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/threads.h>
41 #include "pbd/error.h"
42 #include "pbd/event_loop.h"
44 #include "pbd/statefuldestructible.h"
45 #include "pbd/signals.h"
48 #include "evoral/types.hpp"
50 #include "midi++/types.h"
52 #include "timecode/time.h"
54 #include "ardour/ardour.h"
55 #include "ardour/chan_count.h"
56 #include "ardour/delivery.h"
57 #include "ardour/interthread_info.h"
58 #include "ardour/rc_configuration.h"
59 #include "ardour/session_configuration.h"
60 #include "ardour/session_event.h"
61 #include "ardour/location.h"
62 #include "ardour/interpolation.h"
63 #include "ardour/route_graph.h"
65 #ifdef HAVE_JACK_SESSION
66 #include <jack/session.h>
73 typedef struct _AEffect AEffect;
83 class ControllableDescriptor;
94 class AudioFileSource;
112 class MidiClockTicker;
114 class MidiPortManager;
133 class SessionDirectory;
134 class SessionMetadata;
135 class SessionPlaylists;
141 class WindowsVSTPlugin;
143 extern void setup_enum_writer ();
145 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
154 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
155 the bus profile can be null if no master out bus is required.
158 Session (AudioEngine&,
159 const std::string& fullpath,
160 const std::string& snapshot_name,
161 BusProfile* bus_profile = 0,
162 std::string mix_template = "");
166 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format);
168 std::string path() const { return _path; }
169 std::string name() const { return _name; }
170 std::string snap_name() const { return _current_snapshot_name; }
171 std::string raid_path () const;
172 bool path_is_within_session (const std::string&);
174 void set_snap_name ();
176 bool writable() const { return _writable; }
179 bool dirty() const { return _state_of_the_state & Dirty; }
180 void set_deletion_in_progress ();
181 void clear_deletion_in_progress ();
182 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
183 PBD::Signal0<void> DirtyChanged;
185 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
187 static PBD::Signal1<void,std::string> Dialog;
189 int ensure_subdirs ();
191 std::string automation_dir () const; ///< Automation data
192 std::string analysis_dir () const; ///< Analysis data
193 std::string plugins_dir () const; ///< Plugin state
194 std::string externals_dir () const; ///< Links to external files
196 std::string peak_path (std::string) const;
198 std::string peak_path_from_audio_path (std::string) const;
199 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
200 std::string new_midi_source_path (const std::string&);
201 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path, const std::string& name);
202 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path, uint32_t channels);
204 void process (pframes_t nframes);
206 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
207 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true );
208 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
209 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
211 bool have_rec_enabled_track () const;
213 bool have_captured() const { return _have_captured; }
215 void refill_all_track_buffers ();
216 Butler* butler() { return _butler; }
217 void butler_transport_work ();
219 void refresh_disk_space ();
221 int load_diskstreams_2X (XMLNode const &, int);
223 int load_routes (const XMLNode&, int);
224 boost::shared_ptr<RouteList> get_routes() const {
225 return routes.reader ();
228 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
230 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
232 uint32_t nroutes() const { return routes.reader()->size(); }
233 uint32_t ntracks () const;
234 uint32_t nbusses () const;
236 boost::shared_ptr<BundleList> bundles () {
237 return _bundles.reader ();
240 struct LIBARDOUR_API RoutePublicOrderSorter {
241 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
244 void set_order_hint (uint32_t order_hint) {_order_hint = order_hint;};
245 void notify_remote_id_change ();
246 void sync_order_keys ();
248 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
249 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
250 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
252 static char session_name_is_legal (const std::string&);
253 bool io_name_is_legal (const std::string&);
254 boost::shared_ptr<Route> route_by_name (std::string);
255 boost::shared_ptr<Route> route_by_id (PBD::ID);
256 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
257 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID);
258 void routes_using_input_from (const std::string& str, RouteList& rl);
260 bool route_name_unique (std::string) const;
261 bool route_name_internal (std::string) const;
263 uint32_t track_number_decimals () const {
264 return _track_number_decimals;
267 bool get_record_enabled() const {
268 return (record_status () >= Enabled);
271 RecordState record_status() const {
272 return (RecordState) g_atomic_int_get (&_record_status);
275 bool actively_recording () const {
276 return record_status() == Recording;
279 bool record_enabling_legal () const;
280 void maybe_enable_record ();
281 void disable_record (bool rt_context, bool force = false);
282 void step_back_from_record ();
284 void maybe_write_autosave ();
286 /* Emitted when all i/o connections are complete */
288 PBD::Signal0<void> IOConnectionsComplete;
290 /* Record status signals */
292 PBD::Signal0<void> RecordStateChanged;
294 /* Transport mechanism signals */
296 /** Emitted on the following changes in transport state:
297 * - stop (from the butler thread)
298 * - change in whether or not we are looping (from the process thread)
299 * - change in the play range (from the process thread)
300 * - start (from the process thread)
303 PBD::Signal0<void> TransportStateChange;
305 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
306 PBD::Signal1<void,framepos_t> Xrun;
307 PBD::Signal0<void> TransportLooped;
309 /** emitted when a locate has occurred */
310 PBD::Signal0<void> Located;
312 PBD::Signal1<void,RouteList&> RouteAdded;
313 /** Emitted when a property of one of our route groups changes.
314 * The parameter is the RouteGroup that has changed.
316 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
317 /** Emitted when a route is added to one of our route groups.
318 * First parameter is the RouteGroup, second is the route.
320 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
321 /** Emitted when a route is removed from one of our route groups.
322 * First parameter is the RouteGroup, second is the route.
324 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
326 /* Step Editing status changed */
327 PBD::Signal1<void,bool> StepEditStatusChange;
329 void queue_event (SessionEvent*);
331 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
332 void request_bounded_roll (framepos_t start, framepos_t end);
333 void request_stop (bool abort = false, bool clear_state = false);
334 void request_locate (framepos_t frame, bool with_roll = false);
336 void request_play_loop (bool yn, bool leave_rolling = false);
337 bool get_play_loop () const { return play_loop; }
339 framepos_t last_transport_start () const { return _last_roll_location; }
342 void use_rf_shuttle_speed ();
343 void allow_auto_play (bool yn);
344 void request_transport_speed (double speed, bool as_default = false);
345 void request_transport_speed_nonzero (double, bool as_default = false);
346 void request_overwrite_buffer (Track *);
347 void adjust_playback_buffering();
348 void adjust_capture_buffering();
349 void request_track_speed (Track *, double speed);
350 void request_input_change_handling ();
352 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
353 bool transport_locked () const;
357 framepos_t current_end_frame () const;
358 framepos_t current_start_frame () const;
359 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
360 framecnt_t frame_rate () const { return _current_frame_rate; }
361 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
362 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
363 framecnt_t frames_per_hour () const { return _frames_per_hour; }
365 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
366 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
368 MIDI::byte get_mtc_timecode_bits() const {
369 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
372 double timecode_frames_per_second() const;
373 bool timecode_drop_frames() const;
377 Locations *locations() { return _locations; }
379 PBD::Signal1<void,Location*> auto_loop_location_changed;
380 PBD::Signal1<void,Location*> auto_punch_location_changed;
381 PBD::Signal0<void> locations_modified;
383 void set_auto_punch_location (Location *);
384 void set_auto_loop_location (Location *);
385 int location_name(std::string& result, std::string base = std::string(""));
387 pframes_t get_block_size() const { return current_block_size; }
388 framecnt_t worst_output_latency () const { return _worst_output_latency; }
389 framecnt_t worst_input_latency () const { return _worst_input_latency; }
390 framecnt_t worst_track_latency () const { return _worst_track_latency; }
391 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
393 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false);
394 int restore_state (std::string snapshot_name);
395 int save_template (std::string template_name);
396 int save_history (std::string snapshot_name = "");
397 int restore_history (std::string snapshot_name);
398 void remove_state (std::string snapshot_name);
399 void rename_state (std::string old_name, std::string new_name);
400 void remove_pending_capture_state ();
401 int rename (const std::string&);
402 bool get_nsm_state () const { return _under_nsm_control; }
403 void set_nsm_state (bool state) { _under_nsm_control = state; }
404 bool save_default_options ();
406 PBD::Signal1<void,std::string> StateSaved;
407 PBD::Signal0<void> StateReady;
408 PBD::Signal0<void> SaveSession;
410 std::vector<std::string> possible_states() const;
411 static std::vector<std::string> possible_states (std::string path);
413 XMLNode& get_state();
414 int set_state(const XMLNode& node, int version); // not idempotent
415 XMLNode& get_template();
417 /// The instant xml file is written to the session directory
418 void add_instant_xml (XMLNode&, bool write_to_config = true);
419 XMLNode* instant_xml (const std::string& str);
421 enum StateOfTheState {
426 InitialConnecting = 0x8,
431 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
433 class StateProtector {
435 StateProtector (Session* s) : _session (s) {
436 g_atomic_int_inc (&s->_suspend_save);
439 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
440 while (_session->_save_queued) {
441 _session->_save_queued = false;
442 _session->save_state ("");
450 void add_route_group (RouteGroup *);
451 void remove_route_group (RouteGroup&);
452 void reorder_route_groups (std::list<RouteGroup*>);
454 RouteGroup* route_group_by_name (std::string);
455 RouteGroup& all_route_group() const;
457 PBD::Signal1<void,RouteGroup*> route_group_added;
458 PBD::Signal0<void> route_group_removed;
459 PBD::Signal0<void> route_groups_reordered;
461 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
462 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
467 std::list<RouteGroup*> const & route_groups () const {
468 return _route_groups;
471 /* fundamental operations. duh. */
473 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
476 TrackMode mode = Normal,
477 RouteGroup* route_group = 0,
478 uint32_t how_many = 1,
479 std::string name_template = ""
482 RouteList new_audio_route (
483 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
486 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
487 const ChanCount& input, const ChanCount& output,
488 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
489 TrackMode mode = Normal,
490 RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
493 void remove_route (boost::shared_ptr<Route>);
494 void resort_routes ();
495 void resort_routes_using (boost::shared_ptr<RouteList>);
497 AudioEngine & engine() { return _engine; }
498 AudioEngine const & engine () const { return _engine; }
502 framepos_t transport_frame () const {return _transport_frame; }
503 framepos_t audible_frame () const;
504 framepos_t requested_return_frame() const { return _requested_return_frame; }
518 void sync_time_vars();
520 void bbt_time (framepos_t when, Timecode::BBT_Time&);
521 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
522 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
523 void timecode_time (Timecode::Time &);
524 void timecode_time (framepos_t when, Timecode::Time&);
525 void timecode_time_subframes (framepos_t when, Timecode::Time&);
527 void timecode_duration (framecnt_t, Timecode::Time&) const;
528 void timecode_duration_string (char *, size_t len, framecnt_t) const;
530 framecnt_t convert_to_frames (AnyTime const & position);
531 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
533 static PBD::Signal1<void, framepos_t> StartTimeChanged;
534 static PBD::Signal1<void, framepos_t> EndTimeChanged;
536 void request_sync_source (Slave*);
537 bool synced_to_engine() const { return config.get_external_sync() && Config->get_sync_source() == Engine; }
539 double transport_speed() const { return _transport_speed; }
540 bool transport_stopped() const { return _transport_speed == 0.0f; }
541 bool transport_rolling() const { return _transport_speed != 0.0f; }
543 void set_silent (bool yn);
544 bool silent () { return _silent; }
546 TempoMap& tempo_map() { return *_tempo_map; }
550 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
552 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
553 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
554 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
556 /* source management */
558 void import_files (ImportStatus&);
559 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
560 std::string build_tmp_convert_name (std::string file);
562 boost::shared_ptr<ExportHandler> get_export_handler ();
563 boost::shared_ptr<ExportStatus> get_export_status ();
565 int start_audio_export (framepos_t position);
567 PBD::Signal1<int, framecnt_t> ProcessExport;
568 static PBD::Signal2<void,std::string, std::string> Exported;
570 void add_source (boost::shared_ptr<Source>);
571 void remove_source (boost::weak_ptr<Source>);
573 void cleanup_regions();
574 int cleanup_sources (CleanupReport&);
575 int cleanup_trash_sources (CleanupReport&);
577 int destroy_sources (std::list<boost::shared_ptr<Source> >);
579 int remove_last_capture ();
581 /** handlers should return 0 for "everything OK", and any other value for
582 * "cannot setup audioengine".
584 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
586 /** handlers should return -1 for "stop cleanup",
587 0 for "yes, delete this playlist",
588 1 for "no, don't delete this playlist".
590 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
592 /** handlers should return 0 for "ignore the rate mismatch",
593 !0 for "do not use this session"
595 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
597 /** handlers should return !0 for use pending state, 0 for ignore it.
599 static PBD::Signal0<int> AskAboutPendingState;
601 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
602 size_t, std::string const &, uint32_t, bool destructive);
604 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
605 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
607 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
608 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
609 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
610 uint32_t count_sources_by_origin (const std::string&);
612 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
614 /* Curves and AutomationLists (TODO when they go away) */
615 void add_automation_list(AutomationList*);
619 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
620 void audition_playlist ();
621 void audition_region (boost::shared_ptr<Region>);
622 void cancel_audition ();
623 bool is_auditioning () const;
625 PBD::Signal1<void,bool> AuditionActive;
627 /* flattening stuff */
629 boost::shared_ptr<Region> write_one_track (AudioTrack&, framepos_t start, framepos_t end,
630 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
631 boost::shared_ptr<Processor> endpoint,
632 bool include_endpoint, bool for_export, bool for_freeze);
633 int freeze_all (InterThreadInfo&);
635 /* session-wide solo/mute/rec-enable */
637 bool soloing() const { return _non_soloed_outs_muted; }
638 bool listening() const { return _listen_cnt > 0; }
639 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
641 static const SessionEvent::RTeventCallback rt_cleanup;
643 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
644 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
645 void cancel_solo_after_disconnect (boost::shared_ptr<Route>, bool upstream, SessionEvent::RTeventCallback after = rt_cleanup);
646 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
647 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
648 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
649 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
650 void set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
651 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others=false);
653 PBD::Signal1<void,bool> SoloActive;
654 PBD::Signal0<void> SoloChanged;
655 PBD::Signal0<void> IsolatedChanged;
657 /* monitor/master out */
659 void add_monitor_section ();
660 void remove_monitor_section ();
662 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
663 boost::shared_ptr<Route> master_out() const { return _master_out; }
665 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
666 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
667 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
668 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
669 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
670 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
671 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
673 static void set_disable_all_loaded_plugins (bool yn) {
674 _disable_all_loaded_plugins = yn;
676 static bool get_disable_all_loaded_plugins() {
677 return _disable_all_loaded_plugins;
680 uint32_t next_send_id();
681 uint32_t next_aux_send_id();
682 uint32_t next_return_id();
683 uint32_t next_insert_id();
684 void mark_send_id (uint32_t);
685 void mark_aux_send_id (uint32_t);
686 void mark_return_id (uint32_t);
687 void mark_insert_id (uint32_t);
688 void unmark_send_id (uint32_t);
689 void unmark_aux_send_id (uint32_t);
690 void unmark_return_id (uint32_t);
691 void unmark_insert_id (uint32_t);
693 /* s/w "RAID" management */
695 boost::optional<framecnt_t> available_capture_duration();
699 void add_bundle (boost::shared_ptr<Bundle>);
700 void remove_bundle (boost::shared_ptr<Bundle>);
701 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
703 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleAdded;
704 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleRemoved;
708 /* History (for editors, mixers, UIs etc.) */
710 /** Undo some transactions.
711 * @param n Number of transactions to undo.
713 void undo (uint32_t n) {
717 void redo (uint32_t n) {
721 UndoHistory& history() { return _history; }
723 uint32_t undo_depth() const { return _history.undo_depth(); }
724 uint32_t redo_depth() const { return _history.redo_depth(); }
725 std::string next_undo() const { return _history.next_undo(); }
726 std::string next_redo() const { return _history.next_redo(); }
728 void begin_reversible_command (const std::string& cmd_name);
729 void begin_reversible_command (GQuark);
730 void commit_reversible_command (Command* cmd = 0);
732 void add_command (Command *const cmd) {
733 assert (_current_trans);
734 _current_trans->add_command (cmd);
737 /** @return The list of operations that are currently in progress */
738 std::list<GQuark> const & current_operations () {
739 return _current_trans_quarks;
742 bool operation_in_progress (GQuark) const;
744 void add_commands (std::vector<Command*> const & cmds);
746 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
748 // these commands are implemented in libs/ardour/session_command.cc
749 Command* memento_command_factory(XMLNode* n);
750 Command* stateful_diff_command_factory (XMLNode *);
751 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
755 boost::shared_ptr<IO> click_io() { return _click_io; }
756 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
758 /* disk, buffer loads */
760 uint32_t playback_load ();
761 uint32_t capture_load ();
765 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
766 bool get_play_range () const { return _play_range; }
768 void maybe_update_session_range (framepos_t, framepos_t);
770 /* buffers for gain and pan */
772 gain_t* gain_automation_buffer () const;
773 gain_t* send_gain_automation_buffer () const;
774 pan_t** pan_automation_buffer () const;
776 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
780 static int vst_current_loading_id;
781 static const char* vst_can_do_strings[];
782 static const int vst_can_do_string_count;
784 static intptr_t vst_callback (
793 static PBD::Signal0<void> SendFeedback;
797 boost::shared_ptr<Speakers> get_speakers ();
801 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
802 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
804 void add_controllable (boost::shared_ptr<PBD::Controllable>);
805 void remove_controllable (PBD::Controllable*);
807 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
809 SessionConfiguration config;
811 bool exporting () const {
815 bool bounce_processing() const {
816 return _bounce_processing_active;
819 /* this is a private enum, but setup_enum_writer() needs it,
820 and i can't find a way to give that function
824 enum PostTransportWork {
825 PostTransportStop = 0x1,
826 PostTransportDuration = 0x2,
827 PostTransportLocate = 0x4,
828 PostTransportRoll = 0x8,
829 PostTransportAbort = 0x10,
830 PostTransportOverWrite = 0x20,
831 PostTransportSpeed = 0x40,
832 PostTransportAudition = 0x80,
833 PostTransportReverse = 0x100,
834 PostTransportInputChange = 0x200,
835 PostTransportCurveRealloc = 0x400,
836 PostTransportClearSubstate = 0x800,
837 PostTransportAdjustPlaybackBuffering = 0x1000,
838 PostTransportAdjustCaptureBuffering = 0x2000
847 SlaveState slave_state() const { return _slave_state; }
848 Slave* slave() const { return _slave; }
850 boost::shared_ptr<SessionPlaylists> playlists;
852 void send_mmc_locate (framepos_t);
853 void queue_full_time_code () { _send_timecode_update = true; }
854 void queue_song_position_pointer () { /* currently does nothing */ }
856 bool step_editing() const { return (_step_editors > 0); }
858 void request_suspend_timecode_transmission ();
859 void request_resume_timecode_transmission ();
860 bool timecode_transmission_suspended () const;
862 std::vector<std::string> source_search_path(DataType) const;
863 void ensure_search_path_includes (const std::string& path, DataType type);
865 std::list<std::string> unknown_processors () const;
867 /** Emitted when a feedback cycle has been detected within Ardour's signal
868 processing path. Until it is fixed (by the user) some (unspecified)
869 routes will not be run.
871 static PBD::Signal0<void> FeedbackDetected;
873 /** Emitted when a graph sort has successfully completed, which means
874 that it has no feedback cycles.
876 static PBD::Signal0<void> SuccessfulGraphSort;
878 /* handlers can return an integer value:
879 0: config.set_audio_search_path() or config.set_midi_search_path() was used
880 to modify the search path and we should try to find it again.
881 1: quit entire session load
882 2: as 0, but don't ask about other missing files
883 3: don't ask about other missing files, and just mark this one missing
884 -1: just mark this one missing
885 any other value: as -1
887 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
889 /** Emitted when the session wants Ardour to quit */
890 static PBD::Signal0<void> Quit;
892 /** Emitted when Ardour is asked to load a session in an older session
893 * format, and makes a backup copy.
895 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
897 SceneChanger* scene_changer() const { return _scene_changer; }
899 boost::shared_ptr<Port> ltc_input_port() const;
900 boost::shared_ptr<Port> ltc_output_port() const;
902 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
903 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
905 MIDI::Port* midi_input_port () const;
906 MIDI::Port* midi_output_port () const;
907 MIDI::Port* mmc_output_port () const;
908 MIDI::Port* mmc_input_port () const;
910 MIDI::Port* scene_input_port () const;
911 MIDI::Port* scene_output_port () const;
913 boost::shared_ptr<MidiPort> scene_in () const;
914 boost::shared_ptr<MidiPort> scene_out () const;
916 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
917 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
918 boost::shared_ptr<MidiPort> mtc_output_port () const;
919 boost::shared_ptr<MidiPort> mtc_input_port () const;
921 MIDI::MachineControl& mmc() { return *_mmc; }
924 friend class AudioEngine;
925 void set_block_size (pframes_t nframes);
926 void set_frame_rate (framecnt_t nframes);
930 void schedule_curve_reallocation ();
931 void update_latency_compensation (bool force = false);
934 int create (const std::string& mix_template, BusProfile*);
938 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
939 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
940 StopPendingCapture = 0x4,
941 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
942 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
943 PendingLocate = 0x20,
946 /* stuff used in process() should be close together to
950 typedef void (Session::*process_function_type)(pframes_t);
952 AudioEngine& _engine;
953 mutable gint processing_prohibited;
954 process_function_type process_function;
955 process_function_type last_process_function;
956 bool _bounce_processing_active;
957 bool waiting_for_sync_offset;
958 framecnt_t _base_frame_rate;
959 framecnt_t _current_frame_rate; //this includes video pullup offset
960 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
961 int transport_sub_state;
962 mutable gint _record_status;
963 framepos_t _transport_frame;
964 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
968 // varispeed playback
969 double _transport_speed;
970 double _default_transport_speed;
971 double _last_transport_speed;
972 double _target_transport_speed;
973 CubicInterpolation interpolation;
975 bool auto_play_legal;
976 framepos_t _last_slave_transport_frame;
977 framecnt_t maximum_output_latency;
978 framepos_t _requested_return_frame;
979 pframes_t current_block_size;
980 framecnt_t _worst_output_latency;
981 framecnt_t _worst_input_latency;
982 framecnt_t _worst_track_latency;
985 float _meter_falloff;
986 bool _non_soloed_outs_muted;
987 uint32_t _listen_cnt;
988 uint32_t _solo_isolated_cnt;
991 bool _under_nsm_control;
993 void initialize_latencies ();
994 void set_worst_io_latencies ();
995 void set_worst_playback_latency ();
996 void set_worst_capture_latency ();
997 void set_worst_io_latencies_x (IOChange, void *) {
998 set_worst_io_latencies ();
1000 void post_capture_latency ();
1001 void post_playback_latency ();
1003 void update_latency_compensation_proxy (void* ignored);
1005 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1007 void process_scrub (pframes_t);
1008 void process_without_events (pframes_t);
1009 void process_with_events (pframes_t);
1010 void process_audition (pframes_t);
1011 int process_export (pframes_t);
1012 int process_export_fw (pframes_t);
1014 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1015 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1016 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1018 static const framecnt_t bounce_chunk_size;
1020 /* slave tracking */
1022 static const int delta_accumulator_size = 25;
1023 int delta_accumulator_cnt;
1024 int32_t delta_accumulator[delta_accumulator_size];
1025 int32_t average_slave_delta;
1027 bool have_first_delta_accumulator;
1029 SlaveState _slave_state;
1030 framepos_t slave_wait_end;
1032 void reset_slave_state ();
1033 bool follow_slave (pframes_t);
1034 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1035 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1036 void follow_slave_silently (pframes_t nframes, float slave_speed);
1038 void switch_to_sync_source (SyncSource); /* !RT context */
1039 void drop_sync_source (); /* !RT context */
1040 void use_sync_source (Slave*); /* RT context */
1042 bool post_export_sync;
1043 framepos_t post_export_position;
1046 bool _export_started;
1047 bool _export_rolling;
1049 boost::shared_ptr<ExportHandler> export_handler;
1050 boost::shared_ptr<ExportStatus> export_status;
1053 int stop_audio_export ();
1054 void finalize_audio_export ();
1055 void finalize_export_internal (bool stop_freewheel);
1056 bool _pre_export_mmc_enabled;
1058 PBD::ScopedConnection export_freewheel_connection;
1060 void get_track_statistics ();
1061 int process_routes (pframes_t, bool& need_butler);
1062 int silent_process_routes (pframes_t, bool& need_butler);
1064 /** @return 1 if there is a pending declick fade-in,
1065 -1 if there is a pending declick fade-out,
1066 0 if there is no pending declick.
1068 int get_transport_declick_required () {
1069 if (transport_sub_state & PendingDeclickIn) {
1070 transport_sub_state &= ~PendingDeclickIn;
1072 } else if (transport_sub_state & PendingDeclickOut) {
1073 /* XXX: not entirely sure why we don't clear this */
1075 } else if (transport_sub_state & PendingLoopDeclickOut) {
1076 /* Return the declick out first ... */
1077 transport_sub_state &= ~PendingLoopDeclickOut;
1079 } else if (transport_sub_state & PendingLoopDeclickIn) {
1080 /* ... then the declick in on the next call */
1081 transport_sub_state &= ~PendingLoopDeclickIn;
1088 bool maybe_stop (framepos_t limit);
1089 bool maybe_sync_start (pframes_t &);
1091 void check_declick_out ();
1097 /** Number of process frames since the last MTC output (when sending MTC); used to
1098 * know when to send full MTC messages every so often.
1100 pframes_t _pframes_since_last_mtc;
1101 bool session_midi_feedback;
1104 framepos_t last_loopend;
1106 boost::scoped_ptr<SessionDirectory> _session_dir;
1109 void graph_reordered ();
1111 /** current snapshot name, without the .ardour suffix */
1112 std::string _current_snapshot_name;
1114 XMLTree* state_tree;
1115 bool state_was_pending;
1116 StateOfTheState _state_of_the_state;
1118 friend class StateProtector;
1119 gint _suspend_save; /* atomic */
1120 volatile bool _save_queued;
1123 int load_options (const XMLNode&);
1124 int load_state (std::string snapshot_name);
1126 framepos_t _last_roll_location;
1127 /** the session frame time at which we last rolled, located, or changed transport direction */
1128 framepos_t _last_roll_or_reversal_location;
1129 framepos_t _last_record_location;
1131 bool pending_locate_roll;
1132 framepos_t pending_locate_frame;
1133 bool pending_locate_flush;
1135 bool pending_auto_loop;
1139 static const PostTransportWork ProcessCannotProceedMask =
1141 PostTransportInputChange|
1143 PostTransportReverse|
1144 PostTransportCurveRealloc|
1145 PostTransportAudition|
1146 PostTransportLocate|
1148 PostTransportClearSubstate);
1150 gint _post_transport_work; /* accessed only atomic ops */
1151 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1152 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1153 void add_post_transport_work (PostTransportWork ptw);
1155 void schedule_playback_buffering_adjustment ();
1156 void schedule_capture_buffering_adjustment ();
1158 uint32_t cumulative_rf_motion;
1161 void set_rf_speed (float speed);
1162 void reset_rf_scale (framecnt_t frames_moved);
1164 Locations* _locations;
1165 void locations_changed ();
1166 void locations_added (Location*);
1167 void handle_locations_changed (Locations::LocationList&);
1169 PBD::ScopedConnectionList punch_connections;
1170 void auto_punch_start_changed (Location *);
1171 void auto_punch_end_changed (Location *);
1172 void auto_punch_changed (Location *);
1174 PBD::ScopedConnectionList loop_connections;
1175 void auto_loop_changed (Location *);
1176 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1178 int ensure_engine (uint32_t desired_sample_rate);
1179 void pre_engine_init (std::string path);
1180 int post_engine_init ();
1181 int immediately_post_engine ();
1182 void remove_empty_sounds ();
1184 void setup_midi_control ();
1185 int midi_read (MIDI::Port *);
1187 void enable_record ();
1189 void increment_transport_position (framecnt_t val) {
1190 if (max_framepos - val < _transport_frame) {
1191 _transport_frame = max_framepos;
1193 _transport_frame += val;
1197 void decrement_transport_position (framecnt_t val) {
1198 if (val < _transport_frame) {
1199 _transport_frame -= val;
1201 _transport_frame = 0;
1205 void post_transport_motion ();
1206 static void *session_loader_thread (void *arg);
1210 /* SessionEventManager interface */
1212 void process_event (SessionEvent*);
1213 void set_next_event ();
1214 void cleanup_event (SessionEvent*,int);
1216 /* MIDI Machine Control */
1219 void spp_continue ();
1222 void mmc_deferred_play (MIDI::MachineControl &);
1223 void mmc_stop (MIDI::MachineControl &);
1224 void mmc_step (MIDI::MachineControl &, int);
1225 void mmc_pause (MIDI::MachineControl &);
1226 void mmc_record_pause (MIDI::MachineControl &);
1227 void mmc_record_strobe (MIDI::MachineControl &);
1228 void mmc_record_exit (MIDI::MachineControl &);
1229 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1230 void mmc_fast_forward (MIDI::MachineControl &);
1231 void mmc_rewind (MIDI::MachineControl &);
1232 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1233 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1234 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1236 struct timeval last_mmc_step;
1239 typedef boost::function<bool()> MidiTimeoutCallback;
1240 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1242 MidiTimeoutList midi_timeouts;
1243 bool mmc_step_timeout ();
1245 MIDI::byte mtc_msg[16];
1246 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1247 MIDI::byte midi_msg[16];
1248 double outbound_mtc_timecode_frame;
1249 Timecode::Time transmitting_timecode_time;
1250 int next_quarter_frame_to_send;
1252 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1253 framecnt_t _frames_per_hour;
1254 framecnt_t _timecode_frames_per_hour;
1256 /* cache the most-recently requested time conversions. This helps when we
1257 * have multiple clocks showing the same time (e.g. the transport frame) */
1258 bool last_timecode_valid;
1259 framepos_t last_timecode_when;
1260 Timecode::Time last_timecode;
1262 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1264 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1266 LTCEncoder* ltc_encoder;
1267 ltcsnd_sample_t* ltc_enc_buf;
1269 Timecode::TimecodeFormat ltc_enc_tcformat;
1270 int32_t ltc_buf_off;
1271 int32_t ltc_buf_len;
1274 int32_t ltc_enc_byte;
1275 framepos_t ltc_enc_pos;
1277 framepos_t ltc_enc_off;
1279 framepos_t ltc_prev_cycle;
1281 framepos_t ltc_timecode_offset;
1282 bool ltc_timecode_negative_offset;
1284 LatencyRange ltc_out_latency;
1286 void ltc_tx_initialize();
1287 void ltc_tx_cleanup();
1288 void ltc_tx_reset();
1289 void ltc_tx_resync_latency();
1290 void ltc_tx_recalculate_position();
1291 void ltc_tx_parse_offset();
1292 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1294 void reset_record_status ();
1296 int no_roll (pframes_t nframes);
1297 int fail_roll (pframes_t nframes);
1299 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1300 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1302 MidiControlUI* midi_control_ui;
1304 int start_midi_thread ();
1306 void set_play_loop (bool yn, double speed);
1307 void unset_play_loop ();
1308 void overwrite_some_buffers (Track *);
1309 void flush_all_inserts ();
1310 int micro_locate (framecnt_t distance);
1311 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1312 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1313 void force_locate (framepos_t frame, bool with_roll = false);
1314 void set_track_speed (Track *, double speed);
1315 void set_transport_speed (double speed, bool abort = false, bool clear_state = false, bool as_default = false);
1316 void stop_transport (bool abort = false, bool clear_state = false);
1317 void start_transport ();
1318 void realtime_stop (bool abort, bool clear_state);
1319 void realtime_locate ();
1320 void non_realtime_start_scrub ();
1321 void non_realtime_set_speed ();
1322 void non_realtime_locate ();
1323 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1324 void non_realtime_overwrite (int entry_request_count, bool& finished);
1325 void post_transport ();
1326 void engine_halted ();
1327 void xrun_recovery ();
1329 /* These are synchronous and so can only be called from within the process
1333 int send_full_time_code (framepos_t, pframes_t nframes);
1334 void send_song_position_pointer (framepos_t);
1336 TempoMap *_tempo_map;
1337 void tempo_map_changed (const PBD::PropertyChange&);
1339 /* edit/mix groups */
1341 int load_route_groups (const XMLNode&, int);
1343 std::list<RouteGroup *> _route_groups;
1344 RouteGroup* _all_route_group;
1348 boost::shared_ptr<Graph> _process_graph;
1350 SerializedRCUManager<RouteList> routes;
1352 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save);
1353 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect);
1354 bool _adding_routes_in_progress;
1355 uint32_t destructive_index;
1357 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1358 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1360 void route_processors_changed (RouteProcessorChange);
1362 bool find_route_name (std::string const &, uint32_t& id, char* name, size_t name_len, bool);
1363 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1364 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1365 bool with_lock, bool connect_inputs = true,
1366 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1367 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1369 /* track numbering */
1371 void reassign_track_numbers ();
1372 uint32_t _track_number_decimals;
1376 bool solo_update_disabled;
1378 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1379 void route_mute_changed (void *src);
1380 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1381 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1382 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1384 void listen_position_changed ();
1385 void solo_control_mode_changed ();
1387 /* REGION MANAGEMENT */
1389 mutable Glib::Threads::Mutex region_lock;
1391 int load_regions (const XMLNode& node);
1392 int load_compounds (const XMLNode& node);
1394 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1395 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1396 void route_group_property_changed (RouteGroup *);
1400 mutable Glib::Threads::Mutex source_lock;
1403 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1409 int load_sources (const XMLNode& node);
1410 XMLNode& get_sources_as_xml ();
1412 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1416 void remove_playlist (boost::weak_ptr<Playlist>);
1417 void track_playlist_changed (boost::weak_ptr<Track>);
1418 void playlist_region_added (boost::weak_ptr<Region>);
1419 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1420 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1422 /* CURVES and AUTOMATION LISTS */
1423 std::map<PBD::ID, AutomationList*> automation_lists;
1425 /* DEFAULT FADE CURVES */
1427 float default_fade_steepness;
1428 float default_fade_msecs;
1432 boost::shared_ptr<Auditioner> auditioner;
1433 void set_audition (boost::shared_ptr<Region>);
1434 void non_realtime_set_audition ();
1435 boost::shared_ptr<Region> pending_audition_region;
1441 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1443 /* INSERT AND SEND MANAGEMENT */
1445 boost::dynamic_bitset<uint32_t> send_bitset;
1446 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1447 boost::dynamic_bitset<uint32_t> return_bitset;
1448 boost::dynamic_bitset<uint32_t> insert_bitset;
1452 struct space_and_path {
1453 uint32_t blocks; ///< 4kB blocks
1454 bool blocks_unknown; ///< true if blocks is unknown
1459 , blocks_unknown (true)
1463 struct space_and_path_ascending_cmp {
1464 bool operator() (space_and_path a, space_and_path b) {
1465 if (a.blocks_unknown != b.blocks_unknown) {
1466 return !a.blocks_unknown;
1468 return a.blocks > b.blocks;
1472 void setup_raid_path (std::string path);
1474 std::vector<space_and_path> session_dirs;
1475 std::vector<space_and_path>::iterator last_rr_session_dir;
1476 uint32_t _total_free_4k_blocks;
1477 /** If this is true, _total_free_4k_blocks is not definite,
1478 as one or more of the session directories' filesystems
1479 could not report free space.
1481 bool _total_free_4k_blocks_uncertain;
1482 Glib::Threads::Mutex space_lock;
1484 bool no_questions_about_missing_files;
1486 std::string get_best_session_directory_for_new_audio ();
1488 mutable gint _playback_load;
1489 mutable gint _capture_load;
1493 SerializedRCUManager<BundleList> _bundles;
1494 XMLNode* _bundle_xml_node;
1495 int load_bundles (XMLNode const &);
1497 UndoHistory _history;
1498 /** current undo transaction, or 0 */
1499 UndoTransaction* _current_trans;
1500 /** GQuarks to describe the reversible commands that are currently in progress.
1501 * These may be nested, in which case more recently-started commands are toward
1502 * the front of the list.
1504 std::list<GQuark> _current_trans_quarks;
1506 int backend_sync_callback (TransportState, framepos_t);
1508 void process_rtop (SessionEvent*);
1510 void update_latency (bool playback);
1512 XMLNode& state(bool);
1515 typedef std::list<Click*> Clicks;
1518 boost::shared_ptr<IO> _click_io;
1519 boost::shared_ptr<Amp> _click_gain;
1521 Sample* click_emphasis_data;
1522 framecnt_t click_length;
1523 framecnt_t click_emphasis_length;
1524 mutable Glib::Threads::RWLock click_lock;
1526 static const Sample default_click[];
1527 static const framecnt_t default_click_length;
1528 static const Sample default_click_emphasis[];
1529 static const framecnt_t default_click_emphasis_length;
1532 framepos_t _clicks_cleared;
1533 void setup_click_sounds (int which);
1534 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1535 void clear_clicks ();
1536 void click (framepos_t start, framecnt_t nframes);
1538 std::vector<Route*> master_outs;
1540 /* range playback */
1542 std::list<AudioRange> current_audio_range;
1544 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1545 void unset_play_range ();
1550 boost::shared_ptr<Route> _master_out;
1551 boost::shared_ptr<Route> _monitor_out;
1553 void auto_connect_master_bus ();
1555 /* Windows VST support */
1557 long _windows_vst_callback (
1566 int find_all_sources (std::string path, std::set<std::string>& result);
1567 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1569 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1570 Glib::Threads::Mutex controllables_lock;
1571 Controllables controllables;
1573 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1575 void reset_native_file_format();
1576 bool first_file_data_format_reset;
1577 bool first_file_header_format_reset;
1579 void config_changed (std::string, bool);
1581 XMLNode& get_control_protocol_state ();
1583 void set_history_depth (uint32_t depth);
1585 static bool _disable_all_loaded_plugins;
1587 mutable bool have_looped; ///< Used in ::audible_frame(*)
1589 void update_have_rec_enabled_track ();
1590 gint _have_rec_enabled_track;
1592 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1594 /* realtime "apply to set of routes" operations */
1595 template<typename T> SessionEvent*
1596 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, bool group_override,
1597 void (Session::*method) (boost::shared_ptr<RouteList>, T, bool)) {
1598 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1599 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1600 ev->rt_return = after;
1601 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1606 void rt_cancel_solo_after_disconnect (boost::shared_ptr<RouteList>, bool upstream, bool /* ignored*/ );
1607 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1608 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1609 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1610 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1611 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1612 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1613 void rt_set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, bool group_override);
1615 /** temporary list of Diskstreams used only during load of 2.X sessions */
1616 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1618 void add_session_range_location (framepos_t, framepos_t);
1620 void setup_midi_machine_control ();
1622 void step_edit_status_change (bool);
1623 uint32_t _step_editors;
1625 /** true if timecode transmission by the transport is suspended, otherwise false */
1626 mutable gint _suspend_timecode_transmission;
1628 void update_locations_after_tempo_map_change (Locations::LocationList &);
1630 void start_time_changed (framepos_t);
1631 void end_time_changed (framepos_t);
1633 void set_track_monitor_input_status (bool);
1634 framepos_t compute_stop_limit () const;
1636 boost::shared_ptr<Speakers> _speakers;
1637 void load_nested_sources (const XMLNode& node);
1639 /** The directed graph of routes that is currently being used for audio processing
1640 and solo/mute computations.
1642 GraphEdges _current_route_graph;
1644 uint32_t next_control_id () const;
1645 uint32_t _order_hint;
1646 bool ignore_route_processor_changes;
1648 MidiClockTicker* midi_clock;
1650 boost::shared_ptr<IO> _ltc_input;
1651 boost::shared_ptr<IO> _ltc_output;
1653 void reconnect_ltc_input ();
1654 void reconnect_ltc_output ();
1656 /* Scene Changing */
1657 SceneChanger* _scene_changer;
1659 /* persistent, non-track related MIDI ports */
1660 MidiPortManager* _midi_ports;
1661 MIDI::MachineControl* _mmc;
1664 void setup_click ();
1665 void setup_click_state (const XMLNode*);
1666 void setup_bundles ();
1668 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
1672 } // namespace ARDOUR
1674 #endif /* __ardour_session_h__ */