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.
21 #ifndef __ardour_session_h__
22 #define __ardour_session_h__
34 #include <glibmm/thread.h>
36 #include <pbd/error.h>
40 #include <midi++/types.h>
41 #include <midi++/mmc.h>
43 #include <pbd/stateful.h>
45 #include <ardour/ardour.h>
46 #include <ardour/configuration.h>
47 #include <ardour/location.h>
48 #include <ardour/gain.h>
49 #include <ardour/io.h>
51 #include <ardour/smpte.h>
77 class AudioDiskstream;
78 class AudioFileSource;
94 class ControlProtocolManager;
96 //class MidiDiskstream;
102 struct AudioExportSpecification;
111 class Session : public sigc::trackable, public Stateful
115 typedef std::pair<Route*,bool> RouteBooleanState;
116 typedef vector<RouteBooleanState> GlobalRouteBooleanState;
117 typedef std::pair<Route*,MeterPoint> RouteMeterState;
118 typedef vector<RouteMeterState> GlobalRouteMeterState;
133 enum AutoConnectOption {
134 AutoConnectPhysical = 0x1,
135 AutoConnectMaster = 0x2
152 InputConfigurationChange,
156 /* only one of each of these events
157 can be queued at any one time
173 jack_nframes_t action_frame;
174 jack_nframes_t target_frame;
180 Session::SlaveSource slave;
183 list<AudioRange> audio_range;
184 list<MusicRange> music_range;
186 Event(Type t, Action a, jack_nframes_t when, jack_nframes_t where, float spd, bool yn = false)
190 target_frame (where),
194 void set_ptr (void* p) {
198 bool before (const Event& other) const {
199 return action_frame < other.action_frame;
202 bool after (const Event& other) const {
203 return action_frame > other.action_frame;
206 static bool compare (const Event *e1, const Event *e2) {
207 return e1->before (*e2);
210 void *operator new (size_t ignored) {
211 return pool.alloc ();
214 void operator delete(void *ptr, size_t size) {
218 static const jack_nframes_t Immediate = 0;
221 static MultiAllocSingleReleasePool pool;
224 /* creating from an XML file */
226 Session (AudioEngine&,
228 string snapshot_name,
229 string* mix_template = 0);
231 /* creating a new Session */
233 Session (AudioEngine&,
235 string snapshot_name,
236 AutoConnectOption input_auto_connect,
237 AutoConnectOption output_auto_connect,
238 uint32_t control_out_channels,
239 uint32_t master_out_channels,
240 uint32_t n_physical_in,
241 uint32_t n_physical_out,
242 jack_nframes_t initial_length);
247 static int find_session (string str, string& path, string& snapshot, bool& isnew);
249 string path() const { return _path; }
250 string name() const { return _name; }
251 string snap_name() const { return _current_snapshot_name; }
253 void set_snap_name ();
257 bool dirty() const { return _state_of_the_state & Dirty; }
258 sigc::signal<void> DirtyChanged;
260 std::string sound_dir () const;
261 std::string tape_dir () const;
262 std::string peak_dir () const;
263 std::string dead_sound_dir () const;
264 std::string automation_dir () const;
266 static string suffixed_search_path (std::string suffix, bool data);
267 static string control_protocol_path ();
268 static string template_path ();
269 static string template_dir ();
270 static void get_template_list (list<string>&);
272 static string change_audio_path_by_name (string oldpath, string oldname, string newname, bool destructive);
273 static string peak_path_from_audio_path (string);
274 string audio_path_from_name (string, uint32_t nchans, uint32_t chan, bool destructive);
276 void process (jack_nframes_t nframes);
278 vector<Sample*>& get_passthru_buffers() { return _passthru_buffers; }
279 vector<Sample*>& get_silent_buffers (uint32_t howmany);
280 vector<Sample*>& get_send_buffers () { return _send_buffers; }
282 Diskstream *diskstream_by_id (const PBD::ID& id);
283 Diskstream *diskstream_by_name (string name);
285 bool have_captured() const { return _have_captured; }
287 void refill_all_diskstream_buffers ();
288 uint32_t diskstream_buffer_size() const { return dstream_buffer_size; }
290 uint32_t get_next_diskstream_id() const { return n_diskstreams(); }
291 uint32_t n_diskstreams() const;
293 template<class T> void foreach_diskstream (T *obj, void (T::*func)(Diskstream&));
295 typedef list<Diskstream *> DiskstreamList;
297 Session::DiskstreamList disk_streams() const {
298 Glib::RWLock::ReaderLock lm (diskstream_lock);
299 return diskstreams; /* XXX yes, force a copy */
302 typedef list<Route *> RouteList;
304 RouteList get_routes() const {
305 Glib::RWLock::ReaderLock rlock (route_lock);
306 return routes; /* XXX yes, force a copy */
309 uint32_t nroutes() const { return routes.size(); }
310 uint32_t ntracks () const;
311 uint32_t nbusses () const;
313 struct RoutePublicOrderSorter {
314 bool operator() (Route *, Route *b);
317 template<class T> void foreach_route (T *obj, void (T::*func)(Route&));
318 template<class T> void foreach_route (T *obj, void (T::*func)(Route*));
319 template<class T, class A> void foreach_route (T *obj, void (T::*func)(Route&, A), A arg);
321 Route *route_by_name (string);
322 Route *route_by_remote_id (uint32_t id);
324 bool route_name_unique (string) const;
326 bool get_record_enabled() const {
327 return (record_status () >= Enabled);
330 RecordState record_status() const {
331 return (RecordState) g_atomic_int_get (&_record_status);
334 bool actively_recording () {
335 return record_status() == Recording;
338 bool record_enabling_legal () const;
339 void maybe_enable_record ();
340 void disable_record (bool rt_context, bool force = false);
341 void step_back_from_record ();
343 sigc::signal<void> going_away;
345 /* Proxy signal for region hidden changes */
347 sigc::signal<void,Region*> RegionHiddenChange;
349 /* Emitted when all i/o connections are complete */
351 sigc::signal<void> IOConnectionsComplete;
353 /* Record status signals */
355 sigc::signal<void> RecordStateChanged;
357 /* Transport mechanism signals */
359 sigc::signal<void> TransportStateChange; /* generic */
360 sigc::signal<void,jack_nframes_t> PositionChanged; /* sent after any non-sequential motion */
361 sigc::signal<void> DurationChanged;
362 sigc::signal<void> HaltOnXrun;
364 sigc::signal<void,Route*> RouteAdded;
365 sigc::signal<void,Diskstream*> DiskstreamAdded;
367 void request_roll ();
368 void request_bounded_roll (jack_nframes_t start, jack_nframes_t end);
369 void request_stop (bool abort = false);
370 void request_locate (jack_nframes_t frame, bool with_roll = false);
371 void request_auto_loop (bool yn);
372 jack_nframes_t last_transport_start() const { return _last_roll_location; }
373 void goto_end () { request_locate (end_location->start(), false);}
374 void goto_start () { request_locate (start_location->start(), false); }
375 void use_rf_shuttle_speed ();
376 void request_transport_speed (float speed);
377 void request_overwrite_buffer (Diskstream*);
378 void request_diskstream_speed (Diskstream&, float speed);
379 void request_input_change_handling ();
381 bool locate_pending() const { return static_cast<bool>(post_transport_work&PostTransportLocate); }
382 bool transport_locked () const;
385 //int wipe_diskstream (AudioDiskstream *);
387 int remove_region_from_region_list (Region&);
389 jack_nframes_t get_maximum_extent () const;
390 jack_nframes_t current_end_frame() const { return end_location->start(); }
391 jack_nframes_t current_start_frame() const { return start_location->start(); }
392 jack_nframes_t frame_rate() const { return _current_frame_rate; }
393 double frames_per_smpte_frame() const { return _frames_per_smpte_frame; }
394 jack_nframes_t frames_per_hour() const { return _frames_per_hour; }
395 jack_nframes_t smpte_frames_per_hour() const { return _smpte_frames_per_hour; }
399 Locations *locations() { return &_locations; }
401 sigc::signal<void,Location*> auto_loop_location_changed;
402 sigc::signal<void,Location*> auto_punch_location_changed;
403 sigc::signal<void> locations_modified;
405 void set_auto_punch_location (Location *);
406 void set_auto_loop_location (Location *);
436 sigc::signal<void,ControlType> ControlChanged;
438 void set_auto_play (bool yn);
439 void set_auto_return (bool yn);
440 void set_auto_input (bool yn);
441 void reset_input_monitor_state ();
442 void set_input_auto_connect (bool yn);
443 void set_output_auto_connect (AutoConnectOption);
444 void set_punch_in (bool yn);
445 void set_punch_out (bool yn);
446 void set_send_mtc (bool yn);
447 void set_send_mmc (bool yn);
448 void set_mmc_control (bool yn);
449 void set_midi_feedback (bool yn);
450 void set_midi_control (bool yn);
451 void set_do_not_record_plugins (bool yn);
452 void set_crossfades_active (bool yn);
453 void set_seamless_loop (bool yn);
455 bool get_auto_play () const { return auto_play; }
456 bool get_auto_input () const { return auto_input; }
457 bool get_auto_loop () const { return auto_loop; }
458 bool get_seamless_loop () const { return seamless_loop; }
459 bool get_punch_in () const { return punch_in; }
460 bool get_punch_out () const { return punch_out; }
461 bool get_all_safe () const { return all_safe; }
462 bool get_auto_return () const { return auto_return; }
463 bool get_send_mtc () const;
464 bool get_send_mmc () const;
465 bool get_mmc_control () const;
466 bool get_midi_feedback () const;
467 bool get_midi_control () const;
468 bool get_do_not_record_plugins () const { return do_not_record_plugins; }
469 bool get_crossfades_active () const { return crossfades_active; }
471 bool get_input_auto_connect () const;
472 AutoConnectOption get_output_auto_connect () const { return output_auto_connect; }
480 void set_layer_model (LayerModel);
481 LayerModel get_layer_model () const { return layer_model; }
483 void set_xfade_model (CrossfadeModel);
484 CrossfadeModel get_xfade_model () const { return xfade_model; }
486 void add_event (jack_nframes_t action_frame, Event::Type type, jack_nframes_t target_frame = 0);
487 void remove_event (jack_nframes_t frame, Event::Type type);
488 void clear_events (Event::Type type);
490 jack_nframes_t get_block_size() const { return current_block_size; }
491 jack_nframes_t worst_output_latency () const { return _worst_output_latency; }
492 jack_nframes_t worst_input_latency () const { return _worst_input_latency; }
493 jack_nframes_t worst_track_latency () const { return _worst_track_latency; }
495 int save_state (string snapshot_name, bool pending = false);
496 int restore_state (string snapshot_name);
497 int save_template (string template_name);
499 static int rename_template (string old_name, string new_name);
501 static int delete_template (string name);
503 sigc::signal<void,string> StateSaved;
504 sigc::signal<void> StateReady;
506 vector<string*>* possible_states() const;
507 static vector<string*>* possible_states(string path);
509 XMLNode& get_state();
510 int set_state(const XMLNode& node);
511 XMLNode& get_template();
513 void add_instant_xml (XMLNode&, const std::string& dir);
515 void swap_configuration(Configuration** new_config);
516 void copy_configuration(Configuration* new_config);
518 enum StateOfTheState {
523 InitialConnecting = 0x8,
528 StateOfTheState state_of_the_state() const { return _state_of_the_state; }
530 RouteGroup* add_edit_group (string);
531 RouteGroup* add_mix_group (string);
533 void remove_edit_group (RouteGroup&);
534 void remove_mix_group (RouteGroup&);
536 RouteGroup *mix_group_by_name (string);
537 RouteGroup *edit_group_by_name (string);
539 sigc::signal<void,RouteGroup*> edit_group_added;
540 sigc::signal<void,RouteGroup*> mix_group_added;
541 sigc::signal<void> edit_group_removed;
542 sigc::signal<void> mix_group_removed;
544 void foreach_edit_group (sigc::slot<void,RouteGroup*> sl) {
545 for (list<RouteGroup *>::iterator i = edit_groups.begin(); i != edit_groups.end(); i++) {
550 void foreach_mix_group (sigc::slot<void,RouteGroup*> sl) {
551 for (list<RouteGroup *>::iterator i = mix_groups.begin(); i != mix_groups.end(); i++) {
556 /* fundamental operations. duh. */
558 AudioTrack *new_audio_track (int input_channels, int output_channels, TrackMode mode = Normal);
559 Route *new_audio_route (int input_channels, int output_channels);
561 MidiTrack *new_midi_track (TrackMode mode = Normal);
562 Route *new_midi_route ();
564 void remove_route (Route&);
565 void resort_routes (void *src);
567 AudioEngine &engine() { return _engine; };
569 /* configuration. there should really be accessors/mutators
573 float meter_hold () { return _meter_hold; }
574 void set_meter_hold (float);
575 sigc::signal<void> MeterHoldChanged;
577 float meter_falloff () { return _meter_falloff; }
578 void set_meter_falloff (float);
579 sigc::signal<void> MeterFalloffChanged;
583 string click_emphasis_sound;
585 bool click_requested;
586 jack_nframes_t over_length_short;
587 jack_nframes_t over_length_long;
588 bool send_midi_timecode;
589 bool send_midi_machine_control;
590 float shuttle_speed_factor;
591 float shuttle_speed_threshold;
593 float smpte_frames_per_second;
594 bool smpte_drop_frames;
600 jack_nframes_t transport_frame () const {return _transport_frame; }
601 jack_nframes_t audible_frame () const;
603 int set_smpte_type (float fps, bool drop_frames);
605 void bbt_time (jack_nframes_t when, BBT_Time&);
606 void smpte_to_sample( SMPTE::Time& smpte, jack_nframes_t& sample, bool use_offset, bool use_subframes ) const;
607 void sample_to_smpte( jack_nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const;
608 void smpte_time (SMPTE::Time &);
609 void smpte_time (jack_nframes_t when, SMPTE::Time&);
610 void smpte_time_subframes (jack_nframes_t when, SMPTE::Time&);
612 void smpte_duration (jack_nframes_t, SMPTE::Time&) const;
613 void smpte_duration_string (char *, jack_nframes_t) const;
615 void set_smpte_offset (jack_nframes_t);
616 jack_nframes_t smpte_offset () const { return _smpte_offset; }
617 void set_smpte_offset_negative (bool);
618 bool smpte_offset_negative () const { return _smpte_offset_negative; }
620 jack_nframes_t convert_to_frames_at (jack_nframes_t position, AnyTime&);
622 static sigc::signal<void> SMPTEOffsetChanged;
623 sigc::signal<void> SMPTETypeChanged;
625 void request_slave_source (SlaveSource, jack_nframes_t pos = 0);
626 SlaveSource slave_source() const { return _slave_type; }
627 bool synced_to_jack() const { return _slave_type == JACK; }
628 float transport_speed() const { return _transport_speed; }
629 bool transport_stopped() const { return _transport_speed == 0.0f; }
630 bool transport_rolling() const { return _transport_speed != 0.0f; }
632 int jack_slave_sync (jack_nframes_t);
634 TempoMap& tempo_map() { return *_tempo_map; }
638 sigc::signal<void,AudioRegion *> AudioRegionAdded;
639 sigc::signal<void,AudioRegion *> AudioRegionRemoved;
641 int region_name (string& result, string base = string(""), bool newlevel = false) const;
642 string new_region_name (string);
643 string path_from_region_name (string name, string identifier);
645 AudioRegion* find_whole_file_parent (AudioRegion&);
646 void find_equivalent_playlist_regions (AudioRegion&, std::vector<AudioRegion*>& result);
648 AudioRegion *XMLRegionFactory (const XMLNode&, bool full);
650 template<class T> void foreach_audio_region (T *obj, void (T::*func)(AudioRegion *));
652 /* source management */
654 struct import_status : public InterThreadInfo {
660 volatile bool freeze;
664 std::vector<AudioRegion*> new_regions;
668 int import_audiofile (import_status&);
669 bool sample_rate_convert (import_status&, string infile, string& outfile);
670 string build_tmp_convert_name (string file);
672 Session::SlaveSource post_export_slave;
673 jack_nframes_t post_export_position;
675 int start_audio_export (ARDOUR::AudioExportSpecification&);
676 int stop_audio_export (ARDOUR::AudioExportSpecification&);
678 void add_audio_source (AudioSource *);
679 void remove_source (Source *);
680 int cleanup_audio_file_source (AudioFileSource&);
682 struct cleanup_report {
683 vector<string> paths;
687 int cleanup_sources (cleanup_report&);
688 int cleanup_trash_sources (cleanup_report&);
690 int destroy_region (Region*);
691 int destroy_regions (list<Region*>);
693 int remove_last_capture ();
695 /* handlers should return -1 for "stop cleanup", 0 for
696 "yes, delete this playlist" and 1 for "no, don't delete
700 sigc::signal<int,ARDOUR::Playlist*> AskAboutPlaylistDeletion;
703 /* handlers should return !0 for use pending state, 0 for
707 static sigc::signal<int> AskAboutPendingState;
709 sigc::signal<void,Source *> SourceAdded;
710 sigc::signal<void,Source *> SourceRemoved;
712 AudioFileSource *create_audio_source_for_session (ARDOUR::AudioDiskstream&, uint32_t which_channel, bool destructive);
714 Source *source_by_id (const PBD::ID&);
716 /* playlist management */
718 Playlist* playlist_by_name (string name);
719 void add_playlist (Playlist *);
720 sigc::signal<void,Playlist*> PlaylistAdded;
721 sigc::signal<void,Playlist*> PlaylistRemoved;
723 uint32_t n_playlists() const;
725 template<class T> void foreach_playlist (T *obj, void (T::*func)(Playlist *));
727 /* named selections */
729 NamedSelection* named_selection_by_name (string name);
730 void add_named_selection (NamedSelection *);
731 void remove_named_selection (NamedSelection *);
733 template<class T> void foreach_named_selection (T& obj, void (T::*func)(NamedSelection&));
734 sigc::signal<void> NamedSelectionAdded;
735 sigc::signal<void> NamedSelectionRemoved;
739 float get_default_fade_length () const { return default_fade_msecs; }
740 float get_default_fade_steepness () const { return default_fade_steepness; }
741 void set_default_fade (float steepness, float msecs);
745 Auditioner& the_auditioner() { return *auditioner; }
746 void audition_playlist ();
747 void audition_region (AudioRegion&);
748 void cancel_audition ();
749 bool is_auditioning () const;
751 sigc::signal<void,bool> AuditionActive;
753 /* flattening stuff */
755 int write_one_audio_track (AudioTrack&, jack_nframes_t start, jack_nframes_t cnt, bool overwrite, vector<AudioSource*>&,
756 InterThreadInfo& wot);
757 int freeze (InterThreadInfo&);
759 /* session-wide solo/mute/rec-enable */
766 bool soloing() const { return currently_soloing; }
768 SoloModel solo_model() const { return _solo_model; }
769 void set_solo_model (SoloModel);
771 bool solo_latched() const { return _solo_latched; }
772 void set_solo_latched (bool yn);
774 void set_all_solo (bool);
775 void set_all_mute (bool);
777 sigc::signal<void,bool> SoloActive;
779 void record_disenable_all ();
780 void record_enable_all ();
782 /* control/master out */
784 IO* control_out() const { return _control_out; }
785 IO* master_out() const { return _master_out; }
787 /* insert/send management */
789 uint32_t n_port_inserts() const { return _port_inserts.size(); }
790 uint32_t n_plugin_inserts() const { return _plugin_inserts.size(); }
791 uint32_t n_sends() const { return _sends.size(); }
793 string next_send_name();
794 string next_insert_name();
796 /* s/w "RAID" management */
798 jack_nframes_t available_capture_duration();
800 /* I/O Connections */
802 template<class T> void foreach_connection (T *obj, void (T::*func)(Connection *));
803 void add_connection (Connection *);
804 void remove_connection (Connection *);
805 Connection *connection_by_name (string) const;
807 sigc::signal<void,Connection *> ConnectionAdded;
808 sigc::signal<void,Connection *> ConnectionRemoved;
812 int set_mtc_port (string port_tag);
813 int set_mmc_port (string port_tag);
814 int set_midi_port (string port_tag);
815 MIDI::Port *mtc_port() const { return _mtc_port; }
816 MIDI::Port *mmc_port() const { return _mmc_port; }
817 MIDI::Port *midi_port() const { return _midi_port; }
819 sigc::signal<void> MTC_PortChanged;
820 sigc::signal<void> MMC_PortChanged;
821 sigc::signal<void> MIDI_PortChanged;
823 void set_trace_midi_input (bool, MIDI::Port* port = 0);
824 void set_trace_midi_output (bool, MIDI::Port* port = 0);
826 bool get_trace_midi_input(MIDI::Port *port = 0);
827 bool get_trace_midi_output(MIDI::Port *port = 0);
829 void send_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
831 void deliver_midi (MIDI::Port*, MIDI::byte*, int32_t size);
835 void start_scrub (jack_nframes_t where);
837 void set_scrub_speed (float);
838 jack_nframes_t scrub_buffer_size() const;
839 sigc::signal<void> ScrubReady;
841 /* History (for editors, mixers, UIs etc.) */
843 void undo (uint32_t n) {
846 void redo (uint32_t n) {
850 uint32_t undo_depth() const { return history.undo_depth(); }
851 uint32_t redo_depth() const { return history.redo_depth(); }
852 string next_undo() const { return history.next_undo(); }
853 string next_redo() const { return history.next_redo(); }
855 void begin_reversible_command (string cmd_name, UndoAction *private_undo = 0);
856 void commit_reversible_command (UndoAction* private_redo = 0);
858 void add_undo (const UndoAction& ua) {
859 current_cmd.add_undo (ua);
861 void add_redo (const UndoAction& ua) {
862 current_cmd.add_redo (ua);
864 void add_redo_no_execute (const UndoAction& ua) {
865 current_cmd.add_redo_no_execute (ua);
868 UndoAction global_solo_memento (void *src);
869 UndoAction global_mute_memento (void *src);
870 UndoAction global_record_enable_memento (void *src);
871 UndoAction global_metering_memento (void *src);
875 void set_edit_mode (EditMode);
876 EditMode get_edit_mode () const { return _edit_mode; }
880 IO& click_io() { return *_click_io; }
881 void set_clicking (bool yn);
882 bool get_clicking() const;
884 void set_click_sound (string path);
885 void set_click_emphasis_sound (string path);
889 struct TimeStretchRequest {
890 ARDOUR::AudioRegion* region;
891 float fraction; /* session: read ; GUI: write */
892 float progress; /* session: write ; GUI: read */
893 bool running; /* read/write */
894 bool quick_seek; /* GUI: write */
895 bool antialias; /* GUI: write */
897 TimeStretchRequest () : region (0) {}
900 AudioRegion* tempoize_region (TimeStretchRequest&);
902 string raid_path() const;
903 void set_raid_path(string);
905 /* need to call this whenever we change native file formats */
907 void reset_native_file_format();
909 /* disk, buffer loads */
911 uint32_t playback_load ();
912 uint32_t capture_load ();
913 uint32_t playback_load_min ();
914 uint32_t capture_load_min ();
916 void reset_playback_load_min ();
917 void reset_capture_load_min ();
919 float read_data_rate () const;
920 float write_data_rate () const;
924 void set_audio_range (list<AudioRange>&);
925 void set_music_range (list<MusicRange>&);
927 void request_play_range (bool yn);
928 bool get_play_range () const { return _play_range; }
931 typedef vector<string> FavoriteDirs;
933 static int read_favorite_dirs (FavoriteDirs&);
935 static int write_favorite_dirs (FavoriteDirs&);
939 static const char* template_suffix() { return _template_suffix; }
940 static const char* statefile_suffix() { return _statefile_suffix; }
941 static const char* pending_suffix() { return _pending_suffix; }
943 /* buffers for gain and pan */
945 gain_t* gain_automation_buffer () const { return _gain_automation_buffer; }
946 pan_t** pan_automation_buffer() const { return _pan_automation_buffer; }
948 /* buffers for conversion */
955 char * conversion_buffer(RunContext context) { return _conversion_buffers[context]; }
959 static long vst_callback (AEffect* effect,
966 typedef float (*compute_peak_t) (Sample *, jack_nframes_t, float);
967 typedef void (*apply_gain_to_buffer_t) (Sample *, jack_nframes_t, float);
968 typedef void (*mix_buffers_with_gain_t) (Sample *, Sample *, jack_nframes_t, float);
969 typedef void (*mix_buffers_no_gain_t) (Sample *, Sample *, jack_nframes_t);
971 static compute_peak_t compute_peak;
972 static apply_gain_to_buffer_t apply_gain_to_buffer;
973 static mix_buffers_with_gain_t mix_buffers_with_gain;
974 static mix_buffers_no_gain_t mix_buffers_no_gain;
976 static sigc::signal<void> SendFeedback;
980 PBD::Controllable* controllable_by_id (const PBD::ID&);
983 friend class AudioEngine;
984 void set_block_size (jack_nframes_t nframes);
985 void set_frame_rate (jack_nframes_t nframes);
988 friend class Diskstream;
990 void wait_till_butler_finished();
994 void schedule_curve_reallocation ();
995 void update_latency_compensation (bool, bool);
998 int create (bool& new_session, string* mix_template, jack_nframes_t initial_length);
1000 static const char* _template_suffix;
1001 static const char* _statefile_suffix;
1002 static const char* _pending_suffix;
1005 PendingDeclickIn = 0x1,
1006 PendingDeclickOut = 0x2,
1007 StopPendingCapture = 0x4,
1008 AutoReturning = 0x10,
1009 PendingLocate = 0x20,
1010 PendingSetLoop = 0x40
1013 /* stuff used in process() should be close together to
1017 typedef void (Session::*process_function_type)(jack_nframes_t);
1019 AudioEngine &_engine;
1020 mutable gint processing_prohibited;
1021 process_function_type process_function;
1022 process_function_type last_process_function;
1023 jack_nframes_t _current_frame_rate;
1024 int transport_sub_state;
1025 mutable gint _record_status;
1026 jack_nframes_t _transport_frame;
1027 Location* end_location;
1028 Location* start_location;
1030 SlaveSource _slave_type;
1031 volatile float _transport_speed;
1032 volatile float _desired_transport_speed;
1033 float _last_transport_speed;
1034 jack_nframes_t _last_slave_transport_frame;
1035 jack_nframes_t maximum_output_latency;
1036 jack_nframes_t last_stop_frame;
1037 vector<Sample *> _passthru_buffers;
1038 vector<Sample *> _silent_buffers;
1039 vector<Sample *> _send_buffers;
1040 map<RunContext,char*> _conversion_buffers;
1041 jack_nframes_t current_block_size;
1042 jack_nframes_t _worst_output_latency;
1043 jack_nframes_t _worst_input_latency;
1044 jack_nframes_t _worst_track_latency;
1045 bool _have_captured;
1047 float _meter_falloff;
1048 bool _end_location_is_free;
1050 void set_worst_io_latencies (bool take_lock);
1051 void set_worst_io_latencies_x (IOChange asifwecare, void *ignored) {
1052 set_worst_io_latencies (true);
1055 void update_latency_compensation_proxy (void* ignored);
1057 void ensure_passthru_buffers (uint32_t howmany);
1059 void process_scrub (jack_nframes_t);
1060 void process_without_events (jack_nframes_t);
1061 void process_with_events (jack_nframes_t);
1062 void process_audition (jack_nframes_t);
1063 int process_export (jack_nframes_t, ARDOUR::AudioExportSpecification*);
1065 /* slave tracking */
1067 static const int delta_accumulator_size = 25;
1068 int delta_accumulator_cnt;
1069 long delta_accumulator[delta_accumulator_size];
1070 long average_slave_delta;
1072 bool have_first_delta_accumulator;
1080 SlaveState slave_state;
1081 jack_nframes_t slave_wait_end;
1083 void reset_slave_state ();
1084 bool follow_slave (jack_nframes_t, jack_nframes_t);
1087 int prepare_to_export (ARDOUR::AudioExportSpecification&);
1089 void prepare_diskstreams ();
1090 void commit_diskstreams (jack_nframes_t, bool& session_requires_butler);
1091 int process_routes (jack_nframes_t, jack_nframes_t);
1092 int silent_process_routes (jack_nframes_t, jack_nframes_t);
1094 bool get_rec_monitors_input () {
1095 if (actively_recording()) {
1106 int get_transport_declick_required () {
1108 if (transport_sub_state & PendingDeclickIn) {
1109 transport_sub_state &= ~PendingDeclickIn;
1111 } else if (transport_sub_state & PendingDeclickOut) {
1118 bool maybe_stop (jack_nframes_t limit) {
1119 if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
1126 void check_declick_out ();
1128 MIDI::MachineControl* mmc;
1129 MIDI::Port* _mmc_port;
1130 MIDI::Port* _mtc_port;
1131 MIDI::Port* _midi_port;
1134 bool do_not_record_plugins;
1144 jack_nframes_t last_loopend;
1146 bool crossfades_active;
1155 RingBuffer<Event*> pending_events;
1158 void when_engine_running ();
1159 sigc::connection first_time_running;
1160 void graph_reordered ();
1162 string _current_snapshot_name;
1164 XMLTree* state_tree;
1165 bool state_was_pending;
1166 StateOfTheState _state_of_the_state;
1169 int load_options (const XMLNode&);
1170 XMLNode& get_options () const;
1171 int load_state (string snapshot_name);
1173 jack_nframes_t _last_roll_location;
1174 jack_nframes_t _last_record_location;
1175 bool pending_locate_roll;
1176 jack_nframes_t pending_locate_frame;
1178 bool pending_locate_flush;
1180 bool pending_auto_loop;
1182 Sample* butler_mixdown_buffer;
1183 float* butler_gain_buffer;
1184 pthread_t butler_thread;
1185 Glib::Mutex butler_request_lock;
1186 Glib::Cond butler_paused;
1187 bool butler_should_run;
1188 mutable gint butler_should_do_transport_work;
1189 int butler_request_pipe[2];
1191 struct ButlerRequest {
1200 enum PostTransportWork {
1201 PostTransportStop = 0x1,
1202 PostTransportDisableRecord = 0x2,
1203 PostTransportPosition = 0x8,
1204 PostTransportDidRecord = 0x20,
1205 PostTransportDuration = 0x40,
1206 PostTransportLocate = 0x80,
1207 PostTransportRoll = 0x200,
1208 PostTransportAbort = 0x800,
1209 PostTransportOverWrite = 0x1000,
1210 PostTransportSpeed = 0x2000,
1211 PostTransportAudition = 0x4000,
1212 PostTransportScrub = 0x8000,
1213 PostTransportReverse = 0x10000,
1214 PostTransportInputChange = 0x20000,
1215 PostTransportCurveRealloc = 0x40000
1218 static const PostTransportWork ProcessCannotProceedMask =
1219 PostTransportWork (PostTransportInputChange|
1221 PostTransportReverse|
1222 PostTransportCurveRealloc|
1224 PostTransportAudition|
1225 PostTransportLocate|
1228 PostTransportWork post_transport_work;
1230 void summon_butler ();
1231 void schedule_butler_transport_work ();
1232 int start_butler_thread ();
1233 void terminate_butler_thread ();
1234 static void *_butler_thread_work (void *arg);
1235 void* butler_thread_work ();
1237 uint32_t cumulative_rf_motion;
1240 void set_rf_speed (float speed);
1241 void reset_rf_scale (jack_nframes_t frames_moved);
1243 Locations _locations;
1244 void locations_changed ();
1245 void locations_added (Location*);
1246 void handle_locations_changed (Locations::LocationList&);
1248 sigc::connection auto_punch_start_changed_connection;
1249 sigc::connection auto_punch_end_changed_connection;
1250 sigc::connection auto_punch_changed_connection;
1251 void auto_punch_start_changed (Location *);
1252 void auto_punch_end_changed (Location *);
1253 void auto_punch_changed (Location *);
1255 sigc::connection auto_loop_start_changed_connection;
1256 sigc::connection auto_loop_end_changed_connection;
1257 sigc::connection auto_loop_changed_connection;
1258 void auto_loop_changed (Location *);
1260 typedef list<Event *> Events;
1262 Events immediate_events;
1263 Events::iterator next_event;
1265 /* there can only ever be one of each of these */
1267 Event *auto_loop_event;
1268 Event *punch_out_event;
1269 Event *punch_in_event;
1273 void dump_events () const;
1274 void queue_event (Event *ev);
1275 void merge_event (Event*);
1276 void replace_event (Event::Type, jack_nframes_t action_frame, jack_nframes_t target = 0);
1277 bool _replace_event (Event*);
1278 bool _remove_event (Event *);
1279 void _clear_event_type (Event::Type);
1281 void first_stage_init (string path, string snapshot_name);
1282 int second_stage_init (bool new_tracks);
1283 void find_current_end ();
1284 void remove_empty_sounds ();
1286 void setup_midi_control ();
1287 //int midi_read (MIDI::Port *);
1289 void enable_record ();
1291 void increment_transport_position (uint32_t val) {
1292 if (max_frames - val < _transport_frame) {
1293 _transport_frame = max_frames;
1295 _transport_frame += val;
1299 void decrement_transport_position (uint32_t val) {
1300 if (val < _transport_frame) {
1301 _transport_frame -= val;
1303 _transport_frame = 0;
1307 void post_transport_motion ();
1308 static void *session_loader_thread (void *arg);
1312 void set_next_event ();
1313 void process_event (Event *ev);
1315 /* MIDI Machine Control */
1317 void deliver_mmc (MIDI::MachineControl::Command, jack_nframes_t);
1318 //void deliver_midi_message (MIDI::Port * port, MIDI::eventType ev, MIDI::channel_t, MIDI::EventTwoBytes);
1319 //void deliver_data (MIDI::Port* port, MIDI::byte*, int32_t size);
1321 void spp_start (MIDI::Parser&);
1322 void spp_continue (MIDI::Parser&);
1323 void spp_stop (MIDI::Parser&);
1325 void mmc_deferred_play (MIDI::MachineControl &);
1326 void mmc_stop (MIDI::MachineControl &);
1327 void mmc_step (MIDI::MachineControl &, int);
1328 void mmc_pause (MIDI::MachineControl &);
1329 void mmc_record_pause (MIDI::MachineControl &);
1330 void mmc_record_strobe (MIDI::MachineControl &);
1331 void mmc_record_exit (MIDI::MachineControl &);
1332 void mmc_track_record_status (MIDI::MachineControl &,
1333 uint32_t track, bool enabled);
1334 void mmc_fast_forward (MIDI::MachineControl &);
1335 void mmc_rewind (MIDI::MachineControl &);
1336 void mmc_locate (MIDI::MachineControl &, const MIDI::byte *);
1337 void mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw);
1338 void mmc_record_enable (MIDI::MachineControl &mmc, size_t track, bool enabled);
1340 struct timeval last_mmc_step;
1343 typedef sigc::slot<bool> MidiTimeoutCallback;
1344 typedef list<MidiTimeoutCallback> MidiTimeoutList;
1346 MidiTimeoutList midi_timeouts;
1347 bool mmc_step_timeout ();
1349 MIDI::byte mmc_buffer[32];
1350 MIDI::byte mtc_msg[16];
1351 MIDI::byte mtc_smpte_bits; /* encoding of SMTPE type for MTC */
1352 MIDI::byte midi_msg[16];
1353 jack_nframes_t outbound_mtc_smpte_frame;
1354 SMPTE::Time transmitting_smpte_time;
1355 int next_quarter_frame_to_send;
1357 double _frames_per_smpte_frame; /* has to be floating point because of drop frame */
1358 jack_nframes_t _frames_per_hour;
1359 jack_nframes_t _smpte_frames_per_hour;
1360 jack_nframes_t _smpte_offset;
1361 bool _smpte_offset_negative;
1363 /* cache the most-recently requested time conversions. This helps when we
1364 * have multiple clocks showing the same time (e.g. the transport frame) */
1365 bool last_smpte_valid;
1366 jack_nframes_t last_smpte_when;
1367 SMPTE::Time last_smpte;
1369 bool _send_smpte_update; ///< Flag to send a full frame (SMPTE) MTC message this cycle
1371 int send_full_time_code(jack_nframes_t nframes);
1372 int send_midi_time_code_for_cycle(jack_nframes_t nframes);
1374 //void send_mmc_in_another_thread (MIDI::MachineControl::Command, jack_nframes_t frame = 0);
1376 jack_nframes_t adjust_apparent_position (jack_nframes_t frames);
1378 void reset_record_status ();
1380 int no_roll (jack_nframes_t nframes, jack_nframes_t offset);
1382 bool non_realtime_work_pending() const { return static_cast<bool>(post_transport_work); }
1383 bool process_can_proceed() const { return !(post_transport_work & ProcessCannotProceedMask); }
1385 struct MIDIRequest {
1398 MIDI::MachineControl::Command mmc_cmd;
1399 jack_nframes_t locate_frame;
1401 // for SendMessage type
1404 MIDI::channel_t chan;
1406 MIDI::EventTwoBytes data;
1417 void *operator new(size_t ignored) {
1418 return pool.alloc ();
1421 void operator delete(void *ptr, size_t size) {
1426 static MultiAllocSingleReleasePool pool;
1429 mutable gint butler_active;
1431 //PBD::Lock midi_lock;
1432 //pthread_t midi_thread;
1433 //int midi_request_pipe[2];
1435 //RingBuffer<MIDIRequest*> midi_requests;
1436 /*int start_midi_thread ();
1437 void terminate_midi_thread ();
1438 void poke_midi_thread ();
1439 static void *_midi_thread_work (void *arg);
1440 void midi_thread_work ();*/
1441 void change_midi_ports ();
1442 int use_config_midi_ports ();
1444 bool waiting_to_start;
1446 void set_auto_loop (bool yn);
1447 void overwrite_some_buffers (Diskstream*);
1448 void flush_all_redirects ();
1449 void locate (jack_nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1450 void start_locate (jack_nframes_t, bool with_roll, bool with_flush, bool with_loop=false);
1451 void force_locate (jack_nframes_t frame, bool with_roll = false);
1452 void set_diskstream_speed (Diskstream*, float speed);
1453 void set_transport_speed (float speed, bool abort = false);
1454 void stop_transport (bool abort = false);
1455 void start_transport ();
1456 void actually_start_transport ();
1457 void realtime_stop (bool abort);
1458 void non_realtime_start_scrub ();
1459 void non_realtime_set_speed ();
1460 void non_realtime_stop (bool abort);
1461 void non_realtime_overwrite ();
1462 void non_realtime_buffer_fill ();
1463 void butler_transport_work ();
1464 void post_transport ();
1465 void engine_halted ();
1466 void xrun_recovery ();
1468 TempoMap *_tempo_map;
1469 void tempo_map_changed (Change);
1471 /* edit/mix groups */
1473 int load_route_groups (const XMLNode&, bool is_edit);
1474 int load_edit_groups (const XMLNode&);
1475 int load_mix_groups (const XMLNode&);
1478 list<RouteGroup *> edit_groups;
1479 list<RouteGroup *> mix_groups;
1483 DiskstreamList diskstreams;
1484 mutable Glib::RWLock diskstream_lock;
1485 uint32_t dstream_buffer_size;
1486 void add_diskstream (Diskstream*);
1487 int load_diskstreams (const XMLNode&);
1492 mutable Glib::RWLock route_lock;
1493 void add_route (Route*);
1494 uint32_t destructive_index;
1496 int load_routes (const XMLNode&);
1497 Route* XMLRouteFactory (const XMLNode&);
1502 SoloModel _solo_model;
1503 bool solo_update_disabled;
1504 bool currently_soloing;
1506 void route_mute_changed (void *src);
1507 void route_solo_changed (void *src, Route *);
1508 void catch_up_on_solo ();
1509 void update_route_solo_state ();
1510 void modify_solo_mute (bool, bool);
1511 void strip_portname_for_solo (string& portname);
1513 /* REGION MANAGEMENT */
1515 mutable Glib::Mutex region_lock;
1516 typedef map<PBD::ID,AudioRegion *> AudioRegionList;
1517 AudioRegionList audio_regions;
1519 void region_renamed (Region *);
1520 void region_changed (Change, Region *);
1521 void add_region (Region *);
1522 void remove_region (Region *);
1524 int load_regions (const XMLNode& node);
1528 mutable Glib::Mutex audio_source_lock;
1529 typedef std::map<PBD::ID,AudioSource *> AudioSourceList;
1531 AudioSourceList audio_sources;
1533 int load_sources (const XMLNode& node);
1534 XMLNode& get_sources_as_xml ();
1536 Source *XMLSourceFactory (const XMLNode&);
1540 mutable Glib::Mutex playlist_lock;
1541 typedef set<Playlist *> PlaylistList;
1542 PlaylistList playlists;
1543 PlaylistList unused_playlists;
1545 int load_playlists (const XMLNode&);
1546 int load_unused_playlists (const XMLNode&);
1547 void remove_playlist (Playlist *);
1548 void track_playlist (Playlist *, bool);
1550 Playlist *playlist_factory (string name);
1551 Playlist *XMLPlaylistFactory (const XMLNode&);
1553 void playlist_length_changed (Playlist *);
1554 void diskstream_playlist_changed (Diskstream *);
1556 /* NAMED SELECTIONS */
1558 mutable Glib::Mutex named_selection_lock;
1559 typedef set<NamedSelection *> NamedSelectionList;
1560 NamedSelectionList named_selections;
1562 int load_named_selections (const XMLNode&);
1564 NamedSelection *named_selection_factory (string name);
1565 NamedSelection *XMLNamedSelectionFactory (const XMLNode&);
1567 /* DEFAULT FADE CURVES */
1569 float default_fade_steepness;
1570 float default_fade_msecs;
1574 Auditioner *auditioner;
1575 void set_audition (AudioRegion*);
1576 void non_realtime_set_audition ();
1577 AudioRegion *pending_audition_region;
1583 int flatten_one_track (AudioTrack&, jack_nframes_t start, jack_nframes_t cnt);
1585 /* INSERT AND SEND MANAGEMENT */
1587 list<PortInsert *> _port_inserts;
1588 list<PluginInsert *> _plugin_inserts;
1589 list<Send *> _sends;
1591 uint32_t insert_cnt;
1593 void add_redirect (Redirect *);
1594 void remove_redirect (Redirect *);
1598 struct space_and_path {
1599 uint32_t blocks; /* 4kB blocks */
1607 struct space_and_path_ascending_cmp {
1608 bool operator() (space_and_path a, space_and_path b) {
1609 return a.blocks > b.blocks;
1613 void setup_raid_path (string path);
1615 vector<space_and_path> session_dirs;
1616 vector<space_and_path>::iterator last_rr_session_dir;
1617 uint32_t _total_free_4k_blocks;
1618 Glib::Mutex space_lock;
1620 static const char* sound_dir_name;
1621 static const char* tape_dir_name;
1622 static const char* dead_sound_dir_name;
1623 static const char* peak_dir_name;
1625 string discover_best_sound_dir (bool destructive = false);
1626 int ensure_sound_dir (string, string&);
1627 void refresh_disk_space ();
1629 mutable gint _playback_load;
1630 mutable gint _capture_load;
1631 mutable gint _playback_load_min;
1632 mutable gint _capture_load_min;
1634 /* I/O Connections */
1636 typedef list<Connection *> ConnectionList;
1637 mutable Glib::Mutex connection_lock;
1638 ConnectionList _connections;
1639 int load_connections (const XMLNode&);
1641 int set_slave_source (SlaveSource, jack_nframes_t);
1643 void reverse_diskstream_buffers ();
1645 UndoHistory history;
1646 UndoCommand current_cmd;
1648 GlobalRouteBooleanState get_global_route_boolean (bool (Route::*method)(void) const);
1649 GlobalRouteMeterState get_global_route_metering ();
1651 void set_global_route_boolean (GlobalRouteBooleanState s, void (Route::*method)(bool, void*), void *arg);
1652 void set_global_route_metering (GlobalRouteMeterState s, void *arg);
1654 void set_global_mute (GlobalRouteBooleanState s, void *src);
1655 void set_global_solo (GlobalRouteBooleanState s, void *src);
1656 void set_global_record_enable (GlobalRouteBooleanState s, void *src);
1658 void jack_timebase_callback (jack_transport_state_t, jack_nframes_t, jack_position_t*, int);
1659 int jack_sync_callback (jack_transport_state_t, jack_position_t*);
1660 void record_enable_change_all (bool yn);
1662 XMLNode& state(bool);
1667 jack_nframes_t start;
1668 jack_nframes_t duration;
1669 jack_nframes_t offset;
1672 Click (jack_nframes_t s, jack_nframes_t d, const Sample *b)
1673 : start (s), duration (d), data (b) { offset = 0; }
1675 void *operator new(size_t ignored) {
1676 return pool.alloc ();
1679 void operator delete(void *ptr, size_t size) {
1687 typedef list<Click*> Clicks;
1693 Sample* click_emphasis_data;
1694 jack_nframes_t click_length;
1695 jack_nframes_t click_emphasis_length;
1696 mutable Glib::RWLock click_lock;
1698 static const Sample default_click[];
1699 static const jack_nframes_t default_click_length;
1700 static const Sample default_click_emphasis[];
1701 static const jack_nframes_t default_click_emphasis_length;
1704 void setup_click_sounds (int which);
1705 void clear_clicks ();
1706 void click (jack_nframes_t start, jack_nframes_t nframes, jack_nframes_t offset);
1708 vector<Route*> master_outs;
1710 EditMode _edit_mode;
1711 EditMode pending_edit_mode;
1713 /* range playback */
1715 list<AudioRange> current_audio_range;
1717 void set_play_range (bool yn);
1718 void setup_auto_play ();
1726 AutoConnectOption input_auto_connect;
1727 AutoConnectOption output_auto_connect;
1729 gain_t* _gain_automation_buffer;
1730 pan_t** _pan_automation_buffer;
1731 void allocate_pan_automation_buffers (jack_nframes_t nframes, uint32_t howmany, bool force);
1732 uint32_t _npan_buffers;
1736 long _vst_callback (VSTPlugin*,
1743 /* number of hardware audio ports we're using,
1744 based on max (requested,available)
1747 uint32_t n_physical_outputs;
1748 uint32_t n_physical_inputs;
1750 void remove_pending_capture_state ();
1752 int find_all_sources (std::string path, std::set<std::string>& result);
1753 int find_all_sources_across_snapshots (std::set<std::string>& result, bool exclude_this_snapshot);
1755 LayerModel layer_model;
1756 CrossfadeModel xfade_model;
1758 typedef std::list<PBD::Controllable*> Controllables;
1759 Glib::Mutex controllables_lock;
1760 Controllables controllables;
1762 void add_controllable (PBD::Controllable*);
1763 void remove_controllable (PBD::Controllable*);
1766 }; /* namespace ARDOUR */
1768 #endif /* __ardour_session_h__ */