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"
33 #include <boost/dynamic_bitset.hpp>
34 #include <boost/scoped_ptr.hpp>
35 #include <boost/weak_ptr.hpp>
36 #include <boost/utility.hpp>
38 #include <glibmm/threads.h>
42 #include "pbd/error.h"
43 #include "pbd/event_loop.h"
45 #include "pbd/statefuldestructible.h"
46 #include "pbd/signals.h"
49 #include "evoral/types.hpp"
51 #include "midi++/types.h"
52 #include "midi++/mmc.h"
54 #include "timecode/time.h"
56 #include "ardour/ardour.h"
57 #include "ardour/chan_count.h"
58 #include "ardour/delivery.h"
59 #include "ardour/interthread_info.h"
60 #include "ardour/location.h"
61 #include "ardour/monitor_processor.h"
62 #include "ardour/rc_configuration.h"
63 #include "ardour/session_configuration.h"
64 #include "ardour/session_event.h"
65 #include "ardour/interpolation.h"
66 #include "ardour/route.h"
67 #include "ardour/route_graph.h"
73 typedef struct _AEffect AEffect;
83 class ControllableDescriptor;
94 class AudioFileSource;
112 class MidiClockTicker;
114 class MidiPortManager;
133 class SessionDirectory;
134 class SessionMetadata;
135 class SessionPlaylists;
141 class WindowsVSTPlugin;
143 extern void setup_enum_writer ();
145 class LIBARDOUR_API SessionException: public std::exception {
147 explicit SessionException(const std::string msg) : _message(msg) {}
148 virtual ~SessionException() throw() {}
150 virtual const char* what() const throw() { return _message.c_str(); }
153 std::string _message;
156 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
165 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
166 the bus profile can be null if no master out bus is required.
169 Session (AudioEngine&,
170 const std::string& fullpath,
171 const std::string& snapshot_name,
172 BusProfile* bus_profile = 0,
173 std::string mix_template = "");
177 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format);
178 static std::string get_snapshot_from_instant (const std::string& session_dir);
180 std::string path() const { return _path; }
181 std::string name() const { return _name; }
182 std::string snap_name() const { return _current_snapshot_name; }
183 std::string raid_path () const;
184 bool path_is_within_session (const std::string&);
186 bool writable() const { return _writable; }
189 bool dirty() const { return _state_of_the_state & Dirty; }
190 void set_deletion_in_progress ();
191 void clear_deletion_in_progress ();
192 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
193 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
194 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
195 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
197 PBD::Signal0<void> DirtyChanged;
199 PBD::Signal1<void, bool> RouteAddedOrRemoved;
201 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
203 static PBD::Signal1<void,std::string> Dialog;
205 PBD::Signal0<void> BatchUpdateStart;
206 PBD::Signal0<void> BatchUpdateEnd;
208 int ensure_subdirs ();
210 std::string automation_dir () const; ///< Automation data
211 std::string analysis_dir () const; ///< Analysis data
212 std::string plugins_dir () const; ///< Plugin state
213 std::string externals_dir () const; ///< Links to external files
215 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
217 bool audio_source_name_is_unique (const std::string& name);
218 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);
219 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
220 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
221 std::string new_midi_source_path (const std::string&);
222 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path, const std::string& name, PlaylistDisposition pd = NewPlaylist);
223 RouteList new_route_from_template (uint32_t how_many, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
224 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path, uint32_t channels);
226 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
228 void process (pframes_t nframes);
230 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
231 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true );
232 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
233 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
235 bool have_rec_enabled_track () const;
236 bool have_rec_disabled_track () const;
238 bool have_captured() const { return _have_captured; }
240 void refill_all_track_buffers ();
241 Butler* butler() { return _butler; }
242 void butler_transport_work ();
244 void refresh_disk_space ();
246 int load_diskstreams_2X (XMLNode const &, int);
248 int load_routes (const XMLNode&, int);
249 boost::shared_ptr<RouteList> get_routes() const {
250 return routes.reader ();
253 boost::shared_ptr<RouteList> get_tracks() const;
254 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
255 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
257 uint32_t nroutes() const { return routes.reader()->size(); }
258 uint32_t ntracks () const;
259 uint32_t nbusses () const;
261 boost::shared_ptr<BundleList> bundles () {
262 return _bundles.reader ();
265 struct LIBARDOUR_API RoutePublicOrderSorter {
266 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
269 void set_order_hint (int32_t order_hint) {_order_hint = order_hint;};
270 void notify_remote_id_change ();
271 void sync_order_keys ();
273 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
274 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
275 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
277 static char session_name_is_legal (const std::string&);
278 bool io_name_is_legal (const std::string&);
279 boost::shared_ptr<Route> route_by_name (std::string);
280 boost::shared_ptr<Route> route_by_id (PBD::ID);
281 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
282 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt);
283 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID);
284 void routes_using_input_from (const std::string& str, RouteList& rl);
286 bool route_name_unique (std::string) const;
287 bool route_name_internal (std::string) const;
289 uint32_t track_number_decimals () const {
290 return _track_number_decimals;
293 bool get_record_enabled() const {
294 return (record_status () >= Enabled);
297 RecordState record_status() const {
298 return (RecordState) g_atomic_int_get (&_record_status);
301 bool actively_recording () const {
302 return record_status() == Recording;
305 bool record_enabling_legal () const;
306 void maybe_enable_record ();
307 void disable_record (bool rt_context, bool force = false);
308 void step_back_from_record ();
310 void set_all_tracks_record_enabled(bool);
312 void maybe_write_autosave ();
314 /* Emitted when all i/o connections are complete */
316 PBD::Signal0<void> IOConnectionsComplete;
318 /* Timecode status signals */
319 PBD::Signal1<void, bool> MTCSyncStateChanged;
320 PBD::Signal1<void, bool> LTCSyncStateChanged;
322 /* Record status signals */
324 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
325 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
326 from the previous signal and session state.
328 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
330 /* Emited when session is loaded */
331 PBD::Signal0<void> SessionLoaded;
333 /* Transport mechanism signals */
335 /** Emitted on the following changes in transport state:
336 * - stop (from the butler thread)
337 * - change in whether or not we are looping (from the process thread)
338 * - change in the play range (from the process thread)
339 * - start (from the process thread)
342 PBD::Signal0<void> TransportStateChange;
344 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
345 PBD::Signal1<void,framepos_t> Xrun;
346 PBD::Signal0<void> TransportLooped;
348 /** emitted when a locate has occurred */
349 PBD::Signal0<void> Located;
351 PBD::Signal1<void,RouteList&> RouteAdded;
352 /** Emitted when a property of one of our route groups changes.
353 * The parameter is the RouteGroup that has changed.
355 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
356 /** Emitted when a route is added to one of our route groups.
357 * First parameter is the RouteGroup, second is the route.
359 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
360 /** Emitted when a route is removed from one of our route groups.
361 * First parameter is the RouteGroup, second is the route.
363 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
365 /* Step Editing status changed */
366 PBD::Signal1<void,bool> StepEditStatusChange;
368 /* Timecode state signals */
369 PBD::Signal0<void> MtcOrLtcInputPortChanged;
371 void queue_event (SessionEvent*);
373 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
374 void request_bounded_roll (framepos_t start, framepos_t end);
375 void request_stop (bool abort = false, bool clear_state = false);
376 void request_locate (framepos_t frame, bool with_roll = false);
378 void request_play_loop (bool yn, bool leave_rolling = false);
379 bool get_play_loop () const { return play_loop; }
381 framepos_t last_transport_start () const { return _last_roll_location; }
384 void use_rf_shuttle_speed ();
385 void allow_auto_play (bool yn);
386 void request_transport_speed (double speed, bool as_default = true);
387 void request_transport_speed_nonzero (double, bool as_default = true);
388 void request_overwrite_buffer (Track *);
389 void adjust_playback_buffering();
390 void adjust_capture_buffering();
391 void request_track_speed (Track *, double speed);
392 void request_input_change_handling ();
394 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
395 bool transport_locked () const;
399 framepos_t current_end_frame () const;
400 framepos_t current_start_frame () const;
401 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
402 framecnt_t frame_rate () const { return _current_frame_rate; }
403 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
404 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
405 framecnt_t frames_per_hour () const { return _frames_per_hour; }
407 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
408 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
410 MIDI::byte get_mtc_timecode_bits() const {
411 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
414 double timecode_frames_per_second() const;
415 bool timecode_drop_frames() const;
419 Locations *locations() { return _locations; }
421 PBD::Signal1<void,Location*> auto_loop_location_changed;
422 PBD::Signal1<void,Location*> auto_punch_location_changed;
423 PBD::Signal0<void> locations_modified;
425 void set_auto_punch_location (Location *);
426 void set_auto_loop_location (Location *);
427 void set_session_extents (framepos_t start, framepos_t end);
428 int location_name(std::string& result, std::string base = std::string(""));
430 pframes_t get_block_size() const { return current_block_size; }
431 framecnt_t worst_output_latency () const { return _worst_output_latency; }
432 framecnt_t worst_input_latency () const { return _worst_input_latency; }
433 framecnt_t worst_track_latency () const { return _worst_track_latency; }
434 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
437 std::string new_parent_folder; /* parent folder where new session folder will be created */
438 std::string new_name; /* name of newly saved session */
439 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
440 bool include_media; /* true if the newly saved session should contain references to media */
441 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
442 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
444 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
446 /* emitted as we make progress. 3 arguments passed to signal
449 * 1: percentage complete measured as a fraction (0-1.0) of
450 * total data copying done.
451 * 2: number of files copied so far
452 * 3: total number of files to copy
454 * Handler should return true for save-as to continue, or false
455 * to stop (and remove all evidence of partial save-as).
457 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
459 /* if save_as() returns non-zero, this string will indicate the reason why.
461 std::string failure_message;
464 int save_as (SaveAs&);
465 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
466 int restore_state (std::string snapshot_name);
467 int save_template (std::string template_name, bool replace_existing = false);
468 int save_history (std::string snapshot_name = "");
469 int restore_history (std::string snapshot_name);
470 void remove_state (std::string snapshot_name);
471 void rename_state (std::string old_name, std::string new_name);
472 void remove_pending_capture_state ();
473 int rename (const std::string&);
474 bool get_nsm_state () const { return _under_nsm_control; }
475 void set_nsm_state (bool state) { _under_nsm_control = state; }
476 bool save_default_options ();
478 PBD::Signal1<void,std::string> StateSaved;
479 PBD::Signal0<void> StateReady;
481 /* emitted when session needs to be saved due to some internal
482 * event or condition (i.e. not in response to a user request).
484 * Only one object should
485 * connect to this signal and take responsibility.
487 * Argument is the snapshot name to use when saving.
489 PBD::Signal1<void,std::string> SaveSessionRequested;
491 /* emitted during a session save to allow other entities to add state, via
492 * extra XML, to the session state
494 PBD::Signal0<void> SessionSaveUnderway;
496 std::vector<std::string> possible_states() const;
497 static std::vector<std::string> possible_states (std::string path);
499 XMLNode& get_state();
500 int set_state(const XMLNode& node, int version); // not idempotent
501 XMLNode& get_template();
503 /// The instant xml file is written to the session directory
504 void add_instant_xml (XMLNode&, bool write_to_config = true);
505 XMLNode* instant_xml (const std::string& str);
507 enum StateOfTheState {
512 InitialConnecting = 0x8,
518 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
520 class StateProtector {
522 StateProtector (Session* s) : _session (s) {
523 g_atomic_int_inc (&s->_suspend_save);
526 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
527 while (_session->_save_queued) {
528 _session->_save_queued = false;
529 _session->save_state ("");
537 void add_route_group (RouteGroup *);
538 void remove_route_group (RouteGroup&);
539 void reorder_route_groups (std::list<RouteGroup*>);
541 RouteGroup* route_group_by_name (std::string);
542 RouteGroup& all_route_group() const;
544 PBD::Signal1<void,RouteGroup*> route_group_added;
545 PBD::Signal0<void> route_group_removed;
546 PBD::Signal0<void> route_groups_reordered;
548 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
549 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
554 std::list<RouteGroup*> const & route_groups () const {
555 return _route_groups;
558 /* fundamental operations. duh. */
560 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
563 TrackMode mode = Normal,
564 RouteGroup* route_group = 0,
565 uint32_t how_many = 1,
566 std::string name_template = ""
569 RouteList new_audio_route (
570 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
573 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
574 const ChanCount& input, const ChanCount& output,
575 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
576 TrackMode mode = Normal,
577 RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
580 void remove_routes (boost::shared_ptr<RouteList>);
581 void remove_route (boost::shared_ptr<Route>);
583 void resort_routes ();
584 void resort_routes_using (boost::shared_ptr<RouteList>);
586 AudioEngine & engine() { return _engine; }
587 AudioEngine const & engine () const { return _engine; }
589 static std::string default_track_name_pattern (DataType);
593 framepos_t transport_frame () const {return _transport_frame; }
594 framepos_t record_location () const {return _last_record_location; }
595 framepos_t audible_frame () const;
596 framepos_t requested_return_frame() const { return _requested_return_frame; }
597 void set_requested_return_frame(framepos_t return_to);
611 void sync_time_vars();
613 void bbt_time (framepos_t when, Timecode::BBT_Time&);
614 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
615 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
616 void timecode_time (Timecode::Time &);
617 void timecode_time (framepos_t when, Timecode::Time&);
618 void timecode_time_subframes (framepos_t when, Timecode::Time&);
620 void timecode_duration (framecnt_t, Timecode::Time&) const;
621 void timecode_duration_string (char *, size_t len, framecnt_t) const;
623 framecnt_t convert_to_frames (AnyTime const & position);
624 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
626 static PBD::Signal1<void, framepos_t> StartTimeChanged;
627 static PBD::Signal1<void, framepos_t> EndTimeChanged;
629 void request_sync_source (Slave*);
630 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
631 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
632 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
634 double transport_speed() const { return _transport_speed; }
635 bool transport_stopped() const { return _transport_speed == 0.0f; }
636 bool transport_rolling() const { return _transport_speed != 0.0f; }
638 bool silent () { return _silent; }
640 TempoMap& tempo_map() { return *_tempo_map; }
641 const TempoMap& tempo_map() const { return *_tempo_map; }
643 unsigned int get_xrun_count () const {return _xrun_count; }
644 void reset_xrun_count () {_xrun_count = 0; }
648 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
650 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
651 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
652 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
654 /* source management */
656 void import_files (ImportStatus&);
657 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
658 std::string build_tmp_convert_name (std::string file);
660 boost::shared_ptr<ExportHandler> get_export_handler ();
661 boost::shared_ptr<ExportStatus> get_export_status ();
663 int start_audio_export (framepos_t position);
665 PBD::Signal1<int, framecnt_t> ProcessExport;
666 static PBD::Signal2<void,std::string, std::string> Exported;
668 void add_source (boost::shared_ptr<Source>);
669 void remove_source (boost::weak_ptr<Source>);
671 void cleanup_regions();
672 bool can_cleanup_peakfiles () const;
673 int cleanup_peakfiles ();
674 int cleanup_sources (CleanupReport&);
675 int cleanup_trash_sources (CleanupReport&);
677 int destroy_sources (std::list<boost::shared_ptr<Source> >);
679 int remove_last_capture ();
681 /** handlers should return 0 for "everything OK", and any other value for
682 * "cannot setup audioengine".
684 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
686 /** handlers should return -1 for "stop cleanup",
687 0 for "yes, delete this playlist",
688 1 for "no, don't delete this playlist".
690 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
692 /** handlers should return 0 for "ignore the rate mismatch",
693 !0 for "do not use this session"
695 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
697 /** handlers should return !0 for use pending state, 0 for ignore it.
699 static PBD::Signal0<int> AskAboutPendingState;
701 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
702 size_t, std::string const &, uint32_t, bool destructive);
704 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
705 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
707 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
708 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
709 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
710 uint32_t count_sources_by_origin (const std::string&);
712 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
714 /* Curves and AutomationLists (TODO when they go away) */
715 void add_automation_list(AutomationList*);
719 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
720 void audition_playlist ();
721 void audition_region (boost::shared_ptr<Region>);
722 void cancel_audition ();
723 bool is_auditioning () const;
725 PBD::Signal1<void,bool> AuditionActive;
727 /* flattening stuff */
729 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
730 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
731 boost::shared_ptr<Processor> endpoint,
732 bool include_endpoint, bool for_export, bool for_freeze);
733 int freeze_all (InterThreadInfo&);
735 /* session-wide solo/mute/rec-enable */
737 bool soloing() const { return _non_soloed_outs_muted; }
738 bool listening() const { return _listen_cnt > 0; }
739 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
741 static const SessionEvent::RTeventCallback rt_cleanup;
743 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
744 void clear_all_solo_state (boost::shared_ptr<RouteList>);
745 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
746 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
747 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
748 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
749 void set_record_safe (boost::shared_ptr<RouteList>, bool yn, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
750 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
751 void set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
752 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
754 PBD::Signal1<void,bool> SoloActive;
755 PBD::Signal0<void> SoloChanged;
756 PBD::Signal0<void> IsolatedChanged;
757 PBD::Signal0<void> MonitorChanged;
759 PBD::Signal0<void> session_routes_reconnected;
761 /* monitor/master out */
763 void add_monitor_section ();
764 void reset_monitor_section ();
765 void remove_monitor_section ();
766 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
768 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
769 boost::shared_ptr<Route> master_out() const { return _master_out; }
771 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
772 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
773 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
774 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
775 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
776 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
777 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
779 static void set_disable_all_loaded_plugins (bool yn) {
780 _disable_all_loaded_plugins = yn;
782 static bool get_disable_all_loaded_plugins() {
783 return _disable_all_loaded_plugins;
785 static void set_bypass_all_loaded_plugins (bool yn) {
786 _bypass_all_loaded_plugins = yn;
788 static bool get_bypass_all_loaded_plugins() {
789 return _bypass_all_loaded_plugins;
792 uint32_t next_send_id();
793 uint32_t next_aux_send_id();
794 uint32_t next_return_id();
795 uint32_t next_insert_id();
796 void mark_send_id (uint32_t);
797 void mark_aux_send_id (uint32_t);
798 void mark_return_id (uint32_t);
799 void mark_insert_id (uint32_t);
800 void unmark_send_id (uint32_t);
801 void unmark_aux_send_id (uint32_t);
802 void unmark_return_id (uint32_t);
803 void unmark_insert_id (uint32_t);
805 /* s/w "RAID" management */
807 boost::optional<framecnt_t> available_capture_duration();
811 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
812 void remove_bundle (boost::shared_ptr<Bundle>);
813 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
815 PBD::Signal0<void> BundleAddedOrRemoved;
819 /* History (for editors, mixers, UIs etc.) */
821 /** Undo some transactions.
822 * @param n Number of transactions to undo.
824 void undo (uint32_t n) {
828 void redo (uint32_t n) {
832 UndoHistory& history() { return _history; }
834 uint32_t undo_depth() const { return _history.undo_depth(); }
835 uint32_t redo_depth() const { return _history.redo_depth(); }
836 std::string next_undo() const { return _history.next_undo(); }
837 std::string next_redo() const { return _history.next_redo(); }
839 void begin_reversible_command (const std::string& cmd_name);
840 void begin_reversible_command (GQuark);
841 void abort_reversible_command ();
842 void commit_reversible_command (Command* cmd = 0);
844 void add_command (Command *const cmd);
846 /** @return The list of operations that are currently in progress */
847 std::list<GQuark> const & current_operations () {
848 return _current_trans_quarks;
851 bool operation_in_progress (GQuark) const;
853 void add_commands (std::vector<Command*> const & cmds);
855 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
857 // these commands are implemented in libs/ardour/session_command.cc
858 Command* memento_command_factory(XMLNode* n);
859 Command* stateful_diff_command_factory (XMLNode *);
860 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
864 boost::shared_ptr<IO> click_io() { return _click_io; }
865 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
867 /* disk, buffer loads */
869 uint32_t playback_load ();
870 uint32_t capture_load ();
874 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
875 void request_cancel_play_range ();
876 bool get_play_range () const { return _play_range; }
878 void maybe_update_session_range (framepos_t, framepos_t);
880 /* temporary hacks to allow selection to be pushed from GUI into backend.
881 Whenever we move the selection object into libardour, these will go away.
883 void set_range_selection (framepos_t start, framepos_t end);
884 void set_object_selection (framepos_t start, framepos_t end);
885 void clear_range_selection ();
886 void clear_object_selection ();
888 /* buffers for gain and pan */
890 gain_t* gain_automation_buffer () const;
891 gain_t* trim_automation_buffer () const;
892 gain_t* send_gain_automation_buffer () const;
893 pan_t** pan_automation_buffer () const;
895 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
899 static int vst_current_loading_id;
900 static const char* vst_can_do_strings[];
901 static const int vst_can_do_string_count;
903 static intptr_t vst_callback (
912 static PBD::Signal0<void> SendFeedback;
916 boost::shared_ptr<Speakers> get_speakers ();
920 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
922 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
923 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
925 void add_controllable (boost::shared_ptr<PBD::Controllable>);
926 void remove_controllable (PBD::Controllable*);
928 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
930 SessionConfiguration config;
932 bool exporting () const {
936 bool bounce_processing() const {
937 return _bounce_processing_active;
940 /* this is a private enum, but setup_enum_writer() needs it,
941 and i can't find a way to give that function
945 enum PostTransportWork {
946 PostTransportStop = 0x1,
947 PostTransportDuration = 0x2,
948 PostTransportLocate = 0x4,
949 PostTransportRoll = 0x8,
950 PostTransportAbort = 0x10,
951 PostTransportOverWrite = 0x20,
952 PostTransportSpeed = 0x40,
953 PostTransportAudition = 0x80,
954 PostTransportReverse = 0x100,
955 PostTransportInputChange = 0x200,
956 PostTransportCurveRealloc = 0x400,
957 PostTransportClearSubstate = 0x800,
958 PostTransportAdjustPlaybackBuffering = 0x1000,
959 PostTransportAdjustCaptureBuffering = 0x2000
968 SlaveState slave_state() const { return _slave_state; }
969 Slave* slave() const { return _slave; }
971 boost::shared_ptr<SessionPlaylists> playlists;
973 void send_mmc_locate (framepos_t);
974 void queue_full_time_code () { _send_timecode_update = true; }
975 void queue_song_position_pointer () { /* currently does nothing */ }
977 bool step_editing() const { return (_step_editors > 0); }
979 void request_suspend_timecode_transmission ();
980 void request_resume_timecode_transmission ();
981 bool timecode_transmission_suspended () const;
983 std::vector<std::string> source_search_path(DataType) const;
984 void ensure_search_path_includes (const std::string& path, DataType type);
985 void remove_dir_from_search_path (const std::string& path, DataType type);
987 std::list<std::string> unknown_processors () const;
989 /** Emitted when a feedback cycle has been detected within Ardour's signal
990 processing path. Until it is fixed (by the user) some (unspecified)
991 routes will not be run.
993 static PBD::Signal0<void> FeedbackDetected;
995 /** Emitted when a graph sort has successfully completed, which means
996 that it has no feedback cycles.
998 static PBD::Signal0<void> SuccessfulGraphSort;
1000 /* handlers can return an integer value:
1001 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1002 to modify the search path and we should try to find it again.
1003 1: quit entire session load
1004 2: as 0, but don't ask about other missing files
1005 3: don't ask about other missing files, and just mark this one missing
1006 -1: just mark this one missing
1007 any other value: as -1
1009 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1011 /** Emitted when the session wants Ardour to quit */
1012 static PBD::Signal0<void> Quit;
1014 /** Emitted when Ardour is asked to load a session in an older session
1015 * format, and makes a backup copy.
1017 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1019 SceneChanger* scene_changer() const { return _scene_changer; }
1021 /* asynchronous MIDI control ports */
1023 boost::shared_ptr<Port> midi_input_port () const;
1024 boost::shared_ptr<Port> midi_output_port () const;
1025 boost::shared_ptr<Port> mmc_output_port () const;
1026 boost::shared_ptr<Port> mmc_input_port () const;
1027 boost::shared_ptr<Port> scene_input_port () const;
1028 boost::shared_ptr<Port> scene_output_port () const;
1030 /* synchronous MIDI ports used for synchronization */
1032 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1033 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1034 boost::shared_ptr<MidiPort> mtc_output_port () const;
1035 boost::shared_ptr<MidiPort> mtc_input_port () const;
1036 boost::shared_ptr<Port> ltc_input_port() const;
1037 boost::shared_ptr<Port> ltc_output_port() const;
1039 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1040 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1042 MIDI::MachineControl& mmc() { return *_mmc; }
1044 void reconnect_midi_scene_ports (bool);
1045 void reconnect_mtc_ports ();
1046 void reconnect_mmc_ports (bool);
1048 void reconnect_ltc_input ();
1049 void reconnect_ltc_output ();
1052 friend class AudioEngine;
1053 void set_block_size (pframes_t nframes);
1054 void set_frame_rate (framecnt_t nframes);
1055 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1059 void schedule_curve_reallocation ();
1060 void update_latency_compensation (bool force = false);
1063 int create (const std::string& mix_template, BusProfile*);
1067 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
1068 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
1069 StopPendingCapture = 0x4,
1070 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
1071 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
1072 PendingLocate = 0x20,
1075 /* stuff used in process() should be close together to
1079 typedef void (Session::*process_function_type)(pframes_t);
1081 AudioEngine& _engine;
1082 mutable gint processing_prohibited;
1083 process_function_type process_function;
1084 process_function_type last_process_function;
1085 bool _bounce_processing_active;
1086 bool waiting_for_sync_offset;
1087 framecnt_t _base_frame_rate;
1088 framecnt_t _current_frame_rate; //this includes video pullup offset
1089 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1090 int transport_sub_state;
1091 mutable gint _record_status;
1092 framepos_t _transport_frame;
1093 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1097 // varispeed playback
1098 double _transport_speed;
1099 double _default_transport_speed;
1100 double _last_transport_speed;
1101 double _signalled_varispeed;
1102 double _target_transport_speed;
1103 CubicInterpolation interpolation;
1105 bool auto_play_legal;
1106 framepos_t _last_slave_transport_frame;
1107 framecnt_t maximum_output_latency;
1108 framepos_t _requested_return_frame;
1109 pframes_t current_block_size;
1110 framecnt_t _worst_output_latency;
1111 framecnt_t _worst_input_latency;
1112 framecnt_t _worst_track_latency;
1113 bool _have_captured;
1114 bool _non_soloed_outs_muted;
1116 uint32_t _listen_cnt;
1117 uint32_t _solo_isolated_cnt;
1120 bool _under_nsm_control;
1121 unsigned int _xrun_count;
1123 void mtc_status_changed (bool);
1124 PBD::ScopedConnection mtc_status_connection;
1125 void ltc_status_changed (bool);
1126 PBD::ScopedConnection ltc_status_connection;
1128 void initialize_latencies ();
1129 void set_worst_io_latencies ();
1130 void set_worst_playback_latency ();
1131 void set_worst_capture_latency ();
1132 void set_worst_io_latencies_x (IOChange, void *) {
1133 set_worst_io_latencies ();
1135 void post_capture_latency ();
1136 void post_playback_latency ();
1138 void update_latency_compensation_proxy (void* ignored);
1140 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1142 void process_scrub (pframes_t);
1143 void process_without_events (pframes_t);
1144 void process_with_events (pframes_t);
1145 void process_audition (pframes_t);
1146 int process_export (pframes_t);
1147 int process_export_fw (pframes_t);
1149 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1150 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1151 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1153 static const framecnt_t bounce_chunk_size;
1155 /* slave tracking */
1157 static const int delta_accumulator_size = 25;
1158 int delta_accumulator_cnt;
1159 int32_t delta_accumulator[delta_accumulator_size];
1160 int32_t average_slave_delta;
1162 bool have_first_delta_accumulator;
1164 SlaveState _slave_state;
1167 framepos_t slave_wait_end;
1169 void reset_slave_state ();
1170 bool follow_slave (pframes_t);
1171 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1172 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1173 void follow_slave_silently (pframes_t nframes, float slave_speed);
1175 void switch_to_sync_source (SyncSource); /* !RT context */
1176 void drop_sync_source (); /* !RT context */
1177 void use_sync_source (Slave*); /* RT context */
1179 bool post_export_sync;
1180 framepos_t post_export_position;
1183 bool _export_started;
1184 bool _export_rolling;
1186 boost::shared_ptr<ExportHandler> export_handler;
1187 boost::shared_ptr<ExportStatus> export_status;
1190 int stop_audio_export ();
1191 void finalize_audio_export ();
1192 void finalize_export_internal (bool stop_freewheel);
1193 bool _pre_export_mmc_enabled;
1195 PBD::ScopedConnection export_freewheel_connection;
1197 void get_track_statistics ();
1198 int process_routes (pframes_t, bool& need_butler);
1199 int silent_process_routes (pframes_t, bool& need_butler);
1201 /** @return 1 if there is a pending declick fade-in,
1202 -1 if there is a pending declick fade-out,
1203 0 if there is no pending declick.
1205 int get_transport_declick_required () {
1206 if (transport_sub_state & PendingDeclickIn) {
1207 transport_sub_state &= ~PendingDeclickIn;
1209 } else if (transport_sub_state & PendingDeclickOut) {
1210 /* XXX: not entirely sure why we don't clear this */
1212 } else if (transport_sub_state & PendingLoopDeclickOut) {
1213 /* Return the declick out first ... */
1214 transport_sub_state &= ~PendingLoopDeclickOut;
1216 } else if (transport_sub_state & PendingLoopDeclickIn) {
1217 /* ... then the declick in on the next call */
1218 transport_sub_state &= ~PendingLoopDeclickIn;
1225 bool maybe_stop (framepos_t limit);
1226 bool maybe_sync_start (pframes_t &);
1228 void check_declick_out ();
1234 /** Number of process frames since the last MTC output (when sending MTC); used to
1235 * know when to send full MTC messages every so often.
1237 pframes_t _pframes_since_last_mtc;
1238 bool session_midi_feedback;
1241 framepos_t last_loopend;
1243 boost::scoped_ptr<SessionDirectory> _session_dir;
1246 void graph_reordered ();
1248 /** current snapshot name, without the .ardour suffix */
1249 void set_snapshot_name (const std::string &);
1250 void save_snapshot_name (const std::string &);
1251 std::string _current_snapshot_name;
1253 XMLTree* state_tree;
1254 bool state_was_pending;
1255 StateOfTheState _state_of_the_state;
1257 friend class StateProtector;
1258 gint _suspend_save; /* atomic */
1259 volatile bool _save_queued;
1260 Glib::Threads::Mutex save_state_lock;
1261 Glib::Threads::Mutex peak_cleanup_lock;
1263 int load_options (const XMLNode&);
1264 int load_state (std::string snapshot_name);
1266 framepos_t _last_roll_location;
1267 /** the session frame time at which we last rolled, located, or changed transport direction */
1268 framepos_t _last_roll_or_reversal_location;
1269 framepos_t _last_record_location;
1271 bool pending_locate_roll;
1272 framepos_t pending_locate_frame;
1273 bool pending_locate_flush;
1275 bool pending_auto_loop;
1279 static const PostTransportWork ProcessCannotProceedMask =
1281 PostTransportInputChange|
1283 PostTransportReverse|
1284 PostTransportCurveRealloc|
1285 PostTransportAudition|
1286 PostTransportLocate|
1288 PostTransportClearSubstate);
1290 gint _post_transport_work; /* accessed only atomic ops */
1291 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1292 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1293 void add_post_transport_work (PostTransportWork ptw);
1295 void schedule_playback_buffering_adjustment ();
1296 void schedule_capture_buffering_adjustment ();
1298 uint32_t cumulative_rf_motion;
1301 void set_rf_speed (float speed);
1302 void reset_rf_scale (framecnt_t frames_moved);
1304 Locations* _locations;
1305 void location_added (Location*);
1306 void location_removed (Location*);
1307 void locations_changed ();
1308 void _locations_changed (const Locations::LocationList&);
1310 void update_skips (Location*, bool consolidate);
1311 void update_marks (Location* loc);
1312 void consolidate_skips (Location*);
1313 void sync_locations_to_skips ();
1314 void _sync_locations_to_skips ();
1316 PBD::ScopedConnectionList skip_update_connections;
1317 bool _ignore_skips_updates;
1319 PBD::ScopedConnectionList punch_connections;
1320 void auto_punch_start_changed (Location *);
1321 void auto_punch_end_changed (Location *);
1322 void auto_punch_changed (Location *);
1324 PBD::ScopedConnectionList loop_connections;
1325 void auto_loop_changed (Location *);
1326 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1328 int ensure_engine (uint32_t desired_sample_rate);
1329 void pre_engine_init (std::string path);
1330 int post_engine_init ();
1331 int immediately_post_engine ();
1332 void remove_empty_sounds ();
1334 void session_loaded ();
1336 void setup_midi_control ();
1337 int midi_read (MIDI::Port *);
1339 void enable_record ();
1341 void increment_transport_position (framecnt_t val) {
1342 if (max_framepos - val < _transport_frame) {
1343 _transport_frame = max_framepos;
1345 _transport_frame += val;
1349 void decrement_transport_position (framecnt_t val) {
1350 if (val < _transport_frame) {
1351 _transport_frame -= val;
1353 _transport_frame = 0;
1357 void post_transport_motion ();
1358 static void *session_loader_thread (void *arg);
1362 /* Signal Forwarding */
1363 void emit_route_signals ();
1364 void emit_thread_run ();
1365 static void *emit_thread (void *);
1366 void emit_thread_start ();
1367 void emit_thread_terminate ();
1369 pthread_t _rt_emit_thread;
1370 bool _rt_thread_active;
1372 pthread_mutex_t _rt_emit_mutex;
1373 pthread_cond_t _rt_emit_cond;
1374 bool _rt_emit_pending;
1377 /* SessionEventManager interface */
1379 void process_event (SessionEvent*);
1380 void set_next_event ();
1381 void cleanup_event (SessionEvent*,int);
1383 /* MIDI Machine Control */
1386 void spp_continue ();
1389 void mmc_deferred_play (MIDI::MachineControl &);
1390 void mmc_stop (MIDI::MachineControl &);
1391 void mmc_step (MIDI::MachineControl &, int);
1392 void mmc_pause (MIDI::MachineControl &);
1393 void mmc_record_pause (MIDI::MachineControl &);
1394 void mmc_record_strobe (MIDI::MachineControl &);
1395 void mmc_record_exit (MIDI::MachineControl &);
1396 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1397 void mmc_fast_forward (MIDI::MachineControl &);
1398 void mmc_rewind (MIDI::MachineControl &);
1399 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1400 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1401 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1403 struct timeval last_mmc_step;
1406 typedef boost::function<bool()> MidiTimeoutCallback;
1407 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1409 MidiTimeoutList midi_timeouts;
1410 bool mmc_step_timeout ();
1411 void send_immediate_mmc (MIDI::MachineControlCommand);
1413 MIDI::byte mtc_msg[16];
1414 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1415 MIDI::byte midi_msg[16];
1416 double outbound_mtc_timecode_frame;
1417 Timecode::Time transmitting_timecode_time;
1418 int next_quarter_frame_to_send;
1420 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1421 framecnt_t _frames_per_hour;
1422 framecnt_t _timecode_frames_per_hour;
1424 /* cache the most-recently requested time conversions. This helps when we
1425 * have multiple clocks showing the same time (e.g. the transport frame) */
1426 bool last_timecode_valid;
1427 framepos_t last_timecode_when;
1428 Timecode::Time last_timecode;
1430 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1432 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1434 LTCEncoder* ltc_encoder;
1435 ltcsnd_sample_t* ltc_enc_buf;
1437 Timecode::TimecodeFormat ltc_enc_tcformat;
1438 int32_t ltc_buf_off;
1439 int32_t ltc_buf_len;
1442 int32_t ltc_enc_byte;
1443 framepos_t ltc_enc_pos;
1445 framepos_t ltc_enc_off;
1447 framepos_t ltc_prev_cycle;
1449 framepos_t ltc_timecode_offset;
1450 bool ltc_timecode_negative_offset;
1452 LatencyRange ltc_out_latency;
1454 void ltc_tx_initialize();
1455 void ltc_tx_cleanup();
1456 void ltc_tx_reset();
1457 void ltc_tx_resync_latency();
1458 void ltc_tx_recalculate_position();
1459 void ltc_tx_parse_offset();
1460 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1462 void reset_record_status ();
1464 int no_roll (pframes_t nframes);
1465 int fail_roll (pframes_t nframes);
1467 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1468 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1470 MidiControlUI* midi_control_ui;
1472 int start_midi_thread ();
1474 void set_play_loop (bool yn, double speed);
1475 void unset_play_loop ();
1476 void overwrite_some_buffers (Track *);
1477 void flush_all_inserts ();
1478 int micro_locate (framecnt_t distance);
1479 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1480 void start_locate (framepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1481 void force_locate (framepos_t frame, bool with_roll = false);
1482 void set_track_speed (Track *, double speed);
1483 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1484 void stop_transport (bool abort = false, bool clear_state = false);
1485 void start_transport ();
1486 void realtime_stop (bool abort, bool clear_state);
1487 void realtime_locate ();
1488 void non_realtime_start_scrub ();
1489 void non_realtime_set_speed ();
1490 void non_realtime_locate ();
1491 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1492 void non_realtime_overwrite (int entry_request_count, bool& finished);
1493 void post_transport ();
1494 void engine_halted ();
1495 void xrun_recovery ();
1496 void set_track_loop (bool);
1497 bool select_playhead_priority_target (framepos_t&);
1498 void follow_playhead_priority ();
1500 /* These are synchronous and so can only be called from within the process
1504 int send_full_time_code (framepos_t, pframes_t nframes);
1505 void send_song_position_pointer (framepos_t);
1507 TempoMap *_tempo_map;
1508 void tempo_map_changed (const PBD::PropertyChange&);
1510 /* edit/mix groups */
1512 int load_route_groups (const XMLNode&, int);
1514 std::list<RouteGroup *> _route_groups;
1515 RouteGroup* _all_route_group;
1519 boost::shared_ptr<Graph> _process_graph;
1521 SerializedRCUManager<RouteList> routes;
1523 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save);
1524 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect);
1525 bool _adding_routes_in_progress;
1526 bool _reconnecting_routes_in_progress;
1527 bool _route_deletion_in_progress;
1529 uint32_t destructive_index;
1531 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1532 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1534 void route_processors_changed (RouteProcessorChange);
1536 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1537 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1538 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1539 bool with_lock, bool connect_inputs = true,
1540 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1541 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1543 /* track numbering */
1545 void reassign_track_numbers ();
1546 uint32_t _track_number_decimals;
1550 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1551 void route_mute_changed ();
1552 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1553 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1554 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1556 void listen_position_changed ();
1557 void solo_control_mode_changed ();
1559 /* REGION MANAGEMENT */
1561 mutable Glib::Threads::Mutex region_lock;
1563 int load_regions (const XMLNode& node);
1564 int load_compounds (const XMLNode& node);
1566 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1567 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1568 void route_group_property_changed (RouteGroup *);
1572 mutable Glib::Threads::Mutex source_lock;
1575 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1578 void reset_write_sources (bool mark_write_complete, bool force = false);
1583 int load_sources (const XMLNode& node);
1584 XMLNode& get_sources_as_xml ();
1586 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1590 void remove_playlist (boost::weak_ptr<Playlist>);
1591 void track_playlist_changed (boost::weak_ptr<Track>);
1592 void playlist_region_added (boost::weak_ptr<Region>);
1593 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1594 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1596 /* CURVES and AUTOMATION LISTS */
1597 std::map<PBD::ID, AutomationList*> automation_lists;
1599 /* DEFAULT FADE CURVES */
1601 float default_fade_steepness;
1602 float default_fade_msecs;
1606 boost::shared_ptr<Auditioner> auditioner;
1607 void set_audition (boost::shared_ptr<Region>);
1608 void non_realtime_set_audition ();
1609 boost::shared_ptr<Region> pending_audition_region;
1615 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1617 /* INSERT AND SEND MANAGEMENT */
1619 boost::dynamic_bitset<uint32_t> send_bitset;
1620 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1621 boost::dynamic_bitset<uint32_t> return_bitset;
1622 boost::dynamic_bitset<uint32_t> insert_bitset;
1626 struct space_and_path {
1627 uint32_t blocks; ///< 4kB blocks
1628 bool blocks_unknown; ///< true if blocks is unknown
1633 , blocks_unknown (true)
1637 struct space_and_path_ascending_cmp {
1638 bool operator() (space_and_path a, space_and_path b) {
1639 if (a.blocks_unknown != b.blocks_unknown) {
1640 return !a.blocks_unknown;
1642 return a.blocks > b.blocks;
1646 void setup_raid_path (std::string path);
1648 std::vector<space_and_path> session_dirs;
1649 std::vector<space_and_path>::iterator last_rr_session_dir;
1650 uint32_t _total_free_4k_blocks;
1651 /** If this is true, _total_free_4k_blocks is not definite,
1652 as one or more of the session directories' filesystems
1653 could not report free space.
1655 bool _total_free_4k_blocks_uncertain;
1656 Glib::Threads::Mutex space_lock;
1658 bool no_questions_about_missing_files;
1660 std::string get_best_session_directory_for_new_audio ();
1662 mutable gint _playback_load;
1663 mutable gint _capture_load;
1667 SerializedRCUManager<BundleList> _bundles;
1668 XMLNode* _bundle_xml_node;
1669 int load_bundles (XMLNode const &);
1671 UndoHistory _history;
1672 /** current undo transaction, or 0 */
1673 UndoTransaction* _current_trans;
1674 /** GQuarks to describe the reversible commands that are currently in progress.
1675 * These may be nested, in which case more recently-started commands are toward
1676 * the front of the list.
1678 std::list<GQuark> _current_trans_quarks;
1680 int backend_sync_callback (TransportState, framepos_t);
1682 void process_rtop (SessionEvent*);
1684 void update_latency (bool playback);
1686 XMLNode& state(bool);
1689 typedef std::list<Click*> Clicks;
1692 boost::shared_ptr<IO> _click_io;
1693 boost::shared_ptr<Amp> _click_gain;
1695 Sample* click_emphasis_data;
1696 framecnt_t click_length;
1697 framecnt_t click_emphasis_length;
1698 mutable Glib::Threads::RWLock click_lock;
1700 static const Sample default_click[];
1701 static const framecnt_t default_click_length;
1702 static const Sample default_click_emphasis[];
1703 static const framecnt_t default_click_emphasis_length;
1706 framepos_t _clicks_cleared;
1707 void setup_click_sounds (int which);
1708 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1709 void clear_clicks ();
1710 void click (framepos_t start, framecnt_t nframes);
1712 std::vector<Route*> master_outs;
1714 /* range playback */
1716 std::list<AudioRange> current_audio_range;
1718 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1719 void unset_play_range ();
1721 /* temporary hacks to allow selection to be pushed from GUI into backend
1722 Whenever we move the selection object into libardour, these will go away.
1724 Evoral::Range<framepos_t> _range_selection;
1725 Evoral::Range<framepos_t> _object_selection;
1730 boost::shared_ptr<Route> _master_out;
1731 boost::shared_ptr<Route> _monitor_out;
1733 void auto_connect_master_bus ();
1735 /* Windows VST support */
1737 long _windows_vst_callback (
1746 int find_all_sources (std::string path, std::set<std::string>& result);
1747 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1749 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1750 Glib::Threads::Mutex controllables_lock;
1751 Controllables controllables;
1753 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1755 void reset_native_file_format();
1756 bool first_file_data_format_reset;
1757 bool first_file_header_format_reset;
1759 void config_changed (std::string, bool);
1761 XMLNode& get_control_protocol_state ();
1763 void set_history_depth (uint32_t depth);
1765 static bool _disable_all_loaded_plugins;
1766 static bool _bypass_all_loaded_plugins;
1768 mutable bool have_looped; ///< Used in ::audible_frame(*)
1770 void update_route_record_state ();
1771 gint _have_rec_enabled_track;
1772 gint _have_rec_disabled_track;
1774 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1776 /* realtime "apply to set of routes" operations */
1777 template<typename T> SessionEvent*
1778 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1779 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1780 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1781 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1782 ev->rt_return = after;
1783 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1788 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1789 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1790 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition /* ignored*/ );
1791 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1792 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1793 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1794 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1795 void rt_set_record_safe (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1796 void rt_set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, PBD::Controllable::GroupControlDisposition group_override);
1798 /** temporary list of Diskstreams used only during load of 2.X sessions */
1799 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1801 void set_session_range_location (framepos_t, framepos_t);
1803 void setup_midi_machine_control ();
1805 void step_edit_status_change (bool);
1806 uint32_t _step_editors;
1808 /** true if timecode transmission by the transport is suspended, otherwise false */
1809 mutable gint _suspend_timecode_transmission;
1811 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1813 void start_time_changed (framepos_t);
1814 void end_time_changed (framepos_t);
1816 void set_track_monitor_input_status (bool);
1817 framepos_t compute_stop_limit () const;
1819 boost::shared_ptr<Speakers> _speakers;
1820 void load_nested_sources (const XMLNode& node);
1822 /** The directed graph of routes that is currently being used for audio processing
1823 and solo/mute computations.
1825 GraphEdges _current_route_graph;
1827 uint32_t next_control_id () const;
1828 int32_t _order_hint;
1829 bool ignore_route_processor_changes;
1831 MidiClockTicker* midi_clock;
1833 boost::shared_ptr<IO> _ltc_input;
1834 boost::shared_ptr<IO> _ltc_output;
1836 /* Scene Changing */
1837 SceneChanger* _scene_changer;
1839 /* persistent, non-track related MIDI ports */
1840 MidiPortManager* _midi_ports;
1841 MIDI::MachineControl* _mmc;
1844 void setup_click ();
1845 void setup_click_state (const XMLNode*);
1846 void setup_bundles ();
1848 void save_as_bring_callback (uint32_t, uint32_t, std::string);
1850 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
1851 static const uint32_t session_end_shift;
1853 std::string _template_state_dir;
1857 } // namespace ARDOUR
1859 #endif /* __ardour_session_h__ */