#include "ardour/butler.h"
#include "ardour/cycle_timer.h"
#include "ardour/debug.h"
+#include "ardour/disk_reader.h"
#include "ardour/graph.h"
#include "ardour/port.h"
#include "ardour/process_thread.h"
+#include "ardour/scene_changer.h"
#include "ardour/session.h"
#include "ardour/slave.h"
#include "ardour/ticker.h"
#include "ardour/types.h"
+#include "ardour/vca.h"
+#include "ardour/vca_manager.h"
#include "midi++/mmc.h"
-#include "i18n.h"
+#include "pbd/i18n.h"
using namespace ARDOUR;
using namespace PBD;
using namespace std;
/** Called by the audio engine when there is work to be done with JACK.
- * @param nframes Number of frames to process.
+ * @param nframes Number of samples to process.
*/
void
Session::process (pframes_t nframes)
{
- framepos_t transport_at_start = _transport_frame;
+ samplepos_t transport_at_start = _transport_sample;
_silent = false;
(this->*process_function) (nframes);
+ /* realtime-safe meter-position and processor-order changes
+ *
+ * ideally this would be done in
+ * Route::process_output_buffers() but various functions
+ * callig it hold a _processor_lock reader-lock
+ */
+ boost::shared_ptr<RouteList> r = routes.reader ();
+ for (RouteList::const_iterator i = r->begin(); i != r->end(); ++i) {
+ if ((*i)->apply_processor_changes_rt()) {
+ _rt_emit_pending = true;
+ }
+ }
+ if (_rt_emit_pending) {
+ if (!_rt_thread_active) {
+ emit_route_signals ();
+ }
+ if (pthread_mutex_trylock (&_rt_emit_mutex) == 0) {
+ pthread_cond_signal (&_rt_emit_cond);
+ pthread_mutex_unlock (&_rt_emit_mutex);
+ _rt_emit_pending = false;
+ }
+ }
+
_engine.main_thread()->drop_buffers ();
- /* deliver MIDI clock. Note that we need to use the transport frame
+ /* deliver MIDI clock. Note that we need to use the transport sample
* position at the start of process(), not the value at the end of
* it. We may already have ticked() because of a transport state
* change, for example.
*/
try {
- if (!_engine.freewheeling() && Config->get_send_midi_clock() && transport_speed() == 1.0f && midi_clock->has_midi_port()) {
+ if (!_silent && !_engine.freewheeling() && Config->get_send_midi_clock() && (transport_speed() == 1.0f || transport_speed() == 0.0f) && midi_clock->has_midi_port()) {
midi_clock->tick (transport_at_start, nframes);
}
+
+ _scene_changer->run (transport_at_start, transport_at_start + nframes);
+
} catch (...) {
/* don't bother with a message */
}
Session::no_roll (pframes_t nframes)
{
PT_TIMING_CHECK (4);
-
- framepos_t end_frame = _transport_frame + nframes; // FIXME: varispeed + no_roll ??
+
+ samplepos_t end_sample = _transport_sample + nframes; // FIXME: varispeed + no_roll ??
int ret = 0;
- int declick = get_transport_declick_required();
+ int declick = (config.get_use_transport_fades() ? get_transport_declick_required() : false);
boost::shared_ptr<RouteList> r = routes.reader ();
if (_click_io) {
_click_io->silence (nframes);
}
- ltc_tx_send_time_code_for_cycle (_transport_frame, end_frame, _target_transport_speed, _transport_speed, nframes);
+ ltc_tx_send_time_code_for_cycle (_transport_sample, end_sample, _target_transport_speed, _transport_speed, nframes);
+
+ VCAList v = _vca_manager->vcas ();
+ for (VCAList::const_iterator i = v.begin(); i != v.end(); ++i) {
+ (*i)->automation_run (_transport_sample, nframes);
+ }
if (_process_graph) {
DEBUG_TRACE(DEBUG::ProcessThreads,"calling graph/no-roll\n");
- _process_graph->routes_no_roll( nframes, _transport_frame, end_frame, non_realtime_work_pending(), declick);
+ _process_graph->routes_no_roll( nframes, _transport_sample, end_sample, non_realtime_work_pending(), declick);
} else {
PT_TIMING_CHECK (10);
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
(*i)->set_pending_declick (declick);
- if ((*i)->no_roll (nframes, _transport_frame, end_frame, non_realtime_work_pending())) {
+ if ((*i)->no_roll (nframes, _transport_sample, end_sample, non_realtime_work_pending())) {
error << string_compose(_("Session: error in no roll for %1"), (*i)->name()) << endmsg;
ret = -1;
break;
int
Session::process_routes (pframes_t nframes, bool& need_butler)
{
- int declick = get_transport_declick_required();
+ int declick = (config.get_use_transport_fades() ? get_transport_declick_required() : false);
boost::shared_ptr<RouteList> r = routes.reader ();
- if (transport_sub_state & StopPendingCapture) {
- /* force a declick out */
- declick = -1;
+ const samplepos_t start_sample = _transport_sample;
+ const samplepos_t end_sample = _transport_sample + floor (nframes * _transport_speed);
+
+ VCAList v = _vca_manager->vcas ();
+ for (VCAList::const_iterator i = v.begin(); i != v.end(); ++i) {
+ (*i)->automation_run (start_sample, nframes);
}
- const framepos_t start_frame = _transport_frame;
- const framepos_t end_frame = _transport_frame + floor (nframes * _transport_speed);
-
+ _global_locate_pending = locate_pending ();
+
if (_process_graph) {
DEBUG_TRACE(DEBUG::ProcessThreads,"calling graph/process-routes\n");
- _process_graph->process_routes (nframes, start_frame, end_frame, declick, need_butler);
+ if (_process_graph->process_routes (nframes, start_sample, end_sample, declick, need_butler) < 0) {
+ stop_transport ();
+ return -1;
+ }
} else {
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
bool b = false;
- if ((ret = (*i)->roll (nframes, start_frame, end_frame, declick, b)) < 0) {
- stop_transport ();
- return -1;
- }
-
- if (b) {
- need_butler = true;
- }
- }
- }
-
- return 0;
-}
-
-/** @param need_butler to be set to true by this method if it needs the butler,
- * otherwise it must be left alone.
- */
-int
-Session::silent_process_routes (pframes_t nframes, bool& need_butler)
-{
- boost::shared_ptr<RouteList> r = routes.reader ();
-
- const framepos_t start_frame = _transport_frame;
- const framepos_t end_frame = _transport_frame + lrintf(nframes * _transport_speed);
-
- if (_process_graph) {
- _process_graph->silent_process_routes (nframes, start_frame, end_frame, need_butler);
- } else {
- for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
-
- int ret;
-
- if ((*i)->is_auditioner()) {
- continue;
- }
-
- bool b = false;
-
- if ((ret = (*i)->silent_roll (nframes, start_frame, end_frame, b)) < 0) {
+ if ((ret = (*i)->roll (nframes, start_sample, end_sample, declick, b)) < 0) {
stop_transport ();
return -1;
}
if (b) {
+ DEBUG_TRACE (DEBUG::Butler, string_compose ("%1 rolled and needs butler\n", (*i)->name()));
need_butler = true;
}
}
boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
- if (!tr || tr->hidden()) {
+ if (!tr || tr->is_private_route()) {
continue;
}
Session::process_with_events (pframes_t nframes)
{
PT_TIMING_CHECK (3);
-
+
SessionEvent* ev;
pframes_t this_nframes;
- framepos_t end_frame;
+ samplepos_t end_sample;
bool session_needs_butler = false;
- framecnt_t frames_moved;
+ samplecnt_t samples_moved;
/* make sure the auditioner is silent */
process_event (ev);
}
+ /* only count-in when going to roll at speed 1.0 */
+ if (_transport_speed != 1.0 && _count_in_samples > 0) {
+ _count_in_samples = 0;
+ }
+ if (_transport_speed == 0.0) {
+ _remaining_latency_preroll = 0;
+ }
+
+ assert (_count_in_samples == 0 || _remaining_latency_preroll == 0 || _count_in_samples == _remaining_latency_preroll);
+
+ while (_count_in_samples > 0 || _remaining_latency_preroll > 0) {
+ samplecnt_t ns;
+
+ if (_remaining_latency_preroll > 0) {
+ ns = std::min ((samplecnt_t)nframes, _remaining_latency_preroll);
+ } else {
+ ns = std::min ((samplecnt_t)nframes, _count_in_samples);
+ }
+
+ boost::shared_ptr<RouteList> r = routes.reader ();
+ for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+ samplecnt_t route_offset = (*i)->playback_latency ();
+ if (_remaining_latency_preroll > route_offset + ns) {
+ /* route will no-roll for complete pre-roll cycle */
+ continue;
+ }
+ if (_remaining_latency_preroll > route_offset) {
+ /* route may need partial no-roll and partial roll from
+ * (_transport_sample - _remaining_latency_preroll) .. +ns.
+ * shorten and split the cycle.
+ */
+ ns = std::min (ns, (_remaining_latency_preroll - route_offset));
+ }
+ }
+
+ if (_count_in_samples > 0) {
+ run_click (_transport_sample - _count_in_samples, ns);
+ assert (_count_in_samples >= ns);
+ _count_in_samples -= ns;
+ }
+
+ if (_remaining_latency_preroll > 0) {
+ if (_count_in_samples == 0) {
+ click (_transport_sample - _remaining_latency_preroll, ns);
+ }
+ if (process_routes (ns, session_needs_butler)) {
+ fail_roll (ns);
+ }
+ } else {
+ no_roll (ns);
+ }
+
+ if (_remaining_latency_preroll > 0) {
+ assert (_remaining_latency_preroll >= ns);
+ _remaining_latency_preroll -= ns;
+ }
+
+ nframes -= ns;
+
+ /* process events.. */
+ if (!events.empty() && next_event != events.end()) {
+ SessionEvent* this_event = *next_event;
+ Events::iterator the_next_one = next_event;
+ ++the_next_one;
+
+ while (this_event && this_event->action_sample == _transport_sample) {
+ process_event (this_event);
+ if (the_next_one == events.end()) {
+ this_event = 0;
+ } else {
+ this_event = *the_next_one;
+ ++the_next_one;
+ }
+ }
+ set_next_event ();
+ }
+
+ check_declick_out ();
+
+ if (nframes == 0) {
+ return;
+ } else {
+ _engine.split_cycle (ns);
+ }
+ }
+
/* Decide on what to do with quarter-frame MTC during this cycle */
bool const was_sending_qf_mtc = _send_qf_mtc;
_send_timecode_update = true;
}
- if (Config->get_send_mtc() && !_send_qf_mtc && _pframes_since_last_mtc > (frame_rate () / 4)) {
+ if (Config->get_send_mtc() && !_send_qf_mtc && _pframes_since_last_mtc > (sample_rate () / 4)) {
/* we're sending MTC, but we're not sending QF MTC at the moment, and it's been
a quarter of a second since we sent anything at all, so send a full MTC update
this cycle.
* and prepare for rolling)
*/
if (_send_timecode_update) {
- send_full_time_code (_transport_frame, nframes);
+ send_full_time_code (_transport_sample, nframes);
}
if (!process_can_proceed()) {
}
if (events.empty() || next_event == events.end()) {
- process_without_events (nframes);
- return;
+ try_run_lua (nframes); // also during export ?? ->move to process_without_events()
+ /* lua scripts may inject events */
+ while (_n_lua_scripts > 0 && pending_events.read (&ev, 1) == 1) {
+ merge_event (ev);
+ }
+ if (events.empty() || next_event == events.end()) {
+ process_without_events (nframes);
+ return;
+ }
}
if (_transport_speed == 1.0) {
- frames_moved = (framecnt_t) nframes;
+ samples_moved = (samplecnt_t) nframes;
} else {
- interpolation.set_target_speed (_target_transport_speed);
- interpolation.set_speed (_transport_speed);
- frames_moved = (framecnt_t) interpolation.interpolate (0, nframes, 0, 0);
+ /* use a cubic midi interpolation to compute the number of
+ * samples we will move at the current speed.
+ */
+ CubicInterpolation interp;
+ interp.set_speed (_transport_speed);
+ samples_moved = interp.distance (nframes);
}
- end_frame = _transport_frame + frames_moved;
+ end_sample = _transport_sample + samples_moved;
{
SessionEvent* this_event;
}
if (!_exporting && !timecode_transmission_suspended()) {
- send_midi_time_code_for_cycle (_transport_frame, end_frame, nframes);
+ send_midi_time_code_for_cycle (_transport_sample, end_sample, nframes);
}
- framepos_t stop_limit = compute_stop_limit ();
+ ltc_tx_send_time_code_for_cycle (_transport_sample, end_sample, _target_transport_speed, _transport_speed, nframes);
+
+ samplepos_t stop_limit = compute_stop_limit ();
if (maybe_stop (stop_limit)) {
no_roll (nframes);
while (nframes) {
this_nframes = nframes; /* real (jack) time relative */
- frames_moved = (framecnt_t) floor (_transport_speed * nframes); /* transport relative */
+ samples_moved = (samplecnt_t) floor (_transport_speed * nframes); /* transport relative */
/* running an event, position transport precisely to its time */
- if (this_event && this_event->action_frame <= end_frame && this_event->action_frame >= _transport_frame) {
+ if (this_event && this_event->action_sample <= end_sample && this_event->action_sample >= _transport_sample) {
/* this isn't quite right for reverse play */
- frames_moved = (framecnt_t) (this_event->action_frame - _transport_frame);
- this_nframes = abs (floor(frames_moved / _transport_speed));
+ samples_moved = (samplecnt_t) (this_event->action_sample - _transport_sample);
+ this_nframes = abs (floor(samples_moved / _transport_speed));
}
+ try_run_lua (this_nframes);
+
if (this_nframes) {
- click (_transport_frame, this_nframes);
+ click (_transport_sample, this_nframes);
if (process_routes (this_nframes, session_needs_butler)) {
fail_roll (nframes);
nframes -= this_nframes;
- if (frames_moved < 0) {
- decrement_transport_position (-frames_moved);
- } else {
- increment_transport_position (frames_moved);
+ if (samples_moved < 0) {
+ decrement_transport_position (-samples_moved);
+ } else if (samples_moved) {
+ increment_transport_position (samples_moved);
}
maybe_stop (stop_limit);
check_declick_out ();
}
- _engine.split_cycle (this_nframes);
+ if (nframes > 0) {
+ _engine.split_cycle (this_nframes);
+ }
/* now handle this event and all others scheduled for the same time */
- while (this_event && this_event->action_frame == _transport_frame) {
+ while (this_event && this_event->action_sample == _transport_sample) {
process_event (this_event);
if (the_next_one == events.end()) {
}
/* this is necessary to handle the case of seamless looping */
- end_frame = _transport_frame + floor (nframes * _transport_speed);
+ end_sample = _transport_sample + floor (nframes * _transport_speed);
}
set_next_event ();
} /* implicit release of route lock */
if (session_needs_butler) {
+ DEBUG_TRACE (DEBUG::Butler, "p-with-events: session needs butler, call it\n");
_butler->summon ();
}
}
delta_accumulator_cnt = 0;
have_first_delta_accumulator = false;
_slave_state = Stopped;
+ DiskReader::set_no_disk_output (false);
}
bool
Session::follow_slave (pframes_t nframes)
{
double slave_speed;
- framepos_t slave_transport_frame;
- framecnt_t this_delta;
+ samplepos_t slave_transport_sample;
+ samplecnt_t this_delta;
int dir;
if (!_slave->ok()) {
goto noroll;
}
- _slave->speed_and_position (slave_speed, slave_transport_frame);
+ _slave->speed_and_position (slave_speed, slave_transport_sample);
- DEBUG_TRACE (DEBUG::Slave, string_compose ("Slave position %1 speed %2\n", slave_transport_frame, slave_speed));
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("Slave position %1 speed %2\n", slave_transport_sample, slave_speed));
if (!_slave->locked()) {
DEBUG_TRACE (DEBUG::Slave, "slave not locked\n");
goto noroll;
}
- if (slave_transport_frame > _transport_frame) {
- this_delta = slave_transport_frame - _transport_frame;
+ if (slave_transport_sample > _transport_sample) {
+ this_delta = slave_transport_sample - _transport_sample;
dir = 1;
} else {
- this_delta = _transport_frame - slave_transport_frame;
+ this_delta = _transport_sample - slave_transport_sample;
dir = -1;
}
*/
if (_slave_state == Running) {
- calculate_moving_average_of_slave_delta(dir, this_delta);
+ calculate_moving_average_of_slave_delta(dir, abs(this_delta));
}
}
- track_slave_state (slave_speed, slave_transport_frame, this_delta);
+ track_slave_state (slave_speed, slave_transport_sample, this_delta);
DEBUG_TRACE (DEBUG::Slave, string_compose ("slave state %1 @ %2 speed %3 cur delta %4 avg delta %5\n",
- _slave_state, slave_transport_frame, slave_speed, this_delta, average_slave_delta));
+ _slave_state, slave_transport_sample, slave_speed, this_delta, average_slave_delta));
- if (_slave_state == Running && !_slave->is_always_synced() &&
- !(Config->get_timecode_source_is_synced() && (dynamic_cast<TimecodeSlave*>(_slave)) != 0)
- ) {
+ if (_slave_state == Running && !_slave->is_always_synced() && !(Config->get_timecode_source_is_synced() && (dynamic_cast<TimecodeSlave*>(_slave)) != 0)) {
+
+ /* may need to varispeed to sync with slave */
if (_transport_speed != 0.0f) {
(int) (dir * this_delta),
slave_speed,
_transport_speed,
- _transport_frame,
- slave_transport_frame,
+ _transport_sample,
+ slave_transport_sample,
average_slave_delta));
}
#endif
if (_slave->give_slave_full_control_over_transport_speed()) {
- set_transport_speed (slave_speed, false, false);
+ set_transport_speed (slave_speed, 0, false, false);
//std::cout << "set speed = " << slave_speed << "\n";
} else {
- float adjusted_speed = slave_speed + (1.5 * (delta / float(_current_frame_rate)));
+ float adjusted_speed = slave_speed + (1.5 * (delta / float(_current_sample_rate)));
request_transport_speed (adjusted_speed);
DEBUG_TRACE (DEBUG::Slave, string_compose ("adjust using %1 towards %2 ratio %3 current %4 slave @ %5\n",
delta, adjusted_speed, adjusted_speed/slave_speed, _transport_speed,
slave_speed));
}
-#if 1
- if (!actively_recording() && (framecnt_t) abs(average_slave_delta) > _slave->resolution()) {
- cerr << "average slave delta greater than slave resolution (" << _slave->resolution() << "), going to silent motion\n";
- goto silent_motion;
+ if (!actively_recording() && (samplecnt_t) average_slave_delta > _slave->resolution()) {
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("average slave delta %1 greater than slave resolution %2 => no disk output\n", average_slave_delta, _slave->resolution()));
+ /* run routes as normal, but no disk output */
+ DiskReader::set_no_disk_output (true);
+ return true;
+ }
+
+ if (!have_first_delta_accumulator) {
+ DEBUG_TRACE (DEBUG::Slave, "waiting for first slave delta accumulator to be ready, no disk output\n");
+ /* run routes as normal, but no disk output */
+ DiskReader::set_no_disk_output (true);
+ return true;
}
-#endif
}
}
- if (_slave_state == Running && !non_realtime_work_pending()) {
+ if (!have_first_delta_accumulator) {
+ DEBUG_TRACE (DEBUG::Slave, "still waiting to compute slave delta, no disk output\n");
+ DiskReader::set_no_disk_output (true);
+ } else {
+ DiskReader::set_no_disk_output (false);
+ }
+
+ if ((_slave_state == Running) && (0 == (post_transport_work () & ~PostTransportSpeed))) {
/* speed is set, we're locked, and good to go */
return true;
}
- silent_motion:
- DEBUG_TRACE (DEBUG::Slave, "silent motion\n")
- follow_slave_silently (nframes, slave_speed);
-
noroll:
/* don't move at all */
DEBUG_TRACE (DEBUG::Slave, "no roll\n")
}
void
-Session::calculate_moving_average_of_slave_delta (int dir, framecnt_t this_delta)
+Session::calculate_moving_average_of_slave_delta (int dir, samplecnt_t this_delta)
{
if (delta_accumulator_cnt >= delta_accumulator_size) {
have_first_delta_accumulator = true;
delta_accumulator_cnt = 0;
}
- if (delta_accumulator_cnt != 0 || this_delta < _current_frame_rate) {
- delta_accumulator[delta_accumulator_cnt++] = (framecnt_t) dir * (framecnt_t) this_delta;
+ if (delta_accumulator_cnt != 0 || this_delta < _current_sample_rate) {
+ delta_accumulator[delta_accumulator_cnt++] = (samplecnt_t) dir * (samplecnt_t) this_delta;
}
if (have_first_delta_accumulator) {
average_slave_delta /= (int32_t) delta_accumulator_size;
if (average_slave_delta < 0L) {
average_dir = -1;
- average_slave_delta = abs(average_slave_delta);
+ average_slave_delta = average_slave_delta;
} else {
average_dir = 1;
}
}
void
-Session::track_slave_state (float slave_speed, framepos_t slave_transport_frame, framecnt_t /*this_delta*/)
+Session::track_slave_state (float slave_speed, samplepos_t slave_transport_sample, samplecnt_t /*this_delta*/)
{
if (slave_speed != 0.0f) {
switch (_slave_state) {
case Stopped:
if (_slave->requires_seekahead()) {
- slave_wait_end = slave_transport_frame + _slave->seekahead_distance ();
+ slave_wait_end = slave_transport_sample + _slave->seekahead_distance ();
DEBUG_TRACE (DEBUG::Slave, string_compose ("slave stopped, but running, requires seekahead to %1\n", slave_wait_end));
/* we can call locate() here because we are in process context */
locate (slave_wait_end, false, false);
} else {
- DEBUG_TRACE (DEBUG::Slave, string_compose ("slave stopped -> running at %1\n", slave_transport_frame));
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("slave stopped -> running at %1\n", slave_transport_sample));
memset (delta_accumulator, 0, sizeof (int32_t) * delta_accumulator_size);
average_slave_delta = 0L;
Location* al = _locations->auto_loop_location();
- if (al && play_loop && (slave_transport_frame < al->start() || slave_transport_frame > al->end())) {
+ if (al && play_loop && (slave_transport_sample < al->start() || slave_transport_sample > al->end())) {
// cancel looping
request_play_loop(false);
}
- if (slave_transport_frame != _transport_frame) {
- DEBUG_TRACE (DEBUG::Slave, string_compose ("require locate to run. eng: %1 -> sl: %2\n", _transport_frame, slave_transport_frame));
- locate (slave_transport_frame, false, false);
+ if (slave_transport_sample != _transport_sample) {
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("require locate to run. eng: %1 -> sl: %2\n", _transport_sample, slave_transport_sample));
+ locate (slave_transport_sample, false, false);
}
_slave_state = Running;
}
if (_slave_state == Waiting) {
- DEBUG_TRACE (DEBUG::Slave, string_compose ("slave waiting at %1\n", slave_transport_frame));
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("slave waiting at %1\n", slave_transport_sample));
- if (slave_transport_frame >= slave_wait_end) {
+ if (slave_transport_sample >= slave_wait_end) {
- DEBUG_TRACE (DEBUG::Slave, string_compose ("slave start at %1 vs %2\n", slave_transport_frame, _transport_frame));
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("slave start at %1 vs %2\n", slave_transport_sample, _transport_sample));
_slave_state = Running;
bool ok = true;
- framecnt_t frame_delta = slave_transport_frame - _transport_frame;
+ samplecnt_t sample_delta = slave_transport_sample - _transport_sample;
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->can_internal_playback_seek (frame_delta)) {
+ if (tr && !tr->can_internal_playback_seek (sample_delta)) {
ok = false;
break;
}
for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
if (tr) {
- tr->internal_playback_seek (frame_delta);
+ tr->internal_playback_seek (sample_delta);
}
}
- _transport_frame += frame_delta;
+ _transport_sample += sample_delta;
} else {
cerr << "cannot micro-seek\n";
/* slave has stopped */
if (_transport_speed != 0.0f) {
- DEBUG_TRACE (DEBUG::Slave, string_compose ("slave stops transport: %1 frame %2 tf %3\n", slave_speed, slave_transport_frame, _transport_frame));
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("slave stops transport: %1 sample %2 tf %3\n", slave_speed, slave_transport_sample, _transport_sample));
stop_transport ();
}
- if (slave_transport_frame != _transport_frame) {
- DEBUG_TRACE (DEBUG::Slave, string_compose ("slave stopped, move to %1\n", slave_transport_frame));
- force_locate (slave_transport_frame, false);
+ if (slave_transport_sample != _transport_sample) {
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("slave stopped, move to %1\n", slave_transport_sample));
+ force_locate (slave_transport_sample, false);
}
reset_slave_state();
}
}
-void
-Session::follow_slave_silently (pframes_t nframes, float slave_speed)
-{
- if (slave_speed && _transport_speed) {
-
- /* something isn't right, but we should move with the master
- for now.
- */
-
- bool need_butler;
-
- silent_process_routes (nframes, need_butler);
-
- get_track_statistics ();
-
- if (need_butler) {
- _butler->summon ();
- }
-
- int32_t frames_moved = (int32_t) floor (_transport_speed * nframes);
-
- if (frames_moved < 0) {
- decrement_transport_position (-frames_moved);
- } else {
- increment_transport_position (frames_moved);
- }
-
- framepos_t const stop_limit = compute_stop_limit ();
- maybe_stop (stop_limit);
- }
-}
-
void
Session::process_without_events (pframes_t nframes)
{
bool session_needs_butler = false;
- framecnt_t frames_moved;
+ samplecnt_t samples_moved;
if (!process_can_proceed()) {
_silent = true;
if (!_exporting && _slave) {
if (!follow_slave (nframes)) {
- ltc_tx_send_time_code_for_cycle (_transport_frame, _transport_frame, 0, 0 , nframes);
+ ltc_tx_send_time_code_for_cycle (_transport_sample, _transport_sample, 0, 0 , nframes);
return;
}
}
if (_transport_speed == 0) {
- fail_roll (nframes);
+ no_roll (nframes);
return;
}
if (_transport_speed == 1.0) {
- frames_moved = (framecnt_t) nframes;
+ samples_moved = (samplecnt_t) nframes;
} else {
- interpolation.set_target_speed (_target_transport_speed);
interpolation.set_speed (_transport_speed);
- frames_moved = (framecnt_t) interpolation.interpolate (0, nframes, 0, 0);
+ samples_moved = interpolation.distance (nframes);
}
if (!_exporting && !timecode_transmission_suspended()) {
- send_midi_time_code_for_cycle (_transport_frame, _transport_frame + frames_moved, nframes);
+ send_midi_time_code_for_cycle (_transport_sample, _transport_sample + samples_moved, nframes);
}
- ltc_tx_send_time_code_for_cycle (_transport_frame, _transport_frame + frames_moved, _target_transport_speed, _transport_speed, nframes);
+ ltc_tx_send_time_code_for_cycle (_transport_sample, _transport_sample + samples_moved, _target_transport_speed, _transport_speed, nframes);
- framepos_t const stop_limit = compute_stop_limit ();
+ samplepos_t const stop_limit = compute_stop_limit ();
if (maybe_stop (stop_limit)) {
- fail_roll (nframes);
+ no_roll (nframes);
return;
}
return;
}
- click (_transport_frame, nframes);
+ click (_transport_sample, nframes);
if (process_routes (nframes, session_needs_butler)) {
fail_roll (nframes);
get_track_statistics ();
- if (frames_moved < 0) {
- decrement_transport_position (-frames_moved);
- } else {
- increment_transport_position (frames_moved);
+ if (samples_moved < 0) {
+ decrement_transport_position (-samples_moved);
+ } else if (samples_moved) {
+ increment_transport_position (samples_moved);
}
maybe_stop (stop_limit);
check_declick_out ();
if (session_needs_butler) {
+ DEBUG_TRACE (DEBUG::Butler, "p-without-events: session needs butler, call it\n");
_butler->summon ();
}
}
/** Process callback used when the auditioner is active.
- * @param nframes number of frames to process.
+ * @param nframes number of samples to process.
*/
void
Session::process_audition (pframes_t nframes)
/* run the auditioner, and if it says we need butler service, ask for it */
if (auditioner->play_audition (nframes) > 0) {
+ DEBUG_TRACE (DEBUG::Butler, "auditioner needs butler, call it\n");
_butler->summon ();
}
/* if using a monitor section, run it because otherwise we don't hear anything */
- if (auditioner->needs_monitor()) {
- _monitor_out->monitor_run (_transport_frame, _transport_frame + nframes, nframes, false);
+ if (_monitor_out && auditioner->needs_monitor()) {
+ _monitor_out->monitor_run (_transport_sample, _transport_sample + nframes, nframes, false);
}
/* handle pending events */
} else if (_state_of_the_state & Loading) {
merge_event (ev);
} else {
+ Glib::Threads::Mutex::Lock lm (rb_write_lock);
pending_events.write (&ev, 1);
}
}
next_event = events.begin();
}
- if ((*next_event)->action_frame > _transport_frame) {
+ if ((*next_event)->action_sample > _transport_sample) {
next_event = events.begin();
}
for (; next_event != events.end(); ++next_event) {
- if ((*next_event)->action_frame >= _transport_frame) {
+ if ((*next_event)->action_sample >= _transport_sample) {
break;
}
}
}
}
- DEBUG_TRACE (DEBUG::SessionEvents, string_compose ("Processing event: %1 @ %2\n", enum_2_string (ev->type), _transport_frame));
+ DEBUG_TRACE (DEBUG::SessionEvents, string_compose ("Processing event: %1 @ %2\n", enum_2_string (ev->type), _transport_sample));
switch (ev->type) {
case SessionEvent::SetLoop:
- set_play_loop (ev->yes_or_no);
+ set_play_loop (ev->yes_or_no, ev->speed);
break;
case SessionEvent::AutoLoop:
/* roll after locate, do not flush, set "with loop"
true only if we are seamless looping
*/
- start_locate (ev->target_frame, true, false, Config->get_seamless_loop());
+ start_locate (ev->target_sample, true, false, Config->get_seamless_loop());
}
remove = false;
del = false;
break;
case SessionEvent::Locate:
- if (ev->yes_or_no) {
+ if (ev->yes_or_no) { /* force locate */
/* args: do not roll after locate, do flush, not with loop */
- locate (ev->target_frame, false, true, false);
+ locate (ev->target_sample, false, true, false);
} else {
/* args: do not roll after locate, do flush, not with loop */
- start_locate (ev->target_frame, false, true, false);
+ start_locate (ev->target_sample, false, true, false);
}
_send_timecode_update = true;
break;
case SessionEvent::LocateRoll:
if (ev->yes_or_no) {
/* args: roll after locate, do flush, not with loop */
- locate (ev->target_frame, true, true, false);
+ locate (ev->target_sample, true, true, false);
} else {
/* args: roll after locate, do flush, not with loop */
- start_locate (ev->target_frame, true, true, false);
+ start_locate (ev->target_sample, true, true, false);
}
_send_timecode_update = true;
break;
+ case SessionEvent::Skip:
+ if (Config->get_skip_playback()) {
+ start_locate (ev->target_sample, true, true, false);
+ _send_timecode_update = true;
+ }
+ remove = false;
+ del = false;
+ break;
+
case SessionEvent::LocateRollLocate:
// locate is handled by ::request_roll_at_and_return()
- _requested_return_frame = ev->target_frame;
- request_locate (ev->target2_frame, true);
+ _requested_return_sample = ev->target_sample;
+ request_locate (ev->target2_sample, true);
break;
case SessionEvent::SetTransportSpeed:
- set_transport_speed (ev->speed, ev->yes_or_no, ev->second_yes_or_no, ev->third_yes_or_no);
+ set_transport_speed (ev->speed, ev->target_sample, ev->yes_or_no, ev->second_yes_or_no, ev->third_yes_or_no);
break;
case SessionEvent::PunchIn:
- // cerr << "PunchIN at " << transport_frame() << endl;
+ // cerr << "PunchIN at " << transport_sample() << endl;
if (config.get_punch_in() && record_status() == Enabled) {
enable_record ();
}
break;
case SessionEvent::PunchOut:
- // cerr << "PunchOUT at " << transport_frame() << endl;
+ // cerr << "PunchOUT at " << transport_sample() << endl;
if (config.get_punch_out()) {
step_back_from_record ();
}
case SessionEvent::StopOnce:
if (!non_realtime_work_pending()) {
- stop_transport (ev->yes_or_no);
_clear_event_type (SessionEvent::StopOnce);
+ stop_transport (ev->yes_or_no);
}
remove = false;
del = false;
case SessionEvent::RangeLocate:
/* args: roll after locate, do flush, not with loop */
- start_locate (ev->target_frame, true, true, false);
+ start_locate (ev->target_sample, true, true, false);
remove = false;
del = false;
break;
overwrite_some_buffers (static_cast<Track*>(ev->ptr));
break;
- case SessionEvent::SetTrackSpeed:
- set_track_speed (static_cast<Track*> (ev->ptr), ev->speed);
- break;
-
case SessionEvent::SetSyncSource:
DEBUG_TRACE (DEBUG::Slave, "seen request for new slave\n");
use_sync_source (ev->slave);
ev->region.reset ();
break;
- case SessionEvent::InputConfigurationChange:
- add_post_transport_work (PostTransportInputChange);
- _butler->schedule_transport_work ();
- break;
-
case SessionEvent::SetPlayAudioRange:
set_play_range (ev->audio_range, (ev->speed == 1.0f));
break;
+ case SessionEvent::CancelPlayAudioRange:
+ unset_play_range();
+ break;
+
case SessionEvent::RealTimeOperation:
process_rtop (ev);
del = false; // other side of RT request needs to clean up
default:
fatal << string_compose(_("Programming error: illegal event type in process_event (%1)"), ev->type) << endmsg;
- /*NOTREACHED*/
+ abort(); /*NOTREACHED*/
break;
};
}
}
-framepos_t
+samplepos_t
Session::compute_stop_limit () const
{
if (!Config->get_stop_at_session_end ()) {
- return max_framepos;
+ return max_samplepos;
}
if (_slave) {
- return max_framepos;
+ return max_samplepos;
}
-
bool const punching_in = (config.get_punch_in () && _locations->auto_punch_location());
bool const punching_out = (config.get_punch_out () && _locations->auto_punch_location());
if (actively_recording ()) {
/* permanently recording */
- return max_framepos;
+ return max_samplepos;
} else if (punching_in && !punching_out) {
/* punching in but never out */
- return max_framepos;
- } else if (punching_in && punching_out && _locations->auto_punch_location()->end() > current_end_frame()) {
+ return max_samplepos;
+ } else if (punching_in && punching_out && _locations->auto_punch_location()->end() > current_end_sample()) {
/* punching in and punching out after session end */
- return max_framepos;
+ return max_samplepos;
}
- return current_end_frame ();
+ return current_end_sample ();
+}
+
+
+
+/* dedicated thread for signal emission.
+ *
+ * while sending cross-thread signals from the process thread
+ * is fine in general, PBD::Signal's use of boost::function and
+ * boost:bind can produce a vast overhead which is not
+ * acceptable for low latency.
+ *
+ * This works around the issue by moving the boost overhead
+ * out of the RT thread. The overall load is probably higher but
+ * the realtime thread remains unaffected.
+ */
+
+void
+Session::emit_route_signals ()
+{
+ // TODO use RAII to allow using these signals in other places
+ BatchUpdateStart(); /* EMIT SIGNAL */
+ boost::shared_ptr<RouteList> r = routes.reader ();
+ for (RouteList::const_iterator ci = r->begin(); ci != r->end(); ++ci) {
+ (*ci)->emit_pending_signals ();
+ }
+ BatchUpdateEnd(); /* EMIT SIGNAL */
+}
+
+void
+Session::emit_thread_start ()
+{
+ if (_rt_thread_active) {
+ return;
+ }
+ _rt_thread_active = true;
+
+ if (pthread_create (&_rt_emit_thread, NULL, emit_thread, this)) {
+ _rt_thread_active = false;
+ }
+}
+
+void
+Session::emit_thread_terminate ()
+{
+ if (!_rt_thread_active) {
+ return;
+ }
+ _rt_thread_active = false;
+
+ if (pthread_mutex_lock (&_rt_emit_mutex) == 0) {
+ pthread_cond_signal (&_rt_emit_cond);
+ pthread_mutex_unlock (&_rt_emit_mutex);
+ }
+
+ void *status;
+ pthread_join (_rt_emit_thread, &status);
+}
+
+void *
+Session::emit_thread (void *arg)
+{
+ Session *s = static_cast<Session *>(arg);
+ s->emit_thread_run ();
+ pthread_exit (0);
+ return 0;
+}
+
+void
+Session::emit_thread_run ()
+{
+ pthread_mutex_lock (&_rt_emit_mutex);
+ while (_rt_thread_active) {
+ emit_route_signals();
+ pthread_cond_wait (&_rt_emit_cond, &_rt_emit_mutex);
+ }
+ pthread_mutex_unlock (&_rt_emit_mutex);
}