#include <unistd.h>
#include "pbd/error.h"
+#include "pbd/enumwriter.h"
#include <glibmm/thread.h>
void
Session::process (nframes_t nframes)
{
- // This is no more the appropriate place to call cycle
- // start. cycle_start needs to be called at the Route::roll()
- // where the signals which we want to mixdown have been calculated.
- //
MIDI::Manager::instance()->cycle_start(nframes);
_silent = false;
void
Session::process_with_events (nframes_t nframes)
{
- Event* ev;
+ SessionEvent* ev;
nframes_t this_nframes;
nframes_t end_frame;
bool session_needs_butler = false;
*/
while (!non_realtime_work_pending() && !immediate_events.empty()) {
- Event *ev = immediate_events.front ();
+ SessionEvent *ev = immediate_events.front ();
immediate_events.pop_front ();
process_event (ev);
}
end_frame = _transport_frame + (nframes_t)frames_moved;
{
- Event* this_event;
+ SessionEvent* this_event;
Events::iterator the_next_one;
if (!process_can_proceed()) {
average_slave_delta = 1800;
delta_accumulator_cnt = 0;
have_first_delta_accumulator = false;
- slave_state = Stopped;
+ _slave_state = Stopped;
}
bool
nframes64_t slave_transport_frame;
nframes_t this_delta;
int dir;
- bool starting;
if (!_slave->ok()) {
stop_transport ();
_slave->speed_and_position (slave_speed, slave_transport_frame);
- DEBUG_TRACE (DEBUG::Slave, string_compose ("Slave @ %2 speed %1\n", slave_speed, slave_transport_frame));
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("Slave position %1 speed %2\n", slave_transport_frame, slave_speed));
if (!_slave->locked()) {
+ DEBUG_TRACE (DEBUG::Slave, "slave not locked\n");
goto noroll;
}
dir = -1;
}
- if ((starting = _slave->starting())) {
+ if (_slave->starting()) {
slave_speed = 0.0f;
}
} else {
- /* TC source is able to drift relative to us (slave)
- so we need to keep track of the drift and adjust
- our speed to remain locked.
+ /* if we are chasing and the average delta between us and the
+ master gets too big, we want to switch to silent
+ motion. so keep track of that here.
*/
- calculate_moving_average_of_slave_delta(dir, this_delta);
+ if (_slave_state == Running) {
+ calculate_moving_average_of_slave_delta(dir, this_delta);
+ }
}
- track_slave_state(slave_speed, slave_transport_frame, this_delta, starting);
+ track_slave_state (slave_speed, slave_transport_frame, 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));
+
- if (slave_state == Running && !_slave->is_always_synced() && !config.get_timecode_source_is_synced()) {
+ if (_slave_state == Running && !_slave->is_always_synced() && !config.get_timecode_source_is_synced()) {
if (_transport_speed != 0.0f) {
float delta;
-#ifdef USE_MOVING_AVERAGE_OF_SLAVE
if (average_slave_delta == 0) {
delta = this_delta;
delta *= dir;
delta = average_slave_delta;
delta *= average_dir;
}
-#else
- delta = this_delta;
- delta *= dir;
-#endif
- if (fabs(delta) > engine().frames_per_cycle()) {
- /* too far off, so locate and keep rolling */
- DEBUG_TRACE (DEBUG::Slave, string_compose ("slave delta is too big, locate to %1\n", slave_transport_frame));
- request_locate (slave_transport_frame, true);
+#ifndef NDEBUG
+ if (slave_speed != 0.0) {
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("delta = %1 speed = %2 ts = %3 M@%4 S@%5 avgdelta %6\n",
+ (int) (dir * this_delta),
+ slave_speed,
+ _transport_speed,
+ _transport_frame,
+ slave_transport_frame,
+ average_slave_delta));
+ }
+#endif
+
+ if (_slave->give_slave_full_control_over_transport_speed()) {
+ set_transport_speed (slave_speed, false, false);
+ //std::cout << "set speed = " << slave_speed << "\n";
} else {
- float adjusted_speed = slave_speed + (delta / float(_current_frame_rate));
-
- if (_slave->give_slave_full_control_over_transport_speed()) {
- request_transport_speed(slave_speed);
- } else {
- 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));
- }
+ float adjusted_speed = slave_speed + (1.5 * (delta / float(_current_frame_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 (abs(average_slave_delta) > (long) _slave->resolution()) {
- cerr << "average slave delta greater than slave resolution, going to silent motion\n";
+#if 0
+ if (abs(average_slave_delta) > _slave->resolution()) {
+ cerr << "average slave delta greater than slave resolution (" << _slave->resolution() << "), going to silent motion\n";
goto silent_motion;
}
+#endif
}
}
-#ifndef NDEBUG
- if (slave_speed != 0.0) {
- DEBUG_TRACE (DEBUG::Slave, string_compose ("delta = %1 speed = %2 ts = %3 M@%4 S@%5 avgdelta %6\n",
- (int) (dir * this_delta),
- slave_speed,
- _transport_speed,
- slave_transport_frame,
- _transport_frame,
- average_slave_delta));
- }
-#endif
- if (!starting && !non_realtime_work_pending()) {
+ if (_slave_state == Running && !non_realtime_work_pending()) {
/* speed is set, we're locked, and good to go */
return true;
}
}
void
-Session::track_slave_state(
- float slave_speed,
- nframes_t slave_transport_frame,
- nframes_t this_delta,
- bool starting)
+Session::track_slave_state (float slave_speed, nframes_t slave_transport_frame, nframes_t this_delta)
{
if (slave_speed != 0.0f) {
/* slave is running */
- switch (slave_state) {
+ switch (_slave_state) {
case Stopped:
if (_slave->requires_seekahead()) {
- slave_wait_end = slave_transport_frame + _current_frame_rate;
+ slave_wait_end = slave_transport_frame + _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);
- slave_state = Waiting;
- starting = true;
+ _slave_state = Waiting;
} else {
- slave_state = Running;
+ _slave_state = Running;
Location* al = _locations.auto_loop_location();
break;
case Waiting:
- break;
-
default:
break;
-
}
- if (slave_state == Waiting) {
+ if (_slave_state == Waiting) {
+
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("slave waiting at %1\n", slave_transport_frame));
- #ifdef DEBUG_SLAVES
- cerr << "waiting at " << slave_transport_frame << endl;
- #endif
if (slave_transport_frame >= slave_wait_end) {
-#ifdef DEBUG_SLAVES
- cerr << "\tstart at " << _transport_frame << endl;
-#endif
- slave_state = Running;
+
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("slave start at %1 vs %2\n", slave_transport_frame, _transport_frame));
+
+ _slave_state = Running;
+
+ /* now perform a "micro-seek" within the disk buffers to realign ourselves
+ precisely with the master.
+ */
+
bool ok = true;
nframes_t frame_delta = slave_transport_frame - _transport_frame;
}
}
- if (slave_state == Running && _transport_speed == 0.0f) {
+ if (_slave_state == Running && _transport_speed == 0.0f) {
DEBUG_TRACE (DEBUG::Slave, "slave starts transport\n");
start_transport ();
}
force_locate (slave_transport_frame, false);
}
- slave_state = Stopped;
+ _slave_state = Stopped;
}
}
void
Session::process_audition (nframes_t nframes)
{
- Event* ev;
+ SessionEvent* ev;
boost::shared_ptr<RouteList> r = routes.reader ();
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
*/
while (!non_realtime_work_pending() && !immediate_events.empty()) {
- Event *ev = immediate_events.front ();
+ SessionEvent *ev = immediate_events.front ();
immediate_events.pop_front ();
process_event (ev);
}
return false;
}
+void
+Session::queue_event (SessionEvent* ev)
+{
+ if (_state_of_the_state & Deletion) {
+ return;
+ } else if (_state_of_the_state & Loading) {
+ merge_event (ev);
+ } else {
+ pending_events.write (&ev, 1);
+ }
+}
+
+void
+Session::set_next_event ()
+{
+ if (events.empty()) {
+ next_event = events.end();
+ return;
+ }
+
+ if (next_event == events.end()) {
+ next_event = events.begin();
+ }
+
+ if ((*next_event)->action_frame > _transport_frame) {
+ next_event = events.begin();
+ }
+
+ for (; next_event != events.end(); ++next_event) {
+ if ((*next_event)->action_frame >= _transport_frame) {
+ break;
+ }
+ }
+}
+
+void
+Session::process_event (SessionEvent* ev)
+{
+ bool remove = true;
+ bool del = true;
+
+ /* if we're in the middle of a state change (i.e. waiting
+ for the butler thread to complete the non-realtime
+ part of the change), we'll just have to queue this
+ event for a time when the change is complete.
+ */
+
+ if (non_realtime_work_pending()) {
+
+ /* except locates, which we have the capability to handle */
+
+ if (ev->type != SessionEvent::Locate) {
+ immediate_events.insert (immediate_events.end(), ev);
+ _remove_event (ev);
+ return;
+ }
+ }
+
+ DEBUG_TRACE (DEBUG::SessionEvents, string_compose ("Processing event: %1 @ %2\n", enum_2_string (ev->type), _transport_frame));
+
+ switch (ev->type) {
+ case SessionEvent::SetLoop:
+ set_play_loop (ev->yes_or_no);
+ break;
+
+ case SessionEvent::AutoLoop:
+ if (play_loop) {
+ start_locate (ev->target_frame, true, false, Config->get_seamless_loop());
+ }
+ remove = false;
+ del = false;
+ break;
+
+ case SessionEvent::Locate:
+ if (ev->yes_or_no) {
+ // cerr << "forced locate to " << ev->target_frame << endl;
+ locate (ev->target_frame, false, true, false);
+ } else {
+ // cerr << "soft locate to " << ev->target_frame << endl;
+ start_locate (ev->target_frame, false, true, false);
+ }
+ _send_timecode_update = true;
+ break;
+
+ case SessionEvent::LocateRoll:
+ if (ev->yes_or_no) {
+ // cerr << "forced locate to+roll " << ev->target_frame << endl;
+ locate (ev->target_frame, true, true, false);
+ } else {
+ // cerr << "soft locate to+roll " << ev->target_frame << endl;
+ start_locate (ev->target_frame, true, true, false);
+ }
+ _send_timecode_update = true;
+ 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);
+ break;
+
+
+ case SessionEvent::SetTransportSpeed:
+ set_transport_speed (ev->speed, ev->yes_or_no, ev->second_yes_or_no);
+ break;
+
+ case SessionEvent::PunchIn:
+ // cerr << "PunchIN at " << transport_frame() << endl;
+ if (config.get_punch_in() && record_status() == Enabled) {
+ enable_record ();
+ }
+ remove = false;
+ del = false;
+ break;
+
+ case SessionEvent::PunchOut:
+ // cerr << "PunchOUT at " << transport_frame() << endl;
+ if (config.get_punch_out()) {
+ step_back_from_record ();
+ }
+ remove = false;
+ del = false;
+ break;
+
+ case SessionEvent::StopOnce:
+ if (!non_realtime_work_pending()) {
+ stop_transport (ev->yes_or_no);
+ _clear_event_type (SessionEvent::StopOnce);
+ }
+ remove = false;
+ del = false;
+ break;
+
+ case SessionEvent::RangeStop:
+ if (!non_realtime_work_pending()) {
+ stop_transport (ev->yes_or_no);
+ }
+ remove = false;
+ del = false;
+ break;
+
+ case SessionEvent::RangeLocate:
+ start_locate (ev->target_frame, true, true, false);
+ remove = false;
+ del = false;
+ break;
+
+ case SessionEvent::Overwrite:
+ overwrite_some_buffers (static_cast<Diskstream*>(ev->ptr));
+ break;
+
+ case SessionEvent::SetDiskstreamSpeed:
+ set_diskstream_speed (static_cast<Diskstream*> (ev->ptr), ev->speed);
+ break;
+
+ case SessionEvent::SetSyncSource:
+ use_sync_source (ev->slave);
+ break;
+
+ case SessionEvent::Audition:
+ set_audition (ev->region);
+ // drop reference to region
+ 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::RealTimeOperation:
+ process_rtop (ev);
+ del = false; // other side of RT request needs to clean up
+ break;
+
+ default:
+ fatal << string_compose(_("Programming error: illegal event type in process_event (%1)"), ev->type) << endmsg;
+ /*NOTREACHED*/
+ break;
+ };
+
+ if (remove) {
+ del = del && !_remove_event (ev);
+ }
+
+ if (del) {
+ delete ev;
+ }
+}
+
+void
+Session::process_rtop (SessionEvent* ev)
+{
+ ev->rt_slot ();
+ ev->rt_return (ev);
+}
projects / ardour.git / blobdiff