From 0daa00fc7f074c1c86968ed0fcd84bc30254ee6d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Velad=20Galv=C3=A1n?= <alvaro.velad@mirada.tv>
Date: Fri, 18 Feb 2022 04:52:36 +0100
Subject: [PATCH] feat!(hls): HLS disabled in old browsers/platforms due to
 incompatibilities (#3964)

In Tizen 2/3 and WebOS 3.x there is no support for SourceBuffer.mode=sequence so as a result of change #2337, it necessary disable support for the HLS parser so that the user can at least use the native one with src= .
---
 README.md             |  2 ++
 lib/hls/hls_parser.js | 17 ++++++++++-------
 lib/util/platform.js  | 12 ++++++++++++
 3 files changed, 24 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index 5efacbc652..35f83781db 100644
--- a/README.md
+++ b/README.md
@@ -112,6 +112,8 @@ DASH features **not** supported:
 
 ## HLS features
 
+**Only supported on browsers with SourceBuffer.mode=sequence support**
+
 HLS features supported:
  - VOD, Live, and Event types
  - Low-latency streaming with partial segments, preload hints, and delta updates
diff --git a/lib/hls/hls_parser.js b/lib/hls/hls_parser.js
index 3fb4c49914..3b78cebbe6 100644
--- a/lib/hls/hls_parser.js
+++ b/lib/hls/hls_parser.js
@@ -2497,10 +2497,13 @@ shaka.hls.HlsParser.PresentationType_ = {
   LIVE: 'LIVE',
 };
 
-
-shaka.media.ManifestParser.registerParserByExtension(
-    'm3u8', () => new shaka.hls.HlsParser());
-shaka.media.ManifestParser.registerParserByMime(
-    'application/x-mpegurl', () => new shaka.hls.HlsParser());
-shaka.media.ManifestParser.registerParserByMime(
-    'application/vnd.apple.mpegurl', () => new shaka.hls.HlsParser());
+if (!shaka.util.Platform.isTizen3() &&
+    !shaka.util.Platform.isTizen2() &&
+    !shaka.util.Platform.isWebOS3()) {
+  shaka.media.ManifestParser.registerParserByExtension(
+      'm3u8', () => new shaka.hls.HlsParser());
+  shaka.media.ManifestParser.registerParserByMime(
+      'application/x-mpegurl', () => new shaka.hls.HlsParser());
+  shaka.media.ManifestParser.registerParserByMime(
+      'application/vnd.apple.mpegurl', () => new shaka.hls.HlsParser());
+}
diff --git a/lib/util/platform.js b/lib/util/platform.js
index 49dce396cf..cd91fdd571 100644
--- a/lib/util/platform.js
+++ b/lib/util/platform.js
@@ -142,6 +142,18 @@ shaka.util.Platform = class {
     return shaka.util.Platform.userAgentContains_('Web0S');
   }
 
+  /**
+   * Check if the current platform is a WebOS 3.
+   *
+   * @return {boolean}
+   */
+  static isWebOS3() {
+    // See: http://webostv.developer.lge.com/discover/specifications/web-engine/
+    return shaka.util.Platform.userAgentContains_('Web0S') &&
+        shaka.util.Platform.userAgentContains_(
+            'Chrome/38.0.2125.122 Safari/537.36');
+  }
+
   /**
    * Check if the current platform is a Google Chromecast.
    *