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);
242 bool route_name_unique (std::string) const;
243 bool route_name_internal (std::string) const;
245 bool get_record_enabled() const {
246 return (record_status () >= Enabled);
249 RecordState record_status() const {
250 return (RecordState) g_atomic_int_get (&_record_status);
253 bool actively_recording () const {
254 return record_status() == Recording;
257 bool record_enabling_legal () const;
258 void maybe_enable_record ();
259 void disable_record (bool rt_context, bool force = false);
260 void step_back_from_record ();
262 void maybe_write_autosave ();
264 /* Emitted when all i/o connections are complete */
266 PBD::Signal0<void> IOConnectionsComplete;
268 /* Record status signals */
270 PBD::Signal0<void> RecordStateChanged;
272 /* Transport mechanism signals */
274 /** Emitted on the following changes in transport state:
275 * - stop (from the butler thread)
276 * - change in whether or not we are looping (from the process thread)
277 * - change in the play range (from the process thread)
278 * - start (from the process thread)
281 PBD::Signal0<void> TransportStateChange;
283 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
284 PBD::Signal1<void,framepos_t> Xrun;
285 PBD::Signal0<void> TransportLooped;
287 /** emitted when a locate has occurred */
288 PBD::Signal0<void> Located;
290 PBD::Signal1<void,RouteList&> RouteAdded;
291 /** Emitted when anything about any of our route groups changes */
292 PBD::Signal0<void> RouteGroupChanged;
294 /* Step Editing status changed */
295 PBD::Signal1<void,bool> StepEditStatusChange;
297 void queue_event (SessionEvent*);
299 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
300 void request_bounded_roll (framepos_t start, framepos_t end);
301 void request_stop (bool abort = false, bool clear_state = false);
302 void request_locate (framepos_t frame, bool with_roll = false);
304 void request_play_loop (bool yn, bool leave_rolling = false);
305 bool get_play_loop () const { return play_loop; }
307 framepos_t last_transport_start () const { return _last_roll_location; }
310 void use_rf_shuttle_speed ();
311 void allow_auto_play (bool yn);
312 void request_transport_speed (double speed);
313 void request_transport_speed_nonzero (double);
314 void request_overwrite_buffer (Track *);
315 void adjust_playback_buffering();
316 void adjust_capture_buffering();
317 void request_track_speed (Track *, double speed);
318 void request_input_change_handling ();
320 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
321 bool transport_locked () const;
325 framepos_t current_end_frame () const;
326 framepos_t current_start_frame () const;
327 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
328 framecnt_t frame_rate () const { return _current_frame_rate; }
329 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
330 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
331 framecnt_t frames_per_hour () const { return _frames_per_hour; }
333 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
334 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
336 MIDI::byte get_mtc_timecode_bits() const {
337 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
340 float timecode_frames_per_second() const;
341 bool timecode_drop_frames() const;
345 Locations *locations() { return _locations; }
347 PBD::Signal1<void,Location*> auto_loop_location_changed;
348 PBD::Signal1<void,Location*> auto_punch_location_changed;
349 PBD::Signal0<void> locations_modified;
351 void set_auto_punch_location (Location *);
352 void set_auto_loop_location (Location *);
353 int location_name(std::string& result, std::string base = std::string(""));
355 void reset_input_monitor_state ();
357 pframes_t get_block_size() const { return current_block_size; }
358 framecnt_t worst_output_latency () const { return _worst_output_latency; }
359 framecnt_t worst_input_latency () const { return _worst_input_latency; }
360 framecnt_t worst_track_latency () const { return _worst_track_latency; }
361 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
363 #ifdef HAVE_JACK_SESSION
364 void jack_session_event (jack_session_event_t* event);
366 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false);
367 int restore_state (std::string snapshot_name);
368 int save_template (std::string template_name);
369 int save_history (std::string snapshot_name = "");
370 int restore_history (std::string snapshot_name);
371 void remove_state (std::string snapshot_name);
372 void rename_state (std::string old_name, std::string new_name);
373 void remove_pending_capture_state ();
375 static int rename_template (std::string old_name, std::string new_name);
376 static int delete_template (std::string name);
378 PBD::Signal1<void,std::string> StateSaved;
379 PBD::Signal0<void> StateReady;
381 std::vector<std::string*>* possible_states() const;
382 static std::vector<std::string*>* possible_states (std::string path);
384 XMLNode& get_state();
385 int set_state(const XMLNode& node, int version); // not idempotent
386 XMLNode& get_template();
388 /// The instant xml file is written to the session directory
389 void add_instant_xml (XMLNode&, bool write_to_config = true);
390 XMLNode* instant_xml (const std::string& str);
392 enum StateOfTheState {
397 InitialConnecting = 0x8,
402 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
404 void add_route_group (RouteGroup *);
405 void remove_route_group (RouteGroup&);
406 void reorder_route_groups (std::list<RouteGroup*>);
408 RouteGroup* route_group_by_name (std::string);
409 RouteGroup& all_route_group() const;
411 PBD::Signal1<void,RouteGroup*> route_group_added;
412 PBD::Signal0<void> route_group_removed;
413 PBD::Signal0<void> route_groups_reordered;
415 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
416 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
421 std::list<RouteGroup*> const & route_groups () const {
422 return _route_groups;
425 /* fundamental operations. duh. */
427 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
430 TrackMode mode = Normal,
431 RouteGroup* route_group = 0,
432 uint32_t how_many = 1,
433 std::string name_template = ""
436 RouteList new_audio_route (
437 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
440 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
441 TrackMode mode = Normal, RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
444 void remove_route (boost::shared_ptr<Route>);
445 void resort_routes ();
446 void resort_routes_using (boost::shared_ptr<RouteList>);
448 void set_remote_control_ids();
450 AudioEngine & engine() { return _engine; }
451 AudioEngine const & engine () const { return _engine; }
455 framepos_t transport_frame () const {return _transport_frame; }
456 framepos_t audible_frame () const;
457 framepos_t requested_return_frame() const { return _requested_return_frame; }
471 void sync_time_vars();
473 void bbt_time (framepos_t when, Timecode::BBT_Time&);
474 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
475 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
476 void timecode_time (Timecode::Time &);
477 void timecode_time (framepos_t when, Timecode::Time&);
478 void timecode_time_subframes (framepos_t when, Timecode::Time&);
480 void timecode_duration (framecnt_t, Timecode::Time&) const;
481 void timecode_duration_string (char *, framecnt_t) const;
483 framecnt_t convert_to_frames (AnyTime const & position);
484 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
486 static PBD::Signal1<void, framepos_t> StartTimeChanged;
487 static PBD::Signal1<void, framepos_t> EndTimeChanged;
489 std::vector<SyncSource> get_available_sync_options() const;
490 void request_sync_source (Slave*);
491 bool synced_to_jack() const { return config.get_external_sync() && config.get_sync_source() == JACK; }
493 double transport_speed() const { return _transport_speed; }
494 bool transport_stopped() const { return _transport_speed == 0.0f; }
495 bool transport_rolling() const { return _transport_speed != 0.0f; }
497 void set_silent (bool yn);
498 bool silent () { return _silent; }
500 TempoMap& tempo_map() { return *_tempo_map; }
502 /// signals the current transport position in frames, bbt and timecode time (in that order)
503 PBD::Signal3<void, const framepos_t &, const Timecode::BBT_Time&, const Timecode::Time&> tick;
507 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
509 std::string path_from_region_name (DataType type, std::string name, std::string identifier);
511 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
512 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
513 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
515 /* source management */
517 void import_audiofiles (ImportStatus&);
518 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
519 std::string build_tmp_convert_name (std::string file);
521 boost::shared_ptr<ExportHandler> get_export_handler ();
522 boost::shared_ptr<ExportStatus> get_export_status ();
524 int start_audio_export (framepos_t position, bool realtime);
526 PBD::Signal1<int, framecnt_t> ProcessExport;
527 static PBD::Signal2<void,std::string, std::string> Exported;
529 void add_source (boost::shared_ptr<Source>);
530 void remove_source (boost::weak_ptr<Source>);
532 void cleanup_regions();
533 int cleanup_sources (CleanupReport&);
534 int cleanup_trash_sources (CleanupReport&);
536 int destroy_sources (std::list<boost::shared_ptr<Source> >);
538 int remove_last_capture ();
540 /** handlers should return -1 for "stop cleanup",
541 0 for "yes, delete this playlist",
542 1 for "no, don't delete this playlist".
544 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
546 /** handlers should return 0 for "ignore the rate mismatch",
547 !0 for "do not use this session"
549 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
551 /** handlers should return !0 for use pending state, 0 for ignore it.
553 static PBD::Signal0<int> AskAboutPendingState;
555 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
556 size_t, std::string const &, uint32_t, bool destructive);
558 boost::shared_ptr<MidiSource> create_midi_source_for_session (
559 Track*, std::string const &);
561 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
562 boost::shared_ptr<Source> source_by_path_and_channel (const std::string&, uint16_t);
563 uint32_t count_sources_by_origin (const std::string&);
565 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
567 /* named selections */
569 boost::shared_ptr<NamedSelection> named_selection_by_name (std::string name);
570 void add_named_selection (boost::shared_ptr<NamedSelection>);
571 void remove_named_selection (boost::shared_ptr<NamedSelection>);
573 template<class T> void foreach_named_selection (T& obj, void (T::*func)(boost::shared_ptr<NamedSelection>));
574 PBD::Signal0<void> NamedSelectionAdded;
575 PBD::Signal0<void> NamedSelectionRemoved;
577 /* Curves and AutomationLists (TODO when they go away) */
578 void add_automation_list(AutomationList*);
582 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
583 void audition_playlist ();
584 void audition_region (boost::shared_ptr<Region>);
585 void cancel_audition ();
586 bool is_auditioning () const;
588 PBD::Signal1<void,bool> AuditionActive;
590 /* flattening stuff */
592 boost::shared_ptr<Region> write_one_track (AudioTrack&, framepos_t start, framepos_t end,
593 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
594 bool enable_processing = true);
595 int freeze_all (InterThreadInfo&);
597 /* session-wide solo/mute/rec-enable */
599 bool soloing() const { return _non_soloed_outs_muted; }
600 bool listening() const { return _listen_cnt > 0; }
601 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
603 static const SessionEvent::RTeventCallback rt_cleanup;
605 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
606 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
607 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
608 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
609 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
610 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
612 PBD::Signal1<void,bool> SoloActive;
613 PBD::Signal0<void> SoloChanged;
614 PBD::Signal0<void> IsolatedChanged;
616 /* control/master out */
618 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
619 boost::shared_ptr<Route> master_out() const { return _master_out; }
621 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
622 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
623 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
624 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
625 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
627 static void set_disable_all_loaded_plugins (bool yn) {
628 _disable_all_loaded_plugins = yn;
630 static bool get_disable_all_loaded_plugins() {
631 return _disable_all_loaded_plugins;
634 uint32_t next_send_id();
635 uint32_t next_return_id();
636 uint32_t next_insert_id();
637 void mark_send_id (uint32_t);
638 void mark_return_id (uint32_t);
639 void mark_insert_id (uint32_t);
640 void unmark_send_id (uint32_t);
641 void unmark_return_id (uint32_t);
642 void unmark_insert_id (uint32_t);
644 /* s/w "RAID" management */
646 framecnt_t available_capture_duration();
650 void add_bundle (boost::shared_ptr<Bundle>);
651 void remove_bundle (boost::shared_ptr<Bundle>);
652 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
654 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleAdded;
655 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleRemoved;
659 /* History (for editors, mixers, UIs etc.) */
661 /** Undo some transactions.
662 * @param n Number of transactions to undo.
664 void undo (uint32_t n) {
668 void redo (uint32_t n) {
672 UndoHistory& history() { return _history; }
674 uint32_t undo_depth() const { return _history.undo_depth(); }
675 uint32_t redo_depth() const { return _history.redo_depth(); }
676 std::string next_undo() const { return _history.next_undo(); }
677 std::string next_redo() const { return _history.next_redo(); }
679 void begin_reversible_command (const std::string& cmd_name);
680 void begin_reversible_command (GQuark);
681 void commit_reversible_command (Command* cmd = 0);
683 void add_command (Command *const cmd) {
684 assert (_current_trans);
685 _current_trans->add_command (cmd);
688 /** @return The list of operations that are currently in progress */
689 std::list<GQuark> const & current_operations () {
690 return _current_trans_quarks;
693 void add_commands (std::vector<Command*> const & cmds);
695 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
697 // these commands are implemented in libs/ardour/session_command.cc
698 Command* memento_command_factory(XMLNode* n);
699 Command* stateful_diff_command_factory (XMLNode *);
700 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
704 boost::shared_ptr<IO> click_io() { return _click_io; }
706 /* disk, buffer loads */
708 uint32_t playback_load ();
709 uint32_t capture_load ();
713 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
714 bool get_play_range () const { return _play_range; }
716 /* buffers for gain and pan */
718 gain_t* gain_automation_buffer () const;
719 pan_t** pan_automation_buffer () const;
721 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
725 static long vst_callback (AEffect* effect,
732 static PBD::Signal0<void> SendFeedback;
736 boost::shared_ptr<Speakers> get_speakers ();
740 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
741 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
743 void add_controllable (boost::shared_ptr<PBD::Controllable>);
744 void remove_controllable (PBD::Controllable*);
746 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
748 SessionMetadata & metadata () { return *_metadata; }
750 SessionConfiguration config;
752 bool exporting () const {
756 /* this is a private enum, but setup_enum_writer() needs it,
757 and i can't find a way to give that function
761 enum PostTransportWork {
762 PostTransportStop = 0x1,
763 PostTransportDisableRecord = 0x2,
764 PostTransportPosition = 0x8,
765 PostTransportDidRecord = 0x20,
766 PostTransportDuration = 0x40,
767 PostTransportLocate = 0x80,
768 PostTransportRoll = 0x200,
769 PostTransportAbort = 0x800,
770 PostTransportOverWrite = 0x1000,
771 PostTransportSpeed = 0x2000,
772 PostTransportAudition = 0x4000,
773 PostTransportScrub = 0x8000,
774 PostTransportReverse = 0x10000,
775 PostTransportInputChange = 0x20000,
776 PostTransportCurveRealloc = 0x40000,
777 PostTransportClearSubstate = 0x80000,
778 PostTransportAdjustPlaybackBuffering = 0x100000,
779 PostTransportAdjustCaptureBuffering = 0x200000
788 SlaveState slave_state() const { return _slave_state; }
790 boost::shared_ptr<SessionPlaylists> playlists;
792 void send_mmc_locate (framepos_t);
793 int send_full_time_code (framepos_t);
795 PBD::Signal0<void> RouteOrderKeyChanged;
797 bool step_editing() const { return (_step_editors > 0); }
799 void request_suspend_timecode_transmission ();
800 void request_resume_timecode_transmission ();
801 bool timecode_transmission_suspended () const;
803 std::string source_search_path(DataType) const;
804 void ensure_search_path_includes (const std::string& path, DataType type);
806 std::list<std::string> unknown_processors () const;
808 /* handlers can return an integer value:
809 0: config.set_audio_search_path() or config.set_midi_search_path() was used
810 to modify the search path and we should try to find it again.
811 1: quit entire session load
812 2: as 0, but don't ask about other missing files
813 3: don't ask about other missing files, and just mark this one missing
814 -1: just mark this one missing
815 any other value: as -1
817 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
819 /** Emitted when the session wants Ardour to quit */
820 static PBD::Signal0<void> Quit;
823 friend class AudioEngine;
824 void set_block_size (pframes_t nframes);
825 void set_frame_rate (framecnt_t nframes);
829 void schedule_curve_reallocation ();
830 void update_latency_compensation (bool force = false);
833 int create (const std::string& mix_template, BusProfile*);
837 PendingDeclickIn = 0x1,
838 PendingDeclickOut = 0x2,
839 StopPendingCapture = 0x4,
840 PendingLocate = 0x20,
843 /* stuff used in process() should be close together to
847 typedef void (Session::*process_function_type)(pframes_t);
849 AudioEngine& _engine;
850 mutable gint processing_prohibited;
851 process_function_type process_function;
852 process_function_type last_process_function;
853 bool waiting_for_sync_offset;
854 framecnt_t _base_frame_rate;
855 framecnt_t _current_frame_rate; //this includes video pullup offset
856 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
857 int transport_sub_state;
858 mutable gint _record_status;
859 framepos_t _transport_frame;
860 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
864 void maybe_update_session_range (framepos_t, framepos_t);
866 // varispeed playback
867 double _transport_speed;
868 double _last_transport_speed;
869 double _target_transport_speed;
870 CubicInterpolation interpolation;
872 bool auto_play_legal;
873 framepos_t _last_slave_transport_frame;
874 framecnt_t maximum_output_latency;
875 framepos_t _requested_return_frame;
876 pframes_t current_block_size;
877 framecnt_t _worst_output_latency;
878 framecnt_t _worst_input_latency;
879 framecnt_t _worst_track_latency;
882 float _meter_falloff;
883 bool _non_soloed_outs_muted;
884 uint32_t _listen_cnt;
885 uint32_t _solo_isolated_cnt;
889 void set_worst_io_latencies ();
890 void set_worst_playback_latency ();
891 void set_worst_capture_latency ();
892 void set_worst_io_latencies_x (IOChange, void *) {
893 set_worst_io_latencies ();
895 void post_capture_latency ();
896 void post_playback_latency ();
898 void update_latency_compensation_proxy (void* ignored);
900 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
902 void process_scrub (pframes_t);
903 void process_without_events (pframes_t);
904 void process_with_events (pframes_t);
905 void process_audition (pframes_t);
906 void process_export (pframes_t);
907 int process_export_fw (pframes_t);
909 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
910 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
911 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
913 Glib::Mutex process_thread_lock;
914 std::list<ProcessThread*> process_threads;
918 static const int delta_accumulator_size = 25;
919 int delta_accumulator_cnt;
920 int32_t delta_accumulator[delta_accumulator_size];
921 int32_t average_slave_delta;
923 bool have_first_delta_accumulator;
925 SlaveState _slave_state;
926 framepos_t slave_wait_end;
928 void reset_slave_state ();
929 bool follow_slave (pframes_t);
930 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
931 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
932 void follow_slave_silently (pframes_t nframes, float slave_speed);
934 void switch_to_sync_source (SyncSource); /* !RT context */
935 void drop_sync_source (); /* !RT context */
936 void use_sync_source (Slave*); /* RT context */
938 bool post_export_sync;
939 framepos_t post_export_position;
942 bool _export_rolling;
944 boost::shared_ptr<ExportHandler> export_handler;
945 boost::shared_ptr<ExportStatus> export_status;
948 int stop_audio_export ();
949 void finalize_audio_export ();
951 PBD::ScopedConnection export_freewheel_connection;
953 void get_track_statistics ();
954 int process_routes (pframes_t, bool& need_butler);
955 int silent_process_routes (pframes_t, bool& need_butler);
957 bool get_rec_monitors_input () {
958 if (actively_recording()) {
961 if (config.get_auto_input()) {
969 int get_transport_declick_required () {
970 if (transport_sub_state & PendingDeclickIn) {
971 transport_sub_state &= ~PendingDeclickIn;
973 } else if (transport_sub_state & PendingDeclickOut) {
980 bool maybe_stop (framepos_t limit);
981 bool maybe_sync_start (pframes_t &);
983 void check_declick_out ();
989 /** Number of process frames since the last MTC output (when sending MTC); used to
990 * know when to send full MTC messages every so often.
992 pframes_t _pframes_since_last_mtc;
993 bool session_midi_feedback;
996 framepos_t last_loopend;
998 boost::scoped_ptr<SessionDirectory> _session_dir;
1001 void when_engine_running ();
1002 void graph_reordered ();
1004 /** current snapshot name, without the .ardour suffix */
1005 std::string _current_snapshot_name;
1007 XMLTree* state_tree;
1008 bool state_was_pending;
1009 StateOfTheState _state_of_the_state;
1012 int load_options (const XMLNode&);
1013 int load_state (std::string snapshot_name);
1015 framepos_t _last_roll_location;
1016 framepos_t _last_roll_or_reversal_location;
1017 framepos_t _last_record_location;
1019 bool pending_locate_roll;
1020 framepos_t pending_locate_frame;
1021 bool pending_locate_flush;
1023 bool pending_auto_loop;
1027 #if 0 // these should be here, see comments in their other location above
1028 enum PostTransportWork {
1029 PostTransportStop = 0x1,
1030 PostTransportDisableRecord = 0x2,
1031 PostTransportPosition = 0x8,
1032 PostTransportDidRecord = 0x20,
1033 PostTransportDuration = 0x40,
1034 PostTransportLocate = 0x80,
1035 PostTransportRoll = 0x200,
1036 PostTransportAbort = 0x800,
1037 PostTransportOverWrite = 0x1000,
1038 PostTransportSpeed = 0x2000,
1039 PostTransportAudition = 0x4000,
1040 PostTransportScrub = 0x8000,
1041 PostTransportReverse = 0x10000,
1042 PostTransportInputChange = 0x20000,
1043 PostTransportCurveRealloc = 0x40000,
1044 PostTransportClearSubstate = 0x80000
1047 static const PostTransportWork ProcessCannotProceedMask =
1049 PostTransportInputChange|
1051 PostTransportReverse|
1052 PostTransportCurveRealloc|
1054 PostTransportAudition|
1055 PostTransportLocate|
1057 PostTransportClearSubstate);
1059 gint _post_transport_work; /* accessed only atomic ops */
1060 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (&_post_transport_work); }
1061 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1062 void add_post_transport_work (PostTransportWork ptw);
1064 void schedule_playback_buffering_adjustment ();
1065 void schedule_capture_buffering_adjustment ();
1067 uint32_t cumulative_rf_motion;
1070 void set_rf_speed (float speed);
1071 void reset_rf_scale (framecnt_t frames_moved);
1073 Locations* _locations;
1074 void locations_changed ();
1075 void locations_added (Location*);
1076 void handle_locations_changed (Locations::LocationList&);
1078 PBD::ScopedConnectionList punch_connections;
1079 void auto_punch_start_changed (Location *);
1080 void auto_punch_end_changed (Location *);
1081 void auto_punch_changed (Location *);
1083 PBD::ScopedConnectionList loop_connections;
1084 void auto_loop_changed (Location *);
1086 void first_stage_init (std::string path, std::string snapshot_name);
1087 int second_stage_init ();
1088 void remove_empty_sounds ();
1090 void setup_midi_control ();
1091 int midi_read (MIDI::Port *);
1093 void enable_record ();
1095 void increment_transport_position (framecnt_t val) {
1096 if (max_framepos - val < _transport_frame) {
1097 _transport_frame = max_framepos;
1099 _transport_frame += val;
1103 void decrement_transport_position (framecnt_t val) {
1104 if (val < _transport_frame) {
1105 _transport_frame -= val;
1107 _transport_frame = 0;
1111 void post_transport_motion ();
1112 static void *session_loader_thread (void *arg);
1116 /* SessionEventManager interface */
1118 void process_event (SessionEvent*);
1119 void set_next_event ();
1120 void cleanup_event (SessionEvent*,int);
1122 /* MIDI Machine Control */
1124 void spp_start (MIDI::Parser&, framepos_t timestamp);
1125 void spp_continue (MIDI::Parser&, framepos_t timestamp);
1126 void spp_stop (MIDI::Parser&, framepos_t timestamp);
1128 void mmc_deferred_play (MIDI::MachineControl &);
1129 void mmc_stop (MIDI::MachineControl &);
1130 void mmc_step (MIDI::MachineControl &, int);
1131 void mmc_pause (MIDI::MachineControl &);
1132 void mmc_record_pause (MIDI::MachineControl &);
1133 void mmc_record_strobe (MIDI::MachineControl &);
1134 void mmc_record_exit (MIDI::MachineControl &);
1135 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1136 void mmc_fast_forward (MIDI::MachineControl &);
1137 void mmc_rewind (MIDI::MachineControl &);
1138 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1139 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1140 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1142 struct timeval last_mmc_step;
1145 typedef boost::function<bool()> MidiTimeoutCallback;
1146 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1148 MidiTimeoutList midi_timeouts;
1149 bool mmc_step_timeout ();
1151 MIDI::byte mtc_msg[16];
1152 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1153 MIDI::byte midi_msg[16];
1154 framepos_t outbound_mtc_timecode_frame;
1155 Timecode::Time transmitting_timecode_time;
1156 int next_quarter_frame_to_send;
1158 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1159 framecnt_t _frames_per_hour;
1160 framecnt_t _timecode_frames_per_hour;
1162 /* cache the most-recently requested time conversions. This helps when we
1163 * have multiple clocks showing the same time (e.g. the transport frame) */
1164 bool last_timecode_valid;
1165 framepos_t last_timecode_when;
1166 Timecode::Time last_timecode;
1168 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1170 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1172 void reset_record_status ();
1174 int no_roll (pframes_t nframes);
1175 int fail_roll (pframes_t nframes);
1177 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1178 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1180 MidiControlUI* midi_control_ui;
1182 int start_midi_thread ();
1183 void terminate_midi_thread ();
1185 void set_play_loop (bool yn);
1186 void unset_play_loop ();
1187 void overwrite_some_buffers (Track *);
1188 void flush_all_inserts ();
1189 int micro_locate (framecnt_t distance);
1190 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1191 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1192 void force_locate (framepos_t frame, bool with_roll = false);
1193 void set_track_speed (Track *, double speed);
1194 void set_transport_speed (double speed, bool abort = false, bool clear_state = false);
1195 void stop_transport (bool abort = false, bool clear_state = false);
1196 void start_transport ();
1197 void realtime_stop (bool abort, bool clear_state);
1198 void non_realtime_start_scrub ();
1199 void non_realtime_set_speed ();
1200 void non_realtime_locate ();
1201 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1202 void non_realtime_overwrite (int entry_request_count, bool& finished);
1203 void post_transport ();
1204 void engine_halted ();
1205 void xrun_recovery ();
1207 TempoMap *_tempo_map;
1208 void tempo_map_changed (const PBD::PropertyChange&);
1210 /* edit/mix groups */
1212 int load_route_groups (const XMLNode&, int);
1214 std::list<RouteGroup *> _route_groups;
1215 RouteGroup* _all_route_group;
1219 boost::shared_ptr<Graph> route_graph;
1221 SerializedRCUManager<RouteList> routes;
1223 void add_routes (RouteList&, bool auto_connect, bool save);
1224 uint32_t destructive_index;
1226 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1227 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1229 void route_processors_changed (RouteProcessorChange);
1231 bool find_route_name (std::string const &, uint32_t& id, char* name, size_t name_len, bool);
1232 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1233 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1234 bool with_lock, bool connect_inputs = true,
1235 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1236 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1240 bool solo_update_disabled;
1242 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1243 void route_mute_changed (void *src);
1244 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1245 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1246 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1248 void listen_position_changed ();
1249 void solo_control_mode_changed ();
1251 /* REGION MANAGEMENT */
1253 mutable Glib::Mutex region_lock;
1255 int load_regions (const XMLNode& node);
1256 int load_compounds (const XMLNode& node);
1258 void route_group_changed ();
1262 mutable Glib::Mutex source_lock;
1265 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1271 SourceMap get_sources() { return sources; }
1274 int load_sources (const XMLNode& node);
1275 XMLNode& get_sources_as_xml ();
1277 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1281 void remove_playlist (boost::weak_ptr<Playlist>);
1282 void track_playlist_changed (boost::weak_ptr<Track>);
1283 void playlist_region_added (boost::weak_ptr<Region>);
1284 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1285 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1287 /* NAMED SELECTIONS */
1289 mutable Glib::Mutex named_selection_lock;
1290 typedef std::set<boost::shared_ptr<NamedSelection> > NamedSelectionList;
1291 NamedSelectionList named_selections;
1293 int load_named_selections (const XMLNode&);
1295 NamedSelection *named_selection_factory (std::string name);
1296 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1298 /* CURVES and AUTOMATION LISTS */
1299 std::map<PBD::ID, AutomationList*> automation_lists;
1301 /* DEFAULT FADE CURVES */
1303 float default_fade_steepness;
1304 float default_fade_msecs;
1308 boost::shared_ptr<Auditioner> auditioner;
1309 void set_audition (boost::shared_ptr<Region>);
1310 void non_realtime_set_audition ();
1311 boost::shared_ptr<Region> pending_audition_region;
1317 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1319 /* INSERT AND SEND MANAGEMENT */
1321 boost::dynamic_bitset<uint32_t> send_bitset;
1322 boost::dynamic_bitset<uint32_t> return_bitset;
1323 boost::dynamic_bitset<uint32_t> insert_bitset;
1327 struct space_and_path {
1328 uint32_t blocks; /* 4kB blocks */
1336 struct space_and_path_ascending_cmp {
1337 bool operator() (space_and_path a, space_and_path b) {
1338 return a.blocks > b.blocks;
1342 void setup_raid_path (std::string path);
1344 std::vector<space_and_path> session_dirs;
1345 std::vector<space_and_path>::iterator last_rr_session_dir;
1346 uint32_t _total_free_4k_blocks;
1347 Glib::Mutex space_lock;
1349 bool no_questions_about_missing_files;
1351 std::string get_best_session_directory_for_new_source ();
1353 mutable gint _playback_load;
1354 mutable gint _capture_load;
1358 SerializedRCUManager<BundleList> _bundles;
1359 XMLNode* _bundle_xml_node;
1360 int load_bundles (XMLNode const &);
1362 void reverse_track_buffers ();
1364 UndoHistory _history;
1365 /** current undo transaction, or 0 */
1366 UndoTransaction* _current_trans;
1367 /** GQuarks to describe the reversible commands that are currently in progress.
1368 * These may be nested, in which case more recently-started commands are toward
1369 * the front of the list.
1371 std::list<GQuark> _current_trans_quarks;
1373 void jack_timebase_callback (jack_transport_state_t, pframes_t, jack_position_t*, int);
1374 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1375 void reset_jack_connection (jack_client_t* jack);
1376 void process_rtop (SessionEvent*);
1378 void update_latency (bool playback);
1380 XMLNode& state(bool);
1386 boost::shared_ptr<IO> _click_io;
1388 Sample* click_emphasis_data;
1389 framecnt_t click_length;
1390 framecnt_t click_emphasis_length;
1391 mutable Glib::RWLock click_lock;
1393 static const Sample default_click[];
1394 static const framecnt_t default_click_length;
1395 static const Sample default_click_emphasis[];
1396 static const framecnt_t default_click_emphasis_length;
1399 void setup_click_sounds (int which);
1400 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1401 void clear_clicks ();
1402 void click (framepos_t start, framecnt_t nframes);
1404 std::vector<Route*> master_outs;
1406 /* range playback */
1408 std::list<AudioRange> current_audio_range;
1410 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1411 void unset_play_range ();
1416 boost::shared_ptr<Route> _master_out;
1417 boost::shared_ptr<Route> _monitor_out;
1421 long _vst_callback (VSTPlugin*,
1428 /* number of hardware ports we're using,
1429 based on max (requested,available)
1432 ChanCount n_physical_outputs;
1433 ChanCount n_physical_inputs;
1435 int find_all_sources (std::string path, std::set<std::string>& result);
1436 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1438 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1439 Glib::Mutex controllables_lock;
1440 Controllables controllables;
1442 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1444 void reset_native_file_format();
1445 bool first_file_data_format_reset;
1446 bool first_file_header_format_reset;
1448 void config_changed (std::string, bool);
1450 XMLNode& get_control_protocol_state ();
1452 void set_history_depth (uint32_t depth);
1453 void sync_order_keys ();
1455 static bool _disable_all_loaded_plugins;
1457 SessionMetadata * _metadata;
1459 mutable bool have_looped; ///< Used in ::audible_frame(*)
1461 void update_have_rec_enabled_track ();
1462 gint _have_rec_enabled_track;
1464 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1466 /* realtime "apply to set of routes" operations */
1467 SessionEvent* get_rt_event (
1468 boost::shared_ptr<RouteList> rl, bool yn,
1469 SessionEvent::RTeventCallback after, bool group_override,
1470 void (Session::*method) (boost::shared_ptr<RouteList>, bool, bool));
1472 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1473 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1474 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1475 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1476 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1477 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1479 /** temporary list of Diskstreams used only during load of 2.X sessions */
1480 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1482 void add_session_range_location (framepos_t, framepos_t);
1484 void setup_midi_machine_control ();
1486 void route_order_key_changed ();
1488 void step_edit_status_change (bool);
1489 uint32_t _step_editors;
1491 /** true if timecode transmission by the transport is suspended, otherwise false */
1492 mutable gint _suspend_timecode_transmission;
1494 void update_locations_after_tempo_map_change (Locations::LocationList &);
1496 void start_time_changed (framepos_t);
1497 void end_time_changed (framepos_t);
1499 void set_track_monitor_input_status (bool);
1500 framepos_t compute_stop_limit () const;
1502 boost::shared_ptr<Speakers> _speakers;
1505 } // namespace ARDOUR
1507 #endif /* __ardour_session_h__ */