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 PBD::Signal0<void> DirtyChanged;
182 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
184 static PBD::Signal1<void,std::string> Dialog;
186 int ensure_subdirs ();
188 std::string automation_dir () const; ///< Automation data
189 std::string analysis_dir () const; ///< Analysis data
190 std::string plugins_dir () const; ///< Plugin state
191 std::string externals_dir () const; ///< Links to external files
193 std::string peak_path (std::string) const;
195 std::string peak_path_from_audio_path (std::string) const;
196 bool audio_source_name_is_unique (const std::string& name);
197 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);
198 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
199 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
200 std::string new_midi_source_path (const std::string&);
201 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path, const std::string& name);
202 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path, uint32_t channels);
204 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
206 void process (pframes_t nframes);
208 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
209 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true );
210 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
211 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
213 bool have_rec_enabled_track () const;
215 bool have_captured() const { return _have_captured; }
217 void refill_all_track_buffers ();
218 Butler* butler() { return _butler; }
219 void butler_transport_work ();
221 void refresh_disk_space ();
223 int load_diskstreams_2X (XMLNode const &, int);
225 int load_routes (const XMLNode&, int);
226 boost::shared_ptr<RouteList> get_routes() const {
227 return routes.reader ();
230 boost::shared_ptr<RouteList> get_tracks() const;
231 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
232 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
234 uint32_t nroutes() const { return routes.reader()->size(); }
235 uint32_t ntracks () const;
236 uint32_t nbusses () const;
238 boost::shared_ptr<BundleList> bundles () {
239 return _bundles.reader ();
242 struct LIBARDOUR_API RoutePublicOrderSorter {
243 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
246 void set_order_hint (int32_t order_hint) {_order_hint = order_hint;};
247 void notify_remote_id_change ();
248 void sync_order_keys ();
250 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
251 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
252 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
254 static char session_name_is_legal (const std::string&);
255 bool io_name_is_legal (const std::string&);
256 boost::shared_ptr<Route> route_by_name (std::string);
257 boost::shared_ptr<Route> route_by_id (PBD::ID);
258 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
259 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID);
260 void routes_using_input_from (const std::string& str, RouteList& rl);
262 bool route_name_unique (std::string) const;
263 bool route_name_internal (std::string) const;
265 uint32_t track_number_decimals () const {
266 return _track_number_decimals;
269 bool get_record_enabled() const {
270 return (record_status () >= Enabled);
273 RecordState record_status() const {
274 return (RecordState) g_atomic_int_get (&_record_status);
277 bool actively_recording () const {
278 return record_status() == Recording;
281 bool record_enabling_legal () const;
282 void maybe_enable_record ();
283 void disable_record (bool rt_context, bool force = false);
284 void step_back_from_record ();
286 void maybe_write_autosave ();
288 /* Emitted when all i/o connections are complete */
290 PBD::Signal0<void> IOConnectionsComplete;
292 /* Record status signals */
294 PBD::Signal0<void> RecordStateChanged;
296 /* Transport mechanism signals */
298 /** Emitted on the following changes in transport state:
299 * - stop (from the butler thread)
300 * - change in whether or not we are looping (from the process thread)
301 * - change in the play range (from the process thread)
302 * - start (from the process thread)
305 PBD::Signal0<void> TransportStateChange;
307 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
308 PBD::Signal1<void,framepos_t> Xrun;
309 PBD::Signal0<void> TransportLooped;
311 /** emitted when a locate has occurred */
312 PBD::Signal0<void> Located;
314 PBD::Signal1<void,RouteList&> RouteAdded;
315 /** Emitted when a property of one of our route groups changes.
316 * The parameter is the RouteGroup that has changed.
318 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
319 /** Emitted when a route is added to one of our route groups.
320 * First parameter is the RouteGroup, second is the route.
322 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
323 /** Emitted when a route is removed from one of our route groups.
324 * First parameter is the RouteGroup, second is the route.
326 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
328 /* Step Editing status changed */
329 PBD::Signal1<void,bool> StepEditStatusChange;
331 void queue_event (SessionEvent*);
333 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
334 void request_bounded_roll (framepos_t start, framepos_t end);
335 void request_stop (bool abort = false, bool clear_state = false);
336 void request_locate (framepos_t frame, bool with_roll = false);
338 void request_play_loop (bool yn, bool leave_rolling = false);
339 bool get_play_loop () const { return play_loop; }
341 framepos_t last_transport_start () const { return _last_roll_location; }
344 void use_rf_shuttle_speed ();
345 void allow_auto_play (bool yn);
346 void request_transport_speed (double speed, bool as_default = false);
347 void request_transport_speed_nonzero (double, bool as_default = false);
348 void request_overwrite_buffer (Track *);
349 void adjust_playback_buffering();
350 void adjust_capture_buffering();
351 void request_track_speed (Track *, double speed);
352 void request_input_change_handling ();
354 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
355 bool transport_locked () const;
359 framepos_t current_end_frame () const;
360 framepos_t current_start_frame () const;
361 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
362 framecnt_t frame_rate () const { return _current_frame_rate; }
363 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
364 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
365 framecnt_t frames_per_hour () const { return _frames_per_hour; }
367 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
368 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
370 MIDI::byte get_mtc_timecode_bits() const {
371 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
374 double timecode_frames_per_second() const;
375 bool timecode_drop_frames() const;
379 Locations *locations() { return _locations; }
381 PBD::Signal1<void,Location*> auto_loop_location_changed;
382 PBD::Signal1<void,Location*> auto_punch_location_changed;
383 PBD::Signal0<void> locations_modified;
385 void set_auto_punch_location (Location *);
386 void set_auto_loop_location (Location *);
387 void set_session_extents (framepos_t start, framepos_t end);
388 int location_name(std::string& result, std::string base = std::string(""));
390 pframes_t get_block_size() const { return current_block_size; }
391 framecnt_t worst_output_latency () const { return _worst_output_latency; }
392 framecnt_t worst_input_latency () const { return _worst_input_latency; }
393 framecnt_t worst_track_latency () const { return _worst_track_latency; }
394 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
397 std::string new_parent_folder; /* parent folder where new session folder will be created */
398 std::string new_name; /* name of newly saved session */
399 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
400 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
401 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
403 /* emitted as we make progress. 3 arguments passed to signal
406 * 1: percentage complete measured as a fraction (0-1.0) of
407 * total data copying done.
408 * 2: number of files copied so far
409 * 3: total number of files to copy
411 * Handler should return true for save-as to continue, or false
412 * to stop (and remove all evidence of partial save-as).
414 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
416 /* if save_as() returns non-zero, this string will indicate the reason why.
418 std::string failure_message;
421 int save_as (SaveAs&);
422 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false);
423 int restore_state (std::string snapshot_name);
424 int save_template (std::string template_name);
425 int save_history (std::string snapshot_name = "");
426 int restore_history (std::string snapshot_name);
427 void remove_state (std::string snapshot_name);
428 void rename_state (std::string old_name, std::string new_name);
429 void remove_pending_capture_state ();
430 int rename (const std::string&, bool after_copy = false);
431 bool get_nsm_state () const { return _under_nsm_control; }
432 void set_nsm_state (bool state) { _under_nsm_control = state; }
433 bool save_default_options ();
435 PBD::Signal1<void,std::string> StateSaved;
436 PBD::Signal0<void> StateReady;
438 /* emitted when session needs to be saved due to some internal
439 * event or condition (i.e. not in response to a user request).
441 * Only one object should
442 * connect to this signal and take responsibility.
444 * Argument is the snapshot name to use when saving.
446 PBD::Signal1<void,std::string> SaveSessionRequested;
448 /* emitted during a session save to allow other entities to add state, via
449 * extra XML, to the session state
451 PBD::Signal0<void> SessionSaveUnderway;
453 std::vector<std::string> possible_states() const;
454 static std::vector<std::string> possible_states (std::string path);
456 XMLNode& get_state();
457 int set_state(const XMLNode& node, int version); // not idempotent
458 XMLNode& get_template();
460 /// The instant xml file is written to the session directory
461 void add_instant_xml (XMLNode&, bool write_to_config = true);
462 XMLNode* instant_xml (const std::string& str);
464 enum StateOfTheState {
469 InitialConnecting = 0x8,
474 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
476 class StateProtector {
478 StateProtector (Session* s) : _session (s) {
479 g_atomic_int_inc (&s->_suspend_save);
482 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
483 while (_session->_save_queued) {
484 _session->_save_queued = false;
485 _session->save_state ("");
493 void add_route_group (RouteGroup *);
494 void remove_route_group (RouteGroup&);
495 void reorder_route_groups (std::list<RouteGroup*>);
497 RouteGroup* route_group_by_name (std::string);
498 RouteGroup& all_route_group() const;
500 PBD::Signal1<void,RouteGroup*> route_group_added;
501 PBD::Signal0<void> route_group_removed;
502 PBD::Signal0<void> route_groups_reordered;
504 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
505 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
510 std::list<RouteGroup*> const & route_groups () const {
511 return _route_groups;
514 /* fundamental operations. duh. */
516 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
519 TrackMode mode = Normal,
520 RouteGroup* route_group = 0,
521 uint32_t how_many = 1,
522 std::string name_template = ""
525 RouteList new_audio_route (
526 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
529 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
530 const ChanCount& input, const ChanCount& output,
531 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
532 TrackMode mode = Normal,
533 RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
536 void remove_route (boost::shared_ptr<Route>);
537 void resort_routes ();
538 void resort_routes_using (boost::shared_ptr<RouteList>);
540 AudioEngine & engine() { return _engine; }
541 AudioEngine const & engine () const { return _engine; }
545 framepos_t transport_frame () const {return _transport_frame; }
546 framepos_t record_location () const {return _last_record_location; }
547 framepos_t audible_frame () const;
548 framepos_t requested_return_frame() const { return _requested_return_frame; }
549 void set_requested_return_frame(framepos_t return_to);
563 void sync_time_vars();
565 void bbt_time (framepos_t when, Timecode::BBT_Time&);
566 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
567 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
568 void timecode_time (Timecode::Time &);
569 void timecode_time (framepos_t when, Timecode::Time&);
570 void timecode_time_subframes (framepos_t when, Timecode::Time&);
572 void timecode_duration (framecnt_t, Timecode::Time&) const;
573 void timecode_duration_string (char *, size_t len, framecnt_t) const;
575 framecnt_t convert_to_frames (AnyTime const & position);
576 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
578 static PBD::Signal1<void, framepos_t> StartTimeChanged;
579 static PBD::Signal1<void, framepos_t> EndTimeChanged;
581 void request_sync_source (Slave*);
582 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
584 double transport_speed() const { return _transport_speed; }
585 bool transport_stopped() const { return _transport_speed == 0.0f; }
586 bool transport_rolling() const { return _transport_speed != 0.0f; }
588 bool silent () { return _silent; }
590 TempoMap& tempo_map() { return *_tempo_map; }
591 const TempoMap& tempo_map() const { return *_tempo_map; }
595 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
597 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
598 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
599 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
601 /* source management */
603 void import_files (ImportStatus&);
604 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
605 std::string build_tmp_convert_name (std::string file);
607 boost::shared_ptr<ExportHandler> get_export_handler ();
608 boost::shared_ptr<ExportStatus> get_export_status ();
610 int start_audio_export (framepos_t position);
612 PBD::Signal1<int, framecnt_t> ProcessExport;
613 static PBD::Signal2<void,std::string, std::string> Exported;
615 void add_source (boost::shared_ptr<Source>);
616 void remove_source (boost::weak_ptr<Source>);
618 void cleanup_regions();
619 int cleanup_sources (CleanupReport&);
620 int cleanup_trash_sources (CleanupReport&);
622 int destroy_sources (std::list<boost::shared_ptr<Source> >);
624 int remove_last_capture ();
626 /** handlers should return 0 for "everything OK", and any other value for
627 * "cannot setup audioengine".
629 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
631 /** handlers should return -1 for "stop cleanup",
632 0 for "yes, delete this playlist",
633 1 for "no, don't delete this playlist".
635 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
637 /** handlers should return 0 for "ignore the rate mismatch",
638 !0 for "do not use this session"
640 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
642 /** handlers should return !0 for use pending state, 0 for ignore it.
644 static PBD::Signal0<int> AskAboutPendingState;
646 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
647 size_t, std::string const &, uint32_t, bool destructive);
649 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
650 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
652 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
653 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
654 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
655 uint32_t count_sources_by_origin (const std::string&);
657 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
659 /* Curves and AutomationLists (TODO when they go away) */
660 void add_automation_list(AutomationList*);
664 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
665 void audition_playlist ();
666 void audition_region (boost::shared_ptr<Region>);
667 void cancel_audition ();
668 bool is_auditioning () const;
670 PBD::Signal1<void,bool> AuditionActive;
672 /* flattening stuff */
674 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
675 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
676 boost::shared_ptr<Processor> endpoint,
677 bool include_endpoint, bool for_export, bool for_freeze);
678 int freeze_all (InterThreadInfo&);
680 /* session-wide solo/mute/rec-enable */
682 bool soloing() const { return _non_soloed_outs_muted; }
683 bool listening() const { return _listen_cnt > 0; }
684 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
686 static const SessionEvent::RTeventCallback rt_cleanup;
688 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
689 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
690 void cancel_solo_after_disconnect (boost::shared_ptr<Route>, bool upstream, SessionEvent::RTeventCallback after = rt_cleanup);
691 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
692 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
693 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
694 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
695 void set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
696 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others=false);
698 PBD::Signal1<void,bool> SoloActive;
699 PBD::Signal0<void> SoloChanged;
700 PBD::Signal0<void> IsolatedChanged;
702 /* monitor/master out */
704 void add_monitor_section ();
705 void remove_monitor_section ();
707 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
708 boost::shared_ptr<Route> master_out() const { return _master_out; }
710 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
711 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
712 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
713 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
714 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
715 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
716 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
718 static void set_disable_all_loaded_plugins (bool yn) {
719 _disable_all_loaded_plugins = yn;
721 static bool get_disable_all_loaded_plugins() {
722 return _disable_all_loaded_plugins;
725 uint32_t next_send_id();
726 uint32_t next_aux_send_id();
727 uint32_t next_return_id();
728 uint32_t next_insert_id();
729 void mark_send_id (uint32_t);
730 void mark_aux_send_id (uint32_t);
731 void mark_return_id (uint32_t);
732 void mark_insert_id (uint32_t);
733 void unmark_send_id (uint32_t);
734 void unmark_aux_send_id (uint32_t);
735 void unmark_return_id (uint32_t);
736 void unmark_insert_id (uint32_t);
738 /* s/w "RAID" management */
740 boost::optional<framecnt_t> available_capture_duration();
744 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
745 void remove_bundle (boost::shared_ptr<Bundle>);
746 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
748 PBD::Signal0<void> BundleAddedOrRemoved;
752 /* History (for editors, mixers, UIs etc.) */
754 /** Undo some transactions.
755 * @param n Number of transactions to undo.
757 void undo (uint32_t n) {
761 void redo (uint32_t n) {
765 UndoHistory& history() { return _history; }
767 uint32_t undo_depth() const { return _history.undo_depth(); }
768 uint32_t redo_depth() const { return _history.redo_depth(); }
769 std::string next_undo() const { return _history.next_undo(); }
770 std::string next_redo() const { return _history.next_redo(); }
772 void begin_reversible_command (const std::string& cmd_name);
773 void begin_reversible_command (GQuark);
774 void abort_reversible_command ();
775 void commit_reversible_command (Command* cmd = 0);
777 void add_command (Command *const cmd) {
778 assert (_current_trans);
779 _current_trans->add_command (cmd);
782 /** @return The list of operations that are currently in progress */
783 std::list<GQuark> const & current_operations () {
784 return _current_trans_quarks;
787 bool operation_in_progress (GQuark) const;
789 void add_commands (std::vector<Command*> const & cmds);
791 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
793 // these commands are implemented in libs/ardour/session_command.cc
794 Command* memento_command_factory(XMLNode* n);
795 Command* stateful_diff_command_factory (XMLNode *);
796 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
800 boost::shared_ptr<IO> click_io() { return _click_io; }
801 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
803 /* disk, buffer loads */
805 uint32_t playback_load ();
806 uint32_t capture_load ();
810 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
811 void request_cancel_play_range ();
812 bool get_play_range () const { return _play_range; }
814 void maybe_update_session_range (framepos_t, framepos_t);
816 /* buffers for gain and pan */
818 gain_t* gain_automation_buffer () const;
819 gain_t* send_gain_automation_buffer () const;
820 pan_t** pan_automation_buffer () const;
822 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
826 static int vst_current_loading_id;
827 static const char* vst_can_do_strings[];
828 static const int vst_can_do_string_count;
830 static intptr_t vst_callback (
839 static PBD::Signal0<void> SendFeedback;
843 boost::shared_ptr<Speakers> get_speakers ();
847 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
848 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
850 void add_controllable (boost::shared_ptr<PBD::Controllable>);
851 void remove_controllable (PBD::Controllable*);
853 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
855 SessionConfiguration config;
857 bool exporting () const {
861 bool bounce_processing() const {
862 return _bounce_processing_active;
865 /* this is a private enum, but setup_enum_writer() needs it,
866 and i can't find a way to give that function
870 enum PostTransportWork {
871 PostTransportStop = 0x1,
872 PostTransportDuration = 0x2,
873 PostTransportLocate = 0x4,
874 PostTransportRoll = 0x8,
875 PostTransportAbort = 0x10,
876 PostTransportOverWrite = 0x20,
877 PostTransportSpeed = 0x40,
878 PostTransportAudition = 0x80,
879 PostTransportReverse = 0x100,
880 PostTransportInputChange = 0x200,
881 PostTransportCurveRealloc = 0x400,
882 PostTransportClearSubstate = 0x800,
883 PostTransportAdjustPlaybackBuffering = 0x1000,
884 PostTransportAdjustCaptureBuffering = 0x2000
893 SlaveState slave_state() const { return _slave_state; }
894 Slave* slave() const { return _slave; }
896 boost::shared_ptr<SessionPlaylists> playlists;
898 void send_mmc_locate (framepos_t);
899 void queue_full_time_code () { _send_timecode_update = true; }
900 void queue_song_position_pointer () { /* currently does nothing */ }
902 bool step_editing() const { return (_step_editors > 0); }
904 void request_suspend_timecode_transmission ();
905 void request_resume_timecode_transmission ();
906 bool timecode_transmission_suspended () const;
908 std::vector<std::string> source_search_path(DataType) const;
909 void ensure_search_path_includes (const std::string& path, DataType type);
910 void remove_dir_from_search_path (const std::string& path, DataType type);
912 std::list<std::string> unknown_processors () const;
914 /** Emitted when a feedback cycle has been detected within Ardour's signal
915 processing path. Until it is fixed (by the user) some (unspecified)
916 routes will not be run.
918 static PBD::Signal0<void> FeedbackDetected;
920 /** Emitted when a graph sort has successfully completed, which means
921 that it has no feedback cycles.
923 static PBD::Signal0<void> SuccessfulGraphSort;
925 /* handlers can return an integer value:
926 0: config.set_audio_search_path() or config.set_midi_search_path() was used
927 to modify the search path and we should try to find it again.
928 1: quit entire session load
929 2: as 0, but don't ask about other missing files
930 3: don't ask about other missing files, and just mark this one missing
931 -1: just mark this one missing
932 any other value: as -1
934 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
936 /** Emitted when the session wants Ardour to quit */
937 static PBD::Signal0<void> Quit;
939 /** Emitted when Ardour is asked to load a session in an older session
940 * format, and makes a backup copy.
942 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
944 SceneChanger* scene_changer() const { return _scene_changer; }
946 boost::shared_ptr<Port> ltc_input_port() const;
947 boost::shared_ptr<Port> ltc_output_port() const;
949 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
950 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
952 MIDI::Port* midi_input_port () const;
953 MIDI::Port* midi_output_port () const;
954 MIDI::Port* mmc_output_port () const;
955 MIDI::Port* mmc_input_port () const;
957 MIDI::Port* scene_input_port () const;
958 MIDI::Port* scene_output_port () const;
960 boost::shared_ptr<MidiPort> scene_in () const;
961 boost::shared_ptr<MidiPort> scene_out () const;
963 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
964 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
965 boost::shared_ptr<MidiPort> mtc_output_port () const;
966 boost::shared_ptr<MidiPort> mtc_input_port () const;
968 MIDI::MachineControl& mmc() { return *_mmc; }
971 friend class AudioEngine;
972 void set_block_size (pframes_t nframes);
973 void set_frame_rate (framecnt_t nframes);
974 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
978 void schedule_curve_reallocation ();
979 void update_latency_compensation (bool force = false);
982 int create (const std::string& mix_template, BusProfile*);
986 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
987 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
988 StopPendingCapture = 0x4,
989 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
990 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
991 PendingLocate = 0x20,
994 /* stuff used in process() should be close together to
998 typedef void (Session::*process_function_type)(pframes_t);
1000 AudioEngine& _engine;
1001 mutable gint processing_prohibited;
1002 process_function_type process_function;
1003 process_function_type last_process_function;
1004 bool _bounce_processing_active;
1005 bool waiting_for_sync_offset;
1006 framecnt_t _base_frame_rate;
1007 framecnt_t _current_frame_rate; //this includes video pullup offset
1008 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1009 int transport_sub_state;
1010 mutable gint _record_status;
1011 framepos_t _transport_frame;
1012 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1016 // varispeed playback
1017 double _transport_speed;
1018 double _default_transport_speed;
1019 double _last_transport_speed;
1020 double _signalled_varispeed;
1021 double _target_transport_speed;
1022 CubicInterpolation interpolation;
1024 bool auto_play_legal;
1025 framepos_t _last_slave_transport_frame;
1026 framecnt_t maximum_output_latency;
1027 framepos_t _requested_return_frame;
1028 pframes_t current_block_size;
1029 framecnt_t _worst_output_latency;
1030 framecnt_t _worst_input_latency;
1031 framecnt_t _worst_track_latency;
1032 bool _have_captured;
1033 bool _non_soloed_outs_muted;
1034 uint32_t _listen_cnt;
1035 uint32_t _solo_isolated_cnt;
1038 bool _under_nsm_control;
1040 void initialize_latencies ();
1041 void set_worst_io_latencies ();
1042 void set_worst_playback_latency ();
1043 void set_worst_capture_latency ();
1044 void set_worst_io_latencies_x (IOChange, void *) {
1045 set_worst_io_latencies ();
1047 void post_capture_latency ();
1048 void post_playback_latency ();
1050 void update_latency_compensation_proxy (void* ignored);
1052 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1054 void process_scrub (pframes_t);
1055 void process_without_events (pframes_t);
1056 void process_with_events (pframes_t);
1057 void process_audition (pframes_t);
1058 int process_export (pframes_t);
1059 int process_export_fw (pframes_t);
1061 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1062 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1063 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1065 static const framecnt_t bounce_chunk_size;
1067 /* slave tracking */
1069 static const int delta_accumulator_size = 25;
1070 int delta_accumulator_cnt;
1071 int32_t delta_accumulator[delta_accumulator_size];
1072 int32_t average_slave_delta;
1074 bool have_first_delta_accumulator;
1076 SlaveState _slave_state;
1077 framepos_t slave_wait_end;
1079 void reset_slave_state ();
1080 bool follow_slave (pframes_t);
1081 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1082 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1083 void follow_slave_silently (pframes_t nframes, float slave_speed);
1085 void switch_to_sync_source (SyncSource); /* !RT context */
1086 void drop_sync_source (); /* !RT context */
1087 void use_sync_source (Slave*); /* RT context */
1089 bool post_export_sync;
1090 framepos_t post_export_position;
1093 bool _export_started;
1094 bool _export_rolling;
1096 boost::shared_ptr<ExportHandler> export_handler;
1097 boost::shared_ptr<ExportStatus> export_status;
1100 int stop_audio_export ();
1101 void finalize_audio_export ();
1102 void finalize_export_internal (bool stop_freewheel);
1103 bool _pre_export_mmc_enabled;
1105 PBD::ScopedConnection export_freewheel_connection;
1107 void get_track_statistics ();
1108 int process_routes (pframes_t, bool& need_butler);
1109 int silent_process_routes (pframes_t, bool& need_butler);
1111 /** @return 1 if there is a pending declick fade-in,
1112 -1 if there is a pending declick fade-out,
1113 0 if there is no pending declick.
1115 int get_transport_declick_required () {
1116 if (transport_sub_state & PendingDeclickIn) {
1117 transport_sub_state &= ~PendingDeclickIn;
1119 } else if (transport_sub_state & PendingDeclickOut) {
1120 /* XXX: not entirely sure why we don't clear this */
1122 } else if (transport_sub_state & PendingLoopDeclickOut) {
1123 /* Return the declick out first ... */
1124 transport_sub_state &= ~PendingLoopDeclickOut;
1126 } else if (transport_sub_state & PendingLoopDeclickIn) {
1127 /* ... then the declick in on the next call */
1128 transport_sub_state &= ~PendingLoopDeclickIn;
1135 bool maybe_stop (framepos_t limit);
1136 bool maybe_sync_start (pframes_t &);
1138 void check_declick_out ();
1144 /** Number of process frames since the last MTC output (when sending MTC); used to
1145 * know when to send full MTC messages every so often.
1147 pframes_t _pframes_since_last_mtc;
1148 bool session_midi_feedback;
1151 framepos_t last_loopend;
1153 boost::scoped_ptr<SessionDirectory> _session_dir;
1156 void graph_reordered ();
1158 /** current snapshot name, without the .ardour suffix */
1159 std::string _current_snapshot_name;
1161 XMLTree* state_tree;
1162 bool state_was_pending;
1163 StateOfTheState _state_of_the_state;
1165 friend class StateProtector;
1166 gint _suspend_save; /* atomic */
1167 volatile bool _save_queued;
1168 Glib::Threads::Mutex save_state_lock;
1170 int load_options (const XMLNode&);
1171 int load_state (std::string snapshot_name);
1173 framepos_t _last_roll_location;
1174 /** the session frame time at which we last rolled, located, or changed transport direction */
1175 framepos_t _last_roll_or_reversal_location;
1176 framepos_t _last_record_location;
1178 bool pending_locate_roll;
1179 framepos_t pending_locate_frame;
1180 bool pending_locate_flush;
1182 bool pending_auto_loop;
1186 static const PostTransportWork ProcessCannotProceedMask =
1188 PostTransportInputChange|
1190 PostTransportReverse|
1191 PostTransportCurveRealloc|
1192 PostTransportAudition|
1193 PostTransportLocate|
1195 PostTransportClearSubstate);
1197 gint _post_transport_work; /* accessed only atomic ops */
1198 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1199 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1200 void add_post_transport_work (PostTransportWork ptw);
1202 void schedule_playback_buffering_adjustment ();
1203 void schedule_capture_buffering_adjustment ();
1205 uint32_t cumulative_rf_motion;
1208 void set_rf_speed (float speed);
1209 void reset_rf_scale (framecnt_t frames_moved);
1211 Locations* _locations;
1212 void location_added (Location*);
1213 void location_removed (Location*);
1214 void locations_changed ();
1215 void _locations_changed (const Locations::LocationList&);
1217 void update_skips (Location*, bool consolidate);
1218 void update_marks (Location* loc);
1219 void update_loop (Location* loc);
1220 void consolidate_skips (Location*);
1221 void sync_locations_to_skips ();
1222 void _sync_locations_to_skips ();
1224 PBD::ScopedConnectionList skip_update_connections;
1225 bool _ignore_skips_updates;
1227 PBD::ScopedConnectionList punch_connections;
1228 void auto_punch_start_changed (Location *);
1229 void auto_punch_end_changed (Location *);
1230 void auto_punch_changed (Location *);
1232 PBD::ScopedConnectionList loop_connections;
1233 void auto_loop_changed (Location *);
1234 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1236 int ensure_engine (uint32_t desired_sample_rate);
1237 void pre_engine_init (std::string path);
1238 int post_engine_init ();
1239 int immediately_post_engine ();
1240 void remove_empty_sounds ();
1242 void setup_midi_control ();
1243 int midi_read (MIDI::Port *);
1245 void enable_record ();
1247 void increment_transport_position (framecnt_t val) {
1248 if (max_framepos - val < _transport_frame) {
1249 _transport_frame = max_framepos;
1251 _transport_frame += val;
1255 void decrement_transport_position (framecnt_t val) {
1256 if (val < _transport_frame) {
1257 _transport_frame -= val;
1259 _transport_frame = 0;
1263 void post_transport_motion ();
1264 static void *session_loader_thread (void *arg);
1268 /* SessionEventManager interface */
1270 void process_event (SessionEvent*);
1271 void set_next_event ();
1272 void cleanup_event (SessionEvent*,int);
1274 /* MIDI Machine Control */
1277 void spp_continue ();
1280 void mmc_deferred_play (MIDI::MachineControl &);
1281 void mmc_stop (MIDI::MachineControl &);
1282 void mmc_step (MIDI::MachineControl &, int);
1283 void mmc_pause (MIDI::MachineControl &);
1284 void mmc_record_pause (MIDI::MachineControl &);
1285 void mmc_record_strobe (MIDI::MachineControl &);
1286 void mmc_record_exit (MIDI::MachineControl &);
1287 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1288 void mmc_fast_forward (MIDI::MachineControl &);
1289 void mmc_rewind (MIDI::MachineControl &);
1290 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1291 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1292 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1294 struct timeval last_mmc_step;
1297 typedef boost::function<bool()> MidiTimeoutCallback;
1298 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1300 MidiTimeoutList midi_timeouts;
1301 bool mmc_step_timeout ();
1302 void send_immediate_mmc (MIDI::MachineControlCommand);
1304 MIDI::byte mtc_msg[16];
1305 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1306 MIDI::byte midi_msg[16];
1307 double outbound_mtc_timecode_frame;
1308 Timecode::Time transmitting_timecode_time;
1309 int next_quarter_frame_to_send;
1311 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1312 framecnt_t _frames_per_hour;
1313 framecnt_t _timecode_frames_per_hour;
1315 /* cache the most-recently requested time conversions. This helps when we
1316 * have multiple clocks showing the same time (e.g. the transport frame) */
1317 bool last_timecode_valid;
1318 framepos_t last_timecode_when;
1319 Timecode::Time last_timecode;
1321 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1323 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1325 LTCEncoder* ltc_encoder;
1326 ltcsnd_sample_t* ltc_enc_buf;
1328 Timecode::TimecodeFormat ltc_enc_tcformat;
1329 int32_t ltc_buf_off;
1330 int32_t ltc_buf_len;
1333 int32_t ltc_enc_byte;
1334 framepos_t ltc_enc_pos;
1336 framepos_t ltc_enc_off;
1338 framepos_t ltc_prev_cycle;
1340 framepos_t ltc_timecode_offset;
1341 bool ltc_timecode_negative_offset;
1343 LatencyRange ltc_out_latency;
1345 void ltc_tx_initialize();
1346 void ltc_tx_cleanup();
1347 void ltc_tx_reset();
1348 void ltc_tx_resync_latency();
1349 void ltc_tx_recalculate_position();
1350 void ltc_tx_parse_offset();
1351 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1353 void reset_record_status ();
1355 int no_roll (pframes_t nframes);
1356 int fail_roll (pframes_t nframes);
1358 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1359 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1361 MidiControlUI* midi_control_ui;
1363 int start_midi_thread ();
1365 void set_play_loop (bool yn, double speed);
1366 void unset_play_loop ();
1367 void overwrite_some_buffers (Track *);
1368 void flush_all_inserts ();
1369 int micro_locate (framecnt_t distance);
1370 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1371 void start_locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1372 void force_locate (framepos_t frame, bool with_roll = false);
1373 void set_track_speed (Track *, double speed);
1374 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1375 void stop_transport (bool abort = false, bool clear_state = false);
1376 void start_transport ();
1377 void realtime_stop (bool abort, bool clear_state);
1378 void realtime_locate ();
1379 void non_realtime_start_scrub ();
1380 void non_realtime_set_speed ();
1381 void non_realtime_locate ();
1382 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1383 void non_realtime_overwrite (int entry_request_count, bool& finished);
1384 void post_transport ();
1385 void engine_halted ();
1386 void xrun_recovery ();
1387 void set_track_loop (bool);
1389 /* These are synchronous and so can only be called from within the process
1393 int send_full_time_code (framepos_t, pframes_t nframes);
1394 void send_song_position_pointer (framepos_t);
1396 TempoMap *_tempo_map;
1397 void tempo_map_changed (const PBD::PropertyChange&);
1399 /* edit/mix groups */
1401 int load_route_groups (const XMLNode&, int);
1403 std::list<RouteGroup *> _route_groups;
1404 RouteGroup* _all_route_group;
1408 boost::shared_ptr<Graph> _process_graph;
1410 SerializedRCUManager<RouteList> routes;
1412 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save);
1413 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect);
1414 bool _adding_routes_in_progress;
1415 uint32_t destructive_index;
1417 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1418 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1420 void route_processors_changed (RouteProcessorChange);
1422 bool find_route_name (std::string const &, uint32_t& id, char* name, size_t name_len, bool);
1423 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1424 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1425 bool with_lock, bool connect_inputs = true,
1426 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1427 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1429 /* track numbering */
1431 void reassign_track_numbers ();
1432 uint32_t _track_number_decimals;
1436 bool solo_update_disabled;
1438 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1439 void route_mute_changed (void *src);
1440 void route_solo_changed (bool self_solo_change, void *src, boost::weak_ptr<Route>);
1441 void route_solo_isolated_changed (void *src, boost::weak_ptr<Route>);
1442 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1444 void listen_position_changed ();
1445 void solo_control_mode_changed ();
1447 /* REGION MANAGEMENT */
1449 mutable Glib::Threads::Mutex region_lock;
1451 int load_regions (const XMLNode& node);
1452 int load_compounds (const XMLNode& node);
1454 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1455 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1456 void route_group_property_changed (RouteGroup *);
1460 mutable Glib::Threads::Mutex source_lock;
1463 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1466 void reset_write_sources (bool mark_write_complete, bool force = false);
1471 int load_sources (const XMLNode& node);
1472 XMLNode& get_sources_as_xml ();
1474 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1478 void remove_playlist (boost::weak_ptr<Playlist>);
1479 void track_playlist_changed (boost::weak_ptr<Track>);
1480 void playlist_region_added (boost::weak_ptr<Region>);
1481 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1482 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1484 /* CURVES and AUTOMATION LISTS */
1485 std::map<PBD::ID, AutomationList*> automation_lists;
1487 /* DEFAULT FADE CURVES */
1489 float default_fade_steepness;
1490 float default_fade_msecs;
1494 boost::shared_ptr<Auditioner> auditioner;
1495 void set_audition (boost::shared_ptr<Region>);
1496 void non_realtime_set_audition ();
1497 boost::shared_ptr<Region> pending_audition_region;
1503 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1505 /* INSERT AND SEND MANAGEMENT */
1507 boost::dynamic_bitset<uint32_t> send_bitset;
1508 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1509 boost::dynamic_bitset<uint32_t> return_bitset;
1510 boost::dynamic_bitset<uint32_t> insert_bitset;
1514 struct space_and_path {
1515 uint32_t blocks; ///< 4kB blocks
1516 bool blocks_unknown; ///< true if blocks is unknown
1521 , blocks_unknown (true)
1525 struct space_and_path_ascending_cmp {
1526 bool operator() (space_and_path a, space_and_path b) {
1527 if (a.blocks_unknown != b.blocks_unknown) {
1528 return !a.blocks_unknown;
1530 return a.blocks > b.blocks;
1534 void setup_raid_path (std::string path);
1536 std::vector<space_and_path> session_dirs;
1537 std::vector<space_and_path>::iterator last_rr_session_dir;
1538 uint32_t _total_free_4k_blocks;
1539 /** If this is true, _total_free_4k_blocks is not definite,
1540 as one or more of the session directories' filesystems
1541 could not report free space.
1543 bool _total_free_4k_blocks_uncertain;
1544 Glib::Threads::Mutex space_lock;
1546 bool no_questions_about_missing_files;
1548 std::string get_best_session_directory_for_new_audio ();
1550 mutable gint _playback_load;
1551 mutable gint _capture_load;
1555 SerializedRCUManager<BundleList> _bundles;
1556 XMLNode* _bundle_xml_node;
1557 int load_bundles (XMLNode const &);
1559 UndoHistory _history;
1560 /** current undo transaction, or 0 */
1561 UndoTransaction* _current_trans;
1562 /** GQuarks to describe the reversible commands that are currently in progress.
1563 * These may be nested, in which case more recently-started commands are toward
1564 * the front of the list.
1566 std::list<GQuark> _current_trans_quarks;
1568 int backend_sync_callback (TransportState, framepos_t);
1570 void process_rtop (SessionEvent*);
1572 void update_latency (bool playback);
1574 XMLNode& state(bool);
1577 typedef std::list<Click*> Clicks;
1580 boost::shared_ptr<IO> _click_io;
1581 boost::shared_ptr<Amp> _click_gain;
1583 Sample* click_emphasis_data;
1584 framecnt_t click_length;
1585 framecnt_t click_emphasis_length;
1586 mutable Glib::Threads::RWLock click_lock;
1588 static const Sample default_click[];
1589 static const framecnt_t default_click_length;
1590 static const Sample default_click_emphasis[];
1591 static const framecnt_t default_click_emphasis_length;
1594 framepos_t _clicks_cleared;
1595 void setup_click_sounds (int which);
1596 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1597 void clear_clicks ();
1598 void click (framepos_t start, framecnt_t nframes);
1600 std::vector<Route*> master_outs;
1602 /* range playback */
1604 std::list<AudioRange> current_audio_range;
1606 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1607 void unset_play_range ();
1612 boost::shared_ptr<Route> _master_out;
1613 boost::shared_ptr<Route> _monitor_out;
1615 void auto_connect_master_bus ();
1617 /* Windows VST support */
1619 long _windows_vst_callback (
1628 int find_all_sources (std::string path, std::set<std::string>& result);
1629 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1631 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1632 Glib::Threads::Mutex controllables_lock;
1633 Controllables controllables;
1635 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1637 void reset_native_file_format();
1638 bool first_file_data_format_reset;
1639 bool first_file_header_format_reset;
1641 void config_changed (std::string, bool);
1643 XMLNode& get_control_protocol_state ();
1645 void set_history_depth (uint32_t depth);
1647 static bool _disable_all_loaded_plugins;
1649 mutable bool have_looped; ///< Used in ::audible_frame(*)
1651 void update_have_rec_enabled_track ();
1652 gint _have_rec_enabled_track;
1654 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1656 /* realtime "apply to set of routes" operations */
1657 template<typename T> SessionEvent*
1658 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, bool group_override,
1659 void (Session::*method) (boost::shared_ptr<RouteList>, T, bool)) {
1660 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1661 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1662 ev->rt_return = after;
1663 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1668 void rt_cancel_solo_after_disconnect (boost::shared_ptr<RouteList>, bool upstream, bool /* ignored*/ );
1669 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1670 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1671 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1672 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1673 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1674 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1675 void rt_set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, bool group_override);
1677 /** temporary list of Diskstreams used only during load of 2.X sessions */
1678 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1680 void add_session_range_location (framepos_t, framepos_t);
1682 void setup_midi_machine_control ();
1684 void step_edit_status_change (bool);
1685 uint32_t _step_editors;
1687 /** true if timecode transmission by the transport is suspended, otherwise false */
1688 mutable gint _suspend_timecode_transmission;
1690 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1692 void start_time_changed (framepos_t);
1693 void end_time_changed (framepos_t);
1695 void set_track_monitor_input_status (bool);
1696 framepos_t compute_stop_limit () const;
1698 boost::shared_ptr<Speakers> _speakers;
1699 void load_nested_sources (const XMLNode& node);
1701 /** The directed graph of routes that is currently being used for audio processing
1702 and solo/mute computations.
1704 GraphEdges _current_route_graph;
1706 uint32_t next_control_id () const;
1707 int32_t _order_hint;
1708 bool ignore_route_processor_changes;
1710 MidiClockTicker* midi_clock;
1712 boost::shared_ptr<IO> _ltc_input;
1713 boost::shared_ptr<IO> _ltc_output;
1715 void reconnect_ltc_input ();
1716 void reconnect_ltc_output ();
1718 /* Scene Changing */
1719 SceneChanger* _scene_changer;
1721 /* persistent, non-track related MIDI ports */
1722 MidiPortManager* _midi_ports;
1723 MIDI::MachineControl* _mmc;
1726 void setup_click ();
1727 void setup_click_state (const XMLNode*);
1728 void setup_bundles ();
1730 void save_as_bring_callback (uint32_t, uint32_t, std::string);
1732 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
1736 } // namespace ARDOUR
1738 #endif /* __ardour_session_h__ */