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"
45 #include "pbd/file_archive.h"
47 #include "pbd/reallocpool.h"
48 #include "pbd/statefuldestructible.h"
49 #include "pbd/signals.h"
52 #include "lua/luastate.h"
54 #include "evoral/Range.hpp"
56 #include "midi++/types.h"
57 #include "midi++/mmc.h"
59 #include "temporal/time.h"
61 #include "ardour/ardour.h"
62 #include "ardour/chan_count.h"
63 #include "ardour/delivery.h"
64 #include "ardour/interthread_info.h"
65 #include "ardour/luascripting.h"
66 #include "ardour/location.h"
67 #include "ardour/monitor_processor.h"
68 #include "ardour/presentation_info.h"
69 #include "ardour/rc_configuration.h"
70 #include "ardour/session_configuration.h"
71 #include "ardour/session_event.h"
72 #include "ardour/interpolation.h"
73 #include "ardour/plugin.h"
74 #include "ardour/presentation_info.h"
75 #include "ardour/route.h"
76 #include "ardour/route_graph.h"
82 typedef struct _AEffect AEffect;
106 class AudioFileSource;
111 class AutomationList;
117 class ControllableDescriptor;
125 class MidiClockTicker;
127 class MidiPortManager;
148 class SessionDirectory;
149 class SessionMetadata;
150 class SessionPlaylists;
157 class WindowsVSTPlugin;
159 extern void setup_enum_writer ();
161 class LIBARDOUR_API SessionException: public std::exception {
163 explicit SessionException(const std::string msg) : _message(msg) {}
164 virtual ~SessionException() throw() {}
166 virtual const char* what() const throw() { return _message.c_str(); }
169 std::string _message;
172 /** Ardour Session */
173 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
177 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
178 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
179 StopPendingCapture = 0x4,
180 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
181 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
182 PendingLocate = 0x20,
192 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
193 the bus profile can be null if no master out bus is required.
196 Session (AudioEngine&,
197 const std::string& fullpath,
198 const std::string& snapshot_name,
199 BusProfile* bus_profile = 0,
200 std::string mix_template = "");
204 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format, std::string& program_version);
205 static std::string get_snapshot_from_instant (const std::string& session_dir);
207 /** a monotonic counter used for naming user-visible things uniquely
208 * (curently the sidechain port).
209 * Use sparingly to keep the numbers low, prefer PBD::ID for all
210 * internal, not user-visible IDs */
211 static unsigned int next_name_id ();
213 std::string path() const { return _path; }
214 std::string name() const { return _name; }
215 std::string snap_name() const { return _current_snapshot_name; }
216 std::string raid_path () const;
217 bool path_is_within_session (const std::string&);
219 bool writable() const { return _writable; }
222 bool dirty() const { return _state_of_the_state & Dirty; }
223 void set_deletion_in_progress ();
224 void clear_deletion_in_progress ();
225 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
226 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
227 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
228 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
229 bool loading () const { return _state_of_the_state & Loading; }
231 PBD::Signal0<void> DirtyChanged;
233 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
235 static PBD::Signal1<void,std::string> Dialog;
237 PBD::Signal0<void> BatchUpdateStart;
238 PBD::Signal0<void> BatchUpdateEnd;
240 int ensure_subdirs ();
242 std::string automation_dir () const; ///< Automation data
243 std::string analysis_dir () const; ///< Analysis data
244 std::string plugins_dir () const; ///< Plugin state
245 std::string externals_dir () const; ///< Links to external files
247 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
249 bool audio_source_name_is_unique (const std::string& name);
250 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);
251 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
252 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
253 std::string new_midi_source_path (const std::string&, bool need_source_lock = true);
254 /** create a new track or bus from a template (XML path)
255 * @param how_many how many tracks or busses to create
256 * @param template_path path to xml template file
257 * @param name name (prefix) of the route to create
258 * @param pd Playlist disposition
259 * @return list of newly created routes
261 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);
262 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
263 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path,
264 uint32_t channels, std::vector<std::string> const & smf_track_names);
266 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
268 void process (pframes_t nframes);
270 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
271 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
272 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
273 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
274 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
276 bool have_rec_enabled_track () const;
277 bool have_rec_disabled_track () const;
279 bool have_captured() const { return _have_captured; }
281 void refill_all_track_buffers ();
282 Butler* butler() { return _butler; }
283 void butler_transport_work ();
285 void refresh_disk_space ();
287 int load_routes (const XMLNode&, int);
288 boost::shared_ptr<RouteList> get_routes() const {
289 return routes.reader ();
292 boost::shared_ptr<RTTaskList> rt_tasklist () { return _rt_tasklist; }
294 CoreSelection& selection () { return *_selection; }
296 /* because the set of Stripables consists of objects managed
297 * independently, in multiple containers within the Session (or objects
298 * owned by the session), we fill out a list in-place rather than
299 * return a pointer to a copy of the (RCU) managed list, as happens
303 void get_stripables (StripableList&) const;
304 StripableList get_stripables () const;
305 boost::shared_ptr<RouteList> get_tracks() const;
306 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
307 boost::shared_ptr<RouteList> get_routes_with_regions_at (samplepos_t const) const;
309 uint32_t nstripables (bool with_monitor = false) const;
310 uint32_t nroutes() const { return routes.reader()->size(); }
311 uint32_t ntracks () const;
312 uint32_t nbusses () const;
314 boost::shared_ptr<BundleList> bundles () {
315 return _bundles.reader ();
318 void notify_presentation_info_change ();
320 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
321 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
322 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
324 static char session_name_is_legal (const std::string&);
325 bool io_name_is_legal (const std::string&) const;
326 boost::shared_ptr<Route> route_by_name (std::string) const;
327 boost::shared_ptr<Route> route_by_id (PBD::ID) const;
328 boost::shared_ptr<Stripable> stripable_by_id (PBD::ID) const;
329 boost::shared_ptr<Stripable> get_remote_nth_stripable (PresentationInfo::order_t n, PresentationInfo::Flag) const;
330 boost::shared_ptr<Route> get_remote_nth_route (PresentationInfo::order_t n) const;
331 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt) const;
332 void routes_using_input_from (const std::string& str, RouteList& rl);
334 bool route_name_unique (std::string) const;
335 bool route_name_internal (std::string) const;
337 uint32_t track_number_decimals () const {
338 return _track_number_decimals;
341 bool get_record_enabled() const {
342 return (record_status () >= Enabled);
345 RecordState record_status() const {
346 return (RecordState) g_atomic_int_get (&_record_status);
349 bool actively_recording () const {
350 return record_status() == Recording;
353 bool record_enabling_legal () const;
354 void maybe_enable_record (bool rt_context = false);
355 void disable_record (bool rt_context, bool force = false);
356 void step_back_from_record ();
358 void set_all_tracks_record_enabled(bool);
360 void maybe_write_autosave ();
362 /* Emitted when all i/o connections are complete */
364 PBD::Signal0<void> IOConnectionsComplete;
366 /* Timecode status signals */
367 PBD::Signal1<void, bool> MTCSyncStateChanged;
368 PBD::Signal1<void, bool> LTCSyncStateChanged;
370 /* Record status signals */
372 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
373 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
374 from the previous signal and session state.
376 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
378 /* Emited when session is loaded */
379 PBD::Signal0<void> SessionLoaded;
381 /* Transport mechanism signals */
383 /** Emitted on the following changes in transport state:
384 * - stop (from the butler thread)
385 * - change in whether or not we are looping (from the process thread)
386 * - change in the play range (from the process thread)
387 * - start (from the process thread)
390 PBD::Signal0<void> TransportStateChange;
392 PBD::Signal1<void,samplepos_t> PositionChanged; /* sent after any non-sequential motion */
393 PBD::Signal1<void,samplepos_t> Xrun;
394 PBD::Signal0<void> TransportLooped;
396 /** emitted when a locate has occurred */
397 PBD::Signal0<void> Located;
399 PBD::Signal1<void,RouteList&> RouteAdded;
400 /** Emitted when a property of one of our route groups changes.
401 * The parameter is the RouteGroup that has changed.
403 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
404 /** Emitted when a route is added to one of our route groups.
405 * First parameter is the RouteGroup, second is the route.
407 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
408 /** Emitted when a route is removed from one of our route groups.
409 * First parameter is the RouteGroup, second is the route.
411 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
413 /* Step Editing status changed */
414 PBD::Signal1<void,bool> StepEditStatusChange;
416 /* Timecode state signals */
417 PBD::Signal0<void> MtcOrLtcInputPortChanged;
419 void queue_event (SessionEvent*);
421 void request_roll_at_and_return (samplepos_t start, samplepos_t return_to);
422 void request_bounded_roll (samplepos_t start, samplepos_t end);
423 void request_stop (bool abort = false, bool clear_state = false);
424 void request_locate (samplepos_t sample, bool with_roll = false);
426 void request_play_loop (bool yn, bool leave_rolling = false);
427 bool get_play_loop () const { return play_loop; }
429 samplepos_t last_transport_start () const { return _last_roll_location; }
431 void goto_start (bool and_roll = false);
432 void use_rf_shuttle_speed ();
433 void allow_auto_play (bool yn);
434 void request_transport_speed (double speed, bool as_default = true);
435 void request_transport_speed_nonzero (double, bool as_default = true);
436 void request_overwrite_buffer (boost::shared_ptr<Route>);
437 void adjust_playback_buffering();
438 void adjust_capture_buffering();
440 bool global_locate_pending() const { return _global_locate_pending; }
441 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
442 bool declick_out_pending() const { return static_cast<bool>(transport_sub_state&(PendingDeclickOut)); }
443 bool transport_locked () const;
447 samplepos_t current_end_sample () const;
448 samplepos_t current_start_sample () const;
449 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
450 samplecnt_t sample_rate () const { return _current_sample_rate; }
451 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
452 samplecnt_t nominal_sample_rate () const { return _nominal_sample_rate; }
453 samplecnt_t frames_per_hour () const { return _frames_per_hour; }
455 double samples_per_timecode_frame() const { return _samples_per_timecode_frame; }
456 samplecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
458 MIDI::byte get_mtc_timecode_bits() const {
459 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
462 double timecode_frames_per_second() const;
463 bool timecode_drop_frames() const;
467 Locations *locations() { return _locations; }
469 PBD::Signal1<void,Location*> auto_loop_location_changed;
470 PBD::Signal1<void,Location*> auto_punch_location_changed;
471 PBD::Signal0<void> locations_modified;
473 void set_auto_punch_location (Location *);
474 void set_auto_loop_location (Location *);
475 void set_session_extents (samplepos_t start, samplepos_t end);
476 bool end_is_free () const { return _session_range_end_is_free; }
477 void set_end_is_free (bool);
478 int location_name(std::string& result, std::string base = std::string(""));
480 pframes_t get_block_size () const { return current_block_size; }
481 samplecnt_t worst_output_latency () const { return _worst_output_latency; }
482 samplecnt_t worst_input_latency () const { return _worst_input_latency; }
483 samplecnt_t worst_route_latency () const { return _worst_route_latency; }
484 samplecnt_t worst_latency_preroll () const;
487 std::string new_parent_folder; /* parent folder where new session folder will be created */
488 std::string new_name; /* name of newly saved session */
489 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
490 bool include_media; /* true if the newly saved session should contain references to media */
491 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
492 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
494 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
496 /* emitted as we make progress. 3 arguments passed to signal
499 * 1: percentage complete measured as a fraction (0-1.0) of
500 * total data copying done.
501 * 2: number of files copied so far
502 * 3: total number of files to copy
504 * Handler should return true for save-as to continue, or false
505 * to stop (and remove all evidence of partial save-as).
507 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
509 /* if save_as() returns non-zero, this string will indicate the reason why.
511 std::string failure_message;
514 int save_as (SaveAs&);
517 * @param snapshot_name name of the session (use an empty string for the current name)
518 * @param pending save a 'recovery', not full state (default: false)
519 * @param switch_to_snapshot switch to given snapshot after saving (default: false)
520 * @param template_only save a session template (default: false)
521 * @return zero on success
523 int save_state (std::string snapshot_name,
524 bool pending = false,
525 bool switch_to_snapshot = false,
526 bool template_only = false,
527 bool for_archive = false,
528 bool only_used_assets = false);
536 int archive_session (const std::string&, const std::string&,
537 ArchiveEncode compress_audio = FLAC_16BIT,
538 PBD::FileArchive::CompressionLevel compression_level = PBD::FileArchive::CompressGood,
539 bool only_used_sources = false,
542 int restore_state (std::string snapshot_name);
543 int save_template (const std::string& template_name, const std::string& description = "", bool replace_existing = false);
544 int save_history (std::string snapshot_name = "");
545 int restore_history (std::string snapshot_name);
546 void remove_state (std::string snapshot_name);
547 void rename_state (std::string old_name, std::string new_name);
548 void remove_pending_capture_state ();
549 int rename (const std::string&);
550 bool get_nsm_state () const { return _under_nsm_control; }
551 void set_nsm_state (bool state) { _under_nsm_control = state; }
552 bool save_default_options ();
554 PBD::Signal1<void,std::string> StateSaved;
555 PBD::Signal0<void> StateReady;
557 /* emitted when session needs to be saved due to some internal
558 * event or condition (i.e. not in response to a user request).
560 * Only one object should
561 * connect to this signal and take responsibility.
563 * Argument is the snapshot name to use when saving.
565 PBD::Signal1<void,std::string> SaveSessionRequested;
567 /* emitted during a session save to allow other entities to add state, via
568 * extra XML, to the session state
570 PBD::Signal0<void> SessionSaveUnderway;
572 std::vector<std::string> possible_states() const;
573 static std::vector<std::string> possible_states (std::string path);
575 bool export_track_state (boost::shared_ptr<RouteList> rl, const std::string& path);
577 /// The instant xml file is written to the session directory
578 void add_instant_xml (XMLNode&, bool write_to_config = true);
579 XMLNode* instant_xml (const std::string& str);
581 enum StateOfTheState {
586 InitialConnecting = 0x8,
592 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
594 class StateProtector {
596 StateProtector (Session* s) : _session (s) {
597 g_atomic_int_inc (&s->_suspend_save);
600 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
601 while (_session->_save_queued) {
602 _session->_save_queued = false;
603 _session->save_state ("");
611 class ProcessorChangeBlocker {
613 ProcessorChangeBlocker (Session* s, bool rc = true)
615 , _reconfigure_on_delete (rc)
617 g_atomic_int_inc (&s->_ignore_route_processor_changes);
619 ~ProcessorChangeBlocker () {
620 if (g_atomic_int_dec_and_test (&_session->_ignore_route_processor_changes)) {
621 if (_reconfigure_on_delete) {
622 _session->route_processors_changed (RouteProcessorChange ());
628 bool _reconfigure_on_delete;
631 RouteGroup* new_route_group (const std::string&);
632 void add_route_group (RouteGroup *);
633 void remove_route_group (RouteGroup* rg) { if (rg) remove_route_group (*rg); }
634 void remove_route_group (RouteGroup&);
635 void reorder_route_groups (std::list<RouteGroup*>);
637 RouteGroup* route_group_by_name (std::string);
638 RouteGroup& all_route_group() const;
640 PBD::Signal1<void,RouteGroup*> route_group_added;
641 PBD::Signal0<void> route_group_removed;
642 PBD::Signal0<void> route_groups_reordered;
644 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
645 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
650 std::list<RouteGroup*> const & route_groups () const {
651 return _route_groups;
654 /* fundamental operations. duh. */
656 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
659 RouteGroup* route_group,
661 std::string name_template,
662 PresentationInfo::order_t order,
663 TrackMode mode = Normal
666 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
667 const ChanCount& input, const ChanCount& output, bool strict_io,
668 boost::shared_ptr<PluginInfo> instrument,
669 Plugin::PresetRecord* pset,
670 RouteGroup* route_group, uint32_t how_many, std::string name_template,
671 PresentationInfo::order_t,
672 TrackMode mode = Normal
675 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);
676 RouteList new_midi_route (RouteGroup* route_group, uint32_t how_many, std::string name_template, bool strict_io, boost::shared_ptr<PluginInfo> instrument, Plugin::PresetRecord*, PresentationInfo::Flag, PresentationInfo::order_t);
678 void remove_routes (boost::shared_ptr<RouteList>);
679 void remove_route (boost::shared_ptr<Route>);
681 void resort_routes ();
682 void resort_routes_using (boost::shared_ptr<RouteList>);
684 AudioEngine & engine() { return _engine; }
685 AudioEngine const & engine () const { return _engine; }
687 static std::string default_track_name_pattern (DataType);
691 samplepos_t transport_sample () const { return _transport_sample; }
692 samplepos_t record_location () const { return _last_record_location; }
693 samplepos_t audible_sample (bool* latent_locate = NULL) const;
694 samplepos_t requested_return_sample() const { return _requested_return_sample; }
695 void set_requested_return_sample(samplepos_t return_to);
697 samplecnt_t remaining_latency_preroll () const { return _remaining_latency_preroll; }
711 void sync_time_vars();
713 void bbt_time (samplepos_t when, Timecode::BBT_Time&);
714 void timecode_to_sample(Timecode::Time& timecode, samplepos_t& sample, bool use_offset, bool use_subframes) const;
715 void sample_to_timecode(samplepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
716 void timecode_time (Timecode::Time &);
717 void timecode_time (samplepos_t when, Timecode::Time&);
718 void timecode_time_subframes (samplepos_t when, Timecode::Time&);
720 void timecode_duration (samplecnt_t, Timecode::Time&) const;
721 void timecode_duration_string (char *, size_t len, samplecnt_t) const;
723 samplecnt_t convert_to_samples (AnyTime const & position);
724 samplecnt_t any_duration_to_samples (samplepos_t position, AnyTime const & duration);
726 static PBD::Signal1<void, samplepos_t> StartTimeChanged;
727 static PBD::Signal1<void, samplepos_t> EndTimeChanged;
729 void request_sync_source (Slave*);
730 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
731 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
732 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
734 double engine_speed() const { return _engine_speed; }
735 double actual_speed() const {
736 if (_transport_speed > 0) return _engine_speed;
737 if (_transport_speed < 0) return - _engine_speed;
740 double transport_speed() const { return _count_in_samples > 0 ? 0. : _transport_speed; }
741 bool transport_stopped() const { return _transport_speed == 0.0; }
742 bool transport_rolling() const { return _transport_speed != 0.0 && _count_in_samples == 0 && _remaining_latency_preroll == 0; }
744 bool silent () { return _silent; }
746 TempoMap& tempo_map() { return *_tempo_map; }
747 const TempoMap& tempo_map() const { return *_tempo_map; }
749 unsigned int get_xrun_count () const {return _xrun_count; }
750 void reset_xrun_count () {_xrun_count = 0; }
754 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
756 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
757 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
758 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
760 /* source management */
762 void import_files (ImportStatus&);
763 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
764 std::string build_tmp_convert_name (std::string file);
766 boost::shared_ptr<ExportHandler> get_export_handler ();
767 boost::shared_ptr<ExportStatus> get_export_status ();
769 int start_audio_export (samplepos_t position, bool realtime = false, bool region_export = false);
771 PBD::Signal1<int, samplecnt_t> ProcessExport;
772 static PBD::Signal2<void,std::string, std::string> Exported;
774 void add_source (boost::shared_ptr<Source>);
775 void remove_source (boost::weak_ptr<Source>);
777 void cleanup_regions();
778 bool can_cleanup_peakfiles () const;
779 int cleanup_peakfiles ();
780 int cleanup_sources (CleanupReport&);
781 int cleanup_trash_sources (CleanupReport&);
783 int destroy_sources (std::list<boost::shared_ptr<Source> >);
785 int remove_last_capture ();
787 /** handlers should return 0 for "everything OK", and any other value for
788 * "cannot setup audioengine".
790 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
792 /** handlers should return -1 for "stop cleanup",
793 0 for "yes, delete this playlist",
794 1 for "no, don't delete this playlist".
796 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
798 /** handlers should return 0 for "ignore the rate mismatch",
799 !0 for "do not use this session"
801 static PBD::Signal2<int, samplecnt_t, samplecnt_t> AskAboutSampleRateMismatch;
803 /** non interactive message */
804 static PBD::Signal2<void, samplecnt_t, samplecnt_t> NotifyAboutSampleRateMismatch;
806 /** handlers should return !0 for use pending state, 0 for ignore it.
808 static PBD::Signal0<int> AskAboutPendingState;
810 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
811 size_t, std::string const &, uint32_t, bool destructive);
813 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
814 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
816 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
817 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
818 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&, bool need_source_lock) const;
819 uint32_t count_sources_by_origin (const std::string&);
821 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
823 /* Curves and AutomationLists (TODO when they go away) */
824 void add_automation_list(AutomationList*);
828 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
829 void audition_playlist ();
830 void audition_region (boost::shared_ptr<Region>);
831 void cancel_audition ();
832 bool is_auditioning () const;
834 PBD::Signal1<void,bool> AuditionActive;
837 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
838 void unregister_lua_function (const std::string& name);
839 std::vector<std::string> registered_lua_functions ();
840 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
841 void scripts_changed (); // called from lua, updates _n_lua_scripts
843 PBD::Signal0<void> LuaScriptsChanged;
845 /* flattening stuff */
847 boost::shared_ptr<Region> write_one_track (Track&, samplepos_t start, samplepos_t end,
848 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
849 boost::shared_ptr<Processor> endpoint,
850 bool include_endpoint, bool for_export, bool for_freeze);
851 int freeze_all (InterThreadInfo&);
853 /* session-wide solo/mute/rec-enable */
856 std::vector<boost::weak_ptr<AutomationControl> > cancel_all_mute ();
858 bool soloing() const { return _non_soloed_outs_muted; }
859 bool listening() const { return _listen_cnt > 0; }
860 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
861 void cancel_all_solo ();
863 static const SessionEvent::RTeventCallback rt_cleanup;
865 void clear_all_solo_state (boost::shared_ptr<RouteList>);
867 /* Control-based methods */
869 void set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition);
870 void set_control (boost::shared_ptr<AutomationControl>, double val, PBD::Controllable::GroupControlDisposition);
872 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
874 PBD::Signal1<void,bool> SoloActive;
875 PBD::Signal0<void> SoloChanged;
876 PBD::Signal0<void> MuteChanged;
877 PBD::Signal0<void> IsolatedChanged;
878 PBD::Signal0<void> MonitorChanged;
880 PBD::Signal0<void> session_routes_reconnected;
882 /* monitor/master out */
883 int add_master_bus (ChanCount const&);
885 void add_monitor_section ();
886 void reset_monitor_section ();
887 void remove_monitor_section ();
888 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
890 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
891 boost::shared_ptr<Route> master_out() const { return _master_out; }
893 PresentationInfo::order_t master_order_key () const { return _master_out ? _master_out->presentation_info ().order () : -1; }
894 bool ensure_stripable_sort_order ();
896 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
897 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
898 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
899 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
900 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
901 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
902 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
904 static void set_disable_all_loaded_plugins (bool yn) {
905 _disable_all_loaded_plugins = yn;
907 static bool get_disable_all_loaded_plugins() {
908 return _disable_all_loaded_plugins;
910 static void set_bypass_all_loaded_plugins (bool yn) {
911 _bypass_all_loaded_plugins = yn;
913 static bool get_bypass_all_loaded_plugins() {
914 return _bypass_all_loaded_plugins;
917 uint32_t next_send_id();
918 uint32_t next_aux_send_id();
919 uint32_t next_return_id();
920 uint32_t next_insert_id();
921 void mark_send_id (uint32_t);
922 void mark_aux_send_id (uint32_t);
923 void mark_return_id (uint32_t);
924 void mark_insert_id (uint32_t);
925 void unmark_send_id (uint32_t);
926 void unmark_aux_send_id (uint32_t);
927 void unmark_return_id (uint32_t);
928 void unmark_insert_id (uint32_t);
930 /* s/w "RAID" management */
932 boost::optional<samplecnt_t> available_capture_duration();
936 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
937 void remove_bundle (boost::shared_ptr<Bundle>);
938 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
940 PBD::Signal0<void> BundleAddedOrRemoved;
944 /* History (for editors, mixers, UIs etc.) */
946 /** Undo some transactions.
947 * @param n Number of transactions to undo.
949 void undo (uint32_t n);
950 /** Redo some transactions.
951 * @param n Number of transactions to undo.
953 void redo (uint32_t n);
955 UndoHistory& history() { return _history; }
957 uint32_t undo_depth() const { return _history.undo_depth(); }
958 uint32_t redo_depth() const { return _history.redo_depth(); }
959 std::string next_undo() const { return _history.next_undo(); }
960 std::string next_redo() const { return _history.next_redo(); }
962 /** begin collecting undo information
964 * This call must always be followed by either
965 * begin_reversible_command() or commit_reversible_command()
967 * @param cmd_name human readable name for the undo operation
969 void begin_reversible_command (const std::string& cmd_name);
970 void begin_reversible_command (GQuark);
971 /** abort an open undo command
972 * This must only be called after begin_reversible_command ()
974 void abort_reversible_command ();
975 /** finalize an undo command and commit pending transactions
977 * This must only be called after begin_reversible_command ()
978 * @param cmd (additional) command to add
980 void commit_reversible_command (Command* cmd = 0);
982 void add_command (Command *const cmd);
984 /** create an StatefulDiffCommand from the given object and add it to the stack.
986 * This function must only be called after begin_reversible_command.
987 * Failing to do so may lead to a crash.
989 * @param sfd the object to diff
990 * @returns the allocated StatefulDiffCommand (already added via add_command)
992 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
994 /** @return The list of operations that are currently in progress */
995 std::list<GQuark> const & current_operations () {
996 return _current_trans_quarks;
999 bool operation_in_progress (GQuark) const;
1001 void add_commands (std::vector<Command*> const & cmds);
1003 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
1005 // these commands are implemented in libs/ardour/session_command.cc
1006 Command* memento_command_factory(XMLNode* n);
1007 Command* stateful_diff_command_factory (XMLNode *);
1008 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
1012 boost::shared_ptr<IO> click_io() { return _click_io; }
1013 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
1015 /* disk, buffer loads */
1017 uint32_t playback_load ();
1018 uint32_t capture_load ();
1022 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
1023 void request_cancel_play_range ();
1024 bool get_play_range () const { return _play_range; }
1026 void maybe_update_session_range (samplepos_t, samplepos_t);
1029 samplecnt_t preroll_samples (samplepos_t) const;
1031 void request_preroll_record_trim (samplepos_t start, samplecnt_t preroll);
1032 void request_count_in_record ();
1034 samplecnt_t preroll_record_trim_len () const { return _preroll_record_trim_len; }
1036 /* temporary hacks to allow selection to be pushed from GUI into backend.
1037 Whenever we move the selection object into libardour, these will go away.
1039 void set_range_selection (samplepos_t start, samplepos_t end);
1040 void set_object_selection (samplepos_t start, samplepos_t end);
1041 void clear_range_selection ();
1042 void clear_object_selection ();
1044 /* buffers for gain and pan */
1046 gain_t* gain_automation_buffer () const;
1047 gain_t* trim_automation_buffer () const;
1048 gain_t* send_gain_automation_buffer () const;
1049 gain_t* scratch_automation_buffer () const;
1050 pan_t** pan_automation_buffer () const;
1052 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
1056 static int vst_current_loading_id;
1057 static const char* vst_can_do_strings[];
1058 static const int vst_can_do_string_count;
1060 static intptr_t vst_callback (
1069 static PBD::Signal0<void> SendFeedback;
1073 boost::shared_ptr<Speakers> get_speakers ();
1077 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
1079 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
1080 boost::shared_ptr<AutomationControl> automation_control_by_id (const PBD::ID&);
1081 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const ARDOUR::ControllableDescriptor&);
1083 void add_controllable (boost::shared_ptr<PBD::Controllable>);
1084 void remove_controllable (PBD::Controllable*);
1086 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
1088 SessionConfiguration config;
1090 SessionConfiguration* cfg () { return &config; }
1092 bool exporting () const {
1096 bool bounce_processing() const {
1097 return _bounce_processing_active;
1100 /* this is a private enum, but setup_enum_writer() needs it,
1101 and i can't find a way to give that function
1102 friend access. sigh.
1105 enum PostTransportWork {
1106 PostTransportStop = 0x1,
1107 PostTransportDuration = 0x2,
1108 PostTransportLocate = 0x4,
1109 PostTransportRoll = 0x8,
1110 PostTransportAbort = 0x10,
1111 PostTransportOverWrite = 0x20,
1112 PostTransportSpeed = 0x40,
1113 PostTransportAudition = 0x80,
1114 PostTransportReverse = 0x100,
1115 PostTransportInputChange = 0x200,
1116 PostTransportCurveRealloc = 0x400,
1117 PostTransportClearSubstate = 0x800,
1118 PostTransportAdjustPlaybackBuffering = 0x1000,
1119 PostTransportAdjustCaptureBuffering = 0x2000
1128 SlaveState slave_state() const { return _slave_state; }
1129 Slave* slave() const { return _slave; }
1131 boost::shared_ptr<SessionPlaylists> playlists;
1133 void send_mmc_locate (samplepos_t);
1134 void queue_full_time_code () { _send_timecode_update = true; }
1135 void queue_song_position_pointer () { /* currently does nothing */ }
1137 bool step_editing() const { return (_step_editors > 0); }
1139 void request_suspend_timecode_transmission ();
1140 void request_resume_timecode_transmission ();
1141 bool timecode_transmission_suspended () const;
1143 std::vector<std::string> source_search_path(DataType) const;
1144 void ensure_search_path_includes (const std::string& path, DataType type);
1145 void remove_dir_from_search_path (const std::string& path, DataType type);
1147 std::list<std::string> unknown_processors () const;
1149 /** Emitted when a feedback cycle has been detected within Ardour's signal
1150 processing path. Until it is fixed (by the user) some (unspecified)
1151 routes will not be run.
1153 static PBD::Signal0<void> FeedbackDetected;
1155 /** Emitted when a graph sort has successfully completed, which means
1156 that it has no feedback cycles.
1158 static PBD::Signal0<void> SuccessfulGraphSort;
1160 /* handlers can return an integer value:
1161 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1162 to modify the search path and we should try to find it again.
1163 1: quit entire session load
1164 2: as 0, but don't ask about other missing files
1165 3: don't ask about other missing files, and just mark this one missing
1166 -1: just mark this one missing
1167 any other value: as -1
1169 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1171 void set_missing_file_replacement (const std::string& mfr) {
1172 _missing_file_replacement = mfr;
1175 /** Emitted when the session wants Ardour to quit */
1176 static PBD::Signal0<void> Quit;
1178 /** Emitted when Ardour is asked to load a session in an older session
1179 * format, and makes a backup copy.
1181 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1183 SceneChanger* scene_changer() const { return _scene_changer; }
1185 /* asynchronous MIDI control ports */
1187 boost::shared_ptr<Port> midi_input_port () const;
1188 boost::shared_ptr<Port> midi_output_port () const;
1189 boost::shared_ptr<Port> mmc_output_port () const;
1190 boost::shared_ptr<Port> mmc_input_port () const;
1191 boost::shared_ptr<Port> scene_input_port () const;
1192 boost::shared_ptr<Port> scene_output_port () const;
1194 /* synchronous MIDI ports used for synchronization */
1196 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1197 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1198 boost::shared_ptr<MidiPort> mtc_output_port () const;
1199 boost::shared_ptr<MidiPort> mtc_input_port () const;
1200 boost::shared_ptr<Port> ltc_input_port() const;
1201 boost::shared_ptr<Port> ltc_output_port() const;
1203 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1204 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1206 MIDI::MachineControl& mmc() { return *_mmc; }
1208 void reconnect_midi_scene_ports (bool);
1209 void reconnect_mtc_ports ();
1210 void reconnect_mmc_ports (bool);
1212 void reconnect_ltc_input ();
1213 void reconnect_ltc_output ();
1215 VCAManager& vca_manager() { return *_vca_manager; }
1216 VCAManager* vca_manager_ptr() { return _vca_manager; }
1218 void auto_connect_thread_wakeup ();
1222 friend class AudioEngine;
1223 void set_block_size (pframes_t nframes);
1224 void set_sample_rate (samplecnt_t nframes);
1225 #ifdef USE_TRACKS_CODE_FEATURES
1226 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1230 void schedule_curve_reallocation ();
1231 void update_latency_compensation (bool force = false);
1234 int create (const std::string& mix_template, BusProfile*);
1237 static guint _name_id_counter;
1238 static void init_name_id_counter (guint n);
1239 static unsigned int name_id_counter ();
1241 /* stuff used in process() should be close together to
1245 typedef void (Session::*process_function_type)(pframes_t);
1247 AudioEngine& _engine;
1248 mutable gint processing_prohibited;
1249 process_function_type process_function;
1250 process_function_type last_process_function;
1251 bool _bounce_processing_active;
1252 bool waiting_for_sync_offset;
1253 samplecnt_t _base_sample_rate; // sample-rate of the session at creation time, "native" SR
1254 samplecnt_t _nominal_sample_rate; // overridden by audioengine setting
1255 samplecnt_t _current_sample_rate; // this includes video pullup offset
1256 int transport_sub_state;
1257 mutable gint _record_status;
1258 samplepos_t _transport_sample;
1260 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1261 bool _session_range_end_is_free;
1264 samplecnt_t _remaining_latency_preroll;
1266 // varispeed playback
1267 double _engine_speed;
1268 double _transport_speed;
1269 double _default_transport_speed;
1270 double _last_transport_speed;
1271 double _signalled_varispeed;
1272 double _target_transport_speed;
1273 CubicInterpolation interpolation;
1275 bool auto_play_legal;
1276 samplepos_t _last_slave_transport_sample;
1277 samplepos_t _requested_return_sample;
1278 pframes_t current_block_size;
1279 samplecnt_t _worst_output_latency;
1280 samplecnt_t _worst_input_latency;
1281 samplecnt_t _worst_route_latency;
1282 uint32_t _send_latency_changes;
1283 bool _have_captured;
1284 bool _non_soloed_outs_muted;
1286 uint32_t _listen_cnt;
1287 uint32_t _solo_isolated_cnt;
1290 bool _under_nsm_control;
1291 unsigned int _xrun_count;
1293 std::string _missing_file_replacement;
1295 void mtc_status_changed (bool);
1296 PBD::ScopedConnection mtc_status_connection;
1297 void ltc_status_changed (bool);
1298 PBD::ScopedConnection ltc_status_connection;
1300 void initialize_latencies ();
1301 void update_latency (bool playback);
1302 bool update_route_latency (bool reverse, bool apply_to_delayline);
1304 void set_worst_io_latencies ();
1305 void set_worst_output_latency ();
1306 void set_worst_input_latency ();
1308 void send_latency_compensation_change ();
1309 void set_worst_io_latencies_x (IOChange, void *);
1311 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1313 void process_scrub (pframes_t);
1314 void process_without_events (pframes_t);
1315 void process_with_events (pframes_t);
1316 void process_audition (pframes_t);
1317 void process_export (pframes_t);
1318 void process_export_fw (pframes_t);
1320 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1321 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1322 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1324 static const samplecnt_t bounce_chunk_size;
1326 /* slave tracking */
1328 static const int delta_accumulator_size = 25;
1329 int delta_accumulator_cnt;
1330 int32_t delta_accumulator[delta_accumulator_size];
1331 int32_t average_slave_delta;
1333 bool have_first_delta_accumulator;
1335 SlaveState _slave_state;
1338 samplepos_t slave_wait_end;
1340 void reset_slave_state ();
1341 bool follow_slave (pframes_t);
1342 void calculate_moving_average_of_slave_delta (int dir, samplecnt_t this_delta);
1343 void track_slave_state (float slave_speed, samplepos_t slave_transport_sample, samplecnt_t this_delta);
1345 void switch_to_sync_source (SyncSource); /* !RT context */
1346 void drop_sync_source (); /* !RT context */
1347 void use_sync_source (Slave*); /* RT context */
1349 bool post_export_sync;
1350 samplepos_t post_export_position;
1353 bool _export_rolling;
1354 bool _realtime_export;
1355 bool _region_export;
1356 samplepos_t _export_preroll;
1358 boost::shared_ptr<ExportHandler> export_handler;
1359 boost::shared_ptr<ExportStatus> export_status;
1362 int stop_audio_export ();
1363 void finalize_audio_export ();
1364 void finalize_export_internal (bool stop_freewheel);
1365 bool _pre_export_mmc_enabled;
1367 PBD::ScopedConnection export_freewheel_connection;
1369 void get_track_statistics ();
1370 int process_routes (pframes_t, bool& need_butler);
1371 int silent_process_routes (pframes_t, bool& need_butler);
1373 /** @return 1 if there is a pending declick fade-in,
1374 -1 if there is a pending declick fade-out,
1375 0 if there is no pending declick.
1377 int get_transport_declick_required () {
1378 if (transport_sub_state & PendingDeclickIn) {
1379 transport_sub_state &= ~PendingDeclickIn;
1381 } else if (transport_sub_state & PendingDeclickOut) {
1382 /* XXX: not entirely sure why we don't clear this */
1384 } else if (transport_sub_state & PendingLoopDeclickOut) {
1385 /* Return the declick out first ... */
1386 transport_sub_state &= ~PendingLoopDeclickOut;
1388 } else if (transport_sub_state & PendingLoopDeclickIn) {
1389 /* ... then the declick in on the next call */
1390 transport_sub_state &= ~PendingLoopDeclickIn;
1397 bool maybe_stop (samplepos_t limit);
1398 bool maybe_sync_start (pframes_t &);
1400 void check_declick_out ();
1406 /** Number of process samples since the last MTC output (when sending MTC); used to
1407 * know when to send full MTC messages every so often.
1409 pframes_t _pframes_since_last_mtc;
1412 samplepos_t last_loopend;
1414 boost::scoped_ptr<SessionDirectory> _session_dir;
1417 void graph_reordered ();
1419 /** current snapshot name, without the .ardour suffix */
1420 void set_snapshot_name (const std::string &);
1421 void save_snapshot_name (const std::string &);
1422 std::string _current_snapshot_name;
1424 XMLTree* state_tree;
1425 bool state_was_pending;
1426 StateOfTheState _state_of_the_state;
1428 friend class StateProtector;
1429 gint _suspend_save; /* atomic */
1430 volatile bool _save_queued;
1431 Glib::Threads::Mutex save_state_lock;
1432 Glib::Threads::Mutex save_source_lock;
1433 Glib::Threads::Mutex peak_cleanup_lock;
1435 int load_options (const XMLNode&);
1436 int load_state (std::string snapshot_name);
1437 static int parse_stateful_loading_version (const std::string&);
1439 samplepos_t _last_roll_location;
1440 /** the session sample time at which we last rolled, located, or changed transport direction */
1441 samplepos_t _last_roll_or_reversal_location;
1442 samplepos_t _last_record_location;
1444 bool pending_locate_roll;
1445 samplepos_t pending_locate_sample;
1446 bool pending_locate_flush;
1448 bool pending_auto_loop;
1450 PBD::ReallocPool _mempool;
1452 Glib::Threads::Mutex lua_lock;
1453 luabridge::LuaRef * _lua_run;
1454 luabridge::LuaRef * _lua_add;
1455 luabridge::LuaRef * _lua_del;
1456 luabridge::LuaRef * _lua_list;
1457 luabridge::LuaRef * _lua_load;
1458 luabridge::LuaRef * _lua_save;
1459 luabridge::LuaRef * _lua_cleanup;
1460 uint32_t _n_lua_scripts;
1463 void try_run_lua (pframes_t);
1467 static const PostTransportWork ProcessCannotProceedMask =
1469 PostTransportInputChange|
1470 PostTransportReverse|
1471 PostTransportCurveRealloc|
1472 PostTransportAudition|
1474 PostTransportClearSubstate);
1476 gint _post_transport_work; /* accessed only atomic ops */
1477 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1478 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1479 void add_post_transport_work (PostTransportWork ptw);
1481 void schedule_playback_buffering_adjustment ();
1482 void schedule_capture_buffering_adjustment ();
1484 uint32_t cumulative_rf_motion;
1487 void set_rf_speed (float speed);
1488 void reset_rf_scale (samplecnt_t samples_moved);
1490 Locations* _locations;
1491 void location_added (Location*);
1492 void location_removed (Location*);
1493 void locations_changed ();
1494 void _locations_changed (const Locations::LocationList&);
1496 void update_skips (Location*, bool consolidate);
1497 void update_marks (Location* loc);
1498 void consolidate_skips (Location*);
1499 void sync_locations_to_skips ();
1500 void _sync_locations_to_skips ();
1502 PBD::ScopedConnectionList skip_update_connections;
1503 bool _ignore_skips_updates;
1505 PBD::ScopedConnectionList punch_connections;
1506 void auto_punch_start_changed (Location *);
1507 void auto_punch_end_changed (Location *);
1508 void auto_punch_changed (Location *);
1510 PBD::ScopedConnectionList loop_connections;
1511 void auto_loop_changed (Location *);
1512 void auto_loop_declick_range (Location *, samplepos_t &, samplepos_t &);
1514 int ensure_engine (uint32_t desired_sample_rate, bool);
1515 void pre_engine_init (std::string path);
1516 int post_engine_init ();
1517 int immediately_post_engine ();
1518 void remove_empty_sounds ();
1520 void session_loaded ();
1522 void setup_midi_control ();
1523 int midi_read (MIDI::Port *);
1525 void enable_record ();
1527 void increment_transport_position (samplecnt_t val) {
1528 if (max_samplepos - val < _transport_sample) {
1529 _transport_sample = max_samplepos;
1531 _transport_sample += val;
1535 void decrement_transport_position (samplecnt_t val) {
1536 if (val < _transport_sample) {
1537 _transport_sample -= val;
1539 _transport_sample = 0;
1543 void post_transport_motion ();
1544 static void *session_loader_thread (void *arg);
1548 /* Signal Forwarding */
1549 void emit_route_signals ();
1550 void emit_thread_run ();
1551 static void *emit_thread (void *);
1552 void emit_thread_start ();
1553 void emit_thread_terminate ();
1555 pthread_t _rt_emit_thread;
1556 bool _rt_thread_active;
1558 pthread_mutex_t _rt_emit_mutex;
1559 pthread_cond_t _rt_emit_cond;
1560 bool _rt_emit_pending;
1562 /* Auto Connect Thread */
1563 static void *auto_connect_thread (void *);
1564 void auto_connect_thread_run ();
1565 void auto_connect_thread_start ();
1566 void auto_connect_thread_terminate ();
1568 pthread_t _auto_connect_thread;
1569 gint _ac_thread_active;
1570 pthread_mutex_t _auto_connect_mutex;
1571 pthread_cond_t _auto_connect_cond;
1573 struct AutoConnectRequest {
1575 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1576 const ChanCount& is,
1577 const ChanCount& os,
1578 const ChanCount& io,
1579 const ChanCount& oo)
1580 : route (boost::weak_ptr<Route> (r))
1581 , connect_inputs (ci)
1585 , output_offset (oo)
1588 boost::weak_ptr <Route> route;
1589 bool connect_inputs;
1590 ChanCount input_start;
1591 ChanCount output_start;
1592 ChanCount input_offset;
1593 ChanCount output_offset;
1596 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1597 Glib::Threads::Mutex _auto_connect_queue_lock;
1598 AutoConnectQueue _auto_connect_queue;
1599 guint _latency_recompute_pending;
1601 void get_physical_ports (std::vector<std::string>& inputs, std::vector<std::string>& outputs, DataType type,
1602 MidiPortFlags include = MidiPortFlags (0),
1603 MidiPortFlags exclude = MidiPortFlags (0));
1605 void auto_connect (const AutoConnectRequest&);
1606 void queue_latency_recompute ();
1608 /* SessionEventManager interface */
1610 void process_event (SessionEvent*);
1611 void set_next_event ();
1612 void cleanup_event (SessionEvent*,int);
1614 /* MIDI Machine Control */
1617 void spp_continue ();
1620 void mmc_deferred_play (MIDI::MachineControl &);
1621 void mmc_stop (MIDI::MachineControl &);
1622 void mmc_step (MIDI::MachineControl &, int);
1623 void mmc_pause (MIDI::MachineControl &);
1624 void mmc_record_pause (MIDI::MachineControl &);
1625 void mmc_record_strobe (MIDI::MachineControl &);
1626 void mmc_record_exit (MIDI::MachineControl &);
1627 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1628 void mmc_fast_forward (MIDI::MachineControl &);
1629 void mmc_rewind (MIDI::MachineControl &);
1630 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1631 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1632 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1634 struct timeval last_mmc_step;
1637 typedef boost::function<bool()> MidiTimeoutCallback;
1638 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1640 MidiTimeoutList midi_timeouts;
1641 bool mmc_step_timeout ();
1642 void send_immediate_mmc (MIDI::MachineControlCommand);
1644 MIDI::byte mtc_msg[16];
1645 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1646 MIDI::byte midi_msg[16];
1647 double outbound_mtc_timecode_frame;
1648 Timecode::Time transmitting_timecode_time;
1649 int next_quarter_frame_to_send;
1651 double _samples_per_timecode_frame; /* has to be floating point because of drop sample */
1652 samplecnt_t _frames_per_hour;
1653 samplecnt_t _timecode_frames_per_hour;
1655 /* cache the most-recently requested time conversions. This helps when we
1656 * have multiple clocks showing the same time (e.g. the transport sample) */
1657 bool last_timecode_valid;
1658 samplepos_t last_timecode_when;
1659 Timecode::Time last_timecode;
1661 bool _send_timecode_update; ///< Flag to send a full sample (Timecode) MTC message this cycle
1663 int send_midi_time_code_for_cycle (samplepos_t, samplepos_t, pframes_t nframes);
1665 LTCEncoder* ltc_encoder;
1666 ltcsnd_sample_t* ltc_enc_buf;
1668 Timecode::TimecodeFormat ltc_enc_tcformat;
1669 int32_t ltc_buf_off;
1670 int32_t ltc_buf_len;
1673 int32_t ltc_enc_byte;
1674 samplepos_t ltc_enc_pos;
1676 samplepos_t ltc_enc_off;
1678 samplepos_t ltc_prev_cycle;
1680 samplepos_t ltc_timecode_offset;
1681 bool ltc_timecode_negative_offset;
1683 LatencyRange ltc_out_latency;
1685 void ltc_tx_initialize();
1686 void ltc_tx_cleanup();
1687 void ltc_tx_reset();
1688 void ltc_tx_resync_latency();
1689 void ltc_tx_recalculate_position();
1690 void ltc_tx_parse_offset();
1691 void ltc_tx_send_time_code_for_cycle (samplepos_t, samplepos_t, double, double, pframes_t nframes);
1692 PBD::ScopedConnectionList ltc_tx_connections;
1695 void reset_record_status ();
1697 int no_roll (pframes_t nframes);
1698 int fail_roll (pframes_t nframes);
1700 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1701 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1703 MidiControlUI* midi_control_ui;
1705 int start_midi_thread ();
1707 void set_play_loop (bool yn, double speed);
1708 void unset_play_loop ();
1709 void overwrite_some_buffers (Track *);
1710 void flush_all_inserts ();
1711 int micro_locate (samplecnt_t distance);
1712 void locate (samplepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1713 void start_locate (samplepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1714 void force_locate (samplepos_t sample, bool with_roll = false);
1715 void set_transport_speed (double speed, samplepos_t destination_sample, bool abort = false, bool clear_state = false, bool as_default = false);
1716 void stop_transport (bool abort = false, bool clear_state = false);
1717 void start_transport ();
1718 void realtime_stop (bool abort, bool clear_state);
1719 void realtime_locate ();
1720 void non_realtime_start_scrub ();
1721 void non_realtime_set_speed ();
1722 void non_realtime_locate ();
1723 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1724 void non_realtime_overwrite (int entry_request_count, bool& finished);
1725 void post_transport ();
1726 void engine_halted ();
1727 void xrun_recovery ();
1728 void set_track_loop (bool);
1729 bool select_playhead_priority_target (samplepos_t&);
1730 void follow_playhead_priority ();
1732 /* These are synchronous and so can only be called from within the process
1736 int send_full_time_code (samplepos_t, pframes_t nframes);
1737 void send_song_position_pointer (samplepos_t);
1739 TempoMap *_tempo_map;
1740 void tempo_map_changed (const PBD::PropertyChange&);
1742 /* edit/mix groups */
1744 int load_route_groups (const XMLNode&, int);
1746 std::list<RouteGroup *> _route_groups;
1747 RouteGroup* _all_route_group;
1751 boost::shared_ptr<Graph> _process_graph;
1753 SerializedRCUManager<RouteList> routes;
1755 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save, PresentationInfo::order_t);
1756 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect, PresentationInfo::order_t);
1757 bool _adding_routes_in_progress;
1758 bool _reconnecting_routes_in_progress;
1759 bool _route_deletion_in_progress;
1761 uint32_t destructive_index;
1763 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1764 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1765 boost::shared_ptr<Route> XMLRouteFactory_3X (const XMLNode&, int);
1767 void route_processors_changed (RouteProcessorChange);
1769 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1770 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1771 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1772 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1774 /* track numbering */
1776 void reassign_track_numbers ();
1777 uint32_t _track_number_decimals;
1779 /* solo/mute/notifications */
1781 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1782 void route_mute_changed ();
1783 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1784 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1786 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1788 void listen_position_changed ();
1789 void solo_control_mode_changed ();
1791 /* REGION MANAGEMENT */
1793 mutable Glib::Threads::Mutex region_lock;
1795 int load_regions (const XMLNode& node);
1796 int load_compounds (const XMLNode& node);
1798 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1799 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1800 void route_group_property_changed (RouteGroup *);
1804 mutable Glib::Threads::Mutex source_lock;
1807 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1810 void reset_write_sources (bool mark_write_complete, bool force = false);
1813 int load_sources (const XMLNode& node);
1814 XMLNode& get_sources_as_xml ();
1816 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1820 void remove_playlist (boost::weak_ptr<Playlist>);
1821 void track_playlist_changed (boost::weak_ptr<Track>);
1822 void playlist_region_added (boost::weak_ptr<Region>);
1823 void playlist_ranges_moved (std::list<Evoral::RangeMove<samplepos_t> > const &);
1824 void playlist_regions_extended (std::list<Evoral::Range<samplepos_t> > const &);
1826 /* CURVES and AUTOMATION LISTS */
1827 std::map<PBD::ID, AutomationList*> automation_lists;
1829 /* DEFAULT FADE CURVES */
1831 float default_fade_steepness;
1832 float default_fade_msecs;
1836 boost::shared_ptr<Auditioner> auditioner;
1837 void set_audition (boost::shared_ptr<Region>);
1838 void non_realtime_set_audition ();
1839 boost::shared_ptr<Region> pending_audition_region;
1845 int flatten_one_track (AudioTrack&, samplepos_t start, samplecnt_t cnt);
1847 /* INSERT AND SEND MANAGEMENT */
1849 boost::dynamic_bitset<uint32_t> send_bitset;
1850 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1851 boost::dynamic_bitset<uint32_t> return_bitset;
1852 boost::dynamic_bitset<uint32_t> insert_bitset;
1856 struct space_and_path {
1857 uint32_t blocks; ///< 4kB blocks
1858 bool blocks_unknown; ///< true if blocks is unknown
1863 , blocks_unknown (true)
1867 struct space_and_path_ascending_cmp {
1868 bool operator() (space_and_path a, space_and_path b) {
1869 if (a.blocks_unknown != b.blocks_unknown) {
1870 return !a.blocks_unknown;
1872 return a.blocks > b.blocks;
1876 void setup_raid_path (std::string path);
1878 std::vector<space_and_path> session_dirs;
1879 std::vector<space_and_path>::iterator last_rr_session_dir;
1880 uint32_t _total_free_4k_blocks;
1881 /** If this is true, _total_free_4k_blocks is not definite,
1882 as one or more of the session directories' filesystems
1883 could not report free space.
1885 bool _total_free_4k_blocks_uncertain;
1886 Glib::Threads::Mutex space_lock;
1888 bool no_questions_about_missing_files;
1890 std::string get_best_session_directory_for_new_audio ();
1892 mutable gint _playback_load;
1893 mutable gint _capture_load;
1897 SerializedRCUManager<BundleList> _bundles;
1898 XMLNode* _bundle_xml_node;
1899 int load_bundles (XMLNode const &);
1901 UndoHistory _history;
1902 /** current undo transaction, or 0 */
1903 UndoTransaction* _current_trans;
1904 /** GQuarks to describe the reversible commands that are currently in progress.
1905 * These may be nested, in which case more recently-started commands are toward
1906 * the front of the list.
1908 std::list<GQuark> _current_trans_quarks;
1910 int backend_sync_callback (TransportState, samplepos_t);
1912 void process_rtop (SessionEvent*);
1920 XMLNode& state (bool save_template,
1921 snapshot_t snapshot_type = NormalSave,
1922 bool only_used_assets = false);
1924 XMLNode& get_state ();
1925 int set_state (const XMLNode& node, int version); // not idempotent
1926 XMLNode& get_template ();
1929 typedef std::list<Click*> Clicks;
1932 bool _click_rec_only;
1933 boost::shared_ptr<IO> _click_io;
1934 boost::shared_ptr<Amp> _click_gain;
1936 Sample* click_emphasis_data;
1937 samplecnt_t click_length;
1938 samplecnt_t click_emphasis_length;
1939 mutable Glib::Threads::RWLock click_lock;
1941 static const Sample default_click[];
1942 static const samplecnt_t default_click_length;
1943 static const Sample default_click_emphasis[];
1944 static const samplecnt_t default_click_emphasis_length;
1947 samplepos_t _clicks_cleared;
1948 void setup_click_sounds (int which);
1949 void setup_click_sounds (Sample**, Sample const *, samplecnt_t*, samplecnt_t, std::string const &);
1950 void clear_clicks ();
1951 void click (samplepos_t start, samplecnt_t nframes);
1952 void run_click (samplepos_t start, samplecnt_t nframes);
1953 void add_click (samplepos_t pos, bool emphasis);
1954 samplecnt_t _count_in_samples;
1956 /* range playback */
1958 std::list<AudioRange> current_audio_range;
1960 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1961 void unset_play_range ();
1963 /* temporary hacks to allow selection to be pushed from GUI into backend
1964 Whenever we move the selection object into libardour, these will go away.
1966 Evoral::Range<samplepos_t> _range_selection;
1967 Evoral::Range<samplepos_t> _object_selection;
1969 void unset_preroll_record_trim ();
1971 samplecnt_t _preroll_record_trim_len;
1972 bool _count_in_once;
1977 boost::shared_ptr<Route> _master_out;
1978 boost::shared_ptr<Route> _monitor_out;
1980 void auto_connect_master_bus ();
1982 int find_all_sources (std::string path, std::set<std::string>& result);
1983 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1985 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1986 Glib::Threads::Mutex controllables_lock;
1987 Controllables controllables;
1989 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1991 void reset_native_file_format();
1992 bool first_file_data_format_reset;
1993 bool first_file_header_format_reset;
1995 void config_changed (std::string, bool);
1997 XMLNode& get_control_protocol_state ();
1999 void set_history_depth (uint32_t depth);
2001 static bool _disable_all_loaded_plugins;
2002 static bool _bypass_all_loaded_plugins;
2004 mutable bool have_looped; ///< Used in ::audible_sample(*)
2006 void update_route_record_state ();
2007 gint _have_rec_enabled_track;
2008 gint _have_rec_disabled_track;
2010 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
2012 /* realtime "apply to set of routes" operations */
2013 template<typename T> SessionEvent*
2014 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
2015 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
2016 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2017 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
2018 ev->rt_return = after;
2019 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2024 /* specialized version realtime "apply to set of routes" operations */
2025 template<typename T1, typename T2> SessionEvent*
2026 get_rt_event (boost::shared_ptr<RouteList> rl, T1 t1arg, T2 t2arg, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
2027 void (Session::*method) (boost::shared_ptr<RouteList>, T1, T2, PBD::Controllable::GroupControlDisposition)) {
2028 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2029 ev->rt_slot = boost::bind (method, this, rl, t1arg, t2arg, group_override);
2030 ev->rt_return = after;
2031 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2036 /* specialized version realtime "apply to set of controls" operations */
2037 SessionEvent* get_rt_event (boost::shared_ptr<ControlList> cl, double arg, PBD::Controllable::GroupControlDisposition group_override) {
2038 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2039 ev->rt_slot = boost::bind (&Session::rt_set_controls, this, cl, arg, group_override);
2040 ev->rt_return = Session::rt_cleanup;
2041 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2046 void rt_set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition group_override);
2047 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
2049 void set_session_range_location (samplepos_t, samplepos_t);
2051 void setup_midi_machine_control ();
2053 void step_edit_status_change (bool);
2054 uint32_t _step_editors;
2056 /** true if timecode transmission by the transport is suspended, otherwise false */
2057 mutable gint _suspend_timecode_transmission;
2059 void update_locations_after_tempo_map_change (const Locations::LocationList &);
2061 void start_time_changed (samplepos_t);
2062 void end_time_changed (samplepos_t);
2064 void set_track_monitor_input_status (bool);
2065 samplepos_t compute_stop_limit () const;
2067 boost::shared_ptr<Speakers> _speakers;
2068 void load_nested_sources (const XMLNode& node);
2070 /** The directed graph of routes that is currently being used for audio processing
2071 and solo/mute computations.
2073 GraphEdges _current_route_graph;
2075 void ensure_route_presentation_info_gap (PresentationInfo::order_t, uint32_t gap_size);
2077 friend class ProcessorChangeBlocker;
2078 gint _ignore_route_processor_changes; /* atomic */
2080 MidiClockTicker* midi_clock;
2082 boost::shared_ptr<IO> _ltc_input;
2083 boost::shared_ptr<IO> _ltc_output;
2085 boost::shared_ptr<RTTaskList> _rt_tasklist;
2087 /* Scene Changing */
2088 SceneChanger* _scene_changer;
2090 /* persistent, non-track related MIDI ports */
2091 MidiPortManager* _midi_ports;
2092 MIDI::MachineControl* _mmc;
2095 void setup_click ();
2096 void setup_click_state (const XMLNode*);
2097 void setup_bundles ();
2099 void save_as_bring_callback (uint32_t, uint32_t, std::string);
2101 static const uint32_t session_end_shift;
2103 std::string _template_state_dir;
2105 VCAManager* _vca_manager;
2107 boost::shared_ptr<Route> get_midi_nth_route_by_id (PresentationInfo::order_t n) const;
2109 std::string created_with;
2111 void midi_track_presentation_info_changed (PBD::PropertyChange const &, boost::weak_ptr<MidiTrack>);
2112 void rewire_selected_midi (boost::shared_ptr<MidiTrack>);
2113 void rewire_midi_selection_ports ();
2114 boost::weak_ptr<MidiTrack> current_midi_target;
2116 CoreSelection* _selection;
2118 bool _global_locate_pending;
2122 } // namespace ARDOUR
2124 #endif /* __ardour_session_h__ */