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__
23 #include "libardour-config.h"
32 #include <boost/dynamic_bitset.hpp>
33 #include <boost/scoped_ptr.hpp>
34 #include <boost/weak_ptr.hpp>
35 #include <boost/utility.hpp>
37 #include <glibmm/thread.h>
39 #include "pbd/error.h"
41 #include "pbd/statefuldestructible.h"
42 #include "pbd/signals.h"
45 #include "midi++/types.h"
47 #include "timecode/time.h"
49 #include "ardour/ardour.h"
50 #include "ardour/click.h"
51 #include "ardour/chan_count.h"
52 #include "ardour/rc_configuration.h"
53 #include "ardour/session_configuration.h"
54 #include "ardour/session_event.h"
55 #include "ardour/location.h"
56 #include "ardour/interpolation.h"
57 #include "ardour/speakers.h"
59 #ifdef HAVE_JACK_SESSION
60 #include <jack/session.h>
75 class ControllableDescriptor;
85 class AudioFileSource;
105 class NamedSelection;
118 class SessionDirectory;
119 class SessionMetadata;
120 class SessionPlaylists;
129 extern void setup_enum_writer ();
131 class Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
140 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
141 the bus profile can be null if no master out bus is required.
144 Session (AudioEngine&,
145 const std::string& fullpath,
146 const std::string& snapshot_name,
147 BusProfile* bus_profile = 0,
148 std::string mix_template = "");
152 std::string path() const { return _path; }
153 std::string name() const { return _name; }
154 std::string snap_name() const { return _current_snapshot_name; }
155 std::string raid_path () const;
156 bool path_is_within_session (const std::string&);
158 void set_snap_name ();
160 bool writable() const { return _writable; }
163 bool dirty() const { return _state_of_the_state & Dirty; }
164 void set_deletion_in_progress ();
165 void clear_deletion_in_progress ();
166 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
167 PBD::Signal0<void> DirtyChanged;
169 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
171 static PBD::Signal0<void> AutoBindingOn;
172 static PBD::Signal0<void> AutoBindingOff;
174 static PBD::Signal1<void,std::string> Dialog;
176 int ensure_subdirs ();
178 std::string automation_dir () const;
179 std::string analysis_dir() const;
180 std::string plugins_dir() const;
182 std::string peak_path (std::string) const;
184 std::string change_source_path_by_name (std::string oldpath, std::string oldname, std::string newname, bool destructive);
186 std::string peak_path_from_audio_path (std::string) const;
187 std::string new_audio_source_name (const std::string&, uint32_t nchans, uint32_t chan, bool destructive);
188 std::string new_midi_source_name (const std::string&);
189 std::string new_source_path_from_name (DataType type, const std::string&);
190 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path);
192 void process (pframes_t nframes);
194 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
195 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
196 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
198 bool have_rec_enabled_track () const;
200 bool have_captured() const { return _have_captured; }
202 void refill_all_track_buffers ();
203 Butler* butler() { return _butler; }
204 void butler_transport_work ();
206 void refresh_disk_space ();
208 int load_diskstreams_2X (XMLNode const &, int);
210 int load_routes (const XMLNode&, int);
211 boost::shared_ptr<RouteList> get_routes() const {
212 return routes.reader ();
215 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
217 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
219 uint32_t nroutes() const { return routes.reader()->size(); }
220 uint32_t ntracks () const;
221 uint32_t nbusses () const;
223 boost::shared_ptr<BundleList> bundles () {
224 return _bundles.reader ();
227 struct RoutePublicOrderSorter {
228 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
231 void sync_order_keys (std::string const &);
233 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
234 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
235 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
237 bool io_name_is_legal (const std::string&);
238 boost::shared_ptr<Route> route_by_name (std::string);
239 boost::shared_ptr<Route> route_by_id (PBD::ID);
240 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
241 void routes_using_input_from (const std::string& str, RouteList& rl);
243 bool route_name_unique (std::string) const;
244 bool route_name_internal (std::string) const;
246 bool get_record_enabled() const {
247 return (record_status () >= Enabled);
250 RecordState record_status() const {
251 return (RecordState) g_atomic_int_get (&_record_status);
254 bool actively_recording () const {
255 return record_status() == Recording;
258 bool record_enabling_legal () const;
259 void maybe_enable_record ();
260 void disable_record (bool rt_context, bool force = false);
261 void step_back_from_record ();
263 void maybe_write_autosave ();
265 /* Emitted when all i/o connections are complete */
267 PBD::Signal0<void> IOConnectionsComplete;
269 /* Record status signals */
271 PBD::Signal0<void> RecordStateChanged;
273 /* Transport mechanism signals */
275 /** Emitted on the following changes in transport state:
276 * - stop (from the butler thread)
277 * - change in whether or not we are looping (from the process thread)
278 * - change in the play range (from the process thread)
279 * - start (from the process thread)
282 PBD::Signal0<void> TransportStateChange;
284 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
285 PBD::Signal1<void,framepos_t> Xrun;
286 PBD::Signal0<void> TransportLooped;
288 /** emitted when a locate has occurred */
289 PBD::Signal0<void> Located;
291 PBD::Signal1<void,RouteList&> RouteAdded;
292 /** Emitted when a property of one of our route groups changes.
293 * The parameter is the RouteGroup that has changed.
295 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
296 /** Emitted when a route is added to one of our route groups.
297 * First parameter is the RouteGroup, second is the route.
299 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
300 /** Emitted when a route is removed from one of our route groups.
301 * First parameter is the RouteGroup, second is the route.
303 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
305 /* Step Editing status changed */
306 PBD::Signal1<void,bool> StepEditStatusChange;
308 void queue_event (SessionEvent*);
310 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
311 void request_bounded_roll (framepos_t start, framepos_t end);
312 void request_stop (bool abort = false, bool clear_state = false);
313 void request_locate (framepos_t frame, bool with_roll = false);
315 void request_play_loop (bool yn, bool leave_rolling = false);
316 bool get_play_loop () const { return play_loop; }
318 framepos_t last_transport_start () const { return _last_roll_location; }
321 void use_rf_shuttle_speed ();
322 void allow_auto_play (bool yn);
323 void request_transport_speed (double speed);
324 void request_transport_speed_nonzero (double);
325 void request_overwrite_buffer (Track *);
326 void adjust_playback_buffering();
327 void adjust_capture_buffering();
328 void request_track_speed (Track *, double speed);
329 void request_input_change_handling ();
331 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
332 bool transport_locked () const;
336 framepos_t current_end_frame () const;
337 framepos_t current_start_frame () const;
338 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
339 framecnt_t frame_rate () const { return _current_frame_rate; }
340 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
341 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
342 framecnt_t frames_per_hour () const { return _frames_per_hour; }
344 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
345 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
347 MIDI::byte get_mtc_timecode_bits() const {
348 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
351 float timecode_frames_per_second() const;
352 bool timecode_drop_frames() const;
356 Locations *locations() { return _locations; }
358 PBD::Signal1<void,Location*> auto_loop_location_changed;
359 PBD::Signal1<void,Location*> auto_punch_location_changed;
360 PBD::Signal0<void> locations_modified;
362 void set_auto_punch_location (Location *);
363 void set_auto_loop_location (Location *);
364 int location_name(std::string& result, std::string base = std::string(""));
366 void reset_input_monitor_state ();
368 pframes_t get_block_size() const { return current_block_size; }
369 framecnt_t worst_output_latency () const { return _worst_output_latency; }
370 framecnt_t worst_input_latency () const { return _worst_input_latency; }
371 framecnt_t worst_track_latency () const { return _worst_track_latency; }
372 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
374 #ifdef HAVE_JACK_SESSION
375 void jack_session_event (jack_session_event_t* event);
377 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false);
378 int restore_state (std::string snapshot_name);
379 int save_template (std::string template_name);
380 int save_history (std::string snapshot_name = "");
381 int restore_history (std::string snapshot_name);
382 void remove_state (std::string snapshot_name);
383 void rename_state (std::string old_name, std::string new_name);
384 void remove_pending_capture_state ();
385 int rename (const std::string&);
387 static int rename_template (std::string old_name, std::string new_name);
388 static int delete_template (std::string name);
390 PBD::Signal1<void,std::string> StateSaved;
391 PBD::Signal0<void> StateReady;
393 std::vector<std::string*>* possible_states() const;
394 static std::vector<std::string*>* possible_states (std::string path);
396 XMLNode& get_state();
397 int set_state(const XMLNode& node, int version); // not idempotent
398 XMLNode& get_template();
400 /// The instant xml file is written to the session directory
401 void add_instant_xml (XMLNode&, bool write_to_config = true);
402 XMLNode* instant_xml (const std::string& str);
404 enum StateOfTheState {
409 InitialConnecting = 0x8,
414 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
416 void add_route_group (RouteGroup *);
417 void remove_route_group (RouteGroup&);
418 void reorder_route_groups (std::list<RouteGroup*>);
420 RouteGroup* route_group_by_name (std::string);
421 RouteGroup& all_route_group() const;
423 PBD::Signal1<void,RouteGroup*> route_group_added;
424 PBD::Signal0<void> route_group_removed;
425 PBD::Signal0<void> route_groups_reordered;
427 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
428 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
433 std::list<RouteGroup*> const & route_groups () const {
434 return _route_groups;
437 /* fundamental operations. duh. */
439 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
442 TrackMode mode = Normal,
443 RouteGroup* route_group = 0,
444 uint32_t how_many = 1,
445 std::string name_template = ""
448 RouteList new_audio_route (
449 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
452 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
453 TrackMode mode = Normal, RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
456 void remove_route (boost::shared_ptr<Route>);
457 void resort_routes ();
458 void resort_routes_using (boost::shared_ptr<RouteList>);
460 void set_remote_control_ids();
462 AudioEngine & engine() { return _engine; }
463 AudioEngine const & engine () const { return _engine; }
467 framepos_t transport_frame () const {return _transport_frame; }
468 framepos_t audible_frame () const;
469 framepos_t requested_return_frame() const { return _requested_return_frame; }
483 void sync_time_vars();
485 void bbt_time (framepos_t when, Timecode::BBT_Time&);
486 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
487 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
488 void timecode_time (Timecode::Time &);
489 void timecode_time (framepos_t when, Timecode::Time&);
490 void timecode_time_subframes (framepos_t when, Timecode::Time&);
492 void timecode_duration (framecnt_t, Timecode::Time&) const;
493 void timecode_duration_string (char *, framecnt_t) const;
495 framecnt_t convert_to_frames (AnyTime const & position);
496 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
498 static PBD::Signal1<void, framepos_t> StartTimeChanged;
499 static PBD::Signal1<void, framepos_t> EndTimeChanged;
501 std::vector<SyncSource> get_available_sync_options() const;
502 void request_sync_source (Slave*);
503 bool synced_to_jack() const { return config.get_external_sync() && config.get_sync_source() == JACK; }
505 double transport_speed() const { return _transport_speed; }
506 bool transport_stopped() const { return _transport_speed == 0.0f; }
507 bool transport_rolling() const { return _transport_speed != 0.0f; }
509 void set_silent (bool yn);
510 bool silent () { return _silent; }
512 TempoMap& tempo_map() { return *_tempo_map; }
514 /// signals the current transport position in frames, bbt and timecode time (in that order)
515 PBD::Signal3<void, const framepos_t &, const Timecode::BBT_Time&, const Timecode::Time&> tick;
519 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
521 std::string path_from_region_name (DataType type, std::string name, std::string identifier);
523 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
524 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
525 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
527 /* source management */
529 void import_audiofiles (ImportStatus&);
530 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
531 std::string build_tmp_convert_name (std::string file);
533 boost::shared_ptr<ExportHandler> get_export_handler ();
534 boost::shared_ptr<ExportStatus> get_export_status ();
536 int start_audio_export (framepos_t position, bool realtime);
538 PBD::Signal1<int, framecnt_t> ProcessExport;
539 static PBD::Signal2<void,std::string, std::string> Exported;
541 void add_source (boost::shared_ptr<Source>);
542 void remove_source (boost::weak_ptr<Source>);
544 void cleanup_regions();
545 int cleanup_sources (CleanupReport&);
546 int cleanup_trash_sources (CleanupReport&);
548 int destroy_sources (std::list<boost::shared_ptr<Source> >);
550 int remove_last_capture ();
552 /** handlers should return -1 for "stop cleanup",
553 0 for "yes, delete this playlist",
554 1 for "no, don't delete this playlist".
556 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
558 /** handlers should return 0 for "ignore the rate mismatch",
559 !0 for "do not use this session"
561 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
563 /** handlers should return !0 for use pending state, 0 for ignore it.
565 static PBD::Signal0<int> AskAboutPendingState;
567 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
568 size_t, std::string const &, uint32_t, bool destructive);
570 boost::shared_ptr<MidiSource> create_midi_source_for_session (
571 Track*, std::string const &);
573 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
574 boost::shared_ptr<Source> source_by_path_and_channel (const std::string&, uint16_t);
575 uint32_t count_sources_by_origin (const std::string&);
577 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
579 /* named selections */
581 boost::shared_ptr<NamedSelection> named_selection_by_name (std::string name);
582 void add_named_selection (boost::shared_ptr<NamedSelection>);
583 void remove_named_selection (boost::shared_ptr<NamedSelection>);
585 template<class T> void foreach_named_selection (T& obj, void (T::*func)(boost::shared_ptr<NamedSelection>));
586 PBD::Signal0<void> NamedSelectionAdded;
587 PBD::Signal0<void> NamedSelectionRemoved;
589 /* Curves and AutomationLists (TODO when they go away) */
590 void add_automation_list(AutomationList*);
594 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
595 void audition_playlist ();
596 void audition_region (boost::shared_ptr<Region>);
597 void cancel_audition ();
598 bool is_auditioning () const;
600 PBD::Signal1<void,bool> AuditionActive;
602 /* flattening stuff */
604 boost::shared_ptr<Region> write_one_track (AudioTrack&, framepos_t start, framepos_t end,
605 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
606 bool enable_processing = true);
607 int freeze_all (InterThreadInfo&);
609 /* session-wide solo/mute/rec-enable */
611 bool soloing() const { return _non_soloed_outs_muted; }
612 bool listening() const { return _listen_cnt > 0; }
613 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
615 static const SessionEvent::RTeventCallback rt_cleanup;
617 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
618 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
619 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
620 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
621 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
622 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
623 void set_exclusive_input_active (boost::shared_ptr<Route> rt, bool others_on);
625 PBD::Signal1<void,bool> SoloActive;
626 PBD::Signal0<void> SoloChanged;
627 PBD::Signal0<void> IsolatedChanged;
629 /* control/master out */
631 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
632 boost::shared_ptr<Route> master_out() const { return _master_out; }
634 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
635 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
636 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
637 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
638 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
640 static void set_disable_all_loaded_plugins (bool yn) {
641 _disable_all_loaded_plugins = yn;
643 static bool get_disable_all_loaded_plugins() {
644 return _disable_all_loaded_plugins;
647 uint32_t next_send_id();
648 uint32_t next_return_id();
649 uint32_t next_insert_id();
650 void mark_send_id (uint32_t);
651 void mark_return_id (uint32_t);
652 void mark_insert_id (uint32_t);
653 void unmark_send_id (uint32_t);
654 void unmark_return_id (uint32_t);
655 void unmark_insert_id (uint32_t);
657 /* s/w "RAID" management */
659 framecnt_t available_capture_duration();
663 void add_bundle (boost::shared_ptr<Bundle>);
664 void remove_bundle (boost::shared_ptr<Bundle>);
665 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
667 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleAdded;
668 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleRemoved;
672 /* History (for editors, mixers, UIs etc.) */
674 /** Undo some transactions.
675 * @param n Number of transactions to undo.
677 void undo (uint32_t n) {
681 void redo (uint32_t n) {
685 UndoHistory& history() { return _history; }
687 uint32_t undo_depth() const { return _history.undo_depth(); }
688 uint32_t redo_depth() const { return _history.redo_depth(); }
689 std::string next_undo() const { return _history.next_undo(); }
690 std::string next_redo() const { return _history.next_redo(); }
692 void begin_reversible_command (const std::string& cmd_name);
693 void begin_reversible_command (GQuark);
694 void commit_reversible_command (Command* cmd = 0);
696 void add_command (Command *const cmd) {
697 assert (_current_trans);
698 _current_trans->add_command (cmd);
701 /** @return The list of operations that are currently in progress */
702 std::list<GQuark> const & current_operations () {
703 return _current_trans_quarks;
706 void add_commands (std::vector<Command*> const & cmds);
708 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
710 // these commands are implemented in libs/ardour/session_command.cc
711 Command* memento_command_factory(XMLNode* n);
712 Command* stateful_diff_command_factory (XMLNode *);
713 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
717 boost::shared_ptr<IO> click_io() { return _click_io; }
719 /* disk, buffer loads */
721 uint32_t playback_load ();
722 uint32_t capture_load ();
726 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
727 bool get_play_range () const { return _play_range; }
729 /* buffers for gain and pan */
731 gain_t* gain_automation_buffer () const;
732 pan_t** pan_automation_buffer () const;
734 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
738 static long vst_callback (AEffect* effect,
745 static PBD::Signal0<void> SendFeedback;
749 boost::shared_ptr<Speakers> get_speakers ();
753 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
754 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
756 void add_controllable (boost::shared_ptr<PBD::Controllable>);
757 void remove_controllable (PBD::Controllable*);
759 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
761 SessionMetadata & metadata () { return *_metadata; }
763 SessionConfiguration config;
765 bool exporting () const {
769 /* this is a private enum, but setup_enum_writer() needs it,
770 and i can't find a way to give that function
774 enum PostTransportWork {
775 PostTransportStop = 0x1,
776 PostTransportDuration = 0x2,
777 PostTransportLocate = 0x4,
778 PostTransportRoll = 0x8,
779 PostTransportAbort = 0x10,
780 PostTransportOverWrite = 0x20,
781 PostTransportSpeed = 0x40,
782 PostTransportAudition = 0x80,
783 PostTransportReverse = 0x100,
784 PostTransportInputChange = 0x200,
785 PostTransportCurveRealloc = 0x400,
786 PostTransportClearSubstate = 0x800,
787 PostTransportAdjustPlaybackBuffering = 0x1000,
788 PostTransportAdjustCaptureBuffering = 0x2000
797 SlaveState slave_state() const { return _slave_state; }
799 boost::shared_ptr<SessionPlaylists> playlists;
801 void send_mmc_locate (framepos_t);
802 int send_full_time_code (framepos_t);
804 PBD::Signal0<void> RouteOrderKeyChanged;
806 bool step_editing() const { return (_step_editors > 0); }
808 void request_suspend_timecode_transmission ();
809 void request_resume_timecode_transmission ();
810 bool timecode_transmission_suspended () const;
812 std::string source_search_path(DataType) const;
813 void ensure_search_path_includes (const std::string& path, DataType type);
815 std::list<std::string> unknown_processors () const;
817 /* handlers can return an integer value:
818 0: config.set_audio_search_path() or config.set_midi_search_path() was used
819 to modify the search path and we should try to find it again.
820 1: quit entire session load
821 2: as 0, but don't ask about other missing files
822 3: don't ask about other missing files, and just mark this one missing
823 -1: just mark this one missing
824 any other value: as -1
826 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
828 /** Emitted when the session wants Ardour to quit */
829 static PBD::Signal0<void> Quit;
832 friend class AudioEngine;
833 void set_block_size (pframes_t nframes);
834 void set_frame_rate (framecnt_t nframes);
838 void schedule_curve_reallocation ();
839 void update_latency_compensation (bool force = false);
842 int create (const std::string& mix_template, BusProfile*);
846 PendingDeclickIn = 0x1,
847 PendingDeclickOut = 0x2,
848 StopPendingCapture = 0x4,
849 PendingLocate = 0x20,
852 /* stuff used in process() should be close together to
856 typedef void (Session::*process_function_type)(pframes_t);
858 AudioEngine& _engine;
859 mutable gint processing_prohibited;
860 process_function_type process_function;
861 process_function_type last_process_function;
862 bool waiting_for_sync_offset;
863 framecnt_t _base_frame_rate;
864 framecnt_t _current_frame_rate; //this includes video pullup offset
865 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
866 int transport_sub_state;
867 mutable gint _record_status;
868 framepos_t _transport_frame;
869 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
873 void maybe_update_session_range (framepos_t, framepos_t);
875 // varispeed playback
876 double _transport_speed;
877 double _last_transport_speed;
878 double _target_transport_speed;
879 CubicInterpolation interpolation;
881 bool auto_play_legal;
882 framepos_t _last_slave_transport_frame;
883 framecnt_t maximum_output_latency;
884 framepos_t _requested_return_frame;
885 pframes_t current_block_size;
886 framecnt_t _worst_output_latency;
887 framecnt_t _worst_input_latency;
888 framecnt_t _worst_track_latency;
891 float _meter_falloff;
892 bool _non_soloed_outs_muted;
893 uint32_t _listen_cnt;
894 uint32_t _solo_isolated_cnt;
898 void set_worst_io_latencies ();
899 void set_worst_playback_latency ();
900 void set_worst_capture_latency ();
901 void set_worst_io_latencies_x (IOChange, void *) {
902 set_worst_io_latencies ();
904 void post_capture_latency ();
905 void post_playback_latency ();
907 void update_latency_compensation_proxy (void* ignored);
909 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
911 void process_scrub (pframes_t);
912 void process_without_events (pframes_t);
913 void process_with_events (pframes_t);
914 void process_audition (pframes_t);
915 void process_export (pframes_t);
916 int process_export_fw (pframes_t);
918 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
919 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
920 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
922 Glib::Mutex process_thread_lock;
923 std::list<ProcessThread*> process_threads;
927 static const int delta_accumulator_size = 25;
928 int delta_accumulator_cnt;
929 int32_t delta_accumulator[delta_accumulator_size];
930 int32_t average_slave_delta;
932 bool have_first_delta_accumulator;
934 SlaveState _slave_state;
935 framepos_t slave_wait_end;
937 void reset_slave_state ();
938 bool follow_slave (pframes_t);
939 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
940 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
941 void follow_slave_silently (pframes_t nframes, float slave_speed);
943 void switch_to_sync_source (SyncSource); /* !RT context */
944 void drop_sync_source (); /* !RT context */
945 void use_sync_source (Slave*); /* RT context */
947 bool post_export_sync;
948 framepos_t post_export_position;
951 bool _export_rolling;
953 boost::shared_ptr<ExportHandler> export_handler;
954 boost::shared_ptr<ExportStatus> export_status;
957 int stop_audio_export ();
958 void finalize_audio_export ();
960 PBD::ScopedConnection export_freewheel_connection;
962 void get_track_statistics ();
963 int process_routes (pframes_t, bool& need_butler);
964 int silent_process_routes (pframes_t, bool& need_butler);
966 bool get_rec_monitors_input () {
967 if (actively_recording()) {
970 if (config.get_auto_input()) {
978 int get_transport_declick_required () {
979 if (transport_sub_state & PendingDeclickIn) {
980 transport_sub_state &= ~PendingDeclickIn;
982 } else if (transport_sub_state & PendingDeclickOut) {
989 bool maybe_stop (framepos_t limit);
990 bool maybe_sync_start (pframes_t &);
992 void check_declick_out ();
998 /** Number of process frames since the last MTC output (when sending MTC); used to
999 * know when to send full MTC messages every so often.
1001 pframes_t _pframes_since_last_mtc;
1002 bool session_midi_feedback;
1005 framepos_t last_loopend;
1007 boost::scoped_ptr<SessionDirectory> _session_dir;
1010 void when_engine_running ();
1011 void graph_reordered ();
1013 /** current snapshot name, without the .ardour suffix */
1014 std::string _current_snapshot_name;
1016 XMLTree* state_tree;
1017 bool state_was_pending;
1018 StateOfTheState _state_of_the_state;
1021 int load_options (const XMLNode&);
1022 int load_state (std::string snapshot_name);
1024 framepos_t _last_roll_location;
1025 framepos_t _last_roll_or_reversal_location;
1026 framepos_t _last_record_location;
1028 bool pending_locate_roll;
1029 framepos_t pending_locate_frame;
1030 bool pending_locate_flush;
1032 bool pending_auto_loop;
1036 static const PostTransportWork ProcessCannotProceedMask =
1038 PostTransportInputChange|
1040 PostTransportReverse|
1041 PostTransportCurveRealloc|
1042 PostTransportAudition|
1043 PostTransportLocate|
1045 PostTransportClearSubstate);
1047 gint _post_transport_work; /* accessed only atomic ops */
1048 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (&_post_transport_work); }
1049 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1050 void add_post_transport_work (PostTransportWork ptw);
1052 void schedule_playback_buffering_adjustment ();
1053 void schedule_capture_buffering_adjustment ();
1055 uint32_t cumulative_rf_motion;
1058 void set_rf_speed (float speed);
1059 void reset_rf_scale (framecnt_t frames_moved);
1061 Locations* _locations;
1062 void locations_changed ();
1063 void locations_added (Location*);
1064 void handle_locations_changed (Locations::LocationList&);
1066 PBD::ScopedConnectionList punch_connections;
1067 void auto_punch_start_changed (Location *);
1068 void auto_punch_end_changed (Location *);
1069 void auto_punch_changed (Location *);
1071 PBD::ScopedConnectionList loop_connections;
1072 void auto_loop_changed (Location *);
1074 void first_stage_init (std::string path, std::string snapshot_name);
1075 int second_stage_init ();
1076 void remove_empty_sounds ();
1078 void setup_midi_control ();
1079 int midi_read (MIDI::Port *);
1081 void enable_record ();
1083 void increment_transport_position (framecnt_t val) {
1084 if (max_framepos - val < _transport_frame) {
1085 _transport_frame = max_framepos;
1087 _transport_frame += val;
1091 void decrement_transport_position (framecnt_t val) {
1092 if (val < _transport_frame) {
1093 _transport_frame -= val;
1095 _transport_frame = 0;
1099 void post_transport_motion ();
1100 static void *session_loader_thread (void *arg);
1104 /* SessionEventManager interface */
1106 void process_event (SessionEvent*);
1107 void set_next_event ();
1108 void cleanup_event (SessionEvent*,int);
1110 /* MIDI Machine Control */
1112 void spp_start (MIDI::Parser&, framepos_t timestamp);
1113 void spp_continue (MIDI::Parser&, framepos_t timestamp);
1114 void spp_stop (MIDI::Parser&, framepos_t timestamp);
1116 void mmc_deferred_play (MIDI::MachineControl &);
1117 void mmc_stop (MIDI::MachineControl &);
1118 void mmc_step (MIDI::MachineControl &, int);
1119 void mmc_pause (MIDI::MachineControl &);
1120 void mmc_record_pause (MIDI::MachineControl &);
1121 void mmc_record_strobe (MIDI::MachineControl &);
1122 void mmc_record_exit (MIDI::MachineControl &);
1123 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1124 void mmc_fast_forward (MIDI::MachineControl &);
1125 void mmc_rewind (MIDI::MachineControl &);
1126 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1127 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1128 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1130 struct timeval last_mmc_step;
1133 typedef boost::function<bool()> MidiTimeoutCallback;
1134 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1136 MidiTimeoutList midi_timeouts;
1137 bool mmc_step_timeout ();
1139 MIDI::byte mtc_msg[16];
1140 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1141 MIDI::byte midi_msg[16];
1142 framepos_t outbound_mtc_timecode_frame;
1143 Timecode::Time transmitting_timecode_time;
1144 int next_quarter_frame_to_send;
1146 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1147 framecnt_t _frames_per_hour;
1148 framecnt_t _timecode_frames_per_hour;
1150 /* cache the most-recently requested time conversions. This helps when we
1151 * have multiple clocks showing the same time (e.g. the transport frame) */
1152 bool last_timecode_valid;
1153 framepos_t last_timecode_when;
1154 Timecode::Time last_timecode;
1156 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1158 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1160 void reset_record_status ();
1162 int no_roll (pframes_t nframes);
1163 int fail_roll (pframes_t nframes);
1165 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1166 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1168 MidiControlUI* midi_control_ui;
1170 int start_midi_thread ();
1171 void terminate_midi_thread ();
1173 void set_play_loop (bool yn);
1174 void unset_play_loop ();
1175 void overwrite_some_buffers (Track *);
1176 void flush_all_inserts ();
1177 int micro_locate (framecnt_t distance);
1178 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1179 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1180 void force_locate (framepos_t frame, bool with_roll = false);
1181 void set_track_speed (Track *, double speed);
1182 void set_transport_speed (double speed, bool abort = false, bool clear_state = false);
1183 void stop_transport (bool abort = false, bool clear_state = false);
1184 void start_transport ();
1185 void realtime_stop (bool abort, bool clear_state);
1186 void realtime_locate ();
1187 void non_realtime_start_scrub ();
1188 void non_realtime_set_speed ();
1189 void non_realtime_locate ();
1190 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1191 void non_realtime_overwrite (int entry_request_count, bool& finished);
1192 void post_transport ();
1193 void engine_halted ();
1194 void xrun_recovery ();
1196 TempoMap *_tempo_map;
1197 void tempo_map_changed (const PBD::PropertyChange&);
1199 /* edit/mix groups */
1201 int load_route_groups (const XMLNode&, int);
1203 std::list<RouteGroup *> _route_groups;
1204 RouteGroup* _all_route_group;
1208 boost::shared_ptr<Graph> route_graph;
1210 SerializedRCUManager<RouteList> routes;
1212 void add_routes (RouteList&, bool auto_connect, bool save);
1213 uint32_t destructive_index;
1215 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1216 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1218 void route_processors_changed (RouteProcessorChange);
1220 bool find_route_name (std::string const &, uint32_t& id, char* name, size_t name_len, bool);
1221 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1222 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1223 bool with_lock, bool connect_inputs = true,
1224 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1225 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1229 bool solo_update_disabled;
1231 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1232 void route_mute_changed (void *src);
1233 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1234 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1235 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1237 void listen_position_changed ();
1238 void solo_control_mode_changed ();
1240 /* REGION MANAGEMENT */
1242 mutable Glib::Mutex region_lock;
1244 int load_regions (const XMLNode& node);
1245 int load_compounds (const XMLNode& node);
1247 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1248 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1249 void route_group_property_changed (RouteGroup *);
1253 mutable Glib::Mutex source_lock;
1256 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1262 SourceMap get_sources() { return sources; }
1265 int load_sources (const XMLNode& node);
1266 XMLNode& get_sources_as_xml ();
1268 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1272 void remove_playlist (boost::weak_ptr<Playlist>);
1273 void track_playlist_changed (boost::weak_ptr<Track>);
1274 void playlist_region_added (boost::weak_ptr<Region>);
1275 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1276 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1278 /* NAMED SELECTIONS */
1280 mutable Glib::Mutex named_selection_lock;
1281 typedef std::set<boost::shared_ptr<NamedSelection> > NamedSelectionList;
1282 NamedSelectionList named_selections;
1284 int load_named_selections (const XMLNode&);
1286 NamedSelection *named_selection_factory (std::string name);
1287 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1289 /* CURVES and AUTOMATION LISTS */
1290 std::map<PBD::ID, AutomationList*> automation_lists;
1292 /* DEFAULT FADE CURVES */
1294 float default_fade_steepness;
1295 float default_fade_msecs;
1299 boost::shared_ptr<Auditioner> auditioner;
1300 void set_audition (boost::shared_ptr<Region>);
1301 void non_realtime_set_audition ();
1302 boost::shared_ptr<Region> pending_audition_region;
1308 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1310 /* INSERT AND SEND MANAGEMENT */
1312 boost::dynamic_bitset<uint32_t> send_bitset;
1313 boost::dynamic_bitset<uint32_t> return_bitset;
1314 boost::dynamic_bitset<uint32_t> insert_bitset;
1318 struct space_and_path {
1319 uint32_t blocks; /* 4kB blocks */
1327 struct space_and_path_ascending_cmp {
1328 bool operator() (space_and_path a, space_and_path b) {
1329 return a.blocks > b.blocks;
1333 void setup_raid_path (std::string path);
1335 std::vector<space_and_path> session_dirs;
1336 std::vector<space_and_path>::iterator last_rr_session_dir;
1337 uint32_t _total_free_4k_blocks;
1338 Glib::Mutex space_lock;
1340 bool no_questions_about_missing_files;
1342 std::string get_best_session_directory_for_new_source ();
1344 mutable gint _playback_load;
1345 mutable gint _capture_load;
1349 SerializedRCUManager<BundleList> _bundles;
1350 XMLNode* _bundle_xml_node;
1351 int load_bundles (XMLNode const &);
1353 void reverse_track_buffers ();
1355 UndoHistory _history;
1356 /** current undo transaction, or 0 */
1357 UndoTransaction* _current_trans;
1358 /** GQuarks to describe the reversible commands that are currently in progress.
1359 * These may be nested, in which case more recently-started commands are toward
1360 * the front of the list.
1362 std::list<GQuark> _current_trans_quarks;
1364 void jack_timebase_callback (jack_transport_state_t, pframes_t, jack_position_t*, int);
1365 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1366 void reset_jack_connection (jack_client_t* jack);
1367 void process_rtop (SessionEvent*);
1369 void update_latency (bool playback);
1371 XMLNode& state(bool);
1377 boost::shared_ptr<IO> _click_io;
1379 Sample* click_emphasis_data;
1380 framecnt_t click_length;
1381 framecnt_t click_emphasis_length;
1382 mutable Glib::RWLock click_lock;
1384 static const Sample default_click[];
1385 static const framecnt_t default_click_length;
1386 static const Sample default_click_emphasis[];
1387 static const framecnt_t default_click_emphasis_length;
1390 void setup_click_sounds (int which);
1391 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1392 void clear_clicks ();
1393 void click (framepos_t start, framecnt_t nframes);
1395 std::vector<Route*> master_outs;
1397 /* range playback */
1399 std::list<AudioRange> current_audio_range;
1401 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1402 void unset_play_range ();
1407 boost::shared_ptr<Route> _master_out;
1408 boost::shared_ptr<Route> _monitor_out;
1412 long _vst_callback (VSTPlugin*,
1419 /* number of hardware ports we're using,
1420 based on max (requested,available)
1423 ChanCount n_physical_outputs;
1424 ChanCount n_physical_inputs;
1426 int find_all_sources (std::string path, std::set<std::string>& result);
1427 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1429 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1430 Glib::Mutex controllables_lock;
1431 Controllables controllables;
1433 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1435 void reset_native_file_format();
1436 bool first_file_data_format_reset;
1437 bool first_file_header_format_reset;
1439 void config_changed (std::string, bool);
1441 XMLNode& get_control_protocol_state ();
1443 void set_history_depth (uint32_t depth);
1444 void sync_order_keys ();
1446 static bool _disable_all_loaded_plugins;
1448 SessionMetadata * _metadata;
1450 mutable bool have_looped; ///< Used in ::audible_frame(*)
1452 void update_have_rec_enabled_track ();
1453 gint _have_rec_enabled_track;
1455 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1457 /* realtime "apply to set of routes" operations */
1458 SessionEvent* get_rt_event (
1459 boost::shared_ptr<RouteList> rl, bool yn,
1460 SessionEvent::RTeventCallback after, bool group_override,
1461 void (Session::*method) (boost::shared_ptr<RouteList>, bool, bool));
1463 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1464 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1465 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1466 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1467 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1468 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1470 /** temporary list of Diskstreams used only during load of 2.X sessions */
1471 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1473 void add_session_range_location (framepos_t, framepos_t);
1475 void setup_midi_machine_control ();
1477 void route_order_key_changed ();
1479 void step_edit_status_change (bool);
1480 uint32_t _step_editors;
1482 /** true if timecode transmission by the transport is suspended, otherwise false */
1483 mutable gint _suspend_timecode_transmission;
1485 void update_locations_after_tempo_map_change (Locations::LocationList &);
1487 void start_time_changed (framepos_t);
1488 void end_time_changed (framepos_t);
1490 void set_track_monitor_input_status (bool);
1491 framepos_t compute_stop_limit () const;
1493 boost::shared_ptr<Speakers> _speakers;
1494 void load_nested_sources (const XMLNode& node);
1497 } // namespace ARDOUR
1499 #endif /* __ardour_session_h__ */