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;
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 /* because the set of Stripables consists of objects managed
281 * independently, in multiple containers within the Session (or objects
282 * owned by the session), we fill out a list in-place rather than
283 * return a pointer to a copy of the (RCU) managed list, as happens
287 void get_stripables (StripableList&) const;
288 boost::shared_ptr<RouteList> get_tracks() const;
289 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
290 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
292 uint32_t nroutes() const { return routes.reader()->size(); }
293 uint32_t ntracks () const;
294 uint32_t nbusses () const;
296 boost::shared_ptr<BundleList> bundles () {
297 return _bundles.reader ();
300 struct LIBARDOUR_API RoutePublicOrderSorter {
301 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
304 void notify_presentation_info_change ();
306 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
307 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
308 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
310 static char session_name_is_legal (const std::string&);
311 bool io_name_is_legal (const std::string&) const;
312 boost::shared_ptr<Route> route_by_name (std::string) const;
313 boost::shared_ptr<Route> route_by_id (PBD::ID) const;
314 boost::shared_ptr<Stripable> get_remote_nth_stripable (PresentationInfo::order_t n, PresentationInfo::Flag) const;
315 boost::shared_ptr<Route> get_remote_nth_route (PresentationInfo::order_t n) const;
316 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt) const;
317 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID) const;
318 void routes_using_input_from (const std::string& str, RouteList& rl);
320 bool route_name_unique (std::string) const;
321 bool route_name_internal (std::string) const;
323 uint32_t track_number_decimals () const {
324 return _track_number_decimals;
327 bool get_record_enabled() const {
328 return (record_status () >= Enabled);
331 RecordState record_status() const {
332 return (RecordState) g_atomic_int_get (&_record_status);
335 bool actively_recording () const {
336 return record_status() == Recording;
339 bool record_enabling_legal () const;
340 void maybe_enable_record ();
341 void disable_record (bool rt_context, bool force = false);
342 void step_back_from_record ();
344 void set_all_tracks_record_enabled(bool);
346 void maybe_write_autosave ();
348 /* Emitted when all i/o connections are complete */
350 PBD::Signal0<void> IOConnectionsComplete;
352 /* Timecode status signals */
353 PBD::Signal1<void, bool> MTCSyncStateChanged;
354 PBD::Signal1<void, bool> LTCSyncStateChanged;
356 /* Record status signals */
358 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
359 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
360 from the previous signal and session state.
362 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
364 /* Emited when session is loaded */
365 PBD::Signal0<void> SessionLoaded;
367 /* Transport mechanism signals */
369 /** Emitted on the following changes in transport state:
370 * - stop (from the butler thread)
371 * - change in whether or not we are looping (from the process thread)
372 * - change in the play range (from the process thread)
373 * - start (from the process thread)
376 PBD::Signal0<void> TransportStateChange;
378 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
379 PBD::Signal1<void,framepos_t> Xrun;
380 PBD::Signal0<void> TransportLooped;
382 /** emitted when a locate has occurred */
383 PBD::Signal0<void> Located;
385 PBD::Signal1<void,RouteList&> RouteAdded;
386 /** Emitted when a property of one of our route groups changes.
387 * The parameter is the RouteGroup that has changed.
389 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
390 /** Emitted when a route is added to one of our route groups.
391 * First parameter is the RouteGroup, second is the route.
393 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
394 /** Emitted when a route is removed from one of our route groups.
395 * First parameter is the RouteGroup, second is the route.
397 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
399 /* Step Editing status changed */
400 PBD::Signal1<void,bool> StepEditStatusChange;
402 /* Timecode state signals */
403 PBD::Signal0<void> MtcOrLtcInputPortChanged;
405 void queue_event (SessionEvent*);
407 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
408 void request_bounded_roll (framepos_t start, framepos_t end);
409 void request_stop (bool abort = false, bool clear_state = false);
410 void request_locate (framepos_t frame, bool with_roll = false);
412 void request_play_loop (bool yn, bool leave_rolling = false);
413 bool get_play_loop () const { return play_loop; }
415 framepos_t last_transport_start () const { return _last_roll_location; }
418 void use_rf_shuttle_speed ();
419 void allow_auto_play (bool yn);
420 void request_transport_speed (double speed, bool as_default = true);
421 void request_transport_speed_nonzero (double, bool as_default = true);
422 void request_overwrite_buffer (Track *);
423 void adjust_playback_buffering();
424 void adjust_capture_buffering();
425 void request_track_speed (Track *, double speed);
426 void request_input_change_handling ();
428 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
429 bool transport_locked () const;
433 framepos_t current_end_frame () const;
434 framepos_t current_start_frame () const;
435 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
436 framecnt_t frame_rate () const { return _current_frame_rate; }
437 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
438 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
439 framecnt_t frames_per_hour () const { return _frames_per_hour; }
441 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
442 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
444 MIDI::byte get_mtc_timecode_bits() const {
445 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
448 double timecode_frames_per_second() const;
449 bool timecode_drop_frames() const;
453 Locations *locations() { return _locations; }
455 PBD::Signal1<void,Location*> auto_loop_location_changed;
456 PBD::Signal1<void,Location*> auto_punch_location_changed;
457 PBD::Signal0<void> locations_modified;
459 void set_auto_punch_location (Location *);
460 void set_auto_loop_location (Location *);
461 void set_session_extents (framepos_t start, framepos_t end);
462 void set_end_is_free (bool);
463 int location_name(std::string& result, std::string base = std::string(""));
465 pframes_t get_block_size() const { return current_block_size; }
466 framecnt_t worst_output_latency () const { return _worst_output_latency; }
467 framecnt_t worst_input_latency () const { return _worst_input_latency; }
468 framecnt_t worst_track_latency () const { return _worst_track_latency; }
469 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
472 std::string new_parent_folder; /* parent folder where new session folder will be created */
473 std::string new_name; /* name of newly saved session */
474 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
475 bool include_media; /* true if the newly saved session should contain references to media */
476 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
477 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
479 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
481 /* emitted as we make progress. 3 arguments passed to signal
484 * 1: percentage complete measured as a fraction (0-1.0) of
485 * total data copying done.
486 * 2: number of files copied so far
487 * 3: total number of files to copy
489 * Handler should return true for save-as to continue, or false
490 * to stop (and remove all evidence of partial save-as).
492 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
494 /* if save_as() returns non-zero, this string will indicate the reason why.
496 std::string failure_message;
499 int save_as (SaveAs&);
501 * @param snapshot_name name of the session (use an empty string for the current name)
502 * @param pending save a 'recovery', not full state (default: false)
503 * @param switch_to_snapshot switch to given snapshot after saving (default: false)
504 * @param template_only save a session template (default: false)
505 * @return zero on success
507 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
508 int restore_state (std::string snapshot_name);
509 int save_template (std::string template_name, bool replace_existing = false);
510 int save_history (std::string snapshot_name = "");
511 int restore_history (std::string snapshot_name);
512 void remove_state (std::string snapshot_name);
513 void rename_state (std::string old_name, std::string new_name);
514 void remove_pending_capture_state ();
515 int rename (const std::string&);
516 bool get_nsm_state () const { return _under_nsm_control; }
517 void set_nsm_state (bool state) { _under_nsm_control = state; }
518 bool save_default_options ();
520 PBD::Signal1<void,std::string> StateSaved;
521 PBD::Signal0<void> StateReady;
523 /* emitted when session needs to be saved due to some internal
524 * event or condition (i.e. not in response to a user request).
526 * Only one object should
527 * connect to this signal and take responsibility.
529 * Argument is the snapshot name to use when saving.
531 PBD::Signal1<void,std::string> SaveSessionRequested;
533 /* emitted during a session save to allow other entities to add state, via
534 * extra XML, to the session state
536 PBD::Signal0<void> SessionSaveUnderway;
538 std::vector<std::string> possible_states() const;
539 static std::vector<std::string> possible_states (std::string path);
541 XMLNode& get_state();
542 int set_state(const XMLNode& node, int version); // not idempotent
543 XMLNode& get_template();
545 /// The instant xml file is written to the session directory
546 void add_instant_xml (XMLNode&, bool write_to_config = true);
547 XMLNode* instant_xml (const std::string& str);
549 enum StateOfTheState {
554 InitialConnecting = 0x8,
560 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
562 class StateProtector {
564 StateProtector (Session* s) : _session (s) {
565 g_atomic_int_inc (&s->_suspend_save);
568 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
569 while (_session->_save_queued) {
570 _session->_save_queued = false;
571 _session->save_state ("");
579 void add_route_group (RouteGroup *);
580 void remove_route_group (RouteGroup&);
581 void reorder_route_groups (std::list<RouteGroup*>);
583 RouteGroup* route_group_by_name (std::string);
584 RouteGroup& all_route_group() const;
586 PBD::Signal1<void,RouteGroup*> route_group_added;
587 PBD::Signal0<void> route_group_removed;
588 PBD::Signal0<void> route_groups_reordered;
590 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
591 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
596 std::list<RouteGroup*> const & route_groups () const {
597 return _route_groups;
600 /* fundamental operations. duh. */
602 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
605 RouteGroup* route_group,
607 std::string name_template,
608 PresentationInfo::order_t order,
609 TrackMode mode = Normal
612 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
613 const ChanCount& input, const ChanCount& output,
614 boost::shared_ptr<PluginInfo> instrument,
615 Plugin::PresetRecord* pset,
616 RouteGroup* route_group, uint32_t how_many, std::string name_template,
617 PresentationInfo::order_t,
618 TrackMode mode = Normal
621 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);
622 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);
624 void remove_routes (boost::shared_ptr<RouteList>);
625 void remove_route (boost::shared_ptr<Route>);
627 void resort_routes ();
628 void resort_routes_using (boost::shared_ptr<RouteList>);
630 AudioEngine & engine() { return _engine; }
631 AudioEngine const & engine () const { return _engine; }
633 static std::string default_track_name_pattern (DataType);
637 framepos_t transport_frame () const {return _transport_frame; }
638 framepos_t record_location () const {return _last_record_location; }
639 framepos_t audible_frame () const;
640 framepos_t requested_return_frame() const { return _requested_return_frame; }
641 void set_requested_return_frame(framepos_t return_to);
655 void sync_time_vars();
657 void bbt_time (framepos_t when, Timecode::BBT_Time&);
658 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
659 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
660 void timecode_time (Timecode::Time &);
661 void timecode_time (framepos_t when, Timecode::Time&);
662 void timecode_time_subframes (framepos_t when, Timecode::Time&);
664 void timecode_duration (framecnt_t, Timecode::Time&) const;
665 void timecode_duration_string (char *, size_t len, framecnt_t) const;
667 framecnt_t convert_to_frames (AnyTime const & position);
668 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
670 static PBD::Signal1<void, framepos_t> StartTimeChanged;
671 static PBD::Signal1<void, framepos_t> EndTimeChanged;
673 void request_sync_source (Slave*);
674 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
675 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
676 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
678 double transport_speed() const { return _transport_speed; }
679 bool transport_stopped() const { return _transport_speed == 0.0; }
680 bool transport_rolling() const { return _transport_speed != 0.0; }
682 bool silent () { return _silent; }
684 TempoMap& tempo_map() { return *_tempo_map; }
685 const TempoMap& tempo_map() const { return *_tempo_map; }
687 unsigned int get_xrun_count () const {return _xrun_count; }
688 void reset_xrun_count () {_xrun_count = 0; }
692 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
694 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
695 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
696 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
698 /* source management */
700 void import_files (ImportStatus&);
701 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
702 std::string build_tmp_convert_name (std::string file);
704 boost::shared_ptr<ExportHandler> get_export_handler ();
705 boost::shared_ptr<ExportStatus> get_export_status ();
707 int start_audio_export (framepos_t position, bool realtime = false);
709 PBD::Signal1<int, framecnt_t> ProcessExport;
710 static PBD::Signal2<void,std::string, std::string> Exported;
712 void add_source (boost::shared_ptr<Source>);
713 void remove_source (boost::weak_ptr<Source>);
715 void cleanup_regions();
716 bool can_cleanup_peakfiles () const;
717 int cleanup_peakfiles ();
718 int cleanup_sources (CleanupReport&);
719 int cleanup_trash_sources (CleanupReport&);
721 int destroy_sources (std::list<boost::shared_ptr<Source> >);
723 int remove_last_capture ();
725 /** handlers should return 0 for "everything OK", and any other value for
726 * "cannot setup audioengine".
728 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
730 /** handlers should return -1 for "stop cleanup",
731 0 for "yes, delete this playlist",
732 1 for "no, don't delete this playlist".
734 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
736 /** handlers should return 0 for "ignore the rate mismatch",
737 !0 for "do not use this session"
739 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
741 /** non interactive message */
742 static PBD::Signal2<void, framecnt_t, framecnt_t> NotifyAboutSampleRateMismatch;
744 /** handlers should return !0 for use pending state, 0 for ignore it.
746 static PBD::Signal0<int> AskAboutPendingState;
748 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
749 size_t, std::string const &, uint32_t, bool destructive);
751 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
752 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
754 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
755 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
756 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
757 uint32_t count_sources_by_origin (const std::string&);
759 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
761 /* Curves and AutomationLists (TODO when they go away) */
762 void add_automation_list(AutomationList*);
766 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
767 void audition_playlist ();
768 void audition_region (boost::shared_ptr<Region>);
769 void cancel_audition ();
770 bool is_auditioning () const;
772 PBD::Signal1<void,bool> AuditionActive;
775 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
776 void unregister_lua_function (const std::string& name);
777 std::vector<std::string> registered_lua_functions ();
778 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
779 void scripts_changed (); // called from lua, updates _n_lua_scripts
781 /* flattening stuff */
783 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
784 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
785 boost::shared_ptr<Processor> endpoint,
786 bool include_endpoint, bool for_export, bool for_freeze);
787 int freeze_all (InterThreadInfo&);
789 /* session-wide solo/mute/rec-enable */
791 bool soloing() const { return _non_soloed_outs_muted; }
792 bool listening() const { return _listen_cnt > 0; }
793 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
794 void cancel_all_solo ();
796 static const SessionEvent::RTeventCallback rt_cleanup;
798 void clear_all_solo_state (boost::shared_ptr<RouteList>);
800 /* Control-based methods */
802 void set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition);
803 void set_control (boost::shared_ptr<AutomationControl>, double val, PBD::Controllable::GroupControlDisposition);
805 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
807 PBD::Signal1<void,bool> SoloActive;
808 PBD::Signal0<void> SoloChanged;
809 PBD::Signal0<void> IsolatedChanged;
810 PBD::Signal0<void> MonitorChanged;
812 PBD::Signal0<void> session_routes_reconnected;
814 /* monitor/master out */
816 void add_monitor_section ();
817 void reset_monitor_section ();
818 void remove_monitor_section ();
819 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
821 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
822 boost::shared_ptr<Route> master_out() const { return _master_out; }
824 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
825 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
826 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
827 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
828 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
829 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
830 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
832 static void set_disable_all_loaded_plugins (bool yn) {
833 _disable_all_loaded_plugins = yn;
835 static bool get_disable_all_loaded_plugins() {
836 return _disable_all_loaded_plugins;
838 static void set_bypass_all_loaded_plugins (bool yn) {
839 _bypass_all_loaded_plugins = yn;
841 static bool get_bypass_all_loaded_plugins() {
842 return _bypass_all_loaded_plugins;
845 uint32_t next_send_id();
846 uint32_t next_aux_send_id();
847 uint32_t next_return_id();
848 uint32_t next_insert_id();
849 void mark_send_id (uint32_t);
850 void mark_aux_send_id (uint32_t);
851 void mark_return_id (uint32_t);
852 void mark_insert_id (uint32_t);
853 void unmark_send_id (uint32_t);
854 void unmark_aux_send_id (uint32_t);
855 void unmark_return_id (uint32_t);
856 void unmark_insert_id (uint32_t);
858 /* s/w "RAID" management */
860 boost::optional<framecnt_t> available_capture_duration();
864 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
865 void remove_bundle (boost::shared_ptr<Bundle>);
866 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
868 PBD::Signal0<void> BundleAddedOrRemoved;
872 /* History (for editors, mixers, UIs etc.) */
874 /** Undo some transactions.
875 * @param n Number of transactions to undo.
877 void undo (uint32_t n) {
881 void redo (uint32_t n) {
885 UndoHistory& history() { return _history; }
887 uint32_t undo_depth() const { return _history.undo_depth(); }
888 uint32_t redo_depth() const { return _history.redo_depth(); }
889 std::string next_undo() const { return _history.next_undo(); }
890 std::string next_redo() const { return _history.next_redo(); }
892 /** begin collecting undo information
894 * This call must always be followed by either
895 * begin_reversible_command() or commit_reversible_command()
897 * @param cmd_name human readable name for the undo operation
899 void begin_reversible_command (const std::string& cmd_name);
900 void begin_reversible_command (GQuark);
901 /** abort an open undo command
902 * This must only be called after begin_reversible_command ()
904 void abort_reversible_command ();
905 /** finalize an undo command and commit pending transactions
907 * This must only be called after begin_reversible_command ()
908 * @param cmd (additional) command to add
910 void commit_reversible_command (Command* cmd = 0);
912 void add_command (Command *const cmd);
914 /** create an StatefulDiffCommand from the given object and add it to the stack.
916 * This function must only be called after begin_reversible_command.
917 * Failing to do so may lead to a crash.
919 * @param sfd the object to diff
920 * @returns the allocated StatefulDiffCommand (already added via add_command)
922 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
924 /** @return The list of operations that are currently in progress */
925 std::list<GQuark> const & current_operations () {
926 return _current_trans_quarks;
929 bool operation_in_progress (GQuark) const;
931 void add_commands (std::vector<Command*> const & cmds);
933 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
935 // these commands are implemented in libs/ardour/session_command.cc
936 Command* memento_command_factory(XMLNode* n);
937 Command* stateful_diff_command_factory (XMLNode *);
938 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
942 boost::shared_ptr<IO> click_io() { return _click_io; }
943 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
945 /* disk, buffer loads */
947 uint32_t playback_load ();
948 uint32_t capture_load ();
952 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
953 void request_cancel_play_range ();
954 bool get_play_range () const { return _play_range; }
956 void maybe_update_session_range (framepos_t, framepos_t);
958 /* temporary hacks to allow selection to be pushed from GUI into backend.
959 Whenever we move the selection object into libardour, these will go away.
961 void set_range_selection (framepos_t start, framepos_t end);
962 void set_object_selection (framepos_t start, framepos_t end);
963 void clear_range_selection ();
964 void clear_object_selection ();
966 /* buffers for gain and pan */
968 gain_t* gain_automation_buffer () const;
969 gain_t* trim_automation_buffer () const;
970 gain_t* send_gain_automation_buffer () const;
971 pan_t** pan_automation_buffer () const;
973 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
977 static int vst_current_loading_id;
978 static const char* vst_can_do_strings[];
979 static const int vst_can_do_string_count;
981 static intptr_t vst_callback (
990 static PBD::Signal0<void> SendFeedback;
994 boost::shared_ptr<Speakers> get_speakers ();
998 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
1000 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
1001 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const ARDOUR::ControllableDescriptor&);
1003 void add_controllable (boost::shared_ptr<PBD::Controllable>);
1004 void remove_controllable (PBD::Controllable*);
1006 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
1008 SessionConfiguration config;
1010 bool exporting () const {
1014 bool bounce_processing() const {
1015 return _bounce_processing_active;
1018 /* this is a private enum, but setup_enum_writer() needs it,
1019 and i can't find a way to give that function
1020 friend access. sigh.
1023 enum PostTransportWork {
1024 PostTransportStop = 0x1,
1025 PostTransportDuration = 0x2,
1026 PostTransportLocate = 0x4,
1027 PostTransportRoll = 0x8,
1028 PostTransportAbort = 0x10,
1029 PostTransportOverWrite = 0x20,
1030 PostTransportSpeed = 0x40,
1031 PostTransportAudition = 0x80,
1032 PostTransportReverse = 0x100,
1033 PostTransportInputChange = 0x200,
1034 PostTransportCurveRealloc = 0x400,
1035 PostTransportClearSubstate = 0x800,
1036 PostTransportAdjustPlaybackBuffering = 0x1000,
1037 PostTransportAdjustCaptureBuffering = 0x2000
1046 SlaveState slave_state() const { return _slave_state; }
1047 Slave* slave() const { return _slave; }
1049 boost::shared_ptr<SessionPlaylists> playlists;
1051 void send_mmc_locate (framepos_t);
1052 void queue_full_time_code () { _send_timecode_update = true; }
1053 void queue_song_position_pointer () { /* currently does nothing */ }
1055 bool step_editing() const { return (_step_editors > 0); }
1057 void request_suspend_timecode_transmission ();
1058 void request_resume_timecode_transmission ();
1059 bool timecode_transmission_suspended () const;
1061 std::vector<std::string> source_search_path(DataType) const;
1062 void ensure_search_path_includes (const std::string& path, DataType type);
1063 void remove_dir_from_search_path (const std::string& path, DataType type);
1065 std::list<std::string> unknown_processors () const;
1067 /** Emitted when a feedback cycle has been detected within Ardour's signal
1068 processing path. Until it is fixed (by the user) some (unspecified)
1069 routes will not be run.
1071 static PBD::Signal0<void> FeedbackDetected;
1073 /** Emitted when a graph sort has successfully completed, which means
1074 that it has no feedback cycles.
1076 static PBD::Signal0<void> SuccessfulGraphSort;
1078 /* handlers can return an integer value:
1079 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1080 to modify the search path and we should try to find it again.
1081 1: quit entire session load
1082 2: as 0, but don't ask about other missing files
1083 3: don't ask about other missing files, and just mark this one missing
1084 -1: just mark this one missing
1085 any other value: as -1
1087 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1089 /** Emitted when the session wants Ardour to quit */
1090 static PBD::Signal0<void> Quit;
1092 /** Emitted when Ardour is asked to load a session in an older session
1093 * format, and makes a backup copy.
1095 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1097 SceneChanger* scene_changer() const { return _scene_changer; }
1099 /* asynchronous MIDI control ports */
1101 boost::shared_ptr<Port> midi_input_port () const;
1102 boost::shared_ptr<Port> midi_output_port () const;
1103 boost::shared_ptr<Port> mmc_output_port () const;
1104 boost::shared_ptr<Port> mmc_input_port () const;
1105 boost::shared_ptr<Port> scene_input_port () const;
1106 boost::shared_ptr<Port> scene_output_port () const;
1108 /* synchronous MIDI ports used for synchronization */
1110 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1111 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1112 boost::shared_ptr<MidiPort> mtc_output_port () const;
1113 boost::shared_ptr<MidiPort> mtc_input_port () const;
1114 boost::shared_ptr<Port> ltc_input_port() const;
1115 boost::shared_ptr<Port> ltc_output_port() const;
1117 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1118 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1120 MIDI::MachineControl& mmc() { return *_mmc; }
1122 void reconnect_midi_scene_ports (bool);
1123 void reconnect_mtc_ports ();
1124 void reconnect_mmc_ports (bool);
1126 void reconnect_ltc_input ();
1127 void reconnect_ltc_output ();
1129 VCAManager& vca_manager() { return *_vca_manager; }
1132 friend class AudioEngine;
1133 void set_block_size (pframes_t nframes);
1134 void set_frame_rate (framecnt_t nframes);
1135 #ifdef USE_TRACKS_CODE_FEATURES
1136 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1141 void schedule_curve_reallocation ();
1142 void update_latency_compensation (bool force = false);
1145 int create (const std::string& mix_template, BusProfile*);
1148 static guint _name_id_counter;
1149 static void init_name_id_counter (guint n);
1150 static unsigned int name_id_counter ();
1153 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
1154 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
1155 StopPendingCapture = 0x4,
1156 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
1157 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
1158 PendingLocate = 0x20,
1161 /* stuff used in process() should be close together to
1165 typedef void (Session::*process_function_type)(pframes_t);
1167 AudioEngine& _engine;
1168 mutable gint processing_prohibited;
1169 process_function_type process_function;
1170 process_function_type last_process_function;
1171 bool _bounce_processing_active;
1172 bool waiting_for_sync_offset;
1173 framecnt_t _base_frame_rate; // sample-rate of the session at creation time, "native" SR
1174 framecnt_t _nominal_frame_rate; // overridden by audioengine setting
1175 framecnt_t _current_frame_rate; // this includes video pullup offset
1176 int transport_sub_state;
1177 mutable gint _record_status;
1178 framepos_t _transport_frame;
1179 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1180 bool _session_range_end_is_free;
1184 // varispeed playback
1185 double _transport_speed;
1186 double _default_transport_speed;
1187 double _last_transport_speed;
1188 double _signalled_varispeed;
1189 double _target_transport_speed;
1190 CubicInterpolation interpolation;
1192 bool auto_play_legal;
1193 framepos_t _last_slave_transport_frame;
1194 framecnt_t maximum_output_latency;
1195 framepos_t _requested_return_frame;
1196 pframes_t current_block_size;
1197 framecnt_t _worst_output_latency;
1198 framecnt_t _worst_input_latency;
1199 framecnt_t _worst_track_latency;
1200 bool _have_captured;
1201 bool _non_soloed_outs_muted;
1203 uint32_t _listen_cnt;
1204 uint32_t _solo_isolated_cnt;
1207 bool _under_nsm_control;
1208 unsigned int _xrun_count;
1210 void mtc_status_changed (bool);
1211 PBD::ScopedConnection mtc_status_connection;
1212 void ltc_status_changed (bool);
1213 PBD::ScopedConnection ltc_status_connection;
1215 void initialize_latencies ();
1216 void set_worst_io_latencies ();
1217 void set_worst_playback_latency ();
1218 void set_worst_capture_latency ();
1219 void set_worst_io_latencies_x (IOChange, void *) {
1220 set_worst_io_latencies ();
1222 void post_capture_latency ();
1223 void post_playback_latency ();
1225 void update_latency_compensation_proxy (void* ignored);
1227 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1229 void process_scrub (pframes_t);
1230 void process_without_events (pframes_t);
1231 void process_with_events (pframes_t);
1232 void process_audition (pframes_t);
1233 void process_export (pframes_t);
1234 void process_export_fw (pframes_t);
1236 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1237 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1238 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1240 static const framecnt_t bounce_chunk_size;
1242 /* slave tracking */
1244 static const int delta_accumulator_size = 25;
1245 int delta_accumulator_cnt;
1246 int32_t delta_accumulator[delta_accumulator_size];
1247 int32_t average_slave_delta;
1249 bool have_first_delta_accumulator;
1251 SlaveState _slave_state;
1254 framepos_t slave_wait_end;
1256 void reset_slave_state ();
1257 bool follow_slave (pframes_t);
1258 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1259 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1260 void follow_slave_silently (pframes_t nframes, float slave_speed);
1262 void switch_to_sync_source (SyncSource); /* !RT context */
1263 void drop_sync_source (); /* !RT context */
1264 void use_sync_source (Slave*); /* RT context */
1266 bool post_export_sync;
1267 framepos_t post_export_position;
1270 bool _export_rolling;
1271 bool _realtime_export;
1272 framepos_t _export_preroll;
1273 framepos_t _export_latency;
1275 boost::shared_ptr<ExportHandler> export_handler;
1276 boost::shared_ptr<ExportStatus> export_status;
1279 int stop_audio_export ();
1280 void finalize_audio_export ();
1281 void finalize_export_internal (bool stop_freewheel);
1282 bool _pre_export_mmc_enabled;
1284 PBD::ScopedConnection export_freewheel_connection;
1286 void get_track_statistics ();
1287 int process_routes (pframes_t, bool& need_butler);
1288 int silent_process_routes (pframes_t, bool& need_butler);
1290 /** @return 1 if there is a pending declick fade-in,
1291 -1 if there is a pending declick fade-out,
1292 0 if there is no pending declick.
1294 int get_transport_declick_required () {
1295 if (transport_sub_state & PendingDeclickIn) {
1296 transport_sub_state &= ~PendingDeclickIn;
1298 } else if (transport_sub_state & PendingDeclickOut) {
1299 /* XXX: not entirely sure why we don't clear this */
1301 } else if (transport_sub_state & PendingLoopDeclickOut) {
1302 /* Return the declick out first ... */
1303 transport_sub_state &= ~PendingLoopDeclickOut;
1305 } else if (transport_sub_state & PendingLoopDeclickIn) {
1306 /* ... then the declick in on the next call */
1307 transport_sub_state &= ~PendingLoopDeclickIn;
1314 bool maybe_stop (framepos_t limit);
1315 bool maybe_sync_start (pframes_t &);
1317 void check_declick_out ();
1323 /** Number of process frames since the last MTC output (when sending MTC); used to
1324 * know when to send full MTC messages every so often.
1326 pframes_t _pframes_since_last_mtc;
1327 bool session_midi_feedback;
1330 framepos_t last_loopend;
1332 boost::scoped_ptr<SessionDirectory> _session_dir;
1335 void graph_reordered ();
1337 /** current snapshot name, without the .ardour suffix */
1338 void set_snapshot_name (const std::string &);
1339 void save_snapshot_name (const std::string &);
1340 std::string _current_snapshot_name;
1342 XMLTree* state_tree;
1343 bool state_was_pending;
1344 StateOfTheState _state_of_the_state;
1346 friend class StateProtector;
1347 gint _suspend_save; /* atomic */
1348 volatile bool _save_queued;
1349 Glib::Threads::Mutex save_state_lock;
1350 Glib::Threads::Mutex peak_cleanup_lock;
1352 int load_options (const XMLNode&);
1353 int load_state (std::string snapshot_name);
1355 framepos_t _last_roll_location;
1356 /** the session frame time at which we last rolled, located, or changed transport direction */
1357 framepos_t _last_roll_or_reversal_location;
1358 framepos_t _last_record_location;
1360 bool pending_locate_roll;
1361 framepos_t pending_locate_frame;
1362 bool pending_locate_flush;
1364 bool pending_auto_loop;
1366 PBD::ReallocPool _mempool;
1368 Glib::Threads::Mutex lua_lock;
1369 luabridge::LuaRef * _lua_run;
1370 luabridge::LuaRef * _lua_add;
1371 luabridge::LuaRef * _lua_del;
1372 luabridge::LuaRef * _lua_list;
1373 luabridge::LuaRef * _lua_load;
1374 luabridge::LuaRef * _lua_save;
1375 luabridge::LuaRef * _lua_cleanup;
1376 uint32_t _n_lua_scripts;
1379 void try_run_lua (pframes_t);
1383 static const PostTransportWork ProcessCannotProceedMask =
1385 PostTransportInputChange|
1387 PostTransportReverse|
1388 PostTransportCurveRealloc|
1389 PostTransportAudition|
1390 PostTransportLocate|
1392 PostTransportClearSubstate);
1394 gint _post_transport_work; /* accessed only atomic ops */
1395 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1396 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1397 void add_post_transport_work (PostTransportWork ptw);
1399 void schedule_playback_buffering_adjustment ();
1400 void schedule_capture_buffering_adjustment ();
1402 uint32_t cumulative_rf_motion;
1405 void set_rf_speed (float speed);
1406 void reset_rf_scale (framecnt_t frames_moved);
1408 Locations* _locations;
1409 void location_added (Location*);
1410 void location_removed (Location*);
1411 void locations_changed ();
1412 void _locations_changed (const Locations::LocationList&);
1414 void update_skips (Location*, bool consolidate);
1415 void update_marks (Location* loc);
1416 void consolidate_skips (Location*);
1417 void sync_locations_to_skips ();
1418 void _sync_locations_to_skips ();
1420 PBD::ScopedConnectionList skip_update_connections;
1421 bool _ignore_skips_updates;
1423 PBD::ScopedConnectionList punch_connections;
1424 void auto_punch_start_changed (Location *);
1425 void auto_punch_end_changed (Location *);
1426 void auto_punch_changed (Location *);
1428 PBD::ScopedConnectionList loop_connections;
1429 void auto_loop_changed (Location *);
1430 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1432 int ensure_engine (uint32_t desired_sample_rate, bool);
1433 void pre_engine_init (std::string path);
1434 int post_engine_init ();
1435 int immediately_post_engine ();
1436 void remove_empty_sounds ();
1438 void session_loaded ();
1440 void setup_midi_control ();
1441 int midi_read (MIDI::Port *);
1443 void enable_record ();
1445 void increment_transport_position (framecnt_t val) {
1446 if (max_framepos - val < _transport_frame) {
1447 _transport_frame = max_framepos;
1449 _transport_frame += val;
1453 void decrement_transport_position (framecnt_t val) {
1454 if (val < _transport_frame) {
1455 _transport_frame -= val;
1457 _transport_frame = 0;
1461 void post_transport_motion ();
1462 static void *session_loader_thread (void *arg);
1466 /* Signal Forwarding */
1467 void emit_route_signals ();
1468 void emit_thread_run ();
1469 static void *emit_thread (void *);
1470 void emit_thread_start ();
1471 void emit_thread_terminate ();
1473 pthread_t _rt_emit_thread;
1474 bool _rt_thread_active;
1476 pthread_mutex_t _rt_emit_mutex;
1477 pthread_cond_t _rt_emit_cond;
1478 bool _rt_emit_pending;
1480 /* Auto Connect Thread */
1481 static void *auto_connect_thread (void *);
1482 void auto_connect_thread_run ();
1483 void auto_connect_thread_start ();
1484 void auto_connect_thread_terminate ();
1486 pthread_t _auto_connect_thread;
1487 bool _ac_thread_active;
1488 pthread_mutex_t _auto_connect_mutex;
1489 pthread_cond_t _auto_connect_cond;
1491 struct AutoConnectRequest {
1493 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1494 const ChanCount& is,
1495 const ChanCount& os,
1496 const ChanCount& io,
1497 const ChanCount& oo)
1498 : route (boost::weak_ptr<Route> (r))
1499 , connect_inputs (ci)
1503 , output_offset (oo)
1506 boost::weak_ptr <Route> route;
1507 bool connect_inputs;
1508 ChanCount input_start;
1509 ChanCount output_start;
1510 ChanCount input_offset;
1511 ChanCount output_offset;
1514 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1515 Glib::Threads::Mutex _auto_connect_queue_lock;
1516 AutoConnectQueue _auto_connect_queue;
1517 guint _latency_recompute_pending;
1519 void auto_connect (const AutoConnectRequest&);
1520 void queue_latency_recompute ();
1522 /* SessionEventManager interface */
1524 void process_event (SessionEvent*);
1525 void set_next_event ();
1526 void cleanup_event (SessionEvent*,int);
1528 /* MIDI Machine Control */
1531 void spp_continue ();
1534 void mmc_deferred_play (MIDI::MachineControl &);
1535 void mmc_stop (MIDI::MachineControl &);
1536 void mmc_step (MIDI::MachineControl &, int);
1537 void mmc_pause (MIDI::MachineControl &);
1538 void mmc_record_pause (MIDI::MachineControl &);
1539 void mmc_record_strobe (MIDI::MachineControl &);
1540 void mmc_record_exit (MIDI::MachineControl &);
1541 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1542 void mmc_fast_forward (MIDI::MachineControl &);
1543 void mmc_rewind (MIDI::MachineControl &);
1544 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1545 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1546 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1548 struct timeval last_mmc_step;
1551 typedef boost::function<bool()> MidiTimeoutCallback;
1552 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1554 MidiTimeoutList midi_timeouts;
1555 bool mmc_step_timeout ();
1556 void send_immediate_mmc (MIDI::MachineControlCommand);
1558 MIDI::byte mtc_msg[16];
1559 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1560 MIDI::byte midi_msg[16];
1561 double outbound_mtc_timecode_frame;
1562 Timecode::Time transmitting_timecode_time;
1563 int next_quarter_frame_to_send;
1565 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1566 framecnt_t _frames_per_hour;
1567 framecnt_t _timecode_frames_per_hour;
1569 /* cache the most-recently requested time conversions. This helps when we
1570 * have multiple clocks showing the same time (e.g. the transport frame) */
1571 bool last_timecode_valid;
1572 framepos_t last_timecode_when;
1573 Timecode::Time last_timecode;
1575 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1577 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1579 LTCEncoder* ltc_encoder;
1580 ltcsnd_sample_t* ltc_enc_buf;
1582 Timecode::TimecodeFormat ltc_enc_tcformat;
1583 int32_t ltc_buf_off;
1584 int32_t ltc_buf_len;
1587 int32_t ltc_enc_byte;
1588 framepos_t ltc_enc_pos;
1590 framepos_t ltc_enc_off;
1592 framepos_t ltc_prev_cycle;
1594 framepos_t ltc_timecode_offset;
1595 bool ltc_timecode_negative_offset;
1597 LatencyRange ltc_out_latency;
1599 void ltc_tx_initialize();
1600 void ltc_tx_cleanup();
1601 void ltc_tx_reset();
1602 void ltc_tx_resync_latency();
1603 void ltc_tx_recalculate_position();
1604 void ltc_tx_parse_offset();
1605 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1607 void reset_record_status ();
1609 int no_roll (pframes_t nframes);
1610 int fail_roll (pframes_t nframes);
1612 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1613 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1615 MidiControlUI* midi_control_ui;
1617 int start_midi_thread ();
1619 void set_play_loop (bool yn, double speed);
1620 void unset_play_loop ();
1621 void overwrite_some_buffers (Track *);
1622 void flush_all_inserts ();
1623 int micro_locate (framecnt_t distance);
1624 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1625 void start_locate (framepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1626 void force_locate (framepos_t frame, bool with_roll = false);
1627 void set_track_speed (Track *, double speed);
1628 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1629 void stop_transport (bool abort = false, bool clear_state = false);
1630 void start_transport ();
1631 void realtime_stop (bool abort, bool clear_state);
1632 void realtime_locate ();
1633 void non_realtime_start_scrub ();
1634 void non_realtime_set_speed ();
1635 void non_realtime_locate ();
1636 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1637 void non_realtime_overwrite (int entry_request_count, bool& finished);
1638 void post_transport ();
1639 void engine_halted ();
1640 void xrun_recovery ();
1641 void set_track_loop (bool);
1642 bool select_playhead_priority_target (framepos_t&);
1643 void follow_playhead_priority ();
1645 /* These are synchronous and so can only be called from within the process
1649 int send_full_time_code (framepos_t, pframes_t nframes);
1650 void send_song_position_pointer (framepos_t);
1652 TempoMap *_tempo_map;
1653 void tempo_map_changed (const PBD::PropertyChange&);
1654 void gui_tempo_map_changed ();
1656 /* edit/mix groups */
1658 int load_route_groups (const XMLNode&, int);
1660 std::list<RouteGroup *> _route_groups;
1661 RouteGroup* _all_route_group;
1665 boost::shared_ptr<Graph> _process_graph;
1667 SerializedRCUManager<RouteList> routes;
1669 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save, PresentationInfo::order_t);
1670 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect, PresentationInfo::order_t);
1671 bool _adding_routes_in_progress;
1672 bool _reconnecting_routes_in_progress;
1673 bool _route_deletion_in_progress;
1675 uint32_t destructive_index;
1677 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1678 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1680 void route_processors_changed (RouteProcessorChange);
1682 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1683 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1684 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1685 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1687 /* track numbering */
1689 void reassign_track_numbers ();
1690 uint32_t _track_number_decimals;
1692 /* solo/mute/notifications */
1694 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1695 void route_mute_changed ();
1696 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1697 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1699 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1701 void listen_position_changed ();
1702 void solo_control_mode_changed ();
1704 /* REGION MANAGEMENT */
1706 mutable Glib::Threads::Mutex region_lock;
1708 int load_regions (const XMLNode& node);
1709 int load_compounds (const XMLNode& node);
1711 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1712 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1713 void route_group_property_changed (RouteGroup *);
1717 mutable Glib::Threads::Mutex source_lock;
1720 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1723 void reset_write_sources (bool mark_write_complete, bool force = false);
1728 int load_sources (const XMLNode& node);
1729 XMLNode& get_sources_as_xml ();
1731 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1735 void remove_playlist (boost::weak_ptr<Playlist>);
1736 void track_playlist_changed (boost::weak_ptr<Track>);
1737 void playlist_region_added (boost::weak_ptr<Region>);
1738 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1739 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1741 /* CURVES and AUTOMATION LISTS */
1742 std::map<PBD::ID, AutomationList*> automation_lists;
1744 /* DEFAULT FADE CURVES */
1746 float default_fade_steepness;
1747 float default_fade_msecs;
1751 boost::shared_ptr<Auditioner> auditioner;
1752 void set_audition (boost::shared_ptr<Region>);
1753 void non_realtime_set_audition ();
1754 boost::shared_ptr<Region> pending_audition_region;
1760 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1762 /* INSERT AND SEND MANAGEMENT */
1764 boost::dynamic_bitset<uint32_t> send_bitset;
1765 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1766 boost::dynamic_bitset<uint32_t> return_bitset;
1767 boost::dynamic_bitset<uint32_t> insert_bitset;
1771 struct space_and_path {
1772 uint32_t blocks; ///< 4kB blocks
1773 bool blocks_unknown; ///< true if blocks is unknown
1778 , blocks_unknown (true)
1782 struct space_and_path_ascending_cmp {
1783 bool operator() (space_and_path a, space_and_path b) {
1784 if (a.blocks_unknown != b.blocks_unknown) {
1785 return !a.blocks_unknown;
1787 return a.blocks > b.blocks;
1791 void setup_raid_path (std::string path);
1793 std::vector<space_and_path> session_dirs;
1794 std::vector<space_and_path>::iterator last_rr_session_dir;
1795 uint32_t _total_free_4k_blocks;
1796 /** If this is true, _total_free_4k_blocks is not definite,
1797 as one or more of the session directories' filesystems
1798 could not report free space.
1800 bool _total_free_4k_blocks_uncertain;
1801 Glib::Threads::Mutex space_lock;
1803 bool no_questions_about_missing_files;
1805 std::string get_best_session_directory_for_new_audio ();
1807 mutable gint _playback_load;
1808 mutable gint _capture_load;
1812 SerializedRCUManager<BundleList> _bundles;
1813 XMLNode* _bundle_xml_node;
1814 int load_bundles (XMLNode const &);
1816 UndoHistory _history;
1817 /** current undo transaction, or 0 */
1818 UndoTransaction* _current_trans;
1819 /** GQuarks to describe the reversible commands that are currently in progress.
1820 * These may be nested, in which case more recently-started commands are toward
1821 * the front of the list.
1823 std::list<GQuark> _current_trans_quarks;
1825 int backend_sync_callback (TransportState, framepos_t);
1827 void process_rtop (SessionEvent*);
1829 void update_latency (bool playback);
1831 XMLNode& state(bool);
1834 typedef std::list<Click*> Clicks;
1837 boost::shared_ptr<IO> _click_io;
1838 boost::shared_ptr<Amp> _click_gain;
1840 Sample* click_emphasis_data;
1841 framecnt_t click_length;
1842 framecnt_t click_emphasis_length;
1843 mutable Glib::Threads::RWLock click_lock;
1845 static const Sample default_click[];
1846 static const framecnt_t default_click_length;
1847 static const Sample default_click_emphasis[];
1848 static const framecnt_t default_click_emphasis_length;
1851 framepos_t _clicks_cleared;
1852 void setup_click_sounds (int which);
1853 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1854 void clear_clicks ();
1855 void click (framepos_t start, framecnt_t nframes);
1857 std::vector<Route*> master_outs;
1859 /* range playback */
1861 std::list<AudioRange> current_audio_range;
1863 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1864 void unset_play_range ();
1866 /* temporary hacks to allow selection to be pushed from GUI into backend
1867 Whenever we move the selection object into libardour, these will go away.
1869 Evoral::Range<framepos_t> _range_selection;
1870 Evoral::Range<framepos_t> _object_selection;
1875 boost::shared_ptr<Route> _master_out;
1876 boost::shared_ptr<Route> _monitor_out;
1878 void auto_connect_master_bus ();
1880 /* Windows VST support */
1882 long _windows_vst_callback (
1891 int find_all_sources (std::string path, std::set<std::string>& result);
1892 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1894 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1895 Glib::Threads::Mutex controllables_lock;
1896 Controllables controllables;
1898 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1900 void reset_native_file_format();
1901 bool first_file_data_format_reset;
1902 bool first_file_header_format_reset;
1904 void config_changed (std::string, bool);
1906 XMLNode& get_control_protocol_state ();
1908 void set_history_depth (uint32_t depth);
1910 static bool _disable_all_loaded_plugins;
1911 static bool _bypass_all_loaded_plugins;
1913 mutable bool have_looped; ///< Used in ::audible_frame(*)
1915 void update_route_record_state ();
1916 gint _have_rec_enabled_track;
1917 gint _have_rec_disabled_track;
1919 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1921 /* realtime "apply to set of routes" operations */
1922 template<typename T> SessionEvent*
1923 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1924 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1925 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1926 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1927 ev->rt_return = after;
1928 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1933 /* specialized version realtime "apply to set of routes" operations */
1934 template<typename T1, typename T2> SessionEvent*
1935 get_rt_event (boost::shared_ptr<RouteList> rl, T1 t1arg, T2 t2arg, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1936 void (Session::*method) (boost::shared_ptr<RouteList>, T1, T2, PBD::Controllable::GroupControlDisposition)) {
1937 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1938 ev->rt_slot = boost::bind (method, this, rl, t1arg, t2arg, group_override);
1939 ev->rt_return = after;
1940 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1945 /* specialized version realtime "apply to set of controls" operations */
1946 SessionEvent* get_rt_event (boost::shared_ptr<ControlList> cl, double arg, PBD::Controllable::GroupControlDisposition group_override) {
1947 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1948 ev->rt_slot = boost::bind (&Session::rt_set_controls, this, cl, arg, group_override);
1949 ev->rt_return = Session::rt_cleanup;
1950 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1955 void rt_set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition group_override);
1956 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1958 /** temporary list of Diskstreams used only during load of 2.X sessions */
1959 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1961 void set_session_range_location (framepos_t, framepos_t);
1963 void setup_midi_machine_control ();
1965 void step_edit_status_change (bool);
1966 uint32_t _step_editors;
1968 /** true if timecode transmission by the transport is suspended, otherwise false */
1969 mutable gint _suspend_timecode_transmission;
1971 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1973 void start_time_changed (framepos_t);
1974 void end_time_changed (framepos_t);
1976 void set_track_monitor_input_status (bool);
1977 framepos_t compute_stop_limit () const;
1979 boost::shared_ptr<Speakers> _speakers;
1980 void load_nested_sources (const XMLNode& node);
1982 /** The directed graph of routes that is currently being used for audio processing
1983 and solo/mute computations.
1985 GraphEdges _current_route_graph;
1987 void ensure_route_presentation_info_gap (PresentationInfo::order_t, uint32_t gap_size);
1988 bool ignore_route_processor_changes;
1990 MidiClockTicker* midi_clock;
1992 boost::shared_ptr<IO> _ltc_input;
1993 boost::shared_ptr<IO> _ltc_output;
1995 /* Scene Changing */
1996 SceneChanger* _scene_changer;
1998 /* persistent, non-track related MIDI ports */
1999 MidiPortManager* _midi_ports;
2000 MIDI::MachineControl* _mmc;
2003 void setup_click ();
2004 void setup_click_state (const XMLNode*);
2005 void setup_bundles ();
2007 void save_as_bring_callback (uint32_t, uint32_t, std::string);
2009 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
2010 static const uint32_t session_end_shift;
2012 std::string _template_state_dir;
2014 VCAManager* _vca_manager;
2016 boost::shared_ptr<Route> get_midi_nth_route_by_id (PresentationInfo::order_t n) const;
2018 std::string created_with;
2022 } // namespace ARDOUR
2024 #endif /* __ardour_session_h__ */