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__
31 #include <boost/dynamic_bitset.hpp>
32 #include <boost/scoped_ptr.hpp>
33 #include <boost/weak_ptr.hpp>
34 #include <boost/utility.hpp>
36 #include <glibmm/thread.h>
38 #include "pbd/error.h"
40 #include "pbd/statefuldestructible.h"
41 #include "pbd/signals.h"
44 #include "midi++/mmc.h"
45 #include "midi++/types.h"
47 #include "ardour/ardour.h"
48 #include "ardour/click.h"
49 #include "ardour/chan_count.h"
50 #include "ardour/rc_configuration.h"
51 #include "ardour/session_configuration.h"
52 #include "ardour/session_event.h"
53 #include "ardour/location.h"
54 #include "ardour/timecode.h"
55 #include "ardour/interpolation.h"
57 #ifdef HAVE_JACK_SESSION
58 #include <jack/session.h>
71 class ControllableDescriptor;
80 class AudioDiskstream;
82 class AudioFileSource;
92 class ControlProtocolInfo;
104 class NamedSelection;
117 class SessionDirectory;
118 class SessionMetadata;
119 class SessionPlaylists;
125 extern void setup_enum_writer ();
127 class Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionList, public SessionEventManager
136 /* a new session might have non-empty mix_template, an existing session should always have an empty one.
137 the bus profile can be null if no master out bus is required.
140 Session (AudioEngine&,
141 const std::string& fullpath,
142 const std::string& snapshot_name,
143 BusProfile* bus_profile = 0,
144 std::string mix_template = "");
148 std::string path() const { return _path; }
149 std::string name() const { return _name; }
150 std::string snap_name() const { return _current_snapshot_name; }
151 std::string raid_path () const;
152 bool path_is_within_session (const std::string&);
154 void set_snap_name ();
156 bool writable() const { return _writable; }
159 bool dirty() const { return _state_of_the_state & Dirty; }
160 void set_deletion_in_progress ();
161 void clear_deletion_in_progress ();
162 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
163 PBD::Signal0<void> DirtyChanged;
165 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
167 static PBD::Signal0<void> AutoBindingOn;
168 static PBD::Signal0<void> AutoBindingOff;
170 static PBD::Signal1<void,std::string> Dialog;
172 std::string sound_dir (bool with_path = true) const;
173 std::string peak_dir () const;
174 std::string dead_sound_dir () const;
175 std::string automation_dir () const;
176 std::string analysis_dir() const;
178 int ensure_subdirs ();
180 Glib::ustring peak_path (Glib::ustring) const;
182 static std::string change_source_path_by_name (std::string oldpath, std::string oldname, std::string newname, bool destructive);
184 std::string peak_path_from_audio_path (std::string) const;
185 std::string new_audio_source_name (const std::string&, uint32_t nchans, uint32_t chan, bool destructive);
186 std::string new_midi_source_name (const std::string&);
187 std::string new_source_path_from_name (DataType type, const std::string&);
188 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path);
190 void process (nframes_t nframes);
192 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
193 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
194 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
196 void add_diskstream (boost::shared_ptr<Diskstream>);
197 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
198 boost::shared_ptr<Diskstream> diskstream_by_name (std::string name);
199 bool have_rec_enabled_diskstream () const;
201 bool have_captured() const { return _have_captured; }
203 void refill_all_diskstream_buffers ();
204 Butler* butler() { return _butler; }
205 void butler_transport_work ();
207 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
208 uint32_t n_diskstreams() const;
210 void refresh_disk_space ();
212 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
214 SerializedRCUManager<DiskstreamList>& diskstream_list() { return diskstreams; }
216 int load_routes (const XMLNode&, int);
217 boost::shared_ptr<RouteList> get_routes() const {
218 return routes.reader ();
221 boost::shared_ptr<RouteList> get_routes_with_internal_returns() const;
223 boost::shared_ptr<RouteList> get_routes_with_regions_at (nframes64_t const) const;
225 uint32_t nroutes() const { return routes.reader()->size(); }
226 uint32_t ntracks () const;
227 uint32_t nbusses () const;
229 boost::shared_ptr<BundleList> bundles () {
230 return _bundles.reader ();
233 struct RoutePublicOrderSorter {
234 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
237 void sync_order_keys (std::string const &);
239 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
240 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
241 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
243 boost::shared_ptr<Route> route_by_name (std::string);
244 boost::shared_ptr<Route> route_by_id (PBD::ID);
245 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
247 bool route_name_unique (std::string) const;
248 bool route_name_internal (std::string) const;
250 bool get_record_enabled() const {
251 return (record_status () >= Enabled);
254 RecordState record_status() const {
255 return (RecordState) g_atomic_int_get (&_record_status);
258 bool actively_recording () {
259 return record_status() == Recording;
262 bool record_enabling_legal () const;
263 void maybe_enable_record ();
264 void disable_record (bool rt_context, bool force = false);
265 void step_back_from_record ();
267 void maybe_write_autosave ();
269 /* Emitted when all i/o connections are complete */
271 PBD::Signal0<void> IOConnectionsComplete;
273 /* Record status signals */
275 PBD::Signal0<void> RecordStateChanged;
277 /* Transport mechanism signals */
279 PBD::Signal0<void> TransportStateChange; /* generic */
280 PBD::Signal1<void,nframes64_t> PositionChanged; /* sent after any non-sequential motion */
281 PBD::Signal0<void> DurationChanged;
282 PBD::Signal1<void,nframes64_t> Xrun;
283 PBD::Signal0<void> TransportLooped;
285 /** emitted when a locate has occurred */
286 PBD::Signal0<void> Located;
288 PBD::Signal1<void,RouteList&> RouteAdded;
289 PBD::Signal0<void> RouteGroupChanged;
291 void queue_event (SessionEvent*);
293 void request_roll_at_and_return (nframes_t start, nframes_t return_to);
294 void request_bounded_roll (nframes_t start, nframes_t end);
295 void request_stop (bool abort = false, bool clear_state = false);
296 void request_locate (nframes_t frame, bool with_roll = false);
298 void request_play_loop (bool yn, bool leave_rolling = false);
299 bool get_play_loop () const { return play_loop; }
301 nframes_t last_transport_start() const { return _last_roll_location; }
302 void goto_end () { request_locate (_session_range_location->end(), false);}
303 void goto_start () { request_locate (_session_range_location->start(), false); }
304 void set_session_start (nframes_t start) { _session_range_location->set_start(start); }
305 void set_session_end (nframes_t end) { _session_range_location->set_end(end); config.set_end_marker_is_free (false); }
306 void use_rf_shuttle_speed ();
307 void allow_auto_play (bool yn);
308 void request_transport_speed (double speed);
309 void request_overwrite_buffer (Diskstream*);
310 void request_diskstream_speed (Diskstream&, double speed);
311 void request_input_change_handling ();
313 bool locate_pending() const { return static_cast<bool>(post_transport_work()&PostTransportLocate); }
314 bool transport_locked () const;
318 nframes_t get_maximum_extent () const;
319 nframes_t current_end_frame() const { return _session_range_location->end(); }
320 nframes_t current_start_frame() const { return _session_range_location->start(); }
321 /// "actual" sample rate of session, set by current audioengine rate, pullup/down etc.
322 nframes_t frame_rate() const { return _current_frame_rate; }
323 /// "native" sample rate of session, regardless of current audioengine rate, pullup/down etc
324 nframes_t nominal_frame_rate() const { return _nominal_frame_rate; }
325 nframes_t frames_per_hour() const { return _frames_per_hour; }
327 double frames_per_timecode_frame() const { return _frames_per_timecode_frame; }
328 nframes_t timecode_frames_per_hour() const { return _timecode_frames_per_hour; }
330 MIDI::byte get_mtc_timecode_bits() const {
331 return mtc_timecode_bits; /* encoding of SMTPE type for MTC */
334 float timecode_frames_per_second() const;
335 bool timecode_drop_frames() const;
339 Locations *locations() { return &_locations; }
341 PBD::Signal1<void,Location*> auto_loop_location_changed;
342 PBD::Signal1<void,Location*> auto_punch_location_changed;
343 PBD::Signal0<void> locations_modified;
345 void set_auto_punch_location (Location *);
346 void set_auto_loop_location (Location *);
347 int location_name(std::string& result, std::string base = std::string(""));
349 void reset_input_monitor_state ();
351 nframes_t get_block_size() const { return current_block_size; }
352 nframes_t worst_output_latency () const { return _worst_output_latency; }
353 nframes_t worst_input_latency () const { return _worst_input_latency; }
354 nframes_t worst_track_latency () const { return _worst_track_latency; }
356 #ifdef HAVE_JACK_SESSION
357 void jack_session_event (jack_session_event_t* event);
359 int save_state (std::string snapshot_name, bool pending = false);
360 int restore_state (std::string snapshot_name);
361 int save_template (std::string template_name);
362 int save_history (std::string snapshot_name = "");
363 int restore_history (std::string snapshot_name);
364 void remove_state (std::string snapshot_name);
365 void rename_state (std::string old_name, std::string new_name);
366 void remove_pending_capture_state ();
368 static int rename_template (std::string old_name, std::string new_name);
369 static int delete_template (std::string name);
371 PBD::Signal1<void,std::string> StateSaved;
372 PBD::Signal0<void> StateReady;
374 std::vector<std::string*>* possible_states() const;
375 static std::vector<std::string*>* possible_states (std::string path);
377 XMLNode& get_state();
378 int set_state(const XMLNode& node, int version); // not idempotent
379 XMLNode& get_template();
381 /// The instant xml file is written to the session directory
382 void add_instant_xml (XMLNode&, bool write_to_config = true);
383 XMLNode* instant_xml (const std::string& str);
385 enum StateOfTheState {
390 InitialConnecting = 0x8,
395 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
397 void add_route_group (RouteGroup *);
398 void remove_route_group (RouteGroup&);
400 RouteGroup *route_group_by_name (std::string);
402 PBD::Signal1<void,RouteGroup*> route_group_added;
403 PBD::Signal0<void> route_group_removed;
405 void foreach_route_group (boost::function<void(RouteGroup*)> f) {
406 for (std::list<RouteGroup *>::iterator i = _route_groups.begin(); i != _route_groups.end(); ++i) {
411 /* fundamental operations. duh. */
413 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
414 int input_channels, int output_channels, TrackMode mode = Normal, RouteGroup* route_group = 0, uint32_t how_many = 1
417 RouteList new_audio_route (bool aux, int input_channels, int output_channels, RouteGroup* route_group, uint32_t how_many);
419 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
420 TrackMode mode = Normal, RouteGroup* route_group = 0, uint32_t how_many = 1
423 void remove_route (boost::shared_ptr<Route>);
424 void resort_routes ();
425 void resort_routes_using (boost::shared_ptr<RouteList>);
427 void set_remote_control_ids();
429 AudioEngine & engine() { return _engine; }
430 AudioEngine const & engine () const { return _engine; }
437 nframes64_t transport_frame () const {return _transport_frame; }
438 nframes64_t audible_frame () const;
439 nframes64_t requested_return_frame() const { return _requested_return_frame; }
453 void sync_time_vars();
455 void bbt_time (nframes_t when, BBT_Time&);
456 void timecode_to_sample(Timecode::Time& timecode, nframes_t& sample, bool use_offset, bool use_subframes) const;
457 void sample_to_timecode(nframes_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes) const;
458 void timecode_time (Timecode::Time &);
459 void timecode_time (nframes_t when, Timecode::Time&);
460 void timecode_time_subframes (nframes_t when, Timecode::Time&);
462 void timecode_duration (nframes_t, Timecode::Time&) const;
463 void timecode_duration_string (char *, nframes_t) const;
465 void set_timecode_offset (nframes_t);
466 nframes_t timecode_offset () const { return _timecode_offset; }
467 void set_timecode_offset_negative (bool);
468 bool timecode_offset_negative () const { return _timecode_offset_negative; }
470 nframes_t convert_to_frames_at (nframes_t position, AnyTime const &);
472 static PBD::Signal0<void> StartTimeChanged;
473 static PBD::Signal0<void> EndTimeChanged;
474 static PBD::Signal0<void> TimecodeOffsetChanged;
476 std::vector<SyncSource> get_available_sync_options() const;
477 void request_sync_source (Slave*);
478 bool synced_to_jack() const { return config.get_external_sync() && config.get_sync_source() == JACK; }
480 double transport_speed() const { return _transport_speed; }
481 bool transport_stopped() const { return _transport_speed == 0.0f; }
482 bool transport_rolling() const { return _transport_speed != 0.0f; }
484 void set_silent (bool yn);
485 bool silent () { return _silent; }
487 int jack_slave_sync (nframes_t);
489 TempoMap& tempo_map() { return *_tempo_map; }
491 /// signals the current transport position in frames, bbt and timecode time (in that order)
492 PBD::Signal3<void,const nframes_t&, const BBT_Time&, const Timecode::Time&> tick;
496 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>) const;
498 std::string path_from_region_name (DataType type, std::string name, std::string identifier);
500 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
501 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
502 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
504 /* source management */
506 void import_audiofiles (ImportStatus&);
507 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
508 std::string build_tmp_convert_name (std::string file);
510 boost::shared_ptr<ExportHandler> get_export_handler ();
511 boost::shared_ptr<ExportStatus> get_export_status ();
513 int start_audio_export (nframes_t position, bool realtime);
515 PBD::Signal1<int,nframes_t> ProcessExport;
516 static PBD::Signal2<void,std::string, std::string> Exported;
518 void add_source (boost::shared_ptr<Source>);
519 void remove_source (boost::weak_ptr<Source>);
521 int cleanup_sources (CleanupReport&);
522 int cleanup_trash_sources (CleanupReport&);
524 int destroy_region (boost::shared_ptr<Region>);
525 int destroy_regions (std::list<boost::shared_ptr<Region> >);
527 int remove_last_capture ();
529 /** handlers should return -1 for "stop cleanup",
530 0 for "yes, delete this playlist",
531 1 for "no, don't delete this playlist".
533 static PBD::Signal1<int,boost::shared_ptr<Playlist> > AskAboutPlaylistDeletion;
535 /** handlers should return 0 for "ignore the rate mismatch",
536 !0 for "do not use this session"
538 static PBD::Signal2<int,nframes_t, nframes_t> AskAboutSampleRateMismatch;
540 /** handlers should return !0 for use pending state, 0 for ignore it.
542 static PBD::Signal0<int> AskAboutPendingState;
544 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
546 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
548 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
549 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
551 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
553 /* named selections */
555 boost::shared_ptr<NamedSelection> named_selection_by_name (std::string name);
556 void add_named_selection (boost::shared_ptr<NamedSelection>);
557 void remove_named_selection (boost::shared_ptr<NamedSelection>);
559 template<class T> void foreach_named_selection (T& obj, void (T::*func)(boost::shared_ptr<NamedSelection>));
560 PBD::Signal0<void> NamedSelectionAdded;
561 PBD::Signal0<void> NamedSelectionRemoved;
563 /* Curves and AutomationLists (TODO when they go away) */
564 void add_automation_list(AutomationList*);
568 float get_default_fade_length () const { return default_fade_msecs; }
569 float get_default_fade_steepness () const { return default_fade_steepness; }
570 void set_default_fade (float steepness, float msecs);
574 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
575 void audition_playlist ();
576 void audition_region (boost::shared_ptr<Region>);
577 void cancel_audition ();
578 bool is_auditioning () const;
580 PBD::Signal1<void,bool> AuditionActive;
582 /* flattening stuff */
584 boost::shared_ptr<Region> write_one_track (AudioTrack&, nframes_t start, nframes_t end,
585 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
586 bool enable_processing = true);
587 int freeze_all (InterThreadInfo&);
589 /* session-wide solo/mute/rec-enable */
591 bool soloing() const { return _non_soloed_outs_muted; }
592 bool listening() const { return _listen_cnt > 0; }
594 static const SessionEvent::RTeventCallback rt_cleanup;
596 void set_solo (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
597 void set_just_one_solo (boost::shared_ptr<Route>, bool, SessionEvent::RTeventCallback after = rt_cleanup);
598 void set_mute (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
599 void set_listen (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
600 void set_record_enable (boost::shared_ptr<RouteList>, bool, SessionEvent::RTeventCallback after = rt_cleanup, bool group_override = false);
602 PBD::Signal1<void,bool> SoloActive;
603 PBD::Signal0<void> SoloChanged;
606 /* control/master out */
608 boost::shared_ptr<Route> monitor_out() const { return _monitor_out; }
609 boost::shared_ptr<Route> master_out() const { return _master_out; }
611 void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p);
612 void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
613 void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
614 void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
615 void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
617 static void set_disable_all_loaded_plugins (bool yn) {
618 _disable_all_loaded_plugins = yn;
620 static bool get_disable_all_loaded_plugins() {
621 return _disable_all_loaded_plugins;
624 uint32_t next_send_id();
625 uint32_t next_return_id();
626 uint32_t next_insert_id();
627 void mark_send_id (uint32_t);
628 void mark_return_id (uint32_t);
629 void mark_insert_id (uint32_t);
630 void unmark_send_id (uint32_t);
631 void unmark_return_id (uint32_t);
632 void unmark_insert_id (uint32_t);
634 /* s/w "RAID" management */
636 nframes_t available_capture_duration();
640 void add_bundle (boost::shared_ptr<Bundle>);
641 void remove_bundle (boost::shared_ptr<Bundle>);
642 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
644 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleAdded;
645 PBD::Signal1<void,boost::shared_ptr<Bundle> > BundleRemoved;
649 void midi_panic(void);
650 int set_mtc_port (std::string port_tag);
651 int set_mmc_port (std::string port_tag);
652 int set_midi_port (std::string port_tag);
653 int set_midi_clock_port (std::string port_tag);
654 MIDI::Port *mtc_port() const { return _mtc_port; }
655 MIDI::Port *mmc_port() const { return _mmc_port; }
656 MIDI::Port *midi_port() const { return _midi_port; }
657 MIDI::Port *midi_clock_port() const { return _midi_clock_port; }
659 PBD::Signal0<void> MTC_PortChanged;
660 PBD::Signal0<void> MMC_PortChanged;
661 PBD::Signal0<void> MIDI_PortChanged;
662 PBD::Signal0<void> MIDIClock_PortChanged;
664 void set_trace_midi_input (bool, MIDI::Port* port = 0);
665 void set_trace_midi_output (bool, MIDI::Port* port = 0);
667 bool get_trace_midi_input(MIDI::Port *port = 0);
668 bool get_trace_midi_output(MIDI::Port *port = 0);
670 void set_mmc_receive_device_id (uint32_t id);
671 void set_mmc_send_device_id (uint32_t id);
675 void start_scrub (nframes_t where);
677 void set_scrub_speed (float);
678 nframes_t scrub_buffer_size() const;
679 PBD::Signal0<void> ScrubReady;
681 /* History (for editors, mixers, UIs etc.) */
683 /** Undo some transactions.
684 * @param n Number of transactions to undo.
686 void undo (uint32_t n) {
690 void redo (uint32_t n) {
694 UndoHistory& history() { return _history; }
696 uint32_t undo_depth() const { return _history.undo_depth(); }
697 uint32_t redo_depth() const { return _history.redo_depth(); }
698 std::string next_undo() const { return _history.next_undo(); }
699 std::string next_redo() const { return _history.next_redo(); }
701 void begin_reversible_command (const std::string& cmd_name);
702 void commit_reversible_command (Command* cmd = 0);
704 UndoTransaction* start_reversible_command (const std::string& cmd_name);
705 void finish_reversible_command (UndoTransaction&);
707 void add_command (Command *const cmd) {
708 assert(!_current_trans.empty ());
709 _current_trans.top()->add_command (cmd);
712 std::map<PBD::ID,PBD::StatefulDestructible*> registry;
714 // these commands are implemented in libs/ardour/session_command.cc
715 Command* memento_command_factory(XMLNode* n);
716 Command* stateful_diff_command_factory (XMLNode *);
717 void register_with_memento_command_factory(PBD::ID, PBD::StatefulDestructible*);
721 boost::shared_ptr<IO> click_io() { return _click_io; }
723 /* disk, buffer loads */
725 uint32_t playback_load ();
726 uint32_t capture_load ();
727 uint32_t playback_load_min ();
728 uint32_t capture_load_min ();
730 void reset_playback_load_min ();
731 void reset_capture_load_min ();
735 void request_play_range (std::list<AudioRange>*, bool leave_rolling = false);
736 bool get_play_range () const { return _play_range; }
738 /* buffers for gain and pan */
740 gain_t* gain_automation_buffer () const;
741 pan_t** pan_automation_buffer () const;
743 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
747 static long vst_callback (AEffect* effect,
754 static PBD::Signal0<void> SendFeedback;
758 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
759 boost::shared_ptr<PBD::Controllable> controllable_by_descriptor (const PBD::ControllableDescriptor&);
761 void add_controllable (boost::shared_ptr<PBD::Controllable>);
762 void remove_controllable (PBD::Controllable*);
764 SessionMetadata & metadata () { return *_metadata; }
766 SessionConfiguration config;
768 bool exporting () const {
772 /* this is a private enum, but setup_enum_writer() needs it,
773 and i can't find a way to give that function
777 enum PostTransportWork {
778 PostTransportStop = 0x1,
779 PostTransportDisableRecord = 0x2,
780 PostTransportPosition = 0x8,
781 PostTransportDidRecord = 0x20,
782 PostTransportDuration = 0x40,
783 PostTransportLocate = 0x80,
784 PostTransportRoll = 0x200,
785 PostTransportAbort = 0x800,
786 PostTransportOverWrite = 0x1000,
787 PostTransportSpeed = 0x2000,
788 PostTransportAudition = 0x4000,
789 PostTransportScrub = 0x8000,
790 PostTransportReverse = 0x10000,
791 PostTransportInputChange = 0x20000,
792 PostTransportCurveRealloc = 0x40000,
793 PostTransportClearSubstate = 0x80000
802 SlaveState slave_state() const { return _slave_state; }
804 boost::shared_ptr<SessionPlaylists> playlists;
807 friend class AudioEngine;
808 void set_block_size (nframes_t nframes);
809 void set_frame_rate (nframes_t nframes);
813 void schedule_curve_reallocation ();
814 void update_latency_compensation (bool, bool);
817 int create (const std::string& mix_template, nframes_t initial_length, BusProfile*);
820 nframes_t compute_initial_length ();
823 PendingDeclickIn = 0x1,
824 PendingDeclickOut = 0x2,
825 StopPendingCapture = 0x4,
826 AutoReturning = 0x10,
827 PendingLocate = 0x20,
828 PendingSetLoop = 0x40
831 /* stuff used in process() should be close together to
835 typedef void (Session::*process_function_type)(nframes_t);
837 AudioEngine& _engine;
838 mutable gint processing_prohibited;
839 process_function_type process_function;
840 process_function_type last_process_function;
841 bool waiting_for_sync_offset;
842 nframes_t _base_frame_rate;
843 nframes_t _current_frame_rate; //this includes video pullup offset
844 nframes_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
845 int transport_sub_state;
846 mutable gint _record_status;
847 volatile nframes64_t _transport_frame;
848 Location* _session_range_location;
852 // varispeed playback
853 volatile double _transport_speed;
854 double _last_transport_speed;
855 double _target_transport_speed;
856 CubicInterpolation interpolation;
858 bool auto_play_legal;
859 nframes64_t _last_slave_transport_frame;
860 nframes_t maximum_output_latency;
861 volatile nframes64_t _requested_return_frame;
862 nframes_t current_block_size;
863 nframes_t _worst_output_latency;
864 nframes_t _worst_input_latency;
865 nframes_t _worst_track_latency;
868 float _meter_falloff;
869 bool _non_soloed_outs_muted;
870 uint32_t _listen_cnt;
874 void set_worst_io_latencies ();
875 void set_worst_io_latencies_x (IOChange, void *) {
876 set_worst_io_latencies ();
879 void update_latency_compensation_proxy (void* ignored);
881 void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
883 void process_scrub (nframes_t);
884 void process_without_events (nframes_t);
885 void process_with_events (nframes_t);
886 void process_audition (nframes_t);
887 void process_export (nframes_t);
888 int process_export_fw (nframes_t);
890 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
891 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
892 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
894 Glib::Mutex process_thread_lock;
895 std::list<ProcessThread*> process_threads;
899 static const int delta_accumulator_size = 25;
900 int delta_accumulator_cnt;
901 long delta_accumulator[delta_accumulator_size];
902 long average_slave_delta;
904 bool have_first_delta_accumulator;
906 SlaveState _slave_state;
907 nframes_t slave_wait_end;
909 void reset_slave_state ();
910 bool follow_slave (nframes_t);
911 void calculate_moving_average_of_slave_delta(int dir, nframes_t this_delta);
912 void track_slave_state(float slave_speed, nframes_t slave_transport_frame, nframes_t this_delta);
913 void follow_slave_silently(nframes_t nframes, float slave_speed);
915 void switch_to_sync_source (SyncSource); /* !RT context */
916 void drop_sync_source (); /* !RT context */
917 void use_sync_source (Slave*); /* RT context */
919 bool post_export_sync;
920 nframes_t post_export_position;
923 bool _export_rolling;
925 boost::shared_ptr<ExportHandler> export_handler;
926 boost::shared_ptr<ExportStatus> export_status;
929 int stop_audio_export ();
930 void finalize_audio_export ();
932 PBD::ScopedConnection export_freewheel_connection;
934 void get_diskstream_statistics ();
935 int process_routes (nframes_t, bool& need_butler);
936 int silent_process_routes (nframes_t, bool& need_butler);
938 bool get_rec_monitors_input () {
939 if (actively_recording()) {
942 if (config.get_auto_input()) {
950 int get_transport_declick_required () {
951 if (transport_sub_state & PendingDeclickIn) {
952 transport_sub_state &= ~PendingDeclickIn;
954 } else if (transport_sub_state & PendingDeclickOut) {
961 bool maybe_stop (nframes_t limit);
962 bool maybe_sync_start (nframes_t&);
964 void check_declick_out ();
966 MIDI::MachineControl* mmc;
967 MIDI::Port* _mmc_port;
968 MIDI::Port* _mtc_port;
969 MIDI::Port* _midi_port;
970 MIDI::Port* _midi_clock_port;
974 bool session_send_mmc;
975 bool session_send_mtc;
976 bool session_midi_feedback;
979 nframes_t last_loopend;
981 boost::scoped_ptr<SessionDirectory> _session_dir;
984 void when_engine_running ();
985 void graph_reordered ();
987 std::string _current_snapshot_name;
990 bool state_was_pending;
991 StateOfTheState _state_of_the_state;
994 int load_options (const XMLNode&);
995 int load_state (std::string snapshot_name);
997 nframes_t _last_roll_location;
998 nframes_t _last_record_location;
1000 bool pending_locate_roll;
1001 nframes_t pending_locate_frame;
1002 bool pending_locate_flush;
1004 bool pending_auto_loop;
1008 #if 0 // these should be here, see comments in their other location above
1009 enum PostTransportWork {
1010 PostTransportStop = 0x1,
1011 PostTransportDisableRecord = 0x2,
1012 PostTransportPosition = 0x8,
1013 PostTransportDidRecord = 0x20,
1014 PostTransportDuration = 0x40,
1015 PostTransportLocate = 0x80,
1016 PostTransportRoll = 0x200,
1017 PostTransportAbort = 0x800,
1018 PostTransportOverWrite = 0x1000,
1019 PostTransportSpeed = 0x2000,
1020 PostTransportAudition = 0x4000,
1021 PostTransportScrub = 0x8000,
1022 PostTransportReverse = 0x10000,
1023 PostTransportInputChange = 0x20000,
1024 PostTransportCurveRealloc = 0x40000,
1025 PostTransportClearSubstate = 0x80000
1028 static const PostTransportWork ProcessCannotProceedMask =
1030 PostTransportInputChange|
1032 PostTransportReverse|
1033 PostTransportCurveRealloc|
1035 PostTransportAudition|
1036 PostTransportLocate|
1038 PostTransportClearSubstate);
1040 gint _post_transport_work; /* accessed only atomic ops */
1041 PostTransportWork post_transport_work() const { return (PostTransportWork) g_atomic_int_get (&_post_transport_work); }
1042 void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
1043 void add_post_transport_work (PostTransportWork ptw);
1045 uint32_t cumulative_rf_motion;
1048 void set_rf_speed (float speed);
1049 void reset_rf_scale (nframes_t frames_moved);
1051 Locations _locations;
1052 void locations_changed ();
1053 void locations_added (Location*);
1054 void handle_locations_changed (Locations::LocationList&);
1056 PBD::ScopedConnectionList punch_connections;
1057 void auto_punch_start_changed (Location *);
1058 void auto_punch_end_changed (Location *);
1059 void auto_punch_changed (Location *);
1061 PBD::ScopedConnectionList loop_connections;
1062 void auto_loop_changed (Location *);
1064 void first_stage_init (std::string path, std::string snapshot_name);
1065 int second_stage_init ();
1066 void find_current_end ();
1067 void remove_empty_sounds ();
1069 void setup_midi_control ();
1070 int midi_read (MIDI::Port *);
1072 void enable_record ();
1074 void increment_transport_position (uint32_t val) {
1075 if (max_frames - val < _transport_frame) {
1076 _transport_frame = max_frames;
1078 _transport_frame += val;
1082 void decrement_transport_position (uint32_t val) {
1083 if (val < _transport_frame) {
1084 _transport_frame -= val;
1086 _transport_frame = 0;
1090 void post_transport_motion ();
1091 static void *session_loader_thread (void *arg);
1095 /* SessionEventManager interface */
1097 void process_event (SessionEvent*);
1098 void set_next_event ();
1099 void cleanup_event (SessionEvent*,int);
1101 /* MIDI Machine Control */
1103 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1105 void spp_start (MIDI::Parser&, nframes_t timestamp);
1106 void spp_continue (MIDI::Parser&, nframes_t timestamp);
1107 void spp_stop (MIDI::Parser&, nframes_t timestamp);
1109 void mmc_deferred_play (MIDI::MachineControl &);
1110 void mmc_stop (MIDI::MachineControl &);
1111 void mmc_step (MIDI::MachineControl &, int);
1112 void mmc_pause (MIDI::MachineControl &);
1113 void mmc_record_pause (MIDI::MachineControl &);
1114 void mmc_record_strobe (MIDI::MachineControl &);
1115 void mmc_record_exit (MIDI::MachineControl &);
1116 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1117 void mmc_fast_forward (MIDI::MachineControl &);
1118 void mmc_rewind (MIDI::MachineControl &);
1119 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1120 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1121 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1123 struct timeval last_mmc_step;
1126 typedef boost::function<bool()> MidiTimeoutCallback;
1127 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1129 MidiTimeoutList midi_timeouts;
1130 bool mmc_step_timeout ();
1132 MIDI::byte mmc_buffer[32];
1133 MIDI::byte mtc_msg[16];
1134 MIDI::byte mtc_timecode_bits; /* encoding of SMTPE type for MTC */
1135 MIDI::byte midi_msg[16];
1136 nframes_t outbound_mtc_timecode_frame;
1137 Timecode::Time transmitting_timecode_time;
1138 int next_quarter_frame_to_send;
1140 double _frames_per_timecode_frame; /* has to be floating point because of drop frame */
1141 nframes_t _frames_per_hour;
1142 nframes_t _timecode_frames_per_hour;
1143 nframes_t _timecode_offset;
1144 bool _timecode_offset_negative;
1146 /* cache the most-recently requested time conversions. This helps when we
1147 * have multiple clocks showing the same time (e.g. the transport frame) */
1148 bool last_timecode_valid;
1149 nframes_t last_timecode_when;
1150 Timecode::Time last_timecode;
1152 bool _send_timecode_update; ///< Flag to send a full frame (Timecode) MTC message this cycle
1154 int send_full_time_code(nframes_t nframes);
1155 int send_midi_time_code_for_cycle(nframes_t nframes);
1157 nframes_t adjust_apparent_position (nframes_t frames);
1159 void reset_record_status ();
1161 int no_roll (nframes_t nframes);
1162 int fail_roll (nframes_t nframes);
1164 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work()); }
1165 bool process_can_proceed() const { return !(post_transport_work() & ProcessCannotProceedMask); }
1167 MidiControlUI* midi_control_ui;
1169 int start_midi_thread ();
1170 void terminate_midi_thread ();
1172 int use_config_midi_ports ();
1174 void set_play_loop (bool yn);
1175 void unset_play_loop ();
1176 void overwrite_some_buffers (Diskstream*);
1177 void flush_all_inserts ();
1178 int micro_locate (nframes_t distance);
1179 void locate (nframes64_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1180 void start_locate (nframes64_t, bool with_roll, bool with_flush, bool with_loop=false, bool force=false);
1181 void force_locate (nframes64_t frame, bool with_roll = false);
1182 void set_diskstream_speed (Diskstream*, double speed);
1183 void set_transport_speed (double speed, bool abort = false, bool clear_state = false);
1184 void stop_transport (bool abort = false, bool clear_state = false);
1185 void start_transport ();
1186 void realtime_stop (bool abort, bool clear_state);
1187 void non_realtime_start_scrub ();
1188 void non_realtime_set_speed ();
1189 void non_realtime_locate ();
1190 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1191 void non_realtime_overwrite (int entry_request_count, bool& finished);
1192 void post_transport ();
1193 void engine_halted ();
1194 void xrun_recovery ();
1196 TempoMap *_tempo_map;
1197 void tempo_map_changed (const PBD::PropertyChange&);
1199 /* edit/mix groups */
1201 int load_route_groups (const XMLNode&, int);
1203 std::list<RouteGroup *> _route_groups;
1207 SerializedRCUManager<DiskstreamList> diskstreams;
1209 int load_diskstreams (const XMLNode&);
1213 SerializedRCUManager<RouteList> routes;
1215 void add_routes (RouteList&, bool save);
1216 uint32_t destructive_index;
1218 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&, int);
1220 void route_processors_changed (RouteProcessorChange);
1222 bool find_route_name (const char* base, uint32_t& id, char* name, size_t name_len);
1223 void count_existing_route_channels (ChanCount& in, ChanCount& out);
1224 void auto_connect_route (boost::shared_ptr<Route> route,
1225 ChanCount& existing_inputs, ChanCount& existing_outputs);
1229 bool solo_update_disabled;
1231 void route_listen_changed (void *src, boost::weak_ptr<Route>);
1232 void route_mute_changed (void *src);
1233 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1234 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1236 void listen_position_changed ();
1237 void solo_control_mode_changed ();
1239 /* REGION MANAGEMENT */
1241 mutable Glib::Mutex region_lock;
1243 int load_regions (const XMLNode& node);
1245 void route_group_changed ();
1249 mutable Glib::Mutex source_lock;
1250 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1255 SourceMap get_sources() { return sources; }
1258 int load_sources (const XMLNode& node);
1259 XMLNode& get_sources_as_xml ();
1261 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1265 void remove_playlist (boost::weak_ptr<Playlist>);
1266 void playlist_length_changed ();
1267 void diskstream_playlist_changed (boost::weak_ptr<Diskstream>);
1269 /* NAMED SELECTIONS */
1271 mutable Glib::Mutex named_selection_lock;
1272 typedef std::set<boost::shared_ptr<NamedSelection> > NamedSelectionList;
1273 NamedSelectionList named_selections;
1275 int load_named_selections (const XMLNode&);
1277 NamedSelection *named_selection_factory (std::string name);
1278 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1280 /* CURVES and AUTOMATION LISTS */
1281 std::map<PBD::ID, AutomationList*> automation_lists;
1283 /* DEFAULT FADE CURVES */
1285 float default_fade_steepness;
1286 float default_fade_msecs;
1290 boost::shared_ptr<Auditioner> auditioner;
1291 void set_audition (boost::shared_ptr<Region>);
1292 void non_realtime_set_audition ();
1293 boost::shared_ptr<Region> pending_audition_region;
1299 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1301 /* INSERT AND SEND MANAGEMENT */
1303 boost::dynamic_bitset<uint32_t> send_bitset;
1304 boost::dynamic_bitset<uint32_t> return_bitset;
1305 boost::dynamic_bitset<uint32_t> insert_bitset;
1309 struct space_and_path {
1310 uint32_t blocks; /* 4kB blocks */
1318 struct space_and_path_ascending_cmp {
1319 bool operator() (space_and_path a, space_and_path b) {
1320 return a.blocks > b.blocks;
1324 void setup_raid_path (std::string path);
1326 std::vector<space_and_path> session_dirs;
1327 std::vector<space_and_path>::iterator last_rr_session_dir;
1328 uint32_t _total_free_4k_blocks;
1329 Glib::Mutex space_lock;
1331 std::string get_best_session_directory_for_new_source ();
1333 mutable gint _playback_load;
1334 mutable gint _capture_load;
1335 mutable gint _playback_load_min;
1336 mutable gint _capture_load_min;
1340 SerializedRCUManager<BundleList> _bundles;
1341 XMLNode* _bundle_xml_node;
1342 int load_bundles (XMLNode const &);
1344 void reverse_diskstream_buffers ();
1346 UndoHistory _history;
1347 std::stack<UndoTransaction*> _current_trans;
1349 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1350 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1351 void reset_jack_connection (jack_client_t* jack);
1352 void process_rtop (SessionEvent*);
1354 XMLNode& state(bool);
1360 boost::shared_ptr<IO> _click_io;
1362 Sample* click_emphasis_data;
1363 nframes_t click_length;
1364 nframes_t click_emphasis_length;
1365 mutable Glib::RWLock click_lock;
1367 static const Sample default_click[];
1368 static const nframes_t default_click_length;
1369 static const Sample default_click_emphasis[];
1370 static const nframes_t default_click_emphasis_length;
1373 void setup_click_sounds (int which);
1374 void clear_clicks ();
1375 void click (nframes_t start, nframes_t nframes);
1377 std::vector<Route*> master_outs;
1379 /* range playback */
1381 std::list<AudioRange> current_audio_range;
1383 void set_play_range (std::list<AudioRange>&, bool leave_rolling);
1384 void unset_play_range ();
1389 boost::shared_ptr<Route> _master_out;
1390 boost::shared_ptr<Route> _monitor_out;
1394 long _vst_callback (VSTPlugin*,
1401 /* number of hardware ports we're using,
1402 based on max (requested,available)
1405 uint32_t n_physical_outputs;
1406 uint32_t n_physical_inputs;
1408 uint32_t n_physical_audio_outputs;
1409 uint32_t n_physical_audio_inputs;
1411 uint32_t n_physical_midi_outputs;
1412 uint32_t n_physical_midi_inputs;
1414 int find_all_sources (std::string path, std::set<std::string>& result);
1415 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1417 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1418 Glib::Mutex controllables_lock;
1419 Controllables controllables;
1421 void reset_native_file_format();
1422 bool first_file_data_format_reset;
1423 bool first_file_header_format_reset;
1425 void config_changed (std::string, bool);
1427 XMLNode& get_control_protocol_state ();
1429 void set_history_depth (uint32_t depth);
1430 void sync_order_keys ();
1432 static bool _disable_all_loaded_plugins;
1434 SessionMetadata * _metadata;
1436 mutable bool have_looped; ///< Used in ::audible_frame(*)
1438 void update_have_rec_enabled_diskstream ();
1439 gint _have_rec_enabled_diskstream;
1441 static int ask_about_playlist_deletion (boost::shared_ptr<Playlist>);
1443 /* realtime "apply to set of routes" operations */
1444 SessionEvent* get_rt_event (boost::shared_ptr<RouteList> rl, bool yn, SessionEvent::RTeventCallback after, bool group_override,
1445 void (Session::*method) (boost::shared_ptr<RouteList>, bool, bool));
1447 void rt_set_solo (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1448 void rt_set_just_one_solo (boost::shared_ptr<RouteList>, bool yn, bool /* ignored*/ );
1449 void rt_set_mute (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1450 void rt_set_listen (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1451 void rt_set_record_enable (boost::shared_ptr<RouteList>, bool yn, bool group_override);
1454 } // namespace ARDOUR
1456 #endif /* __ardour_session_h__ */