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/scoped_ptr.hpp>
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>
58 #include <ardour/smpte.h>
85 class AudioDiskstream;
87 class AudioFileSource;
104 class ControlProtocolInfo;
110 class SessionDirectory;
112 struct ExportSpecification;
120 class Session : public PBD::StatefulDestructible
123 typedef std::pair<boost::weak_ptr<Route>,bool> RouteBooleanState;
124 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
125 typedef std::pair<boost::weak_ptr<Route>,MeterPoint> RouteMeterState;
126 typedef vector<RouteMeterState> GlobalRouteMeterState;
150 InputConfigurationChange,
154 /* only one of each of these events
155 can be queued at any one time
171 nframes_t action_frame;
172 nframes_t target_frame;
178 nframes_t target2_frame;
183 boost::shared_ptr<Region> region;
185 list<AudioRange> audio_range;
186 list<MusicRange> music_range;
188 Event(Type t, Action a, nframes_t when, nframes_t where, float spd, bool yn = false)
192 target_frame (where),
196 void set_ptr (void* p) {
200 bool before (const Event& other) const {
201 return action_frame < other.action_frame;
204 bool after (const Event& other) const {
205 return action_frame > other.action_frame;
208 static bool compare (const Event *e1, const Event *e2) {
209 return e1->before (*e2);
212 void *operator new (size_t ignored) {
213 return pool.alloc ();
216 void operator delete(void *ptr, size_t size) {
220 static const nframes_t Immediate = 0;
223 static MultiAllocSingleReleasePool pool;
226 /* creating from an XML file */
228 Session (AudioEngine&,
229 const string& fullpath,
230 const string& snapshot_name,
231 string mix_template = "");
233 /* creating a new Session */
235 Session (AudioEngine&,
237 string snapshot_name,
238 AutoConnectOption input_auto_connect,
239 AutoConnectOption output_auto_connect,
240 uint32_t control_out_channels,
241 uint32_t master_out_channels,
242 uint32_t n_physical_in,
243 uint32_t n_physical_out,
244 nframes_t initial_length);
248 string path() const { return _path; }
249 string name() const { return _name; }
250 string snap_name() const { return _current_snapshot_name; }
251 string raid_path () const;
253 void set_snap_name ();
257 bool dirty() const { return _state_of_the_state & Dirty; }
258 void set_deletion_in_progress ();
259 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
260 sigc::signal<void> DirtyChanged;
262 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
264 std::string automation_dir () const;
265 std::string analysis_dir() const;
267 int ensure_subdirs ();
269 Glib::ustring peak_path (Glib::ustring) const;
271 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
272 static string change_midi_path_by_name (string oldpath, string oldname, string newname, bool destructive);
274 string peak_path_from_audio_path (string) const;
275 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
276 string midi_path_from_name (string);
278 void process (nframes_t nframes);
280 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
281 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
282 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
284 void add_diskstream (boost::shared_ptr<Diskstream>);
285 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
286 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
288 bool have_captured() const { return _have_captured; }
290 void refill_all_diskstream_buffers ();
291 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
293 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
294 uint32_t n_diskstreams() const;
296 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
297 typedef std::list<boost::shared_ptr<Route> > RouteList;
299 boost::shared_ptr<RouteList> get_routes() const {
300 return routes.reader ();
303 uint32_t nroutes() const { return routes.reader()->size(); }
304 uint32_t ntracks () const;
305 uint32_t nbusses () const;
307 struct RoutePublicOrderSorter {
308 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
311 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
312 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
313 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
315 boost::shared_ptr<Route> route_by_name (string);
316 boost::shared_ptr<Route> route_by_id (PBD::ID);
317 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
319 bool route_name_unique (string) const;
321 bool get_record_enabled() const {
322 return (record_status () >= Enabled);
325 RecordState record_status() const {
326 return (RecordState) g_atomic_int_get (&_record_status);
329 bool actively_recording () {
330 return record_status() == Recording;
333 bool record_enabling_legal () const;
334 void maybe_enable_record ();
335 void disable_record (bool rt_context, bool force = false);
336 void step_back_from_record ();
338 void maybe_write_autosave ();
340 /* Proxy signal for region hidden changes */
342 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
344 /* Emitted when all i/o connections are complete */
346 sigc::signal<void> IOConnectionsComplete;
348 /* Record status signals */
350 sigc::signal<void> RecordStateChanged;
352 /* Transport mechanism signals */
354 sigc::signal<void> TransportStateChange; /* generic */
355 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
356 sigc::signal<void> DurationChanged;
357 sigc::signal<void,nframes_t> Xrun;
358 sigc::signal<void> TransportLooped;
360 sigc::signal<void,RouteList&> RouteAdded;
362 void request_roll_at_and_return (nframes_t start, nframes_t return_to);
363 void request_bounded_roll (nframes_t start, nframes_t end);
364 void request_stop (bool abort = false);
365 void request_locate (nframes_t frame, bool with_roll = false);
367 void request_play_loop (bool yn);
368 bool get_play_loop () const { return play_loop; }
370 nframes_t last_transport_start() const { return _last_roll_location; }
371 void goto_end () { request_locate (end_location->start(), false);}
372 void goto_start () { request_locate (start_location->start(), false); }
373 void set_session_start (nframes_t start) { start_location->set_start(start); }
374 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
375 void use_rf_shuttle_speed ();
376 void allow_auto_play (bool yn);
377 void request_transport_speed (float speed);
378 void request_overwrite_buffer (Diskstream*);
379 void request_diskstream_speed (Diskstream&, float speed);
380 void request_input_change_handling ();
382 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
383 bool transport_locked () const;
386 //int wipe_diskstream (AudioDiskstream *);
388 int remove_region_from_region_list (boost::shared_ptr<Region>);
390 nframes_t get_maximum_extent () const;
391 nframes_t current_end_frame() const { return end_location->start(); }
392 nframes_t current_start_frame() const { return start_location->start(); }
393 // "actual" sample rate of session, set by current audioengine rate, pullup/down etc.
394 nframes_t frame_rate() const { return _current_frame_rate; }
395 // "native" sample rate of session, regardless of current audioengine rate, pullup/down etc
396 nframes_t nominal_frame_rate() const { return _nominal_frame_rate; }
397 nframes_t frames_per_hour() const { return _frames_per_hour; }
399 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
400 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
402 float smpte_frames_per_second() const;
403 bool smpte_drop_frames() const;
407 Locations *locations() { return &_locations; }
409 sigc::signal<void,Location*> auto_loop_location_changed;
410 sigc::signal<void,Location*> auto_punch_location_changed;
411 sigc::signal<void> locations_modified;
413 void set_auto_punch_location (Location *);
414 void set_auto_loop_location (Location *);
415 int location_name(string& result, string base = string(""));
417 void reset_input_monitor_state ();
419 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
420 void remove_event (nframes_t frame, Event::Type type);
421 void clear_events (Event::Type type);
423 nframes_t get_block_size() const { return current_block_size; }
424 nframes_t worst_output_latency () const { return _worst_output_latency; }
425 nframes_t worst_input_latency () const { return _worst_input_latency; }
426 nframes_t worst_track_latency () const { return _worst_track_latency; }
428 int save_state (string snapshot_name, bool pending = false);
429 int restore_state (string snapshot_name);
430 int save_template (string template_name);
431 int save_history (string snapshot_name = "");
432 int restore_history (string snapshot_name);
433 void remove_state (string snapshot_name);
434 void rename_state (string old_name, string new_name);
435 void remove_pending_capture_state ();
437 sigc::signal<void,string> StateSaved;
438 sigc::signal<void> StateReady;
440 vector<string*>* possible_states() const;
441 static vector<string*>* possible_states(string path);
443 XMLNode& get_state();
444 int set_state(const XMLNode& node); // not idempotent
445 XMLNode& get_template();
447 /// The instant xml file is written to the session directory
448 void add_instant_xml (XMLNode&);
449 XMLNode * instant_xml (const std::string& str);
451 enum StateOfTheState {
456 InitialConnecting = 0x8,
461 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
463 RouteGroup* add_edit_group (string);
464 RouteGroup* add_mix_group (string);
466 void remove_edit_group (RouteGroup&);
467 void remove_mix_group (RouteGroup&);
469 RouteGroup *mix_group_by_name (string);
470 RouteGroup *edit_group_by_name (string);
472 sigc::signal<void,RouteGroup*> edit_group_added;
473 sigc::signal<void,RouteGroup*> mix_group_added;
474 sigc::signal<void> edit_group_removed;
475 sigc::signal<void> mix_group_removed;
477 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
478 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
483 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
484 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
489 /* fundamental operations. duh. */
491 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
492 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
494 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (TrackMode mode = Normal, uint32_t how_many = 1);
495 //boost::shared_ptr<Route> new_midi_route (uint32_t how_many = 1);
497 void remove_route (boost::shared_ptr<Route>);
498 void resort_routes ();
499 void resort_routes_using (boost::shared_ptr<RouteList>);
501 void set_remote_control_ids();
503 AudioEngine & engine() { return _engine; }
504 AudioEngine const & engine () const { return _engine; }
511 nframes_t transport_frame () const {return _transport_frame; }
512 nframes_t audible_frame () const;
513 nframes64_t requested_return_frame() const { return _requested_return_frame; }
527 int set_smpte_format (SmpteFormat);
528 void sync_time_vars();
530 void bbt_time (nframes_t when, BBT_Time&);
531 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
532 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
533 void smpte_time (SMPTE::Time &);
534 void smpte_time (nframes_t when, SMPTE::Time&);
535 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
537 void smpte_duration (nframes_t, SMPTE::Time&) const;
538 void smpte_duration_string (char *, nframes_t) const;
540 void set_smpte_offset (nframes_t);
541 nframes_t smpte_offset () const { return _smpte_offset; }
542 void set_smpte_offset_negative (bool);
543 bool smpte_offset_negative () const { return _smpte_offset_negative; }
545 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
547 static sigc::signal<void> StartTimeChanged;
548 static sigc::signal<void> EndTimeChanged;
549 static sigc::signal<void> SMPTEOffsetChanged;
551 void request_slave_source (SlaveSource);
552 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
554 float transport_speed() const { return _transport_speed; }
555 bool transport_stopped() const { return _transport_speed == 0.0f; }
556 bool transport_rolling() const { return _transport_speed != 0.0f; }
558 void set_silent (bool yn);
559 bool silent () { return _silent; }
561 int jack_slave_sync (nframes_t);
563 TempoMap& tempo_map() { return *_tempo_map; }
567 void add_regions (std::vector<boost::shared_ptr<Region> >&);
569 sigc::signal<void,boost::weak_ptr<Region> > RegionAdded;
570 sigc::signal<void,std::vector<boost::weak_ptr<Region> >& > RegionsAdded;
571 sigc::signal<void,boost::weak_ptr<Region> > RegionRemoved;
573 int region_name (string& result, string base = string(""), bool newlevel = false) const;
574 string new_region_name (string);
575 string path_from_region_name (DataType type, string name, string identifier);
577 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>);
579 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
581 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
582 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
583 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
585 template<class T> void foreach_region (T *obj, void (T::*func)(boost::shared_ptr<Region>));
587 /* source management */
589 struct import_status : public InterThreadInfo {
594 volatile bool freeze;
595 std::vector<Glib::ustring> paths;
596 bool replace_existing_source;
603 void import_audiofiles (import_status&);
604 bool sample_rate_convert (import_status&, string infile, string& outfile);
605 string build_tmp_convert_name (string file);
607 SlaveSource post_export_slave;
608 nframes_t post_export_position;
610 int start_export (ARDOUR::ExportSpecification&);
611 int stop_export (ARDOUR::ExportSpecification&);
612 void finalize_audio_export ();
614 void add_source (boost::shared_ptr<Source>);
615 void remove_source (boost::weak_ptr<Source>);
617 struct cleanup_report {
618 vector<string> paths;
622 int cleanup_sources (cleanup_report&);
623 int cleanup_trash_sources (cleanup_report&);
625 int destroy_region (boost::shared_ptr<Region>);
626 int destroy_regions (std::list<boost::shared_ptr<Region> >);
628 int remove_last_capture ();
630 /* handlers should return -1 for "stop cleanup", 0 for
631 "yes, delete this playlist" and 1 for "no, don't delete
635 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
637 /* handlers should return 0 for "ignore the rate mismatch"
638 and !0 for "do not use this session"
641 static sigc::signal<int,nframes_t, nframes_t> AskAboutSampleRateMismatch;
643 /* handlers should return !0 for use pending state, 0 for
647 static sigc::signal<int> AskAboutPendingState;
649 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
651 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
653 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
654 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
656 /* playlist management */
658 boost::shared_ptr<Playlist> playlist_by_name (string name);
659 void add_playlist (boost::shared_ptr<Playlist>);
660 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
661 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
663 uint32_t n_playlists() const;
665 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
666 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
668 /* named selections */
670 NamedSelection* named_selection_by_name (string name);
671 void add_named_selection (NamedSelection *);
672 void remove_named_selection (NamedSelection *);
674 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
675 sigc::signal<void> NamedSelectionAdded;
676 sigc::signal<void> NamedSelectionRemoved;
678 /* Curves and AutomationLists (TODO when they go away) */
679 void add_curve(Curve*);
680 void add_automation_list(AutomationList*);
684 float get_default_fade_length () const { return default_fade_msecs; }
685 float get_default_fade_steepness () const { return default_fade_steepness; }
686 void set_default_fade (float steepness, float msecs);
690 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
691 void audition_playlist ();
692 void audition_region (boost::shared_ptr<Region>);
693 void cancel_audition ();
694 bool is_auditioning () const;
696 sigc::signal<void,bool> AuditionActive;
698 /* flattening stuff */
700 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite,
701 vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot);
703 int freeze (InterThreadInfo&);
705 /* session-wide solo/mute/rec-enable */
707 bool soloing() const { return currently_soloing; }
709 void set_all_solo (bool);
710 void set_all_mute (bool);
712 sigc::signal<void,bool> SoloActive;
713 sigc::signal<void> SoloChanged;
715 void record_disenable_all ();
716 void record_enable_all ();
718 /* control/master out */
720 boost::shared_ptr<IO> control_out() const { return _control_out; }
721 boost::shared_ptr<IO> master_out() const { return _master_out; }
723 /* insert/send management */
725 uint32_t n_port_inserts() const { return _port_inserts.size(); }
726 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
727 uint32_t n_sends() const { return _sends.size(); }
729 static void set_disable_all_loaded_plugins (bool yn) {
730 _disable_all_loaded_plugins = yn;
732 static bool get_disable_all_loaded_plugins() {
733 return _disable_all_loaded_plugins;
736 uint32_t next_send_id();
737 uint32_t next_insert_id();
738 void mark_send_id (uint32_t);
739 void mark_insert_id (uint32_t);
741 /* s/w "RAID" management */
743 nframes_t available_capture_duration();
747 void foreach_bundle (sigc::slot<void, boost::shared_ptr<Bundle> >);
748 void add_bundle (boost::shared_ptr<Bundle>);
749 void remove_bundle (boost::shared_ptr<Bundle>);
750 boost::shared_ptr<Bundle> bundle_by_name (string) const;
752 sigc::signal<void,boost::shared_ptr<Bundle> > BundleAdded;
753 sigc::signal<void,boost::shared_ptr<Bundle> > BundleRemoved;
757 int set_mtc_port (string port_tag);
758 int set_mmc_port (string port_tag);
759 int set_midi_port (string port_tag);
760 MIDI::Port *mtc_port() const { return _mtc_port; }
761 MIDI::Port *mmc_port() const { return _mmc_port; }
762 MIDI::Port *midi_port() const { return _midi_port; }
764 sigc::signal<void> MTC_PortChanged;
765 sigc::signal<void> MMC_PortChanged;
766 sigc::signal<void> MIDI_PortChanged;
768 void set_trace_midi_input (bool, MIDI::Port* port = 0);
769 void set_trace_midi_output (bool, MIDI::Port* port = 0);
771 bool get_trace_midi_input(MIDI::Port *port = 0);
772 bool get_trace_midi_output(MIDI::Port *port = 0);
774 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
776 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
778 void set_mmc_receive_device_id (uint32_t id);
779 void set_mmc_send_device_id (uint32_t id);
783 void start_scrub (nframes_t where);
785 void set_scrub_speed (float);
786 nframes_t scrub_buffer_size() const;
787 sigc::signal<void> ScrubReady;
789 /* History (for editors, mixers, UIs etc.) */
791 /** Undo some transactions.
792 * @param n Number of transactions to undo.
794 void undo (uint32_t n) {
798 void redo (uint32_t n) {
802 UndoHistory& history() { return _history; }
804 uint32_t undo_depth() const { return _history.undo_depth(); }
805 uint32_t redo_depth() const { return _history.redo_depth(); }
806 string next_undo() const { return _history.next_undo(); }
807 string next_redo() const { return _history.next_redo(); }
809 void begin_reversible_command (const string& cmd_name);
810 void commit_reversible_command (Command* cmd = 0);
812 void add_command (Command *const cmd) {
813 current_trans->add_command (cmd);
816 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
818 // these commands are implemented in libs/ardour/session_command.cc
819 Command* memento_command_factory(XMLNode* n);
820 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
822 Command* global_state_command_factory (const XMLNode& n);
824 class GlobalRouteStateCommand : public Command
827 GlobalRouteStateCommand (Session&, void*);
828 GlobalRouteStateCommand (Session&, const XMLNode& node);
829 int set_state (const XMLNode&);
830 XMLNode& get_state ();
833 GlobalRouteBooleanState before, after;
839 class GlobalSoloStateCommand : public GlobalRouteStateCommand
842 GlobalSoloStateCommand (Session &, void *src);
843 GlobalSoloStateCommand (Session&, const XMLNode&);
844 void operator()(); //redo
846 XMLNode &get_state();
850 class GlobalMuteStateCommand : public GlobalRouteStateCommand
853 GlobalMuteStateCommand(Session &, void *src);
854 GlobalMuteStateCommand (Session&, const XMLNode&);
855 void operator()(); // redo
857 XMLNode &get_state();
861 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
864 GlobalRecordEnableStateCommand(Session &, void *src);
865 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
866 void operator()(); // redo
868 XMLNode &get_state();
872 class GlobalMeteringStateCommand : public Command
875 GlobalMeteringStateCommand(Session &, void *src);
876 GlobalMeteringStateCommand (Session&, const XMLNode&);
879 XMLNode &get_state();
880 int set_state (const XMLNode&);
886 GlobalRouteMeterState before;
887 GlobalRouteMeterState after;
892 boost::shared_ptr<IO> click_io() { return _click_io; }
894 /* disk, buffer loads */
896 uint32_t playback_load ();
897 uint32_t capture_load ();
898 uint32_t playback_load_min ();
899 uint32_t capture_load_min ();
901 void reset_playback_load_min ();
902 void reset_capture_load_min ();
904 float read_data_rate () const;
905 float write_data_rate () const;
909 void set_audio_range (list<AudioRange>&);
910 void set_music_range (list<MusicRange>&);
912 void request_play_range (bool yn);
913 bool get_play_range () const { return _play_range; }
915 /* buffers for gain and pan */
917 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
918 pan_t** pan_automation_buffer () const { return _pan_automation_buffer; }
920 /* buffers for conversion */
929 static long vst_callback (AEffect* effect,
936 typedef float (*compute_peak_t) (Sample *, nframes_t, float);
937 typedef void (*find_peaks_t) (Sample *, nframes_t, float *, float*);
938 typedef void (*apply_gain_to_buffer_t) (Sample *, nframes_t, float);
939 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, nframes_t, float);
940 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, nframes_t);
942 static compute_peak_t compute_peak;
943 static find_peaks_t find_peaks;
944 static apply_gain_to_buffer_t apply_gain_to_buffer;
945 static mix_buffers_with_gain_t mix_buffers_with_gain;
946 static mix_buffers_no_gain_t mix_buffers_no_gain;
948 static sigc::signal<void> SendFeedback;
952 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
954 void add_controllable (boost::shared_ptr<PBD::Controllable>);
955 void remove_controllable (PBD::Controllable*);
958 friend class AudioEngine;
959 void set_block_size (nframes_t nframes);
960 void set_frame_rate (nframes_t nframes);
963 friend class Diskstream;
965 void wait_till_butler_finished();
969 void schedule_curve_reallocation ();
970 void update_latency_compensation (bool, bool);
973 int create (bool& new_session, const string& mix_template, nframes_t initial_length);
976 nframes_t compute_initial_length ();
979 PendingDeclickIn = 0x1,
980 PendingDeclickOut = 0x2,
981 StopPendingCapture = 0x4,
982 AutoReturning = 0x10,
983 PendingLocate = 0x20,
984 PendingSetLoop = 0x40
987 /* stuff used in process() should be close together to
991 typedef void (Session::*process_function_type)(nframes_t);
993 AudioEngine& _engine;
994 mutable gint processing_prohibited;
995 process_function_type process_function;
996 process_function_type last_process_function;
997 bool waiting_for_sync_offset;
998 nframes_t _base_frame_rate;
999 nframes_t _current_frame_rate; //this includes video pullup offset
1000 nframes_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1001 int transport_sub_state;
1002 mutable gint _record_status;
1003 volatile nframes_t _transport_frame;
1004 Location* end_location;
1005 Location* start_location;
1008 volatile float _transport_speed;
1009 volatile float _desired_transport_speed;
1010 float _last_transport_speed;
1011 bool auto_play_legal;
1012 nframes_t _last_slave_transport_frame;
1013 nframes_t maximum_output_latency;
1014 nframes_t last_stop_frame;
1015 volatile nframes64_t _requested_return_frame;
1016 BufferSet* _scratch_buffers;
1017 BufferSet* _silent_buffers;
1018 BufferSet* _mix_buffers;
1019 nframes_t current_block_size;
1020 nframes_t _worst_output_latency;
1021 nframes_t _worst_input_latency;
1022 nframes_t _worst_track_latency;
1023 bool _have_captured;
1025 float _meter_falloff;
1026 bool _end_location_is_free;
1028 void set_worst_io_latencies ();
1029 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1030 set_worst_io_latencies ();
1033 void update_latency_compensation_proxy (void* ignored);
1035 void ensure_buffers (ChanCount howmany);
1037 void process_scrub (nframes_t);
1038 void process_without_events (nframes_t);
1039 void process_with_events (nframes_t);
1040 void process_audition (nframes_t);
1041 int process_export (nframes_t, ARDOUR::ExportSpecification*);
1043 /* slave tracking */
1045 static const int delta_accumulator_size = 25;
1046 int delta_accumulator_cnt;
1047 long delta_accumulator[delta_accumulator_size];
1048 long average_slave_delta;
1050 bool have_first_delta_accumulator;
1058 SlaveState slave_state;
1059 nframes_t slave_wait_end;
1061 void reset_slave_state ();
1062 bool follow_slave (nframes_t, nframes_t);
1063 void set_slave_source (SlaveSource);
1066 int prepare_to_export (ARDOUR::ExportSpecification&);
1068 void prepare_diskstreams ();
1069 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1070 int process_routes (nframes_t, nframes_t);
1071 int silent_process_routes (nframes_t, nframes_t);
1073 bool get_rec_monitors_input () {
1074 if (actively_recording()) {
1077 if (Config->get_auto_input()) {
1085 int get_transport_declick_required () {
1087 if (transport_sub_state & PendingDeclickIn) {
1088 transport_sub_state &= ~PendingDeclickIn;
1090 } else if (transport_sub_state & PendingDeclickOut) {
1097 bool maybe_stop (nframes_t limit) {
1098 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1105 bool maybe_sync_start (nframes_t&, nframes_t&);
1107 void check_declick_out ();
1109 MIDI::MachineControl* mmc;
1110 MIDI::Port* _mmc_port;
1111 MIDI::Port* _mtc_port;
1112 MIDI::Port* _midi_port;
1115 bool session_send_mmc;
1116 bool session_send_mtc;
1117 bool session_midi_feedback;
1120 nframes_t last_loopend;
1122 boost::scoped_ptr<SessionDirectory> _session_dir;
1124 RingBuffer<Event*> pending_events;
1127 void when_engine_running ();
1128 void graph_reordered ();
1130 string _current_snapshot_name;
1132 XMLTree* state_tree;
1133 bool state_was_pending;
1134 StateOfTheState _state_of_the_state;
1137 int load_options (const XMLNode&);
1138 XMLNode& get_options () const;
1139 int load_state (string snapshot_name);
1140 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1142 nframes_t _last_roll_location;
1143 nframes_t _last_record_location;
1145 bool pending_locate_roll;
1146 nframes_t pending_locate_frame;
1147 bool pending_locate_flush;
1149 bool pending_auto_loop;
1151 Sample* butler_mixdown_buffer;
1152 float* butler_gain_buffer;
1153 pthread_t butler_thread;
1154 Glib::Mutex butler_request_lock;
1155 Glib::Cond butler_paused;
1156 bool butler_should_run;
1157 mutable gint butler_should_do_transport_work;
1158 int butler_request_pipe[2];
1160 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1162 struct ButlerRequest {
1171 enum PostTransportWork {
1172 PostTransportStop = 0x1,
1173 PostTransportDisableRecord = 0x2,
1174 PostTransportPosition = 0x8,
1175 PostTransportDidRecord = 0x20,
1176 PostTransportDuration = 0x40,
1177 PostTransportLocate = 0x80,
1178 PostTransportRoll = 0x200,
1179 PostTransportAbort = 0x800,
1180 PostTransportOverWrite = 0x1000,
1181 PostTransportSpeed = 0x2000,
1182 PostTransportAudition = 0x4000,
1183 PostTransportScrub = 0x8000,
1184 PostTransportReverse = 0x10000,
1185 PostTransportInputChange = 0x20000,
1186 PostTransportCurveRealloc = 0x40000
1189 static const PostTransportWork ProcessCannotProceedMask =
1190 PostTransportWork (PostTransportInputChange|
1192 PostTransportReverse|
1193 PostTransportCurveRealloc|
1195 PostTransportAudition|
1196 PostTransportLocate|
1199 PostTransportWork post_transport_work;
1201 void summon_butler ();
1202 void schedule_butler_transport_work ();
1203 int start_butler_thread ();
1204 void terminate_butler_thread ();
1205 static void *_butler_thread_work (void *arg);
1206 void* butler_thread_work ();
1208 uint32_t cumulative_rf_motion;
1211 void set_rf_speed (float speed);
1212 void reset_rf_scale (nframes_t frames_moved);
1214 Locations _locations;
1215 void locations_changed ();
1216 void locations_added (Location*);
1217 void handle_locations_changed (Locations::LocationList&);
1219 sigc::connection auto_punch_start_changed_connection;
1220 sigc::connection auto_punch_end_changed_connection;
1221 sigc::connection auto_punch_changed_connection;
1222 void auto_punch_start_changed (Location *);
1223 void auto_punch_end_changed (Location *);
1224 void auto_punch_changed (Location *);
1226 sigc::connection auto_loop_start_changed_connection;
1227 sigc::connection auto_loop_end_changed_connection;
1228 sigc::connection auto_loop_changed_connection;
1229 void auto_loop_changed (Location *);
1231 typedef list<Event *> Events;
1233 Events immediate_events;
1234 Events::iterator next_event;
1236 /* there can only ever be one of each of these */
1238 Event *auto_loop_event;
1239 Event *punch_out_event;
1240 Event *punch_in_event;
1244 void dump_events () const;
1245 void queue_event (Event *ev);
1246 void merge_event (Event*);
1247 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1248 bool _replace_event (Event*);
1249 bool _remove_event (Event *);
1250 void _clear_event_type (Event::Type);
1252 void first_stage_init (string path, string snapshot_name);
1253 int second_stage_init (bool new_tracks);
1254 void find_current_end ();
1255 void remove_empty_sounds ();
1257 void setup_midi_control ();
1258 //int midi_read (MIDI::Port *);
1260 void enable_record ();
1262 void increment_transport_position (uint32_t val) {
1263 if (max_frames - val < _transport_frame) {
1264 _transport_frame = max_frames;
1266 _transport_frame += val;
1270 void decrement_transport_position (uint32_t val) {
1271 if (val < _transport_frame) {
1272 _transport_frame -= val;
1274 _transport_frame = 0;
1278 void post_transport_motion ();
1279 static void *session_loader_thread (void *arg);
1283 void set_next_event ();
1284 void process_event (Event *ev);
1286 /* MIDI Machine Control */
1288 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1289 //void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1290 //void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1292 void spp_start (MIDI::Parser&);
1293 void spp_continue (MIDI::Parser&);
1294 void spp_stop (MIDI::Parser&);
1296 void mmc_deferred_play (MIDI::MachineControl &);
1297 void mmc_stop (MIDI::MachineControl &);
1298 void mmc_step (MIDI::MachineControl &, int);
1299 void mmc_pause (MIDI::MachineControl &);
1300 void mmc_record_pause (MIDI::MachineControl &);
1301 void mmc_record_strobe (MIDI::MachineControl &);
1302 void mmc_record_exit (MIDI::MachineControl &);
1303 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1304 void mmc_fast_forward (MIDI::MachineControl &);
1305 void mmc_rewind (MIDI::MachineControl &);
1306 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1307 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1308 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1310 struct timeval last_mmc_step;
1313 typedef sigc::slot<bool> MidiTimeoutCallback;
1314 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1316 MidiTimeoutList midi_timeouts;
1317 bool mmc_step_timeout ();
1319 MIDI::byte mmc_buffer[32];
1320 MIDI::byte mtc_msg[16];
1321 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1322 MIDI::byte midi_msg[16];
1323 nframes_t outbound_mtc_smpte_frame;
1324 SMPTE::Time transmitting_smpte_time;
1325 int next_quarter_frame_to_send;
1327 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1328 nframes_t _frames_per_hour;
1329 nframes_t _smpte_frames_per_hour;
1330 nframes_t _smpte_offset;
1331 bool _smpte_offset_negative;
1333 /* cache the most-recently requested time conversions. This helps when we
1334 * have multiple clocks showing the same time (e.g. the transport frame) */
1335 bool last_smpte_valid;
1336 nframes_t last_smpte_when;
1337 SMPTE::Time last_smpte;
1339 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1341 int send_full_time_code(nframes_t nframes);
1342 int send_midi_time_code_for_cycle(nframes_t nframes);
1344 nframes_t adjust_apparent_position (nframes_t frames);
1346 void reset_record_status ();
1348 int no_roll (nframes_t nframes, nframes_t offset);
1350 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1351 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1353 struct MIDIRequest {
1366 MIDI::MachineControl::Command mmc_cmd;
1367 nframes_t locate_frame;
1369 // for SendMessage type
1372 MIDI::channel_t chan;
1374 MIDI::EventTwoBytes data;
1385 void *operator new(size_t ignored) {
1386 return pool.alloc ();
1389 void operator delete(void *ptr, size_t size) {
1394 static MultiAllocSingleReleasePool pool;
1397 mutable gint butler_active;
1399 void change_midi_ports ();
1400 int use_config_midi_ports ();
1402 bool waiting_to_start;
1404 void set_play_loop (bool yn);
1405 void overwrite_some_buffers (Diskstream*);
1406 void flush_all_inserts ();
1407 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1408 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1409 void force_locate (nframes_t frame, bool with_roll = false);
1410 void set_diskstream_speed (Diskstream*, float speed);
1411 void set_transport_speed (float speed, bool abort = false);
1412 void stop_transport (bool abort = false);
1413 void start_transport ();
1414 void actually_start_transport ();
1415 void realtime_stop (bool abort);
1416 void non_realtime_start_scrub ();
1417 void non_realtime_set_speed ();
1418 void non_realtime_locate ();
1419 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1420 void non_realtime_overwrite (int entry_request_count, bool& finished);
1421 void butler_transport_work ();
1422 void post_transport ();
1423 void engine_halted ();
1424 void xrun_recovery ();
1426 TempoMap *_tempo_map;
1427 void tempo_map_changed (Change);
1429 /* edit/mix groups */
1431 int load_route_groups (const XMLNode&, bool is_edit);
1432 int load_edit_groups (const XMLNode&);
1433 int load_mix_groups (const XMLNode&);
1436 list<RouteGroup *> edit_groups;
1437 list<RouteGroup *> mix_groups;
1441 SerializedRCUManager<DiskstreamList> diskstreams;
1443 uint32_t dstream_buffer_size;
1444 int load_diskstreams (const XMLNode&);
1448 SerializedRCUManager<RouteList> routes;
1450 void add_routes (RouteList&, bool save);
1451 uint32_t destructive_index;
1453 int load_routes (const XMLNode&);
1454 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1458 bool solo_update_disabled;
1459 bool currently_soloing;
1461 void route_mute_changed (void *src);
1462 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1463 void catch_up_on_solo ();
1464 void update_route_solo_state ();
1465 void modify_solo_mute (bool, bool);
1466 void strip_portname_for_solo (string& portname);
1468 /* REGION MANAGEMENT */
1470 mutable Glib::Mutex region_lock;
1471 typedef map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1474 void add_region (boost::shared_ptr<Region>);
1475 void region_changed (Change, boost::weak_ptr<Region>);
1476 void remove_region (boost::weak_ptr<Region>);
1478 int load_regions (const XMLNode& node);
1482 mutable Glib::Mutex source_lock;
1483 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1488 SourceMap get_sources() { return sources; }
1493 int load_sources (const XMLNode& node);
1494 XMLNode& get_sources_as_xml ();
1496 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1500 mutable Glib::Mutex playlist_lock;
1501 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1502 PlaylistList playlists;
1503 PlaylistList unused_playlists;
1505 int load_playlists (const XMLNode&);
1506 int load_unused_playlists (const XMLNode&);
1507 void remove_playlist (boost::weak_ptr<Playlist>);
1508 void track_playlist (bool, boost::weak_ptr<Playlist>);
1510 boost::shared_ptr<Playlist> playlist_factory (string name);
1511 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1513 void playlist_length_changed ();
1514 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1516 /* NAMED SELECTIONS */
1518 mutable Glib::Mutex named_selection_lock;
1519 typedef set<NamedSelection *> NamedSelectionList;
1520 NamedSelectionList named_selections;
1522 int load_named_selections (const XMLNode&);
1524 NamedSelection *named_selection_factory (string name);
1525 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1527 /* CURVES and AUTOMATION LISTS */
1528 std::map<PBD::ID, Curve*> curves;
1529 std::map<PBD::ID, AutomationList*> automation_lists;
1531 /* DEFAULT FADE CURVES */
1533 float default_fade_steepness;
1534 float default_fade_msecs;
1538 boost::shared_ptr<Auditioner> auditioner;
1539 void set_audition (boost::shared_ptr<Region>);
1540 void non_realtime_set_audition ();
1541 boost::shared_ptr<Region> pending_audition_region;
1547 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1549 /* INSERT AND SEND MANAGEMENT */
1551 list<PortInsert *> _port_inserts;
1552 list<PluginInsert *> _plugin_inserts;
1553 list<Send *> _sends;
1554 boost::dynamic_bitset<uint32_t> send_bitset;
1555 boost::dynamic_bitset<uint32_t> insert_bitset;
1557 uint32_t insert_cnt;
1560 void add_processor (Processor *);
1561 void remove_processor (Processor *);
1565 struct space_and_path {
1566 uint32_t blocks; /* 4kB blocks */
1574 struct space_and_path_ascending_cmp {
1575 bool operator() (space_and_path a, space_and_path b) {
1576 return a.blocks > b.blocks;
1580 void setup_raid_path (string path);
1582 vector<space_and_path> session_dirs;
1583 vector<space_and_path>::iterator last_rr_session_dir;
1584 uint32_t _total_free_4k_blocks;
1585 Glib::Mutex space_lock;
1587 string get_best_session_directory_for_new_source ();
1588 void refresh_disk_space ();
1590 mutable gint _playback_load;
1591 mutable gint _capture_load;
1592 mutable gint _playback_load_min;
1593 mutable gint _capture_load_min;
1597 typedef list<boost::shared_ptr<Bundle> > BundleList;
1598 mutable Glib::Mutex bundle_lock;
1599 BundleList _bundles;
1600 XMLNode* _bundle_xml_node;
1601 int load_bundles (XMLNode const &);
1603 void reverse_diskstream_buffers ();
1605 UndoHistory _history;
1606 UndoTransaction* current_trans;
1608 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1609 GlobalRouteMeterState get_global_route_metering ();
1611 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1612 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1614 void set_global_mute (GlobalRouteBooleanState s, void *src);
1615 void set_global_solo (GlobalRouteBooleanState s, void *src);
1616 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1618 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1619 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1620 void reset_jack_connection (jack_client_t* jack);
1621 void record_enable_change_all (bool yn);
1623 XMLNode& state(bool);
1633 Click (nframes_t s, nframes_t d, const Sample *b)
1634 : start (s), duration (d), data (b) { offset = 0; }
1636 void *operator new(size_t ignored) {
1637 return pool.alloc ();
1640 void operator delete(void *ptr, size_t size) {
1648 typedef list<Click*> Clicks;
1652 boost::shared_ptr<IO> _click_io;
1654 Sample* click_emphasis_data;
1655 nframes_t click_length;
1656 nframes_t click_emphasis_length;
1657 mutable Glib::RWLock click_lock;
1659 static const Sample default_click[];
1660 static const nframes_t default_click_length;
1661 static const Sample default_click_emphasis[];
1662 static const nframes_t default_click_emphasis_length;
1665 void setup_click_sounds (int which);
1666 void clear_clicks ();
1667 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1669 vector<Route*> master_outs;
1671 /* range playback */
1673 list<AudioRange> current_audio_range;
1675 void set_play_range (bool yn);
1676 void setup_auto_play ();
1681 boost::shared_ptr<IO> _master_out;
1682 boost::shared_ptr<IO> _control_out;
1684 gain_t* _gain_automation_buffer;
1685 pan_t** _pan_automation_buffer;
1686 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1687 uint32_t _npan_buffers;
1691 long _vst_callback (VSTPlugin*,
1698 /* number of hardware ports we're using,
1699 based on max (requested,available)
1702 uint32_t n_physical_outputs;
1703 uint32_t n_physical_inputs;
1706 int find_all_sources (std::string path, std::set<std::string>& result);
1707 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1709 LayerModel layer_model;
1710 CrossfadeModel xfade_model;
1712 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1713 Glib::Mutex controllables_lock;
1714 Controllables controllables;
1716 void reset_native_file_format();
1717 bool first_file_data_format_reset;
1718 bool first_file_header_format_reset;
1720 void config_changed (const char*);
1722 XMLNode& get_control_protocol_state ();
1724 void set_history_depth (uint32_t depth);
1725 void sync_order_keys ();
1727 static bool _disable_all_loaded_plugins;
1730 } // namespace ARDOUR
1732 #endif /* __ardour_session_h__ */