From 88a771087d0785345c0c1bc3f5407ebd404100a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Velad=20Galv=C3=A1n?= <ladvan91@hotmail.com>
Date: Wed, 19 Apr 2023 19:14:55 +0200
Subject: [PATCH] fix: Fix handling of CC when switching between codecs (#5160)

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

diff --git a/lib/media/media_source_engine.js b/lib/media/media_source_engine.js
index bd7d8b36d37..2c3e703c9de 100644
--- a/lib/media/media_source_engine.js
+++ b/lib/media/media_source_engine.js
@@ -587,7 +587,8 @@ shaka.media.MediaSourceEngine = class {
       data = transmuxedData.data;
     } else if (hasClosedCaptions) {
       if (!this.textEngine_) {
-        this.reinitText('text/vtt', this.sequenceMode_);
+        this.reinitText(shaka.util.MimeUtils.CEA608_CLOSED_CAPTION_MIMETYPE,
+            this.sequenceMode_);
       }
       // If it is the init segment for closed captions, initialize the closed
       // caption parser.
diff --git a/lib/text/text_engine.js b/lib/text/text_engine.js
index 0deebeea5ef..f4a53b50277 100644
--- a/lib/text/text_engine.js
+++ b/lib/text/text_engine.js
@@ -139,6 +139,7 @@ shaka.text.TextEngine = class {
     // into TextEngine and TextDisplayer.
     if (mimeType == shaka.util.MimeUtils.CEA608_CLOSED_CAPTION_MIMETYPE ||
         mimeType == shaka.util.MimeUtils.CEA708_CLOSED_CAPTION_MIMETYPE) {
+      this.parser_ = null;
       return;
     }