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;
158 class WindowsVSTPlugin;
160 extern void setup_enum_writer ();
162 class LIBARDOUR_API SessionException: public std::exception {
164 explicit SessionException(const std::string msg) : _message(msg) {}
165 virtual ~SessionException() throw() {}
167 virtual const char* what() const throw() { return _message.c_str(); }
170 std::string _message;
173 /** Ardour Session */
174 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
185 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
186 the bus profile can be null if no master out bus is required.
189 Session (AudioEngine&,
190 const std::string& fullpath,
191 const std::string& snapshot_name,
192 BusProfile* bus_profile = 0,
193 std::string mix_template = "");
197 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format, std::string& program_version);
198 static std::string get_snapshot_from_instant (const std::string& session_dir);
200 /** a monotonic counter used for naming user-visible things uniquely
201 * (curently the sidechain port).
202 * Use sparingly to keep the numbers low, prefer PBD::ID for all
203 * internal, not user-visible IDs */
204 static unsigned int next_name_id ();
206 std::string path() const { return _path; }
207 std::string name() const { return _name; }
208 std::string snap_name() const { return _current_snapshot_name; }
209 std::string raid_path () const;
210 bool path_is_within_session (const std::string&);
212 bool writable() const { return _writable; }
215 bool dirty() const { return _state_of_the_state & Dirty; }
216 void set_deletion_in_progress ();
217 void clear_deletion_in_progress ();
218 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
219 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
220 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
221 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
222 bool loading () const { return _state_of_the_state & Loading; }
224 PBD::Signal0<void> DirtyChanged;
226 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
228 static PBD::Signal1<void,std::string> Dialog;
230 PBD::Signal0<void> BatchUpdateStart;
231 PBD::Signal0<void> BatchUpdateEnd;
233 int ensure_subdirs ();
235 std::string automation_dir () const; ///< Automation data
236 std::string analysis_dir () const; ///< Analysis data
237 std::string plugins_dir () const; ///< Plugin state
238 std::string externals_dir () const; ///< Links to external files
240 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
242 bool audio_source_name_is_unique (const std::string& name);
243 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);
244 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
245 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
246 std::string new_midi_source_path (const std::string&, bool need_source_lock = true);
247 /** create a new track or bus from a template (XML path)
248 * @param how_many how many tracks or busses to create
249 * @param template_path path to xml template file
250 * @param name name (prefix) of the route to create
251 * @param pd Playlist disposition
252 * @return list of newly created routes
254 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);
255 RouteList new_route_from_template (uint32_t how_many, PresentationInfo::order_t insert_at, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
256 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path,
257 uint32_t channels, std::vector<std::string> const & smf_track_names);
259 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
261 void process (pframes_t nframes);
263 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
264 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
265 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
266 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
267 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
269 bool have_rec_enabled_track () const;
270 bool have_rec_disabled_track () const;
272 bool have_captured() const { return _have_captured; }
274 void refill_all_track_buffers ();
275 Butler* butler() { return _butler; }
276 void butler_transport_work ();
278 void refresh_disk_space ();
280 int load_routes (const XMLNode&, int);
281 boost::shared_ptr<RouteList> get_routes() const {
282 return routes.reader ();
285 boost::shared_ptr<RTTaskList> rt_tasklist () { return _rt_tasklist; }
287 CoreSelection& selection () { return *_selection; }
289 /* because the set of Stripables consists of objects managed
290 * independently, in multiple containers within the Session (or objects
291 * owned by the session), we fill out a list in-place rather than
292 * return a pointer to a copy of the (RCU) managed list, as happens
296 void get_stripables (StripableList&) const;
297 StripableList get_stripables () const;
298 boost::shared_ptr<RouteList> get_tracks() const;
299 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
300 boost::shared_ptr<RouteList> get_routes_with_regions_at (samplepos_t const) const;
302 uint32_t nstripables (bool with_monitor = false) const;
303 uint32_t nroutes() const { return routes.reader()->size(); }
304 uint32_t ntracks () const;
305 uint32_t nbusses () const;
307 boost::shared_ptr<BundleList> bundles () {
308 return _bundles.reader ();
311 void notify_presentation_info_change ();
313 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
314 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
315 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
317 static char session_name_is_legal (const std::string&);
318 bool io_name_is_legal (const std::string&) const;
319 boost::shared_ptr<Route> route_by_name (std::string) const;
320 boost::shared_ptr<Route> route_by_id (PBD::ID) const;
321 boost::shared_ptr<Stripable> stripable_by_id (PBD::ID) const;
322 boost::shared_ptr<Stripable> get_remote_nth_stripable (PresentationInfo::order_t n, PresentationInfo::Flag) const;
323 boost::shared_ptr<Route> get_remote_nth_route (PresentationInfo::order_t n) const;
324 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt) const;
325 void routes_using_input_from (const std::string& str, RouteList& rl);
327 bool route_name_unique (std::string) const;
328 bool route_name_internal (std::string) const;
330 uint32_t track_number_decimals () const {
331 return _track_number_decimals;
334 bool get_record_enabled() const {
335 return (record_status () >= Enabled);
338 RecordState record_status() const {
339 return (RecordState) g_atomic_int_get (&_record_status);
342 bool actively_recording () const {
343 return record_status() == Recording;
346 bool record_enabling_legal () const;
347 void maybe_enable_record (bool rt_context = false);
348 void disable_record (bool rt_context, bool force = false);
349 void step_back_from_record ();
351 void set_all_tracks_record_enabled(bool);
353 void maybe_write_autosave ();
355 /* Emitted when all i/o connections are complete */
357 PBD::Signal0<void> IOConnectionsComplete;
359 /* Timecode status signals */
360 PBD::Signal1<void, bool> MTCSyncStateChanged;
361 PBD::Signal1<void, bool> LTCSyncStateChanged;
363 /* Record status signals */
365 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
366 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
367 from the previous signal and session state.
369 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
371 /* Emited when session is loaded */
372 PBD::Signal0<void> SessionLoaded;
374 /* Transport mechanism signals */
376 /** Emitted on the following changes in transport state:
377 * - stop (from the butler thread)
378 * - change in whether or not we are looping (from the process thread)
379 * - change in the play range (from the process thread)
380 * - start (from the process thread)
383 PBD::Signal0<void> TransportStateChange;
385 PBD::Signal1<void,samplepos_t> PositionChanged; /* sent after any non-sequential motion */
386 PBD::Signal1<void,samplepos_t> Xrun;
387 PBD::Signal0<void> TransportLooped;
389 /** emitted when a locate has occurred */
390 PBD::Signal0<void> Located;
392 PBD::Signal1<void,RouteList&> RouteAdded;
393 /** Emitted when a property of one of our route groups changes.
394 * The parameter is the RouteGroup that has changed.
396 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
397 /** Emitted when a route is added to one of our route groups.
398 * First parameter is the RouteGroup, second is the route.
400 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
401 /** Emitted when a route is removed from one of our route groups.
402 * First parameter is the RouteGroup, second is the route.
404 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
406 /* Step Editing status changed */
407 PBD::Signal1<void,bool> StepEditStatusChange;
409 /* Timecode state signals */
410 PBD::Signal0<void> MtcOrLtcInputPortChanged;
412 void queue_event (SessionEvent*);
414 void request_roll_at_and_return (samplepos_t start, samplepos_t return_to);
415 void request_bounded_roll (samplepos_t start, samplepos_t end);
416 void request_stop (bool abort = false, bool clear_state = false);
417 void request_locate (samplepos_t sample, bool with_roll = false);
419 void request_play_loop (bool yn, bool leave_rolling = false);
420 bool get_play_loop () const { return play_loop; }
422 samplepos_t last_transport_start () const { return _last_roll_location; }
424 void goto_start (bool and_roll = false);
425 void use_rf_shuttle_speed ();
426 void allow_auto_play (bool yn);
427 void request_transport_speed (double speed, bool as_default = true);
428 void request_transport_speed_nonzero (double, bool as_default = true);
429 void request_overwrite_buffer (boost::shared_ptr<Route>);
430 void adjust_playback_buffering();
431 void adjust_capture_buffering();
433 bool global_locate_pending() const { return _global_locate_pending; }
434 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
435 bool transport_locked () const;
439 samplepos_t current_end_sample () const;
440 samplepos_t current_start_sample () const;
441 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
442 samplecnt_t sample_rate () const { return _current_sample_rate; }
443 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
444 samplecnt_t nominal_sample_rate () const { return _nominal_sample_rate; }
445 samplecnt_t frames_per_hour () const { return _frames_per_hour; }
447 double samples_per_timecode_frame() const { return _samples_per_timecode_frame; }
448 samplecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
450 MIDI::byte get_mtc_timecode_bits() const {
451 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
454 double timecode_frames_per_second() const;
455 bool timecode_drop_frames() const;
459 Locations *locations() { return _locations; }
461 PBD::Signal1<void,Location*> auto_loop_location_changed;
462 PBD::Signal1<void,Location*> auto_punch_location_changed;
463 PBD::Signal0<void> locations_modified;
465 void set_auto_punch_location (Location *);
466 void set_auto_loop_location (Location *);
467 void set_session_extents (samplepos_t start, samplepos_t end);
468 bool end_is_free () const { return _session_range_end_is_free; }
469 void set_end_is_free (bool);
471 pframes_t get_block_size () const { return current_block_size; }
472 samplecnt_t worst_output_latency () const { return _worst_output_latency; }
473 samplecnt_t worst_input_latency () const { return _worst_input_latency; }
474 samplecnt_t worst_route_latency () const { return _worst_route_latency; }
475 samplecnt_t worst_latency_preroll () const;
478 std::string new_parent_folder; /* parent folder where new session folder will be created */
479 std::string new_name; /* name of newly saved session */
480 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
481 bool include_media; /* true if the newly saved session should contain references to media */
482 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
483 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
485 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
487 /* emitted as we make progress. 3 arguments passed to signal
490 * 1: percentage complete measured as a fraction (0-1.0) of
491 * total data copying done.
492 * 2: number of files copied so far
493 * 3: total number of files to copy
495 * Handler should return true for save-as to continue, or false
496 * to stop (and remove all evidence of partial save-as).
498 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
500 /* if save_as() returns non-zero, this string will indicate the reason why.
502 std::string failure_message;
505 int save_as (SaveAs&);
508 * @param snapshot_name name of the session (use an empty string for the current name)
509 * @param pending save a 'recovery', not full state (default: false)
510 * @param switch_to_snapshot switch to given snapshot after saving (default: false)
511 * @param template_only save a session template (default: false)
512 * @return zero on success
514 int save_state (std::string snapshot_name,
515 bool pending = false,
516 bool switch_to_snapshot = false,
517 bool template_only = false,
518 bool for_archive = false,
519 bool only_used_assets = false);
527 int archive_session (const std::string&, const std::string&,
528 ArchiveEncode compress_audio = FLAC_16BIT,
529 PBD::FileArchive::CompressionLevel compression_level = PBD::FileArchive::CompressGood,
530 bool only_used_sources = false,
533 int restore_state (std::string snapshot_name);
534 int save_template (const std::string& template_name, const std::string& description = "", bool replace_existing = false);
535 int save_history (std::string snapshot_name = "");
536 int restore_history (std::string snapshot_name);
537 void remove_state (std::string snapshot_name);
538 void rename_state (std::string old_name, std::string new_name);
539 void remove_pending_capture_state ();
540 int rename (const std::string&);
541 bool get_nsm_state () const { return _under_nsm_control; }
542 void set_nsm_state (bool state) { _under_nsm_control = state; }
543 bool save_default_options ();
545 PBD::Signal1<void,std::string> StateSaved;
546 PBD::Signal0<void> StateReady;
548 /* emitted when session needs to be saved due to some internal
549 * event or condition (i.e. not in response to a user request).
551 * Only one object should
552 * connect to this signal and take responsibility.
554 * Argument is the snapshot name to use when saving.
556 PBD::Signal1<void,std::string> SaveSessionRequested;
558 /* emitted during a session save to allow other entities to add state, via
559 * extra XML, to the session state
561 PBD::Signal0<void> SessionSaveUnderway;
563 std::vector<std::string> possible_states() const;
564 static std::vector<std::string> possible_states (std::string path);
566 bool export_track_state (boost::shared_ptr<RouteList> rl, const std::string& path);
568 /// The instant xml file is written to the session directory
569 void add_instant_xml (XMLNode&, bool write_to_config = true);
570 XMLNode* instant_xml (const std::string& str);
572 enum StateOfTheState {
577 InitialConnecting = 0x8,
583 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
585 class StateProtector {
587 StateProtector (Session* s) : _session (s) {
588 g_atomic_int_inc (&s->_suspend_save);
591 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
592 while (_session->_save_queued) {
593 _session->_save_queued = false;
594 _session->save_state ("");
602 class ProcessorChangeBlocker {
604 ProcessorChangeBlocker (Session* s, bool rc = true)
606 , _reconfigure_on_delete (rc)
608 g_atomic_int_inc (&s->_ignore_route_processor_changes);
610 ~ProcessorChangeBlocker () {
611 if (g_atomic_int_dec_and_test (&_session->_ignore_route_processor_changes)) {
612 if (_reconfigure_on_delete) {
613 _session->route_processors_changed (RouteProcessorChange ());
619 bool _reconfigure_on_delete;
622 RouteGroup* new_route_group (const std::string&);
623 void add_route_group (RouteGroup *);
624 void remove_route_group (RouteGroup* rg) { if (rg) remove_route_group (*rg); }
625 void remove_route_group (RouteGroup&);
626 void reorder_route_groups (std::list<RouteGroup*>);
628 RouteGroup* route_group_by_name (std::string);
629 RouteGroup& all_route_group() const;
631 PBD::Signal1<void,RouteGroup*> route_group_added;
632 PBD::Signal0<void> route_group_removed;
633 PBD::Signal0<void> route_groups_reordered;
635 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
636 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
641 std::list<RouteGroup*> const & route_groups () const {
642 return _route_groups;
645 /* fundamental operations. duh. */
647 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
650 RouteGroup* route_group,
652 std::string name_template,
653 PresentationInfo::order_t order,
654 TrackMode mode = Normal
657 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
658 const ChanCount& input, const ChanCount& output, bool strict_io,
659 boost::shared_ptr<PluginInfo> instrument,
660 Plugin::PresetRecord* pset,
661 RouteGroup* route_group, uint32_t how_many, std::string name_template,
662 PresentationInfo::order_t,
663 TrackMode mode = Normal
666 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);
667 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);
669 void remove_routes (boost::shared_ptr<RouteList>);
670 void remove_route (boost::shared_ptr<Route>);
672 void resort_routes ();
673 void resort_routes_using (boost::shared_ptr<RouteList>);
675 AudioEngine & engine() { return _engine; }
676 AudioEngine const & engine () const { return _engine; }
678 static std::string default_track_name_pattern (DataType);
682 samplepos_t transport_sample () const { return _transport_sample; }
683 samplepos_t record_location () const { return _last_record_location; }
684 samplepos_t audible_sample (bool* latent_locate = NULL) const;
685 samplepos_t requested_return_sample() const { return _requested_return_sample; }
686 void set_requested_return_sample(samplepos_t return_to);
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 (Slave*);
721 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
722 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
723 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
725 double engine_speed() const { return _engine_speed; }
726 double actual_speed() const {
727 if (_transport_speed > 0) return _engine_speed;
728 if (_transport_speed < 0) return - _engine_speed;
731 double transport_speed() const { return _count_in_samples > 0 ? 0. : _transport_speed; }
732 bool transport_stopped() const { return _transport_speed == 0.0; }
733 bool transport_rolling() const { return _transport_speed != 0.0 && _count_in_samples == 0 && _remaining_latency_preroll == 0; }
735 bool silent () { return _silent; }
737 TempoMap& tempo_map() { return *_tempo_map; }
738 const TempoMap& tempo_map() const { return *_tempo_map; }
740 unsigned int get_xrun_count () const {return _xrun_count; }
741 void reset_xrun_count () {_xrun_count = 0; }
745 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
747 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
748 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
749 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
751 /* source management */
753 void import_files (ImportStatus&);
754 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
755 std::string build_tmp_convert_name (std::string file);
757 boost::shared_ptr<ExportHandler> get_export_handler ();
758 boost::shared_ptr<ExportStatus> get_export_status ();
760 int start_audio_export (samplepos_t position, bool realtime = false, bool region_export = false);
762 PBD::Signal1<int, samplecnt_t> ProcessExport;
763 static PBD::Signal2<void,std::string, std::string> Exported;
765 void add_source (boost::shared_ptr<Source>);
766 void remove_source (boost::weak_ptr<Source>);
768 void cleanup_regions();
769 bool can_cleanup_peakfiles () const;
770 int cleanup_peakfiles ();
771 int cleanup_sources (CleanupReport&);
772 int cleanup_trash_sources (CleanupReport&);
774 int destroy_sources (std::list<boost::shared_ptr<Source> >);
776 int remove_last_capture ();
778 /** handlers should return 0 for "everything OK", and any other value for
779 * "cannot setup audioengine".
781 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
783 /** handlers should return -1 for "stop cleanup",
784 0 for "yes, delete this playlist",
785 1 for "no, don't delete this playlist".
787 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
789 /** handlers should return 0 for "ignore the rate mismatch",
790 !0 for "do not use this session"
792 static PBD::Signal2<int, samplecnt_t, samplecnt_t> AskAboutSampleRateMismatch;
794 /** non interactive message */
795 static PBD::Signal2<void, samplecnt_t, samplecnt_t> NotifyAboutSampleRateMismatch;
797 /** handlers should return !0 for use pending state, 0 for ignore it.
799 static PBD::Signal0<int> AskAboutPendingState;
801 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
802 size_t, std::string const &, uint32_t, bool destructive);
804 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
805 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
807 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
808 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
809 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&, bool need_source_lock) const;
810 uint32_t count_sources_by_origin (const std::string&);
812 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
814 /* Curves and AutomationLists (TODO when they go away) */
815 void add_automation_list(AutomationList*);
819 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
820 void audition_playlist ();
821 void audition_region (boost::shared_ptr<Region>);
822 void cancel_audition ();
823 bool is_auditioning () const;
825 PBD::Signal1<void,bool> AuditionActive;
828 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
829 void unregister_lua_function (const std::string& name);
830 std::vector<std::string> registered_lua_functions ();
831 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
832 void scripts_changed (); // called from lua, updates _n_lua_scripts
834 PBD::Signal0<void> LuaScriptsChanged;
836 /* flattening stuff */
838 boost::shared_ptr<Region> write_one_track (Track&, samplepos_t start, samplepos_t end,
839 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
840 boost::shared_ptr<Processor> endpoint,
841 bool include_endpoint, bool for_export, bool for_freeze);
842 int freeze_all (InterThreadInfo&);
844 /* session-wide solo/mute/rec-enable */
847 std::vector<boost::weak_ptr<AutomationControl> > cancel_all_mute ();
849 bool soloing() const { return _non_soloed_outs_muted; }
850 bool listening() const { return _listen_cnt > 0; }
851 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
852 void cancel_all_solo ();
854 bool solo_selection_active();
855 void solo_selection( StripableList&, bool );
857 static const SessionEvent::RTeventCallback rt_cleanup;
859 void clear_all_solo_state (boost::shared_ptr<RouteList>);
861 /* Control-based methods */
863 void set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition);
864 void set_control (boost::shared_ptr<AutomationControl>, double val, PBD::Controllable::GroupControlDisposition);
866 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
868 PBD::Signal1<void,bool> SoloActive;
869 PBD::Signal0<void> SoloChanged;
870 PBD::Signal0<void> MuteChanged;
871 PBD::Signal0<void> IsolatedChanged;
872 PBD::Signal0<void> MonitorChanged;
874 PBD::Signal0<void> session_routes_reconnected;
876 /* monitor/master out */
877 int add_master_bus (ChanCount const&);
879 void add_monitor_section ();
880 void reset_monitor_section ();
881 void remove_monitor_section ();
882 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
884 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
885 boost::shared_ptr<Route> master_out() const { return _master_out; }
887 PresentationInfo::order_t master_order_key () const { return _master_out ? _master_out->presentation_info ().order () : -1; }
888 bool ensure_stripable_sort_order ();
890 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
891 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
892 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
893 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
894 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
895 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
896 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
898 static void set_disable_all_loaded_plugins (bool yn) {
899 _disable_all_loaded_plugins = yn;
901 static bool get_disable_all_loaded_plugins() {
902 return _disable_all_loaded_plugins;
904 static void set_bypass_all_loaded_plugins (bool yn) {
905 _bypass_all_loaded_plugins = yn;
907 static bool get_bypass_all_loaded_plugins() {
908 return _bypass_all_loaded_plugins;
911 uint32_t next_send_id();
912 uint32_t next_aux_send_id();
913 uint32_t next_return_id();
914 uint32_t next_insert_id();
915 void mark_send_id (uint32_t);
916 void mark_aux_send_id (uint32_t);
917 void mark_return_id (uint32_t);
918 void mark_insert_id (uint32_t);
919 void unmark_send_id (uint32_t);
920 void unmark_aux_send_id (uint32_t);
921 void unmark_return_id (uint32_t);
922 void unmark_insert_id (uint32_t);
924 /* s/w "RAID" management */
926 boost::optional<samplecnt_t> available_capture_duration();
930 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
931 void remove_bundle (boost::shared_ptr<Bundle>);
932 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
934 PBD::Signal0<void> BundleAddedOrRemoved;
938 /* History (for editors, mixers, UIs etc.) */
940 /** Undo some transactions.
941 * @param n Number of transactions to undo.
943 void undo (uint32_t n);
944 /** Redo some transactions.
945 * @param n Number of transactions to undo.
947 void redo (uint32_t n);
949 UndoHistory& history() { return _history; }
951 uint32_t undo_depth() const { return _history.undo_depth(); }
952 uint32_t redo_depth() const { return _history.redo_depth(); }
953 std::string next_undo() const { return _history.next_undo(); }
954 std::string next_redo() const { return _history.next_redo(); }
956 /** begin collecting undo information
958 * This call must always be followed by either
959 * begin_reversible_command() or commit_reversible_command()
961 * @param cmd_name human readable name for the undo operation
963 void begin_reversible_command (const std::string& cmd_name);
964 void begin_reversible_command (GQuark);
965 /** abort an open undo command
966 * This must only be called after begin_reversible_command ()
968 void abort_reversible_command ();
969 /** finalize an undo command and commit pending transactions
971 * This must only be called after begin_reversible_command ()
972 * @param cmd (additional) command to add
974 void commit_reversible_command (Command* cmd = 0);
976 void add_command (Command *const cmd);
978 /** create an StatefulDiffCommand from the given object and add it to the stack.
980 * This function must only be called after begin_reversible_command.
981 * Failing to do so may lead to a crash.
983 * @param sfd the object to diff
984 * @returns the allocated StatefulDiffCommand (already added via add_command)
986 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
988 /** @return The list of operations that are currently in progress */
989 std::list<GQuark> const & current_operations () {
990 return _current_trans_quarks;
993 bool operation_in_progress (GQuark) const;
995 void add_commands (std::vector<Command*> const & cmds);
997 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
999 // these commands are implemented in libs/ardour/session_command.cc
1000 Command* memento_command_factory(XMLNode* n);
1001 Command* stateful_diff_command_factory (XMLNode *);
1002 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
1006 boost::shared_ptr<IO> click_io() { return _click_io; }
1007 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
1009 /* disk, buffer loads */
1011 uint32_t playback_load ();
1012 uint32_t capture_load ();
1016 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
1017 void request_cancel_play_range ();
1018 bool get_play_range () const { return _play_range; }
1020 void maybe_update_session_range (samplepos_t, samplepos_t);
1023 samplecnt_t preroll_samples (samplepos_t) const;
1025 void request_preroll_record_trim (samplepos_t start, samplecnt_t preroll);
1026 void request_count_in_record ();
1028 samplecnt_t preroll_record_trim_len () const { return _preroll_record_trim_len; }
1030 /* temporary hacks to allow selection to be pushed from GUI into backend.
1031 Whenever we move the selection object into libardour, these will go away.
1033 void set_range_selection (samplepos_t start, samplepos_t end);
1034 void set_object_selection (samplepos_t start, samplepos_t end);
1035 void clear_range_selection ();
1036 void clear_object_selection ();
1038 /* buffers for gain and pan */
1040 gain_t* gain_automation_buffer () const;
1041 gain_t* trim_automation_buffer () const;
1042 gain_t* send_gain_automation_buffer () const;
1043 gain_t* scratch_automation_buffer () const;
1044 pan_t** pan_automation_buffer () const;
1046 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
1050 static int vst_current_loading_id;
1051 static const char* vst_can_do_strings[];
1052 static const int vst_can_do_string_count;
1054 static intptr_t vst_callback (
1063 static PBD::Signal0<void> SendFeedback;
1067 boost::shared_ptr<Speakers> get_speakers ();
1071 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
1073 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
1074 boost::shared_ptr<AutomationControl> automation_control_by_id (const PBD::ID&);
1076 void add_controllable (boost::shared_ptr<PBD::Controllable>);
1077 void remove_controllable (PBD::Controllable*);
1079 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
1081 SessionConfiguration config;
1083 SessionConfiguration* cfg () { return &config; }
1085 bool exporting () const {
1089 bool bounce_processing() const {
1090 return _bounce_processing_active;
1093 /* this is a private enum, but setup_enum_writer() needs it,
1094 and i can't find a way to give that function
1095 friend access. sigh.
1098 enum PostTransportWork {
1099 PostTransportStop = 0x1,
1100 PostTransportDuration = 0x2,
1101 PostTransportLocate = 0x4,
1102 PostTransportRoll = 0x8,
1103 PostTransportAbort = 0x10,
1104 PostTransportOverWrite = 0x20,
1105 PostTransportSpeed = 0x40,
1106 PostTransportAudition = 0x80,
1107 PostTransportReverse = 0x100,
1108 PostTransportInputChange = 0x200,
1109 PostTransportCurveRealloc = 0x400,
1110 PostTransportClearSubstate = 0x800,
1111 PostTransportAdjustPlaybackBuffering = 0x1000,
1112 PostTransportAdjustCaptureBuffering = 0x2000
1121 SlaveState slave_state() const { return _slave_state; }
1122 Slave* slave() const { return _slave; }
1124 boost::shared_ptr<SessionPlaylists> playlists;
1126 void send_mmc_locate (samplepos_t);
1127 void queue_full_time_code () { _send_timecode_update = true; }
1128 void queue_song_position_pointer () { /* currently does nothing */ }
1130 bool step_editing() const { return (_step_editors > 0); }
1132 void request_suspend_timecode_transmission ();
1133 void request_resume_timecode_transmission ();
1134 bool timecode_transmission_suspended () const;
1136 std::vector<std::string> source_search_path(DataType) const;
1137 void ensure_search_path_includes (const std::string& path, DataType type);
1138 void remove_dir_from_search_path (const std::string& path, DataType type);
1140 std::list<std::string> unknown_processors () const;
1142 /** Emitted when a feedback cycle has been detected within Ardour's signal
1143 processing path. Until it is fixed (by the user) some (unspecified)
1144 routes will not be run.
1146 static PBD::Signal0<void> FeedbackDetected;
1148 /** Emitted when a graph sort has successfully completed, which means
1149 that it has no feedback cycles.
1151 static PBD::Signal0<void> SuccessfulGraphSort;
1153 /* handlers can return an integer value:
1154 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1155 to modify the search path and we should try to find it again.
1156 1: quit entire session load
1157 2: as 0, but don't ask about other missing files
1158 3: don't ask about other missing files, and just mark this one missing
1159 -1: just mark this one missing
1160 any other value: as -1
1162 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1164 void set_missing_file_replacement (const std::string& mfr) {
1165 _missing_file_replacement = mfr;
1168 /** Emitted when the session wants Ardour to quit */
1169 static PBD::Signal0<void> Quit;
1171 /** Emitted when Ardour is asked to load a session in an older session
1172 * format, and makes a backup copy.
1174 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1176 SceneChanger* scene_changer() const { return _scene_changer; }
1178 /* asynchronous MIDI control ports */
1180 boost::shared_ptr<Port> midi_input_port () const;
1181 boost::shared_ptr<Port> midi_output_port () const;
1182 boost::shared_ptr<Port> mmc_output_port () const;
1183 boost::shared_ptr<Port> mmc_input_port () const;
1184 boost::shared_ptr<Port> scene_input_port () const;
1185 boost::shared_ptr<Port> scene_output_port () const;
1187 /* synchronous MIDI ports used for synchronization */
1189 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1190 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1191 boost::shared_ptr<MidiPort> mtc_output_port () const;
1192 boost::shared_ptr<MidiPort> mtc_input_port () const;
1193 boost::shared_ptr<Port> ltc_input_port() const;
1194 boost::shared_ptr<Port> ltc_output_port() const;
1196 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1197 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1199 MIDI::MachineControl& mmc() { return *_mmc; }
1201 void reconnect_midi_scene_ports (bool);
1202 void reconnect_mtc_ports ();
1203 void reconnect_mmc_ports (bool);
1205 void reconnect_ltc_input ();
1206 void reconnect_ltc_output ();
1208 VCAManager& vca_manager() { return *_vca_manager; }
1209 VCAManager* vca_manager_ptr() { return _vca_manager; }
1211 void auto_connect_thread_wakeup ();
1215 friend class AudioEngine;
1216 void set_block_size (pframes_t nframes);
1217 void set_sample_rate (samplecnt_t nframes);
1218 #ifdef USE_TRACKS_CODE_FEATURES
1219 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1223 void schedule_curve_reallocation ();
1224 void update_latency_compensation (bool force = false);
1227 int create (const std::string& mix_template, BusProfile*);
1230 static guint _name_id_counter;
1231 static void init_name_id_counter (guint n);
1232 static unsigned int name_id_counter ();
1234 /* stuff used in process() should be close together to
1238 typedef void (Session::*process_function_type)(pframes_t);
1240 AudioEngine& _engine;
1241 mutable gint processing_prohibited;
1242 process_function_type process_function;
1243 process_function_type last_process_function;
1244 bool _bounce_processing_active;
1245 bool waiting_for_sync_offset;
1246 samplecnt_t _base_sample_rate; // sample-rate of the session at creation time, "native" SR
1247 samplecnt_t _nominal_sample_rate; // overridden by audioengine setting
1248 samplecnt_t _current_sample_rate; // this includes video pullup offset
1249 int transport_sub_state;
1250 mutable gint _record_status;
1251 samplepos_t _transport_sample;
1253 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1254 bool _session_range_end_is_free;
1257 samplecnt_t _remaining_latency_preroll;
1259 // varispeed playback -- TODO: move out of session to backend.
1260 double _engine_speed;
1261 double _transport_speed; // only: -1, 0, +1
1262 double _default_transport_speed;
1263 double _last_transport_speed;
1264 double _signalled_varispeed;
1265 double _target_transport_speed;
1267 bool auto_play_legal;
1268 samplepos_t _last_slave_transport_sample;
1269 samplepos_t _requested_return_sample;
1270 pframes_t current_block_size;
1271 samplecnt_t _worst_output_latency;
1272 samplecnt_t _worst_input_latency;
1273 samplecnt_t _worst_route_latency;
1274 uint32_t _send_latency_changes;
1275 bool _have_captured;
1276 bool _non_soloed_outs_muted;
1278 uint32_t _listen_cnt;
1279 uint32_t _solo_isolated_cnt;
1282 bool _under_nsm_control;
1283 unsigned int _xrun_count;
1285 std::string _missing_file_replacement;
1287 void mtc_status_changed (bool);
1288 PBD::ScopedConnection mtc_status_connection;
1289 void ltc_status_changed (bool);
1290 PBD::ScopedConnection ltc_status_connection;
1292 void initialize_latencies ();
1293 void update_latency (bool playback);
1294 bool update_route_latency (bool reverse, bool apply_to_delayline);
1296 void set_worst_io_latencies ();
1297 void set_worst_output_latency ();
1298 void set_worst_input_latency ();
1300 void send_latency_compensation_change ();
1301 void set_worst_io_latencies_x (IOChange, void *);
1303 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1305 void process_scrub (pframes_t);
1306 void process_without_events (pframes_t);
1307 void process_with_events (pframes_t);
1308 void process_audition (pframes_t);
1309 void process_export (pframes_t);
1310 void process_export_fw (pframes_t);
1312 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1313 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1314 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1316 static const samplecnt_t bounce_chunk_size;
1318 /* slave tracking */
1320 static const int delta_accumulator_size = 25;
1321 int delta_accumulator_cnt;
1322 int32_t delta_accumulator[delta_accumulator_size];
1323 int32_t average_slave_delta;
1325 bool have_first_delta_accumulator;
1327 SlaveState _slave_state;
1330 samplepos_t slave_wait_end;
1332 void reset_slave_state ();
1333 bool follow_slave (pframes_t);
1334 void calculate_moving_average_of_slave_delta (int dir, samplecnt_t this_delta);
1335 void track_slave_state (float slave_speed, samplepos_t slave_transport_sample, samplecnt_t this_delta);
1337 void switch_to_sync_source (SyncSource); /* !RT context */
1338 void drop_sync_source (); /* !RT context */
1339 void use_sync_source (Slave*); /* RT context */
1341 bool post_export_sync;
1342 samplepos_t post_export_position;
1345 bool _export_rolling;
1346 bool _realtime_export;
1347 bool _region_export;
1348 samplepos_t _export_preroll;
1350 boost::shared_ptr<ExportHandler> export_handler;
1351 boost::shared_ptr<ExportStatus> export_status;
1354 int stop_audio_export ();
1355 void finalize_audio_export ();
1356 void finalize_export_internal (bool stop_freewheel);
1357 bool _pre_export_mmc_enabled;
1359 PBD::ScopedConnection export_freewheel_connection;
1361 void get_track_statistics ();
1362 int process_routes (pframes_t, bool& need_butler);
1363 int silent_process_routes (pframes_t, bool& need_butler);
1365 /** @return 1 if there is a pending declick fade-in,
1366 -1 if there is a pending declick fade-out,
1367 0 if there is no pending declick.
1369 bool maybe_stop (samplepos_t limit);
1370 bool maybe_sync_start (pframes_t &);
1376 /** Number of process samples since the last MTC output (when sending MTC); used to
1377 * know when to send full MTC messages every so often.
1379 pframes_t _pframes_since_last_mtc;
1382 samplepos_t last_loopend;
1384 boost::scoped_ptr<SessionDirectory> _session_dir;
1387 void graph_reordered ();
1389 /** current snapshot name, without the .ardour suffix */
1390 void set_snapshot_name (const std::string &);
1391 void save_snapshot_name (const std::string &);
1392 std::string _current_snapshot_name;
1394 XMLTree* state_tree;
1395 bool state_was_pending;
1396 StateOfTheState _state_of_the_state;
1398 friend class StateProtector;
1399 gint _suspend_save; /* atomic */
1400 volatile bool _save_queued;
1401 Glib::Threads::Mutex save_state_lock;
1402 Glib::Threads::Mutex save_source_lock;
1403 Glib::Threads::Mutex peak_cleanup_lock;
1405 int load_options (const XMLNode&);
1406 int load_state (std::string snapshot_name);
1407 static int parse_stateful_loading_version (const std::string&);
1409 samplepos_t _last_roll_location;
1410 /** the session sample time at which we last rolled, located, or changed transport direction */
1411 samplepos_t _last_roll_or_reversal_location;
1412 samplepos_t _last_record_location;
1415 bool pending_auto_loop;
1417 PBD::ReallocPool _mempool;
1419 Glib::Threads::Mutex lua_lock;
1420 luabridge::LuaRef * _lua_run;
1421 luabridge::LuaRef * _lua_add;
1422 luabridge::LuaRef * _lua_del;
1423 luabridge::LuaRef * _lua_list;
1424 luabridge::LuaRef * _lua_load;
1425 luabridge::LuaRef * _lua_save;
1426 luabridge::LuaRef * _lua_cleanup;
1427 uint32_t _n_lua_scripts;
1430 void try_run_lua (pframes_t);
1434 static const PostTransportWork ProcessCannotProceedMask =
1436 PostTransportInputChange|
1437 PostTransportReverse|
1438 PostTransportCurveRealloc|
1439 PostTransportAudition|
1441 PostTransportClearSubstate);
1443 gint _post_transport_work; /* accessed only atomic ops */
1444 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1445 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1446 void add_post_transport_work (PostTransportWork ptw);
1448 void schedule_playback_buffering_adjustment ();
1449 void schedule_capture_buffering_adjustment ();
1451 uint32_t cumulative_rf_motion;
1454 void set_rf_speed (float speed);
1455 void reset_rf_scale (samplecnt_t samples_moved);
1457 Locations* _locations;
1458 void location_added (Location*);
1459 void location_removed (Location*);
1460 void locations_changed ();
1461 void _locations_changed (const Locations::LocationList&);
1463 void update_skips (Location*, bool consolidate);
1464 void update_marks (Location* loc);
1465 void consolidate_skips (Location*);
1466 void sync_locations_to_skips ();
1467 void _sync_locations_to_skips ();
1469 PBD::ScopedConnectionList skip_update_connections;
1470 bool _ignore_skips_updates;
1472 PBD::ScopedConnectionList punch_connections;
1473 void auto_punch_start_changed (Location *);
1474 void auto_punch_end_changed (Location *);
1475 void auto_punch_changed (Location *);
1477 PBD::ScopedConnectionList loop_connections;
1478 void auto_loop_changed (Location *);
1479 void auto_loop_declick_range (Location *, samplepos_t &, samplepos_t &);
1481 int ensure_engine (uint32_t desired_sample_rate, bool);
1482 void pre_engine_init (std::string path);
1483 int post_engine_init ();
1484 int immediately_post_engine ();
1485 void remove_empty_sounds ();
1487 void session_loaded ();
1489 void setup_midi_control ();
1490 int midi_read (MIDI::Port *);
1492 void enable_record ();
1494 void increment_transport_position (samplecnt_t val) {
1495 if (max_samplepos - val < _transport_sample) {
1496 _transport_sample = max_samplepos;
1498 _transport_sample += val;
1502 void decrement_transport_position (samplecnt_t val) {
1503 if (val < _transport_sample) {
1504 _transport_sample -= val;
1506 _transport_sample = 0;
1510 void post_transport_motion ();
1511 static void *session_loader_thread (void *arg);
1515 /* Signal Forwarding */
1516 void emit_route_signals ();
1517 void emit_thread_run ();
1518 static void *emit_thread (void *);
1519 void emit_thread_start ();
1520 void emit_thread_terminate ();
1522 pthread_t _rt_emit_thread;
1523 bool _rt_thread_active;
1525 pthread_mutex_t _rt_emit_mutex;
1526 pthread_cond_t _rt_emit_cond;
1527 bool _rt_emit_pending;
1529 /* Auto Connect Thread */
1530 static void *auto_connect_thread (void *);
1531 void auto_connect_thread_run ();
1532 void auto_connect_thread_start ();
1533 void auto_connect_thread_terminate ();
1535 pthread_t _auto_connect_thread;
1536 gint _ac_thread_active;
1537 pthread_mutex_t _auto_connect_mutex;
1538 pthread_cond_t _auto_connect_cond;
1540 struct AutoConnectRequest {
1542 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1543 const ChanCount& is,
1544 const ChanCount& os,
1545 const ChanCount& io,
1546 const ChanCount& oo)
1547 : route (boost::weak_ptr<Route> (r))
1548 , connect_inputs (ci)
1552 , output_offset (oo)
1555 boost::weak_ptr <Route> route;
1556 bool connect_inputs;
1557 ChanCount input_start;
1558 ChanCount output_start;
1559 ChanCount input_offset;
1560 ChanCount output_offset;
1563 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1564 Glib::Threads::Mutex _auto_connect_queue_lock;
1565 AutoConnectQueue _auto_connect_queue;
1566 guint _latency_recompute_pending;
1568 void get_physical_ports (std::vector<std::string>& inputs, std::vector<std::string>& outputs, DataType type,
1569 MidiPortFlags include = MidiPortFlags (0),
1570 MidiPortFlags exclude = MidiPortFlags (0));
1572 void auto_connect (const AutoConnectRequest&);
1573 void queue_latency_recompute ();
1575 /* SessionEventManager interface */
1577 void process_event (SessionEvent*);
1578 void set_next_event ();
1579 void cleanup_event (SessionEvent*,int);
1581 /* MIDI Machine Control */
1584 void spp_continue ();
1587 void mmc_deferred_play (MIDI::MachineControl &);
1588 void mmc_stop (MIDI::MachineControl &);
1589 void mmc_step (MIDI::MachineControl &, int);
1590 void mmc_pause (MIDI::MachineControl &);
1591 void mmc_record_pause (MIDI::MachineControl &);
1592 void mmc_record_strobe (MIDI::MachineControl &);
1593 void mmc_record_exit (MIDI::MachineControl &);
1594 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1595 void mmc_fast_forward (MIDI::MachineControl &);
1596 void mmc_rewind (MIDI::MachineControl &);
1597 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1598 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1599 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1601 struct timeval last_mmc_step;
1604 typedef boost::function<bool()> MidiTimeoutCallback;
1605 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1607 MidiTimeoutList midi_timeouts;
1608 bool mmc_step_timeout ();
1609 void send_immediate_mmc (MIDI::MachineControlCommand);
1611 MIDI::byte mtc_msg[16];
1612 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1613 MIDI::byte midi_msg[16];
1614 double outbound_mtc_timecode_frame;
1615 Timecode::Time transmitting_timecode_time;
1616 int next_quarter_frame_to_send;
1618 double _samples_per_timecode_frame; /* has to be floating point because of drop sample */
1619 samplecnt_t _frames_per_hour;
1620 samplecnt_t _timecode_frames_per_hour;
1622 /* cache the most-recently requested time conversions. This helps when we
1623 * have multiple clocks showing the same time (e.g. the transport sample) */
1624 bool last_timecode_valid;
1625 samplepos_t last_timecode_when;
1626 Timecode::Time last_timecode;
1628 bool _send_timecode_update; ///< Flag to send a full sample (Timecode) MTC message this cycle
1630 int send_midi_time_code_for_cycle (samplepos_t, samplepos_t, pframes_t nframes);
1632 LTCEncoder* ltc_encoder;
1633 ltcsnd_sample_t* ltc_enc_buf;
1635 Timecode::TimecodeFormat ltc_enc_tcformat;
1636 int32_t ltc_buf_off;
1637 int32_t ltc_buf_len;
1640 int32_t ltc_enc_byte;
1641 samplepos_t ltc_enc_pos;
1643 samplepos_t ltc_enc_off;
1645 samplepos_t ltc_prev_cycle;
1647 samplepos_t ltc_timecode_offset;
1648 bool ltc_timecode_negative_offset;
1650 LatencyRange ltc_out_latency;
1652 void ltc_tx_initialize();
1653 void ltc_tx_cleanup();
1654 void ltc_tx_reset();
1655 void ltc_tx_resync_latency();
1656 void ltc_tx_recalculate_position();
1657 void ltc_tx_parse_offset();
1658 void ltc_tx_send_time_code_for_cycle (samplepos_t, samplepos_t, double, double, pframes_t nframes);
1659 PBD::ScopedConnectionList ltc_tx_connections;
1662 void reset_record_status ();
1664 int no_roll (pframes_t nframes);
1665 int fail_roll (pframes_t nframes);
1667 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1668 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1670 MidiControlUI* midi_control_ui;
1672 int start_midi_thread ();
1674 void set_play_loop (bool yn, double speed);
1675 void unset_play_loop ();
1676 void overwrite_some_buffers (Track *);
1677 void flush_all_inserts ();
1678 int micro_locate (samplecnt_t distance);
1679 void locate (samplepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1680 void start_locate (samplepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1681 void force_locate (samplepos_t sample, bool with_roll = false);
1682 void set_transport_speed (double speed, samplepos_t destination_sample, bool abort = false, bool clear_state = false, bool as_default = false);
1683 void stop_transport (bool abort = false, bool clear_state = false);
1684 void start_transport ();
1685 void realtime_stop (bool abort, bool clear_state);
1686 void realtime_locate ();
1687 void non_realtime_start_scrub ();
1688 void non_realtime_set_speed ();
1689 void non_realtime_locate ();
1690 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1691 void non_realtime_overwrite (int entry_request_count, bool& finished);
1692 void post_transport ();
1693 void engine_halted ();
1694 void xrun_recovery ();
1695 void set_track_loop (bool);
1696 bool select_playhead_priority_target (samplepos_t&);
1697 void follow_playhead_priority ();
1699 /* These are synchronous and so can only be called from within the process
1703 int send_full_time_code (samplepos_t, pframes_t nframes);
1704 void send_song_position_pointer (samplepos_t);
1706 TempoMap *_tempo_map;
1707 void tempo_map_changed (const PBD::PropertyChange&);
1709 /* edit/mix groups */
1711 int load_route_groups (const XMLNode&, int);
1713 std::list<RouteGroup *> _route_groups;
1714 RouteGroup* _all_route_group;
1718 boost::shared_ptr<Graph> _process_graph;
1720 SerializedRCUManager<RouteList> routes;
1722 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save, PresentationInfo::order_t);
1723 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect, PresentationInfo::order_t);
1724 bool _adding_routes_in_progress;
1725 bool _reconnecting_routes_in_progress;
1726 bool _route_deletion_in_progress;
1728 uint32_t destructive_index;
1730 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1731 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1732 boost::shared_ptr<Route> XMLRouteFactory_3X (const XMLNode&, int);
1734 void route_processors_changed (RouteProcessorChange);
1736 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1737 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1738 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1739 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1741 /* track numbering */
1743 void reassign_track_numbers ();
1744 uint32_t _track_number_decimals;
1746 /* solo/mute/notifications */
1748 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1749 void route_mute_changed ();
1750 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1751 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1753 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1755 void listen_position_changed ();
1756 void solo_control_mode_changed ();
1758 /* REGION MANAGEMENT */
1760 mutable Glib::Threads::Mutex region_lock;
1762 int load_regions (const XMLNode& node);
1763 int load_compounds (const XMLNode& node);
1765 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1766 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1767 void route_group_property_changed (RouteGroup *);
1771 mutable Glib::Threads::Mutex source_lock;
1774 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1777 void reset_write_sources (bool mark_write_complete, bool force = false);
1780 int load_sources (const XMLNode& node);
1781 XMLNode& get_sources_as_xml ();
1783 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1787 void remove_playlist (boost::weak_ptr<Playlist>);
1788 void track_playlist_changed (boost::weak_ptr<Track>);
1789 void playlist_region_added (boost::weak_ptr<Region>);
1790 void playlist_ranges_moved (std::list<Evoral::RangeMove<samplepos_t> > const &);
1791 void playlist_regions_extended (std::list<Evoral::Range<samplepos_t> > const &);
1793 /* CURVES and AUTOMATION LISTS */
1794 std::map<PBD::ID, AutomationList*> automation_lists;
1796 /* DEFAULT FADE CURVES */
1798 float default_fade_steepness;
1799 float default_fade_msecs;
1803 boost::shared_ptr<Auditioner> auditioner;
1804 void set_audition (boost::shared_ptr<Region>);
1805 void non_realtime_set_audition ();
1806 boost::shared_ptr<Region> pending_audition_region;
1812 int flatten_one_track (AudioTrack&, samplepos_t start, samplecnt_t cnt);
1814 /* INSERT AND SEND MANAGEMENT */
1816 boost::dynamic_bitset<uint32_t> send_bitset;
1817 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1818 boost::dynamic_bitset<uint32_t> return_bitset;
1819 boost::dynamic_bitset<uint32_t> insert_bitset;
1823 struct space_and_path {
1824 uint32_t blocks; ///< 4kB blocks
1825 bool blocks_unknown; ///< true if blocks is unknown
1830 , blocks_unknown (true)
1834 struct space_and_path_ascending_cmp {
1835 bool operator() (space_and_path a, space_and_path b) {
1836 if (a.blocks_unknown != b.blocks_unknown) {
1837 return !a.blocks_unknown;
1839 return a.blocks > b.blocks;
1843 void setup_raid_path (std::string path);
1845 std::vector<space_and_path> session_dirs;
1846 std::vector<space_and_path>::iterator last_rr_session_dir;
1847 uint32_t _total_free_4k_blocks;
1848 /** If this is true, _total_free_4k_blocks is not definite,
1849 as one or more of the session directories' filesystems
1850 could not report free space.
1852 bool _total_free_4k_blocks_uncertain;
1853 Glib::Threads::Mutex space_lock;
1855 bool no_questions_about_missing_files;
1857 std::string get_best_session_directory_for_new_audio ();
1859 mutable gint _playback_load;
1860 mutable gint _capture_load;
1864 SerializedRCUManager<BundleList> _bundles;
1865 XMLNode* _bundle_xml_node;
1866 int load_bundles (XMLNode const &);
1868 UndoHistory _history;
1869 /** current undo transaction, or 0 */
1870 UndoTransaction* _current_trans;
1871 /** GQuarks to describe the reversible commands that are currently in progress.
1872 * These may be nested, in which case more recently-started commands are toward
1873 * the front of the list.
1875 std::list<GQuark> _current_trans_quarks;
1877 int backend_sync_callback (TransportState, samplepos_t);
1879 void process_rtop (SessionEvent*);
1887 XMLNode& state (bool save_template,
1888 snapshot_t snapshot_type = NormalSave,
1889 bool only_used_assets = false);
1891 XMLNode& get_state ();
1892 int set_state (const XMLNode& node, int version); // not idempotent
1893 XMLNode& get_template ();
1896 typedef std::list<Click*> Clicks;
1899 bool _click_rec_only;
1900 boost::shared_ptr<IO> _click_io;
1901 boost::shared_ptr<Amp> _click_gain;
1903 Sample* click_emphasis_data;
1904 samplecnt_t click_length;
1905 samplecnt_t click_emphasis_length;
1906 mutable Glib::Threads::RWLock click_lock;
1908 static const Sample default_click[];
1909 static const samplecnt_t default_click_length;
1910 static const Sample default_click_emphasis[];
1911 static const samplecnt_t default_click_emphasis_length;
1914 samplepos_t _clicks_cleared;
1915 void setup_click_sounds (int which);
1916 void setup_click_sounds (Sample**, Sample const *, samplecnt_t*, samplecnt_t, std::string const &);
1917 void clear_clicks ();
1918 void click (samplepos_t start, samplecnt_t nframes);
1919 void run_click (samplepos_t start, samplecnt_t nframes);
1920 void add_click (samplepos_t pos, bool emphasis);
1921 samplecnt_t _count_in_samples;
1923 /* range playback */
1925 std::list<AudioRange> current_audio_range;
1927 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1928 void unset_play_range ();
1930 /* temporary hacks to allow selection to be pushed from GUI into backend
1931 Whenever we move the selection object into libardour, these will go away.
1933 Evoral::Range<samplepos_t> _range_selection;
1934 Evoral::Range<samplepos_t> _object_selection;
1936 void unset_preroll_record_trim ();
1938 samplecnt_t _preroll_record_trim_len;
1939 bool _count_in_once;
1944 boost::shared_ptr<Route> _master_out;
1945 boost::shared_ptr<Route> _monitor_out;
1947 void auto_connect_master_bus ();
1949 int find_all_sources (std::string path, std::set<std::string>& result);
1950 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1952 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1953 Glib::Threads::Mutex controllables_lock;
1954 Controllables controllables;
1956 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1958 void reset_native_file_format();
1959 bool first_file_data_format_reset;
1960 bool first_file_header_format_reset;
1962 void config_changed (std::string, bool);
1964 XMLNode& get_control_protocol_state ();
1966 void set_history_depth (uint32_t depth);
1968 static bool _disable_all_loaded_plugins;
1969 static bool _bypass_all_loaded_plugins;
1971 mutable bool have_looped; ///< Used in ::audible_sample(*)
1973 void update_route_record_state ();
1974 gint _have_rec_enabled_track;
1975 gint _have_rec_disabled_track;
1977 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1979 /* realtime "apply to set of routes" operations */
1980 template<typename T> SessionEvent*
1981 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1982 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1983 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1984 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1985 ev->rt_return = after;
1986 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1991 /* specialized version realtime "apply to set of routes" operations */
1992 template<typename T1, typename T2> SessionEvent*
1993 get_rt_event (boost::shared_ptr<RouteList> rl, T1 t1arg, T2 t2arg, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1994 void (Session::*method) (boost::shared_ptr<RouteList>, T1, T2, PBD::Controllable::GroupControlDisposition)) {
1995 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1996 ev->rt_slot = boost::bind (method, this, rl, t1arg, t2arg, group_override);
1997 ev->rt_return = after;
1998 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2003 /* specialized version realtime "apply to set of controls" operations */
2004 SessionEvent* get_rt_event (boost::shared_ptr<ControlList> cl, double arg, PBD::Controllable::GroupControlDisposition group_override) {
2005 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
2006 ev->rt_slot = boost::bind (&Session::rt_set_controls, this, cl, arg, group_override);
2007 ev->rt_return = Session::rt_cleanup;
2008 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
2013 void rt_set_controls (boost::shared_ptr<ControlList>, double val, PBD::Controllable::GroupControlDisposition group_override);
2014 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
2016 void set_session_range_location (samplepos_t, samplepos_t);
2018 void setup_midi_machine_control ();
2020 void step_edit_status_change (bool);
2021 uint32_t _step_editors;
2023 /** true if timecode transmission by the transport is suspended, otherwise false */
2024 mutable gint _suspend_timecode_transmission;
2026 void update_locations_after_tempo_map_change (const Locations::LocationList &);
2028 void start_time_changed (samplepos_t);
2029 void end_time_changed (samplepos_t);
2031 void set_track_monitor_input_status (bool);
2032 samplepos_t compute_stop_limit () const;
2034 boost::shared_ptr<Speakers> _speakers;
2035 void load_nested_sources (const XMLNode& node);
2037 /** The directed graph of routes that is currently being used for audio processing
2038 and solo/mute computations.
2040 GraphEdges _current_route_graph;
2042 void ensure_route_presentation_info_gap (PresentationInfo::order_t, uint32_t gap_size);
2044 friend class ProcessorChangeBlocker;
2045 gint _ignore_route_processor_changes; /* atomic */
2047 MidiClockTicker* midi_clock;
2049 boost::shared_ptr<IO> _ltc_input;
2050 boost::shared_ptr<IO> _ltc_output;
2052 boost::shared_ptr<RTTaskList> _rt_tasklist;
2054 /* Scene Changing */
2055 SceneChanger* _scene_changer;
2057 /* persistent, non-track related MIDI ports */
2058 MidiPortManager* _midi_ports;
2059 MIDI::MachineControl* _mmc;
2062 void setup_click ();
2063 void setup_click_state (const XMLNode*);
2064 void setup_bundles ();
2066 void save_as_bring_callback (uint32_t, uint32_t, std::string);
2068 static const uint32_t session_end_shift;
2070 std::string _template_state_dir;
2072 VCAManager* _vca_manager;
2074 boost::shared_ptr<Route> get_midi_nth_route_by_id (PresentationInfo::order_t n) const;
2076 std::string created_with;
2078 void midi_track_presentation_info_changed (PBD::PropertyChange const &, boost::weak_ptr<MidiTrack>);
2079 void rewire_selected_midi (boost::shared_ptr<MidiTrack>);
2080 void rewire_midi_selection_ports ();
2081 boost::weak_ptr<MidiTrack> current_midi_target;
2083 StripableList _soloSelection; //the items that are soloe'd during a solo-selection operation; need to unsolo after the roll
2085 CoreSelection* _selection;
2087 bool _global_locate_pending;
2091 } // namespace ARDOUR
2093 #endif /* __ardour_session_h__ */