2 * Copyright (C) 2000-2019 Paul Davis <paul@linuxaudiosystems.com>
3 * Copyright (C) 2005-2009 Taybin Rutkin <taybin@taybin.com>
4 * Copyright (C) 2006-2007 Jesse Chappell <jesse@essej.net>
5 * Copyright (C) 2006-2009 Sampo Savolainen <v2@iki.fi>
6 * Copyright (C) 2006-2015 David Robillard <d@drobilla.net>
7 * Copyright (C) 2007-2012 Carl Hetherington <carl@carlh.net>
8 * Copyright (C) 2007-2015 Tim Mayberry <mojofunk@gmail.com>
9 * Copyright (C) 2008-2009 Hans Baier <hansfbaier@googlemail.com>
10 * Copyright (C) 2008-2009 Sakari Bergen <sakari.bergen@beatwaves.net>
11 * Copyright (C) 2012-2019 Robin Gareus <robin@gareus.org>
12 * Copyright (C) 2013-2017 Nick Mainsbridge <mainsbridge@gmail.com>
13 * Copyright (C) 2013-2018 John Emmas <john@creativepost.co.uk>
14 * Copyright (C) 2014-2018 Ben Loftis <ben@harrisonconsoles.com>
15 * Copyright (C) 2015-2018 Len Ovens <len@ovenwerks.net>
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2 of the License, or
20 * (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
27 * You should have received a copy of the GNU General Public License along
28 * with this program; if not, write to the Free Software Foundation, Inc.,
29 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
32 #ifndef __ardour_session_h__
33 #define __ardour_session_h__
36 #include "libardour-config.h"
48 #include <boost/dynamic_bitset.hpp>
49 #include <boost/scoped_ptr.hpp>
50 #include <boost/weak_ptr.hpp>
51 #include <boost/utility.hpp>
53 #include <glibmm/threads.h>
57 #include "pbd/error.h"
58 #include "pbd/event_loop.h"
59 #include "pbd/file_archive.h"
61 #include "pbd/reallocpool.h"
62 #include "pbd/statefuldestructible.h"
63 #include "pbd/signals.h"
66 #include "lua/luastate.h"
68 #include "evoral/Range.h"
70 #include "midi++/types.h"
71 #include "midi++/mmc.h"
73 #include "temporal/time.h"
75 #include "ardour/ardour.h"
76 #include "ardour/chan_count.h"
77 #include "ardour/delivery.h"
78 #include "ardour/interthread_info.h"
79 #include "ardour/luascripting.h"
80 #include "ardour/location.h"
81 #include "ardour/monitor_processor.h"
82 #include "ardour/presentation_info.h"
83 #include "ardour/rc_configuration.h"
84 #include "ardour/session_configuration.h"
85 #include "ardour/session_event.h"
86 #include "ardour/interpolation.h"
87 #include "ardour/plugin.h"
88 #include "ardour/presentation_info.h"
89 #include "ardour/route.h"
90 #include "ardour/route_graph.h"
91 #include "ardour/transport_api.h"
96 typedef struct _AEffect AEffect;
102 class MachineControl;
110 namespace luabridge {
123 class AudioFileSource;
128 class AutomationList;
141 class MidiClockTicker;
143 class MidiPortManager;
164 class SessionDirectory;
165 class SessionMetadata;
166 class SessionPlaylists;
170 class TransportMaster;
173 class UI_TransportMaster;
175 class WindowsVSTPlugin;
177 extern void setup_enum_writer ();
179 class LIBARDOUR_API SessionException: public std::exception {
181 explicit SessionException(const std::string msg) : _message(msg) {}
182 virtual ~SessionException() throw() {}
184 virtual const char* what() const throw() { return _message.c_str(); }
187 std::string _message;
190 /** Ardour Session */
191 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager, public TransportAPI
202 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
203 the bus profile can be null if no master out bus is required.
206 Session (AudioEngine&,
207 const std::string& fullpath,
208 const std::string& snapshot_name,
209 BusProfile const * bus_profile = 0,
210 std::string mix_template = "");
214 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format, std::string& program_version);
215 static std::string get_snapshot_from_instant (const std::string& session_dir);
217 /** a monotonic counter used for naming user-visible things uniquely
218 * (curently the sidechain port).
219 * Use sparingly to keep the numbers low, prefer PBD::ID for all
220 * internal, not user-visible IDs */
221 static unsigned int next_name_id ();
223 std::string path() const { return _path; }
224 std::string name() const { return _name; }
225 std::string snap_name() const { return _current_snapshot_name; }
226 std::string raid_path () const;
227 bool path_is_within_session (const std::string&);
229 bool writable() const { return _writable; }
230 void set_clean (); // == Clean and emit DirtyChanged IFF session was Dirty
231 void set_dirty (); // |= Dirty and emit DirtyChanged (unless already dirty or Loading, Deletion)
232 void unset_dirty (bool emit_dirty_changed = false); // &= ~Dirty
233 void set_deletion_in_progress (); // |= Deletion
234 void clear_deletion_in_progress (); // &= ~Deletion
236 bool reconnection_in_progress () const { return _reconnecting_routes_in_progress; }
237 bool routes_deletion_in_progress () const { return _route_deletion_in_progress; }
238 bool dirty () const { return _state_of_the_state & Dirty; }
239 bool deletion_in_progress () const { return _state_of_the_state & Deletion; }
240 bool peaks_cleanup_in_progres () const { return _state_of_the_state & PeakCleanup; }
241 bool loading () const { return _state_of_the_state & Loading; }
242 bool cannot_save () const { return _state_of_the_state & CannotSave; }
243 bool in_cleanup () const { return _state_of_the_state & InCleanup; }
244 bool inital_connect_or_deletion_in_progress () { return _state_of_the_state & (InitialConnecting | Deletion); }
246 PBD::Signal0<void> DirtyChanged;
248 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
250 static PBD::Signal1<void,std::string> Dialog;
252 PBD::Signal0<void> BatchUpdateStart;
253 PBD::Signal0<void> BatchUpdateEnd;
255 int ensure_subdirs ();
257 std::string automation_dir () const; ///< Automation data
258 std::string analysis_dir () const; ///< Analysis data
259 std::string plugins_dir () const; ///< Plugin state
260 std::string externals_dir () const; ///< Links to external files
262 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
264 bool audio_source_name_is_unique (const std::string& name);
265 std::string format_audio_source_name (const std::string& legalized_base, uint32_t nchan, uint32_t chan, bool destructive, bool take_required, uint32_t cnt, bool related_exists);
266 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
267 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
268 std::string new_midi_source_path (const std::string&, bool need_source_lock = true);
270 /** create a new track or bus from a template (XML path)
271 * @param how_many how many tracks or busses to create
272 * @param template_path path to xml template file
273 * @param insert_at position where to add new track, use PresentationInfo::max_order to append at the end.
274 * @param name name (prefix) of the route to create
275 * @param pd Playlist disposition
276 * @return list of newly created routes
278 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, const std::string& template_path, const std::string& name, PlaylistDisposition pd = NewPlaylist);
279 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
280 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path,
281 uint32_t channels, std::vector<std::string> const & smf_track_names);
283 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
285 void process (pframes_t nframes);
287 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
288 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
289 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
290 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
291 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
293 bool have_rec_enabled_track () const;
294 bool have_rec_disabled_track () const;
296 bool have_captured() const { return _have_captured; }
298 void refill_all_track_buffers ();
299 Butler* butler() { return _butler; }
300 void butler_transport_work ();
302 void refresh_disk_space ();
304 int load_routes (const XMLNode&, int);
305 boost::shared_ptr<RouteList> get_routes() const {
306 return routes.reader ();
309 boost::shared_ptr<RTTaskList> rt_tasklist () { return _rt_tasklist; }
311 RouteList get_routelist (bool mixer_order = false, PresentationInfo::Flag fl = PresentationInfo::MixerRoutes) const;
313 CoreSelection& selection () { return *_selection; }
315 /* because the set of Stripables consists of objects managed
316 * independently, in multiple containers within the Session (or objects
317 * owned by the session), we fill out a list in-place rather than
318 * return a pointer to a copy of the (RCU) managed list, as happens
322 void get_stripables (StripableList&, PresentationInfo::Flag fl = PresentationInfo::MixerStripables) const;
323 StripableList get_stripables () const;
324 boost::shared_ptr<RouteList> get_tracks() const;
325 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
326 boost::shared_ptr<RouteList> get_routes_with_regions_at (samplepos_t const) const;
328 boost::shared_ptr<AudioTrack> get_nth_audio_track (int nth) const;
330 uint32_t nstripables (bool with_monitor = false) const;
331 uint32_t nroutes() const { return routes.reader()->size(); }
332 uint32_t ntracks () const;
333 uint32_t nbusses () const;
335 bool plot_process_graph (std::string const& file_name) const;
337 boost::shared_ptr<BundleList> bundles () {
338 return _bundles.reader ();
341 void notify_presentation_info_change ();
343 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
344 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
345 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
347 static char session_name_is_legal (const std::string&);
348 bool io_name_is_legal (const std::string&) const;
349 boost::shared_ptr<Route> route_by_name (std::string) const;
350 boost::shared_ptr<Route> route_by_id (PBD::ID) const;
351 boost::shared_ptr<Stripable> stripable_by_id (PBD::ID) const;
352 boost::shared_ptr<Stripable> get_remote_nth_stripable (PresentationInfo::order_t n, PresentationInfo::Flag) const;
353 boost::shared_ptr<Route> get_remote_nth_route (PresentationInfo::order_t n) const;
354 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt) const;
355 void routes_using_input_from (const std::string& str, RouteList& rl);
357 bool route_name_unique (std::string) const;
358 bool route_name_internal (std::string) const;
360 uint32_t track_number_decimals () const {
361 return _track_number_decimals;
364 bool get_record_enabled() const {
365 return (record_status () >= Enabled);
368 RecordState record_status() const {
369 return (RecordState) g_atomic_int_get (&_record_status);
372 bool actively_recording () const {
373 return record_status() == Recording;
376 bool record_enabling_legal () const;
377 void maybe_enable_record (bool rt_context = false);
378 void disable_record (bool rt_context, bool force = false);
379 void step_back_from_record ();
381 void set_all_tracks_record_enabled(bool);
383 void maybe_write_autosave ();
385 /* Emitted when all i/o connections are complete */
387 PBD::Signal0<void> IOConnectionsComplete;
389 /* Record status signals */
391 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
392 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
393 from the previous signal and session state.
395 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
397 /* Emited when session is loaded */
398 PBD::Signal0<void> SessionLoaded;
400 /* Transport mechanism signals */
402 /** Emitted on the following changes in transport state:
403 * - stop (from the butler thread)
404 * - change in whether or not we are looping (from the process thread)
405 * - change in the play range (from the process thread)
406 * - start (from the process thread)
409 PBD::Signal0<void> TransportStateChange;
411 PBD::Signal1<void,samplepos_t> PositionChanged; /* sent after any non-sequential motion */
412 PBD::Signal1<void,samplepos_t> Xrun;
413 PBD::Signal0<void> TransportLooped;
415 /** emitted when a locate has occurred */
416 PBD::Signal0<void> Located;
418 PBD::Signal1<void,RouteList&> RouteAdded;
419 /** Emitted when a property of one of our route groups changes.
420 * The parameter is the RouteGroup that has changed.
422 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
423 /** Emitted when a route is added to one of our route groups.
424 * First parameter is the RouteGroup, second is the route.
426 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
427 /** Emitted when a route is removed from one of our route groups.
428 * First parameter is the RouteGroup, second is the route.
430 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
432 /** Emitted when a foldback send is created or deleted
434 PBD::Signal0<void> FBSendsChanged;
436 /* Step Editing status changed */
437 PBD::Signal1<void,bool> StepEditStatusChange;
439 /* Timecode state signals */
440 PBD::Signal0<void> MtcOrLtcInputPortChanged;
442 void queue_event (SessionEvent*);
444 void request_roll_at_and_return (samplepos_t start, samplepos_t return_to);
445 void request_bounded_roll (samplepos_t start, samplepos_t end);
446 void request_stop (bool abort = false, bool clear_state = false, TransportRequestSource origin = TRS_UI);
447 void request_locate (samplepos_t sample, bool with_roll = false, TransportRequestSource origin = TRS_UI);
449 void request_play_loop (bool yn, bool leave_rolling = false);
450 bool get_play_loop () const { return play_loop; }
452 samplepos_t last_transport_start () const { return _last_roll_location; }
454 void goto_start (bool and_roll = false);
455 void use_rf_shuttle_speed ();
456 void allow_auto_play (bool yn);
457 void request_transport_speed (double speed, bool as_default = true, TransportRequestSource origin = TRS_UI);
458 void request_transport_speed_nonzero (double, bool as_default = true, TransportRequestSource origin = TRS_UI);
459 void request_overwrite_buffer (boost::shared_ptr<Track>, OverwriteReason);
460 void adjust_playback_buffering();
461 void adjust_capture_buffering();
463 bool global_locate_pending() const { return _global_locate_pending; }
464 bool locate_pending() const;
465 bool declick_in_progress () const;
466 bool transport_locked () const;
470 samplepos_t current_end_sample () const;
471 samplepos_t current_start_sample () const;
472 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
473 samplecnt_t sample_rate () const { return _current_sample_rate; }
474 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
475 samplecnt_t nominal_sample_rate () const { return _nominal_sample_rate; }
476 samplecnt_t frames_per_hour () const { return _frames_per_hour; }
478 double samples_per_timecode_frame() const { return _samples_per_timecode_frame; }
479 samplecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
481 MIDI::byte get_mtc_timecode_bits() const {
482 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
485 double timecode_frames_per_second() const;
486 bool timecode_drop_frames() const;
490 Locations *locations() { return _locations; }
492 PBD::Signal1<void,Location*> auto_loop_location_changed;
493 PBD::Signal1<void,Location*> auto_punch_location_changed;
494 PBD::Signal0<void> locations_modified;
496 void set_auto_punch_location (Location *);
497 void set_auto_loop_location (Location *);
498 void set_session_extents (samplepos_t start, samplepos_t end);
499 bool session_range_is_free () const { return _session_range_is_free; }
500 void set_session_range_is_free (bool);
502 pframes_t get_block_size () const { return current_block_size; }
503 samplecnt_t worst_output_latency () const { return _worst_output_latency; }
504 samplecnt_t worst_input_latency () const { return _worst_input_latency; }
505 samplecnt_t worst_route_latency () const { return _worst_route_latency; }
506 samplecnt_t worst_latency_preroll () const;
507 samplecnt_t worst_latency_preroll_buffer_size_ceil () const;
509 PBD::Signal0<void> LatencyUpdated;
512 std::string new_parent_folder; /* parent folder where new session folder will be created */
513 std::string new_name; /* name of newly saved session */
514 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
515 bool include_media; /* true if the newly saved session should contain references to media */
516 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
517 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
519 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
521 /* emitted as we make progress. 3 arguments passed to signal
524 * 1: percentage complete measured as a fraction (0-1.0) of
525 * total data copying done.
526 * 2: number of files copied so far
527 * 3: total number of files to copy
529 * Handler should return true for save-as to continue, or false
530 * to stop (and remove all evidence of partial save-as).
532 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
534 /* if save_as() returns non-zero, this string will indicate the reason why.
536 std::string failure_message;
539 int save_as (SaveAs&);
542 * @param snapshot_name name of the session (use an empty string for the current name)
543 * @param pending save a 'recovery', not full state (default: false)
544 * @param switch_to_snapshot switch to given snapshot after saving (default: false)
545 * @param template_only save a session template (default: false)
546 * @param for_archive save only data relevant for session-archive
547 * @param only_used_assets skip Sources that are not used, mainly useful with \p for_archive
548 * @return zero on success
550 int save_state (std::string snapshot_name,
551 bool pending = false,
552 bool switch_to_snapshot = false,
553 bool template_only = false,
554 bool for_archive = false,
555 bool only_used_assets = false);
563 int archive_session (const std::string&, const std::string&,
564 ArchiveEncode compress_audio = FLAC_16BIT,
565 PBD::FileArchive::CompressionLevel compression_level = PBD::FileArchive::CompressGood,
566 bool only_used_sources = false,
569 int restore_state (std::string snapshot_name);
570 int save_template (const std::string& template_name, const std::string& description = "", bool replace_existing = false);
571 int save_history (std::string snapshot_name = "");
572 int restore_history (std::string snapshot_name);
573 void remove_state (std::string snapshot_name);
574 void rename_state (std::string old_name, std::string new_name);
575 void remove_pending_capture_state ();
576 int rename (const std::string&);
577 bool get_nsm_state () const { return _under_nsm_control; }
578 void set_nsm_state (bool state) { _under_nsm_control = state; }
579 bool save_default_options ();
581 PBD::Signal1<void,std::string> StateSaved;
582 PBD::Signal0<void> StateReady;
584 /* emitted when session needs to be saved due to some internal
585 * event or condition (i.e. not in response to a user request).
587 * Only one object should
588 * connect to this signal and take responsibility.
590 * Argument is the snapshot name to use when saving.
592 PBD::Signal1<void,std::string> SaveSessionRequested;
594 /* emitted during a session save to allow other entities to add state, via
595 * extra XML, to the session state
597 PBD::Signal0<void> SessionSaveUnderway;
599 std::vector<std::string> possible_states() const;
600 static std::vector<std::string> possible_states (std::string path);
602 bool export_track_state (boost::shared_ptr<RouteList> rl, const std::string& path);
604 /// The instant xml file is written to the session directory
605 void add_instant_xml (XMLNode&, bool write_to_config = true);
606 XMLNode* instant_xml (const std::string& str);
608 enum StateOfTheState {
613 InitialConnecting = 0x8,
619 class StateProtector {
621 StateProtector (Session* s) : _session (s) {
622 g_atomic_int_inc (&s->_suspend_save);
625 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
626 while (_session->_save_queued) {
627 _session->_save_queued = false;
628 _session->save_state ("");
636 class ProcessorChangeBlocker {
638 ProcessorChangeBlocker (Session* s, bool rc = true)
640 , _reconfigure_on_delete (rc)
642 g_atomic_int_inc (&s->_ignore_route_processor_changes);
644 ~ProcessorChangeBlocker () {
645 if (g_atomic_int_dec_and_test (&_session->_ignore_route_processor_changes)) {
646 if (_reconfigure_on_delete) {
647 _session->route_processors_changed (RouteProcessorChange ());
653 bool _reconfigure_on_delete;
656 RouteGroup* new_route_group (const std::string&);
657 void add_route_group (RouteGroup *);
658 void remove_route_group (RouteGroup* rg) { if (rg) remove_route_group (*rg); }
659 void remove_route_group (RouteGroup&);
660 void reorder_route_groups (std::list<RouteGroup*>);
662 RouteGroup* route_group_by_name (std::string);
663 RouteGroup& all_route_group() const;
665 PBD::Signal1<void,RouteGroup*> route_group_added;
666 PBD::Signal0<void> route_group_removed;
667 PBD::Signal0<void> route_groups_reordered;
669 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
670 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
675 std::list<RouteGroup*> const & route_groups () const {
676 return _route_groups;
679 /* fundamental operations. duh. */
681 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
684 RouteGroup* route_group,
686 std::string name_template,
687 PresentationInfo::order_t order,
688 TrackMode mode = Normal
691 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
692 const ChanCount& input, const ChanCount& output, bool strict_io,
693 boost::shared_ptr<PluginInfo> instrument,
694 Plugin::PresetRecord* pset,
695 RouteGroup* route_group, uint32_t how_many, std::string name_template,
696 PresentationInfo::order_t,
697 TrackMode mode = Normal
700 RouteList new_audio_route (int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template, PresentationInfo::Flag, PresentationInfo::order_t);
701 RouteList new_midi_route (RouteGroup* route_group, uint32_t how_many, std::string name_template, bool strict_io, boost::shared_ptr<PluginInfo> instrument, Plugin::PresetRecord*, PresentationInfo::Flag, PresentationInfo::order_t);
703 void remove_routes (boost::shared_ptr<RouteList>);
704 void remove_route (boost::shared_ptr<Route>);
706 void resort_routes ();
707 void resort_routes_using (boost::shared_ptr<RouteList>);
709 AudioEngine & engine() { return _engine; }
710 AudioEngine const & engine () const { return _engine; }
712 static std::string default_track_name_pattern (DataType);
716 samplepos_t transport_sample () const { return _transport_sample; }
717 samplepos_t record_location () const { return _last_record_location; }
718 samplepos_t audible_sample (bool* latent_locate = NULL) const;
719 samplepos_t requested_return_sample() const { return _requested_return_sample; }
720 void set_requested_return_sample(samplepos_t return_to);
721 boost::optional<samplepos_t> const & nominal_jack_transport_sample() { return _nominal_jack_transport_sample; }
723 bool compute_audible_delta (samplepos_t& pos_and_delta) const;
724 samplecnt_t remaining_latency_preroll () const { return _remaining_latency_preroll; }
738 void sync_time_vars();
740 void bbt_time (samplepos_t when, Timecode::BBT_Time&);
741 void timecode_to_sample(Timecode::Time& timecode, samplepos_t& sample, bool use_offset, bool use_subframes) const;
742 void sample_to_timecode(samplepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
743 void timecode_time (Timecode::Time &);
744 void timecode_time (samplepos_t when, Timecode::Time&);
745 void timecode_time_subframes (samplepos_t when, Timecode::Time&);
747 void timecode_duration (samplecnt_t, Timecode::Time&) const;
748 void timecode_duration_string (char *, size_t len, samplecnt_t) const;
750 samplecnt_t convert_to_samples (AnyTime const & position);
751 samplecnt_t any_duration_to_samples (samplepos_t position, AnyTime const & duration);
753 static PBD::Signal1<void, samplepos_t> StartTimeChanged;
754 static PBD::Signal1<void, samplepos_t> EndTimeChanged;
756 void request_sync_source (boost::shared_ptr<TransportMaster>);
757 bool synced_to_engine() const;
759 double engine_speed() const { return _engine_speed; }
760 double actual_speed() const {
761 if (_transport_speed > 0) return _engine_speed;
762 if (_transport_speed < 0) return - _engine_speed;
765 double transport_speed() const { return _count_in_samples > 0 ? 0. : _transport_speed; }
766 bool transport_stopped() const;
767 bool transport_rolling() const;
769 bool silent () { return _silent; }
771 TempoMap& tempo_map() { return *_tempo_map; }
772 const TempoMap& tempo_map() const { return *_tempo_map; }
773 void maybe_update_tempo_from_midiclock_tempo (float bpm);
775 unsigned int get_xrun_count () const {return _xrun_count; }
776 void reset_xrun_count () {_xrun_count = 0; }
780 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
782 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
783 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
784 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
786 /* source management */
788 void import_files (ImportStatus&);
789 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
790 std::string build_tmp_convert_name (std::string file);
792 boost::shared_ptr<ExportHandler> get_export_handler ();
793 boost::shared_ptr<ExportStatus> get_export_status ();
795 int start_audio_export (samplepos_t position, bool realtime = false, bool region_export = false);
797 PBD::Signal1<int, samplecnt_t> ProcessExport;
798 static PBD::Signal2<void,std::string, std::string> Exported;
800 void add_source (boost::shared_ptr<Source>);
801 void remove_source (boost::weak_ptr<Source>);
803 void cleanup_regions();
804 bool can_cleanup_peakfiles () const;
805 int cleanup_peakfiles ();
806 int cleanup_sources (CleanupReport&);
807 int cleanup_trash_sources (CleanupReport&);
809 int destroy_sources (std::list<boost::shared_ptr<Source> > const&);
811 int remove_last_capture ();
812 void get_last_capture_sources (std::list<boost::shared_ptr<Source> >&);
814 /** handlers should return -1 for "stop cleanup",
815 0 for "yes, delete this playlist",
816 1 for "no, don't delete this playlist".
818 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
820 /** handlers should return 0 for "ignore the rate mismatch",
821 !0 for "do not use this session"
823 static PBD::Signal2<int, samplecnt_t, samplecnt_t> AskAboutSampleRateMismatch;
825 /** non interactive message */
826 static PBD::Signal2<void, samplecnt_t, samplecnt_t> NotifyAboutSampleRateMismatch;
828 /** handlers should return !0 for use pending state, 0 for ignore it.
830 static PBD::Signal0<int> AskAboutPendingState;
832 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
833 size_t, std::string const &, uint32_t, bool destructive);
835 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
836 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
838 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
839 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
840 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&, bool need_source_lock) const;
841 uint32_t count_sources_by_origin (const std::string&);
843 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
845 /* Curves and AutomationLists (TODO when they go away) */
846 void add_automation_list(AutomationList*);
850 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
851 void audition_playlist ();
852 void audition_region (boost::shared_ptr<Region>);
853 void cancel_audition ();
854 bool is_auditioning () const;
856 PBD::Signal1<void,bool> AuditionActive;
859 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
860 void unregister_lua_function (const std::string& name);
861 std::vector<std::string> registered_lua_functions ();
862 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
863 void scripts_changed (); // called from lua, updates _n_lua_scripts
865 PBD::Signal0<void> LuaScriptsChanged;
867 /* flattening stuff */
869 boost::shared_ptr<Region> write_one_track (Track&, samplepos_t start, samplepos_t end,
870 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
871 boost::shared_ptr<Processor> endpoint,
872 bool include_endpoint, bool for_export, bool for_freeze);
873 int freeze_all (InterThreadInfo&);
875 /* session-wide solo/mute/rec-enable */
878 std::vector<boost::weak_ptr<AutomationControl> > cancel_all_mute ();
880 bool soloing() const { return _non_soloed_outs_muted; }
881 bool listening() const { return _listen_cnt > 0; }
882 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
883 void cancel_all_solo ();
885 bool solo_selection_active();
886 void solo_selection( StripableList&, bool );
888 static const SessionEvent::RTeventCallback rt_cleanup;
890 void clear_all_solo_state (boost::shared_ptr<RouteList>);
892 /* Control-based methods */
894 void set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition);
895 void set_control (boost::shared_ptr<AutomationControl>, double val, PBD::Controllable::GroupControlDisposition);
897 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
899 PBD::Signal1<void,bool> SoloActive;
900 PBD::Signal0<void> SoloChanged;
901 PBD::Signal0<void> MuteChanged;
902 PBD::Signal0<void> IsolatedChanged;
903 PBD::Signal0<void> MonitorChanged;
904 PBD::Signal0<void> MonitorBusAddedOrRemoved;
906 PBD::Signal0<void> session_routes_reconnected;
908 /* monitor/master out */
909 int add_master_bus (ChanCount const&);
911 void reset_monitor_section ();
912 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
914 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
915 boost::shared_ptr<Route> master_out() const { return _master_out; }
917 PresentationInfo::order_t master_order_key () const { return _master_out ? _master_out->presentation_info ().order () : -1; }
918 bool ensure_stripable_sort_order ();
920 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
921 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
922 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
923 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
924 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
925 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
926 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
928 static void set_disable_all_loaded_plugins (bool yn) {
929 _disable_all_loaded_plugins = yn;
931 static bool get_disable_all_loaded_plugins() {
932 return _disable_all_loaded_plugins;
934 static void set_bypass_all_loaded_plugins (bool yn) {
935 _bypass_all_loaded_plugins = yn;
937 static bool get_bypass_all_loaded_plugins() {
938 return _bypass_all_loaded_plugins;
941 uint32_t next_send_id();
942 uint32_t next_aux_send_id();
943 uint32_t next_return_id();
944 uint32_t next_insert_id();
945 void mark_send_id (uint32_t);
946 void mark_aux_send_id (uint32_t);
947 void mark_return_id (uint32_t);
948 void mark_insert_id (uint32_t);
949 void unmark_send_id (uint32_t);
950 void unmark_aux_send_id (uint32_t);
951 void unmark_return_id (uint32_t);
952 void unmark_insert_id (uint32_t);
954 /* s/w "RAID" management */
956 boost::optional<samplecnt_t> available_capture_duration();
960 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
961 void remove_bundle (boost::shared_ptr<Bundle>);
962 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
964 PBD::Signal0<void> BundleAddedOrRemoved;
968 /* History (for editors, mixers, UIs etc.) */
970 /** Undo some transactions.
971 * @param n Number of transactions to undo.
973 void undo (uint32_t n);
974 /** Redo some transactions.
975 * @param n Number of transactions to undo.
977 void redo (uint32_t n);
979 UndoHistory& history() { return _history; }
981 uint32_t undo_depth() const { return _history.undo_depth(); }
982 uint32_t redo_depth() const { return _history.redo_depth(); }
983 std::string next_undo() const { return _history.next_undo(); }
984 std::string next_redo() const { return _history.next_redo(); }
986 /** begin collecting undo information
988 * This call must always be followed by either
989 * begin_reversible_command() or commit_reversible_command()
991 * @param cmd_name human readable name for the undo operation
993 void begin_reversible_command (const std::string& cmd_name);
994 void begin_reversible_command (GQuark);
995 /** abort an open undo command
996 * This must only be called after begin_reversible_command ()
998 void abort_reversible_command ();
999 /** finalize an undo command and commit pending transactions
1001 * This must only be called after begin_reversible_command ()
1002 * @param cmd (additional) command to add
1004 void commit_reversible_command (Command* cmd = 0);
1006 void add_command (Command *const cmd);
1008 /** create an StatefulDiffCommand from the given object and add it to the stack.
1010 * This function must only be called after begin_reversible_command.
1011 * Failing to do so may lead to a crash.
1013 * @param sfd the object to diff
1014 * @returns the allocated StatefulDiffCommand (already added via add_command)
1016 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
1018 /** @return The list of operations that are currently in progress */
1019 std::list<GQuark> const & current_operations () {
1020 return _current_trans_quarks;
1023 bool operation_in_progress (GQuark) const;
1025 void add_commands (std::vector<Command*> const & cmds);
1027 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
1029 // these commands are implemented in libs/ardour/session_command.cc
1030 Command* memento_command_factory(XMLNode* n);
1031 Command* stateful_diff_command_factory (XMLNode *);
1032 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
1036 boost::shared_ptr<IO> click_io() { return _click_io; }
1037 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
1039 /* disk, buffer loads */
1041 uint32_t playback_load ();
1042 uint32_t capture_load ();
1046 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
1047 void request_cancel_play_range ();
1048 bool get_play_range () const { return _play_range; }
1050 void maybe_update_session_range (samplepos_t, samplepos_t);
1053 samplecnt_t preroll_samples (samplepos_t) const;
1055 void request_preroll_record_trim (samplepos_t start, samplecnt_t preroll);
1056 void request_count_in_record ();
1058 samplecnt_t preroll_record_trim_len () const { return _preroll_record_trim_len; }
1060 /* temporary hacks to allow selection to be pushed from GUI into backend.
1061 Whenever we move the selection object into libardour, these will go away.
1063 void set_range_selection (samplepos_t start, samplepos_t end);
1064 void set_object_selection (samplepos_t start, samplepos_t end);
1065 void clear_range_selection ();
1066 void clear_object_selection ();
1068 /* buffers for gain and pan */
1070 gain_t* gain_automation_buffer () const;
1071 gain_t* trim_automation_buffer () const;
1072 gain_t* send_gain_automation_buffer () const;
1073 gain_t* scratch_automation_buffer () const;
1074 pan_t** pan_automation_buffer () const;
1076 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
1080 static int vst_current_loading_id;
1081 static const char* vst_can_do_strings[];
1082 static const int vst_can_do_string_count;
1084 static intptr_t vst_callback (
1093 static PBD::Signal0<void> SendFeedback;
1097 boost::shared_ptr<Speakers> get_speakers ();
1101 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
1103 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
1104 boost::shared_ptr<AutomationControl> automation_control_by_id (const PBD::ID&);
1106 void add_controllable (boost::shared_ptr<PBD::Controllable>);
1108 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
1110 SessionConfiguration config;
1112 SessionConfiguration* cfg () { return &config; }
1114 bool exporting () const {
1118 bool bounce_processing() const {
1119 return _bounce_processing_active;
1122 /* this is a private enum, but setup_enum_writer() needs it,
1123 and i can't find a way to give that function
1124 friend access. sigh.
1127 enum PostTransportWork {
1128 PostTransportStop = 0x1,
1129 /* PostTransportDuration */
1130 PostTransportLocate = 0x4,
1131 PostTransportRoll = 0x8,
1132 PostTransportAbort = 0x10,
1133 PostTransportOverWrite = 0x20,
1134 /* PostTransportSpeed = 0x40, */
1135 PostTransportAudition = 0x80,
1136 PostTransportReverse = 0x100,
1137 /* PostTransportInputChange = 0x200, */
1138 /*PostTransportCurveRealloc = 0x400, */
1139 PostTransportClearSubstate = 0x800,
1140 PostTransportAdjustPlaybackBuffering = 0x1000,
1141 PostTransportAdjustCaptureBuffering = 0x2000
1144 boost::shared_ptr<SessionPlaylists> playlists () const { return _playlists; }
1146 void send_mmc_locate (samplepos_t);
1147 void queue_full_time_code () { _send_timecode_update = true; }
1148 void queue_song_position_pointer () { /* currently does nothing */ }
1150 bool step_editing() const { return (_step_editors > 0); }
1152 void request_suspend_timecode_transmission ();
1153 void request_resume_timecode_transmission ();
1154 bool timecode_transmission_suspended () const;
1156 std::vector<std::string> source_search_path(DataType) const;
1157 void ensure_search_path_includes (const std::string& path, DataType type);
1158 void remove_dir_from_search_path (const std::string& path, DataType type);
1160 std::list<std::string> unknown_processors () const;
1162 /** Emitted when a feedback cycle has been detected within Ardour's signal
1163 processing path. Until it is fixed (by the user) some (unspecified)
1164 routes will not be run.
1166 static PBD::Signal0<void> FeedbackDetected;
1168 /** Emitted when a graph sort has successfully completed, which means
1169 that it has no feedback cycles.
1171 static PBD::Signal0<void> SuccessfulGraphSort;
1173 /* handlers can return an integer value:
1174 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1175 to modify the search path and we should try to find it again.
1176 1: quit entire session load
1177 2: as 0, but don't ask about other missing files
1178 3: don't ask about other missing files, and just mark this one missing
1179 -1: just mark this one missing
1180 any other value: as -1
1182 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1184 void set_missing_file_replacement (const std::string& mfr) {
1185 _missing_file_replacement = mfr;
1188 /** Emitted when the session wants Ardour to quit */
1189 static PBD::Signal0<void> Quit;
1191 /** Emitted when Ardour is asked to load a session in an older session
1192 * format, and makes a backup copy.
1194 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1196 SceneChanger* scene_changer() const { return _scene_changer; }
1198 /* asynchronous MIDI control ports */
1200 boost::shared_ptr<Port> midi_input_port () const;
1201 boost::shared_ptr<Port> midi_output_port () const;
1202 boost::shared_ptr<Port> mmc_output_port () const;
1203 boost::shared_ptr<Port> mmc_input_port () const;
1204 boost::shared_ptr<Port> scene_input_port () const;
1205 boost::shared_ptr<Port> scene_output_port () const;
1207 boost::shared_ptr<AsyncMIDIPort> vkbd_output_port () const;
1209 /* synchronous MIDI ports used for synchronization */
1211 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1212 boost::shared_ptr<MidiPort> mtc_output_port () const;
1213 boost::shared_ptr<Port> ltc_output_port() const;
1215 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1217 MIDI::MachineControl& mmc() { return *_mmc; }
1219 void reconnect_midi_scene_ports (bool);
1220 void reconnect_mmc_ports (bool);
1222 void reconnect_ltc_output ();
1224 VCAManager& vca_manager() { return *_vca_manager; }
1225 VCAManager* vca_manager_ptr() { return _vca_manager; }
1227 void auto_connect_thread_wakeup ();
1229 double compute_speed_from_master (pframes_t nframes);
1230 bool transport_master_is_external() const;
1231 bool transport_master_no_external_or_using_engine() const;
1232 boost::shared_ptr<TransportMaster> transport_master() const;
1234 void import_pt (PTFFormat& ptf, ImportStatus& status);
1235 bool import_sndfile_as_region (std::string path, SrcQuality quality, samplepos_t& pos, SourceList& sources, ImportStatus& status);
1238 friend class AudioEngine;
1239 void set_block_size (pframes_t nframes);
1240 void set_sample_rate (samplecnt_t nframes);
1243 void update_latency_compensation (bool force, bool called_from_backend);
1247 void locate (samplepos_t, bool with_roll, bool with_flush, bool for_loop_end=false, bool force=false, bool with_mmc=true);
1248 void stop_transport (bool abort = false, bool clear_state = false);
1249 void start_transport ();
1250 void butler_completed_transport_work ();
1251 void post_locate ();
1252 void schedule_butler_for_transport_work ();
1253 bool should_roll_after_locate () const;
1254 double speed() const { return _transport_speed; }
1257 int create (const std::string& mix_template, BusProfile const *);
1260 static guint _name_id_counter;
1261 static void init_name_id_counter (guint n);
1262 static unsigned int name_id_counter ();
1264 boost::shared_ptr<SessionPlaylists> _playlists;
1266 /* stuff used in process() should be close together to
1270 typedef void (Session::*process_function_type)(pframes_t);
1272 AudioEngine& _engine;
1273 mutable gint processing_prohibited;
1274 process_function_type process_function;
1275 process_function_type last_process_function;
1276 bool _bounce_processing_active;
1277 bool waiting_for_sync_offset;
1278 samplecnt_t _base_sample_rate; // sample-rate of the session at creation time, "native" SR
1279 samplecnt_t _nominal_sample_rate; // overridden by audioengine setting
1280 samplecnt_t _current_sample_rate; // this includes video pullup offset
1281 mutable gint _record_status;
1282 samplepos_t _transport_sample;
1284 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1285 bool _session_range_is_free;
1287 samplecnt_t _remaining_latency_preroll;
1289 // varispeed playback -- TODO: move out of session to backend.
1290 double _engine_speed;
1291 double _transport_speed; // only: -1, 0, +1
1292 double _default_transport_speed;
1293 double _last_transport_speed;
1294 double _signalled_varispeed;
1295 double _target_transport_speed;
1297 bool auto_play_legal;
1298 samplepos_t _requested_return_sample;
1299 pframes_t current_block_size;
1300 samplecnt_t _worst_output_latency;
1301 samplecnt_t _worst_input_latency;
1302 samplecnt_t _worst_route_latency;
1303 uint32_t _send_latency_changes;
1304 bool _have_captured;
1305 bool _non_soloed_outs_muted;
1307 uint32_t _listen_cnt;
1308 uint32_t _solo_isolated_cnt;
1311 bool _under_nsm_control;
1312 unsigned int _xrun_count;
1314 std::string _missing_file_replacement;
1316 void add_monitor_section ();
1317 void remove_monitor_section ();
1319 void update_latency (bool playback);
1320 bool update_route_latency (bool reverse, bool apply_to_delayline);
1322 void initialize_latencies ();
1323 void set_worst_io_latencies ();
1324 void set_worst_output_latency ();
1325 void set_worst_input_latency ();
1327 void send_latency_compensation_change ();
1328 void set_worst_io_latencies_x (IOChange, void *);
1330 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1332 void process_scrub (pframes_t);
1333 void process_without_events (pframes_t);
1334 void process_with_events (pframes_t);
1335 void process_audition (pframes_t);
1336 void process_export (pframes_t);
1337 void process_export_fw (pframes_t);
1339 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1340 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1341 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1343 static const samplecnt_t bounce_chunk_size;
1345 /* Transport master DLL */
1347 enum TransportMasterState {
1348 Stopped, /* no incoming or invalid signal/data for master to run with */
1349 Waiting, /* waiting to get full lock on incoming signal/data */
1350 Running /* lock achieved, master is generating meaningful speed & position */
1353 samplepos_t master_wait_end;
1354 void track_transport_master (float slave_speed, samplepos_t slave_transport_sample);
1355 bool follow_transport_master (pframes_t nframes);
1357 void sync_source_changed (SyncSource, samplepos_t pos, pframes_t cycle_nframes);
1358 void reset_slave_state ();
1360 bool post_export_sync;
1361 samplepos_t post_export_position;
1364 bool _export_rolling;
1365 bool _realtime_export;
1366 bool _region_export;
1367 samplepos_t _export_preroll;
1369 boost::shared_ptr<ExportHandler> export_handler;
1370 boost::shared_ptr<ExportStatus> export_status;
1373 int stop_audio_export ();
1374 void finalize_audio_export (TransportRequestSource trs);
1375 void finalize_export_internal (bool stop_freewheel);
1376 bool _pre_export_mmc_enabled;
1378 PBD::ScopedConnection export_freewheel_connection;
1380 void get_track_statistics ();
1381 int process_routes (pframes_t, bool& need_butler);
1382 int silent_process_routes (pframes_t, bool& need_butler);
1384 /** @return 1 if there is a pending declick fade-in,
1385 -1 if there is a pending declick fade-out,
1386 0 if there is no pending declick.
1388 bool maybe_stop (samplepos_t limit);
1389 bool maybe_sync_start (pframes_t &);
1395 /** Number of process samples since the last MTC output (when sending MTC); used to
1396 * know when to send full MTC messages every so often.
1398 pframes_t _pframes_since_last_mtc;
1401 samplepos_t last_loopend;
1403 boost::scoped_ptr<SessionDirectory> _session_dir;
1406 void graph_reordered (bool called_from_backend);
1408 /** current snapshot name, without the .ardour suffix */
1409 void set_snapshot_name (const std::string &);
1410 void save_snapshot_name (const std::string &);
1411 std::string _current_snapshot_name;
1413 XMLTree* state_tree;
1414 bool state_was_pending;
1415 StateOfTheState _state_of_the_state;
1417 friend class StateProtector;
1418 gint _suspend_save; /* atomic */
1419 volatile bool _save_queued;
1420 Glib::Threads::Mutex save_state_lock;
1421 Glib::Threads::Mutex save_source_lock;
1422 Glib::Threads::Mutex peak_cleanup_lock;
1424 int load_options (const XMLNode&);
1425 int load_state (std::string snapshot_name);
1426 static int parse_stateful_loading_version (const std::string&);
1428 samplepos_t _last_roll_location;
1429 /** the session sample time at which we last rolled, located, or changed transport direction */
1430 samplepos_t _last_roll_or_reversal_location;
1431 samplepos_t _last_record_location;
1434 bool pending_auto_loop;
1436 PBD::ReallocPool _mempool;
1438 Glib::Threads::Mutex lua_lock;
1439 luabridge::LuaRef * _lua_run;
1440 luabridge::LuaRef * _lua_add;
1441 luabridge::LuaRef * _lua_del;
1442 luabridge::LuaRef * _lua_list;
1443 luabridge::LuaRef * _lua_load;
1444 luabridge::LuaRef * _lua_save;
1445 luabridge::LuaRef * _lua_cleanup;
1446 uint32_t _n_lua_scripts;
1449 void try_run_lua (pframes_t);
1453 TransportFSM* _transport_fsm;
1455 static const PostTransportWork ProcessCannotProceedMask =
1457 PostTransportAudition|
1458 PostTransportClearSubstate);
1460 gint _post_transport_work; /* accessed only atomic ops */
1461 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1462 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1463 void add_post_transport_work (PostTransportWork ptw);
1465 void schedule_playback_buffering_adjustment ();
1466 void schedule_capture_buffering_adjustment ();
1468 Locations* _locations;
1469 void location_added (Location*);
1470 void location_removed (Location*);
1471 void locations_changed ();
1472 void _locations_changed (const Locations::LocationList&);
1474 void update_skips (Location*, bool consolidate);
1475 void update_marks (Location* loc);
1476 void consolidate_skips (Location*);
1477 void sync_locations_to_skips ();
1478 void _sync_locations_to_skips ();
1480 PBD::ScopedConnectionList skip_update_connections;
1481 bool _ignore_skips_updates;
1483 PBD::ScopedConnectionList punch_connections;
1484 void auto_punch_start_changed (Location *);
1485 void auto_punch_end_changed (Location *);
1486 void auto_punch_changed (Location *);
1488 PBD::ScopedConnectionList loop_connections;
1489 void auto_loop_changed (Location *);
1491 void pre_engine_init (std::string path);
1492 int post_engine_init ();
1493 int immediately_post_engine ();
1494 void remove_empty_sounds ();
1496 void session_loaded ();
1498 void setup_midi_control ();
1499 int midi_read (MIDI::Port *);
1501 void enable_record ();
1503 void increment_transport_position (samplecnt_t val) {
1504 if (max_samplepos - val < _transport_sample) {
1505 _transport_sample = max_samplepos;
1507 _transport_sample += val;
1511 void decrement_transport_position (samplecnt_t val) {
1512 if (val < _transport_sample) {
1513 _transport_sample -= val;
1515 _transport_sample = 0;
1519 void post_transport_motion ();
1520 static void *session_loader_thread (void *arg);
1524 /* Signal Forwarding */
1525 void emit_route_signals ();
1526 void emit_thread_run ();
1527 static void *emit_thread (void *);
1528 void emit_thread_start ();
1529 void emit_thread_terminate ();
1531 pthread_t _rt_emit_thread;
1532 bool _rt_thread_active;
1534 pthread_mutex_t _rt_emit_mutex;
1535 pthread_cond_t _rt_emit_cond;
1536 bool _rt_emit_pending;
1538 /* Auto Connect Thread */
1539 static void *auto_connect_thread (void *);
1540 void auto_connect_thread_run ();
1541 void auto_connect_thread_start ();
1542 void auto_connect_thread_terminate ();
1544 pthread_t _auto_connect_thread;
1545 gint _ac_thread_active;
1546 pthread_mutex_t _auto_connect_mutex;
1547 pthread_cond_t _auto_connect_cond;
1549 struct AutoConnectRequest {
1551 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1552 const ChanCount& is,
1553 const ChanCount& os,
1554 const ChanCount& io,
1555 const ChanCount& oo)
1556 : route (boost::weak_ptr<Route> (r))
1557 , connect_inputs (ci)
1561 , output_offset (oo)
1564 boost::weak_ptr <Route> route;
1565 bool connect_inputs;
1566 ChanCount input_start;
1567 ChanCount output_start;
1568 ChanCount input_offset;
1569 ChanCount output_offset;
1572 Glib::Threads::Mutex _update_latency_lock;
1574 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1575 Glib::Threads::Mutex _auto_connect_queue_lock;
1576 AutoConnectQueue _auto_connect_queue;
1577 guint _latency_recompute_pending;
1579 void get_physical_ports (std::vector<std::string>& inputs, std::vector<std::string>& outputs, DataType type,
1580 MidiPortFlags include = MidiPortFlags (0),
1581 MidiPortFlags exclude = MidiPortFlags (0));
1583 void auto_connect (const AutoConnectRequest&);
1584 void queue_latency_recompute ();
1586 /* SessionEventManager interface */
1588 void process_event (SessionEvent*);
1589 void set_next_event ();
1590 void cleanup_event (SessionEvent*,int);
1592 /* MIDI Machine Control */
1595 void spp_continue ();
1598 void mmc_deferred_play (MIDI::MachineControl &);
1599 void mmc_stop (MIDI::MachineControl &);
1600 void mmc_step (MIDI::MachineControl &, int);
1601 void mmc_pause (MIDI::MachineControl &);
1602 void mmc_record_pause (MIDI::MachineControl &);
1603 void mmc_record_strobe (MIDI::MachineControl &);
1604 void mmc_record_exit (MIDI::MachineControl &);
1605 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1606 void mmc_fast_forward (MIDI::MachineControl &);
1607 void mmc_rewind (MIDI::MachineControl &);
1608 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1609 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1610 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1612 struct timeval last_mmc_step;
1615 typedef boost::function<bool()> MidiTimeoutCallback;
1616 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1618 MidiTimeoutList midi_timeouts;
1619 bool mmc_step_timeout ();
1620 void send_immediate_mmc (MIDI::MachineControlCommand);
1622 MIDI::byte mtc_msg[16];
1623 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1624 MIDI::byte midi_msg[16];
1625 double outbound_mtc_timecode_frame;
1626 Timecode::Time transmitting_timecode_time;
1627 int next_quarter_frame_to_send;
1629 double _samples_per_timecode_frame; /* has to be floating point because of drop sample */
1630 samplecnt_t _frames_per_hour;
1631 samplecnt_t _timecode_frames_per_hour;
1633 /* cache the most-recently requested time conversions. This helps when we
1634 * have multiple clocks showing the same time (e.g. the transport sample) */
1635 bool last_timecode_valid;
1636 samplepos_t last_timecode_when;
1637 Timecode::Time last_timecode;
1639 bool _send_timecode_update; ///< Flag to send a full sample (Timecode) MTC message this cycle
1641 int send_midi_time_code_for_cycle (samplepos_t, samplepos_t, pframes_t nframes);
1643 LTCEncoder* ltc_encoder;
1644 ltcsnd_sample_t* ltc_enc_buf;
1646 Timecode::TimecodeFormat ltc_enc_tcformat;
1647 int32_t ltc_buf_off;
1648 int32_t ltc_buf_len;
1651 int32_t ltc_enc_byte;
1652 samplepos_t ltc_enc_pos;
1654 samplepos_t ltc_enc_off;
1656 samplepos_t ltc_prev_cycle;
1658 samplepos_t ltc_timecode_offset;
1659 bool ltc_timecode_negative_offset;
1661 LatencyRange ltc_out_latency;
1663 void ltc_tx_initialize();
1664 void ltc_tx_cleanup();
1665 void ltc_tx_reset();
1666 void ltc_tx_resync_latency();
1667 void ltc_tx_recalculate_position();
1668 void ltc_tx_parse_offset();
1669 void ltc_tx_send_time_code_for_cycle (samplepos_t, samplepos_t, double, double, pframes_t nframes);
1670 PBD::ScopedConnectionList ltc_tx_connections;
1673 void reset_record_status ();
1675 int no_roll (pframes_t nframes);
1676 int fail_roll (pframes_t nframes);
1678 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1679 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1681 MidiControlUI* midi_control_ui;
1683 int start_midi_thread ();
1685 bool should_ignore_transport_request (TransportRequestSource, TransportRequestType) const;
1687 void set_play_loop (bool yn, bool change_transport_state);
1688 void unset_play_loop (bool change_transport_state = false);
1689 void overwrite_some_buffers (boost::shared_ptr<Route>, OverwriteReason);
1690 void flush_all_inserts ();
1691 int micro_locate (samplecnt_t distance);
1693 void force_locate (samplepos_t sample, bool with_roll = false);
1694 void set_transport_speed (double speed, samplepos_t destination_sample, bool abort = false, bool clear_state = false, bool as_default = false);
1695 void realtime_stop (bool abort, bool clear_state);
1696 void realtime_locate (bool);
1697 void non_realtime_start_scrub ();
1698 void non_realtime_set_speed ();
1699 void non_realtime_locate ();
1700 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1701 void non_realtime_overwrite (int entry_request_count, bool& finished);
1702 void engine_halted ();
1703 void engine_running ();
1704 void xrun_recovery ();
1705 void set_track_loop (bool);
1706 bool select_playhead_priority_target (samplepos_t&);
1707 void follow_playhead_priority ();
1709 /* These are synchronous and so can only be called from within the process
1713 int send_full_time_code (samplepos_t, pframes_t nframes);
1714 void send_song_position_pointer (samplepos_t);
1716 TempoMap *_tempo_map;
1717 void tempo_map_changed (const PBD::PropertyChange&);
1719 /* edit/mix groups */
1721 int load_route_groups (const XMLNode&, int);
1723 std::list<RouteGroup *> _route_groups;
1724 RouteGroup* _all_route_group;
1728 boost::shared_ptr<Graph> _process_graph;
1730 SerializedRCUManager<RouteList> routes;
1732 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save, PresentationInfo::order_t);
1733 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect, PresentationInfo::order_t);
1734 bool _adding_routes_in_progress;
1735 bool _reconnecting_routes_in_progress;
1736 bool _route_deletion_in_progress;
1738 uint32_t destructive_index;
1740 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1741 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1742 boost::shared_ptr<Route> XMLRouteFactory_3X (const XMLNode&, int);
1744 void route_processors_changed (RouteProcessorChange);
1746 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1747 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1748 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1749 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1751 /* track numbering */
1753 void reassign_track_numbers ();
1754 uint32_t _track_number_decimals;
1756 /* solo/mute/notifications */
1758 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1759 void route_mute_changed ();
1760 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1761 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1763 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1765 void listen_position_changed ();
1766 void solo_control_mode_changed ();
1768 /* REGION MANAGEMENT */
1770 mutable Glib::Threads::Mutex region_lock;
1772 int load_regions (const XMLNode& node);
1773 int load_compounds (const XMLNode& node);
1775 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1776 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1777 void route_group_property_changed (RouteGroup *);
1781 mutable Glib::Threads::Mutex source_lock;
1785 /* Emited when a new source is added to the session */
1786 PBD::Signal1< void, boost::weak_ptr<Source> > SourceAdded;
1787 PBD::Signal1< void, boost::weak_ptr<Source> > SourceRemoved;
1789 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1791 void foreach_source (boost::function<void( boost::shared_ptr<Source> )> f) {
1792 Glib::Threads::Mutex::Lock ls (source_lock);
1793 for (SourceMap::iterator i = sources.begin(); i != sources.end(); ++i) {
1798 bool playlist_is_active( boost::shared_ptr<Playlist>);
1801 void reset_write_sources (bool mark_write_complete, bool force = false);
1804 int load_sources (const XMLNode& node);
1805 XMLNode& get_sources_as_xml ();
1807 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1811 void remove_playlist (boost::weak_ptr<Playlist>);
1812 void track_playlist_changed (boost::weak_ptr<Track>);
1813 void playlist_region_added (boost::weak_ptr<Region>);
1814 void playlist_ranges_moved (std::list<Evoral::RangeMove<samplepos_t> > const &);
1815 void playlist_regions_extended (std::list<Evoral::Range<samplepos_t> > const &);
1817 /* CURVES and AUTOMATION LISTS */
1818 std::map<PBD::ID, AutomationList*> automation_lists;
1820 /** load 2.X Sessions. Diskstream-ID to playlist-name mapping */
1821 std::map<PBD::ID, std::string> _diskstreams_2X;
1823 /* DEFAULT FADE CURVES */
1825 float default_fade_steepness;
1826 float default_fade_msecs;
1830 boost::shared_ptr<Auditioner> auditioner;
1831 void set_audition (boost::shared_ptr<Region>);
1832 void non_realtime_set_audition ();
1833 boost::shared_ptr<Region> pending_audition_region;
1839 int flatten_one_track (AudioTrack&, samplepos_t start, samplecnt_t cnt);
1841 /* INSERT AND SEND MANAGEMENT */
1843 boost::dynamic_bitset<uint32_t> send_bitset;
1844 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1845 boost::dynamic_bitset<uint32_t> return_bitset;
1846 boost::dynamic_bitset<uint32_t> insert_bitset;
1850 struct space_and_path {
1851 uint32_t blocks; ///< 4kB blocks
1852 bool blocks_unknown; ///< true if blocks is unknown
1857 , blocks_unknown (true)
1861 struct space_and_path_ascending_cmp {
1862 bool operator() (space_and_path a, space_and_path b) {
1863 if (a.blocks_unknown != b.blocks_unknown) {
1864 return !a.blocks_unknown;
1866 return a.blocks > b.blocks;
1870 void setup_raid_path (std::string path);
1872 std::vector<space_and_path> session_dirs;
1873 std::vector<space_and_path>::iterator last_rr_session_dir;
1874 uint32_t _total_free_4k_blocks;
1875 /** If this is true, _total_free_4k_blocks is not definite,
1876 as one or more of the session directories' filesystems
1877 could not report free space.
1879 bool _total_free_4k_blocks_uncertain;
1880 Glib::Threads::Mutex space_lock;
1882 bool no_questions_about_missing_files;
1884 std::string get_best_session_directory_for_new_audio ();
1886 mutable gint _playback_load;
1887 mutable gint _capture_load;
1891 SerializedRCUManager<BundleList> _bundles;
1892 XMLNode* _bundle_xml_node;
1893 int load_bundles (XMLNode const &);
1895 UndoHistory _history;
1896 /** current undo transaction, or 0 */
1897 UndoTransaction* _current_trans;
1898 /** GQuarks to describe the reversible commands that are currently in progress.
1899 * These may be nested, in which case more recently-started commands are toward
1900 * the front of the list.
1902 std::list<GQuark> _current_trans_quarks;
1904 int backend_sync_callback (TransportState, samplepos_t);
1906 void process_rtop (SessionEvent*);
1914 XMLNode& state (bool save_template,
1915 snapshot_t snapshot_type = NormalSave,
1916 bool only_used_assets = false);
1918 XMLNode& get_state ();
1919 int set_state (const XMLNode& node, int version); // not idempotent
1920 XMLNode& get_template ();
1923 typedef std::list<Click*> Clicks;
1926 bool _click_rec_only;
1927 boost::shared_ptr<IO> _click_io;
1928 boost::shared_ptr<Amp> _click_gain;
1930 Sample* click_emphasis_data;
1931 samplecnt_t click_length;
1932 samplecnt_t click_emphasis_length;
1933 mutable Glib::Threads::RWLock click_lock;
1935 static const Sample default_click[];
1936 static const samplecnt_t default_click_length;
1937 static const Sample default_click_emphasis[];
1938 static const samplecnt_t default_click_emphasis_length;
1941 samplepos_t _clicks_cleared;
1942 samplecnt_t _count_in_samples;
1943 void setup_click_sounds (int which);
1944 void setup_click_sounds (Sample**, Sample const *, samplecnt_t*, samplecnt_t, std::string const &);
1945 void clear_clicks ();
1946 void click (samplepos_t start, samplecnt_t nframes);
1947 void run_click (samplepos_t start, samplecnt_t nframes);
1948 void add_click (samplepos_t pos, bool emphasis);
1950 /* range playback */
1952 std::list<AudioRange> current_audio_range;
1954 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1955 void unset_play_range ();
1957 /* temporary hacks to allow selection to be pushed from GUI into backend
1958 Whenever we move the selection object into libardour, these will go away.
1960 Evoral::Range<samplepos_t> _range_selection;
1961 Evoral::Range<samplepos_t> _object_selection;
1963 void unset_preroll_record_trim ();
1965 samplecnt_t _preroll_record_trim_len;
1966 bool _count_in_once;
1971 boost::shared_ptr<Route> _master_out;
1972 boost::shared_ptr<Route> _monitor_out;
1974 void auto_connect_master_bus ();
1976 int find_all_sources (std::string path, std::set<std::string>& result);
1977 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1979 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1980 Glib::Threads::Mutex controllables_lock;
1981 Controllables controllables;
1983 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1985 void reset_native_file_format();
1986 bool first_file_data_format_reset;
1987 bool first_file_header_format_reset;
1989 void config_changed (std::string, bool);
1991 XMLNode& get_control_protocol_state ();
1993 void set_history_depth (uint32_t depth);
1995 static bool _disable_all_loaded_plugins;
1996 static bool _bypass_all_loaded_plugins;
1998 mutable bool have_looped; ///< Used in \ref audible_sample
2000 void update_route_record_state ();
2001 gint _have_rec_enabled_track;
2002 gint _have_rec_disabled_track;
2004 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
2006 /* realtime "apply to set of routes" operations */
2007 template<typename T> SessionEvent*
2008 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
2009 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
2010 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2011 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
2012 ev->rt_return = after;
2013 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2018 /* specialized version realtime "apply to set of routes" operations */
2019 template<typename T1, typename T2> SessionEvent*
2020 get_rt_event (boost::shared_ptr<RouteList> rl, T1 t1arg, T2 t2arg, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
2021 void (Session::*method) (boost::shared_ptr<RouteList>, T1, T2, PBD::Controllable::GroupControlDisposition)) {
2022 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2023 ev->rt_slot = boost::bind (method, this, rl, t1arg, t2arg, group_override);
2024 ev->rt_return = after;
2025 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2030 /* specialized version realtime "apply to set of controls" operations */
2031 SessionEvent* get_rt_event (boost::shared_ptr<ControlList> cl, double arg, PBD::Controllable::GroupControlDisposition group_override) {
2032 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2033 ev->rt_slot = boost::bind (&Session::rt_set_controls, this, cl, arg, group_override);
2034 ev->rt_return = Session::rt_cleanup;
2035 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2040 void rt_set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition group_override);
2041 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
2043 void set_session_range_location (samplepos_t, samplepos_t);
2045 void setup_midi_machine_control ();
2047 void step_edit_status_change (bool);
2048 uint32_t _step_editors;
2050 /** true if timecode transmission by the transport is suspended, otherwise false */
2051 mutable gint _suspend_timecode_transmission;
2053 void update_locations_after_tempo_map_change (const Locations::LocationList &);
2055 void start_time_changed (samplepos_t);
2056 void end_time_changed (samplepos_t);
2058 void set_track_monitor_input_status (bool);
2059 samplepos_t compute_stop_limit () const;
2061 boost::shared_ptr<Speakers> _speakers;
2062 void load_nested_sources (const XMLNode& node);
2064 /** The directed graph of routes that is currently being used for audio processing
2065 and solo/mute computations.
2067 GraphEdges _current_route_graph;
2069 void ensure_route_presentation_info_gap (PresentationInfo::order_t, uint32_t gap_size);
2071 friend class ProcessorChangeBlocker;
2072 gint _ignore_route_processor_changes; /* atomic */
2074 MidiClockTicker* midi_clock;
2076 boost::shared_ptr<IO> _ltc_output;
2078 boost::shared_ptr<RTTaskList> _rt_tasklist;
2080 /* Scene Changing */
2081 SceneChanger* _scene_changer;
2083 /* persistent, non-track related MIDI ports */
2084 MidiPortManager* _midi_ports;
2085 MIDI::MachineControl* _mmc;
2088 void setup_click ();
2089 void setup_click_state (const XMLNode*);
2090 void setup_bundles ();
2092 void save_as_bring_callback (uint32_t, uint32_t, std::string);
2094 static const uint32_t session_end_shift;
2096 std::string _template_state_dir;
2098 VCAManager* _vca_manager;
2100 boost::shared_ptr<Route> get_midi_nth_route_by_id (PresentationInfo::order_t n) const;
2102 std::string created_with;
2104 void midi_track_presentation_info_changed (PBD::PropertyChange const &, boost::weak_ptr<MidiTrack>);
2105 void rewire_selected_midi (boost::shared_ptr<MidiTrack>);
2106 void rewire_midi_selection_ports ();
2107 boost::weak_ptr<MidiTrack> current_midi_target;
2109 StripableList _soloSelection; //the items that are soloe'd during a solo-selection operation; need to unsolo after the roll
2111 CoreSelection* _selection;
2113 bool _global_locate_pending;
2114 boost::optional<samplepos_t> _nominal_jack_transport_sample;
2118 } // namespace ARDOUR
2120 #endif /* __ardour_session_h__ */