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;
256 Glib::ustring peak_path (Glib::ustring) const;
258 static string suffixed_search_path (std::string suffix, bool data);
259 static string control_protocol_path ();
260 static string template_path ();
261 static string template_dir ();
262 static void get_template_list (list<string>&);
264 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
265 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
267 void process (nframes_t nframes);
269 vector<Sample*>& get_passthru_buffers() { return _passthru_buffers; }
270 vector<Sample*>& get_silent_buffers (uint32_t howmany);
271 vector<Sample*>& get_send_buffers () { return _send_buffers; }
273 void add_diskstream (boost::shared_ptr<Diskstream>);
274 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
275 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
277 bool have_captured() const { return _have_captured; }
279 void refill_all_diskstream_buffers ();
280 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
282 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
283 uint32_t n_diskstreams() const;
285 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
286 typedef std::list<boost::shared_ptr<Route> > RouteList;
288 boost::shared_ptr<RouteList> get_routes() const {
289 return routes.reader ();
292 uint32_t nroutes() const { return routes.reader()->size(); }
293 uint32_t ntracks () const;
294 uint32_t nbusses () const;
296 struct RoutePublicOrderSorter {
297 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
300 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
301 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
302 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
304 boost::shared_ptr<Route> route_by_name (string);
305 boost::shared_ptr<Route> route_by_id (PBD::ID);
306 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
308 bool route_name_unique (string) const;
310 bool get_record_enabled() const {
311 return (record_status () >= Enabled);
314 RecordState record_status() const {
315 return (RecordState) g_atomic_int_get (&_record_status);
318 bool actively_recording () {
319 return record_status() == Recording;
322 bool record_enabling_legal () const;
323 void maybe_enable_record ();
324 void disable_record (bool rt_context, bool force = false);
325 void step_back_from_record ();
327 void maybe_write_autosave ();
329 /* Proxy signal for region hidden changes */
331 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
333 /* Emitted when all i/o connections are complete */
335 sigc::signal<void> IOConnectionsComplete;
337 /* Record status signals */
339 sigc::signal<void> RecordStateChanged;
341 /* Transport mechanism signals */
343 sigc::signal<void> TransportStateChange; /* generic */
344 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
345 sigc::signal<void> DurationChanged;
346 sigc::signal<void> HaltOnXrun;
347 sigc::signal<void> TransportLooped;
349 sigc::signal<void,RouteList&> RouteAdded;
351 void request_roll_at_and_return (nframes_t start, nframes_t return_to);
352 void request_bounded_roll (nframes_t start, nframes_t end);
353 void request_stop (bool abort = false);
354 void request_locate (nframes_t frame, bool with_roll = false);
356 void request_play_loop (bool yn);
357 bool get_play_loop () const { return play_loop; }
359 nframes_t last_transport_start() const { return _last_roll_location; }
360 void goto_end () { request_locate (end_location->start(), false);}
361 void goto_start () { request_locate (start_location->start(), false); }
362 void set_session_start (nframes_t start) { start_location->set_start(start); }
363 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
364 void use_rf_shuttle_speed ();
365 void allow_auto_play (bool yn);
366 void request_transport_speed (float speed);
367 void request_overwrite_buffer (Diskstream*);
368 void request_diskstream_speed (Diskstream&, float speed);
369 void request_input_change_handling ();
371 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
372 bool transport_locked () const;
376 int remove_region_from_region_list (boost::shared_ptr<Region>);
378 nframes_t get_maximum_extent () const;
379 nframes_t current_end_frame() const { return end_location->start(); }
380 nframes_t current_start_frame() const { return start_location->start(); }
381 nframes_t frame_rate() const { return _current_frame_rate; }
382 nframes_t frames_per_hour() const { return _frames_per_hour; }
384 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
385 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
387 float smpte_frames_per_second() const;
388 bool smpte_drop_frames() const;
392 Locations *locations() { return &_locations; }
394 sigc::signal<void,Location*> auto_loop_location_changed;
395 sigc::signal<void,Location*> auto_punch_location_changed;
396 sigc::signal<void> locations_modified;
398 void set_auto_punch_location (Location *);
399 void set_auto_loop_location (Location *);
400 int location_name(string& result, string base = string(""));
402 void reset_input_monitor_state ();
404 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
405 void remove_event (nframes_t frame, Event::Type type);
406 void clear_events (Event::Type type);
408 nframes_t get_block_size() const { return current_block_size; }
409 nframes_t worst_output_latency () const { return _worst_output_latency; }
410 nframes_t worst_input_latency () const { return _worst_input_latency; }
411 nframes_t worst_track_latency () const { return _worst_track_latency; }
413 int save_state (string snapshot_name, bool pending = false);
414 int restore_state (string snapshot_name);
415 int save_template (string template_name);
416 int save_history (string snapshot_name = "");
417 int restore_history (string snapshot_name);
418 void remove_state (string snapshot_name);
419 void rename_state (string old_name, string new_name);
420 void remove_pending_capture_state ();
422 static int rename_template (string old_name, string new_name);
424 static int delete_template (string name);
426 sigc::signal<void,string> StateSaved;
427 sigc::signal<void> StateReady;
429 vector<string*>* possible_states() const;
430 static vector<string*>* possible_states(string path);
432 XMLNode& get_state();
433 int set_state(const XMLNode& node); // not idempotent
434 XMLNode& get_template();
436 void add_instant_xml (XMLNode&, const std::string& dir);
438 enum StateOfTheState {
443 InitialConnecting = 0x8,
448 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
450 RouteGroup* add_edit_group (string);
451 RouteGroup* add_mix_group (string);
453 void remove_edit_group (RouteGroup&);
454 void remove_mix_group (RouteGroup&);
456 RouteGroup *mix_group_by_name (string);
457 RouteGroup *edit_group_by_name (string);
459 sigc::signal<void,RouteGroup*> edit_group_added;
460 sigc::signal<void,RouteGroup*> mix_group_added;
461 sigc::signal<void> edit_group_removed;
462 sigc::signal<void> mix_group_removed;
464 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
465 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
470 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
471 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
476 /* fundamental operations. duh. */
478 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
479 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
481 void remove_route (boost::shared_ptr<Route>);
483 void resort_routes ();
484 void resort_routes_using (boost::shared_ptr<RouteList>);
486 void set_remote_control_ids();
488 AudioEngine &engine() { return _engine; };
495 nframes_t transport_frame () const {return _transport_frame; }
496 nframes_t audible_frame () const;
497 nframes64_t requested_return_frame() const { return _requested_return_frame; }
511 int set_smpte_format (SmpteFormat);
512 void sync_time_vars();
514 void bbt_time (nframes_t when, BBT_Time&);
515 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
516 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
517 void smpte_time (SMPTE::Time &);
518 void smpte_time (nframes_t when, SMPTE::Time&);
519 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
521 void smpte_duration (nframes_t, SMPTE::Time&) const;
522 void smpte_duration_string (char *, nframes_t) const;
524 void set_smpte_offset (nframes_t);
525 nframes_t smpte_offset () const { return _smpte_offset; }
526 void set_smpte_offset_negative (bool);
527 bool smpte_offset_negative () const { return _smpte_offset_negative; }
529 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
531 static sigc::signal<void> StartTimeChanged;
532 static sigc::signal<void> EndTimeChanged;
533 static sigc::signal<void> SMPTEOffsetChanged;
535 void request_slave_source (SlaveSource);
536 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
538 float transport_speed() const { return _transport_speed; }
539 bool transport_stopped() const { return _transport_speed == 0.0f; }
540 bool transport_rolling() const { return _transport_speed != 0.0f; }
542 void set_silent (bool yn);
543 bool silent () { return _silent; }
545 int jack_slave_sync (nframes_t);
547 TempoMap& tempo_map() { return *_tempo_map; }
551 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionAdded;
552 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionRemoved;
554 int region_name (string& result, string base = string(""), bool newlevel = false) const;
555 string new_region_name (string);
556 string path_from_region_name (string name, string identifier);
558 boost::shared_ptr<AudioRegion> find_whole_file_parent (boost::shared_ptr<AudioRegion const>);
559 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
561 boost::shared_ptr<AudioRegion> XMLRegionFactory (const XMLNode&, bool full);
563 template<class T> void foreach_audio_region (T *obj, void (T::*func)(boost::shared_ptr<AudioRegion>));
565 /* source management */
567 struct import_status : public InterThreadInfo {
573 volatile bool freeze;
574 std::vector<Glib::ustring> paths;
581 void import_audiofiles (import_status&);
582 bool sample_rate_convert (import_status&, string infile, string& outfile);
583 string build_tmp_convert_name (string file);
585 SlaveSource post_export_slave;
586 nframes_t post_export_position;
588 int start_audio_export (ARDOUR::AudioExportSpecification&);
589 int stop_audio_export (ARDOUR::AudioExportSpecification&);
590 void finalize_audio_export ();
592 void add_source (boost::shared_ptr<Source>);
593 void remove_source (boost::weak_ptr<Source>);
595 struct cleanup_report {
596 vector<string> paths;
600 int cleanup_sources (cleanup_report&);
601 int cleanup_trash_sources (cleanup_report&);
603 int destroy_region (boost::shared_ptr<Region>);
604 int destroy_regions (std::list<boost::shared_ptr<Region> >);
606 int remove_last_capture ();
608 /* handlers should return -1 for "stop cleanup", 0 for
609 "yes, delete this playlist" and 1 for "no, don't delete
613 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
615 /* handlers should return !0 for use pending state, 0 for
619 static sigc::signal<int> AskAboutPendingState;
621 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
623 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
624 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
626 /* playlist management */
628 boost::shared_ptr<Playlist> playlist_by_name (string name);
629 void add_playlist (boost::shared_ptr<Playlist>);
630 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
631 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
633 uint32_t n_playlists() const;
635 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
636 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
638 /* named selections */
640 NamedSelection* named_selection_by_name (string name);
641 void add_named_selection (NamedSelection *);
642 void remove_named_selection (NamedSelection *);
644 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
645 sigc::signal<void> NamedSelectionAdded;
646 sigc::signal<void> NamedSelectionRemoved;
648 /* Curves and AutomationLists (TODO when they go away) */
649 void add_curve(Curve*);
650 void add_automation_list(AutomationList*);
654 float get_default_fade_length () const { return default_fade_msecs; }
655 float get_default_fade_steepness () const { return default_fade_steepness; }
656 void set_default_fade (float steepness, float msecs);
660 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
661 void audition_playlist ();
662 void audition_region (boost::shared_ptr<Region>);
663 void cancel_audition ();
664 bool is_auditioning () const;
666 sigc::signal<void,bool> AuditionActive;
668 /* flattening stuff */
670 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite, vector<boost::shared_ptr<AudioSource> >&,
671 InterThreadInfo& wot);
672 int freeze (InterThreadInfo&);
674 /* session-wide solo/mute/rec-enable */
676 bool soloing() const { return currently_soloing; }
678 void set_all_solo (bool);
679 void set_all_mute (bool);
681 sigc::signal<void,bool> SoloActive;
682 sigc::signal<void> SoloChanged;
684 void record_disenable_all ();
685 void record_enable_all ();
687 /* control/master out */
689 boost::shared_ptr<IO> control_out() const { return _control_out; }
690 boost::shared_ptr<IO> master_out() const { return _master_out; }
692 /* insert/send management */
694 uint32_t n_port_inserts() const { return _port_inserts.size(); }
695 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
696 uint32_t n_sends() const { return _sends.size(); }
698 static void set_disable_all_loaded_plugins (bool yn) {
699 _disable_all_loaded_plugins = yn;
701 static bool get_disable_all_loaded_plugins() {
702 return _disable_all_loaded_plugins;
705 uint32_t next_send_id();
706 uint32_t next_insert_id();
707 void mark_send_id (uint32_t);
708 void mark_insert_id (uint32_t);
710 /* s/w "RAID" management */
712 nframes_t available_capture_duration();
714 /* I/O Connections */
716 template<class T> void foreach_connection (T *obj, void (T::*func)(Connection *));
717 void add_connection (Connection *);
718 void remove_connection (Connection *);
719 Connection *connection_by_name (string) const;
721 sigc::signal<void,Connection *> ConnectionAdded;
722 sigc::signal<void,Connection *> ConnectionRemoved;
726 int set_mtc_port (string port_tag);
727 int set_mmc_port (string port_tag);
728 int set_midi_port (string port_tag);
729 MIDI::Port *mtc_port() const { return _mtc_port; }
730 MIDI::Port *mmc_port() const { return _mmc_port; }
731 MIDI::Port *midi_port() const { return _midi_port; }
733 sigc::signal<void> MTC_PortChanged;
734 sigc::signal<void> MMC_PortChanged;
735 sigc::signal<void> MIDI_PortChanged;
737 void set_trace_midi_input (bool, MIDI::Port* port = 0);
738 void set_trace_midi_output (bool, MIDI::Port* port = 0);
740 bool get_trace_midi_input(MIDI::Port *port = 0);
741 bool get_trace_midi_output(MIDI::Port *port = 0);
743 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
745 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
747 void set_mmc_receive_device_id (uint32_t id);
748 void set_mmc_send_device_id (uint32_t id);
752 void start_scrub (nframes_t where);
754 void set_scrub_speed (float);
755 nframes_t scrub_buffer_size() const;
756 sigc::signal<void> ScrubReady;
758 /* History (for editors, mixers, UIs etc.) */
760 void undo (uint32_t n) {
764 void redo (uint32_t n) {
768 UndoHistory& history() { return _history; }
770 uint32_t undo_depth() const { return _history.undo_depth(); }
771 uint32_t redo_depth() const { return _history.redo_depth(); }
772 string next_undo() const { return _history.next_undo(); }
773 string next_redo() const { return _history.next_redo(); }
775 void begin_reversible_command (string cmd_name);
776 void commit_reversible_command (Command* cmd = 0);
778 void add_command (Command *const cmd) {
779 current_trans->add_command (cmd);
782 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
784 // these commands are implemented in libs/ardour/session_command.cc
785 Command* memento_command_factory(XMLNode* n);
786 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
788 Command* global_state_command_factory (const XMLNode& n);
790 class GlobalRouteStateCommand : public Command
793 GlobalRouteStateCommand (Session&, void*);
794 GlobalRouteStateCommand (Session&, const XMLNode& node);
795 int set_state (const XMLNode&);
796 XMLNode& get_state ();
799 GlobalRouteBooleanState before, after;
805 class GlobalSoloStateCommand : public GlobalRouteStateCommand
808 GlobalSoloStateCommand (Session &, void *src);
809 GlobalSoloStateCommand (Session&, const XMLNode&);
810 void operator()(); //redo
812 XMLNode &get_state();
816 class GlobalMuteStateCommand : public GlobalRouteStateCommand
819 GlobalMuteStateCommand(Session &, void *src);
820 GlobalMuteStateCommand (Session&, const XMLNode&);
821 void operator()(); // redo
823 XMLNode &get_state();
827 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
830 GlobalRecordEnableStateCommand(Session &, void *src);
831 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
832 void operator()(); // redo
834 XMLNode &get_state();
838 class GlobalMeteringStateCommand : public Command
841 GlobalMeteringStateCommand(Session &, void *src);
842 GlobalMeteringStateCommand (Session&, const XMLNode&);
845 XMLNode &get_state();
846 int set_state (const XMLNode&);
852 GlobalRouteMeterState before;
853 GlobalRouteMeterState after;
858 boost::shared_ptr<IO> click_io() { return _click_io; }
860 /* disk, buffer loads */
862 uint32_t playback_load ();
863 uint32_t capture_load ();
864 uint32_t playback_load_min ();
865 uint32_t capture_load_min ();
867 void reset_playback_load_min ();
868 void reset_capture_load_min ();
870 float read_data_rate () const;
871 float write_data_rate () const;
875 void set_audio_range (list<AudioRange>&);
876 void set_music_range (list<MusicRange>&);
878 void request_play_range (bool yn);
879 bool get_play_range () const { return _play_range; }
882 typedef vector<string> FavoriteDirs;
884 static int read_favorite_dirs (FavoriteDirs&);
886 static int write_favorite_dirs (FavoriteDirs&);
890 static const char* template_suffix() { return _template_suffix; }
891 static const char* statefile_suffix() { return _statefile_suffix; }
892 static const char* pending_suffix() { return _pending_suffix; }
894 /* buffers for gain and pan */
896 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
897 pan_t** pan_automation_buffer() const { return _pan_automation_buffer; }
899 /* buffers for conversion */
908 static long vst_callback (AEffect* effect,
915 typedef float (*compute_peak_t) (Sample *, nframes_t, float);
916 typedef void (*find_peaks_t) (Sample *, nframes_t, float *, float*);
917 typedef void (*apply_gain_to_buffer_t) (Sample *, nframes_t, float);
918 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, nframes_t, float);
919 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, nframes_t);
921 static compute_peak_t compute_peak;
922 static find_peaks_t find_peaks;
923 static apply_gain_to_buffer_t apply_gain_to_buffer;
924 static mix_buffers_with_gain_t mix_buffers_with_gain;
925 static mix_buffers_no_gain_t mix_buffers_no_gain;
927 static sigc::signal<void> SendFeedback;
931 PBD::Controllable* controllable_by_id (const PBD::ID&);
933 void add_controllable (PBD::Controllable*);
934 void remove_controllable (PBD::Controllable*);
937 friend class AudioEngine;
938 void set_block_size (nframes_t nframes);
939 void set_frame_rate (nframes_t nframes);
942 friend class Diskstream;
944 void wait_till_butler_finished();
948 void schedule_curve_reallocation ();
949 void update_latency_compensation (bool, bool);
952 int create (bool& new_session, const string& mix_template, nframes_t initial_length);
955 nframes_t compute_initial_length ();
957 static const char* _template_suffix;
958 static const char* _statefile_suffix;
959 static const char* _pending_suffix;
962 PendingDeclickIn = 0x1,
963 PendingDeclickOut = 0x2,
964 StopPendingCapture = 0x4,
965 AutoReturning = 0x10,
966 PendingLocate = 0x20,
967 PendingSetLoop = 0x40
970 /* stuff used in process() should be close together to
974 typedef void (Session::*process_function_type)(nframes_t);
976 AudioEngine& _engine;
977 mutable gint processing_prohibited;
978 process_function_type process_function;
979 process_function_type last_process_function;
980 bool waiting_for_sync_offset;
981 nframes_t _base_frame_rate;
982 nframes_t _current_frame_rate; //this includes video pullup offset
983 int transport_sub_state;
984 mutable gint _record_status;
985 volatile nframes_t _transport_frame;
986 Location* end_location;
987 Location* start_location;
990 volatile float _transport_speed;
991 volatile float _desired_transport_speed;
992 float _last_transport_speed;
993 bool auto_play_legal;
994 nframes_t _last_slave_transport_frame;
995 nframes_t maximum_output_latency;
996 nframes_t last_stop_frame;
997 volatile nframes64_t _requested_return_frame;
998 vector<Sample *> _passthru_buffers;
999 vector<Sample *> _silent_buffers;
1000 vector<Sample *> _send_buffers;
1001 nframes_t current_block_size;
1002 nframes_t _worst_output_latency;
1003 nframes_t _worst_input_latency;
1004 nframes_t _worst_track_latency;
1005 bool _have_captured;
1007 float _meter_falloff;
1008 bool _end_location_is_free;
1010 void set_worst_io_latencies ();
1011 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1012 set_worst_io_latencies ();
1015 void update_latency_compensation_proxy (void* ignored);
1017 void ensure_passthru_buffers (uint32_t howmany);
1019 void process_scrub (nframes_t);
1020 void process_without_events (nframes_t);
1021 void process_with_events (nframes_t);
1022 void process_audition (nframes_t);
1023 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1025 /* slave tracking */
1027 static const int delta_accumulator_size = 25;
1028 int delta_accumulator_cnt;
1029 long delta_accumulator[delta_accumulator_size];
1030 long average_slave_delta;
1032 bool have_first_delta_accumulator;
1040 SlaveState slave_state;
1041 nframes_t slave_wait_end;
1043 void reset_slave_state ();
1044 bool follow_slave (nframes_t, nframes_t);
1045 void set_slave_source (SlaveSource);
1048 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1050 void prepare_diskstreams ();
1051 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1052 int process_routes (nframes_t, nframes_t);
1053 int silent_process_routes (nframes_t, nframes_t);
1055 bool get_rec_monitors_input () {
1056 if (actively_recording()) {
1059 if (Config->get_auto_input()) {
1067 int get_transport_declick_required () {
1069 if (transport_sub_state & PendingDeclickIn) {
1070 transport_sub_state &= ~PendingDeclickIn;
1072 } else if (transport_sub_state & PendingDeclickOut) {
1079 bool maybe_stop (nframes_t limit) {
1080 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1087 bool maybe_sync_start (nframes_t&, nframes_t&);
1089 void check_declick_out ();
1091 MIDI::MachineControl* mmc;
1092 MIDI::Port* _mmc_port;
1093 MIDI::Port* _mtc_port;
1094 MIDI::Port* _midi_port;
1097 bool session_send_mmc;
1098 bool session_send_mtc;
1099 bool session_midi_feedback;
1102 nframes_t last_loopend;
1104 RingBuffer<Event*> pending_events;
1107 void when_engine_running ();
1108 void graph_reordered ();
1110 string _current_snapshot_name;
1112 XMLTree* state_tree;
1113 bool state_was_pending;
1114 StateOfTheState _state_of_the_state;
1117 int load_options (const XMLNode&);
1118 XMLNode& get_options () const;
1119 int load_state (string snapshot_name);
1120 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1122 nframes_t _last_roll_location;
1123 nframes_t _last_record_location;
1124 bool pending_locate_roll;
1125 nframes_t pending_locate_frame;
1127 bool pending_locate_flush;
1129 bool pending_auto_loop;
1131 Sample* butler_mixdown_buffer;
1132 float* butler_gain_buffer;
1133 pthread_t butler_thread;
1134 Glib::Mutex butler_request_lock;
1135 Glib::Cond butler_paused;
1136 bool butler_should_run;
1137 mutable gint butler_should_do_transport_work;
1138 int butler_request_pipe[2];
1140 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1142 struct ButlerRequest {
1151 enum PostTransportWork {
1152 PostTransportStop = 0x1,
1153 PostTransportDisableRecord = 0x2,
1154 PostTransportPosition = 0x8,
1155 PostTransportDidRecord = 0x20,
1156 PostTransportDuration = 0x40,
1157 PostTransportLocate = 0x80,
1158 PostTransportRoll = 0x200,
1159 PostTransportAbort = 0x800,
1160 PostTransportOverWrite = 0x1000,
1161 PostTransportSpeed = 0x2000,
1162 PostTransportAudition = 0x4000,
1163 PostTransportScrub = 0x8000,
1164 PostTransportReverse = 0x10000,
1165 PostTransportInputChange = 0x20000,
1166 PostTransportCurveRealloc = 0x40000
1169 static const PostTransportWork ProcessCannotProceedMask =
1170 PostTransportWork (PostTransportInputChange|
1172 PostTransportReverse|
1173 PostTransportCurveRealloc|
1175 PostTransportAudition|
1176 PostTransportLocate|
1179 PostTransportWork post_transport_work;
1181 void summon_butler ();
1182 void schedule_butler_transport_work ();
1183 int start_butler_thread ();
1184 void terminate_butler_thread ();
1185 static void *_butler_thread_work (void *arg);
1186 void* butler_thread_work ();
1188 uint32_t cumulative_rf_motion;
1191 void set_rf_speed (float speed);
1192 void reset_rf_scale (nframes_t frames_moved);
1194 Locations _locations;
1195 void locations_changed ();
1196 void locations_added (Location*);
1197 void handle_locations_changed (Locations::LocationList&);
1199 sigc::connection auto_punch_start_changed_connection;
1200 sigc::connection auto_punch_end_changed_connection;
1201 sigc::connection auto_punch_changed_connection;
1202 void auto_punch_start_changed (Location *);
1203 void auto_punch_end_changed (Location *);
1204 void auto_punch_changed (Location *);
1206 sigc::connection auto_loop_start_changed_connection;
1207 sigc::connection auto_loop_end_changed_connection;
1208 sigc::connection auto_loop_changed_connection;
1209 void auto_loop_changed (Location *);
1211 typedef list<Event *> Events;
1213 Events immediate_events;
1214 Events::iterator next_event;
1216 /* there can only ever be one of each of these */
1218 Event *auto_loop_event;
1219 Event *punch_out_event;
1220 Event *punch_in_event;
1224 void dump_events () const;
1225 void queue_event (Event *ev);
1226 void merge_event (Event*);
1227 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1228 bool _replace_event (Event*);
1229 bool _remove_event (Event *);
1230 void _clear_event_type (Event::Type);
1232 void first_stage_init (string path, string snapshot_name);
1233 int second_stage_init (bool new_tracks);
1234 void find_current_end ();
1235 void remove_empty_sounds ();
1237 void setup_midi_control ();
1238 int midi_read (MIDI::Port *);
1240 void enable_record ();
1242 void increment_transport_position (uint32_t val) {
1243 if (max_frames - val < _transport_frame) {
1244 _transport_frame = max_frames;
1246 _transport_frame += val;
1250 void decrement_transport_position (uint32_t val) {
1251 if (val < _transport_frame) {
1252 _transport_frame -= val;
1254 _transport_frame = 0;
1258 void post_transport_motion ();
1259 static void *session_loader_thread (void *arg);
1263 void set_next_event ();
1264 void process_event (Event *);
1266 /* MIDI Machine Control */
1268 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1269 void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1270 void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1272 void spp_start (MIDI::Parser&);
1273 void spp_continue (MIDI::Parser&);
1274 void spp_stop (MIDI::Parser&);
1276 void mmc_deferred_play (MIDI::MachineControl &);
1277 void mmc_stop (MIDI::MachineControl &);
1278 void mmc_step (MIDI::MachineControl &, int);
1279 void mmc_pause (MIDI::MachineControl &);
1280 void mmc_record_pause (MIDI::MachineControl &);
1281 void mmc_record_strobe (MIDI::MachineControl &);
1282 void mmc_record_exit (MIDI::MachineControl &);
1283 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1284 void mmc_fast_forward (MIDI::MachineControl &);
1285 void mmc_rewind (MIDI::MachineControl &);
1286 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1287 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1288 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1290 struct timeval last_mmc_step;
1293 typedef sigc::slot<bool> MidiTimeoutCallback;
1294 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1296 MidiTimeoutList midi_timeouts;
1297 bool mmc_step_timeout ();
1299 MIDI::byte mmc_buffer[32];
1300 MIDI::byte mtc_msg[16];
1301 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1302 MIDI::byte midi_msg[16];
1303 nframes_t outbound_mtc_smpte_frame;
1304 SMPTE::Time transmitting_smpte_time;
1305 int next_quarter_frame_to_send;
1307 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1308 nframes_t _frames_per_hour;
1309 nframes_t _smpte_frames_per_hour;
1310 nframes_t _smpte_offset;
1311 bool _smpte_offset_negative;
1313 /* cache the most-recently requested time conversions.
1314 this helps when we have multiple clocks showing the
1315 same time (e.g. the transport frame)
1318 bool last_smpte_valid;
1319 nframes_t last_smpte_when;
1320 SMPTE::Time last_smpte;
1322 int send_full_time_code ();
1323 int send_midi_time_code ();
1325 void send_full_time_code_in_another_thread ();
1326 void send_midi_time_code_in_another_thread ();
1327 void send_time_code_in_another_thread (bool full);
1328 void send_mmc_in_another_thread (MIDI::MachineControl::Command, nframes_t frame = 0);
1330 nframes_t adjust_apparent_position (nframes_t frames);
1332 void reset_record_status ();
1334 int no_roll (nframes_t nframes, nframes_t offset);
1336 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1337 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1339 struct MIDIRequest {
1352 MIDI::MachineControl::Command mmc_cmd;
1353 nframes_t locate_frame;
1355 // for SendMessage type
1358 MIDI::channel_t chan;
1360 MIDI::EventTwoBytes data;
1371 void *operator new(size_t ignored) {
1372 return pool.alloc ();
1375 void operator delete(void *ptr, size_t size) {
1380 static MultiAllocSingleReleasePool pool;
1383 Glib::Mutex midi_lock;
1384 pthread_t midi_thread;
1385 int midi_request_pipe[2];
1386 mutable gint butler_active;
1387 RingBuffer<MIDIRequest*> midi_requests;
1389 int start_midi_thread ();
1390 void terminate_midi_thread ();
1391 void poke_midi_thread ();
1392 static void *_midi_thread_work (void *arg);
1393 void midi_thread_work ();
1394 void change_midi_ports ();
1395 int use_config_midi_ports ();
1397 bool waiting_to_start;
1399 void set_play_loop (bool yn);
1400 void overwrite_some_buffers (Diskstream*);
1401 void flush_all_redirects ();
1402 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1403 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1404 void force_locate (nframes_t frame, bool with_roll = false);
1405 void set_diskstream_speed (Diskstream*, float speed);
1406 void set_transport_speed (float speed, bool abort = false);
1407 void stop_transport (bool abort = false);
1408 void start_transport ();
1409 void actually_start_transport ();
1410 void realtime_stop (bool abort);
1411 void non_realtime_start_scrub ();
1412 void non_realtime_set_speed ();
1413 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1414 void non_realtime_overwrite (int entry_request_count, bool& finished);
1415 void butler_transport_work ();
1416 void post_transport ();
1417 void engine_halted ();
1418 void xrun_recovery ();
1420 TempoMap *_tempo_map;
1421 void tempo_map_changed (Change);
1423 /* edit/mix groups */
1425 int load_route_groups (const XMLNode&, bool is_edit);
1426 int load_edit_groups (const XMLNode&);
1427 int load_mix_groups (const XMLNode&);
1430 list<RouteGroup *> edit_groups;
1431 list<RouteGroup *> mix_groups;
1435 SerializedRCUManager<DiskstreamList> diskstreams;
1437 uint32_t dstream_buffer_size;
1438 int load_diskstreams (const XMLNode&);
1442 SerializedRCUManager<RouteList> routes;
1444 void add_routes (RouteList&, bool save);
1445 uint32_t destructive_index;
1447 int load_routes (const XMLNode&);
1448 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1452 bool solo_update_disabled;
1453 bool currently_soloing;
1455 void route_mute_changed (void *src);
1456 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1457 void catch_up_on_solo ();
1458 void update_route_solo_state ();
1459 void modify_solo_mute (bool, bool);
1460 void strip_portname_for_solo (string& portname);
1462 /* REGION MANAGEMENT */
1464 mutable Glib::Mutex region_lock;
1465 typedef map<PBD::ID,boost::shared_ptr<AudioRegion> > AudioRegionList;
1466 AudioRegionList audio_regions;
1468 void add_region (boost::shared_ptr<Region>);
1469 void region_changed (Change, boost::weak_ptr<Region>);
1470 void remove_region (boost::weak_ptr<Region>);
1472 int load_regions (const XMLNode& node);
1476 mutable Glib::Mutex audio_source_lock;
1477 typedef std::map<PBD::ID,boost::shared_ptr<AudioSource> > AudioSourceList;
1479 AudioSourceList audio_sources;
1481 int load_sources (const XMLNode& node);
1482 XMLNode& get_sources_as_xml ();
1484 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1488 mutable Glib::Mutex playlist_lock;
1489 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1490 PlaylistList playlists;
1491 PlaylistList unused_playlists;
1493 int load_playlists (const XMLNode&);
1494 int load_unused_playlists (const XMLNode&);
1495 void remove_playlist (boost::weak_ptr<Playlist>);
1496 void track_playlist (bool, boost::weak_ptr<Playlist>);
1498 boost::shared_ptr<Playlist> playlist_factory (string name);
1499 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1501 void playlist_length_changed ();
1502 void diskstream_playlist_changed (boost::weak_ptr<Diskstream>);
1504 /* NAMED SELECTIONS */
1506 mutable Glib::Mutex named_selection_lock;
1507 typedef set<NamedSelection *> NamedSelectionList;
1508 NamedSelectionList named_selections;
1510 int load_named_selections (const XMLNode&);
1512 NamedSelection *named_selection_factory (string name);
1513 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1515 /* CURVES and AUTOMATION LISTS */
1516 std::map<PBD::ID, Curve*> curves;
1517 std::map<PBD::ID, AutomationList*> automation_lists;
1519 /* DEFAULT FADE CURVES */
1521 float default_fade_steepness;
1522 float default_fade_msecs;
1526 boost::shared_ptr<Auditioner> auditioner;
1527 void set_audition (boost::shared_ptr<Region>);
1528 void non_realtime_set_audition ();
1529 boost::shared_ptr<Region> pending_audition_region;
1535 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1537 /* INSERT AND SEND MANAGEMENT */
1539 list<PortInsert *> _port_inserts;
1540 list<PluginInsert *> _plugin_inserts;
1541 list<Send *> _sends;
1542 boost::dynamic_bitset<uint32_t> send_bitset;
1543 boost::dynamic_bitset<uint32_t> insert_bitset;
1545 uint32_t insert_cnt;
1548 void add_redirect (Redirect *);
1549 void remove_redirect (Redirect *);
1553 struct space_and_path {
1554 uint32_t blocks; /* 4kB blocks */
1562 struct space_and_path_ascending_cmp {
1563 bool operator() (space_and_path a, space_and_path b) {
1564 return a.blocks > b.blocks;
1568 void setup_raid_path (string path);
1570 vector<space_and_path> session_dirs;
1571 vector<space_and_path>::iterator last_rr_session_dir;
1572 uint32_t _total_free_4k_blocks;
1573 Glib::Mutex space_lock;
1575 static const char* old_sound_dir_name;
1576 static const char* sound_dir_name;
1577 static const char* dead_sound_dir_name;
1578 static const char* interchange_dir_name;
1579 static const char* peak_dir_name;
1580 static const char* export_dir_name;
1582 string old_sound_dir (bool with_path = true) const;
1583 string discover_best_sound_dir (bool destructive = false);
1584 int ensure_sound_dir (string, string&);
1585 void refresh_disk_space ();
1587 mutable gint _playback_load;
1588 mutable gint _capture_load;
1589 mutable gint _playback_load_min;
1590 mutable gint _capture_load_min;
1592 /* I/O Connections */
1594 typedef list<Connection *> ConnectionList;
1595 mutable Glib::Mutex connection_lock;
1596 ConnectionList _connections;
1597 int load_connections (const XMLNode&);
1599 void reverse_diskstream_buffers ();
1601 UndoHistory _history;
1602 UndoTransaction* current_trans;
1604 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1605 GlobalRouteMeterState get_global_route_metering ();
1607 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1608 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1610 void set_global_mute (GlobalRouteBooleanState s, void *src);
1611 void set_global_solo (GlobalRouteBooleanState s, void *src);
1612 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1614 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1615 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1616 void reset_jack_connection (jack_client_t* jack);
1617 void record_enable_change_all (bool yn);
1619 XMLNode& state(bool);
1629 Click (nframes_t s, nframes_t d, const Sample *b)
1630 : start (s), duration (d), data (b) { offset = 0; }
1632 void *operator new(size_t ignored) {
1633 return pool.alloc ();
1636 void operator delete(void *ptr, size_t size) {
1644 typedef list<Click*> Clicks;
1648 boost::shared_ptr<IO> _click_io;
1650 Sample* click_emphasis_data;
1651 nframes_t click_length;
1652 nframes_t click_emphasis_length;
1653 mutable Glib::RWLock click_lock;
1655 static const Sample default_click[];
1656 static const nframes_t default_click_length;
1657 static const Sample default_click_emphasis[];
1658 static const nframes_t default_click_emphasis_length;
1661 void setup_click_sounds (int which);
1662 void clear_clicks ();
1663 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1665 vector<Route*> master_outs;
1667 /* range playback */
1669 list<AudioRange> current_audio_range;
1671 void set_play_range (bool yn);
1672 void setup_auto_play ();
1677 boost::shared_ptr<IO> _master_out;
1678 boost::shared_ptr<IO> _control_out;
1680 gain_t* _gain_automation_buffer;
1681 pan_t** _pan_automation_buffer;
1682 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1683 uint32_t _npan_buffers;
1687 long _vst_callback (VSTPlugin*,
1694 /* number of hardware audio ports we're using,
1695 based on max (requested,available)
1698 uint32_t n_physical_audio_outputs;
1699 uint32_t n_physical_audio_inputs;
1701 int find_all_sources (std::string path, std::set<std::string>& result);
1702 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1704 LayerModel layer_model;
1705 CrossfadeModel xfade_model;
1707 typedef std::set<PBD::Controllable*> Controllables;
1708 Glib::Mutex controllables_lock;
1709 Controllables controllables;
1711 void reset_native_file_format();
1712 bool first_file_data_format_reset;
1713 bool first_file_header_format_reset;
1715 void config_changed (const char*);
1717 XMLNode& get_control_protocol_state ();
1719 void set_history_depth (uint32_t depth);
1720 void sync_order_keys ();
1722 static bool _disable_all_loaded_plugins;
1725 } // namespace ARDOUR
1727 #endif /* __ardour_session_h__ */