#include <algorithm>
#include <cmath>
+#include <limits>
#include "pbd/compose.h"
Iec1ppmdsp::init(s.nominal_frame_rate());
Iec2ppmdsp::init(s.nominal_frame_rate());
Vumeterdsp::init(s.nominal_frame_rate());
+ _pending_active = true;
+ _meter_type = MeterPeak;
}
PeakMeter::~PeakMeter ()
// Meter audio in to the rest of the peaks
for (uint32_t i = 0; i < n_audio; ++i, ++n) {
- _peak_signal[n] = compute_peak (bufs.get_audio(i).data(), nframes, _peak_signal[n]);
- if (_meter_type & MeterKrms) {
+ if (bufs.get_audio(i).silent()) {
+ _peak_signal[n] = .0f;
+ } else {
+ _peak_signal[n] = compute_peak (bufs.get_audio(i).data(), nframes, _peak_signal[n]);
+ }
+ if (_meter_type & (MeterKrms | MeterK20 | MeterK14 | MeterK12)) {
_kmeter[i]->process(bufs.get_audio(i).data(), nframes);
}
- if (_meter_type & MeterIEC1) {
+ if (_meter_type & (MeterIEC1DIN | MeterIEC1NOR)) {
_iec1meter[i]->process(bufs.get_audio(i).data(), nframes);
}
- if (_meter_type & MeterIEC2) {
+ if (_meter_type & (MeterIEC2BBC | MeterIEC2EBU)) {
_iec2meter[i]->process(bufs.get_audio(i).data(), nframes);
}
if (_meter_type & MeterVU) {
for (size_t i = 0; i < _peak_signal.size(); ++i) {
_peak_signal[i] = 0.0f;
}
+
+ for (size_t n = 0; n < _kmeter.size(); ++n) {
+ _kmeter[n]->reset();
+ _iec1meter[n]->reset();
+ _iec2meter[n]->reset();
+ _vumeter[n]->reset();
+ }
}
void
PeakMeter::reset_max ()
{
for (size_t i = 0; i < _max_peak_power.size(); ++i) {
- _max_peak_power[i] = -INFINITY;
+ _max_peak_power[i] = -std::numeric_limits<float>::infinity();
_max_peak_signal[i] = 0;
}
+
+ const size_t n_midi = min (_peak_signal.size(), (size_t) current_meters.n_midi());
+
+ for (size_t n = 0; n < _peak_signal.size(); ++n) {
+ if (n < n_midi) {
+ _visible_peak_power[n] = 0;
+ } else {
+ _visible_peak_power[n] = -std::numeric_limits<float>::infinity();
+ }
+ }
}
bool
-PeakMeter::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
+PeakMeter::can_support_io_configuration (const ChanCount& in, ChanCount& out)
{
out = in;
return true;
void
PeakMeter::reflect_inputs (const ChanCount& in)
{
- current_meters = in;
-
- const size_t limit = min (_peak_signal.size(), (size_t) current_meters.n_total ());
- const size_t n_midi = min (_peak_signal.size(), (size_t) current_meters.n_midi());
- const size_t n_audio = current_meters.n_audio();
-
- for (size_t n = 0; n < limit; ++n) {
- if (n < n_midi) {
- _visible_peak_power[n] = 0;
- } else {
- _visible_peak_power[n] = -INFINITY;
+ for (uint32_t i = in.n_total(); i < current_meters.n_total(); ++i) {
+ if (i < _peak_signal.size()) {
+ _peak_signal[i] = 0.0f;
}
}
-
- for (size_t n = 0; n < n_audio; ++n) {
- _kmeter[n]->reset();
- _iec1meter[n]->reset();
- _iec2meter[n]->reset();
- _vumeter[n]->reset();
+ for (uint32_t i = in.n_audio(); i < current_meters.n_audio(); ++i) {
+ if (i >= _kmeter.size()) continue;
+ _kmeter[i]->reset();
+ _iec1meter[i]->reset();
+ _iec2meter[i]->reset();
+ _vumeter[i]->reset();
}
+ current_meters = in;
reset_max();
ConfigurationChanged (in, in); /* EMIT SIGNAL */
assert(_iec1meter.size() == n_audio);
assert(_iec2meter.size() == n_audio);
assert(_vumeter.size() == n_audio);
+
+ reset();
+ reset_max();
}
/** To be driven by the Meter signal from IO.
return;
}
- assert(_visible_peak_power.size() == _peak_signal.size());
+ // TODO block this thread while PeakMeter::reset_max_channels() is
+ // reallocating channels.
+ // (may happen with Session > New: old session not yet closed,
+ // meter-thread still active while new one is initializing and
+ // maybe on other occasions, too)
+ if ( (_visible_peak_power.size() != _peak_signal.size())
+ || (_max_peak_power.size() != _peak_signal.size())
+ || (_max_peak_signal.size() != _peak_signal.size())
+ ) {
+ return;
+ }
const size_t limit = min (_peak_signal.size(), (size_t) current_meters.n_total ());
const size_t n_midi = min (_peak_signal.size(), (size_t) current_meters.n_midi());
+ /* 0.01f ^= 100 Hz update rate */
+ const float midi_meter_falloff = Config->get_meter_falloff() * 0.01f;
+ /* kmeters: 24dB / 2 sec */
+ const float audio_meter_falloff = (_meter_type & (MeterK20 | MeterK14 | MeterK12)) ? 0.12f : midi_meter_falloff;
+
for (size_t n = 0; n < limit; ++n) {
/* grab peak since last read */
_peak_signal[n] = 0; /* ... to here */
if (n < n_midi) {
- _max_peak_power[n] = -INFINITY; // std::max (new_peak, _max_peak_power[n]); // XXX
+ _max_peak_power[n] = -std::numeric_limits<float>::infinity(); // std::max (new_peak, _max_peak_power[n]); // XXX
_max_peak_signal[n] = 0;
- if (Config->get_meter_falloff() == 0.0f || new_peak > _visible_peak_power[n]) {
+ if (midi_meter_falloff == 0.0f || new_peak > _visible_peak_power[n]) {
;
} else {
- /* empirical WRT to falloff times , 0.01f ^= 100 Hz update rate */
- new_peak = _visible_peak_power[n] - sqrt(_visible_peak_power[n] * Config->get_meter_falloff() * 0.01f * 0.0002f);
+ /* empirical algorithm WRT to audio falloff times */
+ new_peak = _visible_peak_power[n] - sqrt(_visible_peak_power[n] * midi_meter_falloff * 0.0002f);
if (new_peak < (1.0 / 512.0)) new_peak = 0;
}
_visible_peak_power[n] = new_peak;
_max_peak_power[n] = std::max (new_peak, _max_peak_power[n]);
- if (Config->get_meter_falloff() == 0.0f || new_peak > _visible_peak_power[n]) {
+ if (audio_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] - (Config->get_meter_falloff() * 0.01f);
- _visible_peak_power[n] = std::max (new_peak, -INFINITY);
+ new_peak = _visible_peak_power[n] - (audio_meter_falloff);
+ _visible_peak_power[n] = std::max (new_peak, -std::numeric_limits<float>::infinity());
}
}
}
+#define CHECKSIZE(MTR) (n < MTR.size() + n_midi && n >= n_midi)
+
float
PeakMeter::meter_level(uint32_t n, MeterType type) {
switch (type) {
case MeterKrms:
+ case MeterK20:
+ case MeterK14:
+ case MeterK12:
{
const uint32_t n_midi = current_meters.n_midi();
- if ((n - n_midi) < _kmeter.size() && (n - n_midi) >= 0) {
+ if (CHECKSIZE(_kmeter)) {
return accurate_coefficient_to_dB (_kmeter[n - n_midi]->read());
}
}
break;
- case MeterIEC1:
+ case MeterIEC1DIN:
+ case MeterIEC1NOR:
{
const uint32_t n_midi = current_meters.n_midi();
- if ((n - n_midi) < _iec1meter.size() && (n - n_midi) >= 0) {
+ if (CHECKSIZE(_iec1meter)) {
return accurate_coefficient_to_dB (_iec1meter[n - n_midi]->read());
}
}
break;
- case MeterIEC2:
+ case MeterIEC2BBC:
+ case MeterIEC2EBU:
{
const uint32_t n_midi = current_meters.n_midi();
- if ((n - n_midi) < _iec2meter.size() && (n - n_midi) >= 0) {
+ if (CHECKSIZE(_iec2meter)) {
return accurate_coefficient_to_dB (_iec2meter[n - n_midi]->read());
}
}
case MeterVU:
{
const uint32_t n_midi = current_meters.n_midi();
- if ((n - n_midi) < _vumeter.size() && (n - n_midi) >= 0) {
+ if (CHECKSIZE(_vumeter)) {
return accurate_coefficient_to_dB (_vumeter[n - n_midi]->read());
}
}
_meter_type = t;
- if (t & MeterKrms) {
+ if (t & (MeterKrms | MeterK20 | MeterK14 | MeterK12)) {
const size_t n_audio = current_meters.n_audio();
for (size_t n = 0; n < n_audio; ++n) {
_kmeter[n]->reset();
}
}
- if (t & MeterIEC1) {
+ if (t & (MeterIEC1DIN | MeterIEC1NOR)) {
const size_t n_audio = current_meters.n_audio();
for (size_t n = 0; n < n_audio; ++n) {
_iec1meter[n]->reset();
}
}
- if (t & MeterIEC2) {
+ if (t & (MeterIEC2BBC | MeterIEC2EBU)) {
const size_t n_audio = current_meters.n_audio();
for (size_t n = 0; n < n_audio; ++n) {
_iec2meter[n]->reset();