From 847663145390f5fc0a9378c3a663ae0dbf7b506b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Velad=20Galv=C3=A1n?= <ladvan91@hotmail.com>
Date: Tue, 9 Jan 2024 09:42:26 +0100
Subject: [PATCH] fix(HLS): Live recovery after disconnects (#6048)

Fixes https://github.com/shaka-project/shaka-player/issues/6019
---
 lib/hls/hls_parser.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/hls/hls_parser.js b/lib/hls/hls_parser.js
index 65782477b6..5413037e0d 100644
--- a/lib/hls/hls_parser.js
+++ b/lib/hls/hls_parser.js
@@ -3471,6 +3471,13 @@ shaka.hls.HlsParser = class {
     if (this.isLive_() && mediaSequenceToStartTime.has(position)) {
       firstStartTime = mediaSequenceToStartTime.get(position);
     }
+    // This is for recovering from disconnects.
+    if (firstStartTime === 0 &&
+        this.presentationType_ == shaka.hls.HlsParser.PresentationType_.LIVE &&
+        mediaSequenceToStartTime.size > 0 &&
+        !mediaSequenceToStartTime.has(position)) {
+      firstStartTime = this.presentationTimeline_.getSegmentAvailabilityStart();
+    }
 
     /** @type {!Array.<!shaka.media.SegmentReference>} */
     const references = [];