2 Copyright (C) 2000 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_session_h__
21 #define __ardour_session_h__
30 #include <boost/weak_ptr.hpp>
31 #include <boost/dynamic_bitset.hpp>
37 #include <glibmm/thread.h>
39 #include <pbd/error.h>
43 #include <pbd/statefuldestructible.h>
45 #include <midi++/types.h>
46 #include <midi++/mmc.h>
48 #include <pbd/stateful.h>
49 #include <pbd/destructible.h>
51 #include <ardour/ardour.h>
52 #include <ardour/configuration.h>
53 #include <ardour/location.h>
54 #include <ardour/gain.h>
55 #include <ardour/io.h>
57 #include <ardour/smpte.h>
84 class AudioDiskstream;
86 class AudioFileSource;
103 class ControlProtocolInfo;
109 struct AudioExportSpecification;
117 class Session : public PBD::StatefulDestructible
120 typedef std::pair<boost::weak_ptr<Route>,bool> RouteBooleanState;
121 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
122 typedef std::pair<boost::weak_ptr<Route>,MeterPoint> RouteMeterState;
123 typedef vector<RouteMeterState> GlobalRouteMeterState;
146 InputConfigurationChange,
150 /* only one of each of these events
151 can be queued at any one time
167 nframes_t action_frame;
168 nframes_t target_frame;
178 boost::shared_ptr<Region> region;
180 list<AudioRange> audio_range;
181 list<MusicRange> music_range;
183 Event(Type t, Action a, nframes_t when, nframes_t where, float spd, bool yn = false)
187 target_frame (where),
191 void set_ptr (void* p) {
195 bool before (const Event& other) const {
196 return action_frame < other.action_frame;
199 bool after (const Event& other) const {
200 return action_frame > other.action_frame;
203 static bool compare (const Event *e1, const Event *e2) {
204 return e1->before (*e2);
207 void *operator new (size_t ignored) {
208 return pool.alloc ();
211 void operator delete(void *ptr, size_t size) {
215 static const nframes_t Immediate = 0;
218 static MultiAllocSingleReleasePool pool;
221 /* creating from an XML file */
223 Session (AudioEngine&,
225 string snapshot_name,
226 string* mix_template = 0);
228 /* creating a new Session */
230 Session (AudioEngine&,
232 string snapshot_name,
233 AutoConnectOption input_auto_connect,
234 AutoConnectOption output_auto_connect,
235 uint32_t control_out_channels,
236 uint32_t master_out_channels,
237 uint32_t n_physical_in,
238 uint32_t n_physical_out,
239 nframes_t initial_length);
244 static int find_session (string str, string& path, string& snapshot, bool& isnew);
246 string path() const { return _path; }
247 string name() const { return _name; }
248 string snap_name() const { return _current_snapshot_name; }
249 string raid_path () const;
250 string export_dir () 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 std::string sound_dir (bool with_path = true) const;
262 std::string peak_dir () const;
263 std::string dead_sound_dir () const;
264 std::string automation_dir () const;
266 static string suffixed_search_path (std::string suffix, bool data);
267 static string control_protocol_path ();
268 static string template_path ();
269 static string template_dir ();
270 static void get_template_list (list<string>&);
272 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
273 static string change_midi_path_by_name (string oldpath, string oldname, string newname, bool destructive);
275 string peak_path_from_audio_path (string) const;
276 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
277 string midi_path_from_name (string);
279 void process (nframes_t nframes);
281 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
282 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
283 BufferSet& get_send_buffers (ChanCount count = ChanCount::ZERO);
285 void add_diskstream (boost::shared_ptr<Diskstream>);
286 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
287 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
289 bool have_captured() const { return _have_captured; }
291 void refill_all_diskstream_buffers ();
292 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
294 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
295 uint32_t n_diskstreams() const;
297 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
298 typedef std::list<boost::shared_ptr<Route> > RouteList;
300 boost::shared_ptr<RouteList> get_routes() const {
301 return routes.reader ();
304 uint32_t nroutes() const { return routes.reader()->size(); }
305 uint32_t ntracks () const;
306 uint32_t nbusses () const;
308 struct RoutePublicOrderSorter {
309 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
312 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
313 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
314 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
316 boost::shared_ptr<Route> route_by_name (string);
317 boost::shared_ptr<Route> route_by_id (PBD::ID);
318 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
320 bool route_name_unique (string) const;
322 bool get_record_enabled() const {
323 return (record_status () >= Enabled);
326 RecordState record_status() const {
327 return (RecordState) g_atomic_int_get (&_record_status);
330 bool actively_recording () {
331 return record_status() == Recording;
334 bool record_enabling_legal () const;
335 void maybe_enable_record ();
336 void disable_record (bool rt_context, bool force = false);
337 void step_back_from_record ();
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> HaltOnXrun;
358 sigc::signal<void,RouteList&> RouteAdded;
360 void request_roll ();
361 void request_bounded_roll (nframes_t start, nframes_t end);
362 void request_stop (bool abort = false);
363 void request_locate (nframes_t frame, bool with_roll = false);
365 void request_play_loop (bool yn);
366 bool get_play_loop () const { return play_loop; }
368 nframes_t last_transport_start() const { return _last_roll_location; }
369 void goto_end () { request_locate (end_location->start(), false);}
370 void goto_start () { request_locate (start_location->start(), false); }
371 void set_session_start (nframes_t start) { start_location->set_start(start); }
372 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
373 void use_rf_shuttle_speed ();
374 void allow_auto_play (bool yn);
375 void request_transport_speed (float speed);
376 void request_overwrite_buffer (Diskstream*);
377 void request_diskstream_speed (Diskstream&, float speed);
378 void request_input_change_handling ();
380 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
381 bool transport_locked () const;
384 //int wipe_diskstream (AudioDiskstream *);
386 int remove_region_from_region_list (boost::shared_ptr<Region>);
388 nframes_t get_maximum_extent () const;
389 nframes_t current_end_frame() const { return end_location->start(); }
390 nframes_t current_start_frame() const { return start_location->start(); }
391 nframes_t frame_rate() const { return _current_frame_rate; }
392 nframes_t frames_per_hour() const { return _frames_per_hour; }
394 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
395 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
397 float smpte_frames_per_second() const;
398 bool smpte_drop_frames() const;
402 Locations *locations() { return &_locations; }
404 sigc::signal<void,Location*> auto_loop_location_changed;
405 sigc::signal<void,Location*> auto_punch_location_changed;
406 sigc::signal<void> locations_modified;
408 void set_auto_punch_location (Location *);
409 void set_auto_loop_location (Location *);
410 int location_name(string& result, string base = string(""));
412 void reset_input_monitor_state ();
414 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
415 void remove_event (nframes_t frame, Event::Type type);
416 void clear_events (Event::Type type);
418 nframes_t get_block_size() const { return current_block_size; }
419 nframes_t worst_output_latency () const { return _worst_output_latency; }
420 nframes_t worst_input_latency () const { return _worst_input_latency; }
421 nframes_t worst_track_latency () const { return _worst_track_latency; }
423 int save_state (string snapshot_name, bool pending = false);
424 int restore_state (string snapshot_name);
425 int save_template (string template_name);
426 int save_history (string snapshot_name = "");
427 int restore_history (string snapshot_name);
428 void remove_state (string snapshot_name);
429 void rename_state (string old_name, string new_name);
431 static int rename_template (string old_name, string new_name);
433 static int delete_template (string name);
435 sigc::signal<void,string> StateSaved;
436 sigc::signal<void> StateReady;
438 vector<string*>* possible_states() const;
439 static vector<string*>* possible_states(string path);
441 XMLNode& get_state();
442 int set_state(const XMLNode& node); // not idempotent
443 XMLNode& get_template();
445 void add_instant_xml (XMLNode&, const std::string& dir);
447 enum StateOfTheState {
452 InitialConnecting = 0x8,
457 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
459 RouteGroup* add_edit_group (string);
460 RouteGroup* add_mix_group (string);
462 void remove_edit_group (RouteGroup&);
463 void remove_mix_group (RouteGroup&);
465 RouteGroup *mix_group_by_name (string);
466 RouteGroup *edit_group_by_name (string);
468 sigc::signal<void,RouteGroup*> edit_group_added;
469 sigc::signal<void,RouteGroup*> mix_group_added;
470 sigc::signal<void> edit_group_removed;
471 sigc::signal<void> mix_group_removed;
473 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
474 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
479 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
480 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
485 /* fundamental operations. duh. */
487 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
488 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
490 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (TrackMode mode = Normal, uint32_t how_many = 1);
491 //boost::shared_ptr<Route> new_midi_route (uint32_t how_many = 1);
493 void remove_route (boost::shared_ptr<Route>);
494 void resort_routes ();
495 void resort_routes_using (boost::shared_ptr<RouteList>);
497 void set_remote_control_ids();
499 AudioEngine &engine() { return _engine; };
506 nframes_t transport_frame () const {return _transport_frame; }
507 nframes_t audible_frame () const;
521 int set_smpte_format (SmpteFormat);
522 void sync_time_vars();
524 void bbt_time (nframes_t when, BBT_Time&);
525 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
526 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
527 void smpte_time (SMPTE::Time &);
528 void smpte_time (nframes_t when, SMPTE::Time&);
529 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
531 void smpte_duration (nframes_t, SMPTE::Time&) const;
532 void smpte_duration_string (char *, nframes_t) const;
534 void set_smpte_offset (nframes_t);
535 nframes_t smpte_offset () const { return _smpte_offset; }
536 void set_smpte_offset_negative (bool);
537 bool smpte_offset_negative () const { return _smpte_offset_negative; }
539 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
541 static sigc::signal<void> StartTimeChanged;
542 static sigc::signal<void> EndTimeChanged;
543 static sigc::signal<void> SMPTEOffsetChanged;
545 void request_slave_source (SlaveSource);
546 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
548 float transport_speed() const { return _transport_speed; }
549 bool transport_stopped() const { return _transport_speed == 0.0f; }
550 bool transport_rolling() const { return _transport_speed != 0.0f; }
552 int jack_slave_sync (nframes_t);
554 TempoMap& tempo_map() { return *_tempo_map; }
558 sigc::signal<void,boost::shared_ptr<Region> > RegionAdded;
559 sigc::signal<void,boost::shared_ptr<Region> > RegionRemoved;
561 int region_name (string& result, string base = string(""), bool newlevel = false) const;
562 string new_region_name (string);
563 string path_from_region_name (string name, string identifier);
565 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>);
567 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
569 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
570 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
571 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
573 template<class T> void foreach_region (T *obj, void (T::*func)(boost::shared_ptr<Region>));
575 /* source management */
577 struct import_status : public InterThreadInfo {
583 volatile bool freeze;
584 std::vector<Glib::ustring> paths;
587 std::vector<boost::shared_ptr<Region> > new_regions;
590 int import_audiofile (import_status&);
591 bool sample_rate_convert (import_status&, string infile, string& outfile);
592 string build_tmp_convert_name (string file);
594 SlaveSource post_export_slave;
595 nframes_t post_export_position;
597 int start_audio_export (ARDOUR::AudioExportSpecification&);
598 int stop_audio_export (ARDOUR::AudioExportSpecification&);
599 void finalize_audio_export ();
601 void add_source (boost::shared_ptr<Source>);
602 void remove_source (boost::weak_ptr<Source>);
604 struct cleanup_report {
605 vector<string> paths;
609 int cleanup_sources (cleanup_report&);
610 int cleanup_trash_sources (cleanup_report&);
612 int destroy_region (boost::shared_ptr<Region>);
613 int destroy_regions (std::list<boost::shared_ptr<Region> >);
615 int remove_last_capture ();
617 /* handlers should return -1 for "stop cleanup", 0 for
618 "yes, delete this playlist" and 1 for "no, don't delete
622 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
624 /* handlers should return !0 for use pending state, 0 for
628 static sigc::signal<int> AskAboutPendingState;
630 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
632 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
634 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
635 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
637 /* playlist management */
639 boost::shared_ptr<Playlist> playlist_by_name (string name);
640 void add_playlist (boost::shared_ptr<Playlist>);
641 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
642 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
644 uint32_t n_playlists() const;
646 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
647 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
649 /* named selections */
651 NamedSelection* named_selection_by_name (string name);
652 void add_named_selection (NamedSelection *);
653 void remove_named_selection (NamedSelection *);
655 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
656 sigc::signal<void> NamedSelectionAdded;
657 sigc::signal<void> NamedSelectionRemoved;
659 /* Curves and AutomationLists (TODO when they go away) */
660 void add_curve(Curve*);
661 void add_automation_list(AutomationList*);
665 float get_default_fade_length () const { return default_fade_msecs; }
666 float get_default_fade_steepness () const { return default_fade_steepness; }
667 void set_default_fade (float steepness, float msecs);
671 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
672 void audition_playlist ();
673 void audition_region (boost::shared_ptr<Region>);
674 void cancel_audition ();
675 bool is_auditioning () const;
677 sigc::signal<void,bool> AuditionActive;
679 /* flattening stuff */
681 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite, vector<boost::shared_ptr<Source> >&,
682 InterThreadInfo& wot);
683 int freeze (InterThreadInfo&);
685 /* session-wide solo/mute/rec-enable */
687 bool soloing() const { return currently_soloing; }
689 void set_all_solo (bool);
690 void set_all_mute (bool);
692 sigc::signal<void,bool> SoloActive;
693 sigc::signal<void> SoloChanged;
695 void record_disenable_all ();
696 void record_enable_all ();
698 /* control/master out */
700 boost::shared_ptr<IO> control_out() const { return _control_out; }
701 boost::shared_ptr<IO> master_out() const { return _master_out; }
703 /* insert/send management */
705 uint32_t n_port_inserts() const { return _port_inserts.size(); }
706 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
707 uint32_t n_sends() const { return _sends.size(); }
709 uint32_t next_send_id();
710 uint32_t next_insert_id();
711 void mark_send_id (uint32_t);
712 void mark_insert_id (uint32_t);
714 /* s/w "RAID" management */
716 nframes_t available_capture_duration();
718 /* I/O Connections */
720 template<class T> void foreach_connection (T *obj, void (T::*func)(Connection *));
721 void add_connection (Connection *);
722 void remove_connection (Connection *);
723 Connection *connection_by_name (string) const;
725 sigc::signal<void,Connection *> ConnectionAdded;
726 sigc::signal<void,Connection *> ConnectionRemoved;
730 int set_mtc_port (string port_tag);
731 int set_mmc_port (string port_tag);
732 int set_midi_port (string port_tag);
733 MIDI::Port *mtc_port() const { return _mtc_port; }
734 MIDI::Port *mmc_port() const { return _mmc_port; }
735 MIDI::Port *midi_port() const { return _midi_port; }
737 sigc::signal<void> MTC_PortChanged;
738 sigc::signal<void> MMC_PortChanged;
739 sigc::signal<void> MIDI_PortChanged;
741 void set_trace_midi_input (bool, MIDI::Port* port = 0);
742 void set_trace_midi_output (bool, MIDI::Port* port = 0);
744 bool get_trace_midi_input(MIDI::Port *port = 0);
745 bool get_trace_midi_output(MIDI::Port *port = 0);
747 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
749 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
751 void set_mmc_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; }
865 struct TimeStretchRequest {
866 boost::shared_ptr<ARDOUR::AudioRegion> region;
867 float fraction; /* session: read ; GUI: write */
868 float progress; /* session: write ; GUI: read */
869 bool running; /* read/write */
870 bool quick_seek; /* GUI: write */
871 bool antialias; /* GUI: write */
873 TimeStretchRequest () {}
876 boost::shared_ptr<AudioRegion> tempoize_region (TimeStretchRequest&);
878 /* disk, buffer loads */
880 uint32_t playback_load ();
881 uint32_t capture_load ();
882 uint32_t playback_load_min ();
883 uint32_t capture_load_min ();
885 void reset_playback_load_min ();
886 void reset_capture_load_min ();
888 float read_data_rate () const;
889 float write_data_rate () const;
893 void set_audio_range (list<AudioRange>&);
894 void set_music_range (list<MusicRange>&);
896 void request_play_range (bool yn);
897 bool get_play_range () const { return _play_range; }
900 typedef vector<string> FavoriteDirs;
902 static int read_favorite_dirs (FavoriteDirs&);
904 static int write_favorite_dirs (FavoriteDirs&);
908 static const char* template_suffix() { return _template_suffix; }
909 static const char* statefile_suffix() { return _statefile_suffix; }
910 static const char* pending_suffix() { return _pending_suffix; }
912 /* buffers for gain and pan */
914 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
915 pan_t** pan_automation_buffer () const { return _pan_automation_buffer; }
917 /* buffers for conversion */
926 static long vst_callback (AEffect* effect,
933 typedef float (*compute_peak_t) (Sample *, nframes_t, float);
934 typedef void (*find_peaks_t) (Sample *, nframes_t, float *, float*);
935 typedef void (*apply_gain_to_buffer_t) (Sample *, nframes_t, float);
936 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, nframes_t, float);
937 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, nframes_t);
939 static compute_peak_t compute_peak;
940 static find_peaks_t find_peaks;
941 static apply_gain_to_buffer_t apply_gain_to_buffer;
942 static mix_buffers_with_gain_t mix_buffers_with_gain;
943 static mix_buffers_no_gain_t mix_buffers_no_gain;
945 static sigc::signal<void> SendFeedback;
949 PBD::Controllable* controllable_by_id (const PBD::ID&);
951 void add_controllable (PBD::Controllable*);
952 void remove_controllable (PBD::Controllable*);
955 friend class AudioEngine;
956 void set_block_size (nframes_t nframes);
957 void set_frame_rate (nframes_t nframes);
960 friend class Diskstream;
962 void wait_till_butler_finished();
966 void schedule_curve_reallocation ();
967 void update_latency_compensation (bool, bool);
970 int create (bool& new_session, string* mix_template, nframes_t initial_length);
973 nframes_t compute_initial_length ();
975 static const char* _template_suffix;
976 static const char* _statefile_suffix;
977 static const char* _pending_suffix;
980 PendingDeclickIn = 0x1,
981 PendingDeclickOut = 0x2,
982 StopPendingCapture = 0x4,
983 AutoReturning = 0x10,
984 PendingLocate = 0x20,
985 PendingSetLoop = 0x40
988 /* stuff used in process() should be close together to
992 typedef void (Session::*process_function_type)(nframes_t);
994 AudioEngine &_engine;
995 mutable gint processing_prohibited;
996 process_function_type process_function;
997 process_function_type last_process_function;
998 bool waiting_for_sync_offset;
999 nframes_t _base_frame_rate;
1000 nframes_t _current_frame_rate; //this includes video pullup offset
1001 int transport_sub_state;
1002 mutable gint _record_status;
1003 nframes_t _transport_frame;
1004 Location* end_location;
1005 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 BufferSet* _scratch_buffers;
1015 BufferSet* _silent_buffers;
1016 BufferSet* _send_buffers;
1017 nframes_t current_block_size;
1018 nframes_t _worst_output_latency;
1019 nframes_t _worst_input_latency;
1020 nframes_t _worst_track_latency;
1021 bool _have_captured;
1023 float _meter_falloff;
1024 bool _end_location_is_free;
1026 void set_worst_io_latencies ();
1027 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1028 set_worst_io_latencies ();
1031 void update_latency_compensation_proxy (void* ignored);
1033 void ensure_buffers (ChanCount howmany);
1035 void process_scrub (nframes_t);
1036 void process_without_events (nframes_t);
1037 void process_with_events (nframes_t);
1038 void process_audition (nframes_t);
1039 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1041 /* slave tracking */
1043 static const int delta_accumulator_size = 25;
1044 int delta_accumulator_cnt;
1045 long delta_accumulator[delta_accumulator_size];
1046 long average_slave_delta;
1048 bool have_first_delta_accumulator;
1056 SlaveState slave_state;
1057 nframes_t slave_wait_end;
1059 void reset_slave_state ();
1060 bool follow_slave (nframes_t, nframes_t);
1061 void set_slave_source (SlaveSource);
1064 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1066 void prepare_diskstreams ();
1067 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1068 int process_routes (nframes_t, nframes_t);
1069 int silent_process_routes (nframes_t, nframes_t);
1071 bool get_rec_monitors_input () {
1072 if (actively_recording()) {
1075 if (Config->get_auto_input()) {
1083 int get_transport_declick_required () {
1085 if (transport_sub_state & PendingDeclickIn) {
1086 transport_sub_state &= ~PendingDeclickIn;
1088 } else if (transport_sub_state & PendingDeclickOut) {
1095 bool maybe_stop (nframes_t limit) {
1096 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1103 bool maybe_sync_start (nframes_t&, nframes_t&);
1105 void check_declick_out ();
1107 MIDI::MachineControl* mmc;
1108 MIDI::Port* _mmc_port;
1109 MIDI::Port* _mtc_port;
1110 MIDI::Port* _midi_port;
1113 bool session_send_mmc;
1114 bool session_send_mtc;
1115 bool session_midi_feedback;
1118 nframes_t last_loopend;
1120 RingBuffer<Event*> pending_events;
1123 void when_engine_running ();
1124 void graph_reordered ();
1126 string _current_snapshot_name;
1128 XMLTree* state_tree;
1129 bool state_was_pending;
1130 StateOfTheState _state_of_the_state;
1133 int load_options (const XMLNode&);
1134 XMLNode& get_options () const;
1135 int load_state (string snapshot_name);
1136 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1138 nframes_t _last_roll_location;
1139 nframes_t _last_record_location;
1140 bool pending_locate_roll;
1141 nframes_t pending_locate_frame;
1143 bool pending_locate_flush;
1145 bool pending_auto_loop;
1147 Sample* butler_mixdown_buffer;
1148 float* butler_gain_buffer;
1149 pthread_t butler_thread;
1150 Glib::Mutex butler_request_lock;
1151 Glib::Cond butler_paused;
1152 bool butler_should_run;
1153 mutable gint butler_should_do_transport_work;
1154 int butler_request_pipe[2];
1156 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1158 struct ButlerRequest {
1167 enum PostTransportWork {
1168 PostTransportStop = 0x1,
1169 PostTransportDisableRecord = 0x2,
1170 PostTransportPosition = 0x8,
1171 PostTransportDidRecord = 0x20,
1172 PostTransportDuration = 0x40,
1173 PostTransportLocate = 0x80,
1174 PostTransportRoll = 0x200,
1175 PostTransportAbort = 0x800,
1176 PostTransportOverWrite = 0x1000,
1177 PostTransportSpeed = 0x2000,
1178 PostTransportAudition = 0x4000,
1179 PostTransportScrub = 0x8000,
1180 PostTransportReverse = 0x10000,
1181 PostTransportInputChange = 0x20000,
1182 PostTransportCurveRealloc = 0x40000
1185 static const PostTransportWork ProcessCannotProceedMask =
1186 PostTransportWork (PostTransportInputChange|
1188 PostTransportReverse|
1189 PostTransportCurveRealloc|
1191 PostTransportAudition|
1192 PostTransportLocate|
1195 PostTransportWork post_transport_work;
1197 void summon_butler ();
1198 void schedule_butler_transport_work ();
1199 int start_butler_thread ();
1200 void terminate_butler_thread ();
1201 static void *_butler_thread_work (void *arg);
1202 void* butler_thread_work ();
1204 uint32_t cumulative_rf_motion;
1207 void set_rf_speed (float speed);
1208 void reset_rf_scale (nframes_t frames_moved);
1210 Locations _locations;
1211 void locations_changed ();
1212 void locations_added (Location*);
1213 void handle_locations_changed (Locations::LocationList&);
1215 sigc::connection auto_punch_start_changed_connection;
1216 sigc::connection auto_punch_end_changed_connection;
1217 sigc::connection auto_punch_changed_connection;
1218 void auto_punch_start_changed (Location *);
1219 void auto_punch_end_changed (Location *);
1220 void auto_punch_changed (Location *);
1222 sigc::connection auto_loop_start_changed_connection;
1223 sigc::connection auto_loop_end_changed_connection;
1224 sigc::connection auto_loop_changed_connection;
1225 void auto_loop_changed (Location *);
1227 typedef list<Event *> Events;
1229 Events immediate_events;
1230 Events::iterator next_event;
1232 /* there can only ever be one of each of these */
1234 Event *auto_loop_event;
1235 Event *punch_out_event;
1236 Event *punch_in_event;
1240 void dump_events () const;
1241 void queue_event (Event *ev);
1242 void merge_event (Event*);
1243 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1244 bool _replace_event (Event*);
1245 bool _remove_event (Event *);
1246 void _clear_event_type (Event::Type);
1248 void first_stage_init (string path, string snapshot_name);
1249 int second_stage_init (bool new_tracks);
1250 void find_current_end ();
1251 void remove_empty_sounds ();
1253 void setup_midi_control ();
1254 //int midi_read (MIDI::Port *);
1256 void enable_record ();
1258 void increment_transport_position (uint32_t val) {
1259 if (max_frames - val < _transport_frame) {
1260 _transport_frame = max_frames;
1262 _transport_frame += val;
1266 void decrement_transport_position (uint32_t val) {
1267 if (val < _transport_frame) {
1268 _transport_frame -= val;
1270 _transport_frame = 0;
1274 void post_transport_motion ();
1275 static void *session_loader_thread (void *arg);
1279 void set_next_event ();
1280 void process_event (Event *ev);
1282 /* MIDI Machine Control */
1284 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1285 //void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1286 //void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1288 void spp_start (MIDI::Parser&);
1289 void spp_continue (MIDI::Parser&);
1290 void spp_stop (MIDI::Parser&);
1292 void mmc_deferred_play (MIDI::MachineControl &);
1293 void mmc_stop (MIDI::MachineControl &);
1294 void mmc_step (MIDI::MachineControl &, int);
1295 void mmc_pause (MIDI::MachineControl &);
1296 void mmc_record_pause (MIDI::MachineControl &);
1297 void mmc_record_strobe (MIDI::MachineControl &);
1298 void mmc_record_exit (MIDI::MachineControl &);
1299 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1300 void mmc_fast_forward (MIDI::MachineControl &);
1301 void mmc_rewind (MIDI::MachineControl &);
1302 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1303 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1304 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1306 struct timeval last_mmc_step;
1309 typedef sigc::slot<bool> MidiTimeoutCallback;
1310 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1312 MidiTimeoutList midi_timeouts;
1313 bool mmc_step_timeout ();
1315 MIDI::byte mmc_buffer[32];
1316 MIDI::byte mtc_msg[16];
1317 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1318 MIDI::byte midi_msg[16];
1319 nframes_t outbound_mtc_smpte_frame;
1320 SMPTE::Time transmitting_smpte_time;
1321 int next_quarter_frame_to_send;
1323 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1324 nframes_t _frames_per_hour;
1325 nframes_t _smpte_frames_per_hour;
1326 nframes_t _smpte_offset;
1327 bool _smpte_offset_negative;
1329 /* cache the most-recently requested time conversions. This helps when we
1330 * have multiple clocks showing the same time (e.g. the transport frame) */
1331 bool last_smpte_valid;
1332 jack_nframes_t last_smpte_when;
1333 SMPTE::Time last_smpte;
1335 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1337 int send_full_time_code(jack_nframes_t nframes);
1338 int send_midi_time_code_for_cycle(jack_nframes_t nframes);
1340 nframes_t adjust_apparent_position (nframes_t frames);
1342 void reset_record_status ();
1344 int no_roll (nframes_t nframes, nframes_t offset);
1346 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1347 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1349 struct MIDIRequest {
1362 MIDI::MachineControl::Command mmc_cmd;
1363 nframes_t locate_frame;
1365 // for SendMessage type
1368 MIDI::channel_t chan;
1370 MIDI::EventTwoBytes data;
1381 void *operator new(size_t ignored) {
1382 return pool.alloc ();
1385 void operator delete(void *ptr, size_t size) {
1390 static MultiAllocSingleReleasePool pool;
1393 mutable gint butler_active;
1395 void change_midi_ports ();
1396 int use_config_midi_ports ();
1398 bool waiting_to_start;
1400 void set_play_loop (bool yn);
1401 void overwrite_some_buffers (Diskstream*);
1402 void flush_all_redirects ();
1403 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1404 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1405 void force_locate (nframes_t frame, bool with_roll = false);
1406 void set_diskstream_speed (Diskstream*, float speed);
1407 void set_transport_speed (float speed, bool abort = false);
1408 void stop_transport (bool abort = false);
1409 void start_transport ();
1410 void actually_start_transport ();
1411 void realtime_stop (bool abort);
1412 void non_realtime_start_scrub ();
1413 void non_realtime_set_speed ();
1414 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1415 void non_realtime_overwrite (int entry_request_count, bool& finished);
1416 void butler_transport_work ();
1417 void post_transport ();
1418 void engine_halted ();
1419 void xrun_recovery ();
1421 TempoMap *_tempo_map;
1422 void tempo_map_changed (Change);
1424 /* edit/mix groups */
1426 int load_route_groups (const XMLNode&, bool is_edit);
1427 int load_edit_groups (const XMLNode&);
1428 int load_mix_groups (const XMLNode&);
1431 list<RouteGroup *> edit_groups;
1432 list<RouteGroup *> mix_groups;
1436 SerializedRCUManager<DiskstreamList> diskstreams;
1438 uint32_t dstream_buffer_size;
1439 int load_diskstreams (const XMLNode&);
1443 SerializedRCUManager<RouteList> routes;
1445 void add_routes (RouteList&, bool save = true);
1446 uint32_t destructive_index;
1448 int load_routes (const XMLNode&);
1449 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1453 bool solo_update_disabled;
1454 bool currently_soloing;
1456 void route_mute_changed (void *src);
1457 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1458 void catch_up_on_solo ();
1459 void update_route_solo_state ();
1460 void modify_solo_mute (bool, bool);
1461 void strip_portname_for_solo (string& portname);
1463 /* REGION MANAGEMENT */
1465 mutable Glib::Mutex region_lock;
1466 typedef map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1469 void add_region (boost::shared_ptr<Region>);
1470 void region_changed (Change, boost::weak_ptr<Region>);
1471 void remove_region (boost::weak_ptr<Region>);
1473 int load_regions (const XMLNode& node);
1477 mutable Glib::Mutex source_lock;
1478 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1482 int load_sources (const XMLNode& node);
1483 XMLNode& get_sources_as_xml ();
1485 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1489 mutable Glib::Mutex playlist_lock;
1490 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1491 PlaylistList playlists;
1492 PlaylistList unused_playlists;
1494 int load_playlists (const XMLNode&);
1495 int load_unused_playlists (const XMLNode&);
1496 void remove_playlist (boost::weak_ptr<Playlist>);
1497 void track_playlist (bool, boost::weak_ptr<Playlist>);
1499 boost::shared_ptr<Playlist> playlist_factory (string name);
1500 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1502 void playlist_length_changed ();
1503 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1505 /* NAMED SELECTIONS */
1507 mutable Glib::Mutex named_selection_lock;
1508 typedef set<NamedSelection *> NamedSelectionList;
1509 NamedSelectionList named_selections;
1511 int load_named_selections (const XMLNode&);
1513 NamedSelection *named_selection_factory (string name);
1514 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1516 /* CURVES and AUTOMATION LISTS */
1517 std::map<PBD::ID, Curve*> curves;
1518 std::map<PBD::ID, AutomationList*> automation_lists;
1520 /* DEFAULT FADE CURVES */
1522 float default_fade_steepness;
1523 float default_fade_msecs;
1527 boost::shared_ptr<Auditioner> auditioner;
1528 void set_audition (boost::shared_ptr<Region>);
1529 void non_realtime_set_audition ();
1530 boost::shared_ptr<Region> pending_audition_region;
1536 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1538 /* INSERT AND SEND MANAGEMENT */
1540 list<PortInsert *> _port_inserts;
1541 list<PluginInsert *> _plugin_inserts;
1542 list<Send *> _sends;
1543 boost::dynamic_bitset<uint32_t> send_bitset;
1544 boost::dynamic_bitset<uint32_t> insert_bitset;
1546 uint32_t insert_cnt;
1549 void add_redirect (Redirect *);
1550 void remove_redirect (Redirect *);
1554 struct space_and_path {
1555 uint32_t blocks; /* 4kB blocks */
1563 struct space_and_path_ascending_cmp {
1564 bool operator() (space_and_path a, space_and_path b) {
1565 return a.blocks > b.blocks;
1569 void setup_raid_path (string path);
1571 vector<space_and_path> session_dirs;
1572 vector<space_and_path>::iterator last_rr_session_dir;
1573 uint32_t _total_free_4k_blocks;
1574 Glib::Mutex space_lock;
1576 static const char* old_sound_dir_name;
1577 static const char* sound_dir_name;
1578 static const char* dead_sound_dir_name;
1579 static const char* interchange_dir_name;
1580 static const char* peak_dir_name;
1581 static const char* export_dir_name;
1583 string old_sound_dir (bool with_path = true) const;
1584 string discover_best_sound_dir (bool destructive = false);
1585 int ensure_sound_dir (string, string&);
1586 void refresh_disk_space ();
1588 mutable gint _playback_load;
1589 mutable gint _capture_load;
1590 mutable gint _playback_load_min;
1591 mutable gint _capture_load_min;
1593 /* I/O Connections */
1595 typedef list<Connection *> ConnectionList;
1596 mutable Glib::Mutex connection_lock;
1597 ConnectionList _connections;
1598 int load_connections (const XMLNode&);
1600 void reverse_diskstream_buffers ();
1602 UndoHistory _history;
1603 UndoTransaction* current_trans;
1605 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1606 GlobalRouteMeterState get_global_route_metering ();
1608 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1609 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1611 void set_global_mute (GlobalRouteBooleanState s, void *src);
1612 void set_global_solo (GlobalRouteBooleanState s, void *src);
1613 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1615 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1616 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1617 void reset_jack_connection (jack_client_t* jack);
1618 void record_enable_change_all (bool yn);
1620 XMLNode& state(bool);
1630 Click (nframes_t s, nframes_t d, const Sample *b)
1631 : start (s), duration (d), data (b) { offset = 0; }
1633 void *operator new(size_t ignored) {
1634 return pool.alloc ();
1637 void operator delete(void *ptr, size_t size) {
1645 typedef list<Click*> Clicks;
1649 boost::shared_ptr<IO> _click_io;
1651 Sample* click_emphasis_data;
1652 nframes_t click_length;
1653 nframes_t click_emphasis_length;
1654 mutable Glib::RWLock click_lock;
1656 static const Sample default_click[];
1657 static const nframes_t default_click_length;
1658 static const Sample default_click_emphasis[];
1659 static const nframes_t default_click_emphasis_length;
1662 void setup_click_sounds (int which);
1663 void clear_clicks ();
1664 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1666 vector<Route*> master_outs;
1668 /* range playback */
1670 list<AudioRange> current_audio_range;
1672 void set_play_range (bool yn);
1673 void setup_auto_play ();
1678 boost::shared_ptr<IO> _master_out;
1679 boost::shared_ptr<IO> _control_out;
1681 gain_t* _gain_automation_buffer;
1682 pan_t** _pan_automation_buffer;
1683 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1684 uint32_t _npan_buffers;
1688 long _vst_callback (VSTPlugin*,
1695 /* number of hardware ports we're using,
1696 based on max (requested,available)
1699 uint32_t n_physical_outputs;
1700 uint32_t n_physical_inputs;
1702 void remove_pending_capture_state ();
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 ();
1724 } // namespace ARDOUR
1726 #endif /* __ardour_session_h__ */