[mythtv-users] Using mencoder by converting cutlist to mencoder's
EDL file : Please see
VJ
vijay.s.gill at gmail.com
Thu Jul 7 11:06:48 EDT 2005
Hi,
I am currently using mythtranscode + mencoder to encode my mpeg2
recordings from PVR350. I have found that using mythtranscode slows
down the encoding quite a bit. If I encode the same file using
mencoder directly it adds up 10-20(sometimes up to 30) frames per
second to the encoding speed. So I thought why not use mencoder's EDL
feature to get the effect of removing commercials (the cutlist). So I
developed following script.
Could somebody else comment on this script, whether I am doing it
right or wrong. I used it on one program and it worked fine.
If it works fine, I will be glad that I shared some knowledge with mythtv users.
Currently it is very crude (it just displays the edl entries on the
screen, but I will polish it later)
Regards from
VJ
#!/bin/bash
HOWCALLED=`basename $0`
MYSQL="mysql -u mythtv -h 10.1.0.1 mythconverg -s"
MYSQL="mysql -u root mythconverg -s"
function usage() {
echo "usage: $HOWCALLED [Myth NUV files]";
}
function frame2time() {
ms=`echo $1 \* 1000 / 25.0 | bc`
s=`echo $ms / $sdiv | bc`
ms=`echo $ms % $sdiv | bc`
echo "$s.$ms"
}
echo -e "Processing..."
for arg in $*
do
arg=`basename $arg`
cutlist=`echo "use mythconverg; select
replace(replace(coalesce(cutlist, ''),' ', ''), '\n', ' ') from
recorded where concat(chanid, '_',
DATE_FORMAT(starttime,'%Y%m%d%H%i%s'), '_',
DATE_FORMAT(endtime,'%Y%m%d%H%i%s'), '.nuv') = '$arg'" | $MYSQL`
if [ "$cutlist" == "" ]
then
s1="${s1}$title \n"
continue
fi
cutlist=`echo $cutlist`
for clip in $cutlist
do
f1=`echo $clip | cut -d "-" -f1`
if test $f1 -gt 40
then
f1=`echo $f1 - 1 | bc`
else
f1=0
fi
f2=`echo $clip | cut -d "-" -f2`
f2=`echo $f2 + 1 | bc`
t1=`frame2time $f1`
t2=`frame2time $f2`
echo "$t1 $t2 0"
done
done
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