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 deletion_in_progress() const { return _state_of_the_state & Deletion; }
180 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
182 PBD::Signal0<void> DirtyChanged;
184 PBD::Signal1<void, bool> RouteAddedOrRemoved;
186 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
188 static PBD::Signal1<void,std::string> Dialog;
190 PBD::Signal0<void> BatchUpdateStart;
191 PBD::Signal0<void> BatchUpdateEnd;
193 int ensure_subdirs ();
195 std::string automation_dir () const; ///< Automation data
196 std::string analysis_dir () const; ///< Analysis data
197 std::string plugins_dir () const; ///< Plugin state
198 std::string externals_dir () const; ///< Links to external files
200 std::string peak_path (std::string) const;
202 std::string peak_path_from_audio_path (std::string) const;
203 bool audio_source_name_is_unique (const std::string& name);
204 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);
205 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
206 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
207 std::string new_midi_source_path (const std::string&);
208 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path, const std::string& name);
209 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path, uint32_t channels);
211 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
213 void process (pframes_t nframes);
215 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
216 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true );
217 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
218 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
220 bool have_rec_enabled_track () const;
221 bool have_rec_disabled_track () const;
223 bool have_captured() const { return _have_captured; }
225 void refill_all_track_buffers ();
226 Butler* butler() { return _butler; }
227 void butler_transport_work ();
229 void refresh_disk_space ();
231 int load_diskstreams_2X (XMLNode const &, int);
233 int load_routes (const XMLNode&, int);
234 boost::shared_ptr<RouteList> get_routes() const {
235 return routes.reader ();
238 boost::shared_ptr<RouteList> get_tracks() const;
239 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
240 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
242 uint32_t nroutes() const { return routes.reader()->size(); }
243 uint32_t ntracks () const;
244 uint32_t nbusses () const;
246 boost::shared_ptr<BundleList> bundles () {
247 return _bundles.reader ();
250 struct LIBARDOUR_API RoutePublicOrderSorter {
251 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
254 void set_order_hint (int32_t order_hint) {_order_hint = order_hint;};
255 void notify_remote_id_change ();
256 void sync_order_keys ();
258 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
259 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
260 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
262 static char session_name_is_legal (const std::string&);
263 bool io_name_is_legal (const std::string&);
264 boost::shared_ptr<Route> route_by_name (std::string);
265 boost::shared_ptr<Route> route_by_id (PBD::ID);
266 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
267 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID);
268 void routes_using_input_from (const std::string& str, RouteList& rl);
270 bool route_name_unique (std::string) const;
271 bool route_name_internal (std::string) const;
273 uint32_t track_number_decimals () const {
274 return _track_number_decimals;
277 bool get_record_enabled() const {
278 return (record_status () >= Enabled);
281 RecordState record_status() const {
282 return (RecordState) g_atomic_int_get (&_record_status);
285 bool actively_recording () const {
286 return record_status() == Recording;
289 bool record_enabling_legal () const;
290 void maybe_enable_record ();
291 void disable_record (bool rt_context, bool force = false);
292 void step_back_from_record ();
294 void maybe_write_autosave ();
296 /* Emitted when all i/o connections are complete */
298 PBD::Signal0<void> IOConnectionsComplete;
300 /* Timecode status signals */
301 PBD::Signal1<void, bool> MTCSyncStateChanged;
303 /* Record status signals */
305 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
306 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
307 from the previous signal and session state.
309 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
311 /* Emited when session is loaded */
312 PBD::Signal0<void> SessionLoaded;
314 /* Transport mechanism signals */
316 /** Emitted on the following changes in transport state:
317 * - stop (from the butler thread)
318 * - change in whether or not we are looping (from the process thread)
319 * - change in the play range (from the process thread)
320 * - start (from the process thread)
323 PBD::Signal0<void> TransportStateChange;
325 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
326 PBD::Signal1<void,framepos_t> Xrun;
327 PBD::Signal0<void> TransportLooped;
329 /** emitted when a locate has occurred */
330 PBD::Signal0<void> Located;
332 PBD::Signal1<void,RouteList&> RouteAdded;
333 /** Emitted when a property of one of our route groups changes.
334 * The parameter is the RouteGroup that has changed.
336 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
337 /** Emitted when a route is added to one of our route groups.
338 * First parameter is the RouteGroup, second is the route.
340 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
341 /** Emitted when a route is removed from one of our route groups.
342 * First parameter is the RouteGroup, second is the route.
344 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
346 /* Step Editing status changed */
347 PBD::Signal1<void,bool> StepEditStatusChange;
349 /* Timecode state signals */
350 PBD::Signal0<void> MtcOrLtcInputPortChanged;
352 void queue_event (SessionEvent*);
354 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
355 void request_bounded_roll (framepos_t start, framepos_t end);
356 void request_stop (bool abort = false, bool clear_state = false);
357 void request_locate (framepos_t frame, bool with_roll = false);
359 void request_play_loop (bool yn, bool leave_rolling = false);
360 bool get_play_loop () const { return play_loop; }
362 framepos_t last_transport_start () const { return _last_roll_location; }
365 void use_rf_shuttle_speed ();
366 void allow_auto_play (bool yn);
367 void request_transport_speed (double speed, bool as_default = false);
368 void request_transport_speed_nonzero (double, bool as_default = false);
369 void request_overwrite_buffer (Track *);
370 void adjust_playback_buffering();
371 void adjust_capture_buffering();
372 void request_track_speed (Track *, double speed);
373 void request_input_change_handling ();
375 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
376 bool transport_locked () const;
380 framepos_t current_end_frame () const;
381 framepos_t current_start_frame () const;
382 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
383 framecnt_t frame_rate () const { return _current_frame_rate; }
384 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
385 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
386 framecnt_t frames_per_hour () const { return _frames_per_hour; }
388 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
389 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
391 MIDI::byte get_mtc_timecode_bits() const {
392 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
395 double timecode_frames_per_second() const;
396 bool timecode_drop_frames() const;
400 Locations *locations() { return _locations; }
402 PBD::Signal1<void,Location*> auto_loop_location_changed;
403 PBD::Signal1<void,Location*> auto_punch_location_changed;
404 PBD::Signal0<void> locations_modified;
406 void set_auto_punch_location (Location *);
407 void set_auto_loop_location (Location *);
408 void set_session_extents (framepos_t start, framepos_t end);
409 int location_name(std::string& result, std::string base = std::string(""));
411 pframes_t get_block_size() const { return current_block_size; }
412 framecnt_t worst_output_latency () const { return _worst_output_latency; }
413 framecnt_t worst_input_latency () const { return _worst_input_latency; }
414 framecnt_t worst_track_latency () const { return _worst_track_latency; }
415 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
418 std::string new_parent_folder; /* parent folder where new session folder will be created */
419 std::string new_name; /* name of newly saved session */
420 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
421 bool include_media; /* true if the newly saved session should contain references to media */
422 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
423 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
425 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
427 /* emitted as we make progress. 3 arguments passed to signal
430 * 1: percentage complete measured as a fraction (0-1.0) of
431 * total data copying done.
432 * 2: number of files copied so far
433 * 3: total number of files to copy
435 * Handler should return true for save-as to continue, or false
436 * to stop (and remove all evidence of partial save-as).
438 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
440 /* if save_as() returns non-zero, this string will indicate the reason why.
442 std::string failure_message;
445 int save_as (SaveAs&);
446 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
447 int restore_state (std::string snapshot_name);
448 int save_template (std::string template_name);
449 int save_history (std::string snapshot_name = "");
450 int restore_history (std::string snapshot_name);
451 void remove_state (std::string snapshot_name);
452 void rename_state (std::string old_name, std::string new_name);
453 void remove_pending_capture_state ();
454 int rename (const std::string&);
455 bool get_nsm_state () const { return _under_nsm_control; }
456 void set_nsm_state (bool state) { _under_nsm_control = state; }
457 bool save_default_options ();
459 PBD::Signal1<void,std::string> StateSaved;
460 PBD::Signal0<void> StateReady;
462 /* emitted when session needs to be saved due to some internal
463 * event or condition (i.e. not in response to a user request).
465 * Only one object should
466 * connect to this signal and take responsibility.
468 * Argument is the snapshot name to use when saving.
470 PBD::Signal1<void,std::string> SaveSessionRequested;
472 /* emitted during a session save to allow other entities to add state, via
473 * extra XML, to the session state
475 PBD::Signal0<void> SessionSaveUnderway;
477 std::vector<std::string> possible_states() const;
478 static std::vector<std::string> possible_states (std::string path);
480 XMLNode& get_state();
481 int set_state(const XMLNode& node, int version); // not idempotent
482 XMLNode& get_template();
484 /// The instant xml file is written to the session directory
485 void add_instant_xml (XMLNode&, bool write_to_config = true);
486 XMLNode* instant_xml (const std::string& str);
488 enum StateOfTheState {
493 InitialConnecting = 0x8,
498 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
500 class StateProtector {
502 StateProtector (Session* s) : _session (s) {
503 g_atomic_int_inc (&s->_suspend_save);
506 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
507 while (_session->_save_queued) {
508 _session->_save_queued = false;
509 _session->save_state ("");
517 void add_route_group (RouteGroup *);
518 void remove_route_group (RouteGroup&);
519 void reorder_route_groups (std::list<RouteGroup*>);
521 RouteGroup* route_group_by_name (std::string);
522 RouteGroup& all_route_group() const;
524 PBD::Signal1<void,RouteGroup*> route_group_added;
525 PBD::Signal0<void> route_group_removed;
526 PBD::Signal0<void> route_groups_reordered;
528 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
529 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
534 std::list<RouteGroup*> const & route_groups () const {
535 return _route_groups;
538 /* fundamental operations. duh. */
540 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
543 TrackMode mode = Normal,
544 RouteGroup* route_group = 0,
545 uint32_t how_many = 1,
546 std::string name_template = ""
549 RouteList new_audio_route (
550 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
553 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
554 const ChanCount& input, const ChanCount& output,
555 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
556 TrackMode mode = Normal,
557 RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
560 void remove_routes (boost::shared_ptr<RouteList>);
561 void remove_route (boost::shared_ptr<Route>);
563 void resort_routes ();
564 void resort_routes_using (boost::shared_ptr<RouteList>);
566 AudioEngine & engine() { return _engine; }
567 AudioEngine const & engine () const { return _engine; }
571 framepos_t transport_frame () const {return _transport_frame; }
572 framepos_t record_location () const {return _last_record_location; }
573 framepos_t audible_frame () const;
574 framepos_t requested_return_frame() const { return _requested_return_frame; }
575 void set_requested_return_frame(framepos_t return_to);
589 void sync_time_vars();
591 void bbt_time (framepos_t when, Timecode::BBT_Time&);
592 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
593 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
594 void timecode_time (Timecode::Time &);
595 void timecode_time (framepos_t when, Timecode::Time&);
596 void timecode_time_subframes (framepos_t when, Timecode::Time&);
598 void timecode_duration (framecnt_t, Timecode::Time&) const;
599 void timecode_duration_string (char *, size_t len, framecnt_t) const;
601 framecnt_t convert_to_frames (AnyTime const & position);
602 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
604 static PBD::Signal1<void, framepos_t> StartTimeChanged;
605 static PBD::Signal1<void, framepos_t> EndTimeChanged;
607 void request_sync_source (Slave*);
608 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
609 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
611 double transport_speed() const { return _transport_speed; }
612 bool transport_stopped() const { return _transport_speed == 0.0f; }
613 bool transport_rolling() const { return _transport_speed != 0.0f; }
615 bool silent () { return _silent; }
617 TempoMap& tempo_map() { return *_tempo_map; }
618 const TempoMap& tempo_map() const { return *_tempo_map; }
620 unsigned int get_xrun_count () const {return _xrun_count; }
621 void reset_xrun_count () {_xrun_count = 0; }
625 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
627 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
628 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
629 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
631 /* source management */
633 void import_files (ImportStatus&);
634 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
635 std::string build_tmp_convert_name (std::string file);
637 boost::shared_ptr<ExportHandler> get_export_handler ();
638 boost::shared_ptr<ExportStatus> get_export_status ();
640 int start_audio_export (framepos_t position);
642 PBD::Signal1<int, framecnt_t> ProcessExport;
643 static PBD::Signal2<void,std::string, std::string> Exported;
645 void add_source (boost::shared_ptr<Source>);
646 void remove_source (boost::weak_ptr<Source>);
648 void cleanup_regions();
649 int cleanup_sources (CleanupReport&);
650 int cleanup_trash_sources (CleanupReport&);
652 int destroy_sources (std::list<boost::shared_ptr<Source> >);
654 int remove_last_capture ();
656 /** handlers should return 0 for "everything OK", and any other value for
657 * "cannot setup audioengine".
659 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
661 /** handlers should return -1 for "stop cleanup",
662 0 for "yes, delete this playlist",
663 1 for "no, don't delete this playlist".
665 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
667 /** handlers should return 0 for "ignore the rate mismatch",
668 !0 for "do not use this session"
670 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
672 /** handlers should return !0 for use pending state, 0 for ignore it.
674 static PBD::Signal0<int> AskAboutPendingState;
676 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
677 size_t, std::string const &, uint32_t, bool destructive);
679 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
680 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
682 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
683 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
684 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
685 uint32_t count_sources_by_origin (const std::string&);
687 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
689 /* Curves and AutomationLists (TODO when they go away) */
690 void add_automation_list(AutomationList*);
694 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
695 void audition_playlist ();
696 void audition_region (boost::shared_ptr<Region>);
697 void cancel_audition ();
698 bool is_auditioning () const;
700 PBD::Signal1<void,bool> AuditionActive;
702 /* flattening stuff */
704 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
705 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
706 boost::shared_ptr<Processor> endpoint,
707 bool include_endpoint, bool for_export, bool for_freeze);
708 int freeze_all (InterThreadInfo&);
710 /* session-wide solo/mute/rec-enable */
712 bool soloing() const { return _non_soloed_outs_muted; }
713 bool listening() const { return _listen_cnt > 0; }
714 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
716 static const SessionEvent::RTeventCallback rt_cleanup;
718 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
719 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
720 void cancel_solo_after_disconnect (boost::shared_ptr<Route>, bool upstream, SessionEvent::RTeventCallback after = rt_cleanup);
721 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
722 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
723 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
724 void set_record_safe (boost::shared_ptr<RouteList>, bool yn, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
725 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
726 void set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
727 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others=false);
729 PBD::Signal1<void,bool> SoloActive;
730 PBD::Signal0<void> SoloChanged;
731 PBD::Signal0<void> IsolatedChanged;
733 PBD::Signal0<void> session_routes_reconnected;
735 /* monitor/master out */
737 void add_monitor_section ();
738 void reset_monitor_section ();
739 void remove_monitor_section ();
741 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
742 boost::shared_ptr<Route> master_out() const { return _master_out; }
744 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
745 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
746 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
747 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
748 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
749 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
750 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
752 static void set_disable_all_loaded_plugins (bool yn) {
753 _disable_all_loaded_plugins = yn;
755 static bool get_disable_all_loaded_plugins() {
756 return _disable_all_loaded_plugins;
759 uint32_t next_send_id();
760 uint32_t next_aux_send_id();
761 uint32_t next_return_id();
762 uint32_t next_insert_id();
763 void mark_send_id (uint32_t);
764 void mark_aux_send_id (uint32_t);
765 void mark_return_id (uint32_t);
766 void mark_insert_id (uint32_t);
767 void unmark_send_id (uint32_t);
768 void unmark_aux_send_id (uint32_t);
769 void unmark_return_id (uint32_t);
770 void unmark_insert_id (uint32_t);
772 /* s/w "RAID" management */
774 boost::optional<framecnt_t> available_capture_duration();
778 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
779 void remove_bundle (boost::shared_ptr<Bundle>);
780 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
782 PBD::Signal0<void> BundleAddedOrRemoved;
786 /* History (for editors, mixers, UIs etc.) */
788 /** Undo some transactions.
789 * @param n Number of transactions to undo.
791 void undo (uint32_t n) {
795 void redo (uint32_t n) {
799 UndoHistory& history() { return _history; }
801 uint32_t undo_depth() const { return _history.undo_depth(); }
802 uint32_t redo_depth() const { return _history.redo_depth(); }
803 std::string next_undo() const { return _history.next_undo(); }
804 std::string next_redo() const { return _history.next_redo(); }
806 void begin_reversible_command (const std::string& cmd_name);
807 void begin_reversible_command (GQuark);
808 void abort_reversible_command ();
809 void commit_reversible_command (Command* cmd = 0);
811 void add_command (Command *const cmd) {
812 assert (_current_trans);
813 _current_trans->add_command (cmd);
816 /** @return The list of operations that are currently in progress */
817 std::list<GQuark> const & current_operations () {
818 return _current_trans_quarks;
821 bool operation_in_progress (GQuark) const;
823 void add_commands (std::vector<Command*> const & cmds);
825 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
827 // these commands are implemented in libs/ardour/session_command.cc
828 Command* memento_command_factory(XMLNode* n);
829 Command* stateful_diff_command_factory (XMLNode *);
830 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
834 boost::shared_ptr<IO> click_io() { return _click_io; }
835 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
837 /* disk, buffer loads */
839 uint32_t playback_load ();
840 uint32_t capture_load ();
844 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
845 void request_cancel_play_range ();
846 bool get_play_range () const { return _play_range; }
848 void maybe_update_session_range (framepos_t, framepos_t);
850 /* temporary hacks to allow selection to be pushed from GUI into backend.
851 Whenever we move the selection object into libardour, these will go away.
853 void set_range_selection (framepos_t start, framepos_t end);
854 void set_object_selection (framepos_t start, framepos_t end);
855 void clear_range_selection ();
856 void clear_object_selection ();
858 /* buffers for gain and pan */
860 gain_t* gain_automation_buffer () const;
861 gain_t* trim_automation_buffer () const;
862 gain_t* send_gain_automation_buffer () const;
863 pan_t** pan_automation_buffer () const;
865 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
869 static int vst_current_loading_id;
870 static const char* vst_can_do_strings[];
871 static const int vst_can_do_string_count;
873 static intptr_t vst_callback (
882 static PBD::Signal0<void> SendFeedback;
886 boost::shared_ptr<Speakers> get_speakers ();
890 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
891 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
893 void add_controllable (boost::shared_ptr<PBD::Controllable>);
894 void remove_controllable (PBD::Controllable*);
896 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
898 SessionConfiguration config;
900 bool exporting () const {
904 bool bounce_processing() const {
905 return _bounce_processing_active;
908 /* this is a private enum, but setup_enum_writer() needs it,
909 and i can't find a way to give that function
913 enum PostTransportWork {
914 PostTransportStop = 0x1,
915 PostTransportDuration = 0x2,
916 PostTransportLocate = 0x4,
917 PostTransportRoll = 0x8,
918 PostTransportAbort = 0x10,
919 PostTransportOverWrite = 0x20,
920 PostTransportSpeed = 0x40,
921 PostTransportAudition = 0x80,
922 PostTransportReverse = 0x100,
923 PostTransportInputChange = 0x200,
924 PostTransportCurveRealloc = 0x400,
925 PostTransportClearSubstate = 0x800,
926 PostTransportAdjustPlaybackBuffering = 0x1000,
927 PostTransportAdjustCaptureBuffering = 0x2000
936 SlaveState slave_state() const { return _slave_state; }
937 Slave* slave() const { return _slave; }
939 boost::shared_ptr<SessionPlaylists> playlists;
941 void send_mmc_locate (framepos_t);
942 void queue_full_time_code () { _send_timecode_update = true; }
943 void queue_song_position_pointer () { /* currently does nothing */ }
945 bool step_editing() const { return (_step_editors > 0); }
947 void request_suspend_timecode_transmission ();
948 void request_resume_timecode_transmission ();
949 bool timecode_transmission_suspended () const;
951 std::vector<std::string> source_search_path(DataType) const;
952 void ensure_search_path_includes (const std::string& path, DataType type);
953 void remove_dir_from_search_path (const std::string& path, DataType type);
955 std::list<std::string> unknown_processors () const;
957 /** Emitted when a feedback cycle has been detected within Ardour's signal
958 processing path. Until it is fixed (by the user) some (unspecified)
959 routes will not be run.
961 static PBD::Signal0<void> FeedbackDetected;
963 /** Emitted when a graph sort has successfully completed, which means
964 that it has no feedback cycles.
966 static PBD::Signal0<void> SuccessfulGraphSort;
968 /* handlers can return an integer value:
969 0: config.set_audio_search_path() or config.set_midi_search_path() was used
970 to modify the search path and we should try to find it again.
971 1: quit entire session load
972 2: as 0, but don't ask about other missing files
973 3: don't ask about other missing files, and just mark this one missing
974 -1: just mark this one missing
975 any other value: as -1
977 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
979 /** Emitted when the session wants Ardour to quit */
980 static PBD::Signal0<void> Quit;
982 /** Emitted when Ardour is asked to load a session in an older session
983 * format, and makes a backup copy.
985 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
987 SceneChanger* scene_changer() const { return _scene_changer; }
989 boost::shared_ptr<Port> ltc_input_port() const;
990 boost::shared_ptr<Port> ltc_output_port() const;
992 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
993 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
995 MIDI::Port* midi_input_port () const;
996 MIDI::Port* midi_output_port () const;
997 MIDI::Port* mmc_output_port () const;
998 MIDI::Port* mmc_input_port () const;
1000 MIDI::Port* scene_input_port () const;
1001 MIDI::Port* scene_output_port () const;
1003 boost::shared_ptr<MidiPort> scene_in () const;
1004 boost::shared_ptr<MidiPort> scene_out () const;
1006 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1007 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1008 boost::shared_ptr<MidiPort> mtc_output_port () const;
1009 boost::shared_ptr<MidiPort> mtc_input_port () const;
1011 MIDI::MachineControl& mmc() { return *_mmc; }
1013 void reconnect_midi_scene_ports (bool);
1014 void reconnect_mtc_ports ();
1015 void reconnect_mmc_ports (bool);
1018 friend class AudioEngine;
1019 void set_block_size (pframes_t nframes);
1020 void set_frame_rate (framecnt_t nframes);
1021 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1025 void schedule_curve_reallocation ();
1026 void update_latency_compensation (bool force = false);
1029 int create (const std::string& mix_template, BusProfile*);
1033 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
1034 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
1035 StopPendingCapture = 0x4,
1036 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
1037 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
1038 PendingLocate = 0x20,
1041 /* stuff used in process() should be close together to
1045 typedef void (Session::*process_function_type)(pframes_t);
1047 AudioEngine& _engine;
1048 mutable gint processing_prohibited;
1049 process_function_type process_function;
1050 process_function_type last_process_function;
1051 bool _bounce_processing_active;
1052 bool waiting_for_sync_offset;
1053 framecnt_t _base_frame_rate;
1054 framecnt_t _current_frame_rate; //this includes video pullup offset
1055 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1056 int transport_sub_state;
1057 mutable gint _record_status;
1058 framepos_t _transport_frame;
1059 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1063 // varispeed playback
1064 double _transport_speed;
1065 double _default_transport_speed;
1066 double _last_transport_speed;
1067 double _signalled_varispeed;
1068 double _target_transport_speed;
1069 CubicInterpolation interpolation;
1071 bool auto_play_legal;
1072 framepos_t _last_slave_transport_frame;
1073 framecnt_t maximum_output_latency;
1074 framepos_t _requested_return_frame;
1075 pframes_t current_block_size;
1076 framecnt_t _worst_output_latency;
1077 framecnt_t _worst_input_latency;
1078 framecnt_t _worst_track_latency;
1079 bool _have_captured;
1080 bool _non_soloed_outs_muted;
1081 uint32_t _listen_cnt;
1082 uint32_t _solo_isolated_cnt;
1085 bool _under_nsm_control;
1086 unsigned int _xrun_count;
1088 void mtc_status_changed (bool);
1089 PBD::ScopedConnection mtc_status_connection;
1091 void initialize_latencies ();
1092 void set_worst_io_latencies ();
1093 void set_worst_playback_latency ();
1094 void set_worst_capture_latency ();
1095 void set_worst_io_latencies_x (IOChange, void *) {
1096 set_worst_io_latencies ();
1098 void post_capture_latency ();
1099 void post_playback_latency ();
1101 void update_latency_compensation_proxy (void* ignored);
1103 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1105 void process_scrub (pframes_t);
1106 void process_without_events (pframes_t);
1107 void process_with_events (pframes_t);
1108 void process_audition (pframes_t);
1109 int process_export (pframes_t);
1110 int process_export_fw (pframes_t);
1112 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1113 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1114 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1116 static const framecnt_t bounce_chunk_size;
1118 /* slave tracking */
1120 static const int delta_accumulator_size = 25;
1121 int delta_accumulator_cnt;
1122 int32_t delta_accumulator[delta_accumulator_size];
1123 int32_t average_slave_delta;
1125 bool have_first_delta_accumulator;
1127 SlaveState _slave_state;
1129 framepos_t slave_wait_end;
1131 void reset_slave_state ();
1132 bool follow_slave (pframes_t);
1133 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1134 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1135 void follow_slave_silently (pframes_t nframes, float slave_speed);
1137 void switch_to_sync_source (SyncSource); /* !RT context */
1138 void drop_sync_source (); /* !RT context */
1139 void use_sync_source (Slave*); /* RT context */
1141 bool post_export_sync;
1142 framepos_t post_export_position;
1145 bool _export_started;
1146 bool _export_rolling;
1148 boost::shared_ptr<ExportHandler> export_handler;
1149 boost::shared_ptr<ExportStatus> export_status;
1152 int stop_audio_export ();
1153 void finalize_audio_export ();
1154 void finalize_export_internal (bool stop_freewheel);
1155 bool _pre_export_mmc_enabled;
1157 PBD::ScopedConnection export_freewheel_connection;
1159 void get_track_statistics ();
1160 int process_routes (pframes_t, bool& need_butler);
1161 int silent_process_routes (pframes_t, bool& need_butler);
1163 /** @return 1 if there is a pending declick fade-in,
1164 -1 if there is a pending declick fade-out,
1165 0 if there is no pending declick.
1167 int get_transport_declick_required () {
1168 if (transport_sub_state & PendingDeclickIn) {
1169 transport_sub_state &= ~PendingDeclickIn;
1171 } else if (transport_sub_state & PendingDeclickOut) {
1172 /* XXX: not entirely sure why we don't clear this */
1174 } else if (transport_sub_state & PendingLoopDeclickOut) {
1175 /* Return the declick out first ... */
1176 transport_sub_state &= ~PendingLoopDeclickOut;
1178 } else if (transport_sub_state & PendingLoopDeclickIn) {
1179 /* ... then the declick in on the next call */
1180 transport_sub_state &= ~PendingLoopDeclickIn;
1187 bool maybe_stop (framepos_t limit);
1188 bool maybe_sync_start (pframes_t &);
1190 void check_declick_out ();
1196 /** Number of process frames since the last MTC output (when sending MTC); used to
1197 * know when to send full MTC messages every so often.
1199 pframes_t _pframes_since_last_mtc;
1200 bool session_midi_feedback;
1203 framepos_t last_loopend;
1205 boost::scoped_ptr<SessionDirectory> _session_dir;
1208 void graph_reordered ();
1210 /** current snapshot name, without the .ardour suffix */
1211 std::string _current_snapshot_name;
1213 XMLTree* state_tree;
1214 bool state_was_pending;
1215 StateOfTheState _state_of_the_state;
1217 friend class StateProtector;
1218 gint _suspend_save; /* atomic */
1219 volatile bool _save_queued;
1220 Glib::Threads::Mutex save_state_lock;
1222 int load_options (const XMLNode&);
1223 int load_state (std::string snapshot_name);
1225 framepos_t _last_roll_location;
1226 /** the session frame time at which we last rolled, located, or changed transport direction */
1227 framepos_t _last_roll_or_reversal_location;
1228 framepos_t _last_record_location;
1230 bool pending_locate_roll;
1231 framepos_t pending_locate_frame;
1232 bool pending_locate_flush;
1234 bool pending_auto_loop;
1238 static const PostTransportWork ProcessCannotProceedMask =
1240 PostTransportInputChange|
1242 PostTransportReverse|
1243 PostTransportCurveRealloc|
1244 PostTransportAudition|
1245 PostTransportLocate|
1247 PostTransportClearSubstate);
1249 gint _post_transport_work; /* accessed only atomic ops */
1250 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1251 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1252 void add_post_transport_work (PostTransportWork ptw);
1254 void schedule_playback_buffering_adjustment ();
1255 void schedule_capture_buffering_adjustment ();
1257 uint32_t cumulative_rf_motion;
1260 void set_rf_speed (float speed);
1261 void reset_rf_scale (framecnt_t frames_moved);
1263 Locations* _locations;
1264 void location_added (Location*);
1265 void location_removed (Location*);
1266 void locations_changed ();
1267 void _locations_changed (const Locations::LocationList&);
1269 void update_skips (Location*, bool consolidate);
1270 void update_marks (Location* loc);
1271 void consolidate_skips (Location*);
1272 void sync_locations_to_skips ();
1273 void _sync_locations_to_skips ();
1275 PBD::ScopedConnectionList skip_update_connections;
1276 bool _ignore_skips_updates;
1278 PBD::ScopedConnectionList punch_connections;
1279 void auto_punch_start_changed (Location *);
1280 void auto_punch_end_changed (Location *);
1281 void auto_punch_changed (Location *);
1283 PBD::ScopedConnectionList loop_connections;
1284 void auto_loop_changed (Location *);
1285 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1287 int ensure_engine (uint32_t desired_sample_rate);
1288 void pre_engine_init (std::string path);
1289 int post_engine_init ();
1290 int immediately_post_engine ();
1291 void remove_empty_sounds ();
1293 void session_loaded ();
1295 void setup_midi_control ();
1296 int midi_read (MIDI::Port *);
1298 void enable_record ();
1300 void increment_transport_position (framecnt_t val) {
1301 if (max_framepos - val < _transport_frame) {
1302 _transport_frame = max_framepos;
1304 _transport_frame += val;
1308 void decrement_transport_position (framecnt_t val) {
1309 if (val < _transport_frame) {
1310 _transport_frame -= val;
1312 _transport_frame = 0;
1316 void post_transport_motion ();
1317 static void *session_loader_thread (void *arg);
1321 /* Signal Forwarding */
1322 void emit_route_signals ();
1323 void emit_thread_run ();
1324 static void *emit_thread (void *);
1325 void emit_thread_start ();
1326 void emit_thread_terminate ();
1328 pthread_t _rt_emit_thread;
1329 bool _rt_thread_active;
1331 pthread_mutex_t _rt_emit_mutex;
1332 pthread_cond_t _rt_emit_cond;
1333 bool _rt_emit_pending;
1336 /* SessionEventManager interface */
1338 void process_event (SessionEvent*);
1339 void set_next_event ();
1340 void cleanup_event (SessionEvent*,int);
1342 /* MIDI Machine Control */
1345 void spp_continue ();
1348 void mmc_deferred_play (MIDI::MachineControl &);
1349 void mmc_stop (MIDI::MachineControl &);
1350 void mmc_step (MIDI::MachineControl &, int);
1351 void mmc_pause (MIDI::MachineControl &);
1352 void mmc_record_pause (MIDI::MachineControl &);
1353 void mmc_record_strobe (MIDI::MachineControl &);
1354 void mmc_record_exit (MIDI::MachineControl &);
1355 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1356 void mmc_fast_forward (MIDI::MachineControl &);
1357 void mmc_rewind (MIDI::MachineControl &);
1358 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1359 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1360 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1362 struct timeval last_mmc_step;
1365 typedef boost::function<bool()> MidiTimeoutCallback;
1366 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1368 MidiTimeoutList midi_timeouts;
1369 bool mmc_step_timeout ();
1370 void send_immediate_mmc (MIDI::MachineControlCommand);
1372 MIDI::byte mtc_msg[16];
1373 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1374 MIDI::byte midi_msg[16];
1375 double outbound_mtc_timecode_frame;
1376 Timecode::Time transmitting_timecode_time;
1377 int next_quarter_frame_to_send;
1379 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1380 framecnt_t _frames_per_hour;
1381 framecnt_t _timecode_frames_per_hour;
1383 /* cache the most-recently requested time conversions. This helps when we
1384 * have multiple clocks showing the same time (e.g. the transport frame) */
1385 bool last_timecode_valid;
1386 framepos_t last_timecode_when;
1387 Timecode::Time last_timecode;
1389 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1391 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1393 LTCEncoder* ltc_encoder;
1394 ltcsnd_sample_t* ltc_enc_buf;
1396 Timecode::TimecodeFormat ltc_enc_tcformat;
1397 int32_t ltc_buf_off;
1398 int32_t ltc_buf_len;
1401 int32_t ltc_enc_byte;
1402 framepos_t ltc_enc_pos;
1404 framepos_t ltc_enc_off;
1406 framepos_t ltc_prev_cycle;
1408 framepos_t ltc_timecode_offset;
1409 bool ltc_timecode_negative_offset;
1411 LatencyRange ltc_out_latency;
1413 void ltc_tx_initialize();
1414 void ltc_tx_cleanup();
1415 void ltc_tx_reset();
1416 void ltc_tx_resync_latency();
1417 void ltc_tx_recalculate_position();
1418 void ltc_tx_parse_offset();
1419 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1421 void reset_record_status ();
1423 int no_roll (pframes_t nframes);
1424 int fail_roll (pframes_t nframes);
1426 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1427 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1429 MidiControlUI* midi_control_ui;
1431 int start_midi_thread ();
1433 void set_play_loop (bool yn, double speed);
1434 void unset_play_loop ();
1435 void overwrite_some_buffers (Track *);
1436 void flush_all_inserts ();
1437 int micro_locate (framecnt_t distance);
1438 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1439 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1440 void force_locate (framepos_t frame, bool with_roll = false);
1441 void set_track_speed (Track *, double speed);
1442 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1443 void stop_transport (bool abort = false, bool clear_state = false);
1444 void start_transport ();
1445 void realtime_stop (bool abort, bool clear_state);
1446 void realtime_locate ();
1447 void non_realtime_start_scrub ();
1448 void non_realtime_set_speed ();
1449 void non_realtime_locate ();
1450 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1451 void non_realtime_overwrite (int entry_request_count, bool& finished);
1452 void post_transport ();
1453 void engine_halted ();
1454 void xrun_recovery ();
1455 void set_track_loop (bool);
1456 bool select_playhead_priority_target (framepos_t&);
1457 void follow_playhead_priority ();
1459 /* These are synchronous and so can only be called from within the process
1463 int send_full_time_code (framepos_t, pframes_t nframes);
1464 void send_song_position_pointer (framepos_t);
1466 TempoMap *_tempo_map;
1467 void tempo_map_changed (const PBD::PropertyChange&);
1469 /* edit/mix groups */
1471 int load_route_groups (const XMLNode&, int);
1473 std::list<RouteGroup *> _route_groups;
1474 RouteGroup* _all_route_group;
1478 boost::shared_ptr<Graph> _process_graph;
1480 SerializedRCUManager<RouteList> routes;
1482 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save);
1483 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect);
1484 bool _adding_routes_in_progress;
1485 bool _reconnecting_routes_in_progress;
1486 bool _route_deletion_in_progress;
1488 uint32_t destructive_index;
1490 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1491 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1493 void route_processors_changed (RouteProcessorChange);
1495 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1496 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1497 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1498 bool with_lock, bool connect_inputs = true,
1499 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1500 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1502 /* track numbering */
1504 void reassign_track_numbers ();
1505 uint32_t _track_number_decimals;
1509 bool solo_update_disabled;
1511 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1512 void route_mute_changed (void *src);
1513 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1514 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1515 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1517 void listen_position_changed ();
1518 void solo_control_mode_changed ();
1520 /* REGION MANAGEMENT */
1522 mutable Glib::Threads::Mutex region_lock;
1524 int load_regions (const XMLNode& node);
1525 int load_compounds (const XMLNode& node);
1527 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1528 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1529 void route_group_property_changed (RouteGroup *);
1533 mutable Glib::Threads::Mutex source_lock;
1536 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1539 void reset_write_sources (bool mark_write_complete, bool force = false);
1544 int load_sources (const XMLNode& node);
1545 XMLNode& get_sources_as_xml ();
1547 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1551 void remove_playlist (boost::weak_ptr<Playlist>);
1552 void track_playlist_changed (boost::weak_ptr<Track>);
1553 void playlist_region_added (boost::weak_ptr<Region>);
1554 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1555 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1557 /* CURVES and AUTOMATION LISTS */
1558 std::map<PBD::ID, AutomationList*> automation_lists;
1560 /* DEFAULT FADE CURVES */
1562 float default_fade_steepness;
1563 float default_fade_msecs;
1567 boost::shared_ptr<Auditioner> auditioner;
1568 void set_audition (boost::shared_ptr<Region>);
1569 void non_realtime_set_audition ();
1570 boost::shared_ptr<Region> pending_audition_region;
1576 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1578 /* INSERT AND SEND MANAGEMENT */
1580 boost::dynamic_bitset<uint32_t> send_bitset;
1581 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1582 boost::dynamic_bitset<uint32_t> return_bitset;
1583 boost::dynamic_bitset<uint32_t> insert_bitset;
1587 struct space_and_path {
1588 uint32_t blocks; ///< 4kB blocks
1589 bool blocks_unknown; ///< true if blocks is unknown
1594 , blocks_unknown (true)
1598 struct space_and_path_ascending_cmp {
1599 bool operator() (space_and_path a, space_and_path b) {
1600 if (a.blocks_unknown != b.blocks_unknown) {
1601 return !a.blocks_unknown;
1603 return a.blocks > b.blocks;
1607 void setup_raid_path (std::string path);
1609 std::vector<space_and_path> session_dirs;
1610 std::vector<space_and_path>::iterator last_rr_session_dir;
1611 uint32_t _total_free_4k_blocks;
1612 /** If this is true, _total_free_4k_blocks is not definite,
1613 as one or more of the session directories' filesystems
1614 could not report free space.
1616 bool _total_free_4k_blocks_uncertain;
1617 Glib::Threads::Mutex space_lock;
1619 bool no_questions_about_missing_files;
1621 std::string get_best_session_directory_for_new_audio ();
1623 mutable gint _playback_load;
1624 mutable gint _capture_load;
1628 SerializedRCUManager<BundleList> _bundles;
1629 XMLNode* _bundle_xml_node;
1630 int load_bundles (XMLNode const &);
1632 UndoHistory _history;
1633 /** current undo transaction, or 0 */
1634 UndoTransaction* _current_trans;
1635 /** GQuarks to describe the reversible commands that are currently in progress.
1636 * These may be nested, in which case more recently-started commands are toward
1637 * the front of the list.
1639 std::list<GQuark> _current_trans_quarks;
1641 int backend_sync_callback (TransportState, framepos_t);
1643 void process_rtop (SessionEvent*);
1645 void update_latency (bool playback);
1647 XMLNode& state(bool);
1650 typedef std::list<Click*> Clicks;
1653 boost::shared_ptr<IO> _click_io;
1654 boost::shared_ptr<Amp> _click_gain;
1656 Sample* click_emphasis_data;
1657 framecnt_t click_length;
1658 framecnt_t click_emphasis_length;
1659 mutable Glib::Threads::RWLock click_lock;
1661 static const Sample default_click[];
1662 static const framecnt_t default_click_length;
1663 static const Sample default_click_emphasis[];
1664 static const framecnt_t default_click_emphasis_length;
1667 framepos_t _clicks_cleared;
1668 void setup_click_sounds (int which);
1669 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1670 void clear_clicks ();
1671 void click (framepos_t start, framecnt_t nframes);
1673 std::vector<Route*> master_outs;
1675 /* range playback */
1677 std::list<AudioRange> current_audio_range;
1679 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1680 void unset_play_range ();
1682 /* temporary hacks to allow selection to be pushed from GUI into backend
1683 Whenever we move the selection object into libardour, these will go away.
1685 Evoral::Range<framepos_t> _range_selection;
1686 Evoral::Range<framepos_t> _object_selection;
1691 boost::shared_ptr<Route> _master_out;
1692 boost::shared_ptr<Route> _monitor_out;
1694 void auto_connect_master_bus ();
1696 /* Windows VST support */
1698 long _windows_vst_callback (
1707 int find_all_sources (std::string path, std::set<std::string>& result);
1708 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1710 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1711 Glib::Threads::Mutex controllables_lock;
1712 Controllables controllables;
1714 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1716 void reset_native_file_format();
1717 bool first_file_data_format_reset;
1718 bool first_file_header_format_reset;
1720 void config_changed (std::string, bool);
1722 XMLNode& get_control_protocol_state ();
1724 void set_history_depth (uint32_t depth);
1726 static bool _disable_all_loaded_plugins;
1728 mutable bool have_looped; ///< Used in ::audible_frame(*)
1730 void update_route_record_state ();
1731 gint _have_rec_enabled_track;
1732 gint _have_rec_disabled_track;
1734 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1736 /* realtime "apply to set of routes" operations */
1737 template<typename T> SessionEvent*
1738 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, bool group_override,
1739 void (Session::*method) (boost::shared_ptr<RouteList>, T, bool)) {
1740 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1741 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1742 ev->rt_return = after;
1743 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1748 void rt_cancel_solo_after_disconnect (boost::shared_ptr<RouteList>, bool upstream, bool /* ignored*/ );
1749 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1750 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1751 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1752 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1753 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1754 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1755 void rt_set_record_safe (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1756 void rt_set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, bool group_override);
1758 /** temporary list of Diskstreams used only during load of 2.X sessions */
1759 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1761 void set_session_range_location (framepos_t, framepos_t);
1763 void setup_midi_machine_control ();
1765 void step_edit_status_change (bool);
1766 uint32_t _step_editors;
1768 /** true if timecode transmission by the transport is suspended, otherwise false */
1769 mutable gint _suspend_timecode_transmission;
1771 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1773 void start_time_changed (framepos_t);
1774 void end_time_changed (framepos_t);
1776 void set_track_monitor_input_status (bool);
1777 framepos_t compute_stop_limit () const;
1779 boost::shared_ptr<Speakers> _speakers;
1780 void load_nested_sources (const XMLNode& node);
1782 /** The directed graph of routes that is currently being used for audio processing
1783 and solo/mute computations.
1785 GraphEdges _current_route_graph;
1787 uint32_t next_control_id () const;
1788 int32_t _order_hint;
1789 bool ignore_route_processor_changes;
1791 MidiClockTicker* midi_clock;
1793 boost::shared_ptr<IO> _ltc_input;
1794 boost::shared_ptr<IO> _ltc_output;
1796 void reconnect_ltc_input ();
1797 void reconnect_ltc_output ();
1799 /* Scene Changing */
1800 SceneChanger* _scene_changer;
1802 /* persistent, non-track related MIDI ports */
1803 MidiPortManager* _midi_ports;
1804 MIDI::MachineControl* _mmc;
1807 void setup_click ();
1808 void setup_click_state (const XMLNode*);
1809 void setup_bundles ();
1811 void save_as_bring_callback (uint32_t, uint32_t, std::string);
1813 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
1817 } // namespace ARDOUR
1819 #endif /* __ardour_session_h__ */