Signalsmith-Audio/signalsmith-stretch
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Move some methods up so it reads better

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Geraint 2023-05-01 07:49:08 +01:00
parent 605091c29e
commit a9112f4f35
1 changed files with 19 additions and 19 deletions
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38
signalsmith-stretch.h
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@ -65,6 +65,25 @@ struct SignalsmithStretch {
outputMap.resize(stft.bands()); outputMap.resize(stft.bands());
channelPredictions.resize(channels*stft.bands()); channelPredictions.resize(channels*stft.bands());
} }
/// Frequency multiplier, and optional tonality limit (as multiple of sample-rate)
void setTransposeFactor(Sample multiplier, Sample tonalityLimit=0) {
freqMultiplier = multiplier;
if (tonalityLimit > 0) {
freqTonalityLimit = tonalityLimit/std::sqrt(multiplier); // compromise between input and output limits
} else {
freqTonalityLimit = 1;
}
customFreqMap = nullptr;
}
void setTransposeSemitones(Sample semitones, Sample tonalityLimit=0) {
setTransposeFactor(std::pow(2, semitones/12), tonalityLimit);
customFreqMap = nullptr;
}
// Sets a custom frequency map - should be monotonically increasing
void setFreqMap(std::function<Sample(Sample)> inputToOutput) {
customFreqMap = inputToOutput;
}
template<class Inputs, class Outputs> template<class Inputs, class Outputs>
void process(Inputs &&inputs, int inputSamples, Outputs &&outputs, int outputSamples) { void process(Inputs &&inputs, int inputSamples, Outputs &&outputs, int outputSamples) {
@ -211,25 +230,6 @@ struct SignalsmithStretch {
prevInputOffset -= inputSamples; prevInputOffset -= inputSamples;
} }
/// Frequency multiplier, and optional tonality limit (as multiple of sample-rate)
void setTransposeFactor(Sample multiplier, Sample tonalityLimit=0) {
freqMultiplier = multiplier;
if (tonalityLimit > 0) {
freqTonalityLimit = tonalityLimit/std::sqrt(multiplier); // compromise between input and output limits
} else {
freqTonalityLimit = 1;
}
customFreqMap = nullptr;
}
void setTransposeSemitones(Sample semitones, Sample tonalityLimit=0) {
setTransposeFactor(std::pow(2, semitones/12), tonalityLimit);
customFreqMap = nullptr;
}
// Sets a custom frequency map - should be monotonically increasing
void setFreqMap(std::function<Sample(Sample)> inputToOutput) {
customFreqMap = inputToOutput;
}
private: private:
using Complex = std::complex<Sample>; using Complex = std::complex<Sample>;
static constexpr Sample noiseFloor{1e-15}; static constexpr Sample noiseFloor{1e-15};