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/threads.h>
41 #include "pbd/error.h"
42 #include "pbd/event_loop.h"
44 #include "pbd/statefuldestructible.h"
45 #include "pbd/signals.h"
48 #include "evoral/types.hpp"
50 #include "midi++/types.h"
51 #include "midi++/mmc.h"
53 #include "timecode/time.h"
55 #include "ardour/ardour.h"
56 #include "ardour/chan_count.h"
57 #include "ardour/delivery.h"
58 #include "ardour/interthread_info.h"
59 #include "ardour/rc_configuration.h"
60 #include "ardour/session_configuration.h"
61 #include "ardour/session_event.h"
62 #include "ardour/location.h"
63 #include "ardour/interpolation.h"
64 #include "ardour/route_graph.h"
70 typedef struct _AEffect AEffect;
80 class ControllableDescriptor;
91 class AudioFileSource;
109 class MidiClockTicker;
111 class MidiPortManager;
130 class SessionDirectory;
131 class SessionMetadata;
132 class SessionPlaylists;
138 class WindowsVSTPlugin;
140 extern void setup_enum_writer ();
142 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
151 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
152 the bus profile can be null if no master out bus is required.
155 Session (AudioEngine&,
156 const std::string& fullpath,
157 const std::string& snapshot_name,
158 BusProfile* bus_profile = 0,
159 std::string mix_template = "");
163 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format);
165 std::string path() const { return _path; }
166 std::string name() const { return _name; }
167 std::string snap_name() const { return _current_snapshot_name; }
168 std::string raid_path () const;
169 bool path_is_within_session (const std::string&);
171 void set_snap_name ();
173 bool writable() const { return _writable; }
176 bool dirty() const { return _state_of_the_state & Dirty; }
177 void set_deletion_in_progress ();
178 void clear_deletion_in_progress ();
179 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
180 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
181 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
183 PBD::Signal0<void> DirtyChanged;
185 PBD::Signal1<void, bool> RouteAddedOrRemoved;
187 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
189 static PBD::Signal1<void,std::string> Dialog;
191 PBD::Signal0<void> BatchUpdateStart;
192 PBD::Signal0<void> BatchUpdateEnd;
194 int ensure_subdirs ();
196 std::string automation_dir () const; ///< Automation data
197 std::string analysis_dir () const; ///< Analysis data
198 std::string plugins_dir () const; ///< Plugin state
199 std::string externals_dir () const; ///< Links to external files
201 std::string peak_path (std::string) const;
203 std::string peak_path_from_audio_path (std::string) const;
204 bool audio_source_name_is_unique (const std::string& name);
205 std::string format_audio_source_name (const std::string& legalized_base, uint32_t nchan, uint32_t chan, bool destructive, bool take_required, uint32_t cnt, bool related_exists);
206 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
207 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
208 std::string new_midi_source_path (const std::string&);
209 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path, const std::string& name);
210 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path, uint32_t channels);
212 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
214 void process (pframes_t nframes);
216 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
217 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true );
218 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
219 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
221 bool have_rec_enabled_track () const;
222 bool have_rec_disabled_track () const;
224 bool have_captured() const { return _have_captured; }
226 void refill_all_track_buffers ();
227 Butler* butler() { return _butler; }
228 void butler_transport_work ();
230 void refresh_disk_space ();
232 int load_diskstreams_2X (XMLNode const &, int);
234 int load_routes (const XMLNode&, int);
235 boost::shared_ptr<RouteList> get_routes() const {
236 return routes.reader ();
239 boost::shared_ptr<RouteList> get_tracks() const;
240 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
241 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
243 uint32_t nroutes() const { return routes.reader()->size(); }
244 uint32_t ntracks () const;
245 uint32_t nbusses () const;
247 boost::shared_ptr<BundleList> bundles () {
248 return _bundles.reader ();
251 struct LIBARDOUR_API RoutePublicOrderSorter {
252 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
255 void set_order_hint (int32_t order_hint) {_order_hint = order_hint;};
256 void notify_remote_id_change ();
257 void sync_order_keys ();
259 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
260 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
261 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
263 static char session_name_is_legal (const std::string&);
264 bool io_name_is_legal (const std::string&);
265 boost::shared_ptr<Route> route_by_name (std::string);
266 boost::shared_ptr<Route> route_by_id (PBD::ID);
267 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
268 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID);
269 void routes_using_input_from (const std::string& str, RouteList& rl);
271 bool route_name_unique (std::string) const;
272 bool route_name_internal (std::string) const;
274 uint32_t track_number_decimals () const {
275 return _track_number_decimals;
278 bool get_record_enabled() const {
279 return (record_status () >= Enabled);
282 RecordState record_status() const {
283 return (RecordState) g_atomic_int_get (&_record_status);
286 bool actively_recording () const {
287 return record_status() == Recording;
290 bool record_enabling_legal () const;
291 void maybe_enable_record ();
292 void disable_record (bool rt_context, bool force = false);
293 void step_back_from_record ();
295 void maybe_write_autosave ();
297 /* Emitted when all i/o connections are complete */
299 PBD::Signal0<void> IOConnectionsComplete;
301 /* Timecode status signals */
302 PBD::Signal1<void, bool> MTCSyncStateChanged;
304 /* Record status signals */
306 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
307 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
308 from the previous signal and session state.
310 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
312 /* Emited when session is loaded */
313 PBD::Signal0<void> SessionLoaded;
315 /* Transport mechanism signals */
317 /** Emitted on the following changes in transport state:
318 * - stop (from the butler thread)
319 * - change in whether or not we are looping (from the process thread)
320 * - change in the play range (from the process thread)
321 * - start (from the process thread)
324 PBD::Signal0<void> TransportStateChange;
326 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
327 PBD::Signal1<void,framepos_t> Xrun;
328 PBD::Signal0<void> TransportLooped;
330 /** emitted when a locate has occurred */
331 PBD::Signal0<void> Located;
333 PBD::Signal1<void,RouteList&> RouteAdded;
334 /** Emitted when a property of one of our route groups changes.
335 * The parameter is the RouteGroup that has changed.
337 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
338 /** Emitted when a route is added to one of our route groups.
339 * First parameter is the RouteGroup, second is the route.
341 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
342 /** Emitted when a route is removed from one of our route groups.
343 * First parameter is the RouteGroup, second is the route.
345 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
347 /* Step Editing status changed */
348 PBD::Signal1<void,bool> StepEditStatusChange;
350 /* Timecode state signals */
351 PBD::Signal0<void> MtcOrLtcInputPortChanged;
353 void queue_event (SessionEvent*);
355 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
356 void request_bounded_roll (framepos_t start, framepos_t end);
357 void request_stop (bool abort = false, bool clear_state = false);
358 void request_locate (framepos_t frame, bool with_roll = false);
360 void request_play_loop (bool yn, bool leave_rolling = false);
361 bool get_play_loop () const { return play_loop; }
363 framepos_t last_transport_start () const { return _last_roll_location; }
366 void use_rf_shuttle_speed ();
367 void allow_auto_play (bool yn);
368 void request_transport_speed (double speed, bool as_default = false);
369 void request_transport_speed_nonzero (double, bool as_default = false);
370 void request_overwrite_buffer (Track *);
371 void adjust_playback_buffering();
372 void adjust_capture_buffering();
373 void request_track_speed (Track *, double speed);
374 void request_input_change_handling ();
376 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
377 bool transport_locked () const;
381 framepos_t current_end_frame () const;
382 framepos_t current_start_frame () const;
383 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
384 framecnt_t frame_rate () const { return _current_frame_rate; }
385 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
386 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
387 framecnt_t frames_per_hour () const { return _frames_per_hour; }
389 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
390 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
392 MIDI::byte get_mtc_timecode_bits() const {
393 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
396 double timecode_frames_per_second() const;
397 bool timecode_drop_frames() const;
401 Locations *locations() { return _locations; }
403 PBD::Signal1<void,Location*> auto_loop_location_changed;
404 PBD::Signal1<void,Location*> auto_punch_location_changed;
405 PBD::Signal0<void> locations_modified;
407 void set_auto_punch_location (Location *);
408 void set_auto_loop_location (Location *);
409 void set_session_extents (framepos_t start, framepos_t end);
410 int location_name(std::string& result, std::string base = std::string(""));
412 pframes_t get_block_size() const { return current_block_size; }
413 framecnt_t worst_output_latency () const { return _worst_output_latency; }
414 framecnt_t worst_input_latency () const { return _worst_input_latency; }
415 framecnt_t worst_track_latency () const { return _worst_track_latency; }
416 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
419 std::string new_parent_folder; /* parent folder where new session folder will be created */
420 std::string new_name; /* name of newly saved session */
421 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
422 bool include_media; /* true if the newly saved session should contain references to media */
423 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
424 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
426 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
428 /* emitted as we make progress. 3 arguments passed to signal
431 * 1: percentage complete measured as a fraction (0-1.0) of
432 * total data copying done.
433 * 2: number of files copied so far
434 * 3: total number of files to copy
436 * Handler should return true for save-as to continue, or false
437 * to stop (and remove all evidence of partial save-as).
439 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
441 /* if save_as() returns non-zero, this string will indicate the reason why.
443 std::string failure_message;
446 int save_as (SaveAs&);
447 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
448 int restore_state (std::string snapshot_name);
449 int save_template (std::string template_name);
450 int save_history (std::string snapshot_name = "");
451 int restore_history (std::string snapshot_name);
452 void remove_state (std::string snapshot_name);
453 void rename_state (std::string old_name, std::string new_name);
454 void remove_pending_capture_state ();
455 int rename (const std::string&);
456 bool get_nsm_state () const { return _under_nsm_control; }
457 void set_nsm_state (bool state) { _under_nsm_control = state; }
458 bool save_default_options ();
460 PBD::Signal1<void,std::string> StateSaved;
461 PBD::Signal0<void> StateReady;
463 /* emitted when session needs to be saved due to some internal
464 * event or condition (i.e. not in response to a user request).
466 * Only one object should
467 * connect to this signal and take responsibility.
469 * Argument is the snapshot name to use when saving.
471 PBD::Signal1<void,std::string> SaveSessionRequested;
473 /* emitted during a session save to allow other entities to add state, via
474 * extra XML, to the session state
476 PBD::Signal0<void> SessionSaveUnderway;
478 std::vector<std::string> possible_states() const;
479 static std::vector<std::string> possible_states (std::string path);
481 XMLNode& get_state();
482 int set_state(const XMLNode& node, int version); // not idempotent
483 XMLNode& get_template();
485 /// The instant xml file is written to the session directory
486 void add_instant_xml (XMLNode&, bool write_to_config = true);
487 XMLNode* instant_xml (const std::string& str);
489 enum StateOfTheState {
494 InitialConnecting = 0x8,
499 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
501 class StateProtector {
503 StateProtector (Session* s) : _session (s) {
504 g_atomic_int_inc (&s->_suspend_save);
507 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
508 while (_session->_save_queued) {
509 _session->_save_queued = false;
510 _session->save_state ("");
518 void add_route_group (RouteGroup *);
519 void remove_route_group (RouteGroup&);
520 void reorder_route_groups (std::list<RouteGroup*>);
522 RouteGroup* route_group_by_name (std::string);
523 RouteGroup& all_route_group() const;
525 PBD::Signal1<void,RouteGroup*> route_group_added;
526 PBD::Signal0<void> route_group_removed;
527 PBD::Signal0<void> route_groups_reordered;
529 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
530 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
535 std::list<RouteGroup*> const & route_groups () const {
536 return _route_groups;
539 /* fundamental operations. duh. */
541 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
544 TrackMode mode = Normal,
545 RouteGroup* route_group = 0,
546 uint32_t how_many = 1,
547 std::string name_template = ""
550 RouteList new_audio_route (
551 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
554 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
555 const ChanCount& input, const ChanCount& output,
556 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
557 TrackMode mode = Normal,
558 RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
561 void remove_routes (boost::shared_ptr<RouteList>);
562 void remove_route (boost::shared_ptr<Route>);
564 void resort_routes ();
565 void resort_routes_using (boost::shared_ptr<RouteList>);
567 AudioEngine & engine() { return _engine; }
568 AudioEngine const & engine () const { return _engine; }
570 static std::string default_track_name_pattern (DataType);
574 framepos_t transport_frame () const {return _transport_frame; }
575 framepos_t record_location () const {return _last_record_location; }
576 framepos_t audible_frame () const;
577 framepos_t requested_return_frame() const { return _requested_return_frame; }
578 void set_requested_return_frame(framepos_t return_to);
592 void sync_time_vars();
594 void bbt_time (framepos_t when, Timecode::BBT_Time&);
595 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
596 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
597 void timecode_time (Timecode::Time &);
598 void timecode_time (framepos_t when, Timecode::Time&);
599 void timecode_time_subframes (framepos_t when, Timecode::Time&);
601 void timecode_duration (framecnt_t, Timecode::Time&) const;
602 void timecode_duration_string (char *, size_t len, framecnt_t) const;
604 framecnt_t convert_to_frames (AnyTime const & position);
605 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
607 static PBD::Signal1<void, framepos_t> StartTimeChanged;
608 static PBD::Signal1<void, framepos_t> EndTimeChanged;
610 void request_sync_source (Slave*);
611 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
612 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
614 double transport_speed() const { return _transport_speed; }
615 bool transport_stopped() const { return _transport_speed == 0.0f; }
616 bool transport_rolling() const { return _transport_speed != 0.0f; }
618 bool silent () { return _silent; }
620 TempoMap& tempo_map() { return *_tempo_map; }
621 const TempoMap& tempo_map() const { return *_tempo_map; }
623 unsigned int get_xrun_count () const {return _xrun_count; }
624 void reset_xrun_count () {_xrun_count = 0; }
628 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
630 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
631 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
632 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
634 /* source management */
636 void import_files (ImportStatus&);
637 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
638 std::string build_tmp_convert_name (std::string file);
640 boost::shared_ptr<ExportHandler> get_export_handler ();
641 boost::shared_ptr<ExportStatus> get_export_status ();
643 int start_audio_export (framepos_t position);
645 PBD::Signal1<int, framecnt_t> ProcessExport;
646 static PBD::Signal2<void,std::string, std::string> Exported;
648 void add_source (boost::shared_ptr<Source>);
649 void remove_source (boost::weak_ptr<Source>);
651 void cleanup_regions();
652 int cleanup_sources (CleanupReport&);
653 int cleanup_trash_sources (CleanupReport&);
655 int destroy_sources (std::list<boost::shared_ptr<Source> >);
657 int remove_last_capture ();
659 /** handlers should return 0 for "everything OK", and any other value for
660 * "cannot setup audioengine".
662 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
664 /** handlers should return -1 for "stop cleanup",
665 0 for "yes, delete this playlist",
666 1 for "no, don't delete this playlist".
668 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
670 /** handlers should return 0 for "ignore the rate mismatch",
671 !0 for "do not use this session"
673 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
675 /** handlers should return !0 for use pending state, 0 for ignore it.
677 static PBD::Signal0<int> AskAboutPendingState;
679 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
680 size_t, std::string const &, uint32_t, bool destructive);
682 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
683 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
685 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
686 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
687 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
688 uint32_t count_sources_by_origin (const std::string&);
690 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
692 /* Curves and AutomationLists (TODO when they go away) */
693 void add_automation_list(AutomationList*);
697 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
698 void audition_playlist ();
699 void audition_region (boost::shared_ptr<Region>);
700 void cancel_audition ();
701 bool is_auditioning () const;
703 PBD::Signal1<void,bool> AuditionActive;
705 /* flattening stuff */
707 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
708 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
709 boost::shared_ptr<Processor> endpoint,
710 bool include_endpoint, bool for_export, bool for_freeze);
711 int freeze_all (InterThreadInfo&);
713 /* session-wide solo/mute/rec-enable */
715 bool soloing() const { return _non_soloed_outs_muted; }
716 bool listening() const { return _listen_cnt > 0; }
717 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
719 static const SessionEvent::RTeventCallback rt_cleanup;
721 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
722 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
723 void cancel_solo_after_disconnect (boost::shared_ptr<Route>, bool upstream, SessionEvent::RTeventCallback after = rt_cleanup);
724 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
725 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
726 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
727 void set_record_safe (boost::shared_ptr<RouteList>, bool yn, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
728 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
729 void set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
730 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others=false);
732 PBD::Signal1<void,bool> SoloActive;
733 PBD::Signal0<void> SoloChanged;
734 PBD::Signal0<void> IsolatedChanged;
736 PBD::Signal0<void> session_routes_reconnected;
738 /* monitor/master out */
740 void add_monitor_section ();
741 void reset_monitor_section ();
742 void remove_monitor_section ();
744 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
745 boost::shared_ptr<Route> master_out() const { return _master_out; }
747 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
748 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
749 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
750 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
751 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
752 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
753 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
755 static void set_disable_all_loaded_plugins (bool yn) {
756 _disable_all_loaded_plugins = yn;
758 static bool get_disable_all_loaded_plugins() {
759 return _disable_all_loaded_plugins;
762 uint32_t next_send_id();
763 uint32_t next_aux_send_id();
764 uint32_t next_return_id();
765 uint32_t next_insert_id();
766 void mark_send_id (uint32_t);
767 void mark_aux_send_id (uint32_t);
768 void mark_return_id (uint32_t);
769 void mark_insert_id (uint32_t);
770 void unmark_send_id (uint32_t);
771 void unmark_aux_send_id (uint32_t);
772 void unmark_return_id (uint32_t);
773 void unmark_insert_id (uint32_t);
775 /* s/w "RAID" management */
777 boost::optional<framecnt_t> available_capture_duration();
781 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
782 void remove_bundle (boost::shared_ptr<Bundle>);
783 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
785 PBD::Signal0<void> BundleAddedOrRemoved;
789 /* History (for editors, mixers, UIs etc.) */
791 /** Undo some transactions.
792 * @param n Number of transactions to undo.
794 void undo (uint32_t n) {
798 void redo (uint32_t n) {
802 UndoHistory& history() { return _history; }
804 uint32_t undo_depth() const { return _history.undo_depth(); }
805 uint32_t redo_depth() const { return _history.redo_depth(); }
806 std::string next_undo() const { return _history.next_undo(); }
807 std::string next_redo() const { return _history.next_redo(); }
809 void begin_reversible_command (const std::string& cmd_name);
810 void begin_reversible_command (GQuark);
811 void abort_reversible_command ();
812 void commit_reversible_command (Command* cmd = 0);
814 void add_command (Command *const cmd) {
815 assert (_current_trans);
816 _current_trans->add_command (cmd);
819 /** @return The list of operations that are currently in progress */
820 std::list<GQuark> const & current_operations () {
821 return _current_trans_quarks;
824 bool operation_in_progress (GQuark) const;
826 void add_commands (std::vector<Command*> const & cmds);
828 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
830 // these commands are implemented in libs/ardour/session_command.cc
831 Command* memento_command_factory(XMLNode* n);
832 Command* stateful_diff_command_factory (XMLNode *);
833 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
837 boost::shared_ptr<IO> click_io() { return _click_io; }
838 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
840 /* disk, buffer loads */
842 uint32_t playback_load ();
843 uint32_t capture_load ();
847 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
848 void request_cancel_play_range ();
849 bool get_play_range () const { return _play_range; }
851 void maybe_update_session_range (framepos_t, framepos_t);
853 /* temporary hacks to allow selection to be pushed from GUI into backend.
854 Whenever we move the selection object into libardour, these will go away.
856 void set_range_selection (framepos_t start, framepos_t end);
857 void set_object_selection (framepos_t start, framepos_t end);
858 void clear_range_selection ();
859 void clear_object_selection ();
861 /* buffers for gain and pan */
863 gain_t* gain_automation_buffer () const;
864 gain_t* trim_automation_buffer () const;
865 gain_t* send_gain_automation_buffer () const;
866 pan_t** pan_automation_buffer () const;
868 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
872 static int vst_current_loading_id;
873 static const char* vst_can_do_strings[];
874 static const int vst_can_do_string_count;
876 static intptr_t vst_callback (
885 static PBD::Signal0<void> SendFeedback;
889 boost::shared_ptr<Speakers> get_speakers ();
893 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
894 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
896 void add_controllable (boost::shared_ptr<PBD::Controllable>);
897 void remove_controllable (PBD::Controllable*);
899 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
901 SessionConfiguration config;
903 bool exporting () const {
907 bool bounce_processing() const {
908 return _bounce_processing_active;
911 /* this is a private enum, but setup_enum_writer() needs it,
912 and i can't find a way to give that function
916 enum PostTransportWork {
917 PostTransportStop = 0x1,
918 PostTransportDuration = 0x2,
919 PostTransportLocate = 0x4,
920 PostTransportRoll = 0x8,
921 PostTransportAbort = 0x10,
922 PostTransportOverWrite = 0x20,
923 PostTransportSpeed = 0x40,
924 PostTransportAudition = 0x80,
925 PostTransportReverse = 0x100,
926 PostTransportInputChange = 0x200,
927 PostTransportCurveRealloc = 0x400,
928 PostTransportClearSubstate = 0x800,
929 PostTransportAdjustPlaybackBuffering = 0x1000,
930 PostTransportAdjustCaptureBuffering = 0x2000
939 SlaveState slave_state() const { return _slave_state; }
940 Slave* slave() const { return _slave; }
942 boost::shared_ptr<SessionPlaylists> playlists;
944 void send_mmc_locate (framepos_t);
945 void queue_full_time_code () { _send_timecode_update = true; }
946 void queue_song_position_pointer () { /* currently does nothing */ }
948 bool step_editing() const { return (_step_editors > 0); }
950 void request_suspend_timecode_transmission ();
951 void request_resume_timecode_transmission ();
952 bool timecode_transmission_suspended () const;
954 std::vector<std::string> source_search_path(DataType) const;
955 void ensure_search_path_includes (const std::string& path, DataType type);
956 void remove_dir_from_search_path (const std::string& path, DataType type);
958 std::list<std::string> unknown_processors () const;
960 /** Emitted when a feedback cycle has been detected within Ardour's signal
961 processing path. Until it is fixed (by the user) some (unspecified)
962 routes will not be run.
964 static PBD::Signal0<void> FeedbackDetected;
966 /** Emitted when a graph sort has successfully completed, which means
967 that it has no feedback cycles.
969 static PBD::Signal0<void> SuccessfulGraphSort;
971 /* handlers can return an integer value:
972 0: config.set_audio_search_path() or config.set_midi_search_path() was used
973 to modify the search path and we should try to find it again.
974 1: quit entire session load
975 2: as 0, but don't ask about other missing files
976 3: don't ask about other missing files, and just mark this one missing
977 -1: just mark this one missing
978 any other value: as -1
980 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
982 /** Emitted when the session wants Ardour to quit */
983 static PBD::Signal0<void> Quit;
985 /** Emitted when Ardour is asked to load a session in an older session
986 * format, and makes a backup copy.
988 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
990 SceneChanger* scene_changer() const { return _scene_changer; }
992 boost::shared_ptr<Port> ltc_input_port() const;
993 boost::shared_ptr<Port> ltc_output_port() const;
995 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
996 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
998 MIDI::Port* midi_input_port () const;
999 MIDI::Port* midi_output_port () const;
1000 MIDI::Port* mmc_output_port () const;
1001 MIDI::Port* mmc_input_port () const;
1003 MIDI::Port* scene_input_port () const;
1004 MIDI::Port* scene_output_port () const;
1006 boost::shared_ptr<MidiPort> scene_in () const;
1007 boost::shared_ptr<MidiPort> scene_out () const;
1009 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1010 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1011 boost::shared_ptr<MidiPort> mtc_output_port () const;
1012 boost::shared_ptr<MidiPort> mtc_input_port () const;
1014 MIDI::MachineControl& mmc() { return *_mmc; }
1016 void reconnect_midi_scene_ports (bool);
1017 void reconnect_mtc_ports ();
1018 void reconnect_mmc_ports (bool);
1021 friend class AudioEngine;
1022 void set_block_size (pframes_t nframes);
1023 void set_frame_rate (framecnt_t nframes);
1024 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1028 void schedule_curve_reallocation ();
1029 void update_latency_compensation (bool force = false);
1032 int create (const std::string& mix_template, BusProfile*);
1036 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
1037 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
1038 StopPendingCapture = 0x4,
1039 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
1040 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
1041 PendingLocate = 0x20,
1044 /* stuff used in process() should be close together to
1048 typedef void (Session::*process_function_type)(pframes_t);
1050 AudioEngine& _engine;
1051 mutable gint processing_prohibited;
1052 process_function_type process_function;
1053 process_function_type last_process_function;
1054 bool _bounce_processing_active;
1055 bool waiting_for_sync_offset;
1056 framecnt_t _base_frame_rate;
1057 framecnt_t _current_frame_rate; //this includes video pullup offset
1058 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1059 int transport_sub_state;
1060 mutable gint _record_status;
1061 framepos_t _transport_frame;
1062 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1066 // varispeed playback
1067 double _transport_speed;
1068 double _default_transport_speed;
1069 double _last_transport_speed;
1070 double _signalled_varispeed;
1071 double _target_transport_speed;
1072 CubicInterpolation interpolation;
1074 bool auto_play_legal;
1075 framepos_t _last_slave_transport_frame;
1076 framecnt_t maximum_output_latency;
1077 framepos_t _requested_return_frame;
1078 pframes_t current_block_size;
1079 framecnt_t _worst_output_latency;
1080 framecnt_t _worst_input_latency;
1081 framecnt_t _worst_track_latency;
1082 bool _have_captured;
1083 bool _non_soloed_outs_muted;
1084 uint32_t _listen_cnt;
1085 uint32_t _solo_isolated_cnt;
1088 bool _under_nsm_control;
1089 unsigned int _xrun_count;
1091 void mtc_status_changed (bool);
1092 PBD::ScopedConnection mtc_status_connection;
1094 void initialize_latencies ();
1095 void set_worst_io_latencies ();
1096 void set_worst_playback_latency ();
1097 void set_worst_capture_latency ();
1098 void set_worst_io_latencies_x (IOChange, void *) {
1099 set_worst_io_latencies ();
1101 void post_capture_latency ();
1102 void post_playback_latency ();
1104 void update_latency_compensation_proxy (void* ignored);
1106 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1108 void process_scrub (pframes_t);
1109 void process_without_events (pframes_t);
1110 void process_with_events (pframes_t);
1111 void process_audition (pframes_t);
1112 int process_export (pframes_t);
1113 int process_export_fw (pframes_t);
1115 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1116 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1117 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1119 static const framecnt_t bounce_chunk_size;
1121 /* slave tracking */
1123 static const int delta_accumulator_size = 25;
1124 int delta_accumulator_cnt;
1125 int32_t delta_accumulator[delta_accumulator_size];
1126 int32_t average_slave_delta;
1128 bool have_first_delta_accumulator;
1130 SlaveState _slave_state;
1132 framepos_t slave_wait_end;
1134 void reset_slave_state ();
1135 bool follow_slave (pframes_t);
1136 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1137 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1138 void follow_slave_silently (pframes_t nframes, float slave_speed);
1140 void switch_to_sync_source (SyncSource); /* !RT context */
1141 void drop_sync_source (); /* !RT context */
1142 void use_sync_source (Slave*); /* RT context */
1144 bool post_export_sync;
1145 framepos_t post_export_position;
1148 bool _export_started;
1149 bool _export_rolling;
1151 boost::shared_ptr<ExportHandler> export_handler;
1152 boost::shared_ptr<ExportStatus> export_status;
1155 int stop_audio_export ();
1156 void finalize_audio_export ();
1157 void finalize_export_internal (bool stop_freewheel);
1158 bool _pre_export_mmc_enabled;
1160 PBD::ScopedConnection export_freewheel_connection;
1162 void get_track_statistics ();
1163 int process_routes (pframes_t, bool& need_butler);
1164 int silent_process_routes (pframes_t, bool& need_butler);
1166 /** @return 1 if there is a pending declick fade-in,
1167 -1 if there is a pending declick fade-out,
1168 0 if there is no pending declick.
1170 int get_transport_declick_required () {
1171 if (transport_sub_state & PendingDeclickIn) {
1172 transport_sub_state &= ~PendingDeclickIn;
1174 } else if (transport_sub_state & PendingDeclickOut) {
1175 /* XXX: not entirely sure why we don't clear this */
1177 } else if (transport_sub_state & PendingLoopDeclickOut) {
1178 /* Return the declick out first ... */
1179 transport_sub_state &= ~PendingLoopDeclickOut;
1181 } else if (transport_sub_state & PendingLoopDeclickIn) {
1182 /* ... then the declick in on the next call */
1183 transport_sub_state &= ~PendingLoopDeclickIn;
1190 bool maybe_stop (framepos_t limit);
1191 bool maybe_sync_start (pframes_t &);
1193 void check_declick_out ();
1199 /** Number of process frames since the last MTC output (when sending MTC); used to
1200 * know when to send full MTC messages every so often.
1202 pframes_t _pframes_since_last_mtc;
1203 bool session_midi_feedback;
1206 framepos_t last_loopend;
1208 boost::scoped_ptr<SessionDirectory> _session_dir;
1211 void graph_reordered ();
1213 /** current snapshot name, without the .ardour suffix */
1214 std::string _current_snapshot_name;
1216 XMLTree* state_tree;
1217 bool state_was_pending;
1218 StateOfTheState _state_of_the_state;
1220 friend class StateProtector;
1221 gint _suspend_save; /* atomic */
1222 volatile bool _save_queued;
1223 Glib::Threads::Mutex save_state_lock;
1225 int load_options (const XMLNode&);
1226 int load_state (std::string snapshot_name);
1228 framepos_t _last_roll_location;
1229 /** the session frame time at which we last rolled, located, or changed transport direction */
1230 framepos_t _last_roll_or_reversal_location;
1231 framepos_t _last_record_location;
1233 bool pending_locate_roll;
1234 framepos_t pending_locate_frame;
1235 bool pending_locate_flush;
1237 bool pending_auto_loop;
1241 static const PostTransportWork ProcessCannotProceedMask =
1243 PostTransportInputChange|
1245 PostTransportReverse|
1246 PostTransportCurveRealloc|
1247 PostTransportAudition|
1248 PostTransportLocate|
1250 PostTransportClearSubstate);
1252 gint _post_transport_work; /* accessed only atomic ops */
1253 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1254 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1255 void add_post_transport_work (PostTransportWork ptw);
1257 void schedule_playback_buffering_adjustment ();
1258 void schedule_capture_buffering_adjustment ();
1260 uint32_t cumulative_rf_motion;
1263 void set_rf_speed (float speed);
1264 void reset_rf_scale (framecnt_t frames_moved);
1266 Locations* _locations;
1267 void location_added (Location*);
1268 void location_removed (Location*);
1269 void locations_changed ();
1270 void _locations_changed (const Locations::LocationList&);
1272 void update_skips (Location*, bool consolidate);
1273 void update_marks (Location* loc);
1274 void consolidate_skips (Location*);
1275 void sync_locations_to_skips ();
1276 void _sync_locations_to_skips ();
1278 PBD::ScopedConnectionList skip_update_connections;
1279 bool _ignore_skips_updates;
1281 PBD::ScopedConnectionList punch_connections;
1282 void auto_punch_start_changed (Location *);
1283 void auto_punch_end_changed (Location *);
1284 void auto_punch_changed (Location *);
1286 PBD::ScopedConnectionList loop_connections;
1287 void auto_loop_changed (Location *);
1288 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1290 int ensure_engine (uint32_t desired_sample_rate);
1291 void pre_engine_init (std::string path);
1292 int post_engine_init ();
1293 int immediately_post_engine ();
1294 void remove_empty_sounds ();
1296 void session_loaded ();
1298 void setup_midi_control ();
1299 int midi_read (MIDI::Port *);
1301 void enable_record ();
1303 void increment_transport_position (framecnt_t val) {
1304 if (max_framepos - val < _transport_frame) {
1305 _transport_frame = max_framepos;
1307 _transport_frame += val;
1311 void decrement_transport_position (framecnt_t val) {
1312 if (val < _transport_frame) {
1313 _transport_frame -= val;
1315 _transport_frame = 0;
1319 void post_transport_motion ();
1320 static void *session_loader_thread (void *arg);
1324 /* Signal Forwarding */
1325 void emit_route_signals ();
1326 void emit_thread_run ();
1327 static void *emit_thread (void *);
1328 void emit_thread_start ();
1329 void emit_thread_terminate ();
1331 pthread_t _rt_emit_thread;
1332 bool _rt_thread_active;
1334 pthread_mutex_t _rt_emit_mutex;
1335 pthread_cond_t _rt_emit_cond;
1336 bool _rt_emit_pending;
1339 /* SessionEventManager interface */
1341 void process_event (SessionEvent*);
1342 void set_next_event ();
1343 void cleanup_event (SessionEvent*,int);
1345 /* MIDI Machine Control */
1348 void spp_continue ();
1351 void mmc_deferred_play (MIDI::MachineControl &);
1352 void mmc_stop (MIDI::MachineControl &);
1353 void mmc_step (MIDI::MachineControl &, int);
1354 void mmc_pause (MIDI::MachineControl &);
1355 void mmc_record_pause (MIDI::MachineControl &);
1356 void mmc_record_strobe (MIDI::MachineControl &);
1357 void mmc_record_exit (MIDI::MachineControl &);
1358 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1359 void mmc_fast_forward (MIDI::MachineControl &);
1360 void mmc_rewind (MIDI::MachineControl &);
1361 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1362 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1363 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1365 struct timeval last_mmc_step;
1368 typedef boost::function<bool()> MidiTimeoutCallback;
1369 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1371 MidiTimeoutList midi_timeouts;
1372 bool mmc_step_timeout ();
1373 void send_immediate_mmc (MIDI::MachineControlCommand);
1375 MIDI::byte mtc_msg[16];
1376 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1377 MIDI::byte midi_msg[16];
1378 double outbound_mtc_timecode_frame;
1379 Timecode::Time transmitting_timecode_time;
1380 int next_quarter_frame_to_send;
1382 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1383 framecnt_t _frames_per_hour;
1384 framecnt_t _timecode_frames_per_hour;
1386 /* cache the most-recently requested time conversions. This helps when we
1387 * have multiple clocks showing the same time (e.g. the transport frame) */
1388 bool last_timecode_valid;
1389 framepos_t last_timecode_when;
1390 Timecode::Time last_timecode;
1392 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1394 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1396 LTCEncoder* ltc_encoder;
1397 ltcsnd_sample_t* ltc_enc_buf;
1399 Timecode::TimecodeFormat ltc_enc_tcformat;
1400 int32_t ltc_buf_off;
1401 int32_t ltc_buf_len;
1404 int32_t ltc_enc_byte;
1405 framepos_t ltc_enc_pos;
1407 framepos_t ltc_enc_off;
1409 framepos_t ltc_prev_cycle;
1411 framepos_t ltc_timecode_offset;
1412 bool ltc_timecode_negative_offset;
1414 LatencyRange ltc_out_latency;
1416 void ltc_tx_initialize();
1417 void ltc_tx_cleanup();
1418 void ltc_tx_reset();
1419 void ltc_tx_resync_latency();
1420 void ltc_tx_recalculate_position();
1421 void ltc_tx_parse_offset();
1422 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1424 void reset_record_status ();
1426 int no_roll (pframes_t nframes);
1427 int fail_roll (pframes_t nframes);
1429 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1430 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1432 MidiControlUI* midi_control_ui;
1434 int start_midi_thread ();
1436 void set_play_loop (bool yn, double speed);
1437 void unset_play_loop ();
1438 void overwrite_some_buffers (Track *);
1439 void flush_all_inserts ();
1440 int micro_locate (framecnt_t distance);
1441 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1442 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1443 void force_locate (framepos_t frame, bool with_roll = false);
1444 void set_track_speed (Track *, double speed);
1445 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1446 void stop_transport (bool abort = false, bool clear_state = false);
1447 void start_transport ();
1448 void realtime_stop (bool abort, bool clear_state);
1449 void realtime_locate ();
1450 void non_realtime_start_scrub ();
1451 void non_realtime_set_speed ();
1452 void non_realtime_locate ();
1453 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1454 void non_realtime_overwrite (int entry_request_count, bool& finished);
1455 void post_transport ();
1456 void engine_halted ();
1457 void xrun_recovery ();
1458 void set_track_loop (bool);
1459 bool select_playhead_priority_target (framepos_t&);
1460 void follow_playhead_priority ();
1462 /* These are synchronous and so can only be called from within the process
1466 int send_full_time_code (framepos_t, pframes_t nframes);
1467 void send_song_position_pointer (framepos_t);
1469 TempoMap *_tempo_map;
1470 void tempo_map_changed (const PBD::PropertyChange&);
1472 /* edit/mix groups */
1474 int load_route_groups (const XMLNode&, int);
1476 std::list<RouteGroup *> _route_groups;
1477 RouteGroup* _all_route_group;
1481 boost::shared_ptr<Graph> _process_graph;
1483 SerializedRCUManager<RouteList> routes;
1485 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save);
1486 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect);
1487 bool _adding_routes_in_progress;
1488 bool _reconnecting_routes_in_progress;
1489 bool _route_deletion_in_progress;
1491 uint32_t destructive_index;
1493 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1494 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1496 void route_processors_changed (RouteProcessorChange);
1498 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1499 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1500 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1501 bool with_lock, bool connect_inputs = true,
1502 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1503 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1505 /* track numbering */
1507 void reassign_track_numbers ();
1508 uint32_t _track_number_decimals;
1512 bool solo_update_disabled;
1514 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1515 void route_mute_changed (void *src);
1516 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1517 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1518 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1520 void listen_position_changed ();
1521 void solo_control_mode_changed ();
1523 /* REGION MANAGEMENT */
1525 mutable Glib::Threads::Mutex region_lock;
1527 int load_regions (const XMLNode& node);
1528 int load_compounds (const XMLNode& node);
1530 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1531 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1532 void route_group_property_changed (RouteGroup *);
1536 mutable Glib::Threads::Mutex source_lock;
1539 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1542 void reset_write_sources (bool mark_write_complete, bool force = false);
1547 int load_sources (const XMLNode& node);
1548 XMLNode& get_sources_as_xml ();
1550 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1554 void remove_playlist (boost::weak_ptr<Playlist>);
1555 void track_playlist_changed (boost::weak_ptr<Track>);
1556 void playlist_region_added (boost::weak_ptr<Region>);
1557 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1558 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1560 /* CURVES and AUTOMATION LISTS */
1561 std::map<PBD::ID, AutomationList*> automation_lists;
1563 /* DEFAULT FADE CURVES */
1565 float default_fade_steepness;
1566 float default_fade_msecs;
1570 boost::shared_ptr<Auditioner> auditioner;
1571 void set_audition (boost::shared_ptr<Region>);
1572 void non_realtime_set_audition ();
1573 boost::shared_ptr<Region> pending_audition_region;
1579 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1581 /* INSERT AND SEND MANAGEMENT */
1583 boost::dynamic_bitset<uint32_t> send_bitset;
1584 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1585 boost::dynamic_bitset<uint32_t> return_bitset;
1586 boost::dynamic_bitset<uint32_t> insert_bitset;
1590 struct space_and_path {
1591 uint32_t blocks; ///< 4kB blocks
1592 bool blocks_unknown; ///< true if blocks is unknown
1597 , blocks_unknown (true)
1601 struct space_and_path_ascending_cmp {
1602 bool operator() (space_and_path a, space_and_path b) {
1603 if (a.blocks_unknown != b.blocks_unknown) {
1604 return !a.blocks_unknown;
1606 return a.blocks > b.blocks;
1610 void setup_raid_path (std::string path);
1612 std::vector<space_and_path> session_dirs;
1613 std::vector<space_and_path>::iterator last_rr_session_dir;
1614 uint32_t _total_free_4k_blocks;
1615 /** If this is true, _total_free_4k_blocks is not definite,
1616 as one or more of the session directories' filesystems
1617 could not report free space.
1619 bool _total_free_4k_blocks_uncertain;
1620 Glib::Threads::Mutex space_lock;
1622 bool no_questions_about_missing_files;
1624 std::string get_best_session_directory_for_new_audio ();
1626 mutable gint _playback_load;
1627 mutable gint _capture_load;
1631 SerializedRCUManager<BundleList> _bundles;
1632 XMLNode* _bundle_xml_node;
1633 int load_bundles (XMLNode const &);
1635 UndoHistory _history;
1636 /** current undo transaction, or 0 */
1637 UndoTransaction* _current_trans;
1638 /** GQuarks to describe the reversible commands that are currently in progress.
1639 * These may be nested, in which case more recently-started commands are toward
1640 * the front of the list.
1642 std::list<GQuark> _current_trans_quarks;
1644 int backend_sync_callback (TransportState, framepos_t);
1646 void process_rtop (SessionEvent*);
1648 void update_latency (bool playback);
1650 XMLNode& state(bool);
1653 typedef std::list<Click*> Clicks;
1656 boost::shared_ptr<IO> _click_io;
1657 boost::shared_ptr<Amp> _click_gain;
1659 Sample* click_emphasis_data;
1660 framecnt_t click_length;
1661 framecnt_t click_emphasis_length;
1662 mutable Glib::Threads::RWLock click_lock;
1664 static const Sample default_click[];
1665 static const framecnt_t default_click_length;
1666 static const Sample default_click_emphasis[];
1667 static const framecnt_t default_click_emphasis_length;
1670 framepos_t _clicks_cleared;
1671 void setup_click_sounds (int which);
1672 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1673 void clear_clicks ();
1674 void click (framepos_t start, framecnt_t nframes);
1676 std::vector<Route*> master_outs;
1678 /* range playback */
1680 std::list<AudioRange> current_audio_range;
1682 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1683 void unset_play_range ();
1685 /* temporary hacks to allow selection to be pushed from GUI into backend
1686 Whenever we move the selection object into libardour, these will go away.
1688 Evoral::Range<framepos_t> _range_selection;
1689 Evoral::Range<framepos_t> _object_selection;
1694 boost::shared_ptr<Route> _master_out;
1695 boost::shared_ptr<Route> _monitor_out;
1697 void auto_connect_master_bus ();
1699 /* Windows VST support */
1701 long _windows_vst_callback (
1710 int find_all_sources (std::string path, std::set<std::string>& result);
1711 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1713 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1714 Glib::Threads::Mutex controllables_lock;
1715 Controllables controllables;
1717 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1719 void reset_native_file_format();
1720 bool first_file_data_format_reset;
1721 bool first_file_header_format_reset;
1723 void config_changed (std::string, bool);
1725 XMLNode& get_control_protocol_state ();
1727 void set_history_depth (uint32_t depth);
1729 static bool _disable_all_loaded_plugins;
1731 mutable bool have_looped; ///< Used in ::audible_frame(*)
1733 void update_route_record_state ();
1734 gint _have_rec_enabled_track;
1735 gint _have_rec_disabled_track;
1737 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1739 /* realtime "apply to set of routes" operations */
1740 template<typename T> SessionEvent*
1741 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, bool group_override,
1742 void (Session::*method) (boost::shared_ptr<RouteList>, T, bool)) {
1743 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1744 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1745 ev->rt_return = after;
1746 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1751 void rt_cancel_solo_after_disconnect (boost::shared_ptr<RouteList>, bool upstream, bool /* ignored*/ );
1752 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1753 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1754 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1755 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1756 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1757 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1758 void rt_set_record_safe (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1759 void rt_set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, bool group_override);
1761 /** temporary list of Diskstreams used only during load of 2.X sessions */
1762 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1764 void set_session_range_location (framepos_t, framepos_t);
1766 void setup_midi_machine_control ();
1768 void step_edit_status_change (bool);
1769 uint32_t _step_editors;
1771 /** true if timecode transmission by the transport is suspended, otherwise false */
1772 mutable gint _suspend_timecode_transmission;
1774 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1776 void start_time_changed (framepos_t);
1777 void end_time_changed (framepos_t);
1779 void set_track_monitor_input_status (bool);
1780 framepos_t compute_stop_limit () const;
1782 boost::shared_ptr<Speakers> _speakers;
1783 void load_nested_sources (const XMLNode& node);
1785 /** The directed graph of routes that is currently being used for audio processing
1786 and solo/mute computations.
1788 GraphEdges _current_route_graph;
1790 uint32_t next_control_id () const;
1791 int32_t _order_hint;
1792 bool ignore_route_processor_changes;
1794 MidiClockTicker* midi_clock;
1796 boost::shared_ptr<IO> _ltc_input;
1797 boost::shared_ptr<IO> _ltc_output;
1799 void reconnect_ltc_input ();
1800 void reconnect_ltc_output ();
1802 /* Scene Changing */
1803 SceneChanger* _scene_changer;
1805 /* persistent, non-track related MIDI ports */
1806 MidiPortManager* _midi_ports;
1807 MIDI::MachineControl* _mmc;
1810 void setup_click ();
1811 void setup_click_state (const XMLNode*);
1812 void setup_bundles ();
1814 void save_as_bring_callback (uint32_t, uint32_t, std::string);
1816 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
1817 static const uint32_t session_end_shift;
1821 } // namespace ARDOUR
1823 #endif /* __ardour_session_h__ */