From 7bcb86e5103ecc6d4ce09498899650493fb88557 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Velad=20Galv=C3=A1n?= <ladvan91@hotmail.com>
Date: Wed, 5 Jun 2024 14:36:41 +0200
Subject: [PATCH] fix(HLS): Fix seekRange when using delta playlist (#6758)

Only happens when we use `useSafariBehaviorForLive = false`.
---
 lib/hls/hls_parser.js     | 2 +-
 test/hls/hls_live_unit.js | 8 ++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/hls/hls_parser.js b/lib/hls/hls_parser.js
index 85e9b2114a..94ebc02b89 100644
--- a/lib/hls/hls_parser.js
+++ b/lib/hls/hls_parser.js
@@ -493,7 +493,7 @@ shaka.hls.HlsParser = class {
           mediaSequenceNumber);
       stream.segmentIndex.evict(playlistStartTime);
     }
-    const oldSegment = segments[0];
+    const oldSegment = stream.segmentIndex.earliestReference();
     goog.asserts.assert(oldSegment, 'Should have segments!');
 
     streamInfo.minTimestamp = oldSegment.startTime;
diff --git a/test/hls/hls_live_unit.js b/test/hls/hls_live_unit.js
index 51bd98fa53..04f759e76b 100644
--- a/test/hls/hls_live_unit.js
+++ b/test/hls/hls_live_unit.js
@@ -1110,6 +1110,8 @@ describe('HlsParser live', () => {
           '#EXT-X-SERVER-CONTROL:CAN-BLOCK-RELOAD=YES,CAN-SKIP-UNTIL=60.0,\n',
           '#EXT-X-SKIP:SKIPPED-SEGMENTS=1\n',
           '#EXTINF:2,\n',
+          'main1.mp4\n',
+          '#EXTINF:2,\n',
           'main2.mp4\n',
         ].join('');
 
@@ -1121,6 +1123,8 @@ describe('HlsParser live', () => {
           '#EXT-X-SERVER-CONTROL:CAN-BLOCK-RELOAD=YES,CAN-SKIP-UNTIL=60.0,\n',
           '#EXT-X-SKIP:SKIPPED-SEGMENTS=1\n',
           '#EXTINF:2,\n',
+          'main2.mp4\n',
+          '#EXTINF:2,\n',
           'main3.mp4\n',
         ].join('');
 
@@ -1128,7 +1132,7 @@ describe('HlsParser live', () => {
             'test:/video?_HLS_msn=2&_HLS_skip=YES', mediaWithSkippedSegments1);
 
         fakeNetEngine.setResponseText(
-            'test:/video?_HLS_msn=3&_HLS_skip=YES', mediaWithSkippedSegments2);
+            'test:/video?_HLS_msn=4&_HLS_skip=YES', mediaWithSkippedSegments2);
 
         playerInterface.isLowLatencyMode = () => true;
 
@@ -1145,7 +1149,7 @@ describe('HlsParser live', () => {
 
         await delayForUpdatePeriod();
         fakeNetEngine.expectRequest(
-            'test:/video?_HLS_msn=3&_HLS_skip=YES',
+            'test:/video?_HLS_msn=4&_HLS_skip=YES',
             shaka.net.NetworkingEngine.RequestType.MANIFEST,
             {type:
               shaka.net.NetworkingEngine.AdvancedRequestType.MEDIA_PLAYLIST});