2 Copyright (C) 2000 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_session_h__
21 #define __ardour_session_h__
23 #include "libardour-config.h"
34 #include <boost/dynamic_bitset.hpp>
35 #include <boost/scoped_ptr.hpp>
36 #include <boost/weak_ptr.hpp>
37 #include <boost/utility.hpp>
39 #include <glibmm/threads.h>
43 #include "pbd/error.h"
44 #include "pbd/event_loop.h"
46 #include "pbd/reallocpool.h"
47 #include "pbd/statefuldestructible.h"
48 #include "pbd/signals.h"
51 #include "lua/luastate.h"
53 #include "evoral/Range.hpp"
55 #include "midi++/types.h"
56 #include "midi++/mmc.h"
58 #include "timecode/time.h"
60 #include "ardour/ardour.h"
61 #include "ardour/chan_count.h"
62 #include "ardour/delivery.h"
63 #include "ardour/interthread_info.h"
64 #include "ardour/luascripting.h"
65 #include "ardour/location.h"
66 #include "ardour/monitor_processor.h"
67 #include "ardour/presentation_info.h"
68 #include "ardour/rc_configuration.h"
69 #include "ardour/session_configuration.h"
70 #include "ardour/session_event.h"
71 #include "ardour/interpolation.h"
72 #include "ardour/plugin.h"
73 #include "ardour/presentation_info.h"
74 #include "ardour/route.h"
75 #include "ardour/route_graph.h"
81 typedef struct _AEffect AEffect;
105 class AudioFileSource;
110 class AutomationList;
116 class ControllableDescriptor;
124 class MidiClockTicker;
126 class MidiPortManager;
146 class SessionDirectory;
147 class SessionMetadata;
148 class SessionPlaylists;
155 class WindowsVSTPlugin;
157 extern void setup_enum_writer ();
159 class LIBARDOUR_API SessionException: public std::exception {
161 explicit SessionException(const std::string msg) : _message(msg) {}
162 virtual ~SessionException() throw() {}
164 virtual const char* what() const throw() { return _message.c_str(); }
167 std::string _message;
170 /** Ardour Session */
171 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
175 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
176 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
177 StopPendingCapture = 0x4,
178 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
179 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
180 PendingLocate = 0x20,
190 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
191 the bus profile can be null if no master out bus is required.
194 Session (AudioEngine&,
195 const std::string& fullpath,
196 const std::string& snapshot_name,
197 BusProfile* bus_profile = 0,
198 std::string mix_template = "");
202 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format, std::string& created_version);
203 static std::string get_snapshot_from_instant (const std::string& session_dir);
205 /** a monotonic counter used for naming user-visible things uniquely
206 * (curently the sidechain port).
207 * Use sparingly to keep the numbers low, prefer PBD::ID for all
208 * internal, not user-visible IDs */
209 static unsigned int next_name_id ();
211 std::string path() const { return _path; }
212 std::string name() const { return _name; }
213 std::string snap_name() const { return _current_snapshot_name; }
214 std::string raid_path () const;
215 bool path_is_within_session (const std::string&);
217 bool writable() const { return _writable; }
220 bool dirty() const { return _state_of_the_state & Dirty; }
221 void set_deletion_in_progress ();
222 void clear_deletion_in_progress ();
223 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
224 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
225 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
226 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
227 bool loading () const { return _state_of_the_state & Loading; }
229 PBD::Signal0<void> DirtyChanged;
231 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
233 static PBD::Signal1<void,std::string> Dialog;
235 PBD::Signal0<void> BatchUpdateStart;
236 PBD::Signal0<void> BatchUpdateEnd;
238 int ensure_subdirs ();
240 std::string automation_dir () const; ///< Automation data
241 std::string analysis_dir () const; ///< Analysis data
242 std::string plugins_dir () const; ///< Plugin state
243 std::string externals_dir () const; ///< Links to external files
245 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
247 bool audio_source_name_is_unique (const std::string& name);
248 std::string format_audio_source_name (const std::string& legalized_base, uint32_t nchan, uint32_t chan, bool destructive, bool take_required, uint32_t cnt, bool related_exists);
249 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
250 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
251 std::string new_midi_source_path (const std::string&);
252 /** create a new track or bus from a template (XML path)
253 * @param how_many how many tracks or busses to create
254 * @param template_path path to xml template file
255 * @param name name (prefix) of the route to create
256 * @param pd Playlist disposition
257 * @return list of newly created routes
259 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, const std::string& template_path, const std::string& name, PlaylistDisposition pd = NewPlaylist);
260 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
261 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path,
262 uint32_t channels, std::vector<std::string> const & smf_track_names);
264 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
266 void process (pframes_t nframes);
268 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
269 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
270 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
271 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
272 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
274 bool have_rec_enabled_track () const;
275 bool have_rec_disabled_track () const;
277 bool have_captured() const { return _have_captured; }
279 void refill_all_track_buffers ();
280 Butler* butler() { return _butler; }
281 void butler_transport_work ();
283 void refresh_disk_space ();
285 int load_diskstreams_2X (XMLNode const &, int);
287 int load_routes (const XMLNode&, int);
288 boost::shared_ptr<RouteList> get_routes() const {
289 return routes.reader ();
292 /* because the set of Stripables consists of objects managed
293 * independently, in multiple containers within the Session (or objects
294 * owned by the session), we fill out a list in-place rather than
295 * return a pointer to a copy of the (RCU) managed list, as happens
299 void get_stripables (StripableList&) const;
300 boost::shared_ptr<RouteList> get_tracks() const;
301 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
302 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
304 uint32_t nroutes() const { return routes.reader()->size(); }
305 uint32_t ntracks () const;
306 uint32_t nbusses () const;
308 boost::shared_ptr<BundleList> bundles () {
309 return _bundles.reader ();
312 struct LIBARDOUR_API RoutePublicOrderSorter {
313 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
316 void notify_presentation_info_change ();
318 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
319 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
320 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
322 static char session_name_is_legal (const std::string&);
323 bool io_name_is_legal (const std::string&) const;
324 boost::shared_ptr<Route> route_by_name (std::string) const;
325 boost::shared_ptr<Route> route_by_id (PBD::ID) const;
326 boost::shared_ptr<Stripable> get_remote_nth_stripable (PresentationInfo::order_t n, PresentationInfo::Flag) const;
327 boost::shared_ptr<Route> get_remote_nth_route (PresentationInfo::order_t n) const;
328 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt) const;
329 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID) const;
330 void routes_using_input_from (const std::string& str, RouteList& rl);
332 bool route_name_unique (std::string) const;
333 bool route_name_internal (std::string) const;
335 uint32_t track_number_decimals () const {
336 return _track_number_decimals;
339 bool get_record_enabled() const {
340 return (record_status () >= Enabled);
343 RecordState record_status() const {
344 return (RecordState) g_atomic_int_get (&_record_status);
347 bool actively_recording () const {
348 return record_status() == Recording;
351 bool record_enabling_legal () const;
352 void maybe_enable_record (bool rt_context = false);
353 void disable_record (bool rt_context, bool force = false);
354 void step_back_from_record ();
356 void set_all_tracks_record_enabled(bool);
358 void maybe_write_autosave ();
360 /* Emitted when all i/o connections are complete */
362 PBD::Signal0<void> IOConnectionsComplete;
364 /* Timecode status signals */
365 PBD::Signal1<void, bool> MTCSyncStateChanged;
366 PBD::Signal1<void, bool> LTCSyncStateChanged;
368 /* Record status signals */
370 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
371 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
372 from the previous signal and session state.
374 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
376 /* Emited when session is loaded */
377 PBD::Signal0<void> SessionLoaded;
379 /* Transport mechanism signals */
381 /** Emitted on the following changes in transport state:
382 * - stop (from the butler thread)
383 * - change in whether or not we are looping (from the process thread)
384 * - change in the play range (from the process thread)
385 * - start (from the process thread)
388 PBD::Signal0<void> TransportStateChange;
390 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
391 PBD::Signal1<void,framepos_t> Xrun;
392 PBD::Signal0<void> TransportLooped;
394 /** emitted when a locate has occurred */
395 PBD::Signal0<void> Located;
397 PBD::Signal1<void,RouteList&> RouteAdded;
398 /** Emitted when a property of one of our route groups changes.
399 * The parameter is the RouteGroup that has changed.
401 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
402 /** Emitted when a route is added to one of our route groups.
403 * First parameter is the RouteGroup, second is the route.
405 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
406 /** Emitted when a route is removed from one of our route groups.
407 * First parameter is the RouteGroup, second is the route.
409 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
411 /* Step Editing status changed */
412 PBD::Signal1<void,bool> StepEditStatusChange;
414 /* Timecode state signals */
415 PBD::Signal0<void> MtcOrLtcInputPortChanged;
417 void queue_event (SessionEvent*);
419 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
420 void request_bounded_roll (framepos_t start, framepos_t end);
421 void request_stop (bool abort = false, bool clear_state = false);
422 void request_locate (framepos_t frame, bool with_roll = false);
424 void request_play_loop (bool yn, bool leave_rolling = false);
425 bool get_play_loop () const { return play_loop; }
427 framepos_t last_transport_start () const { return _last_roll_location; }
429 void goto_start (bool and_roll = false);
430 void use_rf_shuttle_speed ();
431 void allow_auto_play (bool yn);
432 void request_transport_speed (double speed, bool as_default = true);
433 void request_transport_speed_nonzero (double, bool as_default = true);
434 void request_overwrite_buffer (Track *);
435 void adjust_playback_buffering();
436 void adjust_capture_buffering();
437 void request_track_speed (Track *, double speed);
438 void request_input_change_handling ();
440 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
441 bool declick_out_pending() const { return static_cast<bool>(transport_sub_state&(PendingDeclickOut)); }
442 bool transport_locked () const;
446 framepos_t current_end_frame () const;
447 framepos_t current_start_frame () const;
448 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
449 framecnt_t frame_rate () const { return _current_frame_rate; }
450 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
451 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
452 framecnt_t frames_per_hour () const { return _frames_per_hour; }
454 double samples_per_timecode_frame() const { return _samples_per_timecode_frame; }
455 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
457 MIDI::byte get_mtc_timecode_bits() const {
458 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
461 double timecode_frames_per_second() const;
462 bool timecode_drop_frames() const;
466 Locations *locations() { return _locations; }
468 PBD::Signal1<void,Location*> auto_loop_location_changed;
469 PBD::Signal1<void,Location*> auto_punch_location_changed;
470 PBD::Signal0<void> locations_modified;
472 void set_auto_punch_location (Location *);
473 void set_auto_loop_location (Location *);
474 void set_session_extents (framepos_t start, framepos_t end);
475 void set_end_is_free (bool);
476 int location_name(std::string& result, std::string base = std::string(""));
478 pframes_t get_block_size() const { return current_block_size; }
479 framecnt_t worst_output_latency () const { return _worst_output_latency; }
480 framecnt_t worst_input_latency () const { return _worst_input_latency; }
481 framecnt_t worst_track_latency () const { return _worst_track_latency; }
482 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
485 std::string new_parent_folder; /* parent folder where new session folder will be created */
486 std::string new_name; /* name of newly saved session */
487 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
488 bool include_media; /* true if the newly saved session should contain references to media */
489 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
490 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
492 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
494 /* emitted as we make progress. 3 arguments passed to signal
497 * 1: percentage complete measured as a fraction (0-1.0) of
498 * total data copying done.
499 * 2: number of files copied so far
500 * 3: total number of files to copy
502 * Handler should return true for save-as to continue, or false
503 * to stop (and remove all evidence of partial save-as).
505 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
507 /* if save_as() returns non-zero, this string will indicate the reason why.
509 std::string failure_message;
512 int save_as (SaveAs&);
514 * @param snapshot_name name of the session (use an empty string for the current name)
515 * @param pending save a 'recovery', not full state (default: false)
516 * @param switch_to_snapshot switch to given snapshot after saving (default: false)
517 * @param template_only save a session template (default: false)
518 * @return zero on success
520 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
528 int archive_session (const std::string&, const std::string&, ArchiveEncode compress_audio = FLAC_16BIT, bool only_used_sources = false, Progress* p = 0);
530 int restore_state (std::string snapshot_name);
531 int save_template (std::string template_name, bool replace_existing = false);
532 int save_history (std::string snapshot_name = "");
533 int restore_history (std::string snapshot_name);
534 void remove_state (std::string snapshot_name);
535 void rename_state (std::string old_name, std::string new_name);
536 void remove_pending_capture_state ();
537 int rename (const std::string&);
538 bool get_nsm_state () const { return _under_nsm_control; }
539 void set_nsm_state (bool state) { _under_nsm_control = state; }
540 bool save_default_options ();
542 PBD::Signal1<void,std::string> StateSaved;
543 PBD::Signal0<void> StateReady;
545 /* emitted when session needs to be saved due to some internal
546 * event or condition (i.e. not in response to a user request).
548 * Only one object should
549 * connect to this signal and take responsibility.
551 * Argument is the snapshot name to use when saving.
553 PBD::Signal1<void,std::string> SaveSessionRequested;
555 /* emitted during a session save to allow other entities to add state, via
556 * extra XML, to the session state
558 PBD::Signal0<void> SessionSaveUnderway;
560 std::vector<std::string> possible_states() const;
561 static std::vector<std::string> possible_states (std::string path);
563 XMLNode& get_state();
564 int set_state(const XMLNode& node, int version); // not idempotent
565 XMLNode& get_template();
566 bool export_track_state (boost::shared_ptr<RouteList> rl, const std::string& path);
568 /// The instant xml file is written to the session directory
569 void add_instant_xml (XMLNode&, bool write_to_config = true);
570 XMLNode* instant_xml (const std::string& str);
572 enum StateOfTheState {
577 InitialConnecting = 0x8,
583 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
585 class StateProtector {
587 StateProtector (Session* s) : _session (s) {
588 g_atomic_int_inc (&s->_suspend_save);
591 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
592 while (_session->_save_queued) {
593 _session->_save_queued = false;
594 _session->save_state ("");
602 class ProcessorChangeBlocker {
604 ProcessorChangeBlocker (Session* s, bool rc = true)
606 , _reconfigure_on_delete (rc)
608 g_atomic_int_inc (&s->_ignore_route_processor_changes);
610 ~ProcessorChangeBlocker () {
611 if (g_atomic_int_dec_and_test (&_session->_ignore_route_processor_changes)) {
612 if (_reconfigure_on_delete) {
613 _session->route_processors_changed (RouteProcessorChange ());
619 bool _reconfigure_on_delete;
622 RouteGroup* new_route_group (const std::string&);
623 void add_route_group (RouteGroup *);
624 void remove_route_group (RouteGroup* rg) { if (rg) remove_route_group (*rg); }
625 void remove_route_group (RouteGroup&);
626 void reorder_route_groups (std::list<RouteGroup*>);
628 RouteGroup* route_group_by_name (std::string);
629 RouteGroup& all_route_group() const;
631 PBD::Signal1<void,RouteGroup*> route_group_added;
632 PBD::Signal0<void> route_group_removed;
633 PBD::Signal0<void> route_groups_reordered;
635 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
636 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
641 std::list<RouteGroup*> const & route_groups () const {
642 return _route_groups;
645 /* fundamental operations. duh. */
647 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
650 RouteGroup* route_group,
652 std::string name_template,
653 PresentationInfo::order_t order,
654 TrackMode mode = Normal
657 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
658 const ChanCount& input, const ChanCount& output,
659 boost::shared_ptr<PluginInfo> instrument,
660 Plugin::PresetRecord* pset,
661 RouteGroup* route_group, uint32_t how_many, std::string name_template,
662 PresentationInfo::order_t,
663 TrackMode mode = Normal
666 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);
667 RouteList new_midi_route (RouteGroup* route_group, uint32_t how_many, std::string name_template, boost::shared_ptr<PluginInfo> instrument, Plugin::PresetRecord*, PresentationInfo::Flag, PresentationInfo::order_t);
669 void remove_routes (boost::shared_ptr<RouteList>);
670 void remove_route (boost::shared_ptr<Route>);
672 void resort_routes ();
673 void resort_routes_using (boost::shared_ptr<RouteList>);
675 AudioEngine & engine() { return _engine; }
676 AudioEngine const & engine () const { return _engine; }
678 static std::string default_track_name_pattern (DataType);
682 framepos_t transport_frame () const {return _transport_frame; }
683 framepos_t record_location () const {return _last_record_location; }
684 framepos_t audible_frame () const;
685 framepos_t requested_return_frame() const { return _requested_return_frame; }
686 void set_requested_return_frame(framepos_t return_to);
700 void sync_time_vars();
702 void bbt_time (framepos_t when, Timecode::BBT_Time&);
703 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
704 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
705 void timecode_time (Timecode::Time &);
706 void timecode_time (framepos_t when, Timecode::Time&);
707 void timecode_time_subframes (framepos_t when, Timecode::Time&);
709 void timecode_duration (framecnt_t, Timecode::Time&) const;
710 void timecode_duration_string (char *, size_t len, framecnt_t) const;
712 framecnt_t convert_to_frames (AnyTime const & position);
713 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
715 static PBD::Signal1<void, framepos_t> StartTimeChanged;
716 static PBD::Signal1<void, framepos_t> EndTimeChanged;
718 void request_sync_source (Slave*);
719 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
720 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
721 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
723 double transport_speed() const { return _transport_speed; }
724 bool transport_stopped() const { return _transport_speed == 0.0; }
725 bool transport_rolling() const { return _transport_speed != 0.0; }
727 bool silent () { return _silent; }
729 TempoMap& tempo_map() { return *_tempo_map; }
730 const TempoMap& tempo_map() const { return *_tempo_map; }
732 unsigned int get_xrun_count () const {return _xrun_count; }
733 void reset_xrun_count () {_xrun_count = 0; }
737 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
739 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
740 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
741 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
743 /* source management */
745 void import_files (ImportStatus&);
746 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
747 std::string build_tmp_convert_name (std::string file);
749 boost::shared_ptr<ExportHandler> get_export_handler ();
750 boost::shared_ptr<ExportStatus> get_export_status ();
752 int start_audio_export (framepos_t position, bool realtime = false, bool region_export = false, bool comensate_master_latency = false);
754 PBD::Signal1<int, framecnt_t> ProcessExport;
755 static PBD::Signal2<void,std::string, std::string> Exported;
757 void add_source (boost::shared_ptr<Source>);
758 void remove_source (boost::weak_ptr<Source>);
760 void cleanup_regions();
761 bool can_cleanup_peakfiles () const;
762 int cleanup_peakfiles ();
763 int cleanup_sources (CleanupReport&);
764 int cleanup_trash_sources (CleanupReport&);
766 int destroy_sources (std::list<boost::shared_ptr<Source> >);
768 int remove_last_capture ();
770 /** handlers should return 0 for "everything OK", and any other value for
771 * "cannot setup audioengine".
773 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
775 /** handlers should return -1 for "stop cleanup",
776 0 for "yes, delete this playlist",
777 1 for "no, don't delete this playlist".
779 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
781 /** handlers should return 0 for "ignore the rate mismatch",
782 !0 for "do not use this session"
784 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
786 /** non interactive message */
787 static PBD::Signal2<void, framecnt_t, framecnt_t> NotifyAboutSampleRateMismatch;
789 /** handlers should return !0 for use pending state, 0 for ignore it.
791 static PBD::Signal0<int> AskAboutPendingState;
793 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
794 size_t, std::string const &, uint32_t, bool destructive);
796 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
797 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
799 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
800 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
801 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
802 uint32_t count_sources_by_origin (const std::string&);
804 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
806 /* Curves and AutomationLists (TODO when they go away) */
807 void add_automation_list(AutomationList*);
811 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
812 void audition_playlist ();
813 void audition_region (boost::shared_ptr<Region>);
814 void cancel_audition ();
815 bool is_auditioning () const;
817 PBD::Signal1<void,bool> AuditionActive;
820 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
821 void unregister_lua_function (const std::string& name);
822 std::vector<std::string> registered_lua_functions ();
823 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
824 void scripts_changed (); // called from lua, updates _n_lua_scripts
826 /* flattening stuff */
828 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
829 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
830 boost::shared_ptr<Processor> endpoint,
831 bool include_endpoint, bool for_export, bool for_freeze);
832 int freeze_all (InterThreadInfo&);
834 /* session-wide solo/mute/rec-enable */
836 bool soloing() const { return _non_soloed_outs_muted; }
837 bool listening() const { return _listen_cnt > 0; }
838 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
839 void cancel_all_solo ();
841 static const SessionEvent::RTeventCallback rt_cleanup;
843 void clear_all_solo_state (boost::shared_ptr<RouteList>);
845 /* Control-based methods */
847 void set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition);
848 void set_control (boost::shared_ptr<AutomationControl>, double val, PBD::Controllable::GroupControlDisposition);
850 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
852 PBD::Signal1<void,bool> SoloActive;
853 PBD::Signal0<void> SoloChanged;
854 PBD::Signal0<void> IsolatedChanged;
855 PBD::Signal0<void> MonitorChanged;
857 PBD::Signal0<void> session_routes_reconnected;
859 /* monitor/master out */
861 void add_monitor_section ();
862 void reset_monitor_section ();
863 void remove_monitor_section ();
864 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
866 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
867 boost::shared_ptr<Route> master_out() const { return _master_out; }
869 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
870 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
871 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
872 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
873 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
874 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
875 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
877 static void set_disable_all_loaded_plugins (bool yn) {
878 _disable_all_loaded_plugins = yn;
880 static bool get_disable_all_loaded_plugins() {
881 return _disable_all_loaded_plugins;
883 static void set_bypass_all_loaded_plugins (bool yn) {
884 _bypass_all_loaded_plugins = yn;
886 static bool get_bypass_all_loaded_plugins() {
887 return _bypass_all_loaded_plugins;
890 uint32_t next_send_id();
891 uint32_t next_aux_send_id();
892 uint32_t next_return_id();
893 uint32_t next_insert_id();
894 void mark_send_id (uint32_t);
895 void mark_aux_send_id (uint32_t);
896 void mark_return_id (uint32_t);
897 void mark_insert_id (uint32_t);
898 void unmark_send_id (uint32_t);
899 void unmark_aux_send_id (uint32_t);
900 void unmark_return_id (uint32_t);
901 void unmark_insert_id (uint32_t);
903 /* s/w "RAID" management */
905 boost::optional<framecnt_t> available_capture_duration();
909 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
910 void remove_bundle (boost::shared_ptr<Bundle>);
911 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
913 PBD::Signal0<void> BundleAddedOrRemoved;
917 /* History (for editors, mixers, UIs etc.) */
919 /** Undo some transactions.
920 * @param n Number of transactions to undo.
922 void undo (uint32_t n);
923 /** Redo some transactions.
924 * @param n Number of transactions to undo.
926 void redo (uint32_t n);
928 UndoHistory& history() { return _history; }
930 uint32_t undo_depth() const { return _history.undo_depth(); }
931 uint32_t redo_depth() const { return _history.redo_depth(); }
932 std::string next_undo() const { return _history.next_undo(); }
933 std::string next_redo() const { return _history.next_redo(); }
935 /** begin collecting undo information
937 * This call must always be followed by either
938 * begin_reversible_command() or commit_reversible_command()
940 * @param cmd_name human readable name for the undo operation
942 void begin_reversible_command (const std::string& cmd_name);
943 void begin_reversible_command (GQuark);
944 /** abort an open undo command
945 * This must only be called after begin_reversible_command ()
947 void abort_reversible_command ();
948 /** finalize an undo command and commit pending transactions
950 * This must only be called after begin_reversible_command ()
951 * @param cmd (additional) command to add
953 void commit_reversible_command (Command* cmd = 0);
955 void add_command (Command *const cmd);
957 /** create an StatefulDiffCommand from the given object and add it to the stack.
959 * This function must only be called after begin_reversible_command.
960 * Failing to do so may lead to a crash.
962 * @param sfd the object to diff
963 * @returns the allocated StatefulDiffCommand (already added via add_command)
965 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
967 /** @return The list of operations that are currently in progress */
968 std::list<GQuark> const & current_operations () {
969 return _current_trans_quarks;
972 bool operation_in_progress (GQuark) const;
974 void add_commands (std::vector<Command*> const & cmds);
976 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
978 // these commands are implemented in libs/ardour/session_command.cc
979 Command* memento_command_factory(XMLNode* n);
980 Command* stateful_diff_command_factory (XMLNode *);
981 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
985 boost::shared_ptr<IO> click_io() { return _click_io; }
986 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
988 /* disk, buffer loads */
990 uint32_t playback_load ();
991 uint32_t capture_load ();
995 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
996 void request_cancel_play_range ();
997 bool get_play_range () const { return _play_range; }
999 void maybe_update_session_range (framepos_t, framepos_t);
1002 framecnt_t preroll_samples (framepos_t) const;
1004 void request_preroll_record_punch (framepos_t start, framecnt_t preroll);
1005 void request_preroll_record_trim (framepos_t start, framecnt_t preroll);
1007 framepos_t preroll_record_punch_pos () const { return _preroll_record_punch_pos; }
1008 bool preroll_record_punch_enabled () const { return _preroll_record_punch_pos >= 0; }
1010 framecnt_t preroll_record_trim_len () const { return _preroll_record_trim_len; }
1012 /* temporary hacks to allow selection to be pushed from GUI into backend.
1013 Whenever we move the selection object into libardour, these will go away.
1015 void set_range_selection (framepos_t start, framepos_t end);
1016 void set_object_selection (framepos_t start, framepos_t end);
1017 void clear_range_selection ();
1018 void clear_object_selection ();
1020 /* buffers for gain and pan */
1022 gain_t* gain_automation_buffer () const;
1023 gain_t* trim_automation_buffer () const;
1024 gain_t* send_gain_automation_buffer () const;
1025 pan_t** pan_automation_buffer () const;
1027 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
1031 static int vst_current_loading_id;
1032 static const char* vst_can_do_strings[];
1033 static const int vst_can_do_string_count;
1035 static intptr_t vst_callback (
1044 static PBD::Signal0<void> SendFeedback;
1048 boost::shared_ptr<Speakers> get_speakers ();
1052 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
1054 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
1055 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const ARDOUR::ControllableDescriptor&);
1057 void add_controllable (boost::shared_ptr<PBD::Controllable>);
1058 void remove_controllable (PBD::Controllable*);
1060 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
1062 SessionConfiguration config;
1064 SessionConfiguration* cfg () { return &config; }
1066 bool exporting () const {
1070 bool bounce_processing() const {
1071 return _bounce_processing_active;
1074 /* this is a private enum, but setup_enum_writer() needs it,
1075 and i can't find a way to give that function
1076 friend access. sigh.
1079 enum PostTransportWork {
1080 PostTransportStop = 0x1,
1081 PostTransportDuration = 0x2,
1082 PostTransportLocate = 0x4,
1083 PostTransportRoll = 0x8,
1084 PostTransportAbort = 0x10,
1085 PostTransportOverWrite = 0x20,
1086 PostTransportSpeed = 0x40,
1087 PostTransportAudition = 0x80,
1088 PostTransportReverse = 0x100,
1089 PostTransportInputChange = 0x200,
1090 PostTransportCurveRealloc = 0x400,
1091 PostTransportClearSubstate = 0x800,
1092 PostTransportAdjustPlaybackBuffering = 0x1000,
1093 PostTransportAdjustCaptureBuffering = 0x2000
1102 SlaveState slave_state() const { return _slave_state; }
1103 Slave* slave() const { return _slave; }
1105 boost::shared_ptr<SessionPlaylists> playlists;
1107 void send_mmc_locate (framepos_t);
1108 void queue_full_time_code () { _send_timecode_update = true; }
1109 void queue_song_position_pointer () { /* currently does nothing */ }
1111 bool step_editing() const { return (_step_editors > 0); }
1113 void request_suspend_timecode_transmission ();
1114 void request_resume_timecode_transmission ();
1115 bool timecode_transmission_suspended () const;
1117 std::vector<std::string> source_search_path(DataType) const;
1118 void ensure_search_path_includes (const std::string& path, DataType type);
1119 void remove_dir_from_search_path (const std::string& path, DataType type);
1121 std::list<std::string> unknown_processors () const;
1123 /** Emitted when a feedback cycle has been detected within Ardour's signal
1124 processing path. Until it is fixed (by the user) some (unspecified)
1125 routes will not be run.
1127 static PBD::Signal0<void> FeedbackDetected;
1129 /** Emitted when a graph sort has successfully completed, which means
1130 that it has no feedback cycles.
1132 static PBD::Signal0<void> SuccessfulGraphSort;
1134 /* handlers can return an integer value:
1135 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1136 to modify the search path and we should try to find it again.
1137 1: quit entire session load
1138 2: as 0, but don't ask about other missing files
1139 3: don't ask about other missing files, and just mark this one missing
1140 -1: just mark this one missing
1141 any other value: as -1
1143 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1145 /** Emitted when the session wants Ardour to quit */
1146 static PBD::Signal0<void> Quit;
1148 /** Emitted when Ardour is asked to load a session in an older session
1149 * format, and makes a backup copy.
1151 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1153 SceneChanger* scene_changer() const { return _scene_changer; }
1155 /* asynchronous MIDI control ports */
1157 boost::shared_ptr<Port> midi_input_port () const;
1158 boost::shared_ptr<Port> midi_output_port () const;
1159 boost::shared_ptr<Port> mmc_output_port () const;
1160 boost::shared_ptr<Port> mmc_input_port () const;
1161 boost::shared_ptr<Port> scene_input_port () const;
1162 boost::shared_ptr<Port> scene_output_port () const;
1164 /* synchronous MIDI ports used for synchronization */
1166 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1167 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1168 boost::shared_ptr<MidiPort> mtc_output_port () const;
1169 boost::shared_ptr<MidiPort> mtc_input_port () const;
1170 boost::shared_ptr<Port> ltc_input_port() const;
1171 boost::shared_ptr<Port> ltc_output_port() const;
1173 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1174 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1176 MIDI::MachineControl& mmc() { return *_mmc; }
1178 void reconnect_midi_scene_ports (bool);
1179 void reconnect_mtc_ports ();
1180 void reconnect_mmc_ports (bool);
1182 void reconnect_ltc_input ();
1183 void reconnect_ltc_output ();
1185 VCAManager& vca_manager() { return *_vca_manager; }
1187 void auto_connect_thread_wakeup ();
1191 friend class AudioEngine;
1192 void set_block_size (pframes_t nframes);
1193 void set_frame_rate (framecnt_t nframes);
1194 #ifdef USE_TRACKS_CODE_FEATURES
1195 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1200 void schedule_curve_reallocation ();
1201 void update_latency_compensation (bool force = false);
1204 int create (const std::string& mix_template, BusProfile*);
1207 static guint _name_id_counter;
1208 static void init_name_id_counter (guint n);
1209 static unsigned int name_id_counter ();
1211 /* stuff used in process() should be close together to
1215 typedef void (Session::*process_function_type)(pframes_t);
1217 AudioEngine& _engine;
1218 mutable gint processing_prohibited;
1219 process_function_type process_function;
1220 process_function_type last_process_function;
1221 bool _bounce_processing_active;
1222 bool waiting_for_sync_offset;
1223 framecnt_t _base_frame_rate; // sample-rate of the session at creation time, "native" SR
1224 framecnt_t _nominal_frame_rate; // overridden by audioengine setting
1225 framecnt_t _current_frame_rate; // this includes video pullup offset
1226 int transport_sub_state;
1227 mutable gint _record_status;
1228 framepos_t _transport_frame;
1229 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1230 bool _session_range_end_is_free;
1234 // varispeed playback
1235 double _transport_speed;
1236 double _default_transport_speed;
1237 double _last_transport_speed;
1238 double _signalled_varispeed;
1239 double _target_transport_speed;
1240 CubicInterpolation interpolation;
1242 bool auto_play_legal;
1243 framepos_t _last_slave_transport_frame;
1244 framecnt_t maximum_output_latency;
1245 framepos_t _requested_return_frame;
1246 pframes_t current_block_size;
1247 framecnt_t _worst_output_latency;
1248 framecnt_t _worst_input_latency;
1249 framecnt_t _worst_track_latency;
1250 bool _have_captured;
1251 bool _non_soloed_outs_muted;
1253 uint32_t _listen_cnt;
1254 uint32_t _solo_isolated_cnt;
1257 bool _under_nsm_control;
1258 unsigned int _xrun_count;
1260 void mtc_status_changed (bool);
1261 PBD::ScopedConnection mtc_status_connection;
1262 void ltc_status_changed (bool);
1263 PBD::ScopedConnection ltc_status_connection;
1265 void initialize_latencies ();
1266 void set_worst_io_latencies ();
1267 void set_worst_playback_latency ();
1268 void set_worst_capture_latency ();
1269 void set_worst_io_latencies_x (IOChange, void *) {
1270 set_worst_io_latencies ();
1272 void post_capture_latency ();
1273 void post_playback_latency ();
1275 void update_latency_compensation_proxy (void* ignored);
1277 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1279 void process_scrub (pframes_t);
1280 void process_without_events (pframes_t);
1281 void process_with_events (pframes_t);
1282 void process_audition (pframes_t);
1283 void process_export (pframes_t);
1284 void process_export_fw (pframes_t);
1286 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1287 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1288 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1290 static const framecnt_t bounce_chunk_size;
1292 /* slave tracking */
1294 static const int delta_accumulator_size = 25;
1295 int delta_accumulator_cnt;
1296 int32_t delta_accumulator[delta_accumulator_size];
1297 int32_t average_slave_delta;
1299 bool have_first_delta_accumulator;
1301 SlaveState _slave_state;
1304 framepos_t slave_wait_end;
1306 void reset_slave_state ();
1307 bool follow_slave (pframes_t);
1308 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1309 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1310 void follow_slave_silently (pframes_t nframes, float slave_speed);
1312 void switch_to_sync_source (SyncSource); /* !RT context */
1313 void drop_sync_source (); /* !RT context */
1314 void use_sync_source (Slave*); /* RT context */
1316 bool post_export_sync;
1317 framepos_t post_export_position;
1320 bool _export_rolling;
1321 bool _realtime_export;
1322 bool _region_export;
1323 framepos_t _export_preroll;
1324 framepos_t _export_latency;
1326 boost::shared_ptr<ExportHandler> export_handler;
1327 boost::shared_ptr<ExportStatus> export_status;
1330 int stop_audio_export ();
1331 void finalize_audio_export ();
1332 void finalize_export_internal (bool stop_freewheel);
1333 bool _pre_export_mmc_enabled;
1335 PBD::ScopedConnection export_freewheel_connection;
1337 void get_track_statistics ();
1338 int process_routes (pframes_t, bool& need_butler);
1339 int silent_process_routes (pframes_t, bool& need_butler);
1341 /** @return 1 if there is a pending declick fade-in,
1342 -1 if there is a pending declick fade-out,
1343 0 if there is no pending declick.
1345 int get_transport_declick_required () {
1346 if (transport_sub_state & PendingDeclickIn) {
1347 transport_sub_state &= ~PendingDeclickIn;
1349 } else if (transport_sub_state & PendingDeclickOut) {
1350 /* XXX: not entirely sure why we don't clear this */
1352 } else if (transport_sub_state & PendingLoopDeclickOut) {
1353 /* Return the declick out first ... */
1354 transport_sub_state &= ~PendingLoopDeclickOut;
1356 } else if (transport_sub_state & PendingLoopDeclickIn) {
1357 /* ... then the declick in on the next call */
1358 transport_sub_state &= ~PendingLoopDeclickIn;
1365 bool maybe_stop (framepos_t limit);
1366 bool maybe_sync_start (pframes_t &);
1368 void check_declick_out ();
1374 /** Number of process frames since the last MTC output (when sending MTC); used to
1375 * know when to send full MTC messages every so often.
1377 pframes_t _pframes_since_last_mtc;
1380 framepos_t last_loopend;
1382 boost::scoped_ptr<SessionDirectory> _session_dir;
1385 void graph_reordered ();
1387 /** current snapshot name, without the .ardour suffix */
1388 void set_snapshot_name (const std::string &);
1389 void save_snapshot_name (const std::string &);
1390 std::string _current_snapshot_name;
1392 XMLTree* state_tree;
1393 bool state_was_pending;
1394 StateOfTheState _state_of_the_state;
1396 friend class StateProtector;
1397 gint _suspend_save; /* atomic */
1398 volatile bool _save_queued;
1399 Glib::Threads::Mutex save_state_lock;
1400 Glib::Threads::Mutex peak_cleanup_lock;
1402 int load_options (const XMLNode&);
1403 int load_state (std::string snapshot_name);
1405 framepos_t _last_roll_location;
1406 /** the session frame time at which we last rolled, located, or changed transport direction */
1407 framepos_t _last_roll_or_reversal_location;
1408 framepos_t _last_record_location;
1410 bool pending_locate_roll;
1411 framepos_t pending_locate_frame;
1412 bool pending_locate_flush;
1414 bool pending_auto_loop;
1416 PBD::ReallocPool _mempool;
1418 Glib::Threads::Mutex lua_lock;
1419 luabridge::LuaRef * _lua_run;
1420 luabridge::LuaRef * _lua_add;
1421 luabridge::LuaRef * _lua_del;
1422 luabridge::LuaRef * _lua_list;
1423 luabridge::LuaRef * _lua_load;
1424 luabridge::LuaRef * _lua_save;
1425 luabridge::LuaRef * _lua_cleanup;
1426 uint32_t _n_lua_scripts;
1429 void try_run_lua (pframes_t);
1433 static const PostTransportWork ProcessCannotProceedMask =
1435 PostTransportInputChange|
1437 PostTransportReverse|
1438 PostTransportCurveRealloc|
1439 PostTransportAudition|
1440 PostTransportLocate|
1442 PostTransportClearSubstate);
1444 gint _post_transport_work; /* accessed only atomic ops */
1445 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1446 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1447 void add_post_transport_work (PostTransportWork ptw);
1449 void schedule_playback_buffering_adjustment ();
1450 void schedule_capture_buffering_adjustment ();
1452 uint32_t cumulative_rf_motion;
1455 void set_rf_speed (float speed);
1456 void reset_rf_scale (framecnt_t frames_moved);
1458 Locations* _locations;
1459 void location_added (Location*);
1460 void location_removed (Location*);
1461 void locations_changed ();
1462 void _locations_changed (const Locations::LocationList&);
1464 void update_skips (Location*, bool consolidate);
1465 void update_marks (Location* loc);
1466 void consolidate_skips (Location*);
1467 void sync_locations_to_skips ();
1468 void _sync_locations_to_skips ();
1470 PBD::ScopedConnectionList skip_update_connections;
1471 bool _ignore_skips_updates;
1473 PBD::ScopedConnectionList punch_connections;
1474 void auto_punch_start_changed (Location *);
1475 void auto_punch_end_changed (Location *);
1476 void auto_punch_changed (Location *);
1478 PBD::ScopedConnectionList loop_connections;
1479 void auto_loop_changed (Location *);
1480 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1482 int ensure_engine (uint32_t desired_sample_rate, bool);
1483 void pre_engine_init (std::string path);
1484 int post_engine_init ();
1485 int immediately_post_engine ();
1486 void remove_empty_sounds ();
1488 void session_loaded ();
1490 void setup_midi_control ();
1491 int midi_read (MIDI::Port *);
1493 void enable_record ();
1495 void increment_transport_position (framecnt_t val) {
1496 if (max_framepos - val < _transport_frame) {
1497 _transport_frame = max_framepos;
1499 _transport_frame += val;
1503 void decrement_transport_position (framecnt_t val) {
1504 if (val < _transport_frame) {
1505 _transport_frame -= val;
1507 _transport_frame = 0;
1511 void post_transport_motion ();
1512 static void *session_loader_thread (void *arg);
1516 /* Signal Forwarding */
1517 void emit_route_signals ();
1518 void emit_thread_run ();
1519 static void *emit_thread (void *);
1520 void emit_thread_start ();
1521 void emit_thread_terminate ();
1523 pthread_t _rt_emit_thread;
1524 bool _rt_thread_active;
1526 pthread_mutex_t _rt_emit_mutex;
1527 pthread_cond_t _rt_emit_cond;
1528 bool _rt_emit_pending;
1530 /* Auto Connect Thread */
1531 static void *auto_connect_thread (void *);
1532 void auto_connect_thread_run ();
1533 void auto_connect_thread_start ();
1534 void auto_connect_thread_terminate ();
1536 pthread_t _auto_connect_thread;
1537 gint _ac_thread_active;
1538 pthread_mutex_t _auto_connect_mutex;
1539 pthread_cond_t _auto_connect_cond;
1541 struct AutoConnectRequest {
1543 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1544 const ChanCount& is,
1545 const ChanCount& os,
1546 const ChanCount& io,
1547 const ChanCount& oo)
1548 : route (boost::weak_ptr<Route> (r))
1549 , connect_inputs (ci)
1553 , output_offset (oo)
1556 boost::weak_ptr <Route> route;
1557 bool connect_inputs;
1558 ChanCount input_start;
1559 ChanCount output_start;
1560 ChanCount input_offset;
1561 ChanCount output_offset;
1564 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1565 Glib::Threads::Mutex _auto_connect_queue_lock;
1566 AutoConnectQueue _auto_connect_queue;
1567 guint _latency_recompute_pending;
1569 void get_physical_ports (std::vector<std::string>& inputs, std::vector<std::string>& outputs, DataType type,
1570 MidiPortFlags include = MidiPortFlags (0),
1571 MidiPortFlags exclude = MidiPortFlags (0));
1573 void auto_connect (const AutoConnectRequest&);
1574 void queue_latency_recompute ();
1576 /* SessionEventManager interface */
1578 void process_event (SessionEvent*);
1579 void set_next_event ();
1580 void cleanup_event (SessionEvent*,int);
1582 /* MIDI Machine Control */
1585 void spp_continue ();
1588 void mmc_deferred_play (MIDI::MachineControl &);
1589 void mmc_stop (MIDI::MachineControl &);
1590 void mmc_step (MIDI::MachineControl &, int);
1591 void mmc_pause (MIDI::MachineControl &);
1592 void mmc_record_pause (MIDI::MachineControl &);
1593 void mmc_record_strobe (MIDI::MachineControl &);
1594 void mmc_record_exit (MIDI::MachineControl &);
1595 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1596 void mmc_fast_forward (MIDI::MachineControl &);
1597 void mmc_rewind (MIDI::MachineControl &);
1598 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1599 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1600 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1602 struct timeval last_mmc_step;
1605 typedef boost::function<bool()> MidiTimeoutCallback;
1606 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1608 MidiTimeoutList midi_timeouts;
1609 bool mmc_step_timeout ();
1610 void send_immediate_mmc (MIDI::MachineControlCommand);
1612 MIDI::byte mtc_msg[16];
1613 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1614 MIDI::byte midi_msg[16];
1615 double outbound_mtc_timecode_frame;
1616 Timecode::Time transmitting_timecode_time;
1617 int next_quarter_frame_to_send;
1619 double _samples_per_timecode_frame; /* has to be floating point because of drop frame */
1620 framecnt_t _frames_per_hour;
1621 framecnt_t _timecode_frames_per_hour;
1623 /* cache the most-recently requested time conversions. This helps when we
1624 * have multiple clocks showing the same time (e.g. the transport frame) */
1625 bool last_timecode_valid;
1626 framepos_t last_timecode_when;
1627 Timecode::Time last_timecode;
1629 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1631 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1633 LTCEncoder* ltc_encoder;
1634 ltcsnd_sample_t* ltc_enc_buf;
1636 Timecode::TimecodeFormat ltc_enc_tcformat;
1637 int32_t ltc_buf_off;
1638 int32_t ltc_buf_len;
1641 int32_t ltc_enc_byte;
1642 framepos_t ltc_enc_pos;
1644 framepos_t ltc_enc_off;
1646 framepos_t ltc_prev_cycle;
1648 framepos_t ltc_timecode_offset;
1649 bool ltc_timecode_negative_offset;
1651 LatencyRange ltc_out_latency;
1653 void ltc_tx_initialize();
1654 void ltc_tx_cleanup();
1655 void ltc_tx_reset();
1656 void ltc_tx_resync_latency();
1657 void ltc_tx_recalculate_position();
1658 void ltc_tx_parse_offset();
1659 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1661 void reset_record_status ();
1663 int no_roll (pframes_t nframes);
1664 int fail_roll (pframes_t nframes);
1666 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1667 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1669 MidiControlUI* midi_control_ui;
1671 int start_midi_thread ();
1673 void set_play_loop (bool yn, double speed);
1674 void unset_play_loop ();
1675 void overwrite_some_buffers (Track *);
1676 void flush_all_inserts ();
1677 int micro_locate (framecnt_t distance);
1678 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1679 void start_locate (framepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1680 void force_locate (framepos_t frame, bool with_roll = false);
1681 void set_track_speed (Track *, double speed);
1682 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1683 void stop_transport (bool abort = false, bool clear_state = false);
1684 void start_transport ();
1685 void realtime_stop (bool abort, bool clear_state);
1686 void realtime_locate ();
1687 void non_realtime_start_scrub ();
1688 void non_realtime_set_speed ();
1689 void non_realtime_locate ();
1690 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1691 void non_realtime_overwrite (int entry_request_count, bool& finished);
1692 void post_transport ();
1693 void engine_halted ();
1694 void xrun_recovery ();
1695 void set_track_loop (bool);
1696 bool select_playhead_priority_target (framepos_t&);
1697 void follow_playhead_priority ();
1699 /* These are synchronous and so can only be called from within the process
1703 int send_full_time_code (framepos_t, pframes_t nframes);
1704 void send_song_position_pointer (framepos_t);
1706 TempoMap *_tempo_map;
1707 void tempo_map_changed (const PBD::PropertyChange&);
1708 void gui_tempo_map_changed ();
1710 /* edit/mix groups */
1712 int load_route_groups (const XMLNode&, int);
1714 std::list<RouteGroup *> _route_groups;
1715 RouteGroup* _all_route_group;
1719 boost::shared_ptr<Graph> _process_graph;
1721 SerializedRCUManager<RouteList> routes;
1723 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save, PresentationInfo::order_t);
1724 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect, PresentationInfo::order_t);
1725 bool _adding_routes_in_progress;
1726 bool _reconnecting_routes_in_progress;
1727 bool _route_deletion_in_progress;
1729 uint32_t destructive_index;
1731 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1732 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1734 void route_processors_changed (RouteProcessorChange);
1736 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1737 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1738 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1739 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1741 /* track numbering */
1743 void reassign_track_numbers ();
1744 uint32_t _track_number_decimals;
1746 /* solo/mute/notifications */
1748 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1749 void route_mute_changed ();
1750 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1751 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1753 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1755 void listen_position_changed ();
1756 void solo_control_mode_changed ();
1758 /* REGION MANAGEMENT */
1760 mutable Glib::Threads::Mutex region_lock;
1762 int load_regions (const XMLNode& node);
1763 int load_compounds (const XMLNode& node);
1765 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1766 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1767 void route_group_property_changed (RouteGroup *);
1771 mutable Glib::Threads::Mutex source_lock;
1774 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1777 void reset_write_sources (bool mark_write_complete, bool force = false);
1782 int load_sources (const XMLNode& node);
1783 XMLNode& get_sources_as_xml ();
1785 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1789 void remove_playlist (boost::weak_ptr<Playlist>);
1790 void track_playlist_changed (boost::weak_ptr<Track>);
1791 void playlist_region_added (boost::weak_ptr<Region>);
1792 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1793 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1795 /* CURVES and AUTOMATION LISTS */
1796 std::map<PBD::ID, AutomationList*> automation_lists;
1798 /* DEFAULT FADE CURVES */
1800 float default_fade_steepness;
1801 float default_fade_msecs;
1805 boost::shared_ptr<Auditioner> auditioner;
1806 void set_audition (boost::shared_ptr<Region>);
1807 void non_realtime_set_audition ();
1808 boost::shared_ptr<Region> pending_audition_region;
1814 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1816 /* INSERT AND SEND MANAGEMENT */
1818 boost::dynamic_bitset<uint32_t> send_bitset;
1819 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1820 boost::dynamic_bitset<uint32_t> return_bitset;
1821 boost::dynamic_bitset<uint32_t> insert_bitset;
1825 struct space_and_path {
1826 uint32_t blocks; ///< 4kB blocks
1827 bool blocks_unknown; ///< true if blocks is unknown
1832 , blocks_unknown (true)
1836 struct space_and_path_ascending_cmp {
1837 bool operator() (space_and_path a, space_and_path b) {
1838 if (a.blocks_unknown != b.blocks_unknown) {
1839 return !a.blocks_unknown;
1841 return a.blocks > b.blocks;
1845 void setup_raid_path (std::string path);
1847 std::vector<space_and_path> session_dirs;
1848 std::vector<space_and_path>::iterator last_rr_session_dir;
1849 uint32_t _total_free_4k_blocks;
1850 /** If this is true, _total_free_4k_blocks is not definite,
1851 as one or more of the session directories' filesystems
1852 could not report free space.
1854 bool _total_free_4k_blocks_uncertain;
1855 Glib::Threads::Mutex space_lock;
1857 bool no_questions_about_missing_files;
1859 std::string get_best_session_directory_for_new_audio ();
1861 mutable gint _playback_load;
1862 mutable gint _capture_load;
1866 SerializedRCUManager<BundleList> _bundles;
1867 XMLNode* _bundle_xml_node;
1868 int load_bundles (XMLNode const &);
1870 UndoHistory _history;
1871 /** current undo transaction, or 0 */
1872 UndoTransaction* _current_trans;
1873 /** GQuarks to describe the reversible commands that are currently in progress.
1874 * These may be nested, in which case more recently-started commands are toward
1875 * the front of the list.
1877 std::list<GQuark> _current_trans_quarks;
1879 int backend_sync_callback (TransportState, framepos_t);
1881 void process_rtop (SessionEvent*);
1883 void update_latency (bool playback);
1885 XMLNode& state(bool);
1888 typedef std::list<Click*> Clicks;
1891 boost::shared_ptr<IO> _click_io;
1892 boost::shared_ptr<Amp> _click_gain;
1894 Sample* click_emphasis_data;
1895 framecnt_t click_length;
1896 framecnt_t click_emphasis_length;
1897 mutable Glib::Threads::RWLock click_lock;
1899 static const Sample default_click[];
1900 static const framecnt_t default_click_length;
1901 static const Sample default_click_emphasis[];
1902 static const framecnt_t default_click_emphasis_length;
1905 framepos_t _clicks_cleared;
1906 void setup_click_sounds (int which);
1907 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1908 void clear_clicks ();
1909 void click (framepos_t start, framecnt_t nframes);
1910 void run_click (framepos_t start, framecnt_t nframes);
1911 void add_click (framepos_t pos, bool emphasis);
1912 framecnt_t _count_in_samples;
1914 std::vector<Route*> master_outs;
1916 /* range playback */
1918 std::list<AudioRange> current_audio_range;
1920 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1921 void unset_play_range ();
1923 /* temporary hacks to allow selection to be pushed from GUI into backend
1924 Whenever we move the selection object into libardour, these will go away.
1926 Evoral::Range<framepos_t> _range_selection;
1927 Evoral::Range<framepos_t> _object_selection;
1929 void unset_preroll_record_punch ();
1930 void unset_preroll_record_trim ();
1932 framepos_t _preroll_record_punch_pos;
1933 framecnt_t _preroll_record_trim_len;
1938 boost::shared_ptr<Route> _master_out;
1939 boost::shared_ptr<Route> _monitor_out;
1941 void auto_connect_master_bus ();
1943 /* Windows VST support */
1945 long _windows_vst_callback (
1954 int find_all_sources (std::string path, std::set<std::string>& result);
1955 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1957 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1958 Glib::Threads::Mutex controllables_lock;
1959 Controllables controllables;
1961 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1963 void reset_native_file_format();
1964 bool first_file_data_format_reset;
1965 bool first_file_header_format_reset;
1967 void config_changed (std::string, bool);
1969 XMLNode& get_control_protocol_state ();
1971 void set_history_depth (uint32_t depth);
1973 static bool _disable_all_loaded_plugins;
1974 static bool _bypass_all_loaded_plugins;
1976 mutable bool have_looped; ///< Used in ::audible_frame(*)
1978 void update_route_record_state ();
1979 gint _have_rec_enabled_track;
1980 gint _have_rec_disabled_track;
1982 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1984 /* realtime "apply to set of routes" operations */
1985 template<typename T> SessionEvent*
1986 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1987 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1988 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1989 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1990 ev->rt_return = after;
1991 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1996 /* specialized version realtime "apply to set of routes" operations */
1997 template<typename T1, typename T2> SessionEvent*
1998 get_rt_event (boost::shared_ptr<RouteList> rl, T1 t1arg, T2 t2arg, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1999 void (Session::*method) (boost::shared_ptr<RouteList>, T1, T2, PBD::Controllable::GroupControlDisposition)) {
2000 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2001 ev->rt_slot = boost::bind (method, this, rl, t1arg, t2arg, group_override);
2002 ev->rt_return = after;
2003 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2008 /* specialized version realtime "apply to set of controls" operations */
2009 SessionEvent* get_rt_event (boost::shared_ptr<ControlList> cl, double arg, PBD::Controllable::GroupControlDisposition group_override) {
2010 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2011 ev->rt_slot = boost::bind (&Session::rt_set_controls, this, cl, arg, group_override);
2012 ev->rt_return = Session::rt_cleanup;
2013 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2018 void rt_set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition group_override);
2019 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
2021 /** temporary list of Diskstreams used only during load of 2.X sessions */
2022 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
2024 void set_session_range_location (framepos_t, framepos_t);
2026 void setup_midi_machine_control ();
2028 void step_edit_status_change (bool);
2029 uint32_t _step_editors;
2031 /** true if timecode transmission by the transport is suspended, otherwise false */
2032 mutable gint _suspend_timecode_transmission;
2034 void update_locations_after_tempo_map_change (const Locations::LocationList &);
2036 void start_time_changed (framepos_t);
2037 void end_time_changed (framepos_t);
2039 void set_track_monitor_input_status (bool);
2040 framepos_t compute_stop_limit () const;
2042 boost::shared_ptr<Speakers> _speakers;
2043 void load_nested_sources (const XMLNode& node);
2045 /** The directed graph of routes that is currently being used for audio processing
2046 and solo/mute computations.
2048 GraphEdges _current_route_graph;
2050 void ensure_route_presentation_info_gap (PresentationInfo::order_t, uint32_t gap_size);
2052 friend class ProcessorChangeBlocker;
2053 gint _ignore_route_processor_changes; /* atomic */
2055 MidiClockTicker* midi_clock;
2057 boost::shared_ptr<IO> _ltc_input;
2058 boost::shared_ptr<IO> _ltc_output;
2060 /* Scene Changing */
2061 SceneChanger* _scene_changer;
2063 /* persistent, non-track related MIDI ports */
2064 MidiPortManager* _midi_ports;
2065 MIDI::MachineControl* _mmc;
2068 void setup_click ();
2069 void setup_click_state (const XMLNode*);
2070 void setup_bundles ();
2072 void save_as_bring_callback (uint32_t, uint32_t, std::string);
2074 static const uint32_t session_end_shift;
2076 std::string _template_state_dir;
2078 VCAManager* _vca_manager;
2080 boost::shared_ptr<Route> get_midi_nth_route_by_id (PresentationInfo::order_t n) const;
2082 std::string created_with;
2084 void midi_track_presentation_info_changed (PBD::PropertyChange const &, boost::weak_ptr<MidiTrack>);
2085 void rewire_selected_midi (boost::shared_ptr<MidiTrack>);
2086 void rewire_midi_selection_ports ();
2087 boost::weak_ptr<MidiTrack> current_midi_target;
2091 } // namespace ARDOUR
2093 #endif /* __ardour_session_h__ */