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; }
397 std::string new_parent_folder; /* parent folder where new session folder will be created */
398 std::string new_name; /* name of newly saved session */
399 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
400 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
401 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
403 /* emitted as we make progress. 3 arguments passed to signal
406 * 1: percentage complete measured as a fraction (0-1.0) of
407 * total data copying done.
408 * 2: number of files copied so far
409 * 3: total number of files to copy
411 * Handler should return true for save-as to continue, or false
412 * to stop (and remove all evidence of partial save-as).
414 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
416 /* if save_as() returns non-zero, this string will indicate the reason why.
418 std::string failure_message;
421 int save_as (SaveAs&);
422 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false);
423 int restore_state (std::string snapshot_name);
424 int save_template (std::string template_name);
425 int save_history (std::string snapshot_name = "");
426 int restore_history (std::string snapshot_name);
427 void remove_state (std::string snapshot_name);
428 void rename_state (std::string old_name, std::string new_name);
429 void remove_pending_capture_state ();
430 int rename (const std::string&, bool after_copy = false);
431 bool get_nsm_state () const { return _under_nsm_control; }
432 void set_nsm_state (bool state) { _under_nsm_control = state; }
433 bool save_default_options ();
435 PBD::Signal1<void,std::string> StateSaved;
436 PBD::Signal0<void> StateReady;
438 /* emitted when session needs to be saved due to some internal
439 * event or condition (i.e. not in response to a user request).
441 * Only one object should
442 * connect to this signal and take responsibility.
444 * Argument is the snapshot name to use when saving.
446 PBD::Signal1<void,std::string> SaveSessionRequested;
448 /* emitted during a session save to allow other entities to add state, via
449 * extra XML, to the session state
451 PBD::Signal0<void> SessionSaveUnderway;
453 std::vector<std::string> possible_states() const;
454 static std::vector<std::string> possible_states (std::string path);
456 XMLNode& get_state();
457 int set_state(const XMLNode& node, int version); // not idempotent
458 XMLNode& get_template();
460 /// The instant xml file is written to the session directory
461 void add_instant_xml (XMLNode&, bool write_to_config = true);
462 XMLNode* instant_xml (const std::string& str);
464 enum StateOfTheState {
469 InitialConnecting = 0x8,
474 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
476 class StateProtector {
478 StateProtector (Session* s) : _session (s) {
479 g_atomic_int_inc (&s->_suspend_save);
482 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
483 while (_session->_save_queued) {
484 _session->_save_queued = false;
485 _session->save_state ("");
493 void add_route_group (RouteGroup *);
494 void remove_route_group (RouteGroup&);
495 void reorder_route_groups (std::list<RouteGroup*>);
497 RouteGroup* route_group_by_name (std::string);
498 RouteGroup& all_route_group() const;
500 PBD::Signal1<void,RouteGroup*> route_group_added;
501 PBD::Signal0<void> route_group_removed;
502 PBD::Signal0<void> route_groups_reordered;
504 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
505 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
510 std::list<RouteGroup*> const & route_groups () const {
511 return _route_groups;
514 /* fundamental operations. duh. */
516 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
519 TrackMode mode = Normal,
520 RouteGroup* route_group = 0,
521 uint32_t how_many = 1,
522 std::string name_template = ""
525 RouteList new_audio_route (
526 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
529 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
530 const ChanCount& input, const ChanCount& output,
531 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
532 TrackMode mode = Normal,
533 RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
536 void remove_route (boost::shared_ptr<Route>);
537 void resort_routes ();
538 void resort_routes_using (boost::shared_ptr<RouteList>);
540 AudioEngine & engine() { return _engine; }
541 AudioEngine const & engine () const { return _engine; }
545 framepos_t transport_frame () const {return _transport_frame; }
546 framepos_t record_location () const {return _last_record_location; }
547 framepos_t audible_frame () const;
548 framepos_t requested_return_frame() const { return _requested_return_frame; }
549 void set_requested_return_frame(framepos_t return_to);
563 void sync_time_vars();
565 void bbt_time (framepos_t when, Timecode::BBT_Time&);
566 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
567 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
568 void timecode_time (Timecode::Time &);
569 void timecode_time (framepos_t when, Timecode::Time&);
570 void timecode_time_subframes (framepos_t when, Timecode::Time&);
572 void timecode_duration (framecnt_t, Timecode::Time&) const;
573 void timecode_duration_string (char *, size_t len, framecnt_t) const;
575 framecnt_t convert_to_frames (AnyTime const & position);
576 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
578 static PBD::Signal1<void, framepos_t> StartTimeChanged;
579 static PBD::Signal1<void, framepos_t> EndTimeChanged;
581 void request_sync_source (Slave*);
582 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
584 double transport_speed() const { return _transport_speed; }
585 bool transport_stopped() const { return _transport_speed == 0.0f; }
586 bool transport_rolling() const { return _transport_speed != 0.0f; }
588 bool silent () { return _silent; }
590 TempoMap& tempo_map() { return *_tempo_map; }
591 const TempoMap& tempo_map() const { return *_tempo_map; }
593 unsigned int get_xrun_count () const {return _xrun_count; }
594 void reset_xrun_count () {_xrun_count = 0; }
598 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
600 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
601 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
602 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
604 /* source management */
606 void import_files (ImportStatus&);
607 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
608 std::string build_tmp_convert_name (std::string file);
610 boost::shared_ptr<ExportHandler> get_export_handler ();
611 boost::shared_ptr<ExportStatus> get_export_status ();
613 int start_audio_export (framepos_t position);
615 PBD::Signal1<int, framecnt_t> ProcessExport;
616 static PBD::Signal2<void,std::string, std::string> Exported;
618 void add_source (boost::shared_ptr<Source>);
619 void remove_source (boost::weak_ptr<Source>);
621 void cleanup_regions();
622 int cleanup_sources (CleanupReport&);
623 int cleanup_trash_sources (CleanupReport&);
625 int destroy_sources (std::list<boost::shared_ptr<Source> >);
627 int remove_last_capture ();
629 /** handlers should return 0 for "everything OK", and any other value for
630 * "cannot setup audioengine".
632 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
634 /** handlers should return -1 for "stop cleanup",
635 0 for "yes, delete this playlist",
636 1 for "no, don't delete this playlist".
638 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
640 /** handlers should return 0 for "ignore the rate mismatch",
641 !0 for "do not use this session"
643 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
645 /** handlers should return !0 for use pending state, 0 for ignore it.
647 static PBD::Signal0<int> AskAboutPendingState;
649 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
650 size_t, std::string const &, uint32_t, bool destructive);
652 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
653 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
655 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
656 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
657 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
658 uint32_t count_sources_by_origin (const std::string&);
660 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
662 /* Curves and AutomationLists (TODO when they go away) */
663 void add_automation_list(AutomationList*);
667 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
668 void audition_playlist ();
669 void audition_region (boost::shared_ptr<Region>);
670 void cancel_audition ();
671 bool is_auditioning () const;
673 PBD::Signal1<void,bool> AuditionActive;
675 /* flattening stuff */
677 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
678 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
679 boost::shared_ptr<Processor> endpoint,
680 bool include_endpoint, bool for_export, bool for_freeze);
681 int freeze_all (InterThreadInfo&);
683 /* session-wide solo/mute/rec-enable */
685 bool soloing() const { return _non_soloed_outs_muted; }
686 bool listening() const { return _listen_cnt > 0; }
687 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
689 static const SessionEvent::RTeventCallback rt_cleanup;
691 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
692 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
693 void cancel_solo_after_disconnect (boost::shared_ptr<Route>, bool upstream, SessionEvent::RTeventCallback after = rt_cleanup);
694 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
695 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
696 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
697 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
698 void set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
699 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others=false);
701 PBD::Signal1<void,bool> SoloActive;
702 PBD::Signal0<void> SoloChanged;
703 PBD::Signal0<void> IsolatedChanged;
705 /* monitor/master out */
707 void add_monitor_section ();
708 void reset_monitor_section ();
709 void remove_monitor_section ();
711 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
712 boost::shared_ptr<Route> master_out() const { return _master_out; }
714 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
715 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
716 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
717 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
718 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
719 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
720 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
722 static void set_disable_all_loaded_plugins (bool yn) {
723 _disable_all_loaded_plugins = yn;
725 static bool get_disable_all_loaded_plugins() {
726 return _disable_all_loaded_plugins;
729 uint32_t next_send_id();
730 uint32_t next_aux_send_id();
731 uint32_t next_return_id();
732 uint32_t next_insert_id();
733 void mark_send_id (uint32_t);
734 void mark_aux_send_id (uint32_t);
735 void mark_return_id (uint32_t);
736 void mark_insert_id (uint32_t);
737 void unmark_send_id (uint32_t);
738 void unmark_aux_send_id (uint32_t);
739 void unmark_return_id (uint32_t);
740 void unmark_insert_id (uint32_t);
742 /* s/w "RAID" management */
744 boost::optional<framecnt_t> available_capture_duration();
748 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
749 void remove_bundle (boost::shared_ptr<Bundle>);
750 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
752 PBD::Signal0<void> BundleAddedOrRemoved;
756 /* History (for editors, mixers, UIs etc.) */
758 /** Undo some transactions.
759 * @param n Number of transactions to undo.
761 void undo (uint32_t n) {
765 void redo (uint32_t n) {
769 UndoHistory& history() { return _history; }
771 uint32_t undo_depth() const { return _history.undo_depth(); }
772 uint32_t redo_depth() const { return _history.redo_depth(); }
773 std::string next_undo() const { return _history.next_undo(); }
774 std::string next_redo() const { return _history.next_redo(); }
776 void begin_reversible_command (const std::string& cmd_name);
777 void begin_reversible_command (GQuark);
778 void abort_reversible_command ();
779 void commit_reversible_command (Command* cmd = 0);
781 void add_command (Command *const cmd) {
782 assert (_current_trans);
783 _current_trans->add_command (cmd);
786 /** @return The list of operations that are currently in progress */
787 std::list<GQuark> const & current_operations () {
788 return _current_trans_quarks;
791 bool operation_in_progress (GQuark) const;
793 void add_commands (std::vector<Command*> const & cmds);
795 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
797 // these commands are implemented in libs/ardour/session_command.cc
798 Command* memento_command_factory(XMLNode* n);
799 Command* stateful_diff_command_factory (XMLNode *);
800 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
804 boost::shared_ptr<IO> click_io() { return _click_io; }
805 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
807 /* disk, buffer loads */
809 uint32_t playback_load ();
810 uint32_t capture_load ();
814 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
815 void request_cancel_play_range ();
816 bool get_play_range () const { return _play_range; }
818 void maybe_update_session_range (framepos_t, framepos_t);
820 /* buffers for gain and pan */
822 gain_t* gain_automation_buffer () const;
823 gain_t* trim_automation_buffer () const;
824 gain_t* send_gain_automation_buffer () const;
825 pan_t** pan_automation_buffer () const;
827 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
831 static int vst_current_loading_id;
832 static const char* vst_can_do_strings[];
833 static const int vst_can_do_string_count;
835 static intptr_t vst_callback (
844 static PBD::Signal0<void> SendFeedback;
848 boost::shared_ptr<Speakers> get_speakers ();
852 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
853 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
855 void add_controllable (boost::shared_ptr<PBD::Controllable>);
856 void remove_controllable (PBD::Controllable*);
858 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
860 SessionConfiguration config;
862 bool exporting () const {
866 bool bounce_processing() const {
867 return _bounce_processing_active;
870 /* this is a private enum, but setup_enum_writer() needs it,
871 and i can't find a way to give that function
875 enum PostTransportWork {
876 PostTransportStop = 0x1,
877 PostTransportDuration = 0x2,
878 PostTransportLocate = 0x4,
879 PostTransportRoll = 0x8,
880 PostTransportAbort = 0x10,
881 PostTransportOverWrite = 0x20,
882 PostTransportSpeed = 0x40,
883 PostTransportAudition = 0x80,
884 PostTransportReverse = 0x100,
885 PostTransportInputChange = 0x200,
886 PostTransportCurveRealloc = 0x400,
887 PostTransportClearSubstate = 0x800,
888 PostTransportAdjustPlaybackBuffering = 0x1000,
889 PostTransportAdjustCaptureBuffering = 0x2000
898 SlaveState slave_state() const { return _slave_state; }
899 Slave* slave() const { return _slave; }
901 boost::shared_ptr<SessionPlaylists> playlists;
903 void send_mmc_locate (framepos_t);
904 void queue_full_time_code () { _send_timecode_update = true; }
905 void queue_song_position_pointer () { /* currently does nothing */ }
907 bool step_editing() const { return (_step_editors > 0); }
909 void request_suspend_timecode_transmission ();
910 void request_resume_timecode_transmission ();
911 bool timecode_transmission_suspended () const;
913 std::vector<std::string> source_search_path(DataType) const;
914 void ensure_search_path_includes (const std::string& path, DataType type);
915 void remove_dir_from_search_path (const std::string& path, DataType type);
917 std::list<std::string> unknown_processors () const;
919 /** Emitted when a feedback cycle has been detected within Ardour's signal
920 processing path. Until it is fixed (by the user) some (unspecified)
921 routes will not be run.
923 static PBD::Signal0<void> FeedbackDetected;
925 /** Emitted when a graph sort has successfully completed, which means
926 that it has no feedback cycles.
928 static PBD::Signal0<void> SuccessfulGraphSort;
930 /* handlers can return an integer value:
931 0: config.set_audio_search_path() or config.set_midi_search_path() was used
932 to modify the search path and we should try to find it again.
933 1: quit entire session load
934 2: as 0, but don't ask about other missing files
935 3: don't ask about other missing files, and just mark this one missing
936 -1: just mark this one missing
937 any other value: as -1
939 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
941 /** Emitted when the session wants Ardour to quit */
942 static PBD::Signal0<void> Quit;
944 /** Emitted when Ardour is asked to load a session in an older session
945 * format, and makes a backup copy.
947 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
949 SceneChanger* scene_changer() const { return _scene_changer; }
951 boost::shared_ptr<Port> ltc_input_port() const;
952 boost::shared_ptr<Port> ltc_output_port() const;
954 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
955 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
957 MIDI::Port* midi_input_port () const;
958 MIDI::Port* midi_output_port () const;
959 MIDI::Port* mmc_output_port () const;
960 MIDI::Port* mmc_input_port () const;
962 MIDI::Port* scene_input_port () const;
963 MIDI::Port* scene_output_port () const;
965 boost::shared_ptr<MidiPort> scene_in () const;
966 boost::shared_ptr<MidiPort> scene_out () const;
968 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
969 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
970 boost::shared_ptr<MidiPort> mtc_output_port () const;
971 boost::shared_ptr<MidiPort> mtc_input_port () const;
973 MIDI::MachineControl& mmc() { return *_mmc; }
976 friend class AudioEngine;
977 void set_block_size (pframes_t nframes);
978 void set_frame_rate (framecnt_t nframes);
979 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
983 void schedule_curve_reallocation ();
984 void update_latency_compensation (bool force = false);
987 int create (const std::string& mix_template, BusProfile*);
991 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
992 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
993 StopPendingCapture = 0x4,
994 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
995 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
996 PendingLocate = 0x20,
999 /* stuff used in process() should be close together to
1003 typedef void (Session::*process_function_type)(pframes_t);
1005 AudioEngine& _engine;
1006 mutable gint processing_prohibited;
1007 process_function_type process_function;
1008 process_function_type last_process_function;
1009 bool _bounce_processing_active;
1010 bool waiting_for_sync_offset;
1011 framecnt_t _base_frame_rate;
1012 framecnt_t _current_frame_rate; //this includes video pullup offset
1013 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1014 int transport_sub_state;
1015 mutable gint _record_status;
1016 framepos_t _transport_frame;
1017 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1021 // varispeed playback
1022 double _transport_speed;
1023 double _default_transport_speed;
1024 double _last_transport_speed;
1025 double _signalled_varispeed;
1026 double _target_transport_speed;
1027 CubicInterpolation interpolation;
1029 bool auto_play_legal;
1030 framepos_t _last_slave_transport_frame;
1031 framecnt_t maximum_output_latency;
1032 framepos_t _requested_return_frame;
1033 pframes_t current_block_size;
1034 framecnt_t _worst_output_latency;
1035 framecnt_t _worst_input_latency;
1036 framecnt_t _worst_track_latency;
1037 bool _have_captured;
1038 bool _non_soloed_outs_muted;
1039 uint32_t _listen_cnt;
1040 uint32_t _solo_isolated_cnt;
1043 bool _under_nsm_control;
1044 unsigned int _xrun_count;
1046 void initialize_latencies ();
1047 void set_worst_io_latencies ();
1048 void set_worst_playback_latency ();
1049 void set_worst_capture_latency ();
1050 void set_worst_io_latencies_x (IOChange, void *) {
1051 set_worst_io_latencies ();
1053 void post_capture_latency ();
1054 void post_playback_latency ();
1056 void update_latency_compensation_proxy (void* ignored);
1058 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1060 void process_scrub (pframes_t);
1061 void process_without_events (pframes_t);
1062 void process_with_events (pframes_t);
1063 void process_audition (pframes_t);
1064 int process_export (pframes_t);
1065 int process_export_fw (pframes_t);
1067 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1068 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1069 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1071 static const framecnt_t bounce_chunk_size;
1073 /* slave tracking */
1075 static const int delta_accumulator_size = 25;
1076 int delta_accumulator_cnt;
1077 int32_t delta_accumulator[delta_accumulator_size];
1078 int32_t average_slave_delta;
1080 bool have_first_delta_accumulator;
1082 SlaveState _slave_state;
1083 framepos_t slave_wait_end;
1085 void reset_slave_state ();
1086 bool follow_slave (pframes_t);
1087 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1088 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1089 void follow_slave_silently (pframes_t nframes, float slave_speed);
1091 void switch_to_sync_source (SyncSource); /* !RT context */
1092 void drop_sync_source (); /* !RT context */
1093 void use_sync_source (Slave*); /* RT context */
1095 bool post_export_sync;
1096 framepos_t post_export_position;
1099 bool _export_started;
1100 bool _export_rolling;
1102 boost::shared_ptr<ExportHandler> export_handler;
1103 boost::shared_ptr<ExportStatus> export_status;
1106 int stop_audio_export ();
1107 void finalize_audio_export ();
1108 void finalize_export_internal (bool stop_freewheel);
1109 bool _pre_export_mmc_enabled;
1111 PBD::ScopedConnection export_freewheel_connection;
1113 void get_track_statistics ();
1114 int process_routes (pframes_t, bool& need_butler);
1115 int silent_process_routes (pframes_t, bool& need_butler);
1117 /** @return 1 if there is a pending declick fade-in,
1118 -1 if there is a pending declick fade-out,
1119 0 if there is no pending declick.
1121 int get_transport_declick_required () {
1122 if (transport_sub_state & PendingDeclickIn) {
1123 transport_sub_state &= ~PendingDeclickIn;
1125 } else if (transport_sub_state & PendingDeclickOut) {
1126 /* XXX: not entirely sure why we don't clear this */
1128 } else if (transport_sub_state & PendingLoopDeclickOut) {
1129 /* Return the declick out first ... */
1130 transport_sub_state &= ~PendingLoopDeclickOut;
1132 } else if (transport_sub_state & PendingLoopDeclickIn) {
1133 /* ... then the declick in on the next call */
1134 transport_sub_state &= ~PendingLoopDeclickIn;
1141 bool maybe_stop (framepos_t limit);
1142 bool maybe_sync_start (pframes_t &);
1144 void check_declick_out ();
1150 /** Number of process frames since the last MTC output (when sending MTC); used to
1151 * know when to send full MTC messages every so often.
1153 pframes_t _pframes_since_last_mtc;
1154 bool session_midi_feedback;
1157 framepos_t last_loopend;
1159 boost::scoped_ptr<SessionDirectory> _session_dir;
1162 void graph_reordered ();
1164 /** current snapshot name, without the .ardour suffix */
1165 std::string _current_snapshot_name;
1167 XMLTree* state_tree;
1168 bool state_was_pending;
1169 StateOfTheState _state_of_the_state;
1171 friend class StateProtector;
1172 gint _suspend_save; /* atomic */
1173 volatile bool _save_queued;
1174 Glib::Threads::Mutex save_state_lock;
1176 int load_options (const XMLNode&);
1177 int load_state (std::string snapshot_name);
1179 framepos_t _last_roll_location;
1180 /** the session frame time at which we last rolled, located, or changed transport direction */
1181 framepos_t _last_roll_or_reversal_location;
1182 framepos_t _last_record_location;
1184 bool pending_locate_roll;
1185 framepos_t pending_locate_frame;
1186 bool pending_locate_flush;
1188 bool pending_auto_loop;
1192 static const PostTransportWork ProcessCannotProceedMask =
1194 PostTransportInputChange|
1196 PostTransportReverse|
1197 PostTransportCurveRealloc|
1198 PostTransportAudition|
1199 PostTransportLocate|
1201 PostTransportClearSubstate);
1203 gint _post_transport_work; /* accessed only atomic ops */
1204 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1205 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1206 void add_post_transport_work (PostTransportWork ptw);
1208 void schedule_playback_buffering_adjustment ();
1209 void schedule_capture_buffering_adjustment ();
1211 uint32_t cumulative_rf_motion;
1214 void set_rf_speed (float speed);
1215 void reset_rf_scale (framecnt_t frames_moved);
1217 Locations* _locations;
1218 void location_added (Location*);
1219 void location_removed (Location*);
1220 void locations_changed ();
1221 void _locations_changed (const Locations::LocationList&);
1223 void update_skips (Location*, bool consolidate);
1224 void update_marks (Location* loc);
1225 void update_loop (Location* loc);
1226 void consolidate_skips (Location*);
1227 void sync_locations_to_skips ();
1228 void _sync_locations_to_skips ();
1230 PBD::ScopedConnectionList skip_update_connections;
1231 bool _ignore_skips_updates;
1233 PBD::ScopedConnectionList punch_connections;
1234 void auto_punch_start_changed (Location *);
1235 void auto_punch_end_changed (Location *);
1236 void auto_punch_changed (Location *);
1238 PBD::ScopedConnectionList loop_connections;
1239 void auto_loop_changed (Location *);
1240 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1242 int ensure_engine (uint32_t desired_sample_rate);
1243 void pre_engine_init (std::string path);
1244 int post_engine_init ();
1245 int immediately_post_engine ();
1246 void remove_empty_sounds ();
1248 void setup_midi_control ();
1249 int midi_read (MIDI::Port *);
1251 void enable_record ();
1253 void increment_transport_position (framecnt_t val) {
1254 if (max_framepos - val < _transport_frame) {
1255 _transport_frame = max_framepos;
1257 _transport_frame += val;
1261 void decrement_transport_position (framecnt_t val) {
1262 if (val < _transport_frame) {
1263 _transport_frame -= val;
1265 _transport_frame = 0;
1269 void post_transport_motion ();
1270 static void *session_loader_thread (void *arg);
1274 /* Signal Forwarding */
1275 void emit_route_signals () const;
1276 void emit_thread_run ();
1277 static void *emit_thread (void *);
1278 void emit_thread_start ();
1279 void emit_thread_terminate ();
1281 pthread_t _rt_emit_thread;
1282 bool _rt_thread_active;
1284 pthread_mutex_t _rt_emit_mutex;
1285 pthread_cond_t _rt_emit_cond;
1286 bool _rt_emit_pending;
1289 /* SessionEventManager interface */
1291 void process_event (SessionEvent*);
1292 void set_next_event ();
1293 void cleanup_event (SessionEvent*,int);
1295 /* MIDI Machine Control */
1298 void spp_continue ();
1301 void mmc_deferred_play (MIDI::MachineControl &);
1302 void mmc_stop (MIDI::MachineControl &);
1303 void mmc_step (MIDI::MachineControl &, int);
1304 void mmc_pause (MIDI::MachineControl &);
1305 void mmc_record_pause (MIDI::MachineControl &);
1306 void mmc_record_strobe (MIDI::MachineControl &);
1307 void mmc_record_exit (MIDI::MachineControl &);
1308 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1309 void mmc_fast_forward (MIDI::MachineControl &);
1310 void mmc_rewind (MIDI::MachineControl &);
1311 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1312 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1313 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1315 struct timeval last_mmc_step;
1318 typedef boost::function<bool()> MidiTimeoutCallback;
1319 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1321 MidiTimeoutList midi_timeouts;
1322 bool mmc_step_timeout ();
1323 void send_immediate_mmc (MIDI::MachineControlCommand);
1325 MIDI::byte mtc_msg[16];
1326 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1327 MIDI::byte midi_msg[16];
1328 double outbound_mtc_timecode_frame;
1329 Timecode::Time transmitting_timecode_time;
1330 int next_quarter_frame_to_send;
1332 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1333 framecnt_t _frames_per_hour;
1334 framecnt_t _timecode_frames_per_hour;
1336 /* cache the most-recently requested time conversions. This helps when we
1337 * have multiple clocks showing the same time (e.g. the transport frame) */
1338 bool last_timecode_valid;
1339 framepos_t last_timecode_when;
1340 Timecode::Time last_timecode;
1342 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1344 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1346 LTCEncoder* ltc_encoder;
1347 ltcsnd_sample_t* ltc_enc_buf;
1349 Timecode::TimecodeFormat ltc_enc_tcformat;
1350 int32_t ltc_buf_off;
1351 int32_t ltc_buf_len;
1354 int32_t ltc_enc_byte;
1355 framepos_t ltc_enc_pos;
1357 framepos_t ltc_enc_off;
1359 framepos_t ltc_prev_cycle;
1361 framepos_t ltc_timecode_offset;
1362 bool ltc_timecode_negative_offset;
1364 LatencyRange ltc_out_latency;
1366 void ltc_tx_initialize();
1367 void ltc_tx_cleanup();
1368 void ltc_tx_reset();
1369 void ltc_tx_resync_latency();
1370 void ltc_tx_recalculate_position();
1371 void ltc_tx_parse_offset();
1372 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1374 void reset_record_status ();
1376 int no_roll (pframes_t nframes);
1377 int fail_roll (pframes_t nframes);
1379 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1380 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1382 MidiControlUI* midi_control_ui;
1384 int start_midi_thread ();
1386 void set_play_loop (bool yn, double speed);
1387 void unset_play_loop ();
1388 void overwrite_some_buffers (Track *);
1389 void flush_all_inserts ();
1390 int micro_locate (framecnt_t distance);
1391 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1392 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1393 void force_locate (framepos_t frame, bool with_roll = false);
1394 void set_track_speed (Track *, double speed);
1395 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1396 void stop_transport (bool abort = false, bool clear_state = false);
1397 void start_transport ();
1398 void realtime_stop (bool abort, bool clear_state);
1399 void realtime_locate ();
1400 void non_realtime_start_scrub ();
1401 void non_realtime_set_speed ();
1402 void non_realtime_locate ();
1403 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1404 void non_realtime_overwrite (int entry_request_count, bool& finished);
1405 void post_transport ();
1406 void engine_halted ();
1407 void xrun_recovery ();
1408 void set_track_loop (bool);
1410 /* These are synchronous and so can only be called from within the process
1414 int send_full_time_code (framepos_t, pframes_t nframes);
1415 void send_song_position_pointer (framepos_t);
1417 TempoMap *_tempo_map;
1418 void tempo_map_changed (const PBD::PropertyChange&);
1420 /* edit/mix groups */
1422 int load_route_groups (const XMLNode&, int);
1424 std::list<RouteGroup *> _route_groups;
1425 RouteGroup* _all_route_group;
1429 boost::shared_ptr<Graph> _process_graph;
1431 SerializedRCUManager<RouteList> routes;
1433 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save);
1434 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect);
1435 bool _adding_routes_in_progress;
1436 uint32_t destructive_index;
1438 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1439 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1441 void route_processors_changed (RouteProcessorChange);
1443 bool find_route_name (std::string const &, uint32_t& id, char* name, size_t name_len, bool);
1444 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1445 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1446 bool with_lock, bool connect_inputs = true,
1447 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1448 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1450 /* track numbering */
1452 void reassign_track_numbers ();
1453 uint32_t _track_number_decimals;
1457 bool solo_update_disabled;
1459 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1460 void route_mute_changed (void *src);
1461 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1462 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1463 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1465 void listen_position_changed ();
1466 void solo_control_mode_changed ();
1468 /* REGION MANAGEMENT */
1470 mutable Glib::Threads::Mutex region_lock;
1472 int load_regions (const XMLNode& node);
1473 int load_compounds (const XMLNode& node);
1475 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1476 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1477 void route_group_property_changed (RouteGroup *);
1481 mutable Glib::Threads::Mutex source_lock;
1484 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1487 void reset_write_sources (bool mark_write_complete, bool force = false);
1492 int load_sources (const XMLNode& node);
1493 XMLNode& get_sources_as_xml ();
1495 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1499 void remove_playlist (boost::weak_ptr<Playlist>);
1500 void track_playlist_changed (boost::weak_ptr<Track>);
1501 void playlist_region_added (boost::weak_ptr<Region>);
1502 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1503 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1505 /* CURVES and AUTOMATION LISTS */
1506 std::map<PBD::ID, AutomationList*> automation_lists;
1508 /* DEFAULT FADE CURVES */
1510 float default_fade_steepness;
1511 float default_fade_msecs;
1515 boost::shared_ptr<Auditioner> auditioner;
1516 void set_audition (boost::shared_ptr<Region>);
1517 void non_realtime_set_audition ();
1518 boost::shared_ptr<Region> pending_audition_region;
1524 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1526 /* INSERT AND SEND MANAGEMENT */
1528 boost::dynamic_bitset<uint32_t> send_bitset;
1529 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1530 boost::dynamic_bitset<uint32_t> return_bitset;
1531 boost::dynamic_bitset<uint32_t> insert_bitset;
1535 struct space_and_path {
1536 uint32_t blocks; ///< 4kB blocks
1537 bool blocks_unknown; ///< true if blocks is unknown
1542 , blocks_unknown (true)
1546 struct space_and_path_ascending_cmp {
1547 bool operator() (space_and_path a, space_and_path b) {
1548 if (a.blocks_unknown != b.blocks_unknown) {
1549 return !a.blocks_unknown;
1551 return a.blocks > b.blocks;
1555 void setup_raid_path (std::string path);
1557 std::vector<space_and_path> session_dirs;
1558 std::vector<space_and_path>::iterator last_rr_session_dir;
1559 uint32_t _total_free_4k_blocks;
1560 /** If this is true, _total_free_4k_blocks is not definite,
1561 as one or more of the session directories' filesystems
1562 could not report free space.
1564 bool _total_free_4k_blocks_uncertain;
1565 Glib::Threads::Mutex space_lock;
1567 bool no_questions_about_missing_files;
1569 std::string get_best_session_directory_for_new_audio ();
1571 mutable gint _playback_load;
1572 mutable gint _capture_load;
1576 SerializedRCUManager<BundleList> _bundles;
1577 XMLNode* _bundle_xml_node;
1578 int load_bundles (XMLNode const &);
1580 UndoHistory _history;
1581 /** current undo transaction, or 0 */
1582 UndoTransaction* _current_trans;
1583 /** GQuarks to describe the reversible commands that are currently in progress.
1584 * These may be nested, in which case more recently-started commands are toward
1585 * the front of the list.
1587 std::list<GQuark> _current_trans_quarks;
1589 int backend_sync_callback (TransportState, framepos_t);
1591 void process_rtop (SessionEvent*);
1593 void update_latency (bool playback);
1595 XMLNode& state(bool);
1598 typedef std::list<Click*> Clicks;
1601 boost::shared_ptr<IO> _click_io;
1602 boost::shared_ptr<Amp> _click_gain;
1604 Sample* click_emphasis_data;
1605 framecnt_t click_length;
1606 framecnt_t click_emphasis_length;
1607 mutable Glib::Threads::RWLock click_lock;
1609 static const Sample default_click[];
1610 static const framecnt_t default_click_length;
1611 static const Sample default_click_emphasis[];
1612 static const framecnt_t default_click_emphasis_length;
1615 framepos_t _clicks_cleared;
1616 void setup_click_sounds (int which);
1617 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1618 void clear_clicks ();
1619 void click (framepos_t start, framecnt_t nframes);
1621 std::vector<Route*> master_outs;
1623 /* range playback */
1625 std::list<AudioRange> current_audio_range;
1627 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1628 void unset_play_range ();
1633 boost::shared_ptr<Route> _master_out;
1634 boost::shared_ptr<Route> _monitor_out;
1636 void auto_connect_master_bus ();
1638 /* Windows VST support */
1640 long _windows_vst_callback (
1649 int find_all_sources (std::string path, std::set<std::string>& result);
1650 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1652 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1653 Glib::Threads::Mutex controllables_lock;
1654 Controllables controllables;
1656 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1658 void reset_native_file_format();
1659 bool first_file_data_format_reset;
1660 bool first_file_header_format_reset;
1662 void config_changed (std::string, bool);
1664 XMLNode& get_control_protocol_state ();
1666 void set_history_depth (uint32_t depth);
1668 static bool _disable_all_loaded_plugins;
1670 mutable bool have_looped; ///< Used in ::audible_frame(*)
1672 void update_have_rec_enabled_track ();
1673 gint _have_rec_enabled_track;
1675 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1677 /* realtime "apply to set of routes" operations */
1678 template<typename T> SessionEvent*
1679 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, bool group_override,
1680 void (Session::*method) (boost::shared_ptr<RouteList>, T, bool)) {
1681 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1682 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1683 ev->rt_return = after;
1684 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1689 void rt_cancel_solo_after_disconnect (boost::shared_ptr<RouteList>, bool upstream, bool /* ignored*/ );
1690 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1691 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1692 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1693 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1694 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1695 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1696 void rt_set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, bool group_override);
1698 /** temporary list of Diskstreams used only during load of 2.X sessions */
1699 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1701 void add_session_range_location (framepos_t, framepos_t);
1703 void setup_midi_machine_control ();
1705 void step_edit_status_change (bool);
1706 uint32_t _step_editors;
1708 /** true if timecode transmission by the transport is suspended, otherwise false */
1709 mutable gint _suspend_timecode_transmission;
1711 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1713 void start_time_changed (framepos_t);
1714 void end_time_changed (framepos_t);
1716 void set_track_monitor_input_status (bool);
1717 framepos_t compute_stop_limit () const;
1719 boost::shared_ptr<Speakers> _speakers;
1720 void load_nested_sources (const XMLNode& node);
1722 /** The directed graph of routes that is currently being used for audio processing
1723 and solo/mute computations.
1725 GraphEdges _current_route_graph;
1727 uint32_t next_control_id () const;
1728 int32_t _order_hint;
1729 bool ignore_route_processor_changes;
1731 MidiClockTicker* midi_clock;
1733 boost::shared_ptr<IO> _ltc_input;
1734 boost::shared_ptr<IO> _ltc_output;
1736 void reconnect_ltc_input ();
1737 void reconnect_ltc_output ();
1739 /* Scene Changing */
1740 SceneChanger* _scene_changer;
1742 /* persistent, non-track related MIDI ports */
1743 MidiPortManager* _midi_ports;
1744 MIDI::MachineControl* _mmc;
1747 void setup_click ();
1748 void setup_click_state (const XMLNode*);
1749 void setup_bundles ();
1751 void save_as_bring_callback (uint32_t, uint32_t, std::string);
1753 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
1757 } // namespace ARDOUR
1759 #endif /* __ardour_session_h__ */