fix(audio-context): AudioBufferSourceNode playbackRate

Author: triniwiz

packages/audio-context/index.android.ts

@@ -420,6 +420,7 @@ export class AudioScheduledSourceNode extends AudioNode {
 }
 
 export class AudioBufferSourceNode extends AudioScheduledSourceNode {
+	private _playbackRateParam: AudioParam | null = null;
 	constructor(context: NativeBaseAudioContext, options: { buffer?: AudioBuffer } = {}) {
 		super(context, AudioContext.getInstance().createBufferSource(context.native, options?.buffer?.native ?? (null as never)));
 	}
@@ -439,6 +440,12 @@ export class AudioBufferSourceNode extends AudioScheduledSourceNode {
 	set buffer(v: AudioBuffer | null) {
 		this.native.setBuffer(v?.native ?? (null as never));
 	}
+
+	get playbackRate(): AudioParam | null {
+		if (this._playbackRateParam) return this._playbackRateParam;
+		this._playbackRateParam = new AudioParam(nativeCtor_, this.native.getPlaybackRateParam());
+		return this._playbackRateParam;
+	}
 }
 
 export class MediaElementAudioSourceNode extends AudioNode {

packages/audio-context/index.ios.ts

@@ -690,6 +690,7 @@ export class PeriodicWave {
 }
 
 export class AudioBufferSourceNode extends AudioScheduledSourceNode {
+	private _playbackRateParam: AudioParam | null = null;
 	constructor(context: NativeBaseAudioContext, options: { buffer?: AudioBuffer } = {}) {
 		const param: NSCAudioBuffer | null = options?.buffer != null ? options.buffer.native : null;
 		super(context, context.native.createBufferSourceNode(param as never));
@@ -713,6 +714,12 @@ export class AudioBufferSourceNode extends AudioScheduledSourceNode {
 	set buffer(v: AudioBuffer | null) {
 		this.native.buffer = v?.native ?? (null as never);
 	}
+
+	get playbackRate(): AudioParam | null {
+		if (this._playbackRateParam) return this._playbackRateParam;
+		this._playbackRateParam = new AudioParam(nativeCtor_, this.native.getPlaybackRateParam());
+		return this._playbackRateParam;
+	}
 }
 
 export class MediaElementAudioSourceNode extends AudioNode {

packages/audio-context/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@nativescript/audio-context",
-	"version": "1.1.3",
+	"version": "1.1.4",
 	"description": "Web Audio API for NativeScript",
 	"main": "index",
 	"types": "index.d.ts",