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/weak_ptr.hpp>
31 #include <boost/dynamic_bitset.hpp>
37 #include <glibmm/thread.h>
39 #include <pbd/error.h>
43 #include <pbd/statefuldestructible.h>
45 #include <midi++/types.h>
46 #include <midi++/mmc.h>
48 #include <pbd/stateful.h>
49 #include <pbd/destructible.h>
51 #include <ardour/ardour.h>
52 #include <ardour/configuration.h>
53 #include <ardour/location.h>
54 #include <ardour/gain.h>
55 #include <ardour/io.h>
56 #include <ardour/session_directory.h>
58 #include <ardour/smpte.h>
85 class AudioDiskstream;
87 class AudioFileSource;
104 class ControlProtocolInfo;
110 struct AudioExportSpecification;
118 class Session : public PBD::StatefulDestructible
121 typedef std::pair<boost::weak_ptr<Route>,bool> RouteBooleanState;
122 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
123 typedef std::pair<boost::weak_ptr<Route>,MeterPoint> RouteMeterState;
124 typedef vector<RouteMeterState> GlobalRouteMeterState;
147 InputConfigurationChange,
151 /* only one of each of these events
152 can be queued at any one time
168 nframes_t action_frame;
169 nframes_t target_frame;
179 boost::shared_ptr<Region> region;
181 list<AudioRange> audio_range;
182 list<MusicRange> music_range;
184 Event(Type t, Action a, nframes_t when, nframes_t where, float spd, bool yn = false)
188 target_frame (where),
192 void set_ptr (void* p) {
196 bool before (const Event& other) const {
197 return action_frame < other.action_frame;
200 bool after (const Event& other) const {
201 return action_frame > other.action_frame;
204 static bool compare (const Event *e1, const Event *e2) {
205 return e1->before (*e2);
208 void *operator new (size_t ignored) {
209 return pool.alloc ();
212 void operator delete(void *ptr, size_t size) {
216 static const nframes_t Immediate = 0;
219 static MultiAllocSingleReleasePool pool;
222 /* creating from an XML file */
224 Session (AudioEngine&,
226 string snapshot_name,
227 string* mix_template = 0);
229 /* creating a new Session */
231 Session (AudioEngine&,
233 string snapshot_name,
234 AutoConnectOption input_auto_connect,
235 AutoConnectOption output_auto_connect,
236 uint32_t control_out_channels,
237 uint32_t master_out_channels,
238 uint32_t n_physical_in,
239 uint32_t n_physical_out,
240 nframes_t initial_length);
244 string path() const { return _path; }
245 string name() const { return _name; }
246 string snap_name() const { return _current_snapshot_name; }
247 string raid_path () const;
248 string export_dir () const;
250 void set_snap_name ();
254 bool dirty() const { return _state_of_the_state & Dirty; }
255 void set_deletion_in_progress ();
256 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
257 sigc::signal<void> DirtyChanged;
259 std::string sound_dir (bool with_path = true) const;
260 std::string peak_dir () const;
261 std::string automation_dir () const;
263 static string suffixed_search_path (std::string suffix, bool data);
264 static string control_protocol_path ();
265 static string template_path ();
266 static string template_dir ();
267 static void get_template_list (list<string>&);
269 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
270 static string change_midi_path_by_name (string oldpath, string oldname, string newname, bool destructive);
272 string peak_path_from_audio_path (string) const;
273 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
274 string midi_path_from_name (string);
276 void process (nframes_t nframes);
278 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
279 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
280 BufferSet& get_send_buffers (ChanCount count = ChanCount::ZERO);
282 void add_diskstream (boost::shared_ptr<Diskstream>);
283 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
284 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
286 bool have_captured() const { return _have_captured; }
288 void refill_all_diskstream_buffers ();
289 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
291 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
292 uint32_t n_diskstreams() const;
294 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
295 typedef std::list<boost::shared_ptr<Route> > RouteList;
297 boost::shared_ptr<RouteList> get_routes() const {
298 return routes.reader ();
301 uint32_t nroutes() const { return routes.reader()->size(); }
302 uint32_t ntracks () const;
303 uint32_t nbusses () const;
305 struct RoutePublicOrderSorter {
306 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
309 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
310 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
311 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
313 boost::shared_ptr<Route> route_by_name (string);
314 boost::shared_ptr<Route> route_by_id (PBD::ID);
315 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
317 bool route_name_unique (string) const;
319 bool get_record_enabled() const {
320 return (record_status () >= Enabled);
323 RecordState record_status() const {
324 return (RecordState) g_atomic_int_get (&_record_status);
327 bool actively_recording () {
328 return record_status() == Recording;
331 bool record_enabling_legal () const;
332 void maybe_enable_record ();
333 void disable_record (bool rt_context, bool force = false);
334 void step_back_from_record ();
336 void maybe_write_autosave ();
338 /* Proxy signal for region hidden changes */
340 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
342 /* Emitted when all i/o connections are complete */
344 sigc::signal<void> IOConnectionsComplete;
346 /* Record status signals */
348 sigc::signal<void> RecordStateChanged;
350 /* Transport mechanism signals */
352 sigc::signal<void> TransportStateChange; /* generic */
353 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
354 sigc::signal<void> DurationChanged;
355 sigc::signal<void> HaltOnXrun;
357 sigc::signal<void,RouteList&> RouteAdded;
359 void request_roll ();
360 void request_bounded_roll (nframes_t start, nframes_t end);
361 void request_stop (bool abort = false);
362 void request_locate (nframes_t frame, bool with_roll = false);
364 void request_play_loop (bool yn);
365 bool get_play_loop () const { return play_loop; }
367 nframes_t last_transport_start() const { return _last_roll_location; }
368 void goto_end () { request_locate (end_location->start(), false);}
369 void goto_start () { request_locate (start_location->start(), false); }
370 void set_session_start (nframes_t start) { start_location->set_start(start); }
371 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
372 void use_rf_shuttle_speed ();
373 void allow_auto_play (bool yn);
374 void request_transport_speed (float speed);
375 void request_overwrite_buffer (Diskstream*);
376 void request_diskstream_speed (Diskstream&, float speed);
377 void request_input_change_handling ();
379 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
380 bool transport_locked () const;
383 //int wipe_diskstream (AudioDiskstream *);
385 int remove_region_from_region_list (boost::shared_ptr<Region>);
387 nframes_t get_maximum_extent () const;
388 nframes_t current_end_frame() const { return end_location->start(); }
389 nframes_t current_start_frame() const { return start_location->start(); }
390 nframes_t frame_rate() const { return _current_frame_rate; }
391 nframes_t frames_per_hour() const { return _frames_per_hour; }
393 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
394 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
396 float smpte_frames_per_second() const;
397 bool smpte_drop_frames() const;
401 Locations *locations() { return &_locations; }
403 sigc::signal<void,Location*> auto_loop_location_changed;
404 sigc::signal<void,Location*> auto_punch_location_changed;
405 sigc::signal<void> locations_modified;
407 void set_auto_punch_location (Location *);
408 void set_auto_loop_location (Location *);
409 int location_name(string& result, string base = string(""));
411 void reset_input_monitor_state ();
413 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
414 void remove_event (nframes_t frame, Event::Type type);
415 void clear_events (Event::Type type);
417 nframes_t get_block_size() const { return current_block_size; }
418 nframes_t worst_output_latency () const { return _worst_output_latency; }
419 nframes_t worst_input_latency () const { return _worst_input_latency; }
420 nframes_t worst_track_latency () const { return _worst_track_latency; }
422 int save_state (string snapshot_name, bool pending = false);
423 int restore_state (string snapshot_name);
424 int save_template (string template_name);
425 int save_history (string snapshot_name = "");
426 int restore_history (string snapshot_name);
427 void remove_state (string snapshot_name);
428 void rename_state (string old_name, string new_name);
430 static int rename_template (string old_name, string new_name);
432 static int delete_template (string name);
434 sigc::signal<void,string> StateSaved;
435 sigc::signal<void> StateReady;
437 vector<string*>* possible_states() const;
438 static vector<string*>* possible_states(string path);
440 XMLNode& get_state();
441 int set_state(const XMLNode& node); // not idempotent
442 XMLNode& get_template();
444 void add_instant_xml (XMLNode&, const std::string& dir);
446 enum StateOfTheState {
451 InitialConnecting = 0x8,
456 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
458 RouteGroup* add_edit_group (string);
459 RouteGroup* add_mix_group (string);
461 void remove_edit_group (RouteGroup&);
462 void remove_mix_group (RouteGroup&);
464 RouteGroup *mix_group_by_name (string);
465 RouteGroup *edit_group_by_name (string);
467 sigc::signal<void,RouteGroup*> edit_group_added;
468 sigc::signal<void,RouteGroup*> mix_group_added;
469 sigc::signal<void> edit_group_removed;
470 sigc::signal<void> mix_group_removed;
472 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
473 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
478 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
479 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
484 /* fundamental operations. duh. */
486 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
487 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
489 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (TrackMode mode = Normal, uint32_t how_many = 1);
490 //boost::shared_ptr<Route> new_midi_route (uint32_t how_many = 1);
492 void remove_route (boost::shared_ptr<Route>);
493 void resort_routes ();
494 void resort_routes_using (boost::shared_ptr<RouteList>);
496 void set_remote_control_ids();
498 AudioEngine &engine() { return _engine; };
505 nframes_t transport_frame () const {return _transport_frame; }
506 nframes_t audible_frame () const;
520 int set_smpte_format (SmpteFormat);
521 void sync_time_vars();
523 void bbt_time (nframes_t when, BBT_Time&);
524 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
525 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
526 void smpte_time (SMPTE::Time &);
527 void smpte_time (nframes_t when, SMPTE::Time&);
528 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
530 void smpte_duration (nframes_t, SMPTE::Time&) const;
531 void smpte_duration_string (char *, nframes_t) const;
533 void set_smpte_offset (nframes_t);
534 nframes_t smpte_offset () const { return _smpte_offset; }
535 void set_smpte_offset_negative (bool);
536 bool smpte_offset_negative () const { return _smpte_offset_negative; }
538 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
540 static sigc::signal<void> StartTimeChanged;
541 static sigc::signal<void> EndTimeChanged;
542 static sigc::signal<void> SMPTEOffsetChanged;
544 void request_slave_source (SlaveSource);
545 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
547 float transport_speed() const { return _transport_speed; }
548 bool transport_stopped() const { return _transport_speed == 0.0f; }
549 bool transport_rolling() const { return _transport_speed != 0.0f; }
551 int jack_slave_sync (nframes_t);
553 TempoMap& tempo_map() { return *_tempo_map; }
557 sigc::signal<void,boost::shared_ptr<Region> > RegionAdded;
558 sigc::signal<void,boost::shared_ptr<Region> > RegionRemoved;
560 int region_name (string& result, string base = string(""), bool newlevel = false) const;
561 string new_region_name (string);
562 string path_from_region_name (string name, string identifier);
564 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>);
566 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
568 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
569 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
570 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
572 template<class T> void foreach_region (T *obj, void (T::*func)(boost::shared_ptr<Region>));
574 /* source management */
576 struct import_status : public InterThreadInfo {
582 volatile bool freeze;
583 std::vector<Glib::ustring> paths;
586 std::vector<boost::shared_ptr<Region> > new_regions;
589 int import_audiofile (import_status&);
590 bool sample_rate_convert (import_status&, string infile, string& outfile);
591 string build_tmp_convert_name (string file);
593 SlaveSource post_export_slave;
594 nframes_t post_export_position;
596 int start_audio_export (ARDOUR::AudioExportSpecification&);
597 int stop_audio_export (ARDOUR::AudioExportSpecification&);
598 void finalize_audio_export ();
600 void add_source (boost::shared_ptr<Source>);
601 void remove_source (boost::weak_ptr<Source>);
603 struct cleanup_report {
604 vector<string> paths;
608 int cleanup_sources (cleanup_report&);
609 int cleanup_trash_sources (cleanup_report&);
611 int destroy_region (boost::shared_ptr<Region>);
612 int destroy_regions (std::list<boost::shared_ptr<Region> >);
614 int remove_last_capture ();
616 /* handlers should return -1 for "stop cleanup", 0 for
617 "yes, delete this playlist" and 1 for "no, don't delete
621 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
623 /* handlers should return !0 for use pending state, 0 for
627 static sigc::signal<int> AskAboutPendingState;
629 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
631 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
633 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
634 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
636 /* playlist management */
638 boost::shared_ptr<Playlist> playlist_by_name (string name);
639 void add_playlist (boost::shared_ptr<Playlist>);
640 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
641 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
643 uint32_t n_playlists() const;
645 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
646 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
648 /* named selections */
650 NamedSelection* named_selection_by_name (string name);
651 void add_named_selection (NamedSelection *);
652 void remove_named_selection (NamedSelection *);
654 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
655 sigc::signal<void> NamedSelectionAdded;
656 sigc::signal<void> NamedSelectionRemoved;
658 /* Curves and AutomationLists (TODO when they go away) */
659 void add_curve(Curve*);
660 void add_automation_list(AutomationList*);
664 float get_default_fade_length () const { return default_fade_msecs; }
665 float get_default_fade_steepness () const { return default_fade_steepness; }
666 void set_default_fade (float steepness, float msecs);
670 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
671 void audition_playlist ();
672 void audition_region (boost::shared_ptr<Region>);
673 void cancel_audition ();
674 bool is_auditioning () const;
676 sigc::signal<void,bool> AuditionActive;
678 /* flattening stuff */
680 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite, vector<boost::shared_ptr<Source> >&,
681 InterThreadInfo& wot);
682 int freeze (InterThreadInfo&);
684 /* session-wide solo/mute/rec-enable */
686 bool soloing() const { return currently_soloing; }
688 void set_all_solo (bool);
689 void set_all_mute (bool);
691 sigc::signal<void,bool> SoloActive;
692 sigc::signal<void> SoloChanged;
694 void record_disenable_all ();
695 void record_enable_all ();
697 /* control/master out */
699 boost::shared_ptr<IO> control_out() const { return _control_out; }
700 boost::shared_ptr<IO> master_out() const { return _master_out; }
702 /* insert/send management */
704 uint32_t n_port_inserts() const { return _port_inserts.size(); }
705 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
706 uint32_t n_sends() const { return _sends.size(); }
708 uint32_t next_send_id();
709 uint32_t next_insert_id();
710 void mark_send_id (uint32_t);
711 void mark_insert_id (uint32_t);
713 /* s/w "RAID" management */
715 nframes_t available_capture_duration();
719 template<class T> void foreach_bundle (T *obj, void (T::*func)(Bundle *));
720 void add_bundle (Bundle *);
721 void remove_bundle (Bundle *);
722 Bundle *bundle_by_name (string) const;
724 sigc::signal<void,Bundle *> BundleAdded;
725 sigc::signal<void,Bundle *> BundleRemoved;
729 int set_mtc_port (string port_tag);
730 int set_mmc_port (string port_tag);
731 int set_midi_port (string port_tag);
732 MIDI::Port *mtc_port() const { return _mtc_port; }
733 MIDI::Port *mmc_port() const { return _mmc_port; }
734 MIDI::Port *midi_port() const { return _midi_port; }
736 sigc::signal<void> MTC_PortChanged;
737 sigc::signal<void> MMC_PortChanged;
738 sigc::signal<void> MIDI_PortChanged;
740 void set_trace_midi_input (bool, MIDI::Port* port = 0);
741 void set_trace_midi_output (bool, MIDI::Port* port = 0);
743 bool get_trace_midi_input(MIDI::Port *port = 0);
744 bool get_trace_midi_output(MIDI::Port *port = 0);
746 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
748 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
750 void set_mmc_device_id (uint32_t id);
754 void start_scrub (nframes_t where);
756 void set_scrub_speed (float);
757 nframes_t scrub_buffer_size() const;
758 sigc::signal<void> ScrubReady;
760 /* History (for editors, mixers, UIs etc.) */
762 /** Undo some transactions.
763 * @param n Number of transactions to undo.
765 void undo (uint32_t n) {
769 void redo (uint32_t n) {
773 UndoHistory& history() { return _history; }
775 uint32_t undo_depth() const { return _history.undo_depth(); }
776 uint32_t redo_depth() const { return _history.redo_depth(); }
777 string next_undo() const { return _history.next_undo(); }
778 string next_redo() const { return _history.next_redo(); }
780 void begin_reversible_command (string cmd_name);
781 void commit_reversible_command (Command* cmd = 0);
783 void add_command (Command *const cmd) {
784 current_trans->add_command (cmd);
787 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
789 // these commands are implemented in libs/ardour/session_command.cc
790 Command* memento_command_factory(XMLNode* n);
791 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
793 Command* global_state_command_factory (const XMLNode& n);
795 class GlobalRouteStateCommand : public Command
798 GlobalRouteStateCommand (Session&, void*);
799 GlobalRouteStateCommand (Session&, const XMLNode& node);
800 int set_state (const XMLNode&);
801 XMLNode& get_state ();
804 GlobalRouteBooleanState before, after;
810 class GlobalSoloStateCommand : public GlobalRouteStateCommand
813 GlobalSoloStateCommand (Session &, void *src);
814 GlobalSoloStateCommand (Session&, const XMLNode&);
815 void operator()(); //redo
817 XMLNode &get_state();
821 class GlobalMuteStateCommand : public GlobalRouteStateCommand
824 GlobalMuteStateCommand(Session &, void *src);
825 GlobalMuteStateCommand (Session&, const XMLNode&);
826 void operator()(); // redo
828 XMLNode &get_state();
832 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
835 GlobalRecordEnableStateCommand(Session &, void *src);
836 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
837 void operator()(); // redo
839 XMLNode &get_state();
843 class GlobalMeteringStateCommand : public Command
846 GlobalMeteringStateCommand(Session &, void *src);
847 GlobalMeteringStateCommand (Session&, const XMLNode&);
850 XMLNode &get_state();
851 int set_state (const XMLNode&);
857 GlobalRouteMeterState before;
858 GlobalRouteMeterState after;
863 boost::shared_ptr<IO> click_io() { return _click_io; }
867 struct TimeStretchRequest {
868 boost::shared_ptr<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 () {}
878 boost::shared_ptr<AudioRegion> tempoize_region (TimeStretchRequest&);
880 /* disk, buffer loads */
882 uint32_t playback_load ();
883 uint32_t capture_load ();
884 uint32_t playback_load_min ();
885 uint32_t capture_load_min ();
887 void reset_playback_load_min ();
888 void reset_capture_load_min ();
890 float read_data_rate () const;
891 float write_data_rate () const;
895 void set_audio_range (list<AudioRange>&);
896 void set_music_range (list<MusicRange>&);
898 void request_play_range (bool yn);
899 bool get_play_range () const { return _play_range; }
901 /* buffers for gain and pan */
903 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
904 pan_t** pan_automation_buffer () const { return _pan_automation_buffer; }
906 /* buffers for conversion */
915 static long vst_callback (AEffect* effect,
922 static sigc::signal<void> SendFeedback;
926 PBD::Controllable* controllable_by_id (const PBD::ID&);
928 void add_controllable (PBD::Controllable*);
929 void remove_controllable (PBD::Controllable*);
932 friend class AudioEngine;
933 void set_block_size (nframes_t nframes);
934 void set_frame_rate (nframes_t nframes);
937 friend class Diskstream;
939 void wait_till_butler_finished();
943 void schedule_curve_reallocation ();
944 void update_latency_compensation (bool, bool);
949 void initialize_start_and_end_locations(nframes_t start, nframes_t end);
950 bool create_session_file();
951 bool create_session_file_from_template (const string& template_path);
953 nframes_t compute_initial_length ();
956 PendingDeclickIn = 0x1,
957 PendingDeclickOut = 0x2,
958 StopPendingCapture = 0x4,
959 AutoReturning = 0x10,
960 PendingLocate = 0x20,
961 PendingSetLoop = 0x40
964 /* stuff used in process() should be close together to
968 typedef void (Session::*process_function_type)(nframes_t);
970 AudioEngine &_engine;
971 mutable gint processing_prohibited;
972 /// the function called when the main JACK process callback happens
973 process_function_type process_function;
974 process_function_type last_process_function;
975 bool waiting_for_sync_offset;
976 nframes_t _base_frame_rate;
977 nframes_t _current_frame_rate; //this includes video pullup offset
978 int transport_sub_state;
979 mutable gint _record_status;
980 nframes_t _transport_frame;
981 Location* end_location;
982 Location* start_location;
984 volatile float _transport_speed;
985 volatile float _desired_transport_speed;
986 float _last_transport_speed;
987 bool auto_play_legal;
988 nframes_t _last_slave_transport_frame;
989 nframes_t maximum_output_latency;
990 nframes_t last_stop_frame;
991 BufferSet* _scratch_buffers;
992 BufferSet* _silent_buffers;
993 BufferSet* _send_buffers;
994 nframes_t current_block_size;
995 nframes_t _worst_output_latency;
996 nframes_t _worst_input_latency;
997 nframes_t _worst_track_latency;
1000 float _meter_falloff;
1001 bool _end_location_is_free;
1003 void set_worst_io_latencies ();
1004 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1005 set_worst_io_latencies ();
1008 void update_latency_compensation_proxy (void* ignored);
1010 void ensure_buffers (ChanCount howmany);
1012 void process_scrub (nframes_t);
1013 void process_without_events (nframes_t);
1014 void process_with_events (nframes_t);
1015 void process_audition (nframes_t);
1016 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1018 /* slave tracking */
1020 static const int delta_accumulator_size = 25;
1021 int delta_accumulator_cnt;
1022 long delta_accumulator[delta_accumulator_size];
1023 long average_slave_delta;
1025 bool have_first_delta_accumulator;
1033 SlaveState slave_state;
1034 nframes_t slave_wait_end;
1036 void reset_slave_state ();
1037 bool follow_slave (nframes_t, nframes_t);
1038 void set_slave_source (SlaveSource);
1041 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1043 void prepare_diskstreams ();
1044 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1045 int process_routes (nframes_t, nframes_t);
1046 int silent_process_routes (nframes_t, nframes_t);
1048 bool get_rec_monitors_input () {
1049 if (actively_recording()) {
1052 if (Config->get_auto_input()) {
1060 int get_transport_declick_required () {
1062 if (transport_sub_state & PendingDeclickIn) {
1063 transport_sub_state &= ~PendingDeclickIn;
1065 } else if (transport_sub_state & PendingDeclickOut) {
1072 bool maybe_stop (nframes_t limit) {
1073 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1080 bool maybe_sync_start (nframes_t&, nframes_t&);
1082 void check_declick_out ();
1084 MIDI::MachineControl* mmc;
1085 MIDI::Port* _mmc_port;
1086 MIDI::Port* _mtc_port;
1087 MIDI::Port* _midi_port;
1090 bool session_send_mmc;
1091 bool session_send_mtc;
1092 bool session_midi_feedback;
1095 nframes_t last_loopend;
1097 SessionDirectory _session_dir;
1099 RingBuffer<Event*> pending_events;
1102 void when_engine_running ();
1103 void graph_reordered ();
1105 string _current_snapshot_name;
1107 XMLTree* state_tree;
1108 bool state_was_pending;
1109 StateOfTheState _state_of_the_state;
1112 int load_options (const XMLNode&);
1113 XMLNode& get_options () const;
1114 int load_state (string snapshot_name);
1115 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1117 nframes_t _last_roll_location;
1118 nframes_t _last_record_location;
1119 bool pending_locate_roll;
1120 nframes_t pending_locate_frame;
1122 bool pending_locate_flush;
1124 bool pending_auto_loop;
1126 Sample* butler_mixdown_buffer;
1127 float* butler_gain_buffer;
1128 pthread_t butler_thread;
1129 Glib::Mutex butler_request_lock;
1130 Glib::Cond butler_paused;
1131 bool butler_should_run;
1132 mutable gint butler_should_do_transport_work;
1133 int butler_request_pipe[2];
1135 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1137 struct ButlerRequest {
1146 enum PostTransportWork {
1147 PostTransportStop = 0x1,
1148 PostTransportDisableRecord = 0x2,
1149 PostTransportPosition = 0x8,
1150 PostTransportDidRecord = 0x20,
1151 PostTransportDuration = 0x40,
1152 PostTransportLocate = 0x80,
1153 PostTransportRoll = 0x200,
1154 PostTransportAbort = 0x800,
1155 PostTransportOverWrite = 0x1000,
1156 PostTransportSpeed = 0x2000,
1157 PostTransportAudition = 0x4000,
1158 PostTransportScrub = 0x8000,
1159 PostTransportReverse = 0x10000,
1160 PostTransportInputChange = 0x20000,
1161 PostTransportCurveRealloc = 0x40000
1164 static const PostTransportWork ProcessCannotProceedMask =
1165 PostTransportWork (PostTransportInputChange|
1167 PostTransportReverse|
1168 PostTransportCurveRealloc|
1170 PostTransportAudition|
1171 PostTransportLocate|
1174 PostTransportWork post_transport_work;
1176 void summon_butler ();
1177 void schedule_butler_transport_work ();
1178 int start_butler_thread ();
1179 void terminate_butler_thread ();
1180 static void *_butler_thread_work (void *arg);
1181 void* butler_thread_work ();
1183 uint32_t cumulative_rf_motion;
1186 void set_rf_speed (float speed);
1187 void reset_rf_scale (nframes_t frames_moved);
1189 Locations _locations;
1190 void locations_changed ();
1191 void locations_added (Location*);
1192 void handle_locations_changed (Locations::LocationList&);
1194 sigc::connection auto_punch_start_changed_connection;
1195 sigc::connection auto_punch_end_changed_connection;
1196 sigc::connection auto_punch_changed_connection;
1197 void auto_punch_start_changed (Location *);
1198 void auto_punch_end_changed (Location *);
1199 void auto_punch_changed (Location *);
1201 sigc::connection auto_loop_start_changed_connection;
1202 sigc::connection auto_loop_end_changed_connection;
1203 sigc::connection auto_loop_changed_connection;
1204 void auto_loop_changed (Location *);
1206 typedef list<Event *> Events;
1208 Events immediate_events;
1209 Events::iterator next_event;
1211 /* there can only ever be one of each of these */
1213 Event *auto_loop_event;
1214 Event *punch_out_event;
1215 Event *punch_in_event;
1219 void dump_events () const;
1220 void queue_event (Event *ev);
1221 void merge_event (Event*);
1222 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1223 bool _replace_event (Event*);
1224 bool _remove_event (Event *);
1225 void _clear_event_type (Event::Type);
1227 void first_stage_init (string path, string snapshot_name);
1228 int second_stage_init (bool new_tracks);
1229 void find_current_end ();
1230 void remove_empty_sounds ();
1232 void setup_midi_control ();
1233 //int midi_read (MIDI::Port *);
1235 void enable_record ();
1237 void increment_transport_position (uint32_t val) {
1238 if (max_frames - val < _transport_frame) {
1239 _transport_frame = max_frames;
1241 _transport_frame += val;
1245 void decrement_transport_position (uint32_t val) {
1246 if (val < _transport_frame) {
1247 _transport_frame -= val;
1249 _transport_frame = 0;
1253 void post_transport_motion ();
1254 static void *session_loader_thread (void *arg);
1258 void set_next_event ();
1259 void process_event (Event *ev);
1261 /* MIDI Machine Control */
1263 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1264 //void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1265 //void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1267 void spp_start (MIDI::Parser&);
1268 void spp_continue (MIDI::Parser&);
1269 void spp_stop (MIDI::Parser&);
1271 void mmc_deferred_play (MIDI::MachineControl &);
1272 void mmc_stop (MIDI::MachineControl &);
1273 void mmc_step (MIDI::MachineControl &, int);
1274 void mmc_pause (MIDI::MachineControl &);
1275 void mmc_record_pause (MIDI::MachineControl &);
1276 void mmc_record_strobe (MIDI::MachineControl &);
1277 void mmc_record_exit (MIDI::MachineControl &);
1278 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1279 void mmc_fast_forward (MIDI::MachineControl &);
1280 void mmc_rewind (MIDI::MachineControl &);
1281 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1282 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1283 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1285 struct timeval last_mmc_step;
1288 typedef sigc::slot<bool> MidiTimeoutCallback;
1289 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1291 MidiTimeoutList midi_timeouts;
1292 bool mmc_step_timeout ();
1294 MIDI::byte mmc_buffer[32];
1295 MIDI::byte mtc_msg[16];
1296 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1297 MIDI::byte midi_msg[16];
1298 nframes_t outbound_mtc_smpte_frame;
1299 SMPTE::Time transmitting_smpte_time;
1300 int next_quarter_frame_to_send;
1302 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1303 nframes_t _frames_per_hour;
1304 nframes_t _smpte_frames_per_hour;
1305 nframes_t _smpte_offset;
1306 bool _smpte_offset_negative;
1308 /* cache the most-recently requested time conversions. This helps when we
1309 * have multiple clocks showing the same time (e.g. the transport frame) */
1310 bool last_smpte_valid;
1311 nframes_t last_smpte_when;
1312 SMPTE::Time last_smpte;
1314 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1316 int send_full_time_code(nframes_t nframes);
1317 int send_midi_time_code_for_cycle(nframes_t nframes);
1319 nframes_t adjust_apparent_position (nframes_t frames);
1321 void reset_record_status ();
1323 int no_roll (nframes_t nframes, nframes_t offset);
1325 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1326 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1328 struct MIDIRequest {
1341 MIDI::MachineControl::Command mmc_cmd;
1342 nframes_t locate_frame;
1344 // for SendMessage type
1347 MIDI::channel_t chan;
1349 MIDI::EventTwoBytes data;
1360 void *operator new(size_t ignored) {
1361 return pool.alloc ();
1364 void operator delete(void *ptr, size_t size) {
1369 static MultiAllocSingleReleasePool pool;
1372 mutable gint butler_active;
1374 void change_midi_ports ();
1375 int use_config_midi_ports ();
1377 bool waiting_to_start;
1379 void set_play_loop (bool yn);
1380 void overwrite_some_buffers (Diskstream*);
1381 void flush_all_redirects ();
1382 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1383 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1384 void force_locate (nframes_t frame, bool with_roll = false);
1385 void set_diskstream_speed (Diskstream*, float speed);
1386 void set_transport_speed (float speed, bool abort = false);
1387 void stop_transport (bool abort = false);
1388 void start_transport ();
1389 void actually_start_transport ();
1390 void realtime_stop (bool abort);
1391 void non_realtime_start_scrub ();
1392 void non_realtime_set_speed ();
1393 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1394 void non_realtime_overwrite (int entry_request_count, bool& finished);
1395 void butler_transport_work ();
1396 void post_transport ();
1397 void engine_halted ();
1398 void xrun_recovery ();
1400 TempoMap *_tempo_map;
1401 void tempo_map_changed (Change);
1403 /* edit/mix groups */
1405 int load_route_groups (const XMLNode&, bool is_edit);
1406 int load_edit_groups (const XMLNode&);
1407 int load_mix_groups (const XMLNode&);
1410 list<RouteGroup *> edit_groups;
1411 list<RouteGroup *> mix_groups;
1415 SerializedRCUManager<DiskstreamList> diskstreams;
1417 uint32_t dstream_buffer_size;
1418 int load_diskstreams (const XMLNode&);
1422 SerializedRCUManager<RouteList> routes;
1424 void add_routes (RouteList&, bool save = true);
1425 uint32_t destructive_index;
1427 int load_routes (const XMLNode&);
1428 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1432 bool solo_update_disabled;
1433 bool currently_soloing;
1435 void route_mute_changed (void *src);
1436 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1437 void catch_up_on_solo ();
1438 void update_route_solo_state ();
1439 void modify_solo_mute (bool, bool);
1440 void strip_portname_for_solo (string& portname);
1442 /* REGION MANAGEMENT */
1444 mutable Glib::Mutex region_lock;
1445 typedef map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1448 void add_region (boost::shared_ptr<Region>);
1449 void region_changed (Change, boost::weak_ptr<Region>);
1450 void remove_region (boost::weak_ptr<Region>);
1452 int load_regions (const XMLNode& node);
1456 mutable Glib::Mutex source_lock;
1457 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1461 int load_sources (const XMLNode& node);
1462 XMLNode& get_sources_as_xml ();
1464 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1468 mutable Glib::Mutex playlist_lock;
1469 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1470 PlaylistList playlists;
1471 PlaylistList unused_playlists;
1473 int load_playlists (const XMLNode&);
1474 int load_unused_playlists (const XMLNode&);
1475 void remove_playlist (boost::weak_ptr<Playlist>);
1476 void track_playlist (bool, boost::weak_ptr<Playlist>);
1478 boost::shared_ptr<Playlist> playlist_factory (string name);
1479 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1481 void playlist_length_changed ();
1482 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1484 /* NAMED SELECTIONS */
1486 mutable Glib::Mutex named_selection_lock;
1487 typedef set<NamedSelection *> NamedSelectionList;
1488 NamedSelectionList named_selections;
1490 int load_named_selections (const XMLNode&);
1492 NamedSelection *named_selection_factory (string name);
1493 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1495 /* CURVES and AUTOMATION LISTS */
1496 std::map<PBD::ID, Curve*> curves;
1497 std::map<PBD::ID, AutomationList*> automation_lists;
1499 /* DEFAULT FADE CURVES */
1501 float default_fade_steepness;
1502 float default_fade_msecs;
1506 boost::shared_ptr<Auditioner> auditioner;
1507 void set_audition (boost::shared_ptr<Region>);
1508 void non_realtime_set_audition ();
1509 boost::shared_ptr<Region> pending_audition_region;
1515 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1517 /* INSERT AND SEND MANAGEMENT */
1519 list<PortInsert *> _port_inserts;
1520 list<PluginInsert *> _plugin_inserts;
1521 list<Send *> _sends;
1522 boost::dynamic_bitset<uint32_t> send_bitset;
1523 boost::dynamic_bitset<uint32_t> insert_bitset;
1525 uint32_t insert_cnt;
1528 void add_redirect (Redirect *);
1529 void remove_redirect (Redirect *);
1533 struct space_and_path {
1534 uint32_t blocks; /* 4kB blocks */
1542 struct space_and_path_ascending_cmp {
1543 bool operator() (space_and_path a, space_and_path b) {
1544 return a.blocks > b.blocks;
1548 void setup_raid_path (string path);
1550 vector<space_and_path> session_dirs;
1551 vector<space_and_path>::iterator last_rr_session_dir;
1552 uint32_t _total_free_4k_blocks;
1553 Glib::Mutex space_lock;
1555 string old_sound_dir (bool with_path = true) const;
1556 string discover_best_sound_dir (bool destructive = false);
1557 int ensure_sound_dir (string, string&);
1558 void refresh_disk_space ();
1560 mutable gint _playback_load;
1561 mutable gint _capture_load;
1562 mutable gint _playback_load_min;
1563 mutable gint _capture_load_min;
1567 typedef list<Bundle *> BundleList;
1568 mutable Glib::Mutex bundle_lock;
1569 BundleList _bundles;
1570 int load_bundles (const XMLNode&);
1572 void reverse_diskstream_buffers ();
1574 UndoHistory _history;
1575 UndoTransaction* current_trans;
1577 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1578 GlobalRouteMeterState get_global_route_metering ();
1580 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1581 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1583 void set_global_mute (GlobalRouteBooleanState s, void *src);
1584 void set_global_solo (GlobalRouteBooleanState s, void *src);
1585 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1587 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1588 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1589 void reset_jack_connection (jack_client_t* jack);
1590 void record_enable_change_all (bool yn);
1592 XMLNode& state(bool);
1602 Click (nframes_t s, nframes_t d, const Sample *b)
1603 : start (s), duration (d), data (b) { offset = 0; }
1605 void *operator new(size_t ignored) {
1606 return pool.alloc ();
1609 void operator delete(void *ptr, size_t size) {
1617 typedef list<Click*> Clicks;
1621 boost::shared_ptr<IO> _click_io;
1623 Sample* click_emphasis_data;
1624 nframes_t click_length;
1625 nframes_t click_emphasis_length;
1626 mutable Glib::RWLock click_lock;
1628 static const Sample default_click[];
1629 static const nframes_t default_click_length;
1630 static const Sample default_click_emphasis[];
1631 static const nframes_t default_click_emphasis_length;
1634 void setup_click_sounds (int which);
1635 void clear_clicks ();
1636 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1638 vector<Route*> master_outs;
1640 /* range playback */
1642 list<AudioRange> current_audio_range;
1644 void set_play_range (bool yn);
1645 void setup_auto_play ();
1650 boost::shared_ptr<IO> _master_out;
1651 boost::shared_ptr<IO> _control_out;
1653 gain_t* _gain_automation_buffer;
1654 pan_t** _pan_automation_buffer;
1655 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1656 uint32_t _npan_buffers;
1660 long _vst_callback (VSTPlugin*,
1667 /* number of hardware ports we're using,
1668 based on max (requested,available)
1671 uint32_t n_physical_outputs;
1672 uint32_t n_physical_inputs;
1674 void remove_pending_capture_state ();
1676 int find_all_sources (std::string path, std::set<std::string>& result);
1677 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1679 LayerModel layer_model;
1680 CrossfadeModel xfade_model;
1682 typedef std::set<PBD::Controllable*> Controllables;
1683 Glib::Mutex controllables_lock;
1684 Controllables controllables;
1686 void reset_native_file_format();
1687 bool first_file_data_format_reset;
1688 bool first_file_header_format_reset;
1690 void config_changed (const char*);
1692 XMLNode& get_control_protocol_state ();
1696 } // namespace ARDOUR
1698 #endif /* __ardour_session_h__ */