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__
34 #include <glibmm/thread.h>
36 #include <pbd/error.h>
41 #include <midi++/types.h>
42 #include <midi++/mmc.h>
44 #include <pbd/stateful.h>
46 #include <ardour/ardour.h>
47 #include <ardour/configuration.h>
48 #include <ardour/location.h>
49 #include <ardour/gain.h>
50 #include <ardour/io.h>
70 class AudioDiskstream;
75 class AudioFileSource;
90 class ControlProtocolManager;
92 struct AudioExportSpecification;
101 class Session : public sigc::trackable, public Stateful
105 typedef std::pair<boost::shared_ptr<Route>,bool> RouteBooleanState;
106 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
107 typedef std::pair<boost::shared_ptr<Route>,MeterPoint> RouteMeterState;
108 typedef vector<RouteMeterState> GlobalRouteMeterState;
123 enum AutoConnectOption {
124 AutoConnectPhysical = 0x1,
125 AutoConnectMaster = 0x2
142 InputConfigurationChange,
146 /* only one of each of these events
147 can be queued at any one time
163 jack_nframes_t action_frame;
164 jack_nframes_t target_frame;
170 Session::SlaveSource slave;
174 list<AudioRange> audio_range;
175 list<MusicRange> music_range;
177 Event(Type t, Action a, jack_nframes_t when, jack_nframes_t where, float spd, bool yn = false)
181 target_frame (where),
185 void set_ptr (void* p) {
189 bool before (const Event& other) const {
190 return action_frame < other.action_frame;
193 bool after (const Event& other) const {
194 return action_frame > other.action_frame;
197 static bool compare (const Event *e1, const Event *e2) {
198 return e1->before (*e2);
201 void *operator new (size_t ignored) {
202 return pool.alloc ();
205 void operator delete(void *ptr, size_t size) {
209 static const jack_nframes_t Immediate = 0;
212 static MultiAllocSingleReleasePool pool;
215 /* creating from an XML file */
217 Session (AudioEngine&,
219 string snapshot_name,
220 string* mix_template = 0);
222 /* creating a new Session */
224 Session (AudioEngine&,
226 string snapshot_name,
227 AutoConnectOption input_auto_connect,
228 AutoConnectOption output_auto_connect,
229 uint32_t control_out_channels,
230 uint32_t master_out_channels,
231 uint32_t n_physical_in,
232 uint32_t n_physical_out,
233 jack_nframes_t initial_length);
238 static int find_session (string str, string& path, string& snapshot, bool& isnew);
240 string path() const { return _path; }
241 string name() const { return _name; }
242 string snap_name() const { return _current_snapshot_name; }
244 void set_snap_name ();
248 bool dirty() const { return _state_of_the_state & Dirty; }
249 sigc::signal<void> DirtyChanged;
251 std::string sound_dir () const;
252 std::string tape_dir () const;
253 std::string peak_dir () const;
254 std::string dead_sound_dir () const;
255 std::string automation_dir () const;
257 static string suffixed_search_path (std::string suffix, bool data);
258 static string control_protocol_path ();
259 static string template_path ();
260 static string template_dir ();
261 static void get_template_list (list<string>&);
263 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
264 static string peak_path_from_audio_path (string);
265 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
267 void process (jack_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 Diskstream* diskstream_by_id (const PBD::ID& id);
274 Diskstream* diskstream_by_name (string name);
276 bool have_captured() const { return _have_captured; }
278 void refill_all_diskstream_buffers ();
279 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
281 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
282 uint32_t n_diskstreams() const;
284 typedef list<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_remote_id (uint32_t id);
307 bool route_name_unique (string) const;
309 bool get_record_enabled() const {
310 return (record_status () >= Enabled);
313 RecordState record_status() const {
314 return (RecordState) g_atomic_int_get (&_record_status);
317 bool actively_recording () {
318 return record_status() == Recording;
321 bool record_enabling_legal () const;
322 void maybe_enable_record ();
323 void disable_record (bool rt_context, bool force = false);
324 void step_back_from_record ();
326 sigc::signal<void> going_away;
328 /* Proxy signal for region hidden changes */
330 sigc::signal<void,Region*> RegionHiddenChange;
332 /* Emitted when all i/o connections are complete */
334 sigc::signal<void> IOConnectionsComplete;
336 /* Record status signals */
338 sigc::signal<void> RecordStateChanged;
340 /* Transport mechanism signals */
342 sigc::signal<void> TransportStateChange; /* generic */
343 sigc::signal<void,jack_nframes_t> PositionChanged; /* sent after any non-sequential motion */
344 sigc::signal<void> DurationChanged;
345 sigc::signal<void> HaltOnXrun;
347 sigc::signal<void,boost::shared_ptr<Route> > RouteAdded;
348 sigc::signal<void,Diskstream*> DiskstreamAdded; // FIXME: make a shared_ptr
350 void request_roll ();
351 void request_bounded_roll (jack_nframes_t start, jack_nframes_t end);
352 void request_stop (bool abort = false);
353 void request_locate (jack_nframes_t frame, bool with_roll = false);
354 void request_auto_loop (bool yn);
355 jack_nframes_t last_transport_start() const { return _last_roll_location; }
356 void goto_end () { request_locate (end_location->start(), false);}
357 void goto_start () { request_locate (start_location->start(), false); }
358 void use_rf_shuttle_speed ();
359 void request_transport_speed (float speed);
360 void request_overwrite_buffer (Diskstream*);
361 void request_diskstream_speed (Diskstream&, float speed);
362 void request_input_change_handling ();
364 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
365 bool transport_locked () const;
369 int remove_region_from_region_list (Region&);
371 jack_nframes_t get_maximum_extent () const;
372 jack_nframes_t current_end_frame() const { return end_location->start(); }
373 jack_nframes_t current_start_frame() const { return start_location->start(); }
374 jack_nframes_t frame_rate() const { return _current_frame_rate; }
375 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
376 jack_nframes_t frames_per_hour() const { return _frames_per_hour; }
377 jack_nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
381 Locations *locations() { return &_locations; }
383 sigc::signal<void,Location*> auto_loop_location_changed;
384 sigc::signal<void,Location*> auto_punch_location_changed;
385 sigc::signal<void> locations_modified;
387 void set_auto_punch_location (Location *);
388 void set_auto_loop_location (Location *);
418 sigc::signal<void,ControlType> ControlChanged;
420 void set_auto_play (bool yn);
421 void set_auto_return (bool yn);
422 void set_auto_input (bool yn);
423 void reset_input_monitor_state ();
424 void set_input_auto_connect (bool yn);
425 void set_output_auto_connect (AutoConnectOption);
426 void set_punch_in (bool yn);
427 void set_punch_out (bool yn);
428 void set_send_mtc (bool yn);
429 void set_send_mmc (bool yn);
430 void set_mmc_control (bool yn);
431 void set_midi_feedback (bool yn);
432 void set_midi_control (bool yn);
433 void set_do_not_record_plugins (bool yn);
434 void set_crossfades_active (bool yn);
435 void set_seamless_loop (bool yn);
437 bool get_auto_play () const { return auto_play; }
438 bool get_auto_input () const { return auto_input; }
439 bool get_auto_loop () const { return auto_loop; }
440 bool get_seamless_loop () const { return seamless_loop; }
441 bool get_punch_in () const { return punch_in; }
442 bool get_punch_out () const { return punch_out; }
443 bool get_all_safe () const { return all_safe; }
444 bool get_auto_return () const { return auto_return; }
445 bool get_send_mtc () const;
446 bool get_send_mmc () const;
447 bool get_mmc_control () const;
448 bool get_midi_feedback () const;
449 bool get_midi_control () const;
450 bool get_do_not_record_plugins () const { return do_not_record_plugins; }
451 bool get_crossfades_active () const { return crossfades_active; }
453 bool get_input_auto_connect () const;
454 AutoConnectOption get_output_auto_connect () const { return output_auto_connect; }
462 void set_layer_model (LayerModel);
463 LayerModel get_layer_model () const { return layer_model; }
465 void set_xfade_model (CrossfadeModel);
466 CrossfadeModel get_xfade_model () const { return xfade_model; }
468 void add_event (jack_nframes_t action_frame, Event::Type type, jack_nframes_t target_frame = 0);
469 void remove_event (jack_nframes_t frame, Event::Type type);
470 void clear_events (Event::Type type);
472 jack_nframes_t get_block_size() const { return current_block_size; }
473 jack_nframes_t worst_output_latency () const { return _worst_output_latency; }
474 jack_nframes_t worst_input_latency () const { return _worst_input_latency; }
475 jack_nframes_t worst_track_latency () const { return _worst_track_latency; }
477 int save_state (string snapshot_name, bool pending = false);
478 int restore_state (string snapshot_name);
479 int save_template (string template_name);
481 static int rename_template (string old_name, string new_name);
483 static int delete_template (string name);
485 sigc::signal<void,string> StateSaved;
486 sigc::signal<void> StateReady;
488 vector<string*>* possible_states() const;
489 static vector<string*>* possible_states(string path);
491 XMLNode& get_state();
492 int set_state(const XMLNode& node);
493 XMLNode& get_template();
495 void add_instant_xml (XMLNode&, const std::string& dir);
497 enum StateOfTheState {
502 InitialConnecting = 0x8,
507 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
509 RouteGroup* add_edit_group (string);
510 RouteGroup* add_mix_group (string);
512 void remove_edit_group (RouteGroup&);
513 void remove_mix_group (RouteGroup&);
515 RouteGroup *mix_group_by_name (string);
516 RouteGroup *edit_group_by_name (string);
518 sigc::signal<void,RouteGroup*> edit_group_added;
519 sigc::signal<void,RouteGroup*> mix_group_added;
520 sigc::signal<void> edit_group_removed;
521 sigc::signal<void> mix_group_removed;
523 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
524 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
529 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
530 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
535 /* fundamental operations. duh. */
537 boost::shared_ptr<AudioTrack> new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal);
538 boost::shared_ptr<Route> new_audio_route (int input_channels, int output_channels);
540 void remove_route (boost::shared_ptr<Route>);
542 void resort_routes ();
543 void resort_routes_using (boost::shared_ptr<RouteList>);
545 AudioEngine &engine() { return _engine; };
547 /* configuration. there should really be accessors/mutators
551 float meter_hold () { return _meter_hold; }
552 void set_meter_hold (float);
553 sigc::signal<void> MeterHoldChanged;
555 float meter_falloff () { return _meter_falloff; }
556 void set_meter_falloff (float);
557 sigc::signal<void> MeterFalloffChanged;
561 string click_emphasis_sound;
563 bool click_requested;
564 jack_nframes_t over_length_short;
565 jack_nframes_t over_length_long;
566 bool send_midi_timecode;
567 bool send_midi_machine_control;
568 float shuttle_speed_factor;
569 float shuttle_speed_threshold;
571 float smpte_frames_per_second;
572 bool smpte_drop_frames;
578 jack_nframes_t transport_frame () const {return _transport_frame; }
579 jack_nframes_t audible_frame () const;
581 int set_smpte_type (float fps, bool drop_frames);
583 void bbt_time (jack_nframes_t when, BBT_Time&);
584 void smpte_to_sample( SMPTE::Time& smpte, jack_nframes_t& sample, bool use_offset, bool use_subframes ) const;
585 void sample_to_smpte( jack_nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
586 void smpte_time (SMPTE::Time &);
587 void smpte_time (jack_nframes_t when, SMPTE::Time&);
588 void smpte_time_subframes (jack_nframes_t when, SMPTE::Time&);
590 void smpte_duration (jack_nframes_t, SMPTE::Time&) const;
591 void smpte_duration_string (char *, jack_nframes_t) const;
593 void set_smpte_offset (jack_nframes_t);
594 jack_nframes_t smpte_offset () const { return _smpte_offset; }
595 void set_smpte_offset_negative (bool);
596 bool smpte_offset_negative () const { return _smpte_offset_negative; }
598 jack_nframes_t convert_to_frames_at (jack_nframes_t position, AnyTime&);
600 static sigc::signal<void> SMPTEOffsetChanged;
601 sigc::signal<void> SMPTETypeChanged;
603 void request_slave_source (SlaveSource, jack_nframes_t pos = 0);
604 SlaveSource slave_source() const { return _slave_type; }
605 bool synced_to_jack() const { return _slave_type == JACK; }
606 float transport_speed() const { return _transport_speed; }
607 bool transport_stopped() const { return _transport_speed == 0.0f; }
608 bool transport_rolling() const { return _transport_speed != 0.0f; }
610 int jack_slave_sync (jack_nframes_t);
612 TempoMap& tempo_map() { return *_tempo_map; }
616 sigc::signal<void,AudioRegion *> AudioRegionAdded;
617 sigc::signal<void,AudioRegion *> AudioRegionRemoved;
619 int region_name (string& result, string base = string(""), bool newlevel = false) const;
620 string new_region_name (string);
621 string path_from_region_name (string name, string identifier);
623 AudioRegion* find_whole_file_parent (AudioRegion&);
624 void find_equivalent_playlist_regions (Region&, std::vector<Region*>& result);
626 AudioRegion *XMLRegionFactory (const XMLNode&, bool full);
628 template<class T> void foreach_audio_region (T *obj, void (T::*func)(AudioRegion *));
630 /* source management */
632 struct import_status : public InterThreadInfo {
638 volatile bool freeze;
642 std::vector<AudioRegion*> new_regions;
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_audio_source (AudioSource *);
657 void remove_source (Source *);
658 int cleanup_audio_file_source (AudioFileSource&);
660 struct cleanup_report {
661 vector<string> paths;
665 int cleanup_sources (cleanup_report&);
666 int cleanup_trash_sources (cleanup_report&);
668 int destroy_region (Region*);
669 int destroy_regions (list<Region*>);
671 int remove_last_capture ();
673 /* handlers should return -1 for "stop cleanup", 0 for
674 "yes, delete this playlist" and 1 for "no, don't delete
678 sigc::signal<int,ARDOUR::Playlist*> AskAboutPlaylistDeletion;
681 /* handlers should return !0 for use pending state, 0 for
685 static sigc::signal<int> AskAboutPendingState;
687 sigc::signal<void,Source *> SourceAdded;
688 sigc::signal<void,Source *> SourceRemoved;
690 AudioFileSource *create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
692 Source *source_by_id (const PBD::ID&);
694 /* playlist management */
696 Playlist* playlist_by_name (string name);
697 void add_playlist (Playlist *);
698 sigc::signal<void,Playlist*> PlaylistAdded;
699 sigc::signal<void,Playlist*> PlaylistRemoved;
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 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
724 void audition_playlist ();
725 void audition_region (Region&);
726 void cancel_audition ();
727 bool is_auditioning () const;
729 sigc::signal<void,bool> AuditionActive;
731 /* flattening stuff */
733 int write_one_audio_track (AudioTrack&, jack_nframes_t start, jack_nframes_t cnt, bool overwrite, vector<AudioSource*>&,
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 boost::shared_ptr<IO> control_out() const { return _control_out; }
763 boost::shared_ptr<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);
809 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
813 void start_scrub (jack_nframes_t where);
815 void set_scrub_speed (float);
816 jack_nframes_t scrub_buffer_size() const;
817 sigc::signal<void> ScrubReady;
819 /* History (for editors, mixers, UIs etc.) */
821 void undo (uint32_t n) {
824 void redo (uint32_t n) {
828 uint32_t undo_depth() const { return history.undo_depth(); }
829 uint32_t redo_depth() const { return history.redo_depth(); }
830 string next_undo() const { return history.next_undo(); }
831 string next_redo() const { return history.next_redo(); }
833 void begin_reversible_command (string cmd_name, UndoAction *private_undo = 0);
834 void commit_reversible_command (UndoAction* private_redo = 0);
836 void add_undo (const UndoAction& ua) {
837 current_cmd.add_undo (ua);
839 void add_redo (const UndoAction& ua) {
840 current_cmd.add_redo (ua);
842 void add_redo_no_execute (const UndoAction& ua) {
843 current_cmd.add_redo_no_execute (ua);
846 UndoAction global_solo_memento (void *src);
847 UndoAction global_mute_memento (void *src);
848 UndoAction global_record_enable_memento (void *src);
849 UndoAction global_metering_memento (void *src);
853 void set_edit_mode (EditMode);
854 EditMode get_edit_mode () const { return _edit_mode; }
858 boost::shared_ptr<IO> click_io() { return _click_io; }
859 void set_clicking (bool yn);
860 bool get_clicking() const;
862 void set_click_sound (string path);
863 void set_click_emphasis_sound (string path);
867 struct TimeStretchRequest {
868 ARDOUR::AudioRegion* region;
869 float fraction; /* session: read ; GUI: write */
870 float progress; /* session: write ; GUI: read */
871 bool running; /* read/write */
872 bool quick_seek; /* GUI: write */
873 bool antialias; /* GUI: write */
875 TimeStretchRequest () : region (0) {}
878 AudioRegion* tempoize_region (TimeStretchRequest&);
880 string raid_path() const;
881 void set_raid_path(string);
883 /* need to call this whenever we change native file formats */
885 void reset_native_file_format();
887 /* disk, buffer loads */
889 uint32_t playback_load ();
890 uint32_t capture_load ();
891 uint32_t playback_load_min ();
892 uint32_t capture_load_min ();
894 void reset_playback_load_min ();
895 void reset_capture_load_min ();
897 float read_data_rate () const;
898 float write_data_rate () const;
902 void set_audio_range (list<AudioRange>&);
903 void set_music_range (list<MusicRange>&);
905 void request_play_range (bool yn);
906 bool get_play_range () const { return _play_range; }
909 typedef vector<string> FavoriteDirs;
911 static int read_favorite_dirs (FavoriteDirs&);
913 static int write_favorite_dirs (FavoriteDirs&);
917 static const char* template_suffix() { return _template_suffix; }
918 static const char* statefile_suffix() { return _statefile_suffix; }
919 static const char* pending_suffix() { return _pending_suffix; }
921 /* buffers for gain and pan */
923 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
924 pan_t** pan_automation_buffer() const { return _pan_automation_buffer; }
926 /* buffers for conversion */
933 char * conversion_buffer(RunContext context) { return _conversion_buffers[context]; }
937 static long vst_callback (AEffect* effect,
944 typedef float (*compute_peak_t) (Sample *, jack_nframes_t, float);
945 typedef void (*apply_gain_to_buffer_t) (Sample *, jack_nframes_t, float);
946 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, jack_nframes_t, float);
947 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, jack_nframes_t);
949 static compute_peak_t compute_peak;
950 static apply_gain_to_buffer_t apply_gain_to_buffer;
951 static mix_buffers_with_gain_t mix_buffers_with_gain;
952 static mix_buffers_no_gain_t mix_buffers_no_gain;
954 static sigc::signal<void> SendFeedback;
958 PBD::Controllable* controllable_by_id (const PBD::ID&);
961 friend class AudioEngine;
962 void set_block_size (jack_nframes_t nframes);
963 void set_frame_rate (jack_nframes_t nframes);
966 friend class Diskstream;
968 void wait_till_butler_finished();
972 void schedule_curve_reallocation ();
973 void update_latency_compensation (bool, bool);
976 int create (bool& new_session, string* mix_template, jack_nframes_t initial_length);
978 static const char* _template_suffix;
979 static const char* _statefile_suffix;
980 static const char* _pending_suffix;
983 PendingDeclickIn = 0x1,
984 PendingDeclickOut = 0x2,
985 StopPendingCapture = 0x4,
986 AutoReturning = 0x10,
987 PendingLocate = 0x20,
988 PendingSetLoop = 0x40
991 /* stuff used in process() should be close together to
995 typedef void (Session::*process_function_type)(jack_nframes_t);
997 AudioEngine &_engine;
998 mutable gint processing_prohibited;
999 process_function_type process_function;
1000 process_function_type last_process_function;
1001 jack_nframes_t _current_frame_rate;
1002 int transport_sub_state;
1003 mutable gint _record_status;
1004 jack_nframes_t _transport_frame;
1005 Location* end_location;
1006 Location* start_location;
1008 SlaveSource _slave_type;
1009 volatile float _transport_speed;
1010 volatile float _desired_transport_speed;
1011 float _last_transport_speed;
1012 jack_nframes_t _last_slave_transport_frame;
1013 jack_nframes_t maximum_output_latency;
1014 jack_nframes_t last_stop_frame;
1015 vector<Sample *> _passthru_buffers;
1016 vector<Sample *> _silent_buffers;
1017 vector<Sample *> _send_buffers;
1018 map<RunContext,char*> _conversion_buffers;
1019 jack_nframes_t current_block_size;
1020 jack_nframes_t _worst_output_latency;
1021 jack_nframes_t _worst_input_latency;
1022 jack_nframes_t _worst_track_latency;
1023 bool _have_captured;
1025 float _meter_falloff;
1026 bool _end_location_is_free;
1028 void set_worst_io_latencies ();
1029 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1030 set_worst_io_latencies ();
1033 void update_latency_compensation_proxy (void* ignored);
1035 void ensure_passthru_buffers (uint32_t howmany);
1037 void process_scrub (jack_nframes_t);
1038 void process_without_events (jack_nframes_t);
1039 void process_with_events (jack_nframes_t);
1040 void process_audition (jack_nframes_t);
1041 int process_export (jack_nframes_t, ARDOUR::AudioExportSpecification*);
1043 /* slave tracking */
1045 static const int delta_accumulator_size = 25;
1046 int delta_accumulator_cnt;
1047 long delta_accumulator[delta_accumulator_size];
1048 long average_slave_delta;
1050 bool have_first_delta_accumulator;
1058 SlaveState slave_state;
1059 jack_nframes_t slave_wait_end;
1061 void reset_slave_state ();
1062 bool follow_slave (jack_nframes_t, jack_nframes_t);
1065 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1067 void prepare_diskstreams ();
1068 void commit_diskstreams (jack_nframes_t, bool& session_requires_butler);
1069 int process_routes (jack_nframes_t, jack_nframes_t);
1070 int silent_process_routes (jack_nframes_t, jack_nframes_t);
1072 bool get_rec_monitors_input () {
1073 if (actively_recording()) {
1084 int get_transport_declick_required () {
1086 if (transport_sub_state & PendingDeclickIn) {
1087 transport_sub_state &= ~PendingDeclickIn;
1089 } else if (transport_sub_state & PendingDeclickOut) {
1096 bool maybe_stop (jack_nframes_t limit) {
1097 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1104 void check_declick_out ();
1106 MIDI::MachineControl* mmc;
1107 MIDI::Port* _mmc_port;
1108 MIDI::Port* _mtc_port;
1109 MIDI::Port* _midi_port;
1112 bool do_not_record_plugins;
1122 jack_nframes_t last_loopend;
1124 bool crossfades_active;
1133 RingBuffer<Event*> pending_events;
1136 void when_engine_running ();
1137 sigc::connection first_time_running;
1138 void graph_reordered ();
1140 string _current_snapshot_name;
1142 XMLTree* state_tree;
1143 bool state_was_pending;
1144 StateOfTheState _state_of_the_state;
1147 int load_options (const XMLNode&);
1148 XMLNode& get_options () const;
1149 int load_state (string snapshot_name);
1151 jack_nframes_t _last_roll_location;
1152 jack_nframes_t _last_record_location;
1153 bool pending_locate_roll;
1154 jack_nframes_t pending_locate_frame;
1156 bool pending_locate_flush;
1158 bool pending_auto_loop;
1160 Sample* butler_mixdown_buffer;
1161 float* butler_gain_buffer;
1162 pthread_t butler_thread;
1163 Glib::Mutex butler_request_lock;
1164 Glib::Cond butler_paused;
1165 bool butler_should_run;
1166 mutable gint butler_should_do_transport_work;
1167 int butler_request_pipe[2];
1169 struct ButlerRequest {
1178 enum PostTransportWork {
1179 PostTransportStop = 0x1,
1180 PostTransportDisableRecord = 0x2,
1181 PostTransportPosition = 0x8,
1182 PostTransportDidRecord = 0x20,
1183 PostTransportDuration = 0x40,
1184 PostTransportLocate = 0x80,
1185 PostTransportRoll = 0x200,
1186 PostTransportAbort = 0x800,
1187 PostTransportOverWrite = 0x1000,
1188 PostTransportSpeed = 0x2000,
1189 PostTransportAudition = 0x4000,
1190 PostTransportScrub = 0x8000,
1191 PostTransportReverse = 0x10000,
1192 PostTransportInputChange = 0x20000,
1193 PostTransportCurveRealloc = 0x40000
1196 static const PostTransportWork ProcessCannotProceedMask =
1197 PostTransportWork (PostTransportInputChange|
1199 PostTransportReverse|
1200 PostTransportCurveRealloc|
1202 PostTransportAudition|
1203 PostTransportLocate|
1206 PostTransportWork post_transport_work;
1208 void summon_butler ();
1209 void schedule_butler_transport_work ();
1210 int start_butler_thread ();
1211 void terminate_butler_thread ();
1212 static void *_butler_thread_work (void *arg);
1213 void* butler_thread_work ();
1215 uint32_t cumulative_rf_motion;
1218 void set_rf_speed (float speed);
1219 void reset_rf_scale (jack_nframes_t frames_moved);
1221 Locations _locations;
1222 void locations_changed ();
1223 void locations_added (Location*);
1224 void handle_locations_changed (Locations::LocationList&);
1226 sigc::connection auto_punch_start_changed_connection;
1227 sigc::connection auto_punch_end_changed_connection;
1228 sigc::connection auto_punch_changed_connection;
1229 void auto_punch_start_changed (Location *);
1230 void auto_punch_end_changed (Location *);
1231 void auto_punch_changed (Location *);
1233 sigc::connection auto_loop_start_changed_connection;
1234 sigc::connection auto_loop_end_changed_connection;
1235 sigc::connection auto_loop_changed_connection;
1236 void auto_loop_changed (Location *);
1238 typedef list<Event *> Events;
1240 Events immediate_events;
1241 Events::iterator next_event;
1243 /* there can only ever be one of each of these */
1245 Event *auto_loop_event;
1246 Event *punch_out_event;
1247 Event *punch_in_event;
1251 void dump_events () const;
1252 void queue_event (Event *ev);
1253 void merge_event (Event*);
1254 void replace_event (Event::Type, jack_nframes_t action_frame, jack_nframes_t target = 0);
1255 bool _replace_event (Event*);
1256 bool _remove_event (Event *);
1257 void _clear_event_type (Event::Type);
1259 void first_stage_init (string path, string snapshot_name);
1260 int second_stage_init (bool new_tracks);
1261 void find_current_end ();
1262 void remove_empty_sounds ();
1264 void setup_midi_control ();
1265 int midi_read (MIDI::Port *);
1267 void enable_record ();
1269 void increment_transport_position (uint32_t val) {
1270 if (max_frames - val < _transport_frame) {
1271 _transport_frame = max_frames;
1273 _transport_frame += val;
1277 void decrement_transport_position (uint32_t val) {
1278 if (val < _transport_frame) {
1279 _transport_frame -= val;
1281 _transport_frame = 0;
1285 void post_transport_motion ();
1286 static void *session_loader_thread (void *arg);
1290 void set_next_event ();
1291 void process_event (Event *);
1293 /* MIDI Machine Control */
1295 void deliver_mmc (MIDI::MachineControl::Command, jack_nframes_t);
1296 void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1297 void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1299 void spp_start (MIDI::Parser&);
1300 void spp_continue (MIDI::Parser&);
1301 void spp_stop (MIDI::Parser&);
1303 void mmc_deferred_play (MIDI::MachineControl &);
1304 void mmc_stop (MIDI::MachineControl &);
1305 void mmc_step (MIDI::MachineControl &, int);
1306 void mmc_pause (MIDI::MachineControl &);
1307 void mmc_record_pause (MIDI::MachineControl &);
1308 void mmc_record_strobe (MIDI::MachineControl &);
1309 void mmc_record_exit (MIDI::MachineControl &);
1310 void mmc_track_record_status (MIDI::MachineControl &,
1311 uint32_t track, bool enabled);
1312 void mmc_fast_forward (MIDI::MachineControl &);
1313 void mmc_rewind (MIDI::MachineControl &);
1314 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1315 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1316 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1318 struct timeval last_mmc_step;
1321 typedef sigc::slot<bool> MidiTimeoutCallback;
1322 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1324 MidiTimeoutList midi_timeouts;
1325 bool mmc_step_timeout ();
1327 MIDI::byte mmc_buffer[32];
1328 MIDI::byte mtc_msg[16];
1329 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1330 MIDI::byte midi_msg[16];
1331 jack_nframes_t outbound_mtc_smpte_frame;
1332 SMPTE::Time transmitting_smpte_time;
1333 int next_quarter_frame_to_send;
1335 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1336 jack_nframes_t _frames_per_hour;
1337 jack_nframes_t _smpte_frames_per_hour;
1338 jack_nframes_t _smpte_offset;
1339 bool _smpte_offset_negative;
1341 /* cache the most-recently requested time conversions.
1342 this helps when we have multiple clocks showing the
1343 same time (e.g. the transport frame)
1346 bool last_smpte_valid;
1347 jack_nframes_t last_smpte_when;
1348 SMPTE::Time last_smpte;
1350 int send_full_time_code ();
1351 int send_midi_time_code ();
1353 void send_full_time_code_in_another_thread ();
1354 void send_midi_time_code_in_another_thread ();
1355 void send_time_code_in_another_thread (bool full);
1356 void send_mmc_in_another_thread (MIDI::MachineControl::Command, jack_nframes_t frame = 0);
1358 jack_nframes_t adjust_apparent_position (jack_nframes_t frames);
1360 void reset_record_status ();
1362 int no_roll (jack_nframes_t nframes, jack_nframes_t offset);
1364 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1365 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1367 struct MIDIRequest {
1380 MIDI::MachineControl::Command mmc_cmd;
1381 jack_nframes_t locate_frame;
1383 // for SendMessage type
1386 MIDI::channel_t chan;
1388 MIDI::EventTwoBytes data;
1399 void *operator new(size_t ignored) {
1400 return pool.alloc ();
1403 void operator delete(void *ptr, size_t size) {
1408 static MultiAllocSingleReleasePool pool;
1411 Glib::Mutex midi_lock;
1412 pthread_t midi_thread;
1413 int midi_request_pipe[2];
1414 mutable gint butler_active;
1415 RingBuffer<MIDIRequest*> midi_requests;
1417 int start_midi_thread ();
1418 void terminate_midi_thread ();
1419 void poke_midi_thread ();
1420 static void *_midi_thread_work (void *arg);
1421 void midi_thread_work ();
1422 void change_midi_ports ();
1423 int use_config_midi_ports ();
1425 bool waiting_to_start;
1427 void set_auto_loop (bool yn);
1428 void overwrite_some_buffers (Diskstream*);
1429 void flush_all_redirects ();
1430 void locate (jack_nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1431 void start_locate (jack_nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1432 void force_locate (jack_nframes_t frame, bool with_roll = false);
1433 void set_diskstream_speed (Diskstream*, float speed);
1434 void set_transport_speed (float speed, bool abort = false);
1435 void stop_transport (bool abort = false);
1436 void start_transport ();
1437 void actually_start_transport ();
1438 void realtime_stop (bool abort);
1439 void non_realtime_start_scrub ();
1440 void non_realtime_set_speed ();
1441 void non_realtime_stop (bool abort);
1442 void non_realtime_overwrite ();
1443 void non_realtime_buffer_fill ();
1444 void butler_transport_work ();
1445 void post_transport ();
1446 void engine_halted ();
1447 void xrun_recovery ();
1449 TempoMap *_tempo_map;
1450 void tempo_map_changed (Change);
1452 /* edit/mix groups */
1454 int load_route_groups (const XMLNode&, bool is_edit);
1455 int load_edit_groups (const XMLNode&);
1456 int load_mix_groups (const XMLNode&);
1459 list<RouteGroup *> edit_groups;
1460 list<RouteGroup *> mix_groups;
1464 DiskstreamList diskstreams;
1465 mutable Glib::RWLock diskstream_lock;
1466 uint32_t dstream_buffer_size;
1467 void add_diskstream (Diskstream*);
1468 int load_diskstreams (const XMLNode&);
1472 SerializedRCUManager<RouteList> routes;
1474 void add_route (boost::shared_ptr<Route>);
1475 uint32_t destructive_index;
1477 int load_routes (const XMLNode&);
1478 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1483 SoloModel _solo_model;
1484 bool solo_update_disabled;
1485 bool currently_soloing;
1487 void route_mute_changed (void *src);
1488 void route_solo_changed (void *src, boost::shared_ptr<Route>);
1489 void catch_up_on_solo ();
1490 void update_route_solo_state ();
1491 void modify_solo_mute (bool, bool);
1492 void strip_portname_for_solo (string& portname);
1494 /* REGION MANAGEMENT */
1496 mutable Glib::Mutex region_lock;
1497 typedef map<PBD::ID,AudioRegion *> AudioRegionList;
1498 AudioRegionList audio_regions;
1500 void region_renamed (Region *);
1501 void region_changed (Change, Region *);
1502 void add_region (Region *);
1503 void remove_region (Region *);
1505 int load_regions (const XMLNode& node);
1509 mutable Glib::Mutex audio_source_lock;
1510 typedef std::map<PBD::ID,AudioSource *> AudioSourceList;
1512 AudioSourceList audio_sources;
1514 int load_sources (const XMLNode& node);
1515 XMLNode& get_sources_as_xml ();
1517 Source *XMLSourceFactory (const XMLNode&);
1521 mutable Glib::Mutex playlist_lock;
1522 typedef set<Playlist *> PlaylistList;
1523 PlaylistList playlists;
1524 PlaylistList unused_playlists;
1526 int load_playlists (const XMLNode&);
1527 int load_unused_playlists (const XMLNode&);
1528 void remove_playlist (Playlist *);
1529 void track_playlist (Playlist *, bool);
1531 Playlist *playlist_factory (string name);
1532 Playlist *XMLPlaylistFactory (const XMLNode&);
1534 void playlist_length_changed (Playlist *);
1535 void diskstream_playlist_changed (Diskstream *);
1537 /* NAMED SELECTIONS */
1539 mutable Glib::Mutex named_selection_lock;
1540 typedef set<NamedSelection *> NamedSelectionList;
1541 NamedSelectionList named_selections;
1543 int load_named_selections (const XMLNode&);
1545 NamedSelection *named_selection_factory (string name);
1546 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1548 /* DEFAULT FADE CURVES */
1550 float default_fade_steepness;
1551 float default_fade_msecs;
1555 boost::shared_ptr<Auditioner> auditioner;
1556 void set_audition (AudioRegion*);
1557 void non_realtime_set_audition ();
1558 AudioRegion *pending_audition_region;
1564 int flatten_one_track (AudioTrack&, jack_nframes_t start, jack_nframes_t cnt);
1566 /* INSERT AND SEND MANAGEMENT */
1568 list<PortInsert *> _port_inserts;
1569 list<PluginInsert *> _plugin_inserts;
1570 list<Send *> _sends;
1572 uint32_t insert_cnt;
1574 void add_redirect (Redirect *);
1575 void remove_redirect (Redirect *);
1579 struct space_and_path {
1580 uint32_t blocks; /* 4kB blocks */
1588 struct space_and_path_ascending_cmp {
1589 bool operator() (space_and_path a, space_and_path b) {
1590 return a.blocks > b.blocks;
1594 void setup_raid_path (string path);
1596 vector<space_and_path> session_dirs;
1597 vector<space_and_path>::iterator last_rr_session_dir;
1598 uint32_t _total_free_4k_blocks;
1599 Glib::Mutex space_lock;
1601 static const char* sound_dir_name;
1602 static const char* tape_dir_name;
1603 static const char* dead_sound_dir_name;
1604 static const char* peak_dir_name;
1606 string discover_best_sound_dir (bool destructive = false);
1607 int ensure_sound_dir (string, string&);
1608 void refresh_disk_space ();
1610 mutable gint _playback_load;
1611 mutable gint _capture_load;
1612 mutable gint _playback_load_min;
1613 mutable gint _capture_load_min;
1615 /* I/O Connections */
1617 typedef list<Connection *> ConnectionList;
1618 mutable Glib::Mutex connection_lock;
1619 ConnectionList _connections;
1620 int load_connections (const XMLNode&);
1622 int set_slave_source (SlaveSource, jack_nframes_t);
1624 void reverse_diskstream_buffers ();
1626 UndoHistory history;
1627 UndoCommand current_cmd;
1629 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1630 GlobalRouteMeterState get_global_route_metering ();
1632 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1633 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1635 void set_global_mute (GlobalRouteBooleanState s, void *src);
1636 void set_global_solo (GlobalRouteBooleanState s, void *src);
1637 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1639 void jack_timebase_callback (jack_transport_state_t, jack_nframes_t, jack_position_t*, int);
1640 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1641 void record_enable_change_all (bool yn);
1643 XMLNode& state(bool);
1648 jack_nframes_t start;
1649 jack_nframes_t duration;
1650 jack_nframes_t offset;
1653 Click (jack_nframes_t s, jack_nframes_t d, const Sample *b)
1654 : start (s), duration (d), data (b) { offset = 0; }
1656 void *operator new(size_t ignored) {
1657 return pool.alloc ();
1660 void operator delete(void *ptr, size_t size) {
1668 typedef list<Click*> Clicks;
1672 boost::shared_ptr<IO> _click_io;
1674 Sample* click_emphasis_data;
1675 jack_nframes_t click_length;
1676 jack_nframes_t click_emphasis_length;
1677 mutable Glib::RWLock click_lock;
1679 static const Sample default_click[];
1680 static const jack_nframes_t default_click_length;
1681 static const Sample default_click_emphasis[];
1682 static const jack_nframes_t default_click_emphasis_length;
1685 void setup_click_sounds (int which);
1686 void clear_clicks ();
1687 void click (jack_nframes_t start, jack_nframes_t nframes, jack_nframes_t offset);
1689 vector<Route*> master_outs;
1691 EditMode _edit_mode;
1692 EditMode pending_edit_mode;
1694 /* range playback */
1696 list<AudioRange> current_audio_range;
1698 void set_play_range (bool yn);
1699 void setup_auto_play ();
1704 boost::shared_ptr<IO> _master_out;
1705 boost::shared_ptr<IO> _control_out;
1707 AutoConnectOption input_auto_connect;
1708 AutoConnectOption output_auto_connect;
1710 gain_t* _gain_automation_buffer;
1711 pan_t** _pan_automation_buffer;
1712 void allocate_pan_automation_buffers (jack_nframes_t nframes, uint32_t howmany, bool force);
1713 uint32_t _npan_buffers;
1717 long _vst_callback (VSTPlugin*,
1724 /* number of hardware audio ports we're using,
1725 based on max (requested,available)
1728 uint32_t n_physical_outputs;
1729 uint32_t n_physical_inputs;
1731 void remove_pending_capture_state ();
1733 int find_all_sources (std::string path, std::set<std::string>& result);
1734 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1736 LayerModel layer_model;
1737 CrossfadeModel xfade_model;
1739 typedef std::list<PBD::Controllable*> Controllables;
1740 Glib::Mutex controllables_lock;
1741 Controllables controllables;
1743 void add_controllable (PBD::Controllable*);
1744 void remove_controllable (PBD::Controllable*);
1747 } // namespace ARDOUR
1749 #endif /* __ardour_session_h__ */