sound/shairport-sync/files/shairport-sync.init

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2015-2016 OpenWrt.org
   3
   4 START=99
   5 USE_PROCD=1
   6
   7 append_num() {
   8         local cfg="$1"
   9         local var="$2"
  10         local opt="$3"
  11         local def="$4"
  12         local val
  13
  14         config_get val "$cfg" "$var"
  15         if [ -n "$val" ] || [ -n "$def" ]; then
  16                 printf "\t%s = ${val:-$def};\n" "$opt"
  17         fi
  18 }
  19
  20 append_str() {
  21         local cfg="$1"
  22         local var="$2"
  23         local opt="$3"
  24         local def="$4"
  25         local val
  26
  27         config_get val "$cfg" "$var"
  28         if [ -n "$val" ] || [ -n "$def" ]; then
  29                 printf "\t%s = \"${val:-$def}\";\n" "$opt"
  30         fi
  31 }
  32
  33 start_instance() {
  34         local cfg=$1
  35         local conf_custom conf_file aux
  36
  37         config_get_bool aux "$cfg" 'enabled' '0'
  38         [ "$aux" = 0 ] && return 1
  39
  40         config_get_bool conf_custom "$cfg" 'conf_custom' '0'
  41         config_get conf_file "$cfg" "conf_file"
  42         [ "$conf_custom" -ne 1 ] && [ -z "$conf_file" ] && {
  43                 mkdir -p /var/etc
  44                 conf_file="/var/etc/shairport-sync-${cfg}.conf"
  45         } && {
  46                 printf "// Automatically generated from UCI config\n\n"
  47
  48                 # General
  49                 printf "general =\n"
  50                 printf "{\n"
  51                 append_str "$cfg" name "name"
  52                 append_str "$cfg" password "password"
  53                 append_str "$cfg" interpolation "interpolation"
  54                 append_str "$cfg" output_backend "output_backend"
  55                 append_str "$cfg" mdns_backend "mdns_backend"
  56                 append_num "$cfg" port "port"
  57                 append_num "$cfg" udp_port_base "udp_port_base"
  58                 append_num "$cfg" udp_port_range "udp_port_range"
  59                 append_str "$cfg" statistics "statistics"
  60                 append_num "$cfg" drift "drift"
  61                 append_num "$cfg" resync_threshold "resync_threshold"
  62                 append_num "$cfg" log_verbosity "log_verbosity"
  63                 append_str "$cfg" ignore_volume_control "ignore_volume_control"
  64                 append_num "$cfg" volume_range_db "volume_range_db"
  65                 append_str "$cfg" regtype "regtype"
  66                 append_str "$cfg" playback_mode "playback_mode"
  67                 printf "};\n\n"
  68
  69                 # Metadata
  70                 printf "metadata =\n"
  71                 printf "{\n"
  72                 append_str "$cfg" metadata_enabled "enabled"
  73                 append_str "$cfg" metadata_cover_art "include_cover_art"
  74                 append_str "$cfg" metadata_pipe_name "pipe_name"
  75                 append_num "$cfg" metadata_pipe_timeout "pipe_timeout"
  76                 append_str "$cfg" metadata_socket_address "socket_address"
  77                 append_num "$cfg" metadata_socket_port "socket_port"
  78                 append_num "$cfg" metadata_socket_msglength "socket_msglength"
  79                 printf "};\n\n"
  80
  81                 # Session control
  82                 printf "sessioncontrol =\n"
  83                 printf "{\n"
  84                 append_str "$cfg" sesctl_run_before_play_begins "run_this_before_play_begins"
  85                 append_str "$cfg" sesctl_run_after_play_ends "run_this_after_play_ends"
  86                 append_str "$cfg" sesctl_wait_for_completion "wait_for_completion"
  87                 append_str "$cfg" sesctl_session_interruption "allow_session_interruption"
  88                 append_num "$cfg" sesctl_session_timeout "session_timeout"
  89                 printf "};\n\n"
  90
  91                 # Alsa audio back end
  92                 printf "alsa =\n"
  93                 printf "{\n"
  94                 append_str "$cfg" alsa_output_device "output_device"
  95                 append_str "$cfg" alsa_mixer_control_name "mixer_control_name"
  96                 append_str "$cfg" alsa_mixer_device "mixer_device"
  97                 append_num "$cfg" alsa_latency_offset "audio_backend_latency_offset"
  98                 append_num "$cfg" alsa_buffer_length "audio_backend_buffer_desired_length"
  99                 append_str "$cfg" alsa_disable_synchronization "disable_synchronization"
 100                 append_num "$cfg" alsa_period_size "period_size"
 101                 append_num "$cfg" alsa_buffer_size "buffer_size"
 102                 printf "};\n\n"
 103
 104                 # Pipe audio back end
 105                 printf "pipe =\n"
 106                 printf "{\n"
 107                 append_str "$cfg" pipe_name "name"
 108                 append_num "$cfg" pipe_latency_offset "audio_backend_latency_offset"
 109                 append_num "$cfg" pipe_buffer_length "audio_backend_buffer_desired_length"
 110                 printf "};\n\n"
 111
 112                 # Stdout audio back end
 113                 printf "stdout =\n"
 114                 printf "{\n"
 115                 append_num "$cfg" stdout_latency_offset "audio_backend_latency_offset"
 116                 append_num "$cfg" stdout_buffer_length "audio_backend_buffer_desired_length"
 117                 printf "};\n\n"
 118
 119                 # AO audio back end
 120                 printf "ao =\n"
 121                 printf "{\n"
 122                 append_num "$cfg" ao_latency_offset "audio_backend_latency_offset"
 123                 append_num "$cfg" ao_buffer_length "audio_backend_buffer_desired_length"
 124                 printf "};\n\n"
 125         } > "$conf_file"
 126
 127         procd_open_instance
 128
 129         procd_set_param command /usr/bin/shairport-sync
 130         procd_append_param command -c "$conf_file"
 131
 132         config_get_bool aux "$cfg" 'respawn' '0'
 133         [ "$aux" = 1 ] && procd_set_param respawn
 134
 135         procd_close_instance
 136 }
 137
 138 service_triggers() {
 139         procd_add_reload_trigger "shairport-sync"
 140 }
 141
 142 start_service() {
 143         config_load shairport-sync
 144         config_foreach start_instance shairport-sync
 145 }