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;
125 class MidiClockTicker;
127 class MidiPortManager;
147 class SessionDirectory;
148 class SessionMetadata;
149 class SessionPlaylists;
156 class WindowsVSTPlugin;
158 extern void setup_enum_writer ();
160 class LIBARDOUR_API SessionException: public std::exception {
162 explicit SessionException(const std::string msg) : _message(msg) {}
163 virtual ~SessionException() throw() {}
165 virtual const char* what() const throw() { return _message.c_str(); }
168 std::string _message;
171 /** Ardour Session */
172 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
176 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
177 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
178 StopPendingCapture = 0x4,
179 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
180 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
181 PendingLocate = 0x20,
191 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
192 the bus profile can be null if no master out bus is required.
195 Session (AudioEngine&,
196 const std::string& fullpath,
197 const std::string& snapshot_name,
198 BusProfile* bus_profile = 0,
199 std::string mix_template = "");
203 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format, std::string& program_version);
204 static std::string get_snapshot_from_instant (const std::string& session_dir);
206 /** a monotonic counter used for naming user-visible things uniquely
207 * (curently the sidechain port).
208 * Use sparingly to keep the numbers low, prefer PBD::ID for all
209 * internal, not user-visible IDs */
210 static unsigned int next_name_id ();
212 std::string path() const { return _path; }
213 std::string name() const { return _name; }
214 std::string snap_name() const { return _current_snapshot_name; }
215 std::string raid_path () const;
216 bool path_is_within_session (const std::string&);
218 bool writable() const { return _writable; }
221 bool dirty() const { return _state_of_the_state & Dirty; }
222 void set_deletion_in_progress ();
223 void clear_deletion_in_progress ();
224 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
225 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
226 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
227 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
228 bool loading () const { return _state_of_the_state & Loading; }
230 PBD::Signal0<void> DirtyChanged;
232 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
234 static PBD::Signal1<void,std::string> Dialog;
236 PBD::Signal0<void> BatchUpdateStart;
237 PBD::Signal0<void> BatchUpdateEnd;
239 int ensure_subdirs ();
241 std::string automation_dir () const; ///< Automation data
242 std::string analysis_dir () const; ///< Analysis data
243 std::string plugins_dir () const; ///< Plugin state
244 std::string externals_dir () const; ///< Links to external files
246 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
248 bool audio_source_name_is_unique (const std::string& name);
249 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);
250 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
251 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
252 std::string new_midi_source_path (const std::string&, bool need_source_lock = true);
253 /** create a new track or bus from a template (XML path)
254 * @param how_many how many tracks or busses to create
255 * @param template_path path to xml template file
256 * @param name name (prefix) of the route to create
257 * @param pd Playlist disposition
258 * @return list of newly created routes
260 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);
261 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
262 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path,
263 uint32_t channels, std::vector<std::string> const & smf_track_names);
265 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
267 void process (pframes_t nframes);
269 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
270 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
271 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
272 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
273 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
275 bool have_rec_enabled_track () const;
276 bool have_rec_disabled_track () const;
278 bool have_captured() const { return _have_captured; }
280 void refill_all_track_buffers ();
281 Butler* butler() { return _butler; }
282 void butler_transport_work ();
284 void refresh_disk_space ();
286 int load_diskstreams_2X (XMLNode const &, int);
288 int load_routes (const XMLNode&, int);
289 boost::shared_ptr<RouteList> get_routes() const {
290 return routes.reader ();
293 CoreSelection& selection () { return *_selection; }
295 /* because the set of Stripables consists of objects managed
296 * independently, in multiple containers within the Session (or objects
297 * owned by the session), we fill out a list in-place rather than
298 * return a pointer to a copy of the (RCU) managed list, as happens
302 void get_stripables (StripableList&) const;
303 StripableList get_stripables () const;
304 boost::shared_ptr<RouteList> get_tracks() const;
305 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
306 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
308 uint32_t nstripables (bool with_monitor = false) const;
309 uint32_t nroutes() const { return routes.reader()->size(); }
310 uint32_t ntracks () const;
311 uint32_t nbusses () const;
313 boost::shared_ptr<BundleList> bundles () {
314 return _bundles.reader ();
317 void notify_presentation_info_change ();
319 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
320 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
321 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
323 static char session_name_is_legal (const std::string&);
324 bool io_name_is_legal (const std::string&) const;
325 boost::shared_ptr<Route> route_by_name (std::string) const;
326 boost::shared_ptr<Route> route_by_id (PBD::ID) const;
327 boost::shared_ptr<Stripable> stripable_by_id (PBD::ID) const;
328 boost::shared_ptr<Stripable> get_remote_nth_stripable (PresentationInfo::order_t n, PresentationInfo::Flag) const;
329 boost::shared_ptr<Route> get_remote_nth_route (PresentationInfo::order_t n) const;
330 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt) const;
331 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID) 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,framepos_t> PositionChanged; /* sent after any non-sequential motion */
393 PBD::Signal1<void,framepos_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 (framepos_t start, framepos_t return_to);
422 void request_bounded_roll (framepos_t start, framepos_t end);
423 void request_stop (bool abort = false, bool clear_state = false);
424 void request_locate (framepos_t frame, 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 framepos_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 (Track *);
437 void adjust_playback_buffering();
438 void adjust_capture_buffering();
439 void request_track_speed (Track *, double speed);
440 void request_input_change_handling ();
442 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
443 bool declick_out_pending() const { return static_cast<bool>(transport_sub_state&(PendingDeclickOut)); }
444 bool transport_locked () const;
448 framepos_t current_end_frame () const;
449 framepos_t current_start_frame () const;
450 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
451 framecnt_t frame_rate () const { return _current_frame_rate; }
452 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
453 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
454 framecnt_t frames_per_hour () const { return _frames_per_hour; }
456 double samples_per_timecode_frame() const { return _samples_per_timecode_frame; }
457 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
459 MIDI::byte get_mtc_timecode_bits() const {
460 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
463 double timecode_frames_per_second() const;
464 bool timecode_drop_frames() const;
468 Locations *locations() { return _locations; }
470 PBD::Signal1<void,Location*> auto_loop_location_changed;
471 PBD::Signal1<void,Location*> auto_punch_location_changed;
472 PBD::Signal0<void> locations_modified;
474 void set_auto_punch_location (Location *);
475 void set_auto_loop_location (Location *);
476 void set_session_extents (framepos_t start, framepos_t end);
477 bool end_is_free () const { return _session_range_end_is_free; }
478 void set_end_is_free (bool);
479 int location_name(std::string& result, std::string base = std::string(""));
481 pframes_t get_block_size() const { return current_block_size; }
482 framecnt_t worst_output_latency () const { return _worst_output_latency; }
483 framecnt_t worst_input_latency () const { return _worst_input_latency; }
484 framecnt_t worst_track_latency () const { return _worst_track_latency; }
485 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
488 std::string new_parent_folder; /* parent folder where new session folder will be created */
489 std::string new_name; /* name of newly saved session */
490 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
491 bool include_media; /* true if the newly saved session should contain references to media */
492 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
493 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
495 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
497 /* emitted as we make progress. 3 arguments passed to signal
500 * 1: percentage complete measured as a fraction (0-1.0) of
501 * total data copying done.
502 * 2: number of files copied so far
503 * 3: total number of files to copy
505 * Handler should return true for save-as to continue, or false
506 * to stop (and remove all evidence of partial save-as).
508 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
510 /* if save_as() returns non-zero, this string will indicate the reason why.
512 std::string failure_message;
515 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, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
531 int archive_session (const std::string&, const std::string&, ArchiveEncode compress_audio = FLAC_16BIT, bool only_used_sources = false, Progress* p = 0);
533 int restore_state (std::string snapshot_name);
534 int save_template (const std::string& template_name, const std::string& description = "", bool replace_existing = false);
535 int save_history (std::string snapshot_name = "");
536 int restore_history (std::string snapshot_name);
537 void remove_state (std::string snapshot_name);
538 void rename_state (std::string old_name, std::string new_name);
539 void remove_pending_capture_state ();
540 int rename (const std::string&);
541 bool get_nsm_state () const { return _under_nsm_control; }
542 void set_nsm_state (bool state) { _under_nsm_control = state; }
543 bool save_default_options ();
545 PBD::Signal1<void,std::string> StateSaved;
546 PBD::Signal0<void> StateReady;
548 /* emitted when session needs to be saved due to some internal
549 * event or condition (i.e. not in response to a user request).
551 * Only one object should
552 * connect to this signal and take responsibility.
554 * Argument is the snapshot name to use when saving.
556 PBD::Signal1<void,std::string> SaveSessionRequested;
558 /* emitted during a session save to allow other entities to add state, via
559 * extra XML, to the session state
561 PBD::Signal0<void> SessionSaveUnderway;
563 std::vector<std::string> possible_states() const;
564 static std::vector<std::string> possible_states (std::string path);
566 XMLNode& get_state();
567 int set_state(const XMLNode& node, int version); // not idempotent
568 XMLNode& get_template();
569 bool export_track_state (boost::shared_ptr<RouteList> rl, const std::string& path);
571 /// The instant xml file is written to the session directory
572 void add_instant_xml (XMLNode&, bool write_to_config = true);
573 XMLNode* instant_xml (const std::string& str);
575 enum StateOfTheState {
580 InitialConnecting = 0x8,
586 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
588 class StateProtector {
590 StateProtector (Session* s) : _session (s) {
591 g_atomic_int_inc (&s->_suspend_save);
594 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
595 while (_session->_save_queued) {
596 _session->_save_queued = false;
597 _session->save_state ("");
605 class ProcessorChangeBlocker {
607 ProcessorChangeBlocker (Session* s, bool rc = true)
609 , _reconfigure_on_delete (rc)
611 g_atomic_int_inc (&s->_ignore_route_processor_changes);
613 ~ProcessorChangeBlocker () {
614 if (g_atomic_int_dec_and_test (&_session->_ignore_route_processor_changes)) {
615 if (_reconfigure_on_delete) {
616 _session->route_processors_changed (RouteProcessorChange ());
622 bool _reconfigure_on_delete;
625 RouteGroup* new_route_group (const std::string&);
626 void add_route_group (RouteGroup *);
627 void remove_route_group (RouteGroup* rg) { if (rg) remove_route_group (*rg); }
628 void remove_route_group (RouteGroup&);
629 void reorder_route_groups (std::list<RouteGroup*>);
631 RouteGroup* route_group_by_name (std::string);
632 RouteGroup& all_route_group() const;
634 PBD::Signal1<void,RouteGroup*> route_group_added;
635 PBD::Signal0<void> route_group_removed;
636 PBD::Signal0<void> route_groups_reordered;
638 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
639 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
644 std::list<RouteGroup*> const & route_groups () const {
645 return _route_groups;
648 /* fundamental operations. duh. */
650 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
653 RouteGroup* route_group,
655 std::string name_template,
656 PresentationInfo::order_t order,
657 TrackMode mode = Normal
660 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
661 const ChanCount& input, const ChanCount& output, bool strict_io,
662 boost::shared_ptr<PluginInfo> instrument,
663 Plugin::PresetRecord* pset,
664 RouteGroup* route_group, uint32_t how_many, std::string name_template,
665 PresentationInfo::order_t,
666 TrackMode mode = Normal
669 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);
670 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);
672 void remove_routes (boost::shared_ptr<RouteList>);
673 void remove_route (boost::shared_ptr<Route>);
675 void resort_routes ();
676 void resort_routes_using (boost::shared_ptr<RouteList>);
678 AudioEngine & engine() { return _engine; }
679 AudioEngine const & engine () const { return _engine; }
681 static std::string default_track_name_pattern (DataType);
685 framepos_t transport_frame () const {return _transport_frame; }
686 framepos_t record_location () const {return _last_record_location; }
687 framepos_t audible_frame (bool* latent_locate = NULL) const;
688 framepos_t requested_return_frame() const { return _requested_return_frame; }
689 void set_requested_return_frame(framepos_t return_to);
703 void sync_time_vars();
705 void bbt_time (framepos_t when, Timecode::BBT_Time&);
706 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
707 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
708 void timecode_time (Timecode::Time &);
709 void timecode_time (framepos_t when, Timecode::Time&);
710 void timecode_time_subframes (framepos_t when, Timecode::Time&);
712 void timecode_duration (framecnt_t, Timecode::Time&) const;
713 void timecode_duration_string (char *, size_t len, framecnt_t) const;
715 framecnt_t convert_to_frames (AnyTime const & position);
716 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
718 static PBD::Signal1<void, framepos_t> StartTimeChanged;
719 static PBD::Signal1<void, framepos_t> EndTimeChanged;
721 void request_sync_source (Slave*);
722 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
723 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
724 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
726 double transport_speed() const { return _count_in_samples > 0 ? 0. : _transport_speed; }
727 bool transport_stopped() const { return _transport_speed == 0.0; }
728 bool transport_rolling() const { return _transport_speed != 0.0 && _count_in_samples == 0; }
730 bool silent () { return _silent; }
732 TempoMap& tempo_map() { return *_tempo_map; }
733 const TempoMap& tempo_map() const { return *_tempo_map; }
735 unsigned int get_xrun_count () const {return _xrun_count; }
736 void reset_xrun_count () {_xrun_count = 0; }
740 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
742 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
743 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
744 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
746 /* source management */
748 void import_files (ImportStatus&);
749 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
750 std::string build_tmp_convert_name (std::string file);
752 boost::shared_ptr<ExportHandler> get_export_handler ();
753 boost::shared_ptr<ExportStatus> get_export_status ();
755 int start_audio_export (framepos_t position, bool realtime = false, bool region_export = false, bool comensate_master_latency = false);
757 PBD::Signal1<int, framecnt_t> ProcessExport;
758 static PBD::Signal2<void,std::string, std::string> Exported;
760 void add_source (boost::shared_ptr<Source>);
761 void remove_source (boost::weak_ptr<Source>);
763 void cleanup_regions();
764 bool can_cleanup_peakfiles () const;
765 int cleanup_peakfiles ();
766 int cleanup_sources (CleanupReport&);
767 int cleanup_trash_sources (CleanupReport&);
769 int destroy_sources (std::list<boost::shared_ptr<Source> >);
771 int remove_last_capture ();
773 /** handlers should return 0 for "everything OK", and any other value for
774 * "cannot setup audioengine".
776 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
778 /** handlers should return -1 for "stop cleanup",
779 0 for "yes, delete this playlist",
780 1 for "no, don't delete this playlist".
782 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
784 /** handlers should return 0 for "ignore the rate mismatch",
785 !0 for "do not use this session"
787 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
789 /** non interactive message */
790 static PBD::Signal2<void, framecnt_t, framecnt_t> NotifyAboutSampleRateMismatch;
792 /** handlers should return !0 for use pending state, 0 for ignore it.
794 static PBD::Signal0<int> AskAboutPendingState;
796 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
797 size_t, std::string const &, uint32_t, bool destructive);
799 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
800 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
802 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
803 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
804 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&, bool need_source_lock) const;
805 uint32_t count_sources_by_origin (const std::string&);
807 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
809 /* Curves and AutomationLists (TODO when they go away) */
810 void add_automation_list(AutomationList*);
814 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
815 void audition_playlist ();
816 void audition_region (boost::shared_ptr<Region>);
817 void cancel_audition ();
818 bool is_auditioning () const;
820 PBD::Signal1<void,bool> AuditionActive;
823 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
824 void unregister_lua_function (const std::string& name);
825 std::vector<std::string> registered_lua_functions ();
826 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
827 void scripts_changed (); // called from lua, updates _n_lua_scripts
829 PBD::Signal0<void> LuaScriptsChanged;
831 /* flattening stuff */
833 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
834 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
835 boost::shared_ptr<Processor> endpoint,
836 bool include_endpoint, bool for_export, bool for_freeze);
837 int freeze_all (InterThreadInfo&);
839 /* session-wide solo/mute/rec-enable */
842 std::vector<boost::weak_ptr<AutomationControl> > cancel_all_mute ();
844 bool soloing() const { return _non_soloed_outs_muted; }
845 bool listening() const { return _listen_cnt > 0; }
846 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
847 void cancel_all_solo ();
849 static const SessionEvent::RTeventCallback rt_cleanup;
851 void clear_all_solo_state (boost::shared_ptr<RouteList>);
853 /* Control-based methods */
855 void set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition);
856 void set_control (boost::shared_ptr<AutomationControl>, double val, PBD::Controllable::GroupControlDisposition);
858 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
860 PBD::Signal1<void,bool> SoloActive;
861 PBD::Signal0<void> SoloChanged;
862 PBD::Signal0<void> MuteChanged;
863 PBD::Signal0<void> IsolatedChanged;
864 PBD::Signal0<void> MonitorChanged;
866 PBD::Signal0<void> session_routes_reconnected;
868 /* monitor/master out */
869 int add_master_bus (ChanCount const&);
871 void add_monitor_section ();
872 void reset_monitor_section ();
873 void remove_monitor_section ();
874 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
876 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
877 boost::shared_ptr<Route> master_out() const { return _master_out; }
879 PresentationInfo::order_t master_order_key () const { return _master_out ? _master_out->presentation_info ().order () : -1; }
880 bool ensure_stripable_sort_order ();
882 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
883 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
884 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
885 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
886 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
887 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
888 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
890 static void set_disable_all_loaded_plugins (bool yn) {
891 _disable_all_loaded_plugins = yn;
893 static bool get_disable_all_loaded_plugins() {
894 return _disable_all_loaded_plugins;
896 static void set_bypass_all_loaded_plugins (bool yn) {
897 _bypass_all_loaded_plugins = yn;
899 static bool get_bypass_all_loaded_plugins() {
900 return _bypass_all_loaded_plugins;
903 uint32_t next_send_id();
904 uint32_t next_aux_send_id();
905 uint32_t next_return_id();
906 uint32_t next_insert_id();
907 void mark_send_id (uint32_t);
908 void mark_aux_send_id (uint32_t);
909 void mark_return_id (uint32_t);
910 void mark_insert_id (uint32_t);
911 void unmark_send_id (uint32_t);
912 void unmark_aux_send_id (uint32_t);
913 void unmark_return_id (uint32_t);
914 void unmark_insert_id (uint32_t);
916 /* s/w "RAID" management */
918 boost::optional<framecnt_t> available_capture_duration();
922 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
923 void remove_bundle (boost::shared_ptr<Bundle>);
924 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
926 PBD::Signal0<void> BundleAddedOrRemoved;
930 /* History (for editors, mixers, UIs etc.) */
932 /** Undo some transactions.
933 * @param n Number of transactions to undo.
935 void undo (uint32_t n);
936 /** Redo some transactions.
937 * @param n Number of transactions to undo.
939 void redo (uint32_t n);
941 UndoHistory& history() { return _history; }
943 uint32_t undo_depth() const { return _history.undo_depth(); }
944 uint32_t redo_depth() const { return _history.redo_depth(); }
945 std::string next_undo() const { return _history.next_undo(); }
946 std::string next_redo() const { return _history.next_redo(); }
948 /** begin collecting undo information
950 * This call must always be followed by either
951 * begin_reversible_command() or commit_reversible_command()
953 * @param cmd_name human readable name for the undo operation
955 void begin_reversible_command (const std::string& cmd_name);
956 void begin_reversible_command (GQuark);
957 /** abort an open undo command
958 * This must only be called after begin_reversible_command ()
960 void abort_reversible_command ();
961 /** finalize an undo command and commit pending transactions
963 * This must only be called after begin_reversible_command ()
964 * @param cmd (additional) command to add
966 void commit_reversible_command (Command* cmd = 0);
968 void add_command (Command *const cmd);
970 /** create an StatefulDiffCommand from the given object and add it to the stack.
972 * This function must only be called after begin_reversible_command.
973 * Failing to do so may lead to a crash.
975 * @param sfd the object to diff
976 * @returns the allocated StatefulDiffCommand (already added via add_command)
978 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
980 /** @return The list of operations that are currently in progress */
981 std::list<GQuark> const & current_operations () {
982 return _current_trans_quarks;
985 bool operation_in_progress (GQuark) const;
987 void add_commands (std::vector<Command*> const & cmds);
989 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
991 // these commands are implemented in libs/ardour/session_command.cc
992 Command* memento_command_factory(XMLNode* n);
993 Command* stateful_diff_command_factory (XMLNode *);
994 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
998 boost::shared_ptr<IO> click_io() { return _click_io; }
999 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
1001 /* disk, buffer loads */
1003 uint32_t playback_load ();
1004 uint32_t capture_load ();
1008 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
1009 void request_cancel_play_range ();
1010 bool get_play_range () const { return _play_range; }
1012 void maybe_update_session_range (framepos_t, framepos_t);
1015 framecnt_t preroll_samples (framepos_t) const;
1017 void request_preroll_record_punch (framepos_t start, framecnt_t preroll);
1018 void request_preroll_record_trim (framepos_t start, framecnt_t preroll);
1019 void request_count_in_record ();
1021 framepos_t preroll_record_punch_pos () const { return _preroll_record_punch_pos; }
1022 bool preroll_record_punch_enabled () const { return _preroll_record_punch_pos >= 0; }
1024 framecnt_t preroll_record_trim_len () const { return _preroll_record_trim_len; }
1026 /* temporary hacks to allow selection to be pushed from GUI into backend.
1027 Whenever we move the selection object into libardour, these will go away.
1029 void set_range_selection (framepos_t start, framepos_t end);
1030 void set_object_selection (framepos_t start, framepos_t end);
1031 void clear_range_selection ();
1032 void clear_object_selection ();
1034 /* buffers for gain and pan */
1036 gain_t* gain_automation_buffer () const;
1037 gain_t* trim_automation_buffer () const;
1038 gain_t* send_gain_automation_buffer () const;
1039 gain_t* scratch_automation_buffer () const;
1040 pan_t** pan_automation_buffer () const;
1042 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
1046 static int vst_current_loading_id;
1047 static const char* vst_can_do_strings[];
1048 static const int vst_can_do_string_count;
1050 static intptr_t vst_callback (
1059 static PBD::Signal0<void> SendFeedback;
1063 boost::shared_ptr<Speakers> get_speakers ();
1067 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
1069 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
1070 boost::shared_ptr<AutomationControl> automation_control_by_id (const PBD::ID&);
1071 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const ARDOUR::ControllableDescriptor&);
1073 void add_controllable (boost::shared_ptr<PBD::Controllable>);
1074 void remove_controllable (PBD::Controllable*);
1076 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
1078 SessionConfiguration config;
1080 SessionConfiguration* cfg () { return &config; }
1082 bool exporting () const {
1086 bool bounce_processing() const {
1087 return _bounce_processing_active;
1090 /* this is a private enum, but setup_enum_writer() needs it,
1091 and i can't find a way to give that function
1092 friend access. sigh.
1095 enum PostTransportWork {
1096 PostTransportStop = 0x1,
1097 PostTransportDuration = 0x2,
1098 PostTransportLocate = 0x4,
1099 PostTransportRoll = 0x8,
1100 PostTransportAbort = 0x10,
1101 PostTransportOverWrite = 0x20,
1102 PostTransportSpeed = 0x40,
1103 PostTransportAudition = 0x80,
1104 PostTransportReverse = 0x100,
1105 PostTransportInputChange = 0x200,
1106 PostTransportCurveRealloc = 0x400,
1107 PostTransportClearSubstate = 0x800,
1108 PostTransportAdjustPlaybackBuffering = 0x1000,
1109 PostTransportAdjustCaptureBuffering = 0x2000
1118 SlaveState slave_state() const { return _slave_state; }
1119 Slave* slave() const { return _slave; }
1121 boost::shared_ptr<SessionPlaylists> playlists;
1123 void send_mmc_locate (framepos_t);
1124 void queue_full_time_code () { _send_timecode_update = true; }
1125 void queue_song_position_pointer () { /* currently does nothing */ }
1127 bool step_editing() const { return (_step_editors > 0); }
1129 void request_suspend_timecode_transmission ();
1130 void request_resume_timecode_transmission ();
1131 bool timecode_transmission_suspended () const;
1133 std::vector<std::string> source_search_path(DataType) const;
1134 void ensure_search_path_includes (const std::string& path, DataType type);
1135 void remove_dir_from_search_path (const std::string& path, DataType type);
1137 std::list<std::string> unknown_processors () const;
1139 /** Emitted when a feedback cycle has been detected within Ardour's signal
1140 processing path. Until it is fixed (by the user) some (unspecified)
1141 routes will not be run.
1143 static PBD::Signal0<void> FeedbackDetected;
1145 /** Emitted when a graph sort has successfully completed, which means
1146 that it has no feedback cycles.
1148 static PBD::Signal0<void> SuccessfulGraphSort;
1150 /* handlers can return an integer value:
1151 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1152 to modify the search path and we should try to find it again.
1153 1: quit entire session load
1154 2: as 0, but don't ask about other missing files
1155 3: don't ask about other missing files, and just mark this one missing
1156 -1: just mark this one missing
1157 any other value: as -1
1159 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1161 void set_missing_file_replacement (const std::string& mfr) {
1162 _missing_file_replacement = mfr;
1165 /** Emitted when the session wants Ardour to quit */
1166 static PBD::Signal0<void> Quit;
1168 /** Emitted when Ardour is asked to load a session in an older session
1169 * format, and makes a backup copy.
1171 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1173 SceneChanger* scene_changer() const { return _scene_changer; }
1175 /* asynchronous MIDI control ports */
1177 boost::shared_ptr<Port> midi_input_port () const;
1178 boost::shared_ptr<Port> midi_output_port () const;
1179 boost::shared_ptr<Port> mmc_output_port () const;
1180 boost::shared_ptr<Port> mmc_input_port () const;
1181 boost::shared_ptr<Port> scene_input_port () const;
1182 boost::shared_ptr<Port> scene_output_port () const;
1184 /* synchronous MIDI ports used for synchronization */
1186 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1187 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1188 boost::shared_ptr<MidiPort> mtc_output_port () const;
1189 boost::shared_ptr<MidiPort> mtc_input_port () const;
1190 boost::shared_ptr<Port> ltc_input_port() const;
1191 boost::shared_ptr<Port> ltc_output_port() const;
1193 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1194 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1196 MIDI::MachineControl& mmc() { return *_mmc; }
1198 void reconnect_midi_scene_ports (bool);
1199 void reconnect_mtc_ports ();
1200 void reconnect_mmc_ports (bool);
1202 void reconnect_ltc_input ();
1203 void reconnect_ltc_output ();
1205 VCAManager& vca_manager() { return *_vca_manager; }
1206 VCAManager* vca_manager_ptr() { return _vca_manager; }
1208 void auto_connect_thread_wakeup ();
1212 friend class AudioEngine;
1213 void set_block_size (pframes_t nframes);
1214 void set_frame_rate (framecnt_t nframes);
1215 #ifdef USE_TRACKS_CODE_FEATURES
1216 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1221 void schedule_curve_reallocation ();
1222 void update_latency_compensation (bool force = false);
1225 int create (const std::string& mix_template, BusProfile*);
1228 static guint _name_id_counter;
1229 static void init_name_id_counter (guint n);
1230 static unsigned int name_id_counter ();
1232 /* stuff used in process() should be close together to
1236 typedef void (Session::*process_function_type)(pframes_t);
1238 AudioEngine& _engine;
1239 mutable gint processing_prohibited;
1240 process_function_type process_function;
1241 process_function_type last_process_function;
1242 bool _bounce_processing_active;
1243 bool waiting_for_sync_offset;
1244 framecnt_t _base_frame_rate; // sample-rate of the session at creation time, "native" SR
1245 framecnt_t _nominal_frame_rate; // overridden by audioengine setting
1246 framecnt_t _current_frame_rate; // this includes video pullup offset
1247 int transport_sub_state;
1248 mutable gint _record_status;
1249 framepos_t _transport_frame;
1250 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1251 bool _session_range_end_is_free;
1255 // varispeed playback
1256 double _transport_speed;
1257 double _default_transport_speed;
1258 double _last_transport_speed;
1259 double _signalled_varispeed;
1260 double _target_transport_speed;
1261 CubicInterpolation interpolation;
1263 bool auto_play_legal;
1264 framepos_t _last_slave_transport_frame;
1265 framecnt_t maximum_output_latency;
1266 framepos_t _requested_return_frame;
1267 pframes_t current_block_size;
1268 framecnt_t _worst_output_latency;
1269 framecnt_t _worst_input_latency;
1270 framecnt_t _worst_track_latency;
1271 bool _have_captured;
1272 bool _non_soloed_outs_muted;
1274 uint32_t _listen_cnt;
1275 uint32_t _solo_isolated_cnt;
1278 bool _under_nsm_control;
1279 unsigned int _xrun_count;
1281 std::string _missing_file_replacement;
1283 void mtc_status_changed (bool);
1284 PBD::ScopedConnection mtc_status_connection;
1285 void ltc_status_changed (bool);
1286 PBD::ScopedConnection ltc_status_connection;
1288 void initialize_latencies ();
1289 void set_worst_io_latencies ();
1290 void set_worst_playback_latency ();
1291 void set_worst_capture_latency ();
1292 void set_worst_io_latencies_x (IOChange, void *) {
1293 set_worst_io_latencies ();
1295 void post_capture_latency ();
1296 void post_playback_latency ();
1298 void update_latency_compensation_proxy (void* ignored);
1300 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1302 void process_scrub (pframes_t);
1303 void process_without_events (pframes_t);
1304 void process_with_events (pframes_t);
1305 void process_audition (pframes_t);
1306 void process_export (pframes_t);
1307 void process_export_fw (pframes_t);
1309 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1310 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1311 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1313 static const framecnt_t bounce_chunk_size;
1315 /* slave tracking */
1317 static const int delta_accumulator_size = 25;
1318 int delta_accumulator_cnt;
1319 int32_t delta_accumulator[delta_accumulator_size];
1320 int32_t average_slave_delta;
1322 bool have_first_delta_accumulator;
1324 SlaveState _slave_state;
1327 framepos_t slave_wait_end;
1329 void reset_slave_state ();
1330 bool follow_slave (pframes_t);
1331 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1332 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1333 void follow_slave_silently (pframes_t nframes, float slave_speed);
1335 void switch_to_sync_source (SyncSource); /* !RT context */
1336 void drop_sync_source (); /* !RT context */
1337 void use_sync_source (Slave*); /* RT context */
1339 bool post_export_sync;
1340 framepos_t post_export_position;
1343 bool _export_rolling;
1344 bool _realtime_export;
1345 bool _region_export;
1346 framepos_t _export_preroll;
1347 framepos_t _export_latency;
1349 boost::shared_ptr<ExportHandler> export_handler;
1350 boost::shared_ptr<ExportStatus> export_status;
1353 int stop_audio_export ();
1354 void finalize_audio_export ();
1355 void finalize_export_internal (bool stop_freewheel);
1356 bool _pre_export_mmc_enabled;
1358 PBD::ScopedConnection export_freewheel_connection;
1360 void get_track_statistics ();
1361 int process_routes (pframes_t, bool& need_butler);
1362 int silent_process_routes (pframes_t, bool& need_butler);
1364 /** @return 1 if there is a pending declick fade-in,
1365 -1 if there is a pending declick fade-out,
1366 0 if there is no pending declick.
1368 int get_transport_declick_required () {
1369 if (transport_sub_state & PendingDeclickIn) {
1370 transport_sub_state &= ~PendingDeclickIn;
1372 } else if (transport_sub_state & PendingDeclickOut) {
1373 /* XXX: not entirely sure why we don't clear this */
1375 } else if (transport_sub_state & PendingLoopDeclickOut) {
1376 /* Return the declick out first ... */
1377 transport_sub_state &= ~PendingLoopDeclickOut;
1379 } else if (transport_sub_state & PendingLoopDeclickIn) {
1380 /* ... then the declick in on the next call */
1381 transport_sub_state &= ~PendingLoopDeclickIn;
1388 bool maybe_stop (framepos_t limit);
1389 bool maybe_sync_start (pframes_t &);
1391 void check_declick_out ();
1397 /** Number of process frames since the last MTC output (when sending MTC); used to
1398 * know when to send full MTC messages every so often.
1400 pframes_t _pframes_since_last_mtc;
1403 framepos_t last_loopend;
1405 boost::scoped_ptr<SessionDirectory> _session_dir;
1408 void graph_reordered ();
1410 /** current snapshot name, without the .ardour suffix */
1411 void set_snapshot_name (const std::string &);
1412 void save_snapshot_name (const std::string &);
1413 std::string _current_snapshot_name;
1415 XMLTree* state_tree;
1416 bool state_was_pending;
1417 StateOfTheState _state_of_the_state;
1419 friend class StateProtector;
1420 gint _suspend_save; /* atomic */
1421 volatile bool _save_queued;
1422 Glib::Threads::Mutex save_state_lock;
1423 Glib::Threads::Mutex peak_cleanup_lock;
1425 int load_options (const XMLNode&);
1426 int load_state (std::string snapshot_name);
1427 static int parse_stateful_loading_version (const std::string&);
1429 framepos_t _last_roll_location;
1430 /** the session frame time at which we last rolled, located, or changed transport direction */
1431 framepos_t _last_roll_or_reversal_location;
1432 framepos_t _last_record_location;
1434 bool pending_locate_roll;
1435 framepos_t pending_locate_frame;
1436 bool pending_locate_flush;
1438 bool pending_auto_loop;
1440 PBD::ReallocPool _mempool;
1442 Glib::Threads::Mutex lua_lock;
1443 luabridge::LuaRef * _lua_run;
1444 luabridge::LuaRef * _lua_add;
1445 luabridge::LuaRef * _lua_del;
1446 luabridge::LuaRef * _lua_list;
1447 luabridge::LuaRef * _lua_load;
1448 luabridge::LuaRef * _lua_save;
1449 luabridge::LuaRef * _lua_cleanup;
1450 uint32_t _n_lua_scripts;
1453 void try_run_lua (pframes_t);
1457 static const PostTransportWork ProcessCannotProceedMask =
1459 PostTransportInputChange|
1460 PostTransportReverse|
1461 PostTransportCurveRealloc|
1462 PostTransportAudition|
1463 PostTransportLocate|
1465 PostTransportClearSubstate);
1467 gint _post_transport_work; /* accessed only atomic ops */
1468 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1469 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1470 void add_post_transport_work (PostTransportWork ptw);
1472 void schedule_playback_buffering_adjustment ();
1473 void schedule_capture_buffering_adjustment ();
1475 uint32_t cumulative_rf_motion;
1478 void set_rf_speed (float speed);
1479 void reset_rf_scale (framecnt_t frames_moved);
1481 Locations* _locations;
1482 void location_added (Location*);
1483 void location_removed (Location*);
1484 void locations_changed ();
1485 void _locations_changed (const Locations::LocationList&);
1487 void update_skips (Location*, bool consolidate);
1488 void update_marks (Location* loc);
1489 void consolidate_skips (Location*);
1490 void sync_locations_to_skips ();
1491 void _sync_locations_to_skips ();
1493 PBD::ScopedConnectionList skip_update_connections;
1494 bool _ignore_skips_updates;
1496 PBD::ScopedConnectionList punch_connections;
1497 void auto_punch_start_changed (Location *);
1498 void auto_punch_end_changed (Location *);
1499 void auto_punch_changed (Location *);
1501 PBD::ScopedConnectionList loop_connections;
1502 void auto_loop_changed (Location *);
1503 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1505 int ensure_engine (uint32_t desired_sample_rate, bool);
1506 void pre_engine_init (std::string path);
1507 int post_engine_init ();
1508 int immediately_post_engine ();
1509 void remove_empty_sounds ();
1511 void session_loaded ();
1513 void setup_midi_control ();
1514 int midi_read (MIDI::Port *);
1516 void enable_record ();
1518 void increment_transport_position (framecnt_t val) {
1519 if (max_framepos - val < _transport_frame) {
1520 _transport_frame = max_framepos;
1522 _transport_frame += val;
1526 void decrement_transport_position (framecnt_t val) {
1527 if (val < _transport_frame) {
1528 _transport_frame -= val;
1530 _transport_frame = 0;
1534 void post_transport_motion ();
1535 static void *session_loader_thread (void *arg);
1539 /* Signal Forwarding */
1540 void emit_route_signals ();
1541 void emit_thread_run ();
1542 static void *emit_thread (void *);
1543 void emit_thread_start ();
1544 void emit_thread_terminate ();
1546 pthread_t _rt_emit_thread;
1547 bool _rt_thread_active;
1549 pthread_mutex_t _rt_emit_mutex;
1550 pthread_cond_t _rt_emit_cond;
1551 bool _rt_emit_pending;
1553 /* Auto Connect Thread */
1554 static void *auto_connect_thread (void *);
1555 void auto_connect_thread_run ();
1556 void auto_connect_thread_start ();
1557 void auto_connect_thread_terminate ();
1559 pthread_t _auto_connect_thread;
1560 gint _ac_thread_active;
1561 pthread_mutex_t _auto_connect_mutex;
1562 pthread_cond_t _auto_connect_cond;
1564 struct AutoConnectRequest {
1566 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1567 const ChanCount& is,
1568 const ChanCount& os,
1569 const ChanCount& io,
1570 const ChanCount& oo)
1571 : route (boost::weak_ptr<Route> (r))
1572 , connect_inputs (ci)
1576 , output_offset (oo)
1579 boost::weak_ptr <Route> route;
1580 bool connect_inputs;
1581 ChanCount input_start;
1582 ChanCount output_start;
1583 ChanCount input_offset;
1584 ChanCount output_offset;
1587 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1588 Glib::Threads::Mutex _auto_connect_queue_lock;
1589 AutoConnectQueue _auto_connect_queue;
1590 guint _latency_recompute_pending;
1592 void get_physical_ports (std::vector<std::string>& inputs, std::vector<std::string>& outputs, DataType type,
1593 MidiPortFlags include = MidiPortFlags (0),
1594 MidiPortFlags exclude = MidiPortFlags (0));
1596 void auto_connect (const AutoConnectRequest&);
1597 void queue_latency_recompute ();
1599 /* SessionEventManager interface */
1601 void process_event (SessionEvent*);
1602 void set_next_event ();
1603 void cleanup_event (SessionEvent*,int);
1605 /* MIDI Machine Control */
1608 void spp_continue ();
1611 void mmc_deferred_play (MIDI::MachineControl &);
1612 void mmc_stop (MIDI::MachineControl &);
1613 void mmc_step (MIDI::MachineControl &, int);
1614 void mmc_pause (MIDI::MachineControl &);
1615 void mmc_record_pause (MIDI::MachineControl &);
1616 void mmc_record_strobe (MIDI::MachineControl &);
1617 void mmc_record_exit (MIDI::MachineControl &);
1618 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1619 void mmc_fast_forward (MIDI::MachineControl &);
1620 void mmc_rewind (MIDI::MachineControl &);
1621 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1622 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1623 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1625 struct timeval last_mmc_step;
1628 typedef boost::function<bool()> MidiTimeoutCallback;
1629 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1631 MidiTimeoutList midi_timeouts;
1632 bool mmc_step_timeout ();
1633 void send_immediate_mmc (MIDI::MachineControlCommand);
1635 MIDI::byte mtc_msg[16];
1636 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1637 MIDI::byte midi_msg[16];
1638 double outbound_mtc_timecode_frame;
1639 Timecode::Time transmitting_timecode_time;
1640 int next_quarter_frame_to_send;
1642 double _samples_per_timecode_frame; /* has to be floating point because of drop frame */
1643 framecnt_t _frames_per_hour;
1644 framecnt_t _timecode_frames_per_hour;
1646 /* cache the most-recently requested time conversions. This helps when we
1647 * have multiple clocks showing the same time (e.g. the transport frame) */
1648 bool last_timecode_valid;
1649 framepos_t last_timecode_when;
1650 Timecode::Time last_timecode;
1652 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1654 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1656 LTCEncoder* ltc_encoder;
1657 ltcsnd_sample_t* ltc_enc_buf;
1659 Timecode::TimecodeFormat ltc_enc_tcformat;
1660 int32_t ltc_buf_off;
1661 int32_t ltc_buf_len;
1664 int32_t ltc_enc_byte;
1665 framepos_t ltc_enc_pos;
1667 framepos_t ltc_enc_off;
1669 framepos_t ltc_prev_cycle;
1671 framepos_t ltc_timecode_offset;
1672 bool ltc_timecode_negative_offset;
1674 LatencyRange ltc_out_latency;
1676 void ltc_tx_initialize();
1677 void ltc_tx_cleanup();
1678 void ltc_tx_reset();
1679 void ltc_tx_resync_latency();
1680 void ltc_tx_recalculate_position();
1681 void ltc_tx_parse_offset();
1682 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1683 PBD::ScopedConnectionList ltc_tx_connections;
1686 void reset_record_status ();
1688 int no_roll (pframes_t nframes);
1689 int fail_roll (pframes_t nframes);
1691 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1692 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1694 MidiControlUI* midi_control_ui;
1696 int start_midi_thread ();
1698 void set_play_loop (bool yn, double speed);
1699 void unset_play_loop ();
1700 void overwrite_some_buffers (Track *);
1701 void flush_all_inserts ();
1702 int micro_locate (framecnt_t distance);
1703 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1704 void start_locate (framepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1705 void force_locate (framepos_t frame, bool with_roll = false);
1706 void set_track_speed (Track *, double speed);
1707 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1708 void stop_transport (bool abort = false, bool clear_state = false);
1709 void start_transport ();
1710 void realtime_stop (bool abort, bool clear_state);
1711 void realtime_locate ();
1712 void non_realtime_start_scrub ();
1713 void non_realtime_set_speed ();
1714 void non_realtime_locate ();
1715 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1716 void non_realtime_overwrite (int entry_request_count, bool& finished);
1717 void post_transport ();
1718 void engine_halted ();
1719 void xrun_recovery ();
1720 void set_track_loop (bool);
1721 bool select_playhead_priority_target (framepos_t&);
1722 void follow_playhead_priority ();
1724 /* These are synchronous and so can only be called from within the process
1728 int send_full_time_code (framepos_t, pframes_t nframes);
1729 void send_song_position_pointer (framepos_t);
1731 TempoMap *_tempo_map;
1732 void tempo_map_changed (const PBD::PropertyChange&);
1734 /* edit/mix groups */
1736 int load_route_groups (const XMLNode&, int);
1738 std::list<RouteGroup *> _route_groups;
1739 RouteGroup* _all_route_group;
1743 boost::shared_ptr<Graph> _process_graph;
1745 SerializedRCUManager<RouteList> routes;
1747 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save, PresentationInfo::order_t);
1748 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect, PresentationInfo::order_t);
1749 bool _adding_routes_in_progress;
1750 bool _reconnecting_routes_in_progress;
1751 bool _route_deletion_in_progress;
1753 uint32_t destructive_index;
1755 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1756 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1758 void route_processors_changed (RouteProcessorChange);
1760 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1761 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1762 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1763 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1765 /* track numbering */
1767 void reassign_track_numbers ();
1768 uint32_t _track_number_decimals;
1770 /* solo/mute/notifications */
1772 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1773 void route_mute_changed ();
1774 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1775 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1777 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1779 void listen_position_changed ();
1780 void solo_control_mode_changed ();
1782 /* REGION MANAGEMENT */
1784 mutable Glib::Threads::Mutex region_lock;
1786 int load_regions (const XMLNode& node);
1787 int load_compounds (const XMLNode& node);
1789 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1790 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1791 void route_group_property_changed (RouteGroup *);
1795 mutable Glib::Threads::Mutex source_lock;
1798 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1801 void reset_write_sources (bool mark_write_complete, bool force = false);
1806 int load_sources (const XMLNode& node);
1807 XMLNode& get_sources_as_xml ();
1809 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1813 void remove_playlist (boost::weak_ptr<Playlist>);
1814 void track_playlist_changed (boost::weak_ptr<Track>);
1815 void playlist_region_added (boost::weak_ptr<Region>);
1816 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1817 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1819 /* CURVES and AUTOMATION LISTS */
1820 std::map<PBD::ID, AutomationList*> automation_lists;
1822 /* DEFAULT FADE CURVES */
1824 float default_fade_steepness;
1825 float default_fade_msecs;
1829 boost::shared_ptr<Auditioner> auditioner;
1830 void set_audition (boost::shared_ptr<Region>);
1831 void non_realtime_set_audition ();
1832 boost::shared_ptr<Region> pending_audition_region;
1838 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1840 /* INSERT AND SEND MANAGEMENT */
1842 boost::dynamic_bitset<uint32_t> send_bitset;
1843 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1844 boost::dynamic_bitset<uint32_t> return_bitset;
1845 boost::dynamic_bitset<uint32_t> insert_bitset;
1849 struct space_and_path {
1850 uint32_t blocks; ///< 4kB blocks
1851 bool blocks_unknown; ///< true if blocks is unknown
1856 , blocks_unknown (true)
1860 struct space_and_path_ascending_cmp {
1861 bool operator() (space_and_path a, space_and_path b) {
1862 if (a.blocks_unknown != b.blocks_unknown) {
1863 return !a.blocks_unknown;
1865 return a.blocks > b.blocks;
1869 void setup_raid_path (std::string path);
1871 std::vector<space_and_path> session_dirs;
1872 std::vector<space_and_path>::iterator last_rr_session_dir;
1873 uint32_t _total_free_4k_blocks;
1874 /** If this is true, _total_free_4k_blocks is not definite,
1875 as one or more of the session directories' filesystems
1876 could not report free space.
1878 bool _total_free_4k_blocks_uncertain;
1879 Glib::Threads::Mutex space_lock;
1881 bool no_questions_about_missing_files;
1883 std::string get_best_session_directory_for_new_audio ();
1885 mutable gint _playback_load;
1886 mutable gint _capture_load;
1890 SerializedRCUManager<BundleList> _bundles;
1891 XMLNode* _bundle_xml_node;
1892 int load_bundles (XMLNode const &);
1894 UndoHistory _history;
1895 /** current undo transaction, or 0 */
1896 UndoTransaction* _current_trans;
1897 /** GQuarks to describe the reversible commands that are currently in progress.
1898 * These may be nested, in which case more recently-started commands are toward
1899 * the front of the list.
1901 std::list<GQuark> _current_trans_quarks;
1903 int backend_sync_callback (TransportState, framepos_t);
1905 void process_rtop (SessionEvent*);
1907 void update_latency (bool playback);
1915 XMLNode& state(bool, snapshot_t snapshot_type = NormalSave);
1918 typedef std::list<Click*> Clicks;
1921 bool _click_rec_only;
1922 boost::shared_ptr<IO> _click_io;
1923 boost::shared_ptr<Amp> _click_gain;
1925 Sample* click_emphasis_data;
1926 framecnt_t click_length;
1927 framecnt_t click_emphasis_length;
1928 mutable Glib::Threads::RWLock click_lock;
1930 static const Sample default_click[];
1931 static const framecnt_t default_click_length;
1932 static const Sample default_click_emphasis[];
1933 static const framecnt_t default_click_emphasis_length;
1936 framepos_t _clicks_cleared;
1937 void setup_click_sounds (int which);
1938 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1939 void clear_clicks ();
1940 void click (framepos_t start, framecnt_t nframes);
1941 void run_click (framepos_t start, framecnt_t nframes);
1942 void add_click (framepos_t pos, bool emphasis);
1943 framecnt_t _count_in_samples;
1945 /* range playback */
1947 std::list<AudioRange> current_audio_range;
1949 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1950 void unset_play_range ();
1952 /* temporary hacks to allow selection to be pushed from GUI into backend
1953 Whenever we move the selection object into libardour, these will go away.
1955 Evoral::Range<framepos_t> _range_selection;
1956 Evoral::Range<framepos_t> _object_selection;
1958 void unset_preroll_record_punch ();
1959 void unset_preroll_record_trim ();
1961 framepos_t _preroll_record_punch_pos;
1962 framecnt_t _preroll_record_trim_len;
1963 bool _count_in_once;
1968 boost::shared_ptr<Route> _master_out;
1969 boost::shared_ptr<Route> _monitor_out;
1971 void auto_connect_master_bus ();
1973 int find_all_sources (std::string path, std::set<std::string>& result);
1974 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1976 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1977 Glib::Threads::Mutex controllables_lock;
1978 Controllables controllables;
1980 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1982 void reset_native_file_format();
1983 bool first_file_data_format_reset;
1984 bool first_file_header_format_reset;
1986 void config_changed (std::string, bool);
1988 XMLNode& get_control_protocol_state ();
1990 void set_history_depth (uint32_t depth);
1992 static bool _disable_all_loaded_plugins;
1993 static bool _bypass_all_loaded_plugins;
1995 mutable bool have_looped; ///< Used in ::audible_frame(*)
1997 void update_route_record_state ();
1998 gint _have_rec_enabled_track;
1999 gint _have_rec_disabled_track;
2001 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
2003 /* realtime "apply to set of routes" operations */
2004 template<typename T> SessionEvent*
2005 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
2006 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
2007 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2008 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
2009 ev->rt_return = after;
2010 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2015 /* specialized version realtime "apply to set of routes" operations */
2016 template<typename T1, typename T2> SessionEvent*
2017 get_rt_event (boost::shared_ptr<RouteList> rl, T1 t1arg, T2 t2arg, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
2018 void (Session::*method) (boost::shared_ptr<RouteList>, T1, T2, PBD::Controllable::GroupControlDisposition)) {
2019 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2020 ev->rt_slot = boost::bind (method, this, rl, t1arg, t2arg, group_override);
2021 ev->rt_return = after;
2022 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2027 /* specialized version realtime "apply to set of controls" operations */
2028 SessionEvent* get_rt_event (boost::shared_ptr<ControlList> cl, double arg, PBD::Controllable::GroupControlDisposition group_override) {
2029 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2030 ev->rt_slot = boost::bind (&Session::rt_set_controls, this, cl, arg, group_override);
2031 ev->rt_return = Session::rt_cleanup;
2032 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2037 void rt_set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition group_override);
2038 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
2040 /** temporary list of Diskstreams used only during load of 2.X sessions */
2041 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
2043 void set_session_range_location (framepos_t, framepos_t);
2045 void setup_midi_machine_control ();
2047 void step_edit_status_change (bool);
2048 uint32_t _step_editors;
2050 /** true if timecode transmission by the transport is suspended, otherwise false */
2051 mutable gint _suspend_timecode_transmission;
2053 void update_locations_after_tempo_map_change (const Locations::LocationList &);
2055 void start_time_changed (framepos_t);
2056 void end_time_changed (framepos_t);
2058 void set_track_monitor_input_status (bool);
2059 framepos_t compute_stop_limit () const;
2061 boost::shared_ptr<Speakers> _speakers;
2062 void load_nested_sources (const XMLNode& node);
2064 /** The directed graph of routes that is currently being used for audio processing
2065 and solo/mute computations.
2067 GraphEdges _current_route_graph;
2069 void ensure_route_presentation_info_gap (PresentationInfo::order_t, uint32_t gap_size);
2071 friend class ProcessorChangeBlocker;
2072 gint _ignore_route_processor_changes; /* atomic */
2074 MidiClockTicker* midi_clock;
2076 boost::shared_ptr<IO> _ltc_input;
2077 boost::shared_ptr<IO> _ltc_output;
2079 /* Scene Changing */
2080 SceneChanger* _scene_changer;
2082 /* persistent, non-track related MIDI ports */
2083 MidiPortManager* _midi_ports;
2084 MIDI::MachineControl* _mmc;
2087 void setup_click ();
2088 void setup_click_state (const XMLNode*);
2089 void setup_bundles ();
2091 void save_as_bring_callback (uint32_t, uint32_t, std::string);
2093 static const uint32_t session_end_shift;
2095 std::string _template_state_dir;
2097 VCAManager* _vca_manager;
2099 boost::shared_ptr<Route> get_midi_nth_route_by_id (PresentationInfo::order_t n) const;
2101 std::string created_with;
2103 void midi_track_presentation_info_changed (PBD::PropertyChange const &, boost::weak_ptr<MidiTrack>);
2104 void rewire_selected_midi (boost::shared_ptr<MidiTrack>);
2105 void rewire_midi_selection_ports ();
2106 boost::weak_ptr<MidiTrack> current_midi_target;
2108 CoreSelection* _selection;
2112 } // namespace ARDOUR
2114 #endif /* __ardour_session_h__ */