54 lines
1.5 KiB
Bash
54 lines
1.5 KiB
Bash
#!/bin/bash
|
|
|
|
function die()
|
|
{
|
|
printf '%s\n' "$1" >&2
|
|
exit "${2-1}"
|
|
}
|
|
|
|
input_file="$1"
|
|
input_directory="$2"
|
|
output_directory="$3"
|
|
tmp_directory=/data/tmp/transcode
|
|
output_file="`echo "$input_file" | sed -E "s#^$input_directory(.+)\\.[a-z0-9]+\\$#$output_directory\\1.mp3#g"`"
|
|
|
|
directory="`dirname "$output_file"`"
|
|
if [ ! -d "$directory" ] ; then
|
|
echo "New Directory: \"$directory\""
|
|
mkdir -p "$directory" || die "Could not create directory \"$directory\"."
|
|
fi
|
|
|
|
transcode=false
|
|
|
|
if [ ! -f "$output_file" ] ; then
|
|
echo "New MP3: \"$output_file\""
|
|
transcode=true
|
|
elif [ "$input_file" -nt "$output_file" ] ; then
|
|
echo "Input file is newer: \"$output_file\""
|
|
transcode=true
|
|
fi
|
|
|
|
if [ "$transcode" = true ] ; then
|
|
input_type="`file -b --mime-type "$input_file"`"
|
|
case "$input_type" in
|
|
audio/flac)
|
|
tmp_file="$tmp_directory/`basename "$output_file"`"
|
|
echo "Transcoding MP3..."
|
|
ffmpeg -hide_banner -loglevel fatal -i "$input_file" -y -b:a 320k -qscale:a 2 -id3v2_version 3 -f mp3 "$tmp_file" || die "Failed to transcode to \"$tmp_file\"."
|
|
mv -f "$tmp_file" "$output_file" || die "Could not move file to \"$output_file\"."
|
|
;;
|
|
|
|
application/octet-stream)
|
|
echo "Warning: Assuming \"$input_file\" is a MP3 file."
|
|
;&
|
|
audio/mpeg)
|
|
echo "Copying MP3..."
|
|
cp -f "$input_file" "$output_file"
|
|
;;
|
|
|
|
*)
|
|
die "Unsupported input type $input_type (\"$input_file\")"
|
|
;;
|
|
esac
|
|
fi
|