From c9dcebed6f28a5195cc4cc3c2c4f15520d4fe454 Mon Sep 17 00:00:00 2001
From: Vanilagy <1696106+Vanilagy@users.noreply.github.com>
Date: Tue, 12 Aug 2025 08:53:25 +0200
Subject: [PATCH] Skip zero-length AudioSamples

---
 src/media-sink.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/media-sink.ts b/src/media-sink.ts
index aec70e7..6c4de94 100644
--- a/src/media-sink.ts
+++ b/src/media-sink.ts
@@ -1248,9 +1248,15 @@ class AudioDecoderWrapper extends DecoderWrapper<AudioSample> {
 		super(onSample, onError);
 
 		const sampleHandler = (sample: AudioSample) => {
-			const sampleRate = decoderConfig.sampleRate;
+			if (sample.numberOfFrames === 0) {
+				// We skip zero-data (empty) AudioSamples. These are sometimes emitted, for example, by Firefox when it
+				// decodes Vorbis (at the start).
+				sample.close();
+				return;
+			}
 
 			// Round the timestamp to the sample rate
+			const sampleRate = decoderConfig.sampleRate;
 			sample.setTimestamp(Math.round(sample.timestamp * sampleRate) / sampleRate);
 
 			onSample(sample);