From 22dc7c7785878b5964473d82c4cce941b1a58b1d Mon Sep 17 00:00:00 2001
From: JoshuaDoes <joshuadoespersonalstuff@gmail.com>
Date: Thu, 27 Jul 2023 02:29:49 -0400
Subject: [PATCH] Initial commit

---
 .gitignore                                 |   2 +
 META-INF/com/google/android/update-binary  | 173 +++++++++++++++++++++
 META-INF/com/google/android/updater-script |   1 +
 README.md                                  |  18 +++
 install.sh                                 |  57 +++++++
 module.prop                                |   7 +
 update.json                                |   6 +
 7 files changed, 264 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 META-INF/com/google/android/update-binary
 create mode 100644 META-INF/com/google/android/updater-script
 create mode 100644 README.md
 create mode 100644 install.sh
 create mode 100644 module.prop
 create mode 100644 update.json

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3e26eaf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+# Exclude local Magisk module builds from the repo
+*.zip
\ No newline at end of file
diff --git a/META-INF/com/google/android/update-binary b/META-INF/com/google/android/update-binary
new file mode 100644
index 0000000..29240cd
--- /dev/null
+++ b/META-INF/com/google/android/update-binary
@@ -0,0 +1,173 @@
+#!/sbin/sh
+
+#################
+# Initialization
+#################
+
+umask 022
+
+# Global vars
+TMPDIR=/dev/tmp
+PERSISTDIR=/sbin/.magisk/mirror/persist
+
+rm -rf $TMPDIR 2>/dev/null
+mkdir -p $TMPDIR
+
+# echo before loading util_functions
+ui_print() { echo "$1"; }
+
+require_new_magisk() {
+  ui_print "*******************************"
+  ui_print " Please install Magisk v19.0+! "
+  ui_print "*******************************"
+  exit 1
+}
+
+is_legacy_script() {
+  unzip -l "$ZIPFILE" install.sh | grep -q install.sh
+  return $?
+}
+
+print_modname() {
+  local len
+  len=`echo -n $MODNAME | wc -c`
+  len=$((len + 2))
+  local pounds=`printf "%${len}s" | tr ' ' '*'`
+  ui_print "$pounds"
+  ui_print " $MODNAME "
+  ui_print "$pounds"
+  ui_print "*******************"
+  ui_print " Powered by Magisk "
+  ui_print "*******************"
+}
+
+##############
+# Environment
+##############
+
+OUTFD=$2
+ZIPFILE=$3
+
+mount /data 2>/dev/null
+
+# Load utility functions
+[ -f /data/adb/magisk/util_functions.sh ] || require_new_magisk
+. /data/adb/magisk/util_functions.sh
+[ $MAGISK_VER_CODE -gt 18100 ] || require_new_magisk
+
+# Preperation for flashable zips
+setup_flashable
+
+# Mount partitions
+mount_partitions
+
+# Detect version and architecture
+api_level_arch_detect
+
+# Setup busybox and binaries
+$BOOTMODE && boot_actions || recovery_actions
+
+##############
+# Preparation
+##############
+
+# Extract prop file
+unzip -o "$ZIPFILE" module.prop -d $TMPDIR >&2
+[ ! -f $TMPDIR/module.prop ] && abort "! Unable to extract zip file!"
+
+$BOOTMODE && MODDIRNAME=modules_update || MODDIRNAME=modules
+MODULEROOT=$NVBASE/$MODDIRNAME
+MODID=`grep_prop id $TMPDIR/module.prop`
+MODPATH=$MODULEROOT/$MODID
+MODNAME=`grep_prop name $TMPDIR/module.prop`
+
+# Create mod paths
+rm -rf $MODPATH 2>/dev/null
+mkdir -p $MODPATH
+
+##########
+# Install
+##########
+
+if is_legacy_script; then
+  unzip -oj "$ZIPFILE" module.prop install.sh uninstall.sh 'common/*' -d $TMPDIR >&2
+
+  # Load install script
+  . $TMPDIR/install.sh
+
+  # Callbacks
+  print_modname
+  on_install
+
+  # Custom uninstaller
+  [ -f $TMPDIR/uninstall.sh ] && cp -af $TMPDIR/uninstall.sh $MODPATH/uninstall.sh
+
+  # Skip mount
+  $SKIPMOUNT && touch $MODPATH/skip_mount
+
+  # prop file
+  $PROPFILE && cp -af $TMPDIR/system.prop $MODPATH/system.prop
+
+  # Module info
+  cp -af $TMPDIR/module.prop $MODPATH/module.prop
+
+  # post-fs-data scripts
+  $POSTFSDATA && cp -af $TMPDIR/post-fs-data.sh $MODPATH/post-fs-data.sh
+
+  # service scripts
+  $LATESTARTSERVICE && cp -af $TMPDIR/service.sh $MODPATH/service.sh
+
+  ui_print "- Setting permissions"
+  set_permissions
+else
+  print_modname
+
+  unzip -o "$ZIPFILE" customize.sh -d $MODPATH >&2
+
+  if ! grep -q '^SKIPUNZIP=1$' $MODPATH/customize.sh 2>/dev/null; then
+    ui_print "- Extracting module files"
+    unzip -o "$ZIPFILE" -x 'META-INF/*' -d $MODPATH >&2
+
+    # Default permissions
+    set_perm_recursive $MODPATH 0 0 0755 0644
+  fi
+
+  # Load customization script
+  [ -f $MODPATH/customize.sh ] && . $MODPATH/customize.sh
+fi
+
+# Handle replace folders
+for TARGET in $REPLACE; do
+  ui_print "- Replace target: $TARGET"
+  mktouch $MODPATH$TARGET/.replace
+done
+
+if $BOOTMODE; then
+  # Update info for Magisk Manager
+  mktouch $NVBASE/modules/$MODID/update
+  cp -af $MODPATH/module.prop $NVBASE/modules/$MODID/module.prop
+fi
+
+# Copy over custom sepolicy rules
+if [ -f $MODPATH/sepolicy.rule -a -e $PERSISTDIR ]; then
+  ui_print "- Installing custom sepolicy patch"
+  PERSISTMOD=$PERSISTDIR/magisk/$MODID
+  mkdir -p $PERSISTMOD
+  cp -af $MODPATH/sepolicy.rule $PERSISTMOD/sepolicy.rule
+fi
+
+# Remove stuffs that don't belong to modules
+rm -rf \
+$MODPATH/system/placeholder $MODPATH/customize.sh \
+$MODPATH/README.md $MODPATH/.git* 2>/dev/null
+
+##############
+# Finalizing
+##############
+
+cd /
+$BOOTMODE || recovery_cleanup
+rm -rf $TMPDIR
+
+ui_print "- Done"
+exit 0
diff --git a/META-INF/com/google/android/updater-script b/META-INF/com/google/android/updater-script
new file mode 100644
index 0000000..11d5c96
--- /dev/null
+++ b/META-INF/com/google/android/updater-script
@@ -0,0 +1 @@
+#MAGISK
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..6d88c42
--- /dev/null
+++ b/README.md
@@ -0,0 +1,18 @@
+# Pixel Tensor Audio Decompressor
+
+Made and tested by JoshuaDoes on a Pixel 6 Pro.
+
+# Supported devices
+* Pixel 6 (oriole)
+* Pixel 6 Pro (raven)
+* Pixel 6a (bluejay)
+* Pixel 7 (panther)
+* Pixel 7 Pro (cheetah)
+* Pixel 7a (lynx)
+
+## Changelog
+
+### v1.0.0 (initial release)
+- Raised digital PCM volume from stock value of 817 to 865.
+- Lowered amplifier PCM gain from stock value of 17 to 13.
+- Forced boost peak current limit to 3.50A. This is the default on most ROMs including Google stock, but no longer the default for hentaiOS and its forks.
\ No newline at end of file
diff --git a/install.sh b/install.sh
new file mode 100644
index 0000000..ee98fd5
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,57 @@
+print_modname() {
+  ui_print ""
+  ui_print "***********************************"
+  ui_print "* Pixel Tensor Audio Decompressor *"
+  ui_print "** Made and tested by JoshuaDoes **"
+  ui_print "***********************************"
+  ui_print "For the following devices:"
+  ui_print "- Pixel 6 Pro (raven)"
+  ui_print "- Pixel 6     (oriole)"
+  ui_print "- Pixel 6a    (bluejay)"
+  ui_print "- Pixel 7 Pro (cheetah)"
+  ui_print "- Pixel 7     (panther)"
+  ui_print "- Pixel 7a    (lynx)"
+  ui_print "***********************************"
+  ui_print "The following changes will be made!"
+  ui_print ""
+  ui_print "# Speakers"
+  ui_print "Digital PCM volume:       817 -> 865"
+  ui_print "Amplifier PCM gain:       17 -> 13"
+  ui_print "Boost peak current limit: 3.50A"
+  ui_print ""
+}
+
+on_install() {
+  # raven = Pixel 6 Pro
+  # oriole = Pixel 6
+  # bluejay = Pixel 6a
+  # cheetah = Pixel 7 Pro
+  # panther = Pixel 7
+  # lynx = Pixel 7a
+  if [ $DEVICE != "raven" ] && [ $DEVICE != "oriole" ] && [ $DEVICE != "bluejay" ] && [ $DEVICE != "cheetah" ] && [ $DEVICE != "panther" ] && [ $DEVICE != "lynx" ]; then
+    abort "* "$DEVICE" is not supported!"
+  fi
+
+  if [ $RELEASE != "13" ]; then
+    abort "* Android "$RELEASE" is not supported!"
+  fi
+
+  ui_print "- Copying mixer paths to a temporary location"
+  cp "/vendor/etc/mixer_paths.xml" "$TMPDIR/mixer_paths.xml"
+  ui_print "- Patching mixer paths using sed"
+  sed -r 's/AMP PCM Gain" value="17/AMP PCM Gain" value="13/g; s/Digital PCM Volume" value="817/Digital PCM Volume" value="865/g; s/Boost Peak Current Limit" value="(.*)A/Boost Peak Current Limit" value="3.50A/g' "$TMPDIR/mixer_paths.xml" > "$TMPDIR/mixer_paths2.xml"
+  ui_print "- Installing patched mixer paths systemfully into module path"
+  mkdir -p "$MODPATH/system/vendor/etc"
+  mv "$TMPDIR/mixer_paths2.xml" "$MODPATH/system/vendor/etc/mixer_paths.xml"
+  ui_print "- Cleaning up temporary files"
+  rm "$TMPDIR/mixer_paths.xml"
+  rm "$TMPDIR/mixer_paths2.xml"
+
+  ui_print ""
+  ui_print "* Reboot and listen to some audio!"
+  ui_print ""
+}
+
+set_permissions() {
+  set_perm_recursive $MODPATH 0 0 0755 0644
+}
diff --git a/module.prop b/module.prop
new file mode 100644
index 0000000..081746d
--- /dev/null
+++ b/module.prop
@@ -0,0 +1,7 @@
+id=pixel-tensor-audio-decompressor
+name=Pixel Tensor Audio Decompressor
+version=v1.0.0
+versionCode=100
+author=JoshuaDoes
+description=Patches mixer_paths.xml on Pixel Tensor devices to decompress the digital PCM volume.
+updateJson=https://raw.githubusercontent.com/JoshuaDoes/pixel-tensor-audio-decompressor/dev/update.json
diff --git a/update.json b/update.json
new file mode 100644
index 0000000..6634bc6
--- /dev/null
+++ b/update.json
@@ -0,0 +1,6 @@
+{
+	"version": "v1.0.0",
+	"versionCode": 100,
+	"zipUrl": "https://github.com/JoshuaDoes/pixel-tensor-audio-decompressor/releases/download/100/pixel-tensor-audio-decompressor-v1.0.0.zip",
+	"changelog": "https://raw.githubusercontent.com/JoshuaDoes/pixel-tensor-audio-decompressor/dev/README.md"
+}