: Processor (s, string_compose ("meter-%1", name))
{
Kmeterdsp::init(s.nominal_frame_rate());
+ Iec1ppmdsp::init(s.nominal_frame_rate());
+ Iec2ppmdsp::init(s.nominal_frame_rate());
+ Vumeterdsp::init(s.nominal_frame_rate());
}
PeakMeter::~PeakMeter ()
{
while (_kmeter.size() > 0) {
delete (_kmeter.back());
+ delete (_iec1meter.back());
+ delete (_iec2meter.back());
+ delete (_vumeter.back());
_kmeter.pop_back();
+ _iec1meter.pop_back();
+ _iec2meter.pop_back();
+ _vumeter.pop_back();
}
}
* Input acceptance is lenient - the first n buffers from @a bufs will
* be metered, where n was set by the last call to setup(), excess meters will
* be set to 0.
+ *
+ * (runs in jack realtime context)
*/
void
PeakMeter::run (BufferSet& bufs, framepos_t /*start_frame*/, framepos_t /*end_frame*/, pframes_t nframes, bool)
// 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 (_meter_type & (MeterKrms | MeterK20 | MeterK14)) {
_kmeter[i]->process(bufs.get_audio(i).data(), nframes);
}
+ if (_meter_type & (MeterIEC1DIN | MeterIEC1NOR)) {
+ _iec1meter[i]->process(bufs.get_audio(i).data(), nframes);
+ }
+ if (_meter_type & (MeterIEC2BBC | MeterIEC2EBU)) {
+ _iec2meter[i]->process(bufs.get_audio(i).data(), nframes);
+ }
+ if (_meter_type & MeterVU) {
+ _vumeter[i]->process(bufs.get_audio(i).data(), nframes);
+ }
}
// Zero any excess peaks
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
_max_peak_power[i] = -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] = -INFINITY;
+ }
+ }
}
bool
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) {
}
}
- for (size_t n = 0; n < n_audio; ++n) {
- _kmeter[n]->reset();
- }
-
+ reset();
reset_max();
ConfigurationChanged (in, in); /* EMIT SIGNAL */
/* alloc/free other audio-only meter types. */
while (_kmeter.size() > n_audio) {
delete (_kmeter.back());
+ delete (_iec1meter.back());
+ delete (_iec2meter.back());
+ delete (_vumeter.back());
_kmeter.pop_back();
+ _iec1meter.pop_back();
+ _iec2meter.pop_back();
+ _vumeter.pop_back();
}
while (_kmeter.size() < n_audio) {
_kmeter.push_back(new Kmeterdsp());
+ _iec1meter.push_back(new Iec1ppmdsp());
+ _iec2meter.push_back(new Iec2ppmdsp());
+ _vumeter.push_back(new Vumeterdsp());
}
assert(_kmeter.size() == n_audio);
+ 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.
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)) ? 0.12f : midi_meter_falloff;
+
for (size_t n = 0; n < limit; ++n) {
/* grab peak since last read */
if (n < n_midi) {
_max_peak_power[n] = -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 */
-#if 1
- new_peak = _visible_peak_power[n] - _visible_peak_power[n] * Config->get_meter_falloff() * 0.01f * 0.05f;
-#else
- new_peak = _visible_peak_power[n] - sqrt(_visible_peak_power[n] * Config->get_meter_falloff() * 0.01f * 0.0002f);
-#endif
+ /* 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_signal[n] = std::max(new_peak, _max_peak_signal[n]);
if (new_peak > 0.0) {
- new_peak = fast_coefficient_to_dB (new_peak);
+ new_peak = accurate_coefficient_to_dB (new_peak);
} else {
new_peak = minus_infinity();
}
_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);
+ new_peak = _visible_peak_power[n] - (audio_meter_falloff);
_visible_peak_power[n] = std::max (new_peak, -INFINITY);
}
}
PeakMeter::meter_level(uint32_t n, MeterType type) {
switch (type) {
case MeterKrms:
+ case MeterK20:
+ case MeterK14:
+ {
+ const int n_midi = current_meters.n_midi();
+ if ((n - n_midi) < _kmeter.size() && (n - n_midi) >= 0) {
+ return accurate_coefficient_to_dB (_kmeter[n - n_midi]->read());
+ }
+ }
+ break;
+ case MeterIEC1DIN:
+ case MeterIEC1NOR:
{
- const uint32_t n_midi = current_meters.n_midi();
- if ((n - n_midi) < _kmeter.size()) {
- return fast_coefficient_to_dB(_kmeter[n]->read());
+ const int n_midi = current_meters.n_midi();
+ if ((n - n_midi) < _iec1meter.size() && (n - n_midi) >= 0) {
+ return accurate_coefficient_to_dB (_iec1meter[n - n_midi]->read());
}
- return minus_infinity();
}
+ break;
+ case MeterIEC2BBC:
+ case MeterIEC2EBU:
+ {
+ const int n_midi = current_meters.n_midi();
+ if ((n - n_midi) < _iec2meter.size() && (n - n_midi) >= 0) {
+ return accurate_coefficient_to_dB (_iec2meter[n - n_midi]->read());
+ }
+ }
+ break;
+ case MeterVU:
+ {
+ const int n_midi = current_meters.n_midi();
+ if ((n - n_midi) < _vumeter.size() && (n - n_midi) >= 0) {
+ return accurate_coefficient_to_dB (_vumeter[n - n_midi]->read());
+ }
+ }
+ break;
case MeterPeak:
return peak_power(n);
case MeterMaxSignal:
if (n < _max_peak_signal.size()) {
return _max_peak_signal[n];
- } else {
- return minus_infinity();
}
+ break;
default:
case MeterMaxPeak:
- return max_peak_power(n);
+ if (n < _max_peak_power.size()) {
+ return _max_peak_power[n];
+ }
+ break;
}
+ return minus_infinity();
}
+
void
PeakMeter::set_type(MeterType t)
{
+ if (t == _meter_type) {
+ return;
+ }
+
_meter_type = t;
- if (t & MeterKrms) {
+ if (t & (MeterKrms | MeterK20 | MeterK14)) {
const size_t n_audio = current_meters.n_audio();
for (size_t n = 0; n < n_audio; ++n) {
_kmeter[n]->reset();
}
}
+ 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 & (MeterIEC2BBC | MeterIEC2EBU)) {
+ const size_t n_audio = current_meters.n_audio();
+ for (size_t n = 0; n < n_audio; ++n) {
+ _iec2meter[n]->reset();
+ }
+ }
+ if (t & MeterVU) {
+ const size_t n_audio = current_meters.n_audio();
+ for (size_t n = 0; n < n_audio; ++n) {
+ _vumeter[n]->reset();
+ }
+ }
+
+ TypeChanged(t);
}
XMLNode&
node.add_property("type", "meter");
return node;
}
-
-
projects / ardour.git / blobdiff