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/Range.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 /** Ardour Session */
165 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
174 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
175 the bus profile can be null if no master out bus is required.
178 Session (AudioEngine&,
179 const std::string& fullpath,
180 const std::string& snapshot_name,
181 BusProfile* bus_profile = 0,
182 std::string mix_template = "");
186 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format);
187 static std::string get_snapshot_from_instant (const std::string& session_dir);
189 std::string path() const { return _path; }
190 std::string name() const { return _name; }
191 std::string snap_name() const { return _current_snapshot_name; }
192 std::string raid_path () const;
193 bool path_is_within_session (const std::string&);
195 bool writable() const { return _writable; }
198 bool dirty() const { return _state_of_the_state & Dirty; }
199 void set_deletion_in_progress ();
200 void clear_deletion_in_progress ();
201 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
202 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
203 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
204 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
206 PBD::Signal0<void> DirtyChanged;
208 PBD::Signal1<void, bool> RouteAddedOrRemoved;
210 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
212 static PBD::Signal1<void,std::string> Dialog;
214 PBD::Signal0<void> BatchUpdateStart;
215 PBD::Signal0<void> BatchUpdateEnd;
217 int ensure_subdirs ();
219 std::string automation_dir () const; ///< Automation data
220 std::string analysis_dir () const; ///< Analysis data
221 std::string plugins_dir () const; ///< Plugin state
222 std::string externals_dir () const; ///< Links to external files
224 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
226 bool audio_source_name_is_unique (const std::string& name);
227 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);
228 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
229 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
230 std::string new_midi_source_path (const std::string&);
231 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path, const std::string& name, PlaylistDisposition pd = NewPlaylist);
232 RouteList new_route_from_template (uint32_t how_many, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
233 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path, uint32_t channels);
235 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
237 void process (pframes_t nframes);
239 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
240 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
241 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
242 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
243 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
245 bool have_rec_enabled_track () const;
246 bool have_rec_disabled_track () const;
248 bool have_captured() const { return _have_captured; }
250 void refill_all_track_buffers ();
251 Butler* butler() { return _butler; }
252 void butler_transport_work ();
254 void refresh_disk_space ();
256 int load_diskstreams_2X (XMLNode const &, int);
258 int load_routes (const XMLNode&, int);
259 boost::shared_ptr<RouteList> get_routes() const {
260 return routes.reader ();
263 boost::shared_ptr<RouteList> get_tracks() const;
264 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
265 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
267 uint32_t nroutes() const { return routes.reader()->size(); }
268 uint32_t ntracks () const;
269 uint32_t nbusses () const;
271 boost::shared_ptr<BundleList> bundles () {
272 return _bundles.reader ();
275 struct LIBARDOUR_API RoutePublicOrderSorter {
276 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
279 void set_order_hint (int32_t order_hint) {_order_hint = order_hint;};
280 void notify_remote_id_change ();
281 void sync_order_keys ();
283 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
284 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
285 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
287 static char session_name_is_legal (const std::string&);
288 bool io_name_is_legal (const std::string&);
289 boost::shared_ptr<Route> route_by_name (std::string);
290 boost::shared_ptr<Route> route_by_id (PBD::ID);
291 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
292 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt);
293 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID);
294 void routes_using_input_from (const std::string& str, RouteList& rl);
296 bool route_name_unique (std::string) const;
297 bool route_name_internal (std::string) const;
299 uint32_t track_number_decimals () const {
300 return _track_number_decimals;
303 bool get_record_enabled() const {
304 return (record_status () >= Enabled);
307 RecordState record_status() const {
308 return (RecordState) g_atomic_int_get (&_record_status);
311 bool actively_recording () const {
312 return record_status() == Recording;
315 bool record_enabling_legal () const;
316 void maybe_enable_record ();
317 void disable_record (bool rt_context, bool force = false);
318 void step_back_from_record ();
320 void set_all_tracks_record_enabled(bool);
322 void maybe_write_autosave ();
324 /* Emitted when all i/o connections are complete */
326 PBD::Signal0<void> IOConnectionsComplete;
328 /* Timecode status signals */
329 PBD::Signal1<void, bool> MTCSyncStateChanged;
330 PBD::Signal1<void, bool> LTCSyncStateChanged;
332 /* Record status signals */
334 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
335 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
336 from the previous signal and session state.
338 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
340 /* Emited when session is loaded */
341 PBD::Signal0<void> SessionLoaded;
343 /* Transport mechanism signals */
345 /** Emitted on the following changes in transport state:
346 * - stop (from the butler thread)
347 * - change in whether or not we are looping (from the process thread)
348 * - change in the play range (from the process thread)
349 * - start (from the process thread)
352 PBD::Signal0<void> TransportStateChange;
354 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
355 PBD::Signal1<void,framepos_t> Xrun;
356 PBD::Signal0<void> TransportLooped;
358 /** emitted when a locate has occurred */
359 PBD::Signal0<void> Located;
361 PBD::Signal1<void,RouteList&> RouteAdded;
362 /** Emitted when a property of one of our route groups changes.
363 * The parameter is the RouteGroup that has changed.
365 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
366 /** Emitted when a route is added to one of our route groups.
367 * First parameter is the RouteGroup, second is the route.
369 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
370 /** Emitted when a route is removed from one of our route groups.
371 * First parameter is the RouteGroup, second is the route.
373 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
375 /* Step Editing status changed */
376 PBD::Signal1<void,bool> StepEditStatusChange;
378 /* Timecode state signals */
379 PBD::Signal0<void> MtcOrLtcInputPortChanged;
381 void queue_event (SessionEvent*);
383 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
384 void request_bounded_roll (framepos_t start, framepos_t end);
385 void request_stop (bool abort = false, bool clear_state = false);
386 void request_locate (framepos_t frame, bool with_roll = false);
388 void request_play_loop (bool yn, bool leave_rolling = false);
389 bool get_play_loop () const { return play_loop; }
391 framepos_t last_transport_start () const { return _last_roll_location; }
394 void use_rf_shuttle_speed ();
395 void allow_auto_play (bool yn);
396 void request_transport_speed (double speed, bool as_default = true);
397 void request_transport_speed_nonzero (double, bool as_default = true);
398 void request_overwrite_buffer (Track *);
399 void adjust_playback_buffering();
400 void adjust_capture_buffering();
401 void request_track_speed (Track *, double speed);
402 void request_input_change_handling ();
404 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
405 bool transport_locked () const;
409 framepos_t current_end_frame () const;
410 framepos_t current_start_frame () const;
411 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
412 framecnt_t frame_rate () const { return _current_frame_rate; }
413 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
414 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
415 framecnt_t frames_per_hour () const { return _frames_per_hour; }
417 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
418 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
420 MIDI::byte get_mtc_timecode_bits() const {
421 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
424 double timecode_frames_per_second() const;
425 bool timecode_drop_frames() const;
429 Locations *locations() { return _locations; }
431 PBD::Signal1<void,Location*> auto_loop_location_changed;
432 PBD::Signal1<void,Location*> auto_punch_location_changed;
433 PBD::Signal0<void> locations_modified;
435 void set_auto_punch_location (Location *);
436 void set_auto_loop_location (Location *);
437 void set_session_extents (framepos_t start, framepos_t end);
438 int location_name(std::string& result, std::string base = std::string(""));
440 pframes_t get_block_size() const { return current_block_size; }
441 framecnt_t worst_output_latency () const { return _worst_output_latency; }
442 framecnt_t worst_input_latency () const { return _worst_input_latency; }
443 framecnt_t worst_track_latency () const { return _worst_track_latency; }
444 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
447 std::string new_parent_folder; /* parent folder where new session folder will be created */
448 std::string new_name; /* name of newly saved session */
449 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
450 bool include_media; /* true if the newly saved session should contain references to media */
451 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
452 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
454 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
456 /* emitted as we make progress. 3 arguments passed to signal
459 * 1: percentage complete measured as a fraction (0-1.0) of
460 * total data copying done.
461 * 2: number of files copied so far
462 * 3: total number of files to copy
464 * Handler should return true for save-as to continue, or false
465 * to stop (and remove all evidence of partial save-as).
467 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
469 /* if save_as() returns non-zero, this string will indicate the reason why.
471 std::string failure_message;
474 int save_as (SaveAs&);
475 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
476 int restore_state (std::string snapshot_name);
477 int save_template (std::string template_name, bool replace_existing = false);
478 int save_history (std::string snapshot_name = "");
479 int restore_history (std::string snapshot_name);
480 void remove_state (std::string snapshot_name);
481 void rename_state (std::string old_name, std::string new_name);
482 void remove_pending_capture_state ();
483 int rename (const std::string&);
484 bool get_nsm_state () const { return _under_nsm_control; }
485 void set_nsm_state (bool state) { _under_nsm_control = state; }
486 bool save_default_options ();
488 PBD::Signal1<void,std::string> StateSaved;
489 PBD::Signal0<void> StateReady;
491 /* emitted when session needs to be saved due to some internal
492 * event or condition (i.e. not in response to a user request).
494 * Only one object should
495 * connect to this signal and take responsibility.
497 * Argument is the snapshot name to use when saving.
499 PBD::Signal1<void,std::string> SaveSessionRequested;
501 /* emitted during a session save to allow other entities to add state, via
502 * extra XML, to the session state
504 PBD::Signal0<void> SessionSaveUnderway;
506 std::vector<std::string> possible_states() const;
507 static std::vector<std::string> possible_states (std::string path);
509 XMLNode& get_state();
510 int set_state(const XMLNode& node, int version); // not idempotent
511 XMLNode& get_template();
513 /// The instant xml file is written to the session directory
514 void add_instant_xml (XMLNode&, bool write_to_config = true);
515 XMLNode* instant_xml (const std::string& str);
517 enum StateOfTheState {
522 InitialConnecting = 0x8,
528 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
530 class StateProtector {
532 StateProtector (Session* s) : _session (s) {
533 g_atomic_int_inc (&s->_suspend_save);
536 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
537 while (_session->_save_queued) {
538 _session->_save_queued = false;
539 _session->save_state ("");
547 void add_route_group (RouteGroup *);
548 void remove_route_group (RouteGroup&);
549 void reorder_route_groups (std::list<RouteGroup*>);
551 RouteGroup* route_group_by_name (std::string);
552 RouteGroup& all_route_group() const;
554 PBD::Signal1<void,RouteGroup*> route_group_added;
555 PBD::Signal0<void> route_group_removed;
556 PBD::Signal0<void> route_groups_reordered;
558 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
559 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
564 std::list<RouteGroup*> const & route_groups () const {
565 return _route_groups;
568 /* fundamental operations. duh. */
570 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
573 TrackMode mode = Normal,
574 RouteGroup* route_group = 0,
575 uint32_t how_many = 1,
576 std::string name_template = ""
579 RouteList new_audio_route (
580 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
583 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
584 const ChanCount& input, const ChanCount& output,
585 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
586 TrackMode mode = Normal,
587 RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
590 RouteList new_midi_route (RouteGroup* route_group, uint32_t how_many, std::string name_template = "", boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>());
592 void remove_routes (boost::shared_ptr<RouteList>);
593 void remove_route (boost::shared_ptr<Route>);
595 void resort_routes ();
596 void resort_routes_using (boost::shared_ptr<RouteList>);
598 AudioEngine & engine() { return _engine; }
599 AudioEngine const & engine () const { return _engine; }
601 static std::string default_track_name_pattern (DataType);
605 framepos_t transport_frame () const {return _transport_frame; }
606 framepos_t record_location () const {return _last_record_location; }
607 framepos_t audible_frame () const;
608 framepos_t requested_return_frame() const { return _requested_return_frame; }
609 void set_requested_return_frame(framepos_t return_to);
623 void sync_time_vars();
625 void bbt_time (framepos_t when, Timecode::BBT_Time&);
626 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
627 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
628 void timecode_time (Timecode::Time &);
629 void timecode_time (framepos_t when, Timecode::Time&);
630 void timecode_time_subframes (framepos_t when, Timecode::Time&);
632 void timecode_duration (framecnt_t, Timecode::Time&) const;
633 void timecode_duration_string (char *, size_t len, framecnt_t) const;
635 framecnt_t convert_to_frames (AnyTime const & position);
636 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
638 static PBD::Signal1<void, framepos_t> StartTimeChanged;
639 static PBD::Signal1<void, framepos_t> EndTimeChanged;
641 void request_sync_source (Slave*);
642 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
643 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
644 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
646 double transport_speed() const { return _transport_speed; }
647 bool transport_stopped() const { return _transport_speed == 0.0f; }
648 bool transport_rolling() const { return _transport_speed != 0.0f; }
650 bool silent () { return _silent; }
652 TempoMap& tempo_map() { return *_tempo_map; }
653 const TempoMap& tempo_map() const { return *_tempo_map; }
655 unsigned int get_xrun_count () const {return _xrun_count; }
656 void reset_xrun_count () {_xrun_count = 0; }
660 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
662 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
663 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
664 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
666 /* source management */
668 void import_files (ImportStatus&);
669 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
670 std::string build_tmp_convert_name (std::string file);
672 boost::shared_ptr<ExportHandler> get_export_handler ();
673 boost::shared_ptr<ExportStatus> get_export_status ();
675 int start_audio_export (framepos_t position);
677 PBD::Signal1<int, framecnt_t> ProcessExport;
678 static PBD::Signal2<void,std::string, std::string> Exported;
680 void add_source (boost::shared_ptr<Source>);
681 void remove_source (boost::weak_ptr<Source>);
683 void cleanup_regions();
684 bool can_cleanup_peakfiles () const;
685 int cleanup_peakfiles ();
686 int cleanup_sources (CleanupReport&);
687 int cleanup_trash_sources (CleanupReport&);
689 int destroy_sources (std::list<boost::shared_ptr<Source> >);
691 int remove_last_capture ();
693 /** handlers should return 0 for "everything OK", and any other value for
694 * "cannot setup audioengine".
696 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
698 /** handlers should return -1 for "stop cleanup",
699 0 for "yes, delete this playlist",
700 1 for "no, don't delete this playlist".
702 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
704 /** handlers should return 0 for "ignore the rate mismatch",
705 !0 for "do not use this session"
707 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
709 /** handlers should return !0 for use pending state, 0 for ignore it.
711 static PBD::Signal0<int> AskAboutPendingState;
713 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
714 size_t, std::string const &, uint32_t, bool destructive);
716 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
717 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
719 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
720 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
721 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
722 uint32_t count_sources_by_origin (const std::string&);
724 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
726 /* Curves and AutomationLists (TODO when they go away) */
727 void add_automation_list(AutomationList*);
731 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
732 void audition_playlist ();
733 void audition_region (boost::shared_ptr<Region>);
734 void cancel_audition ();
735 bool is_auditioning () const;
737 PBD::Signal1<void,bool> AuditionActive;
740 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
741 void unregister_lua_function (const std::string& name);
742 std::vector<std::string> registered_lua_functions ();
743 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
744 void scripts_changed (); // called from lua, updates _n_lua_scripts
746 /* flattening stuff */
748 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
749 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
750 boost::shared_ptr<Processor> endpoint,
751 bool include_endpoint, bool for_export, bool for_freeze);
752 int freeze_all (InterThreadInfo&);
754 /* session-wide solo/mute/rec-enable */
756 bool soloing() const { return _non_soloed_outs_muted; }
757 bool listening() const { return _listen_cnt > 0; }
758 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
760 static const SessionEvent::RTeventCallback rt_cleanup;
762 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
763 void clear_all_solo_state (boost::shared_ptr<RouteList>);
764 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
765 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
766 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
767 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
768 void set_record_safe (boost::shared_ptr<RouteList>, bool yn, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
769 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
770 void set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
771 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
773 PBD::Signal1<void,bool> SoloActive;
774 PBD::Signal0<void> SoloChanged;
775 PBD::Signal0<void> IsolatedChanged;
776 PBD::Signal0<void> MonitorChanged;
778 PBD::Signal0<void> session_routes_reconnected;
780 /* monitor/master out */
782 void add_monitor_section ();
783 void reset_monitor_section ();
784 void remove_monitor_section ();
785 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
787 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
788 boost::shared_ptr<Route> master_out() const { return _master_out; }
790 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
791 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
792 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
793 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
794 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
795 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
796 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
798 static void set_disable_all_loaded_plugins (bool yn) {
799 _disable_all_loaded_plugins = yn;
801 static bool get_disable_all_loaded_plugins() {
802 return _disable_all_loaded_plugins;
804 static void set_bypass_all_loaded_plugins (bool yn) {
805 _bypass_all_loaded_plugins = yn;
807 static bool get_bypass_all_loaded_plugins() {
808 return _bypass_all_loaded_plugins;
811 uint32_t next_send_id();
812 uint32_t next_aux_send_id();
813 uint32_t next_return_id();
814 uint32_t next_insert_id();
815 void mark_send_id (uint32_t);
816 void mark_aux_send_id (uint32_t);
817 void mark_return_id (uint32_t);
818 void mark_insert_id (uint32_t);
819 void unmark_send_id (uint32_t);
820 void unmark_aux_send_id (uint32_t);
821 void unmark_return_id (uint32_t);
822 void unmark_insert_id (uint32_t);
824 /* s/w "RAID" management */
826 boost::optional<framecnt_t> available_capture_duration();
830 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
831 void remove_bundle (boost::shared_ptr<Bundle>);
832 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
834 PBD::Signal0<void> BundleAddedOrRemoved;
838 /* History (for editors, mixers, UIs etc.) */
840 /** Undo some transactions.
841 * @param n Number of transactions to undo.
843 void undo (uint32_t n) {
847 void redo (uint32_t n) {
851 UndoHistory& history() { return _history; }
853 uint32_t undo_depth() const { return _history.undo_depth(); }
854 uint32_t redo_depth() const { return _history.redo_depth(); }
855 std::string next_undo() const { return _history.next_undo(); }
856 std::string next_redo() const { return _history.next_redo(); }
858 void begin_reversible_command (const std::string& cmd_name);
859 void begin_reversible_command (GQuark);
860 void abort_reversible_command ();
861 void commit_reversible_command (Command* cmd = 0);
863 void add_command (Command *const cmd);
865 /** @return The list of operations that are currently in progress */
866 std::list<GQuark> const & current_operations () {
867 return _current_trans_quarks;
870 bool operation_in_progress (GQuark) const;
872 void add_commands (std::vector<Command*> const & cmds);
874 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
876 // these commands are implemented in libs/ardour/session_command.cc
877 Command* memento_command_factory(XMLNode* n);
878 Command* stateful_diff_command_factory (XMLNode *);
879 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
883 boost::shared_ptr<IO> click_io() { return _click_io; }
884 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
886 /* disk, buffer loads */
888 uint32_t playback_load ();
889 uint32_t capture_load ();
893 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
894 void request_cancel_play_range ();
895 bool get_play_range () const { return _play_range; }
897 void maybe_update_session_range (framepos_t, framepos_t);
899 /* temporary hacks to allow selection to be pushed from GUI into backend.
900 Whenever we move the selection object into libardour, these will go away.
902 void set_range_selection (framepos_t start, framepos_t end);
903 void set_object_selection (framepos_t start, framepos_t end);
904 void clear_range_selection ();
905 void clear_object_selection ();
907 /* buffers for gain and pan */
909 gain_t* gain_automation_buffer () const;
910 gain_t* trim_automation_buffer () const;
911 gain_t* send_gain_automation_buffer () const;
912 pan_t** pan_automation_buffer () const;
914 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
918 static int vst_current_loading_id;
919 static const char* vst_can_do_strings[];
920 static const int vst_can_do_string_count;
922 static intptr_t vst_callback (
931 static PBD::Signal0<void> SendFeedback;
935 boost::shared_ptr<Speakers> get_speakers ();
939 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
941 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
942 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
944 void add_controllable (boost::shared_ptr<PBD::Controllable>);
945 void remove_controllable (PBD::Controllable*);
947 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
949 SessionConfiguration config;
951 bool exporting () const {
955 bool bounce_processing() const {
956 return _bounce_processing_active;
959 /* this is a private enum, but setup_enum_writer() needs it,
960 and i can't find a way to give that function
964 enum PostTransportWork {
965 PostTransportStop = 0x1,
966 PostTransportDuration = 0x2,
967 PostTransportLocate = 0x4,
968 PostTransportRoll = 0x8,
969 PostTransportAbort = 0x10,
970 PostTransportOverWrite = 0x20,
971 PostTransportSpeed = 0x40,
972 PostTransportAudition = 0x80,
973 PostTransportReverse = 0x100,
974 PostTransportInputChange = 0x200,
975 PostTransportCurveRealloc = 0x400,
976 PostTransportClearSubstate = 0x800,
977 PostTransportAdjustPlaybackBuffering = 0x1000,
978 PostTransportAdjustCaptureBuffering = 0x2000
987 SlaveState slave_state() const { return _slave_state; }
988 Slave* slave() const { return _slave; }
990 boost::shared_ptr<SessionPlaylists> playlists;
992 void send_mmc_locate (framepos_t);
993 void queue_full_time_code () { _send_timecode_update = true; }
994 void queue_song_position_pointer () { /* currently does nothing */ }
996 bool step_editing() const { return (_step_editors > 0); }
998 void request_suspend_timecode_transmission ();
999 void request_resume_timecode_transmission ();
1000 bool timecode_transmission_suspended () const;
1002 std::vector<std::string> source_search_path(DataType) const;
1003 void ensure_search_path_includes (const std::string& path, DataType type);
1004 void remove_dir_from_search_path (const std::string& path, DataType type);
1006 std::list<std::string> unknown_processors () const;
1008 /** Emitted when a feedback cycle has been detected within Ardour's signal
1009 processing path. Until it is fixed (by the user) some (unspecified)
1010 routes will not be run.
1012 static PBD::Signal0<void> FeedbackDetected;
1014 /** Emitted when a graph sort has successfully completed, which means
1015 that it has no feedback cycles.
1017 static PBD::Signal0<void> SuccessfulGraphSort;
1019 /* handlers can return an integer value:
1020 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1021 to modify the search path and we should try to find it again.
1022 1: quit entire session load
1023 2: as 0, but don't ask about other missing files
1024 3: don't ask about other missing files, and just mark this one missing
1025 -1: just mark this one missing
1026 any other value: as -1
1028 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1030 /** Emitted when the session wants Ardour to quit */
1031 static PBD::Signal0<void> Quit;
1033 /** Emitted when Ardour is asked to load a session in an older session
1034 * format, and makes a backup copy.
1036 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1038 SceneChanger* scene_changer() const { return _scene_changer; }
1040 /* asynchronous MIDI control ports */
1042 boost::shared_ptr<Port> midi_input_port () const;
1043 boost::shared_ptr<Port> midi_output_port () const;
1044 boost::shared_ptr<Port> mmc_output_port () const;
1045 boost::shared_ptr<Port> mmc_input_port () const;
1046 boost::shared_ptr<Port> scene_input_port () const;
1047 boost::shared_ptr<Port> scene_output_port () const;
1049 /* synchronous MIDI ports used for synchronization */
1051 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1052 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1053 boost::shared_ptr<MidiPort> mtc_output_port () const;
1054 boost::shared_ptr<MidiPort> mtc_input_port () const;
1055 boost::shared_ptr<Port> ltc_input_port() const;
1056 boost::shared_ptr<Port> ltc_output_port() const;
1058 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1059 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1061 MIDI::MachineControl& mmc() { return *_mmc; }
1063 void reconnect_midi_scene_ports (bool);
1064 void reconnect_mtc_ports ();
1065 void reconnect_mmc_ports (bool);
1067 void reconnect_ltc_input ();
1068 void reconnect_ltc_output ();
1071 friend class AudioEngine;
1072 void set_block_size (pframes_t nframes);
1073 void set_frame_rate (framecnt_t nframes);
1074 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1078 void schedule_curve_reallocation ();
1079 void update_latency_compensation (bool force = false);
1082 int create (const std::string& mix_template, BusProfile*);
1086 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
1087 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
1088 StopPendingCapture = 0x4,
1089 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
1090 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
1091 PendingLocate = 0x20,
1094 /* stuff used in process() should be close together to
1098 typedef void (Session::*process_function_type)(pframes_t);
1100 AudioEngine& _engine;
1101 mutable gint processing_prohibited;
1102 process_function_type process_function;
1103 process_function_type last_process_function;
1104 bool _bounce_processing_active;
1105 bool waiting_for_sync_offset;
1106 framecnt_t _base_frame_rate;
1107 framecnt_t _current_frame_rate; //this includes video pullup offset
1108 framecnt_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1109 int transport_sub_state;
1110 mutable gint _record_status;
1111 framepos_t _transport_frame;
1112 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1116 // varispeed playback
1117 double _transport_speed;
1118 double _default_transport_speed;
1119 double _last_transport_speed;
1120 double _signalled_varispeed;
1121 double _target_transport_speed;
1122 CubicInterpolation interpolation;
1124 bool auto_play_legal;
1125 framepos_t _last_slave_transport_frame;
1126 framecnt_t maximum_output_latency;
1127 framepos_t _requested_return_frame;
1128 pframes_t current_block_size;
1129 framecnt_t _worst_output_latency;
1130 framecnt_t _worst_input_latency;
1131 framecnt_t _worst_track_latency;
1132 bool _have_captured;
1133 bool _non_soloed_outs_muted;
1135 uint32_t _listen_cnt;
1136 uint32_t _solo_isolated_cnt;
1139 bool _under_nsm_control;
1140 unsigned int _xrun_count;
1142 void mtc_status_changed (bool);
1143 PBD::ScopedConnection mtc_status_connection;
1144 void ltc_status_changed (bool);
1145 PBD::ScopedConnection ltc_status_connection;
1147 void initialize_latencies ();
1148 void set_worst_io_latencies ();
1149 void set_worst_playback_latency ();
1150 void set_worst_capture_latency ();
1151 void set_worst_io_latencies_x (IOChange, void *) {
1152 set_worst_io_latencies ();
1154 void post_capture_latency ();
1155 void post_playback_latency ();
1157 void update_latency_compensation_proxy (void* ignored);
1159 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1161 void process_scrub (pframes_t);
1162 void process_without_events (pframes_t);
1163 void process_with_events (pframes_t);
1164 void process_audition (pframes_t);
1165 int process_export (pframes_t);
1166 int process_export_fw (pframes_t);
1168 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1169 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1170 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1172 static const framecnt_t bounce_chunk_size;
1174 /* slave tracking */
1176 static const int delta_accumulator_size = 25;
1177 int delta_accumulator_cnt;
1178 int32_t delta_accumulator[delta_accumulator_size];
1179 int32_t average_slave_delta;
1181 bool have_first_delta_accumulator;
1183 SlaveState _slave_state;
1186 framepos_t slave_wait_end;
1188 void reset_slave_state ();
1189 bool follow_slave (pframes_t);
1190 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1191 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1192 void follow_slave_silently (pframes_t nframes, float slave_speed);
1194 void switch_to_sync_source (SyncSource); /* !RT context */
1195 void drop_sync_source (); /* !RT context */
1196 void use_sync_source (Slave*); /* RT context */
1198 bool post_export_sync;
1199 framepos_t post_export_position;
1202 bool _export_rolling;
1203 framepos_t _export_preroll;
1205 boost::shared_ptr<ExportHandler> export_handler;
1206 boost::shared_ptr<ExportStatus> export_status;
1209 int stop_audio_export ();
1210 void finalize_audio_export ();
1211 void finalize_export_internal (bool stop_freewheel);
1212 bool _pre_export_mmc_enabled;
1214 PBD::ScopedConnection export_freewheel_connection;
1216 void get_track_statistics ();
1217 int process_routes (pframes_t, bool& need_butler);
1218 int silent_process_routes (pframes_t, bool& need_butler);
1220 /** @return 1 if there is a pending declick fade-in,
1221 -1 if there is a pending declick fade-out,
1222 0 if there is no pending declick.
1224 int get_transport_declick_required () {
1225 if (transport_sub_state & PendingDeclickIn) {
1226 transport_sub_state &= ~PendingDeclickIn;
1228 } else if (transport_sub_state & PendingDeclickOut) {
1229 /* XXX: not entirely sure why we don't clear this */
1231 } else if (transport_sub_state & PendingLoopDeclickOut) {
1232 /* Return the declick out first ... */
1233 transport_sub_state &= ~PendingLoopDeclickOut;
1235 } else if (transport_sub_state & PendingLoopDeclickIn) {
1236 /* ... then the declick in on the next call */
1237 transport_sub_state &= ~PendingLoopDeclickIn;
1244 bool maybe_stop (framepos_t limit);
1245 bool maybe_sync_start (pframes_t &);
1247 void check_declick_out ();
1253 /** Number of process frames since the last MTC output (when sending MTC); used to
1254 * know when to send full MTC messages every so often.
1256 pframes_t _pframes_since_last_mtc;
1257 bool session_midi_feedback;
1260 framepos_t last_loopend;
1262 boost::scoped_ptr<SessionDirectory> _session_dir;
1265 void graph_reordered ();
1267 /** current snapshot name, without the .ardour suffix */
1268 void set_snapshot_name (const std::string &);
1269 void save_snapshot_name (const std::string &);
1270 std::string _current_snapshot_name;
1272 XMLTree* state_tree;
1273 bool state_was_pending;
1274 StateOfTheState _state_of_the_state;
1276 friend class StateProtector;
1277 gint _suspend_save; /* atomic */
1278 volatile bool _save_queued;
1279 Glib::Threads::Mutex save_state_lock;
1280 Glib::Threads::Mutex peak_cleanup_lock;
1282 int load_options (const XMLNode&);
1283 int load_state (std::string snapshot_name);
1285 framepos_t _last_roll_location;
1286 /** the session frame time at which we last rolled, located, or changed transport direction */
1287 framepos_t _last_roll_or_reversal_location;
1288 framepos_t _last_record_location;
1290 bool pending_locate_roll;
1291 framepos_t pending_locate_frame;
1292 bool pending_locate_flush;
1294 bool pending_auto_loop;
1296 PBD::ReallocPool _mempool;
1298 Glib::Threads::Mutex lua_lock;
1299 luabridge::LuaRef * _lua_run;
1300 luabridge::LuaRef * _lua_add;
1301 luabridge::LuaRef * _lua_del;
1302 luabridge::LuaRef * _lua_list;
1303 luabridge::LuaRef * _lua_load;
1304 luabridge::LuaRef * _lua_save;
1305 luabridge::LuaRef * _lua_cleanup;
1306 uint32_t _n_lua_scripts;
1309 void try_run_lua (pframes_t);
1313 static const PostTransportWork ProcessCannotProceedMask =
1315 PostTransportInputChange|
1317 PostTransportReverse|
1318 PostTransportCurveRealloc|
1319 PostTransportAudition|
1320 PostTransportLocate|
1322 PostTransportClearSubstate);
1324 gint _post_transport_work; /* accessed only atomic ops */
1325 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1326 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1327 void add_post_transport_work (PostTransportWork ptw);
1329 void schedule_playback_buffering_adjustment ();
1330 void schedule_capture_buffering_adjustment ();
1332 uint32_t cumulative_rf_motion;
1335 void set_rf_speed (float speed);
1336 void reset_rf_scale (framecnt_t frames_moved);
1338 Locations* _locations;
1339 void location_added (Location*);
1340 void location_removed (Location*);
1341 void locations_changed ();
1342 void _locations_changed (const Locations::LocationList&);
1344 void update_skips (Location*, bool consolidate);
1345 void update_marks (Location* loc);
1346 void consolidate_skips (Location*);
1347 void sync_locations_to_skips ();
1348 void _sync_locations_to_skips ();
1350 PBD::ScopedConnectionList skip_update_connections;
1351 bool _ignore_skips_updates;
1353 PBD::ScopedConnectionList punch_connections;
1354 void auto_punch_start_changed (Location *);
1355 void auto_punch_end_changed (Location *);
1356 void auto_punch_changed (Location *);
1358 PBD::ScopedConnectionList loop_connections;
1359 void auto_loop_changed (Location *);
1360 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1362 int ensure_engine (uint32_t desired_sample_rate);
1363 void pre_engine_init (std::string path);
1364 int post_engine_init ();
1365 int immediately_post_engine ();
1366 void remove_empty_sounds ();
1368 void session_loaded ();
1370 void setup_midi_control ();
1371 int midi_read (MIDI::Port *);
1373 void enable_record ();
1375 void increment_transport_position (framecnt_t val) {
1376 if (max_framepos - val < _transport_frame) {
1377 _transport_frame = max_framepos;
1379 _transport_frame += val;
1383 void decrement_transport_position (framecnt_t val) {
1384 if (val < _transport_frame) {
1385 _transport_frame -= val;
1387 _transport_frame = 0;
1391 void post_transport_motion ();
1392 static void *session_loader_thread (void *arg);
1396 /* Signal Forwarding */
1397 void emit_route_signals ();
1398 void emit_thread_run ();
1399 static void *emit_thread (void *);
1400 void emit_thread_start ();
1401 void emit_thread_terminate ();
1403 pthread_t _rt_emit_thread;
1404 bool _rt_thread_active;
1406 pthread_mutex_t _rt_emit_mutex;
1407 pthread_cond_t _rt_emit_cond;
1408 bool _rt_emit_pending;
1411 /* SessionEventManager interface */
1413 void process_event (SessionEvent*);
1414 void set_next_event ();
1415 void cleanup_event (SessionEvent*,int);
1417 /* MIDI Machine Control */
1420 void spp_continue ();
1423 void mmc_deferred_play (MIDI::MachineControl &);
1424 void mmc_stop (MIDI::MachineControl &);
1425 void mmc_step (MIDI::MachineControl &, int);
1426 void mmc_pause (MIDI::MachineControl &);
1427 void mmc_record_pause (MIDI::MachineControl &);
1428 void mmc_record_strobe (MIDI::MachineControl &);
1429 void mmc_record_exit (MIDI::MachineControl &);
1430 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1431 void mmc_fast_forward (MIDI::MachineControl &);
1432 void mmc_rewind (MIDI::MachineControl &);
1433 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1434 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1435 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1437 struct timeval last_mmc_step;
1440 typedef boost::function<bool()> MidiTimeoutCallback;
1441 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1443 MidiTimeoutList midi_timeouts;
1444 bool mmc_step_timeout ();
1445 void send_immediate_mmc (MIDI::MachineControlCommand);
1447 MIDI::byte mtc_msg[16];
1448 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1449 MIDI::byte midi_msg[16];
1450 double outbound_mtc_timecode_frame;
1451 Timecode::Time transmitting_timecode_time;
1452 int next_quarter_frame_to_send;
1454 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1455 framecnt_t _frames_per_hour;
1456 framecnt_t _timecode_frames_per_hour;
1458 /* cache the most-recently requested time conversions. This helps when we
1459 * have multiple clocks showing the same time (e.g. the transport frame) */
1460 bool last_timecode_valid;
1461 framepos_t last_timecode_when;
1462 Timecode::Time last_timecode;
1464 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1466 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1468 LTCEncoder* ltc_encoder;
1469 ltcsnd_sample_t* ltc_enc_buf;
1471 Timecode::TimecodeFormat ltc_enc_tcformat;
1472 int32_t ltc_buf_off;
1473 int32_t ltc_buf_len;
1476 int32_t ltc_enc_byte;
1477 framepos_t ltc_enc_pos;
1479 framepos_t ltc_enc_off;
1481 framepos_t ltc_prev_cycle;
1483 framepos_t ltc_timecode_offset;
1484 bool ltc_timecode_negative_offset;
1486 LatencyRange ltc_out_latency;
1488 void ltc_tx_initialize();
1489 void ltc_tx_cleanup();
1490 void ltc_tx_reset();
1491 void ltc_tx_resync_latency();
1492 void ltc_tx_recalculate_position();
1493 void ltc_tx_parse_offset();
1494 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1496 void reset_record_status ();
1498 int no_roll (pframes_t nframes);
1499 int fail_roll (pframes_t nframes);
1501 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1502 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1504 MidiControlUI* midi_control_ui;
1506 int start_midi_thread ();
1508 void set_play_loop (bool yn, double speed);
1509 void unset_play_loop ();
1510 void overwrite_some_buffers (Track *);
1511 void flush_all_inserts ();
1512 int micro_locate (framecnt_t distance);
1513 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1514 void start_locate (framepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1515 void force_locate (framepos_t frame, bool with_roll = false);
1516 void set_track_speed (Track *, double speed);
1517 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1518 void stop_transport (bool abort = false, bool clear_state = false);
1519 void start_transport ();
1520 void realtime_stop (bool abort, bool clear_state);
1521 void realtime_locate ();
1522 void non_realtime_start_scrub ();
1523 void non_realtime_set_speed ();
1524 void non_realtime_locate ();
1525 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1526 void non_realtime_overwrite (int entry_request_count, bool& finished);
1527 void post_transport ();
1528 void engine_halted ();
1529 void xrun_recovery ();
1530 void set_track_loop (bool);
1531 bool select_playhead_priority_target (framepos_t&);
1532 void follow_playhead_priority ();
1534 /* These are synchronous and so can only be called from within the process
1538 int send_full_time_code (framepos_t, pframes_t nframes);
1539 void send_song_position_pointer (framepos_t);
1541 TempoMap *_tempo_map;
1542 void tempo_map_changed (const PBD::PropertyChange&);
1544 /* edit/mix groups */
1546 int load_route_groups (const XMLNode&, int);
1548 std::list<RouteGroup *> _route_groups;
1549 RouteGroup* _all_route_group;
1553 boost::shared_ptr<Graph> _process_graph;
1555 SerializedRCUManager<RouteList> routes;
1557 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save);
1558 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect);
1559 bool _adding_routes_in_progress;
1560 bool _reconnecting_routes_in_progress;
1561 bool _route_deletion_in_progress;
1563 uint32_t destructive_index;
1565 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1566 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1568 void route_processors_changed (RouteProcessorChange);
1570 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1571 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1572 void auto_connect_route (boost::shared_ptr<Route> route, ChanCount& existing_inputs, ChanCount& existing_outputs,
1573 bool with_lock, bool connect_inputs = true,
1574 ChanCount input_start = ChanCount (), ChanCount output_start = ChanCount ());
1575 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1577 /* track numbering */
1579 void reassign_track_numbers ();
1580 uint32_t _track_number_decimals;
1584 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1585 void route_mute_changed ();
1586 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1587 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1588 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1590 void listen_position_changed ();
1591 void solo_control_mode_changed ();
1593 /* REGION MANAGEMENT */
1595 mutable Glib::Threads::Mutex region_lock;
1597 int load_regions (const XMLNode& node);
1598 int load_compounds (const XMLNode& node);
1600 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1601 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1602 void route_group_property_changed (RouteGroup *);
1606 mutable Glib::Threads::Mutex source_lock;
1609 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1612 void reset_write_sources (bool mark_write_complete, bool force = false);
1617 int load_sources (const XMLNode& node);
1618 XMLNode& get_sources_as_xml ();
1620 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1624 void remove_playlist (boost::weak_ptr<Playlist>);
1625 void track_playlist_changed (boost::weak_ptr<Track>);
1626 void playlist_region_added (boost::weak_ptr<Region>);
1627 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1628 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1630 /* CURVES and AUTOMATION LISTS */
1631 std::map<PBD::ID, AutomationList*> automation_lists;
1633 /* DEFAULT FADE CURVES */
1635 float default_fade_steepness;
1636 float default_fade_msecs;
1640 boost::shared_ptr<Auditioner> auditioner;
1641 void set_audition (boost::shared_ptr<Region>);
1642 void non_realtime_set_audition ();
1643 boost::shared_ptr<Region> pending_audition_region;
1649 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1651 /* INSERT AND SEND MANAGEMENT */
1653 boost::dynamic_bitset<uint32_t> send_bitset;
1654 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1655 boost::dynamic_bitset<uint32_t> return_bitset;
1656 boost::dynamic_bitset<uint32_t> insert_bitset;
1660 struct space_and_path {
1661 uint32_t blocks; ///< 4kB blocks
1662 bool blocks_unknown; ///< true if blocks is unknown
1667 , blocks_unknown (true)
1671 struct space_and_path_ascending_cmp {
1672 bool operator() (space_and_path a, space_and_path b) {
1673 if (a.blocks_unknown != b.blocks_unknown) {
1674 return !a.blocks_unknown;
1676 return a.blocks > b.blocks;
1680 void setup_raid_path (std::string path);
1682 std::vector<space_and_path> session_dirs;
1683 std::vector<space_and_path>::iterator last_rr_session_dir;
1684 uint32_t _total_free_4k_blocks;
1685 /** If this is true, _total_free_4k_blocks is not definite,
1686 as one or more of the session directories' filesystems
1687 could not report free space.
1689 bool _total_free_4k_blocks_uncertain;
1690 Glib::Threads::Mutex space_lock;
1692 bool no_questions_about_missing_files;
1694 std::string get_best_session_directory_for_new_audio ();
1696 mutable gint _playback_load;
1697 mutable gint _capture_load;
1701 SerializedRCUManager<BundleList> _bundles;
1702 XMLNode* _bundle_xml_node;
1703 int load_bundles (XMLNode const &);
1705 UndoHistory _history;
1706 /** current undo transaction, or 0 */
1707 UndoTransaction* _current_trans;
1708 /** GQuarks to describe the reversible commands that are currently in progress.
1709 * These may be nested, in which case more recently-started commands are toward
1710 * the front of the list.
1712 std::list<GQuark> _current_trans_quarks;
1714 int backend_sync_callback (TransportState, framepos_t);
1716 void process_rtop (SessionEvent*);
1718 void update_latency (bool playback);
1720 XMLNode& state(bool);
1723 typedef std::list<Click*> Clicks;
1726 boost::shared_ptr<IO> _click_io;
1727 boost::shared_ptr<Amp> _click_gain;
1729 Sample* click_emphasis_data;
1730 framecnt_t click_length;
1731 framecnt_t click_emphasis_length;
1732 mutable Glib::Threads::RWLock click_lock;
1734 static const Sample default_click[];
1735 static const framecnt_t default_click_length;
1736 static const Sample default_click_emphasis[];
1737 static const framecnt_t default_click_emphasis_length;
1740 framepos_t _clicks_cleared;
1741 void setup_click_sounds (int which);
1742 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1743 void clear_clicks ();
1744 void click (framepos_t start, framecnt_t nframes);
1746 std::vector<Route*> master_outs;
1748 /* range playback */
1750 std::list<AudioRange> current_audio_range;
1752 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1753 void unset_play_range ();
1755 /* temporary hacks to allow selection to be pushed from GUI into backend
1756 Whenever we move the selection object into libardour, these will go away.
1758 Evoral::Range<framepos_t> _range_selection;
1759 Evoral::Range<framepos_t> _object_selection;
1764 boost::shared_ptr<Route> _master_out;
1765 boost::shared_ptr<Route> _monitor_out;
1767 void auto_connect_master_bus ();
1769 /* Windows VST support */
1771 long _windows_vst_callback (
1780 int find_all_sources (std::string path, std::set<std::string>& result);
1781 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1783 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1784 Glib::Threads::Mutex controllables_lock;
1785 Controllables controllables;
1787 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1789 void reset_native_file_format();
1790 bool first_file_data_format_reset;
1791 bool first_file_header_format_reset;
1793 void config_changed (std::string, bool);
1795 XMLNode& get_control_protocol_state ();
1797 void set_history_depth (uint32_t depth);
1799 static bool _disable_all_loaded_plugins;
1800 static bool _bypass_all_loaded_plugins;
1802 mutable bool have_looped; ///< Used in ::audible_frame(*)
1804 void update_route_record_state ();
1805 gint _have_rec_enabled_track;
1806 gint _have_rec_disabled_track;
1808 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1810 /* realtime "apply to set of routes" operations */
1811 template<typename T> SessionEvent*
1812 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1813 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1814 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1815 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1816 ev->rt_return = after;
1817 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1822 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1823 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1824 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition /* ignored*/ );
1825 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1826 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1827 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1828 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1829 void rt_set_record_safe (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1830 void rt_set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, PBD::Controllable::GroupControlDisposition group_override);
1832 /** temporary list of Diskstreams used only during load of 2.X sessions */
1833 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1835 void set_session_range_location (framepos_t, framepos_t);
1837 void setup_midi_machine_control ();
1839 void step_edit_status_change (bool);
1840 uint32_t _step_editors;
1842 /** true if timecode transmission by the transport is suspended, otherwise false */
1843 mutable gint _suspend_timecode_transmission;
1845 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1847 void start_time_changed (framepos_t);
1848 void end_time_changed (framepos_t);
1850 void set_track_monitor_input_status (bool);
1851 framepos_t compute_stop_limit () const;
1853 boost::shared_ptr<Speakers> _speakers;
1854 void load_nested_sources (const XMLNode& node);
1856 /** The directed graph of routes that is currently being used for audio processing
1857 and solo/mute computations.
1859 GraphEdges _current_route_graph;
1861 uint32_t next_control_id () const;
1862 int32_t _order_hint;
1863 bool ignore_route_processor_changes;
1865 MidiClockTicker* midi_clock;
1867 boost::shared_ptr<IO> _ltc_input;
1868 boost::shared_ptr<IO> _ltc_output;
1870 /* Scene Changing */
1871 SceneChanger* _scene_changer;
1873 /* persistent, non-track related MIDI ports */
1874 MidiPortManager* _midi_ports;
1875 MIDI::MachineControl* _mmc;
1878 void setup_click ();
1879 void setup_click_state (const XMLNode*);
1880 void setup_bundles ();
1882 void save_as_bring_callback (uint32_t, uint32_t, std::string);
1884 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
1885 static const uint32_t session_end_shift;
1887 std::string _template_state_dir;
1891 } // namespace ARDOUR
1893 #endif /* __ardour_session_h__ */