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;
510 int set_smpte_format (SmpteFormat);
511 void sync_time_vars();
513 void bbt_time (nframes_t when, BBT_Time&);
514 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
515 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
516 void smpte_time (SMPTE::Time &);
517 void smpte_time (nframes_t when, SMPTE::Time&);
518 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
520 void smpte_duration (nframes_t, SMPTE::Time&) const;
521 void smpte_duration_string (char *, nframes_t) const;
523 void set_smpte_offset (nframes_t);
524 nframes_t smpte_offset () const { return _smpte_offset; }
525 void set_smpte_offset_negative (bool);
526 bool smpte_offset_negative () const { return _smpte_offset_negative; }
528 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
530 static sigc::signal<void> StartTimeChanged;
531 static sigc::signal<void> EndTimeChanged;
532 static sigc::signal<void> SMPTEOffsetChanged;
534 void request_slave_source (SlaveSource);
535 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
537 float transport_speed() const { return _transport_speed; }
538 bool transport_stopped() const { return _transport_speed == 0.0f; }
539 bool transport_rolling() const { return _transport_speed != 0.0f; }
541 void set_silent (bool yn);
542 bool silent () { return _silent; }
544 int jack_slave_sync (nframes_t);
546 TempoMap& tempo_map() { return *_tempo_map; }
550 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionAdded;
551 sigc::signal<void,boost::weak_ptr<AudioRegion> > AudioRegionRemoved;
553 int region_name (string& result, string base = string(""), bool newlevel = false) const;
554 string new_region_name (string);
555 string path_from_region_name (string name, string identifier);
557 boost::shared_ptr<AudioRegion> find_whole_file_parent (boost::shared_ptr<AudioRegion const>);
558 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
560 boost::shared_ptr<AudioRegion> XMLRegionFactory (const XMLNode&, bool full);
562 template<class T> void foreach_audio_region (T *obj, void (T::*func)(boost::shared_ptr<AudioRegion>));
564 /* source management */
566 struct import_status : public InterThreadInfo {
572 volatile bool freeze;
573 std::vector<Glib::ustring> paths;
580 int import_audiofile (import_status&);
581 bool sample_rate_convert (import_status&, string infile, string& outfile);
582 string build_tmp_convert_name (string file);
584 SlaveSource post_export_slave;
585 nframes_t post_export_position;
587 int start_audio_export (ARDOUR::AudioExportSpecification&);
588 int stop_audio_export (ARDOUR::AudioExportSpecification&);
589 void finalize_audio_export ();
591 void add_source (boost::shared_ptr<Source>);
592 void remove_source (boost::weak_ptr<Source>);
594 struct cleanup_report {
595 vector<string> paths;
599 int cleanup_sources (cleanup_report&);
600 int cleanup_trash_sources (cleanup_report&);
602 int destroy_region (boost::shared_ptr<Region>);
603 int destroy_regions (std::list<boost::shared_ptr<Region> >);
605 int remove_last_capture ();
607 /* handlers should return -1 for "stop cleanup", 0 for
608 "yes, delete this playlist" and 1 for "no, don't delete
612 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
614 /* handlers should return !0 for use pending state, 0 for
618 static sigc::signal<int> AskAboutPendingState;
620 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
622 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
623 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
625 /* playlist management */
627 boost::shared_ptr<Playlist> playlist_by_name (string name);
628 void add_playlist (boost::shared_ptr<Playlist>);
629 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
630 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
632 uint32_t n_playlists() const;
634 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
635 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
637 /* named selections */
639 NamedSelection* named_selection_by_name (string name);
640 void add_named_selection (NamedSelection *);
641 void remove_named_selection (NamedSelection *);
643 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
644 sigc::signal<void> NamedSelectionAdded;
645 sigc::signal<void> NamedSelectionRemoved;
647 /* Curves and AutomationLists (TODO when they go away) */
648 void add_curve(Curve*);
649 void add_automation_list(AutomationList*);
653 float get_default_fade_length () const { return default_fade_msecs; }
654 float get_default_fade_steepness () const { return default_fade_steepness; }
655 void set_default_fade (float steepness, float msecs);
659 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
660 void audition_playlist ();
661 void audition_region (boost::shared_ptr<Region>);
662 void cancel_audition ();
663 bool is_auditioning () const;
665 sigc::signal<void,bool> AuditionActive;
667 /* flattening stuff */
669 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite, vector<boost::shared_ptr<AudioSource> >&,
670 InterThreadInfo& wot);
671 int freeze (InterThreadInfo&);
673 /* session-wide solo/mute/rec-enable */
675 bool soloing() const { return currently_soloing; }
677 void set_all_solo (bool);
678 void set_all_mute (bool);
680 sigc::signal<void,bool> SoloActive;
681 sigc::signal<void> SoloChanged;
683 void record_disenable_all ();
684 void record_enable_all ();
686 /* control/master out */
688 boost::shared_ptr<IO> control_out() const { return _control_out; }
689 boost::shared_ptr<IO> master_out() const { return _master_out; }
691 /* insert/send management */
693 uint32_t n_port_inserts() const { return _port_inserts.size(); }
694 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
695 uint32_t n_sends() const { return _sends.size(); }
697 uint32_t next_send_id();
698 uint32_t next_insert_id();
699 void mark_send_id (uint32_t);
700 void mark_insert_id (uint32_t);
702 /* s/w "RAID" management */
704 nframes_t available_capture_duration();
706 /* I/O Connections */
708 template<class T> void foreach_connection (T *obj, void (T::*func)(Connection *));
709 void add_connection (Connection *);
710 void remove_connection (Connection *);
711 Connection *connection_by_name (string) const;
713 sigc::signal<void,Connection *> ConnectionAdded;
714 sigc::signal<void,Connection *> ConnectionRemoved;
718 int set_mtc_port (string port_tag);
719 int set_mmc_port (string port_tag);
720 int set_midi_port (string port_tag);
721 MIDI::Port *mtc_port() const { return _mtc_port; }
722 MIDI::Port *mmc_port() const { return _mmc_port; }
723 MIDI::Port *midi_port() const { return _midi_port; }
725 sigc::signal<void> MTC_PortChanged;
726 sigc::signal<void> MMC_PortChanged;
727 sigc::signal<void> MIDI_PortChanged;
729 void set_trace_midi_input (bool, MIDI::Port* port = 0);
730 void set_trace_midi_output (bool, MIDI::Port* port = 0);
732 bool get_trace_midi_input(MIDI::Port *port = 0);
733 bool get_trace_midi_output(MIDI::Port *port = 0);
735 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
737 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
739 void set_mmc_receive_device_id (uint32_t id);
740 void set_mmc_send_device_id (uint32_t id);
744 void start_scrub (nframes_t where);
746 void set_scrub_speed (float);
747 nframes_t scrub_buffer_size() const;
748 sigc::signal<void> ScrubReady;
750 /* History (for editors, mixers, UIs etc.) */
752 void undo (uint32_t n) {
756 void redo (uint32_t n) {
760 UndoHistory& history() { return _history; }
762 uint32_t undo_depth() const { return _history.undo_depth(); }
763 uint32_t redo_depth() const { return _history.redo_depth(); }
764 string next_undo() const { return _history.next_undo(); }
765 string next_redo() const { return _history.next_redo(); }
767 void begin_reversible_command (string cmd_name);
768 void commit_reversible_command (Command* cmd = 0);
770 void add_command (Command *const cmd) {
771 current_trans->add_command (cmd);
774 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
776 // these commands are implemented in libs/ardour/session_command.cc
777 Command* memento_command_factory(XMLNode* n);
778 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
780 Command* global_state_command_factory (const XMLNode& n);
782 class GlobalRouteStateCommand : public Command
785 GlobalRouteStateCommand (Session&, void*);
786 GlobalRouteStateCommand (Session&, const XMLNode& node);
787 int set_state (const XMLNode&);
788 XMLNode& get_state ();
791 GlobalRouteBooleanState before, after;
797 class GlobalSoloStateCommand : public GlobalRouteStateCommand
800 GlobalSoloStateCommand (Session &, void *src);
801 GlobalSoloStateCommand (Session&, const XMLNode&);
802 void operator()(); //redo
804 XMLNode &get_state();
808 class GlobalMuteStateCommand : public GlobalRouteStateCommand
811 GlobalMuteStateCommand(Session &, void *src);
812 GlobalMuteStateCommand (Session&, const XMLNode&);
813 void operator()(); // redo
815 XMLNode &get_state();
819 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
822 GlobalRecordEnableStateCommand(Session &, void *src);
823 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
824 void operator()(); // redo
826 XMLNode &get_state();
830 class GlobalMeteringStateCommand : public Command
833 GlobalMeteringStateCommand(Session &, void *src);
834 GlobalMeteringStateCommand (Session&, const XMLNode&);
837 XMLNode &get_state();
838 int set_state (const XMLNode&);
844 GlobalRouteMeterState before;
845 GlobalRouteMeterState after;
850 boost::shared_ptr<IO> click_io() { return _click_io; }
852 /* disk, buffer loads */
854 uint32_t playback_load ();
855 uint32_t capture_load ();
856 uint32_t playback_load_min ();
857 uint32_t capture_load_min ();
859 void reset_playback_load_min ();
860 void reset_capture_load_min ();
862 float read_data_rate () const;
863 float write_data_rate () const;
867 void set_audio_range (list<AudioRange>&);
868 void set_music_range (list<MusicRange>&);
870 void request_play_range (bool yn);
871 bool get_play_range () const { return _play_range; }
874 typedef vector<string> FavoriteDirs;
876 static int read_favorite_dirs (FavoriteDirs&);
878 static int write_favorite_dirs (FavoriteDirs&);
882 static const char* template_suffix() { return _template_suffix; }
883 static const char* statefile_suffix() { return _statefile_suffix; }
884 static const char* pending_suffix() { return _pending_suffix; }
886 /* buffers for gain and pan */
888 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
889 pan_t** pan_automation_buffer() const { return _pan_automation_buffer; }
891 /* buffers for conversion */
900 static long vst_callback (AEffect* effect,
907 typedef float (*compute_peak_t) (Sample *, nframes_t, float);
908 typedef void (*find_peaks_t) (Sample *, nframes_t, float *, float*);
909 typedef void (*apply_gain_to_buffer_t) (Sample *, nframes_t, float);
910 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, nframes_t, float);
911 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, nframes_t);
913 static compute_peak_t compute_peak;
914 static find_peaks_t find_peaks;
915 static apply_gain_to_buffer_t apply_gain_to_buffer;
916 static mix_buffers_with_gain_t mix_buffers_with_gain;
917 static mix_buffers_no_gain_t mix_buffers_no_gain;
919 static sigc::signal<void> SendFeedback;
923 PBD::Controllable* controllable_by_id (const PBD::ID&);
925 void add_controllable (PBD::Controllable*);
926 void remove_controllable (PBD::Controllable*);
929 friend class AudioEngine;
930 void set_block_size (nframes_t nframes);
931 void set_frame_rate (nframes_t nframes);
934 friend class Diskstream;
936 void wait_till_butler_finished();
940 void schedule_curve_reallocation ();
941 void update_latency_compensation (bool, bool);
944 int create (bool& new_session, const string& mix_template, nframes_t initial_length);
947 nframes_t compute_initial_length ();
949 static const char* _template_suffix;
950 static const char* _statefile_suffix;
951 static const char* _pending_suffix;
954 PendingDeclickIn = 0x1,
955 PendingDeclickOut = 0x2,
956 StopPendingCapture = 0x4,
957 AutoReturning = 0x10,
958 PendingLocate = 0x20,
959 PendingSetLoop = 0x40
962 /* stuff used in process() should be close together to
966 typedef void (Session::*process_function_type)(nframes_t);
968 AudioEngine &_engine;
969 mutable gint processing_prohibited;
970 process_function_type process_function;
971 process_function_type last_process_function;
972 bool waiting_for_sync_offset;
973 nframes_t _base_frame_rate;
974 nframes_t _current_frame_rate; //this includes video pullup offset
975 int transport_sub_state;
976 mutable gint _record_status;
977 nframes_t _transport_frame;
978 Location* end_location;
979 Location* start_location;
982 volatile float _transport_speed;
983 volatile float _desired_transport_speed;
984 float _last_transport_speed;
985 bool auto_play_legal;
986 nframes_t _last_slave_transport_frame;
987 nframes_t maximum_output_latency;
988 nframes_t last_stop_frame;
989 nframes64_t requested_return_frame;
990 vector<Sample *> _passthru_buffers;
991 vector<Sample *> _silent_buffers;
992 vector<Sample *> _send_buffers;
993 nframes_t current_block_size;
994 nframes_t _worst_output_latency;
995 nframes_t _worst_input_latency;
996 nframes_t _worst_track_latency;
999 float _meter_falloff;
1000 bool _end_location_is_free;
1002 void set_worst_io_latencies ();
1003 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1004 set_worst_io_latencies ();
1007 void update_latency_compensation_proxy (void* ignored);
1009 void ensure_passthru_buffers (uint32_t howmany);
1011 void process_scrub (nframes_t);
1012 void process_without_events (nframes_t);
1013 void process_with_events (nframes_t);
1014 void process_audition (nframes_t);
1015 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1017 /* slave tracking */
1019 static const int delta_accumulator_size = 25;
1020 int delta_accumulator_cnt;
1021 long delta_accumulator[delta_accumulator_size];
1022 long average_slave_delta;
1024 bool have_first_delta_accumulator;
1032 SlaveState slave_state;
1033 nframes_t slave_wait_end;
1035 void reset_slave_state ();
1036 bool follow_slave (nframes_t, nframes_t);
1037 void set_slave_source (SlaveSource);
1040 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1042 void prepare_diskstreams ();
1043 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1044 int process_routes (nframes_t, nframes_t);
1045 int silent_process_routes (nframes_t, nframes_t);
1047 bool get_rec_monitors_input () {
1048 if (actively_recording()) {
1051 if (Config->get_auto_input()) {
1059 int get_transport_declick_required () {
1061 if (transport_sub_state & PendingDeclickIn) {
1062 transport_sub_state &= ~PendingDeclickIn;
1064 } else if (transport_sub_state & PendingDeclickOut) {
1071 bool maybe_stop (nframes_t limit) {
1072 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1079 bool maybe_sync_start (nframes_t&, nframes_t&);
1081 void check_declick_out ();
1083 MIDI::MachineControl* mmc;
1084 MIDI::Port* _mmc_port;
1085 MIDI::Port* _mtc_port;
1086 MIDI::Port* _midi_port;
1089 bool session_send_mmc;
1090 bool session_send_mtc;
1091 bool session_midi_feedback;
1094 nframes_t last_loopend;
1096 RingBuffer<Event*> pending_events;
1099 void when_engine_running ();
1100 void graph_reordered ();
1102 string _current_snapshot_name;
1104 XMLTree* state_tree;
1105 bool state_was_pending;
1106 StateOfTheState _state_of_the_state;
1109 int load_options (const XMLNode&);
1110 XMLNode& get_options () const;
1111 int load_state (string snapshot_name);
1112 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1114 nframes_t _last_roll_location;
1115 nframes_t _last_record_location;
1116 bool pending_locate_roll;
1117 nframes_t pending_locate_frame;
1119 bool pending_locate_flush;
1121 bool pending_auto_loop;
1123 Sample* butler_mixdown_buffer;
1124 float* butler_gain_buffer;
1125 pthread_t butler_thread;
1126 Glib::Mutex butler_request_lock;
1127 Glib::Cond butler_paused;
1128 bool butler_should_run;
1129 mutable gint butler_should_do_transport_work;
1130 int butler_request_pipe[2];
1132 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1134 struct ButlerRequest {
1143 enum PostTransportWork {
1144 PostTransportStop = 0x1,
1145 PostTransportDisableRecord = 0x2,
1146 PostTransportPosition = 0x8,
1147 PostTransportDidRecord = 0x20,
1148 PostTransportDuration = 0x40,
1149 PostTransportLocate = 0x80,
1150 PostTransportRoll = 0x200,
1151 PostTransportAbort = 0x800,
1152 PostTransportOverWrite = 0x1000,
1153 PostTransportSpeed = 0x2000,
1154 PostTransportAudition = 0x4000,
1155 PostTransportScrub = 0x8000,
1156 PostTransportReverse = 0x10000,
1157 PostTransportInputChange = 0x20000,
1158 PostTransportCurveRealloc = 0x40000
1161 static const PostTransportWork ProcessCannotProceedMask =
1162 PostTransportWork (PostTransportInputChange|
1164 PostTransportReverse|
1165 PostTransportCurveRealloc|
1167 PostTransportAudition|
1168 PostTransportLocate|
1171 PostTransportWork post_transport_work;
1173 void summon_butler ();
1174 void schedule_butler_transport_work ();
1175 int start_butler_thread ();
1176 void terminate_butler_thread ();
1177 static void *_butler_thread_work (void *arg);
1178 void* butler_thread_work ();
1180 uint32_t cumulative_rf_motion;
1183 void set_rf_speed (float speed);
1184 void reset_rf_scale (nframes_t frames_moved);
1186 Locations _locations;
1187 void locations_changed ();
1188 void locations_added (Location*);
1189 void handle_locations_changed (Locations::LocationList&);
1191 sigc::connection auto_punch_start_changed_connection;
1192 sigc::connection auto_punch_end_changed_connection;
1193 sigc::connection auto_punch_changed_connection;
1194 void auto_punch_start_changed (Location *);
1195 void auto_punch_end_changed (Location *);
1196 void auto_punch_changed (Location *);
1198 sigc::connection auto_loop_start_changed_connection;
1199 sigc::connection auto_loop_end_changed_connection;
1200 sigc::connection auto_loop_changed_connection;
1201 void auto_loop_changed (Location *);
1203 typedef list<Event *> Events;
1205 Events immediate_events;
1206 Events::iterator next_event;
1208 /* there can only ever be one of each of these */
1210 Event *auto_loop_event;
1211 Event *punch_out_event;
1212 Event *punch_in_event;
1216 void dump_events () const;
1217 void queue_event (Event *ev);
1218 void merge_event (Event*);
1219 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1220 bool _replace_event (Event*);
1221 bool _remove_event (Event *);
1222 void _clear_event_type (Event::Type);
1224 void first_stage_init (string path, string snapshot_name);
1225 int second_stage_init (bool new_tracks);
1226 void find_current_end ();
1227 void remove_empty_sounds ();
1229 void setup_midi_control ();
1230 int midi_read (MIDI::Port *);
1232 void enable_record ();
1234 void increment_transport_position (uint32_t val) {
1235 if (max_frames - val < _transport_frame) {
1236 _transport_frame = max_frames;
1238 _transport_frame += val;
1242 void decrement_transport_position (uint32_t val) {
1243 if (val < _transport_frame) {
1244 _transport_frame -= val;
1246 _transport_frame = 0;
1250 void post_transport_motion ();
1251 static void *session_loader_thread (void *arg);
1255 void set_next_event ();
1256 void process_event (Event *);
1258 /* MIDI Machine Control */
1260 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1261 void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1262 void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1264 void spp_start (MIDI::Parser&);
1265 void spp_continue (MIDI::Parser&);
1266 void spp_stop (MIDI::Parser&);
1268 void mmc_deferred_play (MIDI::MachineControl &);
1269 void mmc_stop (MIDI::MachineControl &);
1270 void mmc_step (MIDI::MachineControl &, int);
1271 void mmc_pause (MIDI::MachineControl &);
1272 void mmc_record_pause (MIDI::MachineControl &);
1273 void mmc_record_strobe (MIDI::MachineControl &);
1274 void mmc_record_exit (MIDI::MachineControl &);
1275 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1276 void mmc_fast_forward (MIDI::MachineControl &);
1277 void mmc_rewind (MIDI::MachineControl &);
1278 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1279 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1280 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1282 struct timeval last_mmc_step;
1285 typedef sigc::slot<bool> MidiTimeoutCallback;
1286 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1288 MidiTimeoutList midi_timeouts;
1289 bool mmc_step_timeout ();
1291 MIDI::byte mmc_buffer[32];
1292 MIDI::byte mtc_msg[16];
1293 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1294 MIDI::byte midi_msg[16];
1295 nframes_t outbound_mtc_smpte_frame;
1296 SMPTE::Time transmitting_smpte_time;
1297 int next_quarter_frame_to_send;
1299 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1300 nframes_t _frames_per_hour;
1301 nframes_t _smpte_frames_per_hour;
1302 nframes_t _smpte_offset;
1303 bool _smpte_offset_negative;
1305 /* cache the most-recently requested time conversions.
1306 this helps when we have multiple clocks showing the
1307 same time (e.g. the transport frame)
1310 bool last_smpte_valid;
1311 nframes_t last_smpte_when;
1312 SMPTE::Time last_smpte;
1314 int send_full_time_code ();
1315 int send_midi_time_code ();
1317 void send_full_time_code_in_another_thread ();
1318 void send_midi_time_code_in_another_thread ();
1319 void send_time_code_in_another_thread (bool full);
1320 void send_mmc_in_another_thread (MIDI::MachineControl::Command, nframes_t frame = 0);
1322 nframes_t adjust_apparent_position (nframes_t frames);
1324 void reset_record_status ();
1326 int no_roll (nframes_t nframes, nframes_t offset);
1328 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1329 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1331 struct MIDIRequest {
1344 MIDI::MachineControl::Command mmc_cmd;
1345 nframes_t locate_frame;
1347 // for SendMessage type
1350 MIDI::channel_t chan;
1352 MIDI::EventTwoBytes data;
1363 void *operator new(size_t ignored) {
1364 return pool.alloc ();
1367 void operator delete(void *ptr, size_t size) {
1372 static MultiAllocSingleReleasePool pool;
1375 Glib::Mutex midi_lock;
1376 pthread_t midi_thread;
1377 int midi_request_pipe[2];
1378 mutable gint butler_active;
1379 RingBuffer<MIDIRequest*> midi_requests;
1381 int start_midi_thread ();
1382 void terminate_midi_thread ();
1383 void poke_midi_thread ();
1384 static void *_midi_thread_work (void *arg);
1385 void midi_thread_work ();
1386 void change_midi_ports ();
1387 int use_config_midi_ports ();
1389 bool waiting_to_start;
1391 void set_play_loop (bool yn);
1392 void overwrite_some_buffers (Diskstream*);
1393 void flush_all_redirects ();
1394 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1395 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1396 void force_locate (nframes_t frame, bool with_roll = false);
1397 void set_diskstream_speed (Diskstream*, float speed);
1398 void set_transport_speed (float speed, bool abort = false);
1399 void stop_transport (bool abort = false);
1400 void start_transport ();
1401 void actually_start_transport ();
1402 void realtime_stop (bool abort);
1403 void non_realtime_start_scrub ();
1404 void non_realtime_set_speed ();
1405 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1406 void non_realtime_overwrite (int entry_request_count, bool& finished);
1407 void butler_transport_work ();
1408 void post_transport ();
1409 void engine_halted ();
1410 void xrun_recovery ();
1412 TempoMap *_tempo_map;
1413 void tempo_map_changed (Change);
1415 /* edit/mix groups */
1417 int load_route_groups (const XMLNode&, bool is_edit);
1418 int load_edit_groups (const XMLNode&);
1419 int load_mix_groups (const XMLNode&);
1422 list<RouteGroup *> edit_groups;
1423 list<RouteGroup *> mix_groups;
1427 SerializedRCUManager<DiskstreamList> diskstreams;
1429 uint32_t dstream_buffer_size;
1430 int load_diskstreams (const XMLNode&);
1434 SerializedRCUManager<RouteList> routes;
1436 void add_routes (RouteList&, bool save = true);
1437 uint32_t destructive_index;
1439 int load_routes (const XMLNode&);
1440 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1444 bool solo_update_disabled;
1445 bool currently_soloing;
1447 void route_mute_changed (void *src);
1448 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1449 void catch_up_on_solo ();
1450 void update_route_solo_state ();
1451 void modify_solo_mute (bool, bool);
1452 void strip_portname_for_solo (string& portname);
1454 /* REGION MANAGEMENT */
1456 mutable Glib::Mutex region_lock;
1457 typedef map<PBD::ID,boost::shared_ptr<AudioRegion> > AudioRegionList;
1458 AudioRegionList audio_regions;
1460 void add_region (boost::shared_ptr<Region>);
1461 void region_changed (Change, boost::weak_ptr<Region>);
1462 void remove_region (boost::weak_ptr<Region>);
1464 int load_regions (const XMLNode& node);
1468 mutable Glib::Mutex audio_source_lock;
1469 typedef std::map<PBD::ID,boost::shared_ptr<AudioSource> > AudioSourceList;
1471 AudioSourceList audio_sources;
1473 int load_sources (const XMLNode& node);
1474 XMLNode& get_sources_as_xml ();
1476 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1480 mutable Glib::Mutex playlist_lock;
1481 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1482 PlaylistList playlists;
1483 PlaylistList unused_playlists;
1485 int load_playlists (const XMLNode&);
1486 int load_unused_playlists (const XMLNode&);
1487 void remove_playlist (boost::weak_ptr<Playlist>);
1488 void track_playlist (bool, boost::weak_ptr<Playlist>);
1490 boost::shared_ptr<Playlist> playlist_factory (string name);
1491 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1493 void playlist_length_changed ();
1494 void diskstream_playlist_changed (boost::weak_ptr<Diskstream>);
1496 /* NAMED SELECTIONS */
1498 mutable Glib::Mutex named_selection_lock;
1499 typedef set<NamedSelection *> NamedSelectionList;
1500 NamedSelectionList named_selections;
1502 int load_named_selections (const XMLNode&);
1504 NamedSelection *named_selection_factory (string name);
1505 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1507 /* CURVES and AUTOMATION LISTS */
1508 std::map<PBD::ID, Curve*> curves;
1509 std::map<PBD::ID, AutomationList*> automation_lists;
1511 /* DEFAULT FADE CURVES */
1513 float default_fade_steepness;
1514 float default_fade_msecs;
1518 boost::shared_ptr<Auditioner> auditioner;
1519 void set_audition (boost::shared_ptr<Region>);
1520 void non_realtime_set_audition ();
1521 boost::shared_ptr<Region> pending_audition_region;
1527 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1529 /* INSERT AND SEND MANAGEMENT */
1531 list<PortInsert *> _port_inserts;
1532 list<PluginInsert *> _plugin_inserts;
1533 list<Send *> _sends;
1534 boost::dynamic_bitset<uint32_t> send_bitset;
1535 boost::dynamic_bitset<uint32_t> insert_bitset;
1537 uint32_t insert_cnt;
1540 void add_redirect (Redirect *);
1541 void remove_redirect (Redirect *);
1545 struct space_and_path {
1546 uint32_t blocks; /* 4kB blocks */
1554 struct space_and_path_ascending_cmp {
1555 bool operator() (space_and_path a, space_and_path b) {
1556 return a.blocks > b.blocks;
1560 void setup_raid_path (string path);
1562 vector<space_and_path> session_dirs;
1563 vector<space_and_path>::iterator last_rr_session_dir;
1564 uint32_t _total_free_4k_blocks;
1565 Glib::Mutex space_lock;
1567 static const char* old_sound_dir_name;
1568 static const char* sound_dir_name;
1569 static const char* dead_sound_dir_name;
1570 static const char* interchange_dir_name;
1571 static const char* peak_dir_name;
1572 static const char* export_dir_name;
1574 string old_sound_dir (bool with_path = true) const;
1575 string discover_best_sound_dir (bool destructive = false);
1576 int ensure_sound_dir (string, string&);
1577 void refresh_disk_space ();
1579 mutable gint _playback_load;
1580 mutable gint _capture_load;
1581 mutable gint _playback_load_min;
1582 mutable gint _capture_load_min;
1584 /* I/O Connections */
1586 typedef list<Connection *> ConnectionList;
1587 mutable Glib::Mutex connection_lock;
1588 ConnectionList _connections;
1589 int load_connections (const XMLNode&);
1591 void reverse_diskstream_buffers ();
1593 UndoHistory _history;
1594 UndoTransaction* current_trans;
1596 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1597 GlobalRouteMeterState get_global_route_metering ();
1599 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1600 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1602 void set_global_mute (GlobalRouteBooleanState s, void *src);
1603 void set_global_solo (GlobalRouteBooleanState s, void *src);
1604 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1606 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1607 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1608 void reset_jack_connection (jack_client_t* jack);
1609 void record_enable_change_all (bool yn);
1611 XMLNode& state(bool);
1621 Click (nframes_t s, nframes_t d, const Sample *b)
1622 : start (s), duration (d), data (b) { offset = 0; }
1624 void *operator new(size_t ignored) {
1625 return pool.alloc ();
1628 void operator delete(void *ptr, size_t size) {
1636 typedef list<Click*> Clicks;
1640 boost::shared_ptr<IO> _click_io;
1642 Sample* click_emphasis_data;
1643 nframes_t click_length;
1644 nframes_t click_emphasis_length;
1645 mutable Glib::RWLock click_lock;
1647 static const Sample default_click[];
1648 static const nframes_t default_click_length;
1649 static const Sample default_click_emphasis[];
1650 static const nframes_t default_click_emphasis_length;
1653 void setup_click_sounds (int which);
1654 void clear_clicks ();
1655 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1657 vector<Route*> master_outs;
1659 /* range playback */
1661 list<AudioRange> current_audio_range;
1663 void set_play_range (bool yn);
1664 void setup_auto_play ();
1669 boost::shared_ptr<IO> _master_out;
1670 boost::shared_ptr<IO> _control_out;
1672 gain_t* _gain_automation_buffer;
1673 pan_t** _pan_automation_buffer;
1674 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1675 uint32_t _npan_buffers;
1679 long _vst_callback (VSTPlugin*,
1686 /* number of hardware audio ports we're using,
1687 based on max (requested,available)
1690 uint32_t n_physical_audio_outputs;
1691 uint32_t n_physical_audio_inputs;
1693 int find_all_sources (std::string path, std::set<std::string>& result);
1694 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1696 LayerModel layer_model;
1697 CrossfadeModel xfade_model;
1699 typedef std::set<PBD::Controllable*> Controllables;
1700 Glib::Mutex controllables_lock;
1701 Controllables controllables;
1703 void reset_native_file_format();
1704 bool first_file_data_format_reset;
1705 bool first_file_header_format_reset;
1707 void config_changed (const char*);
1709 XMLNode& get_control_protocol_state ();
1711 void set_history_depth (uint32_t depth);
1712 void sync_order_keys ();
1715 } // namespace ARDOUR
1717 #endif /* __ardour_session_h__ */