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 AudioExportSpecification;
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;
149 InputConfigurationChange,
153 /* only one of each of these events
154 can be queued at any one time
170 nframes_t action_frame;
171 nframes_t target_frame;
181 boost::shared_ptr<Region> region;
183 list<AudioRange> audio_range;
184 list<MusicRange> music_range;
186 Event(Type t, Action a, nframes_t when, nframes_t where, float spd, bool yn = false)
190 target_frame (where),
194 void set_ptr (void* p) {
198 bool before (const Event& other) const {
199 return action_frame < other.action_frame;
202 bool after (const Event& other) const {
203 return action_frame > other.action_frame;
206 static bool compare (const Event *e1, const Event *e2) {
207 return e1->before (*e2);
210 void *operator new (size_t ignored) {
211 return pool.alloc ();
214 void operator delete(void *ptr, size_t size) {
218 static const nframes_t Immediate = 0;
221 static MultiAllocSingleReleasePool pool;
224 /* creating from an XML file */
226 Session (AudioEngine&,
228 string snapshot_name,
229 string* mix_template = 0);
231 /* creating a new Session */
233 Session (AudioEngine&,
235 string snapshot_name,
236 AutoConnectOption input_auto_connect,
237 AutoConnectOption output_auto_connect,
238 uint32_t control_out_channels,
239 uint32_t master_out_channels,
240 uint32_t n_physical_in,
241 uint32_t n_physical_out,
242 nframes_t initial_length);
246 string path() const { return _path; }
247 string name() const { return _name; }
248 string snap_name() const { return _current_snapshot_name; }
249 string raid_path () const;
251 void set_snap_name ();
255 bool dirty() const { return _state_of_the_state & Dirty; }
256 void set_deletion_in_progress ();
257 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
258 sigc::signal<void> DirtyChanged;
260 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
262 std::string automation_dir () const;
264 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
265 static string change_midi_path_by_name (string oldpath, string oldname, string newname, bool destructive);
267 string peak_path_from_audio_path (string) const;
268 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
269 string midi_path_from_name (string);
271 void process (nframes_t nframes);
273 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
274 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
275 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
277 void add_diskstream (boost::shared_ptr<Diskstream>);
278 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
279 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
281 bool have_captured() const { return _have_captured; }
283 void refill_all_diskstream_buffers ();
284 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
286 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
287 uint32_t n_diskstreams() const;
289 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
290 typedef std::list<boost::shared_ptr<Route> > RouteList;
292 boost::shared_ptr<RouteList> get_routes() const {
293 return routes.reader ();
296 uint32_t nroutes() const { return routes.reader()->size(); }
297 uint32_t ntracks () const;
298 uint32_t nbusses () const;
300 struct RoutePublicOrderSorter {
301 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
304 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
305 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
306 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
308 boost::shared_ptr<Route> route_by_name (string);
309 boost::shared_ptr<Route> route_by_id (PBD::ID);
310 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
312 bool route_name_unique (string) const;
314 bool get_record_enabled() const {
315 return (record_status () >= Enabled);
318 RecordState record_status() const {
319 return (RecordState) g_atomic_int_get (&_record_status);
322 bool actively_recording () {
323 return record_status() == Recording;
326 bool record_enabling_legal () const;
327 void maybe_enable_record ();
328 void disable_record (bool rt_context, bool force = false);
329 void step_back_from_record ();
331 void maybe_write_autosave ();
333 /* Proxy signal for region hidden changes */
335 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
337 /* Emitted when all i/o connections are complete */
339 sigc::signal<void> IOConnectionsComplete;
341 /* Record status signals */
343 sigc::signal<void> RecordStateChanged;
345 /* Transport mechanism signals */
347 sigc::signal<void> TransportStateChange; /* generic */
348 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
349 sigc::signal<void> DurationChanged;
350 sigc::signal<void> HaltOnXrun;
351 sigc::signal<void> TransportLooped;
353 sigc::signal<void,RouteList&> RouteAdded;
355 void request_roll ();
356 void request_bounded_roll (nframes_t start, nframes_t end);
357 void request_stop (bool abort = false);
358 void request_locate (nframes_t frame, bool with_roll = false);
360 void request_play_loop (bool yn);
361 bool get_play_loop () const { return play_loop; }
363 nframes_t last_transport_start() const { return _last_roll_location; }
364 void goto_end () { request_locate (end_location->start(), false);}
365 void goto_start () { request_locate (start_location->start(), false); }
366 void set_session_start (nframes_t start) { start_location->set_start(start); }
367 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
368 void use_rf_shuttle_speed ();
369 void allow_auto_play (bool yn);
370 void request_transport_speed (float speed);
371 void request_overwrite_buffer (Diskstream*);
372 void request_diskstream_speed (Diskstream&, float speed);
373 void request_input_change_handling ();
375 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
376 bool transport_locked () const;
379 //int wipe_diskstream (AudioDiskstream *);
381 int remove_region_from_region_list (boost::shared_ptr<Region>);
383 nframes_t get_maximum_extent () const;
384 nframes_t current_end_frame() const { return end_location->start(); }
385 nframes_t current_start_frame() const { return start_location->start(); }
386 nframes_t frame_rate() const { return _current_frame_rate; }
387 nframes_t frames_per_hour() const { return _frames_per_hour; }
389 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
390 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
392 float smpte_frames_per_second() const;
393 bool smpte_drop_frames() const;
397 Locations *locations() { return &_locations; }
399 sigc::signal<void,Location*> auto_loop_location_changed;
400 sigc::signal<void,Location*> auto_punch_location_changed;
401 sigc::signal<void> locations_modified;
403 void set_auto_punch_location (Location *);
404 void set_auto_loop_location (Location *);
405 int location_name(string& result, string base = string(""));
407 void reset_input_monitor_state ();
409 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
410 void remove_event (nframes_t frame, Event::Type type);
411 void clear_events (Event::Type type);
413 nframes_t get_block_size() const { return current_block_size; }
414 nframes_t worst_output_latency () const { return _worst_output_latency; }
415 nframes_t worst_input_latency () const { return _worst_input_latency; }
416 nframes_t worst_track_latency () const { return _worst_track_latency; }
418 int save_state (string snapshot_name, bool pending = false);
419 int restore_state (string snapshot_name);
420 int save_template (string template_name);
421 int save_history (string snapshot_name = "");
422 int restore_history (string snapshot_name);
423 void remove_state (string snapshot_name);
424 void rename_state (string old_name, string new_name);
426 sigc::signal<void,string> StateSaved;
427 sigc::signal<void> StateReady;
429 XMLNode& get_state();
430 int set_state(const XMLNode& node); // not idempotent
431 XMLNode& get_template();
433 /// The instant xml file is written to the session directory
434 void add_instant_xml (XMLNode&);
435 XMLNode * instant_xml (const std::string& str);
437 enum StateOfTheState {
442 InitialConnecting = 0x8,
447 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
449 RouteGroup* add_edit_group (string);
450 RouteGroup* add_mix_group (string);
452 void remove_edit_group (RouteGroup&);
453 void remove_mix_group (RouteGroup&);
455 RouteGroup *mix_group_by_name (string);
456 RouteGroup *edit_group_by_name (string);
458 sigc::signal<void,RouteGroup*> edit_group_added;
459 sigc::signal<void,RouteGroup*> mix_group_added;
460 sigc::signal<void> edit_group_removed;
461 sigc::signal<void> mix_group_removed;
463 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
464 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
469 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
470 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
475 /* fundamental operations. duh. */
477 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
478 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
480 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (TrackMode mode = Normal, uint32_t how_many = 1);
481 //boost::shared_ptr<Route> new_midi_route (uint32_t how_many = 1);
483 void remove_route (boost::shared_ptr<Route>);
484 void resort_routes ();
485 void resort_routes_using (boost::shared_ptr<RouteList>);
487 void set_remote_control_ids();
489 AudioEngine &engine() { return _engine; };
496 nframes_t transport_frame () const {return _transport_frame; }
497 nframes_t audible_frame () const;
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 int jack_slave_sync (nframes_t);
544 TempoMap& tempo_map() { return *_tempo_map; }
548 sigc::signal<void,boost::shared_ptr<Region> > RegionAdded;
549 sigc::signal<void,boost::shared_ptr<Region> > RegionRemoved;
551 int region_name (string& result, string base = string(""), bool newlevel = false) const;
552 string new_region_name (string);
553 string path_from_region_name (DataType type, string name, string identifier);
555 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>);
557 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
559 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
560 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
561 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
563 template<class T> void foreach_region (T *obj, void (T::*func)(boost::shared_ptr<Region>));
565 /* source management */
567 struct import_status : public InterThreadInfo {
573 volatile bool freeze;
574 std::vector<Glib::ustring> paths;
577 std::vector<boost::shared_ptr<Region> > new_regions;
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<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
624 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
625 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
627 /* playlist management */
629 boost::shared_ptr<Playlist> playlist_by_name (string name);
630 void add_playlist (boost::shared_ptr<Playlist>);
631 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
632 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
634 uint32_t n_playlists() const;
636 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
637 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
639 /* named selections */
641 NamedSelection* named_selection_by_name (string name);
642 void add_named_selection (NamedSelection *);
643 void remove_named_selection (NamedSelection *);
645 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
646 sigc::signal<void> NamedSelectionAdded;
647 sigc::signal<void> NamedSelectionRemoved;
649 /* Curves and AutomationLists (TODO when they go away) */
650 void add_curve(Curve*);
651 void add_automation_list(AutomationList*);
653 nframes_t automation_interval () const { return _automation_interval; }
657 float get_default_fade_length () const { return default_fade_msecs; }
658 float get_default_fade_steepness () const { return default_fade_steepness; }
659 void set_default_fade (float steepness, float msecs);
663 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
664 void audition_playlist ();
665 void audition_region (boost::shared_ptr<Region>);
666 void cancel_audition ();
667 bool is_auditioning () const;
669 sigc::signal<void,bool> AuditionActive;
671 /* flattening stuff */
673 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite,
674 vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot);
676 int freeze (InterThreadInfo&);
678 /* session-wide solo/mute/rec-enable */
680 bool soloing() const { return currently_soloing; }
682 void set_all_solo (bool);
683 void set_all_mute (bool);
685 sigc::signal<void,bool> SoloActive;
686 sigc::signal<void> SoloChanged;
688 void record_disenable_all ();
689 void record_enable_all ();
691 /* control/master out */
693 boost::shared_ptr<IO> control_out() const { return _control_out; }
694 boost::shared_ptr<IO> master_out() const { return _master_out; }
696 /* insert/send management */
698 uint32_t n_port_inserts() const { return _port_inserts.size(); }
699 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
700 uint32_t n_sends() const { return _sends.size(); }
702 uint32_t next_send_id();
703 uint32_t next_insert_id();
704 void mark_send_id (uint32_t);
705 void mark_insert_id (uint32_t);
707 /* s/w "RAID" management */
709 nframes_t available_capture_duration();
713 template<class T> void foreach_bundle (T *obj, void (T::*func)(Bundle *));
714 void add_bundle (Bundle *);
715 void remove_bundle (Bundle *);
716 Bundle *bundle_by_name (string) const;
718 sigc::signal<void,Bundle *> BundleAdded;
719 sigc::signal<void,Bundle *> BundleRemoved;
723 int set_mtc_port (string port_tag);
724 int set_mmc_port (string port_tag);
725 int set_midi_port (string port_tag);
726 MIDI::Port *mtc_port() const { return _mtc_port; }
727 MIDI::Port *mmc_port() const { return _mmc_port; }
728 MIDI::Port *midi_port() const { return _midi_port; }
730 sigc::signal<void> MTC_PortChanged;
731 sigc::signal<void> MMC_PortChanged;
732 sigc::signal<void> MIDI_PortChanged;
734 void set_trace_midi_input (bool, MIDI::Port* port = 0);
735 void set_trace_midi_output (bool, MIDI::Port* port = 0);
737 bool get_trace_midi_input(MIDI::Port *port = 0);
738 bool get_trace_midi_output(MIDI::Port *port = 0);
740 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
742 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
744 void set_mmc_receive_device_id (uint32_t id);
745 void set_mmc_send_device_id (uint32_t id);
749 void start_scrub (nframes_t where);
751 void set_scrub_speed (float);
752 nframes_t scrub_buffer_size() const;
753 sigc::signal<void> ScrubReady;
755 /* History (for editors, mixers, UIs etc.) */
757 /** Undo some transactions.
758 * @param n Number of transactions to undo.
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 (const 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; }
862 struct TimeStretchRequest {
863 boost::shared_ptr<ARDOUR::AudioRegion> region;
864 float fraction; /* session: read ; GUI: write */
865 float progress; /* session: write ; GUI: read */
866 bool running; /* read/write */
867 bool quick_seek; /* GUI: write */
868 bool antialias; /* GUI: write */
870 TimeStretchRequest () {}
873 boost::shared_ptr<AudioRegion> tempoize_region (TimeStretchRequest&);
875 /* disk, buffer loads */
877 uint32_t playback_load ();
878 uint32_t capture_load ();
879 uint32_t playback_load_min ();
880 uint32_t capture_load_min ();
882 void reset_playback_load_min ();
883 void reset_capture_load_min ();
885 float read_data_rate () const;
886 float write_data_rate () const;
890 void set_audio_range (list<AudioRange>&);
891 void set_music_range (list<MusicRange>&);
893 void request_play_range (bool yn);
894 bool get_play_range () const { return _play_range; }
896 /* buffers for gain and pan */
898 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
899 pan_t** pan_automation_buffer () const { return _pan_automation_buffer; }
901 /* buffers for conversion */
910 static long vst_callback (AEffect* effect,
917 static sigc::signal<void> SendFeedback;
921 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
923 void add_controllable (boost::shared_ptr<PBD::Controllable>);
924 void remove_controllable (PBD::Controllable*);
927 friend class AudioEngine;
928 void set_block_size (nframes_t nframes);
929 void set_frame_rate (nframes_t nframes);
932 friend class Diskstream;
934 void wait_till_butler_finished();
938 void schedule_curve_reallocation ();
939 void update_latency_compensation (bool, bool);
944 void initialize_start_and_end_locations(nframes_t start, nframes_t end);
945 bool create_session_file();
946 bool create_session_file_from_template (const string& template_path);
948 nframes_t compute_initial_length ();
951 PendingDeclickIn = 0x1,
952 PendingDeclickOut = 0x2,
953 StopPendingCapture = 0x4,
954 AutoReturning = 0x10,
955 PendingLocate = 0x20,
956 PendingSetLoop = 0x40
959 /* stuff used in process() should be close together to
963 typedef void (Session::*process_function_type)(nframes_t);
965 AudioEngine &_engine;
966 mutable gint processing_prohibited;
967 /// the function called when the main JACK process callback happens
968 process_function_type process_function;
969 process_function_type last_process_function;
970 bool waiting_for_sync_offset;
971 nframes_t _base_frame_rate;
972 nframes_t _current_frame_rate; //this includes video pullup offset
973 int transport_sub_state;
974 mutable gint _record_status;
975 nframes_t _transport_frame;
976 Location* end_location;
977 Location* start_location;
979 volatile float _transport_speed;
980 volatile float _desired_transport_speed;
981 float _last_transport_speed;
982 bool auto_play_legal;
983 nframes_t _last_slave_transport_frame;
984 nframes_t maximum_output_latency;
985 nframes_t last_stop_frame;
986 BufferSet* _scratch_buffers;
987 BufferSet* _silent_buffers;
988 BufferSet* _mix_buffers;
989 nframes_t current_block_size;
990 nframes_t _worst_output_latency;
991 nframes_t _worst_input_latency;
992 nframes_t _worst_track_latency;
995 float _meter_falloff;
996 bool _end_location_is_free;
998 void set_worst_io_latencies ();
999 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1000 set_worst_io_latencies ();
1003 void update_latency_compensation_proxy (void* ignored);
1005 void ensure_buffers (ChanCount howmany);
1007 void process_scrub (nframes_t);
1008 void process_without_events (nframes_t);
1009 void process_with_events (nframes_t);
1010 void process_audition (nframes_t);
1011 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1013 /* slave tracking */
1015 static const int delta_accumulator_size = 25;
1016 int delta_accumulator_cnt;
1017 long delta_accumulator[delta_accumulator_size];
1018 long average_slave_delta;
1020 bool have_first_delta_accumulator;
1028 SlaveState slave_state;
1029 nframes_t slave_wait_end;
1031 void reset_slave_state ();
1032 bool follow_slave (nframes_t, nframes_t);
1033 void set_slave_source (SlaveSource);
1036 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1038 void prepare_diskstreams ();
1039 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1040 int process_routes (nframes_t, nframes_t);
1041 int silent_process_routes (nframes_t, nframes_t);
1043 bool get_rec_monitors_input () {
1044 if (actively_recording()) {
1047 if (Config->get_auto_input()) {
1055 int get_transport_declick_required () {
1057 if (transport_sub_state & PendingDeclickIn) {
1058 transport_sub_state &= ~PendingDeclickIn;
1060 } else if (transport_sub_state & PendingDeclickOut) {
1067 bool maybe_stop (nframes_t limit) {
1068 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1075 bool maybe_sync_start (nframes_t&, nframes_t&);
1077 void check_declick_out ();
1079 MIDI::MachineControl* mmc;
1080 MIDI::Port* _mmc_port;
1081 MIDI::Port* _mtc_port;
1082 MIDI::Port* _midi_port;
1085 bool session_send_mmc;
1086 bool session_send_mtc;
1087 bool session_midi_feedback;
1090 nframes_t last_loopend;
1092 boost::scoped_ptr<SessionDirectory> _session_dir;
1094 RingBuffer<Event*> pending_events;
1097 void when_engine_running ();
1098 void graph_reordered ();
1100 string _current_snapshot_name;
1102 XMLTree* state_tree;
1103 bool state_was_pending;
1104 StateOfTheState _state_of_the_state;
1107 int load_options (const XMLNode&);
1108 XMLNode& get_options () const;
1109 int load_state (string snapshot_name);
1110 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1112 nframes_t _last_roll_location;
1113 nframes_t _last_record_location;
1115 bool pending_locate_roll;
1116 nframes_t pending_locate_frame;
1117 bool pending_locate_flush;
1119 bool pending_auto_loop;
1121 Sample* butler_mixdown_buffer;
1122 float* butler_gain_buffer;
1123 pthread_t butler_thread;
1124 Glib::Mutex butler_request_lock;
1125 Glib::Cond butler_paused;
1126 bool butler_should_run;
1127 mutable gint butler_should_do_transport_work;
1128 int butler_request_pipe[2];
1130 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1132 struct ButlerRequest {
1141 enum PostTransportWork {
1142 PostTransportStop = 0x1,
1143 PostTransportDisableRecord = 0x2,
1144 PostTransportPosition = 0x8,
1145 PostTransportDidRecord = 0x20,
1146 PostTransportDuration = 0x40,
1147 PostTransportLocate = 0x80,
1148 PostTransportRoll = 0x200,
1149 PostTransportAbort = 0x800,
1150 PostTransportOverWrite = 0x1000,
1151 PostTransportSpeed = 0x2000,
1152 PostTransportAudition = 0x4000,
1153 PostTransportScrub = 0x8000,
1154 PostTransportReverse = 0x10000,
1155 PostTransportInputChange = 0x20000,
1156 PostTransportCurveRealloc = 0x40000
1159 static const PostTransportWork ProcessCannotProceedMask =
1160 PostTransportWork (PostTransportInputChange|
1162 PostTransportReverse|
1163 PostTransportCurveRealloc|
1165 PostTransportAudition|
1166 PostTransportLocate|
1169 PostTransportWork post_transport_work;
1171 void summon_butler ();
1172 void schedule_butler_transport_work ();
1173 int start_butler_thread ();
1174 void terminate_butler_thread ();
1175 static void *_butler_thread_work (void *arg);
1176 void* butler_thread_work ();
1178 uint32_t cumulative_rf_motion;
1181 void set_rf_speed (float speed);
1182 void reset_rf_scale (nframes_t frames_moved);
1184 Locations _locations;
1185 void locations_changed ();
1186 void locations_added (Location*);
1187 void handle_locations_changed (Locations::LocationList&);
1189 sigc::connection auto_punch_start_changed_connection;
1190 sigc::connection auto_punch_end_changed_connection;
1191 sigc::connection auto_punch_changed_connection;
1192 void auto_punch_start_changed (Location *);
1193 void auto_punch_end_changed (Location *);
1194 void auto_punch_changed (Location *);
1196 sigc::connection auto_loop_start_changed_connection;
1197 sigc::connection auto_loop_end_changed_connection;
1198 sigc::connection auto_loop_changed_connection;
1199 void auto_loop_changed (Location *);
1201 typedef list<Event *> Events;
1203 Events immediate_events;
1204 Events::iterator next_event;
1206 /* there can only ever be one of each of these */
1208 Event *auto_loop_event;
1209 Event *punch_out_event;
1210 Event *punch_in_event;
1214 void dump_events () const;
1215 void queue_event (Event *ev);
1216 void merge_event (Event*);
1217 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1218 bool _replace_event (Event*);
1219 bool _remove_event (Event *);
1220 void _clear_event_type (Event::Type);
1222 void first_stage_init (string path, string snapshot_name);
1223 int second_stage_init (bool new_tracks);
1224 void find_current_end ();
1225 void remove_empty_sounds ();
1227 void setup_midi_control ();
1228 //int midi_read (MIDI::Port *);
1230 void enable_record ();
1232 void increment_transport_position (uint32_t val) {
1233 if (max_frames - val < _transport_frame) {
1234 _transport_frame = max_frames;
1236 _transport_frame += val;
1240 void decrement_transport_position (uint32_t val) {
1241 if (val < _transport_frame) {
1242 _transport_frame -= val;
1244 _transport_frame = 0;
1248 void post_transport_motion ();
1249 static void *session_loader_thread (void *arg);
1253 void set_next_event ();
1254 void process_event (Event *ev);
1256 /* MIDI Machine Control */
1258 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1259 //void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1260 //void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1262 void spp_start (MIDI::Parser&);
1263 void spp_continue (MIDI::Parser&);
1264 void spp_stop (MIDI::Parser&);
1266 void mmc_deferred_play (MIDI::MachineControl &);
1267 void mmc_stop (MIDI::MachineControl &);
1268 void mmc_step (MIDI::MachineControl &, int);
1269 void mmc_pause (MIDI::MachineControl &);
1270 void mmc_record_pause (MIDI::MachineControl &);
1271 void mmc_record_strobe (MIDI::MachineControl &);
1272 void mmc_record_exit (MIDI::MachineControl &);
1273 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1274 void mmc_fast_forward (MIDI::MachineControl &);
1275 void mmc_rewind (MIDI::MachineControl &);
1276 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1277 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1278 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1280 struct timeval last_mmc_step;
1283 typedef sigc::slot<bool> MidiTimeoutCallback;
1284 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1286 MidiTimeoutList midi_timeouts;
1287 bool mmc_step_timeout ();
1289 MIDI::byte mmc_buffer[32];
1290 MIDI::byte mtc_msg[16];
1291 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1292 MIDI::byte midi_msg[16];
1293 nframes_t outbound_mtc_smpte_frame;
1294 SMPTE::Time transmitting_smpte_time;
1295 int next_quarter_frame_to_send;
1297 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1298 nframes_t _frames_per_hour;
1299 nframes_t _smpte_frames_per_hour;
1300 nframes_t _smpte_offset;
1301 bool _smpte_offset_negative;
1303 /* cache the most-recently requested time conversions. This helps when we
1304 * have multiple clocks showing the same time (e.g. the transport frame) */
1305 bool last_smpte_valid;
1306 nframes_t last_smpte_when;
1307 SMPTE::Time last_smpte;
1309 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1311 int send_full_time_code(nframes_t nframes);
1312 int send_midi_time_code_for_cycle(nframes_t nframes);
1314 nframes_t adjust_apparent_position (nframes_t frames);
1316 void reset_record_status ();
1318 int no_roll (nframes_t nframes, nframes_t offset);
1320 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1321 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1323 struct MIDIRequest {
1336 MIDI::MachineControl::Command mmc_cmd;
1337 nframes_t locate_frame;
1339 // for SendMessage type
1342 MIDI::channel_t chan;
1344 MIDI::EventTwoBytes data;
1355 void *operator new(size_t ignored) {
1356 return pool.alloc ();
1359 void operator delete(void *ptr, size_t size) {
1364 static MultiAllocSingleReleasePool pool;
1367 mutable gint butler_active;
1369 void change_midi_ports ();
1370 int use_config_midi_ports ();
1372 bool waiting_to_start;
1374 void set_play_loop (bool yn);
1375 void overwrite_some_buffers (Diskstream*);
1376 void flush_all_inserts ();
1377 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1378 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1379 void force_locate (nframes_t frame, bool with_roll = false);
1380 void set_diskstream_speed (Diskstream*, float speed);
1381 void set_transport_speed (float speed, bool abort = false);
1382 void stop_transport (bool abort = false);
1383 void start_transport ();
1384 void actually_start_transport ();
1385 void realtime_stop (bool abort);
1386 void non_realtime_start_scrub ();
1387 void non_realtime_set_speed ();
1388 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1389 void non_realtime_overwrite (int entry_request_count, bool& finished);
1390 void butler_transport_work ();
1391 void post_transport ();
1392 void engine_halted ();
1393 void xrun_recovery ();
1395 TempoMap *_tempo_map;
1396 void tempo_map_changed (Change);
1398 /* edit/mix groups */
1400 int load_route_groups (const XMLNode&, bool is_edit);
1401 int load_edit_groups (const XMLNode&);
1402 int load_mix_groups (const XMLNode&);
1405 list<RouteGroup *> edit_groups;
1406 list<RouteGroup *> mix_groups;
1410 SerializedRCUManager<DiskstreamList> diskstreams;
1412 uint32_t dstream_buffer_size;
1413 int load_diskstreams (const XMLNode&);
1417 SerializedRCUManager<RouteList> routes;
1419 void add_routes (RouteList&, bool save = true);
1420 uint32_t destructive_index;
1422 int load_routes (const XMLNode&);
1423 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1427 bool solo_update_disabled;
1428 bool currently_soloing;
1430 void route_mute_changed (void *src);
1431 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1432 void catch_up_on_solo ();
1433 void update_route_solo_state ();
1434 void modify_solo_mute (bool, bool);
1435 void strip_portname_for_solo (string& portname);
1437 /* REGION MANAGEMENT */
1439 mutable Glib::Mutex region_lock;
1440 typedef map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1443 void add_region (boost::shared_ptr<Region>);
1444 void region_changed (Change, boost::weak_ptr<Region>);
1445 void remove_region (boost::weak_ptr<Region>);
1447 int load_regions (const XMLNode& node);
1451 mutable Glib::Mutex source_lock;
1452 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1456 int load_sources (const XMLNode& node);
1457 XMLNode& get_sources_as_xml ();
1459 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1463 mutable Glib::Mutex playlist_lock;
1464 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1465 PlaylistList playlists;
1466 PlaylistList unused_playlists;
1468 int load_playlists (const XMLNode&);
1469 int load_unused_playlists (const XMLNode&);
1470 void remove_playlist (boost::weak_ptr<Playlist>);
1471 void track_playlist (bool, boost::weak_ptr<Playlist>);
1473 boost::shared_ptr<Playlist> playlist_factory (string name);
1474 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1476 void playlist_length_changed ();
1477 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1479 /* NAMED SELECTIONS */
1481 mutable Glib::Mutex named_selection_lock;
1482 typedef set<NamedSelection *> NamedSelectionList;
1483 NamedSelectionList named_selections;
1485 int load_named_selections (const XMLNode&);
1487 NamedSelection *named_selection_factory (string name);
1488 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1490 /* CURVES and AUTOMATION LISTS */
1491 std::map<PBD::ID, Curve*> curves;
1492 std::map<PBD::ID, AutomationList*> automation_lists;
1494 /* DEFAULT FADE CURVES */
1496 float default_fade_steepness;
1497 float default_fade_msecs;
1501 boost::shared_ptr<Auditioner> auditioner;
1502 void set_audition (boost::shared_ptr<Region>);
1503 void non_realtime_set_audition ();
1504 boost::shared_ptr<Region> pending_audition_region;
1510 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1512 /* INSERT AND SEND MANAGEMENT */
1514 list<PortInsert *> _port_inserts;
1515 list<PluginInsert *> _plugin_inserts;
1516 list<Send *> _sends;
1517 boost::dynamic_bitset<uint32_t> send_bitset;
1518 boost::dynamic_bitset<uint32_t> insert_bitset;
1520 uint32_t insert_cnt;
1523 void add_processor (Processor *);
1524 void remove_processor (Processor *);
1528 struct space_and_path {
1529 uint32_t blocks; /* 4kB blocks */
1537 struct space_and_path_ascending_cmp {
1538 bool operator() (space_and_path a, space_and_path b) {
1539 return a.blocks > b.blocks;
1543 void setup_raid_path (string path);
1545 vector<space_and_path> session_dirs;
1546 vector<space_and_path>::iterator last_rr_session_dir;
1547 uint32_t _total_free_4k_blocks;
1548 Glib::Mutex space_lock;
1550 string get_best_session_directory_for_new_source ();
1551 void refresh_disk_space ();
1553 mutable gint _playback_load;
1554 mutable gint _capture_load;
1555 mutable gint _playback_load_min;
1556 mutable gint _capture_load_min;
1560 typedef list<Bundle *> BundleList;
1561 mutable Glib::Mutex bundle_lock;
1562 BundleList _bundles;
1563 int load_bundles (const XMLNode&);
1565 void reverse_diskstream_buffers ();
1567 UndoHistory _history;
1568 UndoTransaction* current_trans;
1570 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1571 GlobalRouteMeterState get_global_route_metering ();
1573 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1574 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1576 void set_global_mute (GlobalRouteBooleanState s, void *src);
1577 void set_global_solo (GlobalRouteBooleanState s, void *src);
1578 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1580 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1581 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1582 void reset_jack_connection (jack_client_t* jack);
1583 void record_enable_change_all (bool yn);
1585 XMLNode& state(bool);
1595 Click (nframes_t s, nframes_t d, const Sample *b)
1596 : start (s), duration (d), data (b) { offset = 0; }
1598 void *operator new(size_t ignored) {
1599 return pool.alloc ();
1602 void operator delete(void *ptr, size_t size) {
1610 typedef list<Click*> Clicks;
1614 boost::shared_ptr<IO> _click_io;
1616 Sample* click_emphasis_data;
1617 nframes_t click_length;
1618 nframes_t click_emphasis_length;
1619 mutable Glib::RWLock click_lock;
1621 static const Sample default_click[];
1622 static const nframes_t default_click_length;
1623 static const Sample default_click_emphasis[];
1624 static const nframes_t default_click_emphasis_length;
1627 void setup_click_sounds (int which);
1628 void clear_clicks ();
1629 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1631 vector<Route*> master_outs;
1633 /* range playback */
1635 list<AudioRange> current_audio_range;
1637 void set_play_range (bool yn);
1638 void setup_auto_play ();
1643 boost::shared_ptr<IO> _master_out;
1644 boost::shared_ptr<IO> _control_out;
1646 gain_t* _gain_automation_buffer;
1647 pan_t** _pan_automation_buffer;
1648 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1649 uint32_t _npan_buffers;
1651 nframes_t _automation_interval;
1655 long _vst_callback (VSTPlugin*,
1662 /* number of hardware ports we're using,
1663 based on max (requested,available)
1666 uint32_t n_physical_outputs;
1667 uint32_t n_physical_inputs;
1669 void remove_pending_capture_state ();
1671 int find_all_sources (std::string path, std::set<std::string>& result);
1672 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1674 LayerModel layer_model;
1675 CrossfadeModel xfade_model;
1677 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1678 Glib::Mutex controllables_lock;
1679 Controllables controllables;
1681 void reset_native_file_format();
1682 bool first_file_data_format_reset;
1683 bool first_file_header_format_reset;
1685 void config_changed (const char*);
1687 XMLNode& get_control_protocol_state ();
1691 } // namespace ARDOUR
1693 #endif /* __ardour_session_h__ */