Make samples disposable

src/sample.ts

@@ -16,8 +16,11 @@ import {
 	toUint8Array,
 	SetRequired,
 	isFirefox,
+	polyfillSymbolDispose,
 } from './misc';
 
+polyfillSymbolDispose();
+
 /**
  * Metadata used for VideoSample initialization.
  * @group Samples
@@ -49,7 +52,7 @@ export type VideoSampleInit = {
  * @group Samples
  * @public
  */
-export class VideoSample {
+export class VideoSample implements Disposable {
 	/** @internal */
 	_data!: VideoFrame | OffscreenCanvas | Uint8Array | null;
 	/** @internal */
@@ -736,6 +739,11 @@ export class VideoSample {
 		// eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion
 		(this.duration as number) = newDuration;
 	}
+
+	/** Calls `.close()`. */
+	[Symbol.dispose]() {
+		this.close();
+	}
 }
 
 const isVideoFrame = (x: unknown): x is VideoFrame => {
@@ -840,7 +848,7 @@ export type AudioSampleCopyToOptions = {
  * @group Samples
  * @public
  */
-export class AudioSample {
+export class AudioSample implements Disposable {
 	/** @internal */
 	_data: AudioData | Uint8Array;
 	/** @internal */
@@ -1276,6 +1284,11 @@ export class AudioSample {
 		(this.timestamp as number) = newTimestamp;
 	}
 
+	/** Calls `.close()`. */
+	[Symbol.dispose]() {
+		this.close();
+	}
+
 	/** @internal */
 	static* _fromAudioBuffer(audioBuffer: AudioBuffer, timestamp: number) {
 		if (!(audioBuffer instanceof AudioBuffer)) {