void
Session::request_stop (bool abort, bool clear_state)
{
- SessionEvent* ev = new SessionEvent (SessionEvent::SetTransportSpeed, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0, abort, clear_state);
- DEBUG_TRACE (DEBUG::Transport, string_compose ("Request transport stop, abort = %1, clear state = %2\n", abort, clear_state));
+ SessionEvent* ev = new SessionEvent (SessionEvent::SetTransportSpeed, SessionEvent::Add, SessionEvent::Immediate, audible_frame(), 0.0, abort, clear_state);
+ DEBUG_TRACE (DEBUG::Transport, string_compose ("Request transport stop, audible %3 transport %4 abort = %1, clear state = %2\n", abort, clear_state, audible_frame(), _transport_frame));
queue_event (ev);
}
for (RouteList::iterator i = r->begin (); i != r->end(); ++i) {
(*i)->realtime_handle_transport_stopped ();
}
+
+ DEBUG_TRACE (DEBUG::Transport, string_compose ("stop complete, auto-return scheduled for return to %1\n", _requested_return_frame));
- if (actively_recording()) {
-
- /* move the transport position back to where the
- request for a stop was noticed. we rolled
- past that point to pick up delayed input (and/or to delick)
- */
-
- if (worst_playback_latency() > current_block_size) {
- /* we rolled past the stop point to pick up data that had
- not yet arrived. move back to where the stop occured.
- */
- decrement_transport_position (current_block_size + (worst_input_latency() - current_block_size));
- } else {
- decrement_transport_position (current_block_size);
- }
-
- /* the duration change is not guaranteed to have happened, but is likely */
-
- todo = PostTransportWork (todo | PostTransportDuration);
- }
+ /* the duration change is not guaranteed to have happened, but is likely */
+
+ todo = PostTransportWork (todo | PostTransportDuration);
if (abort) {
todo = PostTransportWork (todo | PostTransportAbort);
}
if (ptw & PostTransportLocate) {
+ DEBUG_TRACE (DEBUG::Transport, "nonrealtime locate invoked from BTW\n");
non_realtime_locate ();
}
void
Session::non_realtime_locate ()
{
+ DEBUG_TRACE (DEBUG::Transport, string_compose ("locate tracks to %1\n", _transport_frame));
+
+ if (Config->get_loop_is_mode() && get_play_loop()) {
+
+ Location *loc = _locations->auto_loop_location();
+
+ if (!loc || (_transport_frame < loc->start() || _transport_frame >= loc->end())) {
+ /* jumped out of loop range: stop tracks from looping,
+ but leave loop (mode) enabled.
+ */
+ set_track_loop (false);
+
+ } else if (loc && Config->get_seamless_loop() &&
+ ((loc->start() <= _transport_frame) ||
+ (loc->end() > _transport_frame) ) ) {
+
+ /* jumping to start of loop. This might have been done before but it is
+ * idempotent and cheap. Doing it here ensures that when we start playback
+ * outside the loop we still flip tracks into the magic seamless mode
+ * when needed.
+ */
+ set_track_loop (true);
+
+ } else if (loc) {
+ set_track_loop (false);
+ }
+
+ } else {
+
+ /* no more looping .. should have been noticed elsewhere */
+ }
+
+
boost::shared_ptr<RouteList> rl = routes.reader();
for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
(*i)->non_realtime_locate (_transport_frame);
clear_clicks ();
}
-
void
Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
{
}
bool const auto_return_enabled =
- (!config.get_external_sync() && config.get_auto_return());
+ (!config.get_external_sync() && (config.get_auto_return() || abort));
if (auto_return_enabled ||
(ptw & PostTransportLocate) ||
_transport_frame = _last_roll_location;
do_locate = true;
}
+ } else if (abort) {
+
+ _transport_frame = _last_roll_location;
+ do_locate = true;
}
}
_send_timecode_update = true;
if (!dynamic_cast<MTC_Slave*>(_slave)) {
- _mmc->send (MIDI::MachineControlCommand (MIDI::MachineControl::cmdStop));
+ send_immediate_mmc (MIDI::MachineControlCommand (MIDI::MachineControl::cmdStop));
/* This (::non_realtime_stop()) gets called by main
process thread, which will lead to confusion
* save state only if there's no slave or if it's not yet locked.
*/
if (!_slave || !_slave->locked()) {
- DEBUG_TRACE (DEBUG::Transport, X_("Butler PTW: pending save\n"));
- /* capture start has been changed, so save pending state */
- save_state ("", true);
+ DEBUG_TRACE (DEBUG::Transport, X_("Butler PTW: requests save\n"));
+ SaveSessionRequested (_current_snapshot_name);
saved = true;
}
}
/* save the current state of things if appropriate */
if (did_record && !saved) {
- save_state (_current_snapshot_name);
+ SaveSessionRequested (_current_snapshot_name);
}
if (ptw & PostTransportStop) {
start_locate (pending_locate_frame, pending_locate_roll, pending_locate_flush);
transport_sub_state &= ~(PendingDeclickOut|PendingLocate);
} else {
- stop_transport (pending_abort);
- transport_sub_state &= ~(PendingDeclickOut|PendingLocate);
+ if (!(transport_sub_state & StopPendingCapture)) {
+ stop_transport (pending_abort);
+ transport_sub_state &= ~(PendingDeclickOut|PendingLocate);
+ }
}
} else if (transport_sub_state & PendingLoopDeclickOut) {
void
Session::unset_play_loop ()
{
- play_loop = false;
- clear_events (SessionEvent::AutoLoop);
- clear_events (SessionEvent::AutoLoopDeclick);
+ if (play_loop) {
+ play_loop = false;
+ clear_events (SessionEvent::AutoLoop);
+ clear_events (SessionEvent::AutoLoopDeclick);
+ set_track_loop (false);
+
+
+ if (Config->get_seamless_loop()) {
+ /* likely need to flush track buffers: this will locate us to wherever we are */
+ add_post_transport_work (PostTransportLocate);
+ _butler->schedule_transport_work ();
+ }
+ }
+}
+
+void
+Session::set_track_loop (bool yn)
+{
+ Location* loc = _locations->auto_loop_location ();
+
+ if (!loc) {
+ yn = false;
+ }
- // set all tracks to NOT use internal looping
boost::shared_ptr<RouteList> rl = routes.reader ();
+
for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
if (tr && !tr->hidden()) {
- tr->set_loop (0);
+ tr->set_loop (yn ? loc : 0);
}
}
}
if (yn) {
play_loop = true;
-
+ have_looped = false;
+
if (loc) {
unset_play_range ();
if (Config->get_seamless_loop()) {
- // set all tracks to use internal looping
- boost::shared_ptr<RouteList> rl = routes.reader ();
- for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
- boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
- if (tr && !tr->hidden()) {
- tr->set_loop (loc);
- }
- }
- }
- else {
- // set all tracks to NOT use internal looping
- boost::shared_ptr<RouteList> rl = routes.reader ();
- for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
- boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
- if (tr && !tr->hidden()) {
- tr->set_loop (0);
- }
+ if (!Config->get_loop_is_mode()) {
+ /* set all tracks to use internal looping */
+ set_track_loop (true);
+ } else {
+ /* we will do this in the locate to the start OR when we hit the end
+ * of the loop for the first time
+ */
}
+ } else {
+ /* set all tracks to NOT use internal looping */
+ set_track_loop (false);
}
/* Put the delick and loop events in into the event list. The declick event will
void
Session::start_locate (framepos_t target_frame, bool with_roll, bool with_flush, bool with_loop, bool force)
{
+ if (target_frame < 0) {
+ error << _("Locate called for negative sample position - ignored") << endmsg;
+ return;
+ }
+
if (synced_to_engine()) {
double sp;
void
Session::locate (framepos_t target_frame, bool with_roll, bool with_flush, bool for_seamless_loop, bool force, bool with_mmc)
{
+ bool need_butler = false;
+
/* Locates for seamless looping are fairly different from other
* locates. They assume that the diskstream buffers for each track
* already have the correct data in them, and thus there is no need to
* changes in the value of _transport_frame.
*/
+ DEBUG_TRACE (DEBUG::Transport, string_compose ("rt-locate to %1, roll %2 flush %3 seamless %4 force %5 mmc %6\n",
+ target_frame, with_roll, with_flush, for_seamless_loop, force, with_mmc));
+
if (actively_recording() && !for_seamless_loop) {
return;
}
if (!force && _transport_frame == target_frame && !loop_changing && !for_seamless_loop) {
if (with_roll) {
- set_transport_speed (1.0, false);
+ set_transport_speed (1.0, 0, false);
}
loop_changing = false;
Located (); /* EMIT SIGNAL */
*/
bool transport_was_stopped = !transport_rolling();
-
+
if (transport_was_stopped && (!auto_play_legal || !config.get_auto_play()) && !with_roll && !(synced_to_engine() && play_loop)) {
realtime_stop (false, true); // XXX paul - check if the 2nd arg is really correct
transport_was_stopped = true;
}
add_post_transport_work (todo);
- _butler->schedule_transport_work ();
-
+ need_butler = true;
+
} else {
/* this is functionally what clear_clicks() does but with a tentative lock */
// located outside the loop: cancel looping directly, this is called from event handling context
+ have_looped = false;
+
if (!Config->get_loop_is_mode()) {
set_play_loop (false, _transport_speed);
+ } else {
+ if (Config->get_seamless_loop()) {
+ /* this will make the non_realtime_locate() in the butler
+ which then causes seek() in tracks actually do the right
+ thing.
+ */
+ set_track_loop (false);
+ }
}
} else if (_transport_frame == al->start()) {
if (for_seamless_loop) {
+ if (!have_looped) {
+ /* first time */
+ if (_last_roll_location != al->start()) {
+ /* didn't start at loop start - playback must have
+ * started before loop since we've now hit the loop
+ * end.
+ */
+ add_post_transport_work (PostTransportLocate);
+ need_butler = true;
+ }
+
+ }
+
// this is only necessary for seamless looping
boost::shared_ptr<RouteList> rl = routes.reader();
}
}
+ if (need_butler) {
+ _butler->schedule_transport_work ();
+ }
+
loop_changing = false;
_send_timecode_update = true;
* @param speed New speed
*/
void
-Session::set_transport_speed (double speed, bool abort, bool clear_state, bool as_default)
+Session::set_transport_speed (double speed, framepos_t destination_frame, bool abort, bool clear_state, bool as_default)
{
DEBUG_TRACE (DEBUG::Transport, string_compose ("@ %5 Set transport speed to %1, abort = %2 clear_state = %3, current = %4 as_default %6\n",
speed, abort, clear_state, _transport_speed, _transport_frame, as_default));
if (Config->get_monitoring_model() == HardwareMonitoring) {
set_track_monitor_input_status (true);
}
-
+
if (synced_to_engine ()) {
if (clear_state) {
/* do this here because our response to the slave won't
}
_engine.transport_stop ();
} else {
+ bool const auto_return_enabled = (!config.get_external_sync() && (config.get_auto_return() || abort));
+
+ if (!auto_return_enabled) {
+ _requested_return_frame = destination_frame;
+ }
+
stop_transport (abort);
}
if (location != 0) {
if (_transport_frame != location->start()) {
+
+ if (Config->get_seamless_loop()) {
+ /* force tracks to do their thing */
+ set_track_loop (true);
+ }
+
/* jump to start and then roll from there */
+
request_locate (location->start(), true);
return;
}
}
DEBUG_TRACE (DEBUG::Transport, string_compose ("send TSC3 with speed = %1\n", _transport_speed));
- TransportStateChange (); /* EMIT SIGNAL */
+
+ /* throttle signal emissions.
+ * when slaved [_last]_transport_speed
+ * usually changes every cycle (tiny amounts due to DLL).
+ * Emitting a signal every cycle is overkill and unwarranted.
+ *
+ * Using _last_transport_speed is not acceptable,
+ * since it allows for large changes over a long period
+ * of time. Hence we introduce a dedicated variable to keep track
+ *
+ * The 0.2% dead-zone is somewhat arbitrary. Main use-case
+ * for TransportStateChange() here is the ShuttleControl display.
+ */
+ if (fabsf(_signalled_varispeed - speed) > .002f
+ // still, signal hard changes to 1.0 and 0.0:
+ || ( speed == 1.f && _signalled_varispeed != 1.f)
+ || ( speed == 0.f && _signalled_varispeed != 0.f)
+ )
+ {
+ TransportStateChange (); /* EMIT SIGNAL */
+ _signalled_varispeed = speed;
+ }
}
}
return;
}
- if (actively_recording() && !(transport_sub_state & StopPendingCapture) && worst_input_latency() > current_block_size) {
+ if (!get_transport_declick_required()) {
+
+ /* stop has not yet been scheduled */
boost::shared_ptr<RouteList> rl = routes.reader();
+ framepos_t stop_target = audible_frame();
+
for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
if (tr) {
- tr->prepare_to_stop (_transport_frame);
+ tr->prepare_to_stop (_transport_frame, stop_target);
}
}
- /* we need to capture the audio that has still not yet been received by the system
- at the time the stop is requested, so we have to roll past that time.
-
- we want to declick before stopping, so schedule the autostop for one
- block before the actual end. we'll declick in the subsequent block,
- and then we'll really be stopped.
- */
-
- DEBUG_TRACE (DEBUG::Transport, string_compose ("stop transport requested @ %1, scheduled for + %2 - %3 = %4, abort = %5\n",
- _transport_frame, _worst_input_latency, current_block_size,
- _transport_frame - _worst_input_latency - current_block_size,
- abort));
-
- SessionEvent *ev = new SessionEvent (SessionEvent::StopOnce, SessionEvent::Replace,
- _transport_frame + _worst_input_latency - current_block_size,
- 0, 0, abort);
-
- merge_event (ev);
- transport_sub_state |= StopPendingCapture;
- pending_abort = abort;
- return;
- }
-
- if ((transport_sub_state & PendingDeclickOut) == 0) {
+ SubState new_bits;
+
+ if (actively_recording() && /* we are recording */
+ worst_input_latency() > current_block_size) { /* input latency exceeds block size, so simple 1 cycle delay before stop is not enough */
+
+ /* we need to capture the audio that is still somewhere in the pipeline between
+ wherever it was generated and the process callback. This means that even though
+ the user (or something else) has asked us to stop, we have to roll
+ past this point and then reset the playhead/transport location to
+ the position at which the stop was requested.
+
+ we still need playback to "stop" now, however, which is why we schedule
+ a declick below.
+ */
+
+ DEBUG_TRACE (DEBUG::Transport, string_compose ("stop transport requested @ %1, scheduled for + %2 = %3, abort = %4\n",
+ _transport_frame, _worst_input_latency,
+ _transport_frame + _worst_input_latency,
+ abort));
+
+ SessionEvent *ev = new SessionEvent (SessionEvent::StopOnce, SessionEvent::Replace,
+ _transport_frame + _worst_input_latency,
+ 0, 0, abort);
+
+ merge_event (ev);
- if (!(transport_sub_state & StopPendingCapture)) {
- boost::shared_ptr<RouteList> rl = routes.reader();
- for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
- boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
- if (tr) {
- tr->prepare_to_stop (_transport_frame);
- }
- }
+ /* request a declick at the start of the next process cycle() so that playback ceases.
+ It will remain silent until we actually stop (at the StopOnce event somewhere in
+ the future). The extra flag (StopPendingCapture) is set to ensure that check_declick_out()
+ does not stop the transport too early.
+ */
+ new_bits = SubState (PendingDeclickOut|StopPendingCapture);
+
+ } else {
+
+ /* Not recording, schedule a declick in the next process() cycle and then stop at its end */
+
+ new_bits = PendingDeclickOut;
}
- transport_sub_state |= PendingDeclickOut;
+
/* we'll be called again after the declick */
+ transport_sub_state = SubState (transport_sub_state|new_bits);
pending_abort = abort;
+
return;
- }
- realtime_stop (abort, clear_state);
- _butler->schedule_transport_work ();
+ } else {
+
+ /* declick was scheduled, but we've been called again, which means it is really time to stop
+
+ XXX: we should probably split this off into its own method and call it explicitly.
+ */
+
+ realtime_stop (abort, clear_state);
+ _butler->schedule_transport_work ();
+ }
}
/** Called from the process thread */
Timecode::Time time;
timecode_time_subframes (_transport_frame, time);
if (!dynamic_cast<MTC_Slave*>(_slave)) {
- _mmc->send (MIDI::MachineControlCommand (MIDI::MachineControl::cmdDeferredPlay));
+ send_immediate_mmc (MIDI::MachineControlCommand (MIDI::MachineControl::cmdDeferredPlay));
}
}
lar.push_back (ar);
request_play_range (&lar, true);
}
+
+void
+Session::set_requested_return_frame (framepos_t return_to)
+{
+ _requested_return_frame = return_to;
+}
+
void
Session::request_roll_at_and_return (framepos_t start, framepos_t return_to)
{
*/
if (_butler) {
- g_atomic_int_set (&_butler->should_do_transport_work, 0);
- set_post_transport_work (PostTransportWork (0));
_butler->stop ();
}
void
Session::xrun_recovery ()
{
+ ++_xrun_count;
+
Xrun (_transport_frame); /* EMIT SIGNAL */
if (Config->get_stop_recording_on_xrun() && actively_recording()) {
}
if (c.type == RouteProcessorChange::MeterPointChange) {
+ set_dirty ();
+ return;
+ }
+
+ if (c.type == RouteProcessorChange::RealTimeChange) {
+ set_dirty ();
return;
}
void
Session::send_mmc_locate (framepos_t t)
{
+ if (t < 0) {
+ return;
+ }
+
if (!_engine.freewheeling()) {
Timecode::Time time;
timecode_time_subframes (t, time);
- _mmc->send (MIDI::MachineControlCommand (time));
+ send_immediate_mmc (MIDI::MachineControlCommand (time));
}
}
projects / ardour.git / blobdiff