/*
- Copyright (C) 2006 Paul Davis
+ Copyright (C) 2006 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <pbd/error.h>
-#include <sigc++/retype.h>
-#include <sigc++/retype_return.h>
-#include <sigc++/bind.h>
-
-#include <ardour/track.h>
-#include <ardour/diskstream.h>
-#include <ardour/session.h>
-#include <ardour/io_processor.h>
-#include <ardour/audioregion.h>
-#include <ardour/audiosource.h>
-#include <ardour/route_group_specialized.h>
-#include <ardour/processor.h>
-#include <ardour/audioplaylist.h>
-#include <ardour/panner.h>
-#include <ardour/utils.h>
+#include "pbd/error.h"
+
+#include "ardour/amp.h"
+#include "ardour/debug.h"
+#include "ardour/delivery.h"
+#include "ardour/diskstream.h"
+#include "ardour/io_processor.h"
+#include "ardour/meter.h"
+#include "ardour/playlist.h"
+#include "ardour/port.h"
+#include "ardour/processor.h"
+#include "ardour/route_group_specialized.h"
+#include "ardour/session.h"
+#include "ardour/track.h"
+#include "ardour/utils.h"
#include "i18n.h"
using namespace PBD;
Track::Track (Session& sess, string name, Route::Flag flag, TrackMode mode, DataType default_type)
- : Route (sess, name, 1, -1, -1, -1, flag, default_type)
- , _rec_enable_control (new RecEnableControllable(*this))
+ : Route (sess, name, flag, default_type)
+ , _saved_meter_point (_meter_point)
+ , _mode (mode)
+ , _monitoring (MonitorAuto)
{
- _declickable = true;
_freeze_record.state = NoFreeze;
- _saved_meter_point = _meter_point;
- _mode = mode;
+ _declickable = true;
+
+ Config->ParameterChanged.connect_same_thread (*this, boost::bind (&Track::parameter_changed, this, _1));
}
-Track::Track (Session& sess, const XMLNode& node, DataType default_type)
- : Route (sess, node)
- , _rec_enable_control (new RecEnableControllable(*this))
+Track::~Track ()
{
- _freeze_record.state = NoFreeze;
- _declickable = true;
- _saved_meter_point = _meter_point;
+ DEBUG_TRACE (DEBUG::Destruction, string_compose ("track %1 destructor\n", _name));
}
-Track::~Track ()
+int
+Track::init ()
{
+ if (Route::init ()) {
+ return -1;
+ }
+
+ boost::shared_ptr<Route> rp (shared_from_this());
+ boost::shared_ptr<Track> rt = boost::dynamic_pointer_cast<Track> (rp);
+ _rec_enable_control = boost::shared_ptr<RecEnableControl> (new RecEnableControl(rt));
+ _rec_enable_control->set_flags (Controllable::Toggle);
+
+ /* don't add rec_enable_control to controls because we don't want it to
+ * appear as an automatable parameter
+ */
+
+ return 0;
}
void
-Track::set_meter_point (MeterPoint p, void *src)
+Track::use_new_diskstream ()
{
- Route::set_meter_point (p, src);
+ boost::shared_ptr<Diskstream> ds = create_diskstream ();
+
+ ds->do_refill_with_alloc ();
+ ds->set_block_size (_session.get_block_size ());
+ ds->playlist()->set_orig_track_id (id());
+
+ set_diskstream (ds);
}
XMLNode&
}
XMLNode&
-Track::get_template ()
+Track::state (bool full)
{
- return state (false);
-}
+ XMLNode& root (Route::state (full));
+ root.add_property (X_("monitoring"), enum_2_string (_monitoring));
+ root.add_property (X_("saved-meter-point"), enum_2_string (_saved_meter_point));
+ root.add_child_nocopy (_rec_enable_control->get_state());
+ root.add_child_nocopy (_diskstream->get_state ());
+
+ if (!_deactivated_processors.empty ()) {
+ XMLNode* node = new XMLNode (X_("DeactivatedProcessors"));
+ for (list<boost::weak_ptr<Processor> >::iterator i = _deactivated_processors.begin(); i != _deactivated_processors.end(); ++i) {
+ boost::shared_ptr<Processor> p = i->lock ();
+ if (p) {
+ XMLNode* c = new XMLNode (X_("Processor"));
+ c->add_property (X_("id"), p->id().to_s());
+ node->add_child_nocopy (*c);
+ }
+ }
+ root.add_child_nocopy (*node);
+ }
+
+ return root;
+}
-void
-Track::toggle_monitor_input ()
+int
+Track::set_state (const XMLNode& node, int version)
{
- for (PortSet::iterator i = _inputs.begin(); i != _inputs.end(); ++i) {
- i->ensure_monitor_input(!i->monitoring_input());
+ if (Route::set_state (node, version)) {
+ return -1;
}
-}
-ARDOUR::nframes_t
-Track::update_total_latency ()
-{
- nframes_t old = _own_latency;
+ XMLNode* child;
- if (_user_latency) {
- _own_latency = _user_latency;
- } else {
- _own_latency = 0;
+ if (version >= 3000) {
+ if ((child = find_named_node (node, X_("Diskstream"))) != 0) {
+ boost::shared_ptr<Diskstream> ds = diskstream_factory (*child);
+ ds->do_refill_with_alloc ();
+ set_diskstream (ds);
+ }
+ }
- for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
- if ((*i)->active ()) {
- _own_latency += (*i)->signal_latency ();
+ if (_diskstream) {
+ _diskstream->playlist()->set_orig_track_id (id());
+ }
+
+ /* set rec-enable control *AFTER* setting up diskstream, because it may
+ want to operate on the diskstream as it sets its own state
+ */
+
+ XMLNodeList nlist = node.children();
+ for (XMLNodeConstIterator niter = nlist.begin(); niter != nlist.end(); ++niter) {
+ child = *niter;
+
+ XMLProperty* prop;
+ if (child->name() == Controllable::xml_node_name && (prop = child->property ("name")) != 0) {
+ if (prop->value() == X_("recenable")) {
+ _rec_enable_control->set_state (*child, version);
+ }
+ }
+
+ if (child->name() == X_("DeactivatedProcessors")) {
+ XMLNodeList dp = child->children ();
+ for (XMLNodeConstIterator i = dp.begin(); i != dp.end(); ++i) {
+ assert ((*i)->name() == X_("Processor"));
+ XMLProperty* prop = (*i)->property (X_("id"));
+ boost::shared_ptr<Processor> p = processor_by_id (PBD::ID (prop->value ()));
+ if (p) {
+ _deactivated_processors.push_back (p);
+ }
}
}
}
+
+ const XMLProperty* prop;
- set_port_latency (_own_latency);
+ if ((prop = node.property (X_("monitoring"))) != 0) {
+ _monitoring = MonitorChoice (string_2_enum (prop->value(), _monitoring));
+ } else {
+ _monitoring = MonitorAuto;
+ }
- if (old != _own_latency) {
- signal_latency_changed (); /* EMIT SIGNAL */
+ if ((prop = node.property (X_("saved-meter-point"))) != 0) {
+ _saved_meter_point = MeterPoint (string_2_enum (prop->value(), _saved_meter_point));
+ } else {
+ _saved_meter_point = _meter_point;
}
- return _own_latency;
+ return 0;
+}
+
+XMLNode&
+Track::get_template ()
+{
+ return state (false);
}
Track::FreezeRecord::~FreezeRecord ()
return _freeze_record.state;
}
-Track::RecEnableControllable::RecEnableControllable (Track& s)
- : Controllable (X_("recenable")), track (s)
+Track::RecEnableControl::RecEnableControl (boost::shared_ptr<Track> t)
+ : AutomationControl (t->session(), RecEnableAutomation, boost::shared_ptr<AutomationList>(), X_("recenable"))
+ , track (t)
{
+ boost::shared_ptr<AutomationList> gl(new AutomationList(Evoral::Parameter(RecEnableAutomation)));
+ set_list (gl);
}
void
-Track::RecEnableControllable::set_value (float val)
+Track::RecEnableControl::set_value (double val)
{
- bool bval = ((val >= 0.5f) ? true: false);
- track.set_record_enable (bval, this);
+ boost::shared_ptr<Track> t = track.lock ();
+ if (!t) {
+ return;
+ }
+
+ t->set_record_enabled (val >= 0.5 ? true : false, this);
}
-float
-Track::RecEnableControllable::get_value (void) const
+double
+Track::RecEnableControl::get_value () const
{
- if (track.record_enabled()) { return 1.0f; }
- return 0.0f;
+ boost::shared_ptr<Track> t = track.lock ();
+ if (!t) {
+ return 0;
+ }
+
+ return (t->record_enabled() ? 1.0 : 0.0);
}
bool
Track::record_enabled () const
{
- return _diskstream->record_enabled ();
+ return _diskstream && _diskstream->record_enabled ();
}
bool
Track::can_record()
{
bool will_record = true;
- for (PortSet::iterator i = _inputs.begin(); i != _inputs.end() && will_record; ++i) {
+ for (PortSet::iterator i = _input->ports().begin(); i != _input->ports().end() && will_record; ++i) {
if (!i->connected())
will_record = false;
}
return will_record;
}
+
+/* Turn off visible processors (except Fader), keeping track of the old states */
+void
+Track::deactivate_visible_processors ()
+{
+ _deactivated_processors.clear ();
+ Glib::RWLock::ReaderLock lm (_processor_lock);
+ for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
+ if ((*i)->active() && (*i)->display_to_user() && boost::dynamic_pointer_cast<Amp> (*i) == 0) {
+ (*i)->deactivate ();
+ _deactivated_processors.push_back (*i);
+ }
+ }
+}
+
+/* Turn deactivated processors back on again */
+void
+Track::activate_deactivated_processors ()
+{
+ for (list<boost::weak_ptr<Processor> >::iterator i = _deactivated_processors.begin(); i != _deactivated_processors.end(); ++i) {
+ boost::shared_ptr<Processor> p = i->lock ();
+ if (p) {
+ p->activate ();
+ }
+ }
+}
+
void
-Track::set_record_enable (bool yn, void *src)
+Track::set_record_enabled (bool yn, void *src)
{
+ if (!_session.writable()) {
+ return;
+ }
+
if (_freeze_record.state == Frozen) {
return;
}
- if (_mix_group && src != _mix_group && _mix_group->is_active()) {
- _mix_group->apply (&Track::set_record_enable, yn, _mix_group);
+ if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_recenable()) {
+ _route_group->apply (&Track::set_record_enabled, yn, _route_group);
return;
}
if (!_diskstream->record_enabled()) {
_saved_meter_point = _meter_point;
}
-
+
+ if (Config->get_do_not_record_plugins ()) {
+ if (yn) {
+ deactivate_visible_processors ();
+ } else {
+ activate_deactivated_processors ();
+ }
+ }
+
_diskstream->set_record_enabled (yn);
if (_diskstream->record_enabled()) {
- set_meter_point (MeterInput, this);
+ if (_meter_point != MeterCustom) {
+ set_meter_point (MeterInput);
+ }
} else {
- set_meter_point (_saved_meter_point, this);
+ set_meter_point (_saved_meter_point);
}
_rec_enable_control->Changed ();
return false;
}
- if (_diskstream->set_name (str)) {
- return false;
+ if (_diskstream->playlist()->all_regions_empty ()) {
+ /* Only rename the diskstream (and therefore the playlist) if
+ the playlist has never had a region added to it. Otherwise
+ people can get confused if, say, they have notes about a
+ playlist with a given name and then it changes (see mantis
+ #4759).
+ */
+ _diskstream->set_name (str);
}
/* save state so that the statefile fully reflects any filename changes */
- if ((ret = IO::set_name (str)) == 0) {
+ if ((ret = Route::set_name (str)) == 0) {
_session.save_state ("");
}
}
void
-Track::set_latency_delay (nframes_t longest_session_latency)
+Track::set_latency_compensation (framecnt_t longest_session_latency)
{
- Route::set_latency_delay (longest_session_latency);
+ Route::set_latency_compensation (longest_session_latency);
_diskstream->set_roll_delay (_roll_delay);
}
+int
+Track::no_roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, bool session_state_changing)
+{
+ Glib::RWLock::ReaderLock lm (_processor_lock, Glib::TRY_LOCK);
+ if (!lm.locked()) {
+ return 0;
+ }
+
+ bool can_record = _session.actively_recording ();
+
+ if (n_outputs().n_total() == 0) {
+ return 0;
+ }
+
+ if (!_active) {
+ silence (nframes);
+ return 0;
+ }
+
+ if (session_state_changing) {
+ if (_session.transport_speed() != 0.0f) {
+ /* we're rolling but some state is changing (e.g. our diskstream contents)
+ so we cannot use them. Be silent till this is over. Don't declick.
+
+ XXX note the absurdity of ::no_roll() being called when we ARE rolling!
+ */
+ passthru_silence (start_frame, end_frame, nframes, 0);
+ return 0;
+ }
+ /* we're really not rolling, so we're either delivery silence or actually
+ monitoring, both of which are safe to do while session_state_changing is true.
+ */
+ }
+
+ _diskstream->check_record_status (start_frame, can_record);
+
+ bool be_silent;
+
+ if (_have_internal_generator) {
+ /* since the instrument has no input streams,
+ there is no reason to send any signal
+ into the route.
+ */
+ be_silent = true;
+ } else {
+ MonitorState const s = monitoring_state ();
+ /* we are not rolling, so be silent even if we are monitoring disk, as there
+ will be no disk data coming in.
+ */
+ be_silent = (s == MonitoringSilence || s == MonitoringDisk);
+ }
+
+ if (!_have_internal_generator && metering_state() == MeteringInput) {
+ _input->process_input (_meter, start_frame, end_frame, nframes);
+ }
+
+ _amp->apply_gain_automation(false);
+
+ /* if have_internal_generator, or .. */
+ //_input->process_input (_meter, start_frame, end_frame, nframes);
+
+ if (be_silent) {
+
+ passthru_silence (start_frame, end_frame, nframes, 0);
+
+ } else {
+
+ /* we're sending signal, but we may still want to meter the input.
+ */
+
+ passthru (start_frame, end_frame, nframes, false);
+ }
+
+ for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
+ boost::shared_ptr<Delivery> d = boost::dynamic_pointer_cast<Delivery> (*i);
+ if (d) {
+ d->flush_buffers (nframes);
+ }
+ }
+
+ return 0;
+}
+
+int
+Track::silent_roll (pframes_t nframes, framepos_t /*start_frame*/, framepos_t /*end_frame*/, bool& need_butler)
+{
+ Glib::RWLock::ReaderLock lm (_processor_lock, Glib::TRY_LOCK);
+ if (!lm.locked()) {
+ return 0;
+ }
+
+ if (n_outputs().n_total() == 0 && _processors.empty()) {
+ return 0;
+ }
+
+ if (!_active) {
+ silence (nframes);
+ return 0;
+ }
+
+ _silent = true;
+ _amp->apply_gain_automation(false);
+
+ silence (nframes);
+
+ framecnt_t playback_distance;
+ int const dret = _diskstream->process (_session.transport_frame(), nframes, playback_distance);
+ need_butler = _diskstream->commit (playback_distance);
+ return dret;
+}
+
+void
+Track::set_diskstream (boost::shared_ptr<Diskstream> ds)
+{
+ _diskstream = ds;
+
+ ds->PlaylistChanged.connect_same_thread (*this, boost::bind (&Track::diskstream_playlist_changed, this));
+ diskstream_playlist_changed ();
+ ds->RecordEnableChanged.connect_same_thread (*this, boost::bind (&Track::diskstream_record_enable_changed, this));
+ ds->SpeedChanged.connect_same_thread (*this, boost::bind (&Track::diskstream_speed_changed, this));
+ ds->AlignmentStyleChanged.connect_same_thread (*this, boost::bind (&Track::diskstream_alignment_style_changed, this));
+}
+
+void
+Track::diskstream_playlist_changed ()
+{
+ PlaylistChanged (); /* EMIT SIGNAL */
+}
+
+void
+Track::diskstream_record_enable_changed ()
+{
+ RecordEnableChanged (); /* EMIT SIGNAL */
+}
+
+void
+Track::diskstream_speed_changed ()
+{
+ SpeedChanged (); /* EMIT SIGNAL */
+}
+
+void
+Track::diskstream_alignment_style_changed ()
+{
+ AlignmentStyleChanged (); /* EMIT SIGNAL */
+}
+
+boost::shared_ptr<Playlist>
+Track::playlist ()
+{
+ return _diskstream->playlist ();
+}
+
+void
+Track::request_jack_monitors_input (bool m)
+{
+ _diskstream->request_jack_monitors_input (m);
+}
+
+void
+Track::ensure_jack_monitors_input (bool m)
+{
+ _diskstream->ensure_jack_monitors_input (m);
+}
+
+bool
+Track::destructive () const
+{
+ return _diskstream->destructive ();
+}
+
+list<boost::shared_ptr<Source> > &
+Track::last_capture_sources ()
+{
+ return _diskstream->last_capture_sources ();
+}
+
+void
+Track::set_capture_offset ()
+{
+ _diskstream->set_capture_offset ();
+}
+
+list<boost::shared_ptr<Source> >
+Track::steal_write_sources()
+{
+ return _diskstream->steal_write_sources ();
+}
+
+void
+Track::reset_write_sources (bool r, bool force)
+{
+ _diskstream->reset_write_sources (r, force);
+}
+
+float
+Track::playback_buffer_load () const
+{
+ return _diskstream->playback_buffer_load ();
+}
+
+float
+Track::capture_buffer_load () const
+{
+ return _diskstream->capture_buffer_load ();
+}
+
+int
+Track::do_refill ()
+{
+ return _diskstream->do_refill ();
+}
+
+int
+Track::do_flush (RunContext c, bool force)
+{
+ return _diskstream->do_flush (c, force);
+}
+
+void
+Track::set_pending_overwrite (bool o)
+{
+ _diskstream->set_pending_overwrite (o);
+}
+
+int
+Track::seek (framepos_t p, bool complete_refill)
+{
+ return _diskstream->seek (p, complete_refill);
+}
+
+bool
+Track::hidden () const
+{
+ return _diskstream->hidden ();
+}
+
+int
+Track::can_internal_playback_seek (framecnt_t p)
+{
+ return _diskstream->can_internal_playback_seek (p);
+}
+
+int
+Track::internal_playback_seek (framecnt_t p)
+{
+ return _diskstream->internal_playback_seek (p);
+}
+
+void
+Track::non_realtime_input_change ()
+{
+ _diskstream->non_realtime_input_change ();
+}
+
+void
+Track::non_realtime_locate (framepos_t p)
+{
+ _diskstream->non_realtime_locate (p);
+}
+
+void
+Track::non_realtime_set_speed ()
+{
+ _diskstream->non_realtime_set_speed ();
+}
+
+int
+Track::overwrite_existing_buffers ()
+{
+ return _diskstream->overwrite_existing_buffers ();
+}
+
+framecnt_t
+Track::get_captured_frames (uint32_t n) const
+{
+ return _diskstream->get_captured_frames (n);
+}
+
+int
+Track::set_loop (Location* l)
+{
+ return _diskstream->set_loop (l);
+}
+
+void
+Track::transport_looped (framepos_t p)
+{
+ _diskstream->transport_looped (p);
+}
+
+bool
+Track::realtime_set_speed (double s, bool g)
+{
+ return _diskstream->realtime_set_speed (s, g);
+}
+
+void
+Track::transport_stopped_wallclock (struct tm & n, time_t t, bool g)
+{
+ _diskstream->transport_stopped_wallclock (n, t, g);
+}
+
+bool
+Track::pending_overwrite () const
+{
+ return _diskstream->pending_overwrite ();
+}
+
+double
+Track::speed () const
+{
+ return _diskstream->speed ();
+}
+
+void
+Track::prepare_to_stop (framepos_t p)
+{
+ _diskstream->prepare_to_stop (p);
+}
+
+void
+Track::set_slaved (bool s)
+{
+ _diskstream->set_slaved (s);
+}
+
+ChanCount
+Track::n_channels ()
+{
+ return _diskstream->n_channels ();
+}
+
+framepos_t
+Track::get_capture_start_frame (uint32_t n) const
+{
+ return _diskstream->get_capture_start_frame (n);
+}
+
+AlignStyle
+Track::alignment_style () const
+{
+ return _diskstream->alignment_style ();
+}
+
+AlignChoice
+Track::alignment_choice () const
+{
+ return _diskstream->alignment_choice ();
+}
+
+framepos_t
+Track::current_capture_start () const
+{
+ return _diskstream->current_capture_start ();
+}
+
+framepos_t
+Track::current_capture_end () const
+{
+ return _diskstream->current_capture_end ();
+}
+
+void
+Track::playlist_modified ()
+{
+ _diskstream->playlist_modified ();
+}
+
+int
+Track::use_playlist (boost::shared_ptr<Playlist> p)
+{
+ int ret = _diskstream->use_playlist (p);
+ if (ret == 0) {
+ p->set_orig_track_id (id());
+ }
+ return ret;
+}
+
+int
+Track::use_copy_playlist ()
+{
+ int ret = _diskstream->use_copy_playlist ();
+
+ if (ret == 0) {
+ _diskstream->playlist()->set_orig_track_id (id());
+ }
+
+ return ret;
+}
+
+int
+Track::use_new_playlist ()
+{
+ int ret = _diskstream->use_new_playlist ();
+
+ if (ret == 0) {
+ _diskstream->playlist()->set_orig_track_id (id());
+ }
+
+ return ret;
+}
+
+void
+Track::set_align_style (AlignStyle s, bool force)
+{
+ _diskstream->set_align_style (s, force);
+}
+
+void
+Track::set_align_choice (AlignChoice s, bool force)
+{
+ _diskstream->set_align_choice (s, force);
+}
+
+bool
+Track::using_diskstream_id (PBD::ID id) const
+{
+ return (id == _diskstream->id ());
+}
+
+void
+Track::set_block_size (pframes_t n)
+{
+ Route::set_block_size (n);
+ _diskstream->set_block_size (n);
+}
+
+void
+Track::adjust_playback_buffering ()
+{
+ if (_diskstream) {
+ _diskstream->adjust_playback_buffering ();
+ }
+}
+
+void
+Track::adjust_capture_buffering ()
+{
+ if (_diskstream) {
+ _diskstream->adjust_capture_buffering ();
+ }
+}
+
+MonitorState
+Track::monitoring_state () const
+{
+ /* Explicit requests */
+
+ if (_monitoring & MonitorInput) {
+ return MonitoringInput;
+ }
+
+ if (_monitoring & MonitorDisk) {
+ return MonitoringDisk;
+ }
+
+ /* This is an implementation of the truth table in doc/monitor_modes.pdf;
+ I don't think it's ever going to be too pretty too look at.
+ */
+
+ bool const roll = _session.transport_rolling ();
+ bool const track_rec = _diskstream->record_enabled ();
+ bool const session_rec = _session.get_record_enabled ();
+ bool const auto_input = _session.config.get_auto_input ();
+ bool const software_monitor = Config->get_monitoring_model() == SoftwareMonitoring;
+ bool const tape_machine_mode = Config->get_tape_machine_mode ();
+
+ if (track_rec) {
+
+ if (!session_rec && roll && auto_input) {
+ return MonitoringDisk;
+ } else {
+ return software_monitor ? MonitoringInput : MonitoringSilence;
+ }
+
+ } else {
+
+ if (tape_machine_mode) {
+
+ return MonitoringDisk;
+
+ } else {
+
+ if (!roll && auto_input) {
+ return software_monitor ? MonitoringInput : MonitoringSilence;
+ } else {
+ return MonitoringDisk;
+ }
+
+ }
+ }
+
+ /* NOTREACHED */
+ return MonitoringSilence;
+}
+
+void
+Track::maybe_declick (BufferSet& bufs, framecnt_t nframes, int declick)
+{
+ /* never declick if there is an internal generator - we just want it to
+ keep generating sound without interruption.
+
+ ditto if we are monitoring inputs.
+ */
+
+ if (_have_internal_generator || monitoring_choice() == MonitorInput) {
+ return;
+ }
+
+ if (!declick) {
+ declick = _pending_declick;
+ }
+
+ if (declick != 0) {
+ Amp::declick (bufs, nframes, declick);
+ }
+}
+
+framecnt_t
+Track::check_initial_delay (framecnt_t nframes, framepos_t& transport_frame)
+{
+ if (_roll_delay > nframes) {
+
+ _roll_delay -= nframes;
+ silence_unlocked (nframes);
+ /* transport frame is not legal for caller to use */
+ return 0;
+
+ } else if (_roll_delay > 0) {
+
+ nframes -= _roll_delay;
+ silence_unlocked (_roll_delay);
+ transport_frame += _roll_delay;
+
+ /* shuffle all the port buffers for things that lead "out" of this Route
+ to reflect that we just wrote _roll_delay frames of silence.
+ */
+
+ Glib::RWLock::ReaderLock lm (_processor_lock);
+ for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
+ boost::shared_ptr<IOProcessor> iop = boost::dynamic_pointer_cast<IOProcessor> (*i);
+ if (iop) {
+ iop->increment_port_buffer_offset (_roll_delay);
+ }
+ }
+ _output->increment_port_buffer_offset (_roll_delay);
+
+ _roll_delay = 0;
+
+ }
+
+ return nframes;
+}
+
+void
+Track::set_monitoring (MonitorChoice mc)
+{
+ if (mc != _monitoring) {
+ _monitoring = mc;
+
+ for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
+ (*i)->monitoring_changed ();
+ }
+
+ MonitoringChanged (); /* EMIT SIGNAL */
+ }
+}
+
+void
+Track::parameter_changed (string p)
+{
+ if (p != "do-not-record-plugins") {
+ return;
+ }
+
+ if (record_enabled ()) {
+ if (Config->get_do_not_record_plugins ()) {
+ deactivate_visible_processors ();
+ } else {
+ activate_deactivated_processors ();
+ }
+ }
+}
+
+MeterState
+Track::metering_state () const
+{
+ return _diskstream->record_enabled() ? MeteringInput : MeteringRoute;
+}