Add HW acceleration to Neko config

If a ` /dev/dri/render*` device exists, enable vaapi encoding

overlay/etc/cont-init.d/10-setup_user.sh

@@ -15,6 +15,18 @@ echo "Adding run user to video, audio, input and pulse groups"
 usermod -a -G video,audio,input,pulse ${USER}
 
 
+echo "Adding run user to render group (for HW accelerated encoding)"
+render_guid=$(stat -c "%g" /dev/dri/render* | tail -n 1)
+if [[ ! -z ${render_guid} ]]; then
+    render_group=$(getent group "${render_guid}" | cut -d: -f1)
+    if [[ -z ${render_group} ]]; then
+        groupadd -g "${render_guid}" "videorender"
+        render_group="videorender"
+    fi
+    usermod -a -G ${render_group} ${USER}
+fi
+
+
 echo "Setting umask to ${UMASK}";
 umask ${UMASK}
 

overlay/etc/cont-init.d/70-configure_neko.sh

@@ -1,16 +1,27 @@
 
 echo "**** Configure Neko ****"
+# REF: https://neko.m1k1o.net/#/getting-started/configuration
 
 if ([ "${MODE}" != "s" ] && [ "${MODE}" != "secondary" ]); then
     if [ ${WEB_UI_MODE} = "neko" ]; then
         echo "Enable Neko server"
-        sed -i 's|^autostart.*=.*$|autostart=true|' /etc/supervisor.d/neko.ini  
+        sed -i 's|^autostart.*=.*$|autostart=true|' /etc/supervisor.d/neko.ini
+        
+        # Configure nat1to1 if it is not already set
         if [[ -z ${NEKO_NAT1TO1} ]]; then
             export NEKO_NAT1TO1=$(ip route get 1 | awk '{print $(NF-2);exit}')
             echo "Setting NEKO_NAT1TO1=${NEKO_NAT1TO1}"
         else
             echo "User provided setting NEKO_NAT1TO1=${NEKO_NAT1TO1}"
         fi
+
+        # Configure hardware acceleration if it is not already set
+        if [[ -z ${NEKO_HWENC} ]]; then
+            # Enable VAAPI if device available
+            if [[ ! -z $(stat -c "%g" /dev/dri/render* | tail -n 1) ]]; then
+                export NEKO_HWENC=vaapi
+            fi
+        fi
     else
         echo "Disable Neko server"
     fi