react-native-audio-api/lib/module/options-validators.js

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

"use strict";

import { IndexSizeError, NotSupportedError } from "./errors/index.js";
export const AnalyserOptionsValidator = {
  validate(options) {
    if (!options) {
      return;
    }
    const allowedFFTSize = [32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768];
    if (options.fftSize && !allowedFFTSize.includes(options.fftSize)) {
      throw new IndexSizeError(`fftSize must be one of the following values: ${allowedFFTSize.join(', ')}`);
    }
  }
};
export const ConvolverOptionsValidator = {
  validate(options) {
    if (!options) {
      return;
    }
    if (options.buffer) {
      const numberOfChannels = options.buffer.numberOfChannels;
      if (numberOfChannels !== 1 && numberOfChannels !== 2 && numberOfChannels !== 4) {
        throw new NotSupportedError(`The number of channels provided (${numberOfChannels}) in impulse response for ConvolverNode buffer must be 1 or 2 or 4.`);
      }
    }
  }
};
export const OscillatorOptionsValidator = {
  validate(options) {
    if (!options) {
      return;
    }
    if (options.type === 'custom' && !options.periodicWave) {
      throw new NotSupportedError("'type' cannot be set to 'custom' without providing a 'periodicWave'.");
    }
  }
};
export const PeriodicWaveOptionsValidator = {
  validate(options) {
    if (!options) {
      return;
    }
    if (options.real && options.imag && options.real.length !== options.imag.length) {
      throw new NotSupportedError("'real' and 'imag' arrays must have the same length");
    }
  }
};
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