2 Copyright (C) 1999-2003 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.
24 #include <sigc++/bind.h>
25 #include <sigc++/retype.h>
28 #include <pbd/error.h>
29 #include <glibmm/thread.h>
30 #include <pbd/pthread_utils.h>
31 #include <pbd/memento_command.h>
32 #include <pbd/stacktrace.h>
34 #include <midi++/mmc.h>
35 #include <midi++/port.h>
37 #include <ardour/ardour.h>
38 #include <ardour/audioengine.h>
39 #include <ardour/session.h>
40 #include <ardour/audio_diskstream.h>
41 #include <ardour/auditioner.h>
42 #include <ardour/slave.h>
43 #include <ardour/location.h>
48 using namespace ARDOUR;
53 Session::request_input_change_handling ()
55 if (!(_state_of_the_state & (InitialConnecting|Deletion))) {
56 Event* ev = new Event (Event::InputConfigurationChange, Event::Add, Event::Immediate, 0, 0.0);
62 Session::request_slave_source (SlaveSource src)
64 Event* ev = new Event (Event::SetSlaveSource, Event::Add, Event::Immediate, 0, 0.0);
67 /* could set_seamless_loop() be disposed of entirely?*/
68 Config->set_seamless_loop (false);
70 Config->set_seamless_loop (true);
77 Session::request_transport_speed (double speed)
79 Event* ev = new Event (Event::SetTransportSpeed, Event::Add, Event::Immediate, 0, speed);
84 Session::request_diskstream_speed (Diskstream& ds, double speed)
86 Event* ev = new Event (Event::SetDiskstreamSpeed, Event::Add, Event::Immediate, 0, speed);
92 Session::request_stop (bool abort)
94 Event* ev = new Event (Event::SetTransportSpeed, Event::Add, Event::Immediate, 0, 0.0, abort);
99 Session::request_locate (nframes_t target_frame, bool with_roll)
101 Event *ev = new Event (with_roll ? Event::LocateRoll : Event::Locate, Event::Add, Event::Immediate, target_frame, 0, false);
106 Session::force_locate (nframes_t target_frame, bool with_roll)
108 Event *ev = new Event (with_roll ? Event::LocateRoll : Event::Locate, Event::Add, Event::Immediate, target_frame, 0, true);
113 Session::request_play_loop (bool yn)
116 Location *location = _locations.auto_loop_location();
118 if (location == 0 && yn) {
119 error << _("Cannot loop - no loop range defined")
124 ev = new Event (Event::SetLoop, Event::Add, Event::Immediate, 0, 0.0, yn);
127 if (!yn && Config->get_seamless_loop() && transport_rolling()) {
128 // request an immediate locate to refresh the diskstreams
129 // after disabling looping
130 request_locate (_transport_frame-1, false);
135 Session::realtime_stop (bool abort)
137 /* assume that when we start, we'll be moving forwards */
139 // FIXME: where should this really be? [DR]
140 //send_full_time_code();
141 deliver_mmc (MIDI::MachineControl::cmdStop, 0);
142 deliver_mmc (MIDI::MachineControl::cmdLocate, _transport_frame);
144 if (_transport_speed < 0.0f) {
145 post_transport_work = PostTransportWork (post_transport_work | PostTransportStop | PostTransportReverse);
147 post_transport_work = PostTransportWork (post_transport_work | PostTransportStop);
150 if (actively_recording()) {
152 /* move the transport position back to where the
153 request for a stop was noticed. we rolled
154 past that point to pick up delayed input.
157 #ifndef LEAVE_TRANSPORT_UNADJUSTED
158 decrement_transport_position (_worst_output_latency);
161 /* the duration change is not guaranteed to have happened, but is likely */
163 post_transport_work = PostTransportWork (post_transport_work | PostTransportDuration);
167 post_transport_work = PostTransportWork (post_transport_work | PostTransportAbort);
170 _clear_event_type (Event::StopOnce);
171 _clear_event_type (Event::RangeStop);
172 _clear_event_type (Event::RangeLocate);
174 disable_record (true);
176 reset_slave_state ();
178 _transport_speed = 0;
183 if (Config->get_use_video_sync()) {
184 waiting_for_sync_offset = true;
187 transport_sub_state = ((Config->get_slave_source() == None && Config->get_auto_return()) ? AutoReturning : 0);
191 Session::butler_transport_work ()
195 boost::shared_ptr<RouteList> r = routes.reader ();
196 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
198 int on_entry = g_atomic_int_get (&butler_should_do_transport_work);
201 if (post_transport_work & PostTransportCurveRealloc) {
202 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
203 (*i)->curve_reallocate();
207 if (post_transport_work & PostTransportInputChange) {
208 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
209 (*i)->non_realtime_input_change ();
213 if (post_transport_work & PostTransportSpeed) {
214 non_realtime_set_speed ();
217 if (post_transport_work & PostTransportReverse) {
220 cumulative_rf_motion = 0;
223 /* don't seek if locate will take care of that in non_realtime_stop() */
225 if (!(post_transport_work & PostTransportLocate)) {
227 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
228 if (!(*i)->hidden()) {
229 (*i)->non_realtime_locate (_transport_frame);
231 if (on_entry != g_atomic_int_get (&butler_should_do_transport_work)) {
232 /* new request, stop seeking, and start again */
233 g_atomic_int_dec_and_test (&butler_should_do_transport_work);
240 if (post_transport_work & PostTransportLocate) {
241 non_realtime_locate ();
244 if (post_transport_work & PostTransportStop) {
245 non_realtime_stop (post_transport_work & PostTransportAbort, on_entry, finished);
247 g_atomic_int_dec_and_test (&butler_should_do_transport_work);
252 if (post_transport_work & PostTransportOverWrite) {
253 non_realtime_overwrite (on_entry, finished);
255 g_atomic_int_dec_and_test (&butler_should_do_transport_work);
260 if (post_transport_work & PostTransportAudition) {
261 non_realtime_set_audition ();
264 g_atomic_int_dec_and_test (&butler_should_do_transport_work);
268 Session::non_realtime_set_speed ()
270 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
272 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
273 (*i)->non_realtime_set_speed ();
278 Session::non_realtime_overwrite (int on_entry, bool& finished)
280 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
282 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
283 if ((*i)->pending_overwrite) {
284 (*i)->overwrite_existing_buffers ();
286 if (on_entry != g_atomic_int_get (&butler_should_do_transport_work)) {
295 Session::non_realtime_locate ()
297 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
299 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
300 (*i)->non_realtime_locate (_transport_frame);
306 Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
316 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
318 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
319 if ((*i)->get_captured_frames () != 0) {
325 /* stop and locate are merged here because they share a lot of common stuff */
328 now = localtime (&xnow);
331 auditioner->cancel_audition ();
335 cumulative_rf_motion = 0;
339 begin_reversible_command ("capture");
341 Location* loc = _locations.end_location();
342 bool change_end = false;
344 if (_transport_frame < loc->end()) {
346 /* stopped recording before current end */
348 if (_end_location_is_free) {
350 /* first capture for this session, move end back to where we are */
355 } else if (_transport_frame > loc->end()) {
357 /* stopped recording after the current end, extend it */
363 XMLNode &before = loc->get_state();
364 loc->set_end(_transport_frame);
365 XMLNode &after = loc->get_state();
366 add_command (new MementoCommand<Location>(*loc, &before, &after));
369 _end_location_is_free = false;
370 _have_captured = true;
373 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
374 (*i)->transport_stopped (*now, xnow, abort);
377 boost::shared_ptr<RouteList> r = routes.reader ();
379 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
380 if (!(*i)->is_hidden()) {
381 (*i)->set_pending_declick (0);
386 commit_reversible_command ();
389 if (_engine.running()) {
390 update_latency_compensation (true, abort);
393 bool const auto_return_enabled =
394 (Config->get_slave_source() == None && Config->get_auto_return());
396 if (auto_return_enabled ||
397 (post_transport_work & PostTransportLocate) ||
398 (_requested_return_frame >= 0) ||
401 if (pending_locate_flush) {
402 flush_all_inserts ();
405 if ((auto_return_enabled || synced_to_jack() || _requested_return_frame >= 0) &&
406 !(post_transport_work & PostTransportLocate)) {
408 bool do_locate = false;
410 if (_requested_return_frame >= 0) {
411 _transport_frame = _requested_return_frame;
412 _requested_return_frame = -1;
415 _transport_frame = _last_roll_location;
418 if (synced_to_jack() && !play_loop) {
423 // cerr << "non-realtimestop: transport locate to " << _transport_frame << endl;
424 _engine.transport_locate (_transport_frame);
428 #ifndef LEAVE_TRANSPORT_UNADJUSTED
432 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
433 if (!(*i)->hidden()) {
434 (*i)->non_realtime_locate (_transport_frame);
436 if (on_entry != g_atomic_int_get (&butler_should_do_transport_work)) {
438 /* we will be back */
443 #ifdef LEAVE_TRANSPORT_UNADJUSTED
449 send_full_time_code (0);
450 deliver_mmc (MIDI::MachineControl::cmdStop, 0);
451 deliver_mmc (MIDI::MachineControl::cmdLocate, _transport_frame);
455 /* XXX its a little odd that we're doing this here
456 when realtime_stop(), which has already executed,
458 JLC - so let's not because it seems unnecessary and breaks loop record
461 if (!Config->get_latched_record_enable()) {
462 g_atomic_int_set (&_record_status, Disabled);
464 g_atomic_int_set (&_record_status, Enabled);
466 RecordStateChanged (); /* emit signal */
470 if ((post_transport_work & PostTransportLocate) && get_record_enabled()) {
471 /* capture start has been changed, so save pending state */
472 save_state ("", true);
476 /* always try to get rid of this */
478 remove_pending_capture_state ();
480 /* save the current state of things if appropriate */
482 if (did_record && !saved) {
483 save_state (_current_snapshot_name);
486 if (post_transport_work & PostTransportDuration) {
487 DurationChanged (); /* EMIT SIGNAL */
490 if (post_transport_work & PostTransportStop) {
493 /* do not turn off autoloop on stop */
497 nframes_t tf = _transport_frame;
499 PositionChanged (tf); /* EMIT SIGNAL */
500 TransportStateChange (); /* EMIT SIGNAL */
502 /* and start it up again if relevant */
504 if ((post_transport_work & PostTransportLocate) && Config->get_slave_source() == None && pending_locate_roll) {
505 request_transport_speed (1.0);
506 pending_locate_roll = false;
511 Session::check_declick_out ()
513 bool locate_required = transport_sub_state & PendingLocate;
515 /* this is called after a process() iteration. if PendingDeclickOut was set,
516 it means that we were waiting to declick the output (which has just been
517 done) before doing something else. this is where we do that "something else".
519 note: called from the audio thread.
522 if (transport_sub_state & PendingDeclickOut) {
524 if (locate_required) {
525 start_locate (pending_locate_frame, pending_locate_roll, pending_locate_flush);
526 transport_sub_state &= ~(PendingDeclickOut|PendingLocate);
528 stop_transport (pending_abort);
529 transport_sub_state &= ~(PendingDeclickOut|PendingLocate);
535 Session::set_play_loop (bool yn)
537 /* Called from event-handling context */
539 if ((actively_recording() && yn) || _locations.auto_loop_location() == 0) {
545 if (yn && Config->get_seamless_loop() && synced_to_jack()) {
546 warning << _("Seamless looping cannot be supported while Ardour is using JACK transport.\n"
547 "Recommend changing the configured options")
553 if ((play_loop = yn)) {
558 if ((loc = _locations.auto_loop_location()) != 0) {
560 if (Config->get_seamless_loop()) {
561 // set all diskstreams to use internal looping
562 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
563 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
564 if (!(*i)->hidden()) {
565 (*i)->set_loop (loc);
570 // set all diskstreams to NOT use internal looping
571 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
572 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
573 if (!(*i)->hidden()) {
579 /* stick in the loop event */
581 Event* event = new Event (Event::AutoLoop, Event::Replace, loc->end(), loc->start(), 0.0f);
584 /* locate to start of loop and roll if current pos is outside of the loop range */
585 if (_transport_frame < loc->start() || _transport_frame > loc->end()) {
586 event = new Event (Event::LocateRoll, Event::Add, Event::Immediate, loc->start(), 0, !synced_to_jack());
590 // locate to current position (+ 1 to force reload)
591 event = new Event (Event::LocateRoll, Event::Add, Event::Immediate, _transport_frame + 1, 0, !synced_to_jack());
599 clear_events (Event::AutoLoop);
601 // set all diskstreams to NOT use internal looping
602 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
603 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
604 if (!(*i)->hidden()) {
613 Session::flush_all_inserts ()
615 boost::shared_ptr<RouteList> r = routes.reader ();
617 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
618 (*i)->flush_processors ();
623 Session::start_locate (nframes_t target_frame, bool with_roll, bool with_flush, bool with_loop)
625 if (synced_to_jack()) {
630 _slave->speed_and_position (sp, pos);
632 if (target_frame != pos) {
634 /* tell JACK to change transport position, and we will
635 follow along later in ::follow_slave()
638 _engine.transport_locate (target_frame);
640 if (sp != 1.0f && with_roll) {
641 _engine.transport_start ();
648 locate (target_frame, with_roll, with_flush, with_loop);
653 Session::micro_locate (nframes_t distance)
655 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
657 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
658 if (!(*i)->can_internal_playback_seek (distance)) {
663 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
664 (*i)->internal_playback_seek (distance);
667 _transport_frame += distance;
672 Session::locate (nframes_t target_frame, bool with_roll, bool with_flush, bool with_loop)
674 if (actively_recording() && !with_loop) {
678 if (_transport_frame == target_frame && !loop_changing && !with_loop) {
680 set_transport_speed (1.0, false);
682 loop_changing = false;
687 // [DR] FIXME: find out exactly where this should go below
688 _transport_frame = target_frame;
689 smpte_time(_transport_frame, transmitting_smpte_time);
690 outbound_mtc_smpte_frame = _transport_frame;
691 next_quarter_frame_to_send = 0;
693 if (_transport_speed && (!with_loop || loop_changing)) {
694 /* schedule a declick. we'll be called again when its done */
696 if (!(transport_sub_state & PendingDeclickOut)) {
697 transport_sub_state |= (PendingDeclickOut|PendingLocate);
698 pending_locate_frame = target_frame;
699 pending_locate_roll = with_roll;
700 pending_locate_flush = with_flush;
705 if (transport_rolling() && (!auto_play_legal || !Config->get_auto_play()) && !with_roll && !(synced_to_jack() && play_loop)) {
706 realtime_stop (false);
709 if ( !with_loop || loop_changing) {
711 post_transport_work = PostTransportWork (post_transport_work | PostTransportLocate);
714 post_transport_work = PostTransportWork (post_transport_work | PostTransportRoll);
717 schedule_butler_transport_work ();
721 /* this is functionally what clear_clicks() does but with a tentative lock */
723 Glib::RWLock::WriterLock clickm (click_lock, Glib::TRY_LOCK);
725 if (clickm.locked()) {
727 for (Clicks::iterator i = clicks.begin(); i != clicks.end(); ++i) {
736 /* switch from input if we're going to roll */
737 if (Config->get_monitoring_model() == HardwareMonitoring) {
739 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
741 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
742 if ((*i)->record_enabled ()) {
743 //cerr << "switching from input" << __FILE__ << __LINE__ << endl << endl;
744 (*i)->monitor_input (!Config->get_auto_input());
749 /* otherwise we're going to stop, so do the opposite */
750 if (Config->get_monitoring_model() == HardwareMonitoring) {
751 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
753 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
754 if ((*i)->record_enabled ()) {
755 //cerr << "switching to input" << __FILE__ << __LINE__ << endl << endl;
756 (*i)->monitor_input (true);
762 /* cancel looped playback if transport pos outside of loop range */
764 Location* al = _locations.auto_loop_location();
766 if (al && (_transport_frame < al->start() || _transport_frame > al->end())) {
767 // cancel looping directly, this is called from event handling context
768 set_play_loop (false);
770 else if (al && _transport_frame == al->start()) {
772 // this is only necessary for seamless looping
774 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
776 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
777 if ((*i)->record_enabled ()) {
778 // tell it we've looped, so it can deal with the record state
779 (*i)->transport_looped(_transport_frame);
784 TransportLooped(); // EMIT SIGNAL
788 loop_changing = false;
790 _send_smpte_update = true;
793 /** Set the transport speed.
794 * @param speed New speed
798 Session::set_transport_speed (double speed, bool abort)
800 if (_transport_speed == speed) {
804 target_phi = (uint64_t) (0x1000000 * fabs(speed));
807 speed = min (8.0, speed);
808 } else if (speed < 0) {
809 speed = max (-8.0, speed);
812 if (transport_rolling() && speed == 0.0) {
814 /* we are rolling and we want to stop */
816 if (Config->get_monitoring_model() == HardwareMonitoring)
818 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
820 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
821 if ((*i)->record_enabled ()) {
822 //cerr << "switching to input" << __FILE__ << __LINE__ << endl << endl;
823 (*i)->monitor_input (true);
828 if (synced_to_jack ()) {
829 _engine.transport_stop ();
831 stop_transport (abort);
834 } else if (transport_stopped() && speed == 1.0) {
836 /* we are stopped and we want to start rolling at speed 1 */
838 if (!get_record_enabled() && Config->get_stop_at_session_end() && _transport_frame >= current_end_frame()) {
842 if (Config->get_monitoring_model() == HardwareMonitoring) {
844 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
846 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
847 if (Config->get_auto_input() && (*i)->record_enabled ()) {
848 //cerr << "switching from input" << __FILE__ << __LINE__ << endl << endl;
849 (*i)->monitor_input (false);
854 if (synced_to_jack()) {
855 _engine.transport_start ();
862 if (!get_record_enabled() && Config->get_stop_at_session_end() && _transport_frame >= current_end_frame()) {
866 if ((synced_to_jack()) && speed != 0.0 && speed != 1.0) {
867 warning << _("Global varispeed cannot be supported while Ardour is connected to JACK transport control")
872 if (actively_recording()) {
876 if (speed > 0.0 && _transport_frame == current_end_frame()) {
880 if (speed < 0.0 && _transport_frame == 0) {
886 /* if we are reversing relative to the current speed, or relative to the speed
887 before the last stop, then we have to do extra work.
890 if ((_transport_speed && speed * _transport_speed < 0.0) || (_last_transport_speed * speed < 0.0) || (_last_transport_speed == 0.0f && speed < 0.0f)) {
891 post_transport_work = PostTransportWork (post_transport_work | PostTransportReverse);
894 _last_transport_speed = _transport_speed;
895 _transport_speed = speed;
897 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
898 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
899 if ((*i)->realtime_set_speed ((*i)->speed(), true)) {
900 post_transport_work = PostTransportWork (post_transport_work | PostTransportSpeed);
904 if (post_transport_work & (PostTransportSpeed|PostTransportReverse)) {
905 schedule_butler_transport_work ();
911 /** Stop the transport. */
913 Session::stop_transport (bool abort)
915 if (_transport_speed == 0.0f) {
919 if (actively_recording() && !(transport_sub_state & StopPendingCapture) &&
920 _worst_output_latency > current_block_size)
923 /* we need to capture the audio that has still not yet been received by the system
924 at the time the stop is requested, so we have to roll past that time.
926 we want to declick before stopping, so schedule the autostop for one
927 block before the actual end. we'll declick in the subsequent block,
928 and then we'll really be stopped.
931 Event *ev = new Event (Event::StopOnce, Event::Replace,
932 _transport_frame + _worst_output_latency - current_block_size,
936 transport_sub_state |= StopPendingCapture;
937 pending_abort = abort;
942 if ((transport_sub_state & PendingDeclickOut) == 0) {
943 transport_sub_state |= PendingDeclickOut;
944 /* we'll be called again after the declick */
945 pending_abort = abort;
949 realtime_stop (abort);
950 schedule_butler_transport_work ();
954 Session::start_transport ()
956 _last_roll_location = _transport_frame;
959 /* if record status is Enabled, move it to Recording. if its
960 already Recording, move it to Disabled.
963 switch (record_status()) {
965 if (!Config->get_punch_in()) {
972 disable_record (false);
980 transport_sub_state |= PendingDeclickIn;
982 _transport_speed = 1.0;
983 target_phi = 0x1000000; // speed = 1
987 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
988 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
989 (*i)->realtime_set_speed ((*i)->speed(), true);
992 deliver_mmc(MIDI::MachineControl::cmdDeferredPlay, _transport_frame);
994 TransportStateChange (); /* EMIT SIGNAL */
997 /** Do any transport work in the audio thread that needs to be done after the
998 * transport thread is finished. Audio thread, realtime safe.
1001 Session::post_transport ()
1003 if (post_transport_work & PostTransportAudition) {
1004 if (auditioner && auditioner->active()) {
1005 process_function = &Session::process_audition;
1007 process_function = &Session::process_with_events;
1011 if (post_transport_work & PostTransportStop) {
1013 transport_sub_state = 0;
1016 if (post_transport_work & PostTransportLocate) {
1018 if (((Config->get_slave_source() == None && (auto_play_legal && Config->get_auto_play())) && !_exporting) || (post_transport_work & PostTransportRoll)) {
1022 transport_sub_state = 0;
1028 post_transport_work = PostTransportWork (0);
1032 Session::reset_rf_scale (nframes_t motion)
1034 cumulative_rf_motion += motion;
1036 if (cumulative_rf_motion < 4 * _current_frame_rate) {
1038 } else if (cumulative_rf_motion < 8 * _current_frame_rate) {
1040 } else if (cumulative_rf_motion < 16 * _current_frame_rate) {
1052 Session::set_slave_source (SlaveSource src)
1054 bool reverse = false;
1055 bool non_rt_required = false;
1057 if (_transport_speed) {
1058 error << _("please stop the transport before adjusting slave settings") << endmsg;
1062 // if (src == JACK && Config->get_jack_time_master()) {
1069 if (_transport_speed < 0.0) {
1081 _slave = new MTC_Slave (*this, *_mtc_port);
1084 catch (failed_constructor& err) {
1089 error << _("No MTC port defined: MTC slaving is impossible.") << endmsg;
1095 if (_midi_clock_port) {
1097 _slave = new MIDIClock_Slave (*this, *_midi_clock_port, 24);
1100 catch (failed_constructor& err) {
1105 error << _("No MIDI Clock port defined: MIDI Clock slaving is impossible.") << endmsg;
1111 _slave = new JACK_Slave (_engine.jack());
1116 Config->set_slave_source (src);
1118 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
1119 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
1120 if (!(*i)->hidden()) {
1121 if ((*i)->realtime_set_speed ((*i)->speed(), true)) {
1122 non_rt_required = true;
1124 (*i)->set_slaved (_slave);
1129 reverse_diskstream_buffers ();
1132 if (non_rt_required) {
1133 post_transport_work = PostTransportWork (post_transport_work | PostTransportSpeed);
1134 schedule_butler_transport_work ();
1141 Session::reverse_diskstream_buffers ()
1143 post_transport_work = PostTransportWork (post_transport_work | PostTransportReverse);
1144 schedule_butler_transport_work ();
1148 Session::set_diskstream_speed (Diskstream* stream, double speed)
1150 if (stream->realtime_set_speed (speed, false)) {
1151 post_transport_work = PostTransportWork (post_transport_work | PostTransportSpeed);
1152 schedule_butler_transport_work ();
1158 Session::set_audio_range (list<AudioRange>& range)
1160 Event *ev = new Event (Event::SetAudioRange, Event::Add, Event::Immediate, 0, 0.0f);
1161 ev->audio_range = range;
1166 Session::request_play_range (bool yn)
1168 Event* ev = new Event (Event::SetPlayRange, Event::Add, Event::Immediate, 0, 0.0f, yn);
1173 Session::set_play_range (bool yn)
1175 /* Called from event-processing context */
1177 if (_play_range != yn) {
1182 /* stop transport */
1183 Event* ev = new Event (Event::SetTransportSpeed, Event::Add, Event::Immediate, 0, 0.0f, false);
1190 Session::setup_auto_play ()
1192 /* Called from event-processing context */
1196 _clear_event_type (Event::RangeStop);
1197 _clear_event_type (Event::RangeLocate);
1203 list<AudioRange>::size_type sz = current_audio_range.size();
1207 list<AudioRange>::iterator i = current_audio_range.begin();
1208 list<AudioRange>::iterator next;
1210 while (i != current_audio_range.end()) {
1215 /* locating/stopping is subject to delays for declicking.
1218 nframes_t requested_frame = (*i).end;
1220 if (requested_frame > current_block_size) {
1221 requested_frame -= current_block_size;
1223 requested_frame = 0;
1226 if (next == current_audio_range.end()) {
1227 ev = new Event (Event::RangeStop, Event::Add, requested_frame, 0, 0.0f);
1229 ev = new Event (Event::RangeLocate, Event::Add, requested_frame, (*next).start, 0.0f);
1237 } else if (sz == 1) {
1239 ev = new Event (Event::RangeStop, Event::Add, current_audio_range.front().end, 0, 0.0f);
1244 /* now start rolling at the right place */
1246 ev = new Event (Event::LocateRoll, Event::Add, Event::Immediate, current_audio_range.front().start, 0.0f, false);
1251 Session::request_roll_at_and_return (nframes_t start, nframes_t return_to)
1253 Event *ev = new Event (Event::LocateRollLocate, Event::Add, Event::Immediate, return_to, 1.0);
1254 ev->target2_frame = start;
1259 Session::request_bounded_roll (nframes_t start, nframes_t end)
1262 Event *ev = new Event (Event::StopOnce, Event::Replace, end, Event::Immediate, 0.0);
1264 request_locate (start, true);
1268 Session::engine_halted ()
1272 /* there will be no more calls to process(), so
1273 we'd better clean up for ourselves, right now.
1275 but first, make sure the butler is out of
1279 g_atomic_int_set (&butler_should_do_transport_work, 0);
1280 post_transport_work = PostTransportWork (0);
1283 realtime_stop (false);
1284 non_realtime_stop (false, 0, ignored);
1285 transport_sub_state = 0;
1287 TransportStateChange (); /* EMIT SIGNAL */
1292 Session::xrun_recovery ()
1294 Xrun (transport_frame()); //EMIT SIGNAL
1296 if (Config->get_stop_recording_on_xrun() && actively_recording()) {
1298 /* it didn't actually halt, but we need
1299 to handle things in the same way.
1307 Session::update_latency_compensation (bool with_stop, bool abort)
1309 bool update_jack = false;
1311 if (_state_of_the_state & Deletion) {
1315 _worst_track_latency = 0;
1317 #undef DEBUG_LATENCY
1318 #ifdef DEBUG_LATENCY
1319 cerr << "\n---------------------------------\nUPDATE LATENCY\n";
1322 boost::shared_ptr<RouteList> r = routes.reader ();
1324 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
1327 (*i)->handle_transport_stopped (abort, (post_transport_work & PostTransportLocate),
1328 (!(post_transport_work & PostTransportLocate) || pending_locate_flush));
1331 nframes_t old_latency = (*i)->signal_latency ();
1332 nframes_t track_latency = (*i)->update_total_latency ();
1334 if (old_latency != track_latency) {
1335 (*i)->update_port_total_latencies ();
1339 if (!(*i)->is_hidden() && ((*i)->active())) {
1340 _worst_track_latency = max (_worst_track_latency, track_latency);
1345 _engine.update_total_latencies ();
1348 #ifdef DEBUG_LATENCY
1349 cerr << "\tworst was " << _worst_track_latency << endl;
1352 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
1353 (*i)->set_latency_delay (_worst_track_latency);
1356 set_worst_io_latencies ();
1358 /* reflect any changes in latencies into capture offsets
1361 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
1363 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
1364 (*i)->set_capture_offset ();
1369 Session::allow_auto_play (bool yn)
1371 auto_play_legal = yn;
1375 Session::reset_jack_connection (jack_client_t* jack)
1379 if (_slave && ((js = dynamic_cast<JACK_Slave*> (_slave)) != 0)) {
1380 js->reset_client (jack);