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0dBFS peak meter GUI

This commit is contained in:
Robin Gareus 2015-04-25 06:46:56 +02:00
parent 75087f5c62
commit 517211681e
5 changed files with 86 additions and 8 deletions
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21
gtk2_ardour/level_meter.cc
View File

@ -150,6 +150,8 @@ LevelMeterBase::update_meters ()
const float peak = _meter->meter_level (n, meter_type);
if (meter_type == MeterPeak) {
(*i).meter->set (log_meter (peak));
} else if (meter_type == MeterPeak0dB) {
(*i).meter->set (log_meter0dB (peak));
} else if (meter_type == MeterIEC1NOR) {
(*i).meter->set (meter_deflect_nordic (peak + meter_lineup(0)));
} else if (meter_type == MeterIEC1DIN) {
@ -374,6 +376,25 @@ LevelMeterBase::setup_meters (int len, int initial_width, int thin_width)
c[0] = c[2] = c[3] = c[4] = c[5] = c[1];
c[7] = c[8] = c[9] = c[6];
break;
case MeterPeak0dB:
stp[1] = 115.0 * log_meter0dB(-10);
stp[2] = 115.0 * log_meter0dB(-3);
stp[3] = 115.0 * log_meter0dB(0);
switch (ARDOUR_UI::config()->get_meter_line_up_level()) {
case MeteringLineUp24:
stp[0] = 115.0 * log_meter0dB(-24);
break;
case MeteringLineUp20:
stp[0] = 115.0 * log_meter0dB(-20);
break;
default:
case MeteringLineUp18:
stp[0] = 115.0 * log_meter0dB(-18);
break;
case MeteringLineUp15:
stp[0] = 115.0 * log_meter0dB(-15);
}
break;
default: // PEAK, RMS
stp[1] = 77.5; // 115 * log_meter(-10)
stp[2] = 92.5; // 115 * log_meter(-3)

25
gtk2_ardour/logmeter.h
View File

@ -75,6 +75,31 @@ log_meter (float db)
return def/115.0f;
}
static inline float
log_meter0dB (float db)
{
gfloat def = 0.0f; /* Meter deflection %age */
if (db < -70.0f) {
def = 0.0f;
} else if (db < -60.0f) {
def = (db + 70.0f) * 0.25f;
} else if (db < -50.0f) {
def = (db + 60.0f) * 0.5f + 2.5f;
} else if (db < -40.0f) {
def = (db + 50.0f) * 0.75f + 7.5f;
} else if (db < -30.0f) {
def = (db + 40.0f) * 1.5f + 15.0f;
} else if (db < -20.0f) {
def = (db + 30.0f) * 2.0f + 30.0f;
} else if (db < 0.0f) {
def = (db + 20.0f) * 2.5f + 50.0f;
} else {
def = 100.0f;
}
return def/100.0f;
}
static inline float
meter_deflect_ppm (float db)
{

46
gtk2_ardour/meter_patterns.cc
View File

@ -81,6 +81,9 @@ ArdourMeter::meter_type_string (ARDOUR::MeterType mt)
case MeterPeak:
return _("Peak");
break;
case MeterPeak0dB:
return _("Peak 0dB");
break;
case MeterKrms:
return _("RMS + Peak");
break;
@ -109,6 +112,7 @@ ArdourMeter::meter_type_string (ARDOUR::MeterType mt)
return _("VU");
break;
default:
assert(0);
return _("???");
break;
}
@ -141,6 +145,17 @@ static inline float mtr_col_and_fract(
cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
}
break;
case MeterPeak0dB:
fraction = log_meter0dB (val);
if (val >= 0 || val == -9) {
cairo_set_source_rgb (cr,
UINT_RGBA_R_FLT(peakcolor),
UINT_RGBA_G_FLT(peakcolor),
UINT_RGBA_B_FLT(peakcolor));
} else {
cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
}
break;
case MeterIEC2BBC:
case MeterIEC2EBU:
fraction = meter_deflect_ppm(val);
@ -491,6 +506,14 @@ meter_render_ticks (Gtk::Widget& w, MeterType type, vector<ARDOUR::DataType> typ
break;
default:
points.insert (std::pair<float,float>( 0, 1.0));
points.insert (std::pair<float,float>( 1, 0.5));
points.insert (std::pair<float,float>( 2, 0.5));
points.insert (std::pair<float,float>( 3, 1.0));
points.insert (std::pair<float,float>( 4, 0.5));
points.insert (std::pair<float,float>( 5, 0.5));
// no break
case MeterPeak0dB:
points.insert (std::pair<float,float>(-60, 0.5));
points.insert (std::pair<float,float>(-50, 1.0));
points.insert (std::pair<float,float>(-40, 1.0));
@ -523,13 +546,6 @@ meter_render_ticks (Gtk::Widget& w, MeterType type, vector<ARDOUR::DataType> typ
points.insert (std::pair<float,float>( -3, 1.0));
points.insert (std::pair<float,float>( -2, 0.5));
points.insert (std::pair<float,float>( -1, 0.5));
points.insert (std::pair<float,float>( 0, 1.0));
points.insert (std::pair<float,float>( 1, 0.5));
points.insert (std::pair<float,float>( 2, 0.5));
points.insert (std::pair<float,float>( 3, 1.0));
points.insert (std::pair<float,float>( 4, 0.5));
points.insert (std::pair<float,float>( 5, 0.5));
break;
}
break;
@ -678,6 +694,9 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
switch (*i) {
case DataType::AUDIO:
layout->set_attributes (audio_font_attributes);
if (type == MeterPeak0dB) {
overlay_midi = 4;
}
switch (type) {
case MeterK12:
overlay_midi = 0;
@ -725,6 +744,9 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
default:
case MeterPeak:
case MeterKrms:
points.insert (std::pair<float,string>( 3.0f, "+3"));
// no break
case MeterPeak0dB:
points.insert (std::pair<float,string>(-50.0f, "-50"));
points.insert (std::pair<float,string>(-40.0f, "-40"));
points.insert (std::pair<float,string>(-30.0f, "-30"));
@ -742,7 +764,6 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
points.insert (std::pair<float,string>( -5.0f, "-5"));
points.insert (std::pair<float,string>( -3.0f, "-3"));
points.insert (std::pair<float,string>( 0.0f, "+0"));
points.insert (std::pair<float,string>( 3.0f, "+3"));
break;
case MeterIEC2EBU:
@ -832,6 +853,7 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
points.insert (std::pair<float,string>( 96, "96"));
points.insert (std::pair<float,string>(100, "100"));
points.insert (std::pair<float,string>(112, "112"));
points.insert (std::pair<float,string>(127, "127"));
} else {
switch (overlay_midi) {
case 1:
@ -859,6 +881,13 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
points.insert (std::pair<float,string>( 72, "72"));
points.insert (std::pair<float,string>(112, "112"));
points.insert (std::pair<float,string>(127, "127"));
case 4:
/* labels that don't overlay with 0dBFS*/
points.insert (std::pair<float,string>( 0, "0"));
points.insert (std::pair<float,string>( 16, "16"));
points.insert (std::pair<float,string>( 48, "48"));
points.insert (std::pair<float,string>( 84, "84"));
points.insert (std::pair<float,string>(100, "100"));
default:
break;
}
@ -947,6 +976,7 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
break;
default:
case MeterPeak:
case MeterPeak0dB:
case MeterKrms:
layout->set_text("dBFS");
break;

1
gtk2_ardour/meter_strip.cc
View File

@ -842,6 +842,7 @@ MeterStrip::popup_level_meter_menu (GdkEventButton* ev)
_suspend_menu_callbacks = true;
add_level_meter_type_item (items, group, ArdourMeter::meter_type_string(MeterPeak), MeterPeak);
add_level_meter_type_item (items, group, ArdourMeter::meter_type_string(MeterPeak0dB), MeterPeak0dB);
add_level_meter_type_item (items, group, ArdourMeter::meter_type_string(MeterKrms), MeterKrms);
add_level_meter_type_item (items, group, ArdourMeter::meter_type_string(MeterIEC1DIN), MeterIEC1DIN);
add_level_meter_type_item (items, group, ArdourMeter::meter_type_string(MeterIEC1NOR), MeterIEC1NOR);

1
gtk2_ardour/mixer_strip.cc
View File

@ -2304,6 +2304,7 @@ MixerStrip::popup_level_meter_menu (GdkEventButton* ev)
items.push_back (SeparatorElem());
add_level_meter_item_type (items, tgroup, ArdourMeter::meter_type_string(MeterPeak), MeterPeak);
add_level_meter_item_type (items, tgroup, ArdourMeter::meter_type_string(MeterPeak0dB), MeterPeak0dB);
add_level_meter_item_type (items, tgroup, ArdourMeter::meter_type_string(MeterKrms), MeterKrms);
add_level_meter_item_type (items, tgroup, ArdourMeter::meter_type_string(MeterIEC1DIN), MeterIEC1DIN);
add_level_meter_item_type (items, tgroup, ArdourMeter::meter_type_string(MeterIEC1NOR), MeterIEC1NOR);