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helper_scripts [2013/06/28 17:53] – beandoghelper_scripts [2018/03/28 05:54] (current) – beandog
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 ====== Helper Scripts ====== ====== Helper Scripts ======
 +
 +This is an archive of old stuff. Some things I wrote into [[dvd_info]].
  
 This is just a collection of little scripts. This is just a collection of little scripts.
  
 +=== avi2mpg ===
 +
 +<code bash>
 +#!/bin/bash
 +F=`basename $1 .avi`
 +MPG=${F}.mpg
 +if [[ ! -f ${MPG} ]]; then
 + mencoder $1 -o $MPG -profile dvd
 + fi
 +</code>
 +
 +=== close_trays ===
 +
 +<code bash>
 +#!/bin/bash
 +eject -t /dev/dvd
 +eject -t /dev/dvd1
 +</code>
 +
 +=== confcat ===
 +
 +Strip all empty strings and commented strings
 +
 +<code>
 +#!/bin/bash
 +grep -vh '^#' "$@" | grep -v '^$'
 +</code>
  
 === dumpchapters === === dumpchapters ===
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 #!/bin/sh #!/bin/sh
 mplayer dvd://${1} -dumpstream -dumpfile movie.vob mplayer dvd://${1} -dumpstream -dumpfile movie.vob
 +</code>
 +
 +=== dvd_id ===
 +
 +Once you pop in a DVD, it takes a few seconds to initialize and be able to read, even though the device shows as available.
 +
 +This helper script just waits patiently until it can correctly read the DVD.
 +
 +It calls the binary [[disc_id]] which you'll need installed first.
 +
 +<code bash>
 +#!/bin/bash
 +EXIT_CODE=1
 +DEVICE=$1
 +if [[ -z $DEVICE ]]; then
 + DEVICE=/dev/dvd
 +fi
 +
 +if [[ ! -b $DEVICE ]]; then
 + echo "Device $DEVICE doesn't exist" >&2
 + exit 1
 +fi
 +
 +while [[ $EXIT_CODE != 0 ]]; do
 + /usr/local/bin/disc_id $DEVICE 2> /dev/null
 + EXIT_CODE=$?
 +
 + if [[ $EXIT_CODE != 0 ]]; then
 + sleep 1
 + fi
 +done
 </code> </code>

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