From 34b69fa3b03c4cb1a0351f8ea81fd39510657b80 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Velad=20Galv=C3=A1n?= <ladvan91@hotmail.com>
Date: Tue, 7 Jan 2025 13:24:05 +0100
Subject: [PATCH] fix(HLS): Fix audio detection when there is no audio data but
 it appears in PMT (#7838)

---
 lib/media/segment_utils.js | 30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

diff --git a/lib/media/segment_utils.js b/lib/media/segment_utils.js
index 8fbcb248f0..058b661af3 100644
--- a/lib/media/segment_utils.js
+++ b/lib/media/segment_utils.js
@@ -64,24 +64,34 @@ shaka.media.SegmentUtils = class {
       switch (tsCodecs.audio) {
         case 'aac':
         case 'aac-loas':
-          codecs.push('mp4a.40.2');
-          hasAudio = true;
+          if (tsParser.getAudioData().length) {
+            codecs.push('mp4a.40.2');
+            hasAudio = true;
+          }
           break;
         case 'mp3':
-          codecs.push('mp4a.40.34');
-          hasAudio = true;
+          if (tsParser.getAudioData().length) {
+            codecs.push('mp4a.40.34');
+            hasAudio = true;
+          }
           break;
         case 'ac3':
-          codecs.push('ac-3');
-          hasAudio = true;
+          if (tsParser.getAudioData().length) {
+            codecs.push('ac-3');
+            hasAudio = true;
+          }
           break;
         case 'ec3':
-          codecs.push('ec-3');
-          hasAudio = true;
+          if (tsParser.getAudioData().length) {
+            codecs.push('ec-3');
+            hasAudio = true;
+          }
           break;
         case 'opus':
-          codecs.push('opus');
-          hasAudio = true;
+          if (tsParser.getAudioData().length) {
+            codecs.push('opus');
+            hasAudio = true;
+          }
           break;
       }
     }