#317 Add support for -S and -G (#320)

Dockerfile

@@ -105,6 +105,9 @@ ENV SQUEEZELITE_LOG_CATEGORY_DECODE ""
 ENV SQUEEZELITE_LOG_CATEGORY_OUTPUT ""
 ENV SQUEEZELITE_LOG_CATEGORY_IR ""
 
+ENV SQUEEZELITE_POWER_SCRIPT=""
+ENV SQUEEZELITE_RPI_GPIO=""
+
 ENV DISPLAY_PRESETS ""
 
 ENV PUID ""

README.md

@@ -116,6 +116,8 @@ SQUEEZELITE_UNMUTE|-U|From squeezelite's man page for `-U`: Unmute the given ALS
 SQUEEZELITE_LINEAR_VOLUME|-X|Set to `Y` to enable. From squeezelite's man page for `-X`: Use linear volume adjustments instead of in terms of dB (only for hardware volume control).
 SQUEEZELITE_VISUALIZER|-v|Set to `Y` to enable. Unfortunately this feature does not really work from inside docker (yet?). From squeezelite's man page for `-v`: Enable visualiser support.  This creates a shared memory segment that contains some of the audio being played, so that an external visualiser can read and process this to create visualisations.
 SQUEEZELITE_READ_FORMATS_FROM_HEADER|-W|Set to `Y` to read wave and aiff format from header, ignoring server parameters
+SQUEEZELITE_POWER_SCRIPT|-S|Absolute path to script to launch on power commands from LMS. This cannot be used in combination with the SQUEEZELITE_RPI_GPIO variable
+SQUEEZELITE_RPI_GPIO|-G|Specify the BCM GPIO# to use for Amp Power Relay and if the output should be Active High or Low. This cannot be used in combination with SQUEEZELITE_POWER_SCRIPT
 SELECT_CUSTOM_BINARY_ALSA||Use for selection of a custom binary for ALSA mode
 SELECT_CUSTOM_BINARY_PULSE||Use for selection of a custom binary for PULSE mode
 SQUEEZELITE_LOG_CATEGORY_ALL|-d|Support for log level on category `all`

app/bin/cmd-line-builder.sh

@@ -152,6 +152,36 @@ function cmdline-rates() {
     fi
 }
 
+function cmdline-power-script() {
+    if [ -z "${SQUEEZELITE_POWER_SCRIPT}" ]; then
+        echo "Variable SQUEEZELITE_POWER_SCRIPT not specified"
+    else
+        # cannot combine with SQUEEZELITE_RPI_GPIO
+        if [ -n "${SQUEEZELITE_RPI_GPIO}" ]; then
+            echo "Cannot use SQUEEZELITE_POWER_SCRIPT along with SQUEEZELITE_RPI_GPIO"
+            exit 1
+        else
+            echo "Variable SQUEEZELITE_POWER_SCRIPT specified: ${SQUEEZELITE_POWER_SCRIPT}"
+            CMD_LINE="$CMD_LINE -S "$(quote_if_needed "${SQUEEZELITE_POWER_SCRIPT}")
+        fi
+    fi
+}
+
+function cmdline-rpi-gpio() {
+    if [ -z "${SQUEEZELITE_RPI_GPIO}" ]; then
+        echo "Variable SQUEEZELITE_RPI_GPIO not specified"
+    else
+        # cannot combine with SQUEEZELITE_RPI_GPIO
+        if [ -n "${SQUEEZELITE_POWER_SCRIPT}" ]; then
+            echo "Cannot use SQUEEZELITE_RPI_GPIO along with SQUEEZELITE_POWER_SCRIPT"
+            exit 1
+        else
+            echo "Variable SQUEEZELITE_RPI_GPIO specified: ${SQUEEZELITE_RPI_GPIO}"
+            CMD_LINE="$CMD_LINE -G "$(quote_if_needed "${SQUEEZELITE_RPI_GPIO}")
+        fi
+    fi
+}
+
 function handle_mac_address() {
     mac_gen_disabled=0
     if [[ "${DISABLE_MAC_ADDRESS_GENERATION^^}" == "YES" ]] || [[ "${DISABLE_MAC_ADDRESS_GENERATION^^}" == "Y" ]]; then

app/bin/run-squeezelite-alsa.sh

@@ -178,6 +178,8 @@ cmdline-linear-volume
 cmdline-codecs
 cmdline-exclude-codecs
 cmdline-rates
+cmdline-power-script
+cmdline-rpi-gpio
 
 if [ -z "${SQUEEZELITE_PRIORITY}" ]; then
   echo "Variable SQUEEZELITE_PRIORITY has not been specified";

app/bin/run-squeezelite-pulse.sh

@@ -97,6 +97,8 @@ cmdline-timeout
 cmdline-audio-device
 cmdline-params
 cmdline-codecs
+cmdline-power-script
+cmdline-rpi-gpio
 
 if [ -z "${SQUEEZELITE_RATES}" ]; then
   # default to 44.1kHz
@@ -114,6 +116,9 @@ source logging.sh
 
 add_log_categories
 
+cmdline-power-script
+cmdline-rpi-gpio
+
 handle_mac_address
 cmdline_mac_address
 

doc/release.md

@@ -10,6 +10,7 @@ Older build might be dropped in order to save space on docker-hub and incur in l
 
 Date|Type|Description
 :---|:---|:---
+2024-11-25|Improvement|Add support for -S and -G (see [#317](https://github.com/GioF71/squeezelite-docker/discussions/317))
 2024-09-21|Improvement|Use exec instead of eval, avoid bash process
 2024-06-01|Update|Sourceforge binaries version bump (see [#313](https://github.com/GioF71/squeezelite-docker/issues/313))
 2024-06-01|Update|Sourceforge binaries version bump (see [#311](https://github.com/GioF71/squeezelite-docker/issues/311))