media-sucker/scripts/dvd.video.read.sh

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#! /bin/sh -e
. $(dirname $0)/common.sh
log "Scanning for DVD title"
title=$(dvdbackup -I | awk -F \" '/DVD with title/ {print $2}')
setenv title "$title"
# How big is this DVD?
totalSize=$(dvdbackup -I | awk '/[MK]iB$/ { b += $2 } END { print b }')
dvdbackup -p -F -n DVD \
| tr '\r' '\n' \
| awk -v total=$totalSize -F '[ /:()]+' '
function update(bytes) {
pct = 100 * bytes / total
if (pct >= nextpct) {
print pct
fflush()
nextpct = pct + 0.5
}
}
/[MK]iB.$/ {
read = $(NF-3) * 1024
if ($(NF-1) == "MiB") {
read *= 1024
}
if (read < last) {
totalRead += last
}
update(totalRead + read)
last = read
}
' \
| while read val; do
setenv complete "$val"
echo "Complete: $val"
done