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.
21 #ifndef __ardour_session_h__
22 #define __ardour_session_h__
32 #include <boost/weak_ptr.hpp>
33 #include <boost/dynamic_bitset.hpp>
39 #include <glibmm/thread.h>
41 #include <pbd/error.h>
45 #include <pbd/statefuldestructible.h>
47 #include <midi++/types.h>
48 #include <midi++/mmc.h>
50 #include <pbd/stateful.h>
51 #include <pbd/destructible.h>
53 #include <ardour/ardour.h>
54 #include <ardour/configuration.h>
55 #include <ardour/location.h>
56 #include <ardour/gain.h>
57 #include <ardour/io.h>
77 class AudioDiskstream;
82 class AudioFileSource;
97 class ControlProtocolInfo;
99 struct AudioExportSpecification;
107 class Session : public PBD::StatefulDestructible
111 typedef std::pair<boost::weak_ptr<Route>,bool> RouteBooleanState;
112 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
113 typedef std::pair<boost::weak_ptr<Route>,MeterPoint> RouteMeterState;
114 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;
168 boost::shared_ptr<Region> region;
170 list<AudioRange> audio_range;
171 list<MusicRange> music_range;
173 Event(Type t, Action a, nframes_t when, nframes_t where, float spd, bool yn = false)
177 target_frame (where),
181 void set_ptr (void* p) {
185 bool before (const Event& other) const {
186 return action_frame < other.action_frame;
189 bool after (const Event& other) const {
190 return action_frame > other.action_frame;
193 static bool compare (const Event *e1, const Event *e2) {
194 return e1->before (*e2);
197 void *operator new (size_t ignored) {
198 return pool.alloc ();
201 void operator delete(void *ptr, size_t size) {
205 static const nframes_t Immediate = 0;
208 static MultiAllocSingleReleasePool pool;
211 /* creating from an XML file */
213 Session (AudioEngine&,
215 string snapshot_name,
216 string* mix_template = 0);
218 /* creating a new Session */
220 Session (AudioEngine&,
222 string snapshot_name,
223 AutoConnectOption input_auto_connect,
224 AutoConnectOption output_auto_connect,
225 uint32_t control_out_channels,
226 uint32_t master_out_channels,
227 uint32_t n_physical_in,
228 uint32_t n_physical_out,
229 nframes_t initial_length);
234 static int find_session (string str, string& path, string& snapshot, bool& isnew);
236 string path() const { return _path; }
237 string name() const { return _name; }
238 string snap_name() const { return _current_snapshot_name; }
239 string raid_path () const;
240 string export_dir () const;
242 void set_snap_name ();
246 bool dirty() const { return _state_of_the_state & Dirty; }
247 void set_deletion_in_progress ();
248 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
249 sigc::signal<void> DirtyChanged;
251 std::string sound_dir (bool with_path = true) const;
252 std::string peak_dir () const;
253 std::string dead_sound_dir () const;
254 std::string automation_dir () const;
256 string peak_path_from_audio_path (string) const;
258 static string suffixed_search_path (std::string suffix, bool data);
259 static string control_protocol_path ();
260 static string template_path ();
261 static string template_dir ();
262 static void get_template_list (list<string>&);
264 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
265 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
267 void process (nframes_t nframes);
269 vector<Sample*>& get_passthru_buffers() { return _passthru_buffers; }
270 vector<Sample*>& get_silent_buffers (uint32_t howmany);
271 vector<Sample*>& get_send_buffers () { return _send_buffers; }
273 void add_diskstream (boost::shared_ptr<Diskstream>);
274 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
275 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
277 bool have_captured() const { return _have_captured; }
279 void refill_all_diskstream_buffers ();
280 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
282 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
283 uint32_t n_diskstreams() const;
285 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
286 typedef std::list<boost::shared_ptr<Route> > RouteList;
288 boost::shared_ptr<RouteList> get_routes() const {
289 return routes.reader ();
292 uint32_t nroutes() const { return routes.reader()->size(); }
293 uint32_t ntracks () const;
294 uint32_t nbusses () const;
296 struct RoutePublicOrderSorter {
297 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
300 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
301 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
302 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
304 boost::shared_ptr<Route> route_by_name (string);
305 boost::shared_ptr<Route> route_by_id (PBD::ID);
306 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
308 bool route_name_unique (string) const;
310 bool get_record_enabled() const {
311 return (record_status () >= Enabled);
314 RecordState record_status() const {
315 return (RecordState) g_atomic_int_get (&_record_status);
318 bool actively_recording () {
319 return record_status() == Recording;
322 bool record_enabling_legal () const;
323 void maybe_enable_record ();
324 void disable_record (bool rt_context, bool force = false);
325 void step_back_from_record ();
327 /* Proxy signal for region hidden changes */
329 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
331 /* Emitted when all i/o connections are complete */
333 sigc::signal<void> IOConnectionsComplete;
335 /* Record status signals */
337 sigc::signal<void> RecordStateChanged;
339 /* Transport mechanism signals */
341 sigc::signal<void> TransportStateChange; /* generic */
342 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
343 sigc::signal<void> DurationChanged;
344 sigc::signal<void> HaltOnXrun;
346 sigc::signal<void,RouteList&> RouteAdded;
348 void request_roll ();
349 void request_bounded_roll (nframes_t start, nframes_t end);
350 void request_stop (bool abort = false);
351 void request_locate (nframes_t frame, bool with_roll = false);
353 void request_play_loop (bool yn);
354 bool get_play_loop () const { return play_loop; }
356 nframes_t last_transport_start() const { return _last_roll_location; }
357 void goto_end () { request_locate (end_location->start(), false);}
358 void goto_start () { request_locate (start_location->start(), false); }
359 void set_session_start (nframes_t start) { start_location->set_start(start); }
360 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
361 void use_rf_shuttle_speed ();
362 void request_transport_speed (float speed);
363 void request_overwrite_buffer (Diskstream*);
364 void request_diskstream_speed (Diskstream&, float speed);
365 void request_input_change_handling ();
367 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
368 bool transport_locked () const;
372 int remove_region_from_region_list (boost::shared_ptr<Region>);
374 nframes_t get_maximum_extent () const;
375 nframes_t current_end_frame() const { return end_location->start(); }
376 nframes_t current_start_frame() const { return start_location->start(); }
377 nframes_t frame_rate() const { return _current_frame_rate; }
378 nframes_t frames_per_hour() const { return _frames_per_hour; }
380 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
381 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
383 float smpte_frames_per_second() const;
384 bool smpte_drop_frames() const;
388 Locations *locations() { return &_locations; }
390 sigc::signal<void,Location*> auto_loop_location_changed;
391 sigc::signal<void,Location*> auto_punch_location_changed;
392 sigc::signal<void> locations_modified;
394 void set_auto_punch_location (Location *);
395 void set_auto_loop_location (Location *);
396 int location_name(string& result, string base = string(""));
398 void reset_input_monitor_state ();
400 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
401 void remove_event (nframes_t frame, Event::Type type);
402 void clear_events (Event::Type type);
404 nframes_t get_block_size() const { return current_block_size; }
405 nframes_t worst_output_latency () const { return _worst_output_latency; }
406 nframes_t worst_input_latency () const { return _worst_input_latency; }
407 nframes_t worst_track_latency () const { return _worst_track_latency; }
409 int save_state (string snapshot_name, bool pending = false);
410 int restore_state (string snapshot_name);
411 int save_template (string template_name);
412 int save_history (string snapshot_name = "");
413 int restore_history (string snapshot_name);
415 static int rename_template (string old_name, string new_name);
417 static int delete_template (string name);
419 sigc::signal<void,string> StateSaved;
420 sigc::signal<void> StateReady;
422 vector<string*>* possible_states() const;
423 static vector<string*>* possible_states(string path);
425 XMLNode& get_state();
426 int set_state(const XMLNode& node); // not idempotent
427 XMLNode& get_template();
429 void add_instant_xml (XMLNode&, const std::string& dir);
431 enum StateOfTheState {
436 InitialConnecting = 0x8,
441 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
443 RouteGroup* add_edit_group (string);
444 RouteGroup* add_mix_group (string);
446 void remove_edit_group (RouteGroup&);
447 void remove_mix_group (RouteGroup&);
449 RouteGroup *mix_group_by_name (string);
450 RouteGroup *edit_group_by_name (string);
452 sigc::signal<void,RouteGroup*> edit_group_added;
453 sigc::signal<void,RouteGroup*> mix_group_added;
454 sigc::signal<void> edit_group_removed;
455 sigc::signal<void> mix_group_removed;
457 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
458 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
463 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
464 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
469 /* fundamental operations. duh. */
471 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
472 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
474 void remove_route (boost::shared_ptr<Route>);
476 void resort_routes ();
477 void resort_routes_using (boost::shared_ptr<RouteList>);
479 AudioEngine &engine() { return _engine; };
486 nframes_t transport_frame () const {return _transport_frame; }
487 nframes_t audible_frame () const;
501 int set_smpte_format (SmpteFormat);
502 void sync_time_vars();
504 void bbt_time (nframes_t when, BBT_Time&);
505 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
506 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
507 void smpte_time (SMPTE::Time &);
508 void smpte_time (nframes_t when, SMPTE::Time&);
509 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
511 void smpte_duration (nframes_t, SMPTE::Time&) const;
512 void smpte_duration_string (char *, nframes_t) const;
514 void set_smpte_offset (nframes_t);
515 nframes_t smpte_offset () const { return _smpte_offset; }
516 void set_smpte_offset_negative (bool);
517 bool smpte_offset_negative () const { return _smpte_offset_negative; }
519 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
521 static sigc::signal<void> StartTimeChanged;
522 static sigc::signal<void> EndTimeChanged;
523 static sigc::signal<void> SMPTEOffsetChanged;
525 void request_slave_source (SlaveSource);
526 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
528 float transport_speed() const { return _transport_speed; }
529 bool transport_stopped() const { return _transport_speed == 0.0f; }
530 bool transport_rolling() const { return _transport_speed != 0.0f; }
532 int jack_slave_sync (nframes_t);
534 TempoMap& tempo_map() { return *_tempo_map; }
538 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionAdded;
539 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionRemoved;
541 int region_name (string& result, string base = string(""), bool newlevel = false) const;
542 string new_region_name (string);
543 string path_from_region_name (string name, string identifier);
545 boost::shared_ptr<AudioRegion> find_whole_file_parent (boost::shared_ptr<AudioRegion const>);
546 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
548 boost::shared_ptr<AudioRegion> XMLRegionFactory (const XMLNode&, bool full);
550 template<class T> void foreach_audio_region (T *obj, void (T::*func)(boost::shared_ptr<AudioRegion>));
552 /* source management */
554 struct import_status : public InterThreadInfo {
560 volatile bool freeze;
561 std::vector<Glib::ustring> paths;
564 std::vector<boost::shared_ptr<AudioRegion> > new_regions;
568 int import_audiofile (import_status&);
569 bool sample_rate_convert (import_status&, string infile, string& outfile);
570 string build_tmp_convert_name (string file);
572 SlaveSource post_export_slave;
573 nframes_t post_export_position;
575 int start_audio_export (ARDOUR::AudioExportSpecification&);
576 int stop_audio_export (ARDOUR::AudioExportSpecification&);
578 void add_source (boost::shared_ptr<Source>);
579 void remove_source (boost::weak_ptr<Source>);
581 struct cleanup_report {
582 vector<string> paths;
586 int cleanup_sources (cleanup_report&);
587 int cleanup_trash_sources (cleanup_report&);
589 int destroy_region (boost::shared_ptr<Region>);
590 int destroy_regions (std::list<boost::shared_ptr<Region> >);
592 int remove_last_capture ();
594 /* handlers should return -1 for "stop cleanup", 0 for
595 "yes, delete this playlist" and 1 for "no, don't delete
599 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
601 /* handlers should return !0 for use pending state, 0 for
605 static sigc::signal<int> AskAboutPendingState;
607 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
609 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
611 /* playlist management */
613 boost::shared_ptr<Playlist> playlist_by_name (string name);
614 void add_playlist (boost::shared_ptr<Playlist>);
615 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
616 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
618 uint32_t n_playlists() const;
620 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
621 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
623 /* named selections */
625 NamedSelection* named_selection_by_name (string name);
626 void add_named_selection (NamedSelection *);
627 void remove_named_selection (NamedSelection *);
629 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
630 sigc::signal<void> NamedSelectionAdded;
631 sigc::signal<void> NamedSelectionRemoved;
633 /* Curves and AutomationLists (TODO when they go away) */
634 void add_curve(Curve*);
635 void add_automation_list(AutomationList*);
639 float get_default_fade_length () const { return default_fade_msecs; }
640 float get_default_fade_steepness () const { return default_fade_steepness; }
641 void set_default_fade (float steepness, float msecs);
645 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
646 void audition_playlist ();
647 void audition_region (boost::shared_ptr<Region>);
648 void cancel_audition ();
649 bool is_auditioning () const;
651 sigc::signal<void,bool> AuditionActive;
653 /* flattening stuff */
655 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite, vector<boost::shared_ptr<AudioSource> >&,
656 InterThreadInfo& wot);
657 int freeze (InterThreadInfo&);
659 /* session-wide solo/mute/rec-enable */
661 bool soloing() const { return currently_soloing; }
663 void set_all_solo (bool);
664 void set_all_mute (bool);
666 sigc::signal<void,bool> SoloActive;
667 sigc::signal<void> SoloChanged;
669 void record_disenable_all ();
670 void record_enable_all ();
672 /* control/master out */
674 boost::shared_ptr<IO> control_out() const { return _control_out; }
675 boost::shared_ptr<IO> master_out() const { return _master_out; }
677 /* insert/send management */
679 uint32_t n_port_inserts() const { return _port_inserts.size(); }
680 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
681 uint32_t n_sends() const { return _sends.size(); }
683 uint32_t next_send_id();
684 uint32_t next_insert_id();
685 void mark_send_id (uint32_t);
686 void mark_insert_id (uint32_t);
688 /* s/w "RAID" management */
690 nframes_t available_capture_duration();
692 /* I/O Connections */
694 template<class T> void foreach_connection (T *obj, void (T::*func)(Connection *));
695 void add_connection (Connection *);
696 void remove_connection (Connection *);
697 Connection *connection_by_name (string) const;
699 sigc::signal<void,Connection *> ConnectionAdded;
700 sigc::signal<void,Connection *> ConnectionRemoved;
704 int set_mtc_port (string port_tag);
705 int set_mmc_port (string port_tag);
706 int set_midi_port (string port_tag);
707 MIDI::Port *mtc_port() const { return _mtc_port; }
708 MIDI::Port *mmc_port() const { return _mmc_port; }
709 MIDI::Port *midi_port() const { return _midi_port; }
711 sigc::signal<void> MTC_PortChanged;
712 sigc::signal<void> MMC_PortChanged;
713 sigc::signal<void> MIDI_PortChanged;
715 void set_trace_midi_input (bool, MIDI::Port* port = 0);
716 void set_trace_midi_output (bool, MIDI::Port* port = 0);
718 bool get_trace_midi_input(MIDI::Port *port = 0);
719 bool get_trace_midi_output(MIDI::Port *port = 0);
721 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
723 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
727 void start_scrub (nframes_t where);
729 void set_scrub_speed (float);
730 nframes_t scrub_buffer_size() const;
731 sigc::signal<void> ScrubReady;
733 /* History (for editors, mixers, UIs etc.) */
735 void undo (uint32_t n) {
739 void redo (uint32_t n) {
743 UndoHistory& history() { return _history; }
745 uint32_t undo_depth() const { return _history.undo_depth(); }
746 uint32_t redo_depth() const { return _history.redo_depth(); }
747 string next_undo() const { return _history.next_undo(); }
748 string next_redo() const { return _history.next_redo(); }
750 void begin_reversible_command (string cmd_name);
751 void commit_reversible_command (Command* cmd = 0);
753 void add_command (Command *const cmd) {
754 current_trans->add_command (cmd);
757 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
759 // these commands are implemented in libs/ardour/session_command.cc
760 Command* memento_command_factory(XMLNode* n);
761 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
763 Command* global_state_command_factory (const XMLNode& n);
765 class GlobalRouteStateCommand : public Command
768 GlobalRouteStateCommand (Session&, void*);
769 GlobalRouteStateCommand (Session&, const XMLNode& node);
770 int set_state (const XMLNode&);
771 XMLNode& get_state ();
774 GlobalRouteBooleanState before, after;
780 class GlobalSoloStateCommand : public GlobalRouteStateCommand
783 GlobalSoloStateCommand (Session &, void *src);
784 GlobalSoloStateCommand (Session&, const XMLNode&);
785 void operator()(); //redo
787 XMLNode &get_state();
791 class GlobalMuteStateCommand : public GlobalRouteStateCommand
794 GlobalMuteStateCommand(Session &, void *src);
795 GlobalMuteStateCommand (Session&, const XMLNode&);
796 void operator()(); // redo
798 XMLNode &get_state();
802 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
805 GlobalRecordEnableStateCommand(Session &, void *src);
806 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
807 void operator()(); // redo
809 XMLNode &get_state();
813 class GlobalMeteringStateCommand : public Command
816 GlobalMeteringStateCommand(Session &, void *src);
817 GlobalMeteringStateCommand (Session&, const XMLNode&);
820 XMLNode &get_state();
821 int set_state (const XMLNode&);
827 GlobalRouteMeterState before;
828 GlobalRouteMeterState after;
833 boost::shared_ptr<IO> click_io() { return _click_io; }
837 struct TimeStretchRequest {
838 boost::shared_ptr<ARDOUR::AudioRegion> region;
839 float fraction; /* session: read ; GUI: write */
840 float progress; /* session: write ; GUI: read */
841 bool running; /* read/write */
842 bool quick_seek; /* GUI: write */
843 bool antialias; /* GUI: write */
845 TimeStretchRequest () {}
848 boost::shared_ptr<AudioRegion> tempoize_region (TimeStretchRequest&);
850 /* disk, buffer loads */
852 uint32_t playback_load ();
853 uint32_t capture_load ();
854 uint32_t playback_load_min ();
855 uint32_t capture_load_min ();
857 void reset_playback_load_min ();
858 void reset_capture_load_min ();
860 float read_data_rate () const;
861 float write_data_rate () const;
865 void set_audio_range (list<AudioRange>&);
866 void set_music_range (list<MusicRange>&);
868 void request_play_range (bool yn);
869 bool get_play_range () const { return _play_range; }
872 typedef vector<string> FavoriteDirs;
874 static int read_favorite_dirs (FavoriteDirs&);
876 static int write_favorite_dirs (FavoriteDirs&);
880 static const char* template_suffix() { return _template_suffix; }
881 static const char* statefile_suffix() { return _statefile_suffix; }
882 static const char* pending_suffix() { return _pending_suffix; }
884 /* buffers for gain and pan */
886 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
887 pan_t** pan_automation_buffer() const { return _pan_automation_buffer; }
889 /* buffers for conversion */
898 static long vst_callback (AEffect* effect,
905 typedef float (*compute_peak_t) (Sample *, nframes_t, float);
906 typedef void (*apply_gain_to_buffer_t) (Sample *, nframes_t, float);
907 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, nframes_t, float);
908 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, nframes_t);
910 static compute_peak_t compute_peak;
911 static apply_gain_to_buffer_t apply_gain_to_buffer;
912 static mix_buffers_with_gain_t mix_buffers_with_gain;
913 static mix_buffers_no_gain_t mix_buffers_no_gain;
915 static sigc::signal<void> SendFeedback;
919 PBD::Controllable* controllable_by_id (const PBD::ID&);
921 void add_controllable (PBD::Controllable*);
922 void remove_controllable (PBD::Controllable*);
925 friend class AudioEngine;
926 void set_block_size (nframes_t nframes);
927 void set_frame_rate (nframes_t nframes);
930 friend class Diskstream;
932 void wait_till_butler_finished();
936 void schedule_curve_reallocation ();
937 void update_latency_compensation (bool, bool);
940 int create (bool& new_session, string* mix_template, nframes_t initial_length);
943 nframes_t compute_initial_length ();
945 static const char* _template_suffix;
946 static const char* _statefile_suffix;
947 static const char* _pending_suffix;
950 PendingDeclickIn = 0x1,
951 PendingDeclickOut = 0x2,
952 StopPendingCapture = 0x4,
953 AutoReturning = 0x10,
954 PendingLocate = 0x20,
955 PendingSetLoop = 0x40
958 /* stuff used in process() should be close together to
962 typedef void (Session::*process_function_type)(nframes_t);
964 AudioEngine &_engine;
965 mutable gint processing_prohibited;
966 process_function_type process_function;
967 process_function_type last_process_function;
968 bool waiting_for_sync_offset;
969 nframes_t _base_frame_rate;
970 nframes_t _current_frame_rate; //this includes video pullup offset
971 int transport_sub_state;
972 mutable gint _record_status;
973 nframes_t _transport_frame;
974 Location* end_location;
975 Location* start_location;
977 volatile float _transport_speed;
978 volatile float _desired_transport_speed;
979 float _last_transport_speed;
980 nframes_t _last_slave_transport_frame;
981 nframes_t maximum_output_latency;
982 nframes_t last_stop_frame;
983 vector<Sample *> _passthru_buffers;
984 vector<Sample *> _silent_buffers;
985 vector<Sample *> _send_buffers;
986 nframes_t current_block_size;
987 nframes_t _worst_output_latency;
988 nframes_t _worst_input_latency;
989 nframes_t _worst_track_latency;
992 float _meter_falloff;
993 bool _end_location_is_free;
995 void set_worst_io_latencies ();
996 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
997 set_worst_io_latencies ();
1000 void update_latency_compensation_proxy (void* ignored);
1002 void ensure_passthru_buffers (uint32_t howmany);
1004 void process_scrub (nframes_t);
1005 void process_without_events (nframes_t);
1006 void process_with_events (nframes_t);
1007 void process_audition (nframes_t);
1008 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1010 /* slave tracking */
1012 static const int delta_accumulator_size = 25;
1013 int delta_accumulator_cnt;
1014 long delta_accumulator[delta_accumulator_size];
1015 long average_slave_delta;
1017 bool have_first_delta_accumulator;
1025 SlaveState slave_state;
1026 nframes_t slave_wait_end;
1028 void reset_slave_state ();
1029 bool follow_slave (nframes_t, nframes_t);
1030 void set_slave_source (SlaveSource);
1033 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1035 void prepare_diskstreams ();
1036 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1037 int process_routes (nframes_t, nframes_t);
1038 int silent_process_routes (nframes_t, nframes_t);
1040 bool get_rec_monitors_input () {
1041 if (actively_recording()) {
1044 if (Config->get_auto_input()) {
1052 int get_transport_declick_required () {
1054 if (transport_sub_state & PendingDeclickIn) {
1055 transport_sub_state &= ~PendingDeclickIn;
1057 } else if (transport_sub_state & PendingDeclickOut) {
1064 bool maybe_stop (nframes_t limit) {
1065 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1072 bool maybe_sync_start (nframes_t&, nframes_t&);
1074 void check_declick_out ();
1076 MIDI::MachineControl* mmc;
1077 MIDI::Port* _mmc_port;
1078 MIDI::Port* _mtc_port;
1079 MIDI::Port* _midi_port;
1082 bool session_send_mmc;
1083 bool session_send_mtc;
1084 bool session_midi_feedback;
1087 nframes_t last_loopend;
1089 RingBuffer<Event*> pending_events;
1092 void when_engine_running ();
1093 void graph_reordered ();
1095 string _current_snapshot_name;
1097 XMLTree* state_tree;
1098 bool state_was_pending;
1099 StateOfTheState _state_of_the_state;
1102 int load_options (const XMLNode&);
1103 XMLNode& get_options () const;
1104 int load_state (string snapshot_name);
1105 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1107 nframes_t _last_roll_location;
1108 nframes_t _last_record_location;
1109 bool pending_locate_roll;
1110 nframes_t pending_locate_frame;
1112 bool pending_locate_flush;
1114 bool pending_auto_loop;
1116 Sample* butler_mixdown_buffer;
1117 float* butler_gain_buffer;
1118 pthread_t butler_thread;
1119 Glib::Mutex butler_request_lock;
1120 Glib::Cond butler_paused;
1121 bool butler_should_run;
1122 mutable gint butler_should_do_transport_work;
1123 int butler_request_pipe[2];
1125 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1127 struct ButlerRequest {
1136 enum PostTransportWork {
1137 PostTransportStop = 0x1,
1138 PostTransportDisableRecord = 0x2,
1139 PostTransportPosition = 0x8,
1140 PostTransportDidRecord = 0x20,
1141 PostTransportDuration = 0x40,
1142 PostTransportLocate = 0x80,
1143 PostTransportRoll = 0x200,
1144 PostTransportAbort = 0x800,
1145 PostTransportOverWrite = 0x1000,
1146 PostTransportSpeed = 0x2000,
1147 PostTransportAudition = 0x4000,
1148 PostTransportScrub = 0x8000,
1149 PostTransportReverse = 0x10000,
1150 PostTransportInputChange = 0x20000,
1151 PostTransportCurveRealloc = 0x40000
1154 static const PostTransportWork ProcessCannotProceedMask =
1155 PostTransportWork (PostTransportInputChange|
1157 PostTransportReverse|
1158 PostTransportCurveRealloc|
1160 PostTransportAudition|
1161 PostTransportLocate|
1164 PostTransportWork post_transport_work;
1166 void summon_butler ();
1167 void schedule_butler_transport_work ();
1168 int start_butler_thread ();
1169 void terminate_butler_thread ();
1170 static void *_butler_thread_work (void *arg);
1171 void* butler_thread_work ();
1173 uint32_t cumulative_rf_motion;
1176 void set_rf_speed (float speed);
1177 void reset_rf_scale (nframes_t frames_moved);
1179 Locations _locations;
1180 void locations_changed ();
1181 void locations_added (Location*);
1182 void handle_locations_changed (Locations::LocationList&);
1184 sigc::connection auto_punch_start_changed_connection;
1185 sigc::connection auto_punch_end_changed_connection;
1186 sigc::connection auto_punch_changed_connection;
1187 void auto_punch_start_changed (Location *);
1188 void auto_punch_end_changed (Location *);
1189 void auto_punch_changed (Location *);
1191 sigc::connection auto_loop_start_changed_connection;
1192 sigc::connection auto_loop_end_changed_connection;
1193 sigc::connection auto_loop_changed_connection;
1194 void auto_loop_changed (Location *);
1196 typedef list<Event *> Events;
1198 Events immediate_events;
1199 Events::iterator next_event;
1201 /* there can only ever be one of each of these */
1203 Event *auto_loop_event;
1204 Event *punch_out_event;
1205 Event *punch_in_event;
1209 void dump_events () const;
1210 void queue_event (Event *ev);
1211 void merge_event (Event*);
1212 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1213 bool _replace_event (Event*);
1214 bool _remove_event (Event *);
1215 void _clear_event_type (Event::Type);
1217 void first_stage_init (string path, string snapshot_name);
1218 int second_stage_init (bool new_tracks);
1219 void find_current_end ();
1220 void remove_empty_sounds ();
1222 void setup_midi_control ();
1223 int midi_read (MIDI::Port *);
1225 void enable_record ();
1227 void increment_transport_position (uint32_t val) {
1228 if (max_frames - val < _transport_frame) {
1229 _transport_frame = max_frames;
1231 _transport_frame += val;
1235 void decrement_transport_position (uint32_t val) {
1236 if (val < _transport_frame) {
1237 _transport_frame -= val;
1239 _transport_frame = 0;
1243 void post_transport_motion ();
1244 static void *session_loader_thread (void *arg);
1248 void set_next_event ();
1249 void process_event (Event *);
1251 /* MIDI Machine Control */
1253 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1254 void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1255 void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1257 void spp_start (MIDI::Parser&);
1258 void spp_continue (MIDI::Parser&);
1259 void spp_stop (MIDI::Parser&);
1261 void mmc_deferred_play (MIDI::MachineControl &);
1262 void mmc_stop (MIDI::MachineControl &);
1263 void mmc_step (MIDI::MachineControl &, int);
1264 void mmc_pause (MIDI::MachineControl &);
1265 void mmc_record_pause (MIDI::MachineControl &);
1266 void mmc_record_strobe (MIDI::MachineControl &);
1267 void mmc_record_exit (MIDI::MachineControl &);
1268 void mmc_track_record_status (MIDI::MachineControl &,
1269 uint32_t track, bool enabled);
1270 void mmc_fast_forward (MIDI::MachineControl &);
1271 void mmc_rewind (MIDI::MachineControl &);
1272 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1273 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1274 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1276 struct timeval last_mmc_step;
1279 typedef sigc::slot<bool> MidiTimeoutCallback;
1280 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1282 MidiTimeoutList midi_timeouts;
1283 bool mmc_step_timeout ();
1285 MIDI::byte mmc_buffer[32];
1286 MIDI::byte mtc_msg[16];
1287 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1288 MIDI::byte midi_msg[16];
1289 nframes_t outbound_mtc_smpte_frame;
1290 SMPTE::Time transmitting_smpte_time;
1291 int next_quarter_frame_to_send;
1293 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1294 nframes_t _frames_per_hour;
1295 nframes_t _smpte_frames_per_hour;
1296 nframes_t _smpte_offset;
1297 bool _smpte_offset_negative;
1299 /* cache the most-recently requested time conversions.
1300 this helps when we have multiple clocks showing the
1301 same time (e.g. the transport frame)
1304 bool last_smpte_valid;
1305 nframes_t last_smpte_when;
1306 SMPTE::Time last_smpte;
1308 int send_full_time_code ();
1309 int send_midi_time_code ();
1311 void send_full_time_code_in_another_thread ();
1312 void send_midi_time_code_in_another_thread ();
1313 void send_time_code_in_another_thread (bool full);
1314 void send_mmc_in_another_thread (MIDI::MachineControl::Command, nframes_t frame = 0);
1316 nframes_t adjust_apparent_position (nframes_t frames);
1318 void reset_record_status ();
1320 int no_roll (nframes_t nframes, nframes_t offset);
1322 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1323 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1325 struct MIDIRequest {
1338 MIDI::MachineControl::Command mmc_cmd;
1339 nframes_t locate_frame;
1341 // for SendMessage type
1344 MIDI::channel_t chan;
1346 MIDI::EventTwoBytes data;
1357 void *operator new(size_t ignored) {
1358 return pool.alloc ();
1361 void operator delete(void *ptr, size_t size) {
1366 static MultiAllocSingleReleasePool pool;
1369 Glib::Mutex midi_lock;
1370 pthread_t midi_thread;
1371 int midi_request_pipe[2];
1372 mutable gint butler_active;
1373 RingBuffer<MIDIRequest*> midi_requests;
1375 int start_midi_thread ();
1376 void terminate_midi_thread ();
1377 void poke_midi_thread ();
1378 static void *_midi_thread_work (void *arg);
1379 void midi_thread_work ();
1380 void change_midi_ports ();
1381 int use_config_midi_ports ();
1383 bool waiting_to_start;
1385 void set_play_loop (bool yn);
1386 void overwrite_some_buffers (Diskstream*);
1387 void flush_all_redirects ();
1388 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1389 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1390 void force_locate (nframes_t frame, bool with_roll = false);
1391 void set_diskstream_speed (Diskstream*, float speed);
1392 void set_transport_speed (float speed, bool abort = false);
1393 void stop_transport (bool abort = false);
1394 void start_transport ();
1395 void actually_start_transport ();
1396 void realtime_stop (bool abort);
1397 void non_realtime_start_scrub ();
1398 void non_realtime_set_speed ();
1399 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1400 void non_realtime_overwrite (int entry_request_count, bool& finished);
1401 void butler_transport_work ();
1402 void post_transport ();
1403 void engine_halted ();
1404 void xrun_recovery ();
1406 TempoMap *_tempo_map;
1407 void tempo_map_changed (Change);
1409 /* edit/mix groups */
1411 int load_route_groups (const XMLNode&, bool is_edit);
1412 int load_edit_groups (const XMLNode&);
1413 int load_mix_groups (const XMLNode&);
1416 list<RouteGroup *> edit_groups;
1417 list<RouteGroup *> mix_groups;
1421 SerializedRCUManager<DiskstreamList> diskstreams;
1423 uint32_t dstream_buffer_size;
1424 int load_diskstreams (const XMLNode&);
1428 SerializedRCUManager<RouteList> routes;
1430 void add_routes (RouteList&, bool save = true);
1431 uint32_t destructive_index;
1433 int load_routes (const XMLNode&);
1434 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1438 bool solo_update_disabled;
1439 bool currently_soloing;
1441 void route_mute_changed (void *src);
1442 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1443 void catch_up_on_solo ();
1444 void update_route_solo_state ();
1445 void modify_solo_mute (bool, bool);
1446 void strip_portname_for_solo (string& portname);
1448 /* REGION MANAGEMENT */
1450 mutable Glib::Mutex region_lock;
1451 typedef map<PBD::ID,boost::shared_ptr<AudioRegion> > AudioRegionList;
1452 AudioRegionList audio_regions;
1454 void add_region (boost::shared_ptr<Region>);
1455 void region_changed (Change, boost::weak_ptr<Region>);
1456 void remove_region (boost::weak_ptr<Region>);
1458 int load_regions (const XMLNode& node);
1462 mutable Glib::Mutex audio_source_lock;
1463 typedef std::map<PBD::ID,boost::shared_ptr<AudioSource> > AudioSourceList;
1465 AudioSourceList audio_sources;
1467 int load_sources (const XMLNode& node);
1468 XMLNode& get_sources_as_xml ();
1470 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1474 mutable Glib::Mutex playlist_lock;
1475 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1476 PlaylistList playlists;
1477 PlaylistList unused_playlists;
1479 int load_playlists (const XMLNode&);
1480 int load_unused_playlists (const XMLNode&);
1481 void remove_playlist (boost::weak_ptr<Playlist>);
1482 void track_playlist (bool, boost::weak_ptr<Playlist>);
1484 boost::shared_ptr<Playlist> playlist_factory (string name);
1485 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1487 void playlist_length_changed ();
1488 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1490 /* NAMED SELECTIONS */
1492 mutable Glib::Mutex named_selection_lock;
1493 typedef set<NamedSelection *> NamedSelectionList;
1494 NamedSelectionList named_selections;
1496 int load_named_selections (const XMLNode&);
1498 NamedSelection *named_selection_factory (string name);
1499 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1501 /* CURVES and AUTOMATION LISTS */
1502 std::map<PBD::ID, Curve*> curves;
1503 std::map<PBD::ID, AutomationList*> automation_lists;
1505 /* DEFAULT FADE CURVES */
1507 float default_fade_steepness;
1508 float default_fade_msecs;
1512 boost::shared_ptr<Auditioner> auditioner;
1513 void set_audition (boost::shared_ptr<Region>);
1514 void non_realtime_set_audition ();
1515 boost::shared_ptr<Region> pending_audition_region;
1521 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1523 /* INSERT AND SEND MANAGEMENT */
1525 list<PortInsert *> _port_inserts;
1526 list<PluginInsert *> _plugin_inserts;
1527 list<Send *> _sends;
1528 boost::dynamic_bitset<uint32_t> send_bitset;
1529 boost::dynamic_bitset<uint32_t> insert_bitset;
1531 uint32_t insert_cnt;
1534 void add_redirect (Redirect *);
1535 void remove_redirect (Redirect *);
1539 struct space_and_path {
1540 uint32_t blocks; /* 4kB blocks */
1548 struct space_and_path_ascending_cmp {
1549 bool operator() (space_and_path a, space_and_path b) {
1550 return a.blocks > b.blocks;
1554 void setup_raid_path (string path);
1556 vector<space_and_path> session_dirs;
1557 vector<space_and_path>::iterator last_rr_session_dir;
1558 uint32_t _total_free_4k_blocks;
1559 Glib::Mutex space_lock;
1561 static const char* old_sound_dir_name;
1562 static const char* sound_dir_name;
1563 static const char* dead_sound_dir_name;
1564 static const char* interchange_dir_name;
1565 static const char* peak_dir_name;
1566 static const char* export_dir_name;
1568 string discover_best_sound_dir (bool destructive = false);
1569 int ensure_sound_dir (string, string&);
1570 void refresh_disk_space ();
1572 mutable gint _playback_load;
1573 mutable gint _capture_load;
1574 mutable gint _playback_load_min;
1575 mutable gint _capture_load_min;
1577 /* I/O Connections */
1579 typedef list<Connection *> ConnectionList;
1580 mutable Glib::Mutex connection_lock;
1581 ConnectionList _connections;
1582 int load_connections (const XMLNode&);
1584 void reverse_diskstream_buffers ();
1586 UndoHistory _history;
1587 UndoTransaction* current_trans;
1589 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1590 GlobalRouteMeterState get_global_route_metering ();
1592 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1593 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1595 void set_global_mute (GlobalRouteBooleanState s, void *src);
1596 void set_global_solo (GlobalRouteBooleanState s, void *src);
1597 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1599 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1600 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1601 void record_enable_change_all (bool yn);
1603 XMLNode& state(bool);
1613 Click (nframes_t s, nframes_t d, const Sample *b)
1614 : start (s), duration (d), data (b) { offset = 0; }
1616 void *operator new(size_t ignored) {
1617 return pool.alloc ();
1620 void operator delete(void *ptr, size_t size) {
1628 typedef list<Click*> Clicks;
1632 boost::shared_ptr<IO> _click_io;
1634 Sample* click_emphasis_data;
1635 nframes_t click_length;
1636 nframes_t click_emphasis_length;
1637 mutable Glib::RWLock click_lock;
1639 static const Sample default_click[];
1640 static const nframes_t default_click_length;
1641 static const Sample default_click_emphasis[];
1642 static const nframes_t default_click_emphasis_length;
1645 void setup_click_sounds (int which);
1646 void clear_clicks ();
1647 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1649 vector<Route*> master_outs;
1651 /* range playback */
1653 list<AudioRange> current_audio_range;
1655 void set_play_range (bool yn);
1656 void setup_auto_play ();
1661 boost::shared_ptr<IO> _master_out;
1662 boost::shared_ptr<IO> _control_out;
1664 gain_t* _gain_automation_buffer;
1665 pan_t** _pan_automation_buffer;
1666 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1667 uint32_t _npan_buffers;
1671 long _vst_callback (VSTPlugin*,
1678 /* number of hardware audio ports we're using,
1679 based on max (requested,available)
1682 uint32_t n_physical_outputs;
1683 uint32_t n_physical_inputs;
1685 void remove_pending_capture_state ();
1687 int find_all_sources (std::string path, std::set<std::string>& result);
1688 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1690 LayerModel layer_model;
1691 CrossfadeModel xfade_model;
1693 typedef std::set<PBD::Controllable*> Controllables;
1694 Glib::Mutex controllables_lock;
1695 Controllables controllables;
1697 void reset_native_file_format();
1698 bool first_file_data_format_reset;
1699 bool first_file_header_format_reset;
1701 void config_changed (const char*);
1703 XMLNode& get_control_protocol_state ();
1707 } // namespace ARDOUR
1709 #endif /* __ardour_session_h__ */