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;
91 class ControllableDescriptor;
106 class AudioFileSource;
111 class AutomationList;
124 class MidiClockTicker;
126 class MidiPortManager;
145 class SessionDirectory;
146 class SessionMetadata;
147 class SessionPlaylists;
154 class WindowsVSTPlugin;
156 extern void setup_enum_writer ();
158 class LIBARDOUR_API SessionException: public std::exception {
160 explicit SessionException(const std::string msg) : _message(msg) {}
161 virtual ~SessionException() throw() {}
163 virtual const char* what() const throw() { return _message.c_str(); }
166 std::string _message;
169 /** Ardour Session */
170 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
179 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
180 the bus profile can be null if no master out bus is required.
183 Session (AudioEngine&,
184 const std::string& fullpath,
185 const std::string& snapshot_name,
186 BusProfile* bus_profile = 0,
187 std::string mix_template = "");
191 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format);
192 static std::string get_snapshot_from_instant (const std::string& session_dir);
194 /** a monotonic counter used for naming user-visible things uniquely
195 * (curently the sidechain port).
196 * Use sparingly to keep the numbers low, prefer PBD::ID for all
197 * internal, not user-visible IDs */
198 static unsigned int next_name_id ();
200 std::string path() const { return _path; }
201 std::string name() const { return _name; }
202 std::string snap_name() const { return _current_snapshot_name; }
203 std::string raid_path () const;
204 bool path_is_within_session (const std::string&);
206 bool writable() const { return _writable; }
209 bool dirty() const { return _state_of_the_state & Dirty; }
210 void set_deletion_in_progress ();
211 void clear_deletion_in_progress ();
212 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
213 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
214 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
215 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
216 bool loading () const { return _state_of_the_state & Loading; }
218 PBD::Signal0<void> DirtyChanged;
220 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
222 static PBD::Signal1<void,std::string> Dialog;
224 PBD::Signal0<void> BatchUpdateStart;
225 PBD::Signal0<void> BatchUpdateEnd;
227 int ensure_subdirs ();
229 std::string automation_dir () const; ///< Automation data
230 std::string analysis_dir () const; ///< Analysis data
231 std::string plugins_dir () const; ///< Plugin state
232 std::string externals_dir () const; ///< Links to external files
234 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
236 bool audio_source_name_is_unique (const std::string& name);
237 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);
238 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
239 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
240 std::string new_midi_source_path (const std::string&);
241 /** create a new track or bus from a template (XML path)
242 * @param how_many how many tracks or busses to create
243 * @param template_path path to xml template file
244 * @param name name (prefix) of the route to create
245 * @param pd Playlist disposition
246 * @return list of newly created routes
248 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path, const std::string& name, PlaylistDisposition pd = NewPlaylist);
249 RouteList new_route_from_template (uint32_t how_many, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
250 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path, uint32_t channels);
252 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
254 void process (pframes_t nframes);
256 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
257 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
258 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
259 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
260 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
262 bool have_rec_enabled_track () const;
263 bool have_rec_disabled_track () const;
265 bool have_captured() const { return _have_captured; }
267 void refill_all_track_buffers ();
268 Butler* butler() { return _butler; }
269 void butler_transport_work ();
271 void refresh_disk_space ();
273 int load_diskstreams_2X (XMLNode const &, int);
275 int load_routes (const XMLNode&, int);
276 boost::shared_ptr<RouteList> get_routes() const {
277 return routes.reader ();
280 boost::shared_ptr<RouteList> get_tracks() const;
281 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
282 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
284 uint32_t nroutes() const { return routes.reader()->size(); }
285 uint32_t ntracks () const;
286 uint32_t nbusses () const;
288 boost::shared_ptr<BundleList> bundles () {
289 return _bundles.reader ();
292 struct LIBARDOUR_API RoutePublicOrderSorter {
293 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
296 void notify_presentation_info_change ();
298 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
299 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
300 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
302 static char session_name_is_legal (const std::string&);
303 bool io_name_is_legal (const std::string&) const;
304 boost::shared_ptr<Route> route_by_name (std::string) const;
305 boost::shared_ptr<Route> route_by_id (PBD::ID) const;
306 boost::shared_ptr<Stripable> get_remote_nth_stripable (uint16_t n, PresentationInfo::Flag) const;
307 boost::shared_ptr<Route> get_remote_nth_route (uint16_t n) const;
308 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt) const;
309 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID) const;
310 void routes_using_input_from (const std::string& str, RouteList& rl);
312 bool route_name_unique (std::string) const;
313 bool route_name_internal (std::string) const;
315 uint32_t track_number_decimals () const {
316 return _track_number_decimals;
319 bool get_record_enabled() const {
320 return (record_status () >= Enabled);
323 RecordState record_status() const {
324 return (RecordState) g_atomic_int_get (&_record_status);
327 bool actively_recording () const {
328 return record_status() == Recording;
331 bool record_enabling_legal () const;
332 void maybe_enable_record ();
333 void disable_record (bool rt_context, bool force = false);
334 void step_back_from_record ();
336 void set_all_tracks_record_enabled(bool);
338 void maybe_write_autosave ();
340 /* Emitted when all i/o connections are complete */
342 PBD::Signal0<void> IOConnectionsComplete;
344 /* Timecode status signals */
345 PBD::Signal1<void, bool> MTCSyncStateChanged;
346 PBD::Signal1<void, bool> LTCSyncStateChanged;
348 /* Record status signals */
350 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
351 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
352 from the previous signal and session state.
354 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
356 /* Emited when session is loaded */
357 PBD::Signal0<void> SessionLoaded;
359 /* Transport mechanism signals */
361 /** Emitted on the following changes in transport state:
362 * - stop (from the butler thread)
363 * - change in whether or not we are looping (from the process thread)
364 * - change in the play range (from the process thread)
365 * - start (from the process thread)
368 PBD::Signal0<void> TransportStateChange;
370 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
371 PBD::Signal1<void,framepos_t> Xrun;
372 PBD::Signal0<void> TransportLooped;
374 /** emitted when a locate has occurred */
375 PBD::Signal0<void> Located;
377 PBD::Signal1<void,RouteList&> RouteAdded;
378 /** Emitted when a property of one of our route groups changes.
379 * The parameter is the RouteGroup that has changed.
381 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
382 /** Emitted when a route is added to one of our route groups.
383 * First parameter is the RouteGroup, second is the route.
385 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
386 /** Emitted when a route is removed from one of our route groups.
387 * First parameter is the RouteGroup, second is the route.
389 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
391 /* Step Editing status changed */
392 PBD::Signal1<void,bool> StepEditStatusChange;
394 /* Timecode state signals */
395 PBD::Signal0<void> MtcOrLtcInputPortChanged;
397 void queue_event (SessionEvent*);
399 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
400 void request_bounded_roll (framepos_t start, framepos_t end);
401 void request_stop (bool abort = false, bool clear_state = false);
402 void request_locate (framepos_t frame, bool with_roll = false);
404 void request_play_loop (bool yn, bool leave_rolling = false);
405 bool get_play_loop () const { return play_loop; }
407 framepos_t last_transport_start () const { return _last_roll_location; }
410 void use_rf_shuttle_speed ();
411 void allow_auto_play (bool yn);
412 void request_transport_speed (double speed, bool as_default = true);
413 void request_transport_speed_nonzero (double, bool as_default = true);
414 void request_overwrite_buffer (Track *);
415 void adjust_playback_buffering();
416 void adjust_capture_buffering();
417 void request_track_speed (Track *, double speed);
418 void request_input_change_handling ();
420 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
421 bool transport_locked () const;
425 framepos_t current_end_frame () const;
426 framepos_t current_start_frame () const;
427 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
428 framecnt_t frame_rate () const { return _current_frame_rate; }
429 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
430 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
431 framecnt_t frames_per_hour () const { return _frames_per_hour; }
433 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
434 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
436 MIDI::byte get_mtc_timecode_bits() const {
437 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
440 double timecode_frames_per_second() const;
441 bool timecode_drop_frames() const;
445 Locations *locations() { return _locations; }
447 PBD::Signal1<void,Location*> auto_loop_location_changed;
448 PBD::Signal1<void,Location*> auto_punch_location_changed;
449 PBD::Signal0<void> locations_modified;
451 void set_auto_punch_location (Location *);
452 void set_auto_loop_location (Location *);
453 void set_session_extents (framepos_t start, framepos_t end);
454 int location_name(std::string& result, std::string base = std::string(""));
456 pframes_t get_block_size() const { return current_block_size; }
457 framecnt_t worst_output_latency () const { return _worst_output_latency; }
458 framecnt_t worst_input_latency () const { return _worst_input_latency; }
459 framecnt_t worst_track_latency () const { return _worst_track_latency; }
460 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
463 std::string new_parent_folder; /* parent folder where new session folder will be created */
464 std::string new_name; /* name of newly saved session */
465 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
466 bool include_media; /* true if the newly saved session should contain references to media */
467 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
468 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
470 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
472 /* emitted as we make progress. 3 arguments passed to signal
475 * 1: percentage complete measured as a fraction (0-1.0) of
476 * total data copying done.
477 * 2: number of files copied so far
478 * 3: total number of files to copy
480 * Handler should return true for save-as to continue, or false
481 * to stop (and remove all evidence of partial save-as).
483 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
485 /* if save_as() returns non-zero, this string will indicate the reason why.
487 std::string failure_message;
490 int save_as (SaveAs&);
492 * @param snapshot_name name of the session (use an empty string for the current name)
493 * @param pending save a 'recovery', not full state (default: false)
494 * @param switch_to_snapshot switch to given snapshot after saving (default: false)
495 * @param template_only save a session template (default: false)
496 * @return zero on success
498 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
499 int restore_state (std::string snapshot_name);
500 int save_template (std::string template_name, bool replace_existing = false);
501 int save_history (std::string snapshot_name = "");
502 int restore_history (std::string snapshot_name);
503 void remove_state (std::string snapshot_name);
504 void rename_state (std::string old_name, std::string new_name);
505 void remove_pending_capture_state ();
506 int rename (const std::string&);
507 bool get_nsm_state () const { return _under_nsm_control; }
508 void set_nsm_state (bool state) { _under_nsm_control = state; }
509 bool save_default_options ();
511 PBD::Signal1<void,std::string> StateSaved;
512 PBD::Signal0<void> StateReady;
514 /* emitted when session needs to be saved due to some internal
515 * event or condition (i.e. not in response to a user request).
517 * Only one object should
518 * connect to this signal and take responsibility.
520 * Argument is the snapshot name to use when saving.
522 PBD::Signal1<void,std::string> SaveSessionRequested;
524 /* emitted during a session save to allow other entities to add state, via
525 * extra XML, to the session state
527 PBD::Signal0<void> SessionSaveUnderway;
529 std::vector<std::string> possible_states() const;
530 static std::vector<std::string> possible_states (std::string path);
532 XMLNode& get_state();
533 int set_state(const XMLNode& node, int version); // not idempotent
534 XMLNode& get_template();
536 /// The instant xml file is written to the session directory
537 void add_instant_xml (XMLNode&, bool write_to_config = true);
538 XMLNode* instant_xml (const std::string& str);
540 enum StateOfTheState {
545 InitialConnecting = 0x8,
551 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
553 class StateProtector {
555 StateProtector (Session* s) : _session (s) {
556 g_atomic_int_inc (&s->_suspend_save);
559 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
560 while (_session->_save_queued) {
561 _session->_save_queued = false;
562 _session->save_state ("");
570 void add_route_group (RouteGroup *);
571 void remove_route_group (RouteGroup&);
572 void reorder_route_groups (std::list<RouteGroup*>);
574 RouteGroup* route_group_by_name (std::string);
575 RouteGroup& all_route_group() const;
577 PBD::Signal1<void,RouteGroup*> route_group_added;
578 PBD::Signal0<void> route_group_removed;
579 PBD::Signal0<void> route_groups_reordered;
581 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
582 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
587 std::list<RouteGroup*> const & route_groups () const {
588 return _route_groups;
591 /* fundamental operations. duh. */
593 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
596 RouteGroup* route_group,
598 std::string name_template,
599 PresentationInfo::order_t order,
600 TrackMode mode = Normal
603 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
604 const ChanCount& input, const ChanCount& output,
605 boost::shared_ptr<PluginInfo> instrument,
606 Plugin::PresetRecord* pset = 0,
607 RouteGroup* route_group, uint32_t how_many, std::string name_template,
608 PresentationInfo::order_t,
609 TrackMode mode = Normal
612 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);
613 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);
615 void remove_routes (boost::shared_ptr<RouteList>);
616 void remove_route (boost::shared_ptr<Route>);
618 void resort_routes ();
619 void resort_routes_using (boost::shared_ptr<RouteList>);
621 AudioEngine & engine() { return _engine; }
622 AudioEngine const & engine () const { return _engine; }
624 static std::string default_track_name_pattern (DataType);
628 framepos_t transport_frame () const {return _transport_frame; }
629 framepos_t record_location () const {return _last_record_location; }
630 framepos_t audible_frame () const;
631 framepos_t requested_return_frame() const { return _requested_return_frame; }
632 void set_requested_return_frame(framepos_t return_to);
646 void sync_time_vars();
648 void bbt_time (framepos_t when, Timecode::BBT_Time&);
649 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
650 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
651 void timecode_time (Timecode::Time &);
652 void timecode_time (framepos_t when, Timecode::Time&);
653 void timecode_time_subframes (framepos_t when, Timecode::Time&);
655 void timecode_duration (framecnt_t, Timecode::Time&) const;
656 void timecode_duration_string (char *, size_t len, framecnt_t) const;
658 framecnt_t convert_to_frames (AnyTime const & position);
659 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
661 static PBD::Signal1<void, framepos_t> StartTimeChanged;
662 static PBD::Signal1<void, framepos_t> EndTimeChanged;
664 void request_sync_source (Slave*);
665 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
666 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
667 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
669 double transport_speed() const { return _transport_speed; }
670 bool transport_stopped() const { return _transport_speed == 0.0f; }
671 bool transport_rolling() const { return _transport_speed != 0.0f; }
673 bool silent () { return _silent; }
675 TempoMap& tempo_map() { return *_tempo_map; }
676 const TempoMap& tempo_map() const { return *_tempo_map; }
678 unsigned int get_xrun_count () const {return _xrun_count; }
679 void reset_xrun_count () {_xrun_count = 0; }
683 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
685 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
686 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
687 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
689 /* source management */
691 void import_files (ImportStatus&);
692 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
693 std::string build_tmp_convert_name (std::string file);
695 boost::shared_ptr<ExportHandler> get_export_handler ();
696 boost::shared_ptr<ExportStatus> get_export_status ();
698 int start_audio_export (framepos_t position);
700 PBD::Signal1<int, framecnt_t> ProcessExport;
701 static PBD::Signal2<void,std::string, std::string> Exported;
703 void add_source (boost::shared_ptr<Source>);
704 void remove_source (boost::weak_ptr<Source>);
706 void cleanup_regions();
707 bool can_cleanup_peakfiles () const;
708 int cleanup_peakfiles ();
709 int cleanup_sources (CleanupReport&);
710 int cleanup_trash_sources (CleanupReport&);
712 int destroy_sources (std::list<boost::shared_ptr<Source> >);
714 int remove_last_capture ();
716 /** handlers should return 0 for "everything OK", and any other value for
717 * "cannot setup audioengine".
719 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
721 /** handlers should return -1 for "stop cleanup",
722 0 for "yes, delete this playlist",
723 1 for "no, don't delete this playlist".
725 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
727 /** handlers should return 0 for "ignore the rate mismatch",
728 !0 for "do not use this session"
730 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
732 /** non interactive message */
733 static PBD::Signal2<void, framecnt_t, framecnt_t> NotifyAboutSampleRateMismatch;
735 /** handlers should return !0 for use pending state, 0 for ignore it.
737 static PBD::Signal0<int> AskAboutPendingState;
739 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
740 size_t, std::string const &, uint32_t, bool destructive);
742 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
743 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
745 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
746 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
747 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
748 uint32_t count_sources_by_origin (const std::string&);
750 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
752 /* Curves and AutomationLists (TODO when they go away) */
753 void add_automation_list(AutomationList*);
757 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
758 void audition_playlist ();
759 void audition_region (boost::shared_ptr<Region>);
760 void cancel_audition ();
761 bool is_auditioning () const;
763 PBD::Signal1<void,bool> AuditionActive;
766 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
767 void unregister_lua_function (const std::string& name);
768 std::vector<std::string> registered_lua_functions ();
769 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
770 void scripts_changed (); // called from lua, updates _n_lua_scripts
772 /* flattening stuff */
774 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
775 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
776 boost::shared_ptr<Processor> endpoint,
777 bool include_endpoint, bool for_export, bool for_freeze);
778 int freeze_all (InterThreadInfo&);
780 /* session-wide solo/mute/rec-enable */
782 bool soloing() const { return _non_soloed_outs_muted; }
783 bool listening() const { return _listen_cnt > 0; }
784 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
786 static const SessionEvent::RTeventCallback rt_cleanup;
788 void clear_all_solo_state (boost::shared_ptr<RouteList>);
790 /* Control-based methods */
792 void set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition);
793 void set_control (boost::shared_ptr<AutomationControl>, double val, PBD::Controllable::GroupControlDisposition);
795 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
797 PBD::Signal1<void,bool> SoloActive;
798 PBD::Signal0<void> SoloChanged;
799 PBD::Signal0<void> IsolatedChanged;
800 PBD::Signal0<void> MonitorChanged;
802 PBD::Signal0<void> session_routes_reconnected;
804 /* monitor/master out */
806 void add_monitor_section ();
807 void reset_monitor_section ();
808 void remove_monitor_section ();
809 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
811 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
812 boost::shared_ptr<Route> master_out() const { return _master_out; }
814 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
815 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
816 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
817 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
818 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
819 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
820 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
822 static void set_disable_all_loaded_plugins (bool yn) {
823 _disable_all_loaded_plugins = yn;
825 static bool get_disable_all_loaded_plugins() {
826 return _disable_all_loaded_plugins;
828 static void set_bypass_all_loaded_plugins (bool yn) {
829 _bypass_all_loaded_plugins = yn;
831 static bool get_bypass_all_loaded_plugins() {
832 return _bypass_all_loaded_plugins;
835 uint32_t next_send_id();
836 uint32_t next_aux_send_id();
837 uint32_t next_return_id();
838 uint32_t next_insert_id();
839 void mark_send_id (uint32_t);
840 void mark_aux_send_id (uint32_t);
841 void mark_return_id (uint32_t);
842 void mark_insert_id (uint32_t);
843 void unmark_send_id (uint32_t);
844 void unmark_aux_send_id (uint32_t);
845 void unmark_return_id (uint32_t);
846 void unmark_insert_id (uint32_t);
848 /* s/w "RAID" management */
850 boost::optional<framecnt_t> available_capture_duration();
854 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
855 void remove_bundle (boost::shared_ptr<Bundle>);
856 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
858 PBD::Signal0<void> BundleAddedOrRemoved;
862 /* History (for editors, mixers, UIs etc.) */
864 /** Undo some transactions.
865 * @param n Number of transactions to undo.
867 void undo (uint32_t n) {
871 void redo (uint32_t n) {
875 UndoHistory& history() { return _history; }
877 uint32_t undo_depth() const { return _history.undo_depth(); }
878 uint32_t redo_depth() const { return _history.redo_depth(); }
879 std::string next_undo() const { return _history.next_undo(); }
880 std::string next_redo() const { return _history.next_redo(); }
882 /** begin collecting undo information
884 * This call must always be followed by either
885 * begin_reversible_command() or commit_reversible_command()
887 * @param cmd_name human readable name for the undo operation
889 void begin_reversible_command (const std::string& cmd_name);
890 void begin_reversible_command (GQuark);
891 /** abort an open undo command
892 * This must only be called after begin_reversible_command ()
894 void abort_reversible_command ();
895 /** finalize an undo command and commit pending transactions
897 * This must only be called after begin_reversible_command ()
898 * @param cmd (additional) command to add
900 void commit_reversible_command (Command* cmd = 0);
902 void add_command (Command *const cmd);
904 /** create an StatefulDiffCommand from the given object and add it to the stack.
906 * This function must only be called after begin_reversible_command.
907 * Failing to do so may lead to a crash.
909 * @param sfd the object to diff
910 * @returns the allocated StatefulDiffCommand (already added via add_command)
912 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
914 /** @return The list of operations that are currently in progress */
915 std::list<GQuark> const & current_operations () {
916 return _current_trans_quarks;
919 bool operation_in_progress (GQuark) const;
921 void add_commands (std::vector<Command*> const & cmds);
923 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
925 // these commands are implemented in libs/ardour/session_command.cc
926 Command* memento_command_factory(XMLNode* n);
927 Command* stateful_diff_command_factory (XMLNode *);
928 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
932 boost::shared_ptr<IO> click_io() { return _click_io; }
933 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
935 /* disk, buffer loads */
937 uint32_t playback_load ();
938 uint32_t capture_load ();
942 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
943 void request_cancel_play_range ();
944 bool get_play_range () const { return _play_range; }
946 void maybe_update_session_range (framepos_t, framepos_t);
948 /* temporary hacks to allow selection to be pushed from GUI into backend.
949 Whenever we move the selection object into libardour, these will go away.
951 void set_range_selection (framepos_t start, framepos_t end);
952 void set_object_selection (framepos_t start, framepos_t end);
953 void clear_range_selection ();
954 void clear_object_selection ();
956 /* buffers for gain and pan */
958 gain_t* gain_automation_buffer () const;
959 gain_t* trim_automation_buffer () const;
960 gain_t* send_gain_automation_buffer () const;
961 pan_t** pan_automation_buffer () const;
963 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
967 static int vst_current_loading_id;
968 static const char* vst_can_do_strings[];
969 static const int vst_can_do_string_count;
971 static intptr_t vst_callback (
980 static PBD::Signal0<void> SendFeedback;
984 boost::shared_ptr<Speakers> get_speakers ();
988 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
990 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
991 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
993 void add_controllable (boost::shared_ptr<PBD::Controllable>);
994 void remove_controllable (PBD::Controllable*);
996 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
998 SessionConfiguration config;
1000 bool exporting () const {
1004 bool bounce_processing() const {
1005 return _bounce_processing_active;
1008 /* this is a private enum, but setup_enum_writer() needs it,
1009 and i can't find a way to give that function
1010 friend access. sigh.
1013 enum PostTransportWork {
1014 PostTransportStop = 0x1,
1015 PostTransportDuration = 0x2,
1016 PostTransportLocate = 0x4,
1017 PostTransportRoll = 0x8,
1018 PostTransportAbort = 0x10,
1019 PostTransportOverWrite = 0x20,
1020 PostTransportSpeed = 0x40,
1021 PostTransportAudition = 0x80,
1022 PostTransportReverse = 0x100,
1023 PostTransportInputChange = 0x200,
1024 PostTransportCurveRealloc = 0x400,
1025 PostTransportClearSubstate = 0x800,
1026 PostTransportAdjustPlaybackBuffering = 0x1000,
1027 PostTransportAdjustCaptureBuffering = 0x2000
1036 SlaveState slave_state() const { return _slave_state; }
1037 Slave* slave() const { return _slave; }
1039 boost::shared_ptr<SessionPlaylists> playlists;
1041 void send_mmc_locate (framepos_t);
1042 void queue_full_time_code () { _send_timecode_update = true; }
1043 void queue_song_position_pointer () { /* currently does nothing */ }
1045 bool step_editing() const { return (_step_editors > 0); }
1047 void request_suspend_timecode_transmission ();
1048 void request_resume_timecode_transmission ();
1049 bool timecode_transmission_suspended () const;
1051 std::vector<std::string> source_search_path(DataType) const;
1052 void ensure_search_path_includes (const std::string& path, DataType type);
1053 void remove_dir_from_search_path (const std::string& path, DataType type);
1055 std::list<std::string> unknown_processors () const;
1057 /** Emitted when a feedback cycle has been detected within Ardour's signal
1058 processing path. Until it is fixed (by the user) some (unspecified)
1059 routes will not be run.
1061 static PBD::Signal0<void> FeedbackDetected;
1063 /** Emitted when a graph sort has successfully completed, which means
1064 that it has no feedback cycles.
1066 static PBD::Signal0<void> SuccessfulGraphSort;
1068 /* handlers can return an integer value:
1069 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1070 to modify the search path and we should try to find it again.
1071 1: quit entire session load
1072 2: as 0, but don't ask about other missing files
1073 3: don't ask about other missing files, and just mark this one missing
1074 -1: just mark this one missing
1075 any other value: as -1
1077 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1079 /** Emitted when the session wants Ardour to quit */
1080 static PBD::Signal0<void> Quit;
1082 /** Emitted when Ardour is asked to load a session in an older session
1083 * format, and makes a backup copy.
1085 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1087 SceneChanger* scene_changer() const { return _scene_changer; }
1089 /* asynchronous MIDI control ports */
1091 boost::shared_ptr<Port> midi_input_port () const;
1092 boost::shared_ptr<Port> midi_output_port () const;
1093 boost::shared_ptr<Port> mmc_output_port () const;
1094 boost::shared_ptr<Port> mmc_input_port () const;
1095 boost::shared_ptr<Port> scene_input_port () const;
1096 boost::shared_ptr<Port> scene_output_port () const;
1098 /* synchronous MIDI ports used for synchronization */
1100 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1101 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1102 boost::shared_ptr<MidiPort> mtc_output_port () const;
1103 boost::shared_ptr<MidiPort> mtc_input_port () const;
1104 boost::shared_ptr<Port> ltc_input_port() const;
1105 boost::shared_ptr<Port> ltc_output_port() const;
1107 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1108 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1110 MIDI::MachineControl& mmc() { return *_mmc; }
1112 void reconnect_midi_scene_ports (bool);
1113 void reconnect_mtc_ports ();
1114 void reconnect_mmc_ports (bool);
1116 void reconnect_ltc_input ();
1117 void reconnect_ltc_output ();
1119 VCAManager& vca_manager() { return *_vca_manager; }
1122 friend class AudioEngine;
1123 void set_block_size (pframes_t nframes);
1124 void set_frame_rate (framecnt_t nframes);
1125 #ifdef USE_TRACKS_CODE_FEATURES
1126 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1131 void schedule_curve_reallocation ();
1132 void update_latency_compensation (bool force = false);
1135 int create (const std::string& mix_template, BusProfile*);
1138 static guint _name_id_counter;
1139 static void init_name_id_counter (guint n);
1140 static unsigned int name_id_counter ();
1143 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
1144 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
1145 StopPendingCapture = 0x4,
1146 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
1147 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
1148 PendingLocate = 0x20,
1151 /* stuff used in process() should be close together to
1155 typedef void (Session::*process_function_type)(pframes_t);
1157 AudioEngine& _engine;
1158 mutable gint processing_prohibited;
1159 process_function_type process_function;
1160 process_function_type last_process_function;
1161 bool _bounce_processing_active;
1162 bool waiting_for_sync_offset;
1163 framecnt_t _base_frame_rate; // sample-rate of the session at creation time, "native" SR
1164 framecnt_t _nominal_frame_rate; // overridden by audioengine setting
1165 framecnt_t _current_frame_rate; // this includes video pullup offset
1166 int transport_sub_state;
1167 mutable gint _record_status;
1168 framepos_t _transport_frame;
1169 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1173 // varispeed playback
1174 double _transport_speed;
1175 double _default_transport_speed;
1176 double _last_transport_speed;
1177 double _signalled_varispeed;
1178 double _target_transport_speed;
1179 CubicInterpolation interpolation;
1181 bool auto_play_legal;
1182 framepos_t _last_slave_transport_frame;
1183 framecnt_t maximum_output_latency;
1184 framepos_t _requested_return_frame;
1185 pframes_t current_block_size;
1186 framecnt_t _worst_output_latency;
1187 framecnt_t _worst_input_latency;
1188 framecnt_t _worst_track_latency;
1189 bool _have_captured;
1190 bool _non_soloed_outs_muted;
1192 uint32_t _listen_cnt;
1193 uint32_t _solo_isolated_cnt;
1196 bool _under_nsm_control;
1197 unsigned int _xrun_count;
1199 void mtc_status_changed (bool);
1200 PBD::ScopedConnection mtc_status_connection;
1201 void ltc_status_changed (bool);
1202 PBD::ScopedConnection ltc_status_connection;
1204 void initialize_latencies ();
1205 void set_worst_io_latencies ();
1206 void set_worst_playback_latency ();
1207 void set_worst_capture_latency ();
1208 void set_worst_io_latencies_x (IOChange, void *) {
1209 set_worst_io_latencies ();
1211 void post_capture_latency ();
1212 void post_playback_latency ();
1214 void update_latency_compensation_proxy (void* ignored);
1216 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1218 void process_scrub (pframes_t);
1219 void process_without_events (pframes_t);
1220 void process_with_events (pframes_t);
1221 void process_audition (pframes_t);
1222 int process_export (pframes_t);
1223 int process_export_fw (pframes_t);
1225 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1226 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1227 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1229 static const framecnt_t bounce_chunk_size;
1231 /* slave tracking */
1233 static const int delta_accumulator_size = 25;
1234 int delta_accumulator_cnt;
1235 int32_t delta_accumulator[delta_accumulator_size];
1236 int32_t average_slave_delta;
1238 bool have_first_delta_accumulator;
1240 SlaveState _slave_state;
1243 framepos_t slave_wait_end;
1245 void reset_slave_state ();
1246 bool follow_slave (pframes_t);
1247 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1248 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1249 void follow_slave_silently (pframes_t nframes, float slave_speed);
1251 void switch_to_sync_source (SyncSource); /* !RT context */
1252 void drop_sync_source (); /* !RT context */
1253 void use_sync_source (Slave*); /* RT context */
1255 bool post_export_sync;
1256 framepos_t post_export_position;
1259 bool _export_rolling;
1260 framepos_t _export_preroll;
1262 boost::shared_ptr<ExportHandler> export_handler;
1263 boost::shared_ptr<ExportStatus> export_status;
1266 int stop_audio_export ();
1267 void finalize_audio_export ();
1268 void finalize_export_internal (bool stop_freewheel);
1269 bool _pre_export_mmc_enabled;
1271 PBD::ScopedConnection export_freewheel_connection;
1273 void get_track_statistics ();
1274 int process_routes (pframes_t, bool& need_butler);
1275 int silent_process_routes (pframes_t, bool& need_butler);
1277 /** @return 1 if there is a pending declick fade-in,
1278 -1 if there is a pending declick fade-out,
1279 0 if there is no pending declick.
1281 int get_transport_declick_required () {
1282 if (transport_sub_state & PendingDeclickIn) {
1283 transport_sub_state &= ~PendingDeclickIn;
1285 } else if (transport_sub_state & PendingDeclickOut) {
1286 /* XXX: not entirely sure why we don't clear this */
1288 } else if (transport_sub_state & PendingLoopDeclickOut) {
1289 /* Return the declick out first ... */
1290 transport_sub_state &= ~PendingLoopDeclickOut;
1292 } else if (transport_sub_state & PendingLoopDeclickIn) {
1293 /* ... then the declick in on the next call */
1294 transport_sub_state &= ~PendingLoopDeclickIn;
1301 bool maybe_stop (framepos_t limit);
1302 bool maybe_sync_start (pframes_t &);
1304 void check_declick_out ();
1310 /** Number of process frames since the last MTC output (when sending MTC); used to
1311 * know when to send full MTC messages every so often.
1313 pframes_t _pframes_since_last_mtc;
1314 bool session_midi_feedback;
1317 framepos_t last_loopend;
1319 boost::scoped_ptr<SessionDirectory> _session_dir;
1322 void graph_reordered ();
1324 /** current snapshot name, without the .ardour suffix */
1325 void set_snapshot_name (const std::string &);
1326 void save_snapshot_name (const std::string &);
1327 std::string _current_snapshot_name;
1329 XMLTree* state_tree;
1330 bool state_was_pending;
1331 StateOfTheState _state_of_the_state;
1333 friend class StateProtector;
1334 gint _suspend_save; /* atomic */
1335 volatile bool _save_queued;
1336 Glib::Threads::Mutex save_state_lock;
1337 Glib::Threads::Mutex peak_cleanup_lock;
1339 int load_options (const XMLNode&);
1340 int load_state (std::string snapshot_name);
1342 framepos_t _last_roll_location;
1343 /** the session frame time at which we last rolled, located, or changed transport direction */
1344 framepos_t _last_roll_or_reversal_location;
1345 framepos_t _last_record_location;
1347 bool pending_locate_roll;
1348 framepos_t pending_locate_frame;
1349 bool pending_locate_flush;
1351 bool pending_auto_loop;
1353 PBD::ReallocPool _mempool;
1355 Glib::Threads::Mutex lua_lock;
1356 luabridge::LuaRef * _lua_run;
1357 luabridge::LuaRef * _lua_add;
1358 luabridge::LuaRef * _lua_del;
1359 luabridge::LuaRef * _lua_list;
1360 luabridge::LuaRef * _lua_load;
1361 luabridge::LuaRef * _lua_save;
1362 luabridge::LuaRef * _lua_cleanup;
1363 uint32_t _n_lua_scripts;
1366 void try_run_lua (pframes_t);
1370 static const PostTransportWork ProcessCannotProceedMask =
1372 PostTransportInputChange|
1374 PostTransportReverse|
1375 PostTransportCurveRealloc|
1376 PostTransportAudition|
1377 PostTransportLocate|
1379 PostTransportClearSubstate);
1381 gint _post_transport_work; /* accessed only atomic ops */
1382 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1383 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1384 void add_post_transport_work (PostTransportWork ptw);
1386 void schedule_playback_buffering_adjustment ();
1387 void schedule_capture_buffering_adjustment ();
1389 uint32_t cumulative_rf_motion;
1392 void set_rf_speed (float speed);
1393 void reset_rf_scale (framecnt_t frames_moved);
1395 Locations* _locations;
1396 void location_added (Location*);
1397 void location_removed (Location*);
1398 void locations_changed ();
1399 void _locations_changed (const Locations::LocationList&);
1401 void update_skips (Location*, bool consolidate);
1402 void update_marks (Location* loc);
1403 void consolidate_skips (Location*);
1404 void sync_locations_to_skips ();
1405 void _sync_locations_to_skips ();
1407 PBD::ScopedConnectionList skip_update_connections;
1408 bool _ignore_skips_updates;
1410 PBD::ScopedConnectionList punch_connections;
1411 void auto_punch_start_changed (Location *);
1412 void auto_punch_end_changed (Location *);
1413 void auto_punch_changed (Location *);
1415 PBD::ScopedConnectionList loop_connections;
1416 void auto_loop_changed (Location *);
1417 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1419 int ensure_engine (uint32_t desired_sample_rate, bool);
1420 void pre_engine_init (std::string path);
1421 int post_engine_init ();
1422 int immediately_post_engine ();
1423 void remove_empty_sounds ();
1425 void session_loaded ();
1427 void setup_midi_control ();
1428 int midi_read (MIDI::Port *);
1430 void enable_record ();
1432 void increment_transport_position (framecnt_t val) {
1433 if (max_framepos - val < _transport_frame) {
1434 _transport_frame = max_framepos;
1436 _transport_frame += val;
1440 void decrement_transport_position (framecnt_t val) {
1441 if (val < _transport_frame) {
1442 _transport_frame -= val;
1444 _transport_frame = 0;
1448 void post_transport_motion ();
1449 static void *session_loader_thread (void *arg);
1453 /* Signal Forwarding */
1454 void emit_route_signals ();
1455 void emit_thread_run ();
1456 static void *emit_thread (void *);
1457 void emit_thread_start ();
1458 void emit_thread_terminate ();
1460 pthread_t _rt_emit_thread;
1461 bool _rt_thread_active;
1463 pthread_mutex_t _rt_emit_mutex;
1464 pthread_cond_t _rt_emit_cond;
1465 bool _rt_emit_pending;
1467 /* Auto Connect Thread */
1468 static void *auto_connect_thread (void *);
1469 void auto_connect_thread_run ();
1470 void auto_connect_thread_start ();
1471 void auto_connect_thread_terminate ();
1473 pthread_t _auto_connect_thread;
1474 bool _ac_thread_active;
1475 pthread_mutex_t _auto_connect_mutex;
1476 pthread_cond_t _auto_connect_cond;
1478 struct AutoConnectRequest {
1480 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1481 const ChanCount& is,
1482 const ChanCount& os,
1483 const ChanCount& io,
1484 const ChanCount& oo)
1485 : route (boost::weak_ptr<Route> (r))
1486 , connect_inputs (ci)
1490 , output_offset (oo)
1493 boost::weak_ptr <Route> route;
1494 bool connect_inputs;
1495 ChanCount input_start;
1496 ChanCount output_start;
1497 ChanCount input_offset;
1498 ChanCount output_offset;
1501 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1502 Glib::Threads::Mutex _auto_connect_queue_lock;
1503 AutoConnectQueue _auto_connect_queue;
1505 void auto_connect (const AutoConnectRequest&);
1507 /* SessionEventManager interface */
1509 void process_event (SessionEvent*);
1510 void set_next_event ();
1511 void cleanup_event (SessionEvent*,int);
1513 /* MIDI Machine Control */
1516 void spp_continue ();
1519 void mmc_deferred_play (MIDI::MachineControl &);
1520 void mmc_stop (MIDI::MachineControl &);
1521 void mmc_step (MIDI::MachineControl &, int);
1522 void mmc_pause (MIDI::MachineControl &);
1523 void mmc_record_pause (MIDI::MachineControl &);
1524 void mmc_record_strobe (MIDI::MachineControl &);
1525 void mmc_record_exit (MIDI::MachineControl &);
1526 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1527 void mmc_fast_forward (MIDI::MachineControl &);
1528 void mmc_rewind (MIDI::MachineControl &);
1529 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1530 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1531 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1533 struct timeval last_mmc_step;
1536 typedef boost::function<bool()> MidiTimeoutCallback;
1537 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1539 MidiTimeoutList midi_timeouts;
1540 bool mmc_step_timeout ();
1541 void send_immediate_mmc (MIDI::MachineControlCommand);
1543 MIDI::byte mtc_msg[16];
1544 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1545 MIDI::byte midi_msg[16];
1546 double outbound_mtc_timecode_frame;
1547 Timecode::Time transmitting_timecode_time;
1548 int next_quarter_frame_to_send;
1550 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1551 framecnt_t _frames_per_hour;
1552 framecnt_t _timecode_frames_per_hour;
1554 /* cache the most-recently requested time conversions. This helps when we
1555 * have multiple clocks showing the same time (e.g. the transport frame) */
1556 bool last_timecode_valid;
1557 framepos_t last_timecode_when;
1558 Timecode::Time last_timecode;
1560 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1562 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1564 LTCEncoder* ltc_encoder;
1565 ltcsnd_sample_t* ltc_enc_buf;
1567 Timecode::TimecodeFormat ltc_enc_tcformat;
1568 int32_t ltc_buf_off;
1569 int32_t ltc_buf_len;
1572 int32_t ltc_enc_byte;
1573 framepos_t ltc_enc_pos;
1575 framepos_t ltc_enc_off;
1577 framepos_t ltc_prev_cycle;
1579 framepos_t ltc_timecode_offset;
1580 bool ltc_timecode_negative_offset;
1582 LatencyRange ltc_out_latency;
1584 void ltc_tx_initialize();
1585 void ltc_tx_cleanup();
1586 void ltc_tx_reset();
1587 void ltc_tx_resync_latency();
1588 void ltc_tx_recalculate_position();
1589 void ltc_tx_parse_offset();
1590 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1592 void reset_record_status ();
1594 int no_roll (pframes_t nframes);
1595 int fail_roll (pframes_t nframes);
1597 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1598 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1600 MidiControlUI* midi_control_ui;
1602 int start_midi_thread ();
1604 void set_play_loop (bool yn, double speed);
1605 void unset_play_loop ();
1606 void overwrite_some_buffers (Track *);
1607 void flush_all_inserts ();
1608 int micro_locate (framecnt_t distance);
1609 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1610 void start_locate (framepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1611 void force_locate (framepos_t frame, bool with_roll = false);
1612 void set_track_speed (Track *, double speed);
1613 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1614 void stop_transport (bool abort = false, bool clear_state = false);
1615 void start_transport ();
1616 void realtime_stop (bool abort, bool clear_state);
1617 void realtime_locate ();
1618 void non_realtime_start_scrub ();
1619 void non_realtime_set_speed ();
1620 void non_realtime_locate ();
1621 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1622 void non_realtime_overwrite (int entry_request_count, bool& finished);
1623 void post_transport ();
1624 void engine_halted ();
1625 void xrun_recovery ();
1626 void set_track_loop (bool);
1627 bool select_playhead_priority_target (framepos_t&);
1628 void follow_playhead_priority ();
1630 /* These are synchronous and so can only be called from within the process
1634 int send_full_time_code (framepos_t, pframes_t nframes);
1635 void send_song_position_pointer (framepos_t);
1637 TempoMap *_tempo_map;
1638 void tempo_map_changed (const PBD::PropertyChange&);
1639 void gui_tempo_map_changed ();
1641 /* edit/mix groups */
1643 int load_route_groups (const XMLNode&, int);
1645 std::list<RouteGroup *> _route_groups;
1646 RouteGroup* _all_route_group;
1650 boost::shared_ptr<Graph> _process_graph;
1652 SerializedRCUManager<RouteList> routes;
1654 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save, PresentationInfo::order_t);
1655 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect, PresentationInfo::order_t);
1656 bool _adding_routes_in_progress;
1657 bool _reconnecting_routes_in_progress;
1658 bool _route_deletion_in_progress;
1660 uint32_t destructive_index;
1662 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1663 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1665 void route_processors_changed (RouteProcessorChange);
1667 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1668 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1669 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1670 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1672 /* track numbering */
1674 void reassign_track_numbers ();
1675 uint32_t _track_number_decimals;
1677 /* solo/mute/notifications */
1679 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1680 void route_mute_changed ();
1681 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1682 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1684 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1686 void listen_position_changed ();
1687 void solo_control_mode_changed ();
1689 /* REGION MANAGEMENT */
1691 mutable Glib::Threads::Mutex region_lock;
1693 int load_regions (const XMLNode& node);
1694 int load_compounds (const XMLNode& node);
1696 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1697 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1698 void route_group_property_changed (RouteGroup *);
1702 mutable Glib::Threads::Mutex source_lock;
1705 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1708 void reset_write_sources (bool mark_write_complete, bool force = false);
1713 int load_sources (const XMLNode& node);
1714 XMLNode& get_sources_as_xml ();
1716 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1720 void remove_playlist (boost::weak_ptr<Playlist>);
1721 void track_playlist_changed (boost::weak_ptr<Track>);
1722 void playlist_region_added (boost::weak_ptr<Region>);
1723 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1724 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1726 /* CURVES and AUTOMATION LISTS */
1727 std::map<PBD::ID, AutomationList*> automation_lists;
1729 /* DEFAULT FADE CURVES */
1731 float default_fade_steepness;
1732 float default_fade_msecs;
1736 boost::shared_ptr<Auditioner> auditioner;
1737 void set_audition (boost::shared_ptr<Region>);
1738 void non_realtime_set_audition ();
1739 boost::shared_ptr<Region> pending_audition_region;
1745 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1747 /* INSERT AND SEND MANAGEMENT */
1749 boost::dynamic_bitset<uint32_t> send_bitset;
1750 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1751 boost::dynamic_bitset<uint32_t> return_bitset;
1752 boost::dynamic_bitset<uint32_t> insert_bitset;
1756 struct space_and_path {
1757 uint32_t blocks; ///< 4kB blocks
1758 bool blocks_unknown; ///< true if blocks is unknown
1763 , blocks_unknown (true)
1767 struct space_and_path_ascending_cmp {
1768 bool operator() (space_and_path a, space_and_path b) {
1769 if (a.blocks_unknown != b.blocks_unknown) {
1770 return !a.blocks_unknown;
1772 return a.blocks > b.blocks;
1776 void setup_raid_path (std::string path);
1778 std::vector<space_and_path> session_dirs;
1779 std::vector<space_and_path>::iterator last_rr_session_dir;
1780 uint32_t _total_free_4k_blocks;
1781 /** If this is true, _total_free_4k_blocks is not definite,
1782 as one or more of the session directories' filesystems
1783 could not report free space.
1785 bool _total_free_4k_blocks_uncertain;
1786 Glib::Threads::Mutex space_lock;
1788 bool no_questions_about_missing_files;
1790 std::string get_best_session_directory_for_new_audio ();
1792 mutable gint _playback_load;
1793 mutable gint _capture_load;
1797 SerializedRCUManager<BundleList> _bundles;
1798 XMLNode* _bundle_xml_node;
1799 int load_bundles (XMLNode const &);
1801 UndoHistory _history;
1802 /** current undo transaction, or 0 */
1803 UndoTransaction* _current_trans;
1804 /** GQuarks to describe the reversible commands that are currently in progress.
1805 * These may be nested, in which case more recently-started commands are toward
1806 * the front of the list.
1808 std::list<GQuark> _current_trans_quarks;
1810 int backend_sync_callback (TransportState, framepos_t);
1812 void process_rtop (SessionEvent*);
1814 void update_latency (bool playback);
1816 XMLNode& state(bool);
1819 typedef std::list<Click*> Clicks;
1822 boost::shared_ptr<IO> _click_io;
1823 boost::shared_ptr<Amp> _click_gain;
1825 Sample* click_emphasis_data;
1826 framecnt_t click_length;
1827 framecnt_t click_emphasis_length;
1828 mutable Glib::Threads::RWLock click_lock;
1830 static const Sample default_click[];
1831 static const framecnt_t default_click_length;
1832 static const Sample default_click_emphasis[];
1833 static const framecnt_t default_click_emphasis_length;
1836 framepos_t _clicks_cleared;
1837 void setup_click_sounds (int which);
1838 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1839 void clear_clicks ();
1840 void click (framepos_t start, framecnt_t nframes);
1842 std::vector<Route*> master_outs;
1844 /* range playback */
1846 std::list<AudioRange> current_audio_range;
1848 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1849 void unset_play_range ();
1851 /* temporary hacks to allow selection to be pushed from GUI into backend
1852 Whenever we move the selection object into libardour, these will go away.
1854 Evoral::Range<framepos_t> _range_selection;
1855 Evoral::Range<framepos_t> _object_selection;
1860 boost::shared_ptr<Route> _master_out;
1861 boost::shared_ptr<Route> _monitor_out;
1863 void auto_connect_master_bus ();
1865 /* Windows VST support */
1867 long _windows_vst_callback (
1876 int find_all_sources (std::string path, std::set<std::string>& result);
1877 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1879 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1880 Glib::Threads::Mutex controllables_lock;
1881 Controllables controllables;
1883 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1885 void reset_native_file_format();
1886 bool first_file_data_format_reset;
1887 bool first_file_header_format_reset;
1889 void config_changed (std::string, bool);
1891 XMLNode& get_control_protocol_state ();
1893 void set_history_depth (uint32_t depth);
1895 static bool _disable_all_loaded_plugins;
1896 static bool _bypass_all_loaded_plugins;
1898 mutable bool have_looped; ///< Used in ::audible_frame(*)
1900 void update_route_record_state ();
1901 gint _have_rec_enabled_track;
1902 gint _have_rec_disabled_track;
1904 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1906 /* realtime "apply to set of routes" operations */
1907 template<typename T> SessionEvent*
1908 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1909 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1910 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1911 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1912 ev->rt_return = after;
1913 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1918 /* specialized version realtime "apply to set of routes" operations */
1919 template<typename T1, typename T2> SessionEvent*
1920 get_rt_event (boost::shared_ptr<RouteList> rl, T1 t1arg, T2 t2arg, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1921 void (Session::*method) (boost::shared_ptr<RouteList>, T1, T2, PBD::Controllable::GroupControlDisposition)) {
1922 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1923 ev->rt_slot = boost::bind (method, this, rl, t1arg, t2arg, group_override);
1924 ev->rt_return = after;
1925 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1930 /* specialized version realtime "apply to set of controls" operations */
1931 SessionEvent* get_rt_event (boost::shared_ptr<ControlList> cl, double arg, PBD::Controllable::GroupControlDisposition group_override) {
1932 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1933 ev->rt_slot = boost::bind (&Session::rt_set_controls, this, cl, arg, group_override);
1934 ev->rt_return = Session::rt_cleanup;
1935 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1940 void rt_set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition group_override);
1941 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1943 /** temporary list of Diskstreams used only during load of 2.X sessions */
1944 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1946 void set_session_range_location (framepos_t, framepos_t);
1948 void setup_midi_machine_control ();
1950 void step_edit_status_change (bool);
1951 uint32_t _step_editors;
1953 /** true if timecode transmission by the transport is suspended, otherwise false */
1954 mutable gint _suspend_timecode_transmission;
1956 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1958 void start_time_changed (framepos_t);
1959 void end_time_changed (framepos_t);
1961 void set_track_monitor_input_status (bool);
1962 framepos_t compute_stop_limit () const;
1964 boost::shared_ptr<Speakers> _speakers;
1965 void load_nested_sources (const XMLNode& node);
1967 /** The directed graph of routes that is currently being used for audio processing
1968 and solo/mute computations.
1970 GraphEdges _current_route_graph;
1972 void ensure_presentation_info_gap (PresentationInfo::order_t, uint32_t gap_size);
1973 bool ignore_route_processor_changes;
1975 MidiClockTicker* midi_clock;
1977 boost::shared_ptr<IO> _ltc_input;
1978 boost::shared_ptr<IO> _ltc_output;
1980 /* Scene Changing */
1981 SceneChanger* _scene_changer;
1983 /* persistent, non-track related MIDI ports */
1984 MidiPortManager* _midi_ports;
1985 MIDI::MachineControl* _mmc;
1988 void setup_click ();
1989 void setup_click_state (const XMLNode*);
1990 void setup_bundles ();
1992 void save_as_bring_callback (uint32_t, uint32_t, std::string);
1994 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
1995 static const uint32_t session_end_shift;
1997 std::string _template_state_dir;
1999 VCAManager* _vca_manager;
2001 boost::shared_ptr<Route> get_midi_nth_route_by_id (PresentationInfo::order_t n) const;
2005 } // namespace ARDOUR
2007 #endif /* __ardour_session_h__ */