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.
21 #ifndef __ardour_session_h__
22 #define __ardour_session_h__
32 #include <boost/weak_ptr.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::shared_ptr<Route>,bool> RouteBooleanState;
111 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
112 typedef std::pair<boost::shared_ptr<Route>,MeterPoint> RouteMeterState;
113 typedef vector<RouteMeterState> GlobalRouteMeterState;
136 InputConfigurationChange,
140 /* only one of each of these events
141 can be queued at any one time
157 nframes_t action_frame;
158 nframes_t target_frame;
167 boost::shared_ptr<Region> region;
169 list<AudioRange> audio_range;
170 list<MusicRange> music_range;
172 Event(Type t, Action a, nframes_t when, nframes_t where, float spd, bool yn = false)
176 target_frame (where),
180 void set_ptr (void* p) {
184 bool before (const Event& other) const {
185 return action_frame < other.action_frame;
188 bool after (const Event& other) const {
189 return action_frame > other.action_frame;
192 static bool compare (const Event *e1, const Event *e2) {
193 return e1->before (*e2);
196 void *operator new (size_t ignored) {
197 return pool.alloc ();
200 void operator delete(void *ptr, size_t size) {
204 static const nframes_t Immediate = 0;
207 static MultiAllocSingleReleasePool pool;
210 /* creating from an XML file */
212 Session (AudioEngine&,
214 string snapshot_name,
215 string* mix_template = 0);
217 /* creating a new Session */
219 Session (AudioEngine&,
221 string snapshot_name,
222 AutoConnectOption input_auto_connect,
223 AutoConnectOption output_auto_connect,
224 uint32_t control_out_channels,
225 uint32_t master_out_channels,
226 uint32_t n_physical_in,
227 uint32_t n_physical_out,
228 nframes_t initial_length);
233 static int find_session (string str, string& path, string& snapshot, bool& isnew);
235 string path() const { return _path; }
236 string name() const { return _name; }
237 string snap_name() const { return _current_snapshot_name; }
238 string raid_path () const;
240 void set_snap_name ();
244 bool dirty() const { return _state_of_the_state & Dirty; }
245 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
246 sigc::signal<void> DirtyChanged;
248 std::string sound_dir (bool with_path = true) const;
249 std::string peak_dir () const;
250 std::string dead_sound_dir () const;
251 std::string automation_dir () const;
253 string peak_path_from_audio_path (string) const;
255 static string suffixed_search_path (std::string suffix, bool data);
256 static string control_protocol_path ();
257 static string template_path ();
258 static string template_dir ();
259 static void get_template_list (list<string>&);
261 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
262 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
264 void process (nframes_t nframes);
266 vector<Sample*>& get_passthru_buffers() { return _passthru_buffers; }
267 vector<Sample*>& get_silent_buffers (uint32_t howmany);
268 vector<Sample*>& get_send_buffers () { return _send_buffers; }
270 void add_diskstream (boost::shared_ptr<Diskstream>);
271 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
272 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
274 bool have_captured() const { return _have_captured; }
276 void refill_all_diskstream_buffers ();
277 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
279 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
280 uint32_t n_diskstreams() const;
282 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
283 typedef std::list<boost::shared_ptr<Route> > RouteList;
285 boost::shared_ptr<RouteList> get_routes() const {
286 return routes.reader ();
289 uint32_t nroutes() const { return routes.reader()->size(); }
290 uint32_t ntracks () const;
291 uint32_t nbusses () const;
293 struct RoutePublicOrderSorter {
294 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
297 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
298 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
299 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
301 boost::shared_ptr<Route> route_by_name (string);
302 boost::shared_ptr<Route> route_by_id (PBD::ID);
303 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
305 bool route_name_unique (string) const;
307 bool get_record_enabled() const {
308 return (record_status () >= Enabled);
311 RecordState record_status() const {
312 return (RecordState) g_atomic_int_get (&_record_status);
315 bool actively_recording () {
316 return record_status() == Recording;
319 bool record_enabling_legal () const;
320 void maybe_enable_record ();
321 void disable_record (bool rt_context, bool force = false);
322 void step_back_from_record ();
324 /* Proxy signal for region hidden changes */
326 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
328 /* Emitted when all i/o connections are complete */
330 sigc::signal<void> IOConnectionsComplete;
332 /* Record status signals */
334 sigc::signal<void> RecordStateChanged;
336 /* Transport mechanism signals */
338 sigc::signal<void> TransportStateChange; /* generic */
339 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
340 sigc::signal<void> DurationChanged;
341 sigc::signal<void> HaltOnXrun;
343 sigc::signal<void,RouteList&> RouteAdded;
345 void request_roll ();
346 void request_bounded_roll (nframes_t start, nframes_t end);
347 void request_stop (bool abort = false);
348 void request_locate (nframes_t frame, bool with_roll = false);
350 void request_play_loop (bool yn);
351 bool get_play_loop () const { return play_loop; }
353 nframes_t last_transport_start() const { return _last_roll_location; }
354 void goto_end () { request_locate (end_location->start(), false);}
355 void goto_start () { request_locate (start_location->start(), false); }
356 void set_session_start (nframes_t start) { start_location->set_start(start); }
357 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
358 void use_rf_shuttle_speed ();
359 void request_transport_speed (float speed);
360 void request_overwrite_buffer (Diskstream*);
361 void request_diskstream_speed (Diskstream&, float speed);
362 void request_input_change_handling ();
364 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
365 bool transport_locked () const;
369 int remove_region_from_region_list (boost::shared_ptr<Region>);
371 nframes_t get_maximum_extent () const;
372 nframes_t current_end_frame() const { return end_location->start(); }
373 nframes_t current_start_frame() const { return start_location->start(); }
374 nframes_t frame_rate() const { return _current_frame_rate; }
375 nframes_t frames_per_hour() const { return _frames_per_hour; }
377 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
378 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
382 Locations *locations() { return &_locations; }
384 sigc::signal<void,Location*> auto_loop_location_changed;
385 sigc::signal<void,Location*> auto_punch_location_changed;
386 sigc::signal<void> locations_modified;
388 void set_auto_punch_location (Location *);
389 void set_auto_loop_location (Location *);
391 void reset_input_monitor_state ();
393 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
394 void remove_event (nframes_t frame, Event::Type type);
395 void clear_events (Event::Type type);
397 nframes_t get_block_size() const { return current_block_size; }
398 nframes_t worst_output_latency () const { return _worst_output_latency; }
399 nframes_t worst_input_latency () const { return _worst_input_latency; }
400 nframes_t worst_track_latency () const { return _worst_track_latency; }
402 int save_state (string snapshot_name, bool pending = false);
403 int restore_state (string snapshot_name);
404 int save_template (string template_name);
405 int save_history (string snapshot_name = "");
406 int restore_history (string snapshot_name);
408 static int rename_template (string old_name, string new_name);
410 static int delete_template (string name);
412 sigc::signal<void,string> StateSaved;
413 sigc::signal<void> StateReady;
415 vector<string*>* possible_states() const;
416 static vector<string*>* possible_states(string path);
418 XMLNode& get_state();
419 int set_state(const XMLNode& node); // not idempotent
420 XMLNode& get_template();
422 void add_instant_xml (XMLNode&, const std::string& dir);
424 enum StateOfTheState {
429 InitialConnecting = 0x8,
434 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
436 RouteGroup* add_edit_group (string);
437 RouteGroup* add_mix_group (string);
439 void remove_edit_group (RouteGroup&);
440 void remove_mix_group (RouteGroup&);
442 RouteGroup *mix_group_by_name (string);
443 RouteGroup *edit_group_by_name (string);
445 sigc::signal<void,RouteGroup*> edit_group_added;
446 sigc::signal<void,RouteGroup*> mix_group_added;
447 sigc::signal<void> edit_group_removed;
448 sigc::signal<void> mix_group_removed;
450 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
451 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
456 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
457 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
462 /* fundamental operations. duh. */
464 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
465 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
467 void remove_route (boost::shared_ptr<Route>);
469 void resort_routes ();
470 void resort_routes_using (boost::shared_ptr<RouteList>);
472 AudioEngine &engine() { return _engine; };
479 nframes_t transport_frame () const {return _transport_frame; }
480 nframes_t audible_frame () const;
507 int set_smpte_type (float fps, bool drop_frames);
509 void sync_time_vars();
511 void bbt_time (nframes_t when, BBT_Time&);
512 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
513 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
514 void smpte_time (SMPTE::Time &);
515 void smpte_time (nframes_t when, SMPTE::Time&);
516 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
518 void smpte_duration (nframes_t, SMPTE::Time&) const;
519 void smpte_duration_string (char *, nframes_t) const;
521 void set_smpte_offset (nframes_t);
522 nframes_t smpte_offset () const { return _smpte_offset; }
523 void set_smpte_offset_negative (bool);
524 bool smpte_offset_negative () const { return _smpte_offset_negative; }
526 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
528 static sigc::signal<void> StartTimeChanged;
529 static sigc::signal<void> EndTimeChanged;
530 static sigc::signal<void> SMPTEOffsetChanged;
532 void request_slave_source (SlaveSource);
533 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
535 float transport_speed() const { return _transport_speed; }
536 bool transport_stopped() const { return _transport_speed == 0.0f; }
537 bool transport_rolling() const { return _transport_speed != 0.0f; }
539 int jack_slave_sync (nframes_t);
541 TempoMap& tempo_map() { return *_tempo_map; }
545 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionAdded;
546 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionRemoved;
548 int region_name (string& result, string base = string(""), bool newlevel = false) const;
549 string new_region_name (string);
550 string path_from_region_name (string name, string identifier);
552 boost::shared_ptr<AudioRegion> find_whole_file_parent (boost::shared_ptr<AudioRegion const>);
553 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
555 boost::shared_ptr<AudioRegion> XMLRegionFactory (const XMLNode&, bool full);
557 template<class T> void foreach_audio_region (T *obj, void (T::*func)(boost::shared_ptr<AudioRegion>));
559 /* source management */
561 struct import_status : public InterThreadInfo {
567 volatile bool freeze;
571 std::vector<boost::shared_ptr<AudioRegion> > new_regions;
575 int import_audiofile (import_status&);
576 bool sample_rate_convert (import_status&, string infile, string& outfile);
577 string build_tmp_convert_name (string file);
579 SlaveSource post_export_slave;
580 nframes_t post_export_position;
582 int start_audio_export (ARDOUR::AudioExportSpecification&);
583 int stop_audio_export (ARDOUR::AudioExportSpecification&);
585 void add_source (boost::shared_ptr<Source>);
586 void remove_source (boost::weak_ptr<Source>);
587 int cleanup_audio_file_source (boost::shared_ptr<AudioFileSource>);
589 struct cleanup_report {
590 vector<string> paths;
594 int cleanup_sources (cleanup_report&);
595 int cleanup_trash_sources (cleanup_report&);
597 int destroy_region (boost::shared_ptr<Region>);
598 int destroy_regions (std::list<boost::shared_ptr<Region> >);
600 int remove_last_capture ();
602 /* handlers should return -1 for "stop cleanup", 0 for
603 "yes, delete this playlist" and 1 for "no, don't delete
607 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
609 /* handlers should return !0 for use pending state, 0 for
613 static sigc::signal<int> AskAboutPendingState;
615 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
617 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
619 /* playlist management */
621 boost::shared_ptr<Playlist> playlist_by_name (string name);
622 void add_playlist (boost::shared_ptr<Playlist>);
623 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
624 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
626 uint32_t n_playlists() const;
628 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
629 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
631 /* named selections */
633 NamedSelection* named_selection_by_name (string name);
634 void add_named_selection (NamedSelection *);
635 void remove_named_selection (NamedSelection *);
637 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
638 sigc::signal<void> NamedSelectionAdded;
639 sigc::signal<void> NamedSelectionRemoved;
641 /* Curves and AutomationLists (TODO when they go away) */
642 void add_curve(Curve*);
643 void add_automation_list(AutomationList*);
647 float get_default_fade_length () const { return default_fade_msecs; }
648 float get_default_fade_steepness () const { return default_fade_steepness; }
649 void set_default_fade (float steepness, float msecs);
653 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
654 void audition_playlist ();
655 void audition_region (boost::shared_ptr<Region>);
656 void cancel_audition ();
657 bool is_auditioning () const;
659 sigc::signal<void,bool> AuditionActive;
661 /* flattening stuff */
663 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite, vector<boost::shared_ptr<AudioSource> >&,
664 InterThreadInfo& wot);
665 int freeze (InterThreadInfo&);
667 /* session-wide solo/mute/rec-enable */
669 bool soloing() const { return currently_soloing; }
671 void set_all_solo (bool);
672 void set_all_mute (bool);
674 sigc::signal<void,bool> SoloActive;
676 void record_disenable_all ();
677 void record_enable_all ();
679 /* control/master out */
681 boost::shared_ptr<IO> control_out() const { return _control_out; }
682 boost::shared_ptr<IO> master_out() const { return _master_out; }
684 /* insert/send management */
686 uint32_t n_port_inserts() const { return _port_inserts.size(); }
687 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
688 uint32_t n_sends() const { return _sends.size(); }
690 string next_send_name();
691 string next_insert_name();
693 /* s/w "RAID" management */
695 nframes_t available_capture_duration();
697 /* I/O Connections */
699 template<class T> void foreach_connection (T *obj, void (T::*func)(Connection *));
700 void add_connection (Connection *);
701 void remove_connection (Connection *);
702 Connection *connection_by_name (string) const;
704 sigc::signal<void,Connection *> ConnectionAdded;
705 sigc::signal<void,Connection *> ConnectionRemoved;
709 int set_mtc_port (string port_tag);
710 int set_mmc_port (string port_tag);
711 int set_midi_port (string port_tag);
712 MIDI::Port *mtc_port() const { return _mtc_port; }
713 MIDI::Port *mmc_port() const { return _mmc_port; }
714 MIDI::Port *midi_port() const { return _midi_port; }
716 sigc::signal<void> MTC_PortChanged;
717 sigc::signal<void> MMC_PortChanged;
718 sigc::signal<void> MIDI_PortChanged;
720 void set_trace_midi_input (bool, MIDI::Port* port = 0);
721 void set_trace_midi_output (bool, MIDI::Port* port = 0);
723 bool get_trace_midi_input(MIDI::Port *port = 0);
724 bool get_trace_midi_output(MIDI::Port *port = 0);
726 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
728 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
732 void start_scrub (nframes_t where);
734 void set_scrub_speed (float);
735 nframes_t scrub_buffer_size() const;
736 sigc::signal<void> ScrubReady;
738 /* History (for editors, mixers, UIs etc.) */
740 void undo (uint32_t n) {
744 void redo (uint32_t n) {
748 UndoHistory& history() { return _history; }
750 uint32_t undo_depth() const { return _history.undo_depth(); }
751 uint32_t redo_depth() const { return _history.redo_depth(); }
752 string next_undo() const { return _history.next_undo(); }
753 string next_redo() const { return _history.next_redo(); }
755 void begin_reversible_command (string cmd_name);
756 void commit_reversible_command (Command* cmd = 0);
758 void add_command (Command *const cmd) {
759 current_trans->add_command (cmd);
762 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
764 // these commands are implemented in libs/ardour/session_command.cc
765 Command *memento_command_factory(XMLNode *n);
766 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway *);
768 class GlobalSoloStateCommand : public Command
770 GlobalRouteBooleanState before, after;
774 GlobalSoloStateCommand(Session &, void *src);
777 XMLNode &get_state();
781 class GlobalMuteStateCommand : public Command
783 GlobalRouteBooleanState before, after;
787 GlobalMuteStateCommand(Session &, void *src);
790 XMLNode &get_state();
794 class GlobalRecordEnableStateCommand : public Command
796 GlobalRouteBooleanState before, after;
800 GlobalRecordEnableStateCommand(Session &, void *src);
803 XMLNode &get_state();
807 class GlobalMeteringStateCommand : public Command
809 GlobalRouteMeterState before, after;
813 GlobalMeteringStateCommand(Session &, void *src);
816 XMLNode &get_state();
822 boost::shared_ptr<IO> click_io() { return _click_io; }
826 struct TimeStretchRequest {
827 boost::shared_ptr<ARDOUR::AudioRegion> region;
828 float fraction; /* session: read ; GUI: write */
829 float progress; /* session: write ; GUI: read */
830 bool running; /* read/write */
831 bool quick_seek; /* GUI: write */
832 bool antialias; /* GUI: write */
834 TimeStretchRequest () {}
837 boost::shared_ptr<AudioRegion> tempoize_region (TimeStretchRequest&);
839 /* disk, buffer loads */
841 uint32_t playback_load ();
842 uint32_t capture_load ();
843 uint32_t playback_load_min ();
844 uint32_t capture_load_min ();
846 void reset_playback_load_min ();
847 void reset_capture_load_min ();
849 float read_data_rate () const;
850 float write_data_rate () const;
854 void set_audio_range (list<AudioRange>&);
855 void set_music_range (list<MusicRange>&);
857 void request_play_range (bool yn);
858 bool get_play_range () const { return _play_range; }
861 typedef vector<string> FavoriteDirs;
863 static int read_favorite_dirs (FavoriteDirs&);
865 static int write_favorite_dirs (FavoriteDirs&);
869 static const char* template_suffix() { return _template_suffix; }
870 static const char* statefile_suffix() { return _statefile_suffix; }
871 static const char* pending_suffix() { return _pending_suffix; }
873 /* buffers for gain and pan */
875 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
876 pan_t** pan_automation_buffer() const { return _pan_automation_buffer; }
878 /* buffers for conversion */
887 static long vst_callback (AEffect* effect,
894 typedef float (*compute_peak_t) (Sample *, nframes_t, float);
895 typedef void (*apply_gain_to_buffer_t) (Sample *, nframes_t, float);
896 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, nframes_t, float);
897 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, nframes_t);
899 static compute_peak_t compute_peak;
900 static apply_gain_to_buffer_t apply_gain_to_buffer;
901 static mix_buffers_with_gain_t mix_buffers_with_gain;
902 static mix_buffers_no_gain_t mix_buffers_no_gain;
904 static sigc::signal<void> SendFeedback;
908 PBD::Controllable* controllable_by_id (const PBD::ID&);
910 void add_controllable (PBD::Controllable*);
911 void remove_controllable (PBD::Controllable*);
914 friend class AudioEngine;
915 void set_block_size (nframes_t nframes);
916 void set_frame_rate (nframes_t nframes);
919 friend class Diskstream;
921 void wait_till_butler_finished();
925 void schedule_curve_reallocation ();
926 void update_latency_compensation (bool, bool);
929 int create (bool& new_session, string* mix_template, nframes_t initial_length);
931 nframes_t compute_initial_length ();
933 static const char* _template_suffix;
934 static const char* _statefile_suffix;
935 static const char* _pending_suffix;
938 PendingDeclickIn = 0x1,
939 PendingDeclickOut = 0x2,
940 StopPendingCapture = 0x4,
941 AutoReturning = 0x10,
942 PendingLocate = 0x20,
943 PendingSetLoop = 0x40
946 /* stuff used in process() should be close together to
950 typedef void (Session::*process_function_type)(nframes_t);
952 AudioEngine &_engine;
953 mutable gint processing_prohibited;
954 process_function_type process_function;
955 process_function_type last_process_function;
956 bool waiting_for_sync_offset;
957 nframes_t _base_frame_rate;
958 nframes_t _current_frame_rate; //this includes video pullup offset
959 int transport_sub_state;
960 mutable gint _record_status;
961 nframes_t _transport_frame;
962 Location* end_location;
963 Location* start_location;
965 volatile float _transport_speed;
966 volatile float _desired_transport_speed;
967 float _last_transport_speed;
968 nframes_t _last_slave_transport_frame;
969 nframes_t maximum_output_latency;
970 nframes_t last_stop_frame;
971 vector<Sample *> _passthru_buffers;
972 vector<Sample *> _silent_buffers;
973 vector<Sample *> _send_buffers;
974 nframes_t current_block_size;
975 nframes_t _worst_output_latency;
976 nframes_t _worst_input_latency;
977 nframes_t _worst_track_latency;
980 float _meter_falloff;
981 bool _end_location_is_free;
983 void set_worst_io_latencies ();
984 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
985 set_worst_io_latencies ();
988 void update_latency_compensation_proxy (void* ignored);
990 void ensure_passthru_buffers (uint32_t howmany);
992 void process_scrub (nframes_t);
993 void process_without_events (nframes_t);
994 void process_with_events (nframes_t);
995 void process_audition (nframes_t);
996 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1000 static const int delta_accumulator_size = 25;
1001 int delta_accumulator_cnt;
1002 long delta_accumulator[delta_accumulator_size];
1003 long average_slave_delta;
1005 bool have_first_delta_accumulator;
1013 SlaveState slave_state;
1014 nframes_t slave_wait_end;
1016 void reset_slave_state ();
1017 bool follow_slave (nframes_t, nframes_t);
1018 void set_slave_source (SlaveSource);
1021 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1023 void prepare_diskstreams ();
1024 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1025 int process_routes (nframes_t, nframes_t);
1026 int silent_process_routes (nframes_t, nframes_t);
1028 bool get_rec_monitors_input () {
1029 if (actively_recording()) {
1032 if (Config->get_auto_input()) {
1040 int get_transport_declick_required () {
1042 if (transport_sub_state & PendingDeclickIn) {
1043 transport_sub_state &= ~PendingDeclickIn;
1045 } else if (transport_sub_state & PendingDeclickOut) {
1052 bool maybe_stop (nframes_t limit) {
1053 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1060 bool maybe_sync_start (nframes_t&, nframes_t&);
1062 void check_declick_out ();
1064 MIDI::MachineControl* mmc;
1065 MIDI::Port* _mmc_port;
1066 MIDI::Port* _mtc_port;
1067 MIDI::Port* _midi_port;
1070 bool session_send_mmc;
1071 bool session_send_mtc;
1072 bool session_midi_feedback;
1075 nframes_t last_loopend;
1077 RingBuffer<Event*> pending_events;
1080 void when_engine_running ();
1081 void graph_reordered ();
1083 string _current_snapshot_name;
1085 XMLTree* state_tree;
1086 bool state_was_pending;
1087 StateOfTheState _state_of_the_state;
1090 int load_options (const XMLNode&);
1091 XMLNode& get_options () const;
1092 int load_state (string snapshot_name);
1093 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1095 nframes_t _last_roll_location;
1096 nframes_t _last_record_location;
1097 bool pending_locate_roll;
1098 nframes_t pending_locate_frame;
1100 bool pending_locate_flush;
1102 bool pending_auto_loop;
1104 Sample* butler_mixdown_buffer;
1105 float* butler_gain_buffer;
1106 pthread_t butler_thread;
1107 Glib::Mutex butler_request_lock;
1108 Glib::Cond butler_paused;
1109 bool butler_should_run;
1110 mutable gint butler_should_do_transport_work;
1111 int butler_request_pipe[2];
1113 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1115 struct ButlerRequest {
1124 enum PostTransportWork {
1125 PostTransportStop = 0x1,
1126 PostTransportDisableRecord = 0x2,
1127 PostTransportPosition = 0x8,
1128 PostTransportDidRecord = 0x20,
1129 PostTransportDuration = 0x40,
1130 PostTransportLocate = 0x80,
1131 PostTransportRoll = 0x200,
1132 PostTransportAbort = 0x800,
1133 PostTransportOverWrite = 0x1000,
1134 PostTransportSpeed = 0x2000,
1135 PostTransportAudition = 0x4000,
1136 PostTransportScrub = 0x8000,
1137 PostTransportReverse = 0x10000,
1138 PostTransportInputChange = 0x20000,
1139 PostTransportCurveRealloc = 0x40000
1142 static const PostTransportWork ProcessCannotProceedMask =
1143 PostTransportWork (PostTransportInputChange|
1145 PostTransportReverse|
1146 PostTransportCurveRealloc|
1148 PostTransportAudition|
1149 PostTransportLocate|
1152 PostTransportWork post_transport_work;
1154 void summon_butler ();
1155 void schedule_butler_transport_work ();
1156 int start_butler_thread ();
1157 void terminate_butler_thread ();
1158 static void *_butler_thread_work (void *arg);
1159 void* butler_thread_work ();
1161 uint32_t cumulative_rf_motion;
1164 void set_rf_speed (float speed);
1165 void reset_rf_scale (nframes_t frames_moved);
1167 Locations _locations;
1168 void locations_changed ();
1169 void locations_added (Location*);
1170 void handle_locations_changed (Locations::LocationList&);
1172 sigc::connection auto_punch_start_changed_connection;
1173 sigc::connection auto_punch_end_changed_connection;
1174 sigc::connection auto_punch_changed_connection;
1175 void auto_punch_start_changed (Location *);
1176 void auto_punch_end_changed (Location *);
1177 void auto_punch_changed (Location *);
1179 sigc::connection auto_loop_start_changed_connection;
1180 sigc::connection auto_loop_end_changed_connection;
1181 sigc::connection auto_loop_changed_connection;
1182 void auto_loop_changed (Location *);
1184 typedef list<Event *> Events;
1186 Events immediate_events;
1187 Events::iterator next_event;
1189 /* there can only ever be one of each of these */
1191 Event *auto_loop_event;
1192 Event *punch_out_event;
1193 Event *punch_in_event;
1197 void dump_events () const;
1198 void queue_event (Event *ev);
1199 void merge_event (Event*);
1200 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1201 bool _replace_event (Event*);
1202 bool _remove_event (Event *);
1203 void _clear_event_type (Event::Type);
1205 void first_stage_init (string path, string snapshot_name);
1206 int second_stage_init (bool new_tracks);
1207 void find_current_end ();
1208 void remove_empty_sounds ();
1210 void setup_midi_control ();
1211 int midi_read (MIDI::Port *);
1213 void enable_record ();
1215 void increment_transport_position (uint32_t val) {
1216 if (max_frames - val < _transport_frame) {
1217 _transport_frame = max_frames;
1219 _transport_frame += val;
1223 void decrement_transport_position (uint32_t val) {
1224 if (val < _transport_frame) {
1225 _transport_frame -= val;
1227 _transport_frame = 0;
1231 void post_transport_motion ();
1232 static void *session_loader_thread (void *arg);
1236 void set_next_event ();
1237 void process_event (Event *);
1239 /* MIDI Machine Control */
1241 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1242 void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1243 void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1245 void spp_start (MIDI::Parser&);
1246 void spp_continue (MIDI::Parser&);
1247 void spp_stop (MIDI::Parser&);
1249 void mmc_deferred_play (MIDI::MachineControl &);
1250 void mmc_stop (MIDI::MachineControl &);
1251 void mmc_step (MIDI::MachineControl &, int);
1252 void mmc_pause (MIDI::MachineControl &);
1253 void mmc_record_pause (MIDI::MachineControl &);
1254 void mmc_record_strobe (MIDI::MachineControl &);
1255 void mmc_record_exit (MIDI::MachineControl &);
1256 void mmc_track_record_status (MIDI::MachineControl &,
1257 uint32_t track, bool enabled);
1258 void mmc_fast_forward (MIDI::MachineControl &);
1259 void mmc_rewind (MIDI::MachineControl &);
1260 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1261 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1262 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1264 struct timeval last_mmc_step;
1267 typedef sigc::slot<bool> MidiTimeoutCallback;
1268 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1270 MidiTimeoutList midi_timeouts;
1271 bool mmc_step_timeout ();
1273 MIDI::byte mmc_buffer[32];
1274 MIDI::byte mtc_msg[16];
1275 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1276 MIDI::byte midi_msg[16];
1277 nframes_t outbound_mtc_smpte_frame;
1278 SMPTE::Time transmitting_smpte_time;
1279 int next_quarter_frame_to_send;
1281 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1282 nframes_t _frames_per_hour;
1283 nframes_t _smpte_frames_per_hour;
1284 nframes_t _smpte_offset;
1285 bool _smpte_offset_negative;
1287 /* cache the most-recently requested time conversions.
1288 this helps when we have multiple clocks showing the
1289 same time (e.g. the transport frame)
1292 bool last_smpte_valid;
1293 nframes_t last_smpte_when;
1294 SMPTE::Time last_smpte;
1296 int send_full_time_code ();
1297 int send_midi_time_code ();
1299 void send_full_time_code_in_another_thread ();
1300 void send_midi_time_code_in_another_thread ();
1301 void send_time_code_in_another_thread (bool full);
1302 void send_mmc_in_another_thread (MIDI::MachineControl::Command, nframes_t frame = 0);
1304 nframes_t adjust_apparent_position (nframes_t frames);
1306 void reset_record_status ();
1308 int no_roll (nframes_t nframes, nframes_t offset);
1310 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1311 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1313 struct MIDIRequest {
1326 MIDI::MachineControl::Command mmc_cmd;
1327 nframes_t locate_frame;
1329 // for SendMessage type
1332 MIDI::channel_t chan;
1334 MIDI::EventTwoBytes data;
1345 void *operator new(size_t ignored) {
1346 return pool.alloc ();
1349 void operator delete(void *ptr, size_t size) {
1354 static MultiAllocSingleReleasePool pool;
1357 Glib::Mutex midi_lock;
1358 pthread_t midi_thread;
1359 int midi_request_pipe[2];
1360 mutable gint butler_active;
1361 RingBuffer<MIDIRequest*> midi_requests;
1363 int start_midi_thread ();
1364 void terminate_midi_thread ();
1365 void poke_midi_thread ();
1366 static void *_midi_thread_work (void *arg);
1367 void midi_thread_work ();
1368 void change_midi_ports ();
1369 int use_config_midi_ports ();
1371 bool waiting_to_start;
1373 void set_play_loop (bool yn);
1374 void overwrite_some_buffers (Diskstream*);
1375 void flush_all_redirects ();
1376 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1377 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1378 void force_locate (nframes_t frame, bool with_roll = false);
1379 void set_diskstream_speed (Diskstream*, float speed);
1380 void set_transport_speed (float speed, bool abort = false);
1381 void stop_transport (bool abort = false);
1382 void start_transport ();
1383 void actually_start_transport ();
1384 void realtime_stop (bool abort);
1385 void non_realtime_start_scrub ();
1386 void non_realtime_set_speed ();
1387 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1388 void non_realtime_overwrite (int entry_request_count, bool& finished);
1389 void butler_transport_work ();
1390 void post_transport ();
1391 void engine_halted ();
1392 void xrun_recovery ();
1394 TempoMap *_tempo_map;
1395 void tempo_map_changed (Change);
1397 /* edit/mix groups */
1399 int load_route_groups (const XMLNode&, bool is_edit);
1400 int load_edit_groups (const XMLNode&);
1401 int load_mix_groups (const XMLNode&);
1404 list<RouteGroup *> edit_groups;
1405 list<RouteGroup *> mix_groups;
1409 SerializedRCUManager<DiskstreamList> diskstreams;
1411 uint32_t dstream_buffer_size;
1412 int load_diskstreams (const XMLNode&);
1416 SerializedRCUManager<RouteList> routes;
1418 void add_routes (RouteList&, bool save = true);
1419 uint32_t destructive_index;
1421 int load_routes (const XMLNode&);
1422 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1426 bool solo_update_disabled;
1427 bool currently_soloing;
1429 void route_mute_changed (void *src);
1430 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1431 void catch_up_on_solo ();
1432 void update_route_solo_state ();
1433 void modify_solo_mute (bool, bool);
1434 void strip_portname_for_solo (string& portname);
1436 /* REGION MANAGEMENT */
1438 mutable Glib::Mutex region_lock;
1439 typedef map<PBD::ID,boost::shared_ptr<AudioRegion> > AudioRegionList;
1440 AudioRegionList audio_regions;
1442 void add_region (boost::shared_ptr<Region>);
1443 void region_changed (Change, boost::weak_ptr<Region>);
1444 void remove_region (boost::weak_ptr<Region>);
1446 int load_regions (const XMLNode& node);
1450 mutable Glib::Mutex audio_source_lock;
1451 typedef std::map<PBD::ID,boost::shared_ptr<AudioSource> > AudioSourceList;
1453 AudioSourceList audio_sources;
1455 int load_sources (const XMLNode& node);
1456 XMLNode& get_sources_as_xml ();
1458 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1462 mutable Glib::Mutex playlist_lock;
1463 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1464 PlaylistList playlists;
1465 PlaylistList unused_playlists;
1467 int load_playlists (const XMLNode&);
1468 int load_unused_playlists (const XMLNode&);
1469 void remove_playlist (boost::weak_ptr<Playlist>);
1470 void track_playlist (bool, boost::weak_ptr<Playlist>);
1472 boost::shared_ptr<Playlist> playlist_factory (string name);
1473 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1475 void playlist_length_changed ();
1476 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1478 /* NAMED SELECTIONS */
1480 mutable Glib::Mutex named_selection_lock;
1481 typedef set<NamedSelection *> NamedSelectionList;
1482 NamedSelectionList named_selections;
1484 int load_named_selections (const XMLNode&);
1486 NamedSelection *named_selection_factory (string name);
1487 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1489 /* CURVES and AUTOMATION LISTS */
1490 std::map<PBD::ID, Curve*> curves;
1491 std::map<PBD::ID, AutomationList*> automation_lists;
1493 /* DEFAULT FADE CURVES */
1495 float default_fade_steepness;
1496 float default_fade_msecs;
1500 boost::shared_ptr<Auditioner> auditioner;
1501 void set_audition (boost::shared_ptr<Region>);
1502 void non_realtime_set_audition ();
1503 boost::shared_ptr<Region> pending_audition_region;
1509 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1511 /* INSERT AND SEND MANAGEMENT */
1513 list<PortInsert *> _port_inserts;
1514 list<PluginInsert *> _plugin_inserts;
1515 list<Send *> _sends;
1517 uint32_t insert_cnt;
1519 void add_redirect (Redirect *);
1520 void remove_redirect (Redirect *);
1524 struct space_and_path {
1525 uint32_t blocks; /* 4kB blocks */
1533 struct space_and_path_ascending_cmp {
1534 bool operator() (space_and_path a, space_and_path b) {
1535 return a.blocks > b.blocks;
1539 void setup_raid_path (string path);
1541 vector<space_and_path> session_dirs;
1542 vector<space_and_path>::iterator last_rr_session_dir;
1543 uint32_t _total_free_4k_blocks;
1544 Glib::Mutex space_lock;
1546 static const char* old_sound_dir_name;
1547 static const char* sound_dir_name;
1548 static const char* dead_sound_dir_name;
1549 static const char* interchange_dir_name;
1550 static const char* peak_dir_name;
1552 string discover_best_sound_dir (bool destructive = false);
1553 int ensure_sound_dir (string, string&);
1554 void refresh_disk_space ();
1556 mutable gint _playback_load;
1557 mutable gint _capture_load;
1558 mutable gint _playback_load_min;
1559 mutable gint _capture_load_min;
1561 /* I/O Connections */
1563 typedef list<Connection *> ConnectionList;
1564 mutable Glib::Mutex connection_lock;
1565 ConnectionList _connections;
1566 int load_connections (const XMLNode&);
1568 void reverse_diskstream_buffers ();
1570 UndoHistory _history;
1571 UndoTransaction* current_trans;
1573 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1574 GlobalRouteMeterState get_global_route_metering ();
1576 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1577 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1579 void set_global_mute (GlobalRouteBooleanState s, void *src);
1580 void set_global_solo (GlobalRouteBooleanState s, void *src);
1581 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1583 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1584 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1585 void record_enable_change_all (bool yn);
1587 XMLNode& state(bool);
1597 Click (nframes_t s, nframes_t d, const Sample *b)
1598 : start (s), duration (d), data (b) { offset = 0; }
1600 void *operator new(size_t ignored) {
1601 return pool.alloc ();
1604 void operator delete(void *ptr, size_t size) {
1612 typedef list<Click*> Clicks;
1616 boost::shared_ptr<IO> _click_io;
1618 Sample* click_emphasis_data;
1619 nframes_t click_length;
1620 nframes_t click_emphasis_length;
1621 mutable Glib::RWLock click_lock;
1623 static const Sample default_click[];
1624 static const nframes_t default_click_length;
1625 static const Sample default_click_emphasis[];
1626 static const nframes_t default_click_emphasis_length;
1629 void setup_click_sounds (int which);
1630 void clear_clicks ();
1631 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1633 vector<Route*> master_outs;
1635 /* range playback */
1637 list<AudioRange> current_audio_range;
1639 void set_play_range (bool yn);
1640 void setup_auto_play ();
1645 boost::shared_ptr<IO> _master_out;
1646 boost::shared_ptr<IO> _control_out;
1648 gain_t* _gain_automation_buffer;
1649 pan_t** _pan_automation_buffer;
1650 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1651 uint32_t _npan_buffers;
1655 long _vst_callback (VSTPlugin*,
1662 /* number of hardware audio ports we're using,
1663 based on max (requested,available)
1666 uint32_t n_physical_outputs;
1667 uint32_t n_physical_inputs;
1669 void remove_pending_capture_state ();
1671 int find_all_sources (std::string path, std::set<std::string>& result);
1672 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1674 LayerModel layer_model;
1675 CrossfadeModel xfade_model;
1677 typedef std::set<PBD::Controllable*> Controllables;
1678 Glib::Mutex controllables_lock;
1679 Controllables controllables;
1681 void reset_native_file_format();
1682 bool first_file_data_format_reset;
1683 bool first_file_header_format_reset;
1685 void config_changed (const char*);
1687 void add_control_protocol (const ControlProtocolInfo* const, XMLNode*);
1688 XMLNode& get_control_protocol_state ();
1692 } // namespace ARDOUR
1694 #endif /* __ardour_session_h__ */