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;
241 void set_snap_name ();
245 bool dirty() const { return _state_of_the_state & Dirty; }
246 void set_deletion_in_progress ();
247 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
248 sigc::signal<void> DirtyChanged;
250 std::string sound_dir (bool with_path = true) const;
251 std::string peak_dir () const;
252 std::string dead_sound_dir () const;
253 std::string automation_dir () const;
255 string peak_path_from_audio_path (string) 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 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
266 void process (nframes_t nframes);
268 vector<Sample*>& get_passthru_buffers() { return _passthru_buffers; }
269 vector<Sample*>& get_silent_buffers (uint32_t howmany);
270 vector<Sample*>& get_send_buffers () { return _send_buffers; }
272 void add_diskstream (boost::shared_ptr<Diskstream>);
273 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
274 boost::shared_ptr<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 std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
285 typedef std::list<boost::shared_ptr<Route> > RouteList;
287 boost::shared_ptr<RouteList> get_routes() const {
288 return routes.reader ();
291 uint32_t nroutes() const { return routes.reader()->size(); }
292 uint32_t ntracks () const;
293 uint32_t nbusses () const;
295 struct RoutePublicOrderSorter {
296 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
299 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
300 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
301 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
303 boost::shared_ptr<Route> route_by_name (string);
304 boost::shared_ptr<Route> route_by_id (PBD::ID);
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 /* Proxy signal for region hidden changes */
328 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
330 /* Emitted when all i/o connections are complete */
332 sigc::signal<void> IOConnectionsComplete;
334 /* Record status signals */
336 sigc::signal<void> RecordStateChanged;
338 /* Transport mechanism signals */
340 sigc::signal<void> TransportStateChange; /* generic */
341 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
342 sigc::signal<void> DurationChanged;
343 sigc::signal<void> HaltOnXrun;
345 sigc::signal<void,RouteList&> RouteAdded;
347 void request_roll ();
348 void request_bounded_roll (nframes_t start, nframes_t end);
349 void request_stop (bool abort = false);
350 void request_locate (nframes_t frame, bool with_roll = false);
352 void request_play_loop (bool yn);
353 bool get_play_loop () const { return play_loop; }
355 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 set_session_start (nframes_t start) { start_location->set_start(start); }
359 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
360 void use_rf_shuttle_speed ();
361 void request_transport_speed (float speed);
362 void request_overwrite_buffer (Diskstream*);
363 void request_diskstream_speed (Diskstream&, float speed);
364 void request_input_change_handling ();
366 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
367 bool transport_locked () const;
371 int remove_region_from_region_list (boost::shared_ptr<Region>);
373 nframes_t get_maximum_extent () const;
374 nframes_t current_end_frame() const { return end_location->start(); }
375 nframes_t current_start_frame() const { return start_location->start(); }
376 nframes_t frame_rate() const { return _current_frame_rate; }
377 nframes_t frames_per_hour() const { return _frames_per_hour; }
379 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
380 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
382 float smpte_frames_per_second() const;
383 bool smpte_drop_frames() const;
387 Locations *locations() { return &_locations; }
389 sigc::signal<void,Location*> auto_loop_location_changed;
390 sigc::signal<void,Location*> auto_punch_location_changed;
391 sigc::signal<void> locations_modified;
393 void set_auto_punch_location (Location *);
394 void set_auto_loop_location (Location *);
395 int location_name(string& result, string base = string(""));
397 void reset_input_monitor_state ();
399 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
400 void remove_event (nframes_t frame, Event::Type type);
401 void clear_events (Event::Type type);
403 nframes_t get_block_size() const { return current_block_size; }
404 nframes_t worst_output_latency () const { return _worst_output_latency; }
405 nframes_t worst_input_latency () const { return _worst_input_latency; }
406 nframes_t worst_track_latency () const { return _worst_track_latency; }
408 int save_state (string snapshot_name, bool pending = false);
409 int restore_state (string snapshot_name);
410 int save_template (string template_name);
411 int save_history (string snapshot_name = "");
412 int restore_history (string snapshot_name);
414 static int rename_template (string old_name, string new_name);
416 static int delete_template (string name);
418 sigc::signal<void,string> StateSaved;
419 sigc::signal<void> StateReady;
421 vector<string*>* possible_states() const;
422 static vector<string*>* possible_states(string path);
424 XMLNode& get_state();
425 int set_state(const XMLNode& node); // not idempotent
426 XMLNode& get_template();
428 void add_instant_xml (XMLNode&, const std::string& dir);
430 enum StateOfTheState {
435 InitialConnecting = 0x8,
440 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
442 RouteGroup* add_edit_group (string);
443 RouteGroup* add_mix_group (string);
445 void remove_edit_group (RouteGroup&);
446 void remove_mix_group (RouteGroup&);
448 RouteGroup *mix_group_by_name (string);
449 RouteGroup *edit_group_by_name (string);
451 sigc::signal<void,RouteGroup*> edit_group_added;
452 sigc::signal<void,RouteGroup*> mix_group_added;
453 sigc::signal<void> edit_group_removed;
454 sigc::signal<void> mix_group_removed;
456 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
457 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
462 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
463 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
468 /* fundamental operations. duh. */
470 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
471 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
473 void remove_route (boost::shared_ptr<Route>);
475 void resort_routes ();
476 void resort_routes_using (boost::shared_ptr<RouteList>);
478 AudioEngine &engine() { return _engine; };
485 nframes_t transport_frame () const {return _transport_frame; }
486 nframes_t audible_frame () const;
500 int set_smpte_format (SmpteFormat);
501 void sync_time_vars();
503 void bbt_time (nframes_t when, BBT_Time&);
504 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
505 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
506 void smpte_time (SMPTE::Time &);
507 void smpte_time (nframes_t when, SMPTE::Time&);
508 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
510 void smpte_duration (nframes_t, SMPTE::Time&) const;
511 void smpte_duration_string (char *, nframes_t) const;
513 void set_smpte_offset (nframes_t);
514 nframes_t smpte_offset () const { return _smpte_offset; }
515 void set_smpte_offset_negative (bool);
516 bool smpte_offset_negative () const { return _smpte_offset_negative; }
518 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
520 static sigc::signal<void> StartTimeChanged;
521 static sigc::signal<void> EndTimeChanged;
522 static sigc::signal<void> SMPTEOffsetChanged;
524 void request_slave_source (SlaveSource);
525 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
527 float transport_speed() const { return _transport_speed; }
528 bool transport_stopped() const { return _transport_speed == 0.0f; }
529 bool transport_rolling() const { return _transport_speed != 0.0f; }
531 int jack_slave_sync (nframes_t);
533 TempoMap& tempo_map() { return *_tempo_map; }
537 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionAdded;
538 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionRemoved;
540 int region_name (string& result, string base = string(""), bool newlevel = false) const;
541 string new_region_name (string);
542 string path_from_region_name (string name, string identifier);
544 boost::shared_ptr<AudioRegion> find_whole_file_parent (boost::shared_ptr<AudioRegion const>);
545 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
547 boost::shared_ptr<AudioRegion> XMLRegionFactory (const XMLNode&, bool full);
549 template<class T> void foreach_audio_region (T *obj, void (T::*func)(boost::shared_ptr<AudioRegion>));
551 /* source management */
553 struct import_status : public InterThreadInfo {
559 volatile bool freeze;
560 std::vector<Glib::ustring> paths;
563 std::vector<boost::shared_ptr<AudioRegion> > new_regions;
567 int import_audiofile (import_status&);
568 bool sample_rate_convert (import_status&, string infile, string& outfile);
569 string build_tmp_convert_name (string file);
571 SlaveSource post_export_slave;
572 nframes_t post_export_position;
574 int start_audio_export (ARDOUR::AudioExportSpecification&);
575 int stop_audio_export (ARDOUR::AudioExportSpecification&);
577 void add_source (boost::shared_ptr<Source>);
578 void remove_source (boost::weak_ptr<Source>);
580 struct cleanup_report {
581 vector<string> paths;
585 int cleanup_sources (cleanup_report&);
586 int cleanup_trash_sources (cleanup_report&);
588 int destroy_region (boost::shared_ptr<Region>);
589 int destroy_regions (std::list<boost::shared_ptr<Region> >);
591 int remove_last_capture ();
593 /* handlers should return -1 for "stop cleanup", 0 for
594 "yes, delete this playlist" and 1 for "no, don't delete
598 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
600 /* handlers should return !0 for use pending state, 0 for
604 static sigc::signal<int> AskAboutPendingState;
606 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
608 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
610 /* playlist management */
612 boost::shared_ptr<Playlist> playlist_by_name (string name);
613 void add_playlist (boost::shared_ptr<Playlist>);
614 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
615 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
617 uint32_t n_playlists() const;
619 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
620 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
622 /* named selections */
624 NamedSelection* named_selection_by_name (string name);
625 void add_named_selection (NamedSelection *);
626 void remove_named_selection (NamedSelection *);
628 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
629 sigc::signal<void> NamedSelectionAdded;
630 sigc::signal<void> NamedSelectionRemoved;
632 /* Curves and AutomationLists (TODO when they go away) */
633 void add_curve(Curve*);
634 void add_automation_list(AutomationList*);
638 float get_default_fade_length () const { return default_fade_msecs; }
639 float get_default_fade_steepness () const { return default_fade_steepness; }
640 void set_default_fade (float steepness, float msecs);
644 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
645 void audition_playlist ();
646 void audition_region (boost::shared_ptr<Region>);
647 void cancel_audition ();
648 bool is_auditioning () const;
650 sigc::signal<void,bool> AuditionActive;
652 /* flattening stuff */
654 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite, vector<boost::shared_ptr<AudioSource> >&,
655 InterThreadInfo& wot);
656 int freeze (InterThreadInfo&);
658 /* session-wide solo/mute/rec-enable */
660 bool soloing() const { return currently_soloing; }
662 void set_all_solo (bool);
663 void set_all_mute (bool);
665 sigc::signal<void,bool> SoloActive;
667 void record_disenable_all ();
668 void record_enable_all ();
670 /* control/master out */
672 boost::shared_ptr<IO> control_out() const { return _control_out; }
673 boost::shared_ptr<IO> master_out() const { return _master_out; }
675 /* insert/send management */
677 uint32_t n_port_inserts() const { return _port_inserts.size(); }
678 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
679 uint32_t n_sends() const { return _sends.size(); }
681 uint32_t next_send_id();
682 uint32_t next_insert_id();
683 void mark_send_id (uint32_t);
684 void mark_insert_id (uint32_t);
686 /* s/w "RAID" management */
688 nframes_t available_capture_duration();
690 /* I/O Connections */
692 template<class T> void foreach_connection (T *obj, void (T::*func)(Connection *));
693 void add_connection (Connection *);
694 void remove_connection (Connection *);
695 Connection *connection_by_name (string) const;
697 sigc::signal<void,Connection *> ConnectionAdded;
698 sigc::signal<void,Connection *> ConnectionRemoved;
702 int set_mtc_port (string port_tag);
703 int set_mmc_port (string port_tag);
704 int set_midi_port (string port_tag);
705 MIDI::Port *mtc_port() const { return _mtc_port; }
706 MIDI::Port *mmc_port() const { return _mmc_port; }
707 MIDI::Port *midi_port() const { return _midi_port; }
709 sigc::signal<void> MTC_PortChanged;
710 sigc::signal<void> MMC_PortChanged;
711 sigc::signal<void> MIDI_PortChanged;
713 void set_trace_midi_input (bool, MIDI::Port* port = 0);
714 void set_trace_midi_output (bool, MIDI::Port* port = 0);
716 bool get_trace_midi_input(MIDI::Port *port = 0);
717 bool get_trace_midi_output(MIDI::Port *port = 0);
719 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
721 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
725 void start_scrub (nframes_t where);
727 void set_scrub_speed (float);
728 nframes_t scrub_buffer_size() const;
729 sigc::signal<void> ScrubReady;
731 /* History (for editors, mixers, UIs etc.) */
733 void undo (uint32_t n) {
737 void redo (uint32_t n) {
741 UndoHistory& history() { return _history; }
743 uint32_t undo_depth() const { return _history.undo_depth(); }
744 uint32_t redo_depth() const { return _history.redo_depth(); }
745 string next_undo() const { return _history.next_undo(); }
746 string next_redo() const { return _history.next_redo(); }
748 void begin_reversible_command (string cmd_name);
749 void commit_reversible_command (Command* cmd = 0);
751 void add_command (Command *const cmd) {
752 current_trans->add_command (cmd);
755 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
757 // these commands are implemented in libs/ardour/session_command.cc
758 Command* memento_command_factory(XMLNode* n);
759 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
761 Command* global_state_command_factory (const XMLNode& n);
763 class GlobalRouteStateCommand : public Command
766 GlobalRouteStateCommand (Session&, void*);
767 GlobalRouteStateCommand (Session&, const XMLNode& node);
768 int set_state (const XMLNode&);
769 XMLNode& get_state ();
772 GlobalRouteBooleanState before, after;
778 class GlobalSoloStateCommand : public GlobalRouteStateCommand
781 GlobalSoloStateCommand (Session &, void *src);
782 GlobalSoloStateCommand (Session&, const XMLNode&);
783 void operator()(); //redo
785 XMLNode &get_state();
789 class GlobalMuteStateCommand : public GlobalRouteStateCommand
792 GlobalMuteStateCommand(Session &, void *src);
793 GlobalMuteStateCommand (Session&, const XMLNode&);
794 void operator()(); // redo
796 XMLNode &get_state();
800 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
803 GlobalRecordEnableStateCommand(Session &, void *src);
804 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
805 void operator()(); // redo
807 XMLNode &get_state();
811 class GlobalMeteringStateCommand : public Command
814 GlobalMeteringStateCommand(Session &, void *src);
815 GlobalMeteringStateCommand (Session&, const XMLNode&);
818 XMLNode &get_state();
819 int set_state (const XMLNode&);
825 GlobalRouteMeterState before;
826 GlobalRouteMeterState after;
831 boost::shared_ptr<IO> click_io() { return _click_io; }
835 struct TimeStretchRequest {
836 boost::shared_ptr<ARDOUR::AudioRegion> region;
837 float fraction; /* session: read ; GUI: write */
838 float progress; /* session: write ; GUI: read */
839 bool running; /* read/write */
840 bool quick_seek; /* GUI: write */
841 bool antialias; /* GUI: write */
843 TimeStretchRequest () {}
846 boost::shared_ptr<AudioRegion> tempoize_region (TimeStretchRequest&);
848 /* disk, buffer loads */
850 uint32_t playback_load ();
851 uint32_t capture_load ();
852 uint32_t playback_load_min ();
853 uint32_t capture_load_min ();
855 void reset_playback_load_min ();
856 void reset_capture_load_min ();
858 float read_data_rate () const;
859 float write_data_rate () const;
863 void set_audio_range (list<AudioRange>&);
864 void set_music_range (list<MusicRange>&);
866 void request_play_range (bool yn);
867 bool get_play_range () const { return _play_range; }
870 typedef vector<string> FavoriteDirs;
872 static int read_favorite_dirs (FavoriteDirs&);
874 static int write_favorite_dirs (FavoriteDirs&);
878 static const char* template_suffix() { return _template_suffix; }
879 static const char* statefile_suffix() { return _statefile_suffix; }
880 static const char* pending_suffix() { return _pending_suffix; }
882 /* buffers for gain and pan */
884 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
885 pan_t** pan_automation_buffer() const { return _pan_automation_buffer; }
887 /* buffers for conversion */
896 static long vst_callback (AEffect* effect,
903 typedef float (*compute_peak_t) (Sample *, nframes_t, float);
904 typedef void (*apply_gain_to_buffer_t) (Sample *, nframes_t, float);
905 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, nframes_t, float);
906 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, nframes_t);
908 static compute_peak_t compute_peak;
909 static apply_gain_to_buffer_t apply_gain_to_buffer;
910 static mix_buffers_with_gain_t mix_buffers_with_gain;
911 static mix_buffers_no_gain_t mix_buffers_no_gain;
913 static sigc::signal<void> SendFeedback;
917 PBD::Controllable* controllable_by_id (const PBD::ID&);
919 void add_controllable (PBD::Controllable*);
920 void remove_controllable (PBD::Controllable*);
923 friend class AudioEngine;
924 void set_block_size (nframes_t nframes);
925 void set_frame_rate (nframes_t nframes);
928 friend class Diskstream;
930 void wait_till_butler_finished();
934 void schedule_curve_reallocation ();
935 void update_latency_compensation (bool, bool);
938 int create (bool& new_session, string* mix_template, nframes_t initial_length);
941 nframes_t compute_initial_length ();
943 static const char* _template_suffix;
944 static const char* _statefile_suffix;
945 static const char* _pending_suffix;
948 PendingDeclickIn = 0x1,
949 PendingDeclickOut = 0x2,
950 StopPendingCapture = 0x4,
951 AutoReturning = 0x10,
952 PendingLocate = 0x20,
953 PendingSetLoop = 0x40
956 /* stuff used in process() should be close together to
960 typedef void (Session::*process_function_type)(nframes_t);
962 AudioEngine &_engine;
963 mutable gint processing_prohibited;
964 process_function_type process_function;
965 process_function_type last_process_function;
966 bool waiting_for_sync_offset;
967 nframes_t _base_frame_rate;
968 nframes_t _current_frame_rate; //this includes video pullup offset
969 int transport_sub_state;
970 mutable gint _record_status;
971 nframes_t _transport_frame;
972 Location* end_location;
973 Location* start_location;
975 volatile float _transport_speed;
976 volatile float _desired_transport_speed;
977 float _last_transport_speed;
978 nframes_t _last_slave_transport_frame;
979 nframes_t maximum_output_latency;
980 nframes_t last_stop_frame;
981 vector<Sample *> _passthru_buffers;
982 vector<Sample *> _silent_buffers;
983 vector<Sample *> _send_buffers;
984 nframes_t current_block_size;
985 nframes_t _worst_output_latency;
986 nframes_t _worst_input_latency;
987 nframes_t _worst_track_latency;
990 float _meter_falloff;
991 bool _end_location_is_free;
993 void set_worst_io_latencies ();
994 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
995 set_worst_io_latencies ();
998 void update_latency_compensation_proxy (void* ignored);
1000 void ensure_passthru_buffers (uint32_t howmany);
1002 void process_scrub (nframes_t);
1003 void process_without_events (nframes_t);
1004 void process_with_events (nframes_t);
1005 void process_audition (nframes_t);
1006 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1008 /* slave tracking */
1010 static const int delta_accumulator_size = 25;
1011 int delta_accumulator_cnt;
1012 long delta_accumulator[delta_accumulator_size];
1013 long average_slave_delta;
1015 bool have_first_delta_accumulator;
1023 SlaveState slave_state;
1024 nframes_t slave_wait_end;
1026 void reset_slave_state ();
1027 bool follow_slave (nframes_t, nframes_t);
1028 void set_slave_source (SlaveSource);
1031 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1033 void prepare_diskstreams ();
1034 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1035 int process_routes (nframes_t, nframes_t);
1036 int silent_process_routes (nframes_t, nframes_t);
1038 bool get_rec_monitors_input () {
1039 if (actively_recording()) {
1042 if (Config->get_auto_input()) {
1050 int get_transport_declick_required () {
1052 if (transport_sub_state & PendingDeclickIn) {
1053 transport_sub_state &= ~PendingDeclickIn;
1055 } else if (transport_sub_state & PendingDeclickOut) {
1062 bool maybe_stop (nframes_t limit) {
1063 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1070 bool maybe_sync_start (nframes_t&, nframes_t&);
1072 void check_declick_out ();
1074 MIDI::MachineControl* mmc;
1075 MIDI::Port* _mmc_port;
1076 MIDI::Port* _mtc_port;
1077 MIDI::Port* _midi_port;
1080 bool session_send_mmc;
1081 bool session_send_mtc;
1082 bool session_midi_feedback;
1085 nframes_t last_loopend;
1087 RingBuffer<Event*> pending_events;
1090 void when_engine_running ();
1091 void graph_reordered ();
1093 string _current_snapshot_name;
1095 XMLTree* state_tree;
1096 bool state_was_pending;
1097 StateOfTheState _state_of_the_state;
1100 int load_options (const XMLNode&);
1101 XMLNode& get_options () const;
1102 int load_state (string snapshot_name);
1103 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1105 nframes_t _last_roll_location;
1106 nframes_t _last_record_location;
1107 bool pending_locate_roll;
1108 nframes_t pending_locate_frame;
1110 bool pending_locate_flush;
1112 bool pending_auto_loop;
1114 Sample* butler_mixdown_buffer;
1115 float* butler_gain_buffer;
1116 pthread_t butler_thread;
1117 Glib::Mutex butler_request_lock;
1118 Glib::Cond butler_paused;
1119 bool butler_should_run;
1120 mutable gint butler_should_do_transport_work;
1121 int butler_request_pipe[2];
1123 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1125 struct ButlerRequest {
1134 enum PostTransportWork {
1135 PostTransportStop = 0x1,
1136 PostTransportDisableRecord = 0x2,
1137 PostTransportPosition = 0x8,
1138 PostTransportDidRecord = 0x20,
1139 PostTransportDuration = 0x40,
1140 PostTransportLocate = 0x80,
1141 PostTransportRoll = 0x200,
1142 PostTransportAbort = 0x800,
1143 PostTransportOverWrite = 0x1000,
1144 PostTransportSpeed = 0x2000,
1145 PostTransportAudition = 0x4000,
1146 PostTransportScrub = 0x8000,
1147 PostTransportReverse = 0x10000,
1148 PostTransportInputChange = 0x20000,
1149 PostTransportCurveRealloc = 0x40000
1152 static const PostTransportWork ProcessCannotProceedMask =
1153 PostTransportWork (PostTransportInputChange|
1155 PostTransportReverse|
1156 PostTransportCurveRealloc|
1158 PostTransportAudition|
1159 PostTransportLocate|
1162 PostTransportWork post_transport_work;
1164 void summon_butler ();
1165 void schedule_butler_transport_work ();
1166 int start_butler_thread ();
1167 void terminate_butler_thread ();
1168 static void *_butler_thread_work (void *arg);
1169 void* butler_thread_work ();
1171 uint32_t cumulative_rf_motion;
1174 void set_rf_speed (float speed);
1175 void reset_rf_scale (nframes_t frames_moved);
1177 Locations _locations;
1178 void locations_changed ();
1179 void locations_added (Location*);
1180 void handle_locations_changed (Locations::LocationList&);
1182 sigc::connection auto_punch_start_changed_connection;
1183 sigc::connection auto_punch_end_changed_connection;
1184 sigc::connection auto_punch_changed_connection;
1185 void auto_punch_start_changed (Location *);
1186 void auto_punch_end_changed (Location *);
1187 void auto_punch_changed (Location *);
1189 sigc::connection auto_loop_start_changed_connection;
1190 sigc::connection auto_loop_end_changed_connection;
1191 sigc::connection auto_loop_changed_connection;
1192 void auto_loop_changed (Location *);
1194 typedef list<Event *> Events;
1196 Events immediate_events;
1197 Events::iterator next_event;
1199 /* there can only ever be one of each of these */
1201 Event *auto_loop_event;
1202 Event *punch_out_event;
1203 Event *punch_in_event;
1207 void dump_events () const;
1208 void queue_event (Event *ev);
1209 void merge_event (Event*);
1210 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1211 bool _replace_event (Event*);
1212 bool _remove_event (Event *);
1213 void _clear_event_type (Event::Type);
1215 void first_stage_init (string path, string snapshot_name);
1216 int second_stage_init (bool new_tracks);
1217 void find_current_end ();
1218 void remove_empty_sounds ();
1220 void setup_midi_control ();
1221 int midi_read (MIDI::Port *);
1223 void enable_record ();
1225 void increment_transport_position (uint32_t val) {
1226 if (max_frames - val < _transport_frame) {
1227 _transport_frame = max_frames;
1229 _transport_frame += val;
1233 void decrement_transport_position (uint32_t val) {
1234 if (val < _transport_frame) {
1235 _transport_frame -= val;
1237 _transport_frame = 0;
1241 void post_transport_motion ();
1242 static void *session_loader_thread (void *arg);
1246 void set_next_event ();
1247 void process_event (Event *);
1249 /* MIDI Machine Control */
1251 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1252 void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1253 void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1255 void spp_start (MIDI::Parser&);
1256 void spp_continue (MIDI::Parser&);
1257 void spp_stop (MIDI::Parser&);
1259 void mmc_deferred_play (MIDI::MachineControl &);
1260 void mmc_stop (MIDI::MachineControl &);
1261 void mmc_step (MIDI::MachineControl &, int);
1262 void mmc_pause (MIDI::MachineControl &);
1263 void mmc_record_pause (MIDI::MachineControl &);
1264 void mmc_record_strobe (MIDI::MachineControl &);
1265 void mmc_record_exit (MIDI::MachineControl &);
1266 void mmc_track_record_status (MIDI::MachineControl &,
1267 uint32_t track, bool enabled);
1268 void mmc_fast_forward (MIDI::MachineControl &);
1269 void mmc_rewind (MIDI::MachineControl &);
1270 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1271 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1272 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1274 struct timeval last_mmc_step;
1277 typedef sigc::slot<bool> MidiTimeoutCallback;
1278 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1280 MidiTimeoutList midi_timeouts;
1281 bool mmc_step_timeout ();
1283 MIDI::byte mmc_buffer[32];
1284 MIDI::byte mtc_msg[16];
1285 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1286 MIDI::byte midi_msg[16];
1287 nframes_t outbound_mtc_smpte_frame;
1288 SMPTE::Time transmitting_smpte_time;
1289 int next_quarter_frame_to_send;
1291 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1292 nframes_t _frames_per_hour;
1293 nframes_t _smpte_frames_per_hour;
1294 nframes_t _smpte_offset;
1295 bool _smpte_offset_negative;
1297 /* cache the most-recently requested time conversions.
1298 this helps when we have multiple clocks showing the
1299 same time (e.g. the transport frame)
1302 bool last_smpte_valid;
1303 nframes_t last_smpte_when;
1304 SMPTE::Time last_smpte;
1306 int send_full_time_code ();
1307 int send_midi_time_code ();
1309 void send_full_time_code_in_another_thread ();
1310 void send_midi_time_code_in_another_thread ();
1311 void send_time_code_in_another_thread (bool full);
1312 void send_mmc_in_another_thread (MIDI::MachineControl::Command, nframes_t frame = 0);
1314 nframes_t adjust_apparent_position (nframes_t frames);
1316 void reset_record_status ();
1318 int no_roll (nframes_t nframes, nframes_t offset);
1320 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1321 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1323 struct MIDIRequest {
1336 MIDI::MachineControl::Command mmc_cmd;
1337 nframes_t locate_frame;
1339 // for SendMessage type
1342 MIDI::channel_t chan;
1344 MIDI::EventTwoBytes data;
1355 void *operator new(size_t ignored) {
1356 return pool.alloc ();
1359 void operator delete(void *ptr, size_t size) {
1364 static MultiAllocSingleReleasePool pool;
1367 Glib::Mutex midi_lock;
1368 pthread_t midi_thread;
1369 int midi_request_pipe[2];
1370 mutable gint butler_active;
1371 RingBuffer<MIDIRequest*> midi_requests;
1373 int start_midi_thread ();
1374 void terminate_midi_thread ();
1375 void poke_midi_thread ();
1376 static void *_midi_thread_work (void *arg);
1377 void midi_thread_work ();
1378 void change_midi_ports ();
1379 int use_config_midi_ports ();
1381 bool waiting_to_start;
1383 void set_play_loop (bool yn);
1384 void overwrite_some_buffers (Diskstream*);
1385 void flush_all_redirects ();
1386 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1387 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1388 void force_locate (nframes_t frame, bool with_roll = false);
1389 void set_diskstream_speed (Diskstream*, float speed);
1390 void set_transport_speed (float speed, bool abort = false);
1391 void stop_transport (bool abort = false);
1392 void start_transport ();
1393 void actually_start_transport ();
1394 void realtime_stop (bool abort);
1395 void non_realtime_start_scrub ();
1396 void non_realtime_set_speed ();
1397 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1398 void non_realtime_overwrite (int entry_request_count, bool& finished);
1399 void butler_transport_work ();
1400 void post_transport ();
1401 void engine_halted ();
1402 void xrun_recovery ();
1404 TempoMap *_tempo_map;
1405 void tempo_map_changed (Change);
1407 /* edit/mix groups */
1409 int load_route_groups (const XMLNode&, bool is_edit);
1410 int load_edit_groups (const XMLNode&);
1411 int load_mix_groups (const XMLNode&);
1414 list<RouteGroup *> edit_groups;
1415 list<RouteGroup *> mix_groups;
1419 SerializedRCUManager<DiskstreamList> diskstreams;
1421 uint32_t dstream_buffer_size;
1422 int load_diskstreams (const XMLNode&);
1426 SerializedRCUManager<RouteList> routes;
1428 void add_routes (RouteList&, bool save = true);
1429 uint32_t destructive_index;
1431 int load_routes (const XMLNode&);
1432 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1436 bool solo_update_disabled;
1437 bool currently_soloing;
1439 void route_mute_changed (void *src);
1440 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1441 void catch_up_on_solo ();
1442 void update_route_solo_state ();
1443 void modify_solo_mute (bool, bool);
1444 void strip_portname_for_solo (string& portname);
1446 /* REGION MANAGEMENT */
1448 mutable Glib::Mutex region_lock;
1449 typedef map<PBD::ID,boost::shared_ptr<AudioRegion> > AudioRegionList;
1450 AudioRegionList audio_regions;
1452 void add_region (boost::shared_ptr<Region>);
1453 void region_changed (Change, boost::weak_ptr<Region>);
1454 void remove_region (boost::weak_ptr<Region>);
1456 int load_regions (const XMLNode& node);
1460 mutable Glib::Mutex audio_source_lock;
1461 typedef std::map<PBD::ID,boost::shared_ptr<AudioSource> > AudioSourceList;
1463 AudioSourceList audio_sources;
1465 int load_sources (const XMLNode& node);
1466 XMLNode& get_sources_as_xml ();
1468 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1472 mutable Glib::Mutex playlist_lock;
1473 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1474 PlaylistList playlists;
1475 PlaylistList unused_playlists;
1477 int load_playlists (const XMLNode&);
1478 int load_unused_playlists (const XMLNode&);
1479 void remove_playlist (boost::weak_ptr<Playlist>);
1480 void track_playlist (bool, boost::weak_ptr<Playlist>);
1482 boost::shared_ptr<Playlist> playlist_factory (string name);
1483 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1485 void playlist_length_changed ();
1486 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1488 /* NAMED SELECTIONS */
1490 mutable Glib::Mutex named_selection_lock;
1491 typedef set<NamedSelection *> NamedSelectionList;
1492 NamedSelectionList named_selections;
1494 int load_named_selections (const XMLNode&);
1496 NamedSelection *named_selection_factory (string name);
1497 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1499 /* CURVES and AUTOMATION LISTS */
1500 std::map<PBD::ID, Curve*> curves;
1501 std::map<PBD::ID, AutomationList*> automation_lists;
1503 /* DEFAULT FADE CURVES */
1505 float default_fade_steepness;
1506 float default_fade_msecs;
1510 boost::shared_ptr<Auditioner> auditioner;
1511 void set_audition (boost::shared_ptr<Region>);
1512 void non_realtime_set_audition ();
1513 boost::shared_ptr<Region> pending_audition_region;
1519 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1521 /* INSERT AND SEND MANAGEMENT */
1523 list<PortInsert *> _port_inserts;
1524 list<PluginInsert *> _plugin_inserts;
1525 list<Send *> _sends;
1526 boost::dynamic_bitset<uint32_t> send_bitset;
1527 boost::dynamic_bitset<uint32_t> insert_bitset;
1529 uint32_t insert_cnt;
1532 void add_redirect (Redirect *);
1533 void remove_redirect (Redirect *);
1537 struct space_and_path {
1538 uint32_t blocks; /* 4kB blocks */
1546 struct space_and_path_ascending_cmp {
1547 bool operator() (space_and_path a, space_and_path b) {
1548 return a.blocks > b.blocks;
1552 void setup_raid_path (string path);
1554 vector<space_and_path> session_dirs;
1555 vector<space_and_path>::iterator last_rr_session_dir;
1556 uint32_t _total_free_4k_blocks;
1557 Glib::Mutex space_lock;
1559 static const char* old_sound_dir_name;
1560 static const char* sound_dir_name;
1561 static const char* dead_sound_dir_name;
1562 static const char* interchange_dir_name;
1563 static const char* peak_dir_name;
1565 string discover_best_sound_dir (bool destructive = false);
1566 int ensure_sound_dir (string, string&);
1567 void refresh_disk_space ();
1569 mutable gint _playback_load;
1570 mutable gint _capture_load;
1571 mutable gint _playback_load_min;
1572 mutable gint _capture_load_min;
1574 /* I/O Connections */
1576 typedef list<Connection *> ConnectionList;
1577 mutable Glib::Mutex connection_lock;
1578 ConnectionList _connections;
1579 int load_connections (const XMLNode&);
1581 void reverse_diskstream_buffers ();
1583 UndoHistory _history;
1584 UndoTransaction* current_trans;
1586 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1587 GlobalRouteMeterState get_global_route_metering ();
1589 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1590 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1592 void set_global_mute (GlobalRouteBooleanState s, void *src);
1593 void set_global_solo (GlobalRouteBooleanState s, void *src);
1594 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1596 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1597 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1598 void record_enable_change_all (bool yn);
1600 XMLNode& state(bool);
1610 Click (nframes_t s, nframes_t d, const Sample *b)
1611 : start (s), duration (d), data (b) { offset = 0; }
1613 void *operator new(size_t ignored) {
1614 return pool.alloc ();
1617 void operator delete(void *ptr, size_t size) {
1625 typedef list<Click*> Clicks;
1629 boost::shared_ptr<IO> _click_io;
1631 Sample* click_emphasis_data;
1632 nframes_t click_length;
1633 nframes_t click_emphasis_length;
1634 mutable Glib::RWLock click_lock;
1636 static const Sample default_click[];
1637 static const nframes_t default_click_length;
1638 static const Sample default_click_emphasis[];
1639 static const nframes_t default_click_emphasis_length;
1642 void setup_click_sounds (int which);
1643 void clear_clicks ();
1644 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1646 vector<Route*> master_outs;
1648 /* range playback */
1650 list<AudioRange> current_audio_range;
1652 void set_play_range (bool yn);
1653 void setup_auto_play ();
1658 boost::shared_ptr<IO> _master_out;
1659 boost::shared_ptr<IO> _control_out;
1661 gain_t* _gain_automation_buffer;
1662 pan_t** _pan_automation_buffer;
1663 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1664 uint32_t _npan_buffers;
1668 long _vst_callback (VSTPlugin*,
1675 /* number of hardware audio ports we're using,
1676 based on max (requested,available)
1679 uint32_t n_physical_outputs;
1680 uint32_t n_physical_inputs;
1682 void remove_pending_capture_state ();
1684 int find_all_sources (std::string path, std::set<std::string>& result);
1685 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1687 LayerModel layer_model;
1688 CrossfadeModel xfade_model;
1690 typedef std::set<PBD::Controllable*> Controllables;
1691 Glib::Mutex controllables_lock;
1692 Controllables controllables;
1694 void reset_native_file_format();
1695 bool first_file_data_format_reset;
1696 bool first_file_header_format_reset;
1698 void config_changed (const char*);
1700 void add_control_protocol (const ControlProtocolInfo* const, XMLNode*);
1701 XMLNode& get_control_protocol_state ();
1705 } // namespace ARDOUR
1707 #endif /* __ardour_session_h__ */