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__
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>
76 class AudioDiskstream;
81 class AudioFileSource;
96 class ControlProtocolInfo;
98 struct AudioExportSpecification;
106 class Session : public PBD::StatefulDestructible
110 typedef std::pair<boost::weak_ptr<Route>,bool> RouteBooleanState;
111 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
112 typedef std::pair<boost::weak_ptr<Route>,MeterPoint> RouteMeterState;
113 typedef vector<RouteMeterState> GlobalRouteMeterState;
137 InputConfigurationChange,
141 /* only one of each of these events
142 can be queued at any one time
158 nframes_t action_frame;
159 nframes_t target_frame;
168 boost::shared_ptr<Region> region;
170 list<AudioRange> audio_range;
171 list<MusicRange> music_range;
173 Event(Type t, Action a, nframes_t when, nframes_t where, float spd, bool yn = false)
177 target_frame (where),
181 void set_ptr (void* p) {
185 bool before (const Event& other) const {
186 return action_frame < other.action_frame;
189 bool after (const Event& other) const {
190 return action_frame > other.action_frame;
193 static bool compare (const Event *e1, const Event *e2) {
194 return e1->before (*e2);
197 void *operator new (size_t ignored) {
198 return pool.alloc ();
201 void operator delete(void *ptr, size_t size) {
205 static const nframes_t Immediate = 0;
208 static MultiAllocSingleReleasePool pool;
211 /* creating from an XML file */
213 Session (AudioEngine&,
214 const string& fullpath,
215 const string& snapshot_name,
216 string mix_template = "");
218 /* creating a new Session */
220 Session (AudioEngine&,
222 string snapshot_name,
223 AutoConnectOption input_auto_connect,
224 AutoConnectOption output_auto_connect,
225 uint32_t control_out_channels,
226 uint32_t master_out_channels,
227 uint32_t n_physical_in,
228 uint32_t n_physical_out,
229 nframes_t initial_length);
234 static int find_session (string str, string& path, string& snapshot, bool& isnew);
236 string path() const { return _path; }
237 string name() const { return _name; }
238 string snap_name() const { return _current_snapshot_name; }
239 string raid_path () const;
240 string export_dir () const;
242 void set_snap_name ();
246 bool dirty() const { return _state_of_the_state & Dirty; }
247 void set_deletion_in_progress ();
248 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
249 sigc::signal<void> DirtyChanged;
251 std::string sound_dir (bool with_path = true) const;
252 std::string peak_dir () const;
253 std::string dead_sound_dir () const;
254 std::string automation_dir () const;
255 std::string analysis_dir() const;
257 int ensure_subdirs ();
259 Glib::ustring peak_path (Glib::ustring) const;
261 static string suffixed_search_path (std::string suffix, bool data);
262 static string control_protocol_path ();
263 static string template_path ();
264 static string template_dir ();
265 static void get_template_list (list<string>&);
267 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
268 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
270 void process (nframes_t nframes);
272 vector<Sample*>& get_passthru_buffers() { return _passthru_buffers; }
273 vector<Sample*>& get_silent_buffers (uint32_t howmany);
274 vector<Sample*>& get_send_buffers () { return _send_buffers; }
276 void add_diskstream (boost::shared_ptr<Diskstream>);
277 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
278 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
280 bool have_captured() const { return _have_captured; }
282 void refill_all_diskstream_buffers ();
283 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
285 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
286 uint32_t n_diskstreams() const;
288 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
289 typedef std::list<boost::shared_ptr<Route> > RouteList;
291 boost::shared_ptr<RouteList> get_routes() const {
292 return routes.reader ();
295 uint32_t nroutes() const { return routes.reader()->size(); }
296 uint32_t ntracks () const;
297 uint32_t nbusses () const;
299 struct RoutePublicOrderSorter {
300 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
303 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
304 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
305 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
307 boost::shared_ptr<Route> route_by_name (string);
308 boost::shared_ptr<Route> route_by_id (PBD::ID);
309 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
311 bool route_name_unique (string) const;
313 bool get_record_enabled() const {
314 return (record_status () >= Enabled);
317 RecordState record_status() const {
318 return (RecordState) g_atomic_int_get (&_record_status);
321 bool actively_recording () {
322 return record_status() == Recording;
325 bool record_enabling_legal () const;
326 void maybe_enable_record ();
327 void disable_record (bool rt_context, bool force = false);
328 void step_back_from_record ();
330 void maybe_write_autosave ();
332 /* Proxy signal for region hidden changes */
334 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
336 /* Emitted when all i/o connections are complete */
338 sigc::signal<void> IOConnectionsComplete;
340 /* Record status signals */
342 sigc::signal<void> RecordStateChanged;
344 /* Transport mechanism signals */
346 sigc::signal<void> TransportStateChange; /* generic */
347 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
348 sigc::signal<void> DurationChanged;
349 sigc::signal<void> HaltOnXrun;
350 sigc::signal<void> TransportLooped;
352 sigc::signal<void,RouteList&> RouteAdded;
354 void request_roll_at_and_return (nframes_t start, nframes_t return_to);
355 void request_bounded_roll (nframes_t start, nframes_t end);
356 void request_stop (bool abort = false);
357 void request_locate (nframes_t frame, bool with_roll = false);
359 void request_play_loop (bool yn);
360 bool get_play_loop () const { return play_loop; }
362 nframes_t last_transport_start() const { return _last_roll_location; }
363 void goto_end () { request_locate (end_location->start(), false);}
364 void goto_start () { request_locate (start_location->start(), false); }
365 void set_session_start (nframes_t start) { start_location->set_start(start); }
366 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
367 void use_rf_shuttle_speed ();
368 void allow_auto_play (bool yn);
369 void request_transport_speed (float speed);
370 void request_overwrite_buffer (Diskstream*);
371 void request_diskstream_speed (Diskstream&, float speed);
372 void request_input_change_handling ();
374 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
375 bool transport_locked () const;
379 int remove_region_from_region_list (boost::shared_ptr<Region>);
381 nframes_t get_maximum_extent () const;
382 nframes_t current_end_frame() const { return end_location->start(); }
383 nframes_t current_start_frame() const { return start_location->start(); }
384 nframes_t frame_rate() const { return _current_frame_rate; }
385 nframes_t frames_per_hour() const { return _frames_per_hour; }
387 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
388 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
390 float smpte_frames_per_second() const;
391 bool smpte_drop_frames() const;
395 Locations *locations() { return &_locations; }
397 sigc::signal<void,Location*> auto_loop_location_changed;
398 sigc::signal<void,Location*> auto_punch_location_changed;
399 sigc::signal<void> locations_modified;
401 void set_auto_punch_location (Location *);
402 void set_auto_loop_location (Location *);
403 int location_name(string& result, string base = string(""));
405 void reset_input_monitor_state ();
407 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
408 void remove_event (nframes_t frame, Event::Type type);
409 void clear_events (Event::Type type);
411 nframes_t get_block_size() const { return current_block_size; }
412 nframes_t worst_output_latency () const { return _worst_output_latency; }
413 nframes_t worst_input_latency () const { return _worst_input_latency; }
414 nframes_t worst_track_latency () const { return _worst_track_latency; }
416 int save_state (string snapshot_name, bool pending = false);
417 int restore_state (string snapshot_name);
418 int save_template (string template_name);
419 int save_history (string snapshot_name = "");
420 int restore_history (string snapshot_name);
421 void remove_state (string snapshot_name);
422 void rename_state (string old_name, string new_name);
423 void remove_pending_capture_state ();
425 static int rename_template (string old_name, string new_name);
427 static int delete_template (string name);
429 sigc::signal<void,string> StateSaved;
430 sigc::signal<void> StateReady;
432 vector<string*>* possible_states() const;
433 static vector<string*>* possible_states(string path);
435 XMLNode& get_state();
436 int set_state(const XMLNode& node); // not idempotent
437 XMLNode& get_template();
439 void add_instant_xml (XMLNode&, const std::string& dir);
441 enum StateOfTheState {
446 InitialConnecting = 0x8,
451 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
453 RouteGroup* add_edit_group (string);
454 RouteGroup* add_mix_group (string);
456 void remove_edit_group (RouteGroup&);
457 void remove_mix_group (RouteGroup&);
459 RouteGroup *mix_group_by_name (string);
460 RouteGroup *edit_group_by_name (string);
462 sigc::signal<void,RouteGroup*> edit_group_added;
463 sigc::signal<void,RouteGroup*> mix_group_added;
464 sigc::signal<void> edit_group_removed;
465 sigc::signal<void> mix_group_removed;
467 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
468 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
473 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
474 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
479 /* fundamental operations. duh. */
481 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
482 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
484 void remove_route (boost::shared_ptr<Route>);
486 void resort_routes ();
487 void resort_routes_using (boost::shared_ptr<RouteList>);
489 void set_remote_control_ids();
491 AudioEngine &engine() { return _engine; };
498 nframes_t transport_frame () const {return _transport_frame; }
499 nframes_t audible_frame () const;
500 nframes64_t requested_return_frame() const { return _requested_return_frame; }
514 int set_smpte_format (SmpteFormat);
515 void sync_time_vars();
517 void bbt_time (nframes_t when, BBT_Time&);
518 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
519 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
520 void smpte_time (SMPTE::Time &);
521 void smpte_time (nframes_t when, SMPTE::Time&);
522 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
524 void smpte_duration (nframes_t, SMPTE::Time&) const;
525 void smpte_duration_string (char *, nframes_t) const;
527 void set_smpte_offset (nframes_t);
528 nframes_t smpte_offset () const { return _smpte_offset; }
529 void set_smpte_offset_negative (bool);
530 bool smpte_offset_negative () const { return _smpte_offset_negative; }
532 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
534 static sigc::signal<void> StartTimeChanged;
535 static sigc::signal<void> EndTimeChanged;
536 static sigc::signal<void> SMPTEOffsetChanged;
538 void request_slave_source (SlaveSource);
539 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
541 float transport_speed() const { return _transport_speed; }
542 bool transport_stopped() const { return _transport_speed == 0.0f; }
543 bool transport_rolling() const { return _transport_speed != 0.0f; }
545 void set_silent (bool yn);
546 bool silent () { return _silent; }
548 int jack_slave_sync (nframes_t);
550 TempoMap& tempo_map() { return *_tempo_map; }
554 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionAdded;
555 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionRemoved;
557 int region_name (string& result, string base = string(""), bool newlevel = false) const;
558 string new_region_name (string);
559 string path_from_region_name (string name, string identifier);
561 boost::shared_ptr<AudioRegion> find_whole_file_parent (boost::shared_ptr<AudioRegion const>);
562 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
564 boost::shared_ptr<AudioRegion> XMLRegionFactory (const XMLNode&, bool full);
566 template<class T> void foreach_audio_region (T *obj, void (T::*func)(boost::shared_ptr<AudioRegion>));
568 /* source management */
570 struct import_status : public InterThreadInfo {
576 volatile bool freeze;
577 std::vector<Glib::ustring> paths;
584 void import_audiofiles (import_status&);
585 bool sample_rate_convert (import_status&, string infile, string& outfile);
586 string build_tmp_convert_name (string file);
588 SlaveSource post_export_slave;
589 nframes_t post_export_position;
591 int start_audio_export (ARDOUR::AudioExportSpecification&);
592 int stop_audio_export (ARDOUR::AudioExportSpecification&);
593 void finalize_audio_export ();
595 void add_source (boost::shared_ptr<Source>);
596 void remove_source (boost::weak_ptr<Source>);
598 struct cleanup_report {
599 vector<string> paths;
603 int cleanup_sources (cleanup_report&);
604 int cleanup_trash_sources (cleanup_report&);
606 int destroy_region (boost::shared_ptr<Region>);
607 int destroy_regions (std::list<boost::shared_ptr<Region> >);
609 int remove_last_capture ();
611 /* handlers should return -1 for "stop cleanup", 0 for
612 "yes, delete this playlist" and 1 for "no, don't delete
616 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
618 /* handlers should return !0 for use pending state, 0 for
622 static sigc::signal<int> AskAboutPendingState;
624 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
626 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
627 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
629 /* playlist management */
631 boost::shared_ptr<Playlist> playlist_by_name (string name);
632 void add_playlist (boost::shared_ptr<Playlist>);
633 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
634 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
636 uint32_t n_playlists() const;
638 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
639 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
641 /* named selections */
643 NamedSelection* named_selection_by_name (string name);
644 void add_named_selection (NamedSelection *);
645 void remove_named_selection (NamedSelection *);
647 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
648 sigc::signal<void> NamedSelectionAdded;
649 sigc::signal<void> NamedSelectionRemoved;
651 /* Curves and AutomationLists (TODO when they go away) */
652 void add_curve(Curve*);
653 void add_automation_list(AutomationList*);
657 float get_default_fade_length () const { return default_fade_msecs; }
658 float get_default_fade_steepness () const { return default_fade_steepness; }
659 void set_default_fade (float steepness, float msecs);
663 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
664 void audition_playlist ();
665 void audition_region (boost::shared_ptr<Region>);
666 void cancel_audition ();
667 bool is_auditioning () const;
669 sigc::signal<void,bool> AuditionActive;
671 /* flattening stuff */
673 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite, vector<boost::shared_ptr<AudioSource> >&,
674 InterThreadInfo& wot);
675 int freeze (InterThreadInfo&);
677 /* session-wide solo/mute/rec-enable */
679 bool soloing() const { return currently_soloing; }
681 void set_all_solo (bool);
682 void set_all_mute (bool);
684 sigc::signal<void,bool> SoloActive;
685 sigc::signal<void> SoloChanged;
687 void record_disenable_all ();
688 void record_enable_all ();
690 /* control/master out */
692 boost::shared_ptr<IO> control_out() const { return _control_out; }
693 boost::shared_ptr<IO> master_out() const { return _master_out; }
695 /* insert/send management */
697 uint32_t n_port_inserts() const { return _port_inserts.size(); }
698 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
699 uint32_t n_sends() const { return _sends.size(); }
701 static void set_disable_all_loaded_plugins (bool yn) {
702 _disable_all_loaded_plugins = yn;
704 static bool get_disable_all_loaded_plugins() {
705 return _disable_all_loaded_plugins;
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();
717 /* I/O Connections */
719 template<class T> void foreach_connection (T *obj, void (T::*func)(Connection *));
720 void add_connection (Connection *);
721 void remove_connection (Connection *);
722 Connection *connection_by_name (string) const;
724 sigc::signal<void,Connection *> ConnectionAdded;
725 sigc::signal<void,Connection *> ConnectionRemoved;
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_receive_device_id (uint32_t id);
751 void set_mmc_send_device_id (uint32_t id);
755 void start_scrub (nframes_t where);
757 void set_scrub_speed (float);
758 nframes_t scrub_buffer_size() const;
759 sigc::signal<void> ScrubReady;
761 /* History (for editors, mixers, UIs etc.) */
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 (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; }
863 /* disk, buffer loads */
865 uint32_t playback_load ();
866 uint32_t capture_load ();
867 uint32_t playback_load_min ();
868 uint32_t capture_load_min ();
870 void reset_playback_load_min ();
871 void reset_capture_load_min ();
873 float read_data_rate () const;
874 float write_data_rate () const;
878 void set_audio_range (list<AudioRange>&);
879 void set_music_range (list<MusicRange>&);
881 void request_play_range (bool yn);
882 bool get_play_range () const { return _play_range; }
885 typedef vector<string> FavoriteDirs;
887 static int read_favorite_dirs (FavoriteDirs&);
889 static int write_favorite_dirs (FavoriteDirs&);
893 static const char* template_suffix() { return _template_suffix; }
894 static const char* statefile_suffix() { return _statefile_suffix; }
895 static const char* pending_suffix() { return _pending_suffix; }
897 /* buffers for gain and pan */
899 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
900 pan_t** pan_automation_buffer() const { return _pan_automation_buffer; }
902 /* buffers for conversion */
911 static long vst_callback (AEffect* effect,
918 typedef float (*compute_peak_t) (Sample *, nframes_t, float);
919 typedef void (*find_peaks_t) (Sample *, nframes_t, float *, float*);
920 typedef void (*apply_gain_to_buffer_t) (Sample *, nframes_t, float);
921 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, nframes_t, float);
922 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, nframes_t);
924 static compute_peak_t compute_peak;
925 static find_peaks_t find_peaks;
926 static apply_gain_to_buffer_t apply_gain_to_buffer;
927 static mix_buffers_with_gain_t mix_buffers_with_gain;
928 static mix_buffers_no_gain_t mix_buffers_no_gain;
930 static sigc::signal<void> SendFeedback;
934 PBD::Controllable* controllable_by_id (const PBD::ID&);
936 void add_controllable (PBD::Controllable*);
937 void remove_controllable (PBD::Controllable*);
940 friend class AudioEngine;
941 void set_block_size (nframes_t nframes);
942 void set_frame_rate (nframes_t nframes);
945 friend class Diskstream;
947 void wait_till_butler_finished();
951 void schedule_curve_reallocation ();
952 void update_latency_compensation (bool, bool);
955 int create (bool& new_session, const string& mix_template, nframes_t initial_length);
958 nframes_t compute_initial_length ();
960 static const char* _template_suffix;
961 static const char* _statefile_suffix;
962 static const char* _pending_suffix;
965 PendingDeclickIn = 0x1,
966 PendingDeclickOut = 0x2,
967 StopPendingCapture = 0x4,
968 AutoReturning = 0x10,
969 PendingLocate = 0x20,
970 PendingSetLoop = 0x40
973 /* stuff used in process() should be close together to
977 typedef void (Session::*process_function_type)(nframes_t);
979 AudioEngine& _engine;
980 mutable gint processing_prohibited;
981 process_function_type process_function;
982 process_function_type last_process_function;
983 bool waiting_for_sync_offset;
984 nframes_t _base_frame_rate;
985 nframes_t _current_frame_rate; //this includes video pullup offset
986 int transport_sub_state;
987 mutable gint _record_status;
988 volatile nframes_t _transport_frame;
989 Location* end_location;
990 Location* start_location;
993 volatile float _transport_speed;
994 volatile float _desired_transport_speed;
995 float _last_transport_speed;
996 bool auto_play_legal;
997 nframes_t _last_slave_transport_frame;
998 nframes_t maximum_output_latency;
999 nframes_t last_stop_frame;
1000 volatile nframes64_t _requested_return_frame;
1001 vector<Sample *> _passthru_buffers;
1002 vector<Sample *> _silent_buffers;
1003 vector<Sample *> _send_buffers;
1004 nframes_t current_block_size;
1005 nframes_t _worst_output_latency;
1006 nframes_t _worst_input_latency;
1007 nframes_t _worst_track_latency;
1008 bool _have_captured;
1010 float _meter_falloff;
1011 bool _end_location_is_free;
1013 void set_worst_io_latencies ();
1014 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1015 set_worst_io_latencies ();
1018 void update_latency_compensation_proxy (void* ignored);
1020 void ensure_passthru_buffers (uint32_t howmany);
1022 void process_scrub (nframes_t);
1023 void process_without_events (nframes_t);
1024 void process_with_events (nframes_t);
1025 void process_audition (nframes_t);
1026 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1028 /* slave tracking */
1030 static const int delta_accumulator_size = 25;
1031 int delta_accumulator_cnt;
1032 long delta_accumulator[delta_accumulator_size];
1033 long average_slave_delta;
1035 bool have_first_delta_accumulator;
1043 SlaveState slave_state;
1044 nframes_t slave_wait_end;
1046 void reset_slave_state ();
1047 bool follow_slave (nframes_t, nframes_t);
1048 void set_slave_source (SlaveSource);
1051 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1053 void prepare_diskstreams ();
1054 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1055 int process_routes (nframes_t, nframes_t);
1056 int silent_process_routes (nframes_t, nframes_t);
1058 bool get_rec_monitors_input () {
1059 if (actively_recording()) {
1062 if (Config->get_auto_input()) {
1070 int get_transport_declick_required () {
1072 if (transport_sub_state & PendingDeclickIn) {
1073 transport_sub_state &= ~PendingDeclickIn;
1075 } else if (transport_sub_state & PendingDeclickOut) {
1082 bool maybe_stop (nframes_t limit) {
1083 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1090 bool maybe_sync_start (nframes_t&, nframes_t&);
1092 void check_declick_out ();
1094 MIDI::MachineControl* mmc;
1095 MIDI::Port* _mmc_port;
1096 MIDI::Port* _mtc_port;
1097 MIDI::Port* _midi_port;
1100 bool session_send_mmc;
1101 bool session_send_mtc;
1102 bool session_midi_feedback;
1105 nframes_t last_loopend;
1107 RingBuffer<Event*> pending_events;
1110 void when_engine_running ();
1111 void graph_reordered ();
1113 string _current_snapshot_name;
1115 XMLTree* state_tree;
1116 bool state_was_pending;
1117 StateOfTheState _state_of_the_state;
1120 int load_options (const XMLNode&);
1121 XMLNode& get_options () const;
1122 int load_state (string snapshot_name);
1123 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1125 nframes_t _last_roll_location;
1126 nframes_t _last_record_location;
1127 bool pending_locate_roll;
1128 nframes_t pending_locate_frame;
1130 bool pending_locate_flush;
1132 bool pending_auto_loop;
1134 Sample* butler_mixdown_buffer;
1135 float* butler_gain_buffer;
1136 pthread_t butler_thread;
1137 Glib::Mutex butler_request_lock;
1138 Glib::Cond butler_paused;
1139 bool butler_should_run;
1140 mutable gint butler_should_do_transport_work;
1141 int butler_request_pipe[2];
1143 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1145 struct ButlerRequest {
1154 enum PostTransportWork {
1155 PostTransportStop = 0x1,
1156 PostTransportDisableRecord = 0x2,
1157 PostTransportPosition = 0x8,
1158 PostTransportDidRecord = 0x20,
1159 PostTransportDuration = 0x40,
1160 PostTransportLocate = 0x80,
1161 PostTransportRoll = 0x200,
1162 PostTransportAbort = 0x800,
1163 PostTransportOverWrite = 0x1000,
1164 PostTransportSpeed = 0x2000,
1165 PostTransportAudition = 0x4000,
1166 PostTransportScrub = 0x8000,
1167 PostTransportReverse = 0x10000,
1168 PostTransportInputChange = 0x20000,
1169 PostTransportCurveRealloc = 0x40000
1172 static const PostTransportWork ProcessCannotProceedMask =
1173 PostTransportWork (PostTransportInputChange|
1175 PostTransportReverse|
1176 PostTransportCurveRealloc|
1178 PostTransportAudition|
1179 PostTransportLocate|
1182 PostTransportWork post_transport_work;
1184 void summon_butler ();
1185 void schedule_butler_transport_work ();
1186 int start_butler_thread ();
1187 void terminate_butler_thread ();
1188 static void *_butler_thread_work (void *arg);
1189 void* butler_thread_work ();
1191 uint32_t cumulative_rf_motion;
1194 void set_rf_speed (float speed);
1195 void reset_rf_scale (nframes_t frames_moved);
1197 Locations _locations;
1198 void locations_changed ();
1199 void locations_added (Location*);
1200 void handle_locations_changed (Locations::LocationList&);
1202 sigc::connection auto_punch_start_changed_connection;
1203 sigc::connection auto_punch_end_changed_connection;
1204 sigc::connection auto_punch_changed_connection;
1205 void auto_punch_start_changed (Location *);
1206 void auto_punch_end_changed (Location *);
1207 void auto_punch_changed (Location *);
1209 sigc::connection auto_loop_start_changed_connection;
1210 sigc::connection auto_loop_end_changed_connection;
1211 sigc::connection auto_loop_changed_connection;
1212 void auto_loop_changed (Location *);
1214 typedef list<Event *> Events;
1216 Events immediate_events;
1217 Events::iterator next_event;
1219 /* there can only ever be one of each of these */
1221 Event *auto_loop_event;
1222 Event *punch_out_event;
1223 Event *punch_in_event;
1227 void dump_events () const;
1228 void queue_event (Event *ev);
1229 void merge_event (Event*);
1230 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1231 bool _replace_event (Event*);
1232 bool _remove_event (Event *);
1233 void _clear_event_type (Event::Type);
1235 void first_stage_init (string path, string snapshot_name);
1236 int second_stage_init (bool new_tracks);
1237 void find_current_end ();
1238 void remove_empty_sounds ();
1240 void setup_midi_control ();
1241 int midi_read (MIDI::Port *);
1243 void enable_record ();
1245 void increment_transport_position (uint32_t val) {
1246 if (max_frames - val < _transport_frame) {
1247 _transport_frame = max_frames;
1249 _transport_frame += val;
1253 void decrement_transport_position (uint32_t val) {
1254 if (val < _transport_frame) {
1255 _transport_frame -= val;
1257 _transport_frame = 0;
1261 void post_transport_motion ();
1262 static void *session_loader_thread (void *arg);
1266 void set_next_event ();
1267 void process_event (Event *);
1269 /* MIDI Machine Control */
1271 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1272 void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1273 void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1275 void spp_start (MIDI::Parser&);
1276 void spp_continue (MIDI::Parser&);
1277 void spp_stop (MIDI::Parser&);
1279 void mmc_deferred_play (MIDI::MachineControl &);
1280 void mmc_stop (MIDI::MachineControl &);
1281 void mmc_step (MIDI::MachineControl &, int);
1282 void mmc_pause (MIDI::MachineControl &);
1283 void mmc_record_pause (MIDI::MachineControl &);
1284 void mmc_record_strobe (MIDI::MachineControl &);
1285 void mmc_record_exit (MIDI::MachineControl &);
1286 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1287 void mmc_fast_forward (MIDI::MachineControl &);
1288 void mmc_rewind (MIDI::MachineControl &);
1289 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1290 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1291 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1293 struct timeval last_mmc_step;
1296 typedef sigc::slot<bool> MidiTimeoutCallback;
1297 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1299 MidiTimeoutList midi_timeouts;
1300 bool mmc_step_timeout ();
1302 MIDI::byte mmc_buffer[32];
1303 MIDI::byte mtc_msg[16];
1304 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1305 MIDI::byte midi_msg[16];
1306 nframes_t outbound_mtc_smpte_frame;
1307 SMPTE::Time transmitting_smpte_time;
1308 int next_quarter_frame_to_send;
1310 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1311 nframes_t _frames_per_hour;
1312 nframes_t _smpte_frames_per_hour;
1313 nframes_t _smpte_offset;
1314 bool _smpte_offset_negative;
1316 /* cache the most-recently requested time conversions.
1317 this helps when we have multiple clocks showing the
1318 same time (e.g. the transport frame)
1321 bool last_smpte_valid;
1322 nframes_t last_smpte_when;
1323 SMPTE::Time last_smpte;
1325 int send_full_time_code ();
1326 int send_midi_time_code ();
1328 void send_full_time_code_in_another_thread ();
1329 void send_midi_time_code_in_another_thread ();
1330 void send_time_code_in_another_thread (bool full);
1331 void send_mmc_in_another_thread (MIDI::MachineControl::Command, nframes_t frame = 0);
1333 nframes_t adjust_apparent_position (nframes_t frames);
1335 void reset_record_status ();
1337 int no_roll (nframes_t nframes, nframes_t offset);
1339 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1340 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1342 struct MIDIRequest {
1355 MIDI::MachineControl::Command mmc_cmd;
1356 nframes_t locate_frame;
1358 // for SendMessage type
1361 MIDI::channel_t chan;
1363 MIDI::EventTwoBytes data;
1374 void *operator new(size_t ignored) {
1375 return pool.alloc ();
1378 void operator delete(void *ptr, size_t size) {
1383 static MultiAllocSingleReleasePool pool;
1386 Glib::Mutex midi_lock;
1387 pthread_t midi_thread;
1388 int midi_request_pipe[2];
1389 mutable gint butler_active;
1390 RingBuffer<MIDIRequest*> midi_requests;
1392 int start_midi_thread ();
1393 void terminate_midi_thread ();
1394 void poke_midi_thread ();
1395 static void *_midi_thread_work (void *arg);
1396 void midi_thread_work ();
1397 void change_midi_ports ();
1398 int use_config_midi_ports ();
1400 bool waiting_to_start;
1402 void set_play_loop (bool yn);
1403 void overwrite_some_buffers (Diskstream*);
1404 void flush_all_redirects ();
1405 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1406 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1407 void force_locate (nframes_t frame, bool with_roll = false);
1408 void set_diskstream_speed (Diskstream*, float speed);
1409 void set_transport_speed (float speed, bool abort = false);
1410 void stop_transport (bool abort = false);
1411 void start_transport ();
1412 void actually_start_transport ();
1413 void realtime_stop (bool abort);
1414 void non_realtime_start_scrub ();
1415 void non_realtime_set_speed ();
1416 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1417 void non_realtime_overwrite (int entry_request_count, bool& finished);
1418 void butler_transport_work ();
1419 void post_transport ();
1420 void engine_halted ();
1421 void xrun_recovery ();
1423 TempoMap *_tempo_map;
1424 void tempo_map_changed (Change);
1426 /* edit/mix groups */
1428 int load_route_groups (const XMLNode&, bool is_edit);
1429 int load_edit_groups (const XMLNode&);
1430 int load_mix_groups (const XMLNode&);
1433 list<RouteGroup *> edit_groups;
1434 list<RouteGroup *> mix_groups;
1438 SerializedRCUManager<DiskstreamList> diskstreams;
1440 uint32_t dstream_buffer_size;
1441 int load_diskstreams (const XMLNode&);
1445 SerializedRCUManager<RouteList> routes;
1447 void add_routes (RouteList&, bool save);
1448 uint32_t destructive_index;
1450 int load_routes (const XMLNode&);
1451 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1455 bool solo_update_disabled;
1456 bool currently_soloing;
1458 void route_mute_changed (void *src);
1459 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1460 void catch_up_on_solo ();
1461 void update_route_solo_state ();
1462 void modify_solo_mute (bool, bool);
1463 void strip_portname_for_solo (string& portname);
1465 /* REGION MANAGEMENT */
1467 mutable Glib::Mutex region_lock;
1468 typedef map<PBD::ID,boost::shared_ptr<AudioRegion> > AudioRegionList;
1469 AudioRegionList audio_regions;
1471 void add_region (boost::shared_ptr<Region>);
1472 void region_changed (Change, boost::weak_ptr<Region>);
1473 void remove_region (boost::weak_ptr<Region>);
1475 int load_regions (const XMLNode& node);
1479 mutable Glib::Mutex audio_source_lock;
1480 typedef std::map<PBD::ID,boost::shared_ptr<AudioSource> > AudioSourceList;
1482 AudioSourceList audio_sources;
1484 int load_sources (const XMLNode& node);
1485 XMLNode& get_sources_as_xml ();
1487 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1491 mutable Glib::Mutex playlist_lock;
1492 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1493 PlaylistList playlists;
1494 PlaylistList unused_playlists;
1496 int load_playlists (const XMLNode&);
1497 int load_unused_playlists (const XMLNode&);
1498 void remove_playlist (boost::weak_ptr<Playlist>);
1499 void track_playlist (bool, boost::weak_ptr<Playlist>);
1501 boost::shared_ptr<Playlist> playlist_factory (string name);
1502 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1504 void playlist_length_changed ();
1505 void diskstream_playlist_changed (boost::weak_ptr<Diskstream>);
1507 /* NAMED SELECTIONS */
1509 mutable Glib::Mutex named_selection_lock;
1510 typedef set<NamedSelection *> NamedSelectionList;
1511 NamedSelectionList named_selections;
1513 int load_named_selections (const XMLNode&);
1515 NamedSelection *named_selection_factory (string name);
1516 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1518 /* CURVES and AUTOMATION LISTS */
1519 std::map<PBD::ID, Curve*> curves;
1520 std::map<PBD::ID, AutomationList*> automation_lists;
1522 /* DEFAULT FADE CURVES */
1524 float default_fade_steepness;
1525 float default_fade_msecs;
1529 boost::shared_ptr<Auditioner> auditioner;
1530 void set_audition (boost::shared_ptr<Region>);
1531 void non_realtime_set_audition ();
1532 boost::shared_ptr<Region> pending_audition_region;
1538 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1540 /* INSERT AND SEND MANAGEMENT */
1542 list<PortInsert *> _port_inserts;
1543 list<PluginInsert *> _plugin_inserts;
1544 list<Send *> _sends;
1545 boost::dynamic_bitset<uint32_t> send_bitset;
1546 boost::dynamic_bitset<uint32_t> insert_bitset;
1548 uint32_t insert_cnt;
1551 void add_redirect (Redirect *);
1552 void remove_redirect (Redirect *);
1556 struct space_and_path {
1557 uint32_t blocks; /* 4kB blocks */
1565 struct space_and_path_ascending_cmp {
1566 bool operator() (space_and_path a, space_and_path b) {
1567 return a.blocks > b.blocks;
1571 void setup_raid_path (string path);
1573 vector<space_and_path> session_dirs;
1574 vector<space_and_path>::iterator last_rr_session_dir;
1575 uint32_t _total_free_4k_blocks;
1576 Glib::Mutex space_lock;
1578 static const char* old_sound_dir_name;
1579 static const char* sound_dir_name;
1580 static const char* dead_sound_dir_name;
1581 static const char* interchange_dir_name;
1582 static const char* peak_dir_name;
1583 static const char* export_dir_name;
1585 string old_sound_dir (bool with_path = true) const;
1586 string discover_best_sound_dir (bool destructive = false);
1587 int ensure_sound_dir (string, string&);
1588 void refresh_disk_space ();
1590 mutable gint _playback_load;
1591 mutable gint _capture_load;
1592 mutable gint _playback_load_min;
1593 mutable gint _capture_load_min;
1595 /* I/O Connections */
1597 typedef list<Connection *> ConnectionList;
1598 mutable Glib::Mutex connection_lock;
1599 ConnectionList _connections;
1600 int load_connections (const XMLNode&);
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 audio ports we're using,
1698 based on max (requested,available)
1701 uint32_t n_physical_audio_outputs;
1702 uint32_t n_physical_audio_inputs;
1704 int find_all_sources (std::string path, std::set<std::string>& result);
1705 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1707 LayerModel layer_model;
1708 CrossfadeModel xfade_model;
1710 typedef std::set<PBD::Controllable*> Controllables;
1711 Glib::Mutex controllables_lock;
1712 Controllables controllables;
1714 void reset_native_file_format();
1715 bool first_file_data_format_reset;
1716 bool first_file_header_format_reset;
1718 void config_changed (const char*);
1720 XMLNode& get_control_protocol_state ();
1722 void set_history_depth (uint32_t depth);
1723 void sync_order_keys ();
1725 static bool _disable_all_loaded_plugins;
1728 } // namespace ARDOUR
1730 #endif /* __ardour_session_h__ */