From 0dbde712415af8e7f7b1424c47e47b569f1779ce Mon Sep 17 00:00:00 2001
From: gnattu <gnattuoc@me.com>
Date: Tue, 1 Oct 2024 17:02:50 +0800
Subject: [PATCH] Only add gain node when normalization enabled

---
 src/plugins/htmlAudioPlayer/plugin.js | 11 +++++++++--
 src/strings/en-us.json                |  2 +-
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/plugins/htmlAudioPlayer/plugin.js b/src/plugins/htmlAudioPlayer/plugin.js
index 067d94c48c..99ecb2b4c9 100644
--- a/src/plugins/htmlAudioPlayer/plugin.js
+++ b/src/plugins/htmlAudioPlayer/plugin.js
@@ -121,6 +121,13 @@ class HtmlAudioPlayer {
                     normalizationGain =
                         options.mediaSource.albumNormalizationGain
                         ?? options.item.NormalizationGain;
+                } else {
+                    console.debug('normalization disabled')
+                    return;
+                }
+
+                if (!self.gainNode) {
+                    addGainElement(elem);
                 }
 
                 if (normalizationGain) {
@@ -276,7 +283,7 @@ class HtmlAudioPlayer {
 
             self._mediaElement = elem;
 
-            addGainElement(elem);
+            // addGainElement(elem);
 
             return elem;
         }
@@ -317,7 +324,7 @@ class HtmlAudioPlayer {
         function onVolumeChange() {
             if (!self._isFadingOut) {
                 htmlMediaHelper.saveVolume(this.volume);
-                if (browser.safari) {
+                if (browser.safari && self.gainNode) {
                     self.gainNode.gain.value = this.volume * self.normalizationGain;
                 }
                 Events.trigger(self, 'volumechange');
diff --git a/src/strings/en-us.json b/src/strings/en-us.json
index d2e32a1ff4..5cd78810ef 100644
--- a/src/strings/en-us.json
+++ b/src/strings/en-us.json
@@ -156,7 +156,7 @@
     "ChannelNumber": "Channel number",
     "Channels": "Channels",
     "CinemaModeConfigurationHelp": "Cinema mode brings the theater experience straight to your living room with the ability to play trailers and custom intros before the main feature.",
-    "SelectAudioNormalizationHelp": "Track gain - adjusts the volume of each track so they playback with the same loudness. Album gain - adjusts the volume of all the tracks in an album only, keeping the album's dynamic range.",
+    "SelectAudioNormalizationHelp": "Track gain - adjusts the volume of each track so they playback with the same loudness. Album gain - adjusts the volume of all the tracks in an album only, keeping the album's dynamic range. Switching between \"Off\" and other options requires restarting the current playback.",
     "ClearQueue": "Clear queue",
     "ClientSettings": "Client Settings",
     "Collections": "Collections",