tone
Version:
A Web Audio framework for making interactive music in the browser.
41 lines • 1.57 kB
JavaScript
import { ToneAudioNode, } from "../context/ToneAudioNode.js";
import { noOp } from "../util/Interface.js";
import { getWorkletGlobalScope } from "./WorkletGlobalScope.js";
export class ToneAudioWorklet extends ToneAudioNode {
constructor(options) {
super(options);
this.name = "ToneAudioWorklet";
/**
* The constructor options for the node
*/
this.workletOptions = {};
/**
* Callback which is invoked when there is an error in the processing
*/
this.onprocessorerror = noOp;
const blobUrl = URL.createObjectURL(new Blob([getWorkletGlobalScope()], { type: "text/javascript" }));
const name = this._audioWorkletName();
this._dummyGain = this.context.createGain();
this._dummyParam = this._dummyGain.gain;
// Register the processor
this.context.addAudioWorkletModule(blobUrl).then(() => {
// create the worklet when it's read
if (!this.disposed) {
this._worklet = this.context.createAudioWorkletNode(name, this.workletOptions);
this._worklet.onprocessorerror =
this.onprocessorerror.bind(this);
this.onReady(this._worklet);
}
});
}
dispose() {
super.dispose();
this._dummyGain.disconnect();
if (this._worklet) {
this._worklet.port.postMessage("dispose");
this._worklet.disconnect();
}
return this;
}
}
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