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/weak_ptr.hpp>
32 #include <boost/dynamic_bitset.hpp>
38 #include <glibmm/thread.h>
40 #include <pbd/error.h>
44 #include <pbd/statefuldestructible.h>
46 #include <midi++/types.h>
47 #include <midi++/mmc.h>
49 #include <pbd/stateful.h>
50 #include <pbd/destructible.h>
52 #include <ardour/ardour.h>
53 #include <ardour/configuration.h>
54 #include <ardour/location.h>
55 #include <ardour/gain.h>
56 #include <ardour/io.h>
76 class AudioDiskstream;
81 class AudioFileSource;
96 class ControlProtocolInfo;
98 struct AudioExportSpecification;
106 class Session : public PBD::StatefulDestructible
110 typedef std::pair<boost::weak_ptr<Route>,bool> RouteBooleanState;
111 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
112 typedef std::pair<boost::weak_ptr<Route>,MeterPoint> RouteMeterState;
113 typedef vector<RouteMeterState> GlobalRouteMeterState;
137 InputConfigurationChange,
141 /* only one of each of these events
142 can be queued at any one time
158 nframes_t action_frame;
159 nframes_t target_frame;
165 nframes_t target2_frame;
169 boost::shared_ptr<Region> region;
171 list<AudioRange> audio_range;
172 list<MusicRange> music_range;
174 Event(Type t, Action a, nframes_t when, nframes_t where, float spd, bool yn = false)
178 target_frame (where),
182 void set_ptr (void* p) {
186 bool before (const Event& other) const {
187 return action_frame < other.action_frame;
190 bool after (const Event& other) const {
191 return action_frame > other.action_frame;
194 static bool compare (const Event *e1, const Event *e2) {
195 return e1->before (*e2);
198 void *operator new (size_t ignored) {
199 return pool.alloc ();
202 void operator delete(void *ptr, size_t size) {
206 static const nframes_t Immediate = 0;
209 static MultiAllocSingleReleasePool pool;
212 /* creating from an XML file */
214 Session (AudioEngine&,
215 const string& fullpath,
216 const string& snapshot_name,
217 string mix_template = "");
219 /* creating a new Session */
221 Session (AudioEngine&,
223 string snapshot_name,
224 AutoConnectOption input_auto_connect,
225 AutoConnectOption output_auto_connect,
226 uint32_t control_out_channels,
227 uint32_t master_out_channels,
228 uint32_t n_physical_in,
229 uint32_t n_physical_out,
230 nframes_t initial_length);
235 static int find_session (string str, string& path, string& snapshot, bool& isnew);
237 string path() const { return _path; }
238 string name() const { return _name; }
239 string snap_name() const { return _current_snapshot_name; }
240 string raid_path () const;
241 string export_dir () const;
243 void set_snap_name ();
247 bool dirty() const { return _state_of_the_state & Dirty; }
248 void set_deletion_in_progress ();
249 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
250 sigc::signal<void> DirtyChanged;
252 static sigc::signal<void> AutoBindingOn;
253 static sigc::signal<void> AutoBindingOff;
255 static sigc::signal<void,std::string> Dialog;
257 std::string sound_dir (bool with_path = true) const;
258 std::string peak_dir () const;
259 std::string dead_sound_dir () const;
260 std::string automation_dir () const;
261 std::string analysis_dir() const;
263 int ensure_subdirs ();
265 Glib::ustring peak_path (Glib::ustring) const;
267 static string suffixed_search_path (std::string suffix, bool data);
268 static string control_protocol_path ();
269 static string template_path ();
270 static string route_template_path ();
271 static string template_dir ();
272 static string route_template_dir ();
273 static void get_template_list (std::list<std::string>&);
275 struct RouteTemplateInfo {
280 static void get_route_templates (std::vector<RouteTemplateInfo>&);
282 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
283 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
285 void process (nframes_t nframes);
287 vector<Sample*>& get_passthru_buffers() { return _passthru_buffers; }
288 vector<Sample*>& get_silent_buffers (uint32_t howmany);
289 vector<Sample*>& get_send_buffers () { return _send_buffers; }
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 diskstream_buffer_size() const { return dstream_buffer_size; }
300 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
301 uint32_t n_diskstreams() const;
303 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
304 typedef std::list<boost::shared_ptr<Route> > RouteList;
306 boost::shared_ptr<RouteList> get_routes() const {
307 return routes.reader ();
310 uint32_t nroutes() const { return routes.reader()->size(); }
311 uint32_t ntracks () const;
312 uint32_t nbusses () const;
314 struct RoutePublicOrderSorter {
315 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
318 void sync_order_keys (const char* base);
320 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
321 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
322 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
324 boost::shared_ptr<Route> route_by_name (string);
325 boost::shared_ptr<Route> route_by_id (PBD::ID);
326 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
328 bool route_name_unique (string) const;
330 bool get_record_enabled() const {
331 return (record_status () >= Enabled);
334 RecordState record_status() const {
335 return (RecordState) g_atomic_int_get (&_record_status);
338 bool actively_recording () {
339 return record_status() == Recording;
342 bool record_enabling_legal () const;
343 void maybe_enable_record ();
344 void disable_record (bool rt_context, bool force = false);
345 void step_back_from_record ();
347 void maybe_write_autosave ();
349 /* Proxy signal for region hidden changes */
351 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
353 /* Emitted when all i/o connections are complete */
355 sigc::signal<void> IOConnectionsComplete;
357 /* Record status signals */
359 sigc::signal<void> RecordStateChanged;
361 /* Transport mechanism signals */
363 sigc::signal<void> TransportStateChange; /* generic */
364 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
365 sigc::signal<void> DurationChanged;
366 sigc::signal<void,nframes_t> Xrun;
367 sigc::signal<void> TransportLooped;
369 sigc::signal<void,RouteList&> RouteAdded;
371 void request_roll_at_and_return (nframes_t start, nframes_t return_to);
372 void request_bounded_roll (nframes_t start, nframes_t end);
373 void request_stop (bool abort = false);
374 void request_locate (nframes_t frame, bool with_roll = false);
376 void request_play_loop (bool yn);
377 bool get_play_loop () const { return play_loop; }
379 nframes_t last_transport_start() const { return _last_roll_location; }
380 void goto_end () { request_locate (end_location->start(), false);}
381 void goto_start () { request_locate (start_location->start(), false); }
382 void set_session_start (nframes_t start) { start_location->set_start(start); }
383 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
384 void use_rf_shuttle_speed ();
385 void allow_auto_play (bool yn);
386 void request_transport_speed (float speed);
387 void request_overwrite_buffer (Diskstream*);
388 void request_diskstream_speed (Diskstream&, float speed);
389 void request_input_change_handling ();
391 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
392 bool transport_locked () const;
396 int remove_region_from_region_list (boost::shared_ptr<Region>);
398 nframes_t get_maximum_extent () const;
399 nframes_t current_end_frame() const { return end_location->start(); }
400 nframes_t current_start_frame() const { return start_location->start(); }
401 // "actual" sample rate of session, set by current audioengine rate, pullup/down etc.
402 nframes_t frame_rate() const { return _current_frame_rate; }
403 // "native" sample rate of session, regardless of current audioengine rate, pullup/down etc
404 nframes_t nominal_frame_rate() const { return _nominal_frame_rate; }
405 nframes_t frames_per_hour() const { return _frames_per_hour; }
407 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
408 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
410 MIDI::byte get_mtc_smpte_bits() const {
411 return mtc_smpte_bits; /* encoding of SMTPE type for MTC */
414 float smpte_frames_per_second() const;
415 bool smpte_drop_frames() const;
419 Locations *locations() { return &_locations; }
421 sigc::signal<void,Location*> auto_loop_location_changed;
422 sigc::signal<void,Location*> auto_punch_location_changed;
423 sigc::signal<void> locations_modified;
425 void set_auto_punch_location (Location *);
426 void set_auto_loop_location (Location *);
427 int location_name(string& result, string base = string(""));
429 void reset_input_monitor_state ();
431 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
432 void remove_event (nframes_t frame, Event::Type type);
433 void clear_events (Event::Type type);
435 nframes_t get_block_size() const { return current_block_size; }
436 nframes_t worst_output_latency () const { return _worst_output_latency; }
437 nframes_t worst_input_latency () const { return _worst_input_latency; }
438 nframes_t worst_track_latency () const { return _worst_track_latency; }
440 int save_state (string snapshot_name, bool pending = false);
441 int restore_state (string snapshot_name);
442 int save_template (string template_name);
443 int save_history (string snapshot_name = "");
444 int restore_history (string snapshot_name);
445 void remove_state (string snapshot_name);
446 void rename_state (string old_name, string new_name);
447 void remove_pending_capture_state ();
449 static int rename_template (string old_name, string new_name);
450 static int delete_template (string name);
452 sigc::signal<void,string> StateSaved;
453 sigc::signal<void> StateReady;
455 vector<string*>* possible_states() const;
456 static vector<string*>* possible_states(string path);
458 XMLNode& get_state();
459 int set_state(const XMLNode& node); // not idempotent
460 XMLNode& get_template();
462 void add_instant_xml (XMLNode&, const std::string& dir);
464 enum StateOfTheState {
469 InitialConnecting = 0x8,
474 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
476 RouteGroup* add_edit_group (string);
477 RouteGroup* add_mix_group (string);
479 void remove_edit_group (RouteGroup&);
480 void remove_mix_group (RouteGroup&);
482 RouteGroup *mix_group_by_name (string);
483 RouteGroup *edit_group_by_name (string);
485 sigc::signal<void,RouteGroup*> edit_group_added;
486 sigc::signal<void,RouteGroup*> mix_group_added;
487 sigc::signal<void> edit_group_removed;
488 sigc::signal<void> mix_group_removed;
490 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
491 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
496 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
497 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
502 /* fundamental operations. duh. */
504 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
505 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
506 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path);
508 /* this is a hack put in to support work on video tracks by Robin Gareus. Nobody
509 should assume that this works yet (February 2009)
512 boost::shared_ptr<Route> new_video_track (string name);
514 void remove_route (boost::shared_ptr<Route>);
516 void resort_routes ();
517 void resort_routes_using (boost::shared_ptr<RouteList>);
519 void set_remote_control_ids();
521 AudioEngine &engine() { return _engine; };
528 nframes_t transport_frame () const {return _transport_frame; }
529 nframes_t audible_frame () const;
530 nframes64_t requested_return_frame() const { return _requested_return_frame; }
544 int set_smpte_format (SmpteFormat);
545 void sync_time_vars();
547 void bbt_time (nframes_t when, BBT_Time&);
548 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
549 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
550 void smpte_time (SMPTE::Time &);
551 void smpte_time (nframes_t when, SMPTE::Time&);
552 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
554 void smpte_duration (nframes_t, SMPTE::Time&) const;
555 void smpte_duration_string (char *, nframes_t) const;
557 void set_smpte_offset (nframes_t);
558 nframes_t smpte_offset () const { return _smpte_offset; }
559 void set_smpte_offset_negative (bool);
560 bool smpte_offset_negative () const { return _smpte_offset_negative; }
562 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
564 static sigc::signal<void> StartTimeChanged;
565 static sigc::signal<void> EndTimeChanged;
566 static sigc::signal<void> SMPTEOffsetChanged;
568 void request_slave_source (SlaveSource);
569 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
571 float transport_speed() const { return _transport_speed; }
572 bool transport_stopped() const { return _transport_speed == 0.0f; }
573 bool transport_rolling() const { return _transport_speed != 0.0f; }
575 void set_silent (bool yn);
576 bool silent () { return _silent; }
578 int jack_slave_sync (nframes_t);
580 TempoMap& tempo_map() { return *_tempo_map; }
584 void add_regions (std::vector<boost::shared_ptr<Region> >&);
586 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionAdded;
587 sigc::signal<void,std::vector<boost::weak_ptr<AudioRegion> >& > AudioRegionsAdded;
588 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionRemoved;
590 int region_name (string& result, string base = string(""), bool newlevel = false);
591 string new_region_name (string);
592 string path_from_region_name (string name, string identifier);
594 boost::shared_ptr<AudioRegion> find_whole_file_parent (boost::shared_ptr<AudioRegion const>);
595 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
597 boost::shared_ptr<AudioRegion> XMLRegionFactory (const XMLNode&, bool full);
599 template<class T> void foreach_audio_region (T *obj, void (T::*func)(boost::shared_ptr<AudioRegion>));
601 /* source management */
603 struct import_status : public InterThreadInfo {
609 volatile bool freeze;
610 std::vector<Glib::ustring> paths;
611 bool replace_existing_source;
617 void import_audiofiles (import_status&);
618 bool sample_rate_convert (import_status&, string infile, string& outfile);
619 string build_tmp_convert_name (string file);
621 SlaveSource post_export_slave;
622 nframes_t post_export_position;
625 int start_audio_export (ARDOUR::AudioExportSpecification&);
626 int stop_audio_export (ARDOUR::AudioExportSpecification&);
627 void finalize_audio_export ();
628 static sigc::signal<void, std::string, std::string> Exported;
630 void add_source (boost::shared_ptr<Source>);
631 void remove_source (boost::weak_ptr<Source>);
633 struct cleanup_report {
634 vector<string> paths;
638 int cleanup_sources (cleanup_report&);
639 int cleanup_trash_sources (cleanup_report&);
641 int destroy_region (boost::shared_ptr<Region>);
642 int destroy_regions (std::list<boost::shared_ptr<Region> >);
644 int remove_last_capture ();
646 /* handlers should return -1 for "stop cleanup", 0 for
647 "yes, delete this playlist" and 1 for "no, don't delete
651 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
653 /* handlers should return 0 for "ignore the rate mismatch"
654 and !0 for "do not use this session"
657 static sigc::signal<int,nframes_t, nframes_t> AskAboutSampleRateMismatch;
659 /* handlers should return !0 for use pending state, 0 for
663 static sigc::signal<int> AskAboutPendingState;
665 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
667 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
668 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
670 /* playlist management */
672 boost::shared_ptr<Playlist> playlist_by_name (string name);
673 void add_playlist (boost::shared_ptr<Playlist>);
674 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
675 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
677 uint32_t n_playlists() const;
679 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
680 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
682 /* named selections */
684 NamedSelection* named_selection_by_name (string name);
685 void add_named_selection (NamedSelection *);
686 void remove_named_selection (NamedSelection *);
688 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
689 sigc::signal<void> NamedSelectionAdded;
690 sigc::signal<void> NamedSelectionRemoved;
692 /* Curves and AutomationLists (TODO when they go away) */
693 void add_curve(Curve*);
694 void add_automation_list(AutomationList*);
698 float get_default_fade_length () const { return default_fade_msecs; }
699 float get_default_fade_steepness () const { return default_fade_steepness; }
700 void set_default_fade (float steepness, float msecs);
704 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
705 void audition_playlist ();
706 void audition_region (boost::shared_ptr<Region>);
707 void cancel_audition ();
708 bool is_auditioning () const;
710 sigc::signal<void,bool> AuditionActive;
712 /* flattening stuff */
714 boost::shared_ptr<Region> write_one_audio_track (AudioTrack&, nframes_t start, nframes_t end, bool overwrite, vector<boost::shared_ptr<AudioSource> >&, InterThreadInfo& wot, bool enable_processing = true);
715 int freeze (InterThreadInfo&);
717 /* session-wide solo/mute/rec-enable */
719 bool soloing() const { return currently_soloing; }
721 void set_all_solo (bool);
722 void set_all_mute (bool);
724 sigc::signal<void,bool> SoloActive;
725 sigc::signal<void> SoloChanged;
727 void record_disenable_all ();
728 void record_enable_all ();
730 /* control/master out */
732 boost::shared_ptr<IO> control_out() const { return _control_out; }
733 boost::shared_ptr<IO> master_out() const { return _master_out; }
735 /* insert/send management */
737 uint32_t n_port_inserts() const { return _port_inserts.size(); }
738 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
739 uint32_t n_sends() const { return _sends.size(); }
741 static void set_disable_all_loaded_plugins (bool yn) {
742 _disable_all_loaded_plugins = yn;
744 static bool get_disable_all_loaded_plugins() {
745 return _disable_all_loaded_plugins;
748 uint32_t next_send_id();
749 uint32_t next_insert_id();
750 void mark_send_id (uint32_t);
751 void mark_insert_id (uint32_t);
753 /* s/w "RAID" management */
755 nframes_t available_capture_duration();
757 /* I/O Connections */
759 template<class T> void foreach_connection (T *obj, void (T::*func)(Connection *));
760 void add_connection (Connection *);
761 void remove_connection (Connection *);
762 Connection *connection_by_name (string) const;
764 sigc::signal<void,Connection *> ConnectionAdded;
765 sigc::signal<void,Connection *> ConnectionRemoved;
769 int set_mtc_port (string port_tag);
770 int set_mmc_port (string port_tag);
771 int set_midi_port (string port_tag);
772 MIDI::Port *mtc_port() const { return _mtc_port; }
773 MIDI::Port *mmc_port() const { return _mmc_port; }
774 MIDI::Port *midi_port() const { return _midi_port; }
776 sigc::signal<void> MTC_PortChanged;
777 sigc::signal<void> MMC_PortChanged;
778 sigc::signal<void> MIDI_PortChanged;
780 void set_trace_midi_input (bool, MIDI::Port* port = 0);
781 void set_trace_midi_output (bool, MIDI::Port* port = 0);
783 bool get_trace_midi_input(MIDI::Port *port = 0);
784 bool get_trace_midi_output(MIDI::Port *port = 0);
786 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
788 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
790 void set_mmc_receive_device_id (uint32_t id);
791 void set_mmc_send_device_id (uint32_t id);
795 void start_scrub (nframes_t where);
797 void set_scrub_speed (float);
798 nframes_t scrub_buffer_size() const;
799 sigc::signal<void> ScrubReady;
801 /* History (for editors, mixers, UIs etc.) */
803 void undo (uint32_t n) {
807 void redo (uint32_t n) {
811 UndoHistory& history() { return _history; }
813 uint32_t undo_depth() const { return _history.undo_depth(); }
814 uint32_t redo_depth() const { return _history.redo_depth(); }
815 string next_undo() const { return _history.next_undo(); }
816 string next_redo() const { return _history.next_redo(); }
818 void begin_reversible_command (string cmd_name);
819 void commit_reversible_command (Command* cmd = 0);
821 void add_command (Command *const cmd) {
822 current_trans->add_command (cmd);
825 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
827 // these commands are implemented in libs/ardour/session_command.cc
828 Command* memento_command_factory(XMLNode* n);
829 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
831 Command* global_state_command_factory (const XMLNode& n);
833 class GlobalRouteStateCommand : public Command
836 GlobalRouteStateCommand (Session&, void*);
837 GlobalRouteStateCommand (Session&, const XMLNode& node);
838 int set_state (const XMLNode&);
839 XMLNode& get_state ();
842 GlobalRouteBooleanState before, after;
848 class GlobalSoloStateCommand : public GlobalRouteStateCommand
851 GlobalSoloStateCommand (Session &, void *src);
852 GlobalSoloStateCommand (Session&, const XMLNode&);
853 void operator()(); //redo
855 XMLNode &get_state();
859 class GlobalMuteStateCommand : public GlobalRouteStateCommand
862 GlobalMuteStateCommand(Session &, void *src);
863 GlobalMuteStateCommand (Session&, const XMLNode&);
864 void operator()(); // redo
866 XMLNode &get_state();
870 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
873 GlobalRecordEnableStateCommand(Session &, void *src);
874 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
875 void operator()(); // redo
877 XMLNode &get_state();
881 class GlobalMeteringStateCommand : public Command
884 GlobalMeteringStateCommand(Session &, void *src);
885 GlobalMeteringStateCommand (Session&, const XMLNode&);
888 XMLNode &get_state();
889 int set_state (const XMLNode&);
895 GlobalRouteMeterState before;
896 GlobalRouteMeterState after;
901 boost::shared_ptr<IO> click_io() { return _click_io; }
903 /* disk, buffer loads */
905 uint32_t playback_load ();
906 uint32_t capture_load ();
907 uint32_t playback_load_min ();
908 uint32_t capture_load_min ();
910 void reset_playback_load_min ();
911 void reset_capture_load_min ();
913 float read_data_rate () const; // in usec
914 float write_data_rate () const;
918 void set_audio_range (list<AudioRange>&);
919 void set_music_range (list<MusicRange>&);
921 void request_play_range (bool yn);
922 bool get_play_range () const { return _play_range; }
925 typedef vector<string> FavoriteDirs;
927 static int read_favorite_dirs (FavoriteDirs&);
929 static int write_favorite_dirs (FavoriteDirs&);
933 static const char* template_suffix() { return _template_suffix; }
934 static const char* statefile_suffix() { return _statefile_suffix; }
935 static const char* pending_suffix() { return _pending_suffix; }
937 /* buffers for gain and pan */
939 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
940 pan_t** pan_automation_buffer() const { return _pan_automation_buffer; }
942 /* buffers for conversion */
951 static long vst_callback (AEffect* effect,
958 typedef float (*compute_peak_t) (Sample *, nframes_t, float);
959 typedef void (*find_peaks_t) (Sample *, nframes_t, float *, float*);
960 typedef void (*apply_gain_to_buffer_t) (Sample *, nframes_t, float);
961 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, nframes_t, float);
962 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, nframes_t);
964 static compute_peak_t compute_peak;
965 static find_peaks_t find_peaks;
966 static apply_gain_to_buffer_t apply_gain_to_buffer;
967 static mix_buffers_with_gain_t mix_buffers_with_gain;
968 static mix_buffers_no_gain_t mix_buffers_no_gain;
970 static sigc::signal<void> SendFeedback;
974 PBD::Controllable* controllable_by_id (const PBD::ID&);
976 void add_controllable (PBD::Controllable*);
977 void remove_controllable (PBD::Controllable*);
980 friend class AudioEngine;
981 void set_block_size (nframes_t nframes);
982 void set_frame_rate (nframes_t nframes);
985 friend class Diskstream;
987 void wait_till_butler_finished();
991 void schedule_curve_reallocation ();
992 void update_latency_compensation (bool, bool);
995 int create (bool& new_session, const string& mix_template, nframes_t initial_length);
998 nframes_t compute_initial_length ();
1000 static const char* _template_suffix;
1001 static const char* _statefile_suffix;
1002 static const char* _pending_suffix;
1005 PendingDeclickIn = 0x1,
1006 PendingDeclickOut = 0x2,
1007 StopPendingCapture = 0x4,
1008 AutoReturning = 0x10,
1009 PendingLocate = 0x20,
1010 PendingSetLoop = 0x40
1013 /* stuff used in process() should be close together to
1017 typedef void (Session::*process_function_type)(nframes_t);
1019 AudioEngine& _engine;
1020 mutable gint processing_prohibited;
1021 process_function_type process_function;
1022 process_function_type last_process_function;
1023 bool waiting_for_sync_offset;
1024 nframes_t _base_frame_rate;
1025 nframes_t _current_frame_rate; //this includes video pullup offset
1026 nframes_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1027 int transport_sub_state;
1028 mutable gint _record_status;
1029 volatile nframes_t _transport_frame;
1030 Location* end_location;
1031 Location* start_location;
1034 volatile float _transport_speed;
1035 volatile float _desired_transport_speed;
1036 float _last_transport_speed;
1037 bool auto_play_legal;
1038 nframes_t _last_slave_transport_frame;
1039 nframes_t maximum_output_latency;
1040 nframes_t last_stop_frame;
1041 volatile nframes64_t _requested_return_frame;
1042 vector<Sample *> _passthru_buffers;
1043 vector<Sample *> _silent_buffers;
1044 vector<Sample *> _send_buffers;
1045 nframes_t current_block_size;
1046 nframes_t _worst_output_latency;
1047 nframes_t _worst_input_latency;
1048 nframes_t _worst_track_latency;
1049 bool _have_captured;
1051 float _meter_falloff;
1052 bool _end_location_is_free;
1054 void set_worst_io_latencies ();
1055 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1056 set_worst_io_latencies ();
1059 void update_latency_compensation_proxy (void* ignored);
1061 void ensure_passthru_buffers (uint32_t howmany);
1063 void process_scrub (nframes_t);
1064 void process_without_events (nframes_t);
1065 void process_with_events (nframes_t);
1066 void process_audition (nframes_t);
1067 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1069 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1070 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1071 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1073 /* slave tracking */
1075 static const int delta_accumulator_size = 25;
1076 int delta_accumulator_cnt;
1077 long delta_accumulator[delta_accumulator_size];
1078 long average_slave_delta;
1080 bool have_first_delta_accumulator;
1088 SlaveState slave_state;
1089 nframes_t slave_wait_end;
1091 void reset_slave_state ();
1092 bool follow_slave (nframes_t);
1093 void set_slave_source (SlaveSource);
1096 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1098 void prepare_diskstreams ();
1099 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1100 int process_routes (nframes_t);
1101 int silent_process_routes (nframes_t);
1103 bool get_rec_monitors_input () {
1104 if (actively_recording()) {
1107 if (Config->get_auto_input()) {
1115 int get_transport_declick_required () {
1117 if (transport_sub_state & PendingDeclickIn) {
1118 transport_sub_state &= ~PendingDeclickIn;
1120 } else if (transport_sub_state & PendingDeclickOut) {
1127 bool maybe_stop (nframes_t limit) {
1128 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1135 bool maybe_sync_start (nframes_t&);
1137 void check_declick_out ();
1139 MIDI::MachineControl* mmc;
1140 MIDI::Port* _mmc_port;
1141 MIDI::Port* _mtc_port;
1142 MIDI::Port* _midi_port;
1145 bool session_send_mmc;
1146 bool session_send_mtc;
1147 bool session_midi_feedback;
1150 nframes_t last_loopend;
1152 RingBuffer<Event*> pending_events;
1155 void when_engine_running ();
1156 void graph_reordered ();
1158 string _current_snapshot_name;
1160 XMLTree* state_tree;
1161 bool state_was_pending;
1162 StateOfTheState _state_of_the_state;
1165 int load_options (const XMLNode&);
1166 XMLNode& get_options () const;
1167 int load_state (string snapshot_name);
1168 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1170 nframes_t _last_roll_location;
1171 nframes_t _last_record_location;
1172 bool pending_locate_roll;
1173 nframes_t pending_locate_frame;
1175 bool pending_locate_flush;
1177 bool pending_auto_loop;
1179 Sample* butler_mixdown_buffer;
1180 float* butler_gain_buffer;
1181 pthread_t butler_thread;
1182 Glib::Mutex butler_request_lock;
1183 Glib::Cond butler_paused;
1184 bool butler_should_run;
1185 mutable gint butler_should_do_transport_work;
1186 int butler_request_pipe[2];
1188 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1190 struct ButlerRequest {
1199 enum PostTransportWork {
1200 PostTransportStop = 0x1,
1201 PostTransportDisableRecord = 0x2,
1202 PostTransportPosition = 0x8,
1203 PostTransportDidRecord = 0x20,
1204 PostTransportDuration = 0x40,
1205 PostTransportLocate = 0x80,
1206 PostTransportRoll = 0x200,
1207 PostTransportAbort = 0x800,
1208 PostTransportOverWrite = 0x1000,
1209 PostTransportSpeed = 0x2000,
1210 PostTransportAudition = 0x4000,
1211 PostTransportScrub = 0x8000,
1212 PostTransportReverse = 0x10000,
1213 PostTransportInputChange = 0x20000,
1214 PostTransportCurveRealloc = 0x40000
1217 static const PostTransportWork ProcessCannotProceedMask =
1218 PostTransportWork (PostTransportInputChange|
1220 PostTransportReverse|
1221 PostTransportCurveRealloc|
1223 PostTransportAudition|
1224 PostTransportLocate|
1227 PostTransportWork post_transport_work;
1229 void summon_butler ();
1230 void schedule_butler_transport_work ();
1231 int start_butler_thread ();
1232 void terminate_butler_thread ();
1233 static void *_butler_thread_work (void *arg);
1234 void* butler_thread_work ();
1236 uint32_t cumulative_rf_motion;
1239 void set_rf_speed (float speed);
1240 void reset_rf_scale (nframes_t frames_moved);
1242 Locations _locations;
1243 void locations_changed ();
1244 void locations_added (Location*);
1245 void handle_locations_changed (Locations::LocationList&);
1247 sigc::connection auto_punch_start_changed_connection;
1248 sigc::connection auto_punch_end_changed_connection;
1249 sigc::connection auto_punch_changed_connection;
1250 void auto_punch_start_changed (Location *);
1251 void auto_punch_end_changed (Location *);
1252 void auto_punch_changed (Location *);
1254 sigc::connection auto_loop_start_changed_connection;
1255 sigc::connection auto_loop_end_changed_connection;
1256 sigc::connection auto_loop_changed_connection;
1257 void auto_loop_changed (Location *);
1259 typedef list<Event *> Events;
1261 Events immediate_events;
1262 Events::iterator next_event;
1264 /* there can only ever be one of each of these */
1266 Event *auto_loop_event;
1267 Event *punch_out_event;
1268 Event *punch_in_event;
1272 void dump_events () const;
1273 void queue_event (Event *ev);
1274 void merge_event (Event*);
1275 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1276 bool _replace_event (Event*);
1277 bool _remove_event (Event *);
1278 void _clear_event_type (Event::Type);
1280 void first_stage_init (string path, string snapshot_name);
1281 int second_stage_init (bool new_tracks);
1282 void find_current_end ();
1283 void remove_empty_sounds ();
1285 void setup_midi_control ();
1286 int midi_read (MIDI::Port *);
1288 void enable_record ();
1290 void increment_transport_position (uint32_t val) {
1291 if (max_frames - val < _transport_frame) {
1292 _transport_frame = max_frames;
1294 _transport_frame += val;
1298 void decrement_transport_position (uint32_t val) {
1299 if (val < _transport_frame) {
1300 _transport_frame -= val;
1302 _transport_frame = 0;
1306 void post_transport_motion ();
1307 static void *session_loader_thread (void *arg);
1311 void set_next_event ();
1312 void process_event (Event *);
1314 /* MIDI Machine Control */
1316 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1317 void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1318 void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1320 void spp_start (MIDI::Parser&);
1321 void spp_continue (MIDI::Parser&);
1322 void spp_stop (MIDI::Parser&);
1324 void mmc_deferred_play (MIDI::MachineControl &);
1325 void mmc_stop (MIDI::MachineControl &);
1326 void mmc_step (MIDI::MachineControl &, int);
1327 void mmc_pause (MIDI::MachineControl &);
1328 void mmc_record_pause (MIDI::MachineControl &);
1329 void mmc_record_strobe (MIDI::MachineControl &);
1330 void mmc_record_exit (MIDI::MachineControl &);
1331 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1332 void mmc_fast_forward (MIDI::MachineControl &);
1333 void mmc_rewind (MIDI::MachineControl &);
1334 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1335 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1336 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1338 struct timeval last_mmc_step;
1341 typedef sigc::slot<bool> MidiTimeoutCallback;
1342 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1344 MidiTimeoutList midi_timeouts;
1345 bool mmc_step_timeout ();
1347 MIDI::byte mmc_buffer[32];
1348 MIDI::byte mtc_msg[16];
1349 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1350 MIDI::byte midi_msg[16];
1351 nframes_t outbound_mtc_smpte_frame;
1352 SMPTE::Time transmitting_smpte_time;
1353 int next_quarter_frame_to_send;
1355 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1356 nframes_t _frames_per_hour;
1357 nframes_t _smpte_frames_per_hour;
1358 nframes_t _smpte_offset;
1359 bool _smpte_offset_negative;
1361 /* cache the most-recently requested time conversions.
1362 this helps when we have multiple clocks showing the
1363 same time (e.g. the transport frame)
1366 bool last_smpte_valid;
1367 nframes_t last_smpte_when;
1368 SMPTE::Time last_smpte;
1370 int send_full_time_code ();
1371 int send_midi_time_code ();
1373 void send_full_time_code_in_another_thread ();
1374 void send_midi_time_code_in_another_thread ();
1375 void send_time_code_in_another_thread (bool full);
1376 void send_mmc_in_another_thread (MIDI::MachineControl::Command, nframes_t frame = 0);
1378 nframes_t adjust_apparent_position (nframes_t frames);
1380 void reset_record_status ();
1382 int fail_roll (nframes_t nframes);
1383 int no_roll (nframes_t nframes);
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 {
1401 MIDI::MachineControl::Command mmc_cmd;
1402 nframes_t locate_frame;
1404 // for SendMessage type
1407 MIDI::channel_t chan;
1409 MIDI::EventTwoBytes data;
1420 void *operator new(size_t ignored) {
1421 return pool.alloc ();
1424 void operator delete(void *ptr, size_t size) {
1429 static MultiAllocSingleReleasePool pool;
1432 Glib::Mutex midi_lock;
1433 pthread_t midi_thread;
1434 int midi_request_pipe[2];
1435 mutable gint butler_active;
1436 RingBuffer<MIDIRequest*> midi_requests;
1438 int start_midi_thread ();
1439 void terminate_midi_thread ();
1440 void poke_midi_thread ();
1441 static void *_midi_thread_work (void *arg);
1442 void midi_thread_work ();
1443 void change_midi_ports ();
1444 int use_config_midi_ports ();
1446 void set_play_loop (bool yn);
1447 void overwrite_some_buffers (Diskstream*);
1448 void flush_all_redirects ();
1449 int micro_locate (nframes_t distance);
1450 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1451 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1452 void force_locate (nframes_t frame, bool with_roll = false);
1453 void set_diskstream_speed (Diskstream*, float speed);
1454 void set_transport_speed (float speed, bool abort = false);
1455 void stop_transport (bool abort = false);
1456 void start_transport ();
1457 void realtime_stop (bool abort);
1458 void non_realtime_start_scrub ();
1459 void non_realtime_set_speed ();
1460 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1461 void non_realtime_overwrite (int entry_request_count, bool& finished);
1462 void butler_transport_work ();
1463 void post_transport ();
1464 void engine_halted ();
1465 void xrun_recovery ();
1467 TempoMap *_tempo_map;
1468 void tempo_map_changed (Change);
1470 /* edit/mix groups */
1472 int load_route_groups (const XMLNode&, bool is_edit);
1473 int load_edit_groups (const XMLNode&);
1474 int load_mix_groups (const XMLNode&);
1477 list<RouteGroup *> edit_groups;
1478 list<RouteGroup *> mix_groups;
1482 SerializedRCUManager<DiskstreamList> diskstreams;
1484 uint32_t dstream_buffer_size;
1485 int load_diskstreams (const XMLNode&);
1489 SerializedRCUManager<RouteList> routes;
1491 void add_routes (RouteList&, bool save);
1492 uint32_t destructive_index;
1494 int load_routes (const XMLNode&);
1495 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1499 bool solo_update_disabled;
1500 bool currently_soloing;
1502 void route_mute_changed (void *src);
1503 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1504 void catch_up_on_solo ();
1505 void catch_up_on_solo_mute_override ();
1506 void update_route_solo_state ();
1507 void modify_solo_mute (bool, bool);
1508 void strip_portname_for_solo (string& portname);
1510 /* REGION MANAGEMENT */
1512 std::map<std::string,uint32_t> region_name_map;
1513 void update_region_name_map (boost::shared_ptr<Region>);
1515 mutable Glib::Mutex region_lock;
1516 typedef map<PBD::ID,boost::shared_ptr<AudioRegion> > AudioRegionList;
1517 AudioRegionList audio_regions;
1519 void add_region (boost::shared_ptr<Region>);
1520 void region_changed (Change, boost::weak_ptr<Region>);
1521 void remove_region (boost::weak_ptr<Region>);
1523 int load_regions (const XMLNode& node);
1527 mutable Glib::Mutex audio_source_lock;
1528 typedef std::map<PBD::ID,boost::shared_ptr<AudioSource> > AudioSourceList;
1530 AudioSourceList audio_sources;
1533 AudioSourceList get_audio_sources() { return audio_sources; }
1538 int load_sources (const XMLNode& node);
1539 XMLNode& get_sources_as_xml ();
1541 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1545 mutable Glib::Mutex playlist_lock;
1546 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1547 PlaylistList playlists;
1548 PlaylistList unused_playlists;
1550 int load_playlists (const XMLNode&);
1551 int load_unused_playlists (const XMLNode&);
1552 void remove_playlist (boost::weak_ptr<Playlist>);
1553 void track_playlist (bool, boost::weak_ptr<Playlist>);
1555 boost::shared_ptr<Playlist> playlist_factory (string name);
1556 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1558 void playlist_length_changed ();
1559 void diskstream_playlist_changed (boost::weak_ptr<Diskstream>);
1561 /* NAMED SELECTIONS */
1563 mutable Glib::Mutex named_selection_lock;
1564 typedef set<NamedSelection *> NamedSelectionList;
1565 NamedSelectionList named_selections;
1567 int load_named_selections (const XMLNode&);
1569 NamedSelection *named_selection_factory (string name);
1570 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1572 /* CURVES and AUTOMATION LISTS */
1573 std::map<PBD::ID, Curve*> curves;
1574 std::map<PBD::ID, AutomationList*> automation_lists;
1576 /* DEFAULT FADE CURVES */
1578 float default_fade_steepness;
1579 float default_fade_msecs;
1583 boost::shared_ptr<Auditioner> auditioner;
1584 void set_audition (boost::shared_ptr<Region>);
1585 void non_realtime_set_audition ();
1586 boost::shared_ptr<Region> pending_audition_region;
1592 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1594 /* INSERT AND SEND MANAGEMENT */
1596 list<PortInsert *> _port_inserts;
1597 list<PluginInsert *> _plugin_inserts;
1598 list<Send *> _sends;
1599 boost::dynamic_bitset<uint32_t> send_bitset;
1600 boost::dynamic_bitset<uint32_t> insert_bitset;
1602 uint32_t insert_cnt;
1605 void add_redirect (Redirect *);
1606 void remove_redirect (Redirect *);
1610 struct space_and_path {
1611 uint32_t blocks; /* 4kB blocks */
1619 struct space_and_path_ascending_cmp {
1620 bool operator() (space_and_path a, space_and_path b) {
1621 return a.blocks > b.blocks;
1625 void setup_raid_path (string path);
1627 vector<space_and_path> session_dirs;
1628 vector<space_and_path>::iterator last_rr_session_dir;
1629 uint32_t _total_free_4k_blocks;
1630 Glib::Mutex space_lock;
1632 static const char* old_sound_dir_name;
1633 static const char* sound_dir_name;
1634 static const char* dead_sound_dir_name;
1635 static const char* interchange_dir_name;
1636 static const char* peak_dir_name;
1637 static const char* export_dir_name;
1639 string old_sound_dir (bool with_path = true) const;
1640 string discover_best_sound_dir (bool destructive = false);
1641 int ensure_sound_dir (string, string&);
1642 void refresh_disk_space ();
1644 mutable gint _playback_load;
1645 mutable gint _capture_load;
1646 mutable gint _playback_load_min;
1647 mutable gint _capture_load_min;
1649 /* I/O Connections */
1651 typedef list<Connection *> ConnectionList;
1652 mutable Glib::Mutex connection_lock;
1653 ConnectionList _connections;
1654 int load_connections (const XMLNode&);
1656 void reverse_diskstream_buffers ();
1658 UndoHistory _history;
1659 UndoTransaction* current_trans;
1661 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1662 GlobalRouteMeterState get_global_route_metering ();
1664 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1665 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1667 void set_global_mute (GlobalRouteBooleanState s, void *src);
1668 void set_global_solo (GlobalRouteBooleanState s, void *src);
1669 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1671 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1672 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1673 void reset_jack_connection (jack_client_t* jack);
1674 void record_enable_change_all (bool yn);
1676 XMLNode& state(bool);
1686 Click (nframes_t s, nframes_t d, const Sample *b)
1687 : start (s), duration (d), data (b) { offset = 0; }
1689 void *operator new(size_t ignored) {
1690 return pool.alloc ();
1693 void operator delete(void *ptr, size_t size) {
1701 typedef list<Click*> Clicks;
1705 boost::shared_ptr<IO> _click_io;
1707 Sample* click_emphasis_data;
1708 nframes_t click_length;
1709 nframes_t click_emphasis_length;
1710 mutable Glib::RWLock click_lock;
1712 static const Sample default_click[];
1713 static const nframes_t default_click_length;
1714 static const Sample default_click_emphasis[];
1715 static const nframes_t default_click_emphasis_length;
1718 void setup_click_sounds (int which);
1719 void clear_clicks ();
1720 void click (nframes_t start, nframes_t nframes);
1722 vector<Route*> master_outs;
1724 /* range playback */
1726 list<AudioRange> current_audio_range;
1728 void set_play_range (bool yn);
1729 void setup_auto_play ();
1734 boost::shared_ptr<IO> _master_out;
1735 boost::shared_ptr<IO> _control_out;
1737 gain_t* _gain_automation_buffer;
1738 pan_t** _pan_automation_buffer;
1739 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1740 uint32_t _npan_buffers;
1744 long _vst_callback (VSTPlugin*,
1751 /* number of hardware audio ports we're using,
1752 based on max (requested,available)
1755 uint32_t n_physical_audio_outputs;
1756 uint32_t n_physical_audio_inputs;
1758 int find_all_sources (std::string path, std::set<std::string>& result);
1759 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1761 LayerModel layer_model;
1762 CrossfadeModel xfade_model;
1764 typedef std::set<PBD::Controllable*> Controllables;
1765 Glib::Mutex controllables_lock;
1766 Controllables controllables;
1768 void reset_native_file_format();
1769 bool first_file_data_format_reset;
1770 bool first_file_header_format_reset;
1772 void config_changed (const char*);
1774 XMLNode& get_control_protocol_state ();
1776 void set_history_depth (uint32_t depth);
1778 static bool _disable_all_loaded_plugins;
1780 /* used in ::audible_frame() */
1782 mutable bool have_looped;
1784 static void get_templates_from (const std::string& path, std::list<std::string> &template_names);
1787 } // namespace ARDOUR
1789 #endif /* __ardour_session_h__ */