From 50eb5f277d4fae10423354b1b572138e009bcfa1 Mon Sep 17 00:00:00 2001
From: Ivan Schurawel <anz17n@gmail.com>
Date: Sun, 19 Feb 2023 13:09:37 -0500
Subject: [PATCH] fix: check if primary supports secondary track

---
 src/components/playback/playbackmanager.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/components/playback/playbackmanager.js b/src/components/playback/playbackmanager.js
index 6d95f4b9a..16e617f36 100644
--- a/src/components/playback/playbackmanager.js
+++ b/src/components/playback/playbackmanager.js
@@ -3017,7 +3017,11 @@ class PlaybackManager {
             if (mediaSource) {
                 playerData.audioStreamIndex = mediaSource.DefaultAudioStreamIndex;
                 playerData.subtitleStreamIndex = mediaSource.DefaultSubtitleStreamIndex;
-                playerData.secondarySubtitleStreamIndex = mediaSource.DefaultSecondarySubtitleStreamIndex;
+                if (self.trackHasSecondarySubtitleSupport(mediaSource.MediaStreams[mediaSource.DefaultSubtitleStreamIndex])) {
+                    playerData.secondarySubtitleStreamIndex = mediaSource.DefaultSecondarySubtitleStreamIndex;
+                } else {
+                    playerData.secondarySubtitleStreamIndex = -1;
+                }
             } else {
                 playerData.audioStreamIndex = null;
                 playerData.subtitleStreamIndex = null;