From 66cc06b0a9e4de8489b4bd93f68b0d3d9f51ee0a Mon Sep 17 00:00:00 2001
From: Alberto Ponces <ponces26@gmail.com>
Date: Thu, 2 Dec 2021 09:52:32 +0000
Subject: [PATCH] Disable soundvolume effect on Xiaomi Mi 11 Lite 5G

 Fixes audio distorsion on this device and may fix on other Qualcomm devices
---
 phh-prop-handler.sh | 16 ++++++++++++++++
 vndk.rc             |  3 +++
 2 files changed, 19 insertions(+)

diff --git a/phh-prop-handler.sh b/phh-prop-handler.sh
index a6c9765..8b65a68 100644
--- a/phh-prop-handler.sh
+++ b/phh-prop-handler.sh
@@ -184,3 +184,19 @@ if [ "$1" == "persist.sys.phh.backlight.scale" ];then
     fi
     exit
 fi
+
+if [ "$1" == "persist.sys.phh.disable_soundvolume_effect" ];then
+    if [[ "$prop_value" != "0" && "$prop_value" != "1" ]]; then
+        exit 1
+    fi
+
+    if [[ "$prop_value" == 1 ]];then
+        mount /system/phh/empty /vendor/lib/soundfx/libvolumelistener.so
+        mount /system/phh/empty /vendor/lib64/soundfx/libvolumelistener.so
+    else
+        umount /vendor/lib/soundfx/libvolumelistener.so
+        umount /vendor/lib64/soundfx/libvolumelistener.so
+    fi
+    restartAudio
+    exit
+fi
diff --git a/vndk.rc b/vndk.rc
index 4adfe9e..d7cc703 100644
--- a/vndk.rc
+++ b/vndk.rc
@@ -47,6 +47,9 @@ on property:persist.sys.phh.vsmart.dt2w=*
 on property:persist.sys.phh.backlight.scale=*
     exec u:r:phhsu_daemon:s0 root -- /system/bin/phh-prop-handler.sh "persist.sys.phh.backlight.scale"
 
+on property:persist.sys.phh.disable_soundvolume_effect=*
+    exec u:r:phhsu_daemon:s0 root -- /system/bin/phh-prop-handler.sh "persist.sys.phh.disable_soundvolume_effect"
+
 on property:ro.sf.lcd_density=*
     restart surfaceflinger