#include "ardour/revision.h"
#include "ardour/route_graph.h"
#include "ardour/route_group.h"
+#include "ardour/rt_tasklist.h"
#include "ardour/send.h"
#include "ardour/selection.h"
#include "ardour/session.h"
, _session_range_end_is_free (true)
, _slave (0)
, _silent (false)
+ , _remaining_latency_preroll (0)
+ , _engine_speed (1.0)
, _transport_speed (0)
, _default_transport_speed (1.0)
, _last_transport_speed (0)
, _target_transport_speed (0.0)
, auto_play_legal (false)
, _last_slave_transport_sample (0)
- , maximum_output_latency (0)
, _requested_return_sample (-1)
, current_block_size (0)
, _worst_output_latency (0)
, _worst_input_latency (0)
- , _worst_track_latency (0)
- , _worst_track_out_latency (0)
- , _worst_track_roll_delay (0)
+ , _worst_route_latency (0)
+ , _send_latency_changes (0)
, _have_captured (false)
, _non_soloed_outs_muted (false)
, _listening (false)
, _realtime_export (false)
, _region_export (false)
, _export_preroll (0)
- , _export_latency (0)
, _pre_export_mmc_enabled (false)
, _name (snapshot_name)
, _is_new (true)
, _play_range (false)
, _range_selection (-1,-1)
, _object_selection (-1,-1)
- , _preroll_record_punch_pos (-1)
, _preroll_record_trim_len (0)
, _count_in_once (false)
, main_outs (0)
StartTimeChanged.connect_same_thread (*this, boost::bind (&Session::start_time_changed, this, _1));
EndTimeChanged.connect_same_thread (*this, boost::bind (&Session::end_time_changed, this, _1));
+ Send::ChangedLatency.connect_same_thread (*this, boost::bind (&Session::send_latency_compensation_change, this));
+
emit_thread_start ();
auto_connect_thread_start ();
* session or set state for an existing one.
*/
+ _rt_tasklist.reset (new RTTaskList ());
+
if (how_many_dsp_threads () > 1) {
/* For now, only create the graph if we are using >1 DSP threads, as
it is a bit slower than the old code with 1 thread.
case SessionEvent::Skip:
case SessionEvent::PunchIn:
case SessionEvent::PunchOut:
- case SessionEvent::RecordStart:
case SessionEvent::StopOnce:
case SessionEvent::RangeStop:
case SessionEvent::RangeLocate:
{
replace_event (SessionEvent::PunchIn, location->start());
- if (get_record_enabled() && config.get_punch_in()) {
+ if (get_record_enabled() && config.get_punch_in() && !actively_recording ()) {
/* capture start has been changed, so save new pending state */
save_state ("", true);
}
void
Session::auto_punch_end_changed (Location* location)
{
- samplepos_t when_to_stop = location->end();
- // when_to_stop += _worst_output_latency + _worst_input_latency;
- replace_event (SessionEvent::PunchOut, when_to_stop);
+ replace_event (SessionEvent::PunchOut, location->end());
}
void
Session::auto_punch_changed (Location* location)
{
- samplepos_t when_to_stop = location->end();
-
- replace_event (SessionEvent::PunchIn, location->start());
- //when_to_stop += _worst_output_latency + _worst_input_latency;
- replace_event (SessionEvent::PunchOut, when_to_stop);
+ auto_punch_start_changed (location);
+ auto_punch_end_changed (location);
}
/** @param loc A loop location.
if ((existing = _locations->auto_punch_location()) != 0 && existing != location) {
punch_connections.drop_connections();
existing->set_auto_punch (false, this);
- remove_event (existing->start(), SessionEvent::PunchIn);
+ clear_events (SessionEvent::PunchIn);
clear_events (SessionEvent::PunchOut);
auto_punch_location_changed (0);
}
if (!rt_context) {
remove_pending_capture_state ();
}
- unset_preroll_record_punch ();
}
}
}
if (_transport_speed) {
- if (!config.get_punch_in() && !preroll_record_punch_enabled ()) {
+ if (!config.get_punch_in()) {
enable_record ();
}
} else {
samplepos_t
Session::audible_sample (bool* latent_locate) const
{
- samplepos_t ret;
-
- sampleoffset_t offset = worst_playback_latency (); // - _engine.samples_since_cycle_start ();
- offset *= transport_speed ();
if (latent_locate) {
*latent_locate = false;
}
+ samplepos_t ret;
+
if (synced_to_engine()) {
/* Note: this is basically just sync-to-JACK */
ret = _engine.transport_sample();
ret = _transport_sample;
}
- if (transport_rolling()) {
- ret -= offset;
+ assert (ret >= 0);
- /* Check to see if we have passed the first guaranteed
- * audible sample past our last start position. if not,
- * return that last start point because in terms
- * of audible samples, we have not moved yet.
- *
- * `Start position' in this context means the time we last
- * either started, located, or changed transport direction.
- */
-
- if (_transport_speed > 0.0f) {
+ if (!transport_rolling()) {
+ return ret;
+ }
- if (!play_loop || !have_looped) {
- if (ret < _last_roll_or_reversal_location) {
- if (latent_locate) {
- *latent_locate = true;
- }
- return _last_roll_or_reversal_location;
- }
- } else {
- /* the play-position wrapped at the loop-point
- * ardour is already playing the beginning of the loop,
- * but due to playback latency, the "audible frame"
- * is still at the end of the loop.
- */
- Location *location = _locations->auto_loop_location();
- sampleoffset_t lo = location->start() - ret;
- if (lo > 0) {
- ret = location->end () - lo;
- if (latent_locate) {
- *latent_locate = true;
- }
+#if 0 // TODO looping
+ if (_transport_speed > 0.0f) {
+ if (play_loop && have_looped) {
+ /* the play-position wrapped at the loop-point
+ * ardour is already playing the beginning of the loop,
+ * but due to playback latency, the "audible frame"
+ * is still at the end of the loop.
+ */
+ Location *location = _locations->auto_loop_location();
+ sampleoffset_t lo = location->start() - ret;
+ if (lo > 0) {
+ ret = location->end () - lo;
+ if (latent_locate) {
+ *latent_locate = true;
}
}
-
- } else if (_transport_speed < 0.0f) {
-
- /* XXX wot? no backward looping? */
-
- if (ret > _last_roll_or_reversal_location) {
- return _last_roll_or_reversal_location;
- }
}
+ } else if (_transport_speed < 0.0f) {
+ /* XXX wot? no backward looping? */
}
+#endif
return std::max ((samplepos_t)0, ret);
}
-
samplecnt_t
Session::preroll_samples (samplepos_t pos) const
{
}
/* set this name in the XML description that we are about to use */
-
+#warning fixme -- no more Diskstream
if (pd == CopyPlaylist) {
XMLNode* ds_node = find_named_node (node_copy, "Diskstream");
if (ds_node) {
graph_reordered ();
- update_latency (true);
update_latency (false);
+ update_latency (true);
set_dirty();
#ifndef NDEBUG
lua.Print.connect (&_lua_print);
#endif
- lua.tweak_rt_gc ();
lua.sandbox (true);
lua.do_command (
"function ArdourSession ()"
abort(); /*NOTREACHED*/
}
+ lua_mlock (L, 1);
LuaBindings::stddef (L);
LuaBindings::common (L);
LuaBindings::dsp (L);
+ lua_mlock (L, 0);
luabridge::push <Session *> (L, this);
lua_setglobal (L, "Session");
}
resort_routes ();
/* force all diskstreams to update their capture offset values to
- reflect any changes in latencies within the graph.
- */
-
- 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->update_latency_information ();
- }
- }
+ * reflect any changes in latencies within the graph.
+ */
+ update_route_latency (false, true);
}
/** @return Number of samples that there is disk space available to write,
}
void
-Session::update_latency (bool playback)
+Session::set_worst_io_latencies_x (IOChange, void *)
{
+ set_worst_io_latencies ();
+}
- DEBUG_TRACE (DEBUG::Latency, string_compose ("JACK latency callback: %1\n", (playback ? "PLAYBACK" : "CAPTURE")));
-
- if ((_state_of_the_state & (InitialConnecting|Deletion)) || _adding_routes_in_progress || _route_deletion_in_progress) {
- return;
- }
- if (!_engine.running()) {
- return;
- }
+void
+Session::send_latency_compensation_change ()
+{
+ /* As a result of Send::set_output_latency()
+ * or InternalReturn::set_playback_offset ()
+ * the send's own latency can change (source track
+ * is aligned with target bus).
+ *
+ * This can only happen be triggered by
+ * Route::update_signal_latency ()
+ * when updating the processor latency.
+ *
+ * We need to walk the graph again to take those changes into account
+ * (we should probably recurse or process the graph in a 2 step process).
+ */
+ ++_send_latency_changes;
+}
+bool
+Session::update_route_latency (bool playback, bool apply_to_delayline)
+{
+ /* Note: RouteList is process-graph sorted */
boost::shared_ptr<RouteList> r = routes.reader ();
- samplecnt_t max_latency = 0;
if (playback) {
- /* reverse the list so that we work backwards from the last route to run to the first */
- RouteList* rl = routes.reader().get();
- r.reset (new RouteList (*rl));
+ /* reverse the list so that we work backwards from the last route to run to the first,
+ * this is not needed, but can help to reduce the iterations for aux-sends.
+ */
+ RouteList* rl = routes.reader().get();
+ r.reset (new RouteList (*rl));
reverse (r->begin(), r->end());
}
- /* compute actual latency values for the given direction and store them all in per-port
- structures. this will also publish the same values (to JACK) so that computation of latency
- for routes can consistently use public latency values.
- */
+ bool changed = false;
+ int bailout = 0;
+restart:
+ _send_latency_changes = 0;
+ _worst_route_latency = 0;
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
- max_latency = max (max_latency, (*i)->set_private_port_latencies (playback));
+ // if (!(*i)->active()) { continue ; } // TODO
+ samplecnt_t l;
+ if ((*i)->signal_latency () != (l = (*i)->update_signal_latency (apply_to_delayline))) {
+ changed = true;
+ }
+ _worst_route_latency = std::max (l, _worst_route_latency);
}
- /* because we latency compensate playback, our published playback latencies should
- be the same for all output ports - all material played back by ardour has
- the same latency, whether its caused by plugins or by latency compensation. since
- these may differ from the values computed above, reset all playback port latencies
- to the same value.
- */
-
- DEBUG_TRACE (DEBUG::Latency, string_compose ("Set public port latencies to %1\n", max_latency));
-
- for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
- (*i)->set_public_port_latencies (max_latency, playback);
- }
-
- if (playback) {
-
- post_playback_latency ();
-
- } else {
-
- post_capture_latency ();
+ if (_send_latency_changes > 0) {
+ // only 1 extra iteration is needed (we allow only 1 level of aux-sends)
+ // BUT.. jack'n'sends'n'bugs
+ if (++bailout < 5) {
+ cerr << "restarting Session::update_latency. # of send changes: " << _send_latency_changes << " iteration: " << bailout << endl;
+ goto restart;
+ }
}
- DEBUG_TRACE (DEBUG::Latency, "JACK latency callback: DONE\n");
+ DEBUG_TRACE (DEBUG::Latency, string_compose ("worst signal processing latency: %1 (changed ? %2)\n", _worst_route_latency, (changed ? "yes" : "no")));
+
+ return changed;
}
void
-Session::post_playback_latency ()
+Session::update_latency (bool playback)
{
- set_worst_playback_latency ();
+ DEBUG_TRACE (DEBUG::Latency, string_compose ("JACK latency callback: %1\n", (playback ? "PLAYBACK" : "CAPTURE")));
- boost::shared_ptr<RouteList> r = routes.reader ();
+ if ((_state_of_the_state & (InitialConnecting|Deletion)) || _adding_routes_in_progress || _route_deletion_in_progress) {
+ return;
+ }
+ if (!_engine.running()) {
+ return;
+ }
- _worst_track_out_latency = 0;
+ /* Note; RouteList is sorted as process-graph */
+ boost::shared_ptr<RouteList> r = routes.reader ();
- for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
- assert (!(*i)->is_auditioner()); // XXX remove me
- if (!(*i)->active()) { continue ; }
- _worst_track_latency = max (_worst_track_latency, (*i)->update_signal_latency ());
- if (boost::dynamic_pointer_cast<Track> (*i)) {
- _worst_track_out_latency = max (_worst_track_out_latency, (*i)->output ()->latency ());
- }
+ if (playback) {
+ /* reverse the list so that we work backwards from the last route to run to the first */
+ RouteList* rl = routes.reader().get();
+ r.reset (new RouteList (*rl));
+ reverse (r->begin(), r->end());
}
- _worst_track_roll_delay = 0;
-
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
- if (!(*i)->active()) { continue ; }
- (*i)->set_latency_compensation (_worst_track_latency + _worst_track_out_latency - (*i)->output ()->latency ());
- if (boost::dynamic_pointer_cast<Track> (*i)) {
- _worst_track_roll_delay = max (_worst_track_roll_delay, (*i)->initial_delay ());
- }
+ samplecnt_t latency = (*i)->set_private_port_latencies (playback);
+ (*i)->set_public_port_latencies (latency, playback);
}
-}
-void
-Session::post_capture_latency ()
-{
- set_worst_capture_latency ();
-
- /* reflect any changes in capture latencies into capture offsets
- */
-
- 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->update_latency_information ();
- }
+ if (playback) {
+ set_worst_output_latency ();
+ update_route_latency (true, true);
+ } else {
+ set_worst_input_latency ();
+ update_route_latency (false, false);
}
+
+ DEBUG_TRACE (DEBUG::Latency, "JACK latency callback: DONE\n");
}
void
Session::initialize_latencies ()
{
- {
- Glib::Threads::Mutex::Lock lm (_engine.process_lock());
- update_latency (false);
- update_latency (true);
- }
+ {
+ Glib::Threads::Mutex::Lock lm (_engine.process_lock());
+ update_latency (false);
+ update_latency (true);
+ }
- set_worst_io_latencies ();
+ set_worst_io_latencies ();
}
void
Session::set_worst_io_latencies ()
{
- set_worst_playback_latency ();
- set_worst_capture_latency ();
+ set_worst_output_latency ();
+ set_worst_input_latency ();
}
void
-Session::set_worst_playback_latency ()
+Session::set_worst_output_latency ()
{
if (_state_of_the_state & (InitialConnecting|Deletion)) {
return;
_worst_output_latency = max (_worst_output_latency, (*i)->output()->latency());
}
+ _worst_output_latency = max (_worst_output_latency, _click_io->latency());
+
DEBUG_TRACE (DEBUG::Latency, string_compose ("Worst output latency: %1\n", _worst_output_latency));
}
void
-Session::set_worst_capture_latency ()
+Session::set_worst_input_latency ()
{
if (_state_of_the_state & (InitialConnecting|Deletion)) {
return;
_worst_input_latency = max (_worst_input_latency, (*i)->input()->latency());
}
- DEBUG_TRACE (DEBUG::Latency, string_compose ("Worst input latency: %1\n", _worst_input_latency));
+ DEBUG_TRACE (DEBUG::Latency, string_compose ("Worst input latency: %1\n", _worst_input_latency));
}
void
Session::update_latency_compensation (bool force_whole_graph)
{
- bool some_track_latency_changed = false;
-
if (_state_of_the_state & (InitialConnecting|Deletion)) {
return;
}
- DEBUG_TRACE(DEBUG::Latency, "---------------------------- update latency compensation\n\n");
-
- _worst_track_latency = 0;
-
- boost::shared_ptr<RouteList> r = routes.reader ();
-
- for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
- assert (!(*i)->is_auditioner()); // XXX remove me
- if ((*i)->active()) {
- samplecnt_t tl;
- if ((*i)->signal_latency () != (tl = (*i)->update_signal_latency ())) {
- some_track_latency_changed = true;
- }
- _worst_track_latency = max (tl, _worst_track_latency);
- }
- }
-
- DEBUG_TRACE (DEBUG::Latency, string_compose ("worst signal processing latency: %1 (changed ? %2)\n", _worst_track_latency,
- (some_track_latency_changed ? "yes" : "no")));
-
- DEBUG_TRACE(DEBUG::Latency, "---------------------------- DONE update latency compensation\n\n");
+ bool some_track_latency_changed = update_route_latency (false, false);
if (some_track_latency_changed || force_whole_graph) {
_engine.update_latencies ();
- }
-
-
- for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
- boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
- if (!tr) {
- continue;
+ /* above call will ask the backend up update its latencies, which
+ * eventually will trigger AudioEngine::latency_callback () and
+ * call Session::update_latency ()
+ */
+ } else {
+ boost::shared_ptr<RouteList> r = routes.reader ();
+ for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+ (*i)->apply_latency_compensation ();
}
- tr->update_latency_information ();
}
}
/* this is only used for updating plugin latencies, the
* graph does not change. so it's safe in general.
* BUT..
- * .. update_latency_compensation () entails Track::update_latency_information()
- * which calls DiskWriter::set_capture_offset () which
- * modifies the capture offset... which can be a proplem
- * in "prepare_to_stop"
+ * update_latency_compensation ()
+ * calls DiskWriter::set_capture_offset () which
+ * modifies the capture-offset, which can be a problem.
*/
while (g_atomic_int_and (&_latency_recompute_pending, 0)) {
+ Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock ());
update_latency_compensation ();
}
}
projects / ardour.git / blobdiff