2 Copyright (C) 2000 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_session_h__
21 #define __ardour_session_h__
23 #include "libardour-config.h"
34 #include <boost/dynamic_bitset.hpp>
35 #include <boost/scoped_ptr.hpp>
36 #include <boost/weak_ptr.hpp>
37 #include <boost/utility.hpp>
39 #include <glibmm/threads.h>
43 #include "pbd/error.h"
44 #include "pbd/event_loop.h"
46 #include "pbd/reallocpool.h"
47 #include "pbd/statefuldestructible.h"
48 #include "pbd/signals.h"
51 #include "lua/luastate.h"
53 #include "evoral/Range.hpp"
55 #include "midi++/types.h"
56 #include "midi++/mmc.h"
58 #include "timecode/time.h"
60 #include "ardour/ardour.h"
61 #include "ardour/chan_count.h"
62 #include "ardour/delivery.h"
63 #include "ardour/interthread_info.h"
64 #include "ardour/luascripting.h"
65 #include "ardour/location.h"
66 #include "ardour/monitor_processor.h"
67 #include "ardour/rc_configuration.h"
68 #include "ardour/session_configuration.h"
69 #include "ardour/session_event.h"
70 #include "ardour/interpolation.h"
71 #include "ardour/route.h"
72 #include "ardour/route_graph.h"
78 typedef struct _AEffect AEffect;
88 class ControllableDescriptor;
103 class AudioFileSource;
108 class AutomationList;
121 class MidiClockTicker;
123 class MidiPortManager;
142 class SessionDirectory;
143 class SessionMetadata;
144 class SessionPlaylists;
150 class WindowsVSTPlugin;
152 extern void setup_enum_writer ();
154 class LIBARDOUR_API SessionException: public std::exception {
156 explicit SessionException(const std::string msg) : _message(msg) {}
157 virtual ~SessionException() throw() {}
159 virtual const char* what() const throw() { return _message.c_str(); }
162 std::string _message;
165 /** Ardour Session */
166 class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
175 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
176 the bus profile can be null if no master out bus is required.
179 Session (AudioEngine&,
180 const std::string& fullpath,
181 const std::string& snapshot_name,
182 BusProfile* bus_profile = 0,
183 std::string mix_template = "");
187 static int get_info_from_path (const std::string& xmlpath, float& sample_rate, SampleFormat& data_format);
188 static std::string get_snapshot_from_instant (const std::string& session_dir);
190 /** a monotonic counter used for naming user-visible things uniquely
191 * (curently the sidechain port).
192 * Use sparingly to keep the numbers low, prefer PBD::ID for all
193 * internal, not user-visible IDs */
194 static unsigned int next_name_id ();
196 std::string path() const { return _path; }
197 std::string name() const { return _name; }
198 std::string snap_name() const { return _current_snapshot_name; }
199 std::string raid_path () const;
200 bool path_is_within_session (const std::string&);
202 bool writable() const { return _writable; }
205 bool dirty() const { return _state_of_the_state & Dirty; }
206 void set_deletion_in_progress ();
207 void clear_deletion_in_progress ();
208 bool reconnection_in_progress() const { return _reconnecting_routes_in_progress; }
209 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
210 bool routes_deletion_in_progress() const { return _route_deletion_in_progress; }
211 bool peaks_cleanup_in_progres() const { return _state_of_the_state & PeakCleanup; }
213 PBD::Signal0<void> DirtyChanged;
215 PBD::Signal1<void, bool> RouteAddedOrRemoved;
217 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
219 static PBD::Signal1<void,std::string> Dialog;
221 PBD::Signal0<void> BatchUpdateStart;
222 PBD::Signal0<void> BatchUpdateEnd;
224 int ensure_subdirs ();
226 std::string automation_dir () const; ///< Automation data
227 std::string analysis_dir () const; ///< Analysis data
228 std::string plugins_dir () const; ///< Plugin state
229 std::string externals_dir () const; ///< Links to external files
231 std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
233 bool audio_source_name_is_unique (const std::string& name);
234 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);
235 std::string new_audio_source_path_for_embedded (const std::string& existing_path);
236 std::string new_audio_source_path (const std::string&, uint32_t nchans, uint32_t chan, bool destructive, bool take_required);
237 std::string new_midi_source_path (const std::string&);
238 /** create a new track or bus from a template (XML path)
239 * @param how_many how many tracks or busses to create
240 * @param template_path path to xml template file
241 * @param name name (prefix) of the route to create
242 * @param pd Playlist disposition
243 * @return list of newly created routes
245 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path, const std::string& name, PlaylistDisposition pd = NewPlaylist);
246 RouteList new_route_from_template (uint32_t how_many, XMLNode&, const std::string& name, PlaylistDisposition pd = NewPlaylist);
247 std::vector<std::string> get_paths_for_new_sources (bool allow_replacing, const std::string& import_file_path, uint32_t channels);
249 int bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,std::string)> callback);
251 void process (pframes_t nframes);
253 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
254 BufferSet& get_noinplace_buffers (ChanCount count = ChanCount::ZERO);
255 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
256 BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = true);
257 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
259 bool have_rec_enabled_track () const;
260 bool have_rec_disabled_track () const;
262 bool have_captured() const { return _have_captured; }
264 void refill_all_track_buffers ();
265 Butler* butler() { return _butler; }
266 void butler_transport_work ();
268 void refresh_disk_space ();
270 int load_diskstreams_2X (XMLNode const &, int);
272 int load_routes (const XMLNode&, int);
273 boost::shared_ptr<RouteList> get_routes() const {
274 return routes.reader ();
277 boost::shared_ptr<RouteList> get_tracks() const;
278 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
279 boost::shared_ptr<RouteList> get_routes_with_regions_at (framepos_t const) const;
281 uint32_t nroutes() const { return routes.reader()->size(); }
282 uint32_t ntracks () const;
283 uint32_t nbusses () const;
285 boost::shared_ptr<BundleList> bundles () {
286 return _bundles.reader ();
289 struct LIBARDOUR_API RoutePublicOrderSorter {
290 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
293 void set_order_hint (int32_t order_hint) {_order_hint = order_hint;};
294 void notify_remote_id_change ();
295 void sync_order_keys ();
297 template<class T> void foreach_route (T *obj, void (T::*func)(Route&), bool sort = true);
298 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>), bool sort = true);
299 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg, bool sort = true);
301 static char session_name_is_legal (const std::string&);
302 bool io_name_is_legal (const std::string&);
303 boost::shared_ptr<Route> route_by_name (std::string);
304 boost::shared_ptr<Route> route_by_id (PBD::ID);
305 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
306 boost::shared_ptr<Route> route_by_selected_count (uint32_t cnt);
307 boost::shared_ptr<Track> track_by_diskstream_id (PBD::ID);
308 void routes_using_input_from (const std::string& str, RouteList& rl);
310 bool route_name_unique (std::string) const;
311 bool route_name_internal (std::string) const;
313 uint32_t track_number_decimals () const {
314 return _track_number_decimals;
317 bool get_record_enabled() const {
318 return (record_status () >= Enabled);
321 RecordState record_status() const {
322 return (RecordState) g_atomic_int_get (&_record_status);
325 bool actively_recording () const {
326 return record_status() == Recording;
329 bool record_enabling_legal () const;
330 void maybe_enable_record ();
331 void disable_record (bool rt_context, bool force = false);
332 void step_back_from_record ();
334 void set_all_tracks_record_enabled(bool);
336 void maybe_write_autosave ();
338 /* Emitted when all i/o connections are complete */
340 PBD::Signal0<void> IOConnectionsComplete;
342 /* Timecode status signals */
343 PBD::Signal1<void, bool> MTCSyncStateChanged;
344 PBD::Signal1<void, bool> LTCSyncStateChanged;
346 /* Record status signals */
348 PBD::Signal0<void> RecordStateChanged; /* signals changes in recording state (i.e. are we recording) */
349 /* XXX may 2015: paul says: it isn't clear to me that this has semantics that cannot be inferrred
350 from the previous signal and session state.
352 PBD::Signal0<void> RecordArmStateChanged; /* signals changes in recording arming */
354 /* Emited when session is loaded */
355 PBD::Signal0<void> SessionLoaded;
357 /* Transport mechanism signals */
359 /** Emitted on the following changes in transport state:
360 * - stop (from the butler thread)
361 * - change in whether or not we are looping (from the process thread)
362 * - change in the play range (from the process thread)
363 * - start (from the process thread)
366 PBD::Signal0<void> TransportStateChange;
368 PBD::Signal1<void,framepos_t> PositionChanged; /* sent after any non-sequential motion */
369 PBD::Signal1<void,framepos_t> Xrun;
370 PBD::Signal0<void> TransportLooped;
372 /** emitted when a locate has occurred */
373 PBD::Signal0<void> Located;
375 PBD::Signal1<void,RouteList&> RouteAdded;
376 /** Emitted when a property of one of our route groups changes.
377 * The parameter is the RouteGroup that has changed.
379 PBD::Signal1<void, RouteGroup *> RouteGroupPropertyChanged;
380 /** Emitted when a route is added to one of our route groups.
381 * First parameter is the RouteGroup, second is the route.
383 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteAddedToRouteGroup;
384 /** Emitted when a route is removed from one of our route groups.
385 * First parameter is the RouteGroup, second is the route.
387 PBD::Signal2<void, RouteGroup *, boost::weak_ptr<Route> > RouteRemovedFromRouteGroup;
389 /* Step Editing status changed */
390 PBD::Signal1<void,bool> StepEditStatusChange;
392 /* Timecode state signals */
393 PBD::Signal0<void> MtcOrLtcInputPortChanged;
395 void queue_event (SessionEvent*);
397 void request_roll_at_and_return (framepos_t start, framepos_t return_to);
398 void request_bounded_roll (framepos_t start, framepos_t end);
399 void request_stop (bool abort = false, bool clear_state = false);
400 void request_locate (framepos_t frame, bool with_roll = false);
402 void request_play_loop (bool yn, bool leave_rolling = false);
403 bool get_play_loop () const { return play_loop; }
405 framepos_t last_transport_start () const { return _last_roll_location; }
408 void use_rf_shuttle_speed ();
409 void allow_auto_play (bool yn);
410 void request_transport_speed (double speed, bool as_default = true);
411 void request_transport_speed_nonzero (double, bool as_default = true);
412 void request_overwrite_buffer (Track *);
413 void adjust_playback_buffering();
414 void adjust_capture_buffering();
415 void request_track_speed (Track *, double speed);
416 void request_input_change_handling ();
418 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
419 bool transport_locked () const;
423 framepos_t current_end_frame () const;
424 framepos_t current_start_frame () const;
425 /** "actual" sample rate of session, set by current audioengine rate, pullup/down etc. */
426 framecnt_t frame_rate () const { return _current_frame_rate; }
427 /** "native" sample rate of session, regardless of current audioengine rate, pullup/down etc */
428 framecnt_t nominal_frame_rate () const { return _nominal_frame_rate; }
429 framecnt_t frames_per_hour () const { return _frames_per_hour; }
431 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
432 framecnt_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
434 MIDI::byte get_mtc_timecode_bits() const {
435 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
438 double timecode_frames_per_second() const;
439 bool timecode_drop_frames() const;
443 Locations *locations() { return _locations; }
445 PBD::Signal1<void,Location*> auto_loop_location_changed;
446 PBD::Signal1<void,Location*> auto_punch_location_changed;
447 PBD::Signal0<void> locations_modified;
449 void set_auto_punch_location (Location *);
450 void set_auto_loop_location (Location *);
451 void set_session_extents (framepos_t start, framepos_t end);
452 int location_name(std::string& result, std::string base = std::string(""));
454 pframes_t get_block_size() const { return current_block_size; }
455 framecnt_t worst_output_latency () const { return _worst_output_latency; }
456 framecnt_t worst_input_latency () const { return _worst_input_latency; }
457 framecnt_t worst_track_latency () const { return _worst_track_latency; }
458 framecnt_t worst_playback_latency () const { return _worst_output_latency + _worst_track_latency; }
461 std::string new_parent_folder; /* parent folder where new session folder will be created */
462 std::string new_name; /* name of newly saved session */
463 bool switch_to; /* true if we should be working on newly saved session after save-as; false otherwise */
464 bool include_media; /* true if the newly saved session should contain references to media */
465 bool copy_media; /* true if media files (audio, media, etc) should be copied into newly saved session; false otherwise */
466 bool copy_external; /* true if external media should be consolidated into the newly saved session; false otherwise */
468 std::string final_session_folder_name; /* filled in by * Session::save_as(), provides full path to newly saved session */
470 /* emitted as we make progress. 3 arguments passed to signal
473 * 1: percentage complete measured as a fraction (0-1.0) of
474 * total data copying done.
475 * 2: number of files copied so far
476 * 3: total number of files to copy
478 * Handler should return true for save-as to continue, or false
479 * to stop (and remove all evidence of partial save-as).
481 PBD::Signal3<bool,float,int64_t,int64_t> Progress;
483 /* if save_as() returns non-zero, this string will indicate the reason why.
485 std::string failure_message;
488 int save_as (SaveAs&);
490 * @param snapshot_name name of the session (use an empty string for the current name)
491 * @param pending save a 'recovery', not full state (default: false)
492 * @param switch_to_snapshot switch to given snapshot after saving (default: false)
493 * @param template_only save a session template (default: false)
494 * @return zero on success
496 int save_state (std::string snapshot_name, bool pending = false, bool switch_to_snapshot = false, bool template_only = false);
497 int restore_state (std::string snapshot_name);
498 int save_template (std::string template_name, bool replace_existing = false);
499 int save_history (std::string snapshot_name = "");
500 int restore_history (std::string snapshot_name);
501 void remove_state (std::string snapshot_name);
502 void rename_state (std::string old_name, std::string new_name);
503 void remove_pending_capture_state ();
504 int rename (const std::string&);
505 bool get_nsm_state () const { return _under_nsm_control; }
506 void set_nsm_state (bool state) { _under_nsm_control = state; }
507 bool save_default_options ();
509 PBD::Signal1<void,std::string> StateSaved;
510 PBD::Signal0<void> StateReady;
512 /* emitted when session needs to be saved due to some internal
513 * event or condition (i.e. not in response to a user request).
515 * Only one object should
516 * connect to this signal and take responsibility.
518 * Argument is the snapshot name to use when saving.
520 PBD::Signal1<void,std::string> SaveSessionRequested;
522 /* emitted during a session save to allow other entities to add state, via
523 * extra XML, to the session state
525 PBD::Signal0<void> SessionSaveUnderway;
527 std::vector<std::string> possible_states() const;
528 static std::vector<std::string> possible_states (std::string path);
530 XMLNode& get_state();
531 int set_state(const XMLNode& node, int version); // not idempotent
532 XMLNode& get_template();
534 /// The instant xml file is written to the session directory
535 void add_instant_xml (XMLNode&, bool write_to_config = true);
536 XMLNode* instant_xml (const std::string& str);
538 enum StateOfTheState {
543 InitialConnecting = 0x8,
549 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
551 class StateProtector {
553 StateProtector (Session* s) : _session (s) {
554 g_atomic_int_inc (&s->_suspend_save);
557 if (g_atomic_int_dec_and_test (&_session->_suspend_save)) {
558 while (_session->_save_queued) {
559 _session->_save_queued = false;
560 _session->save_state ("");
568 void add_route_group (RouteGroup *);
569 void remove_route_group (RouteGroup&);
570 void reorder_route_groups (std::list<RouteGroup*>);
572 RouteGroup* route_group_by_name (std::string);
573 RouteGroup& all_route_group() const;
575 PBD::Signal1<void,RouteGroup*> route_group_added;
576 PBD::Signal0<void> route_group_removed;
577 PBD::Signal0<void> route_groups_reordered;
579 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
580 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
585 std::list<RouteGroup*> const & route_groups () const {
586 return _route_groups;
589 /* fundamental operations. duh. */
591 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
594 TrackMode mode = Normal,
595 RouteGroup* route_group = 0,
596 uint32_t how_many = 1,
597 std::string name_template = ""
600 RouteList new_audio_route (
601 int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many, std::string name_template = ""
604 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
605 const ChanCount& input, const ChanCount& output,
606 boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>(),
607 TrackMode mode = Normal,
608 RouteGroup* route_group = 0, uint32_t how_many = 1, std::string name_template = ""
611 RouteList new_midi_route (RouteGroup* route_group, uint32_t how_many, std::string name_template = "", boost::shared_ptr<PluginInfo> instrument = boost::shared_ptr<PluginInfo>());
613 void remove_routes (boost::shared_ptr<RouteList>);
614 void remove_route (boost::shared_ptr<Route>);
616 void resort_routes ();
617 void resort_routes_using (boost::shared_ptr<RouteList>);
619 AudioEngine & engine() { return _engine; }
620 AudioEngine const & engine () const { return _engine; }
622 static std::string default_track_name_pattern (DataType);
626 framepos_t transport_frame () const {return _transport_frame; }
627 framepos_t record_location () const {return _last_record_location; }
628 framepos_t audible_frame () const;
629 framepos_t requested_return_frame() const { return _requested_return_frame; }
630 void set_requested_return_frame(framepos_t return_to);
644 void sync_time_vars();
646 void bbt_time (framepos_t when, Timecode::BBT_Time&);
647 void timecode_to_sample(Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes) const;
648 void sample_to_timecode(framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
649 void timecode_time (Timecode::Time &);
650 void timecode_time (framepos_t when, Timecode::Time&);
651 void timecode_time_subframes (framepos_t when, Timecode::Time&);
653 void timecode_duration (framecnt_t, Timecode::Time&) const;
654 void timecode_duration_string (char *, size_t len, framecnt_t) const;
656 framecnt_t convert_to_frames (AnyTime const & position);
657 framecnt_t any_duration_to_frames (framepos_t position, AnyTime const & duration);
659 static PBD::Signal1<void, framepos_t> StartTimeChanged;
660 static PBD::Signal1<void, framepos_t> EndTimeChanged;
662 void request_sync_source (Slave*);
663 bool synced_to_engine() const { return _slave && config.get_external_sync() && Config->get_sync_source() == Engine; }
664 bool synced_to_mtc () const { return config.get_external_sync() && Config->get_sync_source() == MTC && g_atomic_int_get (const_cast<gint*>(&_mtc_active)); }
665 bool synced_to_ltc () const { return config.get_external_sync() && Config->get_sync_source() == LTC && g_atomic_int_get (const_cast<gint*>(&_ltc_active)); }
667 double transport_speed() const { return _transport_speed; }
668 bool transport_stopped() const { return _transport_speed == 0.0f; }
669 bool transport_rolling() const { return _transport_speed != 0.0f; }
671 bool silent () { return _silent; }
673 TempoMap& tempo_map() { return *_tempo_map; }
674 const TempoMap& tempo_map() const { return *_tempo_map; }
676 unsigned int get_xrun_count () const {return _xrun_count; }
677 void reset_xrun_count () {_xrun_count = 0; }
681 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
683 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
684 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
685 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
687 /* source management */
689 void import_files (ImportStatus&);
690 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
691 std::string build_tmp_convert_name (std::string file);
693 boost::shared_ptr<ExportHandler> get_export_handler ();
694 boost::shared_ptr<ExportStatus> get_export_status ();
696 int start_audio_export (framepos_t position);
698 PBD::Signal1<int, framecnt_t> ProcessExport;
699 static PBD::Signal2<void,std::string, std::string> Exported;
701 void add_source (boost::shared_ptr<Source>);
702 void remove_source (boost::weak_ptr<Source>);
704 void cleanup_regions();
705 bool can_cleanup_peakfiles () const;
706 int cleanup_peakfiles ();
707 int cleanup_sources (CleanupReport&);
708 int cleanup_trash_sources (CleanupReport&);
710 int destroy_sources (std::list<boost::shared_ptr<Source> >);
712 int remove_last_capture ();
714 /** handlers should return 0 for "everything OK", and any other value for
715 * "cannot setup audioengine".
717 static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
719 /** handlers should return -1 for "stop cleanup",
720 0 for "yes, delete this playlist",
721 1 for "no, don't delete this playlist".
723 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
725 /** handlers should return 0 for "ignore the rate mismatch",
726 !0 for "do not use this session"
728 static PBD::Signal2<int, framecnt_t, framecnt_t> AskAboutSampleRateMismatch;
730 /** non interactive message */
731 static PBD::Signal2<void, framecnt_t, framecnt_t> NotifyAboutSampleRateMismatch;
733 /** handlers should return !0 for use pending state, 0 for ignore it.
735 static PBD::Signal0<int> AskAboutPendingState;
737 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (
738 size_t, std::string const &, uint32_t, bool destructive);
740 boost::shared_ptr<MidiSource> create_midi_source_for_session (std::string const &);
741 boost::shared_ptr<MidiSource> create_midi_source_by_stealing_name (boost::shared_ptr<Track>);
743 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
744 boost::shared_ptr<AudioFileSource> audio_source_by_path_and_channel (const std::string&, uint16_t) const;
745 boost::shared_ptr<MidiSource> midi_source_by_path (const std::string&) const;
746 uint32_t count_sources_by_origin (const std::string&);
748 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
750 /* Curves and AutomationLists (TODO when they go away) */
751 void add_automation_list(AutomationList*);
755 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
756 void audition_playlist ();
757 void audition_region (boost::shared_ptr<Region>);
758 void cancel_audition ();
759 bool is_auditioning () const;
761 PBD::Signal1<void,bool> AuditionActive;
764 void register_lua_function (const std::string&, const std::string&, const LuaScriptParamList&);
765 void unregister_lua_function (const std::string& name);
766 std::vector<std::string> registered_lua_functions ();
767 uint32_t registered_lua_function_count () const { return _n_lua_scripts; }
768 void scripts_changed (); // called from lua, updates _n_lua_scripts
770 /* flattening stuff */
772 boost::shared_ptr<Region> write_one_track (Track&, framepos_t start, framepos_t end,
773 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
774 boost::shared_ptr<Processor> endpoint,
775 bool include_endpoint, bool for_export, bool for_freeze);
776 int freeze_all (InterThreadInfo&);
778 /* session-wide solo/mute/rec-enable */
780 bool soloing() const { return _non_soloed_outs_muted; }
781 bool listening() const { return _listen_cnt > 0; }
782 bool solo_isolated() const { return _solo_isolated_cnt > 0; }
784 static const SessionEvent::RTeventCallback rt_cleanup;
786 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
787 void clear_all_solo_state (boost::shared_ptr<RouteList>);
788 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
789 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
790 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
791 void set_record_enabled (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
792 void set_record_safe (boost::shared_ptr<RouteList>, bool yn, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
793 void set_solo_isolated (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
794 void set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, SessionEvent::RTeventCallback after = rt_cleanup, PBD::Controllable::GroupControlDisposition group_override = PBD::Controllable::UseGroup);
795 void set_exclusive_input_active (boost::shared_ptr<RouteList> rt, bool onoff, bool flip_others = false);
797 PBD::Signal1<void,bool> SoloActive;
798 PBD::Signal0<void> SoloChanged;
799 PBD::Signal0<void> IsolatedChanged;
800 PBD::Signal0<void> MonitorChanged;
802 PBD::Signal0<void> session_routes_reconnected;
804 /* monitor/master out */
806 void add_monitor_section ();
807 void reset_monitor_section ();
808 void remove_monitor_section ();
809 bool monitor_active() const { return (_monitor_out && _monitor_out->monitor_control () && _monitor_out->monitor_control ()->monitor_active()); }
811 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
812 boost::shared_ptr<Route> master_out() const { return _master_out; }
814 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p, bool);
815 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
816 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
817 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
818 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
819 void add_internal_send (boost::shared_ptr<Route>, int, boost::shared_ptr<Route>);
820 void add_internal_send (boost::shared_ptr<Route>, boost::shared_ptr<Processor>, boost::shared_ptr<Route>);
822 static void set_disable_all_loaded_plugins (bool yn) {
823 _disable_all_loaded_plugins = yn;
825 static bool get_disable_all_loaded_plugins() {
826 return _disable_all_loaded_plugins;
828 static void set_bypass_all_loaded_plugins (bool yn) {
829 _bypass_all_loaded_plugins = yn;
831 static bool get_bypass_all_loaded_plugins() {
832 return _bypass_all_loaded_plugins;
835 uint32_t next_send_id();
836 uint32_t next_aux_send_id();
837 uint32_t next_return_id();
838 uint32_t next_insert_id();
839 void mark_send_id (uint32_t);
840 void mark_aux_send_id (uint32_t);
841 void mark_return_id (uint32_t);
842 void mark_insert_id (uint32_t);
843 void unmark_send_id (uint32_t);
844 void unmark_aux_send_id (uint32_t);
845 void unmark_return_id (uint32_t);
846 void unmark_insert_id (uint32_t);
848 /* s/w "RAID" management */
850 boost::optional<framecnt_t> available_capture_duration();
854 void add_bundle (boost::shared_ptr<Bundle>, bool emit_signal = true);
855 void remove_bundle (boost::shared_ptr<Bundle>);
856 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
858 PBD::Signal0<void> BundleAddedOrRemoved;
862 /* History (for editors, mixers, UIs etc.) */
864 /** Undo some transactions.
865 * @param n Number of transactions to undo.
867 void undo (uint32_t n) {
871 void redo (uint32_t n) {
875 UndoHistory& history() { return _history; }
877 uint32_t undo_depth() const { return _history.undo_depth(); }
878 uint32_t redo_depth() const { return _history.redo_depth(); }
879 std::string next_undo() const { return _history.next_undo(); }
880 std::string next_redo() const { return _history.next_redo(); }
882 /** begin collecting undo information
884 * This call must always be followed by either
885 * begin_reversible_command() or commit_reversible_command()
887 * @param cmd_name human readable name for the undo operation
889 void begin_reversible_command (const std::string& cmd_name);
890 void begin_reversible_command (GQuark);
891 /** abort an open undo command
892 * This must only be called after begin_reversible_command ()
894 void abort_reversible_command ();
895 /** finalize an undo command and commit pending transactions
897 * This must only be called after begin_reversible_command ()
898 * @param cmd (additional) command to add
900 void commit_reversible_command (Command* cmd = 0);
902 void add_command (Command *const cmd);
904 /** create an StatefulDiffCommand from the given object and add it to the stack.
906 * This function must only be called after begin_reversible_command.
907 * Failing to do so may lead to a crash.
909 * @param sfd the object to diff
910 * @returns the allocated StatefulDiffCommand (already added via add_command)
912 PBD::StatefulDiffCommand* add_stateful_diff_command (boost::shared_ptr<PBD::StatefulDestructible> sfd);
914 /** @return The list of operations that are currently in progress */
915 std::list<GQuark> const & current_operations () {
916 return _current_trans_quarks;
919 bool operation_in_progress (GQuark) const;
921 void add_commands (std::vector<Command*> const & cmds);
923 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
925 // these commands are implemented in libs/ardour/session_command.cc
926 Command* memento_command_factory(XMLNode* n);
927 Command* stateful_diff_command_factory (XMLNode *);
928 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
932 boost::shared_ptr<IO> click_io() { return _click_io; }
933 boost::shared_ptr<Amp> click_gain() { return _click_gain; }
935 /* disk, buffer loads */
937 uint32_t playback_load ();
938 uint32_t capture_load ();
942 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
943 void request_cancel_play_range ();
944 bool get_play_range () const { return _play_range; }
946 void maybe_update_session_range (framepos_t, framepos_t);
948 /* temporary hacks to allow selection to be pushed from GUI into backend.
949 Whenever we move the selection object into libardour, these will go away.
951 void set_range_selection (framepos_t start, framepos_t end);
952 void set_object_selection (framepos_t start, framepos_t end);
953 void clear_range_selection ();
954 void clear_object_selection ();
956 /* buffers for gain and pan */
958 gain_t* gain_automation_buffer () const;
959 gain_t* trim_automation_buffer () const;
960 gain_t* send_gain_automation_buffer () const;
961 pan_t** pan_automation_buffer () const;
963 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
967 static int vst_current_loading_id;
968 static const char* vst_can_do_strings[];
969 static const int vst_can_do_string_count;
971 static intptr_t vst_callback (
980 static PBD::Signal0<void> SendFeedback;
984 boost::shared_ptr<Speakers> get_speakers ();
988 boost::shared_ptr<Processor> processor_by_id (PBD::ID) const;
990 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
991 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
993 void add_controllable (boost::shared_ptr<PBD::Controllable>);
994 void remove_controllable (PBD::Controllable*);
996 boost::shared_ptr<PBD::Controllable> solo_cut_control() const;
998 SessionConfiguration config;
1000 bool exporting () const {
1004 bool bounce_processing() const {
1005 return _bounce_processing_active;
1008 /* this is a private enum, but setup_enum_writer() needs it,
1009 and i can't find a way to give that function
1010 friend access. sigh.
1013 enum PostTransportWork {
1014 PostTransportStop = 0x1,
1015 PostTransportDuration = 0x2,
1016 PostTransportLocate = 0x4,
1017 PostTransportRoll = 0x8,
1018 PostTransportAbort = 0x10,
1019 PostTransportOverWrite = 0x20,
1020 PostTransportSpeed = 0x40,
1021 PostTransportAudition = 0x80,
1022 PostTransportReverse = 0x100,
1023 PostTransportInputChange = 0x200,
1024 PostTransportCurveRealloc = 0x400,
1025 PostTransportClearSubstate = 0x800,
1026 PostTransportAdjustPlaybackBuffering = 0x1000,
1027 PostTransportAdjustCaptureBuffering = 0x2000
1036 SlaveState slave_state() const { return _slave_state; }
1037 Slave* slave() const { return _slave; }
1039 boost::shared_ptr<SessionPlaylists> playlists;
1041 void send_mmc_locate (framepos_t);
1042 void queue_full_time_code () { _send_timecode_update = true; }
1043 void queue_song_position_pointer () { /* currently does nothing */ }
1045 bool step_editing() const { return (_step_editors > 0); }
1047 void request_suspend_timecode_transmission ();
1048 void request_resume_timecode_transmission ();
1049 bool timecode_transmission_suspended () const;
1051 std::vector<std::string> source_search_path(DataType) const;
1052 void ensure_search_path_includes (const std::string& path, DataType type);
1053 void remove_dir_from_search_path (const std::string& path, DataType type);
1055 std::list<std::string> unknown_processors () const;
1057 /** Emitted when a feedback cycle has been detected within Ardour's signal
1058 processing path. Until it is fixed (by the user) some (unspecified)
1059 routes will not be run.
1061 static PBD::Signal0<void> FeedbackDetected;
1063 /** Emitted when a graph sort has successfully completed, which means
1064 that it has no feedback cycles.
1066 static PBD::Signal0<void> SuccessfulGraphSort;
1068 /* handlers can return an integer value:
1069 0: config.set_audio_search_path() or config.set_midi_search_path() was used
1070 to modify the search path and we should try to find it again.
1071 1: quit entire session load
1072 2: as 0, but don't ask about other missing files
1073 3: don't ask about other missing files, and just mark this one missing
1074 -1: just mark this one missing
1075 any other value: as -1
1077 static PBD::Signal3<int,Session*,std::string,DataType> MissingFile;
1079 /** Emitted when the session wants Ardour to quit */
1080 static PBD::Signal0<void> Quit;
1082 /** Emitted when Ardour is asked to load a session in an older session
1083 * format, and makes a backup copy.
1085 static PBD::Signal2<void,std::string,std::string> VersionMismatch;
1087 SceneChanger* scene_changer() const { return _scene_changer; }
1089 /* asynchronous MIDI control ports */
1091 boost::shared_ptr<Port> midi_input_port () const;
1092 boost::shared_ptr<Port> midi_output_port () const;
1093 boost::shared_ptr<Port> mmc_output_port () const;
1094 boost::shared_ptr<Port> mmc_input_port () const;
1095 boost::shared_ptr<Port> scene_input_port () const;
1096 boost::shared_ptr<Port> scene_output_port () const;
1098 /* synchronous MIDI ports used for synchronization */
1100 boost::shared_ptr<MidiPort> midi_clock_output_port () const;
1101 boost::shared_ptr<MidiPort> midi_clock_input_port () const;
1102 boost::shared_ptr<MidiPort> mtc_output_port () const;
1103 boost::shared_ptr<MidiPort> mtc_input_port () const;
1104 boost::shared_ptr<Port> ltc_input_port() const;
1105 boost::shared_ptr<Port> ltc_output_port() const;
1107 boost::shared_ptr<IO> ltc_input_io() { return _ltc_input; }
1108 boost::shared_ptr<IO> ltc_output_io() { return _ltc_output; }
1110 MIDI::MachineControl& mmc() { return *_mmc; }
1112 void reconnect_midi_scene_ports (bool);
1113 void reconnect_mtc_ports ();
1114 void reconnect_mmc_ports (bool);
1116 void reconnect_ltc_input ();
1117 void reconnect_ltc_output ();
1120 friend class AudioEngine;
1121 void set_block_size (pframes_t nframes);
1122 void set_frame_rate (framecnt_t nframes);
1123 #ifdef USE_TRACKS_CODE_FEATURES
1124 void reconnect_existing_routes (bool withLock, bool reconnect_master = true, bool reconnect_inputs = true, bool reconnect_outputs = true);
1129 void schedule_curve_reallocation ();
1130 void update_latency_compensation (bool force = false);
1133 int create (const std::string& mix_template, BusProfile*);
1136 static guint _name_id_counter;
1137 static void init_name_id_counter (guint n);
1138 static unsigned int name_id_counter ();
1141 PendingDeclickIn = 0x1, ///< pending de-click fade-in for start
1142 PendingDeclickOut = 0x2, ///< pending de-click fade-out for stop
1143 StopPendingCapture = 0x4,
1144 PendingLoopDeclickIn = 0x8, ///< pending de-click fade-in at the start of a loop
1145 PendingLoopDeclickOut = 0x10, ///< pending de-click fade-out at the end of a loop
1146 PendingLocate = 0x20,
1149 /* stuff used in process() should be close together to
1153 typedef void (Session::*process_function_type)(pframes_t);
1155 AudioEngine& _engine;
1156 mutable gint processing_prohibited;
1157 process_function_type process_function;
1158 process_function_type last_process_function;
1159 bool _bounce_processing_active;
1160 bool waiting_for_sync_offset;
1161 framecnt_t _base_frame_rate; // sample-rate of the session at creation time, "native" SR
1162 framecnt_t _nominal_frame_rate; // overridden by audioengine setting
1163 framecnt_t _current_frame_rate; // this includes video pullup offset
1164 int transport_sub_state;
1165 mutable gint _record_status;
1166 framepos_t _transport_frame;
1167 Location* _session_range_location; ///< session range, or 0 if there is nothing in the session yet
1171 // varispeed playback
1172 double _transport_speed;
1173 double _default_transport_speed;
1174 double _last_transport_speed;
1175 double _signalled_varispeed;
1176 double _target_transport_speed;
1177 CubicInterpolation interpolation;
1179 bool auto_play_legal;
1180 framepos_t _last_slave_transport_frame;
1181 framecnt_t maximum_output_latency;
1182 framepos_t _requested_return_frame;
1183 pframes_t current_block_size;
1184 framecnt_t _worst_output_latency;
1185 framecnt_t _worst_input_latency;
1186 framecnt_t _worst_track_latency;
1187 bool _have_captured;
1188 bool _non_soloed_outs_muted;
1190 uint32_t _listen_cnt;
1191 uint32_t _solo_isolated_cnt;
1194 bool _under_nsm_control;
1195 unsigned int _xrun_count;
1197 void mtc_status_changed (bool);
1198 PBD::ScopedConnection mtc_status_connection;
1199 void ltc_status_changed (bool);
1200 PBD::ScopedConnection ltc_status_connection;
1202 void initialize_latencies ();
1203 void set_worst_io_latencies ();
1204 void set_worst_playback_latency ();
1205 void set_worst_capture_latency ();
1206 void set_worst_io_latencies_x (IOChange, void *) {
1207 set_worst_io_latencies ();
1209 void post_capture_latency ();
1210 void post_playback_latency ();
1212 void update_latency_compensation_proxy (void* ignored);
1214 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
1216 void process_scrub (pframes_t);
1217 void process_without_events (pframes_t);
1218 void process_with_events (pframes_t);
1219 void process_audition (pframes_t);
1220 int process_export (pframes_t);
1221 int process_export_fw (pframes_t);
1223 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1224 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1225 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1227 static const framecnt_t bounce_chunk_size;
1229 /* slave tracking */
1231 static const int delta_accumulator_size = 25;
1232 int delta_accumulator_cnt;
1233 int32_t delta_accumulator[delta_accumulator_size];
1234 int32_t average_slave_delta;
1236 bool have_first_delta_accumulator;
1238 SlaveState _slave_state;
1241 framepos_t slave_wait_end;
1243 void reset_slave_state ();
1244 bool follow_slave (pframes_t);
1245 void calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta);
1246 void track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t this_delta);
1247 void follow_slave_silently (pframes_t nframes, float slave_speed);
1249 void switch_to_sync_source (SyncSource); /* !RT context */
1250 void drop_sync_source (); /* !RT context */
1251 void use_sync_source (Slave*); /* RT context */
1253 bool post_export_sync;
1254 framepos_t post_export_position;
1257 bool _export_rolling;
1258 framepos_t _export_preroll;
1260 boost::shared_ptr<ExportHandler> export_handler;
1261 boost::shared_ptr<ExportStatus> export_status;
1264 int stop_audio_export ();
1265 void finalize_audio_export ();
1266 void finalize_export_internal (bool stop_freewheel);
1267 bool _pre_export_mmc_enabled;
1269 PBD::ScopedConnection export_freewheel_connection;
1271 void get_track_statistics ();
1272 int process_routes (pframes_t, bool& need_butler);
1273 int silent_process_routes (pframes_t, bool& need_butler);
1275 /** @return 1 if there is a pending declick fade-in,
1276 -1 if there is a pending declick fade-out,
1277 0 if there is no pending declick.
1279 int get_transport_declick_required () {
1280 if (transport_sub_state & PendingDeclickIn) {
1281 transport_sub_state &= ~PendingDeclickIn;
1283 } else if (transport_sub_state & PendingDeclickOut) {
1284 /* XXX: not entirely sure why we don't clear this */
1286 } else if (transport_sub_state & PendingLoopDeclickOut) {
1287 /* Return the declick out first ... */
1288 transport_sub_state &= ~PendingLoopDeclickOut;
1290 } else if (transport_sub_state & PendingLoopDeclickIn) {
1291 /* ... then the declick in on the next call */
1292 transport_sub_state &= ~PendingLoopDeclickIn;
1299 bool maybe_stop (framepos_t limit);
1300 bool maybe_sync_start (pframes_t &);
1302 void check_declick_out ();
1308 /** Number of process frames since the last MTC output (when sending MTC); used to
1309 * know when to send full MTC messages every so often.
1311 pframes_t _pframes_since_last_mtc;
1312 bool session_midi_feedback;
1315 framepos_t last_loopend;
1317 boost::scoped_ptr<SessionDirectory> _session_dir;
1320 void graph_reordered ();
1322 /** current snapshot name, without the .ardour suffix */
1323 void set_snapshot_name (const std::string &);
1324 void save_snapshot_name (const std::string &);
1325 std::string _current_snapshot_name;
1327 XMLTree* state_tree;
1328 bool state_was_pending;
1329 StateOfTheState _state_of_the_state;
1331 friend class StateProtector;
1332 gint _suspend_save; /* atomic */
1333 volatile bool _save_queued;
1334 Glib::Threads::Mutex save_state_lock;
1335 Glib::Threads::Mutex peak_cleanup_lock;
1337 int load_options (const XMLNode&);
1338 int load_state (std::string snapshot_name);
1340 framepos_t _last_roll_location;
1341 /** the session frame time at which we last rolled, located, or changed transport direction */
1342 framepos_t _last_roll_or_reversal_location;
1343 framepos_t _last_record_location;
1345 bool pending_locate_roll;
1346 framepos_t pending_locate_frame;
1347 bool pending_locate_flush;
1349 bool pending_auto_loop;
1351 PBD::ReallocPool _mempool;
1353 Glib::Threads::Mutex lua_lock;
1354 luabridge::LuaRef * _lua_run;
1355 luabridge::LuaRef * _lua_add;
1356 luabridge::LuaRef * _lua_del;
1357 luabridge::LuaRef * _lua_list;
1358 luabridge::LuaRef * _lua_load;
1359 luabridge::LuaRef * _lua_save;
1360 luabridge::LuaRef * _lua_cleanup;
1361 uint32_t _n_lua_scripts;
1364 void try_run_lua (pframes_t);
1368 static const PostTransportWork ProcessCannotProceedMask =
1370 PostTransportInputChange|
1372 PostTransportReverse|
1373 PostTransportCurveRealloc|
1374 PostTransportAudition|
1375 PostTransportLocate|
1377 PostTransportClearSubstate);
1379 gint _post_transport_work; /* accessed only atomic ops */
1380 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
1381 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1382 void add_post_transport_work (PostTransportWork ptw);
1384 void schedule_playback_buffering_adjustment ();
1385 void schedule_capture_buffering_adjustment ();
1387 uint32_t cumulative_rf_motion;
1390 void set_rf_speed (float speed);
1391 void reset_rf_scale (framecnt_t frames_moved);
1393 Locations* _locations;
1394 void location_added (Location*);
1395 void location_removed (Location*);
1396 void locations_changed ();
1397 void _locations_changed (const Locations::LocationList&);
1399 void update_skips (Location*, bool consolidate);
1400 void update_marks (Location* loc);
1401 void consolidate_skips (Location*);
1402 void sync_locations_to_skips ();
1403 void _sync_locations_to_skips ();
1405 PBD::ScopedConnectionList skip_update_connections;
1406 bool _ignore_skips_updates;
1408 PBD::ScopedConnectionList punch_connections;
1409 void auto_punch_start_changed (Location *);
1410 void auto_punch_end_changed (Location *);
1411 void auto_punch_changed (Location *);
1413 PBD::ScopedConnectionList loop_connections;
1414 void auto_loop_changed (Location *);
1415 void auto_loop_declick_range (Location *, framepos_t &, framepos_t &);
1417 int ensure_engine (uint32_t desired_sample_rate, bool);
1418 void pre_engine_init (std::string path);
1419 int post_engine_init ();
1420 int immediately_post_engine ();
1421 void remove_empty_sounds ();
1423 void session_loaded ();
1425 void setup_midi_control ();
1426 int midi_read (MIDI::Port *);
1428 void enable_record ();
1430 void increment_transport_position (framecnt_t val) {
1431 if (max_framepos - val < _transport_frame) {
1432 _transport_frame = max_framepos;
1434 _transport_frame += val;
1438 void decrement_transport_position (framecnt_t val) {
1439 if (val < _transport_frame) {
1440 _transport_frame -= val;
1442 _transport_frame = 0;
1446 void post_transport_motion ();
1447 static void *session_loader_thread (void *arg);
1451 /* Signal Forwarding */
1452 void emit_route_signals ();
1453 void emit_thread_run ();
1454 static void *emit_thread (void *);
1455 void emit_thread_start ();
1456 void emit_thread_terminate ();
1458 pthread_t _rt_emit_thread;
1459 bool _rt_thread_active;
1461 pthread_mutex_t _rt_emit_mutex;
1462 pthread_cond_t _rt_emit_cond;
1463 bool _rt_emit_pending;
1465 /* Auto Connect Thread */
1466 static void *auto_connect_thread (void *);
1467 void auto_connect_thread_run ();
1468 void auto_connect_thread_start ();
1469 void auto_connect_thread_terminate ();
1471 pthread_t _auto_connect_thread;
1472 bool _ac_thread_active;
1473 pthread_mutex_t _auto_connect_mutex;
1474 pthread_cond_t _auto_connect_cond;
1476 struct AutoConnectRequest {
1478 AutoConnectRequest (boost::shared_ptr <Route> r, bool ci,
1479 const ChanCount& is,
1480 const ChanCount& os,
1481 const ChanCount& io,
1482 const ChanCount& oo)
1483 : route (boost::weak_ptr<Route> (r))
1484 , connect_inputs (ci)
1488 , output_offset (oo)
1491 boost::weak_ptr <Route> route;
1492 bool connect_inputs;
1493 ChanCount input_start;
1494 ChanCount output_start;
1495 ChanCount input_offset;
1496 ChanCount output_offset;
1499 typedef std::queue<AutoConnectRequest> AutoConnectQueue;
1500 Glib::Threads::Mutex _auto_connect_queue_lock;
1501 AutoConnectQueue _auto_connect_queue;
1503 void auto_connect (const AutoConnectRequest&);
1505 /* SessionEventManager interface */
1507 void process_event (SessionEvent*);
1508 void set_next_event ();
1509 void cleanup_event (SessionEvent*,int);
1511 /* MIDI Machine Control */
1514 void spp_continue ();
1517 void mmc_deferred_play (MIDI::MachineControl &);
1518 void mmc_stop (MIDI::MachineControl &);
1519 void mmc_step (MIDI::MachineControl &, int);
1520 void mmc_pause (MIDI::MachineControl &);
1521 void mmc_record_pause (MIDI::MachineControl &);
1522 void mmc_record_strobe (MIDI::MachineControl &);
1523 void mmc_record_exit (MIDI::MachineControl &);
1524 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1525 void mmc_fast_forward (MIDI::MachineControl &);
1526 void mmc_rewind (MIDI::MachineControl &);
1527 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1528 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1529 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1531 struct timeval last_mmc_step;
1534 typedef boost::function<bool()> MidiTimeoutCallback;
1535 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1537 MidiTimeoutList midi_timeouts;
1538 bool mmc_step_timeout ();
1539 void send_immediate_mmc (MIDI::MachineControlCommand);
1541 MIDI::byte mtc_msg[16];
1542 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1543 MIDI::byte midi_msg[16];
1544 double outbound_mtc_timecode_frame;
1545 Timecode::Time transmitting_timecode_time;
1546 int next_quarter_frame_to_send;
1548 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1549 framecnt_t _frames_per_hour;
1550 framecnt_t _timecode_frames_per_hour;
1552 /* cache the most-recently requested time conversions. This helps when we
1553 * have multiple clocks showing the same time (e.g. the transport frame) */
1554 bool last_timecode_valid;
1555 framepos_t last_timecode_when;
1556 Timecode::Time last_timecode;
1558 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1560 int send_midi_time_code_for_cycle (framepos_t, framepos_t, pframes_t nframes);
1562 LTCEncoder* ltc_encoder;
1563 ltcsnd_sample_t* ltc_enc_buf;
1565 Timecode::TimecodeFormat ltc_enc_tcformat;
1566 int32_t ltc_buf_off;
1567 int32_t ltc_buf_len;
1570 int32_t ltc_enc_byte;
1571 framepos_t ltc_enc_pos;
1573 framepos_t ltc_enc_off;
1575 framepos_t ltc_prev_cycle;
1577 framepos_t ltc_timecode_offset;
1578 bool ltc_timecode_negative_offset;
1580 LatencyRange ltc_out_latency;
1582 void ltc_tx_initialize();
1583 void ltc_tx_cleanup();
1584 void ltc_tx_reset();
1585 void ltc_tx_resync_latency();
1586 void ltc_tx_recalculate_position();
1587 void ltc_tx_parse_offset();
1588 void ltc_tx_send_time_code_for_cycle (framepos_t, framepos_t, double, double, pframes_t nframes);
1590 void reset_record_status ();
1592 int no_roll (pframes_t nframes);
1593 int fail_roll (pframes_t nframes);
1595 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1596 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1598 MidiControlUI* midi_control_ui;
1600 int start_midi_thread ();
1602 void set_play_loop (bool yn, double speed);
1603 void unset_play_loop ();
1604 void overwrite_some_buffers (Track *);
1605 void flush_all_inserts ();
1606 int micro_locate (framecnt_t distance);
1607 void locate (framepos_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false, bool with_mmc=true);
1608 void start_locate (framepos_t, bool with_roll, bool with_flush, bool for_loop_enabled=false, bool force=false);
1609 void force_locate (framepos_t frame, bool with_roll = false);
1610 void set_track_speed (Track *, double speed);
1611 void set_transport_speed (double speed, framepos_t destination_frame, bool abort = false, bool clear_state = false, bool as_default = false);
1612 void stop_transport (bool abort = false, bool clear_state = false);
1613 void start_transport ();
1614 void realtime_stop (bool abort, bool clear_state);
1615 void realtime_locate ();
1616 void non_realtime_start_scrub ();
1617 void non_realtime_set_speed ();
1618 void non_realtime_locate ();
1619 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1620 void non_realtime_overwrite (int entry_request_count, bool& finished);
1621 void post_transport ();
1622 void engine_halted ();
1623 void xrun_recovery ();
1624 void set_track_loop (bool);
1625 bool select_playhead_priority_target (framepos_t&);
1626 void follow_playhead_priority ();
1628 /* These are synchronous and so can only be called from within the process
1632 int send_full_time_code (framepos_t, pframes_t nframes);
1633 void send_song_position_pointer (framepos_t);
1635 TempoMap *_tempo_map;
1636 void tempo_map_changed (const PBD::PropertyChange&);
1638 /* edit/mix groups */
1640 int load_route_groups (const XMLNode&, int);
1642 std::list<RouteGroup *> _route_groups;
1643 RouteGroup* _all_route_group;
1647 boost::shared_ptr<Graph> _process_graph;
1649 SerializedRCUManager<RouteList> routes;
1651 void add_routes (RouteList&, bool input_auto_connect, bool output_auto_connect, bool save);
1652 void add_routes_inner (RouteList&, bool input_auto_connect, bool output_auto_connect);
1653 bool _adding_routes_in_progress;
1654 bool _reconnecting_routes_in_progress;
1655 bool _route_deletion_in_progress;
1657 uint32_t destructive_index;
1659 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1660 boost::shared_ptr<Route> XMLRouteFactory_2X (const XMLNode&, int);
1662 void route_processors_changed (RouteProcessorChange);
1664 bool find_route_name (std::string const &, uint32_t& id, std::string& name, bool);
1665 void count_existing_track_channels (ChanCount& in, ChanCount& out);
1666 void auto_connect_route (boost::shared_ptr<Route>, bool, const ChanCount&, const ChanCount&, const ChanCount& io = ChanCount(), const ChanCount& oo = ChanCount());
1667 void midi_output_change_handler (IOChange change, void* /*src*/, boost::weak_ptr<Route> midi_track);
1669 /* track numbering */
1671 void reassign_track_numbers ();
1672 uint32_t _track_number_decimals;
1676 void route_listen_changed (PBD::Controllable::GroupControlDisposition, boost::weak_ptr<Route>);
1677 void route_mute_changed ();
1678 void route_solo_changed (bool self_solo_change, PBD::Controllable::GroupControlDisposition group_override, boost::weak_ptr<Route>);
1679 void route_solo_isolated_changed (boost::weak_ptr<Route>);
1680 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1682 void listen_position_changed ();
1683 void solo_control_mode_changed ();
1685 /* REGION MANAGEMENT */
1687 mutable Glib::Threads::Mutex region_lock;
1689 int load_regions (const XMLNode& node);
1690 int load_compounds (const XMLNode& node);
1692 void route_added_to_route_group (RouteGroup *, boost::weak_ptr<Route>);
1693 void route_removed_from_route_group (RouteGroup *, boost::weak_ptr<Route>);
1694 void route_group_property_changed (RouteGroup *);
1698 mutable Glib::Threads::Mutex source_lock;
1701 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1704 void reset_write_sources (bool mark_write_complete, bool force = false);
1709 int load_sources (const XMLNode& node);
1710 XMLNode& get_sources_as_xml ();
1712 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1716 void remove_playlist (boost::weak_ptr<Playlist>);
1717 void track_playlist_changed (boost::weak_ptr<Track>);
1718 void playlist_region_added (boost::weak_ptr<Region>);
1719 void playlist_ranges_moved (std::list<Evoral::RangeMove<framepos_t> > const &);
1720 void playlist_regions_extended (std::list<Evoral::Range<framepos_t> > const &);
1722 /* CURVES and AUTOMATION LISTS */
1723 std::map<PBD::ID, AutomationList*> automation_lists;
1725 /* DEFAULT FADE CURVES */
1727 float default_fade_steepness;
1728 float default_fade_msecs;
1732 boost::shared_ptr<Auditioner> auditioner;
1733 void set_audition (boost::shared_ptr<Region>);
1734 void non_realtime_set_audition ();
1735 boost::shared_ptr<Region> pending_audition_region;
1741 int flatten_one_track (AudioTrack&, framepos_t start, framecnt_t cnt);
1743 /* INSERT AND SEND MANAGEMENT */
1745 boost::dynamic_bitset<uint32_t> send_bitset;
1746 boost::dynamic_bitset<uint32_t> aux_send_bitset;
1747 boost::dynamic_bitset<uint32_t> return_bitset;
1748 boost::dynamic_bitset<uint32_t> insert_bitset;
1752 struct space_and_path {
1753 uint32_t blocks; ///< 4kB blocks
1754 bool blocks_unknown; ///< true if blocks is unknown
1759 , blocks_unknown (true)
1763 struct space_and_path_ascending_cmp {
1764 bool operator() (space_and_path a, space_and_path b) {
1765 if (a.blocks_unknown != b.blocks_unknown) {
1766 return !a.blocks_unknown;
1768 return a.blocks > b.blocks;
1772 void setup_raid_path (std::string path);
1774 std::vector<space_and_path> session_dirs;
1775 std::vector<space_and_path>::iterator last_rr_session_dir;
1776 uint32_t _total_free_4k_blocks;
1777 /** If this is true, _total_free_4k_blocks is not definite,
1778 as one or more of the session directories' filesystems
1779 could not report free space.
1781 bool _total_free_4k_blocks_uncertain;
1782 Glib::Threads::Mutex space_lock;
1784 bool no_questions_about_missing_files;
1786 std::string get_best_session_directory_for_new_audio ();
1788 mutable gint _playback_load;
1789 mutable gint _capture_load;
1793 SerializedRCUManager<BundleList> _bundles;
1794 XMLNode* _bundle_xml_node;
1795 int load_bundles (XMLNode const &);
1797 UndoHistory _history;
1798 /** current undo transaction, or 0 */
1799 UndoTransaction* _current_trans;
1800 /** GQuarks to describe the reversible commands that are currently in progress.
1801 * These may be nested, in which case more recently-started commands are toward
1802 * the front of the list.
1804 std::list<GQuark> _current_trans_quarks;
1806 int backend_sync_callback (TransportState, framepos_t);
1808 void process_rtop (SessionEvent*);
1810 void update_latency (bool playback);
1812 XMLNode& state(bool);
1815 typedef std::list<Click*> Clicks;
1818 boost::shared_ptr<IO> _click_io;
1819 boost::shared_ptr<Amp> _click_gain;
1821 Sample* click_emphasis_data;
1822 framecnt_t click_length;
1823 framecnt_t click_emphasis_length;
1824 mutable Glib::Threads::RWLock click_lock;
1826 static const Sample default_click[];
1827 static const framecnt_t default_click_length;
1828 static const Sample default_click_emphasis[];
1829 static const framecnt_t default_click_emphasis_length;
1832 framepos_t _clicks_cleared;
1833 void setup_click_sounds (int which);
1834 void setup_click_sounds (Sample**, Sample const *, framecnt_t*, framecnt_t, std::string const &);
1835 void clear_clicks ();
1836 void click (framepos_t start, framecnt_t nframes);
1838 std::vector<Route*> master_outs;
1840 /* range playback */
1842 std::list<AudioRange> current_audio_range;
1844 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1845 void unset_play_range ();
1847 /* temporary hacks to allow selection to be pushed from GUI into backend
1848 Whenever we move the selection object into libardour, these will go away.
1850 Evoral::Range<framepos_t> _range_selection;
1851 Evoral::Range<framepos_t> _object_selection;
1856 boost::shared_ptr<Route> _master_out;
1857 boost::shared_ptr<Route> _monitor_out;
1859 void auto_connect_master_bus ();
1861 /* Windows VST support */
1863 long _windows_vst_callback (
1872 int find_all_sources (std::string path, std::set<std::string>& result);
1873 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1875 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1876 Glib::Threads::Mutex controllables_lock;
1877 Controllables controllables;
1879 boost::shared_ptr<PBD::Controllable> _solo_cut_control;
1881 void reset_native_file_format();
1882 bool first_file_data_format_reset;
1883 bool first_file_header_format_reset;
1885 void config_changed (std::string, bool);
1887 XMLNode& get_control_protocol_state ();
1889 void set_history_depth (uint32_t depth);
1891 static bool _disable_all_loaded_plugins;
1892 static bool _bypass_all_loaded_plugins;
1894 mutable bool have_looped; ///< Used in ::audible_frame(*)
1896 void update_route_record_state ();
1897 gint _have_rec_enabled_track;
1898 gint _have_rec_disabled_track;
1900 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1902 /* realtime "apply to set of routes" operations */
1903 template<typename T> SessionEvent*
1904 get_rt_event (boost::shared_ptr<RouteList> rl, T targ, SessionEvent::RTeventCallback after, PBD::Controllable::GroupControlDisposition group_override,
1905 void (Session::*method) (boost::shared_ptr<RouteList>, T, PBD::Controllable::GroupControlDisposition)) {
1906 SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
1907 ev->rt_slot = boost::bind (method, this, rl, targ, group_override);
1908 ev->rt_return = after;
1909 ev->event_loop = PBD::EventLoop::get_event_loop_for_thread ();
1914 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1915 void rt_clear_all_solo_state (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1916 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition /* ignored*/ );
1917 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1918 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1919 void rt_set_solo_isolated (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1920 void rt_set_record_enabled (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1921 void rt_set_record_safe (boost::shared_ptr<RouteList>, bool yn, PBD::Controllable::GroupControlDisposition group_override);
1922 void rt_set_monitoring (boost::shared_ptr<RouteList>, MonitorChoice, PBD::Controllable::GroupControlDisposition group_override);
1924 /** temporary list of Diskstreams used only during load of 2.X sessions */
1925 std::list<boost::shared_ptr<Diskstream> > _diskstreams_2X;
1927 void set_session_range_location (framepos_t, framepos_t);
1929 void setup_midi_machine_control ();
1931 void step_edit_status_change (bool);
1932 uint32_t _step_editors;
1934 /** true if timecode transmission by the transport is suspended, otherwise false */
1935 mutable gint _suspend_timecode_transmission;
1937 void update_locations_after_tempo_map_change (const Locations::LocationList &);
1939 void start_time_changed (framepos_t);
1940 void end_time_changed (framepos_t);
1942 void set_track_monitor_input_status (bool);
1943 framepos_t compute_stop_limit () const;
1945 boost::shared_ptr<Speakers> _speakers;
1946 void load_nested_sources (const XMLNode& node);
1948 /** The directed graph of routes that is currently being used for audio processing
1949 and solo/mute computations.
1951 GraphEdges _current_route_graph;
1953 uint32_t next_control_id () const;
1954 int32_t _order_hint;
1955 bool ignore_route_processor_changes;
1957 MidiClockTicker* midi_clock;
1959 boost::shared_ptr<IO> _ltc_input;
1960 boost::shared_ptr<IO> _ltc_output;
1962 /* Scene Changing */
1963 SceneChanger* _scene_changer;
1965 /* persistent, non-track related MIDI ports */
1966 MidiPortManager* _midi_ports;
1967 MIDI::MachineControl* _mmc;
1970 void setup_click ();
1971 void setup_click_state (const XMLNode*);
1972 void setup_bundles ();
1974 void save_as_bring_callback (uint32_t, uint32_t, std::string);
1976 static int get_session_info_from_path (XMLTree& state_tree, const std::string& xmlpath);
1977 static const uint32_t session_end_shift;
1979 std::string _template_state_dir;
1983 } // namespace ARDOUR
1985 #endif /* __ardour_session_h__ */