Ensure extensions work with huge timestamps, fix AC3 and AAC extension's behavior with huge timestamps

dev/convert.html

@@ -6,7 +6,7 @@
 
 <script type="module">
 	//MediabunnyMp3Encoder.registerMp3Encoder();
-	MediabunnyAc3.registerAc3Encoder();
+	MediabunnyAc3.registerAc3Decoder();
 
 	const fileInput = document.createElement('input');
 	fileInput.type = 'file';
@@ -59,7 +59,7 @@
 
 		if (true) {
 			input = new Mediabunny.Input({
-				source: new Mediabunny.UrlSource('https://stream.mux.com/v69RSHhFelSm4701snP22dYz2jICy4E4FUyk02rW4gxRM.m3u8'),
+				source: new Mediabunny.UrlSource('http://localhost:8000/index.m3u8'),
 				formats: Mediabunny.ALL_FORMATS,
 			});
 
@@ -87,6 +87,7 @@
 
 		const primaryTrack = await input.getPrimaryAudioTrack();
 		const startTime = await primaryTrack.getFirstTimestamp();
+		console.log(startTime)
 
 		let ctx = null;
 		let conversion = await Mediabunny.Conversion.init({