code.delx.au - transcoding/blob - identify-disc-mpv

   1 #!/bin/bash -e
   2
   3 if [ -z "$1" -o -z "$2" ]; then
   4     echo "Usage: $0 --bluray-device|--dvd-device SOMEDIRECTORY"
   5     exit 1
   6 fi
   7
   8 device_param="$1"
   9 device_path="$2"
  10 if [ "$device_param" = "--bluray-device" ]; then
  11     device_scheme="bd"
  12 elif [ "$device_param" = "--dvd-device" ]; then
  13     device_scheme="dvd"
  14 else
  15     echo "Unknown device type: $device_param"
  16     exit 1
  17 fi
  18
  19 function mpv_wrap {
  20     mpv 2> /dev/null \
  21         --quiet \
  22         --ao=null \
  23         --vo=null \
  24         --frames 1 \
  25         --no-cache \
  26         --no-config \
  27         "$@"
  28 }
  29
  30 function get_highest_title {
  31     mpv_wrap \
  32         "$device_param" "$device_path" "${device_scheme}://" \
  33         --term-playing-msg='${disc-title-list}TITLE_LIST_END' \
  34     | grep -B2 'TITLE_LIST_END' \
  35     | head -n1 \
  36     | cut -d':' -f1
  37 }
  38
  39 function get_length {
  40     mpv_wrap \
  41         "$device_param" "$device_path" "${device_scheme}://${1}" \
  42         --term-playing-msg='TITLE_LENGTH=${duration}' \
  43     | grep 'TITLE_LENGTH' \
  44     | head -n1 \
  45     | cut -d'=' -f2
  46 }
  47
  48 highest_title="$(get_highest_title)"
  49 for title in $(seq 0 "$highest_title"); do
  50     echo -n "$title "
  51     get_length "$title"
  52 done
  53