From ceaa9faba92465bf58cd9ea78ddac77158eabac1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Velad=20Galv=C3=A1n?= <ladvan91@hotmail.com>
Date: Tue, 31 Oct 2023 17:36:20 +0100
Subject: [PATCH] fix(HLS): Fix accessibilityPurpose detection (#5840)

Closes https://github.com/shaka-project/shaka-player/issues/5810
---
 lib/hls/hls_parser.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/hls/hls_parser.js b/lib/hls/hls_parser.js
index 63d397c92b..2e909b2c0c 100644
--- a/lib/hls/hls_parser.js
+++ b/lib/hls/hls_parser.js
@@ -2361,6 +2361,7 @@ shaka.hls.HlsParser = class {
     }
 
     let kind = undefined;
+    let accessibilityPurpose = null;
     if (type == shaka.util.ManifestParserUtils.ContentType.TEXT) {
       if (roles.includes('public.accessibility.transcribes-spoken-dialog') &&
           roles.includes('public.accessibility.describes-music-and-sound')) {
@@ -2368,6 +2369,11 @@ shaka.hls.HlsParser = class {
       } else {
         kind = shaka.util.ManifestParserUtils.TextStreamKind.SUBTITLE;
       }
+    } else {
+      if (roles.includes('public.accessibility.describes-video')) {
+        accessibilityPurpose =
+              shaka.media.ManifestParser.AccessibilityPurpose.VISUALLY_IMPAIRED;
+      }
     }
 
     // If there are no roles, and we have defaulted to the subtitle "kind" for
@@ -2412,7 +2418,7 @@ shaka.hls.HlsParser = class {
       hdr: undefined,
       videoLayout: undefined,
       tilesLayout: undefined,
-      accessibilityPurpose: null,
+      accessibilityPurpose: accessibilityPurpose,
       external: false,
     };
   }