From 6fbb30c3e20083924612fdda70e794723b20c109 Mon Sep 17 00:00:00 2001
From: Seth Madison <seth@philo.com>
Date: Thu, 29 Jun 2023 12:46:51 -0700
Subject: [PATCH] Only parse/probe TS for if the reference is not an MP4 and
 not WebM

---
 lib/media/media_source_engine.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/media/media_source_engine.js b/lib/media/media_source_engine.js
index 94e915b377..2d567ea9a3 100644
--- a/lib/media/media_source_engine.js
+++ b/lib/media/media_source_engine.js
@@ -698,7 +698,8 @@ shaka.media.MediaSourceEngine = class {
           timestamp = startTime;
         }
       }
-    } else if (shaka.util.TsParser.probe(uint8ArrayData)) {
+    } else if (!mimeType.includes('/mp4') && !mimeType.includes('/webm') &&
+        shaka.util.TsParser.probe(uint8ArrayData)) {
       const tsParser = new shaka.util.TsParser().parse(uint8ArrayData);
       const startTime = tsParser.getStartTime()[contentType];
       if (startTime != null) {