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 int ensure_subdirs ();
178 std::string automation_dir () const;
179 std::string analysis_dir() const;
180 std::string plugins_dir() const;
182 std::string peak_path (std::string) const;
184 std::string change_source_path_by_name (std::string oldpath, std::string oldname, std::string newname, bool destructive);
186 std::string peak_path_from_audio_path (std::string) const;
187 std::string new_audio_source_name (const std::string&, uint32_t nchans, uint32_t chan, bool destructive);
188 std::string new_midi_source_name (const std::string&);
189 std::string new_source_path_from_name (DataType type, const std::string&);
190 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path);
192 void process (pframes_t nframes);
194 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
195 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
196 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
198 bool have_rec_enabled_track () const;
200 bool have_captured() const { return _have_captured; }
202 void refill_all_track_buffers ();
203 Butler* butler() { return _butler; }
204 void butler_transport_work ();
206 void refresh_disk_space ();
208 int load_diskstreams_2X (XMLNode const &, int);
210 int load_routes (const XMLNode&, int);
211 boost::shared_ptr<RouteList> get_routes() const {
212 return routes.reader ();
215 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
217 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
219 uint32_t nroutes() const { return routes.reader()->size(); }
220 uint32_t ntracks () const;
221 uint32_t nbusses () const;
223 boost::shared_ptr<BundleList> bundles () {
224 return _bundles.reader ();
227 struct RoutePublicOrderSorter {
228 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
231 void sync_order_keys (std::string const &);
233 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
234 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
235 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
237 bool io_name_is_legal (const std::string&);
238 boost::shared_ptr<Route> route_by_name (std::string);
239 boost::shared_ptr<Route> route_by_id (PBD::ID);
240 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
241 void routes_using_input_from (const std::string& str, RouteList& rl);
243 bool route_name_unique (std::string) const;
244 bool route_name_internal (std::string) const;
246 bool get_record_enabled() const {
247 return (record_status () >= Enabled);
250 RecordState record_status() const {
251 return (RecordState) g_atomic_int_get (&_record_status);
254 bool actively_recording () const {
255 return record_status() == Recording;
258 bool record_enabling_legal () const;
259 void maybe_enable_record ();
260 void disable_record (bool rt_context, bool force = false);
261 void step_back_from_record ();
263 void maybe_write_autosave ();
265 /* Emitted when all i/o connections are complete */
267 PBD::Signal0<void> IOConnectionsComplete;
269 /* Record status signals */
271 PBD::Signal0<void> RecordStateChanged;
273 /* Transport mechanism signals */
275 /** Emitted on the following changes in transport state:
276 * - stop (from the butler thread)
277 * - change in whether or not we are looping (from the process thread)
278 * - change in the play range (from the process thread)
279 * - start (from the process thread)
282 PBD::Signal0<void> TransportStateChange;
284 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
285 PBD::Signal1<void,framepos_t> Xrun;
286 PBD::Signal0<void> TransportLooped;
288 /** emitted when a locate has occurred */
289 PBD::Signal0<void> Located;
291 PBD::Signal1<void,RouteList&> RouteAdded;
292 /** Emitted when anything about any of our route groups changes */
293 PBD::Signal0<void> RouteGroupChanged;
295 /* Step Editing status changed */
296 PBD::Signal1<void,bool> StepEditStatusChange;
298 void queue_event (SessionEvent*);
300 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
301 void request_bounded_roll (framepos_t start, framepos_t end);
302 void request_stop (bool abort = false, bool clear_state = false);
303 void request_locate (framepos_t frame, bool with_roll = false);
305 void request_play_loop (bool yn, bool leave_rolling = false);
306 bool get_play_loop () const { return play_loop; }
308 framepos_t last_transport_start () const { return _last_roll_location; }
311 void use_rf_shuttle_speed ();
312 void allow_auto_play (bool yn);
313 void request_transport_speed (double speed);
314 void request_transport_speed_nonzero (double);
315 void request_overwrite_buffer (Track *);
316 void adjust_playback_buffering();
317 void adjust_capture_buffering();
318 void request_track_speed (Track *, double speed);
319 void request_input_change_handling ();
321 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
322 bool transport_locked () const;
326 framepos_t current_end_frame () const;
327 framepos_t current_start_frame () const;
328 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
329 framecnt_t frame_rate () const { return _current_frame_rate; }
330 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
331 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
332 framecnt_t frames_per_hour () const { return _frames_per_hour; }
334 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
335 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
337 MIDI::byte get_mtc_timecode_bits() const {
338 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
341 float timecode_frames_per_second() const;
342 bool timecode_drop_frames() const;
346 Locations *locations() { return _locations; }
348 PBD::Signal1<void,Location*> auto_loop_location_changed;
349 PBD::Signal1<void,Location*> auto_punch_location_changed;
350 PBD::Signal0<void> locations_modified;
352 void set_auto_punch_location (Location *);
353 void set_auto_loop_location (Location *);
354 int location_name(std::string& result, std::string base = std::string(""));
356 void reset_input_monitor_state ();
358 pframes_t get_block_size() const { return current_block_size; }
359 framecnt_t worst_output_latency () const { return _worst_output_latency; }
360 framecnt_t worst_input_latency () const { return _worst_input_latency; }
361 framecnt_t worst_track_latency () const { return _worst_track_latency; }
362 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
364 #ifdef HAVE_JACK_SESSION
365 void jack_session_event (jack_session_event_t* event);
367 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false);
368 int restore_state (std::string snapshot_name);
369 int save_template (std::string template_name);
370 int save_history (std::string snapshot_name = "");
371 int restore_history (std::string snapshot_name);
372 void remove_state (std::string snapshot_name);
373 void rename_state (std::string old_name, std::string new_name);
374 void remove_pending_capture_state ();
376 static int rename_template (std::string old_name, std::string new_name);
377 static int delete_template (std::string name);
379 PBD::Signal1<void,std::string> StateSaved;
380 PBD::Signal0<void> StateReady;
382 std::vector<std::string*>* possible_states() const;
383 static std::vector<std::string*>* possible_states (std::string path);
385 XMLNode& get_state();
386 int set_state(const XMLNode& node, int version); // not idempotent
387 XMLNode& get_template();
389 /// The instant xml file is written to the session directory
390 void add_instant_xml (XMLNode&, bool write_to_config = true);
391 XMLNode* instant_xml (const std::string& str);
393 enum StateOfTheState {
398 InitialConnecting = 0x8,
403 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
405 void add_route_group (RouteGroup *);
406 void remove_route_group (RouteGroup&);
407 void reorder_route_groups (std::list<RouteGroup*>);
409 RouteGroup* route_group_by_name (std::string);
410 RouteGroup& all_route_group() const;
412 PBD::Signal1<void,RouteGroup*> route_group_added;
413 PBD::Signal0<void> route_group_removed;
414 PBD::Signal0<void> route_groups_reordered;
416 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
417 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
422 std::list<RouteGroup*> const & route_groups () const {
423 return _route_groups;
426 /* fundamental operations. duh. */
428 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
431 TrackMode mode = Normal,
432 RouteGroup* route_group = 0,
433 uint32_t how_many = 1,
434 std::string name_template = ""
437 RouteList new_audio_route (
438 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
441 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
442 TrackMode mode = Normal, RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
445 void remove_route (boost::shared_ptr<Route>);
446 void resort_routes ();
447 void resort_routes_using (boost::shared_ptr<RouteList>);
449 void set_remote_control_ids();
451 AudioEngine & engine() { return _engine; }
452 AudioEngine const & engine () const { return _engine; }
456 framepos_t transport_frame () const {return _transport_frame; }
457 framepos_t audible_frame () const;
458 framepos_t requested_return_frame() const { return _requested_return_frame; }
472 void sync_time_vars();
474 void bbt_time (framepos_t when, Timecode::BBT_Time&);
475 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
476 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
477 void timecode_time (Timecode::Time &);
478 void timecode_time (framepos_t when, Timecode::Time&);
479 void timecode_time_subframes (framepos_t when, Timecode::Time&);
481 void timecode_duration (framecnt_t, Timecode::Time&) const;
482 void timecode_duration_string (char *, framecnt_t) const;
484 framecnt_t convert_to_frames (AnyTime const & position);
485 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
487 static PBD::Signal1<void, framepos_t> StartTimeChanged;
488 static PBD::Signal1<void, framepos_t> EndTimeChanged;
490 std::vector<SyncSource> get_available_sync_options() const;
491 void request_sync_source (Slave*);
492 bool synced_to_jack() const { return config.get_external_sync() && config.get_sync_source() == JACK; }
494 double transport_speed() const { return _transport_speed; }
495 bool transport_stopped() const { return _transport_speed == 0.0f; }
496 bool transport_rolling() const { return _transport_speed != 0.0f; }
498 void set_silent (bool yn);
499 bool silent () { return _silent; }
501 TempoMap& tempo_map() { return *_tempo_map; }
503 /// signals the current transport position in frames, bbt and timecode time (in that order)
504 PBD::Signal3<void, const framepos_t &, const Timecode::BBT_Time&, const Timecode::Time&> tick;
508 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
510 std::string path_from_region_name (DataType type, std::string name, std::string identifier);
512 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
513 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
514 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
516 /* source management */
518 void import_audiofiles (ImportStatus&);
519 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
520 std::string build_tmp_convert_name (std::string file);
522 boost::shared_ptr<ExportHandler> get_export_handler ();
523 boost::shared_ptr<ExportStatus> get_export_status ();
525 int start_audio_export (framepos_t position, bool realtime);
527 PBD::Signal1<int, framecnt_t> ProcessExport;
528 static PBD::Signal2<void,std::string, std::string> Exported;
530 void add_source (boost::shared_ptr<Source>);
531 void remove_source (boost::weak_ptr<Source>);
533 void cleanup_regions();
534 int cleanup_sources (CleanupReport&);
535 int cleanup_trash_sources (CleanupReport&);
537 int destroy_sources (std::list<boost::shared_ptr<Source> >);
539 int remove_last_capture ();
541 /** handlers should return -1 for "stop cleanup",
542 0 for "yes, delete this playlist",
543 1 for "no, don't delete this playlist".
545 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
547 /** handlers should return 0 for "ignore the rate mismatch",
548 !0 for "do not use this session"
550 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
552 /** handlers should return !0 for use pending state, 0 for ignore it.
554 static PBD::Signal0<int> AskAboutPendingState;
556 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
557 size_t, std::string const &, uint32_t, bool destructive);
559 boost::shared_ptr<MidiSource> create_midi_source_for_session (
560 Track*, std::string const &);
562 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
563 boost::shared_ptr<Source> source_by_path_and_channel (const std::string&, uint16_t);
564 uint32_t count_sources_by_origin (const std::string&);
566 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
568 /* named selections */
570 boost::shared_ptr<NamedSelection> named_selection_by_name (std::string name);
571 void add_named_selection (boost::shared_ptr<NamedSelection>);
572 void remove_named_selection (boost::shared_ptr<NamedSelection>);
574 template<class T> void foreach_named_selection (T& obj, void (T::*func)(boost::shared_ptr<NamedSelection>));
575 PBD::Signal0<void> NamedSelectionAdded;
576 PBD::Signal0<void> NamedSelectionRemoved;
578 /* Curves and AutomationLists (TODO when they go away) */
579 void add_automation_list(AutomationList*);
583 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
584 void audition_playlist ();
585 void audition_region (boost::shared_ptr<Region>);
586 void cancel_audition ();
587 bool is_auditioning () const;
589 PBD::Signal1<void,bool> AuditionActive;
591 /* flattening stuff */
593 boost::shared_ptr<Region> write_one_track (AudioTrack&, framepos_t start, framepos_t end,
594 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
595 bool enable_processing = true);
596 int freeze_all (InterThreadInfo&);
598 /* session-wide solo/mute/rec-enable */
600 bool soloing() const { return _non_soloed_outs_muted; }
601 bool listening() const { return _listen_cnt > 0; }
602 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
604 static const SessionEvent::RTeventCallback rt_cleanup;
606 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
607 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
608 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
609 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
610 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
611 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
612 void set_exclusive_input_active (boost::shared_ptr<Route> rt, bool others_on);
614 PBD::Signal1<void,bool> SoloActive;
615 PBD::Signal0<void> SoloChanged;
616 PBD::Signal0<void> IsolatedChanged;
618 /* control/master out */
620 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
621 boost::shared_ptr<Route> master_out() const { return _master_out; }
623 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
624 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
625 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
626 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
627 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
629 static void set_disable_all_loaded_plugins (bool yn) {
630 _disable_all_loaded_plugins = yn;
632 static bool get_disable_all_loaded_plugins() {
633 return _disable_all_loaded_plugins;
636 uint32_t next_send_id();
637 uint32_t next_return_id();
638 uint32_t next_insert_id();
639 void mark_send_id (uint32_t);
640 void mark_return_id (uint32_t);
641 void mark_insert_id (uint32_t);
642 void unmark_send_id (uint32_t);
643 void unmark_return_id (uint32_t);
644 void unmark_insert_id (uint32_t);
646 /* s/w "RAID" management */
648 framecnt_t available_capture_duration();
652 void add_bundle (boost::shared_ptr<Bundle>);
653 void remove_bundle (boost::shared_ptr<Bundle>);
654 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
656 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleAdded;
657 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleRemoved;
661 /* History (for editors, mixers, UIs etc.) */
663 /** Undo some transactions.
664 * @param n Number of transactions to undo.
666 void undo (uint32_t n) {
670 void redo (uint32_t n) {
674 UndoHistory& history() { return _history; }
676 uint32_t undo_depth() const { return _history.undo_depth(); }
677 uint32_t redo_depth() const { return _history.redo_depth(); }
678 std::string next_undo() const { return _history.next_undo(); }
679 std::string next_redo() const { return _history.next_redo(); }
681 void begin_reversible_command (const std::string& cmd_name);
682 void begin_reversible_command (GQuark);
683 void commit_reversible_command (Command* cmd = 0);
685 void add_command (Command *const cmd) {
686 assert (_current_trans);
687 _current_trans->add_command (cmd);
690 /** @return The list of operations that are currently in progress */
691 std::list<GQuark> const & current_operations () {
692 return _current_trans_quarks;
695 void add_commands (std::vector<Command*> const & cmds);
697 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
699 // these commands are implemented in libs/ardour/session_command.cc
700 Command* memento_command_factory(XMLNode* n);
701 Command* stateful_diff_command_factory (XMLNode *);
702 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
706 boost::shared_ptr<IO> click_io() { return _click_io; }
708 /* disk, buffer loads */
710 uint32_t playback_load ();
711 uint32_t capture_load ();
715 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
716 bool get_play_range () const { return _play_range; }
718 /* buffers for gain and pan */
720 gain_t* gain_automation_buffer () const;
721 pan_t** pan_automation_buffer () const;
723 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
727 static long vst_callback (AEffect* effect,
734 static PBD::Signal0<void> SendFeedback;
738 boost::shared_ptr<Speakers> get_speakers ();
742 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
743 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
745 void add_controllable (boost::shared_ptr<PBD::Controllable>);
746 void remove_controllable (PBD::Controllable*);
748 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
750 SessionMetadata & metadata () { return *_metadata; }
752 SessionConfiguration config;
754 bool exporting () const {
758 /* this is a private enum, but setup_enum_writer() needs it,
759 and i can't find a way to give that function
763 enum PostTransportWork {
764 PostTransportStop = 0x1,
765 PostTransportDuration = 0x2,
766 PostTransportLocate = 0x4,
767 PostTransportRoll = 0x8,
768 PostTransportAbort = 0x10,
769 PostTransportOverWrite = 0x20,
770 PostTransportSpeed = 0x40,
771 PostTransportAudition = 0x80,
772 PostTransportReverse = 0x100,
773 PostTransportInputChange = 0x200,
774 PostTransportCurveRealloc = 0x400,
775 PostTransportClearSubstate = 0x800,
776 PostTransportAdjustPlaybackBuffering = 0x1000,
777 PostTransportAdjustCaptureBuffering = 0x2000
786 SlaveState slave_state() const { return _slave_state; }
788 boost::shared_ptr<SessionPlaylists> playlists;
790 void send_mmc_locate (framepos_t);
791 int send_full_time_code (framepos_t);
793 PBD::Signal0<void> RouteOrderKeyChanged;
795 bool step_editing() const { return (_step_editors > 0); }
797 void request_suspend_timecode_transmission ();
798 void request_resume_timecode_transmission ();
799 bool timecode_transmission_suspended () const;
801 std::string source_search_path(DataType) const;
802 void ensure_search_path_includes (const std::string& path, DataType type);
804 std::list<std::string> unknown_processors () const;
806 /* handlers can return an integer value:
807 0: config.set_audio_search_path() or config.set_midi_search_path() was used
808 to modify the search path and we should try to find it again.
809 1: quit entire session load
810 2: as 0, but don't ask about other missing files
811 3: don't ask about other missing files, and just mark this one missing
812 -1: just mark this one missing
813 any other value: as -1
815 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
817 /** Emitted when the session wants Ardour to quit */
818 static PBD::Signal0<void> Quit;
821 friend class AudioEngine;
822 void set_block_size (pframes_t nframes);
823 void set_frame_rate (framecnt_t nframes);
827 void schedule_curve_reallocation ();
828 void update_latency_compensation (bool force = false);
831 int create (const std::string& mix_template, BusProfile*);
835 PendingDeclickIn = 0x1,
836 PendingDeclickOut = 0x2,
837 StopPendingCapture = 0x4,
838 PendingLocate = 0x20,
841 /* stuff used in process() should be close together to
845 typedef void (Session::*process_function_type)(pframes_t);
847 AudioEngine& _engine;
848 mutable gint processing_prohibited;
849 process_function_type process_function;
850 process_function_type last_process_function;
851 bool waiting_for_sync_offset;
852 framecnt_t _base_frame_rate;
853 framecnt_t _current_frame_rate; //this includes video pullup offset
854 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
855 int transport_sub_state;
856 mutable gint _record_status;
857 framepos_t _transport_frame;
858 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
862 void maybe_update_session_range (framepos_t, framepos_t);
864 // varispeed playback
865 double _transport_speed;
866 double _last_transport_speed;
867 double _target_transport_speed;
868 CubicInterpolation interpolation;
870 bool auto_play_legal;
871 framepos_t _last_slave_transport_frame;
872 framecnt_t maximum_output_latency;
873 framepos_t _requested_return_frame;
874 pframes_t current_block_size;
875 framecnt_t _worst_output_latency;
876 framecnt_t _worst_input_latency;
877 framecnt_t _worst_track_latency;
880 float _meter_falloff;
881 bool _non_soloed_outs_muted;
882 uint32_t _listen_cnt;
883 uint32_t _solo_isolated_cnt;
887 void set_worst_io_latencies ();
888 void set_worst_playback_latency ();
889 void set_worst_capture_latency ();
890 void set_worst_io_latencies_x (IOChange, void *) {
891 set_worst_io_latencies ();
893 void post_capture_latency ();
894 void post_playback_latency ();
896 void update_latency_compensation_proxy (void* ignored);
898 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
900 void process_scrub (pframes_t);
901 void process_without_events (pframes_t);
902 void process_with_events (pframes_t);
903 void process_audition (pframes_t);
904 void process_export (pframes_t);
905 int process_export_fw (pframes_t);
907 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
908 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
909 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
911 Glib::Mutex process_thread_lock;
912 std::list<ProcessThread*> process_threads;
916 static const int delta_accumulator_size = 25;
917 int delta_accumulator_cnt;
918 int32_t delta_accumulator[delta_accumulator_size];
919 int32_t average_slave_delta;
921 bool have_first_delta_accumulator;
923 SlaveState _slave_state;
924 framepos_t slave_wait_end;
926 void reset_slave_state ();
927 bool follow_slave (pframes_t);
928 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
929 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
930 void follow_slave_silently (pframes_t nframes, float slave_speed);
932 void switch_to_sync_source (SyncSource); /* !RT context */
933 void drop_sync_source (); /* !RT context */
934 void use_sync_source (Slave*); /* RT context */
936 bool post_export_sync;
937 framepos_t post_export_position;
940 bool _export_rolling;
942 boost::shared_ptr<ExportHandler> export_handler;
943 boost::shared_ptr<ExportStatus> export_status;
946 int stop_audio_export ();
947 void finalize_audio_export ();
949 PBD::ScopedConnection export_freewheel_connection;
951 void get_track_statistics ();
952 int process_routes (pframes_t, bool& need_butler);
953 int silent_process_routes (pframes_t, bool& need_butler);
955 bool get_rec_monitors_input () {
956 if (actively_recording()) {
959 if (config.get_auto_input()) {
967 int get_transport_declick_required () {
968 if (transport_sub_state & PendingDeclickIn) {
969 transport_sub_state &= ~PendingDeclickIn;
971 } else if (transport_sub_state & PendingDeclickOut) {
978 bool maybe_stop (framepos_t limit);
979 bool maybe_sync_start (pframes_t &);
981 void check_declick_out ();
987 /** Number of process frames since the last MTC output (when sending MTC); used to
988 * know when to send full MTC messages every so often.
990 pframes_t _pframes_since_last_mtc;
991 bool session_midi_feedback;
994 framepos_t last_loopend;
996 boost::scoped_ptr<SessionDirectory> _session_dir;
999 void when_engine_running ();
1000 void graph_reordered ();
1002 /** current snapshot name, without the .ardour suffix */
1003 std::string _current_snapshot_name;
1005 XMLTree* state_tree;
1006 bool state_was_pending;
1007 StateOfTheState _state_of_the_state;
1010 int load_options (const XMLNode&);
1011 int load_state (std::string snapshot_name);
1013 framepos_t _last_roll_location;
1014 framepos_t _last_roll_or_reversal_location;
1015 framepos_t _last_record_location;
1017 bool pending_locate_roll;
1018 framepos_t pending_locate_frame;
1019 bool pending_locate_flush;
1021 bool pending_auto_loop;
1025 static const PostTransportWork ProcessCannotProceedMask =
1027 PostTransportInputChange|
1029 PostTransportReverse|
1030 PostTransportCurveRealloc|
1031 PostTransportAudition|
1032 PostTransportLocate|
1034 PostTransportClearSubstate);
1036 gint _post_transport_work; /* accessed only atomic ops */
1037 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (&_post_transport_work); }
1038 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1039 void add_post_transport_work (PostTransportWork ptw);
1041 void schedule_playback_buffering_adjustment ();
1042 void schedule_capture_buffering_adjustment ();
1044 uint32_t cumulative_rf_motion;
1047 void set_rf_speed (float speed);
1048 void reset_rf_scale (framecnt_t frames_moved);
1050 Locations* _locations;
1051 void locations_changed ();
1052 void locations_added (Location*);
1053 void handle_locations_changed (Locations::LocationList&);
1055 PBD::ScopedConnectionList punch_connections;
1056 void auto_punch_start_changed (Location *);
1057 void auto_punch_end_changed (Location *);
1058 void auto_punch_changed (Location *);
1060 PBD::ScopedConnectionList loop_connections;
1061 void auto_loop_changed (Location *);
1063 void first_stage_init (std::string path, std::string snapshot_name);
1064 int second_stage_init ();
1065 void remove_empty_sounds ();
1067 void setup_midi_control ();
1068 int midi_read (MIDI::Port *);
1070 void enable_record ();
1072 void increment_transport_position (framecnt_t val) {
1073 if (max_framepos - val < _transport_frame) {
1074 _transport_frame = max_framepos;
1076 _transport_frame += val;
1080 void decrement_transport_position (framecnt_t val) {
1081 if (val < _transport_frame) {
1082 _transport_frame -= val;
1084 _transport_frame = 0;
1088 void post_transport_motion ();
1089 static void *session_loader_thread (void *arg);
1093 /* SessionEventManager interface */
1095 void process_event (SessionEvent*);
1096 void set_next_event ();
1097 void cleanup_event (SessionEvent*,int);
1099 /* MIDI Machine Control */
1101 void spp_start (MIDI::Parser&, framepos_t timestamp);
1102 void spp_continue (MIDI::Parser&, framepos_t timestamp);
1103 void spp_stop (MIDI::Parser&, framepos_t timestamp);
1105 void mmc_deferred_play (MIDI::MachineControl &);
1106 void mmc_stop (MIDI::MachineControl &);
1107 void mmc_step (MIDI::MachineControl &, int);
1108 void mmc_pause (MIDI::MachineControl &);
1109 void mmc_record_pause (MIDI::MachineControl &);
1110 void mmc_record_strobe (MIDI::MachineControl &);
1111 void mmc_record_exit (MIDI::MachineControl &);
1112 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1113 void mmc_fast_forward (MIDI::MachineControl &);
1114 void mmc_rewind (MIDI::MachineControl &);
1115 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1116 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1117 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1119 struct timeval last_mmc_step;
1122 typedef boost::function<bool()> MidiTimeoutCallback;
1123 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1125 MidiTimeoutList midi_timeouts;
1126 bool mmc_step_timeout ();
1128 MIDI::byte mtc_msg[16];
1129 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1130 MIDI::byte midi_msg[16];
1131 framepos_t outbound_mtc_timecode_frame;
1132 Timecode::Time transmitting_timecode_time;
1133 int next_quarter_frame_to_send;
1135 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1136 framecnt_t _frames_per_hour;
1137 framecnt_t _timecode_frames_per_hour;
1139 /* cache the most-recently requested time conversions. This helps when we
1140 * have multiple clocks showing the same time (e.g. the transport frame) */
1141 bool last_timecode_valid;
1142 framepos_t last_timecode_when;
1143 Timecode::Time last_timecode;
1145 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1147 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1149 void reset_record_status ();
1151 int no_roll (pframes_t nframes);
1152 int fail_roll (pframes_t nframes);
1154 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1155 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1157 MidiControlUI* midi_control_ui;
1159 int start_midi_thread ();
1160 void terminate_midi_thread ();
1162 void set_play_loop (bool yn);
1163 void unset_play_loop ();
1164 void overwrite_some_buffers (Track *);
1165 void flush_all_inserts ();
1166 int micro_locate (framecnt_t distance);
1167 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1168 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1169 void force_locate (framepos_t frame, bool with_roll = false);
1170 void set_track_speed (Track *, double speed);
1171 void set_transport_speed (double speed, bool abort = false, bool clear_state = false);
1172 void stop_transport (bool abort = false, bool clear_state = false);
1173 void start_transport ();
1174 void realtime_stop (bool abort, bool clear_state);
1175 void realtime_locate ();
1176 void non_realtime_start_scrub ();
1177 void non_realtime_set_speed ();
1178 void non_realtime_locate ();
1179 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1180 void non_realtime_overwrite (int entry_request_count, bool& finished);
1181 void post_transport ();
1182 void engine_halted ();
1183 void xrun_recovery ();
1185 TempoMap *_tempo_map;
1186 void tempo_map_changed (const PBD::PropertyChange&);
1188 /* edit/mix groups */
1190 int load_route_groups (const XMLNode&, int);
1192 std::list<RouteGroup *> _route_groups;
1193 RouteGroup* _all_route_group;
1197 boost::shared_ptr<Graph> route_graph;
1199 SerializedRCUManager<RouteList> routes;
1201 void add_routes (RouteList&, bool auto_connect, bool save);
1202 uint32_t destructive_index;
1204 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1205 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1207 void route_processors_changed (RouteProcessorChange);
1209 bool find_route_name (std::string const &, uint32_t& id, char* name, size_t name_len, bool);
1210 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1211 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1212 bool with_lock, bool connect_inputs = true,
1213 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1214 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1218 bool solo_update_disabled;
1220 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1221 void route_mute_changed (void *src);
1222 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1223 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1224 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1226 void listen_position_changed ();
1227 void solo_control_mode_changed ();
1229 /* REGION MANAGEMENT */
1231 mutable Glib::Mutex region_lock;
1233 int load_regions (const XMLNode& node);
1234 int load_compounds (const XMLNode& node);
1236 void route_group_changed ();
1240 mutable Glib::Mutex source_lock;
1243 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1249 SourceMap get_sources() { return sources; }
1252 int load_sources (const XMLNode& node);
1253 XMLNode& get_sources_as_xml ();
1255 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1259 void remove_playlist (boost::weak_ptr<Playlist>);
1260 void track_playlist_changed (boost::weak_ptr<Track>);
1261 void playlist_region_added (boost::weak_ptr<Region>);
1262 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1263 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1265 /* NAMED SELECTIONS */
1267 mutable Glib::Mutex named_selection_lock;
1268 typedef std::set<boost::shared_ptr<NamedSelection> > NamedSelectionList;
1269 NamedSelectionList named_selections;
1271 int load_named_selections (const XMLNode&);
1273 NamedSelection *named_selection_factory (std::string name);
1274 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1276 /* CURVES and AUTOMATION LISTS */
1277 std::map<PBD::ID, AutomationList*> automation_lists;
1279 /* DEFAULT FADE CURVES */
1281 float default_fade_steepness;
1282 float default_fade_msecs;
1286 boost::shared_ptr<Auditioner> auditioner;
1287 void set_audition (boost::shared_ptr<Region>);
1288 void non_realtime_set_audition ();
1289 boost::shared_ptr<Region> pending_audition_region;
1295 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1297 /* INSERT AND SEND MANAGEMENT */
1299 boost::dynamic_bitset<uint32_t> send_bitset;
1300 boost::dynamic_bitset<uint32_t> return_bitset;
1301 boost::dynamic_bitset<uint32_t> insert_bitset;
1305 struct space_and_path {
1306 uint32_t blocks; /* 4kB blocks */
1314 struct space_and_path_ascending_cmp {
1315 bool operator() (space_and_path a, space_and_path b) {
1316 return a.blocks > b.blocks;
1320 void setup_raid_path (std::string path);
1322 std::vector<space_and_path> session_dirs;
1323 std::vector<space_and_path>::iterator last_rr_session_dir;
1324 uint32_t _total_free_4k_blocks;
1325 Glib::Mutex space_lock;
1327 bool no_questions_about_missing_files;
1329 std::string get_best_session_directory_for_new_source ();
1331 mutable gint _playback_load;
1332 mutable gint _capture_load;
1336 SerializedRCUManager<BundleList> _bundles;
1337 XMLNode* _bundle_xml_node;
1338 int load_bundles (XMLNode const &);
1340 void reverse_track_buffers ();
1342 UndoHistory _history;
1343 /** current undo transaction, or 0 */
1344 UndoTransaction* _current_trans;
1345 /** GQuarks to describe the reversible commands that are currently in progress.
1346 * These may be nested, in which case more recently-started commands are toward
1347 * the front of the list.
1349 std::list<GQuark> _current_trans_quarks;
1351 void jack_timebase_callback (jack_transport_state_t, pframes_t, jack_position_t*, int);
1352 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1353 void reset_jack_connection (jack_client_t* jack);
1354 void process_rtop (SessionEvent*);
1356 void update_latency (bool playback);
1358 XMLNode& state(bool);
1364 boost::shared_ptr<IO> _click_io;
1366 Sample* click_emphasis_data;
1367 framecnt_t click_length;
1368 framecnt_t click_emphasis_length;
1369 mutable Glib::RWLock click_lock;
1371 static const Sample default_click[];
1372 static const framecnt_t default_click_length;
1373 static const Sample default_click_emphasis[];
1374 static const framecnt_t default_click_emphasis_length;
1377 void setup_click_sounds (int which);
1378 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1379 void clear_clicks ();
1380 void click (framepos_t start, framecnt_t nframes);
1382 std::vector<Route*> master_outs;
1384 /* range playback */
1386 std::list<AudioRange> current_audio_range;
1388 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1389 void unset_play_range ();
1394 boost::shared_ptr<Route> _master_out;
1395 boost::shared_ptr<Route> _monitor_out;
1399 long _vst_callback (VSTPlugin*,
1406 /* number of hardware ports we're using,
1407 based on max (requested,available)
1410 ChanCount n_physical_outputs;
1411 ChanCount n_physical_inputs;
1413 int find_all_sources (std::string path, std::set<std::string>& result);
1414 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1416 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1417 Glib::Mutex controllables_lock;
1418 Controllables controllables;
1420 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1422 void reset_native_file_format();
1423 bool first_file_data_format_reset;
1424 bool first_file_header_format_reset;
1426 void config_changed (std::string, bool);
1428 XMLNode& get_control_protocol_state ();
1430 void set_history_depth (uint32_t depth);
1431 void sync_order_keys ();
1433 static bool _disable_all_loaded_plugins;
1435 SessionMetadata * _metadata;
1437 mutable bool have_looped; ///< Used in ::audible_frame(*)
1439 void update_have_rec_enabled_track ();
1440 gint _have_rec_enabled_track;
1442 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1444 /* realtime "apply to set of routes" operations */
1445 SessionEvent* get_rt_event (
1446 boost::shared_ptr<RouteList> rl, bool yn,
1447 SessionEvent::RTeventCallback after, bool group_override,
1448 void (Session::*method) (boost::shared_ptr<RouteList>, bool, bool));
1450 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1451 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1452 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1453 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1454 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1455 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1457 /** temporary list of Diskstreams used only during load of 2.X sessions */
1458 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1460 void add_session_range_location (framepos_t, framepos_t);
1462 void setup_midi_machine_control ();
1464 void route_order_key_changed ();
1466 void step_edit_status_change (bool);
1467 uint32_t _step_editors;
1469 /** true if timecode transmission by the transport is suspended, otherwise false */
1470 mutable gint _suspend_timecode_transmission;
1472 void update_locations_after_tempo_map_change (Locations::LocationList &);
1474 void start_time_changed (framepos_t);
1475 void end_time_changed (framepos_t);
1477 void set_track_monitor_input_status (bool);
1478 framepos_t compute_stop_limit () const;
1480 boost::shared_ptr<Speakers> _speakers;
1481 void load_nested_sources (const XMLNode& node);
1484 } // namespace ARDOUR
1486 #endif /* __ardour_session_h__ */