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;
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;
182 boost::shared_ptr<Region> region;
184 list<AudioRange> audio_range;
185 list<MusicRange> music_range;
187 Event(Type t, Action a, nframes_t when, nframes_t where, float spd, bool yn = false)
191 target_frame (where),
195 void set_ptr (void* p) {
199 bool before (const Event& other) const {
200 return action_frame < other.action_frame;
203 bool after (const Event& other) const {
204 return action_frame > other.action_frame;
207 static bool compare (const Event *e1, const Event *e2) {
208 return e1->before (*e2);
211 void *operator new (size_t ignored) {
212 return pool.alloc ();
215 void operator delete(void *ptr, size_t size) {
219 static const nframes_t Immediate = 0;
222 static MultiAllocSingleReleasePool pool;
225 /* creating from an XML file */
227 Session (AudioEngine&,
228 const string& fullpath,
229 const string& snapshot_name,
230 string mix_template = "");
232 /* creating a new Session */
234 Session (AudioEngine&,
236 string snapshot_name,
237 AutoConnectOption input_auto_connect,
238 AutoConnectOption output_auto_connect,
239 uint32_t control_out_channels,
240 uint32_t master_out_channels,
241 uint32_t n_physical_in,
242 uint32_t n_physical_out,
243 nframes_t initial_length);
247 string path() const { return _path; }
248 string name() const { return _name; }
249 string snap_name() const { return _current_snapshot_name; }
250 string raid_path () const;
252 void set_snap_name ();
256 bool dirty() const { return _state_of_the_state & Dirty; }
257 void set_deletion_in_progress ();
258 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
259 sigc::signal<void> DirtyChanged;
261 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
263 std::string automation_dir () const;
265 Glib::ustring peak_path (Glib::ustring) const;
267 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
268 static string change_midi_path_by_name (string oldpath, string oldname, string newname, bool destructive);
270 string peak_path_from_audio_path (string) const;
271 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
272 string midi_path_from_name (string);
274 void process (nframes_t nframes);
276 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
277 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
278 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
280 void add_diskstream (boost::shared_ptr<Diskstream>);
281 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
282 boost::shared_ptr<Diskstream> diskstream_by_name (string name);
284 bool have_captured() const { return _have_captured; }
286 void refill_all_diskstream_buffers ();
287 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
289 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
290 uint32_t n_diskstreams() const;
292 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
293 typedef std::list<boost::shared_ptr<Route> > RouteList;
295 boost::shared_ptr<RouteList> get_routes() const {
296 return routes.reader ();
299 uint32_t nroutes() const { return routes.reader()->size(); }
300 uint32_t ntracks () const;
301 uint32_t nbusses () const;
303 struct RoutePublicOrderSorter {
304 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
307 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
308 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
309 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
311 boost::shared_ptr<Route> route_by_name (string);
312 boost::shared_ptr<Route> route_by_id (PBD::ID);
313 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
315 bool route_name_unique (string) const;
317 bool get_record_enabled() const {
318 return (record_status () >= Enabled);
321 RecordState record_status() const {
322 return (RecordState) g_atomic_int_get (&_record_status);
325 bool actively_recording () {
326 return record_status() == Recording;
329 bool record_enabling_legal () const;
330 void maybe_enable_record ();
331 void disable_record (bool rt_context, bool force = false);
332 void step_back_from_record ();
334 void maybe_write_autosave ();
336 /* Proxy signal for region hidden changes */
338 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
340 /* Emitted when all i/o connections are complete */
342 sigc::signal<void> IOConnectionsComplete;
344 /* Record status signals */
346 sigc::signal<void> RecordStateChanged;
348 /* Transport mechanism signals */
350 sigc::signal<void> TransportStateChange; /* generic */
351 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
352 sigc::signal<void> DurationChanged;
353 sigc::signal<void> HaltOnXrun;
354 sigc::signal<void> TransportLooped;
356 sigc::signal<void,RouteList&> RouteAdded;
358 void request_roll_at_and_return (nframes_t start, nframes_t return_to);
359 void request_bounded_roll (nframes_t start, nframes_t end);
360 void request_stop (bool abort = false);
361 void request_locate (nframes_t frame, bool with_roll = false);
363 void request_play_loop (bool yn);
364 bool get_play_loop () const { return play_loop; }
366 nframes_t last_transport_start() const { return _last_roll_location; }
367 void goto_end () { request_locate (end_location->start(), false);}
368 void goto_start () { request_locate (start_location->start(), false); }
369 void set_session_start (nframes_t start) { start_location->set_start(start); }
370 void set_session_end (nframes_t end) { end_location->set_start(end); _end_location_is_free = false; }
371 void use_rf_shuttle_speed ();
372 void allow_auto_play (bool yn);
373 void request_transport_speed (float speed);
374 void request_overwrite_buffer (Diskstream*);
375 void request_diskstream_speed (Diskstream&, float speed);
376 void request_input_change_handling ();
378 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
379 bool transport_locked () const;
382 //int wipe_diskstream (AudioDiskstream *);
384 int remove_region_from_region_list (boost::shared_ptr<Region>);
386 nframes_t get_maximum_extent () const;
387 nframes_t current_end_frame() const { return end_location->start(); }
388 nframes_t current_start_frame() const { return start_location->start(); }
389 nframes_t frame_rate() const { return _current_frame_rate; }
390 nframes_t frames_per_hour() const { return _frames_per_hour; }
392 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
393 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
395 float smpte_frames_per_second() const;
396 bool smpte_drop_frames() const;
400 Locations *locations() { return &_locations; }
402 sigc::signal<void,Location*> auto_loop_location_changed;
403 sigc::signal<void,Location*> auto_punch_location_changed;
404 sigc::signal<void> locations_modified;
406 void set_auto_punch_location (Location *);
407 void set_auto_loop_location (Location *);
408 int location_name(string& result, string base = string(""));
410 void reset_input_monitor_state ();
412 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
413 void remove_event (nframes_t frame, Event::Type type);
414 void clear_events (Event::Type type);
416 nframes_t get_block_size() const { return current_block_size; }
417 nframes_t worst_output_latency () const { return _worst_output_latency; }
418 nframes_t worst_input_latency () const { return _worst_input_latency; }
419 nframes_t worst_track_latency () const { return _worst_track_latency; }
421 int save_state (string snapshot_name, bool pending = false);
422 int restore_state (string snapshot_name);
423 int save_template (string template_name);
424 int save_history (string snapshot_name = "");
425 int restore_history (string snapshot_name);
426 void remove_state (string snapshot_name);
427 void rename_state (string old_name, string new_name);
428 void remove_pending_capture_state ();
430 sigc::signal<void,string> StateSaved;
431 sigc::signal<void> StateReady;
433 XMLNode& get_state();
434 int set_state(const XMLNode& node); // not idempotent
435 XMLNode& get_template();
437 /// The instant xml file is written to the session directory
438 void add_instant_xml (XMLNode&);
439 XMLNode * instant_xml (const std::string& str);
441 enum StateOfTheState {
446 InitialConnecting = 0x8,
451 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
453 RouteGroup* add_edit_group (string);
454 RouteGroup* add_mix_group (string);
456 void remove_edit_group (RouteGroup&);
457 void remove_mix_group (RouteGroup&);
459 RouteGroup *mix_group_by_name (string);
460 RouteGroup *edit_group_by_name (string);
462 sigc::signal<void,RouteGroup*> edit_group_added;
463 sigc::signal<void,RouteGroup*> mix_group_added;
464 sigc::signal<void> edit_group_removed;
465 sigc::signal<void> mix_group_removed;
467 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
468 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
473 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
474 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
479 /* fundamental operations. duh. */
481 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
482 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
484 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (TrackMode mode = Normal, uint32_t how_many = 1);
485 //boost::shared_ptr<Route> new_midi_route (uint32_t how_many = 1);
487 void remove_route (boost::shared_ptr<Route>);
488 void resort_routes ();
489 void resort_routes_using (boost::shared_ptr<RouteList>);
491 void set_remote_control_ids();
493 AudioEngine & engine() { return _engine; }
494 AudioEngine const & engine () const { return _engine; }
501 nframes_t transport_frame () const {return _transport_frame; }
502 nframes_t audible_frame () const;
503 nframes64_t requested_return_frame() const { return _requested_return_frame; }
517 int set_smpte_format (SmpteFormat);
518 void sync_time_vars();
520 void bbt_time (nframes_t when, BBT_Time&);
521 void smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const;
522 void sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
523 void smpte_time (SMPTE::Time &);
524 void smpte_time (nframes_t when, SMPTE::Time&);
525 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
527 void smpte_duration (nframes_t, SMPTE::Time&) const;
528 void smpte_duration_string (char *, nframes_t) const;
530 void set_smpte_offset (nframes_t);
531 nframes_t smpte_offset () const { return _smpte_offset; }
532 void set_smpte_offset_negative (bool);
533 bool smpte_offset_negative () const { return _smpte_offset_negative; }
535 nframes_t convert_to_frames_at (nframes_t position, AnyTime&);
537 static sigc::signal<void> StartTimeChanged;
538 static sigc::signal<void> EndTimeChanged;
539 static sigc::signal<void> SMPTEOffsetChanged;
541 void request_slave_source (SlaveSource);
542 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
544 float transport_speed() const { return _transport_speed; }
545 bool transport_stopped() const { return _transport_speed == 0.0f; }
546 bool transport_rolling() const { return _transport_speed != 0.0f; }
548 void set_silent (bool yn);
549 bool silent () { return _silent; }
551 int jack_slave_sync (nframes_t);
553 TempoMap& tempo_map() { return *_tempo_map; }
557 sigc::signal<void,boost::shared_ptr<Region> > RegionAdded;
558 sigc::signal<void,boost::shared_ptr<Region> > RegionRemoved;
560 int region_name (string& result, string base = string(""), bool newlevel = false) const;
561 string new_region_name (string);
562 string path_from_region_name (DataType type, string name, string identifier);
564 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>);
566 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
568 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
569 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
570 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
572 template<class T> void foreach_region (T *obj, void (T::*func)(boost::shared_ptr<Region>));
574 /* source management */
576 struct import_status : public InterThreadInfo {
582 volatile bool freeze;
583 std::vector<Glib::ustring> paths;
590 void import_audiofiles (import_status&);
591 bool sample_rate_convert (import_status&, string infile, string& outfile);
592 string build_tmp_convert_name (string file);
594 SlaveSource post_export_slave;
595 nframes_t post_export_position;
597 int start_audio_export (ARDOUR::AudioExportSpecification&);
598 int stop_audio_export (ARDOUR::AudioExportSpecification&);
599 void finalize_audio_export ();
601 void add_source (boost::shared_ptr<Source>);
602 void remove_source (boost::weak_ptr<Source>);
604 struct cleanup_report {
605 vector<string> paths;
609 int cleanup_sources (cleanup_report&);
610 int cleanup_trash_sources (cleanup_report&);
612 int destroy_region (boost::shared_ptr<Region>);
613 int destroy_regions (std::list<boost::shared_ptr<Region> >);
615 int remove_last_capture ();
617 /* handlers should return -1 for "stop cleanup", 0 for
618 "yes, delete this playlist" and 1 for "no, don't delete
622 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
624 /* handlers should return !0 for use pending state, 0 for
628 static sigc::signal<int> AskAboutPendingState;
630 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
632 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
634 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
635 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
637 /* playlist management */
639 boost::shared_ptr<Playlist> playlist_by_name (string name);
640 void add_playlist (boost::shared_ptr<Playlist>);
641 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
642 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
644 uint32_t n_playlists() const;
646 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
647 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
649 /* named selections */
651 NamedSelection* named_selection_by_name (string name);
652 void add_named_selection (NamedSelection *);
653 void remove_named_selection (NamedSelection *);
655 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
656 sigc::signal<void> NamedSelectionAdded;
657 sigc::signal<void> NamedSelectionRemoved;
659 /* Curves and AutomationLists (TODO when they go away) */
660 void add_curve(Curve*);
661 void add_automation_list(AutomationList*);
665 float get_default_fade_length () const { return default_fade_msecs; }
666 float get_default_fade_steepness () const { return default_fade_steepness; }
667 void set_default_fade (float steepness, float msecs);
671 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
672 void audition_playlist ();
673 void audition_region (boost::shared_ptr<Region>);
674 void cancel_audition ();
675 bool is_auditioning () const;
677 sigc::signal<void,bool> AuditionActive;
679 /* flattening stuff */
681 int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite,
682 vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot);
684 int freeze (InterThreadInfo&);
686 /* session-wide solo/mute/rec-enable */
688 bool soloing() const { return currently_soloing; }
690 void set_all_solo (bool);
691 void set_all_mute (bool);
693 sigc::signal<void,bool> SoloActive;
694 sigc::signal<void> SoloChanged;
696 void record_disenable_all ();
697 void record_enable_all ();
699 /* control/master out */
701 boost::shared_ptr<IO> control_out() const { return _control_out; }
702 boost::shared_ptr<IO> master_out() const { return _master_out; }
704 /* insert/send management */
706 uint32_t n_port_inserts() const { return _port_inserts.size(); }
707 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
708 uint32_t n_sends() const { return _sends.size(); }
710 static void set_disable_all_loaded_plugins (bool yn) {
711 _disable_all_loaded_plugins = yn;
713 static bool get_disable_all_loaded_plugins() {
714 return _disable_all_loaded_plugins;
717 uint32_t next_send_id();
718 uint32_t next_insert_id();
719 void mark_send_id (uint32_t);
720 void mark_insert_id (uint32_t);
722 /* s/w "RAID" management */
724 nframes_t available_capture_duration();
728 void foreach_bundle (sigc::slot<void, boost::shared_ptr<Bundle> >);
729 void add_bundle (boost::shared_ptr<Bundle>);
730 void remove_bundle (boost::shared_ptr<Bundle>);
731 boost::shared_ptr<Bundle> bundle_by_name (string) const;
733 sigc::signal<void,boost::shared_ptr<Bundle> > BundleAdded;
734 sigc::signal<void,boost::shared_ptr<Bundle> > BundleRemoved;
738 int set_mtc_port (string port_tag);
739 int set_mmc_port (string port_tag);
740 int set_midi_port (string port_tag);
741 MIDI::Port *mtc_port() const { return _mtc_port; }
742 MIDI::Port *mmc_port() const { return _mmc_port; }
743 MIDI::Port *midi_port() const { return _midi_port; }
745 sigc::signal<void> MTC_PortChanged;
746 sigc::signal<void> MMC_PortChanged;
747 sigc::signal<void> MIDI_PortChanged;
749 void set_trace_midi_input (bool, MIDI::Port* port = 0);
750 void set_trace_midi_output (bool, MIDI::Port* port = 0);
752 bool get_trace_midi_input(MIDI::Port *port = 0);
753 bool get_trace_midi_output(MIDI::Port *port = 0);
755 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
757 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
759 void set_mmc_receive_device_id (uint32_t id);
760 void set_mmc_send_device_id (uint32_t id);
764 void start_scrub (nframes_t where);
766 void set_scrub_speed (float);
767 nframes_t scrub_buffer_size() const;
768 sigc::signal<void> ScrubReady;
770 /* History (for editors, mixers, UIs etc.) */
772 /** Undo some transactions.
773 * @param n Number of transactions to undo.
775 void undo (uint32_t n) {
779 void redo (uint32_t n) {
783 UndoHistory& history() { return _history; }
785 uint32_t undo_depth() const { return _history.undo_depth(); }
786 uint32_t redo_depth() const { return _history.redo_depth(); }
787 string next_undo() const { return _history.next_undo(); }
788 string next_redo() const { return _history.next_redo(); }
790 void begin_reversible_command (const string& cmd_name);
791 void commit_reversible_command (Command* cmd = 0);
793 void add_command (Command *const cmd) {
794 current_trans->add_command (cmd);
797 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
799 // these commands are implemented in libs/ardour/session_command.cc
800 Command* memento_command_factory(XMLNode* n);
801 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
803 Command* global_state_command_factory (const XMLNode& n);
805 class GlobalRouteStateCommand : public Command
808 GlobalRouteStateCommand (Session&, void*);
809 GlobalRouteStateCommand (Session&, const XMLNode& node);
810 int set_state (const XMLNode&);
811 XMLNode& get_state ();
814 GlobalRouteBooleanState before, after;
820 class GlobalSoloStateCommand : public GlobalRouteStateCommand
823 GlobalSoloStateCommand (Session &, void *src);
824 GlobalSoloStateCommand (Session&, const XMLNode&);
825 void operator()(); //redo
827 XMLNode &get_state();
831 class GlobalMuteStateCommand : public GlobalRouteStateCommand
834 GlobalMuteStateCommand(Session &, void *src);
835 GlobalMuteStateCommand (Session&, const XMLNode&);
836 void operator()(); // redo
838 XMLNode &get_state();
842 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
845 GlobalRecordEnableStateCommand(Session &, void *src);
846 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
847 void operator()(); // redo
849 XMLNode &get_state();
853 class GlobalMeteringStateCommand : public Command
856 GlobalMeteringStateCommand(Session &, void *src);
857 GlobalMeteringStateCommand (Session&, const XMLNode&);
860 XMLNode &get_state();
861 int set_state (const XMLNode&);
867 GlobalRouteMeterState before;
868 GlobalRouteMeterState after;
873 boost::shared_ptr<IO> click_io() { return _click_io; }
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 typedef float (*compute_peak_t) (Sample *, nframes_t, float);
918 typedef void (*find_peaks_t) (Sample *, nframes_t, float *, float*);
919 typedef void (*apply_gain_to_buffer_t) (Sample *, nframes_t, float);
920 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, nframes_t, float);
921 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, nframes_t);
923 static compute_peak_t compute_peak;
924 static find_peaks_t find_peaks;
925 static apply_gain_to_buffer_t apply_gain_to_buffer;
926 static mix_buffers_with_gain_t mix_buffers_with_gain;
927 static mix_buffers_no_gain_t mix_buffers_no_gain;
929 static sigc::signal<void> SendFeedback;
933 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
935 void add_controllable (boost::shared_ptr<PBD::Controllable>);
936 void remove_controllable (PBD::Controllable*);
939 friend class AudioEngine;
940 void set_block_size (nframes_t nframes);
941 void set_frame_rate (nframes_t nframes);
944 friend class Diskstream;
946 void wait_till_butler_finished();
950 void schedule_curve_reallocation ();
951 void update_latency_compensation (bool, bool);
954 int create (bool& new_session, const string& mix_template, nframes_t initial_length);
957 nframes_t compute_initial_length ();
960 PendingDeclickIn = 0x1,
961 PendingDeclickOut = 0x2,
962 StopPendingCapture = 0x4,
963 AutoReturning = 0x10,
964 PendingLocate = 0x20,
965 PendingSetLoop = 0x40
968 /* stuff used in process() should be close together to
972 typedef void (Session::*process_function_type)(nframes_t);
974 AudioEngine& _engine;
975 mutable gint processing_prohibited;
976 process_function_type process_function;
977 process_function_type last_process_function;
978 bool waiting_for_sync_offset;
979 nframes_t _base_frame_rate;
980 nframes_t _current_frame_rate; //this includes video pullup offset
981 int transport_sub_state;
982 mutable gint _record_status;
983 volatile nframes_t _transport_frame;
984 Location* end_location;
985 Location* start_location;
988 volatile float _transport_speed;
989 volatile float _desired_transport_speed;
990 float _last_transport_speed;
991 bool auto_play_legal;
992 nframes_t _last_slave_transport_frame;
993 nframes_t maximum_output_latency;
994 nframes_t last_stop_frame;
995 volatile nframes64_t _requested_return_frame;
996 BufferSet* _scratch_buffers;
997 BufferSet* _silent_buffers;
998 BufferSet* _mix_buffers;
999 nframes_t current_block_size;
1000 nframes_t _worst_output_latency;
1001 nframes_t _worst_input_latency;
1002 nframes_t _worst_track_latency;
1003 bool _have_captured;
1005 float _meter_falloff;
1006 bool _end_location_is_free;
1008 void set_worst_io_latencies ();
1009 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1010 set_worst_io_latencies ();
1013 void update_latency_compensation_proxy (void* ignored);
1015 void ensure_buffers (ChanCount howmany);
1017 void process_scrub (nframes_t);
1018 void process_without_events (nframes_t);
1019 void process_with_events (nframes_t);
1020 void process_audition (nframes_t);
1021 int process_export (nframes_t, ARDOUR::AudioExportSpecification*);
1023 /* slave tracking */
1025 static const int delta_accumulator_size = 25;
1026 int delta_accumulator_cnt;
1027 long delta_accumulator[delta_accumulator_size];
1028 long average_slave_delta;
1030 bool have_first_delta_accumulator;
1038 SlaveState slave_state;
1039 nframes_t slave_wait_end;
1041 void reset_slave_state ();
1042 bool follow_slave (nframes_t, nframes_t);
1043 void set_slave_source (SlaveSource);
1046 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1048 void prepare_diskstreams ();
1049 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1050 int process_routes (nframes_t, nframes_t);
1051 int silent_process_routes (nframes_t, nframes_t);
1053 bool get_rec_monitors_input () {
1054 if (actively_recording()) {
1057 if (Config->get_auto_input()) {
1065 int get_transport_declick_required () {
1067 if (transport_sub_state & PendingDeclickIn) {
1068 transport_sub_state &= ~PendingDeclickIn;
1070 } else if (transport_sub_state & PendingDeclickOut) {
1077 bool maybe_stop (nframes_t limit) {
1078 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1085 bool maybe_sync_start (nframes_t&, nframes_t&);
1087 void check_declick_out ();
1089 MIDI::MachineControl* mmc;
1090 MIDI::Port* _mmc_port;
1091 MIDI::Port* _mtc_port;
1092 MIDI::Port* _midi_port;
1095 bool session_send_mmc;
1096 bool session_send_mtc;
1097 bool session_midi_feedback;
1100 nframes_t last_loopend;
1102 boost::scoped_ptr<SessionDirectory> _session_dir;
1104 RingBuffer<Event*> pending_events;
1107 void when_engine_running ();
1108 void graph_reordered ();
1110 string _current_snapshot_name;
1112 XMLTree* state_tree;
1113 bool state_was_pending;
1114 StateOfTheState _state_of_the_state;
1117 int load_options (const XMLNode&);
1118 XMLNode& get_options () const;
1119 int load_state (string snapshot_name);
1120 bool save_config_options_predicate (ConfigVariableBase::Owner owner) const;
1122 nframes_t _last_roll_location;
1123 nframes_t _last_record_location;
1125 bool pending_locate_roll;
1126 nframes_t pending_locate_frame;
1127 bool pending_locate_flush;
1129 bool pending_auto_loop;
1131 Sample* butler_mixdown_buffer;
1132 float* butler_gain_buffer;
1133 pthread_t butler_thread;
1134 Glib::Mutex butler_request_lock;
1135 Glib::Cond butler_paused;
1136 bool butler_should_run;
1137 mutable gint butler_should_do_transport_work;
1138 int butler_request_pipe[2];
1140 inline bool transport_work_requested() const { return g_atomic_int_get(&butler_should_do_transport_work); }
1142 struct ButlerRequest {
1151 enum PostTransportWork {
1152 PostTransportStop = 0x1,
1153 PostTransportDisableRecord = 0x2,
1154 PostTransportPosition = 0x8,
1155 PostTransportDidRecord = 0x20,
1156 PostTransportDuration = 0x40,
1157 PostTransportLocate = 0x80,
1158 PostTransportRoll = 0x200,
1159 PostTransportAbort = 0x800,
1160 PostTransportOverWrite = 0x1000,
1161 PostTransportSpeed = 0x2000,
1162 PostTransportAudition = 0x4000,
1163 PostTransportScrub = 0x8000,
1164 PostTransportReverse = 0x10000,
1165 PostTransportInputChange = 0x20000,
1166 PostTransportCurveRealloc = 0x40000
1169 static const PostTransportWork ProcessCannotProceedMask =
1170 PostTransportWork (PostTransportInputChange|
1172 PostTransportReverse|
1173 PostTransportCurveRealloc|
1175 PostTransportAudition|
1176 PostTransportLocate|
1179 PostTransportWork post_transport_work;
1181 void summon_butler ();
1182 void schedule_butler_transport_work ();
1183 int start_butler_thread ();
1184 void terminate_butler_thread ();
1185 static void *_butler_thread_work (void *arg);
1186 void* butler_thread_work ();
1188 uint32_t cumulative_rf_motion;
1191 void set_rf_speed (float speed);
1192 void reset_rf_scale (nframes_t frames_moved);
1194 Locations _locations;
1195 void locations_changed ();
1196 void locations_added (Location*);
1197 void handle_locations_changed (Locations::LocationList&);
1199 sigc::connection auto_punch_start_changed_connection;
1200 sigc::connection auto_punch_end_changed_connection;
1201 sigc::connection auto_punch_changed_connection;
1202 void auto_punch_start_changed (Location *);
1203 void auto_punch_end_changed (Location *);
1204 void auto_punch_changed (Location *);
1206 sigc::connection auto_loop_start_changed_connection;
1207 sigc::connection auto_loop_end_changed_connection;
1208 sigc::connection auto_loop_changed_connection;
1209 void auto_loop_changed (Location *);
1211 typedef list<Event *> Events;
1213 Events immediate_events;
1214 Events::iterator next_event;
1216 /* there can only ever be one of each of these */
1218 Event *auto_loop_event;
1219 Event *punch_out_event;
1220 Event *punch_in_event;
1224 void dump_events () const;
1225 void queue_event (Event *ev);
1226 void merge_event (Event*);
1227 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1228 bool _replace_event (Event*);
1229 bool _remove_event (Event *);
1230 void _clear_event_type (Event::Type);
1232 void first_stage_init (string path, string snapshot_name);
1233 int second_stage_init (bool new_tracks);
1234 void find_current_end ();
1235 void remove_empty_sounds ();
1237 void setup_midi_control ();
1238 //int midi_read (MIDI::Port *);
1240 void enable_record ();
1242 void increment_transport_position (uint32_t val) {
1243 if (max_frames - val < _transport_frame) {
1244 _transport_frame = max_frames;
1246 _transport_frame += val;
1250 void decrement_transport_position (uint32_t val) {
1251 if (val < _transport_frame) {
1252 _transport_frame -= val;
1254 _transport_frame = 0;
1258 void post_transport_motion ();
1259 static void *session_loader_thread (void *arg);
1263 void set_next_event ();
1264 void process_event (Event *ev);
1266 /* MIDI Machine Control */
1268 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1269 //void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1270 //void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1272 void spp_start (MIDI::Parser&);
1273 void spp_continue (MIDI::Parser&);
1274 void spp_stop (MIDI::Parser&);
1276 void mmc_deferred_play (MIDI::MachineControl &);
1277 void mmc_stop (MIDI::MachineControl &);
1278 void mmc_step (MIDI::MachineControl &, int);
1279 void mmc_pause (MIDI::MachineControl &);
1280 void mmc_record_pause (MIDI::MachineControl &);
1281 void mmc_record_strobe (MIDI::MachineControl &);
1282 void mmc_record_exit (MIDI::MachineControl &);
1283 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1284 void mmc_fast_forward (MIDI::MachineControl &);
1285 void mmc_rewind (MIDI::MachineControl &);
1286 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1287 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1288 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1290 struct timeval last_mmc_step;
1293 typedef sigc::slot<bool> MidiTimeoutCallback;
1294 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1296 MidiTimeoutList midi_timeouts;
1297 bool mmc_step_timeout ();
1299 MIDI::byte mmc_buffer[32];
1300 MIDI::byte mtc_msg[16];
1301 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1302 MIDI::byte midi_msg[16];
1303 nframes_t outbound_mtc_smpte_frame;
1304 SMPTE::Time transmitting_smpte_time;
1305 int next_quarter_frame_to_send;
1307 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1308 nframes_t _frames_per_hour;
1309 nframes_t _smpte_frames_per_hour;
1310 nframes_t _smpte_offset;
1311 bool _smpte_offset_negative;
1313 /* cache the most-recently requested time conversions. This helps when we
1314 * have multiple clocks showing the same time (e.g. the transport frame) */
1315 bool last_smpte_valid;
1316 nframes_t last_smpte_when;
1317 SMPTE::Time last_smpte;
1319 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1321 int send_full_time_code(nframes_t nframes);
1322 int send_midi_time_code_for_cycle(nframes_t nframes);
1324 nframes_t adjust_apparent_position (nframes_t frames);
1326 void reset_record_status ();
1328 int no_roll (nframes_t nframes, nframes_t offset);
1330 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1331 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1333 struct MIDIRequest {
1346 MIDI::MachineControl::Command mmc_cmd;
1347 nframes_t locate_frame;
1349 // for SendMessage type
1352 MIDI::channel_t chan;
1354 MIDI::EventTwoBytes data;
1365 void *operator new(size_t ignored) {
1366 return pool.alloc ();
1369 void operator delete(void *ptr, size_t size) {
1374 static MultiAllocSingleReleasePool pool;
1377 mutable gint butler_active;
1379 void change_midi_ports ();
1380 int use_config_midi_ports ();
1382 bool waiting_to_start;
1384 void set_play_loop (bool yn);
1385 void overwrite_some_buffers (Diskstream*);
1386 void flush_all_inserts ();
1387 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1388 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1389 void force_locate (nframes_t frame, bool with_roll = false);
1390 void set_diskstream_speed (Diskstream*, float speed);
1391 void set_transport_speed (float speed, bool abort = false);
1392 void stop_transport (bool abort = false);
1393 void start_transport ();
1394 void actually_start_transport ();
1395 void realtime_stop (bool abort);
1396 void non_realtime_start_scrub ();
1397 void non_realtime_set_speed ();
1398 void non_realtime_locate ();
1399 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1400 void non_realtime_overwrite (int entry_request_count, bool& finished);
1401 void butler_transport_work ();
1402 void post_transport ();
1403 void engine_halted ();
1404 void xrun_recovery ();
1406 TempoMap *_tempo_map;
1407 void tempo_map_changed (Change);
1409 /* edit/mix groups */
1411 int load_route_groups (const XMLNode&, bool is_edit);
1412 int load_edit_groups (const XMLNode&);
1413 int load_mix_groups (const XMLNode&);
1416 list<RouteGroup *> edit_groups;
1417 list<RouteGroup *> mix_groups;
1421 SerializedRCUManager<DiskstreamList> diskstreams;
1423 uint32_t dstream_buffer_size;
1424 int load_diskstreams (const XMLNode&);
1428 SerializedRCUManager<RouteList> routes;
1430 void add_routes (RouteList&, bool save);
1431 uint32_t destructive_index;
1433 int load_routes (const XMLNode&);
1434 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1438 bool solo_update_disabled;
1439 bool currently_soloing;
1441 void route_mute_changed (void *src);
1442 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1443 void catch_up_on_solo ();
1444 void update_route_solo_state ();
1445 void modify_solo_mute (bool, bool);
1446 void strip_portname_for_solo (string& portname);
1448 /* REGION MANAGEMENT */
1450 mutable Glib::Mutex region_lock;
1451 typedef map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1454 void add_region (boost::shared_ptr<Region>);
1455 void region_changed (Change, boost::weak_ptr<Region>);
1456 void remove_region (boost::weak_ptr<Region>);
1458 int load_regions (const XMLNode& node);
1462 mutable Glib::Mutex source_lock;
1463 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1467 int load_sources (const XMLNode& node);
1468 XMLNode& get_sources_as_xml ();
1470 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1474 mutable Glib::Mutex playlist_lock;
1475 typedef set<boost::shared_ptr<Playlist> > PlaylistList;
1476 PlaylistList playlists;
1477 PlaylistList unused_playlists;
1479 int load_playlists (const XMLNode&);
1480 int load_unused_playlists (const XMLNode&);
1481 void remove_playlist (boost::weak_ptr<Playlist>);
1482 void track_playlist (bool, boost::weak_ptr<Playlist>);
1484 boost::shared_ptr<Playlist> playlist_factory (string name);
1485 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1487 void playlist_length_changed ();
1488 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1490 /* NAMED SELECTIONS */
1492 mutable Glib::Mutex named_selection_lock;
1493 typedef set<NamedSelection *> NamedSelectionList;
1494 NamedSelectionList named_selections;
1496 int load_named_selections (const XMLNode&);
1498 NamedSelection *named_selection_factory (string name);
1499 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1501 /* CURVES and AUTOMATION LISTS */
1502 std::map<PBD::ID, Curve*> curves;
1503 std::map<PBD::ID, AutomationList*> automation_lists;
1505 /* DEFAULT FADE CURVES */
1507 float default_fade_steepness;
1508 float default_fade_msecs;
1512 boost::shared_ptr<Auditioner> auditioner;
1513 void set_audition (boost::shared_ptr<Region>);
1514 void non_realtime_set_audition ();
1515 boost::shared_ptr<Region> pending_audition_region;
1521 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1523 /* INSERT AND SEND MANAGEMENT */
1525 list<PortInsert *> _port_inserts;
1526 list<PluginInsert *> _plugin_inserts;
1527 list<Send *> _sends;
1528 boost::dynamic_bitset<uint32_t> send_bitset;
1529 boost::dynamic_bitset<uint32_t> insert_bitset;
1531 uint32_t insert_cnt;
1534 void add_processor (Processor *);
1535 void remove_processor (Processor *);
1539 struct space_and_path {
1540 uint32_t blocks; /* 4kB blocks */
1548 struct space_and_path_ascending_cmp {
1549 bool operator() (space_and_path a, space_and_path b) {
1550 return a.blocks > b.blocks;
1554 void setup_raid_path (string path);
1556 vector<space_and_path> session_dirs;
1557 vector<space_and_path>::iterator last_rr_session_dir;
1558 uint32_t _total_free_4k_blocks;
1559 Glib::Mutex space_lock;
1561 string get_best_session_directory_for_new_source ();
1562 void refresh_disk_space ();
1564 mutable gint _playback_load;
1565 mutable gint _capture_load;
1566 mutable gint _playback_load_min;
1567 mutable gint _capture_load_min;
1571 typedef list<boost::shared_ptr<Bundle> > BundleList;
1572 mutable Glib::Mutex bundle_lock;
1573 BundleList _bundles;
1574 XMLNode* _bundle_xml_node;
1575 int load_bundles (XMLNode const &);
1577 void reverse_diskstream_buffers ();
1579 UndoHistory _history;
1580 UndoTransaction* current_trans;
1582 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1583 GlobalRouteMeterState get_global_route_metering ();
1585 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1586 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1588 void set_global_mute (GlobalRouteBooleanState s, void *src);
1589 void set_global_solo (GlobalRouteBooleanState s, void *src);
1590 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1592 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1593 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1594 void reset_jack_connection (jack_client_t* jack);
1595 void record_enable_change_all (bool yn);
1597 XMLNode& state(bool);
1607 Click (nframes_t s, nframes_t d, const Sample *b)
1608 : start (s), duration (d), data (b) { offset = 0; }
1610 void *operator new(size_t ignored) {
1611 return pool.alloc ();
1614 void operator delete(void *ptr, size_t size) {
1622 typedef list<Click*> Clicks;
1626 boost::shared_ptr<IO> _click_io;
1628 Sample* click_emphasis_data;
1629 nframes_t click_length;
1630 nframes_t click_emphasis_length;
1631 mutable Glib::RWLock click_lock;
1633 static const Sample default_click[];
1634 static const nframes_t default_click_length;
1635 static const Sample default_click_emphasis[];
1636 static const nframes_t default_click_emphasis_length;
1639 void setup_click_sounds (int which);
1640 void clear_clicks ();
1641 void click (nframes_t start, nframes_t nframes, nframes_t offset);
1643 vector<Route*> master_outs;
1645 /* range playback */
1647 list<AudioRange> current_audio_range;
1649 void set_play_range (bool yn);
1650 void setup_auto_play ();
1655 boost::shared_ptr<IO> _master_out;
1656 boost::shared_ptr<IO> _control_out;
1658 gain_t* _gain_automation_buffer;
1659 pan_t** _pan_automation_buffer;
1660 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1661 uint32_t _npan_buffers;
1665 long _vst_callback (VSTPlugin*,
1672 /* number of hardware ports we're using,
1673 based on max (requested,available)
1676 uint32_t n_physical_outputs;
1677 uint32_t n_physical_inputs;
1680 int find_all_sources (std::string path, std::set<std::string>& result);
1681 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1683 LayerModel layer_model;
1684 CrossfadeModel xfade_model;
1686 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1687 Glib::Mutex controllables_lock;
1688 Controllables controllables;
1690 void reset_native_file_format();
1691 bool first_file_data_format_reset;
1692 bool first_file_header_format_reset;
1694 void config_changed (const char*);
1696 XMLNode& get_control_protocol_state ();
1698 void set_history_depth (uint32_t depth);
1699 void sync_order_keys ();
1701 static bool _disable_all_loaded_plugins;
1704 } // namespace ARDOUR
1706 #endif /* __ardour_session_h__ */