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>
38 #include <glibmm/thread.h>
40 #include "pbd/error.h"
43 #include "pbd/statefuldestructible.h"
46 #include "midi++/mmc.h"
47 #include "midi++/types.h"
49 #include "pbd/destructible.h"
50 #include "pbd/stateful.h"
52 #include "ardour/ardour.h"
53 #include "ardour/chan_count.h"
54 #include "ardour/rc_configuration.h"
55 #include "ardour/session_configuration.h"
56 #include "ardour/location.h"
57 #include "ardour/smpte.h"
58 #include "ardour/interpolation.h"
78 class AudioDiskstream;
80 class AudioFileSource;
89 class ControlProtocolInfo;
111 class SessionDirectory;
112 class SessionMetadata;
118 class Session : public PBD::StatefulDestructible, public boost::noncopyable
121 typedef std::pair<boost::weak_ptr<Route>,bool> RouteBooleanState;
122 typedef std::vector<RouteBooleanState> GlobalRouteBooleanState;
123 typedef std::pair<boost::weak_ptr<Route>,MeterPoint> RouteMeterState;
124 typedef std::vector<RouteMeterState> GlobalRouteMeterState;
148 InputConfigurationChange,
152 /* only one of each of these events can be queued at any one time */
167 nframes_t action_frame;
168 nframes_t target_frame;
174 nframes_t target2_frame;
179 std::list<AudioRange> audio_range;
180 std::list<MusicRange> music_range;
182 boost::shared_ptr<Region> region;
184 Event(Type t, Action a, nframes_t when, nframes_t where, double spd, bool yn = false)
187 , action_frame (when)
188 , target_frame (where)
193 void set_ptr (void* p) {
197 bool before (const Event& other) const {
198 return action_frame < other.action_frame;
201 bool after (const Event& other) const {
202 return action_frame > other.action_frame;
205 static bool compare (const Event *e1, const Event *e2) {
206 return e1->before (*e2);
209 void *operator new (size_t ignored) {
210 return pool.alloc ();
213 void operator delete(void *ptr, size_t size) {
217 static const nframes_t Immediate = 0;
220 static MultiAllocSingleReleasePool pool;
223 /* creating from an XML file */
225 Session (AudioEngine&,
226 const std::string& fullpath,
227 const std::string& snapshot_name,
228 std::string mix_template = "");
230 /* creating a new Session */
232 Session (AudioEngine&,
233 std::string fullpath,
234 std::string snapshot_name,
235 AutoConnectOption input_auto_connect,
236 AutoConnectOption output_auto_connect,
237 uint32_t control_out_channels,
238 uint32_t master_out_channels,
239 uint32_t n_physical_in,
240 uint32_t n_physical_out,
241 nframes_t initial_length);
245 std::string path() const { return _path; }
246 std::string name() const { return _name; }
247 std::string snap_name() const { return _current_snapshot_name; }
248 std::string raid_path () const;
250 void set_snap_name ();
254 bool dirty() const { return _state_of_the_state & Dirty; }
255 void set_deletion_in_progress ();
256 void clear_deletion_in_progress ();
257 bool deletion_in_progress() const { return _state_of_the_state & Deletion; }
258 sigc::signal<void> DirtyChanged;
260 const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
262 static sigc::signal<void> AutoBindingOn;
263 static sigc::signal<void> AutoBindingOff;
265 static sigc::signal<void,std::string> Dialog;
267 std::string sound_dir (bool with_path = true) const;
268 std::string peak_dir () const;
269 std::string dead_sound_dir () const;
270 std::string automation_dir () const;
271 std::string analysis_dir() const;
273 int ensure_subdirs ();
275 Glib::ustring peak_path (Glib::ustring) const;
277 static std::string change_source_path_by_name (std::string oldpath, std::string oldname, std::string newname, bool destructive);
279 std::string peak_path_from_audio_path (std::string) const;
280 std::string new_audio_source_name (const std::string&, uint32_t nchans, uint32_t chan, bool destructive);
281 std::string new_midi_source_name (const std::string&);
282 std::string new_source_path_from_name (DataType type, const std::string&);
283 RouteList new_route_from_template (uint32_t how_many, const std::string& template_path);
285 void process (nframes_t nframes);
287 BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
288 BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
289 BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
291 void add_diskstream (boost::shared_ptr<Diskstream>);
292 boost::shared_ptr<Diskstream> diskstream_by_id (const PBD::ID& id);
293 boost::shared_ptr<Diskstream> diskstream_by_name (std::string name);
294 bool have_rec_enabled_diskstream () const;
296 bool have_captured() const { return _have_captured; }
298 void refill_all_diskstream_buffers ();
299 uint32_t audio_diskstream_buffer_size() const { return audio_dstream_buffer_size; }
300 uint32_t midi_diskstream_buffer_size() const { return midi_dstream_buffer_size; }
302 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
303 uint32_t n_diskstreams() const;
305 typedef std::list<boost::shared_ptr<Diskstream> > DiskstreamList;
307 int load_routes (const XMLNode&);
308 boost::shared_ptr<RouteList> get_routes() const {
309 return routes.reader ();
312 uint32_t nroutes() const { return routes.reader()->size(); }
313 uint32_t ntracks () const;
314 uint32_t nbusses () const;
316 boost::shared_ptr<BundleList> bundles () {
317 return _bundles.reader ();
320 struct RoutePublicOrderSorter {
321 bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
324 void sync_order_keys (const char* base);
326 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
327 template<class T> void foreach_route (T *obj, void (T::*func)(boost::shared_ptr<Route>));
328 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
330 boost::shared_ptr<Route> route_by_name (std::string);
331 boost::shared_ptr<Route> route_by_id (PBD::ID);
332 boost::shared_ptr<Route> route_by_remote_id (uint32_t id);
334 bool route_name_unique (std::string) const;
335 bool route_name_internal (std::string) const;
337 bool get_record_enabled() const {
338 return (record_status () >= Enabled);
341 RecordState record_status() const {
342 return (RecordState) g_atomic_int_get (&_record_status);
345 bool actively_recording () {
346 return record_status() == Recording;
349 bool record_enabling_legal () const;
350 void maybe_enable_record ();
351 void disable_record (bool rt_context, bool force = false);
352 void step_back_from_record ();
354 void maybe_write_autosave ();
356 /* Proxy signal for region hidden changes */
358 sigc::signal<void,boost::shared_ptr<Region> > RegionHiddenChange;
360 /* Emitted when all i/o connections are complete */
362 sigc::signal<void> IOConnectionsComplete;
364 /* Record status signals */
366 sigc::signal<void> RecordStateChanged;
368 /* Transport mechanism signals */
370 sigc::signal<void> TransportStateChange; /* generic */
371 sigc::signal<void,nframes_t> PositionChanged; /* sent after any non-sequential motion */
372 sigc::signal<void> DurationChanged;
373 sigc::signal<void,nframes_t> Xrun;
374 sigc::signal<void> TransportLooped;
376 /** emitted when a locate has occurred */
377 sigc::signal<void> Located;
379 sigc::signal<void,RouteList&> RouteAdded;
381 void request_roll_at_and_return (nframes_t start, nframes_t return_to);
382 void request_bounded_roll (nframes_t start, nframes_t end);
383 void request_stop (bool abort = false);
384 void request_locate (nframes_t frame, bool with_roll = false);
386 void request_play_loop (bool yn);
387 bool get_play_loop () const { return play_loop; }
389 nframes_t last_transport_start() const { return _last_roll_location; }
390 void goto_end () { request_locate (end_location->start(), false);}
391 void goto_start () { request_locate (start_location->start(), false); }
392 void set_session_start (nframes_t start) { start_location->set_start(start); }
393 void set_session_end (nframes_t end) { end_location->set_start(end); config.set_end_marker_is_free (false); }
394 void use_rf_shuttle_speed ();
395 void allow_auto_play (bool yn);
396 void request_transport_speed (double speed);
397 void request_overwrite_buffer (Diskstream*);
398 void request_diskstream_speed (Diskstream&, double speed);
399 void request_input_change_handling ();
401 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
402 bool transport_locked () const;
406 int remove_region_from_region_list (boost::shared_ptr<Region>);
408 nframes_t get_maximum_extent () const;
409 nframes_t current_end_frame() const { return end_location->start(); }
410 nframes_t current_start_frame() const { return start_location->start(); }
411 /// "actual" sample rate of session, set by current audioengine rate, pullup/down etc.
412 nframes_t frame_rate() const { return _current_frame_rate; }
413 /// "native" sample rate of session, regardless of current audioengine rate, pullup/down etc
414 nframes_t nominal_frame_rate() const { return _nominal_frame_rate; }
415 nframes_t frames_per_hour() const { return _frames_per_hour; }
417 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
418 nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
420 MIDI::byte get_mtc_smpte_bits() const {
421 return mtc_smpte_bits; /* encoding of SMTPE type for MTC */
424 float smpte_frames_per_second() const;
425 bool smpte_drop_frames() const;
429 Locations *locations() { return &_locations; }
431 sigc::signal<void,Location*> auto_loop_location_changed;
432 sigc::signal<void,Location*> auto_punch_location_changed;
433 sigc::signal<void> locations_modified;
435 void set_auto_punch_location (Location *);
436 void set_auto_loop_location (Location *);
437 int location_name(std::string& result, std::string base = std::string(""));
439 void reset_input_monitor_state ();
441 void add_event (nframes_t action_frame, Event::Type type, nframes_t target_frame = 0);
442 void remove_event (nframes_t frame, Event::Type type);
443 void clear_events (Event::Type type);
445 nframes_t get_block_size() const { return current_block_size; }
446 nframes_t worst_output_latency () const { return _worst_output_latency; }
447 nframes_t worst_input_latency () const { return _worst_input_latency; }
448 nframes_t worst_track_latency () const { return _worst_track_latency; }
450 int save_state (std::string snapshot_name, bool pending = false);
451 int restore_state (std::string snapshot_name);
452 int save_template (std::string template_name);
453 int save_history (std::string snapshot_name = "");
454 int restore_history (std::string snapshot_name);
455 void remove_state (std::string snapshot_name);
456 void rename_state (std::string old_name, std::string new_name);
457 void remove_pending_capture_state ();
459 static int rename_template (std::string old_name, std::string new_name);
460 static int delete_template (std::string name);
462 sigc::signal<void,std::string> StateSaved;
463 sigc::signal<void> StateReady;
465 std::vector<std::string*>* possible_states() const;
466 static std::vector<std::string*>* possible_states (std::string path);
468 XMLNode& get_state();
469 int set_state(const XMLNode& node); // not idempotent
470 XMLNode& get_template();
472 /// The instant xml file is written to the session directory
473 void add_instant_xml (XMLNode&, bool write_to_config = true);
474 XMLNode* instant_xml (const std::string& str);
476 enum StateOfTheState {
481 InitialConnecting = 0x8,
486 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
488 RouteGroup* add_edit_group (std::string);
489 RouteGroup* add_mix_group (std::string);
491 void remove_edit_group (RouteGroup&);
492 void remove_mix_group (RouteGroup&);
494 RouteGroup *mix_group_by_name (std::string);
495 RouteGroup *edit_group_by_name (std::string);
497 sigc::signal<void,RouteGroup*> edit_group_added;
498 sigc::signal<void,RouteGroup*> mix_group_added;
499 sigc::signal<void> edit_group_removed;
500 sigc::signal<void> mix_group_removed;
502 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
503 for (std::list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
508 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
509 for (std::list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
514 /* fundamental operations. duh. */
516 std::list<boost::shared_ptr<AudioTrack> > new_audio_track (
517 int input_channels, int output_channels, TrackMode mode = Normal, uint32_t how_many = 1);
519 RouteList new_audio_route (int input_channels, int output_channels, uint32_t how_many);
521 std::list<boost::shared_ptr<MidiTrack> > new_midi_track (
522 TrackMode mode = Normal, uint32_t how_many = 1);
524 void remove_route (boost::shared_ptr<Route>);
525 void resort_routes ();
526 void resort_routes_using (boost::shared_ptr<RouteList>);
528 void set_remote_control_ids();
530 AudioEngine & engine() { return _engine; }
531 AudioEngine const & engine () const { return _engine; }
538 nframes_t transport_frame () const {return _transport_frame; }
539 nframes_t audible_frame () const;
540 nframes64_t requested_return_frame() const { return _requested_return_frame; }
554 void sync_time_vars();
556 void bbt_time (nframes_t when, BBT_Time&);
557 void smpte_to_sample(SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes) const;
558 void sample_to_smpte(nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes) const;
559 void smpte_time (SMPTE::Time &);
560 void smpte_time (nframes_t when, SMPTE::Time&);
561 void smpte_time_subframes (nframes_t when, SMPTE::Time&);
563 void smpte_duration (nframes_t, SMPTE::Time&) const;
564 void smpte_duration_string (char *, nframes_t) const;
566 void set_smpte_offset (nframes_t);
567 nframes_t smpte_offset () const { return _smpte_offset; }
568 void set_smpte_offset_negative (bool);
569 bool smpte_offset_negative () const { return _smpte_offset_negative; }
571 nframes_t convert_to_frames_at (nframes_t position, AnyTime const &);
573 static sigc::signal<void> StartTimeChanged;
574 static sigc::signal<void> EndTimeChanged;
575 static sigc::signal<void> SMPTEOffsetChanged;
577 void request_slave_source (SlaveSource);
578 bool synced_to_jack() const { return Config->get_slave_source() == JACK; }
580 double transport_speed() const { return _transport_speed; }
581 bool transport_stopped() const { return _transport_speed == 0.0f; }
582 bool transport_rolling() const { return _transport_speed != 0.0f; }
584 void set_silent (bool yn);
585 bool silent () { return _silent; }
587 int jack_slave_sync (nframes_t);
589 TempoMap& tempo_map() { return *_tempo_map; }
591 /// signals the current transport position in frames, bbt and smpte time (in that order)
592 sigc::signal<void, const nframes_t&, const BBT_Time&, const SMPTE::Time&> tick;
596 void add_regions (std::vector<boost::shared_ptr<Region> >&);
598 sigc::signal<void,boost::weak_ptr<Region> > RegionAdded;
599 sigc::signal<void,std::vector<boost::weak_ptr<Region> >& > RegionsAdded;
600 sigc::signal<void,boost::weak_ptr<Region> > RegionRemoved;
602 int region_name (std::string& result, std::string base = std::string(""), bool newlevel = false);
603 std::string new_region_name (std::string);
604 std::string path_from_region_name (DataType type, std::string name, std::string identifier);
606 boost::shared_ptr<Region> find_whole_file_parent (boost::shared_ptr<Region const>);
608 void find_equivalent_playlist_regions (boost::shared_ptr<Region>, std::vector<boost::shared_ptr<Region> >& result);
610 boost::shared_ptr<Region> XMLRegionFactory (const XMLNode&, bool full);
611 boost::shared_ptr<AudioRegion> XMLAudioRegionFactory (const XMLNode&, bool full);
612 boost::shared_ptr<MidiRegion> XMLMidiRegionFactory (const XMLNode&, bool full);
614 template<class T> void foreach_region (T *obj, void (T::*func)(boost::shared_ptr<Region>));
616 /* source management */
618 struct ImportStatus : public InterThreadInfo {
619 std::string doing_what;
624 volatile bool freeze;
625 std::vector<Glib::ustring> paths;
626 bool replace_existing_source;
632 void import_audiofiles (ImportStatus&);
633 bool sample_rate_convert (ImportStatus&, std::string infile, std::string& outfile);
634 std::string build_tmp_convert_name (std::string file);
636 boost::shared_ptr<ExportHandler> get_export_handler ();
637 boost::shared_ptr<ExportStatus> get_export_status ();
639 int start_audio_export (nframes_t position, bool realtime);
641 sigc::signal<int, nframes_t> ProcessExport;
642 sigc::signal<void> ExportReadFinished;
643 static sigc::signal<void, std::string, std::string> Exported;
645 void add_source (boost::shared_ptr<Source>);
646 void remove_source (boost::weak_ptr<Source>);
648 struct cleanup_report {
649 std::vector<std::string> paths;
653 int cleanup_sources (cleanup_report&);
654 int cleanup_trash_sources (cleanup_report&);
656 int destroy_region (boost::shared_ptr<Region>);
657 int destroy_regions (std::list<boost::shared_ptr<Region> >);
659 int remove_last_capture ();
661 /** handlers should return -1 for "stop cleanup",
662 0 for "yes, delete this playlist",
663 1 for "no, don't delete this playlist".
665 sigc::signal<int,boost::shared_ptr<ARDOUR::Playlist> > AskAboutPlaylistDeletion;
667 /** handlers should return 0 for "ignore the rate mismatch",
668 !0 for "do not use this session"
670 static sigc::signal<int,nframes_t, nframes_t> AskAboutSampleRateMismatch;
672 /** handlers should return !0 for use pending state, 0 for ignore it.
674 static sigc::signal<int> AskAboutPendingState;
676 boost::shared_ptr<AudioFileSource> create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
678 boost::shared_ptr<MidiSource> create_midi_source_for_session (ARDOUR::MidiDiskstream&);
680 boost::shared_ptr<Source> source_by_id (const PBD::ID&);
681 boost::shared_ptr<Source> source_by_path_and_channel (const Glib::ustring&, uint16_t);
683 /* playlist management */
685 boost::shared_ptr<Playlist> playlist_by_name (std::string name);
686 void unassigned_playlists (std::list<boost::shared_ptr<Playlist> > & list);
687 void add_playlist (boost::shared_ptr<Playlist>, bool unused = false);
688 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistAdded;
689 sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistRemoved;
691 uint32_t n_playlists() const;
693 template<class T> void foreach_playlist (T *obj, void (T::*func)(boost::shared_ptr<Playlist>));
694 void get_playlists (std::vector<boost::shared_ptr<Playlist> >&);
696 /* named selections */
698 NamedSelection* named_selection_by_name (std::string name);
699 void add_named_selection (NamedSelection *);
700 void remove_named_selection (NamedSelection *);
702 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
703 sigc::signal<void> NamedSelectionAdded;
704 sigc::signal<void> NamedSelectionRemoved;
706 /* Curves and AutomationLists (TODO when they go away) */
707 void add_automation_list(AutomationList*);
711 float get_default_fade_length () const { return default_fade_msecs; }
712 float get_default_fade_steepness () const { return default_fade_steepness; }
713 void set_default_fade (float steepness, float msecs);
717 boost::shared_ptr<Auditioner> the_auditioner() { return auditioner; }
718 void audition_playlist ();
719 void audition_region (boost::shared_ptr<Region>);
720 void cancel_audition ();
721 bool is_auditioning () const;
723 sigc::signal<void,bool> AuditionActive;
725 /* flattening stuff */
727 boost::shared_ptr<Region> write_one_track (AudioTrack&, nframes_t start, nframes_t end,
728 bool overwrite, std::vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot,
729 bool enable_processing = true);
730 int freeze (InterThreadInfo&);
732 /* session-wide solo/mute/rec-enable */
734 bool soloing() const { return _non_soloed_outs_muted; }
736 void set_all_solo (bool);
737 void set_all_mute (bool);
739 sigc::signal<void,bool> SoloActive;
740 sigc::signal<void> SoloChanged;
742 void record_disenable_all ();
743 void record_enable_all ();
745 /* control/master out */
747 boost::shared_ptr<Route> control_out() const { return _control_out; }
748 boost::shared_ptr<Route> master_out() const { return _master_out; }
750 static void set_disable_all_loaded_plugins (bool yn) {
751 _disable_all_loaded_plugins = yn;
753 static bool get_disable_all_loaded_plugins() {
754 return _disable_all_loaded_plugins;
757 uint32_t next_send_id();
758 uint32_t next_return_id();
759 uint32_t next_insert_id();
760 void mark_send_id (uint32_t);
761 void mark_return_id (uint32_t);
762 void mark_insert_id (uint32_t);
764 /* s/w "RAID" management */
766 nframes_t available_capture_duration();
770 void add_bundle (boost::shared_ptr<Bundle>);
771 void remove_bundle (boost::shared_ptr<Bundle>);
772 boost::shared_ptr<Bundle> bundle_by_name (std::string) const;
774 sigc::signal<void,boost::shared_ptr<Bundle> > BundleAdded;
775 sigc::signal<void,boost::shared_ptr<Bundle> > BundleRemoved;
779 void midi_panic(void);
780 int set_mtc_port (std::string port_tag);
781 int set_mmc_port (std::string port_tag);
782 int set_midi_port (std::string port_tag);
783 int set_midi_clock_port (std::string port_tag);
784 MIDI::Port *mtc_port() const { return _mtc_port; }
785 MIDI::Port *mmc_port() const { return _mmc_port; }
786 MIDI::Port *midi_port() const { return _midi_port; }
787 MIDI::Port *midi_clock_port() const { return _midi_clock_port; }
789 sigc::signal<void> MTC_PortChanged;
790 sigc::signal<void> MMC_PortChanged;
791 sigc::signal<void> MIDI_PortChanged;
792 sigc::signal<void> MIDIClock_PortChanged;
794 void set_trace_midi_input (bool, MIDI::Port* port = 0);
795 void set_trace_midi_output (bool, MIDI::Port* port = 0);
797 bool get_trace_midi_input(MIDI::Port *port = 0);
798 bool get_trace_midi_output(MIDI::Port *port = 0);
800 void set_mmc_receive_device_id (uint32_t id);
801 void set_mmc_send_device_id (uint32_t id);
805 void start_scrub (nframes_t where);
807 void set_scrub_speed (float);
808 nframes_t scrub_buffer_size() const;
809 sigc::signal<void> ScrubReady;
811 /* History (for editors, mixers, UIs etc.) */
813 /** Undo some transactions.
814 * @param n Number of transactions to undo.
816 void undo (uint32_t n) {
820 void redo (uint32_t n) {
824 UndoHistory& history() { return _history; }
826 uint32_t undo_depth() const { return _history.undo_depth(); }
827 uint32_t redo_depth() const { return _history.redo_depth(); }
828 std::string next_undo() const { return _history.next_undo(); }
829 std::string next_redo() const { return _history.next_redo(); }
831 void begin_reversible_command (const std::string& cmd_name);
832 void commit_reversible_command (Command* cmd = 0);
834 void add_command (Command *const cmd) {
835 assert(!_current_trans.empty ());
836 _current_trans.top()->add_command (cmd);
839 std::map<PBD::ID, PBD::StatefulThingWithGoingAway*> registry;
841 // these commands are implemented in libs/ardour/session_command.cc
842 Command* memento_command_factory(XMLNode* n);
843 void register_with_memento_command_factory(PBD::ID, PBD::StatefulThingWithGoingAway*);
845 Command* global_state_command_factory (const XMLNode& n);
847 class GlobalRouteStateCommand : public Command
850 GlobalRouteStateCommand (Session&, void*);
851 GlobalRouteStateCommand (Session&, const XMLNode& node);
852 int set_state (const XMLNode&);
853 XMLNode& get_state ();
856 GlobalRouteBooleanState before, after;
862 class GlobalSoloStateCommand : public GlobalRouteStateCommand
865 GlobalSoloStateCommand (Session &, void *src);
866 GlobalSoloStateCommand (Session&, const XMLNode&);
867 void operator()(); //redo
869 XMLNode &get_state();
873 class GlobalMuteStateCommand : public GlobalRouteStateCommand
876 GlobalMuteStateCommand(Session &, void *src);
877 GlobalMuteStateCommand (Session&, const XMLNode&);
878 void operator()(); // redo
880 XMLNode &get_state();
884 class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
887 GlobalRecordEnableStateCommand(Session &, void *src);
888 GlobalRecordEnableStateCommand (Session&, const XMLNode&);
889 void operator()(); // redo
891 XMLNode &get_state();
895 class GlobalMeteringStateCommand : public Command
898 GlobalMeteringStateCommand(Session &, void *src);
899 GlobalMeteringStateCommand (Session&, const XMLNode&);
902 XMLNode &get_state();
903 int set_state (const XMLNode&);
909 GlobalRouteMeterState before;
910 GlobalRouteMeterState after;
915 boost::shared_ptr<IO> click_io() { return _click_io; }
917 /* disk, buffer loads */
919 uint32_t playback_load ();
920 uint32_t capture_load ();
921 uint32_t playback_load_min ();
922 uint32_t capture_load_min ();
924 void reset_playback_load_min ();
925 void reset_capture_load_min ();
927 float read_data_rate () const; // in usec
928 float write_data_rate () const;
932 void set_audio_range (std::list<AudioRange>&);
933 void set_music_range (std::list<MusicRange>&);
935 void request_play_range (bool yn);
936 bool get_play_range () const { return _play_range; }
938 /* buffers for gain and pan */
940 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
941 pan_t** pan_automation_buffer () const { return _pan_automation_buffer; }
943 void ensure_buffer_set (BufferSet& buffers, const ChanCount& howmany);
947 static long vst_callback (AEffect* effect,
954 static sigc::signal<void> SendFeedback;
958 boost::shared_ptr<PBD::Controllable> controllable_by_id (const PBD::ID&);
960 void add_controllable (boost::shared_ptr<PBD::Controllable>);
961 void remove_controllable (PBD::Controllable*);
963 SessionMetadata & metadata () { return *_metadata; }
965 SessionConfiguration config;
968 friend class AudioEngine;
969 void set_block_size (nframes_t nframes);
970 void set_frame_rate (nframes_t nframes);
973 friend class Diskstream;
975 void wait_till_butler_finished();
979 void schedule_curve_reallocation ();
980 void update_latency_compensation (bool, bool);
983 int create (bool& new_session, const std::string& mix_template, nframes_t initial_length);
986 nframes_t compute_initial_length ();
989 PendingDeclickIn = 0x1,
990 PendingDeclickOut = 0x2,
991 StopPendingCapture = 0x4,
992 AutoReturning = 0x10,
993 PendingLocate = 0x20,
994 PendingSetLoop = 0x40
997 /* stuff used in process() should be close together to
1001 typedef void (Session::*process_function_type)(nframes_t);
1003 AudioEngine& _engine;
1004 mutable gint processing_prohibited;
1005 process_function_type process_function;
1006 process_function_type last_process_function;
1007 bool waiting_for_sync_offset;
1008 nframes_t _base_frame_rate;
1009 nframes_t _current_frame_rate; //this includes video pullup offset
1010 nframes_t _nominal_frame_rate; //ignores audioengine setting, "native" SR
1011 int transport_sub_state;
1012 mutable gint _record_status;
1013 volatile nframes_t _transport_frame;
1014 Location* end_location;
1015 Location* start_location;
1018 volatile double _transport_speed;
1019 double _last_transport_speed;
1020 // varispeed playback
1021 double _target_transport_speed;
1022 LinearInterpolation interpolation;
1023 bool auto_play_legal;
1024 nframes_t _last_slave_transport_frame;
1025 nframes_t maximum_output_latency;
1026 volatile nframes64_t _requested_return_frame;
1027 BufferSet* _scratch_buffers;
1028 BufferSet* _silent_buffers;
1029 BufferSet* _mix_buffers;
1030 nframes_t current_block_size;
1031 nframes_t _worst_output_latency;
1032 nframes_t _worst_input_latency;
1033 nframes_t _worst_track_latency;
1034 bool _have_captured;
1036 float _meter_falloff;
1037 bool _non_soloed_outs_muted;
1039 void set_worst_io_latencies ();
1040 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1041 set_worst_io_latencies ();
1044 void update_latency_compensation_proxy (void* ignored);
1046 void ensure_buffers (ChanCount howmany);
1048 void process_scrub (nframes_t);
1049 void process_without_events (nframes_t);
1050 void process_with_events (nframes_t);
1051 void process_audition (nframes_t);
1052 void process_export (nframes_t);
1053 int process_export_fw (nframes_t);
1055 void block_processing() { g_atomic_int_set (&processing_prohibited, 1); }
1056 void unblock_processing() { g_atomic_int_set (&processing_prohibited, 0); }
1057 bool processing_blocked() const { return g_atomic_int_get (&processing_prohibited); }
1059 /* slave tracking */
1061 static const int delta_accumulator_size = 25;
1062 int delta_accumulator_cnt;
1063 long delta_accumulator[delta_accumulator_size];
1064 long average_slave_delta;
1066 bool have_first_delta_accumulator;
1074 SlaveState slave_state;
1075 nframes_t slave_wait_end;
1077 void reset_slave_state ();
1078 bool follow_slave (nframes_t);
1079 void calculate_moving_average_of_slave_delta(int dir, nframes_t this_delta);
1080 void track_slave_state(float slave_speed, nframes_t slave_transport_frame,
1081 nframes_t this_delta, bool starting);
1082 void follow_slave_silently(nframes_t nframes, float slave_speed);
1084 void set_slave_source (SlaveSource);
1086 SlaveSource post_export_slave;
1087 nframes_t post_export_position;
1090 bool _exporting_realtime;
1092 boost::shared_ptr<ExportHandler> export_handler;
1093 boost::shared_ptr<ExportStatus> export_status;
1096 int stop_audio_export ();
1097 void finalize_audio_export ();
1099 sigc::connection export_freewheel_connection;
1101 void prepare_diskstreams ();
1102 void commit_diskstreams (nframes_t, bool& session_requires_butler);
1103 int process_routes (nframes_t);
1104 int silent_process_routes (nframes_t);
1106 bool get_rec_monitors_input () {
1107 if (actively_recording()) {
1110 if (config.get_auto_input()) {
1118 int get_transport_declick_required () {
1119 if (transport_sub_state & PendingDeclickIn) {
1120 transport_sub_state &= ~PendingDeclickIn;
1122 } else if (transport_sub_state & PendingDeclickOut) {
1129 bool maybe_stop (nframes_t limit) {
1130 if ( (_transport_speed > 0.0f && _transport_frame >= limit)
1131 || (_transport_speed < 0.0f && _transport_frame == 0) ) {
1138 bool maybe_sync_start (nframes_t&);
1140 void check_declick_out ();
1142 MIDI::MachineControl* mmc;
1143 MIDI::Port* _mmc_port;
1144 MIDI::Port* _mtc_port;
1145 MIDI::Port* _midi_port;
1146 MIDI::Port* _midi_clock_port;
1149 bool session_send_mmc;
1150 bool session_send_mtc;
1151 bool session_midi_feedback;
1154 nframes_t last_loopend;
1156 boost::scoped_ptr<SessionDirectory> _session_dir;
1158 RingBuffer<Event*> pending_events;
1161 void when_engine_running ();
1162 void graph_reordered ();
1164 std::string _current_snapshot_name;
1166 XMLTree* state_tree;
1167 bool state_was_pending;
1168 StateOfTheState _state_of_the_state;
1171 int load_options (const XMLNode&);
1172 int load_state (std::string snapshot_name);
1174 nframes_t _last_roll_location;
1175 nframes_t _last_record_location;
1177 bool pending_locate_roll;
1178 nframes_t pending_locate_frame;
1179 bool pending_locate_flush;
1181 bool pending_auto_loop;
1183 Sample* butler_mixdown_buffer;
1184 float* butler_gain_buffer;
1185 pthread_t butler_thread;
1186 Glib::Mutex butler_request_lock;
1187 Glib::Cond butler_paused;
1188 bool butler_should_run;
1189 mutable gint butler_should_do_transport_work;
1190 int butler_request_pipe[2];
1192 inline bool transport_work_requested() const {
1193 return g_atomic_int_get(&butler_should_do_transport_work);
1196 struct ButlerRequest {
1205 enum PostTransportWork {
1206 PostTransportStop = 0x1,
1207 PostTransportDisableRecord = 0x2,
1208 PostTransportPosition = 0x8,
1209 PostTransportDidRecord = 0x20,
1210 PostTransportDuration = 0x40,
1211 PostTransportLocate = 0x80,
1212 PostTransportRoll = 0x200,
1213 PostTransportAbort = 0x800,
1214 PostTransportOverWrite = 0x1000,
1215 PostTransportSpeed = 0x2000,
1216 PostTransportAudition = 0x4000,
1217 PostTransportScrub = 0x8000,
1218 PostTransportReverse = 0x10000,
1219 PostTransportInputChange = 0x20000,
1220 PostTransportCurveRealloc = 0x40000
1223 static const PostTransportWork ProcessCannotProceedMask =
1225 PostTransportInputChange|
1227 PostTransportReverse|
1228 PostTransportCurveRealloc|
1230 PostTransportAudition|
1231 PostTransportLocate|
1234 PostTransportWork post_transport_work;
1236 void summon_butler ();
1237 void schedule_butler_transport_work ();
1238 int start_butler_thread ();
1239 void terminate_butler_thread ();
1240 static void *_butler_thread_work (void *arg);
1241 void* butler_thread_work ();
1243 uint32_t cumulative_rf_motion;
1246 void set_rf_speed (float speed);
1247 void reset_rf_scale (nframes_t frames_moved);
1249 Locations _locations;
1250 void locations_changed ();
1251 void locations_added (Location*);
1252 void handle_locations_changed (Locations::LocationList&);
1254 sigc::connection auto_punch_start_changed_connection;
1255 sigc::connection auto_punch_end_changed_connection;
1256 sigc::connection auto_punch_changed_connection;
1257 void auto_punch_start_changed (Location *);
1258 void auto_punch_end_changed (Location *);
1259 void auto_punch_changed (Location *);
1261 sigc::connection auto_loop_start_changed_connection;
1262 sigc::connection auto_loop_end_changed_connection;
1263 sigc::connection auto_loop_changed_connection;
1264 void auto_loop_changed (Location *);
1266 typedef std::list<Event *> Events;
1268 Events immediate_events;
1269 Events::iterator next_event;
1271 /* there can only ever be one of each of these */
1273 Event *auto_loop_event;
1274 Event *punch_out_event;
1275 Event *punch_in_event;
1279 void dump_events () const;
1280 void queue_event (Event *ev);
1281 void merge_event (Event*);
1282 void replace_event (Event::Type, nframes_t action_frame, nframes_t target = 0);
1283 bool _replace_event (Event*);
1284 bool _remove_event (Event *);
1285 void _clear_event_type (Event::Type);
1287 void first_stage_init (std::string path, std::string snapshot_name);
1288 int second_stage_init (bool new_tracks);
1289 void find_current_end ();
1290 void remove_empty_sounds ();
1292 void setup_midi_control ();
1293 int midi_read (MIDI::Port *);
1295 void enable_record ();
1297 void increment_transport_position (uint32_t val) {
1298 if (max_frames - val < _transport_frame) {
1299 _transport_frame = max_frames;
1301 _transport_frame += val;
1305 void decrement_transport_position (uint32_t val) {
1306 if (val < _transport_frame) {
1307 _transport_frame -= val;
1309 _transport_frame = 0;
1313 void post_transport_motion ();
1314 static void *session_loader_thread (void *arg);
1318 void set_next_event ();
1319 void process_event (Event *ev);
1321 /* MIDI Machine Control */
1323 void deliver_mmc (MIDI::MachineControl::Command, nframes_t);
1325 void spp_start (MIDI::Parser&, nframes_t timestamp);
1326 void spp_continue (MIDI::Parser&, nframes_t timestamp);
1327 void spp_stop (MIDI::Parser&, nframes_t timestamp);
1329 void mmc_deferred_play (MIDI::MachineControl &);
1330 void mmc_stop (MIDI::MachineControl &);
1331 void mmc_step (MIDI::MachineControl &, int);
1332 void mmc_pause (MIDI::MachineControl &);
1333 void mmc_record_pause (MIDI::MachineControl &);
1334 void mmc_record_strobe (MIDI::MachineControl &);
1335 void mmc_record_exit (MIDI::MachineControl &);
1336 void mmc_track_record_status (MIDI::MachineControl &, uint32_t track, bool enabled);
1337 void mmc_fast_forward (MIDI::MachineControl &);
1338 void mmc_rewind (MIDI::MachineControl &);
1339 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1340 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1341 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1343 struct timeval last_mmc_step;
1346 typedef sigc::slot<bool> MidiTimeoutCallback;
1347 typedef std::list<MidiTimeoutCallback> MidiTimeoutList;
1349 MidiTimeoutList midi_timeouts;
1350 bool mmc_step_timeout ();
1352 MIDI::byte mmc_buffer[32];
1353 MIDI::byte mtc_msg[16];
1354 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1355 MIDI::byte midi_msg[16];
1356 nframes_t outbound_mtc_smpte_frame;
1357 SMPTE::Time transmitting_smpte_time;
1358 int next_quarter_frame_to_send;
1360 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1361 nframes_t _frames_per_hour;
1362 nframes_t _smpte_frames_per_hour;
1363 nframes_t _smpte_offset;
1364 bool _smpte_offset_negative;
1366 /* cache the most-recently requested time conversions. This helps when we
1367 * have multiple clocks showing the same time (e.g. the transport frame) */
1368 bool last_smpte_valid;
1369 nframes_t last_smpte_when;
1370 SMPTE::Time last_smpte;
1372 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1374 int send_full_time_code(nframes_t nframes);
1375 int send_midi_time_code_for_cycle(nframes_t nframes);
1377 nframes_t adjust_apparent_position (nframes_t frames);
1379 void reset_record_status ();
1381 int no_roll (nframes_t nframes);
1382 int fail_roll (nframes_t nframes);
1384 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1385 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1387 struct MIDIRequest {
1395 Glib::Mutex midi_lock;
1396 pthread_t midi_thread;
1397 int midi_request_pipe[2];
1398 RingBuffer<MIDIRequest*> midi_requests;
1400 int start_midi_thread ();
1401 void terminate_midi_thread ();
1402 void poke_midi_thread ();
1403 static void *_midi_thread_work (void *arg);
1404 void midi_thread_work ();
1405 void change_midi_ports ();
1406 int use_config_midi_ports ();
1408 void set_play_loop (bool yn);
1409 void overwrite_some_buffers (Diskstream*);
1410 void flush_all_inserts ();
1411 int micro_locate (nframes_t distance);
1412 void locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1413 void start_locate (nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1414 void force_locate (nframes_t frame, bool with_roll = false);
1415 void set_diskstream_speed (Diskstream*, double speed);
1416 void set_transport_speed (double speed, bool abort = false);
1417 void stop_transport (bool abort = false);
1418 void start_transport ();
1419 void realtime_stop (bool abort);
1420 void non_realtime_start_scrub ();
1421 void non_realtime_set_speed ();
1422 void non_realtime_locate ();
1423 void non_realtime_stop (bool abort, int entry_request_count, bool& finished);
1424 void non_realtime_overwrite (int entry_request_count, bool& finished);
1425 void butler_transport_work ();
1426 void post_transport ();
1427 void engine_halted ();
1428 void xrun_recovery ();
1430 TempoMap *_tempo_map;
1431 void tempo_map_changed (Change);
1433 /* edit/mix groups */
1435 int load_route_groups (const XMLNode&, bool is_edit);
1436 int load_edit_groups (const XMLNode&);
1437 int load_mix_groups (const XMLNode&);
1440 std::list<RouteGroup *> edit_groups;
1441 std::list<RouteGroup *> mix_groups;
1445 SerializedRCUManager<DiskstreamList> diskstreams;
1447 uint32_t audio_dstream_buffer_size;
1448 uint32_t midi_dstream_buffer_size;
1449 int load_diskstreams (const XMLNode&);
1453 SerializedRCUManager<RouteList> routes;
1455 void add_routes (RouteList&, bool save);
1456 uint32_t destructive_index;
1458 boost::shared_ptr<Route> XMLRouteFactory (const XMLNode&);
1462 bool solo_update_disabled;
1464 void route_mute_changed (void *src);
1465 void route_solo_changed (void *src, boost::weak_ptr<Route>);
1466 void catch_up_on_solo ();
1467 void catch_up_on_solo_mute_override ();
1468 void update_route_solo_state (boost::shared_ptr<RouteList> r = boost::shared_ptr<RouteList>());
1469 void modify_solo_mute (bool, bool);
1470 void strip_portname_for_solo (std::string& portname);
1472 /* REGION MANAGEMENT */
1474 std::map<std::string,uint32_t> region_name_map;
1475 void update_region_name_map (boost::shared_ptr<Region>);
1477 mutable Glib::Mutex region_lock;
1478 typedef std::map<PBD::ID,boost::shared_ptr<Region> > RegionList;
1481 void add_region (boost::shared_ptr<Region>);
1482 void region_changed (Change, boost::weak_ptr<Region>);
1483 void remove_region (boost::weak_ptr<Region>);
1485 int load_regions (const XMLNode& node);
1489 mutable Glib::Mutex source_lock;
1490 typedef std::map<PBD::ID,boost::shared_ptr<Source> > SourceMap;
1495 SourceMap get_sources() { return sources; }
1498 int load_sources (const XMLNode& node);
1499 XMLNode& get_sources_as_xml ();
1501 boost::shared_ptr<Source> XMLSourceFactory (const XMLNode&);
1505 mutable Glib::Mutex playlist_lock;
1506 typedef std::set<boost::shared_ptr<Playlist> > PlaylistList;
1507 PlaylistList playlists;
1508 PlaylistList unused_playlists;
1510 int load_playlists (const XMLNode&);
1511 int load_unused_playlists (const XMLNode&);
1512 void remove_playlist (boost::weak_ptr<Playlist>);
1513 void track_playlist (bool, boost::weak_ptr<Playlist>);
1515 boost::shared_ptr<Playlist> playlist_factory (std::string name);
1516 boost::shared_ptr<Playlist> XMLPlaylistFactory (const XMLNode&);
1518 void playlist_length_changed ();
1519 void diskstream_playlist_changed (boost::shared_ptr<Diskstream>);
1521 /* NAMED SELECTIONS */
1523 mutable Glib::Mutex named_selection_lock;
1524 typedef std::set<NamedSelection *> NamedSelectionList;
1525 NamedSelectionList named_selections;
1527 int load_named_selections (const XMLNode&);
1529 NamedSelection *named_selection_factory (std::string name);
1530 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1532 /* CURVES and AUTOMATION LISTS */
1533 std::map<PBD::ID, AutomationList*> automation_lists;
1535 /* DEFAULT FADE CURVES */
1537 float default_fade_steepness;
1538 float default_fade_msecs;
1542 boost::shared_ptr<Auditioner> auditioner;
1543 void set_audition (boost::shared_ptr<Region>);
1544 void non_realtime_set_audition ();
1545 boost::shared_ptr<Region> pending_audition_region;
1551 int flatten_one_track (AudioTrack&, nframes_t start, nframes_t cnt);
1553 /* INSERT AND SEND MANAGEMENT */
1555 boost::dynamic_bitset<uint32_t> send_bitset;
1556 boost::dynamic_bitset<uint32_t> return_bitset;
1557 boost::dynamic_bitset<uint32_t> insert_bitset;
1559 void add_processor (Processor *);
1560 void remove_processor (Processor *);
1564 struct space_and_path {
1565 uint32_t blocks; /* 4kB blocks */
1573 struct space_and_path_ascending_cmp {
1574 bool operator() (space_and_path a, space_and_path b) {
1575 return a.blocks > b.blocks;
1579 void setup_raid_path (std::string path);
1581 std::vector<space_and_path> session_dirs;
1582 std::vector<space_and_path>::iterator last_rr_session_dir;
1583 uint32_t _total_free_4k_blocks;
1584 Glib::Mutex space_lock;
1586 std::string get_best_session_directory_for_new_source ();
1587 void refresh_disk_space ();
1589 mutable gint _playback_load;
1590 mutable gint _capture_load;
1591 mutable gint _playback_load_min;
1592 mutable gint _capture_load_min;
1596 SerializedRCUManager<BundleList> _bundles;
1597 XMLNode* _bundle_xml_node;
1598 int load_bundles (XMLNode const &);
1600 void reverse_diskstream_buffers ();
1602 UndoHistory _history;
1603 std::stack<UndoTransaction*> _current_trans;
1605 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1606 GlobalRouteMeterState get_global_route_metering ();
1608 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1609 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1611 void set_global_mute (GlobalRouteBooleanState s, void *src);
1612 void set_global_solo (GlobalRouteBooleanState s, void *src);
1613 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1615 void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
1616 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1617 void reset_jack_connection (jack_client_t* jack);
1618 void record_enable_change_all (bool yn);
1620 XMLNode& state(bool);
1630 Click (nframes_t s, nframes_t d, const Sample *b)
1631 : start (s), duration (d), data (b) { offset = 0; }
1633 void *operator new(size_t ignored) {
1634 return pool.alloc ();
1637 void operator delete(void *ptr, size_t size) {
1645 typedef std::list<Click*> Clicks;
1649 boost::shared_ptr<IO> _click_io;
1651 Sample* click_emphasis_data;
1652 nframes_t click_length;
1653 nframes_t click_emphasis_length;
1654 mutable Glib::RWLock click_lock;
1656 static const Sample default_click[];
1657 static const nframes_t default_click_length;
1658 static const Sample default_click_emphasis[];
1659 static const nframes_t default_click_emphasis_length;
1662 void setup_click_sounds (int which);
1663 void clear_clicks ();
1664 void click (nframes_t start, nframes_t nframes);
1666 std::vector<Route*> master_outs;
1668 /* range playback */
1670 std::list<AudioRange> current_audio_range;
1672 void set_play_range (bool yn);
1673 void setup_auto_play ();
1678 boost::shared_ptr<Route> _master_out;
1679 boost::shared_ptr<Route> _control_out;
1681 gain_t* _gain_automation_buffer;
1682 pan_t** _pan_automation_buffer;
1683 void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
1684 uint32_t _npan_buffers;
1688 long _vst_callback (VSTPlugin*,
1695 /* number of hardware ports we're using,
1696 based on max (requested,available)
1699 uint32_t n_physical_outputs;
1700 uint32_t n_physical_inputs;
1702 uint32_t n_physical_audio_outputs;
1703 uint32_t n_physical_audio_inputs;
1705 uint32_t n_physical_midi_outputs;
1706 uint32_t n_physical_midi_inputs;
1708 int find_all_sources (std::string path, std::set<std::string>& result);
1709 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1711 typedef std::set<boost::shared_ptr<PBD::Controllable> > Controllables;
1712 Glib::Mutex controllables_lock;
1713 Controllables controllables;
1715 void reset_native_file_format();
1716 bool first_file_data_format_reset;
1717 bool first_file_header_format_reset;
1719 void config_changed (std::string, bool);
1721 XMLNode& get_control_protocol_state ();
1723 void set_history_depth (uint32_t depth);
1724 void sync_order_keys ();
1726 static bool _disable_all_loaded_plugins;
1728 SessionMetadata * _metadata;
1730 mutable bool have_looped; ///< Used in ::audible_frame(*)
1732 void update_have_rec_enabled_diskstream ();
1733 gint _have_rec_enabled_diskstream;
1736 } // namespace ARDOUR
1738 #endif /* __ardour_session_h__ */