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;
125 class MidiClockTicker;
127 class MidiPortManager;
147 class SessionDirectory;
148 class SessionMetadata;
149 class SessionPlaylists;
156 class WindowsVSTPlugin;
158 extern void setup_enum_writer ();
160 class LIBARDOUR_API SessionException: public std::exception {
162 explicit SessionException(const std::string msg) : _message(msg) {}
163 virtual ~SessionException() throw() {}
165 virtual const char* what() const throw() { return _message.c_str(); }
168 std::string _message;
171 /** Ardour Session */
172 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
176 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
177 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
178 StopPendingCapture = 0x4,
179 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
180 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
181 PendingLocate = 0x20,
191 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
192 the bus profile can be null if no master out bus is required.
195 Session (AudioEngine&,
196 const std::string& fullpath,
197 const std::string& snapshot_name,
198 BusProfile* bus_profile = 0,
199 std::string mix_template = "");
203 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format, std::string& program_version);
204 static std::string get_snapshot_from_instant (const std::string& session_dir);
206 /** a monotonic counter used for naming user-visible things uniquely
207 * (curently the sidechain port).
208 * Use sparingly to keep the numbers low, prefer PBD::ID for all
209 * internal, not user-visible IDs */
210 static unsigned int next_name_id ();
212 std::string path() const { return _path; }
213 std::string name() const { return _name; }
214 std::string snap_name() const { return _current_snapshot_name; }
215 std::string raid_path () const;
216 bool path_is_within_session (const std::string&);
218 bool writable() const { return _writable; }
221 bool dirty() const { return _state_of_the_state & Dirty; }
222 void set_deletion_in_progress ();
223 void clear_deletion_in_progress ();
224 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
225 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
226 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
227 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
228 bool loading () const { return _state_of_the_state & Loading; }
230 PBD::Signal0<void> DirtyChanged;
232 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
234 static PBD::Signal1<void,std::string> Dialog;
236 PBD::Signal0<void> BatchUpdateStart;
237 PBD::Signal0<void> BatchUpdateEnd;
239 int ensure_subdirs ();
241 std::string automation_dir () const; ///< Automation data
242 std::string analysis_dir () const; ///< Analysis data
243 std::string plugins_dir () const; ///< Plugin state
244 std::string externals_dir () const; ///< Links to external files
246 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
248 bool audio_source_name_is_unique (const std::string& name);
249 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);
250 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
251 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
252 std::string new_midi_source_path (const std::string&);
253 /** create a new track or bus from a template (XML path)
254 * @param how_many how many tracks or busses to create
255 * @param template_path path to xml template file
256 * @param name name (prefix) of the route to create
257 * @param pd Playlist disposition
258 * @return list of newly created routes
260 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);
261 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
262 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path,
263 uint32_t channels, std::vector<std::string> const & smf_track_names);
265 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
267 void process (pframes_t nframes);
269 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
270 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
271 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
272 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
273 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
275 bool have_rec_enabled_track () const;
276 bool have_rec_disabled_track () const;
278 bool have_captured() const { return _have_captured; }
280 void refill_all_track_buffers ();
281 Butler* butler() { return _butler; }
282 void butler_transport_work ();
284 void refresh_disk_space ();
286 int load_diskstreams_2X (XMLNode const &, int);
288 int load_routes (const XMLNode&, int);
289 boost::shared_ptr<RouteList> get_routes() const {
290 return routes.reader ();
293 CoreSelection& selection () { return *_selection; }
295 /* because the set of Stripables consists of objects managed
296 * independently, in multiple containers within the Session (or objects
297 * owned by the session), we fill out a list in-place rather than
298 * return a pointer to a copy of the (RCU) managed list, as happens
302 void get_stripables (StripableList&) const;
303 boost::shared_ptr<RouteList> get_tracks() const;
304 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
305 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
307 uint32_t nroutes() const { return routes.reader()->size(); }
308 uint32_t ntracks () const;
309 uint32_t nbusses () const;
311 boost::shared_ptr<BundleList> bundles () {
312 return _bundles.reader ();
315 struct LIBARDOUR_API RoutePublicOrderSorter {
316 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
319 void notify_presentation_info_change ();
321 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
322 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
323 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
325 static char session_name_is_legal (const std::string&);
326 bool io_name_is_legal (const std::string&) const;
327 boost::shared_ptr<Route> route_by_name (std::string) const;
328 boost::shared_ptr<Route> route_by_id (PBD::ID) const;
329 boost::shared_ptr<Stripable> stripable_by_id (PBD::ID) const;
330 boost::shared_ptr<Stripable> get_remote_nth_stripable (PresentationInfo::order_t n, PresentationInfo::Flag) const;
331 boost::shared_ptr<Route> get_remote_nth_route (PresentationInfo::order_t n) const;
332 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt) const;
333 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID) const;
334 void routes_using_input_from (const std::string& str, RouteList& rl);
336 bool route_name_unique (std::string) const;
337 bool route_name_internal (std::string) const;
339 uint32_t track_number_decimals () const {
340 return _track_number_decimals;
343 bool get_record_enabled() const {
344 return (record_status () >= Enabled);
347 RecordState record_status() const {
348 return (RecordState) g_atomic_int_get (&_record_status);
351 bool actively_recording () const {
352 return record_status() == Recording;
355 bool record_enabling_legal () const;
356 void maybe_enable_record (bool rt_context = false);
357 void disable_record (bool rt_context, bool force = false);
358 void step_back_from_record ();
360 void set_all_tracks_record_enabled(bool);
362 void maybe_write_autosave ();
364 /* Emitted when all i/o connections are complete */
366 PBD::Signal0<void> IOConnectionsComplete;
368 /* Timecode status signals */
369 PBD::Signal1<void, bool> MTCSyncStateChanged;
370 PBD::Signal1<void, bool> LTCSyncStateChanged;
372 /* Record status signals */
374 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
375 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
376 from the previous signal and session state.
378 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
380 /* Emited when session is loaded */
381 PBD::Signal0<void> SessionLoaded;
383 /* Transport mechanism signals */
385 /** Emitted on the following changes in transport state:
386 * - stop (from the butler thread)
387 * - change in whether or not we are looping (from the process thread)
388 * - change in the play range (from the process thread)
389 * - start (from the process thread)
392 PBD::Signal0<void> TransportStateChange;
394 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
395 PBD::Signal1<void,framepos_t> Xrun;
396 PBD::Signal0<void> TransportLooped;
398 /** emitted when a locate has occurred */
399 PBD::Signal0<void> Located;
401 PBD::Signal1<void,RouteList&> RouteAdded;
402 /** Emitted when a property of one of our route groups changes.
403 * The parameter is the RouteGroup that has changed.
405 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
406 /** Emitted when a route is added to one of our route groups.
407 * First parameter is the RouteGroup, second is the route.
409 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
410 /** Emitted when a route is removed from one of our route groups.
411 * First parameter is the RouteGroup, second is the route.
413 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
415 /* Step Editing status changed */
416 PBD::Signal1<void,bool> StepEditStatusChange;
418 /* Timecode state signals */
419 PBD::Signal0<void> MtcOrLtcInputPortChanged;
421 void queue_event (SessionEvent*);
423 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
424 void request_bounded_roll (framepos_t start, framepos_t end);
425 void request_stop (bool abort = false, bool clear_state = false);
426 void request_locate (framepos_t frame, bool with_roll = false);
428 void request_play_loop (bool yn, bool leave_rolling = false);
429 bool get_play_loop () const { return play_loop; }
431 framepos_t last_transport_start () const { return _last_roll_location; }
433 void goto_start (bool and_roll = false);
434 void use_rf_shuttle_speed ();
435 void allow_auto_play (bool yn);
436 void request_transport_speed (double speed, bool as_default = true);
437 void request_transport_speed_nonzero (double, bool as_default = true);
438 void request_overwrite_buffer (Track *);
439 void adjust_playback_buffering();
440 void adjust_capture_buffering();
441 void request_track_speed (Track *, double speed);
442 void request_input_change_handling ();
444 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
445 bool declick_out_pending() const { return static_cast<bool>(transport_sub_state&(PendingDeclickOut)); }
446 bool transport_locked () const;
450 framepos_t current_end_frame () const;
451 framepos_t current_start_frame () const;
452 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
453 framecnt_t frame_rate () const { return _current_frame_rate; }
454 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
455 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
456 framecnt_t frames_per_hour () const { return _frames_per_hour; }
458 double samples_per_timecode_frame() const { return _samples_per_timecode_frame; }
459 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
461 MIDI::byte get_mtc_timecode_bits() const {
462 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
465 double timecode_frames_per_second() const;
466 bool timecode_drop_frames() const;
470 Locations *locations() { return _locations; }
472 PBD::Signal1<void,Location*> auto_loop_location_changed;
473 PBD::Signal1<void,Location*> auto_punch_location_changed;
474 PBD::Signal0<void> locations_modified;
476 void set_auto_punch_location (Location *);
477 void set_auto_loop_location (Location *);
478 void set_session_extents (framepos_t start, framepos_t end);
479 bool end_is_free () const { return _session_range_end_is_free; }
480 void set_end_is_free (bool);
481 int location_name(std::string& result, std::string base = std::string(""));
483 pframes_t get_block_size() const { return current_block_size; }
484 framecnt_t worst_output_latency () const { return _worst_output_latency; }
485 framecnt_t worst_input_latency () const { return _worst_input_latency; }
486 framecnt_t worst_track_latency () const { return _worst_track_latency; }
487 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
490 std::string new_parent_folder; /* parent folder where new session folder will be created */
491 std::string new_name; /* name of newly saved session */
492 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
493 bool include_media; /* true if the newly saved session should contain references to media */
494 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
495 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
497 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
499 /* emitted as we make progress. 3 arguments passed to signal
502 * 1: percentage complete measured as a fraction (0-1.0) of
503 * total data copying done.
504 * 2: number of files copied so far
505 * 3: total number of files to copy
507 * Handler should return true for save-as to continue, or false
508 * to stop (and remove all evidence of partial save-as).
510 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
512 /* if save_as() returns non-zero, this string will indicate the reason why.
514 std::string failure_message;
517 int save_as (SaveAs&);
519 * @param snapshot_name name of the session (use an empty string for the current name)
520 * @param pending save a 'recovery', not full state (default: false)
521 * @param switch_to_snapshot switch to given snapshot after saving (default: false)
522 * @param template_only save a session template (default: false)
523 * @return zero on success
525 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
533 int archive_session (const std::string&, const std::string&, ArchiveEncode compress_audio = FLAC_16BIT, bool only_used_sources = false, Progress* p = 0);
535 int restore_state (std::string snapshot_name);
536 int save_template (std::string template_name, bool replace_existing = false);
537 int save_history (std::string snapshot_name = "");
538 int restore_history (std::string snapshot_name);
539 void remove_state (std::string snapshot_name);
540 void rename_state (std::string old_name, std::string new_name);
541 void remove_pending_capture_state ();
542 int rename (const std::string&);
543 bool get_nsm_state () const { return _under_nsm_control; }
544 void set_nsm_state (bool state) { _under_nsm_control = state; }
545 bool save_default_options ();
547 PBD::Signal1<void,std::string> StateSaved;
548 PBD::Signal0<void> StateReady;
550 /* emitted when session needs to be saved due to some internal
551 * event or condition (i.e. not in response to a user request).
553 * Only one object should
554 * connect to this signal and take responsibility.
556 * Argument is the snapshot name to use when saving.
558 PBD::Signal1<void,std::string> SaveSessionRequested;
560 /* emitted during a session save to allow other entities to add state, via
561 * extra XML, to the session state
563 PBD::Signal0<void> SessionSaveUnderway;
565 std::vector<std::string> possible_states() const;
566 static std::vector<std::string> possible_states (std::string path);
568 XMLNode& get_state();
569 int set_state(const XMLNode& node, int version); // not idempotent
570 XMLNode& get_template();
571 bool export_track_state (boost::shared_ptr<RouteList> rl, const std::string& path);
573 /// The instant xml file is written to the session directory
574 void add_instant_xml (XMLNode&, bool write_to_config = true);
575 XMLNode* instant_xml (const std::string& str);
577 enum StateOfTheState {
582 InitialConnecting = 0x8,
588 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
590 class StateProtector {
592 StateProtector (Session* s) : _session (s) {
593 g_atomic_int_inc (&s->_suspend_save);
596 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
597 while (_session->_save_queued) {
598 _session->_save_queued = false;
599 _session->save_state ("");
607 class ProcessorChangeBlocker {
609 ProcessorChangeBlocker (Session* s, bool rc = true)
611 , _reconfigure_on_delete (rc)
613 g_atomic_int_inc (&s->_ignore_route_processor_changes);
615 ~ProcessorChangeBlocker () {
616 if (g_atomic_int_dec_and_test (&_session->_ignore_route_processor_changes)) {
617 if (_reconfigure_on_delete) {
618 _session->route_processors_changed (RouteProcessorChange ());
624 bool _reconfigure_on_delete;
627 RouteGroup* new_route_group (const std::string&);
628 void add_route_group (RouteGroup *);
629 void remove_route_group (RouteGroup* rg) { if (rg) remove_route_group (*rg); }
630 void remove_route_group (RouteGroup&);
631 void reorder_route_groups (std::list<RouteGroup*>);
633 RouteGroup* route_group_by_name (std::string);
634 RouteGroup& all_route_group() const;
636 PBD::Signal1<void,RouteGroup*> route_group_added;
637 PBD::Signal0<void> route_group_removed;
638 PBD::Signal0<void> route_groups_reordered;
640 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
641 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
646 std::list<RouteGroup*> const & route_groups () const {
647 return _route_groups;
650 /* fundamental operations. duh. */
652 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
655 RouteGroup* route_group,
657 std::string name_template,
658 PresentationInfo::order_t order,
659 TrackMode mode = Normal
662 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
663 const ChanCount& input, const ChanCount& output, bool strict_io,
664 boost::shared_ptr<PluginInfo> instrument,
665 Plugin::PresetRecord* pset,
666 RouteGroup* route_group, uint32_t how_many, std::string name_template,
667 PresentationInfo::order_t,
668 TrackMode mode = Normal
671 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);
672 RouteList new_midi_route (RouteGroup* route_group, uint32_t how_many, std::string name_template, bool strict_io, boost::shared_ptr<PluginInfo> instrument, Plugin::PresetRecord*, PresentationInfo::Flag, PresentationInfo::order_t);
674 void remove_routes (boost::shared_ptr<RouteList>);
675 void remove_route (boost::shared_ptr<Route>);
677 void resort_routes ();
678 void resort_routes_using (boost::shared_ptr<RouteList>);
680 AudioEngine & engine() { return _engine; }
681 AudioEngine const & engine () const { return _engine; }
683 static std::string default_track_name_pattern (DataType);
687 framepos_t transport_frame () const {return _transport_frame; }
688 framepos_t record_location () const {return _last_record_location; }
689 framepos_t audible_frame (bool* latent_locate = NULL) const;
690 framepos_t requested_return_frame() const { return _requested_return_frame; }
691 void set_requested_return_frame(framepos_t return_to);
705 void sync_time_vars();
707 void bbt_time (framepos_t when, Timecode::BBT_Time&);
708 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
709 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
710 void timecode_time (Timecode::Time &);
711 void timecode_time (framepos_t when, Timecode::Time&);
712 void timecode_time_subframes (framepos_t when, Timecode::Time&);
714 void timecode_duration (framecnt_t, Timecode::Time&) const;
715 void timecode_duration_string (char *, size_t len, framecnt_t) const;
717 framecnt_t convert_to_frames (AnyTime const & position);
718 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
720 static PBD::Signal1<void, framepos_t> StartTimeChanged;
721 static PBD::Signal1<void, framepos_t> EndTimeChanged;
723 void request_sync_source (Slave*);
724 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
725 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
726 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
728 double transport_speed() const { return _count_in_samples > 0 ? 0. : _transport_speed; }
729 bool transport_stopped() const { return _transport_speed == 0.0; }
730 bool transport_rolling() const { return _transport_speed != 0.0 && _count_in_samples == 0; }
732 bool silent () { return _silent; }
734 TempoMap& tempo_map() { return *_tempo_map; }
735 const TempoMap& tempo_map() const { return *_tempo_map; }
737 unsigned int get_xrun_count () const {return _xrun_count; }
738 void reset_xrun_count () {_xrun_count = 0; }
742 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
744 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
745 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
746 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
748 /* source management */
750 void import_files (ImportStatus&);
751 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
752 std::string build_tmp_convert_name (std::string file);
754 boost::shared_ptr<ExportHandler> get_export_handler ();
755 boost::shared_ptr<ExportStatus> get_export_status ();
757 int start_audio_export (framepos_t position, bool realtime = false, bool region_export = false, bool comensate_master_latency = false);
759 PBD::Signal1<int, framecnt_t> ProcessExport;
760 static PBD::Signal2<void,std::string, std::string> Exported;
762 void add_source (boost::shared_ptr<Source>);
763 void remove_source (boost::weak_ptr<Source>);
765 void cleanup_regions();
766 bool can_cleanup_peakfiles () const;
767 int cleanup_peakfiles ();
768 int cleanup_sources (CleanupReport&);
769 int cleanup_trash_sources (CleanupReport&);
771 int destroy_sources (std::list<boost::shared_ptr<Source> >);
773 int remove_last_capture ();
775 /** handlers should return 0 for "everything OK", and any other value for
776 * "cannot setup audioengine".
778 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
780 /** handlers should return -1 for "stop cleanup",
781 0 for "yes, delete this playlist",
782 1 for "no, don't delete this playlist".
784 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
786 /** handlers should return 0 for "ignore the rate mismatch",
787 !0 for "do not use this session"
789 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
791 /** non interactive message */
792 static PBD::Signal2<void, framecnt_t, framecnt_t> NotifyAboutSampleRateMismatch;
794 /** handlers should return !0 for use pending state, 0 for ignore it.
796 static PBD::Signal0<int> AskAboutPendingState;
798 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
799 size_t, std::string const &, uint32_t, bool destructive);
801 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
802 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
804 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
805 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
806 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
807 uint32_t count_sources_by_origin (const std::string&);
809 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
811 /* Curves and AutomationLists (TODO when they go away) */
812 void add_automation_list(AutomationList*);
816 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
817 void audition_playlist ();
818 void audition_region (boost::shared_ptr<Region>);
819 void cancel_audition ();
820 bool is_auditioning () const;
822 PBD::Signal1<void,bool> AuditionActive;
825 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
826 void unregister_lua_function (const std::string& name);
827 std::vector<std::string> registered_lua_functions ();
828 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
829 void scripts_changed (); // called from lua, updates _n_lua_scripts
831 PBD::Signal0<void> LuaScriptsChanged;
833 /* flattening stuff */
835 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
836 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
837 boost::shared_ptr<Processor> endpoint,
838 bool include_endpoint, bool for_export, bool for_freeze);
839 int freeze_all (InterThreadInfo&);
841 /* session-wide solo/mute/rec-enable */
844 std::vector<boost::weak_ptr<AutomationControl> > cancel_all_mute ();
846 bool soloing() const { return _non_soloed_outs_muted; }
847 bool listening() const { return _listen_cnt > 0; }
848 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
849 void cancel_all_solo ();
851 static const SessionEvent::RTeventCallback rt_cleanup;
853 void clear_all_solo_state (boost::shared_ptr<RouteList>);
855 /* Control-based methods */
857 void set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition);
858 void set_control (boost::shared_ptr<AutomationControl>, double val, PBD::Controllable::GroupControlDisposition);
860 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
862 PBD::Signal1<void,bool> SoloActive;
863 PBD::Signal0<void> SoloChanged;
864 PBD::Signal0<void> MuteChanged;
865 PBD::Signal0<void> IsolatedChanged;
866 PBD::Signal0<void> MonitorChanged;
868 PBD::Signal0<void> session_routes_reconnected;
870 /* monitor/master out */
872 void add_monitor_section ();
873 void reset_monitor_section ();
874 void remove_monitor_section ();
875 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
877 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
878 boost::shared_ptr<Route> master_out() const { return _master_out; }
880 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
881 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
882 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
883 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
884 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
885 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
886 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
888 static void set_disable_all_loaded_plugins (bool yn) {
889 _disable_all_loaded_plugins = yn;
891 static bool get_disable_all_loaded_plugins() {
892 return _disable_all_loaded_plugins;
894 static void set_bypass_all_loaded_plugins (bool yn) {
895 _bypass_all_loaded_plugins = yn;
897 static bool get_bypass_all_loaded_plugins() {
898 return _bypass_all_loaded_plugins;
901 uint32_t next_send_id();
902 uint32_t next_aux_send_id();
903 uint32_t next_return_id();
904 uint32_t next_insert_id();
905 void mark_send_id (uint32_t);
906 void mark_aux_send_id (uint32_t);
907 void mark_return_id (uint32_t);
908 void mark_insert_id (uint32_t);
909 void unmark_send_id (uint32_t);
910 void unmark_aux_send_id (uint32_t);
911 void unmark_return_id (uint32_t);
912 void unmark_insert_id (uint32_t);
914 /* s/w "RAID" management */
916 boost::optional<framecnt_t> available_capture_duration();
920 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
921 void remove_bundle (boost::shared_ptr<Bundle>);
922 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
924 PBD::Signal0<void> BundleAddedOrRemoved;
928 /* History (for editors, mixers, UIs etc.) */
930 /** Undo some transactions.
931 * @param n Number of transactions to undo.
933 void undo (uint32_t n);
934 /** Redo some transactions.
935 * @param n Number of transactions to undo.
937 void redo (uint32_t n);
939 UndoHistory& history() { return _history; }
941 uint32_t undo_depth() const { return _history.undo_depth(); }
942 uint32_t redo_depth() const { return _history.redo_depth(); }
943 std::string next_undo() const { return _history.next_undo(); }
944 std::string next_redo() const { return _history.next_redo(); }
946 /** begin collecting undo information
948 * This call must always be followed by either
949 * begin_reversible_command() or commit_reversible_command()
951 * @param cmd_name human readable name for the undo operation
953 void begin_reversible_command (const std::string& cmd_name);
954 void begin_reversible_command (GQuark);
955 /** abort an open undo command
956 * This must only be called after begin_reversible_command ()
958 void abort_reversible_command ();
959 /** finalize an undo command and commit pending transactions
961 * This must only be called after begin_reversible_command ()
962 * @param cmd (additional) command to add
964 void commit_reversible_command (Command* cmd = 0);
966 void add_command (Command *const cmd);
968 /** create an StatefulDiffCommand from the given object and add it to the stack.
970 * This function must only be called after begin_reversible_command.
971 * Failing to do so may lead to a crash.
973 * @param sfd the object to diff
974 * @returns the allocated StatefulDiffCommand (already added via add_command)
976 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
978 /** @return The list of operations that are currently in progress */
979 std::list<GQuark> const & current_operations () {
980 return _current_trans_quarks;
983 bool operation_in_progress (GQuark) const;
985 void add_commands (std::vector<Command*> const & cmds);
987 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
989 // these commands are implemented in libs/ardour/session_command.cc
990 Command* memento_command_factory(XMLNode* n);
991 Command* stateful_diff_command_factory (XMLNode *);
992 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
996 boost::shared_ptr<IO> click_io() { return _click_io; }
997 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
999 /* disk, buffer loads */
1001 uint32_t playback_load ();
1002 uint32_t capture_load ();
1006 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
1007 void request_cancel_play_range ();
1008 bool get_play_range () const { return _play_range; }
1010 void maybe_update_session_range (framepos_t, framepos_t);
1013 framecnt_t preroll_samples (framepos_t) const;
1015 void request_preroll_record_punch (framepos_t start, framecnt_t preroll);
1016 void request_preroll_record_trim (framepos_t start, framecnt_t preroll);
1017 void request_count_in_record ();
1019 framepos_t preroll_record_punch_pos () const { return _preroll_record_punch_pos; }
1020 bool preroll_record_punch_enabled () const { return _preroll_record_punch_pos >= 0; }
1022 framecnt_t preroll_record_trim_len () const { return _preroll_record_trim_len; }
1024 /* temporary hacks to allow selection to be pushed from GUI into backend.
1025 Whenever we move the selection object into libardour, these will go away.
1027 void set_range_selection (framepos_t start, framepos_t end);
1028 void set_object_selection (framepos_t start, framepos_t end);
1029 void clear_range_selection ();
1030 void clear_object_selection ();
1032 /* buffers for gain and pan */
1034 gain_t* gain_automation_buffer () const;
1035 gain_t* trim_automation_buffer () const;
1036 gain_t* send_gain_automation_buffer () const;
1037 pan_t** pan_automation_buffer () const;
1039 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
1043 static int vst_current_loading_id;
1044 static const char* vst_can_do_strings[];
1045 static const int vst_can_do_string_count;
1047 static intptr_t vst_callback (
1056 static PBD::Signal0<void> SendFeedback;
1060 boost::shared_ptr<Speakers> get_speakers ();
1064 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
1066 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
1067 boost::shared_ptr<AutomationControl> automation_control_by_id (const PBD::ID&);
1068 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const ARDOUR::ControllableDescriptor&);
1070 void add_controllable (boost::shared_ptr<PBD::Controllable>);
1071 void remove_controllable (PBD::Controllable*);
1073 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
1075 SessionConfiguration config;
1077 SessionConfiguration* cfg () { return &config; }
1079 bool exporting () const {
1083 bool bounce_processing() const {
1084 return _bounce_processing_active;
1087 /* this is a private enum, but setup_enum_writer() needs it,
1088 and i can't find a way to give that function
1089 friend access. sigh.
1092 enum PostTransportWork {
1093 PostTransportStop = 0x1,
1094 PostTransportDuration = 0x2,
1095 PostTransportLocate = 0x4,
1096 PostTransportRoll = 0x8,
1097 PostTransportAbort = 0x10,
1098 PostTransportOverWrite = 0x20,
1099 PostTransportSpeed = 0x40,
1100 PostTransportAudition = 0x80,
1101 PostTransportReverse = 0x100,
1102 PostTransportInputChange = 0x200,
1103 PostTransportCurveRealloc = 0x400,
1104 PostTransportClearSubstate = 0x800,
1105 PostTransportAdjustPlaybackBuffering = 0x1000,
1106 PostTransportAdjustCaptureBuffering = 0x2000
1115 SlaveState slave_state() const { return _slave_state; }
1116 Slave* slave() const { return _slave; }
1118 boost::shared_ptr<SessionPlaylists> playlists;
1120 void send_mmc_locate (framepos_t);
1121 void queue_full_time_code () { _send_timecode_update = true; }
1122 void queue_song_position_pointer () { /* currently does nothing */ }
1124 bool step_editing() const { return (_step_editors > 0); }
1126 void request_suspend_timecode_transmission ();
1127 void request_resume_timecode_transmission ();
1128 bool timecode_transmission_suspended () const;
1130 std::vector<std::string> source_search_path(DataType) const;
1131 void ensure_search_path_includes (const std::string& path, DataType type);
1132 void remove_dir_from_search_path (const std::string& path, DataType type);
1134 std::list<std::string> unknown_processors () const;
1136 /** Emitted when a feedback cycle has been detected within Ardour's signal
1137 processing path. Until it is fixed (by the user) some (unspecified)
1138 routes will not be run.
1140 static PBD::Signal0<void> FeedbackDetected;
1142 /** Emitted when a graph sort has successfully completed, which means
1143 that it has no feedback cycles.
1145 static PBD::Signal0<void> SuccessfulGraphSort;
1147 /* handlers can return an integer value:
1148 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1149 to modify the search path and we should try to find it again.
1150 1: quit entire session load
1151 2: as 0, but don't ask about other missing files
1152 3: don't ask about other missing files, and just mark this one missing
1153 -1: just mark this one missing
1154 any other value: as -1
1156 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1158 void set_missing_file_replacement (const std::string& mfr) {
1159 _missing_file_replacement = mfr;
1162 /** Emitted when the session wants Ardour to quit */
1163 static PBD::Signal0<void> Quit;
1165 /** Emitted when Ardour is asked to load a session in an older session
1166 * format, and makes a backup copy.
1168 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1170 SceneChanger* scene_changer() const { return _scene_changer; }
1172 /* asynchronous MIDI control ports */
1174 boost::shared_ptr<Port> midi_input_port () const;
1175 boost::shared_ptr<Port> midi_output_port () const;
1176 boost::shared_ptr<Port> mmc_output_port () const;
1177 boost::shared_ptr<Port> mmc_input_port () const;
1178 boost::shared_ptr<Port> scene_input_port () const;
1179 boost::shared_ptr<Port> scene_output_port () const;
1181 /* synchronous MIDI ports used for synchronization */
1183 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1184 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1185 boost::shared_ptr<MidiPort> mtc_output_port () const;
1186 boost::shared_ptr<MidiPort> mtc_input_port () const;
1187 boost::shared_ptr<Port> ltc_input_port() const;
1188 boost::shared_ptr<Port> ltc_output_port() const;
1190 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1191 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1193 MIDI::MachineControl& mmc() { return *_mmc; }
1195 void reconnect_midi_scene_ports (bool);
1196 void reconnect_mtc_ports ();
1197 void reconnect_mmc_ports (bool);
1199 void reconnect_ltc_input ();
1200 void reconnect_ltc_output ();
1202 VCAManager& vca_manager() { return *_vca_manager; }
1204 void auto_connect_thread_wakeup ();
1208 friend class AudioEngine;
1209 void set_block_size (pframes_t nframes);
1210 void set_frame_rate (framecnt_t nframes);
1211 #ifdef USE_TRACKS_CODE_FEATURES
1212 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1217 void schedule_curve_reallocation ();
1218 void update_latency_compensation (bool force = false);
1221 int create (const std::string& mix_template, BusProfile*);
1224 static guint _name_id_counter;
1225 static void init_name_id_counter (guint n);
1226 static unsigned int name_id_counter ();
1228 /* stuff used in process() should be close together to
1232 typedef void (Session::*process_function_type)(pframes_t);
1234 AudioEngine& _engine;
1235 mutable gint processing_prohibited;
1236 process_function_type process_function;
1237 process_function_type last_process_function;
1238 bool _bounce_processing_active;
1239 bool waiting_for_sync_offset;
1240 framecnt_t _base_frame_rate; // sample-rate of the session at creation time, "native" SR
1241 framecnt_t _nominal_frame_rate; // overridden by audioengine setting
1242 framecnt_t _current_frame_rate; // this includes video pullup offset
1243 int transport_sub_state;
1244 mutable gint _record_status;
1245 framepos_t _transport_frame;
1246 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1247 bool _session_range_end_is_free;
1251 // varispeed playback
1252 double _transport_speed;
1253 double _default_transport_speed;
1254 double _last_transport_speed;
1255 double _signalled_varispeed;
1256 double _target_transport_speed;
1257 CubicInterpolation interpolation;
1259 bool auto_play_legal;
1260 framepos_t _last_slave_transport_frame;
1261 framecnt_t maximum_output_latency;
1262 framepos_t _requested_return_frame;
1263 pframes_t current_block_size;
1264 framecnt_t _worst_output_latency;
1265 framecnt_t _worst_input_latency;
1266 framecnt_t _worst_track_latency;
1267 bool _have_captured;
1268 bool _non_soloed_outs_muted;
1270 uint32_t _listen_cnt;
1271 uint32_t _solo_isolated_cnt;
1274 bool _under_nsm_control;
1275 unsigned int _xrun_count;
1277 std::string _missing_file_replacement;
1279 void mtc_status_changed (bool);
1280 PBD::ScopedConnection mtc_status_connection;
1281 void ltc_status_changed (bool);
1282 PBD::ScopedConnection ltc_status_connection;
1284 void initialize_latencies ();
1285 void set_worst_io_latencies ();
1286 void set_worst_playback_latency ();
1287 void set_worst_capture_latency ();
1288 void set_worst_io_latencies_x (IOChange, void *) {
1289 set_worst_io_latencies ();
1291 void post_capture_latency ();
1292 void post_playback_latency ();
1294 void update_latency_compensation_proxy (void* ignored);
1296 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1298 void process_scrub (pframes_t);
1299 void process_without_events (pframes_t);
1300 void process_with_events (pframes_t);
1301 void process_audition (pframes_t);
1302 void process_export (pframes_t);
1303 void process_export_fw (pframes_t);
1305 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1306 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1307 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1309 static const framecnt_t bounce_chunk_size;
1311 /* slave tracking */
1313 static const int delta_accumulator_size = 25;
1314 int delta_accumulator_cnt;
1315 int32_t delta_accumulator[delta_accumulator_size];
1316 int32_t average_slave_delta;
1318 bool have_first_delta_accumulator;
1320 SlaveState _slave_state;
1323 framepos_t slave_wait_end;
1325 void reset_slave_state ();
1326 bool follow_slave (pframes_t);
1327 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1328 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1329 void follow_slave_silently (pframes_t nframes, float slave_speed);
1331 void switch_to_sync_source (SyncSource); /* !RT context */
1332 void drop_sync_source (); /* !RT context */
1333 void use_sync_source (Slave*); /* RT context */
1335 bool post_export_sync;
1336 framepos_t post_export_position;
1339 bool _export_rolling;
1340 bool _realtime_export;
1341 bool _region_export;
1342 framepos_t _export_preroll;
1343 framepos_t _export_latency;
1345 boost::shared_ptr<ExportHandler> export_handler;
1346 boost::shared_ptr<ExportStatus> export_status;
1349 int stop_audio_export ();
1350 void finalize_audio_export ();
1351 void finalize_export_internal (bool stop_freewheel);
1352 bool _pre_export_mmc_enabled;
1354 PBD::ScopedConnection export_freewheel_connection;
1356 void get_track_statistics ();
1357 int process_routes (pframes_t, bool& need_butler);
1358 int silent_process_routes (pframes_t, bool& need_butler);
1360 /** @return 1 if there is a pending declick fade-in,
1361 -1 if there is a pending declick fade-out,
1362 0 if there is no pending declick.
1364 int get_transport_declick_required () {
1365 if (transport_sub_state & PendingDeclickIn) {
1366 transport_sub_state &= ~PendingDeclickIn;
1368 } else if (transport_sub_state & PendingDeclickOut) {
1369 /* XXX: not entirely sure why we don't clear this */
1371 } else if (transport_sub_state & PendingLoopDeclickOut) {
1372 /* Return the declick out first ... */
1373 transport_sub_state &= ~PendingLoopDeclickOut;
1375 } else if (transport_sub_state & PendingLoopDeclickIn) {
1376 /* ... then the declick in on the next call */
1377 transport_sub_state &= ~PendingLoopDeclickIn;
1384 bool maybe_stop (framepos_t limit);
1385 bool maybe_sync_start (pframes_t &);
1387 void check_declick_out ();
1393 /** Number of process frames since the last MTC output (when sending MTC); used to
1394 * know when to send full MTC messages every so often.
1396 pframes_t _pframes_since_last_mtc;
1399 framepos_t last_loopend;
1401 boost::scoped_ptr<SessionDirectory> _session_dir;
1404 void graph_reordered ();
1406 /** current snapshot name, without the .ardour suffix */
1407 void set_snapshot_name (const std::string &);
1408 void save_snapshot_name (const std::string &);
1409 std::string _current_snapshot_name;
1411 XMLTree* state_tree;
1412 bool state_was_pending;
1413 StateOfTheState _state_of_the_state;
1415 friend class StateProtector;
1416 gint _suspend_save; /* atomic */
1417 volatile bool _save_queued;
1418 Glib::Threads::Mutex save_state_lock;
1419 Glib::Threads::Mutex peak_cleanup_lock;
1421 int load_options (const XMLNode&);
1422 int load_state (std::string snapshot_name);
1424 framepos_t _last_roll_location;
1425 /** the session frame time at which we last rolled, located, or changed transport direction */
1426 framepos_t _last_roll_or_reversal_location;
1427 framepos_t _last_record_location;
1429 bool pending_locate_roll;
1430 framepos_t pending_locate_frame;
1431 bool pending_locate_flush;
1433 bool pending_auto_loop;
1435 PBD::ReallocPool _mempool;
1437 Glib::Threads::Mutex lua_lock;
1438 luabridge::LuaRef * _lua_run;
1439 luabridge::LuaRef * _lua_add;
1440 luabridge::LuaRef * _lua_del;
1441 luabridge::LuaRef * _lua_list;
1442 luabridge::LuaRef * _lua_load;
1443 luabridge::LuaRef * _lua_save;
1444 luabridge::LuaRef * _lua_cleanup;
1445 uint32_t _n_lua_scripts;
1448 void try_run_lua (pframes_t);
1452 static const PostTransportWork ProcessCannotProceedMask =
1454 PostTransportInputChange|
1455 PostTransportReverse|
1456 PostTransportCurveRealloc|
1457 PostTransportAudition|
1458 PostTransportLocate|
1460 PostTransportClearSubstate);
1462 gint _post_transport_work; /* accessed only atomic ops */
1463 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1464 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1465 void add_post_transport_work (PostTransportWork ptw);
1467 void schedule_playback_buffering_adjustment ();
1468 void schedule_capture_buffering_adjustment ();
1470 uint32_t cumulative_rf_motion;
1473 void set_rf_speed (float speed);
1474 void reset_rf_scale (framecnt_t frames_moved);
1476 Locations* _locations;
1477 void location_added (Location*);
1478 void location_removed (Location*);
1479 void locations_changed ();
1480 void _locations_changed (const Locations::LocationList&);
1482 void update_skips (Location*, bool consolidate);
1483 void update_marks (Location* loc);
1484 void consolidate_skips (Location*);
1485 void sync_locations_to_skips ();
1486 void _sync_locations_to_skips ();
1488 PBD::ScopedConnectionList skip_update_connections;
1489 bool _ignore_skips_updates;
1491 PBD::ScopedConnectionList punch_connections;
1492 void auto_punch_start_changed (Location *);
1493 void auto_punch_end_changed (Location *);
1494 void auto_punch_changed (Location *);
1496 PBD::ScopedConnectionList loop_connections;
1497 void auto_loop_changed (Location *);
1498 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1500 int ensure_engine (uint32_t desired_sample_rate, bool);
1501 void pre_engine_init (std::string path);
1502 int post_engine_init ();
1503 int immediately_post_engine ();
1504 void remove_empty_sounds ();
1506 void session_loaded ();
1508 void setup_midi_control ();
1509 int midi_read (MIDI::Port *);
1511 void enable_record ();
1513 void increment_transport_position (framecnt_t val) {
1514 if (max_framepos - val < _transport_frame) {
1515 _transport_frame = max_framepos;
1517 _transport_frame += val;
1521 void decrement_transport_position (framecnt_t val) {
1522 if (val < _transport_frame) {
1523 _transport_frame -= val;
1525 _transport_frame = 0;
1529 void post_transport_motion ();
1530 static void *session_loader_thread (void *arg);
1534 /* Signal Forwarding */
1535 void emit_route_signals ();
1536 void emit_thread_run ();
1537 static void *emit_thread (void *);
1538 void emit_thread_start ();
1539 void emit_thread_terminate ();
1541 pthread_t _rt_emit_thread;
1542 bool _rt_thread_active;
1544 pthread_mutex_t _rt_emit_mutex;
1545 pthread_cond_t _rt_emit_cond;
1546 bool _rt_emit_pending;
1548 /* Auto Connect Thread */
1549 static void *auto_connect_thread (void *);
1550 void auto_connect_thread_run ();
1551 void auto_connect_thread_start ();
1552 void auto_connect_thread_terminate ();
1554 pthread_t _auto_connect_thread;
1555 gint _ac_thread_active;
1556 pthread_mutex_t _auto_connect_mutex;
1557 pthread_cond_t _auto_connect_cond;
1559 struct AutoConnectRequest {
1561 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1562 const ChanCount& is,
1563 const ChanCount& os,
1564 const ChanCount& io,
1565 const ChanCount& oo)
1566 : route (boost::weak_ptr<Route> (r))
1567 , connect_inputs (ci)
1571 , output_offset (oo)
1574 boost::weak_ptr <Route> route;
1575 bool connect_inputs;
1576 ChanCount input_start;
1577 ChanCount output_start;
1578 ChanCount input_offset;
1579 ChanCount output_offset;
1582 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1583 Glib::Threads::Mutex _auto_connect_queue_lock;
1584 AutoConnectQueue _auto_connect_queue;
1585 guint _latency_recompute_pending;
1587 void get_physical_ports (std::vector<std::string>& inputs, std::vector<std::string>& outputs, DataType type,
1588 MidiPortFlags include = MidiPortFlags (0),
1589 MidiPortFlags exclude = MidiPortFlags (0));
1591 void auto_connect (const AutoConnectRequest&);
1592 void queue_latency_recompute ();
1594 /* SessionEventManager interface */
1596 void process_event (SessionEvent*);
1597 void set_next_event ();
1598 void cleanup_event (SessionEvent*,int);
1600 /* MIDI Machine Control */
1603 void spp_continue ();
1606 void mmc_deferred_play (MIDI::MachineControl &);
1607 void mmc_stop (MIDI::MachineControl &);
1608 void mmc_step (MIDI::MachineControl &, int);
1609 void mmc_pause (MIDI::MachineControl &);
1610 void mmc_record_pause (MIDI::MachineControl &);
1611 void mmc_record_strobe (MIDI::MachineControl &);
1612 void mmc_record_exit (MIDI::MachineControl &);
1613 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1614 void mmc_fast_forward (MIDI::MachineControl &);
1615 void mmc_rewind (MIDI::MachineControl &);
1616 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1617 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1618 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1620 struct timeval last_mmc_step;
1623 typedef boost::function<bool()> MidiTimeoutCallback;
1624 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1626 MidiTimeoutList midi_timeouts;
1627 bool mmc_step_timeout ();
1628 void send_immediate_mmc (MIDI::MachineControlCommand);
1630 MIDI::byte mtc_msg[16];
1631 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1632 MIDI::byte midi_msg[16];
1633 double outbound_mtc_timecode_frame;
1634 Timecode::Time transmitting_timecode_time;
1635 int next_quarter_frame_to_send;
1637 double _samples_per_timecode_frame; /* has to be floating point because of drop frame */
1638 framecnt_t _frames_per_hour;
1639 framecnt_t _timecode_frames_per_hour;
1641 /* cache the most-recently requested time conversions. This helps when we
1642 * have multiple clocks showing the same time (e.g. the transport frame) */
1643 bool last_timecode_valid;
1644 framepos_t last_timecode_when;
1645 Timecode::Time last_timecode;
1647 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1649 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1651 LTCEncoder* ltc_encoder;
1652 ltcsnd_sample_t* ltc_enc_buf;
1654 Timecode::TimecodeFormat ltc_enc_tcformat;
1655 int32_t ltc_buf_off;
1656 int32_t ltc_buf_len;
1659 int32_t ltc_enc_byte;
1660 framepos_t ltc_enc_pos;
1662 framepos_t ltc_enc_off;
1664 framepos_t ltc_prev_cycle;
1666 framepos_t ltc_timecode_offset;
1667 bool ltc_timecode_negative_offset;
1669 LatencyRange ltc_out_latency;
1671 void ltc_tx_initialize();
1672 void ltc_tx_cleanup();
1673 void ltc_tx_reset();
1674 void ltc_tx_resync_latency();
1675 void ltc_tx_recalculate_position();
1676 void ltc_tx_parse_offset();
1677 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1679 void reset_record_status ();
1681 int no_roll (pframes_t nframes);
1682 int fail_roll (pframes_t nframes);
1684 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1685 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1687 MidiControlUI* midi_control_ui;
1689 int start_midi_thread ();
1691 void set_play_loop (bool yn, double speed);
1692 void unset_play_loop ();
1693 void overwrite_some_buffers (Track *);
1694 void flush_all_inserts ();
1695 int micro_locate (framecnt_t distance);
1696 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1697 void start_locate (framepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1698 void force_locate (framepos_t frame, bool with_roll = false);
1699 void set_track_speed (Track *, double speed);
1700 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1701 void stop_transport (bool abort = false, bool clear_state = false);
1702 void start_transport ();
1703 void realtime_stop (bool abort, bool clear_state);
1704 void realtime_locate ();
1705 void non_realtime_start_scrub ();
1706 void non_realtime_set_speed ();
1707 void non_realtime_locate ();
1708 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1709 void non_realtime_overwrite (int entry_request_count, bool& finished);
1710 void post_transport ();
1711 void engine_halted ();
1712 void xrun_recovery ();
1713 void set_track_loop (bool);
1714 bool select_playhead_priority_target (framepos_t&);
1715 void follow_playhead_priority ();
1717 /* These are synchronous and so can only be called from within the process
1721 int send_full_time_code (framepos_t, pframes_t nframes);
1722 void send_song_position_pointer (framepos_t);
1724 TempoMap *_tempo_map;
1725 void tempo_map_changed (const PBD::PropertyChange&);
1727 /* edit/mix groups */
1729 int load_route_groups (const XMLNode&, int);
1731 std::list<RouteGroup *> _route_groups;
1732 RouteGroup* _all_route_group;
1736 boost::shared_ptr<Graph> _process_graph;
1738 SerializedRCUManager<RouteList> routes;
1740 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save, PresentationInfo::order_t);
1741 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect, PresentationInfo::order_t);
1742 bool _adding_routes_in_progress;
1743 bool _reconnecting_routes_in_progress;
1744 bool _route_deletion_in_progress;
1746 uint32_t destructive_index;
1748 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1749 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1751 void route_processors_changed (RouteProcessorChange);
1753 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1754 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1755 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1756 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1758 /* track numbering */
1760 void reassign_track_numbers ();
1761 uint32_t _track_number_decimals;
1763 /* solo/mute/notifications */
1765 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1766 void route_mute_changed ();
1767 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1768 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1770 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1772 void listen_position_changed ();
1773 void solo_control_mode_changed ();
1775 /* REGION MANAGEMENT */
1777 mutable Glib::Threads::Mutex region_lock;
1779 int load_regions (const XMLNode& node);
1780 int load_compounds (const XMLNode& node);
1782 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1783 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1784 void route_group_property_changed (RouteGroup *);
1788 mutable Glib::Threads::Mutex source_lock;
1791 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1794 void reset_write_sources (bool mark_write_complete, bool force = false);
1799 int load_sources (const XMLNode& node);
1800 XMLNode& get_sources_as_xml ();
1802 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1806 void remove_playlist (boost::weak_ptr<Playlist>);
1807 void track_playlist_changed (boost::weak_ptr<Track>);
1808 void playlist_region_added (boost::weak_ptr<Region>);
1809 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1810 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1812 /* CURVES and AUTOMATION LISTS */
1813 std::map<PBD::ID, AutomationList*> automation_lists;
1815 /* DEFAULT FADE CURVES */
1817 float default_fade_steepness;
1818 float default_fade_msecs;
1822 boost::shared_ptr<Auditioner> auditioner;
1823 void set_audition (boost::shared_ptr<Region>);
1824 void non_realtime_set_audition ();
1825 boost::shared_ptr<Region> pending_audition_region;
1831 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1833 /* INSERT AND SEND MANAGEMENT */
1835 boost::dynamic_bitset<uint32_t> send_bitset;
1836 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1837 boost::dynamic_bitset<uint32_t> return_bitset;
1838 boost::dynamic_bitset<uint32_t> insert_bitset;
1842 struct space_and_path {
1843 uint32_t blocks; ///< 4kB blocks
1844 bool blocks_unknown; ///< true if blocks is unknown
1849 , blocks_unknown (true)
1853 struct space_and_path_ascending_cmp {
1854 bool operator() (space_and_path a, space_and_path b) {
1855 if (a.blocks_unknown != b.blocks_unknown) {
1856 return !a.blocks_unknown;
1858 return a.blocks > b.blocks;
1862 void setup_raid_path (std::string path);
1864 std::vector<space_and_path> session_dirs;
1865 std::vector<space_and_path>::iterator last_rr_session_dir;
1866 uint32_t _total_free_4k_blocks;
1867 /** If this is true, _total_free_4k_blocks is not definite,
1868 as one or more of the session directories' filesystems
1869 could not report free space.
1871 bool _total_free_4k_blocks_uncertain;
1872 Glib::Threads::Mutex space_lock;
1874 bool no_questions_about_missing_files;
1876 std::string get_best_session_directory_for_new_audio ();
1878 mutable gint _playback_load;
1879 mutable gint _capture_load;
1883 SerializedRCUManager<BundleList> _bundles;
1884 XMLNode* _bundle_xml_node;
1885 int load_bundles (XMLNode const &);
1887 UndoHistory _history;
1888 /** current undo transaction, or 0 */
1889 UndoTransaction* _current_trans;
1890 /** GQuarks to describe the reversible commands that are currently in progress.
1891 * These may be nested, in which case more recently-started commands are toward
1892 * the front of the list.
1894 std::list<GQuark> _current_trans_quarks;
1896 int backend_sync_callback (TransportState, framepos_t);
1898 void process_rtop (SessionEvent*);
1900 void update_latency (bool playback);
1902 XMLNode& state(bool);
1905 typedef std::list<Click*> Clicks;
1908 bool _click_rec_only;
1909 boost::shared_ptr<IO> _click_io;
1910 boost::shared_ptr<Amp> _click_gain;
1912 Sample* click_emphasis_data;
1913 framecnt_t click_length;
1914 framecnt_t click_emphasis_length;
1915 mutable Glib::Threads::RWLock click_lock;
1917 static const Sample default_click[];
1918 static const framecnt_t default_click_length;
1919 static const Sample default_click_emphasis[];
1920 static const framecnt_t default_click_emphasis_length;
1923 framepos_t _clicks_cleared;
1924 void setup_click_sounds (int which);
1925 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1926 void clear_clicks ();
1927 void click (framepos_t start, framecnt_t nframes);
1928 void run_click (framepos_t start, framecnt_t nframes);
1929 void add_click (framepos_t pos, bool emphasis);
1930 framecnt_t _count_in_samples;
1932 std::vector<Route*> master_outs;
1934 /* range playback */
1936 std::list<AudioRange> current_audio_range;
1938 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1939 void unset_play_range ();
1941 /* temporary hacks to allow selection to be pushed from GUI into backend
1942 Whenever we move the selection object into libardour, these will go away.
1944 Evoral::Range<framepos_t> _range_selection;
1945 Evoral::Range<framepos_t> _object_selection;
1947 void unset_preroll_record_punch ();
1948 void unset_preroll_record_trim ();
1950 framepos_t _preroll_record_punch_pos;
1951 framecnt_t _preroll_record_trim_len;
1952 bool _count_in_once;
1957 boost::shared_ptr<Route> _master_out;
1958 boost::shared_ptr<Route> _monitor_out;
1960 void auto_connect_master_bus ();
1962 int find_all_sources (std::string path, std::set<std::string>& result);
1963 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1965 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1966 Glib::Threads::Mutex controllables_lock;
1967 Controllables controllables;
1969 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1971 void reset_native_file_format();
1972 bool first_file_data_format_reset;
1973 bool first_file_header_format_reset;
1975 void config_changed (std::string, bool);
1977 XMLNode& get_control_protocol_state ();
1979 void set_history_depth (uint32_t depth);
1981 static bool _disable_all_loaded_plugins;
1982 static bool _bypass_all_loaded_plugins;
1984 mutable bool have_looped; ///< Used in ::audible_frame(*)
1986 void update_route_record_state ();
1987 gint _have_rec_enabled_track;
1988 gint _have_rec_disabled_track;
1990 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1992 /* realtime "apply to set of routes" operations */
1993 template<typename T> SessionEvent*
1994 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1995 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1996 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1997 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1998 ev->rt_return = after;
1999 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2004 /* specialized version realtime "apply to set of routes" operations */
2005 template<typename T1, typename T2> SessionEvent*
2006 get_rt_event (boost::shared_ptr<RouteList> rl, T1 t1arg, T2 t2arg, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
2007 void (Session::*method) (boost::shared_ptr<RouteList>, T1, T2, PBD::Controllable::GroupControlDisposition)) {
2008 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2009 ev->rt_slot = boost::bind (method, this, rl, t1arg, t2arg, group_override);
2010 ev->rt_return = after;
2011 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2016 /* specialized version realtime "apply to set of controls" operations */
2017 SessionEvent* get_rt_event (boost::shared_ptr<ControlList> cl, double arg, PBD::Controllable::GroupControlDisposition group_override) {
2018 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2019 ev->rt_slot = boost::bind (&Session::rt_set_controls, this, cl, arg, group_override);
2020 ev->rt_return = Session::rt_cleanup;
2021 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2026 void rt_set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition group_override);
2027 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
2029 /** temporary list of Diskstreams used only during load of 2.X sessions */
2030 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
2032 void set_session_range_location (framepos_t, framepos_t);
2034 void setup_midi_machine_control ();
2036 void step_edit_status_change (bool);
2037 uint32_t _step_editors;
2039 /** true if timecode transmission by the transport is suspended, otherwise false */
2040 mutable gint _suspend_timecode_transmission;
2042 void update_locations_after_tempo_map_change (const Locations::LocationList &);
2044 void start_time_changed (framepos_t);
2045 void end_time_changed (framepos_t);
2047 void set_track_monitor_input_status (bool);
2048 framepos_t compute_stop_limit () const;
2050 boost::shared_ptr<Speakers> _speakers;
2051 void load_nested_sources (const XMLNode& node);
2053 /** The directed graph of routes that is currently being used for audio processing
2054 and solo/mute computations.
2056 GraphEdges _current_route_graph;
2058 void ensure_route_presentation_info_gap (PresentationInfo::order_t, uint32_t gap_size);
2060 friend class ProcessorChangeBlocker;
2061 gint _ignore_route_processor_changes; /* atomic */
2063 MidiClockTicker* midi_clock;
2065 boost::shared_ptr<IO> _ltc_input;
2066 boost::shared_ptr<IO> _ltc_output;
2068 /* Scene Changing */
2069 SceneChanger* _scene_changer;
2071 /* persistent, non-track related MIDI ports */
2072 MidiPortManager* _midi_ports;
2073 MIDI::MachineControl* _mmc;
2076 void setup_click ();
2077 void setup_click_state (const XMLNode*);
2078 void setup_bundles ();
2080 void save_as_bring_callback (uint32_t, uint32_t, std::string);
2082 static const uint32_t session_end_shift;
2084 std::string _template_state_dir;
2086 VCAManager* _vca_manager;
2088 boost::shared_ptr<Route> get_midi_nth_route_by_id (PresentationInfo::order_t n) const;
2090 std::string created_with;
2092 void midi_track_presentation_info_changed (PBD::PropertyChange const &, boost::weak_ptr<MidiTrack>);
2093 void rewire_selected_midi (boost::shared_ptr<MidiTrack>);
2094 void rewire_midi_selection_ports ();
2095 boost::weak_ptr<MidiTrack> current_midi_target;
2097 CoreSelection* _selection;
2101 } // namespace ARDOUR
2103 #endif /* __ardour_session_h__ */