2 Copyright (C) 2000 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_session_h__
21 #define __ardour_session_h__
23 #include "libardour-config.h"
34 #include <boost/dynamic_bitset.hpp>
35 #include <boost/scoped_ptr.hpp>
36 #include <boost/weak_ptr.hpp>
37 #include <boost/utility.hpp>
39 #include <glibmm/threads.h>
43 #include "pbd/error.h"
44 #include "pbd/event_loop.h"
46 #include "pbd/reallocpool.h"
47 #include "pbd/statefuldestructible.h"
48 #include "pbd/signals.h"
51 #include "lua/luastate.h"
53 #include "evoral/Range.hpp"
55 #include "midi++/types.h"
56 #include "midi++/mmc.h"
58 #include "timecode/time.h"
60 #include "ardour/ardour.h"
61 #include "ardour/chan_count.h"
62 #include "ardour/delivery.h"
63 #include "ardour/interthread_info.h"
64 #include "ardour/luascripting.h"
65 #include "ardour/location.h"
66 #include "ardour/monitor_processor.h"
67 #include "ardour/presentation_info.h"
68 #include "ardour/rc_configuration.h"
69 #include "ardour/session_configuration.h"
70 #include "ardour/session_event.h"
71 #include "ardour/interpolation.h"
72 #include "ardour/plugin.h"
73 #include "ardour/presentation_info.h"
74 #include "ardour/route.h"
75 #include "ardour/route_graph.h"
81 typedef struct _AEffect AEffect;
105 class AudioFileSource;
110 class AutomationList;
116 class ControllableDescriptor;
124 class MidiClockTicker;
126 class MidiPortManager;
145 class SessionDirectory;
146 class SessionMetadata;
147 class SessionPlaylists;
154 class WindowsVSTPlugin;
156 extern void setup_enum_writer ();
158 class LIBARDOUR_API SessionException: public std::exception {
160 explicit SessionException(const std::string msg) : _message(msg) {}
161 virtual ~SessionException() throw() {}
163 virtual const char* what() const throw() { return _message.c_str(); }
166 std::string _message;
169 /** Ardour Session */
170 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
174 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
175 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
176 StopPendingCapture = 0x4,
177 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
178 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
179 PendingLocate = 0x20,
189 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
190 the bus profile can be null if no master out bus is required.
193 Session (AudioEngine&,
194 const std::string& fullpath,
195 const std::string& snapshot_name,
196 BusProfile* bus_profile = 0,
197 std::string mix_template = "");
201 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format);
202 static std::string get_snapshot_from_instant (const std::string& session_dir);
204 /** a monotonic counter used for naming user-visible things uniquely
205 * (curently the sidechain port).
206 * Use sparingly to keep the numbers low, prefer PBD::ID for all
207 * internal, not user-visible IDs */
208 static unsigned int next_name_id ();
210 std::string path() const { return _path; }
211 std::string name() const { return _name; }
212 std::string snap_name() const { return _current_snapshot_name; }
213 std::string raid_path () const;
214 bool path_is_within_session (const std::string&);
216 bool writable() const { return _writable; }
219 bool dirty() const { return _state_of_the_state & Dirty; }
220 void set_deletion_in_progress ();
221 void clear_deletion_in_progress ();
222 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
223 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
224 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
225 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
226 bool loading () const { return _state_of_the_state & Loading; }
228 PBD::Signal0<void> DirtyChanged;
230 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
232 static PBD::Signal1<void,std::string> Dialog;
234 PBD::Signal0<void> BatchUpdateStart;
235 PBD::Signal0<void> BatchUpdateEnd;
237 int ensure_subdirs ();
239 std::string automation_dir () const; ///< Automation data
240 std::string analysis_dir () const; ///< Analysis data
241 std::string plugins_dir () const; ///< Plugin state
242 std::string externals_dir () const; ///< Links to external files
244 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
246 bool audio_source_name_is_unique (const std::string& name);
247 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);
248 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
249 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
250 std::string new_midi_source_path (const std::string&);
251 /** create a new track or bus from a template (XML path)
252 * @param how_many how many tracks or busses to create
253 * @param template_path path to xml template file
254 * @param name name (prefix) of the route to create
255 * @param pd Playlist disposition
256 * @return list of newly created routes
258 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, const std::string& template_path, const std::string& name, PlaylistDisposition pd = NewPlaylist);
259 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
260 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path, uint32_t channels);
262 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
264 void process (pframes_t nframes);
266 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
267 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
268 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
269 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
270 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
272 bool have_rec_enabled_track () const;
273 bool have_rec_disabled_track () const;
275 bool have_captured() const { return _have_captured; }
277 void refill_all_track_buffers ();
278 Butler* butler() { return _butler; }
279 void butler_transport_work ();
281 void refresh_disk_space ();
283 int load_diskstreams_2X (XMLNode const &, int);
285 int load_routes (const XMLNode&, int);
286 boost::shared_ptr<RouteList> get_routes() const {
287 return routes.reader ();
290 /* because the set of Stripables consists of objects managed
291 * independently, in multiple containers within the Session (or objects
292 * owned by the session), we fill out a list in-place rather than
293 * return a pointer to a copy of the (RCU) managed list, as happens
297 void get_stripables (StripableList&) const;
298 boost::shared_ptr<RouteList> get_tracks() const;
299 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
300 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
302 uint32_t nroutes() const { return routes.reader()->size(); }
303 uint32_t ntracks () const;
304 uint32_t nbusses () const;
306 boost::shared_ptr<BundleList> bundles () {
307 return _bundles.reader ();
310 struct LIBARDOUR_API RoutePublicOrderSorter {
311 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
314 void notify_presentation_info_change ();
316 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
317 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
318 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
320 static char session_name_is_legal (const std::string&);
321 bool io_name_is_legal (const std::string&) const;
322 boost::shared_ptr<Route> route_by_name (std::string) const;
323 boost::shared_ptr<Route> route_by_id (PBD::ID) const;
324 boost::shared_ptr<Stripable> get_remote_nth_stripable (PresentationInfo::order_t n, PresentationInfo::Flag) const;
325 boost::shared_ptr<Route> get_remote_nth_route (PresentationInfo::order_t n) const;
326 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt) const;
327 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID) const;
328 void routes_using_input_from (const std::string& str, RouteList& rl);
330 bool route_name_unique (std::string) const;
331 bool route_name_internal (std::string) const;
333 uint32_t track_number_decimals () const {
334 return _track_number_decimals;
337 bool get_record_enabled() const {
338 return (record_status () >= Enabled);
341 RecordState record_status() const {
342 return (RecordState) g_atomic_int_get (&_record_status);
345 bool actively_recording () const {
346 return record_status() == Recording;
349 bool record_enabling_legal () const;
350 void maybe_enable_record ();
351 void disable_record (bool rt_context, bool force = false);
352 void step_back_from_record ();
354 void set_all_tracks_record_enabled(bool);
356 void maybe_write_autosave ();
358 /* Emitted when all i/o connections are complete */
360 PBD::Signal0<void> IOConnectionsComplete;
362 /* Timecode status signals */
363 PBD::Signal1<void, bool> MTCSyncStateChanged;
364 PBD::Signal1<void, bool> LTCSyncStateChanged;
366 /* Record status signals */
368 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
369 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
370 from the previous signal and session state.
372 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
374 /* Emited when session is loaded */
375 PBD::Signal0<void> SessionLoaded;
377 /* Transport mechanism signals */
379 /** Emitted on the following changes in transport state:
380 * - stop (from the butler thread)
381 * - change in whether or not we are looping (from the process thread)
382 * - change in the play range (from the process thread)
383 * - start (from the process thread)
386 PBD::Signal0<void> TransportStateChange;
388 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
389 PBD::Signal1<void,framepos_t> Xrun;
390 PBD::Signal0<void> TransportLooped;
392 /** emitted when a locate has occurred */
393 PBD::Signal0<void> Located;
395 PBD::Signal1<void,RouteList&> RouteAdded;
396 /** Emitted when a property of one of our route groups changes.
397 * The parameter is the RouteGroup that has changed.
399 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
400 /** Emitted when a route is added to one of our route groups.
401 * First parameter is the RouteGroup, second is the route.
403 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
404 /** Emitted when a route is removed from one of our route groups.
405 * First parameter is the RouteGroup, second is the route.
407 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
409 /* Step Editing status changed */
410 PBD::Signal1<void,bool> StepEditStatusChange;
412 /* Timecode state signals */
413 PBD::Signal0<void> MtcOrLtcInputPortChanged;
415 void queue_event (SessionEvent*);
417 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
418 void request_bounded_roll (framepos_t start, framepos_t end);
419 void request_stop (bool abort = false, bool clear_state = false);
420 void request_locate (framepos_t frame, bool with_roll = false);
422 void request_play_loop (bool yn, bool leave_rolling = false);
423 bool get_play_loop () const { return play_loop; }
425 framepos_t last_transport_start () const { return _last_roll_location; }
428 void use_rf_shuttle_speed ();
429 void allow_auto_play (bool yn);
430 void request_transport_speed (double speed, bool as_default = true);
431 void request_transport_speed_nonzero (double, bool as_default = true);
432 void request_overwrite_buffer (Track *);
433 void adjust_playback_buffering();
434 void adjust_capture_buffering();
435 void request_track_speed (Track *, double speed);
436 void request_input_change_handling ();
438 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
439 bool declick_out_pending() const { return static_cast<bool>(transport_sub_state&(PendingDeclickOut)); }
440 bool transport_locked () const;
444 framepos_t current_end_frame () const;
445 framepos_t current_start_frame () const;
446 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
447 framecnt_t frame_rate () const { return _current_frame_rate; }
448 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
449 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
450 framecnt_t frames_per_hour () const { return _frames_per_hour; }
452 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
453 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
455 MIDI::byte get_mtc_timecode_bits() const {
456 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
459 double timecode_frames_per_second() const;
460 bool timecode_drop_frames() const;
464 Locations *locations() { return _locations; }
466 PBD::Signal1<void,Location*> auto_loop_location_changed;
467 PBD::Signal1<void,Location*> auto_punch_location_changed;
468 PBD::Signal0<void> locations_modified;
470 void set_auto_punch_location (Location *);
471 void set_auto_loop_location (Location *);
472 void set_session_extents (framepos_t start, framepos_t end);
473 void set_end_is_free (bool);
474 int location_name(std::string& result, std::string base = std::string(""));
476 pframes_t get_block_size() const { return current_block_size; }
477 framecnt_t worst_output_latency () const { return _worst_output_latency; }
478 framecnt_t worst_input_latency () const { return _worst_input_latency; }
479 framecnt_t worst_track_latency () const { return _worst_track_latency; }
480 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
483 std::string new_parent_folder; /* parent folder where new session folder will be created */
484 std::string new_name; /* name of newly saved session */
485 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
486 bool include_media; /* true if the newly saved session should contain references to media */
487 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
488 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
490 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
492 /* emitted as we make progress. 3 arguments passed to signal
495 * 1: percentage complete measured as a fraction (0-1.0) of
496 * total data copying done.
497 * 2: number of files copied so far
498 * 3: total number of files to copy
500 * Handler should return true for save-as to continue, or false
501 * to stop (and remove all evidence of partial save-as).
503 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
505 /* if save_as() returns non-zero, this string will indicate the reason why.
507 std::string failure_message;
510 int save_as (SaveAs&);
512 * @param snapshot_name name of the session (use an empty string for the current name)
513 * @param pending save a 'recovery', not full state (default: false)
514 * @param switch_to_snapshot switch to given snapshot after saving (default: false)
515 * @param template_only save a session template (default: false)
516 * @return zero on success
518 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
519 int restore_state (std::string snapshot_name);
520 int save_template (std::string template_name, bool replace_existing = false);
521 int save_history (std::string snapshot_name = "");
522 int restore_history (std::string snapshot_name);
523 void remove_state (std::string snapshot_name);
524 void rename_state (std::string old_name, std::string new_name);
525 void remove_pending_capture_state ();
526 int rename (const std::string&);
527 bool get_nsm_state () const { return _under_nsm_control; }
528 void set_nsm_state (bool state) { _under_nsm_control = state; }
529 bool save_default_options ();
531 PBD::Signal1<void,std::string> StateSaved;
532 PBD::Signal0<void> StateReady;
534 /* emitted when session needs to be saved due to some internal
535 * event or condition (i.e. not in response to a user request).
537 * Only one object should
538 * connect to this signal and take responsibility.
540 * Argument is the snapshot name to use when saving.
542 PBD::Signal1<void,std::string> SaveSessionRequested;
544 /* emitted during a session save to allow other entities to add state, via
545 * extra XML, to the session state
547 PBD::Signal0<void> SessionSaveUnderway;
549 std::vector<std::string> possible_states() const;
550 static std::vector<std::string> possible_states (std::string path);
552 XMLNode& get_state();
553 int set_state(const XMLNode& node, int version); // not idempotent
554 XMLNode& get_template();
556 /// The instant xml file is written to the session directory
557 void add_instant_xml (XMLNode&, bool write_to_config = true);
558 XMLNode* instant_xml (const std::string& str);
560 enum StateOfTheState {
565 InitialConnecting = 0x8,
571 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
573 class StateProtector {
575 StateProtector (Session* s) : _session (s) {
576 g_atomic_int_inc (&s->_suspend_save);
579 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
580 while (_session->_save_queued) {
581 _session->_save_queued = false;
582 _session->save_state ("");
590 void add_route_group (RouteGroup *);
591 void remove_route_group (RouteGroup&);
592 void reorder_route_groups (std::list<RouteGroup*>);
594 RouteGroup* route_group_by_name (std::string);
595 RouteGroup& all_route_group() const;
597 PBD::Signal1<void,RouteGroup*> route_group_added;
598 PBD::Signal0<void> route_group_removed;
599 PBD::Signal0<void> route_groups_reordered;
601 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
602 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
607 std::list<RouteGroup*> const & route_groups () const {
608 return _route_groups;
611 /* fundamental operations. duh. */
613 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
616 RouteGroup* route_group,
618 std::string name_template,
619 PresentationInfo::order_t order,
620 TrackMode mode = Normal
623 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
624 const ChanCount& input, const ChanCount& output,
625 boost::shared_ptr<PluginInfo> instrument,
626 Plugin::PresetRecord* pset,
627 RouteGroup* route_group, uint32_t how_many, std::string name_template,
628 PresentationInfo::order_t,
629 TrackMode mode = Normal
632 RouteList new_audio_route (int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template, PresentationInfo::Flag, PresentationInfo::order_t);
633 RouteList new_midi_route (RouteGroup* route_group, uint32_t how_many, std::string name_template, boost::shared_ptr<PluginInfo> instrument, Plugin::PresetRecord*, PresentationInfo::Flag, PresentationInfo::order_t);
635 void remove_routes (boost::shared_ptr<RouteList>);
636 void remove_route (boost::shared_ptr<Route>);
638 void resort_routes ();
639 void resort_routes_using (boost::shared_ptr<RouteList>);
641 AudioEngine & engine() { return _engine; }
642 AudioEngine const & engine () const { return _engine; }
644 static std::string default_track_name_pattern (DataType);
648 framepos_t transport_frame () const {return _transport_frame; }
649 framepos_t record_location () const {return _last_record_location; }
650 framepos_t audible_frame () const;
651 framepos_t requested_return_frame() const { return _requested_return_frame; }
652 void set_requested_return_frame(framepos_t return_to);
666 void sync_time_vars();
668 void bbt_time (framepos_t when, Timecode::BBT_Time&);
669 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
670 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
671 void timecode_time (Timecode::Time &);
672 void timecode_time (framepos_t when, Timecode::Time&);
673 void timecode_time_subframes (framepos_t when, Timecode::Time&);
675 void timecode_duration (framecnt_t, Timecode::Time&) const;
676 void timecode_duration_string (char *, size_t len, framecnt_t) const;
678 framecnt_t convert_to_frames (AnyTime const & position);
679 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
681 static PBD::Signal1<void, framepos_t> StartTimeChanged;
682 static PBD::Signal1<void, framepos_t> EndTimeChanged;
684 void request_sync_source (Slave*);
685 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
686 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
687 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
689 double transport_speed() const { return _transport_speed; }
690 bool transport_stopped() const { return _transport_speed == 0.0; }
691 bool transport_rolling() const { return _transport_speed != 0.0; }
693 bool silent () { return _silent; }
695 TempoMap& tempo_map() { return *_tempo_map; }
696 const TempoMap& tempo_map() const { return *_tempo_map; }
698 unsigned int get_xrun_count () const {return _xrun_count; }
699 void reset_xrun_count () {_xrun_count = 0; }
703 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
705 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
706 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
707 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
709 /* source management */
711 void import_files (ImportStatus&);
712 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
713 std::string build_tmp_convert_name (std::string file);
715 boost::shared_ptr<ExportHandler> get_export_handler ();
716 boost::shared_ptr<ExportStatus> get_export_status ();
718 int start_audio_export (framepos_t position, bool realtime = false);
720 PBD::Signal1<int, framecnt_t> ProcessExport;
721 static PBD::Signal2<void,std::string, std::string> Exported;
723 void add_source (boost::shared_ptr<Source>);
724 void remove_source (boost::weak_ptr<Source>);
726 void cleanup_regions();
727 bool can_cleanup_peakfiles () const;
728 int cleanup_peakfiles ();
729 int cleanup_sources (CleanupReport&);
730 int cleanup_trash_sources (CleanupReport&);
732 int destroy_sources (std::list<boost::shared_ptr<Source> >);
734 int remove_last_capture ();
736 /** handlers should return 0 for "everything OK", and any other value for
737 * "cannot setup audioengine".
739 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
741 /** handlers should return -1 for "stop cleanup",
742 0 for "yes, delete this playlist",
743 1 for "no, don't delete this playlist".
745 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
747 /** handlers should return 0 for "ignore the rate mismatch",
748 !0 for "do not use this session"
750 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
752 /** non interactive message */
753 static PBD::Signal2<void, framecnt_t, framecnt_t> NotifyAboutSampleRateMismatch;
755 /** handlers should return !0 for use pending state, 0 for ignore it.
757 static PBD::Signal0<int> AskAboutPendingState;
759 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
760 size_t, std::string const &, uint32_t, bool destructive);
762 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
763 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
765 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
766 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
767 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
768 uint32_t count_sources_by_origin (const std::string&);
770 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
772 /* Curves and AutomationLists (TODO when they go away) */
773 void add_automation_list(AutomationList*);
777 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
778 void audition_playlist ();
779 void audition_region (boost::shared_ptr<Region>);
780 void cancel_audition ();
781 bool is_auditioning () const;
783 PBD::Signal1<void,bool> AuditionActive;
786 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
787 void unregister_lua_function (const std::string& name);
788 std::vector<std::string> registered_lua_functions ();
789 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
790 void scripts_changed (); // called from lua, updates _n_lua_scripts
792 /* flattening stuff */
794 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
795 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
796 boost::shared_ptr<Processor> endpoint,
797 bool include_endpoint, bool for_export, bool for_freeze);
798 int freeze_all (InterThreadInfo&);
800 /* session-wide solo/mute/rec-enable */
802 bool soloing() const { return _non_soloed_outs_muted; }
803 bool listening() const { return _listen_cnt > 0; }
804 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
805 void cancel_all_solo ();
807 static const SessionEvent::RTeventCallback rt_cleanup;
809 void clear_all_solo_state (boost::shared_ptr<RouteList>);
811 /* Control-based methods */
813 void set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition);
814 void set_control (boost::shared_ptr<AutomationControl>, double val, PBD::Controllable::GroupControlDisposition);
816 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
818 PBD::Signal1<void,bool> SoloActive;
819 PBD::Signal0<void> SoloChanged;
820 PBD::Signal0<void> IsolatedChanged;
821 PBD::Signal0<void> MonitorChanged;
823 PBD::Signal0<void> session_routes_reconnected;
825 /* monitor/master out */
827 void add_monitor_section ();
828 void reset_monitor_section ();
829 void remove_monitor_section ();
830 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
832 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
833 boost::shared_ptr<Route> master_out() const { return _master_out; }
835 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
836 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
837 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
838 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
839 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
840 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
841 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
843 static void set_disable_all_loaded_plugins (bool yn) {
844 _disable_all_loaded_plugins = yn;
846 static bool get_disable_all_loaded_plugins() {
847 return _disable_all_loaded_plugins;
849 static void set_bypass_all_loaded_plugins (bool yn) {
850 _bypass_all_loaded_plugins = yn;
852 static bool get_bypass_all_loaded_plugins() {
853 return _bypass_all_loaded_plugins;
856 uint32_t next_send_id();
857 uint32_t next_aux_send_id();
858 uint32_t next_return_id();
859 uint32_t next_insert_id();
860 void mark_send_id (uint32_t);
861 void mark_aux_send_id (uint32_t);
862 void mark_return_id (uint32_t);
863 void mark_insert_id (uint32_t);
864 void unmark_send_id (uint32_t);
865 void unmark_aux_send_id (uint32_t);
866 void unmark_return_id (uint32_t);
867 void unmark_insert_id (uint32_t);
869 /* s/w "RAID" management */
871 boost::optional<framecnt_t> available_capture_duration();
875 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
876 void remove_bundle (boost::shared_ptr<Bundle>);
877 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
879 PBD::Signal0<void> BundleAddedOrRemoved;
883 /* History (for editors, mixers, UIs etc.) */
885 /** Undo some transactions.
886 * @param n Number of transactions to undo.
888 void undo (uint32_t n);
889 /** Redo some transactions.
890 * @param n Number of transactions to undo.
892 void redo (uint32_t n);
894 UndoHistory& history() { return _history; }
896 uint32_t undo_depth() const { return _history.undo_depth(); }
897 uint32_t redo_depth() const { return _history.redo_depth(); }
898 std::string next_undo() const { return _history.next_undo(); }
899 std::string next_redo() const { return _history.next_redo(); }
901 /** begin collecting undo information
903 * This call must always be followed by either
904 * begin_reversible_command() or commit_reversible_command()
906 * @param cmd_name human readable name for the undo operation
908 void begin_reversible_command (const std::string& cmd_name);
909 void begin_reversible_command (GQuark);
910 /** abort an open undo command
911 * This must only be called after begin_reversible_command ()
913 void abort_reversible_command ();
914 /** finalize an undo command and commit pending transactions
916 * This must only be called after begin_reversible_command ()
917 * @param cmd (additional) command to add
919 void commit_reversible_command (Command* cmd = 0);
921 void add_command (Command *const cmd);
923 /** create an StatefulDiffCommand from the given object and add it to the stack.
925 * This function must only be called after begin_reversible_command.
926 * Failing to do so may lead to a crash.
928 * @param sfd the object to diff
929 * @returns the allocated StatefulDiffCommand (already added via add_command)
931 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
933 /** @return The list of operations that are currently in progress */
934 std::list<GQuark> const & current_operations () {
935 return _current_trans_quarks;
938 bool operation_in_progress (GQuark) const;
940 void add_commands (std::vector<Command*> const & cmds);
942 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
944 // these commands are implemented in libs/ardour/session_command.cc
945 Command* memento_command_factory(XMLNode* n);
946 Command* stateful_diff_command_factory (XMLNode *);
947 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
951 boost::shared_ptr<IO> click_io() { return _click_io; }
952 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
954 /* disk, buffer loads */
956 uint32_t playback_load ();
957 uint32_t capture_load ();
961 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
962 void request_cancel_play_range ();
963 bool get_play_range () const { return _play_range; }
965 void maybe_update_session_range (framepos_t, framepos_t);
967 /* temporary hacks to allow selection to be pushed from GUI into backend.
968 Whenever we move the selection object into libardour, these will go away.
970 void set_range_selection (framepos_t start, framepos_t end);
971 void set_object_selection (framepos_t start, framepos_t end);
972 void clear_range_selection ();
973 void clear_object_selection ();
975 /* buffers for gain and pan */
977 gain_t* gain_automation_buffer () const;
978 gain_t* trim_automation_buffer () const;
979 gain_t* send_gain_automation_buffer () const;
980 pan_t** pan_automation_buffer () const;
982 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
986 static int vst_current_loading_id;
987 static const char* vst_can_do_strings[];
988 static const int vst_can_do_string_count;
990 static intptr_t vst_callback (
999 static PBD::Signal0<void> SendFeedback;
1003 boost::shared_ptr<Speakers> get_speakers ();
1007 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
1009 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
1010 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const ARDOUR::ControllableDescriptor&);
1012 void add_controllable (boost::shared_ptr<PBD::Controllable>);
1013 void remove_controllable (PBD::Controllable*);
1015 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
1017 SessionConfiguration config;
1019 SessionConfiguration* cfg () { return &config; }
1021 bool exporting () const {
1025 bool bounce_processing() const {
1026 return _bounce_processing_active;
1029 /* this is a private enum, but setup_enum_writer() needs it,
1030 and i can't find a way to give that function
1031 friend access. sigh.
1034 enum PostTransportWork {
1035 PostTransportStop = 0x1,
1036 PostTransportDuration = 0x2,
1037 PostTransportLocate = 0x4,
1038 PostTransportRoll = 0x8,
1039 PostTransportAbort = 0x10,
1040 PostTransportOverWrite = 0x20,
1041 PostTransportSpeed = 0x40,
1042 PostTransportAudition = 0x80,
1043 PostTransportReverse = 0x100,
1044 PostTransportInputChange = 0x200,
1045 PostTransportCurveRealloc = 0x400,
1046 PostTransportClearSubstate = 0x800,
1047 PostTransportAdjustPlaybackBuffering = 0x1000,
1048 PostTransportAdjustCaptureBuffering = 0x2000
1057 SlaveState slave_state() const { return _slave_state; }
1058 Slave* slave() const { return _slave; }
1060 boost::shared_ptr<SessionPlaylists> playlists;
1062 void send_mmc_locate (framepos_t);
1063 void queue_full_time_code () { _send_timecode_update = true; }
1064 void queue_song_position_pointer () { /* currently does nothing */ }
1066 bool step_editing() const { return (_step_editors > 0); }
1068 void request_suspend_timecode_transmission ();
1069 void request_resume_timecode_transmission ();
1070 bool timecode_transmission_suspended () const;
1072 std::vector<std::string> source_search_path(DataType) const;
1073 void ensure_search_path_includes (const std::string& path, DataType type);
1074 void remove_dir_from_search_path (const std::string& path, DataType type);
1076 std::list<std::string> unknown_processors () const;
1078 /** Emitted when a feedback cycle has been detected within Ardour's signal
1079 processing path. Until it is fixed (by the user) some (unspecified)
1080 routes will not be run.
1082 static PBD::Signal0<void> FeedbackDetected;
1084 /** Emitted when a graph sort has successfully completed, which means
1085 that it has no feedback cycles.
1087 static PBD::Signal0<void> SuccessfulGraphSort;
1089 /* handlers can return an integer value:
1090 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1091 to modify the search path and we should try to find it again.
1092 1: quit entire session load
1093 2: as 0, but don't ask about other missing files
1094 3: don't ask about other missing files, and just mark this one missing
1095 -1: just mark this one missing
1096 any other value: as -1
1098 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1100 /** Emitted when the session wants Ardour to quit */
1101 static PBD::Signal0<void> Quit;
1103 /** Emitted when Ardour is asked to load a session in an older session
1104 * format, and makes a backup copy.
1106 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1108 SceneChanger* scene_changer() const { return _scene_changer; }
1110 /* asynchronous MIDI control ports */
1112 boost::shared_ptr<Port> midi_input_port () const;
1113 boost::shared_ptr<Port> midi_output_port () const;
1114 boost::shared_ptr<Port> mmc_output_port () const;
1115 boost::shared_ptr<Port> mmc_input_port () const;
1116 boost::shared_ptr<Port> scene_input_port () const;
1117 boost::shared_ptr<Port> scene_output_port () const;
1119 /* synchronous MIDI ports used for synchronization */
1121 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1122 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1123 boost::shared_ptr<MidiPort> mtc_output_port () const;
1124 boost::shared_ptr<MidiPort> mtc_input_port () const;
1125 boost::shared_ptr<Port> ltc_input_port() const;
1126 boost::shared_ptr<Port> ltc_output_port() const;
1128 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1129 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1131 MIDI::MachineControl& mmc() { return *_mmc; }
1133 void reconnect_midi_scene_ports (bool);
1134 void reconnect_mtc_ports ();
1135 void reconnect_mmc_ports (bool);
1137 void reconnect_ltc_input ();
1138 void reconnect_ltc_output ();
1140 VCAManager& vca_manager() { return *_vca_manager; }
1142 bool midi_regions_use_bbt_beats () { return _midi_regions_use_bbt_beats; }
1145 friend class AudioEngine;
1146 void set_block_size (pframes_t nframes);
1147 void set_frame_rate (framecnt_t nframes);
1148 #ifdef USE_TRACKS_CODE_FEATURES
1149 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1154 void schedule_curve_reallocation ();
1155 void update_latency_compensation (bool force = false);
1158 int create (const std::string& mix_template, BusProfile*);
1161 static guint _name_id_counter;
1162 static void init_name_id_counter (guint n);
1163 static unsigned int name_id_counter ();
1165 /* stuff used in process() should be close together to
1169 typedef void (Session::*process_function_type)(pframes_t);
1171 AudioEngine& _engine;
1172 mutable gint processing_prohibited;
1173 process_function_type process_function;
1174 process_function_type last_process_function;
1175 bool _bounce_processing_active;
1176 bool waiting_for_sync_offset;
1177 framecnt_t _base_frame_rate; // sample-rate of the session at creation time, "native" SR
1178 framecnt_t _nominal_frame_rate; // overridden by audioengine setting
1179 framecnt_t _current_frame_rate; // this includes video pullup offset
1180 int transport_sub_state;
1181 mutable gint _record_status;
1182 framepos_t _transport_frame;
1183 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1184 bool _session_range_end_is_free;
1188 // varispeed playback
1189 double _transport_speed;
1190 double _default_transport_speed;
1191 double _last_transport_speed;
1192 double _signalled_varispeed;
1193 double _target_transport_speed;
1194 CubicInterpolation interpolation;
1196 bool auto_play_legal;
1197 framepos_t _last_slave_transport_frame;
1198 framecnt_t maximum_output_latency;
1199 framepos_t _requested_return_frame;
1200 pframes_t current_block_size;
1201 framecnt_t _worst_output_latency;
1202 framecnt_t _worst_input_latency;
1203 framecnt_t _worst_track_latency;
1204 bool _have_captured;
1205 bool _non_soloed_outs_muted;
1207 uint32_t _listen_cnt;
1208 uint32_t _solo_isolated_cnt;
1211 bool _under_nsm_control;
1212 unsigned int _xrun_count;
1214 void mtc_status_changed (bool);
1215 PBD::ScopedConnection mtc_status_connection;
1216 void ltc_status_changed (bool);
1217 PBD::ScopedConnection ltc_status_connection;
1219 void initialize_latencies ();
1220 void set_worst_io_latencies ();
1221 void set_worst_playback_latency ();
1222 void set_worst_capture_latency ();
1223 void set_worst_io_latencies_x (IOChange, void *) {
1224 set_worst_io_latencies ();
1226 void post_capture_latency ();
1227 void post_playback_latency ();
1229 void update_latency_compensation_proxy (void* ignored);
1231 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1233 void process_scrub (pframes_t);
1234 void process_without_events (pframes_t);
1235 void process_with_events (pframes_t);
1236 void process_audition (pframes_t);
1237 void process_export (pframes_t);
1238 void process_export_fw (pframes_t);
1240 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1241 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1242 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1244 static const framecnt_t bounce_chunk_size;
1246 /* slave tracking */
1248 static const int delta_accumulator_size = 25;
1249 int delta_accumulator_cnt;
1250 int32_t delta_accumulator[delta_accumulator_size];
1251 int32_t average_slave_delta;
1253 bool have_first_delta_accumulator;
1255 SlaveState _slave_state;
1258 framepos_t slave_wait_end;
1260 void reset_slave_state ();
1261 bool follow_slave (pframes_t);
1262 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1263 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1264 void follow_slave_silently (pframes_t nframes, float slave_speed);
1266 void switch_to_sync_source (SyncSource); /* !RT context */
1267 void drop_sync_source (); /* !RT context */
1268 void use_sync_source (Slave*); /* RT context */
1270 bool post_export_sync;
1271 framepos_t post_export_position;
1274 bool _export_rolling;
1275 bool _realtime_export;
1276 framepos_t _export_preroll;
1277 framepos_t _export_latency;
1279 boost::shared_ptr<ExportHandler> export_handler;
1280 boost::shared_ptr<ExportStatus> export_status;
1283 int stop_audio_export ();
1284 void finalize_audio_export ();
1285 void finalize_export_internal (bool stop_freewheel);
1286 bool _pre_export_mmc_enabled;
1288 PBD::ScopedConnection export_freewheel_connection;
1290 void get_track_statistics ();
1291 int process_routes (pframes_t, bool& need_butler);
1292 int silent_process_routes (pframes_t, bool& need_butler);
1294 /** @return 1 if there is a pending declick fade-in,
1295 -1 if there is a pending declick fade-out,
1296 0 if there is no pending declick.
1298 int get_transport_declick_required () {
1299 if (transport_sub_state & PendingDeclickIn) {
1300 transport_sub_state &= ~PendingDeclickIn;
1302 } else if (transport_sub_state & PendingDeclickOut) {
1303 /* XXX: not entirely sure why we don't clear this */
1305 } else if (transport_sub_state & PendingLoopDeclickOut) {
1306 /* Return the declick out first ... */
1307 transport_sub_state &= ~PendingLoopDeclickOut;
1309 } else if (transport_sub_state & PendingLoopDeclickIn) {
1310 /* ... then the declick in on the next call */
1311 transport_sub_state &= ~PendingLoopDeclickIn;
1318 bool maybe_stop (framepos_t limit);
1319 bool maybe_sync_start (pframes_t &);
1321 void check_declick_out ();
1327 /** Number of process frames since the last MTC output (when sending MTC); used to
1328 * know when to send full MTC messages every so often.
1330 pframes_t _pframes_since_last_mtc;
1331 bool session_midi_feedback;
1334 framepos_t last_loopend;
1336 boost::scoped_ptr<SessionDirectory> _session_dir;
1339 void graph_reordered ();
1341 /** current snapshot name, without the .ardour suffix */
1342 void set_snapshot_name (const std::string &);
1343 void save_snapshot_name (const std::string &);
1344 std::string _current_snapshot_name;
1346 XMLTree* state_tree;
1347 bool state_was_pending;
1348 StateOfTheState _state_of_the_state;
1350 friend class StateProtector;
1351 gint _suspend_save; /* atomic */
1352 volatile bool _save_queued;
1353 Glib::Threads::Mutex save_state_lock;
1354 Glib::Threads::Mutex peak_cleanup_lock;
1356 int load_options (const XMLNode&);
1357 int load_state (std::string snapshot_name);
1359 framepos_t _last_roll_location;
1360 /** the session frame time at which we last rolled, located, or changed transport direction */
1361 framepos_t _last_roll_or_reversal_location;
1362 framepos_t _last_record_location;
1364 bool pending_locate_roll;
1365 framepos_t pending_locate_frame;
1366 bool pending_locate_flush;
1368 bool pending_auto_loop;
1370 PBD::ReallocPool _mempool;
1372 Glib::Threads::Mutex lua_lock;
1373 luabridge::LuaRef * _lua_run;
1374 luabridge::LuaRef * _lua_add;
1375 luabridge::LuaRef * _lua_del;
1376 luabridge::LuaRef * _lua_list;
1377 luabridge::LuaRef * _lua_load;
1378 luabridge::LuaRef * _lua_save;
1379 luabridge::LuaRef * _lua_cleanup;
1380 uint32_t _n_lua_scripts;
1383 void try_run_lua (pframes_t);
1387 static const PostTransportWork ProcessCannotProceedMask =
1389 PostTransportInputChange|
1391 PostTransportReverse|
1392 PostTransportCurveRealloc|
1393 PostTransportAudition|
1394 PostTransportLocate|
1396 PostTransportClearSubstate);
1398 gint _post_transport_work; /* accessed only atomic ops */
1399 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1400 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1401 void add_post_transport_work (PostTransportWork ptw);
1403 void schedule_playback_buffering_adjustment ();
1404 void schedule_capture_buffering_adjustment ();
1406 uint32_t cumulative_rf_motion;
1409 void set_rf_speed (float speed);
1410 void reset_rf_scale (framecnt_t frames_moved);
1412 Locations* _locations;
1413 void location_added (Location*);
1414 void location_removed (Location*);
1415 void locations_changed ();
1416 void _locations_changed (const Locations::LocationList&);
1418 void update_skips (Location*, bool consolidate);
1419 void update_marks (Location* loc);
1420 void consolidate_skips (Location*);
1421 void sync_locations_to_skips ();
1422 void _sync_locations_to_skips ();
1424 PBD::ScopedConnectionList skip_update_connections;
1425 bool _ignore_skips_updates;
1427 PBD::ScopedConnectionList punch_connections;
1428 void auto_punch_start_changed (Location *);
1429 void auto_punch_end_changed (Location *);
1430 void auto_punch_changed (Location *);
1432 PBD::ScopedConnectionList loop_connections;
1433 void auto_loop_changed (Location *);
1434 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1436 int ensure_engine (uint32_t desired_sample_rate, bool);
1437 void pre_engine_init (std::string path);
1438 int post_engine_init ();
1439 int immediately_post_engine ();
1440 void remove_empty_sounds ();
1442 void session_loaded ();
1444 void setup_midi_control ();
1445 int midi_read (MIDI::Port *);
1447 void enable_record ();
1449 void increment_transport_position (framecnt_t val) {
1450 if (max_framepos - val < _transport_frame) {
1451 _transport_frame = max_framepos;
1453 _transport_frame += val;
1457 void decrement_transport_position (framecnt_t val) {
1458 if (val < _transport_frame) {
1459 _transport_frame -= val;
1461 _transport_frame = 0;
1465 void post_transport_motion ();
1466 static void *session_loader_thread (void *arg);
1470 /* Signal Forwarding */
1471 void emit_route_signals ();
1472 void emit_thread_run ();
1473 static void *emit_thread (void *);
1474 void emit_thread_start ();
1475 void emit_thread_terminate ();
1477 pthread_t _rt_emit_thread;
1478 bool _rt_thread_active;
1480 pthread_mutex_t _rt_emit_mutex;
1481 pthread_cond_t _rt_emit_cond;
1482 bool _rt_emit_pending;
1484 /* Auto Connect Thread */
1485 static void *auto_connect_thread (void *);
1486 void auto_connect_thread_run ();
1487 void auto_connect_thread_start ();
1488 void auto_connect_thread_terminate ();
1490 pthread_t _auto_connect_thread;
1491 bool _ac_thread_active;
1492 pthread_mutex_t _auto_connect_mutex;
1493 pthread_cond_t _auto_connect_cond;
1495 struct AutoConnectRequest {
1497 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1498 const ChanCount& is,
1499 const ChanCount& os,
1500 const ChanCount& io,
1501 const ChanCount& oo)
1502 : route (boost::weak_ptr<Route> (r))
1503 , connect_inputs (ci)
1507 , output_offset (oo)
1510 boost::weak_ptr <Route> route;
1511 bool connect_inputs;
1512 ChanCount input_start;
1513 ChanCount output_start;
1514 ChanCount input_offset;
1515 ChanCount output_offset;
1518 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1519 Glib::Threads::Mutex _auto_connect_queue_lock;
1520 AutoConnectQueue _auto_connect_queue;
1521 guint _latency_recompute_pending;
1523 void auto_connect (const AutoConnectRequest&);
1524 void queue_latency_recompute ();
1526 /* SessionEventManager interface */
1528 void process_event (SessionEvent*);
1529 void set_next_event ();
1530 void cleanup_event (SessionEvent*,int);
1532 /* MIDI Machine Control */
1535 void spp_continue ();
1538 void mmc_deferred_play (MIDI::MachineControl &);
1539 void mmc_stop (MIDI::MachineControl &);
1540 void mmc_step (MIDI::MachineControl &, int);
1541 void mmc_pause (MIDI::MachineControl &);
1542 void mmc_record_pause (MIDI::MachineControl &);
1543 void mmc_record_strobe (MIDI::MachineControl &);
1544 void mmc_record_exit (MIDI::MachineControl &);
1545 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1546 void mmc_fast_forward (MIDI::MachineControl &);
1547 void mmc_rewind (MIDI::MachineControl &);
1548 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1549 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1550 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1552 struct timeval last_mmc_step;
1555 typedef boost::function<bool()> MidiTimeoutCallback;
1556 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1558 MidiTimeoutList midi_timeouts;
1559 bool mmc_step_timeout ();
1560 void send_immediate_mmc (MIDI::MachineControlCommand);
1562 MIDI::byte mtc_msg[16];
1563 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1564 MIDI::byte midi_msg[16];
1565 double outbound_mtc_timecode_frame;
1566 Timecode::Time transmitting_timecode_time;
1567 int next_quarter_frame_to_send;
1569 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1570 framecnt_t _frames_per_hour;
1571 framecnt_t _timecode_frames_per_hour;
1573 /* cache the most-recently requested time conversions. This helps when we
1574 * have multiple clocks showing the same time (e.g. the transport frame) */
1575 bool last_timecode_valid;
1576 framepos_t last_timecode_when;
1577 Timecode::Time last_timecode;
1579 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1581 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1583 LTCEncoder* ltc_encoder;
1584 ltcsnd_sample_t* ltc_enc_buf;
1586 Timecode::TimecodeFormat ltc_enc_tcformat;
1587 int32_t ltc_buf_off;
1588 int32_t ltc_buf_len;
1591 int32_t ltc_enc_byte;
1592 framepos_t ltc_enc_pos;
1594 framepos_t ltc_enc_off;
1596 framepos_t ltc_prev_cycle;
1598 framepos_t ltc_timecode_offset;
1599 bool ltc_timecode_negative_offset;
1601 LatencyRange ltc_out_latency;
1603 void ltc_tx_initialize();
1604 void ltc_tx_cleanup();
1605 void ltc_tx_reset();
1606 void ltc_tx_resync_latency();
1607 void ltc_tx_recalculate_position();
1608 void ltc_tx_parse_offset();
1609 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1611 void reset_record_status ();
1613 int no_roll (pframes_t nframes);
1614 int fail_roll (pframes_t nframes);
1616 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1617 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1619 MidiControlUI* midi_control_ui;
1621 int start_midi_thread ();
1623 void set_play_loop (bool yn, double speed);
1624 void unset_play_loop ();
1625 void overwrite_some_buffers (Track *);
1626 void flush_all_inserts ();
1627 int micro_locate (framecnt_t distance);
1628 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1629 void start_locate (framepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1630 void force_locate (framepos_t frame, bool with_roll = false);
1631 void set_track_speed (Track *, double speed);
1632 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1633 void stop_transport (bool abort = false, bool clear_state = false);
1634 void start_transport ();
1635 void realtime_stop (bool abort, bool clear_state);
1636 void realtime_locate ();
1637 void non_realtime_start_scrub ();
1638 void non_realtime_set_speed ();
1639 void non_realtime_locate ();
1640 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1641 void non_realtime_overwrite (int entry_request_count, bool& finished);
1642 void post_transport ();
1643 void engine_halted ();
1644 void xrun_recovery ();
1645 void set_track_loop (bool);
1646 bool select_playhead_priority_target (framepos_t&);
1647 void follow_playhead_priority ();
1649 /* These are synchronous and so can only be called from within the process
1653 int send_full_time_code (framepos_t, pframes_t nframes);
1654 void send_song_position_pointer (framepos_t);
1656 TempoMap *_tempo_map;
1657 void tempo_map_changed (const PBD::PropertyChange&);
1658 void gui_tempo_map_changed ();
1660 /* edit/mix groups */
1662 int load_route_groups (const XMLNode&, int);
1664 std::list<RouteGroup *> _route_groups;
1665 RouteGroup* _all_route_group;
1669 boost::shared_ptr<Graph> _process_graph;
1671 SerializedRCUManager<RouteList> routes;
1673 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save, PresentationInfo::order_t);
1674 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect, PresentationInfo::order_t);
1675 bool _adding_routes_in_progress;
1676 bool _reconnecting_routes_in_progress;
1677 bool _route_deletion_in_progress;
1679 uint32_t destructive_index;
1681 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1682 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1684 void route_processors_changed (RouteProcessorChange);
1686 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1687 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1688 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1689 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1691 /* track numbering */
1693 void reassign_track_numbers ();
1694 uint32_t _track_number_decimals;
1696 /* solo/mute/notifications */
1698 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1699 void route_mute_changed ();
1700 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1701 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1703 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1705 void listen_position_changed ();
1706 void solo_control_mode_changed ();
1708 /* REGION MANAGEMENT */
1710 mutable Glib::Threads::Mutex region_lock;
1712 int load_regions (const XMLNode& node);
1713 int load_compounds (const XMLNode& node);
1715 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1716 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1717 void route_group_property_changed (RouteGroup *);
1721 mutable Glib::Threads::Mutex source_lock;
1724 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1727 void reset_write_sources (bool mark_write_complete, bool force = false);
1732 int load_sources (const XMLNode& node);
1733 XMLNode& get_sources_as_xml ();
1735 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1739 void remove_playlist (boost::weak_ptr<Playlist>);
1740 void track_playlist_changed (boost::weak_ptr<Track>);
1741 void playlist_region_added (boost::weak_ptr<Region>);
1742 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1743 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1745 /* CURVES and AUTOMATION LISTS */
1746 std::map<PBD::ID, AutomationList*> automation_lists;
1748 /* DEFAULT FADE CURVES */
1750 float default_fade_steepness;
1751 float default_fade_msecs;
1755 boost::shared_ptr<Auditioner> auditioner;
1756 void set_audition (boost::shared_ptr<Region>);
1757 void non_realtime_set_audition ();
1758 boost::shared_ptr<Region> pending_audition_region;
1764 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1766 /* INSERT AND SEND MANAGEMENT */
1768 boost::dynamic_bitset<uint32_t> send_bitset;
1769 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1770 boost::dynamic_bitset<uint32_t> return_bitset;
1771 boost::dynamic_bitset<uint32_t> insert_bitset;
1775 struct space_and_path {
1776 uint32_t blocks; ///< 4kB blocks
1777 bool blocks_unknown; ///< true if blocks is unknown
1782 , blocks_unknown (true)
1786 struct space_and_path_ascending_cmp {
1787 bool operator() (space_and_path a, space_and_path b) {
1788 if (a.blocks_unknown != b.blocks_unknown) {
1789 return !a.blocks_unknown;
1791 return a.blocks > b.blocks;
1795 void setup_raid_path (std::string path);
1797 std::vector<space_and_path> session_dirs;
1798 std::vector<space_and_path>::iterator last_rr_session_dir;
1799 uint32_t _total_free_4k_blocks;
1800 /** If this is true, _total_free_4k_blocks is not definite,
1801 as one or more of the session directories' filesystems
1802 could not report free space.
1804 bool _total_free_4k_blocks_uncertain;
1805 Glib::Threads::Mutex space_lock;
1807 bool no_questions_about_missing_files;
1809 std::string get_best_session_directory_for_new_audio ();
1811 mutable gint _playback_load;
1812 mutable gint _capture_load;
1816 SerializedRCUManager<BundleList> _bundles;
1817 XMLNode* _bundle_xml_node;
1818 int load_bundles (XMLNode const &);
1820 UndoHistory _history;
1821 /** current undo transaction, or 0 */
1822 UndoTransaction* _current_trans;
1823 /** GQuarks to describe the reversible commands that are currently in progress.
1824 * These may be nested, in which case more recently-started commands are toward
1825 * the front of the list.
1827 std::list<GQuark> _current_trans_quarks;
1829 int backend_sync_callback (TransportState, framepos_t);
1831 void process_rtop (SessionEvent*);
1833 void update_latency (bool playback);
1835 XMLNode& state(bool);
1838 typedef std::list<Click*> Clicks;
1841 boost::shared_ptr<IO> _click_io;
1842 boost::shared_ptr<Amp> _click_gain;
1844 Sample* click_emphasis_data;
1845 framecnt_t click_length;
1846 framecnt_t click_emphasis_length;
1847 mutable Glib::Threads::RWLock click_lock;
1849 static const Sample default_click[];
1850 static const framecnt_t default_click_length;
1851 static const Sample default_click_emphasis[];
1852 static const framecnt_t default_click_emphasis_length;
1855 framepos_t _clicks_cleared;
1856 void setup_click_sounds (int which);
1857 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1858 void clear_clicks ();
1859 void click (framepos_t start, framecnt_t nframes);
1861 std::vector<Route*> master_outs;
1863 /* range playback */
1865 std::list<AudioRange> current_audio_range;
1867 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1868 void unset_play_range ();
1870 /* temporary hacks to allow selection to be pushed from GUI into backend
1871 Whenever we move the selection object into libardour, these will go away.
1873 Evoral::Range<framepos_t> _range_selection;
1874 Evoral::Range<framepos_t> _object_selection;
1879 boost::shared_ptr<Route> _master_out;
1880 boost::shared_ptr<Route> _monitor_out;
1882 void auto_connect_master_bus ();
1884 /* Windows VST support */
1886 long _windows_vst_callback (
1895 int find_all_sources (std::string path, std::set<std::string>& result);
1896 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1898 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1899 Glib::Threads::Mutex controllables_lock;
1900 Controllables controllables;
1902 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1904 void reset_native_file_format();
1905 bool first_file_data_format_reset;
1906 bool first_file_header_format_reset;
1908 void config_changed (std::string, bool);
1910 XMLNode& get_control_protocol_state ();
1912 void set_history_depth (uint32_t depth);
1914 static bool _disable_all_loaded_plugins;
1915 static bool _bypass_all_loaded_plugins;
1917 mutable bool have_looped; ///< Used in ::audible_frame(*)
1919 void update_route_record_state ();
1920 gint _have_rec_enabled_track;
1921 gint _have_rec_disabled_track;
1923 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1925 /* realtime "apply to set of routes" operations */
1926 template<typename T> SessionEvent*
1927 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1928 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1929 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1930 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1931 ev->rt_return = after;
1932 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1937 /* specialized version realtime "apply to set of routes" operations */
1938 template<typename T1, typename T2> SessionEvent*
1939 get_rt_event (boost::shared_ptr<RouteList> rl, T1 t1arg, T2 t2arg, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1940 void (Session::*method) (boost::shared_ptr<RouteList>, T1, T2, PBD::Controllable::GroupControlDisposition)) {
1941 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1942 ev->rt_slot = boost::bind (method, this, rl, t1arg, t2arg, group_override);
1943 ev->rt_return = after;
1944 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1949 /* specialized version realtime "apply to set of controls" operations */
1950 SessionEvent* get_rt_event (boost::shared_ptr<ControlList> cl, double arg, PBD::Controllable::GroupControlDisposition group_override) {
1951 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1952 ev->rt_slot = boost::bind (&Session::rt_set_controls, this, cl, arg, group_override);
1953 ev->rt_return = Session::rt_cleanup;
1954 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1959 void rt_set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition group_override);
1960 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1962 /** temporary list of Diskstreams used only during load of 2.X sessions */
1963 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1965 void set_session_range_location (framepos_t, framepos_t);
1967 void setup_midi_machine_control ();
1969 void step_edit_status_change (bool);
1970 uint32_t _step_editors;
1972 /** true if timecode transmission by the transport is suspended, otherwise false */
1973 mutable gint _suspend_timecode_transmission;
1975 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1977 void start_time_changed (framepos_t);
1978 void end_time_changed (framepos_t);
1980 void set_track_monitor_input_status (bool);
1981 framepos_t compute_stop_limit () const;
1983 boost::shared_ptr<Speakers> _speakers;
1984 void load_nested_sources (const XMLNode& node);
1986 /** The directed graph of routes that is currently being used for audio processing
1987 and solo/mute computations.
1989 GraphEdges _current_route_graph;
1991 void ensure_route_presentation_info_gap (PresentationInfo::order_t, uint32_t gap_size);
1992 bool ignore_route_processor_changes;
1994 MidiClockTicker* midi_clock;
1996 boost::shared_ptr<IO> _ltc_input;
1997 boost::shared_ptr<IO> _ltc_output;
1999 /* Scene Changing */
2000 SceneChanger* _scene_changer;
2002 /* persistent, non-track related MIDI ports */
2003 MidiPortManager* _midi_ports;
2004 MIDI::MachineControl* _mmc;
2007 void setup_click ();
2008 void setup_click_state (const XMLNode*);
2009 void setup_bundles ();
2011 void save_as_bring_callback (uint32_t, uint32_t, std::string);
2013 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
2014 static const uint32_t session_end_shift;
2016 std::string _template_state_dir;
2018 VCAManager* _vca_manager;
2020 boost::shared_ptr<Route> get_midi_nth_route_by_id (PresentationInfo::order_t n) const;
2022 std::string created_with;
2024 bool _midi_regions_use_bbt_beats;
2028 } // namespace ARDOUR
2030 #endif /* __ardour_session_h__ */