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__
31 #include <boost/dynamic_bitset.hpp>
32 #include <boost/scoped_ptr.hpp>
33 #include <boost/weak_ptr.hpp>
34 #include <boost/utility.hpp>
36 #include <glibmm/thread.h>
38 #include "pbd/error.h"
40 #include "pbd/statefuldestructible.h"
41 #include "pbd/signals.h"
44 #include "midi++/types.h"
46 #include "timecode/time.h"
48 #include "ardour/ardour.h"
49 #include "ardour/click.h"
50 #include "ardour/chan_count.h"
51 #include "ardour/rc_configuration.h"
52 #include "ardour/session_configuration.h"
53 #include "ardour/session_event.h"
54 #include "ardour/location.h"
55 #include "ardour/interpolation.h"
56 #include "ardour/speakers.h"
58 #ifdef HAVE_JACK_SESSION
59 #include <jack/session.h>
74 class ControllableDescriptor;
84 class AudioFileSource;
104 class NamedSelection;
117 class SessionDirectory;
118 class SessionMetadata;
119 class SessionPlaylists;
128 extern void setup_enum_writer ();
130 class Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
139 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
140 the bus profile can be null if no master out bus is required.
143 Session (AudioEngine&,
144 const std::string& fullpath,
145 const std::string& snapshot_name,
146 BusProfile* bus_profile = 0,
147 std::string mix_template = "");
151 std::string path() const { return _path; }
152 std::string name() const { return _name; }
153 std::string snap_name() const { return _current_snapshot_name; }
154 std::string raid_path () const;
155 bool path_is_within_session (const std::string&);
157 void set_snap_name ();
159 bool writable() const { return _writable; }
162 bool dirty() const { return _state_of_the_state & Dirty; }
163 void set_deletion_in_progress ();
164 void clear_deletion_in_progress ();
165 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
166 PBD::Signal0<void> DirtyChanged;
168 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
170 static PBD::Signal0<void> AutoBindingOn;
171 static PBD::Signal0<void> AutoBindingOff;
173 static PBD::Signal1<void,std::string> Dialog;
175 std::string sound_dir (bool with_path = true) const;
176 std::string peak_dir () const;
177 std::string dead_sound_dir () const;
178 std::string automation_dir () const;
179 std::string analysis_dir() const;
180 std::string plugins_dir() const;
182 int ensure_subdirs ();
184 std::string peak_path (std::string) const;
186 std::string change_source_path_by_name (std::string oldpath, std::string oldname, std::string newname, bool destructive);
188 std::string peak_path_from_audio_path (std::string) const;
189 std::string new_audio_source_name (const std::string&, uint32_t nchans, uint32_t chan, bool destructive);
190 std::string new_midi_source_name (const std::string&);
191 std::string new_source_path_from_name (DataType type, const std::string&, bool as_stub = false);
192 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path);
194 void process (pframes_t nframes);
196 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
197 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
198 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
200 bool have_rec_enabled_track () const;
202 bool have_captured() const { return _have_captured; }
204 void refill_all_track_buffers ();
205 Butler* butler() { return _butler; }
206 void butler_transport_work ();
208 void refresh_disk_space ();
210 int load_diskstreams_2X (XMLNode const &, int);
212 int load_routes (const XMLNode&, int);
213 boost::shared_ptr<RouteList> get_routes() const {
214 return routes.reader ();
217 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
219 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
221 uint32_t nroutes() const { return routes.reader()->size(); }
222 uint32_t ntracks () const;
223 uint32_t nbusses () const;
225 boost::shared_ptr<BundleList> bundles () {
226 return _bundles.reader ();
229 struct RoutePublicOrderSorter {
230 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
233 void sync_order_keys (std::string const &);
235 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
236 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
237 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
239 bool io_name_is_legal (const std::string&);
240 boost::shared_ptr<Route> route_by_name (std::string);
241 boost::shared_ptr<Route> route_by_id (PBD::ID);
242 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
244 bool route_name_unique (std::string) const;
245 bool route_name_internal (std::string) const;
247 bool get_record_enabled() const {
248 return (record_status () >= Enabled);
251 RecordState record_status() const {
252 return (RecordState) g_atomic_int_get (&_record_status);
255 bool actively_recording () {
256 return record_status() == Recording;
259 bool record_enabling_legal () const;
260 void maybe_enable_record ();
261 void disable_record (bool rt_context, bool force = false);
262 void step_back_from_record ();
264 void maybe_write_autosave ();
266 /* Emitted when all i/o connections are complete */
268 PBD::Signal0<void> IOConnectionsComplete;
270 /* Record status signals */
272 PBD::Signal0<void> RecordStateChanged;
274 /* Transport mechanism signals */
276 PBD::Signal0<void> TransportStateChange; /* generic */
277 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
278 PBD::Signal1<void,framepos_t> Xrun;
279 PBD::Signal0<void> TransportLooped;
281 /** emitted when a locate has occurred */
282 PBD::Signal0<void> Located;
284 PBD::Signal1<void,RouteList&> RouteAdded;
285 /** Emitted when anything about any of our route groups changes */
286 PBD::Signal0<void> RouteGroupChanged;
288 /* Step Editing status changed */
289 PBD::Signal1<void,bool> StepEditStatusChange;
291 void queue_event (SessionEvent*);
293 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
294 void request_bounded_roll (framepos_t start, framepos_t end);
295 void request_stop (bool abort = false, bool clear_state = false);
296 void request_locate (framepos_t frame, bool with_roll = false);
298 void request_play_loop (bool yn, bool leave_rolling = false);
299 bool get_play_loop () const { return play_loop; }
301 framepos_t last_transport_start () const { return _last_roll_location; }
304 void use_rf_shuttle_speed ();
305 void allow_auto_play (bool yn);
306 void request_transport_speed (double speed);
307 void request_overwrite_buffer (Track *);
308 void adjust_playback_buffering();
309 void adjust_capture_buffering();
310 void request_track_speed (Track *, double speed);
311 void request_input_change_handling ();
313 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
314 bool transport_locked () const;
318 std::pair<framepos_t, framepos_t> get_extent () const;
319 framepos_t current_end_frame () const;
320 framepos_t current_start_frame () const;
321 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
322 framecnt_t frame_rate () const { return _current_frame_rate; }
323 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
324 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
325 framecnt_t frames_per_hour () const { return _frames_per_hour; }
327 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
328 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
330 MIDI::byte get_mtc_timecode_bits() const {
331 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
334 float timecode_frames_per_second() const;
335 bool timecode_drop_frames() const;
339 Locations *locations() { return _locations; }
341 PBD::Signal1<void,Location*> auto_loop_location_changed;
342 PBD::Signal1<void,Location*> auto_punch_location_changed;
343 PBD::Signal0<void> locations_modified;
345 void set_auto_punch_location (Location *);
346 void set_auto_loop_location (Location *);
347 int location_name(std::string& result, std::string base = std::string(""));
349 void reset_input_monitor_state ();
351 pframes_t get_block_size() const { return current_block_size; }
352 framecnt_t worst_output_latency () const { return _worst_output_latency; }
353 framecnt_t worst_input_latency () const { return _worst_input_latency; }
354 framecnt_t worst_track_latency () const { return _worst_track_latency; }
356 #ifdef HAVE_JACK_SESSION
357 void jack_session_event (jack_session_event_t* event);
359 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false);
360 int restore_state (std::string snapshot_name);
361 int save_template (std::string template_name);
362 int save_history (std::string snapshot_name = "");
363 int restore_history (std::string snapshot_name);
364 void remove_state (std::string snapshot_name);
365 void rename_state (std::string old_name, std::string new_name);
366 void remove_pending_capture_state ();
368 static int rename_template (std::string old_name, std::string new_name);
369 static int delete_template (std::string name);
371 PBD::Signal1<void,std::string> StateSaved;
372 PBD::Signal0<void> StateReady;
374 std::vector<std::string*>* possible_states() const;
375 static std::vector<std::string*>* possible_states (std::string path);
377 XMLNode& get_state();
378 int set_state(const XMLNode& node, int version); // not idempotent
379 XMLNode& get_template();
381 /// The instant xml file is written to the session directory
382 void add_instant_xml (XMLNode&, bool write_to_config = true);
383 XMLNode* instant_xml (const std::string& str);
385 enum StateOfTheState {
390 InitialConnecting = 0x8,
395 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
397 void add_route_group (RouteGroup *);
398 void remove_route_group (RouteGroup&);
400 RouteGroup* route_group_by_name (std::string);
401 RouteGroup& all_route_group() const;
403 PBD::Signal1<void,RouteGroup*> route_group_added;
404 PBD::Signal0<void> route_group_removed;
406 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
407 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
412 /* fundamental operations. duh. */
414 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
415 int input_channels, int output_channels, TrackMode mode = Normal, RouteGroup* route_group = 0, uint32_t how_many = 1
418 RouteList new_audio_route (bool aux, int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many);
420 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
421 TrackMode mode = Normal, RouteGroup* route_group = 0, uint32_t how_many = 1
424 void remove_route (boost::shared_ptr<Route>);
425 void resort_routes ();
426 void resort_routes_using (boost::shared_ptr<RouteList>);
428 void set_remote_control_ids();
430 AudioEngine & engine() { return _engine; }
431 AudioEngine const & engine () const { return _engine; }
435 framepos_t transport_frame () const {return _transport_frame; }
436 framepos_t audible_frame () const;
437 framepos_t requested_return_frame() const { return _requested_return_frame; }
451 void sync_time_vars();
453 void bbt_time (framepos_t when, Timecode::BBT_Time&);
454 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
455 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
456 void timecode_time (Timecode::Time &);
457 void timecode_time (framepos_t when, Timecode::Time&);
458 void timecode_time_subframes (framepos_t when, Timecode::Time&);
460 void timecode_duration (framecnt_t, Timecode::Time&) const;
461 void timecode_duration_string (char *, framecnt_t) const;
463 framecnt_t convert_to_frames (AnyTime const & position);
464 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
466 static PBD::Signal1<void, framepos_t> StartTimeChanged;
467 static PBD::Signal1<void, framepos_t> EndTimeChanged;
469 std::vector<SyncSource> get_available_sync_options() const;
470 void request_sync_source (Slave*);
471 bool synced_to_jack() const { return config.get_external_sync() && config.get_sync_source() == JACK; }
473 double transport_speed() const { return _transport_speed; }
474 bool transport_stopped() const { return _transport_speed == 0.0f; }
475 bool transport_rolling() const { return _transport_speed != 0.0f; }
477 void set_silent (bool yn);
478 bool silent () { return _silent; }
480 TempoMap& tempo_map() { return *_tempo_map; }
482 /// signals the current transport position in frames, bbt and timecode time (in that order)
483 PBD::Signal3<void, const framepos_t &, const Timecode::BBT_Time&, const Timecode::Time&> tick;
487 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
489 std::string path_from_region_name (DataType type, std::string name, std::string identifier);
491 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
492 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
493 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
495 /* source management */
497 void import_audiofiles (ImportStatus&);
498 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
499 std::string build_tmp_convert_name (std::string file);
501 boost::shared_ptr<ExportHandler> get_export_handler ();
502 boost::shared_ptr<ExportStatus> get_export_status ();
504 int start_audio_export (framepos_t position, bool realtime);
506 PBD::Signal1<int, framecnt_t> ProcessExport;
507 static PBD::Signal2<void,std::string, std::string> Exported;
509 void add_source (boost::shared_ptr<Source>);
510 void remove_source (boost::weak_ptr<Source>);
512 int cleanup_sources (CleanupReport&);
513 int cleanup_trash_sources (CleanupReport&);
515 int destroy_sources (std::list<boost::shared_ptr<Source> >);
517 int remove_last_capture ();
519 /** handlers should return -1 for "stop cleanup",
520 0 for "yes, delete this playlist",
521 1 for "no, don't delete this playlist".
523 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
525 /** handlers should return 0 for "ignore the rate mismatch",
526 !0 for "do not use this session"
528 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
530 /** handlers should return !0 for use pending state, 0 for ignore it.
532 static PBD::Signal0<int> AskAboutPendingState;
534 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
535 size_t, std::string const &, uint32_t, bool destructive, bool as_stub = false);
537 boost::shared_ptr<MidiSource> create_midi_source_for_session (
538 Track*, std::string const &, bool as_stub = false);
540 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
541 boost::shared_ptr<Source> source_by_path_and_channel (const std::string&, uint16_t);
542 uint32_t count_sources_by_origin (const std::string&);
544 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
546 /* named selections */
548 boost::shared_ptr<NamedSelection> named_selection_by_name (std::string name);
549 void add_named_selection (boost::shared_ptr<NamedSelection>);
550 void remove_named_selection (boost::shared_ptr<NamedSelection>);
552 template<class T> void foreach_named_selection (T& obj, void (T::*func)(boost::shared_ptr<NamedSelection>));
553 PBD::Signal0<void> NamedSelectionAdded;
554 PBD::Signal0<void> NamedSelectionRemoved;
556 /* Curves and AutomationLists (TODO when they go away) */
557 void add_automation_list(AutomationList*);
561 float get_default_fade_length () const { return default_fade_msecs; }
562 float get_default_fade_steepness () const { return default_fade_steepness; }
563 void set_default_fade (float steepness, float msecs);
567 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
568 void audition_playlist ();
569 void audition_region (boost::shared_ptr<Region>);
570 void cancel_audition ();
571 bool is_auditioning () const;
573 PBD::Signal1<void,bool> AuditionActive;
575 /* flattening stuff */
577 boost::shared_ptr<Region> write_one_track (AudioTrack&, framepos_t start, framepos_t end,
578 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
579 bool enable_processing = true);
580 int freeze_all (InterThreadInfo&);
582 /* session-wide solo/mute/rec-enable */
584 bool soloing() const { return _non_soloed_outs_muted; }
585 bool listening() const { return _listen_cnt > 0; }
586 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
588 static const SessionEvent::RTeventCallback rt_cleanup;
590 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
591 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
592 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
593 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
594 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
595 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
597 PBD::Signal1<void,bool> SoloActive;
598 PBD::Signal0<void> SoloChanged;
599 PBD::Signal0<void> IsolatedChanged;
601 /* control/master out */
603 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
604 boost::shared_ptr<Route> master_out() const { return _master_out; }
606 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
607 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
608 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
609 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
610 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
612 static void set_disable_all_loaded_plugins (bool yn) {
613 _disable_all_loaded_plugins = yn;
615 static bool get_disable_all_loaded_plugins() {
616 return _disable_all_loaded_plugins;
619 uint32_t next_send_id();
620 uint32_t next_return_id();
621 uint32_t next_insert_id();
622 void mark_send_id (uint32_t);
623 void mark_return_id (uint32_t);
624 void mark_insert_id (uint32_t);
625 void unmark_send_id (uint32_t);
626 void unmark_return_id (uint32_t);
627 void unmark_insert_id (uint32_t);
629 /* s/w "RAID" management */
631 framecnt_t available_capture_duration();
635 void add_bundle (boost::shared_ptr<Bundle>);
636 void remove_bundle (boost::shared_ptr<Bundle>);
637 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
639 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleAdded;
640 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleRemoved;
644 /* History (for editors, mixers, UIs etc.) */
646 /** Undo some transactions.
647 * @param n Number of transactions to undo.
649 void undo (uint32_t n) {
653 void redo (uint32_t n) {
657 UndoHistory& history() { return _history; }
659 uint32_t undo_depth() const { return _history.undo_depth(); }
660 uint32_t redo_depth() const { return _history.redo_depth(); }
661 std::string next_undo() const { return _history.next_undo(); }
662 std::string next_redo() const { return _history.next_redo(); }
664 void begin_reversible_command (const std::string& cmd_name);
665 void commit_reversible_command (Command* cmd = 0);
667 UndoTransaction* start_reversible_command (const std::string& cmd_name);
668 void finish_reversible_command (UndoTransaction&);
670 void add_command (Command *const cmd) {
671 assert(!_current_trans.empty ());
672 _current_trans.top()->add_command (cmd);
675 void add_commands (std::vector<Command*> const & cmds);
677 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
679 // these commands are implemented in libs/ardour/session_command.cc
680 Command* memento_command_factory(XMLNode* n);
681 Command* stateful_diff_command_factory (XMLNode *);
682 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
686 boost::shared_ptr<IO> click_io() { return _click_io; }
688 /* disk, buffer loads */
690 uint32_t playback_load ();
691 uint32_t capture_load ();
695 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
696 bool get_play_range () const { return _play_range; }
698 /* buffers for gain and pan */
700 gain_t* gain_automation_buffer () const;
701 pan_t** pan_automation_buffer () const;
703 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
707 static long vst_callback (AEffect* effect,
714 static PBD::Signal0<void> SendFeedback;
718 Speakers& get_speakers ();
722 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
723 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
725 void add_controllable (boost::shared_ptr<PBD::Controllable>);
726 void remove_controllable (PBD::Controllable*);
728 SessionMetadata & metadata () { return *_metadata; }
730 SessionConfiguration config;
732 bool exporting () const {
736 /* this is a private enum, but setup_enum_writer() needs it,
737 and i can't find a way to give that function
741 enum PostTransportWork {
742 PostTransportStop = 0x1,
743 PostTransportDisableRecord = 0x2,
744 PostTransportPosition = 0x8,
745 PostTransportDidRecord = 0x20,
746 PostTransportDuration = 0x40,
747 PostTransportLocate = 0x80,
748 PostTransportRoll = 0x200,
749 PostTransportAbort = 0x800,
750 PostTransportOverWrite = 0x1000,
751 PostTransportSpeed = 0x2000,
752 PostTransportAudition = 0x4000,
753 PostTransportScrub = 0x8000,
754 PostTransportReverse = 0x10000,
755 PostTransportInputChange = 0x20000,
756 PostTransportCurveRealloc = 0x40000,
757 PostTransportClearSubstate = 0x80000,
758 PostTransportAdjustPlaybackBuffering = 0x100000,
759 PostTransportAdjustCaptureBuffering = 0x200000
768 SlaveState slave_state() const { return _slave_state; }
770 boost::shared_ptr<SessionPlaylists> playlists;
772 void send_mmc_locate (framepos_t);
773 int send_full_time_code (framepos_t);
775 PBD::Signal0<void> RouteOrderKeyChanged;
777 bool step_editing() const { return (_step_editors > 0); }
779 void request_suspend_timecode_transmission ();
780 void request_resume_timecode_transmission ();
781 bool timecode_transmission_suspended () const;
783 std::string source_search_path(DataType) const;
784 void ensure_search_path_includes (const std::string& path, DataType type);
786 std::list<std::string> unknown_processors () const;
788 /* handlers can return an integer value:
789 0: config.set_audio_search_path() or config.set_midi_search_path() was used
790 to modify the search path and we should try to find it again.
791 1: quit entire session load
792 2: as 0, but don't ask about other missing files
793 3: don't ask about other missing files, and just mark this one missing
794 -1: just mark this one missing
795 any other value: as -1
797 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
799 /** Emitted when the session wants Ardour to quit */
800 static PBD::Signal0<void> Quit;
803 friend class AudioEngine;
804 void set_block_size (pframes_t nframes);
805 void set_frame_rate (framecnt_t nframes);
809 void schedule_curve_reallocation ();
810 void update_latency_compensation (bool, bool);
813 int create (const std::string& mix_template, BusProfile*);
817 PendingDeclickIn = 0x1,
818 PendingDeclickOut = 0x2,
819 StopPendingCapture = 0x4,
820 PendingLocate = 0x20,
823 /* stuff used in process() should be close together to
827 typedef void (Session::*process_function_type)(pframes_t);
829 AudioEngine& _engine;
830 mutable gint processing_prohibited;
831 process_function_type process_function;
832 process_function_type last_process_function;
833 bool waiting_for_sync_offset;
834 framecnt_t _base_frame_rate;
835 framecnt_t _current_frame_rate; //this includes video pullup offset
836 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
837 int transport_sub_state;
838 mutable gint _record_status;
839 framepos_t _transport_frame;
840 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
844 // varispeed playback
845 double _transport_speed;
846 double _last_transport_speed;
847 double _target_transport_speed;
848 CubicInterpolation interpolation;
850 bool auto_play_legal;
851 framepos_t _last_slave_transport_frame;
852 framecnt_t maximum_output_latency;
853 framepos_t _requested_return_frame;
854 pframes_t current_block_size;
855 framecnt_t _worst_output_latency;
856 framecnt_t _worst_input_latency;
857 framecnt_t _worst_track_latency;
860 float _meter_falloff;
861 bool _non_soloed_outs_muted;
862 uint32_t _listen_cnt;
863 uint32_t _solo_isolated_cnt;
867 void set_worst_io_latencies ();
868 void set_worst_io_latencies_x (IOChange, void *) {
869 set_worst_io_latencies ();
872 void update_latency_compensation_proxy (void* ignored);
874 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
876 void process_scrub (pframes_t);
877 void process_without_events (pframes_t);
878 void process_with_events (pframes_t);
879 void process_audition (pframes_t);
880 void process_export (pframes_t);
881 int process_export_fw (pframes_t);
883 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
884 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
885 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
887 Glib::Mutex process_thread_lock;
888 std::list<ProcessThread*> process_threads;
892 static const int delta_accumulator_size = 25;
893 int delta_accumulator_cnt;
894 int32_t delta_accumulator[delta_accumulator_size];
895 int32_t average_slave_delta;
897 bool have_first_delta_accumulator;
899 SlaveState _slave_state;
900 framepos_t slave_wait_end;
902 void reset_slave_state ();
903 bool follow_slave (pframes_t);
904 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
905 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
906 void follow_slave_silently (pframes_t nframes, float slave_speed);
908 void switch_to_sync_source (SyncSource); /* !RT context */
909 void drop_sync_source (); /* !RT context */
910 void use_sync_source (Slave*); /* RT context */
912 bool post_export_sync;
913 framepos_t post_export_position;
916 bool _export_rolling;
918 boost::shared_ptr<ExportHandler> export_handler;
919 boost::shared_ptr<ExportStatus> export_status;
922 int stop_audio_export ();
923 void finalize_audio_export ();
925 PBD::ScopedConnection export_freewheel_connection;
927 void get_track_statistics ();
928 int process_routes (pframes_t, bool& need_butler);
929 int silent_process_routes (pframes_t, bool& need_butler);
931 bool get_rec_monitors_input () {
932 if (actively_recording()) {
935 if (config.get_auto_input()) {
943 int get_transport_declick_required () {
944 if (transport_sub_state & PendingDeclickIn) {
945 transport_sub_state &= ~PendingDeclickIn;
947 } else if (transport_sub_state & PendingDeclickOut) {
954 bool maybe_stop (framepos_t limit);
955 bool maybe_sync_start (pframes_t &);
957 void check_declick_out ();
962 bool session_send_mtc;
963 bool session_midi_feedback;
966 framepos_t last_loopend;
968 boost::scoped_ptr<SessionDirectory> _session_dir;
971 void when_engine_running ();
972 void graph_reordered ();
974 std::string _current_snapshot_name;
977 bool state_was_pending;
978 StateOfTheState _state_of_the_state;
981 int load_options (const XMLNode&);
982 int load_state (std::string snapshot_name);
984 framepos_t _last_roll_location;
985 framepos_t _last_roll_or_reversal_location;
986 framepos_t _last_record_location;
988 bool pending_locate_roll;
989 framepos_t pending_locate_frame;
990 bool pending_locate_flush;
992 bool pending_auto_loop;
996 #if 0 // these should be here, see comments in their other location above
997 enum PostTransportWork {
998 PostTransportStop = 0x1,
999 PostTransportDisableRecord = 0x2,
1000 PostTransportPosition = 0x8,
1001 PostTransportDidRecord = 0x20,
1002 PostTransportDuration = 0x40,
1003 PostTransportLocate = 0x80,
1004 PostTransportRoll = 0x200,
1005 PostTransportAbort = 0x800,
1006 PostTransportOverWrite = 0x1000,
1007 PostTransportSpeed = 0x2000,
1008 PostTransportAudition = 0x4000,
1009 PostTransportScrub = 0x8000,
1010 PostTransportReverse = 0x10000,
1011 PostTransportInputChange = 0x20000,
1012 PostTransportCurveRealloc = 0x40000,
1013 PostTransportClearSubstate = 0x80000
1016 static const PostTransportWork ProcessCannotProceedMask =
1018 PostTransportInputChange|
1020 PostTransportReverse|
1021 PostTransportCurveRealloc|
1023 PostTransportAudition|
1024 PostTransportLocate|
1026 PostTransportClearSubstate);
1028 gint _post_transport_work; /* accessed only atomic ops */
1029 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (&_post_transport_work); }
1030 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1031 void add_post_transport_work (PostTransportWork ptw);
1033 void schedule_playback_buffering_adjustment ();
1034 void schedule_capture_buffering_adjustment ();
1036 uint32_t cumulative_rf_motion;
1039 void set_rf_speed (float speed);
1040 void reset_rf_scale (framecnt_t frames_moved);
1042 Locations* _locations;
1043 void locations_changed ();
1044 void locations_added (Location*);
1045 void handle_locations_changed (Locations::LocationList&);
1047 PBD::ScopedConnectionList punch_connections;
1048 void auto_punch_start_changed (Location *);
1049 void auto_punch_end_changed (Location *);
1050 void auto_punch_changed (Location *);
1052 PBD::ScopedConnectionList loop_connections;
1053 void auto_loop_changed (Location *);
1055 void first_stage_init (std::string path, std::string snapshot_name);
1056 int second_stage_init ();
1057 void update_session_range_location_marker ();
1058 void remove_empty_sounds ();
1060 void setup_midi_control ();
1061 int midi_read (MIDI::Port *);
1063 void enable_record ();
1065 void increment_transport_position (framecnt_t val) {
1066 if (max_framepos - val < _transport_frame) {
1067 _transport_frame = max_framepos;
1069 _transport_frame += val;
1073 void decrement_transport_position (framecnt_t val) {
1074 if (val < _transport_frame) {
1075 _transport_frame -= val;
1077 _transport_frame = 0;
1081 void post_transport_motion ();
1082 static void *session_loader_thread (void *arg);
1086 /* SessionEventManager interface */
1088 void process_event (SessionEvent*);
1089 void set_next_event ();
1090 void cleanup_event (SessionEvent*,int);
1092 /* MIDI Machine Control */
1094 void spp_start (MIDI::Parser&, framepos_t timestamp);
1095 void spp_continue (MIDI::Parser&, framepos_t timestamp);
1096 void spp_stop (MIDI::Parser&, framepos_t timestamp);
1098 void mmc_deferred_play (MIDI::MachineControl &);
1099 void mmc_stop (MIDI::MachineControl &);
1100 void mmc_step (MIDI::MachineControl &, int);
1101 void mmc_pause (MIDI::MachineControl &);
1102 void mmc_record_pause (MIDI::MachineControl &);
1103 void mmc_record_strobe (MIDI::MachineControl &);
1104 void mmc_record_exit (MIDI::MachineControl &);
1105 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1106 void mmc_fast_forward (MIDI::MachineControl &);
1107 void mmc_rewind (MIDI::MachineControl &);
1108 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1109 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1110 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1112 struct timeval last_mmc_step;
1115 typedef boost::function<bool()> MidiTimeoutCallback;
1116 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1118 MidiTimeoutList midi_timeouts;
1119 bool mmc_step_timeout ();
1121 MIDI::byte mtc_msg[16];
1122 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1123 MIDI::byte midi_msg[16];
1124 framepos_t outbound_mtc_timecode_frame;
1125 Timecode::Time transmitting_timecode_time;
1126 int next_quarter_frame_to_send;
1128 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1129 framecnt_t _frames_per_hour;
1130 framecnt_t _timecode_frames_per_hour;
1132 /* cache the most-recently requested time conversions. This helps when we
1133 * have multiple clocks showing the same time (e.g. the transport frame) */
1134 bool last_timecode_valid;
1135 framepos_t last_timecode_when;
1136 Timecode::Time last_timecode;
1138 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1140 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1142 void reset_record_status ();
1144 int no_roll (pframes_t nframes);
1145 int fail_roll (pframes_t nframes);
1147 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1148 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1150 MidiControlUI* midi_control_ui;
1152 int start_midi_thread ();
1153 void terminate_midi_thread ();
1155 void set_play_loop (bool yn);
1156 void unset_play_loop ();
1157 void overwrite_some_buffers (Track *);
1158 void flush_all_inserts ();
1159 int micro_locate (framecnt_t distance);
1160 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1161 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1162 void force_locate (framepos_t frame, bool with_roll = false);
1163 void set_track_speed (Track *, double speed);
1164 void set_transport_speed (double speed, bool abort = false, bool clear_state = false);
1165 void stop_transport (bool abort = false, bool clear_state = false);
1166 void start_transport ();
1167 void realtime_stop (bool abort, bool clear_state);
1168 void non_realtime_start_scrub ();
1169 void non_realtime_set_speed ();
1170 void non_realtime_locate ();
1171 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1172 void non_realtime_overwrite (int entry_request_count, bool& finished);
1173 void post_transport ();
1174 void engine_halted ();
1175 void xrun_recovery ();
1177 TempoMap *_tempo_map;
1178 void tempo_map_changed (const PBD::PropertyChange&);
1180 /* edit/mix groups */
1182 int load_route_groups (const XMLNode&, int);
1184 std::list<RouteGroup *> _route_groups;
1185 RouteGroup* _all_route_group;
1189 boost::shared_ptr<Graph> route_graph;
1191 SerializedRCUManager<RouteList> routes;
1193 void add_routes (RouteList&, bool save);
1194 uint32_t destructive_index;
1196 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1197 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1199 void route_processors_changed (RouteProcessorChange);
1201 bool find_route_name (const char* base, uint32_t& id, char* name, size_t name_len);
1202 void count_existing_route_channels (ChanCount& in, ChanCount& out);
1203 void auto_connect_route (
1205 ChanCount& existing_inputs,
1206 ChanCount& existing_outputs,
1207 bool connect_inputs = true,
1208 ChanCount input_start = ChanCount (),
1209 ChanCount output_start = ChanCount ()
1214 bool solo_update_disabled;
1216 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1217 void route_mute_changed (void *src);
1218 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1219 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1220 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1222 void listen_position_changed ();
1223 void solo_control_mode_changed ();
1225 /* REGION MANAGEMENT */
1227 mutable Glib::Mutex region_lock;
1229 int load_regions (const XMLNode& node);
1231 void route_group_changed ();
1235 mutable Glib::Mutex source_lock;
1238 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1244 SourceMap get_sources() { return sources; }
1247 int load_sources (const XMLNode& node);
1248 XMLNode& get_sources_as_xml ();
1250 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1254 void remove_playlist (boost::weak_ptr<Playlist>);
1255 void track_playlist_changed (boost::weak_ptr<Track>);
1257 /* NAMED SELECTIONS */
1259 mutable Glib::Mutex named_selection_lock;
1260 typedef std::set<boost::shared_ptr<NamedSelection> > NamedSelectionList;
1261 NamedSelectionList named_selections;
1263 int load_named_selections (const XMLNode&);
1265 NamedSelection *named_selection_factory (std::string name);
1266 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1268 /* CURVES and AUTOMATION LISTS */
1269 std::map<PBD::ID, AutomationList*> automation_lists;
1271 /* DEFAULT FADE CURVES */
1273 float default_fade_steepness;
1274 float default_fade_msecs;
1278 boost::shared_ptr<Auditioner> auditioner;
1279 void set_audition (boost::shared_ptr<Region>);
1280 void non_realtime_set_audition ();
1281 boost::shared_ptr<Region> pending_audition_region;
1287 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1289 /* INSERT AND SEND MANAGEMENT */
1291 boost::dynamic_bitset<uint32_t> send_bitset;
1292 boost::dynamic_bitset<uint32_t> return_bitset;
1293 boost::dynamic_bitset<uint32_t> insert_bitset;
1297 struct space_and_path {
1298 uint32_t blocks; /* 4kB blocks */
1306 struct space_and_path_ascending_cmp {
1307 bool operator() (space_and_path a, space_and_path b) {
1308 return a.blocks > b.blocks;
1312 void setup_raid_path (std::string path);
1314 std::vector<space_and_path> session_dirs;
1315 std::vector<space_and_path>::iterator last_rr_session_dir;
1316 uint32_t _total_free_4k_blocks;
1317 Glib::Mutex space_lock;
1319 bool no_questions_about_missing_files;
1321 std::string get_best_session_directory_for_new_source ();
1323 mutable gint _playback_load;
1324 mutable gint _capture_load;
1328 SerializedRCUManager<BundleList> _bundles;
1329 XMLNode* _bundle_xml_node;
1330 int load_bundles (XMLNode const &);
1332 void reverse_track_buffers ();
1334 UndoHistory _history;
1335 std::stack<UndoTransaction*> _current_trans;
1337 void jack_timebase_callback (jack_transport_state_t, pframes_t, jack_position_t*, int);
1338 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1339 void reset_jack_connection (jack_client_t* jack);
1340 void process_rtop (SessionEvent*);
1342 XMLNode& state(bool);
1348 boost::shared_ptr<IO> _click_io;
1350 Sample* click_emphasis_data;
1351 framecnt_t click_length;
1352 framecnt_t click_emphasis_length;
1353 mutable Glib::RWLock click_lock;
1355 static const Sample default_click[];
1356 static const framecnt_t default_click_length;
1357 static const Sample default_click_emphasis[];
1358 static const framecnt_t default_click_emphasis_length;
1361 void setup_click_sounds (int which);
1362 void clear_clicks ();
1363 void click (framepos_t start, framecnt_t nframes);
1365 std::vector<Route*> master_outs;
1367 /* range playback */
1369 std::list<AudioRange> current_audio_range;
1371 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1372 void unset_play_range ();
1377 boost::shared_ptr<Route> _master_out;
1378 boost::shared_ptr<Route> _monitor_out;
1382 long _vst_callback (VSTPlugin*,
1389 /* number of hardware ports we're using,
1390 based on max (requested,available)
1393 ChanCount n_physical_outputs;
1394 ChanCount n_physical_inputs;
1396 int find_all_sources (std::string path, std::set<std::string>& result);
1397 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1399 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1400 Glib::Mutex controllables_lock;
1401 Controllables controllables;
1403 void reset_native_file_format();
1404 bool first_file_data_format_reset;
1405 bool first_file_header_format_reset;
1407 void config_changed (std::string, bool);
1409 XMLNode& get_control_protocol_state ();
1411 void set_history_depth (uint32_t depth);
1412 void sync_order_keys ();
1414 static bool _disable_all_loaded_plugins;
1416 SessionMetadata * _metadata;
1418 mutable bool have_looped; ///< Used in ::audible_frame(*)
1420 void update_have_rec_enabled_track ();
1421 gint _have_rec_enabled_track;
1423 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1425 /* realtime "apply to set of routes" operations */
1426 SessionEvent* get_rt_event (
1427 boost::shared_ptr<RouteList> rl, bool yn,
1428 SessionEvent::RTeventCallback after, bool group_override,
1429 void (Session::*method) (boost::shared_ptr<RouteList>, bool, bool));
1431 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1432 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1433 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1434 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1435 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1436 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1438 /** temporary list of Diskstreams used only during load of 2.X sessions */
1439 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1441 void add_session_range_location (framepos_t, framepos_t);
1443 void setup_midi_machine_control ();
1444 void cleanup_stubfiles ();
1446 void route_order_key_changed ();
1448 void step_edit_status_change (bool);
1449 uint32_t _step_editors;
1451 /** true if timecode transmission by the transport is suspended, otherwise false */
1452 mutable gint _suspend_timecode_transmission;
1454 void update_locations_after_tempo_map_change (Locations::LocationList &);
1456 void start_time_changed (framepos_t);
1457 void end_time_changed (framepos_t);
1459 Speakers* _speakers;
1462 } // namespace ARDOUR
1464 #endif /* __ardour_session_h__ */