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 ();
646 /* XXX: not sure if this should be emitted here; perhaps it should happen
647 when the slave is actually followed */
648 Located (); /* EMIT SIGNAL */
652 locate (target_frame, with_roll, with_flush, with_loop);
657 Session::micro_locate (nframes_t distance)
659 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
661 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
662 if (!(*i)->can_internal_playback_seek (distance)) {
667 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
668 (*i)->internal_playback_seek (distance);
671 _transport_frame += distance;
676 Session::locate (nframes_t target_frame, bool with_roll, bool with_flush, bool with_loop)
678 if (actively_recording() && !with_loop) {
682 if (_transport_frame == target_frame && !loop_changing && !with_loop) {
684 set_transport_speed (1.0, false);
686 loop_changing = false;
691 // [DR] FIXME: find out exactly where this should go below
692 _transport_frame = target_frame;
693 smpte_time(_transport_frame, transmitting_smpte_time);
694 outbound_mtc_smpte_frame = _transport_frame;
695 next_quarter_frame_to_send = 0;
697 if (_transport_speed && (!with_loop || loop_changing)) {
698 /* schedule a declick. we'll be called again when its done */
700 if (!(transport_sub_state & PendingDeclickOut)) {
701 transport_sub_state |= (PendingDeclickOut|PendingLocate);
702 pending_locate_frame = target_frame;
703 pending_locate_roll = with_roll;
704 pending_locate_flush = with_flush;
709 if (transport_rolling() && (!auto_play_legal || !Config->get_auto_play()) && !with_roll && !(synced_to_jack() && play_loop)) {
710 realtime_stop (false);
713 if ( !with_loop || loop_changing) {
715 post_transport_work = PostTransportWork (post_transport_work | PostTransportLocate);
718 post_transport_work = PostTransportWork (post_transport_work | PostTransportRoll);
721 schedule_butler_transport_work ();
725 /* this is functionally what clear_clicks() does but with a tentative lock */
727 Glib::RWLock::WriterLock clickm (click_lock, Glib::TRY_LOCK);
729 if (clickm.locked()) {
731 for (Clicks::iterator i = clicks.begin(); i != clicks.end(); ++i) {
740 /* switch from input if we're going to roll */
741 if (Config->get_monitoring_model() == HardwareMonitoring) {
743 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
745 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
746 if ((*i)->record_enabled ()) {
747 //cerr << "switching from input" << __FILE__ << __LINE__ << endl << endl;
748 (*i)->monitor_input (!Config->get_auto_input());
753 /* otherwise we're going to stop, so do the opposite */
754 if (Config->get_monitoring_model() == HardwareMonitoring) {
755 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
757 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
758 if ((*i)->record_enabled ()) {
759 //cerr << "switching to input" << __FILE__ << __LINE__ << endl << endl;
760 (*i)->monitor_input (true);
766 /* cancel looped playback if transport pos outside of loop range */
768 Location* al = _locations.auto_loop_location();
770 if (al && (_transport_frame < al->start() || _transport_frame > al->end())) {
771 // cancel looping directly, this is called from event handling context
772 set_play_loop (false);
774 else if (al && _transport_frame == al->start()) {
776 // this is only necessary for seamless looping
778 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
780 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
781 if ((*i)->record_enabled ()) {
782 // tell it we've looped, so it can deal with the record state
783 (*i)->transport_looped(_transport_frame);
788 TransportLooped(); // EMIT SIGNAL
792 loop_changing = false;
794 _send_smpte_update = true;
797 /** Set the transport speed.
798 * @param speed New speed
802 Session::set_transport_speed (double speed, bool abort)
804 if (_transport_speed == speed) {
808 target_phi = (uint64_t) (0x1000000 * fabs(speed));
811 speed = min (8.0, speed);
812 } else if (speed < 0) {
813 speed = max (-8.0, speed);
816 if (transport_rolling() && speed == 0.0) {
818 /* we are rolling and we want to stop */
820 if (Config->get_monitoring_model() == HardwareMonitoring)
822 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
824 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
825 if ((*i)->record_enabled ()) {
826 //cerr << "switching to input" << __FILE__ << __LINE__ << endl << endl;
827 (*i)->monitor_input (true);
832 if (synced_to_jack ()) {
833 _engine.transport_stop ();
835 stop_transport (abort);
838 } else if (transport_stopped() && speed == 1.0) {
840 /* we are stopped and we want to start rolling at speed 1 */
842 if (!get_record_enabled() && Config->get_stop_at_session_end() && _transport_frame >= current_end_frame()) {
846 if (Config->get_monitoring_model() == HardwareMonitoring) {
848 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
850 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
851 if (Config->get_auto_input() && (*i)->record_enabled ()) {
852 //cerr << "switching from input" << __FILE__ << __LINE__ << endl << endl;
853 (*i)->monitor_input (false);
858 if (synced_to_jack()) {
859 _engine.transport_start ();
866 if (!get_record_enabled() && Config->get_stop_at_session_end() && _transport_frame >= current_end_frame()) {
870 if ((synced_to_jack()) && speed != 0.0 && speed != 1.0) {
871 warning << _("Global varispeed cannot be supported while Ardour is connected to JACK transport control")
876 if (actively_recording()) {
880 if (speed > 0.0 && _transport_frame == current_end_frame()) {
884 if (speed < 0.0 && _transport_frame == 0) {
890 /* if we are reversing relative to the current speed, or relative to the speed
891 before the last stop, then we have to do extra work.
894 if ((_transport_speed && speed * _transport_speed < 0.0) || (_last_transport_speed * speed < 0.0) || (_last_transport_speed == 0.0f && speed < 0.0f)) {
895 post_transport_work = PostTransportWork (post_transport_work | PostTransportReverse);
898 _last_transport_speed = _transport_speed;
899 _transport_speed = speed;
901 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
902 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
903 if ((*i)->realtime_set_speed ((*i)->speed(), true)) {
904 post_transport_work = PostTransportWork (post_transport_work | PostTransportSpeed);
908 if (post_transport_work & (PostTransportSpeed|PostTransportReverse)) {
909 schedule_butler_transport_work ();
915 /** Stop the transport. */
917 Session::stop_transport (bool abort)
919 if (_transport_speed == 0.0f) {
923 if (actively_recording() && !(transport_sub_state & StopPendingCapture) &&
924 _worst_output_latency > current_block_size)
927 /* we need to capture the audio that has still not yet been received by the system
928 at the time the stop is requested, so we have to roll past that time.
930 we want to declick before stopping, so schedule the autostop for one
931 block before the actual end. we'll declick in the subsequent block,
932 and then we'll really be stopped.
935 Event *ev = new Event (Event::StopOnce, Event::Replace,
936 _transport_frame + _worst_output_latency - current_block_size,
940 transport_sub_state |= StopPendingCapture;
941 pending_abort = abort;
946 if ((transport_sub_state & PendingDeclickOut) == 0) {
947 transport_sub_state |= PendingDeclickOut;
948 /* we'll be called again after the declick */
949 pending_abort = abort;
953 realtime_stop (abort);
954 schedule_butler_transport_work ();
958 Session::start_transport ()
960 _last_roll_location = _transport_frame;
963 /* if record status is Enabled, move it to Recording. if its
964 already Recording, move it to Disabled.
967 switch (record_status()) {
969 if (!Config->get_punch_in()) {
976 disable_record (false);
984 transport_sub_state |= PendingDeclickIn;
986 _transport_speed = 1.0;
987 target_phi = 0x1000000; // speed = 1
991 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
992 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
993 (*i)->realtime_set_speed ((*i)->speed(), true);
996 deliver_mmc(MIDI::MachineControl::cmdDeferredPlay, _transport_frame);
998 TransportStateChange (); /* EMIT SIGNAL */
1001 /** Do any transport work in the audio thread that needs to be done after the
1002 * transport thread is finished. Audio thread, realtime safe.
1005 Session::post_transport ()
1007 if (post_transport_work & PostTransportAudition) {
1008 if (auditioner && auditioner->active()) {
1009 process_function = &Session::process_audition;
1011 process_function = &Session::process_with_events;
1015 if (post_transport_work & PostTransportStop) {
1017 transport_sub_state = 0;
1020 if (post_transport_work & PostTransportLocate) {
1022 if (((Config->get_slave_source() == None && (auto_play_legal && Config->get_auto_play())) && !_exporting) || (post_transport_work & PostTransportRoll)) {
1026 transport_sub_state = 0;
1032 post_transport_work = PostTransportWork (0);
1036 Session::reset_rf_scale (nframes_t motion)
1038 cumulative_rf_motion += motion;
1040 if (cumulative_rf_motion < 4 * _current_frame_rate) {
1042 } else if (cumulative_rf_motion < 8 * _current_frame_rate) {
1044 } else if (cumulative_rf_motion < 16 * _current_frame_rate) {
1056 Session::set_slave_source (SlaveSource src)
1058 bool reverse = false;
1059 bool non_rt_required = false;
1061 if (_transport_speed) {
1062 error << _("please stop the transport before adjusting slave settings") << endmsg;
1066 // if (src == JACK && Config->get_jack_time_master()) {
1073 if (_transport_speed < 0.0) {
1085 _slave = new MTC_Slave (*this, *_mtc_port);
1088 catch (failed_constructor& err) {
1093 error << _("No MTC port defined: MTC slaving is impossible.") << endmsg;
1099 if (_midi_clock_port) {
1101 _slave = new MIDIClock_Slave (*this, *_midi_clock_port, 24);
1104 catch (failed_constructor& err) {
1109 error << _("No MIDI Clock port defined: MIDI Clock slaving is impossible.") << endmsg;
1115 _slave = new JACK_Slave (_engine.jack());
1120 Config->set_slave_source (src);
1122 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
1123 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
1124 if (!(*i)->hidden()) {
1125 if ((*i)->realtime_set_speed ((*i)->speed(), true)) {
1126 non_rt_required = true;
1128 (*i)->set_slaved (_slave);
1133 reverse_diskstream_buffers ();
1136 if (non_rt_required) {
1137 post_transport_work = PostTransportWork (post_transport_work | PostTransportSpeed);
1138 schedule_butler_transport_work ();
1145 Session::reverse_diskstream_buffers ()
1147 post_transport_work = PostTransportWork (post_transport_work | PostTransportReverse);
1148 schedule_butler_transport_work ();
1152 Session::set_diskstream_speed (Diskstream* stream, double speed)
1154 if (stream->realtime_set_speed (speed, false)) {
1155 post_transport_work = PostTransportWork (post_transport_work | PostTransportSpeed);
1156 schedule_butler_transport_work ();
1162 Session::set_audio_range (list<AudioRange>& range)
1164 Event *ev = new Event (Event::SetAudioRange, Event::Add, Event::Immediate, 0, 0.0f);
1165 ev->audio_range = range;
1170 Session::request_play_range (bool yn)
1172 Event* ev = new Event (Event::SetPlayRange, Event::Add, Event::Immediate, 0, 0.0f, yn);
1177 Session::set_play_range (bool yn)
1179 /* Called from event-processing context */
1181 if (_play_range != yn) {
1186 /* stop transport */
1187 Event* ev = new Event (Event::SetTransportSpeed, Event::Add, Event::Immediate, 0, 0.0f, false);
1194 Session::setup_auto_play ()
1196 /* Called from event-processing context */
1200 _clear_event_type (Event::RangeStop);
1201 _clear_event_type (Event::RangeLocate);
1207 list<AudioRange>::size_type sz = current_audio_range.size();
1211 list<AudioRange>::iterator i = current_audio_range.begin();
1212 list<AudioRange>::iterator next;
1214 while (i != current_audio_range.end()) {
1219 /* locating/stopping is subject to delays for declicking.
1222 nframes_t requested_frame = (*i).end;
1224 if (requested_frame > current_block_size) {
1225 requested_frame -= current_block_size;
1227 requested_frame = 0;
1230 if (next == current_audio_range.end()) {
1231 ev = new Event (Event::RangeStop, Event::Add, requested_frame, 0, 0.0f);
1233 ev = new Event (Event::RangeLocate, Event::Add, requested_frame, (*next).start, 0.0f);
1241 } else if (sz == 1) {
1243 ev = new Event (Event::RangeStop, Event::Add, current_audio_range.front().end, 0, 0.0f);
1248 /* now start rolling at the right place */
1250 ev = new Event (Event::LocateRoll, Event::Add, Event::Immediate, current_audio_range.front().start, 0.0f, false);
1255 Session::request_roll_at_and_return (nframes_t start, nframes_t return_to)
1257 Event *ev = new Event (Event::LocateRollLocate, Event::Add, Event::Immediate, return_to, 1.0);
1258 ev->target2_frame = start;
1263 Session::request_bounded_roll (nframes_t start, nframes_t end)
1266 Event *ev = new Event (Event::StopOnce, Event::Replace, end, Event::Immediate, 0.0);
1268 request_locate (start, true);
1272 Session::engine_halted ()
1276 /* there will be no more calls to process(), so
1277 we'd better clean up for ourselves, right now.
1279 but first, make sure the butler is out of
1283 g_atomic_int_set (&butler_should_do_transport_work, 0);
1284 post_transport_work = PostTransportWork (0);
1287 realtime_stop (false);
1288 non_realtime_stop (false, 0, ignored);
1289 transport_sub_state = 0;
1291 TransportStateChange (); /* EMIT SIGNAL */
1296 Session::xrun_recovery ()
1298 Xrun (transport_frame()); //EMIT SIGNAL
1300 if (Config->get_stop_recording_on_xrun() && actively_recording()) {
1302 /* it didn't actually halt, but we need
1303 to handle things in the same way.
1311 Session::update_latency_compensation (bool with_stop, bool abort)
1313 bool update_jack = false;
1315 if (_state_of_the_state & Deletion) {
1319 _worst_track_latency = 0;
1321 #undef DEBUG_LATENCY
1322 #ifdef DEBUG_LATENCY
1323 cerr << "\n---------------------------------\nUPDATE LATENCY\n";
1326 boost::shared_ptr<RouteList> r = routes.reader ();
1328 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
1331 (*i)->handle_transport_stopped (abort, (post_transport_work & PostTransportLocate),
1332 (!(post_transport_work & PostTransportLocate) || pending_locate_flush));
1335 nframes_t old_latency = (*i)->signal_latency ();
1336 nframes_t track_latency = (*i)->update_total_latency ();
1338 if (old_latency != track_latency) {
1339 (*i)->update_port_total_latencies ();
1343 if (!(*i)->is_hidden() && ((*i)->active())) {
1344 _worst_track_latency = max (_worst_track_latency, track_latency);
1349 _engine.update_total_latencies ();
1352 #ifdef DEBUG_LATENCY
1353 cerr << "\tworst was " << _worst_track_latency << endl;
1356 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
1357 (*i)->set_latency_delay (_worst_track_latency);
1360 set_worst_io_latencies ();
1362 /* reflect any changes in latencies into capture offsets
1365 boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
1367 for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
1368 (*i)->set_capture_offset ();
1373 Session::allow_auto_play (bool yn)
1375 auto_play_legal = yn;
1379 Session::reset_jack_connection (jack_client_t* jack)
1383 if (_slave && ((js = dynamic_cast<JACK_Slave*> (_slave)) != 0)) {
1384 js->reset_client (jack);