98 lines
3.6 KiB
Bash
98 lines
3.6 KiB
Bash
|
#!/bin/bash
|
||
|
|
||
|
function die()
|
||
|
{
|
||
|
printf '%s\n' "$1" >&2
|
||
|
exit "${2-1}"
|
||
|
}
|
||
|
|
||
|
function ogg_add_cover()
|
||
|
{
|
||
|
ogg_file="$1"
|
||
|
cover_file="$2"
|
||
|
|
||
|
tmp_metafile="$tmp_directory/metadata"
|
||
|
tmp_mdimg="$tmp_directory/image-with-header"
|
||
|
|
||
|
cover_mime_type="`file -b --mime-type "$cover_file"`"
|
||
|
|
||
|
description=""
|
||
|
vorbiscomment --list --raw "$ogg_file" > "$tmp_metafile" && \
|
||
|
sed -i -e '/^metadata_block_picture/d' "$tmp_metafile" && \
|
||
|
echo -n "" > "$tmp_mdimg" && \
|
||
|
printf "0: %.8x" 3 | xxd -r -g0 >> "$tmp_mdimg" && \
|
||
|
printf "0: %.8x" $(echo -n "$cover_mime_type" | wc -c) | xxd -r -g0 >> "$tmp_mdimg" && \
|
||
|
echo -n "$cover_mime_type" >> "$tmp_mdimg" && \
|
||
|
printf "0: %.8x" $(echo -n "$description" | wc -c) | xxd -r -g0 >> "$tmp_mdimg" && \
|
||
|
echo -n "$description" >> "$tmp_mdimg" && \
|
||
|
printf "0: %.8x" 0 | xxd -r -g0 >> "$tmp_mdimg" && \
|
||
|
printf "0: %.8x" 0 | xxd -r -g0 >> "$tmp_mdimg" && \
|
||
|
printf "0: %.8x" 0 | xxd -r -g0 >> "$tmp_mdimg" && \
|
||
|
printf "0: %.8x" 0 | xxd -r -g0 >> "$tmp_mdimg" && \
|
||
|
printf "0: %.8x" $(wc -c "$cover_file" | cut --delimiter=' ' --fields=1) | xxd -r -g0 >> "$tmp_mdimg" && \
|
||
|
cat "$tmp_cover" >> "$tmp_mdimg" && \
|
||
|
echo "metadata_block_picture=$(base64 --wrap=0 < "$tmp_mdimg")" >> "$tmp_metafile" && \
|
||
|
vorbiscomment --write --raw --commentfile "$tmp_metafile" "$ogg_file" && \
|
||
|
rm "$tmp_metafile" "$tmp_mdimg"
|
||
|
}
|
||
|
|
||
|
input_file="$1"
|
||
|
input_directory="$2"
|
||
|
output_directory="$3"
|
||
|
tmp_directory=/data/tmp
|
||
|
output_file="`echo "$input_file" | sed -E "s#^$input_directory(.+)\\.[a-z0-9]+\\$#$output_directory\\1.ogg#g"`"
|
||
|
|
||
|
directory="`dirname "$output_file"`"
|
||
|
if [ ! -d "$directory" ] ; then
|
||
|
echo "New Directory: \"$directory\""
|
||
|
mkdir -p "$directory" || die "Could not create directory \"$directory\"."
|
||
|
fi
|
||
|
|
||
|
transcode=false
|
||
|
|
||
|
if [ ! -f "$output_file" ] ; then
|
||
|
echo "New OGG: \"$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 "$input_file"`"
|
||
|
|
||
|
tmp_ogg="$tmp_directory/`basename "$output_file"`"
|
||
|
tmp_cover="$tmp_directory/cover"
|
||
|
|
||
|
case "$input_type" in
|
||
|
audio/flac)
|
||
|
echo "Transcoding OGG..."
|
||
|
ffmpeg -hide_banner -loglevel fatal -i "$input_file" -y -map a -qscale:a 6 -id3v2_version 3 -f ogg "$tmp_ogg" || die "Could not transcode to \"$tmp_ogg\"."
|
||
|
|
||
|
echo "Adding OGG cover image..."
|
||
|
metaflac --export-picture-to="$tmp_cover" "$input_file" && \
|
||
|
ogg_add_cover "$tmp_ogg" "$tmp_cover" || die "Could not add cover image to \"$tmp_ogg\"."
|
||
|
|
||
|
mv -f "$tmp_ogg" "$output_file" || die "Could not move file to \"$output_file\"."
|
||
|
;;
|
||
|
|
||
|
application/octet-stream)
|
||
|
echo "Warning: Assuming \"$input_file\" is a MP3 file."
|
||
|
;&
|
||
|
audio/mpeg)
|
||
|
echo "Transcoding OGG..."
|
||
|
ffmpeg -hide_banner -loglevel fatal -i "$input_file" -y -map a -qscale:a 6 -id3v2_version 3 -f ogg "$tmp_ogg" || die "Could not transcode to \"$tmp_ogg\"."
|
||
|
|
||
|
echo "Adding OGG cover image..."
|
||
|
exiftool -Picture -b "$input_file" > "$tmp_cover" && \
|
||
|
ogg_add_cover "$tmp_ogg" "$tmp_cover" || die "Could not add cover image to \"$tmp_ogg\"."
|
||
|
|
||
|
mv -f "$tmp_ogg" "$output_file" || die "Could not move file to \"$output_file\"."
|
||
|
;;
|
||
|
|
||
|
*)
|
||
|
die "Unsupported input type $input_type (\"$input_file\")"
|
||
|
;;
|
||
|
esac
|
||
|
fi
|