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PostPosted: Fri Feb 24, 2012 9:36 am 
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Joined: Tue Aug 08, 2006 7:08 pm
Posts: 557
Location: UK
I'm trying to update my script to fix the Mythtranscode 232 error to be used within myth from the transcode menu, using the framework of the removecommercials script. It seems to work pretty well, but there seems to be a logic error in original removecommercials script, where after going through the loop of waiting for the initial cutting of the file, it would print "done" to the log file, doing a couple of other ops and then checking for an error from the previous command, but this would have been no good looking for a fail in the commercial cut.
For my script, what I need to do to is check the logfile for a fatal error for ffmpeg, but unfortunately I do not have an example of the output text, as the only time this happened, the logfile was still being deleted, and I was left with part of a TV programme that had been processed through the reindexing step..
Could anyone who has an example please post it here.

Regards.
Bruce S.

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PostPosted: Mon Jun 18, 2012 5:37 am 
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Joined: Tue Aug 08, 2006 7:08 pm
Posts: 557
Location: UK
For those who are interested :

Code:
#!/bin/sh
# Fix Mythtranscode 232 errors
# Largely based on removecommercials
# 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/myth_fix232 "%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 $FPID ;;
   # JOB_RESUME
   2) update_status 4
       `$SQLCMD "update jobqueue set cmds=\"0\" where id=\"$JOBID\";"`
       kill -s CONT $FPID ;;
   # JOB_STOP
   4) update_status 5
      `$SQLCMD "update jobqueue set cmds=\"0\" where id=\"$JOBID\";"`
      kill -9 $FPID
       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 $FPID | grep ffmpeg | sed 's_.*\(ffmpeg\).*_\1_'`" = "ffmpeg" ]; then
      process_name="found"
   else
      FPID=`expr $FPID + 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-$$
TMPFILE=$VIDEODIR/$FILENAME-$$.mpg
STATUSFILE=/myth/tmp/$TMPNAME-status.log

touch $STATUSFILE

update_status 4

check_myth_jobcmds

# check for cutlist
    echo "Remuxing File..."
    update_comment "Remuxing File"
    ( /usr/bin/nice -n19  ffmpeg -i $VIDEODIR/$FILENAME -acodec copy -vcodec copy "$TMPFILE" > $STATUSFILE 2>&1 ; echo "Done" >> $STATUSFILE ) &
    FPID=$!
    get_pid
    check_background_progress
    ERROR=$?
    if [ $ERROR -ne 0 ]; then
        echo "Remuxing 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..."
    mythtranscode $MPEG --buildindex --allkeys --showprogress --chanid $CHANID --starttime $STARTTIME
    ERROR=$?
    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 "Error 232 Fixed"
    update_status 272
    update_comment "Sucessfully Completed."





Regards Bruce S.

_________________
Updated 2019/01/31: AthlonII X2 265 Asus M5A78L-M LE
2Gb PC 1333 DDR3, 1TB+2TB SATA HDD,
SATA DVD-RW TSSTcorp SH-224DB , Onboard Radion HD3000
Hauppauage Nova-T 500, Nova-T LinHes R7.1


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