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#!/bin/sh
# remove commercials from recording
# version 0.1
# usage:
# first parameter must be %DIR% of the recording
# second parameter must be %FILE% of the recording
# third parameter must be %CHANID%
# fourth parameter must be %STARTTIME%
# fifth parameter must be %JOBID% for the User Job status to be updated in MythTV
# in the mythtv setup screen invoke this script like this:
# MYTHTV User Job Command:
# /usr/LH/bin/removecommercials "%DIR%" "%FILE%" "%CHANID%" "%STARTTIME%" "%JOBID%"
# Auguments passed from command line
VIDEODIR=$1
FILENAME=$2
CHANID=$3
STARTTIME=$4
JOBID=$5
# database settings
BACKEND_HOSTNAME=${BACKEND_HOSTNAME:-"localhost"}
DBUSERNAME=${DBUSERNAME:-"mythtv"}
DBPASSWORD=${DBPASSWORD:-"mythtv"}
SQLCMD="mysql -u $DBUSERNAME --password=$DBPASSWORD -h $BACKEND_HOSTNAME mythconverg -e"
#------FUNCTIONS---------------
update_comment()
# Arg_1 = COMMENT
{
if [ $NO_JOBID = 0 ]; then
`$SQLCMD "update jobqueue set comment=\"$1\" where id=\"$JOBID\";"`
fi
}
update_status()
# Arg_1 = status code
{
if [ $NO_JOBID = 0 ]; then
`$SQLCMD "update jobqueue set status=\"$1\" where id=\"$JOBID\";"`
fi
}
check_myth_jobcmds()
# check the myth database for stop pause or resume commands
{
if [ $NO_JOBID = 0 ]; then
CURRENT_CMD=`$SQLCMD "select cmds from jobqueue where id=\"$JOBID\";" | sed '/[0-9]/!d'`
case "$CURRENT_CMD" in
# JOB_RUN
0) ;;
# JOB_PAUSE
1) update_status 6
kill -s STOP $TPID ;;
# JOB_RESUME
2) update_status 4
`$SQLCMD "update jobqueue set cmds=\"0\" where id=\"$JOBID\";"`
kill -s CONT $TPID ;;
# JOB_STOP
4) update_status 5
`$SQLCMD "update jobqueue set cmds=\"0\" where id=\"$JOBID\";"`
kill -9 $TPID
clean_up_files
echo "Cancelled"
update_status 320
exit ;;
esac
fi
}
check_background_progress()
#check progress in background
{
while [ `tail -1 $STATUSFILE | grep -c "Done"` = 0 ]
do
sleep 5
check_myth_jobcmds
current_status=`tail -1 $STATUSFILE`
if [ `expr match "$current_status" '.*\complete'` -ne 0 ]; then
prog_percent=`echo "$current_status" | awk '{print $3}'`
if [ -n "$prog_percent" ]; then
echo "Removing Commercials - $prog_percent Completed"
update_comment "Removing Commercials - $prog_percent Completed"
fi
fi
done
}
get_pid()
{
process_name=""
i1=1
while [ "$process_name" != "found" ]; do
if [ "`ps $TPID | grep mythtranscode | sed 's_.*\(mythtranscode\).*_\1_'`" = "mythtranscode" ]; then
process_name="found"
else
TPID=`expr $TPID + 1`
fi
i1=`expr $i1 + 1`
if [ $i1 -gt 20 ]; then
break
fi
done
}
clean_up_files()
# clean up left over files
{
unlink $TMPFILE 2> /dev/null
unlink $TMPFILE.map 2> /dev/null
unlink $STATUSFILE 2> /dev/null
unlink $VIDEODIR/$FILENAME.tmp 2> /dev/null
}
#-------MAIN SCRIPT------------
# check if %JOBID% is passed from command line
JOBID=$5
if [ -z "$JOBID" ]; then
NO_JOBID=1
else
NO_JOBID=0
fi
# check if file is a .mpg
if [ `expr match "$FILENAME" '.*\.mpg'` -ne 0 ]; then
MPEG="--mpeg2"
else
MPEG=""
fi
# create temp filename so multiple instances won't conflict
TMPNAME=rmvCOMMS-$$
TMPFILE=$VIDEODIR/$FILENAME-$$
STATUSFILE=/myth/tmp/$TMPNAME-status.log
touch $STATUSFILE
update_status 4
check_myth_jobcmds
# check for cutlist
MYTHCOMMFRAMES=`mythcommflag --getcutlist -f $VIDEODIR/$FILENAME | grep 'Cutlist:' | cut -d \ -f 2`
if [ -n "$MYTHCOMMFRAMES" ]; then
echo "Extracting cutlist..."
update_comment "Removing Commercials..."
( /usr/bin/nice -n19 /usr/bin/mythtranscode -c $CHANID -s $STARTTIME -o $TMPFILE $MPEG --honorcutlist --showprogress > $STATUSFILE 2>&1 ; echo "Done" >> $STATUSFILE ) &
TPID=$!
get_pid
check_background_progress
ERROR=$?
if [ $ERROR -ne 0 ]; then
echo "Transcoding failed for ${FILENAME} with error $ERROR"
exit $ERROR
fi
check_myth_jobcmds
# move temp file to output location
echo "Moving file..."
update_comment "Moving file..."
if [ `$SQLCMD "select data from settings where value='SaveTranscoding';" | sed '/[0-9]/!d'` = 1 ]; then
echo "DB is set to save transcodeing"
mv $VIDEODIR/$FILENAME $VIDEODIR/$FILENAME.old
fi
mv $TMPFILE $VIDEODIR/$FILENAME
# file has changed, rebuild index
echo "Rebuilding index..."
update_comment "Rebuilding index..."
mythcommflag -c $CHANID -s $STARTTIME --rebuild
ERROR=$?
if [ $ERROR -ne 0 ]; then
echo "Rebuilding seek list failed for ${FILENAME} with error $ERROR"
exit $ERROR
fi
# remove old cutlist
echo "Removing old cutlist..."
update_comment "Removing old cutlist..."
mythcommflag -c $CHANID -s $STARTTIME --clearcutlist
ERROR=$?
if [ $ERROR -eq 0 ]; then
# Fix the database entry for the file
`$SQLCMD UPDATE recorded SET cutlist = 0, filesize = $(ls -l $VIDEODIR/$FILENAME | awk '{print $5}') WHERE basename = '$FILENAME';` > /dev/null
else
echo "Clearing cutlist failed for ${FILENAME} with error $ERROR"
exit $ERROR
fi
clean_up_files
echo "Commercials Removed"
update_status 272
update_comment "Sucessfully Completed."
else
echo "No cutlist found."
fi
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