible_states() const;
455 static vector<string*>* possible_states(string path);
457 XMLNode& get_state();
458 int set_state(const XMLNode& node); // not idempotent
459 XMLNode& get_template();
461 /// The instant xml file is written to the session directory
462 void add_instant_xml (XMLNode&, bool write_to_config = true);
463 XMLNode * instant_xml (const std::string& str);
465 enum StateOfTheState {
470 InitialConnecting = 0x8,
475 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
477 RouteGroup* add_edit_group (string);
478 RouteGroup* add_mix_group (string);
480 void remove_edit_group (RouteGroup&);
481 void remove_mix_group (RouteGroup&);
483 RouteGroup *mix_group_by_name (string);
484 RouteGroup *edit_group_by_name (string);
486 sigc::signal<void,RouteGroup*> edit_group_added;
487 sigc::signal<void,RouteGroup*> mix_group_added;
488 sigc::signal<void> edit_group_removed;
489 sigc::signal<void> mix_group_removed;
491 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
492 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
497 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
498 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
503 /* fundamental operations. duh. */
505 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
506 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
508 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (TrackMode mode = Normal, uint32_t how_many = 1);
509 //boost::shared_ptr<Route> new_midi_route (uint32_t how_many = 1);
511 void remove_route (boost::shared_ptr<Route>);
512 void resort_routes ();
513 void resort_routes_using (boost::shared_ptr<RouteList>);
515 void set_remote_control_ids();
517 AudioEngine & engine() { return _engine; }
518 AudioEngine const & engine () const { return _engine; }
525 nframes_t transport_frame () const {return _transport_frame; }
526 nframes_t audible_frame () const;
527 nframes64_t requested_return_frame() const { return _requested_return_frame; }
541 int set_smpte_format (SmpteFormat);
542 void sync_time_vars();
544 void bbt_time (nframes_t when, BBT_Time&);
545 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
546 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
547 void smpte_time (SMPTE::Time &);
548 void smpte_time (nframes_t when, SMPTE::Time&);
549 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
551 void smpte_duration (nframes_t, SMPTE::Time&) const;
552 void smpte_duration_string (char *, nframes_t) const;
554 void set_smpte_offset (nframes_t);
555 nframes_t smpte_offset () const { return _smpte_offset; }
556 void set_smpte_offset_negative (bool);
557 bool smpte_offset_negative () const { return _smpte_offset_negative; }
559 nframes_t convert_to_frames_at (nframes_t position, AnyTime const &);
561 static sigc::signal<void> StartTimeChanged;
562 static sigc::signal<void> EndTimeChanged;
563 static sigc::signal<void> SMPTEOffsetChanged;
565 void request_slave_source (SlaveSource);
566 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
568 float transport_speed() const { return _transport_speed; }
569 bool transport_stopped() const { return _transport_speed == 0.0f; }
570 bool transport_rolling() const { return _transport_speed != 0.0f; }
572 void set_silent (bool yn);
573 bool silent () { return _silent; }
575 int jack_slave_sync (nframes_t);
577 TempoMap& tempo_map() { return *_tempo_map; }
581 void add_regions (std::vector<boost::shared_ptr<Region> >&);
583 sigc::signal<void,boost::weak_ptr<Region> > RegionAdded;
584 sigc::signal<void,std::vector<boost::weak_ptr<Region> >& > RegionsAdded;
585 sigc::signal<void,boost::weak_ptr<Region> > RegionRemoved;
587 int region_name (string& result, string base = string(""), bool newlevel = false);
588 string new_region_name (string);
589 string path_from_region_name (DataType type, string name, string identifier);
591 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>);
593 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
595 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
596 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
597 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
599 template<class T> void foreach_region (T *obj, void (T::*func)(boost::shared_ptr<Region>));
601 /* source management */
603 struct import_status : public InterThreadInfo {
608 volatile bool freeze;
609 std::vector<Glib::ustring> paths;
610 bool replace_existing_source;
617 void import_audiofiles (import_status&);
618 bool sample_rate_convert (import_status&, string infile, string& outfile);
619 string build_tmp_convert_name (string file);
623 SlaveSource post_export_slave;
624 nframes_t post_export_position;
626 ExportStatus export_status;
628 boost::shared_ptr<ExportHandler> get_export_handler ();
629 void release_export_handler ();
632 int start_audio_export (nframes_t position, bool realtime);
633 int stop_audio_export ();
634 void finalize_audio_export ();
635 void abort_audio_export ();
637 sigc::signal<int, nframes_t> ProcessExport;
638 sigc::signal<void> ExportFinished;
639 static sigc::signal<void, std::string, std::string> Exported;
640 sigc::connection export_freewheel_connection;
641 sigc::connection export_abort_connection;
643 void add_source (boost::shared_ptr<Source>);
644 void remove_source (boost::weak_ptr<Source>);
646 struct cleanup_report {
647 vector<string> paths;
651 int cleanup_sources (cleanup_report&);
652 int cleanup_trash_sources (cleanup_report&);
654 int destroy_region (boost::shared_ptr<Region>);
655 int destroy_regions (std::list<boost::shared_ptr<Region> >);
657 int remove_last_capture ();
659 /* handlers should return -1 for "stop cleanup", 0 for
660 "yes, delete this playlist" and 1 for "no, don't delete
664 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
666 /* handlers should return 0 for "ignore the rate mismatch"
667 and !0 for "do not use this session"
670 static sigc::signal<int,nframes_t, nframes_t> AskAboutSampleRateMismatch;
672 /* handlers should return !0 for use pending state, 0 for
676 static sigc::signal<int> AskAboutPendingState;
678 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
680 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
682 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
683 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
685 /* playlist management */
687 boost::shared_ptr<Playlist> playlist_by_name (string name);
688 void add_playlist (boost::shared_ptr<Playlist>);
689 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
690 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
692 uint32_t n_playlists() const;
694 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
695 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
697 /* named selections */
699 NamedSelection* named_selection_by_name (string name);
700 void add_named_selection (NamedSelection *);
701 void remove_named_selection (NamedSelection *);
703 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
704 sigc::signal<void> NamedSelectionAdded;
705 sigc::signal<void> NamedSelectionRemoved;
707 /* Curves and AutomationLists (TODO when they go away) */
708 void add_curve(Curve*);
709 void add_automation_list(AutomationList*);
713 float get_default_fade_length () const { return default_fade_msecs; }
714 float get_default_fade_steepness () const { return default_fade_steepness; }
715 void set_default_fade (float steepness, float msecs);
719 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
720 void audition_playlist ();
721 void audition_region (boost::shared_ptr<Region>);
722 void cancel_audition ();
723 bool is_auditioning () const;
725 sigc::signal<void,bool> AuditionActive;
727 /* flattening stuff */
729 boost::shared_ptr<Region> write_one_track (AudioTrack&, nframes_t start, nframes_t end, bool overwrite, vector<boost::shared_ptr<Source> >&,
730 InterThreadInfo& wot);
731 int freeze (InterThreadInfo&);
733 /* session-wide solo/mute/rec-enable */
735 bool soloing() const { return currently_soloing; }
737 void set_all_solo (bool);
738 void set_all_mute (bool);
740 sigc::signal<void,bool> SoloActive;
741 sigc::signal<void> SoloChanged;
743 void record_disenable_all ();
744 void record_enable_all ();
746 /* control/master out */
748 boost::shared_ptr<IO> control_out() const { return _control_out; }
749 boost::shared_ptr<IO> master_out() const { return _master_out; }
751 /* insert/send management */
753 uint32_t n_port_inserts() const { return _port_inserts.size(); }
754 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
755 uint32_t n_sends() const { return _sends.size(); }
757 static void set_disable_all_loaded_plugins (bool yn) {
758 _disable_all_loaded_plugins = yn;
760 static bool get_disable_all_loaded_plugins() {
761 return _disable_all_loaded_plugins;
764 uint32_t next_send_id();
765 uint32_t next_insert_id();
766 void mark_send_id (uint32_t);
767 void mark_insert_id (uint32_t);
769 /* s/w "RAID" management */
771 nframes_t available_capture_duration();
775 void foreach_bundle (sigc::slot<void, boost::shared_ptr<Bundle> >);
776 void add_bundle (boost::shared_ptr<Bundle>);
777 void remove_bundle (boost::shared_ptr<Bundle>);
778 boost::shared_ptr<Bundle> bundle_by_name (string) const;
780 sigc::signal<void,boost::shared_ptr<Bundle> > BundleAdded;
781 sigc::signal<void,boost::shared_ptr<Bundle> > BundleRemoved;
785 void midi_panic(void);
786 int set_mtc_port (string port_tag);
787 int set_mmc_port (string port_tag);
788 int set_midi_port (string port_tag);
789 int set_midi_clock_port (string port_tag);
790 MIDI::Port *mtc_port() const { return _mtc_port; }
791 MIDI::Port *mmc_port() const { return _mmc_port; }
792 MIDI::Port *midi_port() const { return _midi_port; }
793 MIDI::Port *midi_clock_port() const { return _midi_clock_port; }
795 sigc::signal<void> MTC_PortChanged;
796 sigc::signal<void> MMC_PortChanged;
797 sigc::signal<void> MIDI_PortChanged;
798 sigc::signal<void> MIDIClock_PortChanged;
800 void set_trace_midi_input (bool, MIDI::Port* port = 0);
801 void set_trace_midi_output (bool, MIDI::Port* port = 0);
803 bool get_trace_midi_input(MIDI::Port *port = 0);
804 bool get_trace_midi_output(MIDI::Port *port = 0);
806 void set_mmc_receive_device_id (uint32_t id);
807 void set_mmc_send_device_id (uint32_t id);
811 void start_scrub (nframes_t where);
813 void set_scrub_speed (float);
814 nframes_t scrub_buffer_size() const;
815 sigc::signal<void> ScrubReady;
817 /* History (for editors, mixers, UIs etc.) */
819 /** Undo some transactions.
820 * @param n Number of transactions to undo.
822 void undo (uint32_t n) {
826 void redo (uint32_t n) {
830 UndoHistory& history() { return _history; }
832 uint32_t undo_depth() const { return _history.undo_depth(); }
833 uint32_t redo_depth() const { return _history.redo_depth(); }
834 string next_undo() const { return _history.next_undo(); }
835 string next_redo() const { return _history.next_redo(); }
837 void begin_reversible_command (const string& cmd_name);
838 void commit_reversible_command (Command* cmd = 0);
840 void add_command (Command *const cmd) {
841 current_trans->add_command (cmd);
844 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
846 // these commands are implemented in libs/ardour/session_command.cc
847 Command* memento_command_factory(XMLNode* n);
848 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
850 Command* global_state_command_factory (const XMLNode& n);
852 class GlobalRouteStateCommand : public Command
855 GlobalRouteStateCommand (Session&, void*);
856 GlobalRouteStateCommand (Session&, const XMLNode& node);
857 int set_state (const XMLNode&);
858 XMLNode& get_state ();
861 GlobalRouteBooleanState before, after;
867 class GlobalSoloStateCommand : public GlobalRouteStateCommand
870 GlobalSoloStateCommand (Session &, void *src);
871 GlobalSoloStateCommand (Session&, const XMLNode&);
872 void operator()(); //redo
874 XMLNode &get_state();
878 class GlobalMuteStateCommand : public GlobalRouteStateCommand
881 GlobalMuteStateCommand(Session &, void *src);
882 GlobalMuteStateCommand (Session&, const XMLNode&);
883 void operator()(); // redo
885 XMLNode &get_state();
889 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
892 GlobalRecordEnableStateCommand(Session &, void *src);
893 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
894 void operator()(); // redo
896 XMLNode &get_state();
900 class GlobalMeteringStateCommand : public Command
903 GlobalMeteringStateCommand(Session &, void *src);
904 GlobalMeteringStateCommand (Session&, const XMLNode&);
907 XMLNode &get_state();
908 int set_state (const XMLNode&);
914 GlobalRouteMeterState before;
915 GlobalRouteMeterState after;
920 boost::shared_ptr<IO> click_io() { return _click_io; }
922 /* disk, buffer loads */
924 uint32_t playback_load ();
925 uint32_t capture_load ();
926 uint32_t playback_load_min ();
927 uint32_t capture_load_min ();
929 void reset_playback_load_min ();
930 void reset_capture_load_min ();
932 float read_data_rate () const; // in usec
933 float write_data_rate () const;
937 void set_audio_range (list<AudioRange>&);
938 void set_music_range (list<MusicRange>&);
940 void request_play_range (bool yn);
941 bool get_play_range () const { return _play_range; }
943 /* buffers for gain and pan */
945 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
946 pan_t** pan_automation_buffer () const { return _pan_automation_buffer; }
948 /* buffers for conversion */
957 static long vst_callback (AEffect* effect,
964 typedef float (*compute_peak_t) (Sample *, nframes_t, float);
965 typedef void (*find_peaks_t) (Sample *, nframes_t, float *, float*);
966 typedef void (*apply_gain_to_buffer_t) (Sample *, nframes_t, float);
967 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, nframes_t, float);
968 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, nframes_t);
970 static compute_peak_t compute_peak;
971 static find_peaks_t find_peaks;
972 static apply_gain_to_buffer_t apply_gain_to_buffer;
973 static mix_buffers_with_gain_t mix_buffers_with_gain;
974 static mix_buffers_no_gain_t mix_buffers_no_gain;
976 static sigc::signal<void> SendFeedback;
980 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
982 void add_controllable (boost::shared_ptr<PBD::Controllable>);
983 void remove_controllable (PBD::Controllable*);
986 friend class AudioEngine;
987 void set_block_size (nframes_t nframes);
988 void set_frame_rate (nframes_t nframes);
991 friend class Diskstream;
993 void wait_till_butler_finished();
997 void schedule_curve_reallocation ();
998 void update_latency_compensation (bool, bool);
1001 int create (bool& new_session, const string& mix_template, nframes_t initial_length);
1004 nframes_t compute_initial_length ();
1007 PendingDeclickIn = 0x1,
1008 PendingDeclickOut = 0x2,
1009 StopPendingCapture = 0x4,
1010 AutoReturning = 0x10,
1011 PendingLocate = 0x20,
1012 PendingSetLoop = 0x40
1015 /* stuff used in process() should be close together to
1019 typedef void (Session::*process_function_type)(nframes_t);
1021 AudioEngine& _engine;
1022 mutable gint processing_prohibited;
1023 process_function_type process_function;
1024 process_function_type last_process_function;
1025 bool waiting_for_sync_offset;
1026 nframes_t _base_frame_rate;
1027 nframes_t _current_frame_rate; //this includes video pullup offset
1028 nframes_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1029 int transport_sub_state;
1030 mutable gint _record_status;
1031 volatile nframes_t _transport_frame;
1032 Location* end_location;
1033 Location* start_location;
1036 volatile float _transport_speed;
1037 volatile float _desired_transport_speed;
1038 float _last_transport_speed;
1039 bool auto_play_legal;
1040 nframes_t _last_slave_transport_frame;
1041 nframes_t maximum_output_latency;
1042 nframes_t last_stop_frame;
1043 volatile nframes64_t _requested_return_frame;
1044 BufferSet* _scratch_buffers;
1045 BufferSet* _silent_buffers;
1046 BufferSet* _mix_buffers;
1047 nframes_t current_block_size;
1048 nframes_t _worst_output_latency;
1049 nframes_t _worst_input_latency;
1050 nframes_t _worst_track_latency;
1051 bool _have_captured;
1053 float _meter_falloff;
1054 bool _end_location_is_free;
1056 void set_worst_io_latencies ();
1057 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1058 set_worst_io_latencies ();
1061 void update_latency_compensation_proxy (void* ignored);
1063 void ensure_buffers (ChanCount howmany);
1065 void process_scrub (nframes_t);
1066 void process_without_events (nframes_t);
1067 void process_with_events (nframes_t);
1068 void process_audition (nframes_t);
1069 void process_export (nframes_t);
1070 int process_export_fw (nframes_t);
1072 /* slave tracking */
1074 static const int delta_accumulator_size = 25;
1075 int delta_accumulator_cnt;
1076 long delta_accumulator[delta_accumulator_size];
1077 long average_slave_delta;
1079 bool have_first_delta_accumulator;
1087 SlaveState slave_state;
1088 nframes_t slave_wait_end;
1090 void reset_slave_state ();
1091 bool follow_slave (nframes_t, nframes_t);
1092 void set_slave_source (SlaveSource);
1095 bool _exporting_realtime;
1096 boost::shared_ptr<ExportHandler> export_handler;
1098 void prepare_diskstreams ();
1099 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1100 int process_routes (nframes_t, nframes_t);
1101 int silent_process_routes (nframes_t, nframes_t);
1103 bool get_rec_monitors_input () {
1104 if (actively_recording()) {
1107 if (Config->get_auto_input()) {
1115 int get_transport_declick_required () {
1117 if (transport_sub_state & PendingDeclickIn) {
1118 transport_sub_state &= ~PendingDeclickIn;
1120 } else if (transport_sub_state & PendingDeclickOut) {
1127 bool maybe_stop (nframes_t limit) {
1128 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1135 bool maybe_sync_start (nframes_t&, nframes_t&);
1137 void check_declick_out ();
1139 MIDI::MachineControl* mmc;
1140 MIDI::Port* _mmc_port;
1141 MIDI::Port* _mtc_port;
1142 MIDI::Port* _midi_port;
1143 MIDI::Port* _midi_clock_port;
1146 bool session_send_mmc;
1147 bool session_send_mtc;
1148 bool session_midi_feedback;
1151 nframes_t last_loopend;
1153 boost::scoped_ptr<SessionDirectory> _session_dir;
1155 RingBuffer<Event*> pending_events;
1158 void when_engine_running ();
1159 void graph_reordered ();
1161 string _current_snapshot_name;
1163 XMLTree* state_tree;
1164 bool state_was_pending;
1165 StateOfTheState _state_of_the_state;
1168 int load_options (const XMLNode&);
1169 XMLNode& get_options () const;
1170 int load_state (string snapshot_name);
1171 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1173 nframes_t _last_roll_location;
1174 nframes_t _last_record_location;
1176 bool pending_locate_roll;
1177 nframes_t pending_locate_frame;
1178 bool pending_locate_flush;
1180 bool pending_auto_loop;
1182 Sample* butler_mixdown_buffer;
1183 float* butler_gain_buffer;
1184 pthread_t butler_thread;
1185 Glib::Mutex butler_request_lock;
1186 Glib::Cond butler_paused;
1187 bool butler_should_run;
1188 mutable gint butler_should_do_transport_work;
1189 int butler_request_pipe[2];
1191 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1193 struct ButlerRequest {
1202 enum PostTransportWork {
1203 PostTransportStop = 0x1,
1204 PostTransportDisableRecord = 0x2,
1205 PostTransportPosition = 0x8,
1206 PostTransportDidRecord = 0x20,
1207 PostTransportDuration = 0x40,
1208 PostTransportLocate = 0x80,
1209 PostTransportRoll = 0x200,
1210 PostTransportAbort = 0x800,
1211 PostTransportOverWrite = 0x1000,
1212 PostTransportSpeed = 0x2000,
1213 PostTransportAudition = 0x4000,
1214 PostTransportScrub = 0x8000,
1215 PostTransportReverse = 0x10000,
1216 PostTransportInputChange = 0x20000,
1217 PostTransportCurveRealloc = 0x40000
1220 static const PostTransportWork ProcessCannotProceedMask =
1221 PostTransportWork (PostTransportInputChange|
1223 PostTransportReverse|
1224 PostTransportCurveRealloc|
1226 PostTransportAudition|
1227 PostTransportLocate|
1230 PostTransportWork post_transport_work;
1232 void summon_butler ();
1233 void schedule_butler_transport_work ();
1234 int start_butler_thread ();
1235 void terminate_butler_thread ();
1236 static void *_butler_thread_work (void *arg);
1237 void* butler_thread_work ();
1239 uint32_t cumulative_rf_motion;
1242 void set_rf_speed (float speed);
1243 void reset_rf_scale (nframes_t frames_moved);
1245 Locations _locations;
1246 void locations_changed ();
1247 void locations_added (Location*);
1248 void handle_locations_changed (Locations::LocationList&);
1250 sigc::connection auto_punch_start_changed_connection;
1251 sigc::connection auto_punch_end_changed_connection;
1252 sigc::connection auto_punch_changed_connection;
1253 void auto_punch_start_changed (Location *);
1254 void auto_punch_end_changed (Location *);
1255 void auto_punch_changed (Location *);
1257 sigc::connection auto_loop_start_changed_connection;
1258 sigc::connection auto_loop_end_changed_connection;
1259 sigc::connection auto_loop_changed_connection;
1260 void auto_loop_changed (Location *);
1262 typedef list<Event *> Events;
1264 Events immediate_events;
1265 Events::iterator next_event;
1267 /* there can only ever be one of each of these */
1269 Event *auto_loop_event;
1270 Event *punch_out_event;
1271 Event *punch_in_event;
1275 void dump_events () const;
1276 void queue_event (Event *ev);
1277 void merge_event (Event*);
1278 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1279 bool _replace_event (Event*);
1280 bool _remove_event (Event *);
1281 void _clear_event_type (Event::Type);
1283 void first_stage_init (string path, string snapshot_name);
1284 int second_stage_init (bool new_tracks);
1285 void find_current_end ();
1286 void remove_empty_sounds ();
1288 void setup_midi_control ();
1289 int midi_read (MIDI::Port *);
1291 void enable_record ();
1293 void increment_transport_position (uint32_t val) {
1294 if (max_frames - val < _transport_frame) {
1295 _transport_frame = max_frames;
1297 _transport_frame += val;
1301 void decrement_transport_position (uint32_t val) {
1302 if (val < _transport_frame) {
1303 _transport_frame -= val;
1305 _transport_frame = 0;
1309 void post_transport_motion ();
1310 static void *session_loader_thread (void *arg);
1314 void set_next_event ();
1315 void process_event (Event *ev);
1317 /* MIDI Machine Control */
1319 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1321 void spp_start (MIDI::Parser&);
1322 void spp_continue (MIDI::Parser&);
1323 void spp_stop (MIDI::Parser&);
1325 void midi_clock_start (MIDI::Parser&);
1326 void midi_clock_continue (MIDI::Parser&);
1327 void midi_clock_stop (MIDI::Parser&);
1329 void mmc_deferred_play (MIDI::MachineControl &);
1330 void mmc_stop (MIDI::MachineControl &);
1331 void mmc_step (MIDI::MachineControl &, int);
1332 void mmc_pause (MIDI::MachineControl &);
1333 void mmc_record_pause (MIDI::MachineControl &);
1334 void mmc_record_strobe (MIDI::MachineControl &);
1335 void mmc_record_exit (MIDI::MachineControl &);
1336 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1337 void mmc_fast_forward (MIDI::MachineControl &);
1338 void mmc_rewind (MIDI::MachineControl &);
1339 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1340 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1341 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1343 struct timeval last_mmc_step;
1346 typedef sigc::slot<bool> MidiTimeoutCallback;
1347 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1349 MidiTimeoutList midi_timeouts;
1350 bool mmc_step_timeout ();
1352 MIDI::byte mmc_buffer[32];
1353 MIDI::byte mtc_msg[16];
1354 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1355 MIDI::byte midi_msg[16];
1356 nframes_t outbound_mtc_smpte_frame;
1357 SMPTE::Time transmitting_smpte_time;
1358 int next_quarter_frame_to_send;
1360 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1361 nframes_t _frames_per_hour;
1362 nframes_t _smpte_frames_per_hour;
1363 nframes_t _smpte_offset;
1364 bool _smpte_offset_negative;
1366 /* cache the most-recently requested time conversions. This helps when we
1367 * have multiple clocks showing the same time (e.g. the transport frame) */
1368 bool last_smpte_valid;
1369 nframes_t last_smpte_when;
1370 SMPTE::Time last_smpte;
1372 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1374 int send_full_time_code(nframes_t nframes);
1375 int send_midi_time_code_for_cycle(nframes_t nframes);
1377 nframes_t adjust_apparent_position (nframes_t frames);
1379 void reset_record_status ();
1381 int no_roll (nframes_t nframes, nframes_t offset);
1383 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1384 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1386 struct MIDIRequest {
1398 Glib::Mutex midi_lock;
1399 pthread_t midi_thread;
1400 int midi_request_pipe[2];
1401 RingBuffer<MIDIRequest*> midi_requests;
1403 int start_midi_thread ();
1404 void terminate_midi_thread ();
1405 void poke_midi_thread ();
1406 static void *_midi_thread_work (void *arg);
1407 void midi_thread_work ();
1408 void change_midi_ports ();
1409 int use_config_midi_ports ();
1411 mutable gint butler_active;
1412 bool waiting_to_start;
1414 void set_play_loop (bool yn);
1415 void overwrite_some_buffers (Diskstream*);
1416 void flush_all_inserts ();
1417 int micro_locate (nframes_t distance);
1418 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1419 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1420 void force_locate (nframes_t frame, bool with_roll = false);
1421 void set_diskstream_speed (Diskstream*, float speed);
1422 void set_transport_speed (float speed, bool abort = false);
1423 void stop_transport (bool abort = false);
1424 void start_transport ();
1425 void actually_start_transport ();
1426 void realtime_stop (bool abort);
1427 void non_realtime_start_scrub ();
1428 void non_realtime_set_speed ();
1429 void non_realtime_locate ();
1430 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1431 void non_realtime_overwrite (int entry_request_count, bool& finished);
1432 void butler_transport_work ();
1433 void post_transport ();
1434 void engine_halted ();
1435 void xrun_recovery ();
1437 TempoMap *_tempo_map;
1438 void tempo_map_changed (Change);
1440 /* edit/mix groups */
1442 int load_route_groups (const XMLNode&, bool is_edit);
1443 int load_edit_groups (const XMLNode&);
1444 int load_mix_groups (const XMLNode&);
1447 list<RouteGroup *> edit_groups;
1448 list<RouteGroup *> mix_groups;
1452 SerializedRCUManager<DiskstreamList> diskstreams;
1454 uint32_t audio_dstream_buffer_size;
1455 uint32_t midi_dstream_buffer_size;
1456 int load_diskstreams (const XMLNode&);
1460 SerializedRCUManager<RouteList> routes;
1462 void add_routes (RouteList&, bool save);
1463 uint32_t destructive_index;
1465 int load_routes (const XMLNode&);
1466 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1470 bool solo_update_disabled;
1471 bool currently_soloing;
1473 void route_mute_changed (void *src);
1474 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1475 void catch_up_on_solo ();
1476 void update_route_solo_state ();
1477 void modify_solo_mute (bool, bool);
1478 void strip_portname_for_solo (string& portname);
1480 /* REGION MANAGEMENT */
1482 std::map<std::string,uint32_t> region_name_map;
1483 void update_region_name_map (boost::shared_ptr<Region>);
1485 mutable Glib::Mutex region_lock;
1486 typedef map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1489 void add_region (boost::shared_ptr<Region>);
1490 void region_changed (Change, boost::weak_ptr<Region>);
1491 void remove_region (boost::weak_ptr<Region>);
1493 int load_regions (const XMLNode& node);
1497 mutable Glib::Mutex source_lock;
1498 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1503 SourceMap get_sources() { return sources; }
1508 int load_sources (const XMLNode& node);
1509 XMLNode& get_sources_as_xml ();
1511 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1515 mutable Glib::Mutex playlist_lock;
1516 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1517 PlaylistList playlists;
1518 PlaylistList unused_playlists;
1520 int load_playlists (const XMLNode&);
1521 int load_unused_playlists (const XMLNode&);
1522 void remove_playlist (boost::weak_ptr<Playlist>);
1523 void track_playlist (bool, boost::weak_ptr<Playlist>);
1525 boost::shared_ptr<Playlist> playlist_factory (string name);
1526 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1528 void playlist_length_changed ();
1529 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1531 /* NAMED SELECTIONS */
1533 mutable Glib::Mutex named_selection_lock;
1534 typedef set<NamedSelection *> NamedSelectionList;
1535 NamedSelectionList named_selections;
1537 int load_named_selections (const XMLNode&);
1539 NamedSelection *named_selection_factory (string name);
1540 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1542 /* CURVES and AUTOMATION LISTS */
1543 std::map<PBD::ID, Curve*> curves;
1544 std::map<PBD::ID, AutomationList*> automation_lists;
1546 /* DEFAULT FADE CURVES */
1548 float default_fade_steepness;
1549 float default_fade_msecs;
1553 boost::shared_ptr<Auditioner> auditioner;
1554 void set_audition (boost::shared_ptr<Region>);
1555 void non_realtime_set_audition ();
1556 boost::shared_ptr<Region> pending_audition_region;
1562 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1564 /* INSERT AND SEND MANAGEMENT */
1566 list<PortInsert *> _port_inserts;
1567 list<PluginInsert *> _plugin_inserts;
1568 list<Send *> _sends;
1569 boost::dynamic_bitset<uint32_t> send_bitset;
1570 boost::dynamic_bitset<uint32_t> insert_bitset;
1572 uint32_t insert_cnt;
1575 void add_processor (Processor *);
1576 void remove_processor (Processor *);
1580 struct space_and_path {
1581 uint32_t blocks; /* 4kB blocks */
1589 struct space_and_path_ascending_cmp {
1590 bool operator() (space_and_path a, space_and_path b) {
1591 return a.blocks > b.blocks;
1595 void setup_raid_path (string path);
1597 vector<space_and_path> session_dirs;
1598 vector<space_and_path>::iterator last_rr_session_dir;
1599 uint32_t _total_free_4k_blocks;
1600 Glib::Mutex space_lock;
1602 string get_best_session_directory_for_new_source ();
1603 void refresh_disk_space ();
1605 mutable gint _playback_load;
1606 mutable gint _capture_load;
1607 mutable gint _playback_load_min;
1608 mutable gint _capture_load_min;
1612 typedef list<boost::shared_ptr<Bundle> > BundleList;
1613 mutable Glib::Mutex bundle_lock;
1614 BundleList _bundles;
1615 XMLNode* _bundle_xml_node;
1616 int load_bundles (XMLNode const &);
1618 void reverse_diskstream_buffers ();
1620 UndoHistory _history;
1621 UndoTransaction* current_trans;
1623 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1624 GlobalRouteMeterState get_global_route_metering ();
1626 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1627 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1629 void set_global_mute (GlobalRouteBooleanState s, void *src);
1630 void set_global_solo (GlobalRouteBooleanState s, void *src);
1631 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1633 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1634 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1635 void reset_jack_connection (jack_client_t* jack);
1636 void record_enable_change_all (bool yn);
1638 XMLNode& state(bool);
1648 Click (nframes_t s, nframes_t d, const Sample *b)
1649 : start (s), duration (d), data (b) { offset = 0; }
1651 void *operator new(size_t ignored) {
1652 return pool.alloc ();
1655 void operator delete(void *ptr, size_t size) {
1663 typedef list<Click*> Clicks;
1667 boost::shared_ptr<IO> _click_io;
1669 Sample* click_emphasis_data;
1670 nframes_t click_length;
1671 nframes_t click_emphasis_length;
1672 mutable Glib::RWLock click_lock;
1674 static const Sample default_click[];
1675 static const nframes_t default_click_length;
1676 static const Sample default_click_emphasis[];
1677 static const nframes_t default_click_emphasis_length;
1680 void setup_click_sounds (int which);
1681 void clear_clicks ();
1682 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1684 vector<Route*> master_outs;
1686 /* range playback */
1688 list<AudioRange> current_audio_range;
1690 void set_play_range (bool yn);
1691 void setup_auto_play ();
1696 boost::shared_ptr<IO> _master_out;
1697 boost::shared_ptr<IO> _control_out;
1699 gain_t* _gain_automation_buffer;
1700 pan_t** _pan_automation_buffer;
1701 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1702 uint32_t _npan_buffers;
1706 long _vst_callback (VSTPlugin*,
1713 /* number of hardware ports we're using,
1714 based on max (requested,available)
1717 uint32_t n_physical_outputs;
1718 uint32_t n_physical_inputs;
1721 int find_all_sources (std::string path, std::set<std::string>& result);
1722 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1724 LayerModel layer_model;
1725 CrossfadeModel xfade_model;
1727 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1728 Glib::Mutex controllables_lock;
1729 Controllables controllables;
1731 void reset_native_file_format();
1732 bool first_file_data_format_reset;
1733 bool first_file_header_format_reset;
1735 void config_changed (const char*);
1737 XMLNode& get_control_protocol_state ();
1739 void set_history_depth (uint32_t depth);
1740 void sync_order_keys ();
1742 static bool _disable_all_loaded_plugins;
1746 SessionMetadata * _metadata;
1748 SessionMetadata & metadata () { return *_metadata; }
1751 } // namespace ARDOUR
1753 #endif /* __ardour_session_h__ */