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