~mdw / autoys / blame
| Commit | Line | Data |
|---|---|---|
| 583b7e4a MW |
1 | #! /bin/bash |
| 2 | ||
| 3 | set -e | |
| 4 | ||
| 5 | ###-------------------------------------------------------------------------- | |
| 6 | ### Table of contents representation. | |
| 7 | ### | |
| 8 | ### We need a simple table of contents representation. A toc file consists | |
| 9 | ### of a number of records, one per line; each record is a number of | |
| 10 | ### blank-delimited fields. Fields don't contain whitespace, so no quoting | |
| 11 | ### is needed. The first field of each record is a type which explains how | |
| 12 | ### to decode the rest. | |
| 13 | ### | |
| 14 | ### `T' START Audio track starts at START frames. | |
| 15 | ### | |
| 16 | ### `D' START Data track, starts at START frames. | |
| 17 | ### | |
| 18 | ### `E' END Leadout at END frames. | |
| 19 | ||
| 20 | ###-------------------------------------------------------------------------- | |
| 21 | ### Command line options. | |
| 22 | ||
| 23 | hidden=0 | |
| 24 | data=none | |
| 25 | while getopts "d:h:" opt; do | |
| 26 | case "$opt" in | |
| 27 | h) hidden=$OPTARG ;; | |
| 28 | d) data=$OPTARG ;; | |
| 29 | *) exit 1 ;; | |
| 30 | esac | |
| 31 | done | |
| 32 | shift $((OPTIND - 1)) | |
| 33 | ||
| 34 | case "$#" in | |
| 35 | 1) ;; | |
| 36 | *) echo >&2 "Usage: $0 [-d DATA] [-h HIDDEN] DIR|CD-DEVICE"; exit 1 ;; | |
| 37 | esac | |
| 38 | source=$1 | |
| 39 | ||
| 40 | ###-------------------------------------------------------------------------- | |
| 41 | ### Work out what to do. | |
| 42 | ||
| 43 | if [ -d "$source" ]; then | |
| 44 | ||
| 45 | ## Intuit what's going on from a directory full of FLAC files. | |
| 46 | cd "$source" | |
| 47 | for i in [0-9][0-9][-.\ ]*.flac; do | |
| 48 | metaflac --show-total-samples "$i" | |
| 49 | done | { | |
| 50 | tn=1 tot=$hidden | |
| 51 | while read samples; do | |
| 52 | frames=$((samples/588)) | |
| 53 | echo "T $tot" | |
| 54 | tot=$((tot + frames)) | |
| 55 | done | |
| 56 | case "$data" in | |
| 57 | none) | |
| 58 | ;; | |
| 59 | *) | |
| 60 | tot=$((tot + 11400)) | |
| 61 | echo "D $tot" | |
| 62 | tot=$((tot + data)) | |
| 63 | ;; | |
| 64 | esac | |
| 65 | echo "E $tot" | |
| 66 | } | |
| 67 | ||
| 68 | elif [ -b "$source" ]; then | |
| 69 | ||
| 70 | ## Read a table of contents from a CD. | |
| 71 | wodim dev="$source" -toc | sed ' | |
| 72 | /^track:/ !d | |
| 73 | s/^track:\(.*\) lba: *\([0-9][0-9]*\) (.*mode: *\([-0-9][0-9]*\) *$/\1 \3 \2/ | |
| 74 | ' | while read track mode offset; do | |
| 75 | case "$track,$mode" in | |
| 76 | lout,-1) echo "E $offset" ;; | |
| 77 | *,0 | *,-1) echo "T $offset" ;; | |
| 78 | *,1 | *,2) echo "D $offset" ;; | |
| 79 | esac | |
| 80 | done | |
| 81 | ||
| 82 | else | |
| 83 | echo >&2 "$0: don't know how to read a toc from $source" | |
| 84 | fi |