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/reallocpool.h"
46 #include "pbd/statefuldestructible.h"
47 #include "pbd/signals.h"
50 #include "lua/luastate.h"
52 #include "evoral/types.hpp"
54 #include "midi++/types.h"
55 #include "midi++/mmc.h"
57 #include "timecode/time.h"
59 #include "ardour/ardour.h"
60 #include "ardour/chan_count.h"
61 #include "ardour/delivery.h"
62 #include "ardour/interthread_info.h"
63 #include "ardour/luascripting.h"
64 #include "ardour/location.h"
65 #include "ardour/monitor_processor.h"
66 #include "ardour/rc_configuration.h"
67 #include "ardour/session_configuration.h"
68 #include "ardour/session_event.h"
69 #include "ardour/interpolation.h"
70 #include "ardour/route.h"
71 #include "ardour/route_graph.h"
77 typedef struct _AEffect AEffect;
87 class ControllableDescriptor;
102 class AudioFileSource;
107 class AutomationList;
120 class MidiClockTicker;
122 class MidiPortManager;
141 class SessionDirectory;
142 class SessionMetadata;
143 class SessionPlaylists;
149 class WindowsVSTPlugin;
151 extern void setup_enum_writer ();
153 class LIBARDOUR_API SessionException: public std::exception {
155 explicit SessionException(const std::string msg) : _message(msg) {}
156 virtual ~SessionException() throw() {}
158 virtual const char* what() const throw() { return _message.c_str(); }
161 std::string _message;
164 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
173 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
174 the bus profile can be null if no master out bus is required.
177 Session (AudioEngine&,
178 const std::string& fullpath,
179 const std::string& snapshot_name,
180 BusProfile* bus_profile = 0,
181 std::string mix_template = "");
185 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format);
186 static std::string get_snapshot_from_instant (const std::string& session_dir);
188 std::string path() const { return _path; }
189 std::string name() const { return _name; }
190 std::string snap_name() const { return _current_snapshot_name; }
191 std::string raid_path () const;
192 bool path_is_within_session (const std::string&);
194 bool writable() const { return _writable; }
197 bool dirty() const { return _state_of_the_state & Dirty; }
198 void set_deletion_in_progress ();
199 void clear_deletion_in_progress ();
200 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
201 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
202 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
203 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
205 PBD::Signal0<void> DirtyChanged;
207 PBD::Signal1<void, bool> RouteAddedOrRemoved;
209 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
211 static PBD::Signal1<void,std::string> Dialog;
213 PBD::Signal0<void> BatchUpdateStart;
214 PBD::Signal0<void> BatchUpdateEnd;
216 int ensure_subdirs ();
218 std::string automation_dir () const; ///< Automation data
219 std::string analysis_dir () const; ///< Analysis data
220 std::string plugins_dir () const; ///< Plugin state
221 std::string externals_dir () const; ///< Links to external files
223 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
225 bool audio_source_name_is_unique (const std::string& name);
226 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);
227 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
228 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
229 std::string new_midi_source_path (const std::string&);
230 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path, const std::string& name, PlaylistDisposition pd = NewPlaylist);
231 RouteList new_route_from_template (uint32_t how_many, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
232 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path, uint32_t channels);
234 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
236 void process (pframes_t nframes);
238 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
239 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true );
240 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
241 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
243 bool have_rec_enabled_track () const;
244 bool have_rec_disabled_track () const;
246 bool have_captured() const { return _have_captured; }
248 void refill_all_track_buffers ();
249 Butler* butler() { return _butler; }
250 void butler_transport_work ();
252 void refresh_disk_space ();
254 int load_diskstreams_2X (XMLNode const &, int);
256 int load_routes (const XMLNode&, int);
257 boost::shared_ptr<RouteList> get_routes() const {
258 return routes.reader ();
261 boost::shared_ptr<RouteList> get_tracks() const;
262 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
263 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
265 uint32_t nroutes() const { return routes.reader()->size(); }
266 uint32_t ntracks () const;
267 uint32_t nbusses () const;
269 boost::shared_ptr<BundleList> bundles () {
270 return _bundles.reader ();
273 struct LIBARDOUR_API RoutePublicOrderSorter {
274 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
277 void set_order_hint (int32_t order_hint) {_order_hint = order_hint;};
278 void notify_remote_id_change ();
279 void sync_order_keys ();
281 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
282 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
283 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
285 static char session_name_is_legal (const std::string&);
286 bool io_name_is_legal (const std::string&);
287 boost::shared_ptr<Route> route_by_name (std::string);
288 boost::shared_ptr<Route> route_by_id (PBD::ID);
289 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
290 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt);
291 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID);
292 void routes_using_input_from (const std::string& str, RouteList& rl);
294 bool route_name_unique (std::string) const;
295 bool route_name_internal (std::string) const;
297 uint32_t track_number_decimals () const {
298 return _track_number_decimals;
301 bool get_record_enabled() const {
302 return (record_status () >= Enabled);
305 RecordState record_status() const {
306 return (RecordState) g_atomic_int_get (&_record_status);
309 bool actively_recording () const {
310 return record_status() == Recording;
313 bool record_enabling_legal () const;
314 void maybe_enable_record ();
315 void disable_record (bool rt_context, bool force = false);
316 void step_back_from_record ();
318 void set_all_tracks_record_enabled(bool);
320 void maybe_write_autosave ();
322 /* Emitted when all i/o connections are complete */
324 PBD::Signal0<void> IOConnectionsComplete;
326 /* Timecode status signals */
327 PBD::Signal1<void, bool> MTCSyncStateChanged;
328 PBD::Signal1<void, bool> LTCSyncStateChanged;
330 /* Record status signals */
332 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
333 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
334 from the previous signal and session state.
336 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
338 /* Emited when session is loaded */
339 PBD::Signal0<void> SessionLoaded;
341 /* Transport mechanism signals */
343 /** Emitted on the following changes in transport state:
344 * - stop (from the butler thread)
345 * - change in whether or not we are looping (from the process thread)
346 * - change in the play range (from the process thread)
347 * - start (from the process thread)
350 PBD::Signal0<void> TransportStateChange;
352 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
353 PBD::Signal1<void,framepos_t> Xrun;
354 PBD::Signal0<void> TransportLooped;
356 /** emitted when a locate has occurred */
357 PBD::Signal0<void> Located;
359 PBD::Signal1<void,RouteList&> RouteAdded;
360 /** Emitted when a property of one of our route groups changes.
361 * The parameter is the RouteGroup that has changed.
363 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
364 /** Emitted when a route is added to one of our route groups.
365 * First parameter is the RouteGroup, second is the route.
367 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
368 /** Emitted when a route is removed from one of our route groups.
369 * First parameter is the RouteGroup, second is the route.
371 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
373 /* Step Editing status changed */
374 PBD::Signal1<void,bool> StepEditStatusChange;
376 /* Timecode state signals */
377 PBD::Signal0<void> MtcOrLtcInputPortChanged;
379 void queue_event (SessionEvent*);
381 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
382 void request_bounded_roll (framepos_t start, framepos_t end);
383 void request_stop (bool abort = false, bool clear_state = false);
384 void request_locate (framepos_t frame, bool with_roll = false);
386 void request_play_loop (bool yn, bool leave_rolling = false);
387 bool get_play_loop () const { return play_loop; }
389 framepos_t last_transport_start () const { return _last_roll_location; }
392 void use_rf_shuttle_speed ();
393 void allow_auto_play (bool yn);
394 void request_transport_speed (double speed, bool as_default = true);
395 void request_transport_speed_nonzero (double, bool as_default = true);
396 void request_overwrite_buffer (Track *);
397 void adjust_playback_buffering();
398 void adjust_capture_buffering();
399 void request_track_speed (Track *, double speed);
400 void request_input_change_handling ();
402 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
403 bool transport_locked () const;
407 framepos_t current_end_frame () const;
408 framepos_t current_start_frame () const;
409 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
410 framecnt_t frame_rate () const { return _current_frame_rate; }
411 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
412 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
413 framecnt_t frames_per_hour () const { return _frames_per_hour; }
415 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
416 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
418 MIDI::byte get_mtc_timecode_bits() const {
419 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
422 double timecode_frames_per_second() const;
423 bool timecode_drop_frames() const;
427 Locations *locations() { return _locations; }
429 PBD::Signal1<void,Location*> auto_loop_location_changed;
430 PBD::Signal1<void,Location*> auto_punch_location_changed;
431 PBD::Signal0<void> locations_modified;
433 void set_auto_punch_location (Location *);
434 void set_auto_loop_location (Location *);
435 void set_session_extents (framepos_t start, framepos_t end);
436 int location_name(std::string& result, std::string base = std::string(""));
438 pframes_t get_block_size() const { return current_block_size; }
439 framecnt_t worst_output_latency () const { return _worst_output_latency; }
440 framecnt_t worst_input_latency () const { return _worst_input_latency; }
441 framecnt_t worst_track_latency () const { return _worst_track_latency; }
442 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
445 std::string new_parent_folder; /* parent folder where new session folder will be created */
446 std::string new_name; /* name of newly saved session */
447 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
448 bool include_media; /* true if the newly saved session should contain references to media */
449 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
450 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
452 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
454 /* emitted as we make progress. 3 arguments passed to signal
457 * 1: percentage complete measured as a fraction (0-1.0) of
458 * total data copying done.
459 * 2: number of files copied so far
460 * 3: total number of files to copy
462 * Handler should return true for save-as to continue, or false
463 * to stop (and remove all evidence of partial save-as).
465 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
467 /* if save_as() returns non-zero, this string will indicate the reason why.
469 std::string failure_message;
472 int save_as (SaveAs&);
473 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
474 int restore_state (std::string snapshot_name);
475 int save_template (std::string template_name, bool replace_existing = false);
476 int save_history (std::string snapshot_name = "");
477 int restore_history (std::string snapshot_name);
478 void remove_state (std::string snapshot_name);
479 void rename_state (std::string old_name, std::string new_name);
480 void remove_pending_capture_state ();
481 int rename (const std::string&);
482 bool get_nsm_state () const { return _under_nsm_control; }
483 void set_nsm_state (bool state) { _under_nsm_control = state; }
484 bool save_default_options ();
486 PBD::Signal1<void,std::string> StateSaved;
487 PBD::Signal0<void> StateReady;
489 /* emitted when session needs to be saved due to some internal
490 * event or condition (i.e. not in response to a user request).
492 * Only one object should
493 * connect to this signal and take responsibility.
495 * Argument is the snapshot name to use when saving.
497 PBD::Signal1<void,std::string> SaveSessionRequested;
499 /* emitted during a session save to allow other entities to add state, via
500 * extra XML, to the session state
502 PBD::Signal0<void> SessionSaveUnderway;
504 std::vector<std::string> possible_states() const;
505 static std::vector<std::string> possible_states (std::string path);
507 XMLNode& get_state();
508 int set_state(const XMLNode& node, int version); // not idempotent
509 XMLNode& get_template();
511 /// The instant xml file is written to the session directory
512 void add_instant_xml (XMLNode&, bool write_to_config = true);
513 XMLNode* instant_xml (const std::string& str);
515 enum StateOfTheState {
520 InitialConnecting = 0x8,
526 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
528 class StateProtector {
530 StateProtector (Session* s) : _session (s) {
531 g_atomic_int_inc (&s->_suspend_save);
534 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
535 while (_session->_save_queued) {
536 _session->_save_queued = false;
537 _session->save_state ("");
545 void add_route_group (RouteGroup *);
546 void remove_route_group (RouteGroup&);
547 void reorder_route_groups (std::list<RouteGroup*>);
549 RouteGroup* route_group_by_name (std::string);
550 RouteGroup& all_route_group() const;
552 PBD::Signal1<void,RouteGroup*> route_group_added;
553 PBD::Signal0<void> route_group_removed;
554 PBD::Signal0<void> route_groups_reordered;
556 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
557 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
562 std::list<RouteGroup*> const & route_groups () const {
563 return _route_groups;
566 /* fundamental operations. duh. */
568 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
571 TrackMode mode = Normal,
572 RouteGroup* route_group = 0,
573 uint32_t how_many = 1,
574 std::string name_template = ""
577 RouteList new_audio_route (
578 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
581 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
582 const ChanCount& input, const ChanCount& output,
583 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
584 TrackMode mode = Normal,
585 RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
588 void remove_routes (boost::shared_ptr<RouteList>);
589 void remove_route (boost::shared_ptr<Route>);
591 void resort_routes ();
592 void resort_routes_using (boost::shared_ptr<RouteList>);
594 AudioEngine & engine() { return _engine; }
595 AudioEngine const & engine () const { return _engine; }
597 static std::string default_track_name_pattern (DataType);
601 framepos_t transport_frame () const {return _transport_frame; }
602 framepos_t record_location () const {return _last_record_location; }
603 framepos_t audible_frame () const;
604 framepos_t requested_return_frame() const { return _requested_return_frame; }
605 void set_requested_return_frame(framepos_t return_to);
619 void sync_time_vars();
621 void bbt_time (framepos_t when, Timecode::BBT_Time&);
622 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
623 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
624 void timecode_time (Timecode::Time &);
625 void timecode_time (framepos_t when, Timecode::Time&);
626 void timecode_time_subframes (framepos_t when, Timecode::Time&);
628 void timecode_duration (framecnt_t, Timecode::Time&) const;
629 void timecode_duration_string (char *, size_t len, framecnt_t) const;
631 framecnt_t convert_to_frames (AnyTime const & position);
632 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
634 static PBD::Signal1<void, framepos_t> StartTimeChanged;
635 static PBD::Signal1<void, framepos_t> EndTimeChanged;
637 void request_sync_source (Slave*);
638 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
639 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
640 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
642 double transport_speed() const { return _transport_speed; }
643 bool transport_stopped() const { return _transport_speed == 0.0f; }
644 bool transport_rolling() const { return _transport_speed != 0.0f; }
646 bool silent () { return _silent; }
648 TempoMap& tempo_map() { return *_tempo_map; }
649 const TempoMap& tempo_map() const { return *_tempo_map; }
651 unsigned int get_xrun_count () const {return _xrun_count; }
652 void reset_xrun_count () {_xrun_count = 0; }
656 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
658 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
659 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
660 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
662 /* source management */
664 void import_files (ImportStatus&);
665 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
666 std::string build_tmp_convert_name (std::string file);
668 boost::shared_ptr<ExportHandler> get_export_handler ();
669 boost::shared_ptr<ExportStatus> get_export_status ();
671 int start_audio_export (framepos_t position);
673 PBD::Signal1<int, framecnt_t> ProcessExport;
674 static PBD::Signal2<void,std::string, std::string> Exported;
676 void add_source (boost::shared_ptr<Source>);
677 void remove_source (boost::weak_ptr<Source>);
679 void cleanup_regions();
680 bool can_cleanup_peakfiles () const;
681 int cleanup_peakfiles ();
682 int cleanup_sources (CleanupReport&);
683 int cleanup_trash_sources (CleanupReport&);
685 int destroy_sources (std::list<boost::shared_ptr<Source> >);
687 int remove_last_capture ();
689 /** handlers should return 0 for "everything OK", and any other value for
690 * "cannot setup audioengine".
692 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
694 /** handlers should return -1 for "stop cleanup",
695 0 for "yes, delete this playlist",
696 1 for "no, don't delete this playlist".
698 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
700 /** handlers should return 0 for "ignore the rate mismatch",
701 !0 for "do not use this session"
703 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
705 /** handlers should return !0 for use pending state, 0 for ignore it.
707 static PBD::Signal0<int> AskAboutPendingState;
709 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
710 size_t, std::string const &, uint32_t, bool destructive);
712 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
713 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
715 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
716 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
717 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
718 uint32_t count_sources_by_origin (const std::string&);
720 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
722 /* Curves and AutomationLists (TODO when they go away) */
723 void add_automation_list(AutomationList*);
727 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
728 void audition_playlist ();
729 void audition_region (boost::shared_ptr<Region>);
730 void cancel_audition ();
731 bool is_auditioning () const;
733 PBD::Signal1<void,bool> AuditionActive;
736 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
737 void unregister_lua_function (const std::string& name);
738 std::vector<std::string> registered_lua_functions ();
739 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
740 void scripts_changed (); // called from lua, updates _n_lua_scripts
742 /* flattening stuff */
744 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
745 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
746 boost::shared_ptr<Processor> endpoint,
747 bool include_endpoint, bool for_export, bool for_freeze);
748 int freeze_all (InterThreadInfo&);
750 /* session-wide solo/mute/rec-enable */
752 bool soloing() const { return _non_soloed_outs_muted; }
753 bool listening() const { return _listen_cnt > 0; }
754 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
756 static const SessionEvent::RTeventCallback rt_cleanup;
758 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
759 void clear_all_solo_state (boost::shared_ptr<RouteList>);
760 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
761 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
762 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
763 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
764 void set_record_safe (boost::shared_ptr<RouteList>, bool yn, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
765 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
766 void set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
767 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
769 PBD::Signal1<void,bool> SoloActive;
770 PBD::Signal0<void> SoloChanged;
771 PBD::Signal0<void> IsolatedChanged;
772 PBD::Signal0<void> MonitorChanged;
774 PBD::Signal0<void> session_routes_reconnected;
776 /* monitor/master out */
778 void add_monitor_section ();
779 void reset_monitor_section ();
780 void remove_monitor_section ();
781 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
783 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
784 boost::shared_ptr<Route> master_out() const { return _master_out; }
786 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
787 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
788 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
789 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
790 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
791 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
792 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
794 static void set_disable_all_loaded_plugins (bool yn) {
795 _disable_all_loaded_plugins = yn;
797 static bool get_disable_all_loaded_plugins() {
798 return _disable_all_loaded_plugins;
800 static void set_bypass_all_loaded_plugins (bool yn) {
801 _bypass_all_loaded_plugins = yn;
803 static bool get_bypass_all_loaded_plugins() {
804 return _bypass_all_loaded_plugins;
807 uint32_t next_send_id();
808 uint32_t next_aux_send_id();
809 uint32_t next_return_id();
810 uint32_t next_insert_id();
811 void mark_send_id (uint32_t);
812 void mark_aux_send_id (uint32_t);
813 void mark_return_id (uint32_t);
814 void mark_insert_id (uint32_t);
815 void unmark_send_id (uint32_t);
816 void unmark_aux_send_id (uint32_t);
817 void unmark_return_id (uint32_t);
818 void unmark_insert_id (uint32_t);
820 /* s/w "RAID" management */
822 boost::optional<framecnt_t> available_capture_duration();
826 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
827 void remove_bundle (boost::shared_ptr<Bundle>);
828 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
830 PBD::Signal0<void> BundleAddedOrRemoved;
834 /* History (for editors, mixers, UIs etc.) */
836 /** Undo some transactions.
837 * @param n Number of transactions to undo.
839 void undo (uint32_t n) {
843 void redo (uint32_t n) {
847 UndoHistory& history() { return _history; }
849 uint32_t undo_depth() const { return _history.undo_depth(); }
850 uint32_t redo_depth() const { return _history.redo_depth(); }
851 std::string next_undo() const { return _history.next_undo(); }
852 std::string next_redo() const { return _history.next_redo(); }
854 void begin_reversible_command (const std::string& cmd_name);
855 void begin_reversible_command (GQuark);
856 void abort_reversible_command ();
857 void commit_reversible_command (Command* cmd = 0);
859 void add_command (Command *const cmd);
861 /** @return The list of operations that are currently in progress */
862 std::list<GQuark> const & current_operations () {
863 return _current_trans_quarks;
866 bool operation_in_progress (GQuark) const;
868 void add_commands (std::vector<Command*> const & cmds);
870 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
872 // these commands are implemented in libs/ardour/session_command.cc
873 Command* memento_command_factory(XMLNode* n);
874 Command* stateful_diff_command_factory (XMLNode *);
875 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
879 boost::shared_ptr<IO> click_io() { return _click_io; }
880 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
882 /* disk, buffer loads */
884 uint32_t playback_load ();
885 uint32_t capture_load ();
889 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
890 void request_cancel_play_range ();
891 bool get_play_range () const { return _play_range; }
893 void maybe_update_session_range (framepos_t, framepos_t);
895 /* temporary hacks to allow selection to be pushed from GUI into backend.
896 Whenever we move the selection object into libardour, these will go away.
898 void set_range_selection (framepos_t start, framepos_t end);
899 void set_object_selection (framepos_t start, framepos_t end);
900 void clear_range_selection ();
901 void clear_object_selection ();
903 /* buffers for gain and pan */
905 gain_t* gain_automation_buffer () const;
906 gain_t* trim_automation_buffer () const;
907 gain_t* send_gain_automation_buffer () const;
908 pan_t** pan_automation_buffer () const;
910 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
914 static int vst_current_loading_id;
915 static const char* vst_can_do_strings[];
916 static const int vst_can_do_string_count;
918 static intptr_t vst_callback (
927 static PBD::Signal0<void> SendFeedback;
931 boost::shared_ptr<Speakers> get_speakers ();
935 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
937 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
938 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
940 void add_controllable (boost::shared_ptr<PBD::Controllable>);
941 void remove_controllable (PBD::Controllable*);
943 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
945 SessionConfiguration config;
947 bool exporting () const {
951 bool bounce_processing() const {
952 return _bounce_processing_active;
955 /* this is a private enum, but setup_enum_writer() needs it,
956 and i can't find a way to give that function
960 enum PostTransportWork {
961 PostTransportStop = 0x1,
962 PostTransportDuration = 0x2,
963 PostTransportLocate = 0x4,
964 PostTransportRoll = 0x8,
965 PostTransportAbort = 0x10,
966 PostTransportOverWrite = 0x20,
967 PostTransportSpeed = 0x40,
968 PostTransportAudition = 0x80,
969 PostTransportReverse = 0x100,
970 PostTransportInputChange = 0x200,
971 PostTransportCurveRealloc = 0x400,
972 PostTransportClearSubstate = 0x800,
973 PostTransportAdjustPlaybackBuffering = 0x1000,
974 PostTransportAdjustCaptureBuffering = 0x2000
983 SlaveState slave_state() const { return _slave_state; }
984 Slave* slave() const { return _slave; }
986 boost::shared_ptr<SessionPlaylists> playlists;
988 void send_mmc_locate (framepos_t);
989 void queue_full_time_code () { _send_timecode_update = true; }
990 void queue_song_position_pointer () { /* currently does nothing */ }
992 bool step_editing() const { return (_step_editors > 0); }
994 void request_suspend_timecode_transmission ();
995 void request_resume_timecode_transmission ();
996 bool timecode_transmission_suspended () const;
998 std::vector<std::string> source_search_path(DataType) const;
999 void ensure_search_path_includes (const std::string& path, DataType type);
1000 void remove_dir_from_search_path (const std::string& path, DataType type);
1002 std::list<std::string> unknown_processors () const;
1004 /** Emitted when a feedback cycle has been detected within Ardour's signal
1005 processing path. Until it is fixed (by the user) some (unspecified)
1006 routes will not be run.
1008 static PBD::Signal0<void> FeedbackDetected;
1010 /** Emitted when a graph sort has successfully completed, which means
1011 that it has no feedback cycles.
1013 static PBD::Signal0<void> SuccessfulGraphSort;
1015 /* handlers can return an integer value:
1016 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1017 to modify the search path and we should try to find it again.
1018 1: quit entire session load
1019 2: as 0, but don't ask about other missing files
1020 3: don't ask about other missing files, and just mark this one missing
1021 -1: just mark this one missing
1022 any other value: as -1
1024 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1026 /** Emitted when the session wants Ardour to quit */
1027 static PBD::Signal0<void> Quit;
1029 /** Emitted when Ardour is asked to load a session in an older session
1030 * format, and makes a backup copy.
1032 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1034 SceneChanger* scene_changer() const { return _scene_changer; }
1036 /* asynchronous MIDI control ports */
1038 boost::shared_ptr<Port> midi_input_port () const;
1039 boost::shared_ptr<Port> midi_output_port () const;
1040 boost::shared_ptr<Port> mmc_output_port () const;
1041 boost::shared_ptr<Port> mmc_input_port () const;
1042 boost::shared_ptr<Port> scene_input_port () const;
1043 boost::shared_ptr<Port> scene_output_port () const;
1045 /* synchronous MIDI ports used for synchronization */
1047 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1048 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1049 boost::shared_ptr<MidiPort> mtc_output_port () const;
1050 boost::shared_ptr<MidiPort> mtc_input_port () const;
1051 boost::shared_ptr<Port> ltc_input_port() const;
1052 boost::shared_ptr<Port> ltc_output_port() const;
1054 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1055 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1057 MIDI::MachineControl& mmc() { return *_mmc; }
1059 void reconnect_midi_scene_ports (bool);
1060 void reconnect_mtc_ports ();
1061 void reconnect_mmc_ports (bool);
1063 void reconnect_ltc_input ();
1064 void reconnect_ltc_output ();
1067 friend class AudioEngine;
1068 void set_block_size (pframes_t nframes);
1069 void set_frame_rate (framecnt_t nframes);
1070 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1074 void schedule_curve_reallocation ();
1075 void update_latency_compensation (bool force = false);
1078 int create (const std::string& mix_template, BusProfile*);
1082 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
1083 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
1084 StopPendingCapture = 0x4,
1085 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
1086 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
1087 PendingLocate = 0x20,
1090 /* stuff used in process() should be close together to
1094 typedef void (Session::*process_function_type)(pframes_t);
1096 AudioEngine& _engine;
1097 mutable gint processing_prohibited;
1098 process_function_type process_function;
1099 process_function_type last_process_function;
1100 bool _bounce_processing_active;
1101 bool waiting_for_sync_offset;
1102 framecnt_t _base_frame_rate;
1103 framecnt_t _current_frame_rate; //this includes video pullup offset
1104 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1105 int transport_sub_state;
1106 mutable gint _record_status;
1107 framepos_t _transport_frame;
1108 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1112 // varispeed playback
1113 double _transport_speed;
1114 double _default_transport_speed;
1115 double _last_transport_speed;
1116 double _signalled_varispeed;
1117 double _target_transport_speed;
1118 CubicInterpolation interpolation;
1120 bool auto_play_legal;
1121 framepos_t _last_slave_transport_frame;
1122 framecnt_t maximum_output_latency;
1123 framepos_t _requested_return_frame;
1124 pframes_t current_block_size;
1125 framecnt_t _worst_output_latency;
1126 framecnt_t _worst_input_latency;
1127 framecnt_t _worst_track_latency;
1128 bool _have_captured;
1129 bool _non_soloed_outs_muted;
1131 uint32_t _listen_cnt;
1132 uint32_t _solo_isolated_cnt;
1135 bool _under_nsm_control;
1136 unsigned int _xrun_count;
1138 void mtc_status_changed (bool);
1139 PBD::ScopedConnection mtc_status_connection;
1140 void ltc_status_changed (bool);
1141 PBD::ScopedConnection ltc_status_connection;
1143 void initialize_latencies ();
1144 void set_worst_io_latencies ();
1145 void set_worst_playback_latency ();
1146 void set_worst_capture_latency ();
1147 void set_worst_io_latencies_x (IOChange, void *) {
1148 set_worst_io_latencies ();
1150 void post_capture_latency ();
1151 void post_playback_latency ();
1153 void update_latency_compensation_proxy (void* ignored);
1155 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1157 void process_scrub (pframes_t);
1158 void process_without_events (pframes_t);
1159 void process_with_events (pframes_t);
1160 void process_audition (pframes_t);
1161 int process_export (pframes_t);
1162 int process_export_fw (pframes_t);
1164 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1165 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1166 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1168 static const framecnt_t bounce_chunk_size;
1170 /* slave tracking */
1172 static const int delta_accumulator_size = 25;
1173 int delta_accumulator_cnt;
1174 int32_t delta_accumulator[delta_accumulator_size];
1175 int32_t average_slave_delta;
1177 bool have_first_delta_accumulator;
1179 SlaveState _slave_state;
1182 framepos_t slave_wait_end;
1184 void reset_slave_state ();
1185 bool follow_slave (pframes_t);
1186 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1187 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1188 void follow_slave_silently (pframes_t nframes, float slave_speed);
1190 void switch_to_sync_source (SyncSource); /* !RT context */
1191 void drop_sync_source (); /* !RT context */
1192 void use_sync_source (Slave*); /* RT context */
1194 bool post_export_sync;
1195 framepos_t post_export_position;
1198 bool _export_started;
1199 bool _export_rolling;
1201 boost::shared_ptr<ExportHandler> export_handler;
1202 boost::shared_ptr<ExportStatus> export_status;
1205 int stop_audio_export ();
1206 void finalize_audio_export ();
1207 void finalize_export_internal (bool stop_freewheel);
1208 bool _pre_export_mmc_enabled;
1210 PBD::ScopedConnection export_freewheel_connection;
1212 void get_track_statistics ();
1213 int process_routes (pframes_t, bool& need_butler);
1214 int silent_process_routes (pframes_t, bool& need_butler);
1216 /** @return 1 if there is a pending declick fade-in,
1217 -1 if there is a pending declick fade-out,
1218 0 if there is no pending declick.
1220 int get_transport_declick_required () {
1221 if (transport_sub_state & PendingDeclickIn) {
1222 transport_sub_state &= ~PendingDeclickIn;
1224 } else if (transport_sub_state & PendingDeclickOut) {
1225 /* XXX: not entirely sure why we don't clear this */
1227 } else if (transport_sub_state & PendingLoopDeclickOut) {
1228 /* Return the declick out first ... */
1229 transport_sub_state &= ~PendingLoopDeclickOut;
1231 } else if (transport_sub_state & PendingLoopDeclickIn) {
1232 /* ... then the declick in on the next call */
1233 transport_sub_state &= ~PendingLoopDeclickIn;
1240 bool maybe_stop (framepos_t limit);
1241 bool maybe_sync_start (pframes_t &);
1243 void check_declick_out ();
1249 /** Number of process frames since the last MTC output (when sending MTC); used to
1250 * know when to send full MTC messages every so often.
1252 pframes_t _pframes_since_last_mtc;
1253 bool session_midi_feedback;
1256 framepos_t last_loopend;
1258 boost::scoped_ptr<SessionDirectory> _session_dir;
1261 void graph_reordered ();
1263 /** current snapshot name, without the .ardour suffix */
1264 void set_snapshot_name (const std::string &);
1265 void save_snapshot_name (const std::string &);
1266 std::string _current_snapshot_name;
1268 XMLTree* state_tree;
1269 bool state_was_pending;
1270 StateOfTheState _state_of_the_state;
1272 friend class StateProtector;
1273 gint _suspend_save; /* atomic */
1274 volatile bool _save_queued;
1275 Glib::Threads::Mutex save_state_lock;
1276 Glib::Threads::Mutex peak_cleanup_lock;
1278 int load_options (const XMLNode&);
1279 int load_state (std::string snapshot_name);
1281 framepos_t _last_roll_location;
1282 /** the session frame time at which we last rolled, located, or changed transport direction */
1283 framepos_t _last_roll_or_reversal_location;
1284 framepos_t _last_record_location;
1286 bool pending_locate_roll;
1287 framepos_t pending_locate_frame;
1288 bool pending_locate_flush;
1290 bool pending_auto_loop;
1292 PBD::ReallocPool _mempool;
1294 Glib::Threads::Mutex lua_lock;
1295 luabridge::LuaRef * _lua_run;
1296 luabridge::LuaRef * _lua_add;
1297 luabridge::LuaRef * _lua_del;
1298 luabridge::LuaRef * _lua_list;
1299 luabridge::LuaRef * _lua_load;
1300 luabridge::LuaRef * _lua_save;
1301 luabridge::LuaRef * _lua_cleanup;
1302 uint32_t _n_lua_scripts;
1305 void try_run_lua (pframes_t);
1309 static const PostTransportWork ProcessCannotProceedMask =
1311 PostTransportInputChange|
1313 PostTransportReverse|
1314 PostTransportCurveRealloc|
1315 PostTransportAudition|
1316 PostTransportLocate|
1318 PostTransportClearSubstate);
1320 gint _post_transport_work; /* accessed only atomic ops */
1321 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1322 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1323 void add_post_transport_work (PostTransportWork ptw);
1325 void schedule_playback_buffering_adjustment ();
1326 void schedule_capture_buffering_adjustment ();
1328 uint32_t cumulative_rf_motion;
1331 void set_rf_speed (float speed);
1332 void reset_rf_scale (framecnt_t frames_moved);
1334 Locations* _locations;
1335 void location_added (Location*);
1336 void location_removed (Location*);
1337 void locations_changed ();
1338 void _locations_changed (const Locations::LocationList&);
1340 void update_skips (Location*, bool consolidate);
1341 void update_marks (Location* loc);
1342 void consolidate_skips (Location*);
1343 void sync_locations_to_skips ();
1344 void _sync_locations_to_skips ();
1346 PBD::ScopedConnectionList skip_update_connections;
1347 bool _ignore_skips_updates;
1349 PBD::ScopedConnectionList punch_connections;
1350 void auto_punch_start_changed (Location *);
1351 void auto_punch_end_changed (Location *);
1352 void auto_punch_changed (Location *);
1354 PBD::ScopedConnectionList loop_connections;
1355 void auto_loop_changed (Location *);
1356 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1358 int ensure_engine (uint32_t desired_sample_rate);
1359 void pre_engine_init (std::string path);
1360 int post_engine_init ();
1361 int immediately_post_engine ();
1362 void remove_empty_sounds ();
1364 void session_loaded ();
1366 void setup_midi_control ();
1367 int midi_read (MIDI::Port *);
1369 void enable_record ();
1371 void increment_transport_position (framecnt_t val) {
1372 if (max_framepos - val < _transport_frame) {
1373 _transport_frame = max_framepos;
1375 _transport_frame += val;
1379 void decrement_transport_position (framecnt_t val) {
1380 if (val < _transport_frame) {
1381 _transport_frame -= val;
1383 _transport_frame = 0;
1387 void post_transport_motion ();
1388 static void *session_loader_thread (void *arg);
1392 /* Signal Forwarding */
1393 void emit_route_signals ();
1394 void emit_thread_run ();
1395 static void *emit_thread (void *);
1396 void emit_thread_start ();
1397 void emit_thread_terminate ();
1399 pthread_t _rt_emit_thread;
1400 bool _rt_thread_active;
1402 pthread_mutex_t _rt_emit_mutex;
1403 pthread_cond_t _rt_emit_cond;
1404 bool _rt_emit_pending;
1407 /* SessionEventManager interface */
1409 void process_event (SessionEvent*);
1410 void set_next_event ();
1411 void cleanup_event (SessionEvent*,int);
1413 /* MIDI Machine Control */
1416 void spp_continue ();
1419 void mmc_deferred_play (MIDI::MachineControl &);
1420 void mmc_stop (MIDI::MachineControl &);
1421 void mmc_step (MIDI::MachineControl &, int);
1422 void mmc_pause (MIDI::MachineControl &);
1423 void mmc_record_pause (MIDI::MachineControl &);
1424 void mmc_record_strobe (MIDI::MachineControl &);
1425 void mmc_record_exit (MIDI::MachineControl &);
1426 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1427 void mmc_fast_forward (MIDI::MachineControl &);
1428 void mmc_rewind (MIDI::MachineControl &);
1429 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1430 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1431 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1433 struct timeval last_mmc_step;
1436 typedef boost::function<bool()> MidiTimeoutCallback;
1437 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1439 MidiTimeoutList midi_timeouts;
1440 bool mmc_step_timeout ();
1441 void send_immediate_mmc (MIDI::MachineControlCommand);
1443 MIDI::byte mtc_msg[16];
1444 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1445 MIDI::byte midi_msg[16];
1446 double outbound_mtc_timecode_frame;
1447 Timecode::Time transmitting_timecode_time;
1448 int next_quarter_frame_to_send;
1450 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1451 framecnt_t _frames_per_hour;
1452 framecnt_t _timecode_frames_per_hour;
1454 /* cache the most-recently requested time conversions. This helps when we
1455 * have multiple clocks showing the same time (e.g. the transport frame) */
1456 bool last_timecode_valid;
1457 framepos_t last_timecode_when;
1458 Timecode::Time last_timecode;
1460 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1462 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1464 LTCEncoder* ltc_encoder;
1465 ltcsnd_sample_t* ltc_enc_buf;
1467 Timecode::TimecodeFormat ltc_enc_tcformat;
1468 int32_t ltc_buf_off;
1469 int32_t ltc_buf_len;
1472 int32_t ltc_enc_byte;
1473 framepos_t ltc_enc_pos;
1475 framepos_t ltc_enc_off;
1477 framepos_t ltc_prev_cycle;
1479 framepos_t ltc_timecode_offset;
1480 bool ltc_timecode_negative_offset;
1482 LatencyRange ltc_out_latency;
1484 void ltc_tx_initialize();
1485 void ltc_tx_cleanup();
1486 void ltc_tx_reset();
1487 void ltc_tx_resync_latency();
1488 void ltc_tx_recalculate_position();
1489 void ltc_tx_parse_offset();
1490 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1492 void reset_record_status ();
1494 int no_roll (pframes_t nframes);
1495 int fail_roll (pframes_t nframes);
1497 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1498 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1500 MidiControlUI* midi_control_ui;
1502 int start_midi_thread ();
1504 void set_play_loop (bool yn, double speed);
1505 void unset_play_loop ();
1506 void overwrite_some_buffers (Track *);
1507 void flush_all_inserts ();
1508 int micro_locate (framecnt_t distance);
1509 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1510 void start_locate (framepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1511 void force_locate (framepos_t frame, bool with_roll = false);
1512 void set_track_speed (Track *, double speed);
1513 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1514 void stop_transport (bool abort = false, bool clear_state = false);
1515 void start_transport ();
1516 void realtime_stop (bool abort, bool clear_state);
1517 void realtime_locate ();
1518 void non_realtime_start_scrub ();
1519 void non_realtime_set_speed ();
1520 void non_realtime_locate ();
1521 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1522 void non_realtime_overwrite (int entry_request_count, bool& finished);
1523 void post_transport ();
1524 void engine_halted ();
1525 void xrun_recovery ();
1526 void set_track_loop (bool);
1527 bool select_playhead_priority_target (framepos_t&);
1528 void follow_playhead_priority ();
1530 /* These are synchronous and so can only be called from within the process
1534 int send_full_time_code (framepos_t, pframes_t nframes);
1535 void send_song_position_pointer (framepos_t);
1537 TempoMap *_tempo_map;
1538 void tempo_map_changed (const PBD::PropertyChange&);
1540 /* edit/mix groups */
1542 int load_route_groups (const XMLNode&, int);
1544 std::list<RouteGroup *> _route_groups;
1545 RouteGroup* _all_route_group;
1549 boost::shared_ptr<Graph> _process_graph;
1551 SerializedRCUManager<RouteList> routes;
1553 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save);
1554 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect);
1555 bool _adding_routes_in_progress;
1556 bool _reconnecting_routes_in_progress;
1557 bool _route_deletion_in_progress;
1559 uint32_t destructive_index;
1561 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1562 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1564 void route_processors_changed (RouteProcessorChange);
1566 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1567 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1568 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1569 bool with_lock, bool connect_inputs = true,
1570 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1571 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1573 /* track numbering */
1575 void reassign_track_numbers ();
1576 uint32_t _track_number_decimals;
1580 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1581 void route_mute_changed ();
1582 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1583 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1584 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1586 void listen_position_changed ();
1587 void solo_control_mode_changed ();
1589 /* REGION MANAGEMENT */
1591 mutable Glib::Threads::Mutex region_lock;
1593 int load_regions (const XMLNode& node);
1594 int load_compounds (const XMLNode& node);
1596 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1597 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1598 void route_group_property_changed (RouteGroup *);
1602 mutable Glib::Threads::Mutex source_lock;
1605 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1608 void reset_write_sources (bool mark_write_complete, bool force = false);
1613 int load_sources (const XMLNode& node);
1614 XMLNode& get_sources_as_xml ();
1616 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1620 void remove_playlist (boost::weak_ptr<Playlist>);
1621 void track_playlist_changed (boost::weak_ptr<Track>);
1622 void playlist_region_added (boost::weak_ptr<Region>);
1623 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1624 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1626 /* CURVES and AUTOMATION LISTS */
1627 std::map<PBD::ID, AutomationList*> automation_lists;
1629 /* DEFAULT FADE CURVES */
1631 float default_fade_steepness;
1632 float default_fade_msecs;
1636 boost::shared_ptr<Auditioner> auditioner;
1637 void set_audition (boost::shared_ptr<Region>);
1638 void non_realtime_set_audition ();
1639 boost::shared_ptr<Region> pending_audition_region;
1645 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1647 /* INSERT AND SEND MANAGEMENT */
1649 boost::dynamic_bitset<uint32_t> send_bitset;
1650 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1651 boost::dynamic_bitset<uint32_t> return_bitset;
1652 boost::dynamic_bitset<uint32_t> insert_bitset;
1656 struct space_and_path {
1657 uint32_t blocks; ///< 4kB blocks
1658 bool blocks_unknown; ///< true if blocks is unknown
1663 , blocks_unknown (true)
1667 struct space_and_path_ascending_cmp {
1668 bool operator() (space_and_path a, space_and_path b) {
1669 if (a.blocks_unknown != b.blocks_unknown) {
1670 return !a.blocks_unknown;
1672 return a.blocks > b.blocks;
1676 void setup_raid_path (std::string path);
1678 std::vector<space_and_path> session_dirs;
1679 std::vector<space_and_path>::iterator last_rr_session_dir;
1680 uint32_t _total_free_4k_blocks;
1681 /** If this is true, _total_free_4k_blocks is not definite,
1682 as one or more of the session directories' filesystems
1683 could not report free space.
1685 bool _total_free_4k_blocks_uncertain;
1686 Glib::Threads::Mutex space_lock;
1688 bool no_questions_about_missing_files;
1690 std::string get_best_session_directory_for_new_audio ();
1692 mutable gint _playback_load;
1693 mutable gint _capture_load;
1697 SerializedRCUManager<BundleList> _bundles;
1698 XMLNode* _bundle_xml_node;
1699 int load_bundles (XMLNode const &);
1701 UndoHistory _history;
1702 /** current undo transaction, or 0 */
1703 UndoTransaction* _current_trans;
1704 /** GQuarks to describe the reversible commands that are currently in progress.
1705 * These may be nested, in which case more recently-started commands are toward
1706 * the front of the list.
1708 std::list<GQuark> _current_trans_quarks;
1710 int backend_sync_callback (TransportState, framepos_t);
1712 void process_rtop (SessionEvent*);
1714 void update_latency (bool playback);
1716 XMLNode& state(bool);
1719 typedef std::list<Click*> Clicks;
1722 boost::shared_ptr<IO> _click_io;
1723 boost::shared_ptr<Amp> _click_gain;
1725 Sample* click_emphasis_data;
1726 framecnt_t click_length;
1727 framecnt_t click_emphasis_length;
1728 mutable Glib::Threads::RWLock click_lock;
1730 static const Sample default_click[];
1731 static const framecnt_t default_click_length;
1732 static const Sample default_click_emphasis[];
1733 static const framecnt_t default_click_emphasis_length;
1736 framepos_t _clicks_cleared;
1737 void setup_click_sounds (int which);
1738 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1739 void clear_clicks ();
1740 void click (framepos_t start, framecnt_t nframes);
1742 std::vector<Route*> master_outs;
1744 /* range playback */
1746 std::list<AudioRange> current_audio_range;
1748 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1749 void unset_play_range ();
1751 /* temporary hacks to allow selection to be pushed from GUI into backend
1752 Whenever we move the selection object into libardour, these will go away.
1754 Evoral::Range<framepos_t> _range_selection;
1755 Evoral::Range<framepos_t> _object_selection;
1760 boost::shared_ptr<Route> _master_out;
1761 boost::shared_ptr<Route> _monitor_out;
1763 void auto_connect_master_bus ();
1765 /* Windows VST support */
1767 long _windows_vst_callback (
1776 int find_all_sources (std::string path, std::set<std::string>& result);
1777 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1779 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1780 Glib::Threads::Mutex controllables_lock;
1781 Controllables controllables;
1783 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1785 void reset_native_file_format();
1786 bool first_file_data_format_reset;
1787 bool first_file_header_format_reset;
1789 void config_changed (std::string, bool);
1791 XMLNode& get_control_protocol_state ();
1793 void set_history_depth (uint32_t depth);
1795 static bool _disable_all_loaded_plugins;
1796 static bool _bypass_all_loaded_plugins;
1798 mutable bool have_looped; ///< Used in ::audible_frame(*)
1800 void update_route_record_state ();
1801 gint _have_rec_enabled_track;
1802 gint _have_rec_disabled_track;
1804 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1806 /* realtime "apply to set of routes" operations */
1807 template<typename T> SessionEvent*
1808 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1809 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1810 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1811 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1812 ev->rt_return = after;
1813 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1818 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1819 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1820 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition /* ignored*/ );
1821 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1822 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1823 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1824 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1825 void rt_set_record_safe (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1826 void rt_set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, PBD::Controllable::GroupControlDisposition group_override);
1828 /** temporary list of Diskstreams used only during load of 2.X sessions */
1829 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1831 void set_session_range_location (framepos_t, framepos_t);
1833 void setup_midi_machine_control ();
1835 void step_edit_status_change (bool);
1836 uint32_t _step_editors;
1838 /** true if timecode transmission by the transport is suspended, otherwise false */
1839 mutable gint _suspend_timecode_transmission;
1841 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1843 void start_time_changed (framepos_t);
1844 void end_time_changed (framepos_t);
1846 void set_track_monitor_input_status (bool);
1847 framepos_t compute_stop_limit () const;
1849 boost::shared_ptr<Speakers> _speakers;
1850 void load_nested_sources (const XMLNode& node);
1852 /** The directed graph of routes that is currently being used for audio processing
1853 and solo/mute computations.
1855 GraphEdges _current_route_graph;
1857 uint32_t next_control_id () const;
1858 int32_t _order_hint;
1859 bool ignore_route_processor_changes;
1861 MidiClockTicker* midi_clock;
1863 boost::shared_ptr<IO> _ltc_input;
1864 boost::shared_ptr<IO> _ltc_output;
1866 /* Scene Changing */
1867 SceneChanger* _scene_changer;
1869 /* persistent, non-track related MIDI ports */
1870 MidiPortManager* _midi_ports;
1871 MIDI::MachineControl* _mmc;
1874 void setup_click ();
1875 void setup_click_state (const XMLNode*);
1876 void setup_bundles ();
1878 void save_as_bring_callback (uint32_t, uint32_t, std::string);
1880 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
1881 static const uint32_t session_end_shift;
1883 std::string _template_state_dir;
1887 } // namespace ARDOUR
1889 #endif /* __ardour_session_h__ */