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 Glib::ustring peak_path (Glib::ustring) const;
266 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
267 static string change_midi_path_by_name (string oldpath, string oldname, string newname, bool destructive);
269 string peak_path_from_audio_path (string) const;
270 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
271 string midi_path_from_name (string);
273 void process (nframes_t nframes);
275 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
276 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
277 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
279 void add_diskstream (boost::shared_ptr<Diskstream>);
280 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
281 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
283 bool have_captured() const { return _have_captured; }
285 void refill_all_diskstream_buffers ();
286 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
288 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
289 uint32_t n_diskstreams() const;
291 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
292 typedef std::list<boost::shared_ptr<Route> > RouteList;
294 boost::shared_ptr<RouteList> get_routes() const {
295 return routes.reader ();
298 uint32_t nroutes() const { return routes.reader()->size(); }
299 uint32_t ntracks () const;
300 uint32_t nbusses () const;
302 struct RoutePublicOrderSorter {
303 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
306 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
307 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
308 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
310 boost::shared_ptr<Route> route_by_name (string);
311 boost::shared_ptr<Route> route_by_id (PBD::ID);
312 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
314 bool route_name_unique (string) const;
316 bool get_record_enabled() const {
317 return (record_status () >= Enabled);
320 RecordState record_status() const {
321 return (RecordState) g_atomic_int_get (&_record_status);
324 bool actively_recording () {
325 return record_status() == Recording;
328 bool record_enabling_legal () const;
329 void maybe_enable_record ();
330 void disable_record (bool rt_context, bool force = false);
331 void step_back_from_record ();
333 void maybe_write_autosave ();
335 /* Proxy signal for region hidden changes */
337 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
339 /* Emitted when all i/o connections are complete */
341 sigc::signal<void> IOConnectionsComplete;
343 /* Record status signals */
345 sigc::signal<void> RecordStateChanged;
347 /* Transport mechanism signals */
349 sigc::signal<void> TransportStateChange; /* generic */
350 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
351 sigc::signal<void> DurationChanged;
352 sigc::signal<void> HaltOnXrun;
353 sigc::signal<void> TransportLooped;
355 sigc::signal<void,RouteList&> RouteAdded;
357 void request_roll ();
358 void request_bounded_roll (nframes_t start, nframes_t end);
359 void request_stop (bool abort = false);
360 void request_locate (nframes_t frame, bool with_roll = false);
362 void request_play_loop (bool yn);
363 bool get_play_loop () const { return play_loop; }
365 nframes_t last_transport_start() const { return _last_roll_location; }
366 void goto_end () { request_locate (end_location->start(), false);}
367 void goto_start () { request_locate (start_location->start(), false); }
368 void set_session_start (nframes_t start) { start_location->set_start(start); }
369 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
370 void use_rf_shuttle_speed ();
371 void allow_auto_play (bool yn);
372 void request_transport_speed (float speed);
373 void request_overwrite_buffer (Diskstream*);
374 void request_diskstream_speed (Diskstream&, float speed);
375 void request_input_change_handling ();
377 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
378 bool transport_locked () const;
381 //int wipe_diskstream (AudioDiskstream *);
383 int remove_region_from_region_list (boost::shared_ptr<Region>);
385 nframes_t get_maximum_extent () const;
386 nframes_t current_end_frame() const { return end_location->start(); }
387 nframes_t current_start_frame() const { return start_location->start(); }
388 nframes_t frame_rate() const { return _current_frame_rate; }
389 nframes_t frames_per_hour() const { return _frames_per_hour; }
391 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
392 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
394 float smpte_frames_per_second() const;
395 bool smpte_drop_frames() const;
399 Locations *locations() { return &_locations; }
401 sigc::signal<void,Location*> auto_loop_location_changed;
402 sigc::signal<void,Location*> auto_punch_location_changed;
403 sigc::signal<void> locations_modified;
405 void set_auto_punch_location (Location *);
406 void set_auto_loop_location (Location *);
407 int location_name(string& result, string base = string(""));
409 void reset_input_monitor_state ();
411 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
412 void remove_event (nframes_t frame, Event::Type type);
413 void clear_events (Event::Type type);
415 nframes_t get_block_size() const { return current_block_size; }
416 nframes_t worst_output_latency () const { return _worst_output_latency; }
417 nframes_t worst_input_latency () const { return _worst_input_latency; }
418 nframes_t worst_track_latency () const { return _worst_track_latency; }
420 int save_state (string snapshot_name, bool pending = false);
421 int restore_state (string snapshot_name);
422 int save_template (string template_name);
423 int save_history (string snapshot_name = "");
424 int restore_history (string snapshot_name);
425 void remove_state (string snapshot_name);
426 void rename_state (string old_name, string new_name);
427 void remove_pending_capture_state ();
429 sigc::signal<void,string> StateSaved;
430 sigc::signal<void> StateReady;
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; }
493 AudioEngine const & engine () const { return _engine; }
500 nframes_t transport_frame () const {return _transport_frame; }
501 nframes_t audible_frame () const;
515 int set_smpte_format (SmpteFormat);
516 void sync_time_vars();
518 void bbt_time (nframes_t when, BBT_Time&);
519 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
520 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
521 void smpte_time (SMPTE::Time &);
522 void smpte_time (nframes_t when, SMPTE::Time&);
523 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
525 void smpte_duration (nframes_t, SMPTE::Time&) const;
526 void smpte_duration_string (char *, nframes_t) const;
528 void set_smpte_offset (nframes_t);
529 nframes_t smpte_offset () const { return _smpte_offset; }
530 void set_smpte_offset_negative (bool);
531 bool smpte_offset_negative () const { return _smpte_offset_negative; }
533 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
535 static sigc::signal<void> StartTimeChanged;
536 static sigc::signal<void> EndTimeChanged;
537 static sigc::signal<void> SMPTEOffsetChanged;
539 void request_slave_source (SlaveSource);
540 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
542 float transport_speed() const { return _transport_speed; }
543 bool transport_stopped() const { return _transport_speed == 0.0f; }
544 bool transport_rolling() const { return _transport_speed != 0.0f; }
546 int jack_slave_sync (nframes_t);
548 TempoMap& tempo_map() { return *_tempo_map; }
552 sigc::signal<void,boost::shared_ptr<Region> > RegionAdded;
553 sigc::signal<void,boost::shared_ptr<Region> > RegionRemoved;
555 int region_name (string& result, string base = string(""), bool newlevel = false) const;
556 string new_region_name (string);
557 string path_from_region_name (DataType type, string name, string identifier);
559 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>);
561 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
563 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
564 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
565 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
567 template<class T> void foreach_region (T *obj, void (T::*func)(boost::shared_ptr<Region>));
569 /* source management */
571 struct import_status : public InterThreadInfo {
577 volatile bool freeze;
578 std::vector<Glib::ustring> paths;
585 int import_audiofile (import_status&);
586 bool sample_rate_convert (import_status&, string infile, string& outfile);
587 string build_tmp_convert_name (string file);
589 SlaveSource post_export_slave;
590 nframes_t post_export_position;
592 int start_audio_export (ARDOUR::AudioExportSpecification&);
593 int stop_audio_export (ARDOUR::AudioExportSpecification&);
594 void finalize_audio_export ();
596 void add_source (boost::shared_ptr<Source>);
597 void remove_source (boost::weak_ptr<Source>);
599 struct cleanup_report {
600 vector<string> paths;
604 int cleanup_sources (cleanup_report&);
605 int cleanup_trash_sources (cleanup_report&);
607 int destroy_region (boost::shared_ptr<Region>);
608 int destroy_regions (std::list<boost::shared_ptr<Region> >);
610 int remove_last_capture ();
612 /* handlers should return -1 for "stop cleanup", 0 for
613 "yes, delete this playlist" and 1 for "no, don't delete
617 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
619 /* handlers should return !0 for use pending state, 0 for
623 static sigc::signal<int> AskAboutPendingState;
625 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
627 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
629 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
630 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
632 /* playlist management */
634 boost::shared_ptr<Playlist> playlist_by_name (string name);
635 void add_playlist (boost::shared_ptr<Playlist>);
636 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
637 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
639 uint32_t n_playlists() const;
641 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
642 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
644 /* named selections */
646 NamedSelection* named_selection_by_name (string name);
647 void add_named_selection (NamedSelection *);
648 void remove_named_selection (NamedSelection *);
650 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
651 sigc::signal<void> NamedSelectionAdded;
652 sigc::signal<void> NamedSelectionRemoved;
654 /* Curves and AutomationLists (TODO when they go away) */
655 void add_curve(Curve*);
656 void add_automation_list(AutomationList*);
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 void foreach_bundle (sigc::slot<void, boost::shared_ptr<Bundle> >);
717 void add_bundle (boost::shared_ptr<Bundle>);
718 void remove_bundle (boost::shared_ptr<Bundle>);
719 boost::shared_ptr<Bundle> bundle_by_name (string) const;
721 sigc::signal<void,boost::shared_ptr<Bundle> > BundleAdded;
722 sigc::signal<void,boost::shared_ptr<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_receive_device_id (uint32_t id);
748 void set_mmc_send_device_id (uint32_t id);
752 void start_scrub (nframes_t where);
754 void set_scrub_speed (float);
755 nframes_t scrub_buffer_size() const;
756 sigc::signal<void> ScrubReady;
758 /* History (for editors, mixers, UIs etc.) */
760 /** Undo some transactions.
761 * @param n Number of transactions to undo.
763 void undo (uint32_t n) {
767 void redo (uint32_t n) {
771 UndoHistory& history() { return _history; }
773 uint32_t undo_depth() const { return _history.undo_depth(); }
774 uint32_t redo_depth() const { return _history.redo_depth(); }
775 string next_undo() const { return _history.next_undo(); }
776 string next_redo() const { return _history.next_redo(); }
778 void begin_reversible_command (const string& cmd_name);
779 void commit_reversible_command (Command* cmd = 0);
781 void add_command (Command *const cmd) {
782 current_trans->add_command (cmd);
785 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
787 // these commands are implemented in libs/ardour/session_command.cc
788 Command* memento_command_factory(XMLNode* n);
789 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
791 Command* global_state_command_factory (const XMLNode& n);
793 class GlobalRouteStateCommand : public Command
796 GlobalRouteStateCommand (Session&, void*);
797 GlobalRouteStateCommand (Session&, const XMLNode& node);
798 int set_state (const XMLNode&);
799 XMLNode& get_state ();
802 GlobalRouteBooleanState before, after;
808 class GlobalSoloStateCommand : public GlobalRouteStateCommand
811 GlobalSoloStateCommand (Session &, void *src);
812 GlobalSoloStateCommand (Session&, const XMLNode&);
813 void operator()(); //redo
815 XMLNode &get_state();
819 class GlobalMuteStateCommand : public GlobalRouteStateCommand
822 GlobalMuteStateCommand(Session &, void *src);
823 GlobalMuteStateCommand (Session&, const XMLNode&);
824 void operator()(); // redo
826 XMLNode &get_state();
830 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
833 GlobalRecordEnableStateCommand(Session &, void *src);
834 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
835 void operator()(); // redo
837 XMLNode &get_state();
841 class GlobalMeteringStateCommand : public Command
844 GlobalMeteringStateCommand(Session &, void *src);
845 GlobalMeteringStateCommand (Session&, const XMLNode&);
848 XMLNode &get_state();
849 int set_state (const XMLNode&);
855 GlobalRouteMeterState before;
856 GlobalRouteMeterState after;
861 boost::shared_ptr<IO> click_io() { return _click_io; }
865 struct TimeStretchRequest {
866 boost::shared_ptr<ARDOUR::AudioRegion> region;
867 float fraction; /* session: read ; GUI: write */
868 float progress; /* session: write ; GUI: read */
869 bool running; /* read/write */
870 bool quick_seek; /* GUI: write */
871 bool antialias; /* GUI: write */
873 TimeStretchRequest () {}
876 boost::shared_ptr<AudioRegion> tempoize_region (TimeStretchRequest&);
878 /* disk, buffer loads */
880 uint32_t playback_load ();
881 uint32_t capture_load ();
882 uint32_t playback_load_min ();
883 uint32_t capture_load_min ();
885 void reset_playback_load_min ();
886 void reset_capture_load_min ();
888 float read_data_rate () const;
889 float write_data_rate () const;
893 void set_audio_range (list<AudioRange>&);
894 void set_music_range (list<MusicRange>&);
896 void request_play_range (bool yn);
897 bool get_play_range () const { return _play_range; }
899 /* buffers for gain and pan */
901 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
902 pan_t** pan_automation_buffer () const { return _pan_automation_buffer; }
904 /* buffers for conversion */
913 static long vst_callback (AEffect* effect,
920 static sigc::signal<void> SendFeedback;
924 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
926 void add_controllable (boost::shared_ptr<PBD::Controllable>);
927 void remove_controllable (PBD::Controllable*);
930 friend class AudioEngine;
931 void set_block_size (nframes_t nframes);
932 void set_frame_rate (nframes_t nframes);
935 friend class Diskstream;
937 void wait_till_butler_finished();
941 void schedule_curve_reallocation ();
942 void update_latency_compensation (bool, bool);
947 void initialize_start_and_end_locations(nframes_t start, nframes_t end);
948 bool create_session_file();
949 bool create_session_file_from_template (const string& template_path);
951 nframes_t compute_initial_length ();
954 PendingDeclickIn = 0x1,
955 PendingDeclickOut = 0x2,
956 StopPendingCapture = 0x4,
957 AutoReturning = 0x10,
958 PendingLocate = 0x20,
959 PendingSetLoop = 0x40
962 /* stuff used in process() should be close together to
966 typedef void (Session::*process_function_type)(nframes_t);
968 AudioEngine &_engine;
969 mutable gint processing_prohibited;
970 /// the function called when the main JACK process callback happens
971 process_function_type process_function;
972 process_function_type last_process_function;
973 bool waiting_for_sync_offset;
974 nframes_t _base_frame_rate;
975 nframes_t _current_frame_rate; //this includes video pullup offset
976 int transport_sub_state;
977 mutable gint _record_status;
978 nframes_t _transport_frame;
979 Location* end_location;
980 Location* start_location;
982 volatile float _transport_speed;
983 volatile float _desired_transport_speed;
984 float _last_transport_speed;
985 bool auto_play_legal;
986 nframes_t _last_slave_transport_frame;
987 nframes_t maximum_output_latency;
988 nframes_t last_stop_frame;
989 BufferSet* _scratch_buffers;
990 BufferSet* _silent_buffers;
991 BufferSet* _mix_buffers;
992 nframes_t current_block_size;
993 nframes_t _worst_output_latency;
994 nframes_t _worst_input_latency;
995 nframes_t _worst_track_latency;
998 float _meter_falloff;
999 bool _end_location_is_free;
1001 void set_worst_io_latencies ();
1002 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1003 set_worst_io_latencies ();
1006 void update_latency_compensation_proxy (void* ignored);
1008 void ensure_buffers (ChanCount howmany);
1010 void process_scrub (nframes_t);
1011 void process_without_events (nframes_t);
1012 void process_with_events (nframes_t);
1013 void process_audition (nframes_t);
1014 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1016 /* slave tracking */
1018 static const int delta_accumulator_size = 25;
1019 int delta_accumulator_cnt;
1020 long delta_accumulator[delta_accumulator_size];
1021 long average_slave_delta;
1023 bool have_first_delta_accumulator;
1031 SlaveState slave_state;
1032 nframes_t slave_wait_end;
1034 void reset_slave_state ();
1035 bool follow_slave (nframes_t, nframes_t);
1036 void set_slave_source (SlaveSource);
1039 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1041 void prepare_diskstreams ();
1042 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1043 int process_routes (nframes_t, nframes_t);
1044 int silent_process_routes (nframes_t, nframes_t);
1046 bool get_rec_monitors_input () {
1047 if (actively_recording()) {
1050 if (Config->get_auto_input()) {
1058 int get_transport_declick_required () {
1060 if (transport_sub_state & PendingDeclickIn) {
1061 transport_sub_state &= ~PendingDeclickIn;
1063 } else if (transport_sub_state & PendingDeclickOut) {
1070 bool maybe_stop (nframes_t limit) {
1071 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1078 bool maybe_sync_start (nframes_t&, nframes_t&);
1080 void check_declick_out ();
1082 MIDI::MachineControl* mmc;
1083 MIDI::Port* _mmc_port;
1084 MIDI::Port* _mtc_port;
1085 MIDI::Port* _midi_port;
1088 bool session_send_mmc;
1089 bool session_send_mtc;
1090 bool session_midi_feedback;
1093 nframes_t last_loopend;
1095 boost::scoped_ptr<SessionDirectory> _session_dir;
1097 RingBuffer<Event*> pending_events;
1100 void when_engine_running ();
1101 void graph_reordered ();
1103 string _current_snapshot_name;
1105 XMLTree* state_tree;
1106 bool state_was_pending;
1107 StateOfTheState _state_of_the_state;
1110 int load_options (const XMLNode&);
1111 XMLNode& get_options () const;
1112 int load_state (string snapshot_name);
1113 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1115 nframes_t _last_roll_location;
1116 nframes_t _last_record_location;
1118 bool pending_locate_roll;
1119 nframes_t pending_locate_frame;
1120 bool pending_locate_flush;
1122 bool pending_auto_loop;
1124 Sample* butler_mixdown_buffer;
1125 float* butler_gain_buffer;
1126 pthread_t butler_thread;
1127 Glib::Mutex butler_request_lock;
1128 Glib::Cond butler_paused;
1129 bool butler_should_run;
1130 mutable gint butler_should_do_transport_work;
1131 int butler_request_pipe[2];
1133 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1135 struct ButlerRequest {
1144 enum PostTransportWork {
1145 PostTransportStop = 0x1,
1146 PostTransportDisableRecord = 0x2,
1147 PostTransportPosition = 0x8,
1148 PostTransportDidRecord = 0x20,
1149 PostTransportDuration = 0x40,
1150 PostTransportLocate = 0x80,
1151 PostTransportRoll = 0x200,
1152 PostTransportAbort = 0x800,
1153 PostTransportOverWrite = 0x1000,
1154 PostTransportSpeed = 0x2000,
1155 PostTransportAudition = 0x4000,
1156 PostTransportScrub = 0x8000,
1157 PostTransportReverse = 0x10000,
1158 PostTransportInputChange = 0x20000,
1159 PostTransportCurveRealloc = 0x40000
1162 static const PostTransportWork ProcessCannotProceedMask =
1163 PostTransportWork (PostTransportInputChange|
1165 PostTransportReverse|
1166 PostTransportCurveRealloc|
1168 PostTransportAudition|
1169 PostTransportLocate|
1172 PostTransportWork post_transport_work;
1174 void summon_butler ();
1175 void schedule_butler_transport_work ();
1176 int start_butler_thread ();
1177 void terminate_butler_thread ();
1178 static void *_butler_thread_work (void *arg);
1179 void* butler_thread_work ();
1181 uint32_t cumulative_rf_motion;
1184 void set_rf_speed (float speed);
1185 void reset_rf_scale (nframes_t frames_moved);
1187 Locations _locations;
1188 void locations_changed ();
1189 void locations_added (Location*);
1190 void handle_locations_changed (Locations::LocationList&);
1192 sigc::connection auto_punch_start_changed_connection;
1193 sigc::connection auto_punch_end_changed_connection;
1194 sigc::connection auto_punch_changed_connection;
1195 void auto_punch_start_changed (Location *);
1196 void auto_punch_end_changed (Location *);
1197 void auto_punch_changed (Location *);
1199 sigc::connection auto_loop_start_changed_connection;
1200 sigc::connection auto_loop_end_changed_connection;
1201 sigc::connection auto_loop_changed_connection;
1202 void auto_loop_changed (Location *);
1204 typedef list<Event *> Events;
1206 Events immediate_events;
1207 Events::iterator next_event;
1209 /* there can only ever be one of each of these */
1211 Event *auto_loop_event;
1212 Event *punch_out_event;
1213 Event *punch_in_event;
1217 void dump_events () const;
1218 void queue_event (Event *ev);
1219 void merge_event (Event*);
1220 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1221 bool _replace_event (Event*);
1222 bool _remove_event (Event *);
1223 void _clear_event_type (Event::Type);
1225 void first_stage_init (string path, string snapshot_name);
1226 int second_stage_init (bool new_tracks);
1227 void find_current_end ();
1228 void remove_empty_sounds ();
1230 void setup_midi_control ();
1231 //int midi_read (MIDI::Port *);
1233 void enable_record ();
1235 void increment_transport_position (uint32_t val) {
1236 if (max_frames - val < _transport_frame) {
1237 _transport_frame = max_frames;
1239 _transport_frame += val;
1243 void decrement_transport_position (uint32_t val) {
1244 if (val < _transport_frame) {
1245 _transport_frame -= val;
1247 _transport_frame = 0;
1251 void post_transport_motion ();
1252 static void *session_loader_thread (void *arg);
1256 void set_next_event ();
1257 void process_event (Event *ev);
1259 /* MIDI Machine Control */
1261 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1262 //void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1263 //void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1265 void spp_start (MIDI::Parser&);
1266 void spp_continue (MIDI::Parser&);
1267 void spp_stop (MIDI::Parser&);
1269 void mmc_deferred_play (MIDI::MachineControl &);
1270 void mmc_stop (MIDI::MachineControl &);
1271 void mmc_step (MIDI::MachineControl &, int);
1272 void mmc_pause (MIDI::MachineControl &);
1273 void mmc_record_pause (MIDI::MachineControl &);
1274 void mmc_record_strobe (MIDI::MachineControl &);
1275 void mmc_record_exit (MIDI::MachineControl &);
1276 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1277 void mmc_fast_forward (MIDI::MachineControl &);
1278 void mmc_rewind (MIDI::MachineControl &);
1279 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1280 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1281 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1283 struct timeval last_mmc_step;
1286 typedef sigc::slot<bool> MidiTimeoutCallback;
1287 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1289 MidiTimeoutList midi_timeouts;
1290 bool mmc_step_timeout ();
1292 MIDI::byte mmc_buffer[32];
1293 MIDI::byte mtc_msg[16];
1294 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1295 MIDI::byte midi_msg[16];
1296 nframes_t outbound_mtc_smpte_frame;
1297 SMPTE::Time transmitting_smpte_time;
1298 int next_quarter_frame_to_send;
1300 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1301 nframes_t _frames_per_hour;
1302 nframes_t _smpte_frames_per_hour;
1303 nframes_t _smpte_offset;
1304 bool _smpte_offset_negative;
1306 /* cache the most-recently requested time conversions. This helps when we
1307 * have multiple clocks showing the same time (e.g. the transport frame) */
1308 bool last_smpte_valid;
1309 nframes_t last_smpte_when;
1310 SMPTE::Time last_smpte;
1312 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1314 int send_full_time_code(nframes_t nframes);
1315 int send_midi_time_code_for_cycle(nframes_t nframes);
1317 nframes_t adjust_apparent_position (nframes_t frames);
1319 void reset_record_status ();
1321 int no_roll (nframes_t nframes, nframes_t offset);
1323 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1324 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1326 struct MIDIRequest {
1339 MIDI::MachineControl::Command mmc_cmd;
1340 nframes_t locate_frame;
1342 // for SendMessage type
1345 MIDI::channel_t chan;
1347 MIDI::EventTwoBytes data;
1358 void *operator new(size_t ignored) {
1359 return pool.alloc ();
1362 void operator delete(void *ptr, size_t size) {
1367 static MultiAllocSingleReleasePool pool;
1370 mutable gint butler_active;
1372 void change_midi_ports ();
1373 int use_config_midi_ports ();
1375 bool waiting_to_start;
1377 void set_play_loop (bool yn);
1378 void overwrite_some_buffers (Diskstream*);
1379 void flush_all_inserts ();
1380 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1381 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1382 void force_locate (nframes_t frame, bool with_roll = false);
1383 void set_diskstream_speed (Diskstream*, float speed);
1384 void set_transport_speed (float speed, bool abort = false);
1385 void stop_transport (bool abort = false);
1386 void start_transport ();
1387 void actually_start_transport ();
1388 void realtime_stop (bool abort);
1389 void non_realtime_start_scrub ();
1390 void non_realtime_set_speed ();
1391 void non_realtime_locate ();
1392 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1393 void non_realtime_overwrite (int entry_request_count, bool& finished);
1394 void butler_transport_work ();
1395 void post_transport ();
1396 void engine_halted ();
1397 void xrun_recovery ();
1399 TempoMap *_tempo_map;
1400 void tempo_map_changed (Change);
1402 /* edit/mix groups */
1404 int load_route_groups (const XMLNode&, bool is_edit);
1405 int load_edit_groups (const XMLNode&);
1406 int load_mix_groups (const XMLNode&);
1409 list<RouteGroup *> edit_groups;
1410 list<RouteGroup *> mix_groups;
1414 SerializedRCUManager<DiskstreamList> diskstreams;
1416 uint32_t dstream_buffer_size;
1417 int load_diskstreams (const XMLNode&);
1421 SerializedRCUManager<RouteList> routes;
1423 void add_routes (RouteList&, bool save = true);
1424 uint32_t destructive_index;
1426 int load_routes (const XMLNode&);
1427 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1431 bool solo_update_disabled;
1432 bool currently_soloing;
1434 void route_mute_changed (void *src);
1435 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1436 void catch_up_on_solo ();
1437 void update_route_solo_state ();
1438 void modify_solo_mute (bool, bool);
1439 void strip_portname_for_solo (string& portname);
1441 /* REGION MANAGEMENT */
1443 mutable Glib::Mutex region_lock;
1444 typedef map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1447 void add_region (boost::shared_ptr<Region>);
1448 void region_changed (Change, boost::weak_ptr<Region>);
1449 void remove_region (boost::weak_ptr<Region>);
1451 int load_regions (const XMLNode& node);
1455 mutable Glib::Mutex source_lock;
1456 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1460 int load_sources (const XMLNode& node);
1461 XMLNode& get_sources_as_xml ();
1463 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1467 mutable Glib::Mutex playlist_lock;
1468 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1469 PlaylistList playlists;
1470 PlaylistList unused_playlists;
1472 int load_playlists (const XMLNode&);
1473 int load_unused_playlists (const XMLNode&);
1474 void remove_playlist (boost::weak_ptr<Playlist>);
1475 void track_playlist (bool, boost::weak_ptr<Playlist>);
1477 boost::shared_ptr<Playlist> playlist_factory (string name);
1478 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1480 void playlist_length_changed ();
1481 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1483 /* NAMED SELECTIONS */
1485 mutable Glib::Mutex named_selection_lock;
1486 typedef set<NamedSelection *> NamedSelectionList;
1487 NamedSelectionList named_selections;
1489 int load_named_selections (const XMLNode&);
1491 NamedSelection *named_selection_factory (string name);
1492 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1494 /* CURVES and AUTOMATION LISTS */
1495 std::map<PBD::ID, Curve*> curves;
1496 std::map<PBD::ID, AutomationList*> automation_lists;
1498 /* DEFAULT FADE CURVES */
1500 float default_fade_steepness;
1501 float default_fade_msecs;
1505 boost::shared_ptr<Auditioner> auditioner;
1506 void set_audition (boost::shared_ptr<Region>);
1507 void non_realtime_set_audition ();
1508 boost::shared_ptr<Region> pending_audition_region;
1514 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1516 /* INSERT AND SEND MANAGEMENT */
1518 list<PortInsert *> _port_inserts;
1519 list<PluginInsert *> _plugin_inserts;
1520 list<Send *> _sends;
1521 boost::dynamic_bitset<uint32_t> send_bitset;
1522 boost::dynamic_bitset<uint32_t> insert_bitset;
1524 uint32_t insert_cnt;
1527 void add_processor (Processor *);
1528 void remove_processor (Processor *);
1532 struct space_and_path {
1533 uint32_t blocks; /* 4kB blocks */
1541 struct space_and_path_ascending_cmp {
1542 bool operator() (space_and_path a, space_and_path b) {
1543 return a.blocks > b.blocks;
1547 void setup_raid_path (string path);
1549 vector<space_and_path> session_dirs;
1550 vector<space_and_path>::iterator last_rr_session_dir;
1551 uint32_t _total_free_4k_blocks;
1552 Glib::Mutex space_lock;
1554 string get_best_session_directory_for_new_source ();
1555 void refresh_disk_space ();
1557 mutable gint _playback_load;
1558 mutable gint _capture_load;
1559 mutable gint _playback_load_min;
1560 mutable gint _capture_load_min;
1564 typedef list<boost::shared_ptr<Bundle> > BundleList;
1565 mutable Glib::Mutex bundle_lock;
1566 BundleList _bundles;
1567 XMLNode* _bundle_xml_node;
1568 int load_bundles (XMLNode const &);
1570 void reverse_diskstream_buffers ();
1572 UndoHistory _history;
1573 UndoTransaction* current_trans;
1575 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1576 GlobalRouteMeterState get_global_route_metering ();
1578 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1579 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1581 void set_global_mute (GlobalRouteBooleanState s, void *src);
1582 void set_global_solo (GlobalRouteBooleanState s, void *src);
1583 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1585 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1586 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1587 void reset_jack_connection (jack_client_t* jack);
1588 void record_enable_change_all (bool yn);
1590 XMLNode& state(bool);
1600 Click (nframes_t s, nframes_t d, const Sample *b)
1601 : start (s), duration (d), data (b) { offset = 0; }
1603 void *operator new(size_t ignored) {
1604 return pool.alloc ();
1607 void operator delete(void *ptr, size_t size) {
1615 typedef list<Click*> Clicks;
1619 boost::shared_ptr<IO> _click_io;
1621 Sample* click_emphasis_data;
1622 nframes_t click_length;
1623 nframes_t click_emphasis_length;
1624 mutable Glib::RWLock click_lock;
1626 static const Sample default_click[];
1627 static const nframes_t default_click_length;
1628 static const Sample default_click_emphasis[];
1629 static const nframes_t default_click_emphasis_length;
1632 void setup_click_sounds (int which);
1633 void clear_clicks ();
1634 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1636 vector<Route*> master_outs;
1638 /* range playback */
1640 list<AudioRange> current_audio_range;
1642 void set_play_range (bool yn);
1643 void setup_auto_play ();
1648 boost::shared_ptr<IO> _master_out;
1649 boost::shared_ptr<IO> _control_out;
1651 gain_t* _gain_automation_buffer;
1652 pan_t** _pan_automation_buffer;
1653 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1654 uint32_t _npan_buffers;
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;
1673 int find_all_sources (std::string path, std::set<std::string>& result);
1674 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1676 LayerModel layer_model;
1677 CrossfadeModel xfade_model;
1679 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1680 Glib::Mutex controllables_lock;
1681 Controllables controllables;
1683 void reset_native_file_format();
1684 bool first_file_data_format_reset;
1685 bool first_file_header_format_reset;
1687 void config_changed (const char*);
1689 XMLNode& get_control_protocol_state ();
1691 void set_history_depth (uint32_t depth);
1692 void sync_order_keys ();
1695 } // namespace ARDOUR
1697 #endif /* __ardour_session_h__ */