DBaldock9
Headphoneus Supremus
I've never created CUE Sheets, but I have used exiftool in a bash script, to read the meta-data in FLAC files, and create M3U Playlists.
The exiftool arguments I use to get the track time is - exiftool -s3 -Duration
NOTE: This was written on a Windows 7 PC, and run within the cygwin environment. I don't think I've tried running it directly, after switching back to Linux.
Bash:
#!/bin/bash
###########################################
# NAME: create-playlist-1.sh
# AUTHOR: David Baldock
# DATE CREATED: 01-JUL-17
# DATE MODIFIED: -
# DESCRIPTION: A script to create a M3U playlist file.
#
# Run it from within the Playlist folder,
#+ in this folder structure -
#+ Music/
#+ Music/Playlists/[PlaylistFileName.m3u]
#+ Music/[genre]/[artist]/[album]/[tracks]
#+
#+ - using input from this command -
#+ find -O2 ../[genre]/[artist]/ -name "*.flac" | sort | create-playlist-1.sh >
#+ [PlaylistFileName.m3u]
#
# The output is a file containing two lines for each track -
#+ #EXTINF:[TrackTotalSeconds],[ArtistName] - [SongTitle]
#+ [TrackName]
#
# The following sort command can be used to combine files from
#+ multiple different folder structures -
#+ sort -t / -k 4.1
#
###########################################
main() {
#####
# main() function
#####
echo "#EXTM3U"
while read TrackName
do
TrackTotalSeconds=0
TrackDuration=$(exiftool -s3 -Duration "${TrackName}" | tr -d '\r')
FinalCharacter=$(echo ${TrackDuration: -1})
## Does TrackDuration end with "s"?
## If so, then it's less than 1 minute, and it's processed
##+ differently than if it's more than 1 minute.
if [ ${FinalCharacter} == "s" ]; then
TrackSeconds=$(echo ${TrackDuration} | cut -d" " -f1)
TrackSeconds=$(echo "${TrackSeconds#"${TrackSeconds%%[!0]*}"}")
TrackSeconds=$(printf "%.0f\n" ${TrackSeconds})
TrackSeconds_Seconds=$(( TrackSeconds * 1 ))
else
## If TrackDuration doesn't end with "s",
##+ then it's more than 1 minute, and we process the time,
##+ to convert the Hours:Minutes:Seconds to seconds.
TrackHours=$(echo ${TrackDuration} | cut -d":" -f1)
TrackHours_Seconds=$(( TrackHours * 3600 ))
TrackTotalSeconds=$(( TrackTotalSeconds += TrackHours_Seconds ))
TrackMinutes=$(echo ${TrackDuration} | cut -d":" -f2)
TrackMinutes=$(echo "${TrackMinutes#"${TrackMinutes%%[!0]*}"}")
TrackMinutes_Seconds=$(( TrackMinutes * 60 ))
TrackTotalSeconds=$(( TrackTotalSeconds += TrackMinutes_Seconds ))
TrackSeconds=$(echo ${TrackDuration} | cut -d":" -f3)
TrackSeconds=$(echo "${TrackSeconds#"${TrackSeconds%%[!0]*}"}")
TrackSeconds_Seconds=$(( TrackSeconds * 1 ))
fi
TrackTotalSeconds=$(( TrackTotalSeconds += TrackSeconds_Seconds ))
ArtistName=$(echo $TrackName | cut -d'[' -f2)
ArtistName=$(echo $ArtistName | cut -d']' -f1)
SongTitle=$(echo $TrackName | cut -d'[' -f1)
SongTitle=$(echo $SongTitle | cut -d'/' -f5)
SongTitle=$(echo $SongTitle | cut -c6-)
echo "#EXTINF:"${TrackTotalSeconds}","${ArtistName}" - "${SongTitle}
echo ${TrackName}
done
exit 0
}
#####
# Call main() function
#####
main "$@"
Last edited:
Its with knob so its 2 cm shorter 8cm x 5cm x 2cm and can run 24Vpp and 1500mW but no need to, im wating for analog processor unit to implement some fancy stuff on it as a preamp. You got me nice idea with this, it coud be powered from U1 but i will try to fit 2000mAh.