From edf89c48f82da699ae9562b18ad80f210d7b78df Mon Sep 17 00:00:00 2001
From: Daniel Silhavy <daniel.silhavy@fokus.fraunhofer.de>
Date: Mon, 9 Oct 2023 20:02:41 +0200
Subject: [PATCH] Fix/scheduling (#4296)

* Fix bug in the request logic in case fastswitch is enabled. If there is no request that corresponds to a segment in the buffer to be replaced then perform a default quality switch.

* Do not check for a new quality in case we are already performing a default quality switch
---
 package.json                     | 2 +-
 src/streaming/StreamProcessor.js | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/package.json b/package.json
index 21ed8a3199..5a6fd9c8f2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "dashjs",
-    "version": "4.7.2",
+    "version": "4.7.3",
     "description": "A reference client implementation for the playback of MPEG DASH via Javascript and compliant browsers.",
     "author": "Dash Industry Forum",
     "license": "BSD-3-Clause",
diff --git a/src/streaming/StreamProcessor.js b/src/streaming/StreamProcessor.js
index 56bfa81f66..e86cc88592 100644
--- a/src/streaming/StreamProcessor.js
+++ b/src/streaming/StreamProcessor.js
@@ -686,6 +686,7 @@ function StreamProcessor(config) {
         }, { mediaType: type, streamId: streamInfo.id });
 
         // Abort appending segments to the buffer. Also adjust the appendWindow as we might have been in the progress of prebuffering stuff.
+        scheduleController.setCheckPlaybackQuality(false);
         bufferController.prepareForForceReplacementQualitySwitch(representationInfo)
             .then(() => {
                 _bufferClearedForReplacement();
@@ -735,8 +736,7 @@ function StreamProcessor(config) {
                 _prepareForDefaultQualitySwitch(representationInfo);
             }
         } else {
-            scheduleController.startScheduleTimer();
-            qualityChangeInProgress = false;
+            _prepareForDefaultQualitySwitch(representationInfo);
         }
     }
 
@@ -752,6 +752,7 @@ function StreamProcessor(config) {
 
         bufferController.updateBufferTimestampOffset(representationInfo)
             .then(() => {
+                scheduleController.setCheckPlaybackQuality(false);
                 if (mediaInfo.segmentAlignment || mediaInfo.subSegmentAlignment) {
                     scheduleController.startScheduleTimer();
                 } else {