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__
31 #include <boost/dynamic_bitset.hpp>
32 #include <boost/scoped_ptr.hpp>
33 #include <boost/weak_ptr.hpp>
34 #include <boost/utility.hpp>
38 #include <glibmm/thread.h>
40 #include "pbd/error.h"
43 #include "pbd/statefuldestructible.h"
46 #include "midi++/mmc.h"
47 #include "midi++/types.h"
49 #include "pbd/destructible.h"
50 #include "pbd/stateful.h"
52 #include "ardour/ardour.h"
53 #include "ardour/chan_count.h"
54 #include "ardour/configuration.h"
55 #include "ardour/location.h"
56 #include "ardour/smpte.h"
76 class AudioDiskstream;
78 class AudioFileSource;
87 class ControlProtocolInfo;
108 class SessionDirectory;
109 class SessionMetadata;
120 class Session : public PBD::StatefulDestructible, public boost::noncopyable
123 typedef std::pair<boost::weak_ptr<Route>,bool> RouteBooleanState;
124 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
125 typedef std::pair<boost::weak_ptr<Route>,MeterPoint> RouteMeterState;
126 typedef vector<RouteMeterState> GlobalRouteMeterState;
150 InputConfigurationChange,
154 /* only one of each of these events can be queued at any one time */
169 nframes_t action_frame;
170 nframes_t target_frame;
176 nframes_t target2_frame;
181 list<AudioRange> audio_range;
182 list<MusicRange> music_range;
184 boost::shared_ptr<Region> region;
186 Event(Type t, Action a, nframes_t when, nframes_t where, double spd, bool yn = false)
189 , action_frame (when)
190 , target_frame (where)
195 void set_ptr (void* p) {
199 bool before (const Event& other) const {
200 return action_frame < other.action_frame;
203 bool after (const Event& other) const {
204 return action_frame > other.action_frame;
207 static bool compare (const Event *e1, const Event *e2) {
208 return e1->before (*e2);
211 void *operator new (size_t ignored) {
212 return pool.alloc ();
215 void operator delete(void *ptr, size_t size) {
219 static const nframes_t Immediate = 0;
222 static MultiAllocSingleReleasePool pool;
225 /* creating from an XML file */
227 Session (AudioEngine&,
228 const string& fullpath,
229 const string& snapshot_name,
230 string mix_template = "");
232 /* creating a new Session */
234 Session (AudioEngine&,
236 string snapshot_name,
237 AutoConnectOption input_auto_connect,
238 AutoConnectOption output_auto_connect,
239 uint32_t control_out_channels,
240 uint32_t master_out_channels,
241 uint32_t n_physical_in,
242 uint32_t n_physical_out,
243 nframes_t initial_length);
247 string path() const { return _path; }
248 string name() const { return _name; }
249 string snap_name() const { return _current_snapshot_name; }
250 string raid_path () const;
252 void set_snap_name ();
256 bool dirty() const { return _state_of_the_state & Dirty; }
257 void set_deletion_in_progress ();
258 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
259 sigc::signal<void> DirtyChanged;
261 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
263 static sigc::signal<void> AutoBindingOn;
264 static sigc::signal<void> AutoBindingOff;
266 static sigc::signal<void,std::string> Dialog;
268 std::string sound_dir (bool with_path = true) const;
269 std::string peak_dir () const;
270 std::string dead_sound_dir () const;
271 std::string automation_dir () const;
272 std::string analysis_dir() const;
274 int ensure_subdirs ();
276 Glib::ustring peak_path (Glib::ustring) const;
278 static string change_source_path_by_name (string oldpath, string oldname, string newname, bool destructive);
280 string peak_path_from_audio_path (string) const;
281 string new_audio_source_name (const string&, uint32_t nchans, uint32_t chan, bool destructive);
282 string new_midi_source_name (const string&);
283 string new_source_path_from_name (DataType type, const string&);
285 void process (nframes_t nframes);
287 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
288 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
289 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
291 void add_diskstream (boost::shared_ptr<Diskstream>);
292 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
293 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
295 bool have_captured() const { return _have_captured; }
297 void refill_all_diskstream_buffers ();
298 uint32_t audio_diskstream_buffer_size() const { return audio_dstream_buffer_size; }
299 uint32_t midi_diskstream_buffer_size() const { return midi_dstream_buffer_size; }
301 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
302 uint32_t n_diskstreams() const;
304 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
306 int load_routes (const XMLNode&);
307 boost::shared_ptr<RouteList> get_routes() const {
308 return routes.reader ();
311 uint32_t nroutes() const { return routes.reader()->size(); }
312 uint32_t ntracks () const;
313 uint32_t nbusses () const;
315 boost::shared_ptr<BundleList> bundles () {
316 return _bundles.reader ();
319 struct RoutePublicOrderSorter {
320 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
323 void sync_order_keys (const char* base);
325 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
326 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
327 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
329 boost::shared_ptr<Route> route_by_name (string);
330 boost::shared_ptr<Route> route_by_id (PBD::ID);
331 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
333 bool route_name_unique (string) const;
335 bool get_record_enabled() const {
336 return (record_status () >= Enabled);
339 RecordState record_status() const {
340 return (RecordState) g_atomic_int_get (&_record_status);
343 bool actively_recording () {
344 return record_status() == Recording;
347 bool record_enabling_legal () const;
348 void maybe_enable_record ();
349 void disable_record (bool rt_context, bool force = false);
350 void step_back_from_record ();
352 void maybe_write_autosave ();
354 /* Proxy signal for region hidden changes */
356 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
358 /* Emitted when all i/o connections are complete */
360 sigc::signal<void> IOConnectionsComplete;
362 /* Record status signals */
364 sigc::signal<void> RecordStateChanged;
366 /* Transport mechanism signals */
368 sigc::signal<void> TransportStateChange; /* generic */
369 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
370 sigc::signal<void> DurationChanged;
371 sigc::signal<void,nframes_t> Xrun;
372 sigc::signal<void> TransportLooped;
374 /** emitted when a locate has occurred */
375 sigc::signal<void> Located;
377 sigc::signal<void,RouteList&> RouteAdded;
379 void request_roll_at_and_return (nframes_t start, nframes_t return_to);
380 void request_bounded_roll (nframes_t start, nframes_t end);
381 void request_stop (bool abort = false);
382 void request_locate (nframes_t frame, bool with_roll = false);
384 void request_play_loop (bool yn);
385 bool get_play_loop () const { return play_loop; }
387 nframes_t last_transport_start() const { return _last_roll_location; }
388 void goto_end () { request_locate (end_location->start(), false);}
389 void goto_start () { request_locate (start_location->start(), false); }
390 void set_session_start (nframes_t start) { start_location->set_start(start); }
391 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
392 void use_rf_shuttle_speed ();
393 void allow_auto_play (bool yn);
394 void request_transport_speed (double speed);
395 void request_overwrite_buffer (Diskstream*);
396 void request_diskstream_speed (Diskstream&, double speed);
397 void request_input_change_handling ();
399 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
400 bool transport_locked () const;
404 int remove_region_from_region_list (boost::shared_ptr<Region>);
406 nframes_t get_maximum_extent () const;
407 nframes_t current_end_frame() const { return end_location->start(); }
408 nframes_t current_start_frame() const { return start_location->start(); }
409 /// "actual" sample rate of session, set by current audioengine rate, pullup/down etc.
410 nframes_t frame_rate() const { return _current_frame_rate; }
411 /// "native" sample rate of session, regardless of current audioengine rate, pullup/down etc
412 nframes_t nominal_frame_rate() const { return _nominal_frame_rate; }
413 nframes_t frames_per_hour() const { return _frames_per_hour; }
415 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
416 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
418 MIDI::byte get_mtc_smpte_bits() const {
419 return mtc_smpte_bits; /* encoding of SMTPE type for MTC */
422 float smpte_frames_per_second() const;
423 bool smpte_drop_frames() const;
427 Locations *locations() { return &_locations; }
429 sigc::signal<void,Location*> auto_loop_location_changed;
430 sigc::signal<void,Location*> auto_punch_location_changed;
431 sigc::signal<void> locations_modified;
433 void set_auto_punch_location (Location *);
434 void set_auto_loop_location (Location *);
435 int location_name(string& result, string base = string(""));
437 void reset_input_monitor_state ();
439 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
440 void remove_event (nframes_t frame, Event::Type type);
441 void clear_events (Event::Type type);
443 nframes_t get_block_size() const { return current_block_size; }
444 nframes_t worst_output_latency () const { return _worst_output_latency; }
445 nframes_t worst_input_latency () const { return _worst_input_latency; }
446 nframes_t worst_track_latency () const { return _worst_track_latency; }
448 int save_state (std::string snapshot_name, bool pending = false);
449 int restore_state (std::string snapshot_name);
450 int save_template (std::string template_name);
451 int save_history (std::string snapshot_name = "");
452 int restore_history (std::string snapshot_name);
453 void remove_state (std::string snapshot_name);
454 void rename_state (std::string old_name, std::string new_name);
455 void remove_pending_capture_state ();
457 static int rename_template (std::string old_name, std::string new_name);
458 static int delete_template (std::string name);
460 sigc::signal<void,string> StateSaved;
461 sigc::signal<void> StateReady;
463 vector<string*>* possible_states() const;
464 static vector<string*>* possible_states(string path);
466 XMLNode& get_state();
467 int set_state(const XMLNode& node); // not idempotent
468 XMLNode& get_template();
470 /// The instant xml file is written to the session directory
471 void add_instant_xml (XMLNode&, bool write_to_config = true);
472 XMLNode* instant_xml (const std::string& str);
474 enum StateOfTheState {
479 InitialConnecting = 0x8,
484 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
486 RouteGroup* add_edit_group (string);
487 RouteGroup* add_mix_group (string);
489 void remove_edit_group (RouteGroup&);
490 void remove_mix_group (RouteGroup&);
492 RouteGroup *mix_group_by_name (string);
493 RouteGroup *edit_group_by_name (string);
495 sigc::signal<void,RouteGroup*> edit_group_added;
496 sigc::signal<void,RouteGroup*> mix_group_added;
497 sigc::signal<void> edit_group_removed;
498 sigc::signal<void> mix_group_removed;
500 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
501 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
506 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
507 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
512 /* fundamental operations. duh. */
514 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
515 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 (
520 TrackMode mode = Normal, 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 ImportStatus : public InterThreadInfo {
623 volatile bool freeze;
624 std::vector<Glib::ustring> paths;
625 bool replace_existing_source;
631 void import_audiofiles (ImportStatus&);
632 bool sample_rate_convert (ImportStatus&, 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",
661 0 for "yes, delete this playlist",
662 1 for "no, don't delete this playlist".
664 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
666 /** handlers should return 0 for "ignore the rate mismatch",
667 !0 for "do not use this session"
669 static sigc::signal<int,nframes_t, nframes_t> AskAboutSampleRateMismatch;
671 /** handlers should return !0 for use pending state, 0 for ignore it.
673 static sigc::signal<int> AskAboutPendingState;
675 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
677 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
679 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
680 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
682 /* playlist management */
684 boost::shared_ptr<Playlist> playlist_by_name (string name);
685 void unassigned_playlists (std::list<boost::shared_ptr<Playlist> > & list);
686 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
687 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
688 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
690 uint32_t n_playlists() const;
692 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
693 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
695 /* named selections */
697 NamedSelection* named_selection_by_name (string name);
698 void add_named_selection (NamedSelection *);
699 void remove_named_selection (NamedSelection *);
701 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
702 sigc::signal<void> NamedSelectionAdded;
703 sigc::signal<void> NamedSelectionRemoved;
705 /* Curves and AutomationLists (TODO when they go away) */
706 void add_automation_list(AutomationList*);
710 float get_default_fade_length () const { return default_fade_msecs; }
711 float get_default_fade_steepness () const { return default_fade_steepness; }
712 void set_default_fade (float steepness, float msecs);
716 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
717 void audition_playlist ();
718 void audition_region (boost::shared_ptr<Region>);
719 void cancel_audition ();
720 bool is_auditioning () const;
722 sigc::signal<void,bool> AuditionActive;
724 /* flattening stuff */
726 boost::shared_ptr<Region> write_one_track (AudioTrack&, nframes_t start, nframes_t end,
727 bool overwrite, vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot);
728 int freeze (InterThreadInfo&);
730 /* session-wide solo/mute/rec-enable */
732 bool soloing() const { return currently_soloing; }
734 void set_all_solo (bool);
735 void set_all_mute (bool);
737 sigc::signal<void,bool> SoloActive;
738 sigc::signal<void> SoloChanged;
740 void record_disenable_all ();
741 void record_enable_all ();
743 /* control/master out */
745 boost::shared_ptr<IO> control_out() const { return _control_out; }
746 boost::shared_ptr<IO> master_out() const { return _master_out; }
748 /* insert/send management */
750 uint32_t n_port_inserts() const { return _port_inserts.size(); }
751 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
752 uint32_t n_sends() const { return _sends.size(); }
754 static void set_disable_all_loaded_plugins (bool yn) {
755 _disable_all_loaded_plugins = yn;
757 static bool get_disable_all_loaded_plugins() {
758 return _disable_all_loaded_plugins;
761 uint32_t next_send_id();
762 uint32_t next_insert_id();
763 void mark_send_id (uint32_t);
764 void mark_insert_id (uint32_t);
766 /* s/w "RAID" management */
768 nframes_t available_capture_duration();
772 void add_bundle (boost::shared_ptr<Bundle>);
773 void remove_bundle (boost::shared_ptr<Bundle>);
774 boost::shared_ptr<Bundle> bundle_by_name (string) const;
776 sigc::signal<void,boost::shared_ptr<Bundle> > BundleAdded;
777 sigc::signal<void,boost::shared_ptr<Bundle> > BundleRemoved;
781 void midi_panic(void);
782 int set_mtc_port (string port_tag);
783 int set_mmc_port (string port_tag);
784 int set_midi_port (string port_tag);
785 int set_midi_clock_port (string port_tag);
786 MIDI::Port *mtc_port() const { return _mtc_port; }
787 MIDI::Port *mmc_port() const { return _mmc_port; }
788 MIDI::Port *midi_port() const { return _midi_port; }
789 MIDI::Port *midi_clock_port() const { return _midi_clock_port; }
791 sigc::signal<void> MTC_PortChanged;
792 sigc::signal<void> MMC_PortChanged;
793 sigc::signal<void> MIDI_PortChanged;
794 sigc::signal<void> MIDIClock_PortChanged;
796 void set_trace_midi_input (bool, MIDI::Port* port = 0);
797 void set_trace_midi_output (bool, MIDI::Port* port = 0);
799 bool get_trace_midi_input(MIDI::Port *port = 0);
800 bool get_trace_midi_output(MIDI::Port *port = 0);
802 void set_mmc_receive_device_id (uint32_t id);
803 void set_mmc_send_device_id (uint32_t id);
807 void start_scrub (nframes_t where);
809 void set_scrub_speed (float);
810 nframes_t scrub_buffer_size() const;
811 sigc::signal<void> ScrubReady;
813 /* History (for editors, mixers, UIs etc.) */
815 /** Undo some transactions.
816 * @param n Number of transactions to undo.
818 void undo (uint32_t n) {
822 void redo (uint32_t n) {
826 UndoHistory& history() { return _history; }
828 uint32_t undo_depth() const { return _history.undo_depth(); }
829 uint32_t redo_depth() const { return _history.redo_depth(); }
830 string next_undo() const { return _history.next_undo(); }
831 string next_redo() const { return _history.next_redo(); }
833 void begin_reversible_command (const string& cmd_name);
834 void commit_reversible_command (Command* cmd = 0);
836 void add_command (Command *const cmd) {
837 current_trans->add_command (cmd);
840 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
842 // these commands are implemented in libs/ardour/session_command.cc
843 Command* memento_command_factory(XMLNode* n);
844 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
846 Command* global_state_command_factory (const XMLNode& n);
848 class GlobalRouteStateCommand : public Command
851 GlobalRouteStateCommand (Session&, void*);
852 GlobalRouteStateCommand (Session&, const XMLNode& node);
853 int set_state (const XMLNode&);
854 XMLNode& get_state ();
857 GlobalRouteBooleanState before, after;
863 class GlobalSoloStateCommand : public GlobalRouteStateCommand
866 GlobalSoloStateCommand (Session &, void *src);
867 GlobalSoloStateCommand (Session&, const XMLNode&);
868 void operator()(); //redo
870 XMLNode &get_state();
874 class GlobalMuteStateCommand : public GlobalRouteStateCommand
877 GlobalMuteStateCommand(Session &, void *src);
878 GlobalMuteStateCommand (Session&, const XMLNode&);
879 void operator()(); // redo
881 XMLNode &get_state();
885 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
888 GlobalRecordEnableStateCommand(Session &, void *src);
889 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
890 void operator()(); // redo
892 XMLNode &get_state();
896 class GlobalMeteringStateCommand : public Command
899 GlobalMeteringStateCommand(Session &, void *src);
900 GlobalMeteringStateCommand (Session&, const XMLNode&);
903 XMLNode &get_state();
904 int set_state (const XMLNode&);
910 GlobalRouteMeterState before;
911 GlobalRouteMeterState after;
916 boost::shared_ptr<IO> click_io() { return _click_io; }
918 /* disk, buffer loads */
920 uint32_t playback_load ();
921 uint32_t capture_load ();
922 uint32_t playback_load_min ();
923 uint32_t capture_load_min ();
925 void reset_playback_load_min ();
926 void reset_capture_load_min ();
928 float read_data_rate () const; // in usec
929 float write_data_rate () const;
933 void set_audio_range (list<AudioRange>&);
934 void set_music_range (list<MusicRange>&);
936 void request_play_range (bool yn);
937 bool get_play_range () const { return _play_range; }
939 /* buffers for gain and pan */
941 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
942 pan_t** pan_automation_buffer () const { return _pan_automation_buffer; }
946 static long vst_callback (AEffect* effect,
953 static sigc::signal<void> SendFeedback;
957 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
959 void add_controllable (boost::shared_ptr<PBD::Controllable>);
960 void remove_controllable (PBD::Controllable*);
962 SessionMetadata & metadata () { return *_metadata; }
965 friend class AudioEngine;
966 void set_block_size (nframes_t nframes);
967 void set_frame_rate (nframes_t nframes);
970 friend class Diskstream;
972 void wait_till_butler_finished();
976 void schedule_curve_reallocation ();
977 void update_latency_compensation (bool, bool);
980 int create (bool& new_session, const string& mix_template, nframes_t initial_length);
983 nframes_t compute_initial_length ();
986 PendingDeclickIn = 0x1,
987 PendingDeclickOut = 0x2,
988 StopPendingCapture = 0x4,
989 AutoReturning = 0x10,
990 PendingLocate = 0x20,
991 PendingSetLoop = 0x40
994 /* stuff used in process() should be close together to
998 typedef void (Session::*process_function_type)(nframes_t);
1000 AudioEngine& _engine;
1001 mutable gint processing_prohibited;
1002 process_function_type process_function;
1003 process_function_type last_process_function;
1004 bool waiting_for_sync_offset;
1005 nframes_t _base_frame_rate;
1006 nframes_t _current_frame_rate; //this includes video pullup offset
1007 nframes_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1008 int transport_sub_state;
1009 mutable gint _record_status;
1010 volatile nframes_t _transport_frame;
1011 Location* end_location;
1012 Location* start_location;
1015 volatile double _transport_speed;
1016 double _last_transport_speed;
1017 // fixed point transport speed for varispeed playback
1019 // fixed point target transport speed for varispeed playback when tempo changes
1020 uint64_t target_phi;
1021 // fixed point phase for varispeed playback
1023 bool auto_play_legal;
1024 nframes_t _last_slave_transport_frame;
1025 nframes_t maximum_output_latency;
1026 volatile nframes64_t _requested_return_frame;
1027 BufferSet* _scratch_buffers;
1028 BufferSet* _silent_buffers;
1029 BufferSet* _mix_buffers;
1030 nframes_t current_block_size;
1031 nframes_t _worst_output_latency;
1032 nframes_t _worst_input_latency;
1033 nframes_t _worst_track_latency;
1034 bool _have_captured;
1036 float _meter_falloff;
1037 bool _end_location_is_free;
1039 void set_worst_io_latencies ();
1040 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1041 set_worst_io_latencies ();
1044 void update_latency_compensation_proxy (void* ignored);
1046 void ensure_buffers (ChanCount howmany);
1048 void process_scrub (nframes_t);
1049 void process_without_events (nframes_t);
1050 void process_with_events (nframes_t);
1051 void process_audition (nframes_t);
1052 void process_export (nframes_t);
1053 int process_export_fw (nframes_t);
1055 /* slave tracking */
1057 static const int delta_accumulator_size = 25;
1058 int delta_accumulator_cnt;
1059 long delta_accumulator[delta_accumulator_size];
1060 long average_slave_delta;
1062 bool have_first_delta_accumulator;
1070 SlaveState slave_state;
1071 nframes_t slave_wait_end;
1073 void reset_slave_state ();
1074 bool follow_slave (nframes_t, nframes_t);
1075 void calculate_moving_average_of_slave_delta(int dir, nframes_t this_delta);
1076 void track_slave_state(
1078 nframes_t slave_transport_frame,
1079 nframes_t this_delta,
1081 void follow_slave_silently(nframes_t nframes, nframes_t offset, float slave_speed);
1083 void set_slave_source (SlaveSource);
1085 SlaveSource post_export_slave;
1086 nframes_t post_export_position;
1089 bool _exporting_realtime;
1091 boost::shared_ptr<ExportHandler> export_handler;
1092 boost::shared_ptr<ExportStatus> export_status;
1095 int stop_audio_export ();
1096 void finalize_audio_export ();
1098 sigc::connection export_freewheel_connection;
1100 void prepare_diskstreams ();
1101 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1102 int process_routes (nframes_t, nframes_t);
1103 int silent_process_routes (nframes_t, nframes_t);
1105 bool get_rec_monitors_input () {
1106 if (actively_recording()) {
1109 if (Config->get_auto_input()) {
1117 int get_transport_declick_required () {
1118 if (transport_sub_state & PendingDeclickIn) {
1119 transport_sub_state &= ~PendingDeclickIn;
1121 } else if (transport_sub_state & PendingDeclickOut) {
1128 bool maybe_stop (nframes_t limit) {
1129 if ( (_transport_speed > 0.0f && _transport_frame >= limit)
1130 || (_transport_speed < 0.0f && _transport_frame == 0) ) {
1137 bool maybe_sync_start (nframes_t&, nframes_t&);
1139 void check_declick_out ();
1141 MIDI::MachineControl* mmc;
1142 MIDI::Port* _mmc_port;
1143 MIDI::Port* _mtc_port;
1144 MIDI::Port* _midi_port;
1145 MIDI::Port* _midi_clock_port;
1148 bool session_send_mmc;
1149 bool session_send_mtc;
1150 bool session_midi_feedback;
1153 nframes_t last_loopend;
1155 boost::scoped_ptr<SessionDirectory> _session_dir;
1157 RingBuffer<Event*> pending_events;
1160 void when_engine_running ();
1161 void graph_reordered ();
1163 string _current_snapshot_name;
1165 XMLTree* state_tree;
1166 bool state_was_pending;
1167 StateOfTheState _state_of_the_state;
1170 int load_options (const XMLNode&);
1171 XMLNode& get_options () const;
1172 int load_state (string snapshot_name);
1173 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1175 nframes_t _last_roll_location;
1176 nframes_t _last_record_location;
1178 bool pending_locate_roll;
1179 nframes_t pending_locate_frame;
1180 bool pending_locate_flush;
1182 bool pending_auto_loop;
1184 Sample* butler_mixdown_buffer;
1185 float* butler_gain_buffer;
1186 pthread_t butler_thread;
1187 Glib::Mutex butler_request_lock;
1188 Glib::Cond butler_paused;
1189 bool butler_should_run;
1190 mutable gint butler_should_do_transport_work;
1191 int butler_request_pipe[2];
1193 inline bool transport_work_requested() const {
1194 return g_atomic_int_get(&butler_should_do_transport_work);
1197 struct ButlerRequest {
1206 enum PostTransportWork {
1207 PostTransportStop = 0x1,
1208 PostTransportDisableRecord = 0x2,
1209 PostTransportPosition = 0x8,
1210 PostTransportDidRecord = 0x20,
1211 PostTransportDuration = 0x40,
1212 PostTransportLocate = 0x80,
1213 PostTransportRoll = 0x200,
1214 PostTransportAbort = 0x800,
1215 PostTransportOverWrite = 0x1000,
1216 PostTransportSpeed = 0x2000,
1217 PostTransportAudition = 0x4000,
1218 PostTransportScrub = 0x8000,
1219 PostTransportReverse = 0x10000,
1220 PostTransportInputChange = 0x20000,
1221 PostTransportCurveRealloc = 0x40000
1224 static const PostTransportWork ProcessCannotProceedMask =
1226 PostTransportInputChange|
1228 PostTransportReverse|
1229 PostTransportCurveRealloc|
1231 PostTransportAudition|
1232 PostTransportLocate|
1235 PostTransportWork post_transport_work;
1237 void summon_butler ();
1238 void schedule_butler_transport_work ();
1239 int start_butler_thread ();
1240 void terminate_butler_thread ();
1241 static void *_butler_thread_work (void *arg);
1242 void* butler_thread_work ();
1244 uint32_t cumulative_rf_motion;
1247 void set_rf_speed (float speed);
1248 void reset_rf_scale (nframes_t frames_moved);
1250 Locations _locations;
1251 void locations_changed ();
1252 void locations_added (Location*);
1253 void handle_locations_changed (Locations::LocationList&);
1255 sigc::connection auto_punch_start_changed_connection;
1256 sigc::connection auto_punch_end_changed_connection;
1257 sigc::connection auto_punch_changed_connection;
1258 void auto_punch_start_changed (Location *);
1259 void auto_punch_end_changed (Location *);
1260 void auto_punch_changed (Location *);
1262 sigc::connection auto_loop_start_changed_connection;
1263 sigc::connection auto_loop_end_changed_connection;
1264 sigc::connection auto_loop_changed_connection;
1265 void auto_loop_changed (Location *);
1267 typedef list<Event *> Events;
1269 Events immediate_events;
1270 Events::iterator next_event;
1272 /* there can only ever be one of each of these */
1274 Event *auto_loop_event;
1275 Event *punch_out_event;
1276 Event *punch_in_event;
1280 void dump_events () const;
1281 void queue_event (Event *ev);
1282 void merge_event (Event*);
1283 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1284 bool _replace_event (Event*);
1285 bool _remove_event (Event *);
1286 void _clear_event_type (Event::Type);
1288 void first_stage_init (string path, string snapshot_name);
1289 int second_stage_init (bool new_tracks);
1290 void find_current_end ();
1291 void remove_empty_sounds ();
1293 void setup_midi_control ();
1294 int midi_read (MIDI::Port *);
1296 void enable_record ();
1298 void increment_transport_position (uint32_t val) {
1299 if (max_frames - val < _transport_frame) {
1300 _transport_frame = max_frames;
1302 _transport_frame += val;
1306 void decrement_transport_position (uint32_t val) {
1307 if (val < _transport_frame) {
1308 _transport_frame -= val;
1310 _transport_frame = 0;
1314 void post_transport_motion ();
1315 static void *session_loader_thread (void *arg);
1319 void set_next_event ();
1320 void process_event (Event *ev);
1322 /* MIDI Machine Control */
1324 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1326 void spp_start (MIDI::Parser&, nframes_t timestamp);
1327 void spp_continue (MIDI::Parser&, nframes_t timestamp);
1328 void spp_stop (MIDI::Parser&, nframes_t timestamp);
1330 void mmc_deferred_play (MIDI::MachineControl &);
1331 void mmc_stop (MIDI::MachineControl &);
1332 void mmc_step (MIDI::MachineControl &, int);
1333 void mmc_pause (MIDI::MachineControl &);
1334 void mmc_record_pause (MIDI::MachineControl &);
1335 void mmc_record_strobe (MIDI::MachineControl &);
1336 void mmc_record_exit (MIDI::MachineControl &);
1337 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1338 void mmc_fast_forward (MIDI::MachineControl &);
1339 void mmc_rewind (MIDI::MachineControl &);
1340 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1341 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1342 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1344 struct timeval last_mmc_step;
1347 typedef sigc::slot<bool> MidiTimeoutCallback;
1348 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1350 MidiTimeoutList midi_timeouts;
1351 bool mmc_step_timeout ();
1353 MIDI::byte mmc_buffer[32];
1354 MIDI::byte mtc_msg[16];
1355 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1356 MIDI::byte midi_msg[16];
1357 nframes_t outbound_mtc_smpte_frame;
1358 SMPTE::Time transmitting_smpte_time;
1359 int next_quarter_frame_to_send;
1361 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1362 nframes_t _frames_per_hour;
1363 nframes_t _smpte_frames_per_hour;
1364 nframes_t _smpte_offset;
1365 bool _smpte_offset_negative;
1367 /* cache the most-recently requested time conversions. This helps when we
1368 * have multiple clocks showing the same time (e.g. the transport frame) */
1369 bool last_smpte_valid;
1370 nframes_t last_smpte_when;
1371 SMPTE::Time last_smpte;
1373 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1375 int send_full_time_code(nframes_t nframes);
1376 int send_midi_time_code_for_cycle(nframes_t nframes);
1378 nframes_t adjust_apparent_position (nframes_t frames);
1380 void reset_record_status ();
1382 int no_roll (nframes_t nframes, nframes_t offset);
1384 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1385 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1387 struct MIDIRequest {
1395 Glib::Mutex midi_lock;
1396 pthread_t midi_thread;
1397 int midi_request_pipe[2];
1398 RingBuffer<MIDIRequest*> midi_requests;
1400 int start_midi_thread ();
1401 void terminate_midi_thread ();
1402 void poke_midi_thread ();
1403 static void *_midi_thread_work (void *arg);
1404 void midi_thread_work ();
1405 void change_midi_ports ();
1406 int use_config_midi_ports ();
1408 void set_play_loop (bool yn);
1409 void overwrite_some_buffers (Diskstream*);
1410 void flush_all_inserts ();
1411 int micro_locate (nframes_t distance);
1412 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1413 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1414 void force_locate (nframes_t frame, bool with_roll = false);
1415 void set_diskstream_speed (Diskstream*, double speed);
1416 void set_transport_speed (double speed, bool abort = false);
1417 void stop_transport (bool abort = false);
1418 void start_transport ();
1419 void realtime_stop (bool abort);
1420 void non_realtime_start_scrub ();
1421 void non_realtime_set_speed ();
1422 void non_realtime_locate ();
1423 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1424 void non_realtime_overwrite (int entry_request_count, bool& finished);
1425 void butler_transport_work ();
1426 void post_transport ();
1427 void engine_halted ();
1428 void xrun_recovery ();
1430 TempoMap *_tempo_map;
1431 void tempo_map_changed (Change);
1433 /* edit/mix groups */
1435 int load_route_groups (const XMLNode&, bool is_edit);
1436 int load_edit_groups (const XMLNode&);
1437 int load_mix_groups (const XMLNode&);
1440 list<RouteGroup *> edit_groups;
1441 list<RouteGroup *> mix_groups;
1445 SerializedRCUManager<DiskstreamList> diskstreams;
1447 uint32_t audio_dstream_buffer_size;
1448 uint32_t midi_dstream_buffer_size;
1449 int load_diskstreams (const XMLNode&);
1453 SerializedRCUManager<RouteList> routes;
1455 void add_routes (RouteList&, bool save);
1456 uint32_t destructive_index;
1458 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1462 bool solo_update_disabled;
1463 bool currently_soloing;
1465 void route_mute_changed (void *src);
1466 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1467 void catch_up_on_solo ();
1468 void catch_up_on_solo_mute_override ();
1469 void update_route_solo_state ();
1470 void modify_solo_mute (bool, bool);
1471 void strip_portname_for_solo (string& portname);
1473 /* REGION MANAGEMENT */
1475 std::map<std::string,uint32_t> region_name_map;
1476 void update_region_name_map (boost::shared_ptr<Region>);
1478 mutable Glib::Mutex region_lock;
1479 typedef map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1482 void add_region (boost::shared_ptr<Region>);
1483 void region_changed (Change, boost::weak_ptr<Region>);
1484 void remove_region (boost::weak_ptr<Region>);
1486 int load_regions (const XMLNode& node);
1490 mutable Glib::Mutex source_lock;
1491 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1496 SourceMap get_sources() { return sources; }
1499 int load_sources (const XMLNode& node);
1500 XMLNode& get_sources_as_xml ();
1502 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1506 mutable Glib::Mutex playlist_lock;
1507 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1508 PlaylistList playlists;
1509 PlaylistList unused_playlists;
1511 int load_playlists (const XMLNode&);
1512 int load_unused_playlists (const XMLNode&);
1513 void remove_playlist (boost::weak_ptr<Playlist>);
1514 void track_playlist (bool, boost::weak_ptr<Playlist>);
1516 boost::shared_ptr<Playlist> playlist_factory (string name);
1517 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1519 void playlist_length_changed ();
1520 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1522 /* NAMED SELECTIONS */
1524 mutable Glib::Mutex named_selection_lock;
1525 typedef set<NamedSelection *> NamedSelectionList;
1526 NamedSelectionList named_selections;
1528 int load_named_selections (const XMLNode&);
1530 NamedSelection *named_selection_factory (string name);
1531 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1533 /* CURVES and AUTOMATION LISTS */
1534 std::map<PBD::ID, AutomationList*> automation_lists;
1536 /* DEFAULT FADE CURVES */
1538 float default_fade_steepness;
1539 float default_fade_msecs;
1543 boost::shared_ptr<Auditioner> auditioner;
1544 void set_audition (boost::shared_ptr<Region>);
1545 void non_realtime_set_audition ();
1546 boost::shared_ptr<Region> pending_audition_region;
1552 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1554 /* INSERT AND SEND MANAGEMENT */
1556 list<PortInsert *> _port_inserts;
1557 list<PluginInsert *> _plugin_inserts;
1558 list<Send *> _sends;
1559 boost::dynamic_bitset<uint32_t> send_bitset;
1560 boost::dynamic_bitset<uint32_t> insert_bitset;
1562 uint32_t insert_cnt;
1565 void add_processor (Processor *);
1566 void remove_processor (Processor *);
1570 struct space_and_path {
1571 uint32_t blocks; /* 4kB blocks */
1579 struct space_and_path_ascending_cmp {
1580 bool operator() (space_and_path a, space_and_path b) {
1581 return a.blocks > b.blocks;
1585 void setup_raid_path (string path);
1587 vector<space_and_path> session_dirs;
1588 vector<space_and_path>::iterator last_rr_session_dir;
1589 uint32_t _total_free_4k_blocks;
1590 Glib::Mutex space_lock;
1592 string get_best_session_directory_for_new_source ();
1593 void refresh_disk_space ();
1595 mutable gint _playback_load;
1596 mutable gint _capture_load;
1597 mutable gint _playback_load_min;
1598 mutable gint _capture_load_min;
1602 SerializedRCUManager<BundleList> _bundles;
1603 XMLNode* _bundle_xml_node;
1604 int load_bundles (XMLNode const &);
1606 void reverse_diskstream_buffers ();
1608 UndoHistory _history;
1609 UndoTransaction* current_trans;
1611 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1612 GlobalRouteMeterState get_global_route_metering ();
1614 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1615 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1617 void set_global_mute (GlobalRouteBooleanState s, void *src);
1618 void set_global_solo (GlobalRouteBooleanState s, void *src);
1619 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1621 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1622 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1623 void reset_jack_connection (jack_client_t* jack);
1624 void record_enable_change_all (bool yn);
1626 XMLNode& state(bool);
1636 Click (nframes_t s, nframes_t d, const Sample *b)
1637 : start (s), duration (d), data (b) { offset = 0; }
1639 void *operator new(size_t ignored) {
1640 return pool.alloc ();
1643 void operator delete(void *ptr, size_t size) {
1651 typedef list<Click*> Clicks;
1655 boost::shared_ptr<IO> _click_io;
1657 Sample* click_emphasis_data;
1658 nframes_t click_length;
1659 nframes_t click_emphasis_length;
1660 mutable Glib::RWLock click_lock;
1662 static const Sample default_click[];
1663 static const nframes_t default_click_length;
1664 static const Sample default_click_emphasis[];
1665 static const nframes_t default_click_emphasis_length;
1668 void setup_click_sounds (int which);
1669 void clear_clicks ();
1670 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1672 vector<Route*> master_outs;
1674 /* range playback */
1676 list<AudioRange> current_audio_range;
1678 void set_play_range (bool yn);
1679 void setup_auto_play ();
1684 boost::shared_ptr<IO> _master_out;
1685 boost::shared_ptr<IO> _control_out;
1687 gain_t* _gain_automation_buffer;
1688 pan_t** _pan_automation_buffer;
1689 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1690 uint32_t _npan_buffers;
1694 long _vst_callback (VSTPlugin*,
1701 /* number of hardware ports we're using,
1702 based on max (requested,available)
1705 uint32_t n_physical_outputs;
1706 uint32_t n_physical_inputs;
1708 uint32_t n_physical_audio_outputs;
1709 uint32_t n_physical_audio_inputs;
1711 uint32_t n_physical_midi_outputs;
1712 uint32_t n_physical_midi_inputs;
1714 int find_all_sources (std::string path, std::set<std::string>& result);
1715 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1717 LayerModel layer_model;
1718 CrossfadeModel xfade_model;
1720 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1721 Glib::Mutex controllables_lock;
1722 Controllables controllables;
1724 void reset_native_file_format();
1725 bool first_file_data_format_reset;
1726 bool first_file_header_format_reset;
1728 void config_changed (const char*);
1730 XMLNode& get_control_protocol_state ();
1732 void set_history_depth (uint32_t depth);
1733 void sync_order_keys ();
1735 static bool _disable_all_loaded_plugins;
1737 SessionMetadata * _metadata;
1739 mutable bool have_looped; ///< Used in ::audible_frame(*)
1742 } // namespace ARDOUR
1744 #endif /* __ardour_session_h__ */