2 Copyright (C) 2000 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_session_h__
21 #define __ardour_session_h__
30 #include <boost/scoped_ptr.hpp>
31 #include <boost/weak_ptr.hpp>
32 #include <boost/dynamic_bitset.hpp>
38 #include <glibmm/thread.h>
40 #include <pbd/error.h>
44 #include <pbd/statefuldestructible.h>
46 #include <midi++/types.h>
47 #include <midi++/mmc.h>
49 #include <pbd/stateful.h>
50 #include <pbd/destructible.h>
52 #include <ardour/ardour.h>
53 #include <ardour/configuration.h>
54 #include <ardour/location.h>
55 #include <ardour/gain.h>
56 #include <ardour/io.h>
58 #include <ardour/smpte.h>
85 class AudioDiskstream;
87 class AudioFileSource;
104 class ControlProtocolInfo;
110 class SessionDirectory;
112 struct AudioExportSpecification;
120 class Session : public PBD::StatefulDestructible
123 typedef std::pair<boost::weak_ptr<Route>,bool> RouteBooleanState;
124 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
125 typedef std::pair<boost::weak_ptr<Route>,MeterPoint> RouteMeterState;
126 typedef vector<RouteMeterState> GlobalRouteMeterState;
149 InputConfigurationChange,
153 /* only one of each of these events
154 can be queued at any one time
170 nframes_t action_frame;
171 nframes_t target_frame;
181 boost::shared_ptr<Region> region;
183 list<AudioRange> audio_range;
184 list<MusicRange> music_range;
186 Event(Type t, Action a, nframes_t when, nframes_t where, float spd, bool yn = false)
190 target_frame (where),
194 void set_ptr (void* p) {
198 bool before (const Event& other) const {
199 return action_frame < other.action_frame;
202 bool after (const Event& other) const {
203 return action_frame > other.action_frame;
206 static bool compare (const Event *e1, const Event *e2) {
207 return e1->before (*e2);
210 void *operator new (size_t ignored) {
211 return pool.alloc ();
214 void operator delete(void *ptr, size_t size) {
218 static const nframes_t Immediate = 0;
221 static MultiAllocSingleReleasePool pool;
224 /* creating from an XML file */
226 Session (AudioEngine&,
228 string snapshot_name,
229 string* mix_template = 0);
231 /* creating a new Session */
233 Session (AudioEngine&,
235 string snapshot_name,
236 AutoConnectOption input_auto_connect,
237 AutoConnectOption output_auto_connect,
238 uint32_t control_out_channels,
239 uint32_t master_out_channels,
240 uint32_t n_physical_in,
241 uint32_t n_physical_out,
242 nframes_t initial_length);
246 string path() const { return _path; }
247 string name() const { return _name; }
248 string snap_name() const { return _current_snapshot_name; }
249 string raid_path () const;
251 void set_snap_name ();
255 bool dirty() const { return _state_of_the_state & Dirty; }
256 void set_deletion_in_progress ();
257 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
258 sigc::signal<void> DirtyChanged;
260 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
262 std::string automation_dir () const;
264 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
265 static string change_midi_path_by_name (string oldpath, string oldname, string newname, bool destructive);
267 string peak_path_from_audio_path (string) const;
268 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
269 string midi_path_from_name (string);
271 void process (nframes_t nframes);
273 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
274 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
275 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
277 void add_diskstream (boost::shared_ptr<Diskstream>);
278 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
279 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
281 bool have_captured() const { return _have_captured; }
283 void refill_all_diskstream_buffers ();
284 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
286 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
287 uint32_t n_diskstreams() const;
289 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
290 typedef std::list<boost::shared_ptr<Route> > RouteList;
292 boost::shared_ptr<RouteList> get_routes() const {
293 return routes.reader ();
296 uint32_t nroutes() const { return routes.reader()->size(); }
297 uint32_t ntracks () const;
298 uint32_t nbusses () const;
300 struct RoutePublicOrderSorter {
301 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
304 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
305 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
306 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
308 boost::shared_ptr<Route> route_by_name (string);
309 boost::shared_ptr<Route> route_by_id (PBD::ID);
310 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
312 bool route_name_unique (string) const;
314 bool get_record_enabled() const {
315 return (record_status () >= Enabled);
318 RecordState record_status() const {
319 return (RecordState) g_atomic_int_get (&_record_status);
322 bool actively_recording () {
323 return record_status() == Recording;
326 bool record_enabling_legal () const;
327 void maybe_enable_record ();
328 void disable_record (bool rt_context, bool force = false);
329 void step_back_from_record ();
331 void maybe_write_autosave ();
333 /* Proxy signal for region hidden changes */
335 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
337 /* Emitted when all i/o connections are complete */
339 sigc::signal<void> IOConnectionsComplete;
341 /* Record status signals */
343 sigc::signal<void> RecordStateChanged;
345 /* Transport mechanism signals */
347 sigc::signal<void> TransportStateChange; /* generic */
348 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
349 sigc::signal<void> DurationChanged;
350 sigc::signal<void> HaltOnXrun;
351 sigc::signal<void> TransportLooped;
353 sigc::signal<void,RouteList&> RouteAdded;
355 void request_roll ();
356 void request_bounded_roll (nframes_t start, nframes_t end);
357 void request_stop (bool abort = false);
358 void request_locate (nframes_t frame, bool with_roll = false);
360 void request_play_loop (bool yn);
361 bool get_play_loop () const { return play_loop; }
363 nframes_t last_transport_start() const { return _last_roll_location; }
364 void goto_end () { request_locate (end_location->start(), false);}
365 void goto_start () { request_locate (start_location->start(), false); }
366 void set_session_start (nframes_t start) { start_location->set_start(start); }
367 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
368 void use_rf_shuttle_speed ();
369 void allow_auto_play (bool yn);
370 void request_transport_speed (float speed);
371 void request_overwrite_buffer (Diskstream*);
372 void request_diskstream_speed (Diskstream&, float speed);
373 void request_input_change_handling ();
375 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
376 bool transport_locked () const;
379 //int wipe_diskstream (AudioDiskstream *);
381 int remove_region_from_region_list (boost::shared_ptr<Region>);
383 nframes_t get_maximum_extent () const;
384 nframes_t current_end_frame() const { return end_location->start(); }
385 nframes_t current_start_frame() const { return start_location->start(); }
386 nframes_t frame_rate() const { return _current_frame_rate; }
387 nframes_t frames_per_hour() const { return _frames_per_hour; }
389 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
390 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
392 float smpte_frames_per_second() const;
393 bool smpte_drop_frames() const;
397 Locations *locations() { return &_locations; }
399 sigc::signal<void,Location*> auto_loop_location_changed;
400 sigc::signal<void,Location*> auto_punch_location_changed;
401 sigc::signal<void> locations_modified;
403 void set_auto_punch_location (Location *);
404 void set_auto_loop_location (Location *);
405 int location_name(string& result, string base = string(""));
407 void reset_input_monitor_state ();
409 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
410 void remove_event (nframes_t frame, Event::Type type);
411 void clear_events (Event::Type type);
413 nframes_t get_block_size() const { return current_block_size; }
414 nframes_t worst_output_latency () const { return _worst_output_latency; }
415 nframes_t worst_input_latency () const { return _worst_input_latency; }
416 nframes_t worst_track_latency () const { return _worst_track_latency; }
418 int save_state (string snapshot_name, bool pending = false);
419 int restore_state (string snapshot_name);
420 int save_template (string template_name);
421 int save_history (string snapshot_name = "");
422 int restore_history (string snapshot_name);
423 void remove_state (string snapshot_name);
424 void rename_state (string old_name, string new_name);
426 sigc::signal<void,string> StateSaved;
427 sigc::signal<void> StateReady;
429 vector<string*>* possible_states() const;
430 static vector<string*>* possible_states(string path);
432 XMLNode& get_state();
433 int set_state(const XMLNode& node); // not idempotent
434 XMLNode& get_template();
436 /// The instant xml file is written to the session directory
437 void add_instant_xml (XMLNode&);
438 XMLNode * instant_xml (const std::string& str);
440 enum StateOfTheState {
445 InitialConnecting = 0x8,
450 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
452 RouteGroup* add_edit_group (string);
453 RouteGroup* add_mix_group (string);
455 void remove_edit_group (RouteGroup&);
456 void remove_mix_group (RouteGroup&);
458 RouteGroup *mix_group_by_name (string);
459 RouteGroup *edit_group_by_name (string);
461 sigc::signal<void,RouteGroup*> edit_group_added;
462 sigc::signal<void,RouteGroup*> mix_group_added;
463 sigc::signal<void> edit_group_removed;
464 sigc::signal<void> mix_group_removed;
466 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
467 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
472 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
473 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
478 /* fundamental operations. duh. */
480 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
481 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
483 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (TrackMode mode = Normal, uint32_t how_many = 1);
484 //boost::shared_ptr<Route> new_midi_route (uint32_t how_many = 1);
486 void remove_route (boost::shared_ptr<Route>);
487 void resort_routes ();
488 void resort_routes_using (boost::shared_ptr<RouteList>);
490 void set_remote_control_ids();
492 AudioEngine &engine() { return _engine; };
499 nframes_t transport_frame () const {return _transport_frame; }
500 nframes_t audible_frame () const;
514 int set_smpte_format (SmpteFormat);
515 void sync_time_vars();
517 void bbt_time (nframes_t when, BBT_Time&);
518 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
519 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
520 void smpte_time (SMPTE::Time &);
521 void smpte_time (nframes_t when, SMPTE::Time&);
522 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
524 void smpte_duration (nframes_t, SMPTE::Time&) const;
525 void smpte_duration_string (char *, nframes_t) const;
527 void set_smpte_offset (nframes_t);
528 nframes_t smpte_offset () const { return _smpte_offset; }
529 void set_smpte_offset_negative (bool);
530 bool smpte_offset_negative () const { return _smpte_offset_negative; }
532 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
534 static sigc::signal<void> StartTimeChanged;
535 static sigc::signal<void> EndTimeChanged;
536 static sigc::signal<void> SMPTEOffsetChanged;
538 void request_slave_source (SlaveSource);
539 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
541 float transport_speed() const { return _transport_speed; }
542 bool transport_stopped() const { return _transport_speed == 0.0f; }
543 bool transport_rolling() const { return _transport_speed != 0.0f; }
545 int jack_slave_sync (nframes_t);
547 TempoMap& tempo_map() { return *_tempo_map; }
551 sigc::signal<void,boost::shared_ptr<Region> > RegionAdded;
552 sigc::signal<void,boost::shared_ptr<Region> > RegionRemoved;
554 int region_name (string& result, string base = string(""), bool newlevel = false) const;
555 string new_region_name (string);
556 string path_from_region_name (DataType type, string name, string identifier);
558 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>);
560 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
562 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
563 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
564 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
566 template<class T> void foreach_region (T *obj, void (T::*func)(boost::shared_ptr<Region>));
568 /* source management */
570 struct import_status : public InterThreadInfo {
576 volatile bool freeze;
577 std::vector<Glib::ustring> paths;
580 std::vector<boost::shared_ptr<Region> > new_regions;
583 int import_audiofile (import_status&);
584 bool sample_rate_convert (import_status&, string infile, string& outfile);
585 string build_tmp_convert_name (string file);
587 SlaveSource post_export_slave;
588 nframes_t post_export_position;
590 int start_audio_export (ARDOUR::AudioExportSpecification&);
591 int stop_audio_export (ARDOUR::AudioExportSpecification&);
592 void finalize_audio_export ();
594 void add_source (boost::shared_ptr<Source>);
595 void remove_source (boost::weak_ptr<Source>);
597 struct cleanup_report {
598 vector<string> paths;
602 int cleanup_sources (cleanup_report&);
603 int cleanup_trash_sources (cleanup_report&);
605 int destroy_region (boost::shared_ptr<Region>);
606 int destroy_regions (std::list<boost::shared_ptr<Region> >);
608 int remove_last_capture ();
610 /* handlers should return -1 for "stop cleanup", 0 for
611 "yes, delete this playlist" and 1 for "no, don't delete
615 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
617 /* handlers should return !0 for use pending state, 0 for
621 static sigc::signal<int> AskAboutPendingState;
623 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
625 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
627 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
628 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
630 /* playlist management */
632 boost::shared_ptr<Playlist> playlist_by_name (string name);
633 void add_playlist (boost::shared_ptr<Playlist>);
634 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
635 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
637 uint32_t n_playlists() const;
639 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
640 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
642 /* named selections */
644 NamedSelection* named_selection_by_name (string name);
645 void add_named_selection (NamedSelection *);
646 void remove_named_selection (NamedSelection *);
648 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
649 sigc::signal<void> NamedSelectionAdded;
650 sigc::signal<void> NamedSelectionRemoved;
652 /* Curves and AutomationLists (TODO when they go away) */
653 void add_curve(Curve*);
654 void add_automation_list(AutomationList*);
656 nframes_t automation_interval () const { return _automation_interval; }
660 float get_default_fade_length () const { return default_fade_msecs; }
661 float get_default_fade_steepness () const { return default_fade_steepness; }
662 void set_default_fade (float steepness, float msecs);
666 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
667 void audition_playlist ();
668 void audition_region (boost::shared_ptr<Region>);
669 void cancel_audition ();
670 bool is_auditioning () const;
672 sigc::signal<void,bool> AuditionActive;
674 /* flattening stuff */
676 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite,
677 vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot);
679 int freeze (InterThreadInfo&);
681 /* session-wide solo/mute/rec-enable */
683 bool soloing() const { return currently_soloing; }
685 void set_all_solo (bool);
686 void set_all_mute (bool);
688 sigc::signal<void,bool> SoloActive;
689 sigc::signal<void> SoloChanged;
691 void record_disenable_all ();
692 void record_enable_all ();
694 /* control/master out */
696 boost::shared_ptr<IO> control_out() const { return _control_out; }
697 boost::shared_ptr<IO> master_out() const { return _master_out; }
699 /* insert/send management */
701 uint32_t n_port_inserts() const { return _port_inserts.size(); }
702 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
703 uint32_t n_sends() const { return _sends.size(); }
705 uint32_t next_send_id();
706 uint32_t next_insert_id();
707 void mark_send_id (uint32_t);
708 void mark_insert_id (uint32_t);
710 /* s/w "RAID" management */
712 nframes_t available_capture_duration();
716 template<class T> void foreach_bundle (T *obj, void (T::*func)(Bundle *));
717 void add_bundle (Bundle *);
718 void remove_bundle (Bundle *);
719 Bundle *bundle_by_name (string) const;
721 sigc::signal<void,Bundle *> BundleAdded;
722 sigc::signal<void,Bundle *> BundleRemoved;
726 int set_mtc_port (string port_tag);
727 int set_mmc_port (string port_tag);
728 int set_midi_port (string port_tag);
729 MIDI::Port *mtc_port() const { return _mtc_port; }
730 MIDI::Port *mmc_port() const { return _mmc_port; }
731 MIDI::Port *midi_port() const { return _midi_port; }
733 sigc::signal<void> MTC_PortChanged;
734 sigc::signal<void> MMC_PortChanged;
735 sigc::signal<void> MIDI_PortChanged;
737 void set_trace_midi_input (bool, MIDI::Port* port = 0);
738 void set_trace_midi_output (bool, MIDI::Port* port = 0);
740 bool get_trace_midi_input(MIDI::Port *port = 0);
741 bool get_trace_midi_output(MIDI::Port *port = 0);
743 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
745 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
747 void set_mmc_device_id (uint32_t id);
751 void start_scrub (nframes_t where);
753 void set_scrub_speed (float);
754 nframes_t scrub_buffer_size() const;
755 sigc::signal<void> ScrubReady;
757 /* History (for editors, mixers, UIs etc.) */
759 /** Undo some transactions.
760 * @param n Number of transactions to undo.
762 void undo (uint32_t n) {
766 void redo (uint32_t n) {
770 UndoHistory& history() { return _history; }
772 uint32_t undo_depth() const { return _history.undo_depth(); }
773 uint32_t redo_depth() const { return _history.redo_depth(); }
774 string next_undo() const { return _history.next_undo(); }
775 string next_redo() const { return _history.next_redo(); }
777 void begin_reversible_command (const string& cmd_name);
778 void commit_reversible_command (Command* cmd = 0);
780 void add_command (Command *const cmd) {
781 current_trans->add_command (cmd);
784 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
786 // these commands are implemented in libs/ardour/session_command.cc
787 Command* memento_command_factory(XMLNode* n);
788 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
790 Command* global_state_command_factory (const XMLNode& n);
792 class GlobalRouteStateCommand : public Command
795 GlobalRouteStateCommand (Session&, void*);
796 GlobalRouteStateCommand (Session&, const XMLNode& node);
797 int set_state (const XMLNode&);
798 XMLNode& get_state ();
801 GlobalRouteBooleanState before, after;
807 class GlobalSoloStateCommand : public GlobalRouteStateCommand
810 GlobalSoloStateCommand (Session &, void *src);
811 GlobalSoloStateCommand (Session&, const XMLNode&);
812 void operator()(); //redo
814 XMLNode &get_state();
818 class GlobalMuteStateCommand : public GlobalRouteStateCommand
821 GlobalMuteStateCommand(Session &, void *src);
822 GlobalMuteStateCommand (Session&, const XMLNode&);
823 void operator()(); // redo
825 XMLNode &get_state();
829 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
832 GlobalRecordEnableStateCommand(Session &, void *src);
833 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
834 void operator()(); // redo
836 XMLNode &get_state();
840 class GlobalMeteringStateCommand : public Command
843 GlobalMeteringStateCommand(Session &, void *src);
844 GlobalMeteringStateCommand (Session&, const XMLNode&);
847 XMLNode &get_state();
848 int set_state (const XMLNode&);
854 GlobalRouteMeterState before;
855 GlobalRouteMeterState after;
860 boost::shared_ptr<IO> click_io() { return _click_io; }
864 struct TimeStretchRequest {
865 boost::shared_ptr<ARDOUR::AudioRegion> region;
866 float fraction; /* session: read ; GUI: write */
867 float progress; /* session: write ; GUI: read */
868 bool running; /* read/write */
869 bool quick_seek; /* GUI: write */
870 bool antialias; /* GUI: write */
872 TimeStretchRequest () {}
875 boost::shared_ptr<AudioRegion> tempoize_region (TimeStretchRequest&);
877 /* disk, buffer loads */
879 uint32_t playback_load ();
880 uint32_t capture_load ();
881 uint32_t playback_load_min ();
882 uint32_t capture_load_min ();
884 void reset_playback_load_min ();
885 void reset_capture_load_min ();
887 float read_data_rate () const;
888 float write_data_rate () const;
892 void set_audio_range (list<AudioRange>&);
893 void set_music_range (list<MusicRange>&);
895 void request_play_range (bool yn);
896 bool get_play_range () const { return _play_range; }
898 /* buffers for gain and pan */
900 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
901 pan_t** pan_automation_buffer () const { return _pan_automation_buffer; }
903 /* buffers for conversion */
912 static long vst_callback (AEffect* effect,
919 static sigc::signal<void> SendFeedback;
923 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
925 void add_controllable (boost::shared_ptr<PBD::Controllable>);
926 void remove_controllable (PBD::Controllable*);
929 friend class AudioEngine;
930 void set_block_size (nframes_t nframes);
931 void set_frame_rate (nframes_t nframes);
934 friend class Diskstream;
936 void wait_till_butler_finished();
940 void schedule_curve_reallocation ();
941 void update_latency_compensation (bool, bool);
946 void initialize_start_and_end_locations(nframes_t start, nframes_t end);
947 bool create_session_file();
948 bool create_session_file_from_template (const string& template_path);
950 nframes_t compute_initial_length ();
953 PendingDeclickIn = 0x1,
954 PendingDeclickOut = 0x2,
955 StopPendingCapture = 0x4,
956 AutoReturning = 0x10,
957 PendingLocate = 0x20,
958 PendingSetLoop = 0x40
961 /* stuff used in process() should be close together to
965 typedef void (Session::*process_function_type)(nframes_t);
967 AudioEngine &_engine;
968 mutable gint processing_prohibited;
969 /// the function called when the main JACK process callback happens
970 process_function_type process_function;
971 process_function_type last_process_function;
972 bool waiting_for_sync_offset;
973 nframes_t _base_frame_rate;
974 nframes_t _current_frame_rate; //this includes video pullup offset
975 int transport_sub_state;
976 mutable gint _record_status;
977 nframes_t _transport_frame;
978 Location* end_location;
979 Location* start_location;
981 volatile float _transport_speed;
982 volatile float _desired_transport_speed;
983 float _last_transport_speed;
984 bool auto_play_legal;
985 nframes_t _last_slave_transport_frame;
986 nframes_t maximum_output_latency;
987 nframes_t last_stop_frame;
988 BufferSet* _scratch_buffers;
989 BufferSet* _silent_buffers;
990 BufferSet* _mix_buffers;
991 nframes_t current_block_size;
992 nframes_t _worst_output_latency;
993 nframes_t _worst_input_latency;
994 nframes_t _worst_track_latency;
997 float _meter_falloff;
998 bool _end_location_is_free;
1000 void set_worst_io_latencies ();
1001 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1002 set_worst_io_latencies ();
1005 void update_latency_compensation_proxy (void* ignored);
1007 void ensure_buffers (ChanCount howmany);
1009 void process_scrub (nframes_t);
1010 void process_without_events (nframes_t);
1011 void process_with_events (nframes_t);
1012 void process_audition (nframes_t);
1013 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1015 /* slave tracking */
1017 static const int delta_accumulator_size = 25;
1018 int delta_accumulator_cnt;
1019 long delta_accumulator[delta_accumulator_size];
1020 long average_slave_delta;
1022 bool have_first_delta_accumulator;
1030 SlaveState slave_state;
1031 nframes_t slave_wait_end;
1033 void reset_slave_state ();
1034 bool follow_slave (nframes_t, nframes_t);
1035 void set_slave_source (SlaveSource);
1038 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1040 void prepare_diskstreams ();
1041 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1042 int process_routes (nframes_t, nframes_t);
1043 int silent_process_routes (nframes_t, nframes_t);
1045 bool get_rec_monitors_input () {
1046 if (actively_recording()) {
1049 if (Config->get_auto_input()) {
1057 int get_transport_declick_required () {
1059 if (transport_sub_state & PendingDeclickIn) {
1060 transport_sub_state &= ~PendingDeclickIn;
1062 } else if (transport_sub_state & PendingDeclickOut) {
1069 bool maybe_stop (nframes_t limit) {
1070 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1077 bool maybe_sync_start (nframes_t&, nframes_t&);
1079 void check_declick_out ();
1081 MIDI::MachineControl* mmc;
1082 MIDI::Port* _mmc_port;
1083 MIDI::Port* _mtc_port;
1084 MIDI::Port* _midi_port;
1087 bool session_send_mmc;
1088 bool session_send_mtc;
1089 bool session_midi_feedback;
1092 nframes_t last_loopend;
1094 boost::scoped_ptr<SessionDirectory> _session_dir;
1096 RingBuffer<Event*> pending_events;
1099 void when_engine_running ();
1100 void graph_reordered ();
1102 string _current_snapshot_name;
1104 XMLTree* state_tree;
1105 bool state_was_pending;
1106 StateOfTheState _state_of_the_state;
1109 int load_options (const XMLNode&);
1110 XMLNode& get_options () const;
1111 int load_state (string snapshot_name);
1112 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1114 nframes_t _last_roll_location;
1115 nframes_t _last_record_location;
1117 bool pending_locate_roll;
1118 nframes_t pending_locate_frame;
1119 bool pending_locate_flush;
1121 bool pending_auto_loop;
1123 Sample* butler_mixdown_buffer;
1124 float* butler_gain_buffer;
1125 pthread_t butler_thread;
1126 Glib::Mutex butler_request_lock;
1127 Glib::Cond butler_paused;
1128 bool butler_should_run;
1129 mutable gint butler_should_do_transport_work;
1130 int butler_request_pipe[2];
1132 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1134 struct ButlerRequest {
1143 enum PostTransportWork {
1144 PostTransportStop = 0x1,
1145 PostTransportDisableRecord = 0x2,
1146 PostTransportPosition = 0x8,
1147 PostTransportDidRecord = 0x20,
1148 PostTransportDuration = 0x40,
1149 PostTransportLocate = 0x80,
1150 PostTransportRoll = 0x200,
1151 PostTransportAbort = 0x800,
1152 PostTransportOverWrite = 0x1000,
1153 PostTransportSpeed = 0x2000,
1154 PostTransportAudition = 0x4000,
1155 PostTransportScrub = 0x8000,
1156 PostTransportReverse = 0x10000,
1157 PostTransportInputChange = 0x20000,
1158 PostTransportCurveRealloc = 0x40000
1161 static const PostTransportWork ProcessCannotProceedMask =
1162 PostTransportWork (PostTransportInputChange|
1164 PostTransportReverse|
1165 PostTransportCurveRealloc|
1167 PostTransportAudition|
1168 PostTransportLocate|
1171 PostTransportWork post_transport_work;
1173 void summon_butler ();
1174 void schedule_butler_transport_work ();
1175 int start_butler_thread ();
1176 void terminate_butler_thread ();
1177 static void *_butler_thread_work (void *arg);
1178 void* butler_thread_work ();
1180 uint32_t cumulative_rf_motion;
1183 void set_rf_speed (float speed);
1184 void reset_rf_scale (nframes_t frames_moved);
1186 Locations _locations;
1187 void locations_changed ();
1188 void locations_added (Location*);
1189 void handle_locations_changed (Locations::LocationList&);
1191 sigc::connection auto_punch_start_changed_connection;
1192 sigc::connection auto_punch_end_changed_connection;
1193 sigc::connection auto_punch_changed_connection;
1194 void auto_punch_start_changed (Location *);
1195 void auto_punch_end_changed (Location *);
1196 void auto_punch_changed (Location *);
1198 sigc::connection auto_loop_start_changed_connection;
1199 sigc::connection auto_loop_end_changed_connection;
1200 sigc::connection auto_loop_changed_connection;
1201 void auto_loop_changed (Location *);
1203 typedef list<Event *> Events;
1205 Events immediate_events;
1206 Events::iterator next_event;
1208 /* there can only ever be one of each of these */
1210 Event *auto_loop_event;
1211 Event *punch_out_event;
1212 Event *punch_in_event;
1216 void dump_events () const;
1217 void queue_event (Event *ev);
1218 void merge_event (Event*);
1219 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1220 bool _replace_event (Event*);
1221 bool _remove_event (Event *);
1222 void _clear_event_type (Event::Type);
1224 void first_stage_init (string path, string snapshot_name);
1225 int second_stage_init (bool new_tracks);
1226 void find_current_end ();
1227 void remove_empty_sounds ();
1229 void setup_midi_control ();
1230 //int midi_read (MIDI::Port *);
1232 void enable_record ();
1234 void increment_transport_position (uint32_t val) {
1235 if (max_frames - val < _transport_frame) {
1236 _transport_frame = max_frames;
1238 _transport_frame += val;
1242 void decrement_transport_position (uint32_t val) {
1243 if (val < _transport_frame) {
1244 _transport_frame -= val;
1246 _transport_frame = 0;
1250 void post_transport_motion ();
1251 static void *session_loader_thread (void *arg);
1255 void set_next_event ();
1256 void process_event (Event *ev);
1258 /* MIDI Machine Control */
1260 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1261 //void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1262 //void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1264 void spp_start (MIDI::Parser&);
1265 void spp_continue (MIDI::Parser&);
1266 void spp_stop (MIDI::Parser&);
1268 void mmc_deferred_play (MIDI::MachineControl &);
1269 void mmc_stop (MIDI::MachineControl &);
1270 void mmc_step (MIDI::MachineControl &, int);
1271 void mmc_pause (MIDI::MachineControl &);
1272 void mmc_record_pause (MIDI::MachineControl &);
1273 void mmc_record_strobe (MIDI::MachineControl &);
1274 void mmc_record_exit (MIDI::MachineControl &);
1275 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1276 void mmc_fast_forward (MIDI::MachineControl &);
1277 void mmc_rewind (MIDI::MachineControl &);
1278 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1279 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1280 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1282 struct timeval last_mmc_step;
1285 typedef sigc::slot<bool> MidiTimeoutCallback;
1286 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1288 MidiTimeoutList midi_timeouts;
1289 bool mmc_step_timeout ();
1291 MIDI::byte mmc_buffer[32];
1292 MIDI::byte mtc_msg[16];
1293 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1294 MIDI::byte midi_msg[16];
1295 nframes_t outbound_mtc_smpte_frame;
1296 SMPTE::Time transmitting_smpte_time;
1297 int next_quarter_frame_to_send;
1299 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1300 nframes_t _frames_per_hour;
1301 nframes_t _smpte_frames_per_hour;
1302 nframes_t _smpte_offset;
1303 bool _smpte_offset_negative;
1305 /* cache the most-recently requested time conversions. This helps when we
1306 * have multiple clocks showing the same time (e.g. the transport frame) */
1307 bool last_smpte_valid;
1308 nframes_t last_smpte_when;
1309 SMPTE::Time last_smpte;
1311 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1313 int send_full_time_code(nframes_t nframes);
1314 int send_midi_time_code_for_cycle(nframes_t nframes);
1316 nframes_t adjust_apparent_position (nframes_t frames);
1318 void reset_record_status ();
1320 int no_roll (nframes_t nframes, nframes_t offset);
1322 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1323 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1325 struct MIDIRequest {
1338 MIDI::MachineControl::Command mmc_cmd;
1339 nframes_t locate_frame;
1341 // for SendMessage type
1344 MIDI::channel_t chan;
1346 MIDI::EventTwoBytes data;
1357 void *operator new(size_t ignored) {
1358 return pool.alloc ();
1361 void operator delete(void *ptr, size_t size) {
1366 static MultiAllocSingleReleasePool pool;
1369 mutable gint butler_active;
1371 void change_midi_ports ();
1372 int use_config_midi_ports ();
1374 bool waiting_to_start;
1376 void set_play_loop (bool yn);
1377 void overwrite_some_buffers (Diskstream*);
1378 void flush_all_inserts ();
1379 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1380 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1381 void force_locate (nframes_t frame, bool with_roll = false);
1382 void set_diskstream_speed (Diskstream*, float speed);
1383 void set_transport_speed (float speed, bool abort = false);
1384 void stop_transport (bool abort = false);
1385 void start_transport ();
1386 void actually_start_transport ();
1387 void realtime_stop (bool abort);
1388 void non_realtime_start_scrub ();
1389 void non_realtime_set_speed ();
1390 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1391 void non_realtime_overwrite (int entry_request_count, bool& finished);
1392 void butler_transport_work ();
1393 void post_transport ();
1394 void engine_halted ();
1395 void xrun_recovery ();
1397 TempoMap *_tempo_map;
1398 void tempo_map_changed (Change);
1400 /* edit/mix groups */
1402 int load_route_groups (const XMLNode&, bool is_edit);
1403 int load_edit_groups (const XMLNode&);
1404 int load_mix_groups (const XMLNode&);
1407 list<RouteGroup *> edit_groups;
1408 list<RouteGroup *> mix_groups;
1412 SerializedRCUManager<DiskstreamList> diskstreams;
1414 uint32_t dstream_buffer_size;
1415 int load_diskstreams (const XMLNode&);
1419 SerializedRCUManager<RouteList> routes;
1421 void add_routes (RouteList&, bool save = true);
1422 uint32_t destructive_index;
1424 int load_routes (const XMLNode&);
1425 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1429 bool solo_update_disabled;
1430 bool currently_soloing;
1432 void route_mute_changed (void *src);
1433 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1434 void catch_up_on_solo ();
1435 void update_route_solo_state ();
1436 void modify_solo_mute (bool, bool);
1437 void strip_portname_for_solo (string& portname);
1439 /* REGION MANAGEMENT */
1441 mutable Glib::Mutex region_lock;
1442 typedef map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1445 void add_region (boost::shared_ptr<Region>);
1446 void region_changed (Change, boost::weak_ptr<Region>);
1447 void remove_region (boost::weak_ptr<Region>);
1449 int load_regions (const XMLNode& node);
1453 mutable Glib::Mutex source_lock;
1454 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1458 int load_sources (const XMLNode& node);
1459 XMLNode& get_sources_as_xml ();
1461 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1465 mutable Glib::Mutex playlist_lock;
1466 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1467 PlaylistList playlists;
1468 PlaylistList unused_playlists;
1470 int load_playlists (const XMLNode&);
1471 int load_unused_playlists (const XMLNode&);
1472 void remove_playlist (boost::weak_ptr<Playlist>);
1473 void track_playlist (bool, boost::weak_ptr<Playlist>);
1475 boost::shared_ptr<Playlist> playlist_factory (string name);
1476 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1478 void playlist_length_changed ();
1479 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1481 /* NAMED SELECTIONS */
1483 mutable Glib::Mutex named_selection_lock;
1484 typedef set<NamedSelection *> NamedSelectionList;
1485 NamedSelectionList named_selections;
1487 int load_named_selections (const XMLNode&);
1489 NamedSelection *named_selection_factory (string name);
1490 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1492 /* CURVES and AUTOMATION LISTS */
1493 std::map<PBD::ID, Curve*> curves;
1494 std::map<PBD::ID, AutomationList*> automation_lists;
1496 /* DEFAULT FADE CURVES */
1498 float default_fade_steepness;
1499 float default_fade_msecs;
1503 boost::shared_ptr<Auditioner> auditioner;
1504 void set_audition (boost::shared_ptr<Region>);
1505 void non_realtime_set_audition ();
1506 boost::shared_ptr<Region> pending_audition_region;
1512 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1514 /* INSERT AND SEND MANAGEMENT */
1516 list<PortInsert *> _port_inserts;
1517 list<PluginInsert *> _plugin_inserts;
1518 list<Send *> _sends;
1519 boost::dynamic_bitset<uint32_t> send_bitset;
1520 boost::dynamic_bitset<uint32_t> insert_bitset;
1522 uint32_t insert_cnt;
1525 void add_processor (Processor *);
1526 void remove_processor (Processor *);
1530 struct space_and_path {
1531 uint32_t blocks; /* 4kB blocks */
1539 struct space_and_path_ascending_cmp {
1540 bool operator() (space_and_path a, space_and_path b) {
1541 return a.blocks > b.blocks;
1545 void setup_raid_path (string path);
1547 vector<space_and_path> session_dirs;
1548 vector<space_and_path>::iterator last_rr_session_dir;
1549 uint32_t _total_free_4k_blocks;
1550 Glib::Mutex space_lock;
1552 string old_sound_dir (bool with_path = true) const;
1553 string get_best_session_directory_for_new_source ();
1554 void refresh_disk_space ();
1556 mutable gint _playback_load;
1557 mutable gint _capture_load;
1558 mutable gint _playback_load_min;
1559 mutable gint _capture_load_min;
1563 typedef list<Bundle *> BundleList;
1564 mutable Glib::Mutex bundle_lock;
1565 BundleList _bundles;
1566 int load_bundles (const XMLNode&);
1568 void reverse_diskstream_buffers ();
1570 UndoHistory _history;
1571 UndoTransaction* current_trans;
1573 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1574 GlobalRouteMeterState get_global_route_metering ();
1576 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1577 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1579 void set_global_mute (GlobalRouteBooleanState s, void *src);
1580 void set_global_solo (GlobalRouteBooleanState s, void *src);
1581 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1583 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1584 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1585 void reset_jack_connection (jack_client_t* jack);
1586 void record_enable_change_all (bool yn);
1588 XMLNode& state(bool);
1598 Click (nframes_t s, nframes_t d, const Sample *b)
1599 : start (s), duration (d), data (b) { offset = 0; }
1601 void *operator new(size_t ignored) {
1602 return pool.alloc ();
1605 void operator delete(void *ptr, size_t size) {
1613 typedef list<Click*> Clicks;
1617 boost::shared_ptr<IO> _click_io;
1619 Sample* click_emphasis_data;
1620 nframes_t click_length;
1621 nframes_t click_emphasis_length;
1622 mutable Glib::RWLock click_lock;
1624 static const Sample default_click[];
1625 static const nframes_t default_click_length;
1626 static const Sample default_click_emphasis[];
1627 static const nframes_t default_click_emphasis_length;
1630 void setup_click_sounds (int which);
1631 void clear_clicks ();
1632 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1634 vector<Route*> master_outs;
1636 /* range playback */
1638 list<AudioRange> current_audio_range;
1640 void set_play_range (bool yn);
1641 void setup_auto_play ();
1646 boost::shared_ptr<IO> _master_out;
1647 boost::shared_ptr<IO> _control_out;
1649 gain_t* _gain_automation_buffer;
1650 pan_t** _pan_automation_buffer;
1651 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1652 uint32_t _npan_buffers;
1654 nframes_t _automation_interval;
1658 long _vst_callback (VSTPlugin*,
1665 /* number of hardware ports we're using,
1666 based on max (requested,available)
1669 uint32_t n_physical_outputs;
1670 uint32_t n_physical_inputs;
1672 void remove_pending_capture_state ();
1674 int find_all_sources (std::string path, std::set<std::string>& result);
1675 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1677 LayerModel layer_model;
1678 CrossfadeModel xfade_model;
1680 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1681 Glib::Mutex controllables_lock;
1682 Controllables controllables;
1684 void reset_native_file_format();
1685 bool first_file_data_format_reset;
1686 bool first_file_header_format_reset;
1688 void config_changed (const char*);
1690 XMLNode& get_control_protocol_state ();
1694 } // namespace ARDOUR
1696 #endif /* __ardour_session_h__ */