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"
34 #include <boost/dynamic_bitset.hpp>
35 #include <boost/scoped_ptr.hpp>
36 #include <boost/weak_ptr.hpp>
37 #include <boost/utility.hpp>
39 #include <glibmm/threads.h>
43 #include "pbd/error.h"
44 #include "pbd/event_loop.h"
46 #include "pbd/reallocpool.h"
47 #include "pbd/statefuldestructible.h"
48 #include "pbd/signals.h"
51 #include "lua/luastate.h"
53 #include "evoral/Range.hpp"
55 #include "midi++/types.h"
56 #include "midi++/mmc.h"
58 #include "timecode/time.h"
60 #include "ardour/ardour.h"
61 #include "ardour/chan_count.h"
62 #include "ardour/delivery.h"
63 #include "ardour/interthread_info.h"
64 #include "ardour/luascripting.h"
65 #include "ardour/location.h"
66 #include "ardour/monitor_processor.h"
67 #include "ardour/presentation_info.h"
68 #include "ardour/rc_configuration.h"
69 #include "ardour/session_configuration.h"
70 #include "ardour/session_event.h"
71 #include "ardour/interpolation.h"
72 #include "ardour/plugin.h"
73 #include "ardour/presentation_info.h"
74 #include "ardour/route.h"
75 #include "ardour/route_graph.h"
81 typedef struct _AEffect AEffect;
105 class AudioFileSource;
110 class AutomationList;
116 class ControllableDescriptor;
124 class MidiClockTicker;
126 class MidiPortManager;
146 class SessionDirectory;
147 class SessionMetadata;
148 class SessionPlaylists;
155 class WindowsVSTPlugin;
157 extern void setup_enum_writer ();
159 class LIBARDOUR_API SessionException: public std::exception {
161 explicit SessionException(const std::string msg) : _message(msg) {}
162 virtual ~SessionException() throw() {}
164 virtual const char* what() const throw() { return _message.c_str(); }
167 std::string _message;
170 /** Ardour Session */
171 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
175 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
176 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
177 StopPendingCapture = 0x4,
178 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
179 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
180 PendingLocate = 0x20,
190 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
191 the bus profile can be null if no master out bus is required.
194 Session (AudioEngine&,
195 const std::string& fullpath,
196 const std::string& snapshot_name,
197 BusProfile* bus_profile = 0,
198 std::string mix_template = "");
202 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format);
203 static std::string get_snapshot_from_instant (const std::string& session_dir);
205 /** a monotonic counter used for naming user-visible things uniquely
206 * (curently the sidechain port).
207 * Use sparingly to keep the numbers low, prefer PBD::ID for all
208 * internal, not user-visible IDs */
209 static unsigned int next_name_id ();
211 std::string path() const { return _path; }
212 std::string name() const { return _name; }
213 std::string snap_name() const { return _current_snapshot_name; }
214 std::string raid_path () const;
215 bool path_is_within_session (const std::string&);
217 bool writable() const { return _writable; }
220 bool dirty() const { return _state_of_the_state & Dirty; }
221 void set_deletion_in_progress ();
222 void clear_deletion_in_progress ();
223 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
224 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
225 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
226 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
227 bool loading () const { return _state_of_the_state & Loading; }
229 PBD::Signal0<void> DirtyChanged;
231 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
233 static PBD::Signal1<void,std::string> Dialog;
235 PBD::Signal0<void> BatchUpdateStart;
236 PBD::Signal0<void> BatchUpdateEnd;
238 int ensure_subdirs ();
240 std::string automation_dir () const; ///< Automation data
241 std::string analysis_dir () const; ///< Analysis data
242 std::string plugins_dir () const; ///< Plugin state
243 std::string externals_dir () const; ///< Links to external files
245 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
247 bool audio_source_name_is_unique (const std::string& name);
248 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);
249 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
250 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
251 std::string new_midi_source_path (const std::string&);
252 /** create a new track or bus from a template (XML path)
253 * @param how_many how many tracks or busses to create
254 * @param template_path path to xml template file
255 * @param name name (prefix) of the route to create
256 * @param pd Playlist disposition
257 * @return list of newly created routes
259 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, const std::string& template_path, const std::string& name, PlaylistDisposition pd = NewPlaylist);
260 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
261 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path, uint32_t channels);
263 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
265 void process (pframes_t nframes);
267 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
268 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
269 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
270 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
271 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
273 bool have_rec_enabled_track () const;
274 bool have_rec_disabled_track () const;
276 bool have_captured() const { return _have_captured; }
278 void refill_all_track_buffers ();
279 Butler* butler() { return _butler; }
280 void butler_transport_work ();
282 void refresh_disk_space ();
284 int load_diskstreams_2X (XMLNode const &, int);
286 int load_routes (const XMLNode&, int);
287 boost::shared_ptr<RouteList> get_routes() const {
288 return routes.reader ();
291 /* because the set of Stripables consists of objects managed
292 * independently, in multiple containers within the Session (or objects
293 * owned by the session), we fill out a list in-place rather than
294 * return a pointer to a copy of the (RCU) managed list, as happens
298 void get_stripables (StripableList&) const;
299 boost::shared_ptr<RouteList> get_tracks() const;
300 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
301 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
303 uint32_t nroutes() const { return routes.reader()->size(); }
304 uint32_t ntracks () const;
305 uint32_t nbusses () const;
307 boost::shared_ptr<BundleList> bundles () {
308 return _bundles.reader ();
311 struct LIBARDOUR_API RoutePublicOrderSorter {
312 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
315 void notify_presentation_info_change ();
317 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
318 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
319 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
321 static char session_name_is_legal (const std::string&);
322 bool io_name_is_legal (const std::string&) const;
323 boost::shared_ptr<Route> route_by_name (std::string) const;
324 boost::shared_ptr<Route> route_by_id (PBD::ID) const;
325 boost::shared_ptr<Stripable> get_remote_nth_stripable (PresentationInfo::order_t n, PresentationInfo::Flag) const;
326 boost::shared_ptr<Route> get_remote_nth_route (PresentationInfo::order_t n) const;
327 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt) const;
328 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID) const;
329 void routes_using_input_from (const std::string& str, RouteList& rl);
331 bool route_name_unique (std::string) const;
332 bool route_name_internal (std::string) const;
334 uint32_t track_number_decimals () const {
335 return _track_number_decimals;
338 bool get_record_enabled() const {
339 return (record_status () >= Enabled);
342 RecordState record_status() const {
343 return (RecordState) g_atomic_int_get (&_record_status);
346 bool actively_recording () const {
347 return record_status() == Recording;
350 bool record_enabling_legal () const;
351 void maybe_enable_record ();
352 void disable_record (bool rt_context, bool force = false);
353 void step_back_from_record ();
355 void set_all_tracks_record_enabled(bool);
357 void maybe_write_autosave ();
359 /* Emitted when all i/o connections are complete */
361 PBD::Signal0<void> IOConnectionsComplete;
363 /* Timecode status signals */
364 PBD::Signal1<void, bool> MTCSyncStateChanged;
365 PBD::Signal1<void, bool> LTCSyncStateChanged;
367 /* Record status signals */
369 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
370 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
371 from the previous signal and session state.
373 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
375 /* Emited when session is loaded */
376 PBD::Signal0<void> SessionLoaded;
378 /* Transport mechanism signals */
380 /** Emitted on the following changes in transport state:
381 * - stop (from the butler thread)
382 * - change in whether or not we are looping (from the process thread)
383 * - change in the play range (from the process thread)
384 * - start (from the process thread)
387 PBD::Signal0<void> TransportStateChange;
389 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
390 PBD::Signal1<void,framepos_t> Xrun;
391 PBD::Signal0<void> TransportLooped;
393 /** emitted when a locate has occurred */
394 PBD::Signal0<void> Located;
396 PBD::Signal1<void,RouteList&> RouteAdded;
397 /** Emitted when a property of one of our route groups changes.
398 * The parameter is the RouteGroup that has changed.
400 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
401 /** Emitted when a route is added to one of our route groups.
402 * First parameter is the RouteGroup, second is the route.
404 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
405 /** Emitted when a route is removed from one of our route groups.
406 * First parameter is the RouteGroup, second is the route.
408 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
410 /* Step Editing status changed */
411 PBD::Signal1<void,bool> StepEditStatusChange;
413 /* Timecode state signals */
414 PBD::Signal0<void> MtcOrLtcInputPortChanged;
416 void queue_event (SessionEvent*);
418 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
419 void request_bounded_roll (framepos_t start, framepos_t end);
420 void request_stop (bool abort = false, bool clear_state = false);
421 void request_locate (framepos_t frame, bool with_roll = false);
423 void request_play_loop (bool yn, bool leave_rolling = false);
424 bool get_play_loop () const { return play_loop; }
426 framepos_t last_transport_start () const { return _last_roll_location; }
428 void goto_start (bool and_roll = false);
429 void use_rf_shuttle_speed ();
430 void allow_auto_play (bool yn);
431 void request_transport_speed (double speed, bool as_default = true);
432 void request_transport_speed_nonzero (double, bool as_default = true);
433 void request_overwrite_buffer (Track *);
434 void adjust_playback_buffering();
435 void adjust_capture_buffering();
436 void request_track_speed (Track *, double speed);
437 void request_input_change_handling ();
439 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
440 bool declick_out_pending() const { return static_cast<bool>(transport_sub_state&(PendingDeclickOut)); }
441 bool transport_locked () const;
445 framepos_t current_end_frame () const;
446 framepos_t current_start_frame () const;
447 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
448 framecnt_t frame_rate () const { return _current_frame_rate; }
449 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
450 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
451 framecnt_t frames_per_hour () const { return _frames_per_hour; }
453 double samples_per_timecode_frame() const { return _samples_per_timecode_frame; }
454 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
456 MIDI::byte get_mtc_timecode_bits() const {
457 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
460 double timecode_frames_per_second() const;
461 bool timecode_drop_frames() const;
465 Locations *locations() { return _locations; }
467 PBD::Signal1<void,Location*> auto_loop_location_changed;
468 PBD::Signal1<void,Location*> auto_punch_location_changed;
469 PBD::Signal0<void> locations_modified;
471 void set_auto_punch_location (Location *);
472 void set_auto_loop_location (Location *);
473 void set_session_extents (framepos_t start, framepos_t end);
474 void set_end_is_free (bool);
475 int location_name(std::string& result, std::string base = std::string(""));
477 pframes_t get_block_size() const { return current_block_size; }
478 framecnt_t worst_output_latency () const { return _worst_output_latency; }
479 framecnt_t worst_input_latency () const { return _worst_input_latency; }
480 framecnt_t worst_track_latency () const { return _worst_track_latency; }
481 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
484 std::string new_parent_folder; /* parent folder where new session folder will be created */
485 std::string new_name; /* name of newly saved session */
486 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
487 bool include_media; /* true if the newly saved session should contain references to media */
488 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
489 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
491 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
493 /* emitted as we make progress. 3 arguments passed to signal
496 * 1: percentage complete measured as a fraction (0-1.0) of
497 * total data copying done.
498 * 2: number of files copied so far
499 * 3: total number of files to copy
501 * Handler should return true for save-as to continue, or false
502 * to stop (and remove all evidence of partial save-as).
504 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
506 /* if save_as() returns non-zero, this string will indicate the reason why.
508 std::string failure_message;
511 int save_as (SaveAs&);
513 * @param snapshot_name name of the session (use an empty string for the current name)
514 * @param pending save a 'recovery', not full state (default: false)
515 * @param switch_to_snapshot switch to given snapshot after saving (default: false)
516 * @param template_only save a session template (default: false)
517 * @return zero on success
519 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
527 int archive_session (const std::string&, const std::string&, ArchiveEncode compress_audio = FLAC_16BIT, bool only_used_sources = false, Progress* p = 0);
529 int restore_state (std::string snapshot_name);
530 int save_template (std::string template_name, bool replace_existing = false);
531 int save_history (std::string snapshot_name = "");
532 int restore_history (std::string snapshot_name);
533 void remove_state (std::string snapshot_name);
534 void rename_state (std::string old_name, std::string new_name);
535 void remove_pending_capture_state ();
536 int rename (const std::string&);
537 bool get_nsm_state () const { return _under_nsm_control; }
538 void set_nsm_state (bool state) { _under_nsm_control = state; }
539 bool save_default_options ();
541 PBD::Signal1<void,std::string> StateSaved;
542 PBD::Signal0<void> StateReady;
544 /* emitted when session needs to be saved due to some internal
545 * event or condition (i.e. not in response to a user request).
547 * Only one object should
548 * connect to this signal and take responsibility.
550 * Argument is the snapshot name to use when saving.
552 PBD::Signal1<void,std::string> SaveSessionRequested;
554 /* emitted during a session save to allow other entities to add state, via
555 * extra XML, to the session state
557 PBD::Signal0<void> SessionSaveUnderway;
559 std::vector<std::string> possible_states() const;
560 static std::vector<std::string> possible_states (std::string path);
562 XMLNode& get_state();
563 int set_state(const XMLNode& node, int version); // not idempotent
564 XMLNode& get_template();
566 /// The instant xml file is written to the session directory
567 void add_instant_xml (XMLNode&, bool write_to_config = true);
568 XMLNode* instant_xml (const std::string& str);
570 enum StateOfTheState {
575 InitialConnecting = 0x8,
581 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
583 class StateProtector {
585 StateProtector (Session* s) : _session (s) {
586 g_atomic_int_inc (&s->_suspend_save);
589 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
590 while (_session->_save_queued) {
591 _session->_save_queued = false;
592 _session->save_state ("");
600 class ProcessorChangeBlocker {
602 ProcessorChangeBlocker (Session* s, bool rc = true)
604 , _reconfigure_on_delete (rc)
606 g_atomic_int_inc (&s->_ignore_route_processor_changes);
608 ~ProcessorChangeBlocker () {
609 if (g_atomic_int_dec_and_test (&_session->_ignore_route_processor_changes)) {
610 if (_reconfigure_on_delete) {
611 _session->route_processors_changed (RouteProcessorChange ());
617 bool _reconfigure_on_delete;
620 RouteGroup* new_route_group (const std::string&);
621 void add_route_group (RouteGroup *);
622 void remove_route_group (RouteGroup* rg) { if (rg) remove_route_group (*rg); }
623 void remove_route_group (RouteGroup&);
624 void reorder_route_groups (std::list<RouteGroup*>);
626 RouteGroup* route_group_by_name (std::string);
627 RouteGroup& all_route_group() const;
629 PBD::Signal1<void,RouteGroup*> route_group_added;
630 PBD::Signal0<void> route_group_removed;
631 PBD::Signal0<void> route_groups_reordered;
633 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
634 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
639 std::list<RouteGroup*> const & route_groups () const {
640 return _route_groups;
643 /* fundamental operations. duh. */
645 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
648 RouteGroup* route_group,
650 std::string name_template,
651 PresentationInfo::order_t order,
652 TrackMode mode = Normal
655 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
656 const ChanCount& input, const ChanCount& output,
657 boost::shared_ptr<PluginInfo> instrument,
658 Plugin::PresetRecord* pset,
659 RouteGroup* route_group, uint32_t how_many, std::string name_template,
660 PresentationInfo::order_t,
661 TrackMode mode = Normal
664 RouteList new_audio_route (int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template, PresentationInfo::Flag, PresentationInfo::order_t);
665 RouteList new_midi_route (RouteGroup* route_group, uint32_t how_many, std::string name_template, boost::shared_ptr<PluginInfo> instrument, Plugin::PresetRecord*, PresentationInfo::Flag, PresentationInfo::order_t);
667 void remove_routes (boost::shared_ptr<RouteList>);
668 void remove_route (boost::shared_ptr<Route>);
670 void resort_routes ();
671 void resort_routes_using (boost::shared_ptr<RouteList>);
673 AudioEngine & engine() { return _engine; }
674 AudioEngine const & engine () const { return _engine; }
676 static std::string default_track_name_pattern (DataType);
680 framepos_t transport_frame () const {return _transport_frame; }
681 framepos_t record_location () const {return _last_record_location; }
682 framepos_t audible_frame () const;
683 framepos_t requested_return_frame() const { return _requested_return_frame; }
684 void set_requested_return_frame(framepos_t return_to);
698 void sync_time_vars();
700 void bbt_time (framepos_t when, Timecode::BBT_Time&);
701 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
702 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
703 void timecode_time (Timecode::Time &);
704 void timecode_time (framepos_t when, Timecode::Time&);
705 void timecode_time_subframes (framepos_t when, Timecode::Time&);
707 void timecode_duration (framecnt_t, Timecode::Time&) const;
708 void timecode_duration_string (char *, size_t len, framecnt_t) const;
710 framecnt_t convert_to_frames (AnyTime const & position);
711 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
713 static PBD::Signal1<void, framepos_t> StartTimeChanged;
714 static PBD::Signal1<void, framepos_t> EndTimeChanged;
716 void request_sync_source (Slave*);
717 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
718 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
719 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
721 double transport_speed() const { return _transport_speed; }
722 bool transport_stopped() const { return _transport_speed == 0.0; }
723 bool transport_rolling() const { return _transport_speed != 0.0; }
725 bool silent () { return _silent; }
727 TempoMap& tempo_map() { return *_tempo_map; }
728 const TempoMap& tempo_map() const { return *_tempo_map; }
730 unsigned int get_xrun_count () const {return _xrun_count; }
731 void reset_xrun_count () {_xrun_count = 0; }
735 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
737 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
738 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
739 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
741 /* source management */
743 void import_files (ImportStatus&);
744 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
745 std::string build_tmp_convert_name (std::string file);
747 boost::shared_ptr<ExportHandler> get_export_handler ();
748 boost::shared_ptr<ExportStatus> get_export_status ();
750 int start_audio_export (framepos_t position, bool realtime = false, bool region_export = false, bool comensate_master_latency = false);
752 PBD::Signal1<int, framecnt_t> ProcessExport;
753 static PBD::Signal2<void,std::string, std::string> Exported;
755 void add_source (boost::shared_ptr<Source>);
756 void remove_source (boost::weak_ptr<Source>);
758 void cleanup_regions();
759 bool can_cleanup_peakfiles () const;
760 int cleanup_peakfiles ();
761 int cleanup_sources (CleanupReport&);
762 int cleanup_trash_sources (CleanupReport&);
764 int destroy_sources (std::list<boost::shared_ptr<Source> >);
766 int remove_last_capture ();
768 /** handlers should return 0 for "everything OK", and any other value for
769 * "cannot setup audioengine".
771 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
773 /** handlers should return -1 for "stop cleanup",
774 0 for "yes, delete this playlist",
775 1 for "no, don't delete this playlist".
777 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
779 /** handlers should return 0 for "ignore the rate mismatch",
780 !0 for "do not use this session"
782 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
784 /** non interactive message */
785 static PBD::Signal2<void, framecnt_t, framecnt_t> NotifyAboutSampleRateMismatch;
787 /** handlers should return !0 for use pending state, 0 for ignore it.
789 static PBD::Signal0<int> AskAboutPendingState;
791 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
792 size_t, std::string const &, uint32_t, bool destructive);
794 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
795 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
797 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
798 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
799 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
800 uint32_t count_sources_by_origin (const std::string&);
802 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
804 /* Curves and AutomationLists (TODO when they go away) */
805 void add_automation_list(AutomationList*);
809 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
810 void audition_playlist ();
811 void audition_region (boost::shared_ptr<Region>);
812 void cancel_audition ();
813 bool is_auditioning () const;
815 PBD::Signal1<void,bool> AuditionActive;
818 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
819 void unregister_lua_function (const std::string& name);
820 std::vector<std::string> registered_lua_functions ();
821 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
822 void scripts_changed (); // called from lua, updates _n_lua_scripts
824 /* flattening stuff */
826 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
827 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
828 boost::shared_ptr<Processor> endpoint,
829 bool include_endpoint, bool for_export, bool for_freeze);
830 int freeze_all (InterThreadInfo&);
832 /* session-wide solo/mute/rec-enable */
834 bool soloing() const { return _non_soloed_outs_muted; }
835 bool listening() const { return _listen_cnt > 0; }
836 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
837 void cancel_all_solo ();
839 static const SessionEvent::RTeventCallback rt_cleanup;
841 void clear_all_solo_state (boost::shared_ptr<RouteList>);
843 /* Control-based methods */
845 void set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition);
846 void set_control (boost::shared_ptr<AutomationControl>, double val, PBD::Controllable::GroupControlDisposition);
848 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
850 PBD::Signal1<void,bool> SoloActive;
851 PBD::Signal0<void> SoloChanged;
852 PBD::Signal0<void> IsolatedChanged;
853 PBD::Signal0<void> MonitorChanged;
855 PBD::Signal0<void> session_routes_reconnected;
857 /* monitor/master out */
859 void add_monitor_section ();
860 void reset_monitor_section ();
861 void remove_monitor_section ();
862 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
864 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
865 boost::shared_ptr<Route> master_out() const { return _master_out; }
867 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
868 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
869 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
870 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
871 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
872 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
873 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
875 static void set_disable_all_loaded_plugins (bool yn) {
876 _disable_all_loaded_plugins = yn;
878 static bool get_disable_all_loaded_plugins() {
879 return _disable_all_loaded_plugins;
881 static void set_bypass_all_loaded_plugins (bool yn) {
882 _bypass_all_loaded_plugins = yn;
884 static bool get_bypass_all_loaded_plugins() {
885 return _bypass_all_loaded_plugins;
888 uint32_t next_send_id();
889 uint32_t next_aux_send_id();
890 uint32_t next_return_id();
891 uint32_t next_insert_id();
892 void mark_send_id (uint32_t);
893 void mark_aux_send_id (uint32_t);
894 void mark_return_id (uint32_t);
895 void mark_insert_id (uint32_t);
896 void unmark_send_id (uint32_t);
897 void unmark_aux_send_id (uint32_t);
898 void unmark_return_id (uint32_t);
899 void unmark_insert_id (uint32_t);
901 /* s/w "RAID" management */
903 boost::optional<framecnt_t> available_capture_duration();
907 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
908 void remove_bundle (boost::shared_ptr<Bundle>);
909 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
911 PBD::Signal0<void> BundleAddedOrRemoved;
915 /* History (for editors, mixers, UIs etc.) */
917 /** Undo some transactions.
918 * @param n Number of transactions to undo.
920 void undo (uint32_t n);
921 /** Redo some transactions.
922 * @param n Number of transactions to undo.
924 void redo (uint32_t n);
926 UndoHistory& history() { return _history; }
928 uint32_t undo_depth() const { return _history.undo_depth(); }
929 uint32_t redo_depth() const { return _history.redo_depth(); }
930 std::string next_undo() const { return _history.next_undo(); }
931 std::string next_redo() const { return _history.next_redo(); }
933 /** begin collecting undo information
935 * This call must always be followed by either
936 * begin_reversible_command() or commit_reversible_command()
938 * @param cmd_name human readable name for the undo operation
940 void begin_reversible_command (const std::string& cmd_name);
941 void begin_reversible_command (GQuark);
942 /** abort an open undo command
943 * This must only be called after begin_reversible_command ()
945 void abort_reversible_command ();
946 /** finalize an undo command and commit pending transactions
948 * This must only be called after begin_reversible_command ()
949 * @param cmd (additional) command to add
951 void commit_reversible_command (Command* cmd = 0);
953 void add_command (Command *const cmd);
955 /** create an StatefulDiffCommand from the given object and add it to the stack.
957 * This function must only be called after begin_reversible_command.
958 * Failing to do so may lead to a crash.
960 * @param sfd the object to diff
961 * @returns the allocated StatefulDiffCommand (already added via add_command)
963 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
965 /** @return The list of operations that are currently in progress */
966 std::list<GQuark> const & current_operations () {
967 return _current_trans_quarks;
970 bool operation_in_progress (GQuark) const;
972 void add_commands (std::vector<Command*> const & cmds);
974 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
976 // these commands are implemented in libs/ardour/session_command.cc
977 Command* memento_command_factory(XMLNode* n);
978 Command* stateful_diff_command_factory (XMLNode *);
979 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
983 boost::shared_ptr<IO> click_io() { return _click_io; }
984 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
986 /* disk, buffer loads */
988 uint32_t playback_load ();
989 uint32_t capture_load ();
993 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
994 void request_cancel_play_range ();
995 bool get_play_range () const { return _play_range; }
997 void maybe_update_session_range (framepos_t, framepos_t);
999 /* temporary hacks to allow selection to be pushed from GUI into backend.
1000 Whenever we move the selection object into libardour, these will go away.
1002 void set_range_selection (framepos_t start, framepos_t end);
1003 void set_object_selection (framepos_t start, framepos_t end);
1004 void clear_range_selection ();
1005 void clear_object_selection ();
1007 /* buffers for gain and pan */
1009 gain_t* gain_automation_buffer () const;
1010 gain_t* trim_automation_buffer () const;
1011 gain_t* send_gain_automation_buffer () const;
1012 pan_t** pan_automation_buffer () const;
1014 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
1018 static int vst_current_loading_id;
1019 static const char* vst_can_do_strings[];
1020 static const int vst_can_do_string_count;
1022 static intptr_t vst_callback (
1031 static PBD::Signal0<void> SendFeedback;
1035 boost::shared_ptr<Speakers> get_speakers ();
1039 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
1041 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
1042 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const ARDOUR::ControllableDescriptor&);
1044 void add_controllable (boost::shared_ptr<PBD::Controllable>);
1045 void remove_controllable (PBD::Controllable*);
1047 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
1049 SessionConfiguration config;
1051 SessionConfiguration* cfg () { return &config; }
1053 bool exporting () const {
1057 bool bounce_processing() const {
1058 return _bounce_processing_active;
1061 /* this is a private enum, but setup_enum_writer() needs it,
1062 and i can't find a way to give that function
1063 friend access. sigh.
1066 enum PostTransportWork {
1067 PostTransportStop = 0x1,
1068 PostTransportDuration = 0x2,
1069 PostTransportLocate = 0x4,
1070 PostTransportRoll = 0x8,
1071 PostTransportAbort = 0x10,
1072 PostTransportOverWrite = 0x20,
1073 PostTransportSpeed = 0x40,
1074 PostTransportAudition = 0x80,
1075 PostTransportReverse = 0x100,
1076 PostTransportInputChange = 0x200,
1077 PostTransportCurveRealloc = 0x400,
1078 PostTransportClearSubstate = 0x800,
1079 PostTransportAdjustPlaybackBuffering = 0x1000,
1080 PostTransportAdjustCaptureBuffering = 0x2000
1089 SlaveState slave_state() const { return _slave_state; }
1090 Slave* slave() const { return _slave; }
1092 boost::shared_ptr<SessionPlaylists> playlists;
1094 void send_mmc_locate (framepos_t);
1095 void queue_full_time_code () { _send_timecode_update = true; }
1096 void queue_song_position_pointer () { /* currently does nothing */ }
1098 bool step_editing() const { return (_step_editors > 0); }
1100 void request_suspend_timecode_transmission ();
1101 void request_resume_timecode_transmission ();
1102 bool timecode_transmission_suspended () const;
1104 std::vector<std::string> source_search_path(DataType) const;
1105 void ensure_search_path_includes (const std::string& path, DataType type);
1106 void remove_dir_from_search_path (const std::string& path, DataType type);
1108 std::list<std::string> unknown_processors () const;
1110 /** Emitted when a feedback cycle has been detected within Ardour's signal
1111 processing path. Until it is fixed (by the user) some (unspecified)
1112 routes will not be run.
1114 static PBD::Signal0<void> FeedbackDetected;
1116 /** Emitted when a graph sort has successfully completed, which means
1117 that it has no feedback cycles.
1119 static PBD::Signal0<void> SuccessfulGraphSort;
1121 /* handlers can return an integer value:
1122 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1123 to modify the search path and we should try to find it again.
1124 1: quit entire session load
1125 2: as 0, but don't ask about other missing files
1126 3: don't ask about other missing files, and just mark this one missing
1127 -1: just mark this one missing
1128 any other value: as -1
1130 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1132 /** Emitted when the session wants Ardour to quit */
1133 static PBD::Signal0<void> Quit;
1135 /** Emitted when Ardour is asked to load a session in an older session
1136 * format, and makes a backup copy.
1138 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1140 SceneChanger* scene_changer() const { return _scene_changer; }
1142 /* asynchronous MIDI control ports */
1144 boost::shared_ptr<Port> midi_input_port () const;
1145 boost::shared_ptr<Port> midi_output_port () const;
1146 boost::shared_ptr<Port> mmc_output_port () const;
1147 boost::shared_ptr<Port> mmc_input_port () const;
1148 boost::shared_ptr<Port> scene_input_port () const;
1149 boost::shared_ptr<Port> scene_output_port () const;
1151 /* synchronous MIDI ports used for synchronization */
1153 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1154 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1155 boost::shared_ptr<MidiPort> mtc_output_port () const;
1156 boost::shared_ptr<MidiPort> mtc_input_port () const;
1157 boost::shared_ptr<Port> ltc_input_port() const;
1158 boost::shared_ptr<Port> ltc_output_port() const;
1160 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1161 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1163 MIDI::MachineControl& mmc() { return *_mmc; }
1165 void reconnect_midi_scene_ports (bool);
1166 void reconnect_mtc_ports ();
1167 void reconnect_mmc_ports (bool);
1169 void reconnect_ltc_input ();
1170 void reconnect_ltc_output ();
1172 VCAManager& vca_manager() { return *_vca_manager; }
1174 void auto_connect_thread_wakeup ();
1178 friend class AudioEngine;
1179 void set_block_size (pframes_t nframes);
1180 void set_frame_rate (framecnt_t nframes);
1181 #ifdef USE_TRACKS_CODE_FEATURES
1182 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1187 void schedule_curve_reallocation ();
1188 void update_latency_compensation (bool force = false);
1191 int create (const std::string& mix_template, BusProfile*);
1194 static guint _name_id_counter;
1195 static void init_name_id_counter (guint n);
1196 static unsigned int name_id_counter ();
1198 /* stuff used in process() should be close together to
1202 typedef void (Session::*process_function_type)(pframes_t);
1204 AudioEngine& _engine;
1205 mutable gint processing_prohibited;
1206 process_function_type process_function;
1207 process_function_type last_process_function;
1208 bool _bounce_processing_active;
1209 bool waiting_for_sync_offset;
1210 framecnt_t _base_frame_rate; // sample-rate of the session at creation time, "native" SR
1211 framecnt_t _nominal_frame_rate; // overridden by audioengine setting
1212 framecnt_t _current_frame_rate; // this includes video pullup offset
1213 int transport_sub_state;
1214 mutable gint _record_status;
1215 framepos_t _transport_frame;
1216 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1217 bool _session_range_end_is_free;
1221 // varispeed playback
1222 double _transport_speed;
1223 double _default_transport_speed;
1224 double _last_transport_speed;
1225 double _signalled_varispeed;
1226 double _target_transport_speed;
1227 CubicInterpolation interpolation;
1229 bool auto_play_legal;
1230 framepos_t _last_slave_transport_frame;
1231 framecnt_t maximum_output_latency;
1232 framepos_t _requested_return_frame;
1233 pframes_t current_block_size;
1234 framecnt_t _worst_output_latency;
1235 framecnt_t _worst_input_latency;
1236 framecnt_t _worst_track_latency;
1237 bool _have_captured;
1238 bool _non_soloed_outs_muted;
1240 uint32_t _listen_cnt;
1241 uint32_t _solo_isolated_cnt;
1244 bool _under_nsm_control;
1245 unsigned int _xrun_count;
1247 void mtc_status_changed (bool);
1248 PBD::ScopedConnection mtc_status_connection;
1249 void ltc_status_changed (bool);
1250 PBD::ScopedConnection ltc_status_connection;
1252 void initialize_latencies ();
1253 void set_worst_io_latencies ();
1254 void set_worst_playback_latency ();
1255 void set_worst_capture_latency ();
1256 void set_worst_io_latencies_x (IOChange, void *) {
1257 set_worst_io_latencies ();
1259 void post_capture_latency ();
1260 void post_playback_latency ();
1262 void update_latency_compensation_proxy (void* ignored);
1264 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1266 void process_scrub (pframes_t);
1267 void process_without_events (pframes_t);
1268 void process_with_events (pframes_t);
1269 void process_audition (pframes_t);
1270 void process_export (pframes_t);
1271 void process_export_fw (pframes_t);
1273 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1274 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1275 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1277 static const framecnt_t bounce_chunk_size;
1279 /* slave tracking */
1281 static const int delta_accumulator_size = 25;
1282 int delta_accumulator_cnt;
1283 int32_t delta_accumulator[delta_accumulator_size];
1284 int32_t average_slave_delta;
1286 bool have_first_delta_accumulator;
1288 SlaveState _slave_state;
1291 framepos_t slave_wait_end;
1293 void reset_slave_state ();
1294 bool follow_slave (pframes_t);
1295 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1296 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1297 void follow_slave_silently (pframes_t nframes, float slave_speed);
1299 void switch_to_sync_source (SyncSource); /* !RT context */
1300 void drop_sync_source (); /* !RT context */
1301 void use_sync_source (Slave*); /* RT context */
1303 bool post_export_sync;
1304 framepos_t post_export_position;
1307 bool _export_rolling;
1308 bool _realtime_export;
1309 bool _region_export;
1310 framepos_t _export_preroll;
1311 framepos_t _export_latency;
1313 boost::shared_ptr<ExportHandler> export_handler;
1314 boost::shared_ptr<ExportStatus> export_status;
1317 int stop_audio_export ();
1318 void finalize_audio_export ();
1319 void finalize_export_internal (bool stop_freewheel);
1320 bool _pre_export_mmc_enabled;
1322 PBD::ScopedConnection export_freewheel_connection;
1324 void get_track_statistics ();
1325 int process_routes (pframes_t, bool& need_butler);
1326 int silent_process_routes (pframes_t, bool& need_butler);
1328 /** @return 1 if there is a pending declick fade-in,
1329 -1 if there is a pending declick fade-out,
1330 0 if there is no pending declick.
1332 int get_transport_declick_required () {
1333 if (transport_sub_state & PendingDeclickIn) {
1334 transport_sub_state &= ~PendingDeclickIn;
1336 } else if (transport_sub_state & PendingDeclickOut) {
1337 /* XXX: not entirely sure why we don't clear this */
1339 } else if (transport_sub_state & PendingLoopDeclickOut) {
1340 /* Return the declick out first ... */
1341 transport_sub_state &= ~PendingLoopDeclickOut;
1343 } else if (transport_sub_state & PendingLoopDeclickIn) {
1344 /* ... then the declick in on the next call */
1345 transport_sub_state &= ~PendingLoopDeclickIn;
1352 bool maybe_stop (framepos_t limit);
1353 bool maybe_sync_start (pframes_t &);
1355 void check_declick_out ();
1361 /** Number of process frames since the last MTC output (when sending MTC); used to
1362 * know when to send full MTC messages every so often.
1364 pframes_t _pframes_since_last_mtc;
1365 bool session_midi_feedback;
1368 framepos_t last_loopend;
1370 boost::scoped_ptr<SessionDirectory> _session_dir;
1373 void graph_reordered ();
1375 /** current snapshot name, without the .ardour suffix */
1376 void set_snapshot_name (const std::string &);
1377 void save_snapshot_name (const std::string &);
1378 std::string _current_snapshot_name;
1380 XMLTree* state_tree;
1381 bool state_was_pending;
1382 StateOfTheState _state_of_the_state;
1384 friend class StateProtector;
1385 gint _suspend_save; /* atomic */
1386 volatile bool _save_queued;
1387 Glib::Threads::Mutex save_state_lock;
1388 Glib::Threads::Mutex peak_cleanup_lock;
1390 int load_options (const XMLNode&);
1391 int load_state (std::string snapshot_name);
1393 framepos_t _last_roll_location;
1394 /** the session frame time at which we last rolled, located, or changed transport direction */
1395 framepos_t _last_roll_or_reversal_location;
1396 framepos_t _last_record_location;
1398 bool pending_locate_roll;
1399 framepos_t pending_locate_frame;
1400 bool pending_locate_flush;
1402 bool pending_auto_loop;
1404 PBD::ReallocPool _mempool;
1406 Glib::Threads::Mutex lua_lock;
1407 luabridge::LuaRef * _lua_run;
1408 luabridge::LuaRef * _lua_add;
1409 luabridge::LuaRef * _lua_del;
1410 luabridge::LuaRef * _lua_list;
1411 luabridge::LuaRef * _lua_load;
1412 luabridge::LuaRef * _lua_save;
1413 luabridge::LuaRef * _lua_cleanup;
1414 uint32_t _n_lua_scripts;
1417 void try_run_lua (pframes_t);
1421 static const PostTransportWork ProcessCannotProceedMask =
1423 PostTransportInputChange|
1425 PostTransportReverse|
1426 PostTransportCurveRealloc|
1427 PostTransportAudition|
1428 PostTransportLocate|
1430 PostTransportClearSubstate);
1432 gint _post_transport_work; /* accessed only atomic ops */
1433 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1434 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1435 void add_post_transport_work (PostTransportWork ptw);
1437 void schedule_playback_buffering_adjustment ();
1438 void schedule_capture_buffering_adjustment ();
1440 uint32_t cumulative_rf_motion;
1443 void set_rf_speed (float speed);
1444 void reset_rf_scale (framecnt_t frames_moved);
1446 Locations* _locations;
1447 void location_added (Location*);
1448 void location_removed (Location*);
1449 void locations_changed ();
1450 void _locations_changed (const Locations::LocationList&);
1452 void update_skips (Location*, bool consolidate);
1453 void update_marks (Location* loc);
1454 void consolidate_skips (Location*);
1455 void sync_locations_to_skips ();
1456 void _sync_locations_to_skips ();
1458 PBD::ScopedConnectionList skip_update_connections;
1459 bool _ignore_skips_updates;
1461 PBD::ScopedConnectionList punch_connections;
1462 void auto_punch_start_changed (Location *);
1463 void auto_punch_end_changed (Location *);
1464 void auto_punch_changed (Location *);
1466 PBD::ScopedConnectionList loop_connections;
1467 void auto_loop_changed (Location *);
1468 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1470 int ensure_engine (uint32_t desired_sample_rate, bool);
1471 void pre_engine_init (std::string path);
1472 int post_engine_init ();
1473 int immediately_post_engine ();
1474 void remove_empty_sounds ();
1476 void session_loaded ();
1478 void setup_midi_control ();
1479 int midi_read (MIDI::Port *);
1481 void enable_record ();
1483 void increment_transport_position (framecnt_t val) {
1484 if (max_framepos - val < _transport_frame) {
1485 _transport_frame = max_framepos;
1487 _transport_frame += val;
1491 void decrement_transport_position (framecnt_t val) {
1492 if (val < _transport_frame) {
1493 _transport_frame -= val;
1495 _transport_frame = 0;
1499 void post_transport_motion ();
1500 static void *session_loader_thread (void *arg);
1504 /* Signal Forwarding */
1505 void emit_route_signals ();
1506 void emit_thread_run ();
1507 static void *emit_thread (void *);
1508 void emit_thread_start ();
1509 void emit_thread_terminate ();
1511 pthread_t _rt_emit_thread;
1512 bool _rt_thread_active;
1514 pthread_mutex_t _rt_emit_mutex;
1515 pthread_cond_t _rt_emit_cond;
1516 bool _rt_emit_pending;
1518 /* Auto Connect Thread */
1519 static void *auto_connect_thread (void *);
1520 void auto_connect_thread_run ();
1521 void auto_connect_thread_start ();
1522 void auto_connect_thread_terminate ();
1524 pthread_t _auto_connect_thread;
1525 bool _ac_thread_active;
1526 pthread_mutex_t _auto_connect_mutex;
1527 pthread_cond_t _auto_connect_cond;
1529 struct AutoConnectRequest {
1531 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1532 const ChanCount& is,
1533 const ChanCount& os,
1534 const ChanCount& io,
1535 const ChanCount& oo)
1536 : route (boost::weak_ptr<Route> (r))
1537 , connect_inputs (ci)
1541 , output_offset (oo)
1544 boost::weak_ptr <Route> route;
1545 bool connect_inputs;
1546 ChanCount input_start;
1547 ChanCount output_start;
1548 ChanCount input_offset;
1549 ChanCount output_offset;
1552 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1553 Glib::Threads::Mutex _auto_connect_queue_lock;
1554 AutoConnectQueue _auto_connect_queue;
1555 guint _latency_recompute_pending;
1557 void get_physical_ports (std::vector<std::string>& inputs, std::vector<std::string>& outputs, DataType type,
1558 MidiPortFlags include = MidiPortFlags (0),
1559 MidiPortFlags exclude = MidiPortFlags (0));
1561 void auto_connect (const AutoConnectRequest&);
1562 void queue_latency_recompute ();
1564 /* SessionEventManager interface */
1566 void process_event (SessionEvent*);
1567 void set_next_event ();
1568 void cleanup_event (SessionEvent*,int);
1570 /* MIDI Machine Control */
1573 void spp_continue ();
1576 void mmc_deferred_play (MIDI::MachineControl &);
1577 void mmc_stop (MIDI::MachineControl &);
1578 void mmc_step (MIDI::MachineControl &, int);
1579 void mmc_pause (MIDI::MachineControl &);
1580 void mmc_record_pause (MIDI::MachineControl &);
1581 void mmc_record_strobe (MIDI::MachineControl &);
1582 void mmc_record_exit (MIDI::MachineControl &);
1583 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1584 void mmc_fast_forward (MIDI::MachineControl &);
1585 void mmc_rewind (MIDI::MachineControl &);
1586 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1587 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1588 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1590 struct timeval last_mmc_step;
1593 typedef boost::function<bool()> MidiTimeoutCallback;
1594 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1596 MidiTimeoutList midi_timeouts;
1597 bool mmc_step_timeout ();
1598 void send_immediate_mmc (MIDI::MachineControlCommand);
1600 MIDI::byte mtc_msg[16];
1601 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1602 MIDI::byte midi_msg[16];
1603 double outbound_mtc_timecode_frame;
1604 Timecode::Time transmitting_timecode_time;
1605 int next_quarter_frame_to_send;
1607 double _samples_per_timecode_frame; /* has to be floating point because of drop frame */
1608 framecnt_t _frames_per_hour;
1609 framecnt_t _timecode_frames_per_hour;
1611 /* cache the most-recently requested time conversions. This helps when we
1612 * have multiple clocks showing the same time (e.g. the transport frame) */
1613 bool last_timecode_valid;
1614 framepos_t last_timecode_when;
1615 Timecode::Time last_timecode;
1617 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1619 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1621 LTCEncoder* ltc_encoder;
1622 ltcsnd_sample_t* ltc_enc_buf;
1624 Timecode::TimecodeFormat ltc_enc_tcformat;
1625 int32_t ltc_buf_off;
1626 int32_t ltc_buf_len;
1629 int32_t ltc_enc_byte;
1630 framepos_t ltc_enc_pos;
1632 framepos_t ltc_enc_off;
1634 framepos_t ltc_prev_cycle;
1636 framepos_t ltc_timecode_offset;
1637 bool ltc_timecode_negative_offset;
1639 LatencyRange ltc_out_latency;
1641 void ltc_tx_initialize();
1642 void ltc_tx_cleanup();
1643 void ltc_tx_reset();
1644 void ltc_tx_resync_latency();
1645 void ltc_tx_recalculate_position();
1646 void ltc_tx_parse_offset();
1647 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1649 void reset_record_status ();
1651 int no_roll (pframes_t nframes);
1652 int fail_roll (pframes_t nframes);
1654 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1655 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1657 MidiControlUI* midi_control_ui;
1659 int start_midi_thread ();
1661 void set_play_loop (bool yn, double speed);
1662 void unset_play_loop ();
1663 void overwrite_some_buffers (Track *);
1664 void flush_all_inserts ();
1665 int micro_locate (framecnt_t distance);
1666 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1667 void start_locate (framepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1668 void force_locate (framepos_t frame, bool with_roll = false);
1669 void set_track_speed (Track *, double speed);
1670 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1671 void stop_transport (bool abort = false, bool clear_state = false);
1672 void start_transport ();
1673 void realtime_stop (bool abort, bool clear_state);
1674 void realtime_locate ();
1675 void non_realtime_start_scrub ();
1676 void non_realtime_set_speed ();
1677 void non_realtime_locate ();
1678 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1679 void non_realtime_overwrite (int entry_request_count, bool& finished);
1680 void post_transport ();
1681 void engine_halted ();
1682 void xrun_recovery ();
1683 void set_track_loop (bool);
1684 bool select_playhead_priority_target (framepos_t&);
1685 void follow_playhead_priority ();
1687 /* These are synchronous and so can only be called from within the process
1691 int send_full_time_code (framepos_t, pframes_t nframes);
1692 void send_song_position_pointer (framepos_t);
1694 TempoMap *_tempo_map;
1695 void tempo_map_changed (const PBD::PropertyChange&);
1696 void gui_tempo_map_changed ();
1698 /* edit/mix groups */
1700 int load_route_groups (const XMLNode&, int);
1702 std::list<RouteGroup *> _route_groups;
1703 RouteGroup* _all_route_group;
1707 boost::shared_ptr<Graph> _process_graph;
1709 SerializedRCUManager<RouteList> routes;
1711 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save, PresentationInfo::order_t);
1712 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect, PresentationInfo::order_t);
1713 bool _adding_routes_in_progress;
1714 bool _reconnecting_routes_in_progress;
1715 bool _route_deletion_in_progress;
1717 uint32_t destructive_index;
1719 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1720 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1722 void route_processors_changed (RouteProcessorChange);
1724 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1725 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1726 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1727 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1729 /* track numbering */
1731 void reassign_track_numbers ();
1732 uint32_t _track_number_decimals;
1734 /* solo/mute/notifications */
1736 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1737 void route_mute_changed ();
1738 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1739 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1741 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1743 void listen_position_changed ();
1744 void solo_control_mode_changed ();
1746 /* REGION MANAGEMENT */
1748 mutable Glib::Threads::Mutex region_lock;
1750 int load_regions (const XMLNode& node);
1751 int load_compounds (const XMLNode& node);
1753 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1754 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1755 void route_group_property_changed (RouteGroup *);
1759 mutable Glib::Threads::Mutex source_lock;
1762 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1765 void reset_write_sources (bool mark_write_complete, bool force = false);
1770 int load_sources (const XMLNode& node);
1771 XMLNode& get_sources_as_xml ();
1773 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1777 void remove_playlist (boost::weak_ptr<Playlist>);
1778 void track_playlist_changed (boost::weak_ptr<Track>);
1779 void playlist_region_added (boost::weak_ptr<Region>);
1780 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1781 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1783 /* CURVES and AUTOMATION LISTS */
1784 std::map<PBD::ID, AutomationList*> automation_lists;
1786 /* DEFAULT FADE CURVES */
1788 float default_fade_steepness;
1789 float default_fade_msecs;
1793 boost::shared_ptr<Auditioner> auditioner;
1794 void set_audition (boost::shared_ptr<Region>);
1795 void non_realtime_set_audition ();
1796 boost::shared_ptr<Region> pending_audition_region;
1802 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1804 /* INSERT AND SEND MANAGEMENT */
1806 boost::dynamic_bitset<uint32_t> send_bitset;
1807 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1808 boost::dynamic_bitset<uint32_t> return_bitset;
1809 boost::dynamic_bitset<uint32_t> insert_bitset;
1813 struct space_and_path {
1814 uint32_t blocks; ///< 4kB blocks
1815 bool blocks_unknown; ///< true if blocks is unknown
1820 , blocks_unknown (true)
1824 struct space_and_path_ascending_cmp {
1825 bool operator() (space_and_path a, space_and_path b) {
1826 if (a.blocks_unknown != b.blocks_unknown) {
1827 return !a.blocks_unknown;
1829 return a.blocks > b.blocks;
1833 void setup_raid_path (std::string path);
1835 std::vector<space_and_path> session_dirs;
1836 std::vector<space_and_path>::iterator last_rr_session_dir;
1837 uint32_t _total_free_4k_blocks;
1838 /** If this is true, _total_free_4k_blocks is not definite,
1839 as one or more of the session directories' filesystems
1840 could not report free space.
1842 bool _total_free_4k_blocks_uncertain;
1843 Glib::Threads::Mutex space_lock;
1845 bool no_questions_about_missing_files;
1847 std::string get_best_session_directory_for_new_audio ();
1849 mutable gint _playback_load;
1850 mutable gint _capture_load;
1854 SerializedRCUManager<BundleList> _bundles;
1855 XMLNode* _bundle_xml_node;
1856 int load_bundles (XMLNode const &);
1858 UndoHistory _history;
1859 /** current undo transaction, or 0 */
1860 UndoTransaction* _current_trans;
1861 /** GQuarks to describe the reversible commands that are currently in progress.
1862 * These may be nested, in which case more recently-started commands are toward
1863 * the front of the list.
1865 std::list<GQuark> _current_trans_quarks;
1867 int backend_sync_callback (TransportState, framepos_t);
1869 void process_rtop (SessionEvent*);
1871 void update_latency (bool playback);
1873 XMLNode& state(bool);
1876 typedef std::list<Click*> Clicks;
1879 boost::shared_ptr<IO> _click_io;
1880 boost::shared_ptr<Amp> _click_gain;
1882 Sample* click_emphasis_data;
1883 framecnt_t click_length;
1884 framecnt_t click_emphasis_length;
1885 mutable Glib::Threads::RWLock click_lock;
1887 static const Sample default_click[];
1888 static const framecnt_t default_click_length;
1889 static const Sample default_click_emphasis[];
1890 static const framecnt_t default_click_emphasis_length;
1893 framepos_t _clicks_cleared;
1894 void setup_click_sounds (int which);
1895 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1896 void clear_clicks ();
1897 void click (framepos_t start, framecnt_t nframes);
1899 std::vector<Route*> master_outs;
1901 /* range playback */
1903 std::list<AudioRange> current_audio_range;
1905 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1906 void unset_play_range ();
1908 /* temporary hacks to allow selection to be pushed from GUI into backend
1909 Whenever we move the selection object into libardour, these will go away.
1911 Evoral::Range<framepos_t> _range_selection;
1912 Evoral::Range<framepos_t> _object_selection;
1917 boost::shared_ptr<Route> _master_out;
1918 boost::shared_ptr<Route> _monitor_out;
1920 void auto_connect_master_bus ();
1922 /* Windows VST support */
1924 long _windows_vst_callback (
1933 int find_all_sources (std::string path, std::set<std::string>& result);
1934 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1936 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1937 Glib::Threads::Mutex controllables_lock;
1938 Controllables controllables;
1940 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1942 void reset_native_file_format();
1943 bool first_file_data_format_reset;
1944 bool first_file_header_format_reset;
1946 void config_changed (std::string, bool);
1948 XMLNode& get_control_protocol_state ();
1950 void set_history_depth (uint32_t depth);
1952 static bool _disable_all_loaded_plugins;
1953 static bool _bypass_all_loaded_plugins;
1955 mutable bool have_looped; ///< Used in ::audible_frame(*)
1957 void update_route_record_state ();
1958 gint _have_rec_enabled_track;
1959 gint _have_rec_disabled_track;
1961 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1963 /* realtime "apply to set of routes" operations */
1964 template<typename T> SessionEvent*
1965 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1966 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1967 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1968 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1969 ev->rt_return = after;
1970 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1975 /* specialized version realtime "apply to set of routes" operations */
1976 template<typename T1, typename T2> SessionEvent*
1977 get_rt_event (boost::shared_ptr<RouteList> rl, T1 t1arg, T2 t2arg, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1978 void (Session::*method) (boost::shared_ptr<RouteList>, T1, T2, PBD::Controllable::GroupControlDisposition)) {
1979 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1980 ev->rt_slot = boost::bind (method, this, rl, t1arg, t2arg, group_override);
1981 ev->rt_return = after;
1982 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1987 /* specialized version realtime "apply to set of controls" operations */
1988 SessionEvent* get_rt_event (boost::shared_ptr<ControlList> cl, double arg, PBD::Controllable::GroupControlDisposition group_override) {
1989 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1990 ev->rt_slot = boost::bind (&Session::rt_set_controls, this, cl, arg, group_override);
1991 ev->rt_return = Session::rt_cleanup;
1992 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1997 void rt_set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition group_override);
1998 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
2000 /** temporary list of Diskstreams used only during load of 2.X sessions */
2001 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
2003 void set_session_range_location (framepos_t, framepos_t);
2005 void setup_midi_machine_control ();
2007 void step_edit_status_change (bool);
2008 uint32_t _step_editors;
2010 /** true if timecode transmission by the transport is suspended, otherwise false */
2011 mutable gint _suspend_timecode_transmission;
2013 void update_locations_after_tempo_map_change (const Locations::LocationList &);
2015 void start_time_changed (framepos_t);
2016 void end_time_changed (framepos_t);
2018 void set_track_monitor_input_status (bool);
2019 framepos_t compute_stop_limit () const;
2021 boost::shared_ptr<Speakers> _speakers;
2022 void load_nested_sources (const XMLNode& node);
2024 /** The directed graph of routes that is currently being used for audio processing
2025 and solo/mute computations.
2027 GraphEdges _current_route_graph;
2029 void ensure_route_presentation_info_gap (PresentationInfo::order_t, uint32_t gap_size);
2031 friend class ProcessorChangeBlocker;
2032 gint _ignore_route_processor_changes; /* atomic */
2034 MidiClockTicker* midi_clock;
2036 boost::shared_ptr<IO> _ltc_input;
2037 boost::shared_ptr<IO> _ltc_output;
2039 /* Scene Changing */
2040 SceneChanger* _scene_changer;
2042 /* persistent, non-track related MIDI ports */
2043 MidiPortManager* _midi_ports;
2044 MIDI::MachineControl* _mmc;
2047 void setup_click ();
2048 void setup_click_state (const XMLNode*);
2049 void setup_bundles ();
2051 void save_as_bring_callback (uint32_t, uint32_t, std::string);
2053 static const uint32_t session_end_shift;
2055 std::string _template_state_dir;
2057 VCAManager* _vca_manager;
2059 boost::shared_ptr<Route> get_midi_nth_route_by_id (PresentationInfo::order_t n) const;
2061 std::string created_with;
2063 void midi_track_presentation_info_changed (PBD::PropertyChange const &, boost::weak_ptr<MidiTrack>);
2064 void rewire_selected_midi (boost::shared_ptr<MidiTrack>);
2065 void rewire_midi_selection_ports ();
2066 boost::weak_ptr<MidiTrack> current_midi_target;
2070 } // namespace ARDOUR
2072 #endif /* __ardour_session_h__ */