#include <algorithm>
#include <unistd.h>
#include <locale.h>
+#include <errno.h>
#include <sigc++/bind.h>
using namespace std;
using namespace ARDOUR;
-//using namespace sigc;
+using namespace PBD;
+
static float current_automation_version_number = 1.0;
-jack_nframes_t IO::_automation_interval = 0;
const string IO::state_node_name = "IO";
bool IO::connecting_legal = false;
bool IO::ports_legal = false;
Glib::StaticMutex IO::m_meter_signal_lock = GLIBMM_STATIC_MUTEX_INIT;
-/* this is a default mapper of MIDI control values to a gain coefficient.
- others can be imagined. see IO::set_midi_to_gain_function().
+/* this is a default mapper of [0 .. 1.0] control values to a gain coefficient.
+ others can be imagined.
*/
-static gain_t direct_midi_to_gain (double fract) {
+static gain_t direct_control_to_gain (double fract) {
/* XXX Marcus writes: this doesn't seem right to me. but i don't have a better answer ... */
/* this maxes at +6dB */
return pow (2.0,(sqrt(sqrt(sqrt(fract)))*198.0-192.0)/6.0);
}
-static double direct_gain_to_midi (gain_t gain) {
+static double direct_gain_to_control (gain_t gain) {
/* XXX Marcus writes: this doesn't seem right to me. but i don't have a better answer ... */
if (gain == 0) return 0.0;
}
+/** @param default_type The type of port that will be created by ensure_io
+ * and friends if no type is explicitly requested (to avoid breakage).
+ */
IO::IO (Session& s, string name,
-
- int input_min, int input_max, int output_min, int output_max)
+ int input_min, int input_max, int output_min, int output_max,
+ DataType default_type)
: _session (s),
_name (name),
- _midi_gain_control (*this, _session.midi_port()),
+ _default_type(default_type),
+ _gain_control (X_("gaincontrol"), *this),
_gain_automation_curve (0.0, 2.0, 1.0),
_input_minimum (input_min),
_input_maximum (input_max),
_output_minimum (output_min),
_output_maximum (output_max)
{
- _id = new_id();
_panner = new Panner (name, _session);
_gain = 1.0;
_desired_gain = 1.0;
no_panner_reset = false;
deferred_state = 0;
- _midi_gain_control.midi_to_gain = direct_midi_to_gain;
- _midi_gain_control.gain_to_midi = direct_gain_to_midi;
-
apply_gain_automation = false;
-
- last_automation_snapshot = 0;
-
+ _ignore_gain_on_deliver = false;
+
_gain_automation_state = Off;
_gain_automation_style = Absolute;
-
- {
- // IO::Meter is emitted from another thread so the
- // Meter signal must be protected.
- Glib::Mutex::Lock guard (m_meter_signal_lock);
- m_meter_connection = Meter.connect (mem_fun (*this, &IO::meter));
- }
+
+ {
+ // IO::Meter is emitted from another thread so the
+ // Meter signal must be protected.
+ Glib::Mutex::Lock guard (m_meter_signal_lock);
+ m_meter_connection = Meter.connect (mem_fun (*this, &IO::meter));
+ }
}
IO::~IO ()
{
- Glib::Mutex::Lock guard (m_meter_signal_lock);
+ Glib::Mutex::Lock guard (m_meter_signal_lock);
+
Glib::Mutex::Lock lm (io_lock);
vector<Port *>::iterator i;
_session.engine().unregister_port (*i);
}
- m_meter_connection.disconnect();
+ m_meter_connection.disconnect();
}
void
-IO::silence (jack_nframes_t nframes, jack_nframes_t offset)
+IO::silence (nframes_t nframes, nframes_t offset)
{
/* io_lock, not taken: function must be called from Session::process() calltree */
}
void
-IO::apply_declick (vector<Sample *>& bufs, uint32_t nbufs, jack_nframes_t nframes, gain_t initial, gain_t target, bool invert_polarity)
+IO::apply_declick (vector<Sample *>& bufs, uint32_t nbufs, nframes_t nframes, gain_t initial, gain_t target, bool invert_polarity)
{
- jack_nframes_t declick = min ((jack_nframes_t)4096, nframes);
+ nframes_t declick = min ((nframes_t)128, nframes);
gain_t delta;
Sample *buffer;
double fractional_shift;
buffer = bufs[n];
fractional_pos = 1.0;
- for (jack_nframes_t nx = 0; nx < declick; ++nx) {
+ for (nframes_t nx = 0; nx < declick; ++nx) {
buffer[nx] *= polscale * (initial + (delta * (0.5 + 0.5 * cos (M_PI * fractional_pos))));
fractional_pos += fractional_shift;
}
/* now ensure the rest of the buffer has the target value
applied, if necessary.
*/
-
+
if (declick != nframes) {
+ float this_target;
if (invert_polarity) {
- target = -target;
+ this_target = -target;
+ } else {
+ this_target = target;
}
- if (target == 0.0) {
+ if (this_target == 0.0) {
memset (&buffer[declick], 0, sizeof (Sample) * (nframes - declick));
- } else if (target != 1.0) {
- for (jack_nframes_t nx = declick; nx < nframes; ++nx) {
- buffer[nx] *= target;
+ } else if (this_target != 1.0) {
+ for (nframes_t nx = declick; nx < nframes; ++nx) {
+ buffer[nx] *= this_target;
}
}
}
}
void
-IO::pan_automated (vector<Sample*>& bufs, uint32_t nbufs, jack_nframes_t start, jack_nframes_t end, jack_nframes_t nframes, jack_nframes_t offset)
+IO::pan_automated (vector<Sample*>& bufs, uint32_t nbufs, nframes_t start, nframes_t end, nframes_t nframes, nframes_t offset)
{
Sample* dst;
}
void
-IO::pan (vector<Sample*>& bufs, uint32_t nbufs, jack_nframes_t nframes, jack_nframes_t offset, gain_t gain_coeff)
+IO::pan (vector<Sample*>& bufs, uint32_t nbufs, nframes_t nframes, nframes_t offset, gain_t gain_coeff)
{
Sample* dst;
Sample* src;
for (n = 1; n < nbufs; ++n) {
src = bufs[n];
- for (jack_nframes_t n = 0; n < nframes; ++n) {
+ for (nframes_t n = 0; n < nframes; ++n) {
dst[n] += src[n];
}
}
src = bufs[0];
- for (jack_nframes_t n = 0; n < nframes; ++n) {
+ for (nframes_t n = 0; n < nframes; ++n) {
dst[n] = src[n] * gain_coeff;
}
for (n = 1; n < nbufs; ++n) {
src = bufs[n];
- for (jack_nframes_t n = 0; n < nframes; ++n) {
+ for (nframes_t n = 0; n < nframes; ++n) {
dst[n] += src[n] * gain_coeff;
}
}
}
void
-IO::deliver_output (vector<Sample *>& bufs, uint32_t nbufs, jack_nframes_t nframes, jack_nframes_t offset)
+IO::deliver_output (vector<Sample *>& bufs, uint32_t nbufs, nframes_t nframes, nframes_t offset)
{
/* io_lock, not taken: function must be called from Session::process() calltree */
}
void
-IO::deliver_output_no_pan (vector<Sample *>& bufs, uint32_t nbufs, jack_nframes_t nframes, jack_nframes_t offset)
+IO::deliver_output_no_pan (vector<Sample *>& bufs, uint32_t nbufs, nframes_t nframes, nframes_t offset)
{
/* io_lock, not taken: function must be called from Session::process() calltree */
gain_t dg;
gain_t old_gain = _gain;
- if (apply_gain_automation) {
+ if (apply_gain_automation || _ignore_gain_on_deliver) {
/* gain has already been applied by automation code. do nothing here except
speed quietning.
} else if (actual_gain == 0.0f) {
memset (dst, 0, sizeof (Sample) * nframes);
} else {
- for (jack_nframes_t x = 0; x < nframes; ++x) {
+ for (nframes_t x = 0; x < nframes; ++x) {
dst[x] = src[x] * actual_gain;
}
}
_gain = dg;
}
- if (apply_gain_automation) {
+ if (apply_gain_automation || _ignore_gain_on_deliver) {
_gain = old_gain;
}
}
void
-IO::collect_input (vector<Sample *>& bufs, uint32_t nbufs, jack_nframes_t nframes, jack_nframes_t offset)
+IO::collect_input (vector<Sample *>& bufs, uint32_t nbufs, nframes_t nframes, nframes_t offset)
{
/* io_lock, not taken: function must be called from Session::process() calltree */
}
void
-IO::just_meter_input (jack_nframes_t start_frame, jack_nframes_t end_frame,
- jack_nframes_t nframes, jack_nframes_t offset)
+IO::just_meter_input (nframes_t start_frame, nframes_t end_frame,
+ nframes_t nframes, nframes_t offset)
{
vector<Sample*>& bufs = _session.get_passthru_buffers ();
uint32_t nbufs = n_process_buffers ();
return -1;
}
+/** Add an output port.
+ *
+ * @param destination Name of input port to connect new port to.
+ * @param src Source for emitted ConfigurationChanged signal.
+ * @param type Data type of port. Default value (NIL) will use this IO's default type.
+ */
int
-IO::add_output_port (string destination, void* src)
+IO::add_output_port (string destination, void* src, DataType type)
{
Port* our_port;
- char buf[64];
+ char name[64];
+
+ if (type == DataType::NIL)
+ type = _default_type;
{
Glib::Mutex::Lock em(_session.engine().process_lock());
/* Create a new output port */
+ // FIXME: naming scheme for differently typed ports?
if (_output_maximum == 1) {
- snprintf (buf, sizeof (buf), _("%s/out"), _name.c_str());
+ snprintf (name, sizeof (name), _("%s/out"), _name.c_str());
} else {
- snprintf (buf, sizeof (buf), _("%s/out %u"), _name.c_str(), find_output_port_hole());
+ snprintf (name, sizeof (name), _("%s/out %u"), _name.c_str(), find_output_port_hole());
}
- if ((our_port = _session.engine().register_audio_output_port (buf)) == 0) {
- error << string_compose(_("IO: cannot register output port %1"), buf) << endmsg;
+ if ((our_port = _session.engine().register_output_port (type, name)) == 0) {
+ error << string_compose(_("IO: cannot register output port %1"), name) << endmsg;
return -1;
}
return -1;
}
+
+/** Add an input port.
+ *
+ * @param type Data type of port. The appropriate Jack port type, and @ref Port will be created.
+ * @param destination Name of input port to connect new port to.
+ * @param src Source for emitted ConfigurationChanged signal.
+ */
int
-IO::add_input_port (string source, void* src)
+IO::add_input_port (string source, void* src, DataType type)
{
Port* our_port;
- char buf[64];
+ char name[64];
+
+ if (type == DataType::NIL)
+ type = _default_type;
{
Glib::Mutex::Lock em (_session.engine().process_lock());
/* Create a new input port */
+ // FIXME: naming scheme for differently typed ports?
if (_input_maximum == 1) {
- snprintf (buf, sizeof (buf), _("%s/in"), _name.c_str());
+ snprintf (name, sizeof (name), _("%s/in"), _name.c_str());
} else {
- snprintf (buf, sizeof (buf), _("%s/in %u"), _name.c_str(), find_input_port_hole());
+ snprintf (name, sizeof (name), _("%s/in %u"), _name.c_str(), find_input_port_hole());
}
- if ((our_port = _session.engine().register_audio_input_port (buf)) == 0) {
- error << string_compose(_("IO: cannot register input port %1"), buf) << endmsg;
+ if ((our_port = _session.engine().register_input_port (type, name)) == 0) {
+ error << string_compose(_("IO: cannot register input port %1"), name) << endmsg;
return -1;
}
drop_input_connection ();
}
}
- input_changed (ConnectionsChanged, src); /* EMIT SIGNAL */
+ input_changed (ConnectionsChanged, src); /* EMIT SIGNAL */
return 0;
}
char buf[64];
- /* Create a new input port */
+ /* Create a new input port (of the default type) */
if (_input_maximum == 1) {
snprintf (buf, sizeof (buf), _("%s/in"), _name.c_str());
try {
- if ((input_port = _session.engine().register_audio_input_port (buf)) == 0) {
+ if ((input_port = _session.engine().register_input_port (_default_type, buf)) == 0) {
error << string_compose(_("IO: cannot register input port %1"), buf) << endmsg;
return -1;
}
out_changed = true;
}
- /* create any necessary new ports */
+ /* create any necessary new ports (of the default type) */
while (_ninputs < nin) {
}
try {
- if ((port = _session.engine().register_audio_input_port (buf)) == 0) {
+ if ((port = _session.engine().register_input_port (_default_type, buf)) == 0) {
error << string_compose(_("IO: cannot register input port %1"), buf) << endmsg;
return -1;
}
}
try {
- if ((port = _session.engine().register_audio_output_port (buf)) == 0) {
+ if ((port = _session.engine().register_output_port (_default_type, buf)) == 0) {
error << string_compose(_("IO: cannot register output port %1"), buf) << endmsg;
return -1;
}
snprintf (buf, sizeof (buf), _("%s/out %u"), _name.c_str(), find_output_port_hole());
}
- if ((output_port = _session.engine().register_audio_output_port (buf)) == 0) {
+ if ((output_port = _session.engine().register_output_port (_default_type, buf)) == 0) {
error << string_compose(_("IO: cannot register output port %1"), buf) << endmsg;
return -1;
}
IO::state (bool full_state)
{
XMLNode* node = new XMLNode (state_node_name);
- char buf[32];
+ char buf[64];
string str;
bool need_ins = true;
bool need_outs = true;
Glib::Mutex::Lock lm (io_lock);
node->add_property("name", _name);
- snprintf (buf, sizeof(buf), "%" PRIu64, id());
+ id().print (buf, sizeof (buf));
node->add_property("id", buf);
str = "";
}
node->add_child_nocopy (_panner->state (full_state));
+ node->add_child_nocopy (_gain_control.get_state ());
snprintf (buf, sizeof(buf), "%2.12f", gain());
node->add_property ("gain", buf);
node->add_property ("iolimits", buf);
- /* MIDI control */
-
- MIDI::channel_t chn;
- MIDI::eventType ev;
- MIDI::byte additional;
- XMLNode* midi_node = 0;
- XMLNode* child;
-
- if (_midi_gain_control.get_control_info (chn, ev, additional)) {
-
- midi_node = node->add_child ("MIDI");
-
- child = midi_node->add_child ("gain");
- set_midi_node_info (child, ev, chn, additional);
- }
-
/* automation */
if (full_state) {
{
const XMLProperty* prop;
XMLNodeConstIterator iter;
- XMLNodeList midi_kids;
LocaleGuard lg (X_("POSIX"));
/* force use of non-localized representation of decimal point,
}
if ((prop = node.property ("id")) != 0) {
- sscanf (prop->value().c_str(), "%" PRIu64, &_id);
+ _id = prop->value ();
}
if ((prop = node.property ("iolimits")) != 0) {
}
for (iter = node.children().begin(); iter != node.children().end(); ++iter) {
+
if ((*iter)->name() == "Panner") {
_panner->set_state (**iter);
}
- }
-
- midi_kids = node.children ("MIDI");
-
- for (iter = midi_kids.begin(); iter != midi_kids.end(); ++iter) {
-
- XMLNodeList kids;
- XMLNodeConstIterator miter;
- XMLNode* child;
-
- kids = (*iter)->children ();
-
- for (miter = kids.begin(); miter != kids.end(); ++miter) {
- child =* miter;
-
- if (child->name() == "gain") {
-
- MIDI::eventType ev = MIDI::on; /* initialize to keep gcc happy */
- MIDI::byte additional = 0; /* ditto */
- MIDI::channel_t chn = 0; /* ditto */
-
- if (get_midi_node_info (child, ev, chn, additional)) {
- _midi_gain_control.set_control_type (chn, ev, additional);
- } else {
- error << string_compose(_("MIDI gain control specification for %1 is incomplete, so it has been ignored"), _name) << endmsg;
- }
- }
+ if ((*iter)->name() == X_("gaincontrol")) {
+ _gain_control.set_state (**iter);
+ _session.add_controllable (&_gain_control);
}
}
-
+
if ((prop = node.property ("automation-state")) != 0) {
long int x;
return 0;
}
-bool
-IO::get_midi_node_info (XMLNode * node, MIDI::eventType & ev, MIDI::channel_t & chan, MIDI::byte & additional)
-{
- bool ok = true;
- const XMLProperty* prop;
- int xx;
-
- if ((prop = node->property ("event")) != 0) {
- sscanf (prop->value().c_str(), "0x%x", &xx);
- ev = (MIDI::eventType) xx;
- } else {
- ok = false;
- }
-
- if (ok && ((prop = node->property ("channel")) != 0)) {
- sscanf (prop->value().c_str(), "%d", &xx);
- chan = (MIDI::channel_t) xx;
- } else {
- ok = false;
- }
-
- if (ok && ((prop = node->property ("additional")) != 0)) {
- sscanf (prop->value().c_str(), "0x%x", &xx);
- additional = (MIDI::byte) xx;
- }
-
- return ok;
-}
-
-bool
-IO::set_midi_node_info (XMLNode * node, MIDI::eventType ev, MIDI::channel_t chan, MIDI::byte additional)
-{
- char buf[32];
-
- snprintf (buf, sizeof(buf), "0x%x", ev);
- node->add_property ("event", buf);
- snprintf (buf, sizeof(buf), "%d", chan);
- node->add_property ("channel", buf);
- snprintf (buf, sizeof(buf), "0x%x", additional);
- node->add_property ("additional", buf);
-
- return true;
-}
-
int
IO::make_connections (const XMLNode& node)
}
void
-IO::set_port_latency (jack_nframes_t nframes)
+IO::set_port_latency (nframes_t nframes)
{
Glib::Mutex::Lock lm (io_lock);
}
}
-jack_nframes_t
+nframes_t
IO::output_latency () const
{
- jack_nframes_t max_latency;
- jack_nframes_t latency;
+ nframes_t max_latency;
+ nframes_t latency;
max_latency = 0;
return max_latency;
}
-jack_nframes_t
+nframes_t
IO::input_latency () const
{
- jack_nframes_t max_latency;
- jack_nframes_t latency;
+ nframes_t max_latency;
+ nframes_t latency;
max_latency = 0;
use_output_connection (*_output_connection, this);
}
-IO::MIDIGainControl::MIDIGainControl (IO& i, MIDI::Port* port)
- : MIDI::Controllable (port, 0), io (i), setting(false)
-{
- midi_to_gain = 0;
- gain_to_midi = 0;
- setting = false;
- last_written = 0; /* XXX need a good out-of-bound-value */
-}
-
void
-IO::MIDIGainControl::set_value (float val)
+IO::GainControllable::set_value (float val)
{
- if (midi_to_gain == 0) return;
-
- setting = true;
- io.set_gain (midi_to_gain (val), this);
- setting = false;
-}
-
-void
-IO::MIDIGainControl::send_feedback (gain_t gain)
-{
- if (!setting && get_midi_feedback() && gain_to_midi) {
- MIDI::byte val = (MIDI::byte) (gain_to_midi (gain) * 127.0);
- MIDI::channel_t ch = 0;
- MIDI::eventType ev = MIDI::none;
- MIDI::byte additional = 0;
- MIDI::EventTwoBytes data;
-
- if (get_control_info (ch, ev, additional)) {
- data.controller_number = additional;
- data.value = val;
- last_written = val;
-
- io._session.send_midi_message (get_port(), ev, ch, data);
- }
- //send_midi_feedback (gain_to_midi (gain));
- }
+ io.set_gain (direct_control_to_gain (val), this);
}
-MIDI::byte*
-IO::MIDIGainControl::write_feedback (MIDI::byte* buf, int32_t& bufsize, gain_t val, bool force)
+float
+IO::GainControllable::get_value (void) const
{
- if (get_midi_feedback() && gain_to_midi && bufsize > 2) {
- MIDI::channel_t ch = 0;
- MIDI::eventType ev = MIDI::none;
- MIDI::byte additional = 0;
- MIDI::byte gm;
-
- if (get_control_info (ch, ev, additional)) {
- gm = (MIDI::byte) (gain_to_midi (val) * 127.0);
-
- if (gm != last_written) {
- *buf++ = (0xF0 & ev) | (0xF & ch);
- *buf++ = additional; /* controller number */
- *buf++ = gm;
- last_written = gm;
- bufsize -= 3;
- }
- }
- }
-
- return buf;
+ return direct_gain_to_control (io.effective_gain());
}
void
}
}
-UndoAction
-IO::get_memento() const
-{
- return sigc::bind (mem_fun (*(const_cast<IO *>(this)), &StateManager::use_state), _current_state_id);
-}
-
-Change
-IO::restore_state (StateManager::State& state)
-{
- return Change (0);
-}
-
-StateManager::State*
-IO::state_factory (std::string why) const
-{
- StateManager::State* state = new StateManager::State (why);
- return state;
-}
-
/**
Update the peak meters.
new_peak = minus_infinity();
}
- if (_session.meter_falloff() == 0.0f || new_peak > _visible_peak_power[n]) {
+ if (Config->get_meter_falloff() == 0.0f || new_peak > _visible_peak_power[n]) {
_visible_peak_power[n] = new_peak;
} else {
// do falloff
- new_peak = _visible_peak_power[n] - _session.meter_falloff();
+ new_peak = _visible_peak_power[n] - Config->get_meter_falloff();
_visible_peak_power[n] = max (new_peak, -INFINITY);
}
}
}
-void
-IO::reset_midi_control (MIDI::Port* port, bool on)
-{
- MIDI::channel_t chn;
- MIDI::eventType ev;
- MIDI::byte extra;
-
- _midi_gain_control.get_control_info (chn, ev, extra);
- if (!on) {
- chn = -1;
- }
- _midi_gain_control.midi_rebind (port, chn);
-
- _panner->reset_midi_control (port, on);
-}
-
-
int
IO::save_automation (const string& path)
{
/* XXX use apply_to_points to get thread safety */
for (AutomationList::iterator i = _gain_automation_curve.begin(); i != _gain_automation_curve.end(); ++i) {
- out << "g " << (jack_nframes_t) floor ((*i)->when) << ' ' << (*i)->value << endl;
+ out << "g " << (nframes_t) floor ((*i)->when) << ' ' << (*i)->value << endl;
}
_panner->save ();
fullpath += path;
in.open (fullpath.c_str());
if (!in) {
- error << string_compose(_("%1: cannot open automation event file \"%2\""), _name, fullpath) << endmsg;
- return -1;
+ error << string_compose(_("%1: cannot open automation event file \"%2\" (%2)"), _name, fullpath, strerror (errno)) << endmsg;
+ return -1;
}
}
while (in.getline (line, sizeof(line), '\n')) {
char type;
- jack_nframes_t when;
+ nframes_t when;
double value;
if (++linecnt == 1) {
}
}
- _gain_automation_curve.save_state (_("loaded from disk"));
-
return 0;
}
if (state != _gain_automation_curve.automation_state()) {
changed = true;
- last_automation_snapshot = 0;
_gain_automation_curve.set_automation_state (state);
if (state != Off) {
}
gain_changed (src);
-
- if (_session.get_midi_feedback()) {
- _midi_gain_control.send_feedback (_desired_gain);
- }
+ _gain_control.Changed (); /* EMIT SIGNAL */
if (_session.transport_stopped() && src != 0 && src != this && gain_automation_recording()) {
_gain_automation_curve.add (_session.transport_frame(), val);
_session.set_dirty();
}
-void
-IO::send_all_midi_feedback ()
-{
- if (_session.get_midi_feedback()) {
- _midi_gain_control.send_feedback (_effective_gain);
-
- // panners
- _panner->send_all_midi_feedback();
- }
-}
-
-MIDI::byte*
-IO::write_midi_feedback (MIDI::byte* buf, int32_t& bufsize)
-{
- if (_session.get_midi_feedback()) {
- if (gain_automation_playback ()) {
- buf = _midi_gain_control.write_feedback (buf, bufsize, _effective_gain);
- }
- buf = _panner->write_midi_feedback (buf, bufsize);
- }
-
- return buf;
-}
-
void
IO::start_gain_touch ()
{
}
void
-IO::automation_snapshot (jack_nframes_t now)
-{
- if (last_automation_snapshot > now || (now - last_automation_snapshot) > _automation_interval) {
-
- if (gain_automation_recording()) {
- _gain_automation_curve.rt_add (now, gain());
- }
-
- _panner->snapshot (now);
-
- last_automation_snapshot = now;
- }
-}
-
-void
-IO::transport_stopped (jack_nframes_t frame)
+IO::transport_stopped (nframes_t frame)
{
_gain_automation_curve.reposition_for_rt_add (frame);
if (_gain_automation_curve.automation_state() != Off) {
- if (gain_automation_recording()) {
- _gain_automation_curve.save_state (_("automation write/touch"));
- }
-
/* the src=0 condition is a special signal to not propagate
automation gain changes into the mix group when locating.
*/
projects / ardour.git / blobdiff