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Restructured source codes to be sharable with hifi-maximizer-mod at my another repository.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,254 @@ | ||
| #!/system/bin/sh | ||
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| # Get the active audio policy configuration fille from the audioserever | ||
| function getActivePolicyFile() | ||
| { | ||
| dumpsys media.audio_policy | awk ' | ||
| /^ Config source: / { | ||
| print $3 | ||
| }' | ||
| } | ||
|
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| function stopDRC() | ||
| { | ||
| # stopDRC has two args specifying a main audio policy configuration XML file (eg. audio_policy_configuration.xml) and its dummy one to be overridden | ||
|
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| if [ $# -eq 2 -a -r "$1" -a -w "$2" ]; then | ||
| # Copy and override an original audio_policy_configuration.xml to its dummy file | ||
| cp -f "$1" "$2" | ||
| # Change audio_policy_configuration.xml file to remove DRC | ||
| sed -i 's/speaker_drc_enabled[:space:]*=[:space:]*"true"/speaker_drc_enabled="false"/' "$2" | ||
| fi | ||
| } | ||
|
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||
| function toHexString() | ||
| { | ||
| if [ $# -ge 1 ]; then | ||
| local tmp | ||
| tmp=`echo -n "$1" | xxd -p | tr -d ' \n'` | ||
| if [ $# -eq 2 ]; then | ||
| if [ ${#tmp} -ge $2 ]; then | ||
| echo -n ${tmp:0:$2} | ||
| else | ||
| local strt=`expr ${#tmp} + 1` | ||
| echo -n "$tmp" | ||
| for i in `seq $strt $2` ; do | ||
| echo -n "0" | ||
| done | ||
| fi | ||
| else | ||
| echo -n "$tmp" | ||
| fi | ||
| else | ||
| return 1 | ||
| fi | ||
| } | ||
|
|
||
| # Patch libalsautils.so to map a property string to another | ||
| # arg1: original libalsautils.so file; arg2: patched libalsautils.so file; | ||
| function patchMapProperty() | ||
| { | ||
| local orig_prop='ro.audio.usb.period_us' | ||
| local new_prop='vendor.audio.usb.perio' | ||
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||
| if [ $# -eq 2 -a -r "$1" ]; then | ||
| local pat1=`toHexString "$orig_prop"` | ||
| local pat2=`toHexString "$new_prop" ${#pat1}` | ||
|
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||
| xxd -p <"$1" | tr -d ' \n' | sed -e "s/$pat1/$pat2/" \ | ||
| | awk 'BEGIN { | ||
| foldWidth=60 | ||
| getline buf | ||
| len=length(buf) | ||
| for (i=1; i <= len; i+=foldWidth) { | ||
| if (i + foldWidth - 1 <= len) | ||
| print substr(buf, i, foldWidth) | ||
| else | ||
| print substr(buf, i, len) | ||
| } | ||
| exit | ||
| }' \ | ||
| | xxd -r -p >"$2" | ||
| return $? | ||
| else | ||
| return 1 | ||
| fi | ||
| } | ||
|
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||
| function makeLibraries() | ||
| { | ||
| local MAGISKPATH="$(magisk --path)" | ||
| local d lname | ||
|
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||
| for d in "lib" "lib64"; do | ||
| for lname in "libalsautils.so" "libalsautilsv2.so"; do | ||
| if [ -r "${MAGISKPATH}/.magisk/mirror/vendor/${d}/${lname}" ]; then | ||
| mkdir -p "${MODPATH}/system/vendor/${d}" | ||
| patchMapProperty "${MAGISKPATH}/.magisk/mirror/vendor/${d}/${lname}" "${MODPATH}/system/vendor/${d}/${lname}" | ||
| chmod 644 "${MODPATH}/system/vendor/${d}/${lname}" | ||
| chmod -R a+rX "${MODPATH}/system/vendor/${d}" | ||
| if [ -z "${REPLACE}" ]; then | ||
| REPLACE="/system/vendor/${d}/${lname}" | ||
| else | ||
| REPLACE="${REPLACE} /system/vendor/${d}/${lname}" | ||
| fi | ||
| fi | ||
| done | ||
| done | ||
|
|
||
| } | ||
|
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| # Replace system property values for old Androids and some low performance SoC's | ||
|
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| function loosenedMessage() | ||
| { | ||
| local freq="96kHz" | ||
| if [ $# -gt 0 ]; then | ||
| freq="$1" | ||
| fi | ||
|
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||
| ui_print "" | ||
| ui_print "****************************************************************" | ||
| ui_print " Loosened the USB jitter level for more than $freq USB outputs! " | ||
| ui_print " (\"USB Samplerate Unlocker\" was detected) " | ||
| ui_print "****************************************************************" | ||
| ui_print "" | ||
| } | ||
|
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||
| function replaceSystemProps_Old() | ||
| { | ||
| if [ -e "${MODPATH%/*/*}/modules/usb-samplerate-unlocker" -o -e "${MODPATH%/*/*}/modules_update/usb-samplerate-unlocker" ]; then | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=3875/' \ | ||
| "$MODPATH/system.prop" | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=3875/' \ | ||
| "$MODPATH/system.prop-workaround" | ||
|
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| loosenedMessage | ||
|
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||
| else | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2625/' \ | ||
| "$MODPATH/system.prop" | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2625/' \ | ||
| "$MODPATH/system.prop-workaround" | ||
|
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||
| fi | ||
|
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| sed -i \ | ||
| -e 's/ro\.audio\.resampler\.psd\.enable_at_samplerate=.*$/ro\.audio\.resampler\.psd\.enable_at_samplerate=48000/' \ | ||
| -e 's/ro\.audio\.resampler\.psd\.stopband=.*$/ro\.audio\.resampler\.psd\.stopband=167/' \ | ||
| -e 's/ro\.audio\.resampler\.psd\.halflength=.*$/ro\.audio\.resampler\.psd\.halflength=368/' \ | ||
| -e 's/ro\.audio\.resampler\.psd\.tbwcheat=.*$/ro\.audio\.resampler\.psd\.tbwcheat=106/' \ | ||
| "$MODPATH/system.prop" | ||
| sed -i \ | ||
| -e 's/ro\.audio\.resampler\.psd\.halflength=.*$/ro\.audio\.resampler\.psd\.halflength=320/' \ | ||
| "$MODPATH/system.prop-workaround" | ||
|
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||
| } | ||
|
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| function replaceSystemProps_S4() | ||
| { | ||
| if [ -e "${MODPATH%/*/*}/modules/usb-samplerate-unlocker" -o -e "${MODPATH%/*/*}/modules_update/usb-samplerate-unlocker" ]; then | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=5000/' \ | ||
| "$MODPATH/system.prop" | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=5000/' \ | ||
| "$MODPATH/system.prop-workaround" | ||
|
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| loosenedMessage | ||
|
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||
| else | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=3875/' \ | ||
| "$MODPATH/system.prop" | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=3875/' \ | ||
| "$MODPATH/system.prop-workaround" | ||
|
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||
| fi | ||
|
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| sed -i \ | ||
| -e 's/ro\.audio\.resampler\.psd\.stopband=.*$/ro\.audio\.resampler\.psd\.stopband=194/' \ | ||
| -e 's/ro\.audio\.resampler\.psd\.halflength=.*$/ro\.audio\.resampler\.psd\.halflength=520/' \ | ||
| -e 's/ro\.audio\.resampler\.psd\.tbwcheat=.*$/ro\.audio\.resampler\.psd\.cutoff_percent=100/' \ | ||
| "$MODPATH/system.prop" | ||
| sed -i \ | ||
| -e 's/ro\.audio\.resampler\.psd\.halflength=.*$/ro\.audio\.resampler\.psd\.halflength=320/' \ | ||
| "$MODPATH/system.prop-workaround" | ||
| } | ||
|
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||
| function replaceSystemProps_kona() | ||
| { | ||
| if [ ! "`getprop ro.vendor.build.version.release_or_codename`" -ge "12" -a \ | ||
| \( -e "${MODPATH%/*/*}/modules/usb-samplerate-unlocker" -o -e "${MODPATH%/*/*}/modules_update/usb-samplerate-unlocker" \) ]; then | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=20375/' \ | ||
| "$MODPATH/system.prop" | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=20375/' \ | ||
| "$MODPATH/system.prop-workaround" | ||
|
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| loosenedMessage 192kHz | ||
|
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||
| else | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2500/' \ | ||
| "$MODPATH/system.prop" | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2500/' \ | ||
| "$MODPATH/system.prop-workaround" | ||
|
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| fi | ||
| } | ||
|
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| function replaceSystemProps_SDM() | ||
| { | ||
| # Do nothing even if "usb-samplerate-unlocker" exists | ||
| : | ||
| } | ||
|
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||
| function replaceSystemProps_MTK_Dimensity() | ||
| { | ||
| if [ -e "${MODPATH%/*/*}/modules/usb-samplerate-unlocker" -o -e "${MODPATH%/*/*}/modules_update/usb-samplerate-unlocker" ]; then | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=3250/' \ | ||
| -e '$avendor.audio.usb.out.period_us=3250\nvendor.audio.usb.out.period_count=2' \ | ||
| "$MODPATH/system.prop" | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=3250/' \ | ||
| -e '$avendor.audio.usb.out.period_us=3250\nvendor.audio.usb.out.period_count=2' \ | ||
| "$MODPATH/system.prop-workaround" | ||
|
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| loosenedMessage | ||
|
|
||
| else | ||
| sed -i \ | ||
| -e '$avendor.audio.usb.out.period_us=2500\nvendor.audio.usb.out.period_count=2' \ | ||
| "$MODPATH/system.prop" | ||
| sed -i \ | ||
| -e '$avendor.audio.usb.out.period_us=2500\nvendor.audio.usb.out.period_count=2' \ | ||
| "$MODPATH/system.prop-workaround" | ||
|
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| fi | ||
|
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| } | ||
|
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| function replaceSystemProps_Others() | ||
| { | ||
| if [ -e "${MODPATH%/*/*}/modules/usb-samplerate-unlocker" -o -e "${MODPATH%/*/*}/modules_update/usb-samplerate-unlocker" ]; then | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=3250/' \ | ||
| "$MODPATH/system.prop" | ||
| sed -i \ | ||
| -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=3250/' \ | ||
| "$MODPATH/system.prop-workaround" | ||
|
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| loosenedMessage | ||
|
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||
| fi | ||
|
|
||
| } |
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