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"
51 #include "midi++/mmc.h"
53 #include "timecode/time.h"
55 #include "ardour/ardour.h"
56 #include "ardour/chan_count.h"
57 #include "ardour/delivery.h"
58 #include "ardour/interthread_info.h"
59 #include "ardour/rc_configuration.h"
60 #include "ardour/session_configuration.h"
61 #include "ardour/session_event.h"
62 #include "ardour/location.h"
63 #include "ardour/interpolation.h"
64 #include "ardour/route_graph.h"
70 typedef struct _AEffect AEffect;
80 class ControllableDescriptor;
91 class AudioFileSource;
109 class MidiClockTicker;
111 class MidiPortManager;
130 class SessionDirectory;
131 class SessionMetadata;
132 class SessionPlaylists;
138 class WindowsVSTPlugin;
140 extern void setup_enum_writer ();
142 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
151 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
152 the bus profile can be null if no master out bus is required.
155 Session (AudioEngine&,
156 const std::string& fullpath,
157 const std::string& snapshot_name,
158 BusProfile* bus_profile = 0,
159 std::string mix_template = "");
163 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format);
165 std::string path() const { return _path; }
166 std::string name() const { return _name; }
167 std::string snap_name() const { return _current_snapshot_name; }
168 std::string raid_path () const;
169 bool path_is_within_session (const std::string&);
171 void set_snap_name ();
173 bool writable() const { return _writable; }
176 bool dirty() const { return _state_of_the_state & Dirty; }
177 void set_deletion_in_progress ();
178 void clear_deletion_in_progress ();
179 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
180 PBD::Signal0<void> DirtyChanged;
182 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
184 static PBD::Signal1<void,std::string> Dialog;
186 int ensure_subdirs ();
188 std::string automation_dir () const; ///< Automation data
189 std::string analysis_dir () const; ///< Analysis data
190 std::string plugins_dir () const; ///< Plugin state
191 std::string externals_dir () const; ///< Links to external files
193 std::string peak_path (std::string) const;
195 std::string peak_path_from_audio_path (std::string) const;
196 bool audio_source_name_is_unique (const std::string& name);
197 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);
198 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
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 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
206 void process (pframes_t nframes);
208 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
209 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true );
210 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
211 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
213 bool have_rec_enabled_track () const;
215 bool have_captured() const { return _have_captured; }
217 void refill_all_track_buffers ();
218 Butler* butler() { return _butler; }
219 void butler_transport_work ();
221 void refresh_disk_space ();
223 int load_diskstreams_2X (XMLNode const &, int);
225 int load_routes (const XMLNode&, int);
226 boost::shared_ptr<RouteList> get_routes() const {
227 return routes.reader ();
230 boost::shared_ptr<RouteList> get_tracks() const;
231 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
232 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
234 uint32_t nroutes() const { return routes.reader()->size(); }
235 uint32_t ntracks () const;
236 uint32_t nbusses () const;
238 boost::shared_ptr<BundleList> bundles () {
239 return _bundles.reader ();
242 struct LIBARDOUR_API RoutePublicOrderSorter {
243 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
246 void set_order_hint (int32_t order_hint) {_order_hint = order_hint;};
247 void notify_remote_id_change ();
248 void sync_order_keys ();
250 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
251 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
252 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
254 static char session_name_is_legal (const std::string&);
255 bool io_name_is_legal (const std::string&);
256 boost::shared_ptr<Route> route_by_name (std::string);
257 boost::shared_ptr<Route> route_by_id (PBD::ID);
258 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
259 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID);
260 void routes_using_input_from (const std::string& str, RouteList& rl);
262 bool route_name_unique (std::string) const;
263 bool route_name_internal (std::string) const;
265 uint32_t track_number_decimals () const {
266 return _track_number_decimals;
269 bool get_record_enabled() const {
270 return (record_status () >= Enabled);
273 RecordState record_status() const {
274 return (RecordState) g_atomic_int_get (&_record_status);
277 bool actively_recording () const {
278 return record_status() == Recording;
281 bool record_enabling_legal () const;
282 void maybe_enable_record ();
283 void disable_record (bool rt_context, bool force = false);
284 void step_back_from_record ();
286 void maybe_write_autosave ();
288 /* Emitted when all i/o connections are complete */
290 PBD::Signal0<void> IOConnectionsComplete;
292 /* Record status signals */
294 PBD::Signal0<void> RecordStateChanged;
296 /* Transport mechanism signals */
298 /** Emitted on the following changes in transport state:
299 * - stop (from the butler thread)
300 * - change in whether or not we are looping (from the process thread)
301 * - change in the play range (from the process thread)
302 * - start (from the process thread)
305 PBD::Signal0<void> TransportStateChange;
307 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
308 PBD::Signal1<void,framepos_t> Xrun;
309 PBD::Signal0<void> TransportLooped;
311 /** emitted when a locate has occurred */
312 PBD::Signal0<void> Located;
314 PBD::Signal1<void,RouteList&> RouteAdded;
315 /** Emitted when a property of one of our route groups changes.
316 * The parameter is the RouteGroup that has changed.
318 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
319 /** Emitted when a route is added to one of our route groups.
320 * First parameter is the RouteGroup, second is the route.
322 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
323 /** Emitted when a route is removed from one of our route groups.
324 * First parameter is the RouteGroup, second is the route.
326 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
328 /* Step Editing status changed */
329 PBD::Signal1<void,bool> StepEditStatusChange;
331 void queue_event (SessionEvent*);
333 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
334 void request_bounded_roll (framepos_t start, framepos_t end);
335 void request_stop (bool abort = false, bool clear_state = false);
336 void request_locate (framepos_t frame, bool with_roll = false);
338 void request_play_loop (bool yn, bool leave_rolling = false);
339 bool get_play_loop () const { return play_loop; }
341 framepos_t last_transport_start () const { return _last_roll_location; }
344 void use_rf_shuttle_speed ();
345 void allow_auto_play (bool yn);
346 void request_transport_speed (double speed, bool as_default = false);
347 void request_transport_speed_nonzero (double, bool as_default = false);
348 void request_overwrite_buffer (Track *);
349 void adjust_playback_buffering();
350 void adjust_capture_buffering();
351 void request_track_speed (Track *, double speed);
352 void request_input_change_handling ();
354 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
355 bool transport_locked () const;
359 framepos_t current_end_frame () const;
360 framepos_t current_start_frame () const;
361 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
362 framecnt_t frame_rate () const { return _current_frame_rate; }
363 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
364 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
365 framecnt_t frames_per_hour () const { return _frames_per_hour; }
367 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
368 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
370 MIDI::byte get_mtc_timecode_bits() const {
371 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
374 double timecode_frames_per_second() const;
375 bool timecode_drop_frames() const;
379 Locations *locations() { return _locations; }
381 PBD::Signal1<void,Location*> auto_loop_location_changed;
382 PBD::Signal1<void,Location*> auto_punch_location_changed;
383 PBD::Signal0<void> locations_modified;
385 void set_auto_punch_location (Location *);
386 void set_auto_loop_location (Location *);
387 void set_session_extents (framepos_t start, framepos_t end);
388 int location_name(std::string& result, std::string base = std::string(""));
390 pframes_t get_block_size() const { return current_block_size; }
391 framecnt_t worst_output_latency () const { return _worst_output_latency; }
392 framecnt_t worst_input_latency () const { return _worst_input_latency; }
393 framecnt_t worst_track_latency () const { return _worst_track_latency; }
394 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
396 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false);
397 int restore_state (std::string snapshot_name);
398 int save_template (std::string template_name);
399 int save_history (std::string snapshot_name = "");
400 int restore_history (std::string snapshot_name);
401 void remove_state (std::string snapshot_name);
402 void rename_state (std::string old_name, std::string new_name);
403 void remove_pending_capture_state ();
404 int rename (const std::string&);
405 bool get_nsm_state () const { return _under_nsm_control; }
406 void set_nsm_state (bool state) { _under_nsm_control = state; }
407 bool save_default_options ();
409 PBD::Signal1<void,std::string> StateSaved;
410 PBD::Signal0<void> StateReady;
412 /* emitted when session needs to be saved due to some internal
413 * event or condition (i.e. not in response to a user request).
415 * Only one object should
416 * connect to this signal and take responsibility.
418 * Argument is the snapshot name to use when saving.
420 PBD::Signal1<void,std::string> SaveSessionRequested;
422 /* emitted during a session save to allow other entities to add state, via
423 * extra XML, to the session state
425 PBD::Signal0<void> SessionSaveUnderway;
427 std::vector<std::string> possible_states() const;
428 static std::vector<std::string> possible_states (std::string path);
430 XMLNode& get_state();
431 int set_state(const XMLNode& node, int version); // not idempotent
432 XMLNode& get_template();
434 /// The instant xml file is written to the session directory
435 void add_instant_xml (XMLNode&, bool write_to_config = true);
436 XMLNode* instant_xml (const std::string& str);
438 enum StateOfTheState {
443 InitialConnecting = 0x8,
448 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
450 class StateProtector {
452 StateProtector (Session* s) : _session (s) {
453 g_atomic_int_inc (&s->_suspend_save);
456 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
457 while (_session->_save_queued) {
458 _session->_save_queued = false;
459 _session->save_state ("");
467 void add_route_group (RouteGroup *);
468 void remove_route_group (RouteGroup&);
469 void reorder_route_groups (std::list<RouteGroup*>);
471 RouteGroup* route_group_by_name (std::string);
472 RouteGroup& all_route_group() const;
474 PBD::Signal1<void,RouteGroup*> route_group_added;
475 PBD::Signal0<void> route_group_removed;
476 PBD::Signal0<void> route_groups_reordered;
478 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
479 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
484 std::list<RouteGroup*> const & route_groups () const {
485 return _route_groups;
488 /* fundamental operations. duh. */
490 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
493 TrackMode mode = Normal,
494 RouteGroup* route_group = 0,
495 uint32_t how_many = 1,
496 std::string name_template = ""
499 RouteList new_audio_route (
500 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
503 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
504 const ChanCount& input, const ChanCount& output,
505 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
506 TrackMode mode = Normal,
507 RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
510 void remove_route (boost::shared_ptr<Route>);
511 void resort_routes ();
512 void resort_routes_using (boost::shared_ptr<RouteList>);
514 AudioEngine & engine() { return _engine; }
515 AudioEngine const & engine () const { return _engine; }
519 framepos_t transport_frame () const {return _transport_frame; }
520 framepos_t record_location () const {return _last_record_location; }
521 framepos_t audible_frame () const;
522 framepos_t requested_return_frame() const { return _requested_return_frame; }
523 void set_requested_return_frame(framepos_t return_to);
537 void sync_time_vars();
539 void bbt_time (framepos_t when, Timecode::BBT_Time&);
540 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
541 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
542 void timecode_time (Timecode::Time &);
543 void timecode_time (framepos_t when, Timecode::Time&);
544 void timecode_time_subframes (framepos_t when, Timecode::Time&);
546 void timecode_duration (framecnt_t, Timecode::Time&) const;
547 void timecode_duration_string (char *, size_t len, framecnt_t) const;
549 framecnt_t convert_to_frames (AnyTime const & position);
550 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
552 static PBD::Signal1<void, framepos_t> StartTimeChanged;
553 static PBD::Signal1<void, framepos_t> EndTimeChanged;
555 void request_sync_source (Slave*);
556 bool synced_to_engine() const { return config.get_external_sync() && Config->get_sync_source() == Engine; }
558 double transport_speed() const { return _transport_speed; }
559 bool transport_stopped() const { return _transport_speed == 0.0f; }
560 bool transport_rolling() const { return _transport_speed != 0.0f; }
562 void set_silent (bool yn);
563 bool silent () { return _silent; }
565 TempoMap& tempo_map() { return *_tempo_map; }
566 const TempoMap& tempo_map() const { return *_tempo_map; }
570 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
572 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
573 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
574 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
576 /* source management */
578 void import_files (ImportStatus&);
579 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
580 std::string build_tmp_convert_name (std::string file);
582 boost::shared_ptr<ExportHandler> get_export_handler ();
583 boost::shared_ptr<ExportStatus> get_export_status ();
585 int start_audio_export (framepos_t position);
587 PBD::Signal1<int, framecnt_t> ProcessExport;
588 static PBD::Signal2<void,std::string, std::string> Exported;
590 void add_source (boost::shared_ptr<Source>);
591 void remove_source (boost::weak_ptr<Source>);
593 void cleanup_regions();
594 int cleanup_sources (CleanupReport&);
595 int cleanup_trash_sources (CleanupReport&);
597 int destroy_sources (std::list<boost::shared_ptr<Source> >);
599 int remove_last_capture ();
601 /** handlers should return 0 for "everything OK", and any other value for
602 * "cannot setup audioengine".
604 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
606 /** handlers should return -1 for "stop cleanup",
607 0 for "yes, delete this playlist",
608 1 for "no, don't delete this playlist".
610 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
612 /** handlers should return 0 for "ignore the rate mismatch",
613 !0 for "do not use this session"
615 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
617 /** handlers should return !0 for use pending state, 0 for ignore it.
619 static PBD::Signal0<int> AskAboutPendingState;
621 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
622 size_t, std::string const &, uint32_t, bool destructive);
624 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
625 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
627 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
628 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
629 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
630 uint32_t count_sources_by_origin (const std::string&);
632 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
634 /* Curves and AutomationLists (TODO when they go away) */
635 void add_automation_list(AutomationList*);
639 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
640 void audition_playlist ();
641 void audition_region (boost::shared_ptr<Region>);
642 void cancel_audition ();
643 bool is_auditioning () const;
645 PBD::Signal1<void,bool> AuditionActive;
647 /* flattening stuff */
649 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
650 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
651 boost::shared_ptr<Processor> endpoint,
652 bool include_endpoint, bool for_export, bool for_freeze);
653 int freeze_all (InterThreadInfo&);
655 /* session-wide solo/mute/rec-enable */
657 bool soloing() const { return _non_soloed_outs_muted; }
658 bool listening() const { return _listen_cnt > 0; }
659 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
661 static const SessionEvent::RTeventCallback rt_cleanup;
663 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
664 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
665 void cancel_solo_after_disconnect (boost::shared_ptr<Route>, bool upstream, SessionEvent::RTeventCallback after = rt_cleanup);
666 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
667 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
668 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
669 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
670 void set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
671 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others=false);
673 PBD::Signal1<void,bool> SoloActive;
674 PBD::Signal0<void> SoloChanged;
675 PBD::Signal0<void> IsolatedChanged;
677 /* monitor/master out */
679 void add_monitor_section ();
680 void remove_monitor_section ();
682 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
683 boost::shared_ptr<Route> master_out() const { return _master_out; }
685 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
686 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
687 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
688 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
689 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
690 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
691 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
693 static void set_disable_all_loaded_plugins (bool yn) {
694 _disable_all_loaded_plugins = yn;
696 static bool get_disable_all_loaded_plugins() {
697 return _disable_all_loaded_plugins;
700 uint32_t next_send_id();
701 uint32_t next_aux_send_id();
702 uint32_t next_return_id();
703 uint32_t next_insert_id();
704 void mark_send_id (uint32_t);
705 void mark_aux_send_id (uint32_t);
706 void mark_return_id (uint32_t);
707 void mark_insert_id (uint32_t);
708 void unmark_send_id (uint32_t);
709 void unmark_aux_send_id (uint32_t);
710 void unmark_return_id (uint32_t);
711 void unmark_insert_id (uint32_t);
713 /* s/w "RAID" management */
715 boost::optional<framecnt_t> available_capture_duration();
719 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
720 void remove_bundle (boost::shared_ptr<Bundle>);
721 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
723 PBD::Signal0<void> BundleAddedOrRemoved;
727 /* History (for editors, mixers, UIs etc.) */
729 /** Undo some transactions.
730 * @param n Number of transactions to undo.
732 void undo (uint32_t n) {
736 void redo (uint32_t n) {
740 UndoHistory& history() { return _history; }
742 uint32_t undo_depth() const { return _history.undo_depth(); }
743 uint32_t redo_depth() const { return _history.redo_depth(); }
744 std::string next_undo() const { return _history.next_undo(); }
745 std::string next_redo() const { return _history.next_redo(); }
747 void begin_reversible_command (const std::string& cmd_name);
748 void begin_reversible_command (GQuark);
749 void abort_reversible_command ();
750 void commit_reversible_command (Command* cmd = 0);
752 void add_command (Command *const cmd) {
753 assert (_current_trans);
754 _current_trans->add_command (cmd);
757 /** @return The list of operations that are currently in progress */
758 std::list<GQuark> const & current_operations () {
759 return _current_trans_quarks;
762 bool operation_in_progress (GQuark) const;
764 void add_commands (std::vector<Command*> const & cmds);
766 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
768 // these commands are implemented in libs/ardour/session_command.cc
769 Command* memento_command_factory(XMLNode* n);
770 Command* stateful_diff_command_factory (XMLNode *);
771 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
775 boost::shared_ptr<IO> click_io() { return _click_io; }
776 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
778 /* disk, buffer loads */
780 uint32_t playback_load ();
781 uint32_t capture_load ();
785 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
786 void request_cancel_play_range ();
787 bool get_play_range () const { return _play_range; }
789 void maybe_update_session_range (framepos_t, framepos_t);
791 /* buffers for gain and pan */
793 gain_t* gain_automation_buffer () const;
794 gain_t* send_gain_automation_buffer () const;
795 pan_t** pan_automation_buffer () const;
797 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
801 static int vst_current_loading_id;
802 static const char* vst_can_do_strings[];
803 static const int vst_can_do_string_count;
805 static intptr_t vst_callback (
814 static PBD::Signal0<void> SendFeedback;
818 boost::shared_ptr<Speakers> get_speakers ();
822 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
823 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
825 void add_controllable (boost::shared_ptr<PBD::Controllable>);
826 void remove_controllable (PBD::Controllable*);
828 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
830 SessionConfiguration config;
832 bool exporting () const {
836 bool bounce_processing() const {
837 return _bounce_processing_active;
840 /* this is a private enum, but setup_enum_writer() needs it,
841 and i can't find a way to give that function
845 enum PostTransportWork {
846 PostTransportStop = 0x1,
847 PostTransportDuration = 0x2,
848 PostTransportLocate = 0x4,
849 PostTransportRoll = 0x8,
850 PostTransportAbort = 0x10,
851 PostTransportOverWrite = 0x20,
852 PostTransportSpeed = 0x40,
853 PostTransportAudition = 0x80,
854 PostTransportReverse = 0x100,
855 PostTransportInputChange = 0x200,
856 PostTransportCurveRealloc = 0x400,
857 PostTransportClearSubstate = 0x800,
858 PostTransportAdjustPlaybackBuffering = 0x1000,
859 PostTransportAdjustCaptureBuffering = 0x2000
868 SlaveState slave_state() const { return _slave_state; }
869 Slave* slave() const { return _slave; }
871 boost::shared_ptr<SessionPlaylists> playlists;
873 void send_mmc_locate (framepos_t);
874 void queue_full_time_code () { _send_timecode_update = true; }
875 void queue_song_position_pointer () { /* currently does nothing */ }
877 bool step_editing() const { return (_step_editors > 0); }
879 void request_suspend_timecode_transmission ();
880 void request_resume_timecode_transmission ();
881 bool timecode_transmission_suspended () const;
883 std::vector<std::string> source_search_path(DataType) const;
884 void ensure_search_path_includes (const std::string& path, DataType type);
885 void remove_dir_from_search_path (const std::string& path, DataType type);
887 std::list<std::string> unknown_processors () const;
889 /** Emitted when a feedback cycle has been detected within Ardour's signal
890 processing path. Until it is fixed (by the user) some (unspecified)
891 routes will not be run.
893 static PBD::Signal0<void> FeedbackDetected;
895 /** Emitted when a graph sort has successfully completed, which means
896 that it has no feedback cycles.
898 static PBD::Signal0<void> SuccessfulGraphSort;
900 /* handlers can return an integer value:
901 0: config.set_audio_search_path() or config.set_midi_search_path() was used
902 to modify the search path and we should try to find it again.
903 1: quit entire session load
904 2: as 0, but don't ask about other missing files
905 3: don't ask about other missing files, and just mark this one missing
906 -1: just mark this one missing
907 any other value: as -1
909 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
911 /** Emitted when the session wants Ardour to quit */
912 static PBD::Signal0<void> Quit;
914 /** Emitted when Ardour is asked to load a session in an older session
915 * format, and makes a backup copy.
917 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
919 SceneChanger* scene_changer() const { return _scene_changer; }
921 boost::shared_ptr<Port> ltc_input_port() const;
922 boost::shared_ptr<Port> ltc_output_port() const;
924 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
925 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
927 MIDI::Port* midi_input_port () const;
928 MIDI::Port* midi_output_port () const;
929 MIDI::Port* mmc_output_port () const;
930 MIDI::Port* mmc_input_port () const;
932 MIDI::Port* scene_input_port () const;
933 MIDI::Port* scene_output_port () const;
935 boost::shared_ptr<MidiPort> scene_in () const;
936 boost::shared_ptr<MidiPort> scene_out () const;
938 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
939 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
940 boost::shared_ptr<MidiPort> mtc_output_port () const;
941 boost::shared_ptr<MidiPort> mtc_input_port () const;
943 MIDI::MachineControl& mmc() { return *_mmc; }
946 friend class AudioEngine;
947 void set_block_size (pframes_t nframes);
948 void set_frame_rate (framecnt_t nframes);
949 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
953 void schedule_curve_reallocation ();
954 void update_latency_compensation (bool force = false);
957 int create (const std::string& mix_template, BusProfile*);
961 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
962 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
963 StopPendingCapture = 0x4,
964 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
965 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
966 PendingLocate = 0x20,
969 /* stuff used in process() should be close together to
973 typedef void (Session::*process_function_type)(pframes_t);
975 AudioEngine& _engine;
976 mutable gint processing_prohibited;
977 process_function_type process_function;
978 process_function_type last_process_function;
979 bool _bounce_processing_active;
980 bool waiting_for_sync_offset;
981 framecnt_t _base_frame_rate;
982 framecnt_t _current_frame_rate; //this includes video pullup offset
983 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
984 int transport_sub_state;
985 mutable gint _record_status;
986 framepos_t _transport_frame;
987 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
991 // varispeed playback
992 double _transport_speed;
993 double _default_transport_speed;
994 double _last_transport_speed;
995 double _signalled_varispeed;
996 double _target_transport_speed;
997 CubicInterpolation interpolation;
999 bool auto_play_legal;
1000 framepos_t _last_slave_transport_frame;
1001 framecnt_t maximum_output_latency;
1002 framepos_t _requested_return_frame;
1003 pframes_t current_block_size;
1004 framecnt_t _worst_output_latency;
1005 framecnt_t _worst_input_latency;
1006 framecnt_t _worst_track_latency;
1007 bool _have_captured;
1008 bool _non_soloed_outs_muted;
1009 uint32_t _listen_cnt;
1010 uint32_t _solo_isolated_cnt;
1013 bool _under_nsm_control;
1015 void initialize_latencies ();
1016 void set_worst_io_latencies ();
1017 void set_worst_playback_latency ();
1018 void set_worst_capture_latency ();
1019 void set_worst_io_latencies_x (IOChange, void *) {
1020 set_worst_io_latencies ();
1022 void post_capture_latency ();
1023 void post_playback_latency ();
1025 void update_latency_compensation_proxy (void* ignored);
1027 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1029 void process_scrub (pframes_t);
1030 void process_without_events (pframes_t);
1031 void process_with_events (pframes_t);
1032 void process_audition (pframes_t);
1033 int process_export (pframes_t);
1034 int process_export_fw (pframes_t);
1036 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1037 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1038 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1040 static const framecnt_t bounce_chunk_size;
1042 /* slave tracking */
1044 static const int delta_accumulator_size = 25;
1045 int delta_accumulator_cnt;
1046 int32_t delta_accumulator[delta_accumulator_size];
1047 int32_t average_slave_delta;
1049 bool have_first_delta_accumulator;
1051 SlaveState _slave_state;
1052 framepos_t slave_wait_end;
1054 void reset_slave_state ();
1055 bool follow_slave (pframes_t);
1056 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1057 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1058 void follow_slave_silently (pframes_t nframes, float slave_speed);
1060 void switch_to_sync_source (SyncSource); /* !RT context */
1061 void drop_sync_source (); /* !RT context */
1062 void use_sync_source (Slave*); /* RT context */
1064 bool post_export_sync;
1065 framepos_t post_export_position;
1068 bool _export_started;
1069 bool _export_rolling;
1071 boost::shared_ptr<ExportHandler> export_handler;
1072 boost::shared_ptr<ExportStatus> export_status;
1075 int stop_audio_export ();
1076 void finalize_audio_export ();
1077 void finalize_export_internal (bool stop_freewheel);
1078 bool _pre_export_mmc_enabled;
1080 PBD::ScopedConnection export_freewheel_connection;
1082 void get_track_statistics ();
1083 int process_routes (pframes_t, bool& need_butler);
1084 int silent_process_routes (pframes_t, bool& need_butler);
1086 /** @return 1 if there is a pending declick fade-in,
1087 -1 if there is a pending declick fade-out,
1088 0 if there is no pending declick.
1090 int get_transport_declick_required () {
1091 if (transport_sub_state & PendingDeclickIn) {
1092 transport_sub_state &= ~PendingDeclickIn;
1094 } else if (transport_sub_state & PendingDeclickOut) {
1095 /* XXX: not entirely sure why we don't clear this */
1097 } else if (transport_sub_state & PendingLoopDeclickOut) {
1098 /* Return the declick out first ... */
1099 transport_sub_state &= ~PendingLoopDeclickOut;
1101 } else if (transport_sub_state & PendingLoopDeclickIn) {
1102 /* ... then the declick in on the next call */
1103 transport_sub_state &= ~PendingLoopDeclickIn;
1110 bool maybe_stop (framepos_t limit);
1111 bool maybe_sync_start (pframes_t &);
1113 void check_declick_out ();
1119 /** Number of process frames since the last MTC output (when sending MTC); used to
1120 * know when to send full MTC messages every so often.
1122 pframes_t _pframes_since_last_mtc;
1123 bool session_midi_feedback;
1126 framepos_t last_loopend;
1128 boost::scoped_ptr<SessionDirectory> _session_dir;
1131 void graph_reordered ();
1133 /** current snapshot name, without the .ardour suffix */
1134 std::string _current_snapshot_name;
1136 XMLTree* state_tree;
1137 bool state_was_pending;
1138 StateOfTheState _state_of_the_state;
1140 friend class StateProtector;
1141 gint _suspend_save; /* atomic */
1142 volatile bool _save_queued;
1143 Glib::Threads::Mutex save_state_lock;
1145 int load_options (const XMLNode&);
1146 int load_state (std::string snapshot_name);
1148 framepos_t _last_roll_location;
1149 /** the session frame time at which we last rolled, located, or changed transport direction */
1150 framepos_t _last_roll_or_reversal_location;
1151 framepos_t _last_record_location;
1153 bool pending_locate_roll;
1154 framepos_t pending_locate_frame;
1155 bool pending_locate_flush;
1157 bool pending_auto_loop;
1161 static const PostTransportWork ProcessCannotProceedMask =
1163 PostTransportInputChange|
1165 PostTransportReverse|
1166 PostTransportCurveRealloc|
1167 PostTransportAudition|
1168 PostTransportLocate|
1170 PostTransportClearSubstate);
1172 gint _post_transport_work; /* accessed only atomic ops */
1173 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1174 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1175 void add_post_transport_work (PostTransportWork ptw);
1177 void schedule_playback_buffering_adjustment ();
1178 void schedule_capture_buffering_adjustment ();
1180 uint32_t cumulative_rf_motion;
1183 void set_rf_speed (float speed);
1184 void reset_rf_scale (framecnt_t frames_moved);
1186 Locations* _locations;
1187 void location_added (Location*);
1188 void location_removed (Location*);
1189 void locations_changed ();
1190 void _locations_changed (const Locations::LocationList&);
1192 void update_skips (Location*, bool consolidate);
1193 void update_marks (Location* loc);
1194 void update_loop (Location* loc);
1195 void consolidate_skips (Location*);
1196 void sync_locations_to_skips ();
1197 void _sync_locations_to_skips ();
1199 PBD::ScopedConnectionList skip_update_connections;
1200 bool _ignore_skips_updates;
1202 PBD::ScopedConnectionList punch_connections;
1203 void auto_punch_start_changed (Location *);
1204 void auto_punch_end_changed (Location *);
1205 void auto_punch_changed (Location *);
1207 PBD::ScopedConnectionList loop_connections;
1208 void auto_loop_changed (Location *);
1209 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1211 int ensure_engine (uint32_t desired_sample_rate);
1212 void pre_engine_init (std::string path);
1213 int post_engine_init ();
1214 int immediately_post_engine ();
1215 void remove_empty_sounds ();
1217 void setup_midi_control ();
1218 int midi_read (MIDI::Port *);
1220 void enable_record ();
1222 void increment_transport_position (framecnt_t val) {
1223 if (max_framepos - val < _transport_frame) {
1224 _transport_frame = max_framepos;
1226 _transport_frame += val;
1230 void decrement_transport_position (framecnt_t val) {
1231 if (val < _transport_frame) {
1232 _transport_frame -= val;
1234 _transport_frame = 0;
1238 void post_transport_motion ();
1239 static void *session_loader_thread (void *arg);
1243 /* SessionEventManager interface */
1245 void process_event (SessionEvent*);
1246 void set_next_event ();
1247 void cleanup_event (SessionEvent*,int);
1249 /* MIDI Machine Control */
1252 void spp_continue ();
1255 void mmc_deferred_play (MIDI::MachineControl &);
1256 void mmc_stop (MIDI::MachineControl &);
1257 void mmc_step (MIDI::MachineControl &, int);
1258 void mmc_pause (MIDI::MachineControl &);
1259 void mmc_record_pause (MIDI::MachineControl &);
1260 void mmc_record_strobe (MIDI::MachineControl &);
1261 void mmc_record_exit (MIDI::MachineControl &);
1262 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1263 void mmc_fast_forward (MIDI::MachineControl &);
1264 void mmc_rewind (MIDI::MachineControl &);
1265 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1266 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1267 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1269 struct timeval last_mmc_step;
1272 typedef boost::function<bool()> MidiTimeoutCallback;
1273 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1275 MidiTimeoutList midi_timeouts;
1276 bool mmc_step_timeout ();
1277 void send_immediate_mmc (MIDI::MachineControlCommand);
1279 MIDI::byte mtc_msg[16];
1280 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1281 MIDI::byte midi_msg[16];
1282 double outbound_mtc_timecode_frame;
1283 Timecode::Time transmitting_timecode_time;
1284 int next_quarter_frame_to_send;
1286 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1287 framecnt_t _frames_per_hour;
1288 framecnt_t _timecode_frames_per_hour;
1290 /* cache the most-recently requested time conversions. This helps when we
1291 * have multiple clocks showing the same time (e.g. the transport frame) */
1292 bool last_timecode_valid;
1293 framepos_t last_timecode_when;
1294 Timecode::Time last_timecode;
1296 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1298 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1300 LTCEncoder* ltc_encoder;
1301 ltcsnd_sample_t* ltc_enc_buf;
1303 Timecode::TimecodeFormat ltc_enc_tcformat;
1304 int32_t ltc_buf_off;
1305 int32_t ltc_buf_len;
1308 int32_t ltc_enc_byte;
1309 framepos_t ltc_enc_pos;
1311 framepos_t ltc_enc_off;
1313 framepos_t ltc_prev_cycle;
1315 framepos_t ltc_timecode_offset;
1316 bool ltc_timecode_negative_offset;
1318 LatencyRange ltc_out_latency;
1320 void ltc_tx_initialize();
1321 void ltc_tx_cleanup();
1322 void ltc_tx_reset();
1323 void ltc_tx_resync_latency();
1324 void ltc_tx_recalculate_position();
1325 void ltc_tx_parse_offset();
1326 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1328 void reset_record_status ();
1330 int no_roll (pframes_t nframes);
1331 int fail_roll (pframes_t nframes);
1333 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1334 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1336 MidiControlUI* midi_control_ui;
1338 int start_midi_thread ();
1340 void set_play_loop (bool yn, double speed);
1341 void unset_play_loop ();
1342 void overwrite_some_buffers (Track *);
1343 void flush_all_inserts ();
1344 int micro_locate (framecnt_t distance);
1345 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1346 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1347 void force_locate (framepos_t frame, bool with_roll = false);
1348 void set_track_speed (Track *, double speed);
1349 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1350 void stop_transport (bool abort = false, bool clear_state = false);
1351 void start_transport ();
1352 void realtime_stop (bool abort, bool clear_state);
1353 void realtime_locate ();
1354 void non_realtime_start_scrub ();
1355 void non_realtime_set_speed ();
1356 void non_realtime_locate ();
1357 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1358 void non_realtime_overwrite (int entry_request_count, bool& finished);
1359 void post_transport ();
1360 void engine_halted ();
1361 void xrun_recovery ();
1362 void set_track_loop (bool);
1364 /* These are synchronous and so can only be called from within the process
1368 int send_full_time_code (framepos_t, pframes_t nframes);
1369 void send_song_position_pointer (framepos_t);
1371 TempoMap *_tempo_map;
1372 void tempo_map_changed (const PBD::PropertyChange&);
1374 /* edit/mix groups */
1376 int load_route_groups (const XMLNode&, int);
1378 std::list<RouteGroup *> _route_groups;
1379 RouteGroup* _all_route_group;
1383 boost::shared_ptr<Graph> _process_graph;
1385 SerializedRCUManager<RouteList> routes;
1387 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save);
1388 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect);
1389 bool _adding_routes_in_progress;
1390 uint32_t destructive_index;
1392 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1393 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1395 void route_processors_changed (RouteProcessorChange);
1397 bool find_route_name (std::string const &, uint32_t& id, char* name, size_t name_len, bool);
1398 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1399 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1400 bool with_lock, bool connect_inputs = true,
1401 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1402 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1404 /* track numbering */
1406 void reassign_track_numbers ();
1407 uint32_t _track_number_decimals;
1411 bool solo_update_disabled;
1413 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1414 void route_mute_changed (void *src);
1415 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1416 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1417 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1419 void listen_position_changed ();
1420 void solo_control_mode_changed ();
1422 /* REGION MANAGEMENT */
1424 mutable Glib::Threads::Mutex region_lock;
1426 int load_regions (const XMLNode& node);
1427 int load_compounds (const XMLNode& node);
1429 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1430 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1431 void route_group_property_changed (RouteGroup *);
1435 mutable Glib::Threads::Mutex source_lock;
1438 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1444 int load_sources (const XMLNode& node);
1445 XMLNode& get_sources_as_xml ();
1447 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1451 void remove_playlist (boost::weak_ptr<Playlist>);
1452 void track_playlist_changed (boost::weak_ptr<Track>);
1453 void playlist_region_added (boost::weak_ptr<Region>);
1454 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1455 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1457 /* CURVES and AUTOMATION LISTS */
1458 std::map<PBD::ID, AutomationList*> automation_lists;
1460 /* DEFAULT FADE CURVES */
1462 float default_fade_steepness;
1463 float default_fade_msecs;
1467 boost::shared_ptr<Auditioner> auditioner;
1468 void set_audition (boost::shared_ptr<Region>);
1469 void non_realtime_set_audition ();
1470 boost::shared_ptr<Region> pending_audition_region;
1476 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1478 /* INSERT AND SEND MANAGEMENT */
1480 boost::dynamic_bitset<uint32_t> send_bitset;
1481 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1482 boost::dynamic_bitset<uint32_t> return_bitset;
1483 boost::dynamic_bitset<uint32_t> insert_bitset;
1487 struct space_and_path {
1488 uint32_t blocks; ///< 4kB blocks
1489 bool blocks_unknown; ///< true if blocks is unknown
1494 , blocks_unknown (true)
1498 struct space_and_path_ascending_cmp {
1499 bool operator() (space_and_path a, space_and_path b) {
1500 if (a.blocks_unknown != b.blocks_unknown) {
1501 return !a.blocks_unknown;
1503 return a.blocks > b.blocks;
1507 void setup_raid_path (std::string path);
1509 std::vector<space_and_path> session_dirs;
1510 std::vector<space_and_path>::iterator last_rr_session_dir;
1511 uint32_t _total_free_4k_blocks;
1512 /** If this is true, _total_free_4k_blocks is not definite,
1513 as one or more of the session directories' filesystems
1514 could not report free space.
1516 bool _total_free_4k_blocks_uncertain;
1517 Glib::Threads::Mutex space_lock;
1519 bool no_questions_about_missing_files;
1521 std::string get_best_session_directory_for_new_audio ();
1523 mutable gint _playback_load;
1524 mutable gint _capture_load;
1528 SerializedRCUManager<BundleList> _bundles;
1529 XMLNode* _bundle_xml_node;
1530 int load_bundles (XMLNode const &);
1532 UndoHistory _history;
1533 /** current undo transaction, or 0 */
1534 UndoTransaction* _current_trans;
1535 /** GQuarks to describe the reversible commands that are currently in progress.
1536 * These may be nested, in which case more recently-started commands are toward
1537 * the front of the list.
1539 std::list<GQuark> _current_trans_quarks;
1541 int backend_sync_callback (TransportState, framepos_t);
1543 void process_rtop (SessionEvent*);
1545 void update_latency (bool playback);
1547 XMLNode& state(bool);
1550 typedef std::list<Click*> Clicks;
1553 boost::shared_ptr<IO> _click_io;
1554 boost::shared_ptr<Amp> _click_gain;
1556 Sample* click_emphasis_data;
1557 framecnt_t click_length;
1558 framecnt_t click_emphasis_length;
1559 mutable Glib::Threads::RWLock click_lock;
1561 static const Sample default_click[];
1562 static const framecnt_t default_click_length;
1563 static const Sample default_click_emphasis[];
1564 static const framecnt_t default_click_emphasis_length;
1567 framepos_t _clicks_cleared;
1568 void setup_click_sounds (int which);
1569 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1570 void clear_clicks ();
1571 void click (framepos_t start, framecnt_t nframes);
1573 std::vector<Route*> master_outs;
1575 /* range playback */
1577 std::list<AudioRange> current_audio_range;
1579 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1580 void unset_play_range ();
1585 boost::shared_ptr<Route> _master_out;
1586 boost::shared_ptr<Route> _monitor_out;
1588 void auto_connect_master_bus ();
1590 /* Windows VST support */
1592 long _windows_vst_callback (
1601 int find_all_sources (std::string path, std::set<std::string>& result);
1602 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1604 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1605 Glib::Threads::Mutex controllables_lock;
1606 Controllables controllables;
1608 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1610 void reset_native_file_format();
1611 bool first_file_data_format_reset;
1612 bool first_file_header_format_reset;
1614 void config_changed (std::string, bool);
1616 XMLNode& get_control_protocol_state ();
1618 void set_history_depth (uint32_t depth);
1620 static bool _disable_all_loaded_plugins;
1622 mutable bool have_looped; ///< Used in ::audible_frame(*)
1624 void update_have_rec_enabled_track ();
1625 gint _have_rec_enabled_track;
1627 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1629 /* realtime "apply to set of routes" operations */
1630 template<typename T> SessionEvent*
1631 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, bool group_override,
1632 void (Session::*method) (boost::shared_ptr<RouteList>, T, bool)) {
1633 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1634 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1635 ev->rt_return = after;
1636 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1641 void rt_cancel_solo_after_disconnect (boost::shared_ptr<RouteList>, bool upstream, bool /* ignored*/ );
1642 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1643 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1644 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1645 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1646 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1647 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1648 void rt_set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, bool group_override);
1650 /** temporary list of Diskstreams used only during load of 2.X sessions */
1651 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1653 void add_session_range_location (framepos_t, framepos_t);
1655 void setup_midi_machine_control ();
1657 void step_edit_status_change (bool);
1658 uint32_t _step_editors;
1660 /** true if timecode transmission by the transport is suspended, otherwise false */
1661 mutable gint _suspend_timecode_transmission;
1663 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1665 void start_time_changed (framepos_t);
1666 void end_time_changed (framepos_t);
1668 void set_track_monitor_input_status (bool);
1669 framepos_t compute_stop_limit () const;
1671 boost::shared_ptr<Speakers> _speakers;
1672 void load_nested_sources (const XMLNode& node);
1674 /** The directed graph of routes that is currently being used for audio processing
1675 and solo/mute computations.
1677 GraphEdges _current_route_graph;
1679 uint32_t next_control_id () const;
1680 int32_t _order_hint;
1681 bool ignore_route_processor_changes;
1683 MidiClockTicker* midi_clock;
1685 boost::shared_ptr<IO> _ltc_input;
1686 boost::shared_ptr<IO> _ltc_output;
1688 void reconnect_ltc_input ();
1689 void reconnect_ltc_output ();
1691 /* Scene Changing */
1692 SceneChanger* _scene_changer;
1694 /* persistent, non-track related MIDI ports */
1695 MidiPortManager* _midi_ports;
1696 MIDI::MachineControl* _mmc;
1699 void setup_click ();
1700 void setup_click_state (const XMLNode*);
1701 void setup_bundles ();
1703 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
1707 } // namespace ARDOUR
1709 #endif /* __ardour_session_h__ */