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 () const {
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 /** Emitted on the following changes in transport state:
278 * - stop (from the butler thread)
279 * - change in whether or not we are looping (from the process thread)
280 * - change in the play range (from the process thread)
281 * - start (from the process thread)
284 PBD::Signal0<void> TransportStateChange;
286 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
287 PBD::Signal1<void,framepos_t> Xrun;
288 PBD::Signal0<void> TransportLooped;
290 /** emitted when a locate has occurred */
291 PBD::Signal0<void> Located;
293 PBD::Signal1<void,RouteList&> RouteAdded;
294 /** Emitted when anything about any of our route groups changes */
295 PBD::Signal0<void> RouteGroupChanged;
297 /* Step Editing status changed */
298 PBD::Signal1<void,bool> StepEditStatusChange;
300 void queue_event (SessionEvent*);
302 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
303 void request_bounded_roll (framepos_t start, framepos_t end);
304 void request_stop (bool abort = false, bool clear_state = false);
305 void request_locate (framepos_t frame, bool with_roll = false);
307 void request_play_loop (bool yn, bool leave_rolling = false);
308 bool get_play_loop () const { return play_loop; }
310 framepos_t last_transport_start () const { return _last_roll_location; }
313 void use_rf_shuttle_speed ();
314 void allow_auto_play (bool yn);
315 void request_transport_speed (double speed);
316 void request_transport_speed_nonzero (double);
317 void request_overwrite_buffer (Track *);
318 void adjust_playback_buffering();
319 void adjust_capture_buffering();
320 void request_track_speed (Track *, double speed);
321 void request_input_change_handling ();
323 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
324 bool transport_locked () const;
328 framepos_t current_end_frame () const;
329 framepos_t current_start_frame () const;
330 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
331 framecnt_t frame_rate () const { return _current_frame_rate; }
332 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
333 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
334 framecnt_t frames_per_hour () const { return _frames_per_hour; }
336 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
337 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
339 MIDI::byte get_mtc_timecode_bits() const {
340 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
343 float timecode_frames_per_second() const;
344 bool timecode_drop_frames() const;
348 Locations *locations() { return _locations; }
350 PBD::Signal1<void,Location*> auto_loop_location_changed;
351 PBD::Signal1<void,Location*> auto_punch_location_changed;
352 PBD::Signal0<void> locations_modified;
354 void set_auto_punch_location (Location *);
355 void set_auto_loop_location (Location *);
356 int location_name(std::string& result, std::string base = std::string(""));
358 void reset_input_monitor_state ();
360 pframes_t get_block_size() const { return current_block_size; }
361 framecnt_t worst_output_latency () const { return _worst_output_latency; }
362 framecnt_t worst_input_latency () const { return _worst_input_latency; }
363 framecnt_t worst_track_latency () const { return _worst_track_latency; }
364 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
366 #ifdef HAVE_JACK_SESSION
367 void jack_session_event (jack_session_event_t* event);
369 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false);
370 int restore_state (std::string snapshot_name);
371 int save_template (std::string template_name);
372 int save_history (std::string snapshot_name = "");
373 int restore_history (std::string snapshot_name);
374 void remove_state (std::string snapshot_name);
375 void rename_state (std::string old_name, std::string new_name);
376 void remove_pending_capture_state ();
378 static int rename_template (std::string old_name, std::string new_name);
379 static int delete_template (std::string name);
381 PBD::Signal1<void,std::string> StateSaved;
382 PBD::Signal0<void> StateReady;
384 std::vector<std::string*>* possible_states() const;
385 static std::vector<std::string*>* possible_states (std::string path);
387 XMLNode& get_state();
388 int set_state(const XMLNode& node, int version); // not idempotent
389 XMLNode& get_template();
391 /// The instant xml file is written to the session directory
392 void add_instant_xml (XMLNode&, bool write_to_config = true);
393 XMLNode* instant_xml (const std::string& str);
395 enum StateOfTheState {
400 InitialConnecting = 0x8,
405 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
407 void add_route_group (RouteGroup *);
408 void remove_route_group (RouteGroup&);
409 void reorder_route_groups (std::list<RouteGroup*>);
411 RouteGroup* route_group_by_name (std::string);
412 RouteGroup& all_route_group() const;
414 PBD::Signal1<void,RouteGroup*> route_group_added;
415 PBD::Signal0<void> route_group_removed;
416 PBD::Signal0<void> route_groups_reordered;
418 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
419 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
424 std::list<RouteGroup*> const & route_groups () const {
425 return _route_groups;
428 /* fundamental operations. duh. */
430 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
433 TrackMode mode = Normal,
434 RouteGroup* route_group = 0,
435 uint32_t how_many = 1,
436 std::string name_template = ""
439 RouteList new_audio_route (
440 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
443 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
444 TrackMode mode = Normal, RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
447 void remove_route (boost::shared_ptr<Route>);
448 void resort_routes ();
449 void resort_routes_using (boost::shared_ptr<RouteList>);
451 void set_remote_control_ids();
453 AudioEngine & engine() { return _engine; }
454 AudioEngine const & engine () const { return _engine; }
458 framepos_t transport_frame () const {return _transport_frame; }
459 framepos_t audible_frame () const;
460 framepos_t requested_return_frame() const { return _requested_return_frame; }
474 void sync_time_vars();
476 void bbt_time (framepos_t when, Timecode::BBT_Time&);
477 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
478 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
479 void timecode_time (Timecode::Time &);
480 void timecode_time (framepos_t when, Timecode::Time&);
481 void timecode_time_subframes (framepos_t when, Timecode::Time&);
483 void timecode_duration (framecnt_t, Timecode::Time&) const;
484 void timecode_duration_string (char *, framecnt_t) const;
486 framecnt_t convert_to_frames (AnyTime const & position);
487 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
489 static PBD::Signal1<void, framepos_t> StartTimeChanged;
490 static PBD::Signal1<void, framepos_t> EndTimeChanged;
492 std::vector<SyncSource> get_available_sync_options() const;
493 void request_sync_source (Slave*);
494 bool synced_to_jack() const { return config.get_external_sync() && config.get_sync_source() == JACK; }
496 double transport_speed() const { return _transport_speed; }
497 bool transport_stopped() const { return _transport_speed == 0.0f; }
498 bool transport_rolling() const { return _transport_speed != 0.0f; }
500 void set_silent (bool yn);
501 bool silent () { return _silent; }
503 TempoMap& tempo_map() { return *_tempo_map; }
505 /// signals the current transport position in frames, bbt and timecode time (in that order)
506 PBD::Signal3<void, const framepos_t &, const Timecode::BBT_Time&, const Timecode::Time&> tick;
510 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
512 std::string path_from_region_name (DataType type, std::string name, std::string identifier);
514 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
515 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
516 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
518 /* source management */
520 void import_audiofiles (ImportStatus&);
521 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
522 std::string build_tmp_convert_name (std::string file);
524 boost::shared_ptr<ExportHandler> get_export_handler ();
525 boost::shared_ptr<ExportStatus> get_export_status ();
527 int start_audio_export (framepos_t position, bool realtime);
529 PBD::Signal1<int, framecnt_t> ProcessExport;
530 static PBD::Signal2<void,std::string, std::string> Exported;
532 void add_source (boost::shared_ptr<Source>);
533 void remove_source (boost::weak_ptr<Source>);
535 void cleanup_regions();
536 int cleanup_sources (CleanupReport&);
537 int cleanup_trash_sources (CleanupReport&);
539 int destroy_sources (std::list<boost::shared_ptr<Source> >);
541 int remove_last_capture ();
543 /** handlers should return -1 for "stop cleanup",
544 0 for "yes, delete this playlist",
545 1 for "no, don't delete this playlist".
547 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
549 /** handlers should return 0 for "ignore the rate mismatch",
550 !0 for "do not use this session"
552 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
554 /** handlers should return !0 for use pending state, 0 for ignore it.
556 static PBD::Signal0<int> AskAboutPendingState;
558 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
559 size_t, std::string const &, uint32_t, bool destructive);
561 boost::shared_ptr<MidiSource> create_midi_source_for_session (
562 Track*, std::string const &);
564 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
565 boost::shared_ptr<Source> source_by_path_and_channel (const std::string&, uint16_t);
566 uint32_t count_sources_by_origin (const std::string&);
568 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
570 /* named selections */
572 boost::shared_ptr<NamedSelection> named_selection_by_name (std::string name);
573 void add_named_selection (boost::shared_ptr<NamedSelection>);
574 void remove_named_selection (boost::shared_ptr<NamedSelection>);
576 template<class T> void foreach_named_selection (T& obj, void (T::*func)(boost::shared_ptr<NamedSelection>));
577 PBD::Signal0<void> NamedSelectionAdded;
578 PBD::Signal0<void> NamedSelectionRemoved;
580 /* Curves and AutomationLists (TODO when they go away) */
581 void add_automation_list(AutomationList*);
585 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
586 void audition_playlist ();
587 void audition_region (boost::shared_ptr<Region>);
588 void cancel_audition ();
589 bool is_auditioning () const;
591 PBD::Signal1<void,bool> AuditionActive;
593 /* flattening stuff */
595 boost::shared_ptr<Region> write_one_track (AudioTrack&, framepos_t start, framepos_t end,
596 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
597 bool enable_processing = true);
598 int freeze_all (InterThreadInfo&);
600 /* session-wide solo/mute/rec-enable */
602 bool soloing() const { return _non_soloed_outs_muted; }
603 bool listening() const { return _listen_cnt > 0; }
604 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
606 static const SessionEvent::RTeventCallback rt_cleanup;
608 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
609 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
610 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
611 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
612 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
613 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
615 PBD::Signal1<void,bool> SoloActive;
616 PBD::Signal0<void> SoloChanged;
617 PBD::Signal0<void> IsolatedChanged;
619 /* control/master out */
621 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
622 boost::shared_ptr<Route> master_out() const { return _master_out; }
624 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
625 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
626 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
627 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
628 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
630 static void set_disable_all_loaded_plugins (bool yn) {
631 _disable_all_loaded_plugins = yn;
633 static bool get_disable_all_loaded_plugins() {
634 return _disable_all_loaded_plugins;
637 uint32_t next_send_id();
638 uint32_t next_return_id();
639 uint32_t next_insert_id();
640 void mark_send_id (uint32_t);
641 void mark_return_id (uint32_t);
642 void mark_insert_id (uint32_t);
643 void unmark_send_id (uint32_t);
644 void unmark_return_id (uint32_t);
645 void unmark_insert_id (uint32_t);
647 /* s/w "RAID" management */
649 framecnt_t available_capture_duration();
653 void add_bundle (boost::shared_ptr<Bundle>);
654 void remove_bundle (boost::shared_ptr<Bundle>);
655 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
657 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleAdded;
658 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleRemoved;
662 /* History (for editors, mixers, UIs etc.) */
664 /** Undo some transactions.
665 * @param n Number of transactions to undo.
667 void undo (uint32_t n) {
671 void redo (uint32_t n) {
675 UndoHistory& history() { return _history; }
677 uint32_t undo_depth() const { return _history.undo_depth(); }
678 uint32_t redo_depth() const { return _history.redo_depth(); }
679 std::string next_undo() const { return _history.next_undo(); }
680 std::string next_redo() const { return _history.next_redo(); }
682 void begin_reversible_command (const std::string& cmd_name);
683 void begin_reversible_command (GQuark);
684 void commit_reversible_command (Command* cmd = 0);
686 void add_command (Command *const cmd) {
687 assert (_current_trans);
688 _current_trans->add_command (cmd);
691 /** @return The list of operations that are currently in progress */
692 std::list<GQuark> const & current_operations () {
693 return _current_trans_quarks;
696 void add_commands (std::vector<Command*> const & cmds);
698 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
700 // these commands are implemented in libs/ardour/session_command.cc
701 Command* memento_command_factory(XMLNode* n);
702 Command* stateful_diff_command_factory (XMLNode *);
703 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
707 boost::shared_ptr<IO> click_io() { return _click_io; }
709 /* disk, buffer loads */
711 uint32_t playback_load ();
712 uint32_t capture_load ();
716 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
717 bool get_play_range () const { return _play_range; }
719 /* buffers for gain and pan */
721 gain_t* gain_automation_buffer () const;
722 pan_t** pan_automation_buffer () const;
724 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
728 static long vst_callback (AEffect* effect,
735 static PBD::Signal0<void> SendFeedback;
739 boost::shared_ptr<Speakers> get_speakers ();
743 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
744 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
746 void add_controllable (boost::shared_ptr<PBD::Controllable>);
747 void remove_controllable (PBD::Controllable*);
749 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
751 SessionMetadata & metadata () { return *_metadata; }
753 SessionConfiguration config;
755 bool exporting () const {
759 /* this is a private enum, but setup_enum_writer() needs it,
760 and i can't find a way to give that function
764 enum PostTransportWork {
765 PostTransportStop = 0x1,
766 PostTransportDisableRecord = 0x2,
767 PostTransportPosition = 0x8,
768 PostTransportDidRecord = 0x20,
769 PostTransportDuration = 0x40,
770 PostTransportLocate = 0x80,
771 PostTransportRoll = 0x200,
772 PostTransportAbort = 0x800,
773 PostTransportOverWrite = 0x1000,
774 PostTransportSpeed = 0x2000,
775 PostTransportAudition = 0x4000,
776 PostTransportScrub = 0x8000,
777 PostTransportReverse = 0x10000,
778 PostTransportInputChange = 0x20000,
779 PostTransportCurveRealloc = 0x40000,
780 PostTransportClearSubstate = 0x80000,
781 PostTransportAdjustPlaybackBuffering = 0x100000,
782 PostTransportAdjustCaptureBuffering = 0x200000
791 SlaveState slave_state() const { return _slave_state; }
793 boost::shared_ptr<SessionPlaylists> playlists;
795 void send_mmc_locate (framepos_t);
796 int send_full_time_code (framepos_t);
798 PBD::Signal0<void> RouteOrderKeyChanged;
800 bool step_editing() const { return (_step_editors > 0); }
802 void request_suspend_timecode_transmission ();
803 void request_resume_timecode_transmission ();
804 bool timecode_transmission_suspended () const;
806 std::string source_search_path(DataType) const;
807 void ensure_search_path_includes (const std::string& path, DataType type);
809 std::list<std::string> unknown_processors () const;
811 /* handlers can return an integer value:
812 0: config.set_audio_search_path() or config.set_midi_search_path() was used
813 to modify the search path and we should try to find it again.
814 1: quit entire session load
815 2: as 0, but don't ask about other missing files
816 3: don't ask about other missing files, and just mark this one missing
817 -1: just mark this one missing
818 any other value: as -1
820 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
822 /** Emitted when the session wants Ardour to quit */
823 static PBD::Signal0<void> Quit;
826 friend class AudioEngine;
827 void set_block_size (pframes_t nframes);
828 void set_frame_rate (framecnt_t nframes);
832 void schedule_curve_reallocation ();
833 void update_latency_compensation (bool force = false);
836 int create (const std::string& mix_template, BusProfile*);
840 PendingDeclickIn = 0x1,
841 PendingDeclickOut = 0x2,
842 StopPendingCapture = 0x4,
843 PendingLocate = 0x20,
846 /* stuff used in process() should be close together to
850 typedef void (Session::*process_function_type)(pframes_t);
852 AudioEngine& _engine;
853 mutable gint processing_prohibited;
854 process_function_type process_function;
855 process_function_type last_process_function;
856 bool waiting_for_sync_offset;
857 framecnt_t _base_frame_rate;
858 framecnt_t _current_frame_rate; //this includes video pullup offset
859 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
860 int transport_sub_state;
861 mutable gint _record_status;
862 framepos_t _transport_frame;
863 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
867 void maybe_update_session_range (framepos_t, framepos_t);
869 // varispeed playback
870 double _transport_speed;
871 double _last_transport_speed;
872 double _target_transport_speed;
873 CubicInterpolation interpolation;
875 bool auto_play_legal;
876 framepos_t _last_slave_transport_frame;
877 framecnt_t maximum_output_latency;
878 framepos_t _requested_return_frame;
879 pframes_t current_block_size;
880 framecnt_t _worst_output_latency;
881 framecnt_t _worst_input_latency;
882 framecnt_t _worst_track_latency;
885 float _meter_falloff;
886 bool _non_soloed_outs_muted;
887 uint32_t _listen_cnt;
888 uint32_t _solo_isolated_cnt;
892 void set_worst_io_latencies ();
893 void set_worst_playback_latency ();
894 void set_worst_capture_latency ();
895 void set_worst_io_latencies_x (IOChange, void *) {
896 set_worst_io_latencies ();
898 void post_capture_latency ();
899 void post_playback_latency ();
901 void update_latency_compensation_proxy (void* ignored);
903 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
905 void process_scrub (pframes_t);
906 void process_without_events (pframes_t);
907 void process_with_events (pframes_t);
908 void process_audition (pframes_t);
909 void process_export (pframes_t);
910 int process_export_fw (pframes_t);
912 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
913 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
914 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
916 Glib::Mutex process_thread_lock;
917 std::list<ProcessThread*> process_threads;
921 static const int delta_accumulator_size = 25;
922 int delta_accumulator_cnt;
923 int32_t delta_accumulator[delta_accumulator_size];
924 int32_t average_slave_delta;
926 bool have_first_delta_accumulator;
928 SlaveState _slave_state;
929 framepos_t slave_wait_end;
931 void reset_slave_state ();
932 bool follow_slave (pframes_t);
933 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
934 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
935 void follow_slave_silently (pframes_t nframes, float slave_speed);
937 void switch_to_sync_source (SyncSource); /* !RT context */
938 void drop_sync_source (); /* !RT context */
939 void use_sync_source (Slave*); /* RT context */
941 bool post_export_sync;
942 framepos_t post_export_position;
945 bool _export_rolling;
947 boost::shared_ptr<ExportHandler> export_handler;
948 boost::shared_ptr<ExportStatus> export_status;
951 int stop_audio_export ();
952 void finalize_audio_export ();
954 PBD::ScopedConnection export_freewheel_connection;
956 void get_track_statistics ();
957 int process_routes (pframes_t, bool& need_butler);
958 int silent_process_routes (pframes_t, bool& need_butler);
960 bool get_rec_monitors_input () {
961 if (actively_recording()) {
964 if (config.get_auto_input()) {
972 int get_transport_declick_required () {
973 if (transport_sub_state & PendingDeclickIn) {
974 transport_sub_state &= ~PendingDeclickIn;
976 } else if (transport_sub_state & PendingDeclickOut) {
983 bool maybe_stop (framepos_t limit);
984 bool maybe_sync_start (pframes_t &);
986 void check_declick_out ();
992 /** Number of process frames since the last MTC output (when sending MTC); used to
993 * know when to send full MTC messages every so often.
995 pframes_t _pframes_since_last_mtc;
996 bool session_midi_feedback;
999 framepos_t last_loopend;
1001 boost::scoped_ptr<SessionDirectory> _session_dir;
1004 void when_engine_running ();
1005 void graph_reordered ();
1007 /** current snapshot name, without the .ardour suffix */
1008 std::string _current_snapshot_name;
1010 XMLTree* state_tree;
1011 bool state_was_pending;
1012 StateOfTheState _state_of_the_state;
1015 int load_options (const XMLNode&);
1016 int load_state (std::string snapshot_name);
1018 framepos_t _last_roll_location;
1019 framepos_t _last_roll_or_reversal_location;
1020 framepos_t _last_record_location;
1022 bool pending_locate_roll;
1023 framepos_t pending_locate_frame;
1024 bool pending_locate_flush;
1026 bool pending_auto_loop;
1030 #if 0 // these should be here, see comments in their other location above
1031 enum PostTransportWork {
1032 PostTransportStop = 0x1,
1033 PostTransportDisableRecord = 0x2,
1034 PostTransportPosition = 0x8,
1035 PostTransportDidRecord = 0x20,
1036 PostTransportDuration = 0x40,
1037 PostTransportLocate = 0x80,
1038 PostTransportRoll = 0x200,
1039 PostTransportAbort = 0x800,
1040 PostTransportOverWrite = 0x1000,
1041 PostTransportSpeed = 0x2000,
1042 PostTransportAudition = 0x4000,
1043 PostTransportScrub = 0x8000,
1044 PostTransportReverse = 0x10000,
1045 PostTransportInputChange = 0x20000,
1046 PostTransportCurveRealloc = 0x40000,
1047 PostTransportClearSubstate = 0x80000
1050 static const PostTransportWork ProcessCannotProceedMask =
1052 PostTransportInputChange|
1054 PostTransportReverse|
1055 PostTransportCurveRealloc|
1057 PostTransportAudition|
1058 PostTransportLocate|
1060 PostTransportClearSubstate);
1062 gint _post_transport_work; /* accessed only atomic ops */
1063 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (&_post_transport_work); }
1064 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1065 void add_post_transport_work (PostTransportWork ptw);
1067 void schedule_playback_buffering_adjustment ();
1068 void schedule_capture_buffering_adjustment ();
1070 uint32_t cumulative_rf_motion;
1073 void set_rf_speed (float speed);
1074 void reset_rf_scale (framecnt_t frames_moved);
1076 Locations* _locations;
1077 void locations_changed ();
1078 void locations_added (Location*);
1079 void handle_locations_changed (Locations::LocationList&);
1081 PBD::ScopedConnectionList punch_connections;
1082 void auto_punch_start_changed (Location *);
1083 void auto_punch_end_changed (Location *);
1084 void auto_punch_changed (Location *);
1086 PBD::ScopedConnectionList loop_connections;
1087 void auto_loop_changed (Location *);
1089 void first_stage_init (std::string path, std::string snapshot_name);
1090 int second_stage_init ();
1091 void remove_empty_sounds ();
1093 void setup_midi_control ();
1094 int midi_read (MIDI::Port *);
1096 void enable_record ();
1098 void increment_transport_position (framecnt_t val) {
1099 if (max_framepos - val < _transport_frame) {
1100 _transport_frame = max_framepos;
1102 _transport_frame += val;
1106 void decrement_transport_position (framecnt_t val) {
1107 if (val < _transport_frame) {
1108 _transport_frame -= val;
1110 _transport_frame = 0;
1114 void post_transport_motion ();
1115 static void *session_loader_thread (void *arg);
1119 /* SessionEventManager interface */
1121 void process_event (SessionEvent*);
1122 void set_next_event ();
1123 void cleanup_event (SessionEvent*,int);
1125 /* MIDI Machine Control */
1127 void spp_start (MIDI::Parser&, framepos_t timestamp);
1128 void spp_continue (MIDI::Parser&, framepos_t timestamp);
1129 void spp_stop (MIDI::Parser&, framepos_t timestamp);
1131 void mmc_deferred_play (MIDI::MachineControl &);
1132 void mmc_stop (MIDI::MachineControl &);
1133 void mmc_step (MIDI::MachineControl &, int);
1134 void mmc_pause (MIDI::MachineControl &);
1135 void mmc_record_pause (MIDI::MachineControl &);
1136 void mmc_record_strobe (MIDI::MachineControl &);
1137 void mmc_record_exit (MIDI::MachineControl &);
1138 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1139 void mmc_fast_forward (MIDI::MachineControl &);
1140 void mmc_rewind (MIDI::MachineControl &);
1141 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1142 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1143 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1145 struct timeval last_mmc_step;
1148 typedef boost::function<bool()> MidiTimeoutCallback;
1149 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1151 MidiTimeoutList midi_timeouts;
1152 bool mmc_step_timeout ();
1154 MIDI::byte mtc_msg[16];
1155 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1156 MIDI::byte midi_msg[16];
1157 framepos_t outbound_mtc_timecode_frame;
1158 Timecode::Time transmitting_timecode_time;
1159 int next_quarter_frame_to_send;
1161 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1162 framecnt_t _frames_per_hour;
1163 framecnt_t _timecode_frames_per_hour;
1165 /* cache the most-recently requested time conversions. This helps when we
1166 * have multiple clocks showing the same time (e.g. the transport frame) */
1167 bool last_timecode_valid;
1168 framepos_t last_timecode_when;
1169 Timecode::Time last_timecode;
1171 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1173 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1175 void reset_record_status ();
1177 int no_roll (pframes_t nframes);
1178 int fail_roll (pframes_t nframes);
1180 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1181 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1183 MidiControlUI* midi_control_ui;
1185 int start_midi_thread ();
1186 void terminate_midi_thread ();
1188 void set_play_loop (bool yn);
1189 void unset_play_loop ();
1190 void overwrite_some_buffers (Track *);
1191 void flush_all_inserts ();
1192 int micro_locate (framecnt_t distance);
1193 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1194 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1195 void force_locate (framepos_t frame, bool with_roll = false);
1196 void set_track_speed (Track *, double speed);
1197 void set_transport_speed (double speed, bool abort = false, bool clear_state = false);
1198 void stop_transport (bool abort = false, bool clear_state = false);
1199 void start_transport ();
1200 void realtime_stop (bool abort, bool clear_state);
1201 void non_realtime_start_scrub ();
1202 void non_realtime_set_speed ();
1203 void non_realtime_locate ();
1204 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1205 void non_realtime_overwrite (int entry_request_count, bool& finished);
1206 void post_transport ();
1207 void engine_halted ();
1208 void xrun_recovery ();
1210 TempoMap *_tempo_map;
1211 void tempo_map_changed (const PBD::PropertyChange&);
1213 /* edit/mix groups */
1215 int load_route_groups (const XMLNode&, int);
1217 std::list<RouteGroup *> _route_groups;
1218 RouteGroup* _all_route_group;
1222 boost::shared_ptr<Graph> route_graph;
1224 SerializedRCUManager<RouteList> routes;
1226 void add_routes (RouteList&, bool auto_connect, bool save);
1227 uint32_t destructive_index;
1229 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1230 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1232 void route_processors_changed (RouteProcessorChange);
1234 bool find_route_name (std::string const &, uint32_t& id, char* name, size_t name_len, bool);
1235 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1236 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1237 bool with_lock, bool connect_inputs = true,
1238 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1239 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1243 bool solo_update_disabled;
1245 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1246 void route_mute_changed (void *src);
1247 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1248 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1249 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1251 void listen_position_changed ();
1252 void solo_control_mode_changed ();
1254 /* REGION MANAGEMENT */
1256 mutable Glib::Mutex region_lock;
1258 int load_regions (const XMLNode& node);
1260 void route_group_changed ();
1264 mutable Glib::Mutex source_lock;
1267 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1273 SourceMap get_sources() { return sources; }
1276 int load_sources (const XMLNode& node);
1277 XMLNode& get_sources_as_xml ();
1279 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1283 void remove_playlist (boost::weak_ptr<Playlist>);
1284 void track_playlist_changed (boost::weak_ptr<Track>);
1285 void playlist_region_added (boost::weak_ptr<Region>);
1286 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1287 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1289 /* NAMED SELECTIONS */
1291 mutable Glib::Mutex named_selection_lock;
1292 typedef std::set<boost::shared_ptr<NamedSelection> > NamedSelectionList;
1293 NamedSelectionList named_selections;
1295 int load_named_selections (const XMLNode&);
1297 NamedSelection *named_selection_factory (std::string name);
1298 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1300 /* CURVES and AUTOMATION LISTS */
1301 std::map<PBD::ID, AutomationList*> automation_lists;
1303 /* DEFAULT FADE CURVES */
1305 float default_fade_steepness;
1306 float default_fade_msecs;
1310 boost::shared_ptr<Auditioner> auditioner;
1311 void set_audition (boost::shared_ptr<Region>);
1312 void non_realtime_set_audition ();
1313 boost::shared_ptr<Region> pending_audition_region;
1319 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1321 /* INSERT AND SEND MANAGEMENT */
1323 boost::dynamic_bitset<uint32_t> send_bitset;
1324 boost::dynamic_bitset<uint32_t> return_bitset;
1325 boost::dynamic_bitset<uint32_t> insert_bitset;
1329 struct space_and_path {
1330 uint32_t blocks; /* 4kB blocks */
1338 struct space_and_path_ascending_cmp {
1339 bool operator() (space_and_path a, space_and_path b) {
1340 return a.blocks > b.blocks;
1344 void setup_raid_path (std::string path);
1346 std::vector<space_and_path> session_dirs;
1347 std::vector<space_and_path>::iterator last_rr_session_dir;
1348 uint32_t _total_free_4k_blocks;
1349 Glib::Mutex space_lock;
1351 bool no_questions_about_missing_files;
1353 std::string get_best_session_directory_for_new_source ();
1355 mutable gint _playback_load;
1356 mutable gint _capture_load;
1360 SerializedRCUManager<BundleList> _bundles;
1361 XMLNode* _bundle_xml_node;
1362 int load_bundles (XMLNode const &);
1364 void reverse_track_buffers ();
1366 UndoHistory _history;
1367 /** current undo transaction, or 0 */
1368 UndoTransaction* _current_trans;
1369 /** GQuarks to describe the reversible commands that are currently in progress.
1370 * These may be nested, in which case more recently-started commands are toward
1371 * the front of the list.
1373 std::list<GQuark> _current_trans_quarks;
1375 void jack_timebase_callback (jack_transport_state_t, pframes_t, jack_position_t*, int);
1376 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1377 void reset_jack_connection (jack_client_t* jack);
1378 void process_rtop (SessionEvent*);
1380 void update_latency (bool playback);
1382 XMLNode& state(bool);
1388 boost::shared_ptr<IO> _click_io;
1390 Sample* click_emphasis_data;
1391 framecnt_t click_length;
1392 framecnt_t click_emphasis_length;
1393 mutable Glib::RWLock click_lock;
1395 static const Sample default_click[];
1396 static const framecnt_t default_click_length;
1397 static const Sample default_click_emphasis[];
1398 static const framecnt_t default_click_emphasis_length;
1401 void setup_click_sounds (int which);
1402 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1403 void clear_clicks ();
1404 void click (framepos_t start, framecnt_t nframes);
1406 std::vector<Route*> master_outs;
1408 /* range playback */
1410 std::list<AudioRange> current_audio_range;
1412 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1413 void unset_play_range ();
1418 boost::shared_ptr<Route> _master_out;
1419 boost::shared_ptr<Route> _monitor_out;
1423 long _vst_callback (VSTPlugin*,
1430 /* number of hardware ports we're using,
1431 based on max (requested,available)
1434 ChanCount n_physical_outputs;
1435 ChanCount n_physical_inputs;
1437 int find_all_sources (std::string path, std::set<std::string>& result);
1438 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1440 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1441 Glib::Mutex controllables_lock;
1442 Controllables controllables;
1444 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1446 void reset_native_file_format();
1447 bool first_file_data_format_reset;
1448 bool first_file_header_format_reset;
1450 void config_changed (std::string, bool);
1452 XMLNode& get_control_protocol_state ();
1454 void set_history_depth (uint32_t depth);
1455 void sync_order_keys ();
1457 static bool _disable_all_loaded_plugins;
1459 SessionMetadata * _metadata;
1461 mutable bool have_looped; ///< Used in ::audible_frame(*)
1463 void update_have_rec_enabled_track ();
1464 gint _have_rec_enabled_track;
1466 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1468 /* realtime "apply to set of routes" operations */
1469 SessionEvent* get_rt_event (
1470 boost::shared_ptr<RouteList> rl, bool yn,
1471 SessionEvent::RTeventCallback after, bool group_override,
1472 void (Session::*method) (boost::shared_ptr<RouteList>, bool, bool));
1474 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1475 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1476 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1477 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1478 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1479 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1481 /** temporary list of Diskstreams used only during load of 2.X sessions */
1482 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1484 void add_session_range_location (framepos_t, framepos_t);
1486 void setup_midi_machine_control ();
1488 void route_order_key_changed ();
1490 void step_edit_status_change (bool);
1491 uint32_t _step_editors;
1493 /** true if timecode transmission by the transport is suspended, otherwise false */
1494 mutable gint _suspend_timecode_transmission;
1496 void update_locations_after_tempo_map_change (Locations::LocationList &);
1498 void start_time_changed (framepos_t);
1499 void end_time_changed (framepos_t);
1501 void set_track_monitor_input_status (bool);
1502 framepos_t compute_stop_limit () const;
1504 boost::shared_ptr<Speakers> _speakers;
1507 } // namespace ARDOUR
1509 #endif /* __ardour_session_h__ */