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 ExportSpecification;
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;
150 InputConfigurationChange,
154 /* only one of each of these events
155 can be queued at any one time
171 nframes_t action_frame;
172 nframes_t target_frame;
182 boost::shared_ptr<Region> region;
184 list<AudioRange> audio_range;
185 list<MusicRange> music_range;
187 Event(Type t, Action a, nframes_t when, nframes_t where, float spd, bool yn = false)
191 target_frame (where),
195 void set_ptr (void* p) {
199 bool before (const Event& other) const {
200 return action_frame < other.action_frame;
203 bool after (const Event& other) const {
204 return action_frame > other.action_frame;
207 static bool compare (const Event *e1, const Event *e2) {
208 return e1->before (*e2);
211 void *operator new (size_t ignored) {
212 return pool.alloc ();
215 void operator delete(void *ptr, size_t size) {
219 static const nframes_t Immediate = 0;
222 static MultiAllocSingleReleasePool pool;
225 /* creating from an XML file */
227 Session (AudioEngine&,
228 const string& fullpath,
229 const string& snapshot_name,
230 string mix_template = "");
232 /* creating a new Session */
234 Session (AudioEngine&,
236 string snapshot_name,
237 AutoConnectOption input_auto_connect,
238 AutoConnectOption output_auto_connect,
239 uint32_t control_out_channels,
240 uint32_t master_out_channels,
241 uint32_t n_physical_in,
242 uint32_t n_physical_out,
243 nframes_t initial_length);
247 string path() const { return _path; }
248 string name() const { return _name; }
249 string snap_name() const { return _current_snapshot_name; }
250 string raid_path () const;
252 void set_snap_name ();
256 bool dirty() const { return _state_of_the_state & Dirty; }
257 void set_deletion_in_progress ();
258 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
259 sigc::signal<void> DirtyChanged;
261 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
263 std::string automation_dir () const;
264 std::string analysis_dir() const;
266 int ensure_subdirs ();
268 Glib::ustring peak_path (Glib::ustring) const;
270 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
271 static string change_midi_path_by_name (string oldpath, string oldname, string newname, bool destructive);
273 string peak_path_from_audio_path (string) const;
274 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
275 string midi_path_from_name (string);
277 void process (nframes_t nframes);
279 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
280 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
281 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
283 void add_diskstream (boost::shared_ptr<Diskstream>);
284 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
285 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
287 bool have_captured() const { return _have_captured; }
289 void refill_all_diskstream_buffers ();
290 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
292 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
293 uint32_t n_diskstreams() const;
295 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
296 typedef std::list<boost::shared_ptr<Route> > RouteList;
298 boost::shared_ptr<RouteList> get_routes() const {
299 return routes.reader ();
302 uint32_t nroutes() const { return routes.reader()->size(); }
303 uint32_t ntracks () const;
304 uint32_t nbusses () const;
306 struct RoutePublicOrderSorter {
307 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
310 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
311 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
312 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
314 boost::shared_ptr<Route> route_by_name (string);
315 boost::shared_ptr<Route> route_by_id (PBD::ID);
316 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
318 bool route_name_unique (string) const;
320 bool get_record_enabled() const {
321 return (record_status () >= Enabled);
324 RecordState record_status() const {
325 return (RecordState) g_atomic_int_get (&_record_status);
328 bool actively_recording () {
329 return record_status() == Recording;
332 bool record_enabling_legal () const;
333 void maybe_enable_record ();
334 void disable_record (bool rt_context, bool force = false);
335 void step_back_from_record ();
337 void maybe_write_autosave ();
339 /* Proxy signal for region hidden changes */
341 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
343 /* Emitted when all i/o connections are complete */
345 sigc::signal<void> IOConnectionsComplete;
347 /* Record status signals */
349 sigc::signal<void> RecordStateChanged;
351 /* Transport mechanism signals */
353 sigc::signal<void> TransportStateChange; /* generic */
354 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
355 sigc::signal<void> DurationChanged;
356 sigc::signal<void,nframes_t> Xrun;
357 sigc::signal<void> TransportLooped;
359 sigc::signal<void,RouteList&> RouteAdded;
361 void request_roll_at_and_return (nframes_t start, nframes_t return_to);
362 void request_bounded_roll (nframes_t start, nframes_t end);
363 void request_stop (bool abort = false);
364 void request_locate (nframes_t frame, bool with_roll = false);
366 void request_play_loop (bool yn);
367 bool get_play_loop () const { return play_loop; }
369 nframes_t last_transport_start() const { return _last_roll_location; }
370 void goto_end () { request_locate (end_location->start(), false);}
371 void goto_start () { request_locate (start_location->start(), false); }
372 void set_session_start (nframes_t start) { start_location->set_start(start); }
373 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
374 void use_rf_shuttle_speed ();
375 void allow_auto_play (bool yn);
376 void request_transport_speed (float speed);
377 void request_overwrite_buffer (Diskstream*);
378 void request_diskstream_speed (Diskstream&, float speed);
379 void request_input_change_handling ();
381 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
382 bool transport_locked () const;
385 //int wipe_diskstream (AudioDiskstream *);
387 int remove_region_from_region_list (boost::shared_ptr<Region>);
389 nframes_t get_maximum_extent () const;
390 nframes_t current_end_frame() const { return end_location->start(); }
391 nframes_t current_start_frame() const { return start_location->start(); }
392 // "actual" sample rate of session, set by current audioengine rate, pullup/down etc.
393 nframes_t frame_rate() const { return _current_frame_rate; }
394 // "native" sample rate of session, regardless of current audioengine rate, pullup/down etc
395 nframes_t nominal_frame_rate() const { return _nominal_frame_rate; }
396 nframes_t frames_per_hour() const { return _frames_per_hour; }
398 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
399 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
401 float smpte_frames_per_second() const;
402 bool smpte_drop_frames() const;
406 Locations *locations() { return &_locations; }
408 sigc::signal<void,Location*> auto_loop_location_changed;
409 sigc::signal<void,Location*> auto_punch_location_changed;
410 sigc::signal<void> locations_modified;
412 void set_auto_punch_location (Location *);
413 void set_auto_loop_location (Location *);
414 int location_name(string& result, string base = string(""));
416 void reset_input_monitor_state ();
418 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
419 void remove_event (nframes_t frame, Event::Type type);
420 void clear_events (Event::Type type);
422 nframes_t get_block_size() const { return current_block_size; }
423 nframes_t worst_output_latency () const { return _worst_output_latency; }
424 nframes_t worst_input_latency () const { return _worst_input_latency; }
425 nframes_t worst_track_latency () const { return _worst_track_latency; }
427 int save_state (string snapshot_name, bool pending = false);
428 int restore_state (string snapshot_name);
429 int save_template (string template_name);
430 int save_history (string snapshot_name = "");
431 int restore_history (string snapshot_name);
432 void remove_state (string snapshot_name);
433 void rename_state (string old_name, string new_name);
434 void remove_pending_capture_state ();
436 sigc::signal<void,string> StateSaved;
437 sigc::signal<void> StateReady;
439 vector<string*>* possible_states() const;
440 static vector<string*>* possible_states(string path);
442 XMLNode& get_state();
443 int set_state(const XMLNode& node); // not idempotent
444 XMLNode& get_template();
446 /// The instant xml file is written to the session directory
447 void add_instant_xml (XMLNode&);
448 XMLNode * instant_xml (const std::string& str);
450 enum StateOfTheState {
455 InitialConnecting = 0x8,
460 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
462 RouteGroup* add_edit_group (string);
463 RouteGroup* add_mix_group (string);
465 void remove_edit_group (RouteGroup&);
466 void remove_mix_group (RouteGroup&);
468 RouteGroup *mix_group_by_name (string);
469 RouteGroup *edit_group_by_name (string);
471 sigc::signal<void,RouteGroup*> edit_group_added;
472 sigc::signal<void,RouteGroup*> mix_group_added;
473 sigc::signal<void> edit_group_removed;
474 sigc::signal<void> mix_group_removed;
476 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
477 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
482 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
483 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
488 /* fundamental operations. duh. */
490 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
491 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
493 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (TrackMode mode = Normal, uint32_t how_many = 1);
494 //boost::shared_ptr<Route> new_midi_route (uint32_t how_many = 1);
496 void remove_route (boost::shared_ptr<Route>);
497 void resort_routes ();
498 void resort_routes_using (boost::shared_ptr<RouteList>);
500 void set_remote_control_ids();
502 AudioEngine & engine() { return _engine; }
503 AudioEngine const & engine () const { return _engine; }
510 nframes_t transport_frame () const {return _transport_frame; }
511 nframes_t audible_frame () const;
512 nframes64_t requested_return_frame() const { return _requested_return_frame; }
526 int set_smpte_format (SmpteFormat);
527 void sync_time_vars();
529 void bbt_time (nframes_t when, BBT_Time&);
530 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
531 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
532 void smpte_time (SMPTE::Time &);
533 void smpte_time (nframes_t when, SMPTE::Time&);
534 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
536 void smpte_duration (nframes_t, SMPTE::Time&) const;
537 void smpte_duration_string (char *, nframes_t) const;
539 void set_smpte_offset (nframes_t);
540 nframes_t smpte_offset () const { return _smpte_offset; }
541 void set_smpte_offset_negative (bool);
542 bool smpte_offset_negative () const { return _smpte_offset_negative; }
544 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
546 static sigc::signal<void> StartTimeChanged;
547 static sigc::signal<void> EndTimeChanged;
548 static sigc::signal<void> SMPTEOffsetChanged;
550 void request_slave_source (SlaveSource);
551 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
553 float transport_speed() const { return _transport_speed; }
554 bool transport_stopped() const { return _transport_speed == 0.0f; }
555 bool transport_rolling() const { return _transport_speed != 0.0f; }
557 void set_silent (bool yn);
558 bool silent () { return _silent; }
560 int jack_slave_sync (nframes_t);
562 TempoMap& tempo_map() { return *_tempo_map; }
566 void add_regions (std::vector<boost::shared_ptr<Region> >&);
568 sigc::signal<void,boost::weak_ptr<Region> > RegionAdded;
569 sigc::signal<void,std::vector<boost::weak_ptr<Region> >& > RegionsAdded;
570 sigc::signal<void,boost::weak_ptr<Region> > RegionRemoved;
572 int region_name (string& result, string base = string(""), bool newlevel = false) const;
573 string new_region_name (string);
574 string path_from_region_name (DataType type, string name, string identifier);
576 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>);
578 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
580 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
581 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
582 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
584 template<class T> void foreach_region (T *obj, void (T::*func)(boost::shared_ptr<Region>));
586 /* source management */
588 struct import_status : public InterThreadInfo {
593 volatile bool freeze;
594 std::vector<Glib::ustring> paths;
595 bool replace_existing_source;
602 void import_audiofiles (import_status&);
603 bool sample_rate_convert (import_status&, string infile, string& outfile);
604 string build_tmp_convert_name (string file);
606 SlaveSource post_export_slave;
607 nframes_t post_export_position;
609 int start_export (ARDOUR::ExportSpecification&);
610 int stop_export (ARDOUR::ExportSpecification&);
611 void finalize_audio_export ();
613 void add_source (boost::shared_ptr<Source>);
614 void remove_source (boost::weak_ptr<Source>);
616 struct cleanup_report {
617 vector<string> paths;
621 int cleanup_sources (cleanup_report&);
622 int cleanup_trash_sources (cleanup_report&);
624 int destroy_region (boost::shared_ptr<Region>);
625 int destroy_regions (std::list<boost::shared_ptr<Region> >);
627 int remove_last_capture ();
629 /* handlers should return -1 for "stop cleanup", 0 for
630 "yes, delete this playlist" and 1 for "no, don't delete
634 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
636 /* handlers should return 0 for "ignore the rate mismatch"
637 and !0 for "do not use this session"
640 static sigc::signal<int,nframes_t, nframes_t> AskAboutSampleRateMismatch;
642 /* handlers should return !0 for use pending state, 0 for
646 static sigc::signal<int> AskAboutPendingState;
648 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
650 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
652 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
653 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
655 /* playlist management */
657 boost::shared_ptr<Playlist> playlist_by_name (string name);
658 void add_playlist (boost::shared_ptr<Playlist>);
659 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
660 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
662 uint32_t n_playlists() const;
664 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
665 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
667 /* named selections */
669 NamedSelection* named_selection_by_name (string name);
670 void add_named_selection (NamedSelection *);
671 void remove_named_selection (NamedSelection *);
673 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
674 sigc::signal<void> NamedSelectionAdded;
675 sigc::signal<void> NamedSelectionRemoved;
677 /* Curves and AutomationLists (TODO when they go away) */
678 void add_curve(Curve*);
679 void add_automation_list(AutomationList*);
683 float get_default_fade_length () const { return default_fade_msecs; }
684 float get_default_fade_steepness () const { return default_fade_steepness; }
685 void set_default_fade (float steepness, float msecs);
689 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
690 void audition_playlist ();
691 void audition_region (boost::shared_ptr<Region>);
692 void cancel_audition ();
693 bool is_auditioning () const;
695 sigc::signal<void,bool> AuditionActive;
697 /* flattening stuff */
699 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite,
700 vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot);
702 int freeze (InterThreadInfo&);
704 /* session-wide solo/mute/rec-enable */
706 bool soloing() const { return currently_soloing; }
708 void set_all_solo (bool);
709 void set_all_mute (bool);
711 sigc::signal<void,bool> SoloActive;
712 sigc::signal<void> SoloChanged;
714 void record_disenable_all ();
715 void record_enable_all ();
717 /* control/master out */
719 boost::shared_ptr<IO> control_out() const { return _control_out; }
720 boost::shared_ptr<IO> master_out() const { return _master_out; }
722 /* insert/send management */
724 uint32_t n_port_inserts() const { return _port_inserts.size(); }
725 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
726 uint32_t n_sends() const { return _sends.size(); }
728 static void set_disable_all_loaded_plugins (bool yn) {
729 _disable_all_loaded_plugins = yn;
731 static bool get_disable_all_loaded_plugins() {
732 return _disable_all_loaded_plugins;
735 uint32_t next_send_id();
736 uint32_t next_insert_id();
737 void mark_send_id (uint32_t);
738 void mark_insert_id (uint32_t);
740 /* s/w "RAID" management */
742 nframes_t available_capture_duration();
746 void foreach_bundle (sigc::slot<void, boost::shared_ptr<Bundle> >);
747 void add_bundle (boost::shared_ptr<Bundle>);
748 void remove_bundle (boost::shared_ptr<Bundle>);
749 boost::shared_ptr<Bundle> bundle_by_name (string) const;
751 sigc::signal<void,boost::shared_ptr<Bundle> > BundleAdded;
752 sigc::signal<void,boost::shared_ptr<Bundle> > BundleRemoved;
756 int set_mtc_port (string port_tag);
757 int set_mmc_port (string port_tag);
758 int set_midi_port (string port_tag);
759 MIDI::Port *mtc_port() const { return _mtc_port; }
760 MIDI::Port *mmc_port() const { return _mmc_port; }
761 MIDI::Port *midi_port() const { return _midi_port; }
763 sigc::signal<void> MTC_PortChanged;
764 sigc::signal<void> MMC_PortChanged;
765 sigc::signal<void> MIDI_PortChanged;
767 void set_trace_midi_input (bool, MIDI::Port* port = 0);
768 void set_trace_midi_output (bool, MIDI::Port* port = 0);
770 bool get_trace_midi_input(MIDI::Port *port = 0);
771 bool get_trace_midi_output(MIDI::Port *port = 0);
773 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
775 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
777 void set_mmc_receive_device_id (uint32_t id);
778 void set_mmc_send_device_id (uint32_t id);
782 void start_scrub (nframes_t where);
784 void set_scrub_speed (float);
785 nframes_t scrub_buffer_size() const;
786 sigc::signal<void> ScrubReady;
788 /* History (for editors, mixers, UIs etc.) */
790 /** Undo some transactions.
791 * @param n Number of transactions to undo.
793 void undo (uint32_t n) {
797 void redo (uint32_t n) {
801 UndoHistory& history() { return _history; }
803 uint32_t undo_depth() const { return _history.undo_depth(); }
804 uint32_t redo_depth() const { return _history.redo_depth(); }
805 string next_undo() const { return _history.next_undo(); }
806 string next_redo() const { return _history.next_redo(); }
808 void begin_reversible_command (const string& cmd_name);
809 void commit_reversible_command (Command* cmd = 0);
811 void add_command (Command *const cmd) {
812 current_trans->add_command (cmd);
815 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
817 // these commands are implemented in libs/ardour/session_command.cc
818 Command* memento_command_factory(XMLNode* n);
819 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
821 Command* global_state_command_factory (const XMLNode& n);
823 class GlobalRouteStateCommand : public Command
826 GlobalRouteStateCommand (Session&, void*);
827 GlobalRouteStateCommand (Session&, const XMLNode& node);
828 int set_state (const XMLNode&);
829 XMLNode& get_state ();
832 GlobalRouteBooleanState before, after;
838 class GlobalSoloStateCommand : public GlobalRouteStateCommand
841 GlobalSoloStateCommand (Session &, void *src);
842 GlobalSoloStateCommand (Session&, const XMLNode&);
843 void operator()(); //redo
845 XMLNode &get_state();
849 class GlobalMuteStateCommand : public GlobalRouteStateCommand
852 GlobalMuteStateCommand(Session &, void *src);
853 GlobalMuteStateCommand (Session&, const XMLNode&);
854 void operator()(); // redo
856 XMLNode &get_state();
860 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
863 GlobalRecordEnableStateCommand(Session &, void *src);
864 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
865 void operator()(); // redo
867 XMLNode &get_state();
871 class GlobalMeteringStateCommand : public Command
874 GlobalMeteringStateCommand(Session &, void *src);
875 GlobalMeteringStateCommand (Session&, const XMLNode&);
878 XMLNode &get_state();
879 int set_state (const XMLNode&);
885 GlobalRouteMeterState before;
886 GlobalRouteMeterState after;
891 boost::shared_ptr<IO> click_io() { return _click_io; }
893 /* disk, buffer loads */
895 uint32_t playback_load ();
896 uint32_t capture_load ();
897 uint32_t playback_load_min ();
898 uint32_t capture_load_min ();
900 void reset_playback_load_min ();
901 void reset_capture_load_min ();
903 float read_data_rate () const;
904 float write_data_rate () const;
908 void set_audio_range (list<AudioRange>&);
909 void set_music_range (list<MusicRange>&);
911 void request_play_range (bool yn);
912 bool get_play_range () const { return _play_range; }
914 /* buffers for gain and pan */
916 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
917 pan_t** pan_automation_buffer () const { return _pan_automation_buffer; }
919 /* buffers for conversion */
928 static long vst_callback (AEffect* effect,
935 typedef float (*compute_peak_t) (Sample *, nframes_t, float);
936 typedef void (*find_peaks_t) (Sample *, nframes_t, float *, float*);
937 typedef void (*apply_gain_to_buffer_t) (Sample *, nframes_t, float);
938 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, nframes_t, float);
939 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, nframes_t);
941 static compute_peak_t compute_peak;
942 static find_peaks_t find_peaks;
943 static apply_gain_to_buffer_t apply_gain_to_buffer;
944 static mix_buffers_with_gain_t mix_buffers_with_gain;
945 static mix_buffers_no_gain_t mix_buffers_no_gain;
947 static sigc::signal<void> SendFeedback;
951 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
953 void add_controllable (boost::shared_ptr<PBD::Controllable>);
954 void remove_controllable (PBD::Controllable*);
957 friend class AudioEngine;
958 void set_block_size (nframes_t nframes);
959 void set_frame_rate (nframes_t nframes);
962 friend class Diskstream;
964 void wait_till_butler_finished();
968 void schedule_curve_reallocation ();
969 void update_latency_compensation (bool, bool);
972 int create (bool& new_session, const string& mix_template, nframes_t initial_length);
975 nframes_t compute_initial_length ();
978 PendingDeclickIn = 0x1,
979 PendingDeclickOut = 0x2,
980 StopPendingCapture = 0x4,
981 AutoReturning = 0x10,
982 PendingLocate = 0x20,
983 PendingSetLoop = 0x40
986 /* stuff used in process() should be close together to
990 typedef void (Session::*process_function_type)(nframes_t);
992 AudioEngine& _engine;
993 mutable gint processing_prohibited;
994 process_function_type process_function;
995 process_function_type last_process_function;
996 bool waiting_for_sync_offset;
997 nframes_t _base_frame_rate;
998 nframes_t _current_frame_rate; //this includes video pullup offset
999 nframes_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1000 int transport_sub_state;
1001 mutable gint _record_status;
1002 volatile nframes_t _transport_frame;
1003 Location* end_location;
1004 Location* start_location;
1007 volatile float _transport_speed;
1008 volatile float _desired_transport_speed;
1009 float _last_transport_speed;
1010 bool auto_play_legal;
1011 nframes_t _last_slave_transport_frame;
1012 nframes_t maximum_output_latency;
1013 nframes_t last_stop_frame;
1014 volatile nframes64_t _requested_return_frame;
1015 BufferSet* _scratch_buffers;
1016 BufferSet* _silent_buffers;
1017 BufferSet* _mix_buffers;
1018 nframes_t current_block_size;
1019 nframes_t _worst_output_latency;
1020 nframes_t _worst_input_latency;
1021 nframes_t _worst_track_latency;
1022 bool _have_captured;
1024 float _meter_falloff;
1025 bool _end_location_is_free;
1027 void set_worst_io_latencies ();
1028 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1029 set_worst_io_latencies ();
1032 void update_latency_compensation_proxy (void* ignored);
1034 void ensure_buffers (ChanCount howmany);
1036 void process_scrub (nframes_t);
1037 void process_without_events (nframes_t);
1038 void process_with_events (nframes_t);
1039 void process_audition (nframes_t);
1040 int process_export (nframes_t, ARDOUR::ExportSpecification*);
1042 /* slave tracking */
1044 static const int delta_accumulator_size = 25;
1045 int delta_accumulator_cnt;
1046 long delta_accumulator[delta_accumulator_size];
1047 long average_slave_delta;
1049 bool have_first_delta_accumulator;
1057 SlaveState slave_state;
1058 nframes_t slave_wait_end;
1060 void reset_slave_state ();
1061 bool follow_slave (nframes_t, nframes_t);
1062 void set_slave_source (SlaveSource);
1065 int prepare_to_export (ARDOUR::ExportSpecification&);
1067 void prepare_diskstreams ();
1068 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1069 int process_routes (nframes_t, nframes_t);
1070 int silent_process_routes (nframes_t, nframes_t);
1072 bool get_rec_monitors_input () {
1073 if (actively_recording()) {
1076 if (Config->get_auto_input()) {
1084 int get_transport_declick_required () {
1086 if (transport_sub_state & PendingDeclickIn) {
1087 transport_sub_state &= ~PendingDeclickIn;
1089 } else if (transport_sub_state & PendingDeclickOut) {
1096 bool maybe_stop (nframes_t limit) {
1097 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1104 bool maybe_sync_start (nframes_t&, nframes_t&);
1106 void check_declick_out ();
1108 MIDI::MachineControl* mmc;
1109 MIDI::Port* _mmc_port;
1110 MIDI::Port* _mtc_port;
1111 MIDI::Port* _midi_port;
1114 bool session_send_mmc;
1115 bool session_send_mtc;
1116 bool session_midi_feedback;
1119 nframes_t last_loopend;
1121 boost::scoped_ptr<SessionDirectory> _session_dir;
1123 RingBuffer<Event*> pending_events;
1126 void when_engine_running ();
1127 void graph_reordered ();
1129 string _current_snapshot_name;
1131 XMLTree* state_tree;
1132 bool state_was_pending;
1133 StateOfTheState _state_of_the_state;
1136 int load_options (const XMLNode&);
1137 XMLNode& get_options () const;
1138 int load_state (string snapshot_name);
1139 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1141 nframes_t _last_roll_location;
1142 nframes_t _last_record_location;
1144 bool pending_locate_roll;
1145 nframes_t pending_locate_frame;
1146 bool pending_locate_flush;
1148 bool pending_auto_loop;
1150 Sample* butler_mixdown_buffer;
1151 float* butler_gain_buffer;
1152 pthread_t butler_thread;
1153 Glib::Mutex butler_request_lock;
1154 Glib::Cond butler_paused;
1155 bool butler_should_run;
1156 mutable gint butler_should_do_transport_work;
1157 int butler_request_pipe[2];
1159 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1161 struct ButlerRequest {
1170 enum PostTransportWork {
1171 PostTransportStop = 0x1,
1172 PostTransportDisableRecord = 0x2,
1173 PostTransportPosition = 0x8,
1174 PostTransportDidRecord = 0x20,
1175 PostTransportDuration = 0x40,
1176 PostTransportLocate = 0x80,
1177 PostTransportRoll = 0x200,
1178 PostTransportAbort = 0x800,
1179 PostTransportOverWrite = 0x1000,
1180 PostTransportSpeed = 0x2000,
1181 PostTransportAudition = 0x4000,
1182 PostTransportScrub = 0x8000,
1183 PostTransportReverse = 0x10000,
1184 PostTransportInputChange = 0x20000,
1185 PostTransportCurveRealloc = 0x40000
1188 static const PostTransportWork ProcessCannotProceedMask =
1189 PostTransportWork (PostTransportInputChange|
1191 PostTransportReverse|
1192 PostTransportCurveRealloc|
1194 PostTransportAudition|
1195 PostTransportLocate|
1198 PostTransportWork post_transport_work;
1200 void summon_butler ();
1201 void schedule_butler_transport_work ();
1202 int start_butler_thread ();
1203 void terminate_butler_thread ();
1204 static void *_butler_thread_work (void *arg);
1205 void* butler_thread_work ();
1207 uint32_t cumulative_rf_motion;
1210 void set_rf_speed (float speed);
1211 void reset_rf_scale (nframes_t frames_moved);
1213 Locations _locations;
1214 void locations_changed ();
1215 void locations_added (Location*);
1216 void handle_locations_changed (Locations::LocationList&);
1218 sigc::connection auto_punch_start_changed_connection;
1219 sigc::connection auto_punch_end_changed_connection;
1220 sigc::connection auto_punch_changed_connection;
1221 void auto_punch_start_changed (Location *);
1222 void auto_punch_end_changed (Location *);
1223 void auto_punch_changed (Location *);
1225 sigc::connection auto_loop_start_changed_connection;
1226 sigc::connection auto_loop_end_changed_connection;
1227 sigc::connection auto_loop_changed_connection;
1228 void auto_loop_changed (Location *);
1230 typedef list<Event *> Events;
1232 Events immediate_events;
1233 Events::iterator next_event;
1235 /* there can only ever be one of each of these */
1237 Event *auto_loop_event;
1238 Event *punch_out_event;
1239 Event *punch_in_event;
1243 void dump_events () const;
1244 void queue_event (Event *ev);
1245 void merge_event (Event*);
1246 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1247 bool _replace_event (Event*);
1248 bool _remove_event (Event *);
1249 void _clear_event_type (Event::Type);
1251 void first_stage_init (string path, string snapshot_name);
1252 int second_stage_init (bool new_tracks);
1253 void find_current_end ();
1254 void remove_empty_sounds ();
1256 void setup_midi_control ();
1257 //int midi_read (MIDI::Port *);
1259 void enable_record ();
1261 void increment_transport_position (uint32_t val) {
1262 if (max_frames - val < _transport_frame) {
1263 _transport_frame = max_frames;
1265 _transport_frame += val;
1269 void decrement_transport_position (uint32_t val) {
1270 if (val < _transport_frame) {
1271 _transport_frame -= val;
1273 _transport_frame = 0;
1277 void post_transport_motion ();
1278 static void *session_loader_thread (void *arg);
1282 void set_next_event ();
1283 void process_event (Event *ev);
1285 /* MIDI Machine Control */
1287 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1288 //void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1289 //void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1291 void spp_start (MIDI::Parser&);
1292 void spp_continue (MIDI::Parser&);
1293 void spp_stop (MIDI::Parser&);
1295 void mmc_deferred_play (MIDI::MachineControl &);
1296 void mmc_stop (MIDI::MachineControl &);
1297 void mmc_step (MIDI::MachineControl &, int);
1298 void mmc_pause (MIDI::MachineControl &);
1299 void mmc_record_pause (MIDI::MachineControl &);
1300 void mmc_record_strobe (MIDI::MachineControl &);
1301 void mmc_record_exit (MIDI::MachineControl &);
1302 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1303 void mmc_fast_forward (MIDI::MachineControl &);
1304 void mmc_rewind (MIDI::MachineControl &);
1305 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1306 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1307 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1309 struct timeval last_mmc_step;
1312 typedef sigc::slot<bool> MidiTimeoutCallback;
1313 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1315 MidiTimeoutList midi_timeouts;
1316 bool mmc_step_timeout ();
1318 MIDI::byte mmc_buffer[32];
1319 MIDI::byte mtc_msg[16];
1320 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1321 MIDI::byte midi_msg[16];
1322 nframes_t outbound_mtc_smpte_frame;
1323 SMPTE::Time transmitting_smpte_time;
1324 int next_quarter_frame_to_send;
1326 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1327 nframes_t _frames_per_hour;
1328 nframes_t _smpte_frames_per_hour;
1329 nframes_t _smpte_offset;
1330 bool _smpte_offset_negative;
1332 /* cache the most-recently requested time conversions. This helps when we
1333 * have multiple clocks showing the same time (e.g. the transport frame) */
1334 bool last_smpte_valid;
1335 nframes_t last_smpte_when;
1336 SMPTE::Time last_smpte;
1338 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1340 int send_full_time_code(nframes_t nframes);
1341 int send_midi_time_code_for_cycle(nframes_t nframes);
1343 nframes_t adjust_apparent_position (nframes_t frames);
1345 void reset_record_status ();
1347 int no_roll (nframes_t nframes, nframes_t offset);
1349 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1350 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1352 struct MIDIRequest {
1365 MIDI::MachineControl::Command mmc_cmd;
1366 nframes_t locate_frame;
1368 // for SendMessage type
1371 MIDI::channel_t chan;
1373 MIDI::EventTwoBytes data;
1384 void *operator new(size_t ignored) {
1385 return pool.alloc ();
1388 void operator delete(void *ptr, size_t size) {
1393 static MultiAllocSingleReleasePool pool;
1396 mutable gint butler_active;
1398 void change_midi_ports ();
1399 int use_config_midi_ports ();
1401 bool waiting_to_start;
1403 void set_play_loop (bool yn);
1404 void overwrite_some_buffers (Diskstream*);
1405 void flush_all_inserts ();
1406 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1407 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1408 void force_locate (nframes_t frame, bool with_roll = false);
1409 void set_diskstream_speed (Diskstream*, float speed);
1410 void set_transport_speed (float speed, bool abort = false);
1411 void stop_transport (bool abort = false);
1412 void start_transport ();
1413 void actually_start_transport ();
1414 void realtime_stop (bool abort);
1415 void non_realtime_start_scrub ();
1416 void non_realtime_set_speed ();
1417 void non_realtime_locate ();
1418 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1419 void non_realtime_overwrite (int entry_request_count, bool& finished);
1420 void butler_transport_work ();
1421 void post_transport ();
1422 void engine_halted ();
1423 void xrun_recovery ();
1425 TempoMap *_tempo_map;
1426 void tempo_map_changed (Change);
1428 /* edit/mix groups */
1430 int load_route_groups (const XMLNode&, bool is_edit);
1431 int load_edit_groups (const XMLNode&);
1432 int load_mix_groups (const XMLNode&);
1435 list<RouteGroup *> edit_groups;
1436 list<RouteGroup *> mix_groups;
1440 SerializedRCUManager<DiskstreamList> diskstreams;
1442 uint32_t dstream_buffer_size;
1443 int load_diskstreams (const XMLNode&);
1447 SerializedRCUManager<RouteList> routes;
1449 void add_routes (RouteList&, bool save);
1450 uint32_t destructive_index;
1452 int load_routes (const XMLNode&);
1453 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1457 bool solo_update_disabled;
1458 bool currently_soloing;
1460 void route_mute_changed (void *src);
1461 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1462 void catch_up_on_solo ();
1463 void update_route_solo_state ();
1464 void modify_solo_mute (bool, bool);
1465 void strip_portname_for_solo (string& portname);
1467 /* REGION MANAGEMENT */
1469 mutable Glib::Mutex region_lock;
1470 typedef map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1473 void add_region (boost::shared_ptr<Region>);
1474 void region_changed (Change, boost::weak_ptr<Region>);
1475 void remove_region (boost::weak_ptr<Region>);
1477 int load_regions (const XMLNode& node);
1481 mutable Glib::Mutex source_lock;
1482 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1487 SourceMap get_sources() { return sources; }
1492 int load_sources (const XMLNode& node);
1493 XMLNode& get_sources_as_xml ();
1495 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1499 mutable Glib::Mutex playlist_lock;
1500 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1501 PlaylistList playlists;
1502 PlaylistList unused_playlists;
1504 int load_playlists (const XMLNode&);
1505 int load_unused_playlists (const XMLNode&);
1506 void remove_playlist (boost::weak_ptr<Playlist>);
1507 void track_playlist (bool, boost::weak_ptr<Playlist>);
1509 boost::shared_ptr<Playlist> playlist_factory (string name);
1510 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1512 void playlist_length_changed ();
1513 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1515 /* NAMED SELECTIONS */
1517 mutable Glib::Mutex named_selection_lock;
1518 typedef set<NamedSelection *> NamedSelectionList;
1519 NamedSelectionList named_selections;
1521 int load_named_selections (const XMLNode&);
1523 NamedSelection *named_selection_factory (string name);
1524 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1526 /* CURVES and AUTOMATION LISTS */
1527 std::map<PBD::ID, Curve*> curves;
1528 std::map<PBD::ID, AutomationList*> automation_lists;
1530 /* DEFAULT FADE CURVES */
1532 float default_fade_steepness;
1533 float default_fade_msecs;
1537 boost::shared_ptr<Auditioner> auditioner;
1538 void set_audition (boost::shared_ptr<Region>);
1539 void non_realtime_set_audition ();
1540 boost::shared_ptr<Region> pending_audition_region;
1546 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1548 /* INSERT AND SEND MANAGEMENT */
1550 list<PortInsert *> _port_inserts;
1551 list<PluginInsert *> _plugin_inserts;
1552 list<Send *> _sends;
1553 boost::dynamic_bitset<uint32_t> send_bitset;
1554 boost::dynamic_bitset<uint32_t> insert_bitset;
1556 uint32_t insert_cnt;
1559 void add_processor (Processor *);
1560 void remove_processor (Processor *);
1564 struct space_and_path {
1565 uint32_t blocks; /* 4kB blocks */
1573 struct space_and_path_ascending_cmp {
1574 bool operator() (space_and_path a, space_and_path b) {
1575 return a.blocks > b.blocks;
1579 void setup_raid_path (string path);
1581 vector<space_and_path> session_dirs;
1582 vector<space_and_path>::iterator last_rr_session_dir;
1583 uint32_t _total_free_4k_blocks;
1584 Glib::Mutex space_lock;
1586 string get_best_session_directory_for_new_source ();
1587 void refresh_disk_space ();
1589 mutable gint _playback_load;
1590 mutable gint _capture_load;
1591 mutable gint _playback_load_min;
1592 mutable gint _capture_load_min;
1596 typedef list<boost::shared_ptr<Bundle> > BundleList;
1597 mutable Glib::Mutex bundle_lock;
1598 BundleList _bundles;
1599 XMLNode* _bundle_xml_node;
1600 int load_bundles (XMLNode const &);
1602 void reverse_diskstream_buffers ();
1604 UndoHistory _history;
1605 UndoTransaction* current_trans;
1607 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1608 GlobalRouteMeterState get_global_route_metering ();
1610 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1611 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1613 void set_global_mute (GlobalRouteBooleanState s, void *src);
1614 void set_global_solo (GlobalRouteBooleanState s, void *src);
1615 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1617 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1618 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1619 void reset_jack_connection (jack_client_t* jack);
1620 void record_enable_change_all (bool yn);
1622 XMLNode& state(bool);
1632 Click (nframes_t s, nframes_t d, const Sample *b)
1633 : start (s), duration (d), data (b) { offset = 0; }
1635 void *operator new(size_t ignored) {
1636 return pool.alloc ();
1639 void operator delete(void *ptr, size_t size) {
1647 typedef list<Click*> Clicks;
1651 boost::shared_ptr<IO> _click_io;
1653 Sample* click_emphasis_data;
1654 nframes_t click_length;
1655 nframes_t click_emphasis_length;
1656 mutable Glib::RWLock click_lock;
1658 static const Sample default_click[];
1659 static const nframes_t default_click_length;
1660 static const Sample default_click_emphasis[];
1661 static const nframes_t default_click_emphasis_length;
1664 void setup_click_sounds (int which);
1665 void clear_clicks ();
1666 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1668 vector<Route*> master_outs;
1670 /* range playback */
1672 list<AudioRange> current_audio_range;
1674 void set_play_range (bool yn);
1675 void setup_auto_play ();
1680 boost::shared_ptr<IO> _master_out;
1681 boost::shared_ptr<IO> _control_out;
1683 gain_t* _gain_automation_buffer;
1684 pan_t** _pan_automation_buffer;
1685 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1686 uint32_t _npan_buffers;
1690 long _vst_callback (VSTPlugin*,
1697 /* number of hardware ports we're using,
1698 based on max (requested,available)
1701 uint32_t n_physical_outputs;
1702 uint32_t n_physical_inputs;
1705 int find_all_sources (std::string path, std::set<std::string>& result);
1706 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1708 LayerModel layer_model;
1709 CrossfadeModel xfade_model;
1711 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1712 Glib::Mutex controllables_lock;
1713 Controllables controllables;
1715 void reset_native_file_format();
1716 bool first_file_data_format_reset;
1717 bool first_file_header_format_reset;
1719 void config_changed (const char*);
1721 XMLNode& get_control_protocol_state ();
1723 void set_history_depth (uint32_t depth);
1724 void sync_order_keys ();
1726 static bool _disable_all_loaded_plugins;
1729 } // namespace ARDOUR
1731 #endif /* __ardour_session_h__ */