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/rc_configuration.h"
68 #include "ardour/session_configuration.h"
69 #include "ardour/session_event.h"
70 #include "ardour/interpolation.h"
71 #include "ardour/plugin.h"
72 #include "ardour/route.h"
73 #include "ardour/route_graph.h"
79 typedef struct _AEffect AEffect;
89 class ControllableDescriptor;
104 class AudioFileSource;
109 class AutomationList;
122 class MidiClockTicker;
124 class MidiPortManager;
143 class SessionDirectory;
144 class SessionMetadata;
145 class SessionPlaylists;
151 class WindowsVSTPlugin;
153 extern void setup_enum_writer ();
155 class LIBARDOUR_API SessionException: public std::exception {
157 explicit SessionException(const std::string msg) : _message(msg) {}
158 virtual ~SessionException() throw() {}
160 virtual const char* what() const throw() { return _message.c_str(); }
163 std::string _message;
166 /** Ardour Session */
167 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
176 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
177 the bus profile can be null if no master out bus is required.
180 Session (AudioEngine&,
181 const std::string& fullpath,
182 const std::string& snapshot_name,
183 BusProfile* bus_profile = 0,
184 std::string mix_template = "");
188 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format);
189 static std::string get_snapshot_from_instant (const std::string& session_dir);
191 /** a monotonic counter used for naming user-visible things uniquely
192 * (curently the sidechain port).
193 * Use sparingly to keep the numbers low, prefer PBD::ID for all
194 * internal, not user-visible IDs */
195 static unsigned int next_name_id ();
197 std::string path() const { return _path; }
198 std::string name() const { return _name; }
199 std::string snap_name() const { return _current_snapshot_name; }
200 std::string raid_path () const;
201 bool path_is_within_session (const std::string&);
203 bool writable() const { return _writable; }
206 bool dirty() const { return _state_of_the_state & Dirty; }
207 void set_deletion_in_progress ();
208 void clear_deletion_in_progress ();
209 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
210 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
211 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
212 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
214 PBD::Signal0<void> DirtyChanged;
216 PBD::Signal1<void, bool> RouteAddedOrRemoved;
218 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
220 static PBD::Signal1<void,std::string> Dialog;
222 PBD::Signal0<void> BatchUpdateStart;
223 PBD::Signal0<void> BatchUpdateEnd;
225 int ensure_subdirs ();
227 std::string automation_dir () const; ///< Automation data
228 std::string analysis_dir () const; ///< Analysis data
229 std::string plugins_dir () const; ///< Plugin state
230 std::string externals_dir () const; ///< Links to external files
232 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
234 bool audio_source_name_is_unique (const std::string& name);
235 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);
236 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
237 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
238 std::string new_midi_source_path (const std::string&);
239 /** create a new track or bus from a template (XML path)
240 * @param how_many how many tracks or busses to create
241 * @param template_path path to xml template file
242 * @param name name (prefix) of the route to create
243 * @param pd Playlist disposition
244 * @return list of newly created routes
246 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path, const std::string& name, PlaylistDisposition pd = NewPlaylist);
247 RouteList new_route_from_template (uint32_t how_many, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
248 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path, uint32_t channels);
250 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
252 void process (pframes_t nframes);
254 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
255 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
256 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
257 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
258 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
260 bool have_rec_enabled_track () const;
261 bool have_rec_disabled_track () const;
263 bool have_captured() const { return _have_captured; }
265 void refill_all_track_buffers ();
266 Butler* butler() { return _butler; }
267 void butler_transport_work ();
269 void refresh_disk_space ();
271 int load_diskstreams_2X (XMLNode const &, int);
273 int load_routes (const XMLNode&, int);
274 boost::shared_ptr<RouteList> get_routes() const {
275 return routes.reader ();
278 boost::shared_ptr<RouteList> get_tracks() const;
279 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
280 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
282 uint32_t nroutes() const { return routes.reader()->size(); }
283 uint32_t ntracks () const;
284 uint32_t nbusses () const;
286 boost::shared_ptr<BundleList> bundles () {
287 return _bundles.reader ();
290 struct LIBARDOUR_API RoutePublicOrderSorter {
291 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
294 void set_order_hint (int32_t order_hint) {_order_hint = order_hint;};
295 void notify_remote_id_change ();
296 void sync_order_keys ();
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&);
304 boost::shared_ptr<Route> route_by_name (std::string);
305 boost::shared_ptr<Route> route_by_id (PBD::ID);
306 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
307 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt);
308 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID);
309 void routes_using_input_from (const std::string& str, RouteList& rl);
311 bool route_name_unique (std::string) const;
312 bool route_name_internal (std::string) const;
314 uint32_t track_number_decimals () const {
315 return _track_number_decimals;
318 bool get_record_enabled() const {
319 return (record_status () >= Enabled);
322 RecordState record_status() const {
323 return (RecordState) g_atomic_int_get (&_record_status);
326 bool actively_recording () const {
327 return record_status() == Recording;
330 bool record_enabling_legal () const;
331 void maybe_enable_record ();
332 void disable_record (bool rt_context, bool force = false);
333 void step_back_from_record ();
335 void set_all_tracks_record_enabled(bool);
337 void maybe_write_autosave ();
339 /* Emitted when all i/o connections are complete */
341 PBD::Signal0<void> IOConnectionsComplete;
343 /* Timecode status signals */
344 PBD::Signal1<void, bool> MTCSyncStateChanged;
345 PBD::Signal1<void, bool> LTCSyncStateChanged;
347 /* Record status signals */
349 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
350 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
351 from the previous signal and session state.
353 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
355 /* Emited when session is loaded */
356 PBD::Signal0<void> SessionLoaded;
358 /* Transport mechanism signals */
360 /** Emitted on the following changes in transport state:
361 * - stop (from the butler thread)
362 * - change in whether or not we are looping (from the process thread)
363 * - change in the play range (from the process thread)
364 * - start (from the process thread)
367 PBD::Signal0<void> TransportStateChange;
369 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
370 PBD::Signal1<void,framepos_t> Xrun;
371 PBD::Signal0<void> TransportLooped;
373 /** emitted when a locate has occurred */
374 PBD::Signal0<void> Located;
376 PBD::Signal1<void,RouteList&> RouteAdded;
377 /** Emitted when a property of one of our route groups changes.
378 * The parameter is the RouteGroup that has changed.
380 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
381 /** Emitted when a route is added to one of our route groups.
382 * First parameter is the RouteGroup, second is the route.
384 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
385 /** Emitted when a route is removed from one of our route groups.
386 * First parameter is the RouteGroup, second is the route.
388 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
390 /* Step Editing status changed */
391 PBD::Signal1<void,bool> StepEditStatusChange;
393 /* Timecode state signals */
394 PBD::Signal0<void> MtcOrLtcInputPortChanged;
396 void queue_event (SessionEvent*);
398 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
399 void request_bounded_roll (framepos_t start, framepos_t end);
400 void request_stop (bool abort = false, bool clear_state = false);
401 void request_locate (framepos_t frame, bool with_roll = false);
403 void request_play_loop (bool yn, bool leave_rolling = false);
404 bool get_play_loop () const { return play_loop; }
406 framepos_t last_transport_start () const { return _last_roll_location; }
409 void use_rf_shuttle_speed ();
410 void allow_auto_play (bool yn);
411 void request_transport_speed (double speed, bool as_default = true);
412 void request_transport_speed_nonzero (double, bool as_default = true);
413 void request_overwrite_buffer (Track *);
414 void adjust_playback_buffering();
415 void adjust_capture_buffering();
416 void request_track_speed (Track *, double speed);
417 void request_input_change_handling ();
419 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
420 bool transport_locked () const;
424 framepos_t current_end_frame () const;
425 framepos_t current_start_frame () const;
426 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
427 framecnt_t frame_rate () const { return _current_frame_rate; }
428 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
429 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
430 framecnt_t frames_per_hour () const { return _frames_per_hour; }
432 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
433 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
435 MIDI::byte get_mtc_timecode_bits() const {
436 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
439 double timecode_frames_per_second() const;
440 bool timecode_drop_frames() const;
444 Locations *locations() { return _locations; }
446 PBD::Signal1<void,Location*> auto_loop_location_changed;
447 PBD::Signal1<void,Location*> auto_punch_location_changed;
448 PBD::Signal0<void> locations_modified;
450 void set_auto_punch_location (Location *);
451 void set_auto_loop_location (Location *);
452 void set_session_extents (framepos_t start, framepos_t end);
453 int location_name(std::string& result, std::string base = std::string(""));
455 pframes_t get_block_size() const { return current_block_size; }
456 framecnt_t worst_output_latency () const { return _worst_output_latency; }
457 framecnt_t worst_input_latency () const { return _worst_input_latency; }
458 framecnt_t worst_track_latency () const { return _worst_track_latency; }
459 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
462 std::string new_parent_folder; /* parent folder where new session folder will be created */
463 std::string new_name; /* name of newly saved session */
464 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
465 bool include_media; /* true if the newly saved session should contain references to media */
466 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
467 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
469 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
471 /* emitted as we make progress. 3 arguments passed to signal
474 * 1: percentage complete measured as a fraction (0-1.0) of
475 * total data copying done.
476 * 2: number of files copied so far
477 * 3: total number of files to copy
479 * Handler should return true for save-as to continue, or false
480 * to stop (and remove all evidence of partial save-as).
482 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
484 /* if save_as() returns non-zero, this string will indicate the reason why.
486 std::string failure_message;
489 int save_as (SaveAs&);
491 * @param snapshot_name name of the session (use an empty string for the current name)
492 * @param pending save a 'recovery', not full state (default: false)
493 * @param switch_to_snapshot switch to given snapshot after saving (default: false)
494 * @param template_only save a session template (default: false)
495 * @return zero on success
497 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
498 int restore_state (std::string snapshot_name);
499 int save_template (std::string template_name, bool replace_existing = false);
500 int save_history (std::string snapshot_name = "");
501 int restore_history (std::string snapshot_name);
502 void remove_state (std::string snapshot_name);
503 void rename_state (std::string old_name, std::string new_name);
504 void remove_pending_capture_state ();
505 int rename (const std::string&);
506 bool get_nsm_state () const { return _under_nsm_control; }
507 void set_nsm_state (bool state) { _under_nsm_control = state; }
508 bool save_default_options ();
510 PBD::Signal1<void,std::string> StateSaved;
511 PBD::Signal0<void> StateReady;
513 /* emitted when session needs to be saved due to some internal
514 * event or condition (i.e. not in response to a user request).
516 * Only one object should
517 * connect to this signal and take responsibility.
519 * Argument is the snapshot name to use when saving.
521 PBD::Signal1<void,std::string> SaveSessionRequested;
523 /* emitted during a session save to allow other entities to add state, via
524 * extra XML, to the session state
526 PBD::Signal0<void> SessionSaveUnderway;
528 std::vector<std::string> possible_states() const;
529 static std::vector<std::string> possible_states (std::string path);
531 XMLNode& get_state();
532 int set_state(const XMLNode& node, int version); // not idempotent
533 XMLNode& get_template();
535 /// The instant xml file is written to the session directory
536 void add_instant_xml (XMLNode&, bool write_to_config = true);
537 XMLNode* instant_xml (const std::string& str);
539 enum StateOfTheState {
544 InitialConnecting = 0x8,
550 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
552 class StateProtector {
554 StateProtector (Session* s) : _session (s) {
555 g_atomic_int_inc (&s->_suspend_save);
558 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
559 while (_session->_save_queued) {
560 _session->_save_queued = false;
561 _session->save_state ("");
569 void add_route_group (RouteGroup *);
570 void remove_route_group (RouteGroup&);
571 void reorder_route_groups (std::list<RouteGroup*>);
573 RouteGroup* route_group_by_name (std::string);
574 RouteGroup& all_route_group() const;
576 PBD::Signal1<void,RouteGroup*> route_group_added;
577 PBD::Signal0<void> route_group_removed;
578 PBD::Signal0<void> route_groups_reordered;
580 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
581 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
586 std::list<RouteGroup*> const & route_groups () const {
587 return _route_groups;
590 /* fundamental operations. duh. */
592 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
595 TrackMode mode = Normal,
596 RouteGroup* route_group = 0,
597 uint32_t how_many = 1,
598 std::string name_template = ""
601 RouteList new_audio_route (
602 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
605 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
606 const ChanCount& input, const ChanCount& output,
607 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
608 TrackMode mode = Normal,
609 RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = "",
610 Plugin::PresetRecord* pset = 0
613 RouteList new_midi_route (RouteGroup* route_group,
615 std::string name_template = "",
616 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
617 Plugin::PresetRecord* pset = 0);
619 void remove_routes (boost::shared_ptr<RouteList>);
620 void remove_route (boost::shared_ptr<Route>);
622 void resort_routes ();
623 void resort_routes_using (boost::shared_ptr<RouteList>);
625 AudioEngine & engine() { return _engine; }
626 AudioEngine const & engine () const { return _engine; }
628 static std::string default_track_name_pattern (DataType);
632 framepos_t transport_frame () const {return _transport_frame; }
633 framepos_t record_location () const {return _last_record_location; }
634 framepos_t audible_frame () const;
635 framepos_t requested_return_frame() const { return _requested_return_frame; }
636 void set_requested_return_frame(framepos_t return_to);
650 void sync_time_vars();
652 void bbt_time (framepos_t when, Timecode::BBT_Time&);
653 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
654 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
655 void timecode_time (Timecode::Time &);
656 void timecode_time (framepos_t when, Timecode::Time&);
657 void timecode_time_subframes (framepos_t when, Timecode::Time&);
659 void timecode_duration (framecnt_t, Timecode::Time&) const;
660 void timecode_duration_string (char *, size_t len, framecnt_t) const;
662 framecnt_t convert_to_frames (AnyTime const & position);
663 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
665 static PBD::Signal1<void, framepos_t> StartTimeChanged;
666 static PBD::Signal1<void, framepos_t> EndTimeChanged;
668 void request_sync_source (Slave*);
669 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
670 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
671 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
673 double transport_speed() const { return _transport_speed; }
674 bool transport_stopped() const { return _transport_speed == 0.0f; }
675 bool transport_rolling() const { return _transport_speed != 0.0f; }
677 bool silent () { return _silent; }
679 TempoMap& tempo_map() { return *_tempo_map; }
680 const TempoMap& tempo_map() const { return *_tempo_map; }
682 unsigned int get_xrun_count () const {return _xrun_count; }
683 void reset_xrun_count () {_xrun_count = 0; }
687 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
689 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
690 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
691 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
693 /* source management */
695 void import_files (ImportStatus&);
696 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
697 std::string build_tmp_convert_name (std::string file);
699 boost::shared_ptr<ExportHandler> get_export_handler ();
700 boost::shared_ptr<ExportStatus> get_export_status ();
702 int start_audio_export (framepos_t position);
704 PBD::Signal1<int, framecnt_t> ProcessExport;
705 static PBD::Signal2<void,std::string, std::string> Exported;
707 void add_source (boost::shared_ptr<Source>);
708 void remove_source (boost::weak_ptr<Source>);
710 void cleanup_regions();
711 bool can_cleanup_peakfiles () const;
712 int cleanup_peakfiles ();
713 int cleanup_sources (CleanupReport&);
714 int cleanup_trash_sources (CleanupReport&);
716 int destroy_sources (std::list<boost::shared_ptr<Source> >);
718 int remove_last_capture ();
720 /** handlers should return 0 for "everything OK", and any other value for
721 * "cannot setup audioengine".
723 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
725 /** handlers should return -1 for "stop cleanup",
726 0 for "yes, delete this playlist",
727 1 for "no, don't delete this playlist".
729 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
731 /** handlers should return 0 for "ignore the rate mismatch",
732 !0 for "do not use this session"
734 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
736 /** non interactive message */
737 static PBD::Signal2<void, framecnt_t, framecnt_t> NotifyAboutSampleRateMismatch;
739 /** handlers should return !0 for use pending state, 0 for ignore it.
741 static PBD::Signal0<int> AskAboutPendingState;
743 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
744 size_t, std::string const &, uint32_t, bool destructive);
746 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
747 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
749 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
750 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
751 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
752 uint32_t count_sources_by_origin (const std::string&);
754 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
756 /* Curves and AutomationLists (TODO when they go away) */
757 void add_automation_list(AutomationList*);
761 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
762 void audition_playlist ();
763 void audition_region (boost::shared_ptr<Region>);
764 void cancel_audition ();
765 bool is_auditioning () const;
767 PBD::Signal1<void,bool> AuditionActive;
770 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
771 void unregister_lua_function (const std::string& name);
772 std::vector<std::string> registered_lua_functions ();
773 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
774 void scripts_changed (); // called from lua, updates _n_lua_scripts
776 /* flattening stuff */
778 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
779 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
780 boost::shared_ptr<Processor> endpoint,
781 bool include_endpoint, bool for_export, bool for_freeze);
782 int freeze_all (InterThreadInfo&);
784 /* session-wide solo/mute/rec-enable */
786 bool soloing() const { return _non_soloed_outs_muted; }
787 bool listening() const { return _listen_cnt > 0; }
788 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
790 static const SessionEvent::RTeventCallback rt_cleanup;
792 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
793 void clear_all_solo_state (boost::shared_ptr<RouteList>);
794 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
795 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
796 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
797 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
798 void set_record_safe (boost::shared_ptr<RouteList>, bool yn, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
799 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
800 void set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
801 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
803 PBD::Signal1<void,bool> SoloActive;
804 PBD::Signal0<void> SoloChanged;
805 PBD::Signal0<void> IsolatedChanged;
806 PBD::Signal0<void> MonitorChanged;
808 PBD::Signal0<void> session_routes_reconnected;
810 /* monitor/master out */
812 void add_monitor_section ();
813 void reset_monitor_section ();
814 void remove_monitor_section ();
815 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
817 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
818 boost::shared_ptr<Route> master_out() const { return _master_out; }
820 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
821 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
822 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
823 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
824 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
825 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
826 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
828 static void set_disable_all_loaded_plugins (bool yn) {
829 _disable_all_loaded_plugins = yn;
831 static bool get_disable_all_loaded_plugins() {
832 return _disable_all_loaded_plugins;
834 static void set_bypass_all_loaded_plugins (bool yn) {
835 _bypass_all_loaded_plugins = yn;
837 static bool get_bypass_all_loaded_plugins() {
838 return _bypass_all_loaded_plugins;
841 uint32_t next_send_id();
842 uint32_t next_aux_send_id();
843 uint32_t next_return_id();
844 uint32_t next_insert_id();
845 void mark_send_id (uint32_t);
846 void mark_aux_send_id (uint32_t);
847 void mark_return_id (uint32_t);
848 void mark_insert_id (uint32_t);
849 void unmark_send_id (uint32_t);
850 void unmark_aux_send_id (uint32_t);
851 void unmark_return_id (uint32_t);
852 void unmark_insert_id (uint32_t);
854 /* s/w "RAID" management */
856 boost::optional<framecnt_t> available_capture_duration();
860 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
861 void remove_bundle (boost::shared_ptr<Bundle>);
862 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
864 PBD::Signal0<void> BundleAddedOrRemoved;
868 /* History (for editors, mixers, UIs etc.) */
870 /** Undo some transactions.
871 * @param n Number of transactions to undo.
873 void undo (uint32_t n) {
877 void redo (uint32_t n) {
881 UndoHistory& history() { return _history; }
883 uint32_t undo_depth() const { return _history.undo_depth(); }
884 uint32_t redo_depth() const { return _history.redo_depth(); }
885 std::string next_undo() const { return _history.next_undo(); }
886 std::string next_redo() const { return _history.next_redo(); }
888 /** begin collecting undo information
890 * This call must always be followed by either
891 * begin_reversible_command() or commit_reversible_command()
893 * @param cmd_name human readable name for the undo operation
895 void begin_reversible_command (const std::string& cmd_name);
896 void begin_reversible_command (GQuark);
897 /** abort an open undo command
898 * This must only be called after begin_reversible_command ()
900 void abort_reversible_command ();
901 /** finalize an undo command and commit pending transactions
903 * This must only be called after begin_reversible_command ()
904 * @param cmd (additional) command to add
906 void commit_reversible_command (Command* cmd = 0);
908 void add_command (Command *const cmd);
910 /** create an StatefulDiffCommand from the given object and add it to the stack.
912 * This function must only be called after begin_reversible_command.
913 * Failing to do so may lead to a crash.
915 * @param sfd the object to diff
916 * @returns the allocated StatefulDiffCommand (already added via add_command)
918 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
920 /** @return The list of operations that are currently in progress */
921 std::list<GQuark> const & current_operations () {
922 return _current_trans_quarks;
925 bool operation_in_progress (GQuark) const;
927 void add_commands (std::vector<Command*> const & cmds);
929 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
931 // these commands are implemented in libs/ardour/session_command.cc
932 Command* memento_command_factory(XMLNode* n);
933 Command* stateful_diff_command_factory (XMLNode *);
934 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
938 boost::shared_ptr<IO> click_io() { return _click_io; }
939 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
941 /* disk, buffer loads */
943 uint32_t playback_load ();
944 uint32_t capture_load ();
948 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
949 void request_cancel_play_range ();
950 bool get_play_range () const { return _play_range; }
952 void maybe_update_session_range (framepos_t, framepos_t);
954 /* temporary hacks to allow selection to be pushed from GUI into backend.
955 Whenever we move the selection object into libardour, these will go away.
957 void set_range_selection (framepos_t start, framepos_t end);
958 void set_object_selection (framepos_t start, framepos_t end);
959 void clear_range_selection ();
960 void clear_object_selection ();
962 /* buffers for gain and pan */
964 gain_t* gain_automation_buffer () const;
965 gain_t* trim_automation_buffer () const;
966 gain_t* send_gain_automation_buffer () const;
967 pan_t** pan_automation_buffer () const;
969 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
973 static int vst_current_loading_id;
974 static const char* vst_can_do_strings[];
975 static const int vst_can_do_string_count;
977 static intptr_t vst_callback (
986 static PBD::Signal0<void> SendFeedback;
990 boost::shared_ptr<Speakers> get_speakers ();
994 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
996 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
997 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
999 void add_controllable (boost::shared_ptr<PBD::Controllable>);
1000 void remove_controllable (PBD::Controllable*);
1002 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
1004 SessionConfiguration config;
1006 bool exporting () const {
1010 bool bounce_processing() const {
1011 return _bounce_processing_active;
1014 /* this is a private enum, but setup_enum_writer() needs it,
1015 and i can't find a way to give that function
1016 friend access. sigh.
1019 enum PostTransportWork {
1020 PostTransportStop = 0x1,
1021 PostTransportDuration = 0x2,
1022 PostTransportLocate = 0x4,
1023 PostTransportRoll = 0x8,
1024 PostTransportAbort = 0x10,
1025 PostTransportOverWrite = 0x20,
1026 PostTransportSpeed = 0x40,
1027 PostTransportAudition = 0x80,
1028 PostTransportReverse = 0x100,
1029 PostTransportInputChange = 0x200,
1030 PostTransportCurveRealloc = 0x400,
1031 PostTransportClearSubstate = 0x800,
1032 PostTransportAdjustPlaybackBuffering = 0x1000,
1033 PostTransportAdjustCaptureBuffering = 0x2000
1042 SlaveState slave_state() const { return _slave_state; }
1043 Slave* slave() const { return _slave; }
1045 boost::shared_ptr<SessionPlaylists> playlists;
1047 void send_mmc_locate (framepos_t);
1048 void queue_full_time_code () { _send_timecode_update = true; }
1049 void queue_song_position_pointer () { /* currently does nothing */ }
1051 bool step_editing() const { return (_step_editors > 0); }
1053 void request_suspend_timecode_transmission ();
1054 void request_resume_timecode_transmission ();
1055 bool timecode_transmission_suspended () const;
1057 std::vector<std::string> source_search_path(DataType) const;
1058 void ensure_search_path_includes (const std::string& path, DataType type);
1059 void remove_dir_from_search_path (const std::string& path, DataType type);
1061 std::list<std::string> unknown_processors () const;
1063 /** Emitted when a feedback cycle has been detected within Ardour's signal
1064 processing path. Until it is fixed (by the user) some (unspecified)
1065 routes will not be run.
1067 static PBD::Signal0<void> FeedbackDetected;
1069 /** Emitted when a graph sort has successfully completed, which means
1070 that it has no feedback cycles.
1072 static PBD::Signal0<void> SuccessfulGraphSort;
1074 /* handlers can return an integer value:
1075 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1076 to modify the search path and we should try to find it again.
1077 1: quit entire session load
1078 2: as 0, but don't ask about other missing files
1079 3: don't ask about other missing files, and just mark this one missing
1080 -1: just mark this one missing
1081 any other value: as -1
1083 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1085 /** Emitted when the session wants Ardour to quit */
1086 static PBD::Signal0<void> Quit;
1088 /** Emitted when Ardour is asked to load a session in an older session
1089 * format, and makes a backup copy.
1091 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1093 SceneChanger* scene_changer() const { return _scene_changer; }
1095 /* asynchronous MIDI control ports */
1097 boost::shared_ptr<Port> midi_input_port () const;
1098 boost::shared_ptr<Port> midi_output_port () const;
1099 boost::shared_ptr<Port> mmc_output_port () const;
1100 boost::shared_ptr<Port> mmc_input_port () const;
1101 boost::shared_ptr<Port> scene_input_port () const;
1102 boost::shared_ptr<Port> scene_output_port () const;
1104 /* synchronous MIDI ports used for synchronization */
1106 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1107 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1108 boost::shared_ptr<MidiPort> mtc_output_port () const;
1109 boost::shared_ptr<MidiPort> mtc_input_port () const;
1110 boost::shared_ptr<Port> ltc_input_port() const;
1111 boost::shared_ptr<Port> ltc_output_port() const;
1113 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1114 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1116 MIDI::MachineControl& mmc() { return *_mmc; }
1118 void reconnect_midi_scene_ports (bool);
1119 void reconnect_mtc_ports ();
1120 void reconnect_mmc_ports (bool);
1122 void reconnect_ltc_input ();
1123 void reconnect_ltc_output ();
1126 friend class AudioEngine;
1127 void set_block_size (pframes_t nframes);
1128 void set_frame_rate (framecnt_t nframes);
1129 #ifdef USE_TRACKS_CODE_FEATURES
1130 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1135 void schedule_curve_reallocation ();
1136 void update_latency_compensation (bool force = false);
1139 int create (const std::string& mix_template, BusProfile*);
1142 static guint _name_id_counter;
1143 static void init_name_id_counter (guint n);
1144 static unsigned int name_id_counter ();
1147 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
1148 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
1149 StopPendingCapture = 0x4,
1150 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
1151 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
1152 PendingLocate = 0x20,
1155 /* stuff used in process() should be close together to
1159 typedef void (Session::*process_function_type)(pframes_t);
1161 AudioEngine& _engine;
1162 mutable gint processing_prohibited;
1163 process_function_type process_function;
1164 process_function_type last_process_function;
1165 bool _bounce_processing_active;
1166 bool waiting_for_sync_offset;
1167 framecnt_t _base_frame_rate; // sample-rate of the session at creation time, "native" SR
1168 framecnt_t _nominal_frame_rate; // overridden by audioengine setting
1169 framecnt_t _current_frame_rate; // this includes video pullup offset
1170 int transport_sub_state;
1171 mutable gint _record_status;
1172 framepos_t _transport_frame;
1173 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1177 // varispeed playback
1178 double _transport_speed;
1179 double _default_transport_speed;
1180 double _last_transport_speed;
1181 double _signalled_varispeed;
1182 double _target_transport_speed;
1183 CubicInterpolation interpolation;
1185 bool auto_play_legal;
1186 framepos_t _last_slave_transport_frame;
1187 framecnt_t maximum_output_latency;
1188 framepos_t _requested_return_frame;
1189 pframes_t current_block_size;
1190 framecnt_t _worst_output_latency;
1191 framecnt_t _worst_input_latency;
1192 framecnt_t _worst_track_latency;
1193 bool _have_captured;
1194 bool _non_soloed_outs_muted;
1196 uint32_t _listen_cnt;
1197 uint32_t _solo_isolated_cnt;
1200 bool _under_nsm_control;
1201 unsigned int _xrun_count;
1203 void mtc_status_changed (bool);
1204 PBD::ScopedConnection mtc_status_connection;
1205 void ltc_status_changed (bool);
1206 PBD::ScopedConnection ltc_status_connection;
1208 void initialize_latencies ();
1209 void set_worst_io_latencies ();
1210 void set_worst_playback_latency ();
1211 void set_worst_capture_latency ();
1212 void set_worst_io_latencies_x (IOChange, void *) {
1213 set_worst_io_latencies ();
1215 void post_capture_latency ();
1216 void post_playback_latency ();
1218 void update_latency_compensation_proxy (void* ignored);
1220 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1222 void process_scrub (pframes_t);
1223 void process_without_events (pframes_t);
1224 void process_with_events (pframes_t);
1225 void process_audition (pframes_t);
1226 int process_export (pframes_t);
1227 int process_export_fw (pframes_t);
1229 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1230 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1231 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1233 static const framecnt_t bounce_chunk_size;
1235 /* slave tracking */
1237 static const int delta_accumulator_size = 25;
1238 int delta_accumulator_cnt;
1239 int32_t delta_accumulator[delta_accumulator_size];
1240 int32_t average_slave_delta;
1242 bool have_first_delta_accumulator;
1244 SlaveState _slave_state;
1247 framepos_t slave_wait_end;
1249 void reset_slave_state ();
1250 bool follow_slave (pframes_t);
1251 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1252 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1253 void follow_slave_silently (pframes_t nframes, float slave_speed);
1255 void switch_to_sync_source (SyncSource); /* !RT context */
1256 void drop_sync_source (); /* !RT context */
1257 void use_sync_source (Slave*); /* RT context */
1259 bool post_export_sync;
1260 framepos_t post_export_position;
1263 bool _export_rolling;
1264 framepos_t _export_preroll;
1266 boost::shared_ptr<ExportHandler> export_handler;
1267 boost::shared_ptr<ExportStatus> export_status;
1270 int stop_audio_export ();
1271 void finalize_audio_export ();
1272 void finalize_export_internal (bool stop_freewheel);
1273 bool _pre_export_mmc_enabled;
1275 PBD::ScopedConnection export_freewheel_connection;
1277 void get_track_statistics ();
1278 int process_routes (pframes_t, bool& need_butler);
1279 int silent_process_routes (pframes_t, bool& need_butler);
1281 /** @return 1 if there is a pending declick fade-in,
1282 -1 if there is a pending declick fade-out,
1283 0 if there is no pending declick.
1285 int get_transport_declick_required () {
1286 if (transport_sub_state & PendingDeclickIn) {
1287 transport_sub_state &= ~PendingDeclickIn;
1289 } else if (transport_sub_state & PendingDeclickOut) {
1290 /* XXX: not entirely sure why we don't clear this */
1292 } else if (transport_sub_state & PendingLoopDeclickOut) {
1293 /* Return the declick out first ... */
1294 transport_sub_state &= ~PendingLoopDeclickOut;
1296 } else if (transport_sub_state & PendingLoopDeclickIn) {
1297 /* ... then the declick in on the next call */
1298 transport_sub_state &= ~PendingLoopDeclickIn;
1305 bool maybe_stop (framepos_t limit);
1306 bool maybe_sync_start (pframes_t &);
1308 void check_declick_out ();
1314 /** Number of process frames since the last MTC output (when sending MTC); used to
1315 * know when to send full MTC messages every so often.
1317 pframes_t _pframes_since_last_mtc;
1318 bool session_midi_feedback;
1321 framepos_t last_loopend;
1323 boost::scoped_ptr<SessionDirectory> _session_dir;
1326 void graph_reordered ();
1328 /** current snapshot name, without the .ardour suffix */
1329 void set_snapshot_name (const std::string &);
1330 void save_snapshot_name (const std::string &);
1331 std::string _current_snapshot_name;
1333 XMLTree* state_tree;
1334 bool state_was_pending;
1335 StateOfTheState _state_of_the_state;
1337 friend class StateProtector;
1338 gint _suspend_save; /* atomic */
1339 volatile bool _save_queued;
1340 Glib::Threads::Mutex save_state_lock;
1341 Glib::Threads::Mutex peak_cleanup_lock;
1343 int load_options (const XMLNode&);
1344 int load_state (std::string snapshot_name);
1346 framepos_t _last_roll_location;
1347 /** the session frame time at which we last rolled, located, or changed transport direction */
1348 framepos_t _last_roll_or_reversal_location;
1349 framepos_t _last_record_location;
1351 bool pending_locate_roll;
1352 framepos_t pending_locate_frame;
1353 bool pending_locate_flush;
1355 bool pending_auto_loop;
1357 PBD::ReallocPool _mempool;
1359 Glib::Threads::Mutex lua_lock;
1360 luabridge::LuaRef * _lua_run;
1361 luabridge::LuaRef * _lua_add;
1362 luabridge::LuaRef * _lua_del;
1363 luabridge::LuaRef * _lua_list;
1364 luabridge::LuaRef * _lua_load;
1365 luabridge::LuaRef * _lua_save;
1366 luabridge::LuaRef * _lua_cleanup;
1367 uint32_t _n_lua_scripts;
1370 void try_run_lua (pframes_t);
1374 static const PostTransportWork ProcessCannotProceedMask =
1376 PostTransportInputChange|
1378 PostTransportReverse|
1379 PostTransportCurveRealloc|
1380 PostTransportAudition|
1381 PostTransportLocate|
1383 PostTransportClearSubstate);
1385 gint _post_transport_work; /* accessed only atomic ops */
1386 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1387 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1388 void add_post_transport_work (PostTransportWork ptw);
1390 void schedule_playback_buffering_adjustment ();
1391 void schedule_capture_buffering_adjustment ();
1393 uint32_t cumulative_rf_motion;
1396 void set_rf_speed (float speed);
1397 void reset_rf_scale (framecnt_t frames_moved);
1399 Locations* _locations;
1400 void location_added (Location*);
1401 void location_removed (Location*);
1402 void locations_changed ();
1403 void _locations_changed (const Locations::LocationList&);
1405 void update_skips (Location*, bool consolidate);
1406 void update_marks (Location* loc);
1407 void consolidate_skips (Location*);
1408 void sync_locations_to_skips ();
1409 void _sync_locations_to_skips ();
1411 PBD::ScopedConnectionList skip_update_connections;
1412 bool _ignore_skips_updates;
1414 PBD::ScopedConnectionList punch_connections;
1415 void auto_punch_start_changed (Location *);
1416 void auto_punch_end_changed (Location *);
1417 void auto_punch_changed (Location *);
1419 PBD::ScopedConnectionList loop_connections;
1420 void auto_loop_changed (Location *);
1421 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1423 int ensure_engine (uint32_t desired_sample_rate, bool);
1424 void pre_engine_init (std::string path);
1425 int post_engine_init ();
1426 int immediately_post_engine ();
1427 void remove_empty_sounds ();
1429 void session_loaded ();
1431 void setup_midi_control ();
1432 int midi_read (MIDI::Port *);
1434 void enable_record ();
1436 void increment_transport_position (framecnt_t val) {
1437 if (max_framepos - val < _transport_frame) {
1438 _transport_frame = max_framepos;
1440 _transport_frame += val;
1444 void decrement_transport_position (framecnt_t val) {
1445 if (val < _transport_frame) {
1446 _transport_frame -= val;
1448 _transport_frame = 0;
1452 void post_transport_motion ();
1453 static void *session_loader_thread (void *arg);
1457 /* Signal Forwarding */
1458 void emit_route_signals ();
1459 void emit_thread_run ();
1460 static void *emit_thread (void *);
1461 void emit_thread_start ();
1462 void emit_thread_terminate ();
1464 pthread_t _rt_emit_thread;
1465 bool _rt_thread_active;
1467 pthread_mutex_t _rt_emit_mutex;
1468 pthread_cond_t _rt_emit_cond;
1469 bool _rt_emit_pending;
1471 /* Auto Connect Thread */
1472 static void *auto_connect_thread (void *);
1473 void auto_connect_thread_run ();
1474 void auto_connect_thread_start ();
1475 void auto_connect_thread_terminate ();
1477 pthread_t _auto_connect_thread;
1478 bool _ac_thread_active;
1479 pthread_mutex_t _auto_connect_mutex;
1480 pthread_cond_t _auto_connect_cond;
1482 struct AutoConnectRequest {
1484 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1485 const ChanCount& is,
1486 const ChanCount& os,
1487 const ChanCount& io,
1488 const ChanCount& oo)
1489 : route (boost::weak_ptr<Route> (r))
1490 , connect_inputs (ci)
1494 , output_offset (oo)
1497 boost::weak_ptr <Route> route;
1498 bool connect_inputs;
1499 ChanCount input_start;
1500 ChanCount output_start;
1501 ChanCount input_offset;
1502 ChanCount output_offset;
1505 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1506 Glib::Threads::Mutex _auto_connect_queue_lock;
1507 AutoConnectQueue _auto_connect_queue;
1509 void auto_connect (const AutoConnectRequest&);
1511 /* SessionEventManager interface */
1513 void process_event (SessionEvent*);
1514 void set_next_event ();
1515 void cleanup_event (SessionEvent*,int);
1517 /* MIDI Machine Control */
1520 void spp_continue ();
1523 void mmc_deferred_play (MIDI::MachineControl &);
1524 void mmc_stop (MIDI::MachineControl &);
1525 void mmc_step (MIDI::MachineControl &, int);
1526 void mmc_pause (MIDI::MachineControl &);
1527 void mmc_record_pause (MIDI::MachineControl &);
1528 void mmc_record_strobe (MIDI::MachineControl &);
1529 void mmc_record_exit (MIDI::MachineControl &);
1530 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1531 void mmc_fast_forward (MIDI::MachineControl &);
1532 void mmc_rewind (MIDI::MachineControl &);
1533 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1534 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1535 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1537 struct timeval last_mmc_step;
1540 typedef boost::function<bool()> MidiTimeoutCallback;
1541 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1543 MidiTimeoutList midi_timeouts;
1544 bool mmc_step_timeout ();
1545 void send_immediate_mmc (MIDI::MachineControlCommand);
1547 MIDI::byte mtc_msg[16];
1548 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1549 MIDI::byte midi_msg[16];
1550 double outbound_mtc_timecode_frame;
1551 Timecode::Time transmitting_timecode_time;
1552 int next_quarter_frame_to_send;
1554 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1555 framecnt_t _frames_per_hour;
1556 framecnt_t _timecode_frames_per_hour;
1558 /* cache the most-recently requested time conversions. This helps when we
1559 * have multiple clocks showing the same time (e.g. the transport frame) */
1560 bool last_timecode_valid;
1561 framepos_t last_timecode_when;
1562 Timecode::Time last_timecode;
1564 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1566 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1568 LTCEncoder* ltc_encoder;
1569 ltcsnd_sample_t* ltc_enc_buf;
1571 Timecode::TimecodeFormat ltc_enc_tcformat;
1572 int32_t ltc_buf_off;
1573 int32_t ltc_buf_len;
1576 int32_t ltc_enc_byte;
1577 framepos_t ltc_enc_pos;
1579 framepos_t ltc_enc_off;
1581 framepos_t ltc_prev_cycle;
1583 framepos_t ltc_timecode_offset;
1584 bool ltc_timecode_negative_offset;
1586 LatencyRange ltc_out_latency;
1588 void ltc_tx_initialize();
1589 void ltc_tx_cleanup();
1590 void ltc_tx_reset();
1591 void ltc_tx_resync_latency();
1592 void ltc_tx_recalculate_position();
1593 void ltc_tx_parse_offset();
1594 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1596 void reset_record_status ();
1598 int no_roll (pframes_t nframes);
1599 int fail_roll (pframes_t nframes);
1601 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1602 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1604 MidiControlUI* midi_control_ui;
1606 int start_midi_thread ();
1608 void set_play_loop (bool yn, double speed);
1609 void unset_play_loop ();
1610 void overwrite_some_buffers (Track *);
1611 void flush_all_inserts ();
1612 int micro_locate (framecnt_t distance);
1613 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1614 void start_locate (framepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1615 void force_locate (framepos_t frame, bool with_roll = false);
1616 void set_track_speed (Track *, double speed);
1617 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1618 void stop_transport (bool abort = false, bool clear_state = false);
1619 void start_transport ();
1620 void realtime_stop (bool abort, bool clear_state);
1621 void realtime_locate ();
1622 void non_realtime_start_scrub ();
1623 void non_realtime_set_speed ();
1624 void non_realtime_locate ();
1625 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1626 void non_realtime_overwrite (int entry_request_count, bool& finished);
1627 void post_transport ();
1628 void engine_halted ();
1629 void xrun_recovery ();
1630 void set_track_loop (bool);
1631 bool select_playhead_priority_target (framepos_t&);
1632 void follow_playhead_priority ();
1634 /* These are synchronous and so can only be called from within the process
1638 int send_full_time_code (framepos_t, pframes_t nframes);
1639 void send_song_position_pointer (framepos_t);
1641 TempoMap *_tempo_map;
1642 void tempo_map_changed (const PBD::PropertyChange&);
1643 void gui_tempo_map_changed ();
1645 /* edit/mix groups */
1647 int load_route_groups (const XMLNode&, int);
1649 std::list<RouteGroup *> _route_groups;
1650 RouteGroup* _all_route_group;
1654 boost::shared_ptr<Graph> _process_graph;
1656 SerializedRCUManager<RouteList> routes;
1658 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save);
1659 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect);
1660 bool _adding_routes_in_progress;
1661 bool _reconnecting_routes_in_progress;
1662 bool _route_deletion_in_progress;
1664 uint32_t destructive_index;
1666 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1667 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1669 void route_processors_changed (RouteProcessorChange);
1671 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1672 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1673 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1674 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1676 /* track numbering */
1678 void reassign_track_numbers ();
1679 uint32_t _track_number_decimals;
1683 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1684 void route_mute_changed ();
1685 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1686 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1687 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1689 void listen_position_changed ();
1690 void solo_control_mode_changed ();
1692 /* REGION MANAGEMENT */
1694 mutable Glib::Threads::Mutex region_lock;
1696 int load_regions (const XMLNode& node);
1697 int load_compounds (const XMLNode& node);
1699 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1700 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1701 void route_group_property_changed (RouteGroup *);
1705 mutable Glib::Threads::Mutex source_lock;
1708 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1711 void reset_write_sources (bool mark_write_complete, bool force = false);
1716 int load_sources (const XMLNode& node);
1717 XMLNode& get_sources_as_xml ();
1719 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1723 void remove_playlist (boost::weak_ptr<Playlist>);
1724 void track_playlist_changed (boost::weak_ptr<Track>);
1725 void playlist_region_added (boost::weak_ptr<Region>);
1726 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1727 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1729 /* CURVES and AUTOMATION LISTS */
1730 std::map<PBD::ID, AutomationList*> automation_lists;
1732 /* DEFAULT FADE CURVES */
1734 float default_fade_steepness;
1735 float default_fade_msecs;
1739 boost::shared_ptr<Auditioner> auditioner;
1740 void set_audition (boost::shared_ptr<Region>);
1741 void non_realtime_set_audition ();
1742 boost::shared_ptr<Region> pending_audition_region;
1748 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1750 /* INSERT AND SEND MANAGEMENT */
1752 boost::dynamic_bitset<uint32_t> send_bitset;
1753 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1754 boost::dynamic_bitset<uint32_t> return_bitset;
1755 boost::dynamic_bitset<uint32_t> insert_bitset;
1759 struct space_and_path {
1760 uint32_t blocks; ///< 4kB blocks
1761 bool blocks_unknown; ///< true if blocks is unknown
1766 , blocks_unknown (true)
1770 struct space_and_path_ascending_cmp {
1771 bool operator() (space_and_path a, space_and_path b) {
1772 if (a.blocks_unknown != b.blocks_unknown) {
1773 return !a.blocks_unknown;
1775 return a.blocks > b.blocks;
1779 void setup_raid_path (std::string path);
1781 std::vector<space_and_path> session_dirs;
1782 std::vector<space_and_path>::iterator last_rr_session_dir;
1783 uint32_t _total_free_4k_blocks;
1784 /** If this is true, _total_free_4k_blocks is not definite,
1785 as one or more of the session directories' filesystems
1786 could not report free space.
1788 bool _total_free_4k_blocks_uncertain;
1789 Glib::Threads::Mutex space_lock;
1791 bool no_questions_about_missing_files;
1793 std::string get_best_session_directory_for_new_audio ();
1795 mutable gint _playback_load;
1796 mutable gint _capture_load;
1800 SerializedRCUManager<BundleList> _bundles;
1801 XMLNode* _bundle_xml_node;
1802 int load_bundles (XMLNode const &);
1804 UndoHistory _history;
1805 /** current undo transaction, or 0 */
1806 UndoTransaction* _current_trans;
1807 /** GQuarks to describe the reversible commands that are currently in progress.
1808 * These may be nested, in which case more recently-started commands are toward
1809 * the front of the list.
1811 std::list<GQuark> _current_trans_quarks;
1813 int backend_sync_callback (TransportState, framepos_t);
1815 void process_rtop (SessionEvent*);
1817 void update_latency (bool playback);
1819 XMLNode& state(bool);
1822 typedef std::list<Click*> Clicks;
1825 boost::shared_ptr<IO> _click_io;
1826 boost::shared_ptr<Amp> _click_gain;
1828 Sample* click_emphasis_data;
1829 framecnt_t click_length;
1830 framecnt_t click_emphasis_length;
1831 mutable Glib::Threads::RWLock click_lock;
1833 static const Sample default_click[];
1834 static const framecnt_t default_click_length;
1835 static const Sample default_click_emphasis[];
1836 static const framecnt_t default_click_emphasis_length;
1839 framepos_t _clicks_cleared;
1840 void setup_click_sounds (int which);
1841 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1842 void clear_clicks ();
1843 void click (framepos_t start, framecnt_t nframes);
1845 std::vector<Route*> master_outs;
1847 /* range playback */
1849 std::list<AudioRange> current_audio_range;
1851 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1852 void unset_play_range ();
1854 /* temporary hacks to allow selection to be pushed from GUI into backend
1855 Whenever we move the selection object into libardour, these will go away.
1857 Evoral::Range<framepos_t> _range_selection;
1858 Evoral::Range<framepos_t> _object_selection;
1863 boost::shared_ptr<Route> _master_out;
1864 boost::shared_ptr<Route> _monitor_out;
1866 void auto_connect_master_bus ();
1868 /* Windows VST support */
1870 long _windows_vst_callback (
1879 int find_all_sources (std::string path, std::set<std::string>& result);
1880 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1882 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1883 Glib::Threads::Mutex controllables_lock;
1884 Controllables controllables;
1886 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1888 void reset_native_file_format();
1889 bool first_file_data_format_reset;
1890 bool first_file_header_format_reset;
1892 void config_changed (std::string, bool);
1894 XMLNode& get_control_protocol_state ();
1896 void set_history_depth (uint32_t depth);
1898 static bool _disable_all_loaded_plugins;
1899 static bool _bypass_all_loaded_plugins;
1901 mutable bool have_looped; ///< Used in ::audible_frame(*)
1903 void update_route_record_state ();
1904 gint _have_rec_enabled_track;
1905 gint _have_rec_disabled_track;
1907 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1909 /* realtime "apply to set of routes" operations */
1910 template<typename T> SessionEvent*
1911 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1912 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1913 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1914 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1915 ev->rt_return = after;
1916 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1921 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1922 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1923 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition /* ignored*/ );
1924 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1925 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1926 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1927 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1928 void rt_set_record_safe (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1929 void rt_set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, PBD::Controllable::GroupControlDisposition group_override);
1931 /** temporary list of Diskstreams used only during load of 2.X sessions */
1932 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1934 void set_session_range_location (framepos_t, framepos_t);
1936 void setup_midi_machine_control ();
1938 void step_edit_status_change (bool);
1939 uint32_t _step_editors;
1941 /** true if timecode transmission by the transport is suspended, otherwise false */
1942 mutable gint _suspend_timecode_transmission;
1944 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1946 void start_time_changed (framepos_t);
1947 void end_time_changed (framepos_t);
1949 void set_track_monitor_input_status (bool);
1950 framepos_t compute_stop_limit () const;
1952 boost::shared_ptr<Speakers> _speakers;
1953 void load_nested_sources (const XMLNode& node);
1955 /** The directed graph of routes that is currently being used for audio processing
1956 and solo/mute computations.
1958 GraphEdges _current_route_graph;
1960 uint32_t next_control_id () const;
1961 int32_t _order_hint;
1962 bool ignore_route_processor_changes;
1964 MidiClockTicker* midi_clock;
1966 boost::shared_ptr<IO> _ltc_input;
1967 boost::shared_ptr<IO> _ltc_output;
1969 /* Scene Changing */
1970 SceneChanger* _scene_changer;
1972 /* persistent, non-track related MIDI ports */
1973 MidiPortManager* _midi_ports;
1974 MIDI::MachineControl* _mmc;
1977 void setup_click ();
1978 void setup_click_state (const XMLNode*);
1979 void setup_bundles ();
1981 void save_as_bring_callback (uint32_t, uint32_t, std::string);
1983 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
1984 static const uint32_t session_end_shift;
1986 std::string _template_state_dir;
1990 } // namespace ARDOUR
1992 #endif /* __ardour_session_h__ */