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vamp-true-peak: collect peak locations >= -1dBTP

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This commit is contained in:
Robin Gareus 2016-02-12 12:38:54 +01:00
parent 4fd47182f2
commit a60312cfea
2 changed files with 40 additions and 16 deletions
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53
libs/vamp-plugins/TruePeak.cpp
View File

@ -386,32 +386,32 @@ TruePeakdsp::process (float const *d, int n)
_src.out_data = _buf;
_src.process ();
float m = _res ? 0 : _m;
float p = _res ? 0 : _p;
float x = 0;
float v;
float *b = _buf;
while (n--) {
v = fabsf(*b++);
if (v > m) m = v;
if (v > p) p = v;
if (v > x) x = v;
v = fabsf(*b++);
if (v > m) m = v;
if (v > p) p = v;
if (v > x) x = v;
v = fabsf(*b++);
if (v > m) m = v;
if (v > p) p = v;
if (v > x) x = v;
v = fabsf(*b++);
if (v > m) m = v;
if (v > p) p = v;
if (v > x) x = v;
}
if (_res) {
_m = m;
_p = p;
_m = x;
_res = false;
} else {
if (m > _m) { _m = m; }
if (p > _p) { _p = p; }
} else if (x > _m) {
_m = x;
}
if (_res_peak) {
_p = x;
_res_peak = false;
} else if (x > _p) {
_p = x;
}
}
@ -426,6 +426,7 @@ void
TruePeakdsp::read (float &m, float &p)
{
_res = true;
_res_peak = true;
m = _m;
p = _p;
}
@ -469,6 +470,7 @@ using namespace TruePeakMeter;
VampTruePeak::VampTruePeak(float inputSampleRate)
: Plugin(inputSampleRate)
, m_blockSize(0)
, m_rate (inputSampleRate)
{
}
@ -554,6 +556,17 @@ VampTruePeak::getOutputDescriptors() const
zc.sampleType = OutputDescriptor::OneSamplePerStep;
list.push_back(zc);
zc.identifier = "peaks";
zc.name = "TruePeakPeaks";
zc.description = "Location of Peaks above -1dBTP";
zc.unit = "sec";
zc.hasFixedBinCount = true;
zc.binCount = 0;
zc.hasKnownExtents = false;
zc.isQuantized = false;
zc.sampleType = OutputDescriptor::OneSamplePerStep;
list.push_back(zc);
return list;
}
@ -570,7 +583,12 @@ VampTruePeak::process(const float *const *inputBuffers,
_meter.process (inputBuffers[0], m_blockSize);
// TODO return momentary
// TODO optional (not rt safe)
if (_meter.read () >= .89125 /* -1dBTP */) {
long f = Vamp::RealTime::realTime2Frame (timestamp, m_rate);
_above_m1.values.push_back ((float) f);
}
return FeatureSet();
}
@ -587,5 +605,8 @@ VampTruePeak::getRemainingFeatures()
dbtp.values.push_back(p);
returnFeatures[0].push_back(dbtp);
_above_m1.hasTimestamp = false;
returnFeatures[1].push_back(_above_m1);
return returnFeatures;
}

3
libs/vamp-plugins/TruePeak.h
View File

@ -130,6 +130,7 @@ private:
float _m;
float _p;
bool _res;
bool _res_peak;
float *_buf;
Resampler _src;
};
@ -169,6 +170,8 @@ protected:
private:
TruePeakMeter::TruePeakdsp _meter;
Feature _above_m1;
unsigned int m_rate;
};
#endif