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 (float speed)
79 Event* ev = new Event (Event::SetTransportSpeed, Event::Add, Event::Immediate, 0, speed);
84 Session::request_diskstream_speed (Diskstream& ds, float 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, _transport_frame);
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;
180 if (Config->get_use_video_sync()) {
181 waiting_for_sync_offset = true;
184 transport_sub_state = ((Config->get_slave_source() == None && Config->get_auto_return()) ? AutoReturning : 0);
188 Session::butler_transport_work ()
192 boost::shared_ptr<RouteList> r = routes.reader ();
193 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
195 int on_entry = g_atomic_int_get (&butler_should_do_transport_work);
198 if (post_transport_work & PostTransportCurveRealloc) {
199 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
200 (*i)->curve_reallocate();
204 if (post_transport_work & PostTransportInputChange) {
205 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
206 (*i)->non_realtime_input_change ();
210 if (post_transport_work & PostTransportSpeed) {
211 non_realtime_set_speed ();
214 if (post_transport_work & PostTransportReverse) {
218 cumulative_rf_motion = 0;
221 /* don't seek if locate will take care of that in non_realtime_stop() */
223 if (!(post_transport_work & PostTransportLocate)) {
225 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
226 if (!(*i)->hidden()) {
227 if ((*i)->speed() != 1.0f || (*i)->speed() != -1.0f) {
228 (*i)->seek ((nframes_t) (_transport_frame * (double) (*i)->speed()));
231 (*i)->seek (_transport_frame);
234 if (on_entry != g_atomic_int_get (&butler_should_do_transport_work)) {
235 /* new request, stop seeking, and start again */
236 g_atomic_int_dec_and_test (&butler_should_do_transport_work);
243 if (post_transport_work & PostTransportLocate) {
244 non_realtime_locate ();
247 if (post_transport_work & PostTransportStop) {
248 non_realtime_stop (post_transport_work & PostTransportAbort, on_entry, finished);
250 g_atomic_int_dec_and_test (&butler_should_do_transport_work);
255 if (post_transport_work & PostTransportOverWrite) {
256 non_realtime_overwrite (on_entry, finished);
258 g_atomic_int_dec_and_test (&butler_should_do_transport_work);
263 if (post_transport_work & PostTransportAudition) {
264 non_realtime_set_audition ();
267 g_atomic_int_dec_and_test (&butler_should_do_transport_work);
271 Session::non_realtime_set_speed ()
273 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
275 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
276 (*i)->non_realtime_set_speed ();
281 Session::non_realtime_overwrite (int on_entry, bool& finished)
283 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
285 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
286 if ((*i)->pending_overwrite) {
287 (*i)->overwrite_existing_buffers ();
289 if (on_entry != g_atomic_int_get (&butler_should_do_transport_work)) {
298 Session::non_realtime_locate ()
300 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
302 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
303 (*i)->non_realtime_locate (_transport_frame);
309 Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
319 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
321 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
322 if ((*i)->get_captured_frames () != 0) {
328 /* stop and locate are merged here because they share a lot of common stuff */
331 now = localtime (&xnow);
334 auditioner->cancel_audition ();
338 cumulative_rf_motion = 0;
342 begin_reversible_command ("capture");
344 Location* loc = _locations.end_location();
345 bool change_end = false;
347 if (_transport_frame < loc->end()) {
349 /* stopped recording before current end */
351 if (_end_location_is_free) {
353 /* first capture for this session, move end back to where we are */
358 } else if (_transport_frame > loc->end()) {
360 /* stopped recording after the current end, extend it */
366 XMLNode &before = loc->get_state();
367 loc->set_end(_transport_frame);
368 XMLNode &after = loc->get_state();
369 add_command (new MementoCommand<Location>(*loc, &before, &after));
372 _end_location_is_free = false;
373 _have_captured = true;
376 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
377 (*i)->transport_stopped (*now, xnow, abort);
380 boost::shared_ptr<RouteList> r = routes.reader ();
382 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
383 if (!(*i)->is_hidden()) {
384 (*i)->set_pending_declick (0);
389 commit_reversible_command ();
392 if (_engine.running()) {
393 update_latency_compensation (true, abort);
396 if ((Config->get_slave_source() == None && Config->get_auto_return()) ||
397 (post_transport_work & PostTransportLocate) ||
398 (_requested_return_frame >= 0) ||
401 if (pending_locate_flush) {
402 flush_all_inserts ();
405 if (((Config->get_slave_source() == None && Config->get_auto_return()) ||
407 _requested_return_frame >= 0) &&
408 !(post_transport_work & PostTransportLocate)) {
410 bool do_locate = false;
412 if (_requested_return_frame >= 0) {
413 _transport_frame = _requested_return_frame;
414 _requested_return_frame = -1;
417 _transport_frame = last_stop_frame;
418 _requested_return_frame = -1;
421 if (synced_to_jack() && !play_loop) {
426 // cerr << "non-realtimestop: transport locate to " << _transport_frame << endl;
427 _engine.transport_locate (_transport_frame);
431 #ifndef LEAVE_TRANSPORT_UNADJUSTED
435 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
436 if (!(*i)->hidden()) {
437 if ((*i)->speed() != 1.0f || (*i)->speed() != -1.0f) {
438 (*i)->seek ((nframes_t) (_transport_frame * (double) (*i)->speed()));
441 (*i)->seek (_transport_frame);
444 if (on_entry != g_atomic_int_get (&butler_should_do_transport_work)) {
446 /* we will be back */
451 #ifdef LEAVE_TRANSPORT_UNADJUSTED
455 if (_requested_return_frame < 0) {
456 last_stop_frame = _transport_frame;
458 last_stop_frame = _requested_return_frame;
459 _requested_return_frame = -1;
464 /* XXX its a little odd that we're doing this here
465 when realtime_stop(), which has already executed,
467 JLC - so let's not because it seems unnecessary and breaks loop record
470 if (!Config->get_latched_record_enable()) {
471 g_atomic_int_set (&_record_status, Disabled);
473 g_atomic_int_set (&_record_status, Enabled);
475 RecordStateChanged (); /* emit signal */
479 if ((post_transport_work & PostTransportLocate) && get_record_enabled()) {
480 /* capture start has been changed, so save pending state */
481 save_state ("", true);
485 /* always try to get rid of this */
487 remove_pending_capture_state ();
489 /* save the current state of things if appropriate */
491 if (did_record && !saved) {
492 save_state (_current_snapshot_name);
495 if (post_transport_work & PostTransportDuration) {
496 DurationChanged (); /* EMIT SIGNAL */
499 if (post_transport_work & PostTransportStop) {
502 /* do not turn off autoloop on stop */
506 nframes_t tf = _transport_frame;
508 PositionChanged (tf); /* EMIT SIGNAL */
509 TransportStateChange (); /* EMIT SIGNAL */
511 /* and start it up again if relevant */
513 if ((post_transport_work & PostTransportLocate) && Config->get_slave_source() == None && pending_locate_roll) {
514 request_transport_speed (1.0);
515 pending_locate_roll = false;
520 Session::check_declick_out ()
522 bool locate_required = transport_sub_state & PendingLocate;
524 /* this is called after a process() iteration. if PendingDeclickOut was set,
525 it means that we were waiting to declick the output (which has just been
526 done) before doing something else. this is where we do that "something else".
528 note: called from the audio thread.
531 if (transport_sub_state & PendingDeclickOut) {
533 if (locate_required) {
534 start_locate (pending_locate_frame, pending_locate_roll, pending_locate_flush);
535 transport_sub_state &= ~(PendingDeclickOut|PendingLocate);
537 stop_transport (pending_abort);
538 transport_sub_state &= ~(PendingDeclickOut|PendingLocate);
544 Session::set_play_loop (bool yn)
546 /* Called from event-handling context */
548 if ((actively_recording() && yn) || _locations.auto_loop_location() == 0) {
554 if (yn && Config->get_seamless_loop() && synced_to_jack()) {
555 warning << _("Seamless looping cannot be supported while Ardour is using JACK transport.\n"
556 "Recommend changing the configured options")
562 if ((play_loop = yn)) {
567 if ((loc = _locations.auto_loop_location()) != 0) {
569 if (Config->get_seamless_loop()) {
570 // set all diskstreams to 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()) {
574 (*i)->set_loop (loc);
579 // set all diskstreams to NOT use internal looping
580 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
581 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
582 if (!(*i)->hidden()) {
588 /* stick in the loop event */
590 Event* event = new Event (Event::AutoLoop, Event::Replace, loc->end(), loc->start(), 0.0f);
593 /* locate to start of loop and roll if current pos is outside of the loop range */
594 if (_transport_frame < loc->start() || _transport_frame > loc->end()) {
595 event = new Event (Event::LocateRoll, Event::Add, Event::Immediate, loc->start(), 0, !synced_to_jack());
599 // locate to current position (+ 1 to force reload)
600 event = new Event (Event::LocateRoll, Event::Add, Event::Immediate, _transport_frame + 1, 0, !synced_to_jack());
608 clear_events (Event::AutoLoop);
610 // set all diskstreams to NOT use internal looping
611 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
612 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
613 if (!(*i)->hidden()) {
622 Session::flush_all_inserts ()
624 boost::shared_ptr<RouteList> r = routes.reader ();
626 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
627 (*i)->flush_processors ();
632 Session::start_locate (nframes_t target_frame, bool with_roll, bool with_flush, bool with_loop)
634 if (synced_to_jack()) {
639 _slave->speed_and_position (sp, pos);
641 if (target_frame != pos) {
643 /* tell JACK to change transport position, and we will
644 follow along later in ::follow_slave()
647 _engine.transport_locate (target_frame);
649 if (sp != 1.0f && with_roll) {
650 _engine.transport_start ();
657 locate (target_frame, with_roll, with_flush, with_loop);
662 Session::locate (nframes_t target_frame, bool with_roll, bool with_flush, bool with_loop)
664 if (actively_recording() && !with_loop) {
668 if (_transport_frame == target_frame && !loop_changing && !with_loop) {
670 set_transport_speed (1.0, false);
672 loop_changing = false;
677 // [DR] FIXME: find out exactly where this should go below
678 _transport_frame = target_frame;
679 smpte_time(_transport_frame, transmitting_smpte_time);
680 outbound_mtc_smpte_frame = _transport_frame;
681 next_quarter_frame_to_send = 0;
683 if (_transport_speed && (!with_loop || loop_changing)) {
684 /* schedule a declick. we'll be called again when its done */
686 if (!(transport_sub_state & PendingDeclickOut)) {
687 transport_sub_state |= (PendingDeclickOut|PendingLocate);
688 pending_locate_frame = target_frame;
689 pending_locate_roll = with_roll;
690 pending_locate_flush = with_flush;
695 if (transport_rolling() && (!auto_play_legal || !Config->get_auto_play()) && !with_roll && !(synced_to_jack() && play_loop)) {
696 realtime_stop (false);
699 if ( !with_loop || loop_changing) {
701 post_transport_work = PostTransportWork (post_transport_work | PostTransportLocate);
704 post_transport_work = PostTransportWork (post_transport_work | PostTransportRoll);
707 schedule_butler_transport_work ();
711 /* this is functionally what clear_clicks() does but with a tentative lock */
713 Glib::RWLock::WriterLock clickm (click_lock, Glib::TRY_LOCK);
715 if (clickm.locked()) {
717 for (Clicks::iterator i = clicks.begin(); i != clicks.end(); ++i) {
726 /* switch from input if we're going to roll */
727 if (Config->get_monitoring_model() == HardwareMonitoring) {
729 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
731 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
732 if ((*i)->record_enabled ()) {
733 //cerr << "switching from input" << __FILE__ << __LINE__ << endl << endl;
734 (*i)->monitor_input (!Config->get_auto_input());
739 /* otherwise we're going to stop, so do the opposite */
740 if (Config->get_monitoring_model() == HardwareMonitoring) {
741 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
743 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
744 if ((*i)->record_enabled ()) {
745 //cerr << "switching to input" << __FILE__ << __LINE__ << endl << endl;
746 (*i)->monitor_input (true);
752 /* cancel looped playback if transport pos outside of loop range */
754 Location* al = _locations.auto_loop_location();
756 if (al && (_transport_frame < al->start() || _transport_frame > al->end())) {
757 // cancel looping directly, this is called from event handling context
758 set_play_loop (false);
760 else if (al && _transport_frame == al->start()) {
762 // this is only necessary for seamless looping
764 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
766 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
767 if ((*i)->record_enabled ()) {
768 // tell it we've looped, so it can deal with the record state
769 (*i)->transport_looped(_transport_frame);
774 TransportLooped(); // EMIT SIGNAL
778 loop_changing = false;
780 _send_smpte_update = true;
783 /** Set the transport speed.
784 * @param speed New speed
788 Session::set_transport_speed (float speed, bool abort)
790 if (_transport_speed == speed) {
795 speed = min (8.0f, speed);
796 } else if (speed < 0) {
797 speed = max (-8.0f, speed);
800 if (transport_rolling() && speed == 0.0) {
802 /* we are rolling and we want to stop */
804 if (Config->get_monitoring_model() == HardwareMonitoring)
806 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
808 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
809 if ((*i)->record_enabled ()) {
810 //cerr << "switching to input" << __FILE__ << __LINE__ << endl << endl;
811 (*i)->monitor_input (true);
816 if (synced_to_jack ()) {
817 _engine.transport_stop ();
819 stop_transport (abort);
822 } else if (transport_stopped() && speed == 1.0) {
824 /* we are stopped and we want to start rolling at speed 1 */
826 if (!get_record_enabled() && Config->get_stop_at_session_end() && _transport_frame >= current_end_frame()) {
830 if (Config->get_monitoring_model() == HardwareMonitoring) {
832 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
834 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
835 if (Config->get_auto_input() && (*i)->record_enabled ()) {
836 //cerr << "switching from input" << __FILE__ << __LINE__ << endl << endl;
837 (*i)->monitor_input (false);
842 if (synced_to_jack()) {
843 _engine.transport_start ();
850 if (!get_record_enabled() && Config->get_stop_at_session_end() && _transport_frame >= current_end_frame()) {
854 if ((synced_to_jack()) && speed != 0.0 && speed != 1.0) {
855 warning << _("Global varispeed cannot be supported while Ardour is connected to JACK transport control")
860 if (actively_recording()) {
864 if (speed > 0.0f && _transport_frame == current_end_frame()) {
868 if (speed < 0.0f && _transport_frame == 0) {
874 /* if we are reversing relative to the current speed, or relative to the speed
875 before the last stop, then we have to do extra work.
878 if ((_transport_speed && speed * _transport_speed < 0.0f) || (_last_transport_speed * speed < 0.0f) || (_last_transport_speed == 0.0f && speed < 0.0f)) {
879 post_transport_work = PostTransportWork (post_transport_work | PostTransportReverse);
882 _last_transport_speed = _transport_speed;
883 _transport_speed = speed;
885 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
886 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
887 if ((*i)->realtime_set_speed ((*i)->speed(), true)) {
888 post_transport_work = PostTransportWork (post_transport_work | PostTransportSpeed);
892 if (post_transport_work & (PostTransportSpeed|PostTransportReverse)) {
893 schedule_butler_transport_work ();
899 /** Stop the transport. */
901 Session::stop_transport (bool abort)
903 if (_transport_speed == 0.0f) {
907 if (actively_recording() && !(transport_sub_state & StopPendingCapture) &&
908 _worst_output_latency > current_block_size)
911 /* we need to capture the audio that has still not yet been received by the system
912 at the time the stop is requested, so we have to roll past that time.
914 we want to declick before stopping, so schedule the autostop for one
915 block before the actual end. we'll declick in the subsequent block,
916 and then we'll really be stopped.
919 Event *ev = new Event (Event::StopOnce, Event::Replace,
920 _transport_frame + _worst_output_latency - current_block_size,
924 transport_sub_state |= StopPendingCapture;
925 pending_abort = abort;
930 if ((transport_sub_state & PendingDeclickOut) == 0) {
931 transport_sub_state |= PendingDeclickOut;
932 /* we'll be called again after the declick */
933 pending_abort = abort;
937 realtime_stop (abort);
938 schedule_butler_transport_work ();
942 Session::start_transport ()
944 _last_roll_location = _transport_frame;
946 /* if record status is Enabled, move it to Recording. if its
947 already Recording, move it to Disabled.
950 switch (record_status()) {
952 if (!Config->get_punch_in()) {
959 disable_record (false);
967 if (!synced_to_jack() || _exporting) {
968 actually_start_transport ();
970 waiting_to_start = true;
975 Session::actually_start_transport ()
977 waiting_to_start = false;
979 transport_sub_state |= PendingDeclickIn;
980 _transport_speed = 1.0;
982 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
983 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
984 (*i)->realtime_set_speed ((*i)->speed(), true);
987 deliver_mmc(MIDI::MachineControl::cmdDeferredPlay, _transport_frame);
989 TransportStateChange (); /* EMIT SIGNAL */
992 /** Do any transport work in the audio thread that needs to be done after the
993 * transport thread is finished. Audio thread, realtime safe.
996 Session::post_transport ()
998 if (post_transport_work & PostTransportAudition) {
999 if (auditioner && auditioner->active()) {
1000 process_function = &Session::process_audition;
1002 process_function = &Session::process_with_events;
1006 if (post_transport_work & PostTransportStop) {
1008 transport_sub_state = 0;
1011 if (post_transport_work & PostTransportLocate) {
1013 if (((Config->get_slave_source() == None && (auto_play_legal && Config->get_auto_play())) && !_exporting) || (post_transport_work & PostTransportRoll)) {
1017 transport_sub_state = 0;
1023 post_transport_work = PostTransportWork (0);
1027 Session::reset_rf_scale (nframes_t motion)
1029 cumulative_rf_motion += motion;
1031 if (cumulative_rf_motion < 4 * _current_frame_rate) {
1033 } else if (cumulative_rf_motion < 8 * _current_frame_rate) {
1035 } else if (cumulative_rf_motion < 16 * _current_frame_rate) {
1047 Session::set_slave_source (SlaveSource src)
1049 bool reverse = false;
1050 bool non_rt_required = false;
1052 if (_transport_speed) {
1053 error << _("please stop the transport before adjusting slave settings") << endmsg;
1057 // if (src == JACK && Config->get_jack_time_master()) {
1066 if (_transport_speed < 0.0) {
1078 _slave = new MTC_Slave (*this, *_mtc_port);
1081 catch (failed_constructor& err) {
1086 error << _("No MTC port defined: MTC slaving is impossible.") << endmsg;
1089 _desired_transport_speed = _transport_speed;
1093 if (_midi_clock_port) {
1095 _slave = new MIDIClock_Slave (*this, *_midi_clock_port, 24);
1098 catch (failed_constructor& err) {
1103 error << _("No MIDI Clock port defined: MIDI Clock slaving is impossible.") << endmsg;
1106 _desired_transport_speed = _transport_speed;
1110 _slave = new JACK_Slave (_engine.jack());
1111 _desired_transport_speed = _transport_speed;
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, float 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 boost::shared_ptr<RouteList> r = routes.reader ();
1319 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
1322 (*i)->handle_transport_stopped (abort, (post_transport_work & PostTransportLocate),
1323 (!(post_transport_work & PostTransportLocate) || pending_locate_flush));
1326 nframes_t old_latency = (*i)->signal_latency ();
1327 nframes_t track_latency = (*i)->update_total_latency ();
1329 if (old_latency != track_latency) {
1330 (*i)->update_port_total_latencies ();
1334 if (!(*i)->is_hidden() && ((*i)->active())) {
1335 _worst_track_latency = max (_worst_track_latency, track_latency);
1340 _engine.update_total_latencies ();
1343 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
1344 (*i)->set_latency_delay (_worst_track_latency);
1347 set_worst_io_latencies ();
1349 /* reflect any changes in latencies into capture offsets
1352 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
1354 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
1355 (*i)->set_capture_offset ();
1360 Session::allow_auto_play (bool yn)
1362 auto_play_legal = yn;
1366 Session::reset_jack_connection (jack_client_t* jack)
1370 if (_slave && ((js = dynamic_cast<JACK_Slave*> (_slave)) != 0)) {
1371 js->reset_client (jack);