Make MP3 next frame location more strict for better recovery (fixes #382), fix Date timezone for ID3 tags

test/browser/mp3.test.ts

@@ -0,0 +1,21 @@
+import { test } from 'vitest';
+import { Input } from '../../src/input.js';
+import { UrlSource } from '../../src/source.js';
+import { ALL_FORMATS } from '../../src/input-format.js';
+import { assert } from '../../src/misc.js';
+import { AudioSampleSink } from '../../src/media-sink.js';
+
+// "joined" in the sense that it was two separate MP3s that were spliced together (I think)
+test('Can decode malformed joined MP3', async () => {
+	using input = new Input({
+		source: new UrlSource('/malformed-join.mp3'),
+		formats: ALL_FORMATS,
+	});
+
+	const audioTrack = await input.getPrimaryAudioTrack();
+	assert(audioTrack);
+
+	const sink = new AudioSampleSink(audioTrack);
+	// eslint-disable-next-line @typescript-eslint/no-unused-vars
+	for await (using sample of sink.samples());
+});