react-native-audio-api/lib/module/core/PeriodicWave.js

react-native-audio-api provides system for controlling audio in React Native environment compatible with Web Audio API specification

"use strict";

import { PeriodicWaveOptionsValidator } from "../options-validators.js";
export function generateRealAndImag(options) {
  let real;
  let imag;
  if (!options || !options.real && !options.imag) {
    real = new Float32Array(2);
    imag = new Float32Array(2);
    imag[1] = 1;
  } else {
    real = options.real;
    imag = options.imag;
    PeriodicWaveOptionsValidator.validate(options);
    if (real && !imag) {
      imag = new Float32Array(real.length);
    } else if (!real && imag) {
      real = new Float32Array(imag.length);
    }
  }
  const norm = options?.disableNormalization ? options.disableNormalization : false;
  return {
    real,
    imag,
    disableNormalization: norm
  };
}
export default class PeriodicWave {
  /** @internal */

  constructor(context, options) {
    const finalOptions = generateRealAndImag(options);
    this.periodicWave = context.context.createPeriodicWave(finalOptions.real, finalOptions.imag, finalOptions.disableNormalization);
  }
}
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