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__
27 using __gnu_cxx::slist;
39 #include <pbd/error.h>
40 #include <pbd/atomic.h>
41 #include <pbd/lockmonitor.h>
45 #include <midi++/types.h>
46 #include <midi++/mmc.h>
48 #include <ardour/ardour.h>
49 #include <ardour/configuration.h>
50 #include <ardour/location.h>
51 #include <ardour/stateful.h>
52 #include <ardour/gain.h>
53 #include <ardour/io.h>
88 struct AudioExportSpecification;
97 class Session : public sigc::trackable, public Stateful
101 typedef std::pair<Route*,bool> RouteBooleanState;
102 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
103 typedef std::pair<Route*,MeterPoint> RouteMeterState;
104 typedef vector<RouteMeterState> GlobalRouteMeterState;
119 enum AutoConnectOption {
120 AutoConnectPhysical = 0x1,
121 AutoConnectMaster = 0x2
138 InputConfigurationChange,
142 /* only one of each of these events
143 can be queued at any one time
159 jack_nframes_t action_frame;
160 jack_nframes_t target_frame;
166 Session::SlaveSource slave;
169 list<AudioRange> audio_range;
170 list<MusicRange> music_range;
172 Event(Type t, Action a, jack_nframes_t when, jack_nframes_t where, float spd, bool yn = false)
176 target_frame (where),
180 void set_ptr (void* p) {
184 bool before (const Event& other) const {
185 return action_frame < other.action_frame;
188 bool after (const Event& other) const {
189 return action_frame > other.action_frame;
192 static bool compare (const Event *e1, const Event *e2) {
193 return e1->before (*e2);
196 void *operator new (size_t ignored) {
197 return pool.alloc ();
200 void operator delete(void *ptr, size_t size) {
204 static const jack_nframes_t Immediate = 0;
207 static MultiAllocSingleReleasePool pool;
210 /* creating from an XML file */
212 Session (AudioEngine&,
214 string snapshot_name,
215 string* mix_template = 0);
217 /* creating a new Session */
219 Session (AudioEngine&,
221 string snapshot_name,
222 AutoConnectOption input_auto_connect,
223 AutoConnectOption output_auto_connect,
224 uint32_t control_out_channels,
225 uint32_t master_out_channels,
226 uint32_t n_physical_in,
227 uint32_t n_physical_out,
228 jack_nframes_t initial_length);
233 static int find_session (string str, string& path, string& snapshot, bool& isnew);
235 string path() const { return _path; }
236 string name() const { return _name; }
237 string snap_name() const { return _current_snapshot_name; }
239 void set_snap_name ();
243 bool dirty() const { return _state_of_the_state & Dirty; }
244 sigc::signal<void> DirtyChanged;
246 string sound_dir () const;
247 string peak_dir () const;
248 string dead_sound_dir () const;
249 string automation_dir () const;
251 static string template_path ();
252 static string template_dir ();
253 static void get_template_list (list<string>&);
255 static string peak_path_from_audio_path (string);
256 static string old_peak_path_from_audio_path (string);
258 void process (jack_nframes_t nframes);
260 vector<Sample*>& get_passthru_buffers() { return _passthru_buffers; }
261 vector<Sample*>& get_silent_buffers (uint32_t howmany);
263 DiskStream *diskstream_by_id (id_t id);
264 DiskStream *diskstream_by_name (string name);
266 bool have_captured() const { return _have_captured; }
268 void refill_all_diskstream_buffers ();
269 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
270 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
271 uint32_t n_diskstreams() const;
273 typedef list<DiskStream *> DiskStreamList;
275 Session::DiskStreamList disk_streams() const {
276 RWLockMonitor lm (diskstream_lock, false, __LINE__, __FILE__);
277 return diskstreams; /* XXX yes, force a copy */
280 void foreach_diskstream (void (DiskStream::*func)(void));
281 template<class T> void foreach_diskstream (T *obj, void (T::*func)(DiskStream&));
283 typedef slist<Route *> RouteList;
285 RouteList get_routes() const {
286 RWLockMonitor rlock (route_lock, false, __LINE__, __FILE__);
287 return routes; /* XXX yes, force a copy */
290 uint32_t nroutes() const { return routes.size(); }
291 uint32_t ntracks () const;
292 uint32_t nbusses () const;
294 struct RoutePublicOrderSorter {
295 bool operator() (Route *, Route *b);
298 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
299 template<class T> void foreach_route (T *obj, void (T::*func)(Route*));
300 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
302 Route *route_by_name (string);
304 bool route_name_unique (string) const;
306 bool get_record_enabled() const {
307 return (record_status () >= Enabled);
310 RecordState record_status() const {
311 return (RecordState) atomic_read (&_record_status);
314 bool actively_recording () {
315 return record_status() == Recording;
318 bool record_enabling_legal () const;
319 void maybe_enable_record ();
320 void disable_record ();
321 void step_back_from_record ();
323 sigc::signal<void> going_away;
325 /* Proxy signal for region hidden changes */
327 sigc::signal<void,Region*> RegionHiddenChange;
329 /* Emitted when all i/o connections are complete */
331 sigc::signal<void> IOConnectionsComplete;
333 /* Record status signals */
335 sigc::signal<void> RecordEnabled;
336 sigc::signal<void> RecordDisabled;
338 /* Transport mechanism signals */
340 sigc::signal<void> TransportStateChange; /* generic */
341 sigc::signal<void,jack_nframes_t> PositionChanged; /* sent after any non-sequential motion */
342 sigc::signal<void> DurationChanged;
343 sigc::signal<void> HaltOnXrun;
345 sigc::signal<void,Route*> RouteAdded;
346 sigc::signal<void,DiskStream*> DiskStreamAdded;
348 void request_roll ();
349 void request_bounded_roll (jack_nframes_t start, jack_nframes_t end);
350 void request_stop (bool abort = false);
351 void request_locate (jack_nframes_t frame, bool with_roll = false);
352 void request_auto_loop (bool yn);
353 jack_nframes_t last_transport_start() const { return _last_roll_location; }
354 void goto_end () { request_locate (end_location->start(), false);}
355 void goto_start () { request_locate (0, false); }
356 void use_rf_shuttle_speed ();
357 void request_transport_speed (float speed);
358 void request_overwrite_buffer (DiskStream*);
359 void request_diskstream_speed (DiskStream&, float speed);
360 void request_input_change_handling ();
363 int wipe_diskstream (DiskStream *);
365 int remove_region_from_region_list (Region&);
367 jack_nframes_t current_end_frame() const { return end_location->start(); }
368 jack_nframes_t frame_rate() const { return _current_frame_rate; }
369 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
370 jack_nframes_t frames_per_hour() const { return _frames_per_hour; }
371 jack_nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
375 Locations *locations() { return &_locations; }
377 sigc::signal<void,Location*> auto_loop_location_changed;
378 sigc::signal<void,Location*> auto_punch_location_changed;
379 sigc::signal<void> locations_modified;
381 void set_auto_punch_location (Location *);
382 void set_auto_loop_location (Location *);
410 sigc::signal<void,ControlType> ControlChanged;
412 void set_auto_play (bool yn);
413 void set_auto_return (bool yn);
414 void set_auto_input (bool yn);
415 void reset_input_monitor_state ();
416 void set_input_auto_connect (bool yn);
417 void set_output_auto_connect (AutoConnectOption);
418 void set_punch_in (bool yn);
419 void set_punch_out (bool yn);
420 void set_send_mtc (bool yn);
421 void set_send_mmc (bool yn);
422 void set_mmc_control (bool yn);
423 void set_midi_feedback (bool yn);
424 void set_midi_control (bool yn);
425 void set_recording_plugins (bool yn);
426 void set_crossfades_active (bool yn);
427 void set_seamless_loop (bool yn);
429 bool get_auto_play () const { return auto_play; }
430 bool get_auto_input () const { return auto_input; }
431 bool get_auto_loop () const { return auto_loop; }
432 bool get_seamless_loop () const { return seamless_loop; }
433 bool get_punch_in () const { return punch_in; }
434 bool get_punch_out () const { return punch_out; }
435 bool get_all_safe () const { return all_safe; }
436 bool get_auto_return () const { return auto_return; }
437 bool get_send_mtc () const;
438 bool get_send_mmc () const;
439 bool get_mmc_control () const;
440 bool get_midi_feedback () const;
441 bool get_midi_control () const;
442 bool get_recording_plugins () const { return recording_plugins; }
443 bool get_crossfades_active () const { return crossfades_active; }
445 bool get_input_auto_connect () const;
446 AutoConnectOption get_output_auto_connect () const { return output_auto_connect; }
454 void set_layer_model (LayerModel);
455 LayerModel get_layer_model () const { return layer_model; }
457 void set_xfade_model (CrossfadeModel);
458 CrossfadeModel get_xfade_model () const { return xfade_model; }
460 void add_event (jack_nframes_t action_frame, Event::Type type, jack_nframes_t target_frame = 0);
461 void remove_event (jack_nframes_t frame, Event::Type type);
462 void clear_events (Event::Type type);
464 jack_nframes_t get_block_size() const { return current_block_size; }
465 jack_nframes_t worst_output_latency () const { return _worst_output_latency; }
466 jack_nframes_t worst_input_latency () const { return _worst_input_latency; }
467 jack_nframes_t worst_track_latency () const { return _worst_track_latency; }
469 int save_state (string snapshot_name, bool pending = false);
470 int restore_state (string snapshot_name);
471 int save_template (string template_name);
473 static int rename_template (string old_name, string new_name);
475 static int delete_template (string name);
477 sigc::signal<void,string> StateSaved;
478 sigc::signal<void> StateReady;
480 vector<string*>* possible_states() const;
481 static vector<string*>* possible_states(string path);
483 XMLNode& get_state();
484 int set_state(const XMLNode& node);
485 XMLNode& get_template();
487 void add_instant_xml (XMLNode&, const std::string& dir);
489 void swap_configuration(Configuration** new_config);
490 void copy_configuration(Configuration* new_config);
492 enum StateOfTheState {
497 InitialConnecting = 0x8,
502 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
504 RouteGroup* add_edit_group (string);
505 RouteGroup* add_mix_group (string);
507 RouteGroup *mix_group_by_name (string);
508 RouteGroup *edit_group_by_name (string);
510 sigc::signal<void,RouteGroup*> edit_group_added;
511 sigc::signal<void,RouteGroup*> mix_group_added;
513 template<class T> void foreach_edit_group (T *obj, void (T::*func)(RouteGroup *)) {
514 list<RouteGroup *>::iterator i;
515 for (i = edit_groups.begin(); i != edit_groups.end(); i++) {
520 template<class T> void foreach_mix_group (T *obj, void (T::*func)(RouteGroup *)) {
521 list<RouteGroup *>::iterator i;
522 for (i = mix_groups.begin(); i != mix_groups.end(); i++) {
527 /* fundamental operations. duh. */
530 AudioTrack *new_audio_track (int input_channels, int output_channels);
532 Route *new_audio_route (int input_channels, int output_channels);
534 void remove_route (Route&);
535 void resort_routes (void *src);
537 AudioEngine &engine() { return _engine; };
539 /* configuration. there should really be accessors/mutators
543 float meter_hold () { return _meter_hold; }
544 void set_meter_hold (float);
545 sigc::signal<void> MeterHoldChanged;
547 float meter_falloff () { return _meter_falloff; }
548 void set_meter_falloff (float);
549 sigc::signal<void> MeterFalloffChanged;
553 string click_emphasis_sound;
555 bool click_requested;
556 jack_nframes_t over_length_short;
557 jack_nframes_t over_length_long;
558 bool send_midi_timecode;
559 bool send_midi_machine_control;
560 float shuttle_speed_factor;
561 float shuttle_speed_threshold;
563 float smpte_frames_per_second;
564 bool smpte_drop_frames;
570 jack_nframes_t transport_frame () const {return _transport_frame; }
571 jack_nframes_t audible_frame () const;
573 int set_smpte_type (float fps, bool drop_frames);
575 void bbt_time (jack_nframes_t when, BBT_Time&);
577 ARDOUR::smpte_wrap_t smpte_increment( SMPTE_Time& smpte ) const;
578 ARDOUR::smpte_wrap_t smpte_decrement( SMPTE_Time& smpte ) const;
579 ARDOUR::smpte_wrap_t smpte_increment_subframes( SMPTE_Time& smpte ) const;
580 ARDOUR::smpte_wrap_t smpte_decrement_subframes( SMPTE_Time& smpte ) const;
581 ARDOUR::smpte_wrap_t smpte_increment_seconds( SMPTE_Time& smpte ) const;
582 ARDOUR::smpte_wrap_t smpte_increment_minutes( SMPTE_Time& smpte ) const;
583 ARDOUR::smpte_wrap_t smpte_increment_hours( SMPTE_Time& smpte ) const;
584 void smpte_frames_floor( SMPTE_Time& smpte ) const;
585 void smpte_seconds_floor( SMPTE_Time& smpte ) const;
586 void smpte_minutes_floor( SMPTE_Time& smpte ) const;
587 void smpte_hours_floor( SMPTE_Time& smpte ) const;
588 void smpte_to_sample( SMPTE_Time& smpte, jack_nframes_t& sample, bool use_offset, bool use_subframes ) const;
589 void sample_to_smpte( jack_nframes_t sample, SMPTE_Time& smpte, bool use_offset, bool use_subframes ) const;
590 void smpte_time (SMPTE_Time &);
591 void smpte_time (jack_nframes_t when, SMPTE_Time&);
592 void smpte_time_subframes (jack_nframes_t when, SMPTE_Time&);
594 void smpte_duration (jack_nframes_t, SMPTE_Time&) const;
595 void smpte_duration_string (char *, jack_nframes_t) const;
597 void set_smpte_offset (jack_nframes_t);
598 jack_nframes_t smpte_offset () const { return _smpte_offset; }
599 void set_smpte_offset_negative (bool);
600 bool smpte_offset_negative () const { return _smpte_offset_negative; }
602 jack_nframes_t convert_to_frames_at (jack_nframes_t position, AnyTime&);
604 sigc::signal<void> SMPTEOffsetChanged;
605 sigc::signal<void> SMPTETypeChanged;
607 void request_slave_source (SlaveSource, jack_nframes_t pos = 0);
608 SlaveSource slave_source() const { return _slave_type; }
609 bool synced_to_jack() const { return _slave_type == JACK; }
610 float transport_speed() const { return _transport_speed; }
611 bool transport_stopped() const { return _transport_speed == 0.0f; }
612 bool transport_rolling() const { return _transport_speed != 0.0f; }
614 int jack_slave_sync (jack_nframes_t);
616 TempoMap& tempo_map() { return *_tempo_map; }
620 sigc::signal<void,AudioRegion *> AudioRegionAdded;
621 sigc::signal<void,AudioRegion *> AudioRegionRemoved;
623 int region_name (string& result, string base = string(""), bool newlevel = false) const;
624 string new_region_name (string);
625 string path_from_region_name (string name, string identifier);
627 AudioRegion* find_whole_file_parent (AudioRegion&);
628 void find_equivalent_playlist_regions (AudioRegion&, std::vector<AudioRegion*>& result);
630 AudioRegion *XMLRegionFactory (const XMLNode&, bool full);
632 template<class T> void foreach_audio_region (T *obj, void (T::*func)(AudioRegion *));
634 /* source management */
636 struct import_status : public InterThreadInfo {
642 volatile bool freeze;
646 int import_audiofile (import_status&);
647 bool sample_rate_convert (import_status&, string infile, string& outfile);
648 string build_tmp_convert_name (string file);
650 Session::SlaveSource post_export_slave;
651 jack_nframes_t post_export_position;
653 int start_audio_export (ARDOUR::AudioExportSpecification&);
654 int stop_audio_export (ARDOUR::AudioExportSpecification&);
656 void add_source (Source *);
657 int remove_file_source (FileSource&);
659 struct cleanup_report {
660 vector<string> paths;
664 int cleanup_sources (cleanup_report&);
665 int cleanup_trash_sources (cleanup_report&);
667 int destroy_region (Region*);
668 int destroy_regions (list<Region*>);
670 int remove_last_capture ();
672 /* handlers should return -1 for "stop cleanup", 0 for
673 "yes, delete this playlist" and 1 for "no, don't delete
677 sigc::signal<int,ARDOUR::Playlist*> AskAboutPlaylistDeletion;
680 /* handlers should return !0 for use pending state, 0 for
684 static sigc::signal<int> AskAboutPendingState;
686 sigc::signal<void,Source *> SourceAdded;
687 sigc::signal<void,Source *> SourceRemoved;
689 FileSource *create_file_source (ARDOUR::DiskStream&, int32_t chan);
690 Source *get_source (ARDOUR::id_t);
692 /* playlist management */
694 Playlist* playlist_by_name (string name);
695 void add_playlist (Playlist *);
696 sigc::signal<void,Playlist*> PlaylistAdded;
697 sigc::signal<void,Playlist*> PlaylistRemoved;
699 Playlist *get_playlist (string name);
701 uint32_t n_playlists() const;
703 template<class T> void foreach_playlist (T *obj, void (T::*func)(Playlist *));
705 /* named selections */
707 NamedSelection* named_selection_by_name (string name);
708 void add_named_selection (NamedSelection *);
709 void remove_named_selection (NamedSelection *);
711 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
712 sigc::signal<void> NamedSelectionAdded;
713 sigc::signal<void> NamedSelectionRemoved;
717 float get_default_fade_length () const { return default_fade_msecs; }
718 float get_default_fade_steepness () const { return default_fade_steepness; }
719 void set_default_fade (float steepness, float msecs);
723 Auditioner& the_auditioner() { return *auditioner; }
724 void audition_playlist ();
725 void audition_region (AudioRegion&);
726 void cancel_audition ();
727 bool is_auditioning () const;
729 sigc::signal<void,bool> AuditionActive;
731 /* flattening stuff */
733 int write_one_track (AudioTrack&, jack_nframes_t start, jack_nframes_t cnt, bool overwrite, vector<Source*>&,
734 InterThreadInfo& wot);
735 int freeze (InterThreadInfo&);
737 /* session-wide solo/mute/rec-enable */
744 bool soloing() const { return currently_soloing; }
746 SoloModel solo_model() const { return _solo_model; }
747 void set_solo_model (SoloModel);
749 bool solo_latched() const { return _solo_latched; }
750 void set_solo_latched (bool yn);
752 void set_all_solo (bool);
753 void set_all_mute (bool);
755 sigc::signal<void,bool> SoloActive;
757 void record_disenable_all ();
758 void record_enable_all ();
760 /* control/master out */
762 IO* control_out() const { return _control_out; }
763 IO* master_out() const { return _master_out; }
765 /* insert/send management */
767 uint32_t n_port_inserts() const { return _port_inserts.size(); }
768 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
769 uint32_t n_sends() const { return _sends.size(); }
771 string next_send_name();
772 string next_insert_name();
774 /* s/w "RAID" management */
776 jack_nframes_t available_capture_duration();
778 /* I/O Connections */
780 template<class T> void foreach_connection (T *obj, void (T::*func)(Connection *));
781 void add_connection (Connection *);
782 void remove_connection (Connection *);
783 Connection *connection_by_name (string) const;
785 sigc::signal<void,Connection *> ConnectionAdded;
786 sigc::signal<void,Connection *> ConnectionRemoved;
790 int set_mtc_port (string port_tag);
791 int set_mmc_port (string port_tag);
792 int set_midi_port (string port_tag);
793 MIDI::Port *mtc_port() const { return _mtc_port; }
794 MIDI::Port *mmc_port() const { return _mmc_port; }
795 MIDI::Port *midi_port() const { return _midi_port; }
797 sigc::signal<void> MTC_PortChanged;
798 sigc::signal<void> MMC_PortChanged;
799 sigc::signal<void> MIDI_PortChanged;
801 void set_trace_midi_input (bool, MIDI::Port* port = 0);
802 void set_trace_midi_output (bool, MIDI::Port* port = 0);
804 bool get_trace_midi_input(MIDI::Port *port = 0);
805 bool get_trace_midi_output(MIDI::Port *port = 0);
807 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
808 void send_all_midi_feedback ();
810 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
814 void start_scrub (jack_nframes_t where);
816 void set_scrub_speed (float);
817 jack_nframes_t scrub_buffer_size() const;
818 sigc::signal<void> ScrubReady;
820 /* History (for editors, mixers, UIs etc.) */
822 void undo (uint32_t n) {
825 void redo (uint32_t n) {
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 (string cmd_name, UndoAction *private_undo = 0);
835 void commit_reversible_command (UndoAction* private_redo = 0);
837 void add_undo (const UndoAction& ua) {
838 current_cmd.add_undo (ua);
840 void add_redo (const UndoAction& ua) {
841 current_cmd.add_redo (ua);
843 void add_redo_no_execute (const UndoAction& ua) {
844 current_cmd.add_redo_no_execute (ua);
847 UndoAction global_solo_memento (void *src);
848 UndoAction global_mute_memento (void *src);
849 UndoAction global_record_enable_memento (void *src);
850 UndoAction global_metering_memento (void *src);
854 void set_edit_mode (EditMode);
855 EditMode get_edit_mode () const { return _edit_mode; }
859 IO& click_io() { return *_click_io; }
860 void set_clicking (bool yn);
861 bool get_clicking() const;
863 void set_click_sound (string path);
864 void set_click_emphasis_sound (string path);
868 struct TimeStretchRequest {
869 ARDOUR::AudioRegion* region;
870 float fraction; /* session: read ; GUI: write */
871 float progress; /* session: write ; GUI: read */
872 bool running; /* read/write */
873 bool quick_seek; /* GUI: write */
874 bool antialias; /* GUI: write */
876 TimeStretchRequest () : region (0) {}
879 AudioRegion* tempoize_region (TimeStretchRequest&);
881 string raid_path() const;
882 void set_raid_path(string);
884 /* need to call this whenever we change native file formats */
886 void reset_native_file_format();
888 /* disk, buffer loads */
890 uint32_t playback_load ();
891 uint32_t capture_load ();
892 uint32_t playback_load_min ();
893 uint32_t capture_load_min ();
895 void reset_playback_load_min ();
896 void reset_capture_load_min ();
898 float read_data_rate () const;
899 float write_data_rate () const;
903 void set_audio_range (list<AudioRange>&);
904 void set_music_range (list<MusicRange>&);
906 void request_play_range (bool yn);
907 bool get_play_range () const { return _play_range; }
910 typedef vector<string> FavoriteDirs;
912 static int read_favorite_dirs (FavoriteDirs&);
914 static int write_favorite_dirs (FavoriteDirs&);
918 static const char* template_suffix() { return _template_suffix; }
919 static const char* statefile_suffix() { return _statefile_suffix; }
920 static const char* pending_suffix() { return _pending_suffix; }
922 /* buffers for gain and pan */
924 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
925 pan_t** pan_automation_buffer() const { return _pan_automation_buffer; }
929 static long vst_callback (AEffect* effect,
936 typedef float (*compute_peak_t) (Sample *, jack_nframes_t, float);
937 typedef void (*apply_gain_to_buffer_t) (Sample *, jack_nframes_t, float);
938 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, jack_nframes_t, float);
939 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, jack_nframes_t);
941 static compute_peak_t compute_peak;
942 static apply_gain_to_buffer_t apply_gain_to_buffer;
943 static mix_buffers_with_gain_t mix_buffers_with_gain;
944 static mix_buffers_no_gain_t mix_buffers_no_gain;
947 friend class AudioEngine;
948 void set_block_size (jack_nframes_t nframes);
949 void set_frame_rate (jack_nframes_t nframes);
952 friend class DiskStream;
954 void wait_till_butler_finished();
958 void schedule_curve_reallocation ();
959 void update_latency_compensation (bool, bool);
962 int create (bool& new_session, string* mix_template, jack_nframes_t initial_length);
964 static const char* _template_suffix;
965 static const char* _statefile_suffix;
966 static const char* _pending_suffix;
969 PendingDeclickIn = 0x1,
970 PendingDeclickOut = 0x2,
971 StopPendingCapture = 0x4,
972 AutoReturning = 0x10,
973 PendingLocate = 0x20,
974 PendingSetLoop = 0x40
977 /* stuff used in process() should be close together to
981 typedef void (Session::*process_function_type)(jack_nframes_t);
983 AudioEngine &_engine;
984 atomic_t processing_prohibited;
985 process_function_type process_function;
986 process_function_type last_process_function;
987 jack_nframes_t _current_frame_rate;
988 int transport_sub_state;
989 atomic_t _record_status;
990 jack_nframes_t _transport_frame;
991 Location* end_location;
993 SlaveSource _slave_type;
994 volatile float _transport_speed;
995 volatile float _desired_transport_speed;
996 float _last_transport_speed;
997 jack_nframes_t _last_slave_transport_frame;
998 jack_nframes_t maximum_output_latency;
999 jack_nframes_t last_stop_frame;
1000 vector<Sample *> _passthru_buffers;
1001 vector<Sample *> _silent_buffers;
1002 jack_nframes_t current_block_size;
1003 jack_nframes_t _worst_output_latency;
1004 jack_nframes_t _worst_input_latency;
1005 jack_nframes_t _worst_track_latency;
1006 bool _have_captured;
1008 float _meter_falloff;
1009 bool _end_location_is_free;
1011 void set_worst_io_latencies (bool take_lock);
1012 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1013 set_worst_io_latencies (true);
1016 void update_latency_compensation_proxy (void* ignored);
1018 void ensure_passthru_buffers (uint32_t howmany);
1020 void process_scrub (jack_nframes_t);
1021 void process_without_events (jack_nframes_t);
1022 void process_with_events (jack_nframes_t);
1023 void process_audition (jack_nframes_t);
1024 int process_export (jack_nframes_t, ARDOUR::AudioExportSpecification*);
1026 /* slave tracking */
1028 static const int delta_accumulator_size = 25;
1029 int delta_accumulator_cnt;
1030 long delta_accumulator[delta_accumulator_size];
1031 long average_slave_delta;
1033 bool have_first_delta_accumulator;
1041 SlaveState slave_state;
1042 jack_nframes_t slave_wait_end;
1044 void reset_slave_state ();
1045 bool follow_slave (jack_nframes_t, jack_nframes_t);
1048 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1050 void prepare_diskstreams ();
1051 void commit_diskstreams (jack_nframes_t, bool& session_requires_butler);
1052 int process_routes (jack_nframes_t, jack_nframes_t);
1053 int silent_process_routes (jack_nframes_t, jack_nframes_t);
1055 bool get_rec_monitors_input () {
1056 if (actively_recording()) {
1067 int get_transport_declick_required () {
1069 if (transport_sub_state & PendingDeclickIn) {
1070 transport_sub_state &= ~PendingDeclickIn;
1072 } else if (transport_sub_state & PendingDeclickOut) {
1079 bool maybe_stop (jack_nframes_t limit) {
1080 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1087 void check_declick_out ();
1089 MIDI::MachineControl* mmc;
1090 MIDI::Port* _mmc_port;
1091 MIDI::Port* _mtc_port;
1092 MIDI::Port* _midi_port;
1095 bool recording_plugins;
1105 jack_nframes_t last_loopend;
1107 bool crossfades_active;
1117 RingBuffer<Event*> pending_events;
1120 void when_engine_running ();
1121 sigc::connection first_time_running;
1122 void graph_reordered ();
1124 string _current_snapshot_name;
1126 XMLTree* state_tree;
1127 bool state_was_pending;
1128 StateOfTheState _state_of_the_state;
1131 int load_options (const XMLNode&);
1132 XMLNode& get_options () const;
1133 int load_state (string snapshot_name);
1135 jack_nframes_t _last_roll_location;
1136 jack_nframes_t _last_record_location;
1137 bool pending_locate_roll;
1138 jack_nframes_t pending_locate_frame;
1140 bool pending_locate_flush;
1142 bool pending_auto_loop;
1144 Sample* butler_mixdown_buffer;
1145 float* butler_gain_buffer;
1146 pthread_t butler_thread;
1147 PBD::NonBlockingLock butler_request_lock;
1148 pthread_cond_t butler_paused;
1149 bool butler_should_run;
1150 atomic_t butler_should_do_transport_work;
1151 int butler_request_pipe[2];
1153 struct ButlerRequest {
1162 enum PostTransportWork {
1163 PostTransportStop = 0x1,
1164 PostTransportDisableRecord = 0x2,
1165 PostTransportPosition = 0x8,
1166 PostTransportDidRecord = 0x20,
1167 PostTransportDuration = 0x40,
1168 PostTransportLocate = 0x80,
1169 PostTransportRoll = 0x200,
1170 PostTransportAbort = 0x800,
1171 PostTransportOverWrite = 0x1000,
1172 PostTransportSpeed = 0x2000,
1173 PostTransportAudition = 0x4000,
1174 PostTransportScrub = 0x8000,
1175 PostTransportReverse = 0x10000,
1176 PostTransportInputChange = 0x20000,
1177 PostTransportCurveRealloc = 0x40000
1180 static const PostTransportWork ProcessCannotProceedMask =
1181 PostTransportWork (PostTransportInputChange|
1183 PostTransportReverse|
1184 PostTransportCurveRealloc|
1186 PostTransportAudition|
1187 PostTransportLocate|
1190 PostTransportWork post_transport_work;
1192 void summon_butler ();
1193 void schedule_butler_transport_work ();
1194 int start_butler_thread ();
1195 void terminate_butler_thread ();
1196 static void *_butler_thread_work (void *arg);
1197 void* butler_thread_work ();
1199 uint32_t cumulative_rf_motion;
1202 void set_rf_speed (float speed);
1203 void reset_rf_scale (jack_nframes_t frames_moved);
1205 Locations _locations;
1206 void locations_changed ();
1207 void locations_added (Location*);
1208 void handle_locations_changed (Locations::LocationList&);
1210 sigc::connection auto_punch_start_changed_connection;
1211 sigc::connection auto_punch_end_changed_connection;
1212 sigc::connection auto_punch_changed_connection;
1213 void auto_punch_start_changed (Location *);
1214 void auto_punch_end_changed (Location *);
1215 void auto_punch_changed (Location *);
1217 sigc::connection auto_loop_start_changed_connection;
1218 sigc::connection auto_loop_end_changed_connection;
1219 sigc::connection auto_loop_changed_connection;
1220 void auto_loop_changed (Location *);
1222 typedef list<Event *> Events;
1224 Events immediate_events;
1225 Events::iterator next_event;
1227 /* there can only ever be one of each of these */
1229 Event *auto_loop_event;
1230 Event *punch_out_event;
1231 Event *punch_in_event;
1235 void dump_events () const;
1236 void queue_event (Event *ev);
1237 void merge_event (Event*);
1238 void replace_event (Event::Type, jack_nframes_t action_frame, jack_nframes_t target = 0);
1239 bool _replace_event (Event*);
1240 bool _remove_event (Event *);
1241 void _clear_event_type (Event::Type);
1243 void first_stage_init (string path, string snapshot_name);
1244 int second_stage_init (bool new_tracks);
1245 void find_current_end ();
1246 void remove_empty_sounds ();
1248 void setup_midi_control ();
1249 int midi_read (MIDI::Port *);
1251 void enable_record ();
1253 void increment_transport_position (uint32_t val) {
1254 if (max_frames - val < _transport_frame) {
1255 _transport_frame = max_frames;
1257 _transport_frame += val;
1261 void decrement_transport_position (uint32_t val) {
1262 if (val < _transport_frame) {
1263 _transport_frame -= val;
1265 _transport_frame = 0;
1269 void post_transport_motion ();
1270 static void *session_loader_thread (void *arg);
1274 void set_next_event ();
1275 void process_event (Event *);
1277 /* MIDI Machine Control */
1279 void deliver_mmc (MIDI::MachineControl::Command, jack_nframes_t);
1280 void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1281 void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1283 void spp_start (MIDI::Parser&);
1284 void spp_continue (MIDI::Parser&);
1285 void spp_stop (MIDI::Parser&);
1287 void mmc_deferred_play (MIDI::MachineControl &);
1288 void mmc_stop (MIDI::MachineControl &);
1289 void mmc_step (MIDI::MachineControl &, int);
1290 void mmc_pause (MIDI::MachineControl &);
1291 void mmc_record_pause (MIDI::MachineControl &);
1292 void mmc_record_strobe (MIDI::MachineControl &);
1293 void mmc_record_exit (MIDI::MachineControl &);
1294 void mmc_track_record_status (MIDI::MachineControl &,
1295 uint32_t track, bool enabled);
1296 void mmc_fast_forward (MIDI::MachineControl &);
1297 void mmc_rewind (MIDI::MachineControl &);
1298 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1299 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1300 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1302 struct timeval last_mmc_step;
1305 typedef sigc::slot<bool> MidiTimeoutCallback;
1306 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1308 MidiTimeoutList midi_timeouts;
1309 bool mmc_step_timeout ();
1311 MIDI::byte mmc_buffer[32];
1312 MIDI::byte mtc_msg[16];
1313 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1314 MIDI::byte midi_msg[16];
1315 jack_nframes_t outbound_mtc_smpte_frame;
1316 SMPTE_Time transmitting_smpte_time;
1317 int next_quarter_frame_to_send;
1319 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1320 jack_nframes_t _frames_per_hour;
1321 jack_nframes_t _smpte_frames_per_hour;
1322 jack_nframes_t _smpte_offset;
1323 bool _smpte_offset_negative;
1325 /* cache the most-recently requested time conversions.
1326 this helps when we have multiple clocks showing the
1327 same time (e.g. the transport frame)
1330 bool last_smpte_valid;
1331 jack_nframes_t last_smpte_when;
1332 SMPTE_Time last_smpte;
1334 int send_full_time_code ();
1335 int send_midi_time_code ();
1337 void send_full_time_code_in_another_thread ();
1338 void send_midi_time_code_in_another_thread ();
1339 void send_time_code_in_another_thread (bool full);
1340 void send_mmc_in_another_thread (MIDI::MachineControl::Command, jack_nframes_t frame = 0);
1344 typedef sigc::slot<int> FeedbackFunctionPtr;
1345 static void* _feedback_thread_work (void *);
1346 void* feedback_thread_work ();
1347 int feedback_generic_midi_function ();
1348 std::list<FeedbackFunctionPtr> feedback_functions;
1349 int active_feedback;
1350 int feedback_request_pipe[2];
1351 pthread_t feedback_thread;
1353 struct FeedbackRequest {
1361 int init_feedback();
1362 int start_feedback ();
1363 int stop_feedback ();
1364 void terminate_feedback ();
1365 int poke_feedback (FeedbackRequest::Type);
1367 jack_nframes_t adjust_apparent_position (jack_nframes_t frames);
1369 void reset_record_status ();
1371 int no_roll (jack_nframes_t nframes, jack_nframes_t offset);
1373 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1374 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1376 struct MIDIRequest {
1389 MIDI::MachineControl::Command mmc_cmd;
1390 jack_nframes_t locate_frame;
1392 // for SendMessage type
1395 MIDI::channel_t chan;
1397 MIDI::EventTwoBytes data;
1408 void *operator new(size_t ignored) {
1409 return pool.alloc ();
1412 void operator delete(void *ptr, size_t size) {
1417 static MultiAllocSingleReleasePool pool;
1420 PBD::Lock midi_lock;
1421 pthread_t midi_thread;
1422 int midi_request_pipe[2];
1423 atomic_t butler_active;
1424 RingBuffer<MIDIRequest*> midi_requests;
1426 int start_midi_thread ();
1427 void terminate_midi_thread ();
1428 void poke_midi_thread ();
1429 static void *_midi_thread_work (void *arg);
1430 void midi_thread_work ();
1431 void change_midi_ports ();
1432 int use_config_midi_ports ();
1434 bool waiting_to_start;
1436 void set_auto_loop (bool yn);
1437 void overwrite_some_buffers (DiskStream*);
1438 void flush_all_redirects ();
1439 void locate (jack_nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1440 void start_locate (jack_nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1441 void force_locate (jack_nframes_t frame, bool with_roll = false);
1442 void set_diskstream_speed (DiskStream*, float speed);
1443 void set_transport_speed (float speed, bool abort = false);
1444 void stop_transport (bool abort = false);
1445 void start_transport ();
1446 void actually_start_transport ();
1447 void realtime_stop (bool abort);
1448 void non_realtime_start_scrub ();
1449 void non_realtime_set_speed ();
1450 void non_realtime_stop (bool abort);
1451 void non_realtime_overwrite ();
1452 void non_realtime_buffer_fill ();
1453 void butler_transport_work ();
1454 void post_transport ();
1455 void engine_halted ();
1456 void xrun_recovery ();
1458 TempoMap *_tempo_map;
1459 void tempo_map_changed (Change);
1461 /* edit/mix groups */
1463 int load_route_groups (const XMLNode&, bool is_edit);
1464 int load_edit_groups (const XMLNode&);
1465 int load_mix_groups (const XMLNode&);
1468 list<RouteGroup *> edit_groups;
1469 list<RouteGroup *> mix_groups;
1473 DiskStreamList diskstreams;
1474 mutable PBD::NonBlockingRWLock diskstream_lock;
1475 uint32_t dstream_buffer_size;
1476 void add_diskstream (DiskStream*);
1477 int load_diskstreams (const XMLNode&);
1482 mutable PBD::NonBlockingRWLock route_lock;
1483 void add_route (Route*);
1485 int load_routes (const XMLNode&);
1486 Route* XMLRouteFactory (const XMLNode&);
1491 SoloModel _solo_model;
1492 bool solo_update_disabled;
1493 bool currently_soloing;
1495 void route_mute_changed (void *src);
1496 void route_solo_changed (void *src, Route *);
1497 void catch_up_on_solo ();
1498 void update_route_solo_state ();
1499 void modify_solo_mute (bool, bool);
1500 void strip_portname_for_solo (string& portname);
1502 /* REGION MANAGEMENT */
1504 mutable PBD::Lock region_lock;
1505 typedef map<ARDOUR::id_t,AudioRegion *> AudioRegionList;
1506 AudioRegionList audio_regions;
1508 void region_renamed (Region *);
1509 void region_changed (Change, Region *);
1510 void add_region (Region *);
1511 void remove_region (Region *);
1513 int load_regions (const XMLNode& node);
1517 mutable PBD::Lock source_lock;
1518 typedef std::map<id_t, Source *> SourceList;
1522 int load_sources (const XMLNode& node);
1523 XMLNode& get_sources_as_xml ();
1525 void remove_source (Source *);
1527 Source *XMLSourceFactory (const XMLNode&);
1531 mutable PBD::Lock playlist_lock;
1532 typedef set<Playlist *> PlaylistList;
1533 PlaylistList playlists;
1534 PlaylistList unused_playlists;
1536 int load_playlists (const XMLNode&);
1537 int load_unused_playlists (const XMLNode&);
1538 void remove_playlist (Playlist *);
1539 void track_playlist (Playlist *, bool);
1541 Playlist *playlist_factory (string name);
1542 Playlist *XMLPlaylistFactory (const XMLNode&);
1544 void playlist_length_changed (Playlist *);
1545 void diskstream_playlist_changed (DiskStream *);
1547 /* NAMED SELECTIONS */
1549 mutable PBD::Lock named_selection_lock;
1550 typedef set<NamedSelection *> NamedSelectionList;
1551 NamedSelectionList named_selections;
1553 int load_named_selections (const XMLNode&);
1555 NamedSelection *named_selection_factory (string name);
1556 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1558 /* DEFAULT FADE CURVES */
1560 float default_fade_steepness;
1561 float default_fade_msecs;
1565 Auditioner *auditioner;
1566 void set_audition (AudioRegion*);
1567 void non_realtime_set_audition ();
1568 AudioRegion *pending_audition_region;
1574 int flatten_one_track (AudioTrack&, jack_nframes_t start, jack_nframes_t cnt);
1576 /* INSERT AND SEND MANAGEMENT */
1578 slist<PortInsert *> _port_inserts;
1579 slist<PluginInsert *> _plugin_inserts;
1580 slist<Send *> _sends;
1582 uint32_t insert_cnt;
1584 void add_redirect (Redirect *);
1585 void remove_redirect (Redirect *);
1589 struct space_and_path {
1590 uint32_t blocks; /* 4kB blocks */
1598 struct space_and_path_ascending_cmp {
1599 bool operator() (space_and_path a, space_and_path b) {
1600 return a.blocks > b.blocks;
1604 void setup_raid_path (string path);
1606 vector<space_and_path> session_dirs;
1607 vector<space_and_path>::iterator last_rr_session_dir;
1608 uint32_t _total_free_4k_blocks;
1609 PBD::Lock space_lock;
1611 static const char* sound_dir_name;
1612 static const char* dead_sound_dir_name;
1613 static const char* peak_dir_name;
1615 string discover_best_sound_dir ();
1616 int ensure_sound_dir (string, string&);
1617 void refresh_disk_space ();
1619 atomic_t _playback_load;
1620 atomic_t _capture_load;
1621 atomic_t _playback_load_min;
1622 atomic_t _capture_load_min;
1624 /* I/O Connections */
1626 typedef list<Connection *> ConnectionList;
1627 mutable PBD::Lock connection_lock;
1628 ConnectionList _connections;
1629 int load_connections (const XMLNode&);
1631 int set_slave_source (SlaveSource, jack_nframes_t);
1633 void reverse_diskstream_buffers ();
1635 UndoHistory history;
1636 UndoCommand current_cmd;
1638 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1639 GlobalRouteMeterState get_global_route_metering ();
1641 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1642 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1644 void set_global_mute (GlobalRouteBooleanState s, void *src);
1645 void set_global_solo (GlobalRouteBooleanState s, void *src);
1646 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1648 void jack_timebase_callback (jack_transport_state_t, jack_nframes_t, jack_position_t*, int);
1649 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1650 void record_enable_change_all (bool yn);
1652 XMLNode& state(bool);
1657 jack_nframes_t start;
1658 jack_nframes_t duration;
1659 jack_nframes_t offset;
1662 Click (jack_nframes_t s, jack_nframes_t d, const Sample *b)
1663 : start (s), duration (d), data (b) { offset = 0; }
1665 void *operator new(size_t ignored) {
1666 return pool.alloc ();
1669 void operator delete(void *ptr, size_t size) {
1677 typedef list<Click*> Clicks;
1683 Sample* click_emphasis_data;
1684 jack_nframes_t click_length;
1685 jack_nframes_t click_emphasis_length;
1686 mutable PBD::NonBlockingRWLock click_lock;
1688 static const Sample default_click[];
1689 static const jack_nframes_t default_click_length;
1690 static const Sample default_click_emphasis[];
1691 static const jack_nframes_t default_click_emphasis_length;
1694 void setup_click_sounds (int which);
1695 void clear_clicks ();
1696 void click (jack_nframes_t start, jack_nframes_t nframes, jack_nframes_t offset);
1698 vector<Route*> master_outs;
1700 EditMode _edit_mode;
1701 EditMode pending_edit_mode;
1703 /* range playback */
1705 list<AudioRange> current_audio_range;
1707 void set_play_range (bool yn);
1708 void setup_auto_play ();
1716 AutoConnectOption input_auto_connect;
1717 AutoConnectOption output_auto_connect;
1719 gain_t* _gain_automation_buffer;
1720 pan_t** _pan_automation_buffer;
1721 void allocate_pan_automation_buffers (jack_nframes_t nframes, uint32_t howmany, bool force);
1722 uint32_t _npan_buffers;
1726 long _vst_callback (VSTPlugin*,
1733 /* number of hardware audio ports we're using,
1734 based on max (requested,available)
1737 uint32_t n_physical_outputs;
1738 uint32_t n_physical_inputs;
1740 void remove_pending_capture_state ();
1742 int find_all_sources (std::string path, std::set<std::string>& result);
1743 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1745 LayerModel layer_model;
1746 CrossfadeModel xfade_model;
1749 }; /* namespace ARDOUR */
1751 #endif /* __ardour_session_h__ */