2 Copyright (C) 2000 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_session_h__
21 #define __ardour_session_h__
23 #include "libardour-config.h"
32 #include <boost/dynamic_bitset.hpp>
33 #include <boost/scoped_ptr.hpp>
34 #include <boost/weak_ptr.hpp>
35 #include <boost/utility.hpp>
37 #include <glibmm/thread.h>
39 #include "pbd/error.h"
41 #include "pbd/statefuldestructible.h"
42 #include "pbd/signals.h"
45 #include "midi++/types.h"
47 #include "timecode/time.h"
49 #include "ardour/ardour.h"
50 #include "ardour/click.h"
51 #include "ardour/chan_count.h"
52 #include "ardour/rc_configuration.h"
53 #include "ardour/session_configuration.h"
54 #include "ardour/session_event.h"
55 #include "ardour/location.h"
56 #include "ardour/interpolation.h"
57 #include "ardour/speakers.h"
59 #ifdef HAVE_JACK_SESSION
60 #include <jack/session.h>
75 class ControllableDescriptor;
85 class AudioFileSource;
105 class NamedSelection;
118 class SessionDirectory;
119 class SessionMetadata;
120 class SessionPlaylists;
129 extern void setup_enum_writer ();
131 class Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
140 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
141 the bus profile can be null if no master out bus is required.
144 Session (AudioEngine&,
145 const std::string& fullpath,
146 const std::string& snapshot_name,
147 BusProfile* bus_profile = 0,
148 std::string mix_template = "");
152 std::string path() const { return _path; }
153 std::string name() const { return _name; }
154 std::string snap_name() const { return _current_snapshot_name; }
155 std::string raid_path () const;
156 bool path_is_within_session (const std::string&);
158 void set_snap_name ();
160 bool writable() const { return _writable; }
163 bool dirty() const { return _state_of_the_state & Dirty; }
164 void set_deletion_in_progress ();
165 void clear_deletion_in_progress ();
166 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
167 PBD::Signal0<void> DirtyChanged;
169 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
171 static PBD::Signal0<void> AutoBindingOn;
172 static PBD::Signal0<void> AutoBindingOff;
174 static PBD::Signal1<void,std::string> Dialog;
176 std::string sound_dir (bool with_path = true) const;
177 std::string peak_dir () const;
178 std::string dead_dir () const;
179 std::string automation_dir () const;
180 std::string analysis_dir() const;
181 std::string plugins_dir() const;
183 int ensure_subdirs ();
185 std::string peak_path (std::string) const;
187 std::string change_source_path_by_name (std::string oldpath, std::string oldname, std::string newname, bool destructive);
189 std::string peak_path_from_audio_path (std::string) const;
190 std::string new_audio_source_name (const std::string&, uint32_t nchans, uint32_t chan, bool destructive);
191 std::string new_midi_source_name (const std::string&);
192 std::string new_source_path_from_name (DataType type, const std::string&);
193 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path);
195 void process (pframes_t nframes);
197 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
198 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
199 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
201 bool have_rec_enabled_track () const;
203 bool have_captured() const { return _have_captured; }
205 void refill_all_track_buffers ();
206 Butler* butler() { return _butler; }
207 void butler_transport_work ();
209 void refresh_disk_space ();
211 int load_diskstreams_2X (XMLNode const &, int);
213 int load_routes (const XMLNode&, int);
214 boost::shared_ptr<RouteList> get_routes() const {
215 return routes.reader ();
218 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
220 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
222 uint32_t nroutes() const { return routes.reader()->size(); }
223 uint32_t ntracks () const;
224 uint32_t nbusses () const;
226 boost::shared_ptr<BundleList> bundles () {
227 return _bundles.reader ();
230 struct RoutePublicOrderSorter {
231 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
234 void sync_order_keys (std::string const &);
236 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
237 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
238 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
240 bool io_name_is_legal (const std::string&);
241 boost::shared_ptr<Route> route_by_name (std::string);
242 boost::shared_ptr<Route> route_by_id (PBD::ID);
243 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
245 bool route_name_unique (std::string) const;
246 bool route_name_internal (std::string) const;
248 bool get_record_enabled() const {
249 return (record_status () >= Enabled);
252 RecordState record_status() const {
253 return (RecordState) g_atomic_int_get (&_record_status);
256 bool actively_recording () {
257 return record_status() == Recording;
260 bool record_enabling_legal () const;
261 void maybe_enable_record ();
262 void disable_record (bool rt_context, bool force = false);
263 void step_back_from_record ();
265 void maybe_write_autosave ();
267 /* Emitted when all i/o connections are complete */
269 PBD::Signal0<void> IOConnectionsComplete;
271 /* Record status signals */
273 PBD::Signal0<void> RecordStateChanged;
275 /* Transport mechanism signals */
277 PBD::Signal0<void> TransportStateChange; /* generic */
278 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
279 PBD::Signal1<void,framepos_t> Xrun;
280 PBD::Signal0<void> TransportLooped;
282 /** emitted when a locate has occurred */
283 PBD::Signal0<void> Located;
285 PBD::Signal1<void,RouteList&> RouteAdded;
286 /** Emitted when anything about any of our route groups changes */
287 PBD::Signal0<void> RouteGroupChanged;
289 /* Step Editing status changed */
290 PBD::Signal1<void,bool> StepEditStatusChange;
292 void queue_event (SessionEvent*);
294 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
295 void request_bounded_roll (framepos_t start, framepos_t end);
296 void request_stop (bool abort = false, bool clear_state = false);
297 void request_locate (framepos_t frame, bool with_roll = false);
299 void request_play_loop (bool yn, bool leave_rolling = false);
300 bool get_play_loop () const { return play_loop; }
302 framepos_t last_transport_start () const { return _last_roll_location; }
305 void use_rf_shuttle_speed ();
306 void allow_auto_play (bool yn);
307 void request_transport_speed (double speed);
308 void request_transport_speed_nonzero (double);
309 void request_overwrite_buffer (Track *);
310 void adjust_playback_buffering();
311 void adjust_capture_buffering();
312 void request_track_speed (Track *, double speed);
313 void request_input_change_handling ();
315 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
316 bool transport_locked () const;
320 framepos_t current_end_frame () const;
321 framepos_t current_start_frame () const;
322 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
323 framecnt_t frame_rate () const { return _current_frame_rate; }
324 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
325 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
326 framecnt_t frames_per_hour () const { return _frames_per_hour; }
328 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
329 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
331 MIDI::byte get_mtc_timecode_bits() const {
332 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
335 float timecode_frames_per_second() const;
336 bool timecode_drop_frames() const;
340 Locations *locations() { return _locations; }
342 PBD::Signal1<void,Location*> auto_loop_location_changed;
343 PBD::Signal1<void,Location*> auto_punch_location_changed;
344 PBD::Signal0<void> locations_modified;
346 void set_auto_punch_location (Location *);
347 void set_auto_loop_location (Location *);
348 int location_name(std::string& result, std::string base = std::string(""));
350 void reset_input_monitor_state ();
352 pframes_t get_block_size() const { return current_block_size; }
353 framecnt_t worst_output_latency () const { return _worst_output_latency; }
354 framecnt_t worst_input_latency () const { return _worst_input_latency; }
355 framecnt_t worst_track_latency () const { return _worst_track_latency; }
356 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
358 #ifdef HAVE_JACK_SESSION
359 void jack_session_event (jack_session_event_t* event);
361 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false);
362 int restore_state (std::string snapshot_name);
363 int save_template (std::string template_name);
364 int save_history (std::string snapshot_name = "");
365 int restore_history (std::string snapshot_name);
366 void remove_state (std::string snapshot_name);
367 void rename_state (std::string old_name, std::string new_name);
368 void remove_pending_capture_state ();
370 static int rename_template (std::string old_name, std::string new_name);
371 static int delete_template (std::string name);
373 PBD::Signal1<void,std::string> StateSaved;
374 PBD::Signal0<void> StateReady;
376 std::vector<std::string*>* possible_states() const;
377 static std::vector<std::string*>* possible_states (std::string path);
379 XMLNode& get_state();
380 int set_state(const XMLNode& node, int version); // not idempotent
381 XMLNode& get_template();
383 /// The instant xml file is written to the session directory
384 void add_instant_xml (XMLNode&, bool write_to_config = true);
385 XMLNode* instant_xml (const std::string& str);
387 enum StateOfTheState {
392 InitialConnecting = 0x8,
397 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
399 void add_route_group (RouteGroup *);
400 void remove_route_group (RouteGroup&);
402 RouteGroup* route_group_by_name (std::string);
403 RouteGroup& all_route_group() const;
405 PBD::Signal1<void,RouteGroup*> route_group_added;
406 PBD::Signal0<void> route_group_removed;
408 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
409 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
414 std::list<RouteGroup*> const & route_groups () const {
415 return _route_groups;
418 /* fundamental operations. duh. */
420 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
423 TrackMode mode = Normal,
424 RouteGroup* route_group = 0,
425 uint32_t how_many = 1,
426 std::string name_template = ""
429 RouteList new_audio_route (
430 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
433 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
434 TrackMode mode = Normal, RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
437 void remove_route (boost::shared_ptr<Route>);
438 void resort_routes ();
439 void resort_routes_using (boost::shared_ptr<RouteList>);
441 void set_remote_control_ids();
443 AudioEngine & engine() { return _engine; }
444 AudioEngine const & engine () const { return _engine; }
448 framepos_t transport_frame () const {return _transport_frame; }
449 framepos_t audible_frame () const;
450 framepos_t requested_return_frame() const { return _requested_return_frame; }
464 void sync_time_vars();
466 void bbt_time (framepos_t when, Timecode::BBT_Time&);
467 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
468 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
469 void timecode_time (Timecode::Time &);
470 void timecode_time (framepos_t when, Timecode::Time&);
471 void timecode_time_subframes (framepos_t when, Timecode::Time&);
473 void timecode_duration (framecnt_t, Timecode::Time&) const;
474 void timecode_duration_string (char *, framecnt_t) const;
476 framecnt_t convert_to_frames (AnyTime const & position);
477 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
479 static PBD::Signal1<void, framepos_t> StartTimeChanged;
480 static PBD::Signal1<void, framepos_t> EndTimeChanged;
482 std::vector<SyncSource> get_available_sync_options() const;
483 void request_sync_source (Slave*);
484 bool synced_to_jack() const { return config.get_external_sync() && config.get_sync_source() == JACK; }
486 double transport_speed() const { return _transport_speed; }
487 bool transport_stopped() const { return _transport_speed == 0.0f; }
488 bool transport_rolling() const { return _transport_speed != 0.0f; }
490 void set_silent (bool yn);
491 bool silent () { return _silent; }
493 TempoMap& tempo_map() { return *_tempo_map; }
495 /// signals the current transport position in frames, bbt and timecode time (in that order)
496 PBD::Signal3<void, const framepos_t &, const Timecode::BBT_Time&, const Timecode::Time&> tick;
500 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
502 std::string path_from_region_name (DataType type, std::string name, std::string identifier);
504 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
505 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
506 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
508 /* source management */
510 void import_audiofiles (ImportStatus&);
511 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
512 std::string build_tmp_convert_name (std::string file);
514 boost::shared_ptr<ExportHandler> get_export_handler ();
515 boost::shared_ptr<ExportStatus> get_export_status ();
517 int start_audio_export (framepos_t position, bool realtime);
519 PBD::Signal1<int, framecnt_t> ProcessExport;
520 static PBD::Signal2<void,std::string, std::string> Exported;
522 void add_source (boost::shared_ptr<Source>);
523 void remove_source (boost::weak_ptr<Source>);
525 void cleanup_regions();
526 int cleanup_sources (CleanupReport&);
527 int cleanup_trash_sources (CleanupReport&);
529 int destroy_sources (std::list<boost::shared_ptr<Source> >);
531 int remove_last_capture ();
533 /** handlers should return -1 for "stop cleanup",
534 0 for "yes, delete this playlist",
535 1 for "no, don't delete this playlist".
537 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
539 /** handlers should return 0 for "ignore the rate mismatch",
540 !0 for "do not use this session"
542 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
544 /** handlers should return !0 for use pending state, 0 for ignore it.
546 static PBD::Signal0<int> AskAboutPendingState;
548 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
549 size_t, std::string const &, uint32_t, bool destructive);
551 boost::shared_ptr<MidiSource> create_midi_source_for_session (
552 Track*, std::string const &);
554 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
555 boost::shared_ptr<Source> source_by_path_and_channel (const std::string&, uint16_t);
556 uint32_t count_sources_by_origin (const std::string&);
558 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
560 /* named selections */
562 boost::shared_ptr<NamedSelection> named_selection_by_name (std::string name);
563 void add_named_selection (boost::shared_ptr<NamedSelection>);
564 void remove_named_selection (boost::shared_ptr<NamedSelection>);
566 template<class T> void foreach_named_selection (T& obj, void (T::*func)(boost::shared_ptr<NamedSelection>));
567 PBD::Signal0<void> NamedSelectionAdded;
568 PBD::Signal0<void> NamedSelectionRemoved;
570 /* Curves and AutomationLists (TODO when they go away) */
571 void add_automation_list(AutomationList*);
575 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
576 void audition_playlist ();
577 void audition_region (boost::shared_ptr<Region>);
578 void cancel_audition ();
579 bool is_auditioning () const;
581 PBD::Signal1<void,bool> AuditionActive;
583 /* flattening stuff */
585 boost::shared_ptr<Region> write_one_track (AudioTrack&, framepos_t start, framepos_t end,
586 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
587 bool enable_processing = true);
588 int freeze_all (InterThreadInfo&);
590 /* session-wide solo/mute/rec-enable */
592 bool soloing() const { return _non_soloed_outs_muted; }
593 bool listening() const { return _listen_cnt > 0; }
594 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
596 static const SessionEvent::RTeventCallback rt_cleanup;
598 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
599 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
600 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
601 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
602 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
603 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
605 PBD::Signal1<void,bool> SoloActive;
606 PBD::Signal0<void> SoloChanged;
607 PBD::Signal0<void> IsolatedChanged;
609 /* control/master out */
611 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
612 boost::shared_ptr<Route> master_out() const { return _master_out; }
614 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
615 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
616 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
617 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
618 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
620 static void set_disable_all_loaded_plugins (bool yn) {
621 _disable_all_loaded_plugins = yn;
623 static bool get_disable_all_loaded_plugins() {
624 return _disable_all_loaded_plugins;
627 uint32_t next_send_id();
628 uint32_t next_return_id();
629 uint32_t next_insert_id();
630 void mark_send_id (uint32_t);
631 void mark_return_id (uint32_t);
632 void mark_insert_id (uint32_t);
633 void unmark_send_id (uint32_t);
634 void unmark_return_id (uint32_t);
635 void unmark_insert_id (uint32_t);
637 /* s/w "RAID" management */
639 framecnt_t available_capture_duration();
643 void add_bundle (boost::shared_ptr<Bundle>);
644 void remove_bundle (boost::shared_ptr<Bundle>);
645 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
647 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleAdded;
648 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleRemoved;
652 /* History (for editors, mixers, UIs etc.) */
654 /** Undo some transactions.
655 * @param n Number of transactions to undo.
657 void undo (uint32_t n) {
661 void redo (uint32_t n) {
665 UndoHistory& history() { return _history; }
667 uint32_t undo_depth() const { return _history.undo_depth(); }
668 uint32_t redo_depth() const { return _history.redo_depth(); }
669 std::string next_undo() const { return _history.next_undo(); }
670 std::string next_redo() const { return _history.next_redo(); }
672 void begin_reversible_command (const std::string& cmd_name);
673 void begin_reversible_command (GQuark);
674 void commit_reversible_command (Command* cmd = 0);
676 void add_command (Command *const cmd) {
677 assert (_current_trans);
678 _current_trans->add_command (cmd);
681 /** @return The list of operations that are currently in progress */
682 std::list<GQuark> const & current_operations () {
683 return _current_trans_quarks;
686 void add_commands (std::vector<Command*> const & cmds);
688 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
690 // these commands are implemented in libs/ardour/session_command.cc
691 Command* memento_command_factory(XMLNode* n);
692 Command* stateful_diff_command_factory (XMLNode *);
693 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
697 boost::shared_ptr<IO> click_io() { return _click_io; }
699 /* disk, buffer loads */
701 uint32_t playback_load ();
702 uint32_t capture_load ();
706 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
707 bool get_play_range () const { return _play_range; }
709 /* buffers for gain and pan */
711 gain_t* gain_automation_buffer () const;
712 pan_t** pan_automation_buffer () const;
714 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
718 static long vst_callback (AEffect* effect,
725 static PBD::Signal0<void> SendFeedback;
729 boost::shared_ptr<Speakers> get_speakers ();
733 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
734 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
736 void add_controllable (boost::shared_ptr<PBD::Controllable>);
737 void remove_controllable (PBD::Controllable*);
739 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
741 SessionMetadata & metadata () { return *_metadata; }
743 SessionConfiguration config;
745 bool exporting () const {
749 /* this is a private enum, but setup_enum_writer() needs it,
750 and i can't find a way to give that function
754 enum PostTransportWork {
755 PostTransportStop = 0x1,
756 PostTransportDisableRecord = 0x2,
757 PostTransportPosition = 0x8,
758 PostTransportDidRecord = 0x20,
759 PostTransportDuration = 0x40,
760 PostTransportLocate = 0x80,
761 PostTransportRoll = 0x200,
762 PostTransportAbort = 0x800,
763 PostTransportOverWrite = 0x1000,
764 PostTransportSpeed = 0x2000,
765 PostTransportAudition = 0x4000,
766 PostTransportScrub = 0x8000,
767 PostTransportReverse = 0x10000,
768 PostTransportInputChange = 0x20000,
769 PostTransportCurveRealloc = 0x40000,
770 PostTransportClearSubstate = 0x80000,
771 PostTransportAdjustPlaybackBuffering = 0x100000,
772 PostTransportAdjustCaptureBuffering = 0x200000
781 SlaveState slave_state() const { return _slave_state; }
783 boost::shared_ptr<SessionPlaylists> playlists;
785 void send_mmc_locate (framepos_t);
786 int send_full_time_code (framepos_t);
788 PBD::Signal0<void> RouteOrderKeyChanged;
790 bool step_editing() const { return (_step_editors > 0); }
792 void request_suspend_timecode_transmission ();
793 void request_resume_timecode_transmission ();
794 bool timecode_transmission_suspended () const;
796 std::string source_search_path(DataType) const;
797 void ensure_search_path_includes (const std::string& path, DataType type);
799 std::list<std::string> unknown_processors () const;
801 /* handlers can return an integer value:
802 0: config.set_audio_search_path() or config.set_midi_search_path() was used
803 to modify the search path and we should try to find it again.
804 1: quit entire session load
805 2: as 0, but don't ask about other missing files
806 3: don't ask about other missing files, and just mark this one missing
807 -1: just mark this one missing
808 any other value: as -1
810 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
812 /** Emitted when the session wants Ardour to quit */
813 static PBD::Signal0<void> Quit;
816 friend class AudioEngine;
817 void set_block_size (pframes_t nframes);
818 void set_frame_rate (framecnt_t nframes);
822 void schedule_curve_reallocation ();
823 void update_latency_compensation (bool force = false);
826 int create (const std::string& mix_template, BusProfile*);
830 PendingDeclickIn = 0x1,
831 PendingDeclickOut = 0x2,
832 StopPendingCapture = 0x4,
833 PendingLocate = 0x20,
836 /* stuff used in process() should be close together to
840 typedef void (Session::*process_function_type)(pframes_t);
842 AudioEngine& _engine;
843 mutable gint processing_prohibited;
844 process_function_type process_function;
845 process_function_type last_process_function;
846 bool waiting_for_sync_offset;
847 framecnt_t _base_frame_rate;
848 framecnt_t _current_frame_rate; //this includes video pullup offset
849 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
850 int transport_sub_state;
851 mutable gint _record_status;
852 framepos_t _transport_frame;
853 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
857 void maybe_update_session_range (framepos_t, framepos_t);
859 // varispeed playback
860 double _transport_speed;
861 double _last_transport_speed;
862 double _target_transport_speed;
863 CubicInterpolation interpolation;
865 bool auto_play_legal;
866 framepos_t _last_slave_transport_frame;
867 framecnt_t maximum_output_latency;
868 framepos_t _requested_return_frame;
869 pframes_t current_block_size;
870 framecnt_t _worst_output_latency;
871 framecnt_t _worst_input_latency;
872 framecnt_t _worst_track_latency;
875 float _meter_falloff;
876 bool _non_soloed_outs_muted;
877 uint32_t _listen_cnt;
878 uint32_t _solo_isolated_cnt;
882 void set_worst_io_latencies ();
883 void set_worst_playback_latency ();
884 void set_worst_capture_latency ();
885 void set_worst_io_latencies_x (IOChange, void *) {
886 set_worst_io_latencies ();
888 void post_capture_latency ();
889 void post_playback_latency ();
891 void update_latency_compensation_proxy (void* ignored);
893 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
895 void process_scrub (pframes_t);
896 void process_without_events (pframes_t);
897 void process_with_events (pframes_t);
898 void process_audition (pframes_t);
899 void process_export (pframes_t);
900 int process_export_fw (pframes_t);
902 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
903 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
904 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
906 Glib::Mutex process_thread_lock;
907 std::list<ProcessThread*> process_threads;
911 static const int delta_accumulator_size = 25;
912 int delta_accumulator_cnt;
913 int32_t delta_accumulator[delta_accumulator_size];
914 int32_t average_slave_delta;
916 bool have_first_delta_accumulator;
918 SlaveState _slave_state;
919 framepos_t slave_wait_end;
921 void reset_slave_state ();
922 bool follow_slave (pframes_t);
923 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
924 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
925 void follow_slave_silently (pframes_t nframes, float slave_speed);
927 void switch_to_sync_source (SyncSource); /* !RT context */
928 void drop_sync_source (); /* !RT context */
929 void use_sync_source (Slave*); /* RT context */
931 bool post_export_sync;
932 framepos_t post_export_position;
935 bool _export_rolling;
937 boost::shared_ptr<ExportHandler> export_handler;
938 boost::shared_ptr<ExportStatus> export_status;
941 int stop_audio_export ();
942 void finalize_audio_export ();
944 PBD::ScopedConnection export_freewheel_connection;
946 void get_track_statistics ();
947 int process_routes (pframes_t, bool& need_butler);
948 int silent_process_routes (pframes_t, bool& need_butler);
950 bool get_rec_monitors_input () {
951 if (actively_recording()) {
954 if (config.get_auto_input()) {
962 int get_transport_declick_required () {
963 if (transport_sub_state & PendingDeclickIn) {
964 transport_sub_state &= ~PendingDeclickIn;
966 } else if (transport_sub_state & PendingDeclickOut) {
973 bool maybe_stop (framepos_t limit);
974 bool maybe_sync_start (pframes_t &);
976 void check_declick_out ();
982 /** Number of process frames since the last MTC output (when sending MTC); used to
983 * know when to send full MTC messages every so often.
985 pframes_t _pframes_since_last_mtc;
986 bool session_midi_feedback;
989 framepos_t last_loopend;
991 boost::scoped_ptr<SessionDirectory> _session_dir;
994 void when_engine_running ();
995 void graph_reordered ();
997 std::string _current_snapshot_name;
1000 bool state_was_pending;
1001 StateOfTheState _state_of_the_state;
1004 int load_options (const XMLNode&);
1005 int load_state (std::string snapshot_name);
1007 framepos_t _last_roll_location;
1008 framepos_t _last_roll_or_reversal_location;
1009 framepos_t _last_record_location;
1011 bool pending_locate_roll;
1012 framepos_t pending_locate_frame;
1013 bool pending_locate_flush;
1015 bool pending_auto_loop;
1019 #if 0 // these should be here, see comments in their other location above
1020 enum PostTransportWork {
1021 PostTransportStop = 0x1,
1022 PostTransportDisableRecord = 0x2,
1023 PostTransportPosition = 0x8,
1024 PostTransportDidRecord = 0x20,
1025 PostTransportDuration = 0x40,
1026 PostTransportLocate = 0x80,
1027 PostTransportRoll = 0x200,
1028 PostTransportAbort = 0x800,
1029 PostTransportOverWrite = 0x1000,
1030 PostTransportSpeed = 0x2000,
1031 PostTransportAudition = 0x4000,
1032 PostTransportScrub = 0x8000,
1033 PostTransportReverse = 0x10000,
1034 PostTransportInputChange = 0x20000,
1035 PostTransportCurveRealloc = 0x40000,
1036 PostTransportClearSubstate = 0x80000
1039 static const PostTransportWork ProcessCannotProceedMask =
1041 PostTransportInputChange|
1043 PostTransportReverse|
1044 PostTransportCurveRealloc|
1046 PostTransportAudition|
1047 PostTransportLocate|
1049 PostTransportClearSubstate);
1051 gint _post_transport_work; /* accessed only atomic ops */
1052 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (&_post_transport_work); }
1053 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1054 void add_post_transport_work (PostTransportWork ptw);
1056 void schedule_playback_buffering_adjustment ();
1057 void schedule_capture_buffering_adjustment ();
1059 uint32_t cumulative_rf_motion;
1062 void set_rf_speed (float speed);
1063 void reset_rf_scale (framecnt_t frames_moved);
1065 Locations* _locations;
1066 void locations_changed ();
1067 void locations_added (Location*);
1068 void handle_locations_changed (Locations::LocationList&);
1070 PBD::ScopedConnectionList punch_connections;
1071 void auto_punch_start_changed (Location *);
1072 void auto_punch_end_changed (Location *);
1073 void auto_punch_changed (Location *);
1075 PBD::ScopedConnectionList loop_connections;
1076 void auto_loop_changed (Location *);
1078 void first_stage_init (std::string path, std::string snapshot_name);
1079 int second_stage_init ();
1080 void remove_empty_sounds ();
1082 void setup_midi_control ();
1083 int midi_read (MIDI::Port *);
1085 void enable_record ();
1087 void increment_transport_position (framecnt_t val) {
1088 if (max_framepos - val < _transport_frame) {
1089 _transport_frame = max_framepos;
1091 _transport_frame += val;
1095 void decrement_transport_position (framecnt_t val) {
1096 if (val < _transport_frame) {
1097 _transport_frame -= val;
1099 _transport_frame = 0;
1103 void post_transport_motion ();
1104 static void *session_loader_thread (void *arg);
1108 /* SessionEventManager interface */
1110 void process_event (SessionEvent*);
1111 void set_next_event ();
1112 void cleanup_event (SessionEvent*,int);
1114 /* MIDI Machine Control */
1116 void spp_start (MIDI::Parser&, framepos_t timestamp);
1117 void spp_continue (MIDI::Parser&, framepos_t timestamp);
1118 void spp_stop (MIDI::Parser&, framepos_t timestamp);
1120 void mmc_deferred_play (MIDI::MachineControl &);
1121 void mmc_stop (MIDI::MachineControl &);
1122 void mmc_step (MIDI::MachineControl &, int);
1123 void mmc_pause (MIDI::MachineControl &);
1124 void mmc_record_pause (MIDI::MachineControl &);
1125 void mmc_record_strobe (MIDI::MachineControl &);
1126 void mmc_record_exit (MIDI::MachineControl &);
1127 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1128 void mmc_fast_forward (MIDI::MachineControl &);
1129 void mmc_rewind (MIDI::MachineControl &);
1130 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1131 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1132 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1134 struct timeval last_mmc_step;
1137 typedef boost::function<bool()> MidiTimeoutCallback;
1138 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1140 MidiTimeoutList midi_timeouts;
1141 bool mmc_step_timeout ();
1143 MIDI::byte mtc_msg[16];
1144 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1145 MIDI::byte midi_msg[16];
1146 framepos_t outbound_mtc_timecode_frame;
1147 Timecode::Time transmitting_timecode_time;
1148 int next_quarter_frame_to_send;
1150 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1151 framecnt_t _frames_per_hour;
1152 framecnt_t _timecode_frames_per_hour;
1154 /* cache the most-recently requested time conversions. This helps when we
1155 * have multiple clocks showing the same time (e.g. the transport frame) */
1156 bool last_timecode_valid;
1157 framepos_t last_timecode_when;
1158 Timecode::Time last_timecode;
1160 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1162 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1164 void reset_record_status ();
1166 int no_roll (pframes_t nframes);
1167 int fail_roll (pframes_t nframes);
1169 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1170 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1172 MidiControlUI* midi_control_ui;
1174 int start_midi_thread ();
1175 void terminate_midi_thread ();
1177 void set_play_loop (bool yn);
1178 void unset_play_loop ();
1179 void overwrite_some_buffers (Track *);
1180 void flush_all_inserts ();
1181 int micro_locate (framecnt_t distance);
1182 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1183 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1184 void force_locate (framepos_t frame, bool with_roll = false);
1185 void set_track_speed (Track *, double speed);
1186 void set_transport_speed (double speed, bool abort = false, bool clear_state = false);
1187 void stop_transport (bool abort = false, bool clear_state = false);
1188 void start_transport ();
1189 void realtime_stop (bool abort, bool clear_state);
1190 void non_realtime_start_scrub ();
1191 void non_realtime_set_speed ();
1192 void non_realtime_locate ();
1193 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1194 void non_realtime_overwrite (int entry_request_count, bool& finished);
1195 void post_transport ();
1196 void engine_halted ();
1197 void xrun_recovery ();
1199 TempoMap *_tempo_map;
1200 void tempo_map_changed (const PBD::PropertyChange&);
1202 /* edit/mix groups */
1204 int load_route_groups (const XMLNode&, int);
1206 std::list<RouteGroup *> _route_groups;
1207 RouteGroup* _all_route_group;
1211 boost::shared_ptr<Graph> route_graph;
1213 SerializedRCUManager<RouteList> routes;
1215 void add_routes (RouteList&, bool auto_connect, bool save);
1216 uint32_t destructive_index;
1218 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1219 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1221 void route_processors_changed (RouteProcessorChange);
1223 bool find_route_name (std::string const &, uint32_t& id, char* name, size_t name_len, bool);
1224 void count_existing_route_channels (ChanCount& in, ChanCount& out);
1225 void auto_connect_route (Route*,
1226 ChanCount& existing_inputs,
1227 ChanCount& existing_outputs,
1229 bool connect_inputs = true,
1230 ChanCount input_start = ChanCount (),
1231 ChanCount output_start = ChanCount ());
1233 void auto_connect_route (boost::shared_ptr<Route> route,
1234 ChanCount& existing_inputs,
1235 ChanCount& existing_outputs,
1237 bool connect_inputs = true,
1238 ChanCount input_start = ChanCount (),
1239 ChanCount output_start = ChanCount ()) {
1240 auto_connect_route (route.get(), existing_inputs, existing_outputs, with_lock, connect_inputs, input_start, output_start);
1246 bool solo_update_disabled;
1248 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1249 void route_mute_changed (void *src);
1250 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1251 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1252 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1254 void listen_position_changed ();
1255 void solo_control_mode_changed ();
1257 /* REGION MANAGEMENT */
1259 mutable Glib::Mutex region_lock;
1261 int load_regions (const XMLNode& node);
1263 void route_group_changed ();
1267 mutable Glib::Mutex source_lock;
1270 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1276 SourceMap get_sources() { return sources; }
1279 int load_sources (const XMLNode& node);
1280 XMLNode& get_sources_as_xml ();
1282 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1286 void remove_playlist (boost::weak_ptr<Playlist>);
1287 void track_playlist_changed (boost::weak_ptr<Track>);
1288 void playlist_region_added (boost::weak_ptr<Region>);
1289 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1290 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1292 /* NAMED SELECTIONS */
1294 mutable Glib::Mutex named_selection_lock;
1295 typedef std::set<boost::shared_ptr<NamedSelection> > NamedSelectionList;
1296 NamedSelectionList named_selections;
1298 int load_named_selections (const XMLNode&);
1300 NamedSelection *named_selection_factory (std::string name);
1301 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1303 /* CURVES and AUTOMATION LISTS */
1304 std::map<PBD::ID, AutomationList*> automation_lists;
1306 /* DEFAULT FADE CURVES */
1308 float default_fade_steepness;
1309 float default_fade_msecs;
1313 boost::shared_ptr<Auditioner> auditioner;
1314 void set_audition (boost::shared_ptr<Region>);
1315 void non_realtime_set_audition ();
1316 boost::shared_ptr<Region> pending_audition_region;
1322 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1324 /* INSERT AND SEND MANAGEMENT */
1326 boost::dynamic_bitset<uint32_t> send_bitset;
1327 boost::dynamic_bitset<uint32_t> return_bitset;
1328 boost::dynamic_bitset<uint32_t> insert_bitset;
1332 struct space_and_path {
1333 uint32_t blocks; /* 4kB blocks */
1341 struct space_and_path_ascending_cmp {
1342 bool operator() (space_and_path a, space_and_path b) {
1343 return a.blocks > b.blocks;
1347 void setup_raid_path (std::string path);
1349 std::vector<space_and_path> session_dirs;
1350 std::vector<space_and_path>::iterator last_rr_session_dir;
1351 uint32_t _total_free_4k_blocks;
1352 Glib::Mutex space_lock;
1354 bool no_questions_about_missing_files;
1356 std::string get_best_session_directory_for_new_source ();
1358 mutable gint _playback_load;
1359 mutable gint _capture_load;
1363 SerializedRCUManager<BundleList> _bundles;
1364 XMLNode* _bundle_xml_node;
1365 int load_bundles (XMLNode const &);
1367 void reverse_track_buffers ();
1369 UndoHistory _history;
1370 /** current undo transaction, or 0 */
1371 UndoTransaction* _current_trans;
1372 /** GQuarks to describe the reversible commands that are currently in progress.
1373 * These may be nested, in which case more recently-started commands are toward
1374 * the front of the list.
1376 std::list<GQuark> _current_trans_quarks;
1378 void jack_timebase_callback (jack_transport_state_t, pframes_t, jack_position_t*, int);
1379 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1380 void reset_jack_connection (jack_client_t* jack);
1381 void process_rtop (SessionEvent*);
1383 void update_latency (bool playback);
1385 XMLNode& state(bool);
1391 boost::shared_ptr<IO> _click_io;
1393 Sample* click_emphasis_data;
1394 framecnt_t click_length;
1395 framecnt_t click_emphasis_length;
1396 mutable Glib::RWLock click_lock;
1398 static const Sample default_click[];
1399 static const framecnt_t default_click_length;
1400 static const Sample default_click_emphasis[];
1401 static const framecnt_t default_click_emphasis_length;
1404 void setup_click_sounds (int which);
1405 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1406 void clear_clicks ();
1407 void click (framepos_t start, framecnt_t nframes);
1409 std::vector<Route*> master_outs;
1411 /* range playback */
1413 std::list<AudioRange> current_audio_range;
1415 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1416 void unset_play_range ();
1421 boost::shared_ptr<Route> _master_out;
1422 boost::shared_ptr<Route> _monitor_out;
1426 long _vst_callback (VSTPlugin*,
1433 /* number of hardware ports we're using,
1434 based on max (requested,available)
1437 ChanCount n_physical_outputs;
1438 ChanCount n_physical_inputs;
1440 int find_all_sources (std::string path, std::set<std::string>& result);
1441 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1443 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1444 Glib::Mutex controllables_lock;
1445 Controllables controllables;
1447 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1449 void reset_native_file_format();
1450 bool first_file_data_format_reset;
1451 bool first_file_header_format_reset;
1453 void config_changed (std::string, bool);
1455 XMLNode& get_control_protocol_state ();
1457 void set_history_depth (uint32_t depth);
1458 void sync_order_keys ();
1460 static bool _disable_all_loaded_plugins;
1462 SessionMetadata * _metadata;
1464 mutable bool have_looped; ///< Used in ::audible_frame(*)
1466 void update_have_rec_enabled_track ();
1467 gint _have_rec_enabled_track;
1469 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1471 /* realtime "apply to set of routes" operations */
1472 SessionEvent* get_rt_event (
1473 boost::shared_ptr<RouteList> rl, bool yn,
1474 SessionEvent::RTeventCallback after, bool group_override,
1475 void (Session::*method) (boost::shared_ptr<RouteList>, bool, bool));
1477 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1478 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1479 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1480 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1481 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1482 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1484 /** temporary list of Diskstreams used only during load of 2.X sessions */
1485 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1487 void add_session_range_location (framepos_t, framepos_t);
1489 void setup_midi_machine_control ();
1491 void route_order_key_changed ();
1493 void step_edit_status_change (bool);
1494 uint32_t _step_editors;
1496 /** true if timecode transmission by the transport is suspended, otherwise false */
1497 mutable gint _suspend_timecode_transmission;
1499 void update_locations_after_tempo_map_change (Locations::LocationList &);
1501 void start_time_changed (framepos_t);
1502 void end_time_changed (framepos_t);
1504 void set_track_monitor_input_status (bool);
1506 boost::shared_ptr<Speakers> _speakers;
1509 } // namespace ARDOUR
1511 #endif /* __ardour_session_h__ */