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&);
284 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path);
286 void process (nframes_t nframes);
288 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
289 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
290 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
292 void add_diskstream (boost::shared_ptr<Diskstream>);
293 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
294 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
296 bool have_captured() const { return _have_captured; }
298 void refill_all_diskstream_buffers ();
299 uint32_t audio_diskstream_buffer_size() const { return audio_dstream_buffer_size; }
300 uint32_t midi_diskstream_buffer_size() const { return midi_dstream_buffer_size; }
302 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
303 uint32_t n_diskstreams() const;
305 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
307 int load_routes (const XMLNode&);
308 boost::shared_ptr<RouteList> get_routes() const {
309 return routes.reader ();
312 uint32_t nroutes() const { return routes.reader()->size(); }
313 uint32_t ntracks () const;
314 uint32_t nbusses () const;
316 boost::shared_ptr<BundleList> bundles () {
317 return _bundles.reader ();
320 struct RoutePublicOrderSorter {
321 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
324 void sync_order_keys (const char* base);
326 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
327 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
328 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
330 boost::shared_ptr<Route> route_by_name (string);
331 boost::shared_ptr<Route> route_by_id (PBD::ID);
332 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
334 bool route_name_unique (string) const;
336 bool get_record_enabled() const {
337 return (record_status () >= Enabled);
340 RecordState record_status() const {
341 return (RecordState) g_atomic_int_get (&_record_status);
344 bool actively_recording () {
345 return record_status() == Recording;
348 bool record_enabling_legal () const;
349 void maybe_enable_record ();
350 void disable_record (bool rt_context, bool force = false);
351 void step_back_from_record ();
353 void maybe_write_autosave ();
355 /* Proxy signal for region hidden changes */
357 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
359 /* Emitted when all i/o connections are complete */
361 sigc::signal<void> IOConnectionsComplete;
363 /* Record status signals */
365 sigc::signal<void> RecordStateChanged;
367 /* Transport mechanism signals */
369 sigc::signal<void> TransportStateChange; /* generic */
370 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
371 sigc::signal<void> DurationChanged;
372 sigc::signal<void,nframes_t> Xrun;
373 sigc::signal<void> TransportLooped;
375 /** emitted when a locate has occurred */
376 sigc::signal<void> Located;
378 sigc::signal<void,RouteList&> RouteAdded;
380 void request_roll_at_and_return (nframes_t start, nframes_t return_to);
381 void request_bounded_roll (nframes_t start, nframes_t end);
382 void request_stop (bool abort = false);
383 void request_locate (nframes_t frame, bool with_roll = false);
385 void request_play_loop (bool yn);
386 bool get_play_loop () const { return play_loop; }
388 nframes_t last_transport_start() const { return _last_roll_location; }
389 void goto_end () { request_locate (end_location->start(), false);}
390 void goto_start () { request_locate (start_location->start(), false); }
391 void set_session_start (nframes_t start) { start_location->set_start(start); }
392 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
393 void use_rf_shuttle_speed ();
394 void allow_auto_play (bool yn);
395 void request_transport_speed (double speed);
396 void request_overwrite_buffer (Diskstream*);
397 void request_diskstream_speed (Diskstream&, double speed);
398 void request_input_change_handling ();
400 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
401 bool transport_locked () const;
405 int remove_region_from_region_list (boost::shared_ptr<Region>);
407 nframes_t get_maximum_extent () const;
408 nframes_t current_end_frame() const { return end_location->start(); }
409 nframes_t current_start_frame() const { return start_location->start(); }
410 /// "actual" sample rate of session, set by current audioengine rate, pullup/down etc.
411 nframes_t frame_rate() const { return _current_frame_rate; }
412 /// "native" sample rate of session, regardless of current audioengine rate, pullup/down etc
413 nframes_t nominal_frame_rate() const { return _nominal_frame_rate; }
414 nframes_t frames_per_hour() const { return _frames_per_hour; }
416 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
417 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
419 MIDI::byte get_mtc_smpte_bits() const {
420 return mtc_smpte_bits; /* encoding of SMTPE type for MTC */
423 float smpte_frames_per_second() const;
424 bool smpte_drop_frames() const;
428 Locations *locations() { return &_locations; }
430 sigc::signal<void,Location*> auto_loop_location_changed;
431 sigc::signal<void,Location*> auto_punch_location_changed;
432 sigc::signal<void> locations_modified;
434 void set_auto_punch_location (Location *);
435 void set_auto_loop_location (Location *);
436 int location_name(string& result, string base = string(""));
438 void reset_input_monitor_state ();
440 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
441 void remove_event (nframes_t frame, Event::Type type);
442 void clear_events (Event::Type type);
444 nframes_t get_block_size() const { return current_block_size; }
445 nframes_t worst_output_latency () const { return _worst_output_latency; }
446 nframes_t worst_input_latency () const { return _worst_input_latency; }
447 nframes_t worst_track_latency () const { return _worst_track_latency; }
449 int save_state (std::string snapshot_name, bool pending = false);
450 int restore_state (std::string snapshot_name);
451 int save_template (std::string template_name);
452 int save_history (std::string snapshot_name = "");
453 int restore_history (std::string snapshot_name);
454 void remove_state (std::string snapshot_name);
455 void rename_state (std::string old_name, std::string new_name);
456 void remove_pending_capture_state ();
458 static int rename_template (std::string old_name, std::string new_name);
459 static int delete_template (std::string name);
461 sigc::signal<void,string> StateSaved;
462 sigc::signal<void> StateReady;
464 vector<string*>* possible_states() const;
465 static vector<string*>* possible_states(string path);
467 XMLNode& get_state();
468 int set_state(const XMLNode& node); // not idempotent
469 XMLNode& get_template();
471 /// The instant xml file is written to the session directory
472 void add_instant_xml (XMLNode&, bool write_to_config = true);
473 XMLNode* instant_xml (const std::string& str);
475 enum StateOfTheState {
480 InitialConnecting = 0x8,
485 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
487 RouteGroup* add_edit_group (string);
488 RouteGroup* add_mix_group (string);
490 void remove_edit_group (RouteGroup&);
491 void remove_mix_group (RouteGroup&);
493 RouteGroup *mix_group_by_name (string);
494 RouteGroup *edit_group_by_name (string);
496 sigc::signal<void,RouteGroup*> edit_group_added;
497 sigc::signal<void,RouteGroup*> mix_group_added;
498 sigc::signal<void> edit_group_removed;
499 sigc::signal<void> mix_group_removed;
501 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
502 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
507 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
508 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
513 /* fundamental operations. duh. */
515 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
516 int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
518 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
520 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
521 TrackMode mode = Normal, uint32_t how_many = 1);
523 void remove_route (boost::shared_ptr<Route>);
524 void resort_routes ();
525 void resort_routes_using (boost::shared_ptr<RouteList>);
527 void set_remote_control_ids();
529 AudioEngine & engine() { return _engine; }
530 AudioEngine const & engine () const { return _engine; }
537 nframes_t transport_frame () const {return _transport_frame; }
538 nframes_t audible_frame () const;
539 nframes64_t requested_return_frame() const { return _requested_return_frame; }
553 int set_smpte_format (SmpteFormat);
554 void sync_time_vars();
556 void bbt_time (nframes_t when, BBT_Time&);
557 void smpte_to_sample(SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes) const;
558 void sample_to_smpte(nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes) const;
559 void smpte_time (SMPTE::Time &);
560 void smpte_time (nframes_t when, SMPTE::Time&);
561 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
563 void smpte_duration (nframes_t, SMPTE::Time&) const;
564 void smpte_duration_string (char *, nframes_t) const;
566 void set_smpte_offset (nframes_t);
567 nframes_t smpte_offset () const { return _smpte_offset; }
568 void set_smpte_offset_negative (bool);
569 bool smpte_offset_negative () const { return _smpte_offset_negative; }
571 nframes_t convert_to_frames_at (nframes_t position, AnyTime const &);
573 static sigc::signal<void> StartTimeChanged;
574 static sigc::signal<void> EndTimeChanged;
575 static sigc::signal<void> SMPTEOffsetChanged;
577 void request_slave_source (SlaveSource);
578 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
580 double transport_speed() const { return _transport_speed; }
581 bool transport_stopped() const { return _transport_speed == 0.0f; }
582 bool transport_rolling() const { return _transport_speed != 0.0f; }
584 void set_silent (bool yn);
585 bool silent () { return _silent; }
587 int jack_slave_sync (nframes_t);
589 TempoMap& tempo_map() { return *_tempo_map; }
591 /// signals the current transport position in frames, bbt and smpte time (in that order)
592 sigc::signal<void, const nframes_t&, const BBT_Time&, const SMPTE::Time&> tick;
596 void add_regions (std::vector<boost::shared_ptr<Region> >&);
598 sigc::signal<void,boost::weak_ptr<Region> > RegionAdded;
599 sigc::signal<void,std::vector<boost::weak_ptr<Region> >& > RegionsAdded;
600 sigc::signal<void,boost::weak_ptr<Region> > RegionRemoved;
602 int region_name (string& result, string base = string(""), bool newlevel = false);
603 string new_region_name (string);
604 string path_from_region_name (DataType type, string name, string identifier);
606 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>);
608 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
610 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
611 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
612 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
614 template<class T> void foreach_region (T *obj, void (T::*func)(boost::shared_ptr<Region>));
616 /* source management */
618 struct ImportStatus : public InterThreadInfo {
624 volatile bool freeze;
625 std::vector<Glib::ustring> paths;
626 bool replace_existing_source;
632 void import_audiofiles (ImportStatus&);
633 bool sample_rate_convert (ImportStatus&, string infile, string& outfile);
634 string build_tmp_convert_name (string file);
636 boost::shared_ptr<ExportHandler> get_export_handler ();
637 boost::shared_ptr<ExportStatus> get_export_status ();
639 int start_audio_export (nframes_t position, bool realtime);
641 sigc::signal<int, nframes_t> ProcessExport;
642 sigc::signal<void> ExportReadFinished;
643 static sigc::signal<void, std::string, std::string> Exported;
645 void add_source (boost::shared_ptr<Source>);
646 void remove_source (boost::weak_ptr<Source>);
648 struct cleanup_report {
649 vector<string> paths;
653 int cleanup_sources (cleanup_report&);
654 int cleanup_trash_sources (cleanup_report&);
656 int destroy_region (boost::shared_ptr<Region>);
657 int destroy_regions (std::list<boost::shared_ptr<Region> >);
659 int remove_last_capture ();
661 /** handlers should return -1 for "stop cleanup",
662 0 for "yes, delete this playlist",
663 1 for "no, don't delete this playlist".
665 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
667 /** handlers should return 0 for "ignore the rate mismatch",
668 !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 ignore it.
674 static sigc::signal<int> AskAboutPendingState;
676 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
678 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
680 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
681 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
683 /* playlist management */
685 boost::shared_ptr<Playlist> playlist_by_name (string name);
686 void unassigned_playlists (std::list<boost::shared_ptr<Playlist> > & list);
687 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
688 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
689 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
691 uint32_t n_playlists() const;
693 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
694 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
696 /* named selections */
698 NamedSelection* named_selection_by_name (string name);
699 void add_named_selection (NamedSelection *);
700 void remove_named_selection (NamedSelection *);
702 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
703 sigc::signal<void> NamedSelectionAdded;
704 sigc::signal<void> NamedSelectionRemoved;
706 /* Curves and AutomationLists (TODO when they go away) */
707 void add_automation_list(AutomationList*);
711 float get_default_fade_length () const { return default_fade_msecs; }
712 float get_default_fade_steepness () const { return default_fade_steepness; }
713 void set_default_fade (float steepness, float msecs);
717 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
718 void audition_playlist ();
719 void audition_region (boost::shared_ptr<Region>);
720 void cancel_audition ();
721 bool is_auditioning () const;
723 sigc::signal<void,bool> AuditionActive;
725 /* flattening stuff */
727 boost::shared_ptr<Region> write_one_track (AudioTrack&, nframes_t start, nframes_t end,
728 bool overwrite, vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot);
729 int freeze (InterThreadInfo&);
731 /* session-wide solo/mute/rec-enable */
733 bool soloing() const { return currently_soloing; }
735 void set_all_solo (bool);
736 void set_all_mute (bool);
738 sigc::signal<void,bool> SoloActive;
739 sigc::signal<void> SoloChanged;
741 void record_disenable_all ();
742 void record_enable_all ();
744 /* control/master out */
746 boost::shared_ptr<IO> control_out() const { return _control_out; }
747 boost::shared_ptr<IO> master_out() const { return _master_out; }
749 /* insert/send management */
751 uint32_t n_port_inserts() const { return _port_inserts.size(); }
752 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
753 uint32_t n_sends() const { return _sends.size(); }
755 static void set_disable_all_loaded_plugins (bool yn) {
756 _disable_all_loaded_plugins = yn;
758 static bool get_disable_all_loaded_plugins() {
759 return _disable_all_loaded_plugins;
762 uint32_t next_send_id();
763 uint32_t next_insert_id();
764 void mark_send_id (uint32_t);
765 void mark_insert_id (uint32_t);
767 /* s/w "RAID" management */
769 nframes_t available_capture_duration();
773 void add_bundle (boost::shared_ptr<Bundle>);
774 void remove_bundle (boost::shared_ptr<Bundle>);
775 boost::shared_ptr<Bundle> bundle_by_name (string) const;
777 sigc::signal<void,boost::shared_ptr<Bundle> > BundleAdded;
778 sigc::signal<void,boost::shared_ptr<Bundle> > BundleRemoved;
782 void midi_panic(void);
783 int set_mtc_port (string port_tag);
784 int set_mmc_port (string port_tag);
785 int set_midi_port (string port_tag);
786 int set_midi_clock_port (string port_tag);
787 MIDI::Port *mtc_port() const { return _mtc_port; }
788 MIDI::Port *mmc_port() const { return _mmc_port; }
789 MIDI::Port *midi_port() const { return _midi_port; }
790 MIDI::Port *midi_clock_port() const { return _midi_clock_port; }
792 sigc::signal<void> MTC_PortChanged;
793 sigc::signal<void> MMC_PortChanged;
794 sigc::signal<void> MIDI_PortChanged;
795 sigc::signal<void> MIDIClock_PortChanged;
797 void set_trace_midi_input (bool, MIDI::Port* port = 0);
798 void set_trace_midi_output (bool, MIDI::Port* port = 0);
800 bool get_trace_midi_input(MIDI::Port *port = 0);
801 bool get_trace_midi_output(MIDI::Port *port = 0);
803 void set_mmc_receive_device_id (uint32_t id);
804 void set_mmc_send_device_id (uint32_t id);
808 void start_scrub (nframes_t where);
810 void set_scrub_speed (float);
811 nframes_t scrub_buffer_size() const;
812 sigc::signal<void> ScrubReady;
814 /* History (for editors, mixers, UIs etc.) */
816 /** Undo some transactions.
817 * @param n Number of transactions to undo.
819 void undo (uint32_t n) {
823 void redo (uint32_t n) {
827 UndoHistory& history() { return _history; }
829 uint32_t undo_depth() const { return _history.undo_depth(); }
830 uint32_t redo_depth() const { return _history.redo_depth(); }
831 string next_undo() const { return _history.next_undo(); }
832 string next_redo() const { return _history.next_redo(); }
834 void begin_reversible_command (const string& cmd_name);
835 void commit_reversible_command (Command* cmd = 0);
837 void add_command (Command *const cmd) {
838 current_trans->add_command (cmd);
841 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
843 // these commands are implemented in libs/ardour/session_command.cc
844 Command* memento_command_factory(XMLNode* n);
845 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
847 Command* global_state_command_factory (const XMLNode& n);
849 class GlobalRouteStateCommand : public Command
852 GlobalRouteStateCommand (Session&, void*);
853 GlobalRouteStateCommand (Session&, const XMLNode& node);
854 int set_state (const XMLNode&);
855 XMLNode& get_state ();
858 GlobalRouteBooleanState before, after;
864 class GlobalSoloStateCommand : public GlobalRouteStateCommand
867 GlobalSoloStateCommand (Session &, void *src);
868 GlobalSoloStateCommand (Session&, const XMLNode&);
869 void operator()(); //redo
871 XMLNode &get_state();
875 class GlobalMuteStateCommand : public GlobalRouteStateCommand
878 GlobalMuteStateCommand(Session &, void *src);
879 GlobalMuteStateCommand (Session&, const XMLNode&);
880 void operator()(); // redo
882 XMLNode &get_state();
886 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
889 GlobalRecordEnableStateCommand(Session &, void *src);
890 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
891 void operator()(); // redo
893 XMLNode &get_state();
897 class GlobalMeteringStateCommand : public Command
900 GlobalMeteringStateCommand(Session &, void *src);
901 GlobalMeteringStateCommand (Session&, const XMLNode&);
904 XMLNode &get_state();
905 int set_state (const XMLNode&);
911 GlobalRouteMeterState before;
912 GlobalRouteMeterState after;
917 boost::shared_ptr<IO> click_io() { return _click_io; }
919 /* disk, buffer loads */
921 uint32_t playback_load ();
922 uint32_t capture_load ();
923 uint32_t playback_load_min ();
924 uint32_t capture_load_min ();
926 void reset_playback_load_min ();
927 void reset_capture_load_min ();
929 float read_data_rate () const; // in usec
930 float write_data_rate () const;
934 void set_audio_range (list<AudioRange>&);
935 void set_music_range (list<MusicRange>&);
937 void request_play_range (bool yn);
938 bool get_play_range () const { return _play_range; }
940 /* buffers for gain and pan */
942 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
943 pan_t** pan_automation_buffer () const { return _pan_automation_buffer; }
947 static long vst_callback (AEffect* effect,
954 static sigc::signal<void> SendFeedback;
958 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
960 void add_controllable (boost::shared_ptr<PBD::Controllable>);
961 void remove_controllable (PBD::Controllable*);
963 SessionMetadata & metadata () { return *_metadata; }
966 friend class AudioEngine;
967 void set_block_size (nframes_t nframes);
968 void set_frame_rate (nframes_t nframes);
971 friend class Diskstream;
973 void wait_till_butler_finished();
977 void schedule_curve_reallocation ();
978 void update_latency_compensation (bool, bool);
981 int create (bool& new_session, const string& mix_template, nframes_t initial_length);
984 nframes_t compute_initial_length ();
987 PendingDeclickIn = 0x1,
988 PendingDeclickOut = 0x2,
989 StopPendingCapture = 0x4,
990 AutoReturning = 0x10,
991 PendingLocate = 0x20,
992 PendingSetLoop = 0x40
995 /* stuff used in process() should be close together to
999 typedef void (Session::*process_function_type)(nframes_t);
1001 AudioEngine& _engine;
1002 mutable gint processing_prohibited;
1003 process_function_type process_function;
1004 process_function_type last_process_function;
1005 bool waiting_for_sync_offset;
1006 nframes_t _base_frame_rate;
1007 nframes_t _current_frame_rate; //this includes video pullup offset
1008 nframes_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1009 int transport_sub_state;
1010 mutable gint _record_status;
1011 volatile nframes_t _transport_frame;
1012 Location* end_location;
1013 Location* start_location;
1016 volatile double _transport_speed;
1017 double _last_transport_speed;
1018 // fixed point transport speed for varispeed playback
1020 // fixed point target transport speed for varispeed playback when tempo changes
1021 uint64_t target_phi;
1022 // fixed point phase for varispeed playback
1024 bool auto_play_legal;
1025 nframes_t _last_slave_transport_frame;
1026 nframes_t maximum_output_latency;
1027 volatile nframes64_t _requested_return_frame;
1028 BufferSet* _scratch_buffers;
1029 BufferSet* _silent_buffers;
1030 BufferSet* _mix_buffers;
1031 nframes_t current_block_size;
1032 nframes_t _worst_output_latency;
1033 nframes_t _worst_input_latency;
1034 nframes_t _worst_track_latency;
1035 bool _have_captured;
1037 float _meter_falloff;
1038 bool _end_location_is_free;
1040 void set_worst_io_latencies ();
1041 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1042 set_worst_io_latencies ();
1045 void update_latency_compensation_proxy (void* ignored);
1047 void ensure_buffers (ChanCount howmany);
1049 void process_scrub (nframes_t);
1050 void process_without_events (nframes_t);
1051 void process_with_events (nframes_t);
1052 void process_audition (nframes_t);
1053 void process_export (nframes_t);
1054 int process_export_fw (nframes_t);
1056 /* slave tracking */
1058 static const int delta_accumulator_size = 25;
1059 int delta_accumulator_cnt;
1060 long delta_accumulator[delta_accumulator_size];
1061 long average_slave_delta;
1063 bool have_first_delta_accumulator;
1071 SlaveState slave_state;
1072 nframes_t slave_wait_end;
1074 void reset_slave_state ();
1075 bool follow_slave (nframes_t, nframes_t);
1076 void calculate_moving_average_of_slave_delta(int dir, nframes_t this_delta);
1077 void track_slave_state(
1079 nframes_t slave_transport_frame,
1080 nframes_t this_delta,
1082 void follow_slave_silently(nframes_t nframes, nframes_t offset, float slave_speed);
1084 void set_slave_source (SlaveSource);
1086 SlaveSource post_export_slave;
1087 nframes_t post_export_position;
1090 bool _exporting_realtime;
1092 boost::shared_ptr<ExportHandler> export_handler;
1093 boost::shared_ptr<ExportStatus> export_status;
1096 int stop_audio_export ();
1097 void finalize_audio_export ();
1099 sigc::connection export_freewheel_connection;
1101 void prepare_diskstreams ();
1102 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1103 int process_routes (nframes_t, nframes_t);
1104 int silent_process_routes (nframes_t, nframes_t);
1106 bool get_rec_monitors_input () {
1107 if (actively_recording()) {
1110 if (Config->get_auto_input()) {
1118 int get_transport_declick_required () {
1119 if (transport_sub_state & PendingDeclickIn) {
1120 transport_sub_state &= ~PendingDeclickIn;
1122 } else if (transport_sub_state & PendingDeclickOut) {
1129 bool maybe_stop (nframes_t limit) {
1130 if ( (_transport_speed > 0.0f && _transport_frame >= limit)
1131 || (_transport_speed < 0.0f && _transport_frame == 0) ) {
1138 bool maybe_sync_start (nframes_t&, nframes_t&);
1140 void check_declick_out ();
1142 MIDI::MachineControl* mmc;
1143 MIDI::Port* _mmc_port;
1144 MIDI::Port* _mtc_port;
1145 MIDI::Port* _midi_port;
1146 MIDI::Port* _midi_clock_port;
1149 bool session_send_mmc;
1150 bool session_send_mtc;
1151 bool session_midi_feedback;
1154 nframes_t last_loopend;
1156 boost::scoped_ptr<SessionDirectory> _session_dir;
1158 RingBuffer<Event*> pending_events;
1161 void when_engine_running ();
1162 void graph_reordered ();
1164 string _current_snapshot_name;
1166 XMLTree* state_tree;
1167 bool state_was_pending;
1168 StateOfTheState _state_of_the_state;
1171 int load_options (const XMLNode&);
1172 XMLNode& get_options () const;
1173 int load_state (string snapshot_name);
1174 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1176 nframes_t _last_roll_location;
1177 nframes_t _last_record_location;
1179 bool pending_locate_roll;
1180 nframes_t pending_locate_frame;
1181 bool pending_locate_flush;
1183 bool pending_auto_loop;
1185 Sample* butler_mixdown_buffer;
1186 float* butler_gain_buffer;
1187 pthread_t butler_thread;
1188 Glib::Mutex butler_request_lock;
1189 Glib::Cond butler_paused;
1190 bool butler_should_run;
1191 mutable gint butler_should_do_transport_work;
1192 int butler_request_pipe[2];
1194 inline bool transport_work_requested() const {
1195 return g_atomic_int_get(&butler_should_do_transport_work);
1198 struct ButlerRequest {
1207 enum PostTransportWork {
1208 PostTransportStop = 0x1,
1209 PostTransportDisableRecord = 0x2,
1210 PostTransportPosition = 0x8,
1211 PostTransportDidRecord = 0x20,
1212 PostTransportDuration = 0x40,
1213 PostTransportLocate = 0x80,
1214 PostTransportRoll = 0x200,
1215 PostTransportAbort = 0x800,
1216 PostTransportOverWrite = 0x1000,
1217 PostTransportSpeed = 0x2000,
1218 PostTransportAudition = 0x4000,
1219 PostTransportScrub = 0x8000,
1220 PostTransportReverse = 0x10000,
1221 PostTransportInputChange = 0x20000,
1222 PostTransportCurveRealloc = 0x40000
1225 static const PostTransportWork ProcessCannotProceedMask =
1227 PostTransportInputChange|
1229 PostTransportReverse|
1230 PostTransportCurveRealloc|
1232 PostTransportAudition|
1233 PostTransportLocate|
1236 PostTransportWork post_transport_work;
1238 void summon_butler ();
1239 void schedule_butler_transport_work ();
1240 int start_butler_thread ();
1241 void terminate_butler_thread ();
1242 static void *_butler_thread_work (void *arg);
1243 void* butler_thread_work ();
1245 uint32_t cumulative_rf_motion;
1248 void set_rf_speed (float speed);
1249 void reset_rf_scale (nframes_t frames_moved);
1251 Locations _locations;
1252 void locations_changed ();
1253 void locations_added (Location*);
1254 void handle_locations_changed (Locations::LocationList&);
1256 sigc::connection auto_punch_start_changed_connection;
1257 sigc::connection auto_punch_end_changed_connection;
1258 sigc::connection auto_punch_changed_connection;
1259 void auto_punch_start_changed (Location *);
1260 void auto_punch_end_changed (Location *);
1261 void auto_punch_changed (Location *);
1263 sigc::connection auto_loop_start_changed_connection;
1264 sigc::connection auto_loop_end_changed_connection;
1265 sigc::connection auto_loop_changed_connection;
1266 void auto_loop_changed (Location *);
1268 typedef list<Event *> Events;
1270 Events immediate_events;
1271 Events::iterator next_event;
1273 /* there can only ever be one of each of these */
1275 Event *auto_loop_event;
1276 Event *punch_out_event;
1277 Event *punch_in_event;
1281 void dump_events () const;
1282 void queue_event (Event *ev);
1283 void merge_event (Event*);
1284 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1285 bool _replace_event (Event*);
1286 bool _remove_event (Event *);
1287 void _clear_event_type (Event::Type);
1289 void first_stage_init (string path, string snapshot_name);
1290 int second_stage_init (bool new_tracks);
1291 void find_current_end ();
1292 void remove_empty_sounds ();
1294 void setup_midi_control ();
1295 int midi_read (MIDI::Port *);
1297 void enable_record ();
1299 void increment_transport_position (uint32_t val) {
1300 if (max_frames - val < _transport_frame) {
1301 _transport_frame = max_frames;
1303 _transport_frame += val;
1307 void decrement_transport_position (uint32_t val) {
1308 if (val < _transport_frame) {
1309 _transport_frame -= val;
1311 _transport_frame = 0;
1315 void post_transport_motion ();
1316 static void *session_loader_thread (void *arg);
1320 void set_next_event ();
1321 void process_event (Event *ev);
1323 /* MIDI Machine Control */
1325 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1327 void spp_start (MIDI::Parser&, nframes_t timestamp);
1328 void spp_continue (MIDI::Parser&, nframes_t timestamp);
1329 void spp_stop (MIDI::Parser&, nframes_t timestamp);
1331 void mmc_deferred_play (MIDI::MachineControl &);
1332 void mmc_stop (MIDI::MachineControl &);
1333 void mmc_step (MIDI::MachineControl &, int);
1334 void mmc_pause (MIDI::MachineControl &);
1335 void mmc_record_pause (MIDI::MachineControl &);
1336 void mmc_record_strobe (MIDI::MachineControl &);
1337 void mmc_record_exit (MIDI::MachineControl &);
1338 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1339 void mmc_fast_forward (MIDI::MachineControl &);
1340 void mmc_rewind (MIDI::MachineControl &);
1341 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1342 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1343 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1345 struct timeval last_mmc_step;
1348 typedef sigc::slot<bool> MidiTimeoutCallback;
1349 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1351 MidiTimeoutList midi_timeouts;
1352 bool mmc_step_timeout ();
1354 MIDI::byte mmc_buffer[32];
1355 MIDI::byte mtc_msg[16];
1356 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1357 MIDI::byte midi_msg[16];
1358 nframes_t outbound_mtc_smpte_frame;
1359 SMPTE::Time transmitting_smpte_time;
1360 int next_quarter_frame_to_send;
1362 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1363 nframes_t _frames_per_hour;
1364 nframes_t _smpte_frames_per_hour;
1365 nframes_t _smpte_offset;
1366 bool _smpte_offset_negative;
1368 /* cache the most-recently requested time conversions. This helps when we
1369 * have multiple clocks showing the same time (e.g. the transport frame) */
1370 bool last_smpte_valid;
1371 nframes_t last_smpte_when;
1372 SMPTE::Time last_smpte;
1374 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1376 int send_full_time_code(nframes_t nframes);
1377 int send_midi_time_code_for_cycle(nframes_t nframes);
1379 nframes_t adjust_apparent_position (nframes_t frames);
1381 void reset_record_status ();
1383 int no_roll (nframes_t nframes, nframes_t offset);
1385 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1386 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1388 struct MIDIRequest {
1396 Glib::Mutex midi_lock;
1397 pthread_t midi_thread;
1398 int midi_request_pipe[2];
1399 RingBuffer<MIDIRequest*> midi_requests;
1401 int start_midi_thread ();
1402 void terminate_midi_thread ();
1403 void poke_midi_thread ();
1404 static void *_midi_thread_work (void *arg);
1405 void midi_thread_work ();
1406 void change_midi_ports ();
1407 int use_config_midi_ports ();
1409 void set_play_loop (bool yn);
1410 void overwrite_some_buffers (Diskstream*);
1411 void flush_all_inserts ();
1412 int micro_locate (nframes_t distance);
1413 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1414 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1415 void force_locate (nframes_t frame, bool with_roll = false);
1416 void set_diskstream_speed (Diskstream*, double speed);
1417 void set_transport_speed (double speed, bool abort = false);
1418 void stop_transport (bool abort = false);
1419 void start_transport ();
1420 void realtime_stop (bool abort);
1421 void non_realtime_start_scrub ();
1422 void non_realtime_set_speed ();
1423 void non_realtime_locate ();
1424 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1425 void non_realtime_overwrite (int entry_request_count, bool& finished);
1426 void butler_transport_work ();
1427 void post_transport ();
1428 void engine_halted ();
1429 void xrun_recovery ();
1431 TempoMap *_tempo_map;
1432 void tempo_map_changed (Change);
1434 /* edit/mix groups */
1436 int load_route_groups (const XMLNode&, bool is_edit);
1437 int load_edit_groups (const XMLNode&);
1438 int load_mix_groups (const XMLNode&);
1441 list<RouteGroup *> edit_groups;
1442 list<RouteGroup *> mix_groups;
1446 SerializedRCUManager<DiskstreamList> diskstreams;
1448 uint32_t audio_dstream_buffer_size;
1449 uint32_t midi_dstream_buffer_size;
1450 int load_diskstreams (const XMLNode&);
1454 SerializedRCUManager<RouteList> routes;
1456 void add_routes (RouteList&, bool save);
1457 uint32_t destructive_index;
1459 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1463 bool solo_update_disabled;
1464 bool currently_soloing;
1466 void route_mute_changed (void *src);
1467 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1468 void catch_up_on_solo ();
1469 void catch_up_on_solo_mute_override ();
1470 void update_route_solo_state ();
1471 void modify_solo_mute (bool, bool);
1472 void strip_portname_for_solo (string& portname);
1474 /* REGION MANAGEMENT */
1476 std::map<std::string,uint32_t> region_name_map;
1477 void update_region_name_map (boost::shared_ptr<Region>);
1479 mutable Glib::Mutex region_lock;
1480 typedef map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1483 void add_region (boost::shared_ptr<Region>);
1484 void region_changed (Change, boost::weak_ptr<Region>);
1485 void remove_region (boost::weak_ptr<Region>);
1487 int load_regions (const XMLNode& node);
1491 mutable Glib::Mutex source_lock;
1492 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1497 SourceMap get_sources() { return sources; }
1500 int load_sources (const XMLNode& node);
1501 XMLNode& get_sources_as_xml ();
1503 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1507 mutable Glib::Mutex playlist_lock;
1508 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1509 PlaylistList playlists;
1510 PlaylistList unused_playlists;
1512 int load_playlists (const XMLNode&);
1513 int load_unused_playlists (const XMLNode&);
1514 void remove_playlist (boost::weak_ptr<Playlist>);
1515 void track_playlist (bool, boost::weak_ptr<Playlist>);
1517 boost::shared_ptr<Playlist> playlist_factory (string name);
1518 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1520 void playlist_length_changed ();
1521 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1523 /* NAMED SELECTIONS */
1525 mutable Glib::Mutex named_selection_lock;
1526 typedef set<NamedSelection *> NamedSelectionList;
1527 NamedSelectionList named_selections;
1529 int load_named_selections (const XMLNode&);
1531 NamedSelection *named_selection_factory (string name);
1532 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1534 /* CURVES and AUTOMATION LISTS */
1535 std::map<PBD::ID, AutomationList*> automation_lists;
1537 /* DEFAULT FADE CURVES */
1539 float default_fade_steepness;
1540 float default_fade_msecs;
1544 boost::shared_ptr<Auditioner> auditioner;
1545 void set_audition (boost::shared_ptr<Region>);
1546 void non_realtime_set_audition ();
1547 boost::shared_ptr<Region> pending_audition_region;
1553 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1555 /* INSERT AND SEND MANAGEMENT */
1557 list<PortInsert *> _port_inserts;
1558 list<PluginInsert *> _plugin_inserts;
1559 list<Send *> _sends;
1560 boost::dynamic_bitset<uint32_t> send_bitset;
1561 boost::dynamic_bitset<uint32_t> insert_bitset;
1563 uint32_t insert_cnt;
1566 void add_processor (Processor *);
1567 void remove_processor (Processor *);
1571 struct space_and_path {
1572 uint32_t blocks; /* 4kB blocks */
1580 struct space_and_path_ascending_cmp {
1581 bool operator() (space_and_path a, space_and_path b) {
1582 return a.blocks > b.blocks;
1586 void setup_raid_path (string path);
1588 vector<space_and_path> session_dirs;
1589 vector<space_and_path>::iterator last_rr_session_dir;
1590 uint32_t _total_free_4k_blocks;
1591 Glib::Mutex space_lock;
1593 string get_best_session_directory_for_new_source ();
1594 void refresh_disk_space ();
1596 mutable gint _playback_load;
1597 mutable gint _capture_load;
1598 mutable gint _playback_load_min;
1599 mutable gint _capture_load_min;
1603 SerializedRCUManager<BundleList> _bundles;
1604 XMLNode* _bundle_xml_node;
1605 int load_bundles (XMLNode const &);
1607 void reverse_diskstream_buffers ();
1609 UndoHistory _history;
1610 UndoTransaction* current_trans;
1612 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1613 GlobalRouteMeterState get_global_route_metering ();
1615 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1616 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1618 void set_global_mute (GlobalRouteBooleanState s, void *src);
1619 void set_global_solo (GlobalRouteBooleanState s, void *src);
1620 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1622 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1623 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1624 void reset_jack_connection (jack_client_t* jack);
1625 void record_enable_change_all (bool yn);
1627 XMLNode& state(bool);
1637 Click (nframes_t s, nframes_t d, const Sample *b)
1638 : start (s), duration (d), data (b) { offset = 0; }
1640 void *operator new(size_t ignored) {
1641 return pool.alloc ();
1644 void operator delete(void *ptr, size_t size) {
1652 typedef list<Click*> Clicks;
1656 boost::shared_ptr<IO> _click_io;
1658 Sample* click_emphasis_data;
1659 nframes_t click_length;
1660 nframes_t click_emphasis_length;
1661 mutable Glib::RWLock click_lock;
1663 static const Sample default_click[];
1664 static const nframes_t default_click_length;
1665 static const Sample default_click_emphasis[];
1666 static const nframes_t default_click_emphasis_length;
1669 void setup_click_sounds (int which);
1670 void clear_clicks ();
1671 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1673 vector<Route*> master_outs;
1675 /* range playback */
1677 list<AudioRange> current_audio_range;
1679 void set_play_range (bool yn);
1680 void setup_auto_play ();
1685 boost::shared_ptr<IO> _master_out;
1686 boost::shared_ptr<IO> _control_out;
1688 gain_t* _gain_automation_buffer;
1689 pan_t** _pan_automation_buffer;
1690 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1691 uint32_t _npan_buffers;
1695 long _vst_callback (VSTPlugin*,
1702 /* number of hardware ports we're using,
1703 based on max (requested,available)
1706 uint32_t n_physical_outputs;
1707 uint32_t n_physical_inputs;
1709 uint32_t n_physical_audio_outputs;
1710 uint32_t n_physical_audio_inputs;
1712 uint32_t n_physical_midi_outputs;
1713 uint32_t n_physical_midi_inputs;
1715 int find_all_sources (std::string path, std::set<std::string>& result);
1716 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1718 LayerModel layer_model;
1719 CrossfadeModel xfade_model;
1721 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1722 Glib::Mutex controllables_lock;
1723 Controllables controllables;
1725 void reset_native_file_format();
1726 bool first_file_data_format_reset;
1727 bool first_file_header_format_reset;
1729 void config_changed (const char*);
1731 XMLNode& get_control_protocol_state ();
1733 void set_history_depth (uint32_t depth);
1734 void sync_order_keys ();
1736 static bool _disable_all_loaded_plugins;
1738 SessionMetadata * _metadata;
1740 mutable bool have_looped; ///< Used in ::audible_frame(*)
1743 } // namespace ARDOUR
1745 #endif /* __ardour_session_h__ */