TODO

1. alsa.conf

   $ sudo sed -i 's/#$//g' /usr/share/alsa/alsa.conf.{min,mix,plug}
   $ #sudo sed -i '0,/^pcm/s/^pcm/!pcm/' /usr/share/alsa/alsa.conf.{min,mix,plug}

2. /etc/rc.local

   echo 55698 > /sys/devices/system/cpu/cpufreq/ondemand/sampling_rate || true
   echo 4899051 > /sys/kernel/debug/sched/migration_cost_ns || true

3. sysctl.conf

   net.ipv4.tcp_rmem = 4637 88319 3345789
   net.ipv4.tcp_wmem = 4589 89970 3455761
   vm.max_map_count = 672161

4. No asserts for alsa & mpd

   ./configure ... --disable-debug --with-debug=no
   meson ... -Db_ndebug=true

5. mpd.conf

   audio_output {
   device "hw"
   }
   input_cache {
   #size "465 MB"
   size "487453266"
   }
   database {
   plugin "simple"
   path "/var/lib/mpd/database"
   }
   #mixer_type "none"

   $ sudo sed -i '/^#/d' /etc/mpd.conf

6. ap2renderer

   Preload buffer     [108794]
   ALSA Period frames [3744]
   ALSA Buffer frames [14949]

7. mpv.conf

   demuxer-max-bytes=80226785
   no-icc-cache
   no-gpu-shader-cache

   $ sudo sed -i '/^#/d' .config/mpv/mpv.conf

8. rc.local

### usb mount
if [ "$usbmount" = on ]; then
 blkid | while read line; do
   uuid=$(echo $line | grep -io uuid.* | cut -d\" -f2)
  drive=$(echo $line | cut -d: -f1)
  if [ -n "$uuid" ] && ! grep -q $uuid /etc/fstab && ! mount | grep -q "$drive"; then
   type=$(echo $line | grep -o TYPE.* | cut -d\" -f2)
   case $type in
    vfat) opt="ro,codepage=949,iocharset=utf8" ;;
    ntfs) opt="ro,umask=022" ;;
    *)    opt="ro" ;;
   esac
   [ -d "/mnt/$uuid" ] || sudo mkdir -p "/mnt/$uuid"
   sudo mount -o "$opt" "$drive" "/mnt/$uuid"
  fi
 done
fi

9. kr2mpd

   cbs)   pls "https://m-aac.cbs.co.kr/mweb_cbs939/_definst_/cbs939.stream/playlist.m3u8" ;;