Hello,
how do I get the duration in a shell script? The following code does not always compute the correct value:
sumlen=0 for i in "$recdir"/0*.vdr ; do # length in sec. in ID_LENGTH ergebnis=$(/usr/local/bin/midentify "$i") eval $ergebnis sumlen=$(echo "scale=3 ; $sumlen + $ID_LENGTH" | bc) done echo $sumlen
(midentify is mplayer -vo null -ao null -frames 0 -identify "$@")
Can you tell me a correct way?
Thank you,
Dirk
Moin,
how do I get the duration in a shell script? The following code does not always compute the correct value
According to the record-length-patch you can use the size of index.vdr. Divide the size of index.vdr by 200 and you get the run time in seconds. Each entry in index.vdr is 8 bytes long (at least on my pc) and there is AFAICS one entry per frame. With 25 frames per seconds you got that divider.
So sth like echo "$(stat -c %s index.vdr) / 200.0" | bc would help you on a bash.
Gruss, Walter
-
Dirk -
Walter Koch