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__
24 #include "libardour-config.h"
36 #include <boost/dynamic_bitset.hpp>
37 #include <boost/scoped_ptr.hpp>
38 #include <boost/weak_ptr.hpp>
39 #include <boost/utility.hpp>
41 #include <glibmm/threads.h>
45 #include "pbd/error.h"
46 #include "pbd/event_loop.h"
47 #include "pbd/file_archive.h"
49 #include "pbd/reallocpool.h"
50 #include "pbd/statefuldestructible.h"
51 #include "pbd/signals.h"
54 #include "lua/luastate.h"
56 #include "evoral/Range.hpp"
58 #include "midi++/types.h"
59 #include "midi++/mmc.h"
61 #include "temporal/time.h"
63 #include "ardour/ardour.h"
64 #include "ardour/chan_count.h"
65 #include "ardour/delivery.h"
66 #include "ardour/interthread_info.h"
67 #include "ardour/luascripting.h"
68 #include "ardour/location.h"
69 #include "ardour/monitor_processor.h"
70 #include "ardour/presentation_info.h"
71 #include "ardour/rc_configuration.h"
72 #include "ardour/session_configuration.h"
73 #include "ardour/session_event.h"
74 #include "ardour/interpolation.h"
75 #include "ardour/plugin.h"
76 #include "ardour/presentation_info.h"
77 #include "ardour/route.h"
78 #include "ardour/route_graph.h"
84 typedef struct _AEffect AEffect;
108 class AudioFileSource;
113 class AutomationList;
126 class MidiClockTicker;
128 class MidiPortManager;
149 class SessionDirectory;
150 class SessionMetadata;
151 class SessionPlaylists;
155 class TransportMaster;
157 class UI_TransportMaster;
159 class WindowsVSTPlugin;
161 extern void setup_enum_writer ();
163 class LIBARDOUR_API SessionException: public std::exception {
165 explicit SessionException(const std::string msg) : _message(msg) {}
166 virtual ~SessionException() throw() {}
168 virtual const char* what() const throw() { return _message.c_str(); }
171 std::string _message;
174 /** Ardour Session */
175 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
186 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
187 the bus profile can be null if no master out bus is required.
190 Session (AudioEngine&,
191 const std::string& fullpath,
192 const std::string& snapshot_name,
193 BusProfile* bus_profile = 0,
194 std::string mix_template = "");
198 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format, std::string& program_version);
199 static std::string get_snapshot_from_instant (const std::string& session_dir);
201 /** a monotonic counter used for naming user-visible things uniquely
202 * (curently the sidechain port).
203 * Use sparingly to keep the numbers low, prefer PBD::ID for all
204 * internal, not user-visible IDs */
205 static unsigned int next_name_id ();
207 std::string path() const { return _path; }
208 std::string name() const { return _name; }
209 std::string snap_name() const { return _current_snapshot_name; }
210 std::string raid_path () const;
211 bool path_is_within_session (const std::string&);
213 bool writable() const { return _writable; }
216 bool dirty() const { return _state_of_the_state & Dirty; }
217 void set_deletion_in_progress ();
218 void clear_deletion_in_progress ();
219 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
220 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
221 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
222 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
223 bool loading () const { return _state_of_the_state & Loading; }
225 PBD::Signal0<void> DirtyChanged;
227 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
229 static PBD::Signal1<void,std::string> Dialog;
231 PBD::Signal0<void> BatchUpdateStart;
232 PBD::Signal0<void> BatchUpdateEnd;
234 int ensure_subdirs ();
236 std::string automation_dir () const; ///< Automation data
237 std::string analysis_dir () const; ///< Analysis data
238 std::string plugins_dir () const; ///< Plugin state
239 std::string externals_dir () const; ///< Links to external files
241 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
243 bool audio_source_name_is_unique (const std::string& name);
244 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);
245 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
246 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
247 std::string new_midi_source_path (const std::string&, bool need_source_lock = true);
248 /** create a new track or bus from a template (XML path)
249 * @param how_many how many tracks or busses to create
250 * @param template_path path to xml template file
251 * @param name name (prefix) of the route to create
252 * @param pd Playlist disposition
253 * @return list of newly created routes
255 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);
256 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
257 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path,
258 uint32_t channels, std::vector<std::string> const & smf_track_names);
260 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
262 void process (pframes_t nframes);
264 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
265 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
266 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
267 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
268 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
270 bool have_rec_enabled_track () const;
271 bool have_rec_disabled_track () const;
273 bool have_captured() const { return _have_captured; }
275 void refill_all_track_buffers ();
276 Butler* butler() { return _butler; }
277 void butler_transport_work ();
279 void refresh_disk_space ();
281 int load_routes (const XMLNode&, int);
282 boost::shared_ptr<RouteList> get_routes() const {
283 return routes.reader ();
286 boost::shared_ptr<RTTaskList> rt_tasklist () { return _rt_tasklist; }
288 RouteList get_routelist (bool mixer_order = false) const;
290 CoreSelection& selection () { return *_selection; }
292 /* because the set of Stripables consists of objects managed
293 * independently, in multiple containers within the Session (or objects
294 * owned by the session), we fill out a list in-place rather than
295 * return a pointer to a copy of the (RCU) managed list, as happens
299 void get_stripables (StripableList&) const;
300 StripableList get_stripables () const;
301 boost::shared_ptr<RouteList> get_tracks() const;
302 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
303 boost::shared_ptr<RouteList> get_routes_with_regions_at (samplepos_t const) const;
305 uint32_t nstripables (bool with_monitor = false) const;
306 uint32_t nroutes() const { return routes.reader()->size(); }
307 uint32_t ntracks () const;
308 uint32_t nbusses () const;
310 boost::shared_ptr<BundleList> bundles () {
311 return _bundles.reader ();
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> stripable_by_id (PBD::ID) const;
325 boost::shared_ptr<Stripable> get_remote_nth_stripable (PresentationInfo::order_t n, PresentationInfo::Flag) const;
326 boost::shared_ptr<Route> get_remote_nth_route (PresentationInfo::order_t n) const;
327 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt) 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 (bool rt_context = false);
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 /* Record status signals */
364 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
365 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
366 from the previous signal and session state.
368 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
370 /* Emited when session is loaded */
371 PBD::Signal0<void> SessionLoaded;
373 /* Transport mechanism signals */
375 /** Emitted on the following changes in transport state:
376 * - stop (from the butler thread)
377 * - change in whether or not we are looping (from the process thread)
378 * - change in the play range (from the process thread)
379 * - start (from the process thread)
382 PBD::Signal0<void> TransportStateChange;
384 PBD::Signal1<void,samplepos_t> PositionChanged; /* sent after any non-sequential motion */
385 PBD::Signal1<void,samplepos_t> Xrun;
386 PBD::Signal0<void> TransportLooped;
388 /** emitted when a locate has occurred */
389 PBD::Signal0<void> Located;
391 PBD::Signal1<void,RouteList&> RouteAdded;
392 /** Emitted when a property of one of our route groups changes.
393 * The parameter is the RouteGroup that has changed.
395 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
396 /** Emitted when a route is added to one of our route groups.
397 * First parameter is the RouteGroup, second is the route.
399 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
400 /** Emitted when a route is removed from one of our route groups.
401 * First parameter is the RouteGroup, second is the route.
403 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
405 /* Step Editing status changed */
406 PBD::Signal1<void,bool> StepEditStatusChange;
408 /* Timecode state signals */
409 PBD::Signal0<void> MtcOrLtcInputPortChanged;
411 void queue_event (SessionEvent*);
413 void request_roll_at_and_return (samplepos_t start, samplepos_t return_to);
414 void request_bounded_roll (samplepos_t start, samplepos_t end);
415 void request_stop (bool abort = false, bool clear_state = false, TransportRequestSource origin = TRS_UI);
416 void request_locate (samplepos_t sample, bool with_roll = false, TransportRequestSource origin = TRS_UI);
418 void request_play_loop (bool yn, bool leave_rolling = false);
419 bool get_play_loop () const { return play_loop; }
421 samplepos_t last_transport_start () const { return _last_roll_location; }
423 void goto_start (bool and_roll = false);
424 void use_rf_shuttle_speed ();
425 void allow_auto_play (bool yn);
426 void request_transport_speed (double speed, bool as_default = true, TransportRequestSource origin = TRS_UI);
427 void request_transport_speed_nonzero (double, bool as_default = true, TransportRequestSource origin = TRS_UI);
428 void request_overwrite_buffer (boost::shared_ptr<Route>);
429 void adjust_playback_buffering();
430 void adjust_capture_buffering();
432 bool global_locate_pending() const { return _global_locate_pending; }
433 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
434 bool transport_locked () const;
438 samplepos_t current_end_sample () const;
439 samplepos_t current_start_sample () const;
440 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
441 samplecnt_t sample_rate () const { return _current_sample_rate; }
442 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
443 samplecnt_t nominal_sample_rate () const { return _nominal_sample_rate; }
444 samplecnt_t frames_per_hour () const { return _frames_per_hour; }
446 double samples_per_timecode_frame() const { return _samples_per_timecode_frame; }
447 samplecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
449 MIDI::byte get_mtc_timecode_bits() const {
450 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
453 double timecode_frames_per_second() const;
454 bool timecode_drop_frames() const;
458 Locations *locations() { return _locations; }
460 PBD::Signal1<void,Location*> auto_loop_location_changed;
461 PBD::Signal1<void,Location*> auto_punch_location_changed;
462 PBD::Signal0<void> locations_modified;
464 void set_auto_punch_location (Location *);
465 void set_auto_loop_location (Location *);
466 void set_session_extents (samplepos_t start, samplepos_t end);
467 bool end_is_free () const { return _session_range_end_is_free; }
468 void set_end_is_free (bool);
470 pframes_t get_block_size () const { return current_block_size; }
471 samplecnt_t worst_output_latency () const { return _worst_output_latency; }
472 samplecnt_t worst_input_latency () const { return _worst_input_latency; }
473 samplecnt_t worst_route_latency () const { return _worst_route_latency; }
474 samplecnt_t worst_latency_preroll () const;
477 std::string new_parent_folder; /* parent folder where new session folder will be created */
478 std::string new_name; /* name of newly saved session */
479 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
480 bool include_media; /* true if the newly saved session should contain references to media */
481 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
482 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
484 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
486 /* emitted as we make progress. 3 arguments passed to signal
489 * 1: percentage complete measured as a fraction (0-1.0) of
490 * total data copying done.
491 * 2: number of files copied so far
492 * 3: total number of files to copy
494 * Handler should return true for save-as to continue, or false
495 * to stop (and remove all evidence of partial save-as).
497 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
499 /* if save_as() returns non-zero, this string will indicate the reason why.
501 std::string failure_message;
504 int save_as (SaveAs&);
507 * @param snapshot_name name of the session (use an empty string for the current name)
508 * @param pending save a 'recovery', not full state (default: false)
509 * @param switch_to_snapshot switch to given snapshot after saving (default: false)
510 * @param template_only save a session template (default: false)
511 * @return zero on success
513 int save_state (std::string snapshot_name,
514 bool pending = false,
515 bool switch_to_snapshot = false,
516 bool template_only = false,
517 bool for_archive = false,
518 bool only_used_assets = false);
526 int archive_session (const std::string&, const std::string&,
527 ArchiveEncode compress_audio = FLAC_16BIT,
528 PBD::FileArchive::CompressionLevel compression_level = PBD::FileArchive::CompressGood,
529 bool only_used_sources = false,
532 int restore_state (std::string snapshot_name);
533 int save_template (const std::string& template_name, const std::string& description = "", bool replace_existing = false);
534 int save_history (std::string snapshot_name = "");
535 int restore_history (std::string snapshot_name);
536 void remove_state (std::string snapshot_name);
537 void rename_state (std::string old_name, std::string new_name);
538 void remove_pending_capture_state ();
539 int rename (const std::string&);
540 bool get_nsm_state () const { return _under_nsm_control; }
541 void set_nsm_state (bool state) { _under_nsm_control = state; }
542 bool save_default_options ();
544 PBD::Signal1<void,std::string> StateSaved;
545 PBD::Signal0<void> StateReady;
547 /* emitted when session needs to be saved due to some internal
548 * event or condition (i.e. not in response to a user request).
550 * Only one object should
551 * connect to this signal and take responsibility.
553 * Argument is the snapshot name to use when saving.
555 PBD::Signal1<void,std::string> SaveSessionRequested;
557 /* emitted during a session save to allow other entities to add state, via
558 * extra XML, to the session state
560 PBD::Signal0<void> SessionSaveUnderway;
562 std::vector<std::string> possible_states() const;
563 static std::vector<std::string> possible_states (std::string path);
565 bool export_track_state (boost::shared_ptr<RouteList> rl, const std::string& path);
567 /// The instant xml file is written to the session directory
568 void add_instant_xml (XMLNode&, bool write_to_config = true);
569 XMLNode* instant_xml (const std::string& str);
571 enum StateOfTheState {
576 InitialConnecting = 0x8,
582 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
584 class StateProtector {
586 StateProtector (Session* s) : _session (s) {
587 g_atomic_int_inc (&s->_suspend_save);
590 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
591 while (_session->_save_queued) {
592 _session->_save_queued = false;
593 _session->save_state ("");
601 class ProcessorChangeBlocker {
603 ProcessorChangeBlocker (Session* s, bool rc = true)
605 , _reconfigure_on_delete (rc)
607 g_atomic_int_inc (&s->_ignore_route_processor_changes);
609 ~ProcessorChangeBlocker () {
610 if (g_atomic_int_dec_and_test (&_session->_ignore_route_processor_changes)) {
611 if (_reconfigure_on_delete) {
612 _session->route_processors_changed (RouteProcessorChange ());
618 bool _reconfigure_on_delete;
621 RouteGroup* new_route_group (const std::string&);
622 void add_route_group (RouteGroup *);
623 void remove_route_group (RouteGroup* rg) { if (rg) remove_route_group (*rg); }
624 void remove_route_group (RouteGroup&);
625 void reorder_route_groups (std::list<RouteGroup*>);
627 RouteGroup* route_group_by_name (std::string);
628 RouteGroup& all_route_group() const;
630 PBD::Signal1<void,RouteGroup*> route_group_added;
631 PBD::Signal0<void> route_group_removed;
632 PBD::Signal0<void> route_groups_reordered;
634 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
635 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
640 std::list<RouteGroup*> const & route_groups () const {
641 return _route_groups;
644 /* fundamental operations. duh. */
646 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
649 RouteGroup* route_group,
651 std::string name_template,
652 PresentationInfo::order_t order,
653 TrackMode mode = Normal
656 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
657 const ChanCount& input, const ChanCount& output, bool strict_io,
658 boost::shared_ptr<PluginInfo> instrument,
659 Plugin::PresetRecord* pset,
660 RouteGroup* route_group, uint32_t how_many, std::string name_template,
661 PresentationInfo::order_t,
662 TrackMode mode = Normal
665 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);
666 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);
668 void remove_routes (boost::shared_ptr<RouteList>);
669 void remove_route (boost::shared_ptr<Route>);
671 void resort_routes ();
672 void resort_routes_using (boost::shared_ptr<RouteList>);
674 AudioEngine & engine() { return _engine; }
675 AudioEngine const & engine () const { return _engine; }
677 static std::string default_track_name_pattern (DataType);
681 samplepos_t transport_sample () const { return _transport_sample; }
682 samplepos_t record_location () const { return _last_record_location; }
683 samplepos_t audible_sample (bool* latent_locate = NULL) const;
684 samplepos_t requested_return_sample() const { return _requested_return_sample; }
685 void set_requested_return_sample(samplepos_t return_to);
687 bool compute_audible_delta (samplepos_t& pos_and_delta) const;
688 samplecnt_t remaining_latency_preroll () const { return _remaining_latency_preroll; }
702 void sync_time_vars();
704 void bbt_time (samplepos_t when, Timecode::BBT_Time&);
705 void timecode_to_sample(Timecode::Time& timecode, samplepos_t& sample, bool use_offset, bool use_subframes) const;
706 void sample_to_timecode(samplepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
707 void timecode_time (Timecode::Time &);
708 void timecode_time (samplepos_t when, Timecode::Time&);
709 void timecode_time_subframes (samplepos_t when, Timecode::Time&);
711 void timecode_duration (samplecnt_t, Timecode::Time&) const;
712 void timecode_duration_string (char *, size_t len, samplecnt_t) const;
714 samplecnt_t convert_to_samples (AnyTime const & position);
715 samplecnt_t any_duration_to_samples (samplepos_t position, AnyTime const & duration);
717 static PBD::Signal1<void, samplepos_t> StartTimeChanged;
718 static PBD::Signal1<void, samplepos_t> EndTimeChanged;
720 void request_sync_source (boost::shared_ptr<TransportMaster>);
721 bool synced_to_engine() const;
723 double engine_speed() const { return _engine_speed; }
724 double actual_speed() const {
725 if (_transport_speed > 0) return _engine_speed;
726 if (_transport_speed < 0) return - _engine_speed;
729 double transport_speed() const { return _count_in_samples > 0 ? 0. : _transport_speed; }
730 bool transport_stopped() const { return _transport_speed == 0.0; }
731 bool transport_rolling() const { return _transport_speed != 0.0 && _count_in_samples == 0 && _remaining_latency_preroll == 0; }
733 bool silent () { return _silent; }
735 TempoMap& tempo_map() { return *_tempo_map; }
736 const TempoMap& tempo_map() const { return *_tempo_map; }
738 unsigned int get_xrun_count () const {return _xrun_count; }
739 void reset_xrun_count () {_xrun_count = 0; }
743 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
745 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
746 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
747 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
749 /* source management */
751 void import_files (ImportStatus&);
752 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
753 std::string build_tmp_convert_name (std::string file);
755 boost::shared_ptr<ExportHandler> get_export_handler ();
756 boost::shared_ptr<ExportStatus> get_export_status ();
758 int start_audio_export (samplepos_t position, bool realtime = false, bool region_export = false);
760 PBD::Signal1<int, samplecnt_t> ProcessExport;
761 static PBD::Signal2<void,std::string, std::string> Exported;
763 void add_source (boost::shared_ptr<Source>);
764 void remove_source (boost::weak_ptr<Source>);
766 void cleanup_regions();
767 bool can_cleanup_peakfiles () const;
768 int cleanup_peakfiles ();
769 int cleanup_sources (CleanupReport&);
770 int cleanup_trash_sources (CleanupReport&);
772 int destroy_sources (std::list<boost::shared_ptr<Source> >);
774 int remove_last_capture ();
776 /** handlers should return 0 for "everything OK", and any other value for
777 * "cannot setup audioengine".
779 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
781 /** handlers should return -1 for "stop cleanup",
782 0 for "yes, delete this playlist",
783 1 for "no, don't delete this playlist".
785 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
787 /** handlers should return 0 for "ignore the rate mismatch",
788 !0 for "do not use this session"
790 static PBD::Signal2<int, samplecnt_t, samplecnt_t> AskAboutSampleRateMismatch;
792 /** non interactive message */
793 static PBD::Signal2<void, samplecnt_t, samplecnt_t> NotifyAboutSampleRateMismatch;
795 /** handlers should return !0 for use pending state, 0 for ignore it.
797 static PBD::Signal0<int> AskAboutPendingState;
799 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
800 size_t, std::string const &, uint32_t, bool destructive);
802 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
803 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
805 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
806 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
807 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&, bool need_source_lock) const;
808 uint32_t count_sources_by_origin (const std::string&);
810 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
812 /* Curves and AutomationLists (TODO when they go away) */
813 void add_automation_list(AutomationList*);
817 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
818 void audition_playlist ();
819 void audition_region (boost::shared_ptr<Region>);
820 void cancel_audition ();
821 bool is_auditioning () const;
823 PBD::Signal1<void,bool> AuditionActive;
826 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
827 void unregister_lua_function (const std::string& name);
828 std::vector<std::string> registered_lua_functions ();
829 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
830 void scripts_changed (); // called from lua, updates _n_lua_scripts
832 PBD::Signal0<void> LuaScriptsChanged;
834 /* flattening stuff */
836 boost::shared_ptr<Region> write_one_track (Track&, samplepos_t start, samplepos_t end,
837 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
838 boost::shared_ptr<Processor> endpoint,
839 bool include_endpoint, bool for_export, bool for_freeze);
840 int freeze_all (InterThreadInfo&);
842 /* session-wide solo/mute/rec-enable */
845 std::vector<boost::weak_ptr<AutomationControl> > cancel_all_mute ();
847 bool soloing() const { return _non_soloed_outs_muted; }
848 bool listening() const { return _listen_cnt > 0; }
849 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
850 void cancel_all_solo ();
852 bool solo_selection_active();
853 void solo_selection( StripableList&, bool );
855 static const SessionEvent::RTeventCallback rt_cleanup;
857 void clear_all_solo_state (boost::shared_ptr<RouteList>);
859 /* Control-based methods */
861 void set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition);
862 void set_control (boost::shared_ptr<AutomationControl>, double val, PBD::Controllable::GroupControlDisposition);
864 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
866 PBD::Signal1<void,bool> SoloActive;
867 PBD::Signal0<void> SoloChanged;
868 PBD::Signal0<void> MuteChanged;
869 PBD::Signal0<void> IsolatedChanged;
870 PBD::Signal0<void> MonitorChanged;
872 PBD::Signal0<void> session_routes_reconnected;
874 /* monitor/master out */
875 int add_master_bus (ChanCount const&);
877 void add_monitor_section ();
878 void reset_monitor_section ();
879 void remove_monitor_section ();
880 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
882 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
883 boost::shared_ptr<Route> master_out() const { return _master_out; }
885 PresentationInfo::order_t master_order_key () const { return _master_out ? _master_out->presentation_info ().order () : -1; }
886 bool ensure_stripable_sort_order ();
888 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
889 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
890 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
891 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
892 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
893 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
894 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
896 static void set_disable_all_loaded_plugins (bool yn) {
897 _disable_all_loaded_plugins = yn;
899 static bool get_disable_all_loaded_plugins() {
900 return _disable_all_loaded_plugins;
902 static void set_bypass_all_loaded_plugins (bool yn) {
903 _bypass_all_loaded_plugins = yn;
905 static bool get_bypass_all_loaded_plugins() {
906 return _bypass_all_loaded_plugins;
909 uint32_t next_send_id();
910 uint32_t next_aux_send_id();
911 uint32_t next_return_id();
912 uint32_t next_insert_id();
913 void mark_send_id (uint32_t);
914 void mark_aux_send_id (uint32_t);
915 void mark_return_id (uint32_t);
916 void mark_insert_id (uint32_t);
917 void unmark_send_id (uint32_t);
918 void unmark_aux_send_id (uint32_t);
919 void unmark_return_id (uint32_t);
920 void unmark_insert_id (uint32_t);
922 /* s/w "RAID" management */
924 boost::optional<samplecnt_t> available_capture_duration();
928 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
929 void remove_bundle (boost::shared_ptr<Bundle>);
930 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
932 PBD::Signal0<void> BundleAddedOrRemoved;
936 /* History (for editors, mixers, UIs etc.) */
938 /** Undo some transactions.
939 * @param n Number of transactions to undo.
941 void undo (uint32_t n);
942 /** Redo some transactions.
943 * @param n Number of transactions to undo.
945 void redo (uint32_t n);
947 UndoHistory& history() { return _history; }
949 uint32_t undo_depth() const { return _history.undo_depth(); }
950 uint32_t redo_depth() const { return _history.redo_depth(); }
951 std::string next_undo() const { return _history.next_undo(); }
952 std::string next_redo() const { return _history.next_redo(); }
954 /** begin collecting undo information
956 * This call must always be followed by either
957 * begin_reversible_command() or commit_reversible_command()
959 * @param cmd_name human readable name for the undo operation
961 void begin_reversible_command (const std::string& cmd_name);
962 void begin_reversible_command (GQuark);
963 /** abort an open undo command
964 * This must only be called after begin_reversible_command ()
966 void abort_reversible_command ();
967 /** finalize an undo command and commit pending transactions
969 * This must only be called after begin_reversible_command ()
970 * @param cmd (additional) command to add
972 void commit_reversible_command (Command* cmd = 0);
974 void add_command (Command *const cmd);
976 /** create an StatefulDiffCommand from the given object and add it to the stack.
978 * This function must only be called after begin_reversible_command.
979 * Failing to do so may lead to a crash.
981 * @param sfd the object to diff
982 * @returns the allocated StatefulDiffCommand (already added via add_command)
984 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
986 /** @return The list of operations that are currently in progress */
987 std::list<GQuark> const & current_operations () {
988 return _current_trans_quarks;
991 bool operation_in_progress (GQuark) const;
993 void add_commands (std::vector<Command*> const & cmds);
995 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
997 // these commands are implemented in libs/ardour/session_command.cc
998 Command* memento_command_factory(XMLNode* n);
999 Command* stateful_diff_command_factory (XMLNode *);
1000 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
1004 boost::shared_ptr<IO> click_io() { return _click_io; }
1005 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
1007 /* disk, buffer loads */
1009 uint32_t playback_load ();
1010 uint32_t capture_load ();
1014 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
1015 void request_cancel_play_range ();
1016 bool get_play_range () const { return _play_range; }
1018 void maybe_update_session_range (samplepos_t, samplepos_t);
1021 samplecnt_t preroll_samples (samplepos_t) const;
1023 void request_preroll_record_trim (samplepos_t start, samplecnt_t preroll);
1024 void request_count_in_record ();
1026 samplecnt_t preroll_record_trim_len () const { return _preroll_record_trim_len; }
1028 /* temporary hacks to allow selection to be pushed from GUI into backend.
1029 Whenever we move the selection object into libardour, these will go away.
1031 void set_range_selection (samplepos_t start, samplepos_t end);
1032 void set_object_selection (samplepos_t start, samplepos_t end);
1033 void clear_range_selection ();
1034 void clear_object_selection ();
1036 /* buffers for gain and pan */
1038 gain_t* gain_automation_buffer () const;
1039 gain_t* trim_automation_buffer () const;
1040 gain_t* send_gain_automation_buffer () const;
1041 gain_t* scratch_automation_buffer () const;
1042 pan_t** pan_automation_buffer () const;
1044 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
1048 static int vst_current_loading_id;
1049 static const char* vst_can_do_strings[];
1050 static const int vst_can_do_string_count;
1052 static intptr_t vst_callback (
1061 static PBD::Signal0<void> SendFeedback;
1065 boost::shared_ptr<Speakers> get_speakers ();
1069 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
1071 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
1072 boost::shared_ptr<AutomationControl> automation_control_by_id (const PBD::ID&);
1074 void add_controllable (boost::shared_ptr<PBD::Controllable>);
1075 void remove_controllable (PBD::Controllable*);
1077 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
1079 SessionConfiguration config;
1081 SessionConfiguration* cfg () { return &config; }
1083 bool exporting () const {
1087 bool bounce_processing() const {
1088 return _bounce_processing_active;
1091 /* this is a private enum, but setup_enum_writer() needs it,
1092 and i can't find a way to give that function
1093 friend access. sigh.
1096 enum PostTransportWork {
1097 PostTransportStop = 0x1,
1098 PostTransportDuration = 0x2,
1099 PostTransportLocate = 0x4,
1100 PostTransportRoll = 0x8,
1101 PostTransportAbort = 0x10,
1102 PostTransportOverWrite = 0x20,
1103 /* was ... PostTransportSpeed = 0x40, */
1104 PostTransportAudition = 0x80,
1105 PostTransportReverse = 0x100,
1106 PostTransportInputChange = 0x200,
1107 PostTransportCurveRealloc = 0x400,
1108 PostTransportClearSubstate = 0x800,
1109 PostTransportAdjustPlaybackBuffering = 0x1000,
1110 PostTransportAdjustCaptureBuffering = 0x2000
1113 boost::shared_ptr<SessionPlaylists> playlists;
1115 void send_mmc_locate (samplepos_t);
1116 void queue_full_time_code () { _send_timecode_update = true; }
1117 void queue_song_position_pointer () { /* currently does nothing */ }
1119 bool step_editing() const { return (_step_editors > 0); }
1121 void request_suspend_timecode_transmission ();
1122 void request_resume_timecode_transmission ();
1123 bool timecode_transmission_suspended () const;
1125 std::vector<std::string> source_search_path(DataType) const;
1126 void ensure_search_path_includes (const std::string& path, DataType type);
1127 void remove_dir_from_search_path (const std::string& path, DataType type);
1129 std::list<std::string> unknown_processors () const;
1131 /** Emitted when a feedback cycle has been detected within Ardour's signal
1132 processing path. Until it is fixed (by the user) some (unspecified)
1133 routes will not be run.
1135 static PBD::Signal0<void> FeedbackDetected;
1137 /** Emitted when a graph sort has successfully completed, which means
1138 that it has no feedback cycles.
1140 static PBD::Signal0<void> SuccessfulGraphSort;
1142 /* handlers can return an integer value:
1143 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1144 to modify the search path and we should try to find it again.
1145 1: quit entire session load
1146 2: as 0, but don't ask about other missing files
1147 3: don't ask about other missing files, and just mark this one missing
1148 -1: just mark this one missing
1149 any other value: as -1
1151 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1153 void set_missing_file_replacement (const std::string& mfr) {
1154 _missing_file_replacement = mfr;
1157 /** Emitted when the session wants Ardour to quit */
1158 static PBD::Signal0<void> Quit;
1160 /** Emitted when Ardour is asked to load a session in an older session
1161 * format, and makes a backup copy.
1163 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1165 SceneChanger* scene_changer() const { return _scene_changer; }
1167 /* asynchronous MIDI control ports */
1169 boost::shared_ptr<Port> midi_input_port () const;
1170 boost::shared_ptr<Port> midi_output_port () const;
1171 boost::shared_ptr<Port> mmc_output_port () const;
1172 boost::shared_ptr<Port> mmc_input_port () const;
1173 boost::shared_ptr<Port> scene_input_port () const;
1174 boost::shared_ptr<Port> scene_output_port () const;
1176 /* synchronous MIDI ports used for synchronization */
1178 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1179 boost::shared_ptr<MidiPort> mtc_output_port () const;
1180 boost::shared_ptr<Port> ltc_output_port() const;
1182 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1184 MIDI::MachineControl& mmc() { return *_mmc; }
1186 void reconnect_midi_scene_ports (bool);
1187 void reconnect_mmc_ports (bool);
1189 void reconnect_ltc_output ();
1191 VCAManager& vca_manager() { return *_vca_manager; }
1192 VCAManager* vca_manager_ptr() { return _vca_manager; }
1194 void auto_connect_thread_wakeup ();
1196 double compute_speed_from_master (pframes_t nframes);
1197 bool transport_master_is_external() const;
1198 boost::shared_ptr<TransportMaster> transport_master() const;
1201 friend class AudioEngine;
1202 void set_block_size (pframes_t nframes);
1203 void set_sample_rate (samplecnt_t nframes);
1204 #ifdef USE_TRACKS_CODE_FEATURES
1205 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1209 void schedule_curve_reallocation ();
1210 void update_latency_compensation (bool force = false);
1213 int create (const std::string& mix_template, BusProfile*);
1216 static guint _name_id_counter;
1217 static void init_name_id_counter (guint n);
1218 static unsigned int name_id_counter ();
1220 /* stuff used in process() should be close together to
1224 typedef void (Session::*process_function_type)(pframes_t);
1226 AudioEngine& _engine;
1227 mutable gint processing_prohibited;
1228 process_function_type process_function;
1229 process_function_type last_process_function;
1230 bool _bounce_processing_active;
1231 bool waiting_for_sync_offset;
1232 samplecnt_t _base_sample_rate; // sample-rate of the session at creation time, "native" SR
1233 samplecnt_t _nominal_sample_rate; // overridden by audioengine setting
1234 samplecnt_t _current_sample_rate; // this includes video pullup offset
1235 int transport_sub_state;
1236 mutable gint _record_status;
1237 samplepos_t _transport_sample;
1239 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1240 bool _session_range_end_is_free;
1242 samplecnt_t _remaining_latency_preroll;
1244 // varispeed playback -- TODO: move out of session to backend.
1245 double _engine_speed;
1246 double _transport_speed; // only: -1, 0, +1
1247 double _default_transport_speed;
1248 double _last_transport_speed;
1249 double _signalled_varispeed;
1250 double _target_transport_speed;
1252 bool auto_play_legal;
1253 samplepos_t _requested_return_sample;
1254 pframes_t current_block_size;
1255 samplecnt_t _worst_output_latency;
1256 samplecnt_t _worst_input_latency;
1257 samplecnt_t _worst_route_latency;
1258 uint32_t _send_latency_changes;
1259 bool _have_captured;
1260 bool _non_soloed_outs_muted;
1262 uint32_t _listen_cnt;
1263 uint32_t _solo_isolated_cnt;
1266 bool _under_nsm_control;
1267 unsigned int _xrun_count;
1269 std::string _missing_file_replacement;
1271 void initialize_latencies ();
1272 void update_latency (bool playback);
1273 bool update_route_latency (bool reverse, bool apply_to_delayline);
1275 void set_worst_io_latencies ();
1276 void set_worst_output_latency ();
1277 void set_worst_input_latency ();
1279 void send_latency_compensation_change ();
1280 void set_worst_io_latencies_x (IOChange, void *);
1282 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1284 void process_scrub (pframes_t);
1285 void process_without_events (pframes_t);
1286 void process_with_events (pframes_t);
1287 void process_audition (pframes_t);
1288 void process_export (pframes_t);
1289 void process_export_fw (pframes_t);
1291 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1292 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1293 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1295 static const samplecnt_t bounce_chunk_size;
1297 /* Transport master DLL */
1299 enum TransportMasterState {
1300 Stopped, /* no incoming or invalid signal/data for master to run with */
1301 Waiting, /* waiting to get full lock on incoming signal/data */
1302 Running /* lock achieved, master is generating meaningful speed & position */
1305 TransportMasterState transport_master_tracking_state;
1306 samplepos_t master_wait_end;
1307 void track_transport_master (float slave_speed, samplepos_t slave_transport_sample);
1308 bool follow_transport_master (pframes_t nframes);
1310 void sync_source_changed (SyncSource, samplepos_t pos, pframes_t cycle_nframes);
1311 void reset_slave_state ();
1313 bool post_export_sync;
1314 samplepos_t post_export_position;
1317 bool _export_rolling;
1318 bool _realtime_export;
1319 bool _region_export;
1320 samplepos_t _export_preroll;
1322 boost::shared_ptr<ExportHandler> export_handler;
1323 boost::shared_ptr<ExportStatus> export_status;
1326 int stop_audio_export ();
1327 void finalize_audio_export ();
1328 void finalize_export_internal (bool stop_freewheel);
1329 bool _pre_export_mmc_enabled;
1331 PBD::ScopedConnection export_freewheel_connection;
1333 void get_track_statistics ();
1334 int process_routes (pframes_t, bool& need_butler);
1335 int silent_process_routes (pframes_t, bool& need_butler);
1337 /** @return 1 if there is a pending declick fade-in,
1338 -1 if there is a pending declick fade-out,
1339 0 if there is no pending declick.
1341 bool maybe_stop (samplepos_t limit);
1342 bool maybe_sync_start (pframes_t &);
1348 /** Number of process samples since the last MTC output (when sending MTC); used to
1349 * know when to send full MTC messages every so often.
1351 pframes_t _pframes_since_last_mtc;
1354 samplepos_t last_loopend;
1356 boost::scoped_ptr<SessionDirectory> _session_dir;
1359 void graph_reordered ();
1361 /** current snapshot name, without the .ardour suffix */
1362 void set_snapshot_name (const std::string &);
1363 void save_snapshot_name (const std::string &);
1364 std::string _current_snapshot_name;
1366 XMLTree* state_tree;
1367 bool state_was_pending;
1368 StateOfTheState _state_of_the_state;
1370 friend class StateProtector;
1371 gint _suspend_save; /* atomic */
1372 volatile bool _save_queued;
1373 Glib::Threads::Mutex save_state_lock;
1374 Glib::Threads::Mutex save_source_lock;
1375 Glib::Threads::Mutex peak_cleanup_lock;
1377 int load_options (const XMLNode&);
1378 int load_state (std::string snapshot_name);
1379 static int parse_stateful_loading_version (const std::string&);
1381 samplepos_t _last_roll_location;
1382 /** the session sample time at which we last rolled, located, or changed transport direction */
1383 samplepos_t _last_roll_or_reversal_location;
1384 samplepos_t _last_record_location;
1387 bool pending_auto_loop;
1389 PBD::ReallocPool _mempool;
1391 Glib::Threads::Mutex lua_lock;
1392 luabridge::LuaRef * _lua_run;
1393 luabridge::LuaRef * _lua_add;
1394 luabridge::LuaRef * _lua_del;
1395 luabridge::LuaRef * _lua_list;
1396 luabridge::LuaRef * _lua_load;
1397 luabridge::LuaRef * _lua_save;
1398 luabridge::LuaRef * _lua_cleanup;
1399 uint32_t _n_lua_scripts;
1402 void try_run_lua (pframes_t);
1406 static const PostTransportWork ProcessCannotProceedMask =
1408 PostTransportInputChange|
1409 PostTransportReverse|
1410 PostTransportCurveRealloc|
1411 PostTransportAudition|
1413 PostTransportClearSubstate);
1415 gint _post_transport_work; /* accessed only atomic ops */
1416 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1417 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1418 void add_post_transport_work (PostTransportWork ptw);
1420 void schedule_playback_buffering_adjustment ();
1421 void schedule_capture_buffering_adjustment ();
1423 uint32_t cumulative_rf_motion;
1426 void set_rf_speed (float speed);
1427 void reset_rf_scale (samplecnt_t samples_moved);
1429 Locations* _locations;
1430 void location_added (Location*);
1431 void location_removed (Location*);
1432 void locations_changed ();
1433 void _locations_changed (const Locations::LocationList&);
1435 void update_skips (Location*, bool consolidate);
1436 void update_marks (Location* loc);
1437 void consolidate_skips (Location*);
1438 void sync_locations_to_skips ();
1439 void _sync_locations_to_skips ();
1441 PBD::ScopedConnectionList skip_update_connections;
1442 bool _ignore_skips_updates;
1444 PBD::ScopedConnectionList punch_connections;
1445 void auto_punch_start_changed (Location *);
1446 void auto_punch_end_changed (Location *);
1447 void auto_punch_changed (Location *);
1449 PBD::ScopedConnectionList loop_connections;
1450 void auto_loop_changed (Location *);
1451 void auto_loop_declick_range (Location *, samplepos_t &, samplepos_t &);
1453 int ensure_engine (uint32_t desired_sample_rate, bool);
1454 void pre_engine_init (std::string path);
1455 int post_engine_init ();
1456 int immediately_post_engine ();
1457 void remove_empty_sounds ();
1459 void session_loaded ();
1461 void setup_midi_control ();
1462 int midi_read (MIDI::Port *);
1464 void enable_record ();
1466 void increment_transport_position (samplecnt_t val) {
1467 if (max_samplepos - val < _transport_sample) {
1468 _transport_sample = max_samplepos;
1470 _transport_sample += val;
1474 void decrement_transport_position (samplecnt_t val) {
1475 if (val < _transport_sample) {
1476 _transport_sample -= val;
1478 _transport_sample = 0;
1482 void post_transport_motion ();
1483 static void *session_loader_thread (void *arg);
1487 /* Signal Forwarding */
1488 void emit_route_signals ();
1489 void emit_thread_run ();
1490 static void *emit_thread (void *);
1491 void emit_thread_start ();
1492 void emit_thread_terminate ();
1494 pthread_t _rt_emit_thread;
1495 bool _rt_thread_active;
1497 pthread_mutex_t _rt_emit_mutex;
1498 pthread_cond_t _rt_emit_cond;
1499 bool _rt_emit_pending;
1501 /* Auto Connect Thread */
1502 static void *auto_connect_thread (void *);
1503 void auto_connect_thread_run ();
1504 void auto_connect_thread_start ();
1505 void auto_connect_thread_terminate ();
1507 pthread_t _auto_connect_thread;
1508 gint _ac_thread_active;
1509 pthread_mutex_t _auto_connect_mutex;
1510 pthread_cond_t _auto_connect_cond;
1512 struct AutoConnectRequest {
1514 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1515 const ChanCount& is,
1516 const ChanCount& os,
1517 const ChanCount& io,
1518 const ChanCount& oo)
1519 : route (boost::weak_ptr<Route> (r))
1520 , connect_inputs (ci)
1524 , output_offset (oo)
1527 boost::weak_ptr <Route> route;
1528 bool connect_inputs;
1529 ChanCount input_start;
1530 ChanCount output_start;
1531 ChanCount input_offset;
1532 ChanCount output_offset;
1535 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1536 Glib::Threads::Mutex _auto_connect_queue_lock;
1537 AutoConnectQueue _auto_connect_queue;
1538 guint _latency_recompute_pending;
1540 void get_physical_ports (std::vector<std::string>& inputs, std::vector<std::string>& outputs, DataType type,
1541 MidiPortFlags include = MidiPortFlags (0),
1542 MidiPortFlags exclude = MidiPortFlags (0));
1544 void auto_connect (const AutoConnectRequest&);
1545 void queue_latency_recompute ();
1547 /* SessionEventManager interface */
1549 void process_event (SessionEvent*);
1550 void set_next_event ();
1551 void cleanup_event (SessionEvent*,int);
1553 /* MIDI Machine Control */
1556 void spp_continue ();
1559 void mmc_deferred_play (MIDI::MachineControl &);
1560 void mmc_stop (MIDI::MachineControl &);
1561 void mmc_step (MIDI::MachineControl &, int);
1562 void mmc_pause (MIDI::MachineControl &);
1563 void mmc_record_pause (MIDI::MachineControl &);
1564 void mmc_record_strobe (MIDI::MachineControl &);
1565 void mmc_record_exit (MIDI::MachineControl &);
1566 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1567 void mmc_fast_forward (MIDI::MachineControl &);
1568 void mmc_rewind (MIDI::MachineControl &);
1569 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1570 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1571 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1573 struct timeval last_mmc_step;
1576 typedef boost::function<bool()> MidiTimeoutCallback;
1577 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1579 MidiTimeoutList midi_timeouts;
1580 bool mmc_step_timeout ();
1581 void send_immediate_mmc (MIDI::MachineControlCommand);
1583 MIDI::byte mtc_msg[16];
1584 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1585 MIDI::byte midi_msg[16];
1586 double outbound_mtc_timecode_frame;
1587 Timecode::Time transmitting_timecode_time;
1588 int next_quarter_frame_to_send;
1590 double _samples_per_timecode_frame; /* has to be floating point because of drop sample */
1591 samplecnt_t _frames_per_hour;
1592 samplecnt_t _timecode_frames_per_hour;
1594 /* cache the most-recently requested time conversions. This helps when we
1595 * have multiple clocks showing the same time (e.g. the transport sample) */
1596 bool last_timecode_valid;
1597 samplepos_t last_timecode_when;
1598 Timecode::Time last_timecode;
1600 bool _send_timecode_update; ///< Flag to send a full sample (Timecode) MTC message this cycle
1602 int send_midi_time_code_for_cycle (samplepos_t, samplepos_t, pframes_t nframes);
1604 LTCEncoder* ltc_encoder;
1605 ltcsnd_sample_t* ltc_enc_buf;
1607 Timecode::TimecodeFormat ltc_enc_tcformat;
1608 int32_t ltc_buf_off;
1609 int32_t ltc_buf_len;
1612 int32_t ltc_enc_byte;
1613 samplepos_t ltc_enc_pos;
1615 samplepos_t ltc_enc_off;
1617 samplepos_t ltc_prev_cycle;
1619 samplepos_t ltc_timecode_offset;
1620 bool ltc_timecode_negative_offset;
1622 LatencyRange ltc_out_latency;
1624 void ltc_tx_initialize();
1625 void ltc_tx_cleanup();
1626 void ltc_tx_reset();
1627 void ltc_tx_resync_latency();
1628 void ltc_tx_recalculate_position();
1629 void ltc_tx_parse_offset();
1630 void ltc_tx_send_time_code_for_cycle (samplepos_t, samplepos_t, double, double, pframes_t nframes);
1631 PBD::ScopedConnectionList ltc_tx_connections;
1634 void reset_record_status ();
1636 int no_roll (pframes_t nframes);
1637 int fail_roll (pframes_t nframes);
1639 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1640 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1642 MidiControlUI* midi_control_ui;
1644 int start_midi_thread ();
1646 bool should_ignore_transport_request (TransportRequestSource, TransportRequestType) const;
1648 void set_play_loop (bool yn, double speed);
1649 void unset_play_loop ();
1650 void overwrite_some_buffers (Track *);
1651 void flush_all_inserts ();
1652 int micro_locate (samplecnt_t distance);
1653 void locate (samplepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1654 void start_locate (samplepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1655 void force_locate (samplepos_t sample, bool with_roll = false);
1656 void set_transport_speed (double speed, samplepos_t destination_sample, bool abort = false, bool clear_state = false, bool as_default = false);
1657 void stop_transport (bool abort = false, bool clear_state = false);
1658 void start_transport ();
1659 void realtime_stop (bool abort, bool clear_state);
1660 void realtime_locate ();
1661 void non_realtime_start_scrub ();
1662 void non_realtime_set_speed ();
1663 void non_realtime_locate ();
1664 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1665 void non_realtime_overwrite (int entry_request_count, bool& finished);
1666 void post_transport ();
1667 void engine_halted ();
1668 void xrun_recovery ();
1669 void set_track_loop (bool);
1670 bool select_playhead_priority_target (samplepos_t&);
1671 void follow_playhead_priority ();
1673 /* These are synchronous and so can only be called from within the process
1677 int send_full_time_code (samplepos_t, pframes_t nframes);
1678 void send_song_position_pointer (samplepos_t);
1680 TempoMap *_tempo_map;
1681 void tempo_map_changed (const PBD::PropertyChange&);
1683 /* edit/mix groups */
1685 int load_route_groups (const XMLNode&, int);
1687 std::list<RouteGroup *> _route_groups;
1688 RouteGroup* _all_route_group;
1692 boost::shared_ptr<Graph> _process_graph;
1694 SerializedRCUManager<RouteList> routes;
1696 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save, PresentationInfo::order_t);
1697 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect, PresentationInfo::order_t);
1698 bool _adding_routes_in_progress;
1699 bool _reconnecting_routes_in_progress;
1700 bool _route_deletion_in_progress;
1702 uint32_t destructive_index;
1704 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1705 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1706 boost::shared_ptr<Route> XMLRouteFactory_3X (const XMLNode&, int);
1708 void route_processors_changed (RouteProcessorChange);
1710 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1711 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1712 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1713 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1715 /* track numbering */
1717 void reassign_track_numbers ();
1718 uint32_t _track_number_decimals;
1720 /* solo/mute/notifications */
1722 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1723 void route_mute_changed ();
1724 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1725 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1727 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1729 void listen_position_changed ();
1730 void solo_control_mode_changed ();
1732 /* REGION MANAGEMENT */
1734 mutable Glib::Threads::Mutex region_lock;
1736 int load_regions (const XMLNode& node);
1737 int load_compounds (const XMLNode& node);
1739 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1740 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1741 void route_group_property_changed (RouteGroup *);
1745 mutable Glib::Threads::Mutex source_lock;
1748 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1751 void reset_write_sources (bool mark_write_complete, bool force = false);
1754 int load_sources (const XMLNode& node);
1755 XMLNode& get_sources_as_xml ();
1757 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1761 void remove_playlist (boost::weak_ptr<Playlist>);
1762 void track_playlist_changed (boost::weak_ptr<Track>);
1763 void playlist_region_added (boost::weak_ptr<Region>);
1764 void playlist_ranges_moved (std::list<Evoral::RangeMove<samplepos_t> > const &);
1765 void playlist_regions_extended (std::list<Evoral::Range<samplepos_t> > const &);
1767 /* CURVES and AUTOMATION LISTS */
1768 std::map<PBD::ID, AutomationList*> automation_lists;
1770 /* DEFAULT FADE CURVES */
1772 float default_fade_steepness;
1773 float default_fade_msecs;
1777 boost::shared_ptr<Auditioner> auditioner;
1778 void set_audition (boost::shared_ptr<Region>);
1779 void non_realtime_set_audition ();
1780 boost::shared_ptr<Region> pending_audition_region;
1786 int flatten_one_track (AudioTrack&, samplepos_t start, samplecnt_t cnt);
1788 /* INSERT AND SEND MANAGEMENT */
1790 boost::dynamic_bitset<uint32_t> send_bitset;
1791 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1792 boost::dynamic_bitset<uint32_t> return_bitset;
1793 boost::dynamic_bitset<uint32_t> insert_bitset;
1797 struct space_and_path {
1798 uint32_t blocks; ///< 4kB blocks
1799 bool blocks_unknown; ///< true if blocks is unknown
1804 , blocks_unknown (true)
1808 struct space_and_path_ascending_cmp {
1809 bool operator() (space_and_path a, space_and_path b) {
1810 if (a.blocks_unknown != b.blocks_unknown) {
1811 return !a.blocks_unknown;
1813 return a.blocks > b.blocks;
1817 void setup_raid_path (std::string path);
1819 std::vector<space_and_path> session_dirs;
1820 std::vector<space_and_path>::iterator last_rr_session_dir;
1821 uint32_t _total_free_4k_blocks;
1822 /** If this is true, _total_free_4k_blocks is not definite,
1823 as one or more of the session directories' filesystems
1824 could not report free space.
1826 bool _total_free_4k_blocks_uncertain;
1827 Glib::Threads::Mutex space_lock;
1829 bool no_questions_about_missing_files;
1831 std::string get_best_session_directory_for_new_audio ();
1833 mutable gint _playback_load;
1834 mutable gint _capture_load;
1838 SerializedRCUManager<BundleList> _bundles;
1839 XMLNode* _bundle_xml_node;
1840 int load_bundles (XMLNode const &);
1842 UndoHistory _history;
1843 /** current undo transaction, or 0 */
1844 UndoTransaction* _current_trans;
1845 /** GQuarks to describe the reversible commands that are currently in progress.
1846 * These may be nested, in which case more recently-started commands are toward
1847 * the front of the list.
1849 std::list<GQuark> _current_trans_quarks;
1851 int backend_sync_callback (TransportState, samplepos_t);
1853 void process_rtop (SessionEvent*);
1861 XMLNode& state (bool save_template,
1862 snapshot_t snapshot_type = NormalSave,
1863 bool only_used_assets = false);
1865 XMLNode& get_state ();
1866 int set_state (const XMLNode& node, int version); // not idempotent
1867 XMLNode& get_template ();
1870 typedef std::list<Click*> Clicks;
1873 bool _click_rec_only;
1874 boost::shared_ptr<IO> _click_io;
1875 boost::shared_ptr<Amp> _click_gain;
1877 Sample* click_emphasis_data;
1878 samplecnt_t click_length;
1879 samplecnt_t click_emphasis_length;
1880 mutable Glib::Threads::RWLock click_lock;
1882 static const Sample default_click[];
1883 static const samplecnt_t default_click_length;
1884 static const Sample default_click_emphasis[];
1885 static const samplecnt_t default_click_emphasis_length;
1888 samplepos_t _clicks_cleared;
1889 void setup_click_sounds (int which);
1890 void setup_click_sounds (Sample**, Sample const *, samplecnt_t*, samplecnt_t, std::string const &);
1891 void clear_clicks ();
1892 void click (samplepos_t start, samplecnt_t nframes);
1893 void run_click (samplepos_t start, samplecnt_t nframes);
1894 void add_click (samplepos_t pos, bool emphasis);
1895 samplecnt_t _count_in_samples;
1897 /* range playback */
1899 std::list<AudioRange> current_audio_range;
1901 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1902 void unset_play_range ();
1904 /* temporary hacks to allow selection to be pushed from GUI into backend
1905 Whenever we move the selection object into libardour, these will go away.
1907 Evoral::Range<samplepos_t> _range_selection;
1908 Evoral::Range<samplepos_t> _object_selection;
1910 void unset_preroll_record_trim ();
1912 samplecnt_t _preroll_record_trim_len;
1913 bool _count_in_once;
1918 boost::shared_ptr<Route> _master_out;
1919 boost::shared_ptr<Route> _monitor_out;
1921 void auto_connect_master_bus ();
1923 int find_all_sources (std::string path, std::set<std::string>& result);
1924 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1926 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1927 Glib::Threads::Mutex controllables_lock;
1928 Controllables controllables;
1930 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1932 void reset_native_file_format();
1933 bool first_file_data_format_reset;
1934 bool first_file_header_format_reset;
1936 void config_changed (std::string, bool);
1938 XMLNode& get_control_protocol_state ();
1940 void set_history_depth (uint32_t depth);
1942 static bool _disable_all_loaded_plugins;
1943 static bool _bypass_all_loaded_plugins;
1945 mutable bool have_looped; ///< Used in ::audible_sample(*)
1947 void update_route_record_state ();
1948 gint _have_rec_enabled_track;
1949 gint _have_rec_disabled_track;
1951 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1953 /* realtime "apply to set of routes" operations */
1954 template<typename T> SessionEvent*
1955 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1956 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1957 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1958 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1959 ev->rt_return = after;
1960 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1965 /* specialized version realtime "apply to set of routes" operations */
1966 template<typename T1, typename T2> SessionEvent*
1967 get_rt_event (boost::shared_ptr<RouteList> rl, T1 t1arg, T2 t2arg, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1968 void (Session::*method) (boost::shared_ptr<RouteList>, T1, T2, PBD::Controllable::GroupControlDisposition)) {
1969 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1970 ev->rt_slot = boost::bind (method, this, rl, t1arg, t2arg, group_override);
1971 ev->rt_return = after;
1972 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1977 /* specialized version realtime "apply to set of controls" operations */
1978 SessionEvent* get_rt_event (boost::shared_ptr<ControlList> cl, double arg, PBD::Controllable::GroupControlDisposition group_override) {
1979 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1980 ev->rt_slot = boost::bind (&Session::rt_set_controls, this, cl, arg, group_override);
1981 ev->rt_return = Session::rt_cleanup;
1982 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1987 void rt_set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition group_override);
1988 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1990 void set_session_range_location (samplepos_t, samplepos_t);
1992 void setup_midi_machine_control ();
1994 void step_edit_status_change (bool);
1995 uint32_t _step_editors;
1997 /** true if timecode transmission by the transport is suspended, otherwise false */
1998 mutable gint _suspend_timecode_transmission;
2000 void update_locations_after_tempo_map_change (const Locations::LocationList &);
2002 void start_time_changed (samplepos_t);
2003 void end_time_changed (samplepos_t);
2005 void set_track_monitor_input_status (bool);
2006 samplepos_t compute_stop_limit () const;
2008 boost::shared_ptr<Speakers> _speakers;
2009 void load_nested_sources (const XMLNode& node);
2011 /** The directed graph of routes that is currently being used for audio processing
2012 and solo/mute computations.
2014 GraphEdges _current_route_graph;
2016 void ensure_route_presentation_info_gap (PresentationInfo::order_t, uint32_t gap_size);
2018 friend class ProcessorChangeBlocker;
2019 gint _ignore_route_processor_changes; /* atomic */
2021 MidiClockTicker* midi_clock;
2023 boost::shared_ptr<IO> _ltc_output;
2025 boost::shared_ptr<RTTaskList> _rt_tasklist;
2027 /* Scene Changing */
2028 SceneChanger* _scene_changer;
2030 /* persistent, non-track related MIDI ports */
2031 MidiPortManager* _midi_ports;
2032 MIDI::MachineControl* _mmc;
2035 void setup_click ();
2036 void setup_click_state (const XMLNode*);
2037 void setup_bundles ();
2039 void save_as_bring_callback (uint32_t, uint32_t, std::string);
2041 static const uint32_t session_end_shift;
2043 std::string _template_state_dir;
2045 VCAManager* _vca_manager;
2047 boost::shared_ptr<Route> get_midi_nth_route_by_id (PresentationInfo::order_t n) const;
2049 std::string created_with;
2051 void midi_track_presentation_info_changed (PBD::PropertyChange const &, boost::weak_ptr<MidiTrack>);
2052 void rewire_selected_midi (boost::shared_ptr<MidiTrack>);
2053 void rewire_midi_selection_ports ();
2054 boost::weak_ptr<MidiTrack> current_midi_target;
2056 StripableList _soloSelection; //the items that are soloe'd during a solo-selection operation; need to unsolo after the roll
2058 CoreSelection* _selection;
2060 bool _global_locate_pending;
2064 } // namespace ARDOUR
2066 #endif /* __ardour_session_h__ */