2 Copyright (C) 1999-2002 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.
25 #include "pbd/error.h"
26 #include "pbd/enumwriter.h"
28 #include <glibmm/threads.h>
30 #include "ardour/audioengine.h"
31 #include "ardour/auditioner.h"
32 #include "ardour/butler.h"
33 #include "ardour/cycle_timer.h"
34 #include "ardour/debug.h"
35 #include "ardour/graph.h"
36 #include "ardour/port.h"
37 #include "ardour/process_thread.h"
38 #include "ardour/session.h"
39 #include "ardour/slave.h"
40 #include "ardour/ticker.h"
41 #include "ardour/types.h"
43 #include "midi++/mmc.h"
47 using namespace ARDOUR;
51 /** Called by the audio engine when there is work to be done with JACK.
52 * @param nframes Number of frames to process.
56 Session::process (pframes_t nframes)
58 framepos_t transport_at_start = _transport_frame;
62 if (processing_blocked()) {
67 if (non_realtime_work_pending()) {
68 if (!_butler->transport_work_requested ()) {
73 _engine.main_thread()->get_buffers ();
75 (this->*process_function) (nframes);
77 _engine.main_thread()->drop_buffers ();
79 /* deliver MIDI clock. Note that we need to use the transport frame
80 * position at the start of process(), not the value at the end of
81 * it. We may already have ticked() because of a transport state
82 * change, for example.
86 if (!_engine.freewheeling() && Config->get_send_midi_clock() && transport_speed() == 1.0f && midi_clock->has_midi_port()) {
87 midi_clock->tick (transport_at_start, nframes);
90 /* don't bother with a message */
93 SendFeedback (); /* EMIT SIGNAL */
97 Session::fail_roll (pframes_t nframes)
99 return no_roll (nframes);
103 Session::no_roll (pframes_t nframes)
107 framepos_t end_frame = _transport_frame + nframes; // FIXME: varispeed + no_roll ??
109 int declick = get_transport_declick_required();
110 boost::shared_ptr<RouteList> r = routes.reader ();
113 _click_io->silence (nframes);
116 ltc_tx_send_time_code_for_cycle (_transport_frame, end_frame, _target_transport_speed, _transport_speed, nframes);
118 if (_process_graph) {
119 DEBUG_TRACE(DEBUG::ProcessThreads,"calling graph/no-roll\n");
120 _process_graph->routes_no_roll( nframes, _transport_frame, end_frame, non_realtime_work_pending(), declick);
122 PT_TIMING_CHECK (10);
123 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
125 if ((*i)->is_auditioner()) {
129 (*i)->set_pending_declick (declick);
131 if ((*i)->no_roll (nframes, _transport_frame, end_frame, non_realtime_work_pending())) {
132 error << string_compose(_("Session: error in no roll for %1"), (*i)->name()) << endmsg;
137 PT_TIMING_CHECK (11);
144 /** @param need_butler to be set to true by this method if it needs the butler,
145 * otherwise it must be left alone.
148 Session::process_routes (pframes_t nframes, bool& need_butler)
150 int declick = get_transport_declick_required();
151 boost::shared_ptr<RouteList> r = routes.reader ();
153 if (transport_sub_state & StopPendingCapture) {
154 /* force a declick out */
158 const framepos_t start_frame = _transport_frame;
159 const framepos_t end_frame = _transport_frame + floor (nframes * _transport_speed);
161 if (_process_graph) {
162 DEBUG_TRACE(DEBUG::ProcessThreads,"calling graph/process-routes\n");
163 _process_graph->process_routes (nframes, start_frame, end_frame, declick, need_butler);
166 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
170 if ((*i)->is_auditioner()) {
174 (*i)->set_pending_declick (declick);
178 if ((ret = (*i)->roll (nframes, start_frame, end_frame, declick, b)) < 0) {
192 /** @param need_butler to be set to true by this method if it needs the butler,
193 * otherwise it must be left alone.
196 Session::silent_process_routes (pframes_t nframes, bool& need_butler)
198 boost::shared_ptr<RouteList> r = routes.reader ();
200 const framepos_t start_frame = _transport_frame;
201 const framepos_t end_frame = _transport_frame + lrintf(nframes * _transport_speed);
203 if (_process_graph) {
204 _process_graph->silent_process_routes (nframes, start_frame, end_frame, need_butler);
206 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
210 if ((*i)->is_auditioner()) {
216 if ((ret = (*i)->silent_roll (nframes, start_frame, end_frame, b)) < 0) {
231 Session::get_track_statistics ()
236 boost::shared_ptr<RouteList> rl = routes.reader();
237 for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
239 boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
241 if (!tr || tr->hidden()) {
245 pworst = min (pworst, tr->playback_buffer_load());
246 cworst = min (cworst, tr->capture_buffer_load());
249 g_atomic_int_set (&_playback_load, (uint32_t) floor (pworst * 100.0f));
250 g_atomic_int_set (&_capture_load, (uint32_t) floor (cworst * 100.0f));
252 if (actively_recording()) {
257 /** Process callback used when the auditioner is not active */
259 Session::process_with_events (pframes_t nframes)
264 pframes_t this_nframes;
265 framepos_t end_frame;
266 bool session_needs_butler = false;
267 framecnt_t frames_moved;
269 /* make sure the auditioner is silent */
272 auditioner->silence (nframes);
275 /* handle any pending events */
277 while (pending_events.read (&ev, 1) == 1) {
281 /* if we are not in the middle of a state change,
282 and there are immediate events queued up,
286 while (!non_realtime_work_pending() && !immediate_events.empty()) {
287 SessionEvent *ev = immediate_events.front ();
288 immediate_events.pop_front ();
292 /* Decide on what to do with quarter-frame MTC during this cycle */
294 bool const was_sending_qf_mtc = _send_qf_mtc;
295 double const tolerance = Config->get_mtc_qf_speed_tolerance() / 100.0;
297 if (_transport_speed != 0) {
299 Config->get_send_mtc () &&
300 _transport_speed >= (1 - tolerance) &&
301 _transport_speed <= (1 + tolerance)
304 if (_send_qf_mtc && !was_sending_qf_mtc) {
305 /* we will re-start quarter-frame MTC this cycle, so send a full update to set things up */
306 _send_timecode_update = true;
309 if (Config->get_send_mtc() && !_send_qf_mtc && _pframes_since_last_mtc > (frame_rate () / 4)) {
310 /* we're sending MTC, but we're not sending QF MTC at the moment, and it's been
311 a quarter of a second since we sent anything at all, so send a full MTC update
314 _send_timecode_update = true;
317 _pframes_since_last_mtc += nframes;
320 /* Events caused a transport change (or we re-started sending
321 * MTC), so send an MTC Full Frame (Timecode) message. This
322 * is sent whether rolling or not, to give slaves an idea of
323 * ardour time on locates (and allow slow slaves to position
324 * and prepare for rolling)
326 if (_send_timecode_update) {
327 send_full_time_code (_transport_frame, nframes);
330 if (!process_can_proceed()) {
335 if (events.empty() || next_event == events.end()) {
336 process_without_events (nframes);
340 if (_transport_speed == 1.0) {
341 frames_moved = (framecnt_t) nframes;
343 interpolation.set_target_speed (_target_transport_speed);
344 interpolation.set_speed (_transport_speed);
345 frames_moved = (framecnt_t) interpolation.interpolate (0, nframes, 0, 0);
348 end_frame = _transport_frame + frames_moved;
351 SessionEvent* this_event;
352 Events::iterator the_next_one;
354 if (!process_can_proceed()) {
359 if (!_exporting && _slave) {
360 if (!follow_slave (nframes)) {
365 if (_transport_speed == 0) {
370 if (!_exporting && !timecode_transmission_suspended()) {
371 send_midi_time_code_for_cycle (_transport_frame, end_frame, nframes);
374 framepos_t stop_limit = compute_stop_limit ();
376 if (maybe_stop (stop_limit)) {
381 this_event = *next_event;
382 the_next_one = next_event;
385 /* yes folks, here it is, the actual loop where we really truly
391 this_nframes = nframes; /* real (jack) time relative */
392 frames_moved = (framecnt_t) floor (_transport_speed * nframes); /* transport relative */
394 /* running an event, position transport precisely to its time */
395 if (this_event && this_event->action_frame <= end_frame && this_event->action_frame >= _transport_frame) {
396 /* this isn't quite right for reverse play */
397 frames_moved = (framecnt_t) (this_event->action_frame - _transport_frame);
398 this_nframes = abs (floor(frames_moved / _transport_speed));
403 click (_transport_frame, this_nframes);
405 if (process_routes (this_nframes, session_needs_butler)) {
410 get_track_statistics ();
412 nframes -= this_nframes;
414 if (frames_moved < 0) {
415 decrement_transport_position (-frames_moved);
417 increment_transport_position (frames_moved);
420 maybe_stop (stop_limit);
421 check_declick_out ();
424 _engine.split_cycle (this_nframes);
426 /* now handle this event and all others scheduled for the same time */
428 while (this_event && this_event->action_frame == _transport_frame) {
429 process_event (this_event);
431 if (the_next_one == events.end()) {
434 this_event = *the_next_one;
439 /* if an event left our state changing, do the right thing */
441 if (nframes && non_realtime_work_pending()) {
446 /* this is necessary to handle the case of seamless looping */
447 end_frame = _transport_frame + floor (nframes * _transport_speed);
452 } /* implicit release of route lock */
454 if (session_needs_butler) {
460 Session::reset_slave_state ()
462 average_slave_delta = 1800;
463 delta_accumulator_cnt = 0;
464 have_first_delta_accumulator = false;
465 _slave_state = Stopped;
469 Session::transport_locked () const
473 if (!locate_pending() && (!config.get_external_sync() || (sl && sl->ok() && sl->locked()))) {
481 Session::follow_slave (pframes_t nframes)
484 framepos_t slave_transport_frame;
485 framecnt_t this_delta;
490 config.set_external_sync (false);
494 _slave->process (nframes);
495 _slave->speed_and_position (slave_speed, slave_transport_frame);
497 DEBUG_TRACE (DEBUG::Slave, string_compose ("Slave position %1 speed %2\n", slave_transport_frame, slave_speed));
499 if (!_slave->locked()) {
500 DEBUG_TRACE (DEBUG::Slave, "slave not locked\n");
504 if (slave_transport_frame > _transport_frame) {
505 this_delta = slave_transport_frame - _transport_frame;
508 this_delta = _transport_frame - slave_transport_frame;
512 if (_slave->starting()) {
516 if (_slave->is_always_synced() ||
517 (Config->get_timecode_source_is_synced() && (dynamic_cast<TimecodeSlave*>(_slave)) != 0)
520 /* if the TC source is synced, then we assume that its
521 speed is binary: 0.0 or 1.0
524 if (slave_speed != 0.0f) {
530 /* if we are chasing and the average delta between us and the
531 master gets too big, we want to switch to silent
532 motion. so keep track of that here.
535 if (_slave_state == Running) {
536 calculate_moving_average_of_slave_delta(dir, this_delta);
540 track_slave_state (slave_speed, slave_transport_frame, this_delta);
542 DEBUG_TRACE (DEBUG::Slave, string_compose ("slave state %1 @ %2 speed %3 cur delta %4 avg delta %5\n",
543 _slave_state, slave_transport_frame, slave_speed, this_delta, average_slave_delta));
546 if (_slave_state == Running && !_slave->is_always_synced() &&
547 !(Config->get_timecode_source_is_synced() && (dynamic_cast<TimecodeSlave*>(_slave)) != 0)
550 if (_transport_speed != 0.0f) {
553 note that average_dir is +1 or -1
558 if (average_slave_delta == 0) {
562 delta = average_slave_delta;
563 delta *= average_dir;
567 if (slave_speed != 0.0) {
568 DEBUG_TRACE (DEBUG::Slave, string_compose ("delta = %1 speed = %2 ts = %3 M@%4 S@%5 avgdelta %6\n",
569 (int) (dir * this_delta),
573 slave_transport_frame,
574 average_slave_delta));
578 if (_slave->give_slave_full_control_over_transport_speed()) {
579 set_transport_speed (slave_speed, false, false);
580 //std::cout << "set speed = " << slave_speed << "\n";
582 float adjusted_speed = slave_speed + (1.5 * (delta / float(_current_frame_rate)));
583 request_transport_speed (adjusted_speed);
584 DEBUG_TRACE (DEBUG::Slave, string_compose ("adjust using %1 towards %2 ratio %3 current %4 slave @ %5\n",
585 delta, adjusted_speed, adjusted_speed/slave_speed, _transport_speed,
590 if (!actively_recording() && (framecnt_t) abs(average_slave_delta) > _slave->resolution()) {
591 cerr << "average slave delta greater than slave resolution (" << _slave->resolution() << "), going to silent motion\n";
599 if (_slave_state == Running && !non_realtime_work_pending()) {
600 /* speed is set, we're locked, and good to go */
605 DEBUG_TRACE (DEBUG::Slave, "silent motion\n")
606 follow_slave_silently (nframes, slave_speed);
609 /* don't move at all */
610 DEBUG_TRACE (DEBUG::Slave, "no roll\n")
616 Session::calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta)
618 if (delta_accumulator_cnt >= delta_accumulator_size) {
619 have_first_delta_accumulator = true;
620 delta_accumulator_cnt = 0;
623 if (delta_accumulator_cnt != 0 || this_delta < _current_frame_rate) {
624 delta_accumulator[delta_accumulator_cnt++] = (framecnt_t) dir * (framecnt_t) this_delta;
627 if (have_first_delta_accumulator) {
628 average_slave_delta = 0L;
629 for (int i = 0; i < delta_accumulator_size; ++i) {
630 average_slave_delta += delta_accumulator[i];
632 average_slave_delta /= (int32_t) delta_accumulator_size;
633 if (average_slave_delta < 0L) {
635 average_slave_delta = abs(average_slave_delta);
643 Session::track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t /*this_delta*/)
645 if (slave_speed != 0.0f) {
647 /* slave is running */
649 switch (_slave_state) {
651 if (_slave->requires_seekahead()) {
652 slave_wait_end = slave_transport_frame + _slave->seekahead_distance ();
653 DEBUG_TRACE (DEBUG::Slave, string_compose ("slave stopped, but running, requires seekahead to %1\n", slave_wait_end));
654 /* we can call locate() here because we are in process context */
655 locate (slave_wait_end, false, false);
656 _slave_state = Waiting;
660 DEBUG_TRACE (DEBUG::Slave, string_compose ("slave stopped -> running at %1\n", slave_transport_frame));
662 memset (delta_accumulator, 0, sizeof (int32_t) * delta_accumulator_size);
663 average_slave_delta = 0L;
665 Location* al = _locations->auto_loop_location();
667 if (al && play_loop && (slave_transport_frame < al->start() || slave_transport_frame > al->end())) {
669 request_play_loop(false);
672 if (slave_transport_frame != _transport_frame) {
673 DEBUG_TRACE (DEBUG::Slave, string_compose ("require locate to run. eng: %1 -> sl: %2\n", _transport_frame, slave_transport_frame));
674 locate (slave_transport_frame, false, false);
676 _slave_state = Running;
685 if (_slave_state == Waiting) {
687 DEBUG_TRACE (DEBUG::Slave, string_compose ("slave waiting at %1\n", slave_transport_frame));
689 if (slave_transport_frame >= slave_wait_end) {
691 DEBUG_TRACE (DEBUG::Slave, string_compose ("slave start at %1 vs %2\n", slave_transport_frame, _transport_frame));
693 _slave_state = Running;
695 /* now perform a "micro-seek" within the disk buffers to realign ourselves
696 precisely with the master.
701 framecnt_t frame_delta = slave_transport_frame - _transport_frame;
703 boost::shared_ptr<RouteList> rl = routes.reader();
704 for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
705 boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
706 if (tr && !tr->can_internal_playback_seek (frame_delta)) {
713 for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
714 boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
716 tr->internal_playback_seek (frame_delta);
719 _transport_frame += frame_delta;
722 cerr << "cannot micro-seek\n";
728 if (_slave_state == Running && _transport_speed == 0.0f) {
729 DEBUG_TRACE (DEBUG::Slave, "slave starts transport\n");
733 } else { // slave_speed is 0
735 /* slave has stopped */
737 if (_transport_speed != 0.0f) {
738 DEBUG_TRACE (DEBUG::Slave, string_compose ("slave stops transport: %1 frame %2 tf %3\n", slave_speed, slave_transport_frame, _transport_frame));
742 if (slave_transport_frame != _transport_frame) {
743 DEBUG_TRACE (DEBUG::Slave, string_compose ("slave stopped, move to %1\n", slave_transport_frame));
744 force_locate (slave_transport_frame, false);
752 Session::follow_slave_silently (pframes_t nframes, float slave_speed)
754 if (slave_speed && _transport_speed) {
756 /* something isn't right, but we should move with the master
762 silent_process_routes (nframes, need_butler);
764 get_track_statistics ();
770 int32_t frames_moved = (int32_t) floor (_transport_speed * nframes);
772 if (frames_moved < 0) {
773 decrement_transport_position (-frames_moved);
775 increment_transport_position (frames_moved);
778 framepos_t const stop_limit = compute_stop_limit ();
779 maybe_stop (stop_limit);
784 Session::process_without_events (pframes_t nframes)
786 bool session_needs_butler = false;
787 framecnt_t frames_moved;
789 if (!process_can_proceed()) {
794 if (!_exporting && _slave) {
795 if (!follow_slave (nframes)) {
796 ltc_tx_send_time_code_for_cycle (_transport_frame, _transport_frame, 0, 0 , nframes);
801 if (_transport_speed == 0) {
806 if (_transport_speed == 1.0) {
807 frames_moved = (framecnt_t) nframes;
809 interpolation.set_target_speed (_target_transport_speed);
810 interpolation.set_speed (_transport_speed);
811 frames_moved = (framecnt_t) interpolation.interpolate (0, nframes, 0, 0);
814 if (!_exporting && !timecode_transmission_suspended()) {
815 send_midi_time_code_for_cycle (_transport_frame, _transport_frame + frames_moved, nframes);
818 ltc_tx_send_time_code_for_cycle (_transport_frame, _transport_frame + frames_moved, _target_transport_speed, _transport_speed, nframes);
820 framepos_t const stop_limit = compute_stop_limit ();
822 if (maybe_stop (stop_limit)) {
827 if (maybe_sync_start (nframes)) {
831 click (_transport_frame, nframes);
833 if (process_routes (nframes, session_needs_butler)) {
838 get_track_statistics ();
840 if (frames_moved < 0) {
841 decrement_transport_position (-frames_moved);
843 increment_transport_position (frames_moved);
846 maybe_stop (stop_limit);
847 check_declick_out ();
849 if (session_needs_butler) {
854 /** Process callback used when the auditioner is active.
855 * @param nframes number of frames to process.
858 Session::process_audition (pframes_t nframes)
861 boost::shared_ptr<RouteList> r = routes.reader ();
863 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
864 if (!(*i)->is_auditioner()) {
865 (*i)->silence (nframes);
869 /* run the auditioner, and if it says we need butler service, ask for it */
871 if (auditioner->play_audition (nframes) > 0) {
875 /* if using a monitor section, run it because otherwise we don't hear anything */
877 if (auditioner->needs_monitor()) {
878 _monitor_out->monitor_run (_transport_frame, _transport_frame + nframes, nframes, false);
881 /* handle pending events */
883 while (pending_events.read (&ev, 1) == 1) {
887 /* if we are not in the middle of a state change,
888 and there are immediate events queued up,
892 while (!non_realtime_work_pending() && !immediate_events.empty()) {
893 SessionEvent *ev = immediate_events.front ();
894 immediate_events.pop_front ();
898 if (!auditioner->auditioning()) {
899 /* auditioner no longer active, so go back to the normal process callback */
900 process_function = &Session::process_with_events;
905 Session::maybe_sync_start (pframes_t & nframes)
907 pframes_t sync_offset;
909 if (!waiting_for_sync_offset) {
913 if (_engine.get_sync_offset (sync_offset) && sync_offset < nframes) {
915 /* generate silence up to the sync point, then
916 adjust nframes + offset to reflect whatever
920 no_roll (sync_offset);
921 nframes -= sync_offset;
922 Port::increment_global_port_buffer_offset (sync_offset);
923 waiting_for_sync_offset = false;
926 return true; // done, nothing left to process
931 /* sync offset point is not within this process()
932 cycle, so just generate silence. and don't bother
933 with any fancy stuff here, just the minimal silence.
938 if (Config->get_locate_while_waiting_for_sync()) {
939 if (micro_locate (nframes)) {
940 /* XXX ERROR !!! XXX */
944 return true; // done, nothing left to process
951 Session::queue_event (SessionEvent* ev)
953 if (_state_of_the_state & Deletion) {
955 } else if (_state_of_the_state & Loading) {
958 pending_events.write (&ev, 1);
963 Session::set_next_event ()
965 if (events.empty()) {
966 next_event = events.end();
970 if (next_event == events.end()) {
971 next_event = events.begin();
974 if ((*next_event)->action_frame > _transport_frame) {
975 next_event = events.begin();
978 for (; next_event != events.end(); ++next_event) {
979 if ((*next_event)->action_frame >= _transport_frame) {
986 Session::process_event (SessionEvent* ev)
991 /* if we're in the middle of a state change (i.e. waiting
992 for the butler thread to complete the non-realtime
993 part of the change), we'll just have to queue this
994 event for a time when the change is complete.
997 if (non_realtime_work_pending()) {
999 /* except locates, which we have the capability to handle */
1001 if (ev->type != SessionEvent::Locate) {
1002 immediate_events.insert (immediate_events.end(), ev);
1008 DEBUG_TRACE (DEBUG::SessionEvents, string_compose ("Processing event: %1 @ %2\n", enum_2_string (ev->type), _transport_frame));
1011 case SessionEvent::SetLoop:
1012 set_play_loop (ev->yes_or_no);
1015 case SessionEvent::AutoLoop:
1017 /* roll after locate, do not flush, set "with loop"
1018 true only if we are seamless looping
1020 start_locate (ev->target_frame, true, false, Config->get_seamless_loop());
1026 case SessionEvent::AutoLoopDeclick:
1028 /* Request a declick fade-out and a fade-in; the fade-out will happen
1029 at the end of the loop, and the fade-in at the start.
1031 transport_sub_state |= (PendingLoopDeclickOut | PendingLoopDeclickIn);
1037 case SessionEvent::Locate:
1038 if (ev->yes_or_no) {
1039 /* args: do not roll after locate, do flush, not with loop */
1040 locate (ev->target_frame, false, true, false);
1042 /* args: do not roll after locate, do flush, not with loop */
1043 start_locate (ev->target_frame, false, true, false);
1045 _send_timecode_update = true;
1048 case SessionEvent::LocateRoll:
1049 if (ev->yes_or_no) {
1050 /* args: roll after locate, do flush, not with loop */
1051 locate (ev->target_frame, true, true, false);
1053 /* args: roll after locate, do flush, not with loop */
1054 start_locate (ev->target_frame, true, true, false);
1056 _send_timecode_update = true;
1059 case SessionEvent::LocateRollLocate:
1060 // locate is handled by ::request_roll_at_and_return()
1061 _requested_return_frame = ev->target_frame;
1062 request_locate (ev->target2_frame, true);
1066 case SessionEvent::SetTransportSpeed:
1067 set_transport_speed (ev->speed, ev->yes_or_no, ev->second_yes_or_no, ev->third_yes_or_no);
1070 case SessionEvent::PunchIn:
1071 // cerr << "PunchIN at " << transport_frame() << endl;
1072 if (config.get_punch_in() && record_status() == Enabled) {
1079 case SessionEvent::PunchOut:
1080 // cerr << "PunchOUT at " << transport_frame() << endl;
1081 if (config.get_punch_out()) {
1082 step_back_from_record ();
1088 case SessionEvent::StopOnce:
1089 if (!non_realtime_work_pending()) {
1090 stop_transport (ev->yes_or_no);
1091 _clear_event_type (SessionEvent::StopOnce);
1097 case SessionEvent::RangeStop:
1098 if (!non_realtime_work_pending()) {
1099 stop_transport (ev->yes_or_no);
1105 case SessionEvent::RangeLocate:
1106 /* args: roll after locate, do flush, not with loop */
1107 start_locate (ev->target_frame, true, true, false);
1112 case SessionEvent::Overwrite:
1113 overwrite_some_buffers (static_cast<Track*>(ev->ptr));
1116 case SessionEvent::SetTrackSpeed:
1117 set_track_speed (static_cast<Track*> (ev->ptr), ev->speed);
1120 case SessionEvent::SetSyncSource:
1121 DEBUG_TRACE (DEBUG::Slave, "seen request for new slave\n");
1122 use_sync_source (ev->slave);
1125 case SessionEvent::Audition:
1126 set_audition (ev->region);
1127 // drop reference to region
1128 ev->region.reset ();
1131 case SessionEvent::InputConfigurationChange:
1132 add_post_transport_work (PostTransportInputChange);
1133 _butler->schedule_transport_work ();
1136 case SessionEvent::SetPlayAudioRange:
1137 set_play_range (ev->audio_range, (ev->speed == 1.0f));
1140 case SessionEvent::RealTimeOperation:
1142 del = false; // other side of RT request needs to clean up
1145 case SessionEvent::AdjustPlaybackBuffering:
1146 schedule_playback_buffering_adjustment ();
1149 case SessionEvent::AdjustCaptureBuffering:
1150 schedule_capture_buffering_adjustment ();
1153 case SessionEvent::SetTimecodeTransmission:
1154 g_atomic_int_set (&_suspend_timecode_transmission, ev->yes_or_no ? 0 : 1);
1158 fatal << string_compose(_("Programming error: illegal event type in process_event (%1)"), ev->type) << endmsg;
1164 del = del && !_remove_event (ev);
1173 Session::compute_stop_limit () const
1175 if (!Config->get_stop_at_session_end ()) {
1176 return max_framepos;
1180 return max_framepos;
1184 bool const punching_in = (config.get_punch_in () && _locations->auto_punch_location());
1185 bool const punching_out = (config.get_punch_out () && _locations->auto_punch_location());
1187 if (actively_recording ()) {
1188 /* permanently recording */
1189 return max_framepos;
1190 } else if (punching_in && !punching_out) {
1191 /* punching in but never out */
1192 return max_framepos;
1193 } else if (punching_in && punching_out && _locations->auto_punch_location()->end() > current_end_frame()) {
1194 /* punching in and punching out after session end */
1195 return max_framepos;
1198 return current_end_frame ();