Commit | Line | Data |
---|---|---|
583b7e4a MW |
1 | #! /bin/bash |
2 | ||
3 | set -e | |
4 | : ${JBDIR=/mnt/jb} | |
5 | ||
6 | i0=0 zero_start=0 trim_end=0 span=$((588*5 - 1)) debug="" | |
7 | while getopts flF:L:i:b:a:s:d opt; do | |
8 | case "$opt" in | |
9 | f) zero_start=$((588*5 - 1)) ;; | |
10 | l) trim_end=$((588*5)) ;; | |
11 | F) zero_start=$OPTARG ;; | |
12 | L) trim_end=$OPTARG ;; | |
13 | b) before=$OPTARG ;; | |
14 | a) after=$OPTARG ;; | |
15 | s) span=$OPTARG ;; | |
16 | d) debug=-d ;; | |
17 | *) exit 1 ;; | |
18 | esac | |
19 | done | |
20 | shift $((OPTIND - 1)) | |
21 | ||
22 | case $# in | |
23 | 0 | 1) | |
24 | echo >&2 "usage: $0 [-OPTIONS] FILE TARGET..." | |
25 | exit 1 | |
26 | ;; | |
27 | esac | |
28 | file=$1; shift | |
29 | ||
30 | ns=$(metaflac --show-total-samples "$file") | |
31 | ||
32 | read ck tot < <( | |
33 | { | |
34 | if [ "${before+set}" ]; then | |
35 | n=$(metaflac --show-total-samples "$before") | |
36 | flac -d -s -o- --force-raw-format --sign=signed --endian=little \ | |
37 | --skip=$((n - span)) \ | |
38 | "$before" | |
39 | else | |
40 | $JBDIR/bin/cat-prefix $((4 * span)) </dev/zero | |
41 | fi | |
42 | ||
43 | flac -d -s -o- --force-raw-format --sign=signed --endian=little \ | |
44 | --until=$((ns - span - trim_end)) \ | |
45 | "$file" | |
46 | } | { | |
47 | if ((zero_start > 0)); then | |
48 | $JBDIR/bin/cat-prefix $((4 * zero_start)) </dev/zero | |
49 | $JBDIR/bin/cat-prefix $((4 * zero_start)) >/dev/null | |
50 | fi | |
51 | cat | |
52 | } | $JBDIR/bin/flaccrip-compute -r | |
53 | ) | |
54 | ||
55 | while read off ck; do | |
56 | echo M $((off - span)) "$ck" | |
57 | done < <( | |
58 | $JBDIR/bin/flaccrip-slide \ | |
59 | -i "$zero_start" $debug \ | |
60 | $((ns - trim_end)) $ck $tot \ | |
61 | <( | |
62 | if ((span > zero_start)); then | |
63 | tail=$((span - zero_start)) | |
64 | if [ "${before+set}" ]; then | |
65 | n=$(metaflac --show-total-samples "$before") | |
66 | flac -d -s -o- --force-raw-format --sign=signed --endian=little \ | |
67 | --skip=$((n - tail)) \ | |
68 | "$before" | |
69 | else | |
70 | $JBDIR/bin/cat-prefix $((4 * tail)) </dev/zero | |
71 | fi | |
72 | fi | |
73 | flac -d -s -o- --force-raw-format --sign=signed --endian=little \ | |
74 | --until=$((span + zero_start)) \ | |
75 | "$file" | |
76 | ) \ | |
77 | <( | |
78 | if ((span > trim_end)); then | |
79 | flac -d -s -o- --force-raw-format --sign=signed --endian=little \ | |
80 | --skip=$((ns - span - trim_end)) \ | |
81 | "$file" | |
82 | head=$((span - trim_end)) | |
83 | if [ "${after+set}" ]; then | |
84 | flac -d -s -o- --force-raw-format --sign=signed --endian=little \ | |
85 | --until=$head \ | |
86 | "$after" | |
87 | else | |
88 | $JBDIR/bin/cat-prefix $((4 * head)) </dev/zero | |
89 | fi | |
90 | else | |
91 | flac -d -s -o- --force-raw-format --sign=signed --endian=little \ | |
92 | --skip=$((ns - span - trim_end)) \ | |
93 | --until=$((ns + span - trim_end)) \ | |
94 | "$file" | |
95 | fi | |
96 | ) \ | |
97 | "$@" | |
98 | ) |