mirror of
https://github.com/sbrl/bin.git
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128 lines
3.4 KiB
Bash
Executable file
128 lines
3.4 KiB
Bash
Executable file
#!/bin/sh
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usage(){
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fmt <<EOF
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DESCRIPTION
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Add cover art to an OGG file.
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Adapted from mussync-tools by biapy: https://github.com/biapy/howto.biapy.com/blob/master/various/mussync-tools
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USAGE
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ogg-cover-art [COVER-FILENAME] OGG-FILENAME
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Add cover art to OGG-FILENAME. If COVER-FILENAME is not specified,
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use cover.jpg, cover.jpeg, or cover.png located in the same folder
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as OGG-FILENAME.
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EOF
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exit
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}
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die(){ printf "Error: ${1}\n" 1>&2; exit 1; }
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require(){ command -v $1 > /dev/null 2>&1 || { suggestion=""; if [ ! -z "$2" ]; then suggestion=" $2"; fi; die "$1 is not installed.${suggestion}"; } }
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if [ $# -eq 1 ]; then if [ "$1" = "--help" -o "$1" = "-h" ]; then usage; fi fi
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#End boilerplate
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require "vorbiscomment" "Try: apt-get install vorbis-tools"
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if [ $# -eq 0 ]; then
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usage
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fi
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outputFile=""
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imagePath=""
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if [ $# -eq 1 ]; then
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outputFile="$1"
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dirName=$(dirname "$1")
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imagePath="${dirName}/cover.jpg"
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if [ ! -f "${imagePath}" ]; then
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imagePath="${dirName}/cover.jpeg"
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if [ ! -f "${imagePath}" ]; then
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imagePath="${dirName}/cover.png"
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if [ ! -f "${imagePath}" ]; then
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die "Couldn't find a cover image in ${dirName}."
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fi
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fi
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fi
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fi
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if [ $# -eq 2 ]; then
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outputFile="$2"
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imagePath="$1"
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fi
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if [ ! -f "${outputFile}" ]; then
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die "Couldn't find ogg file."
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fi
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if [ ! -f "${imagePath}" ]; then
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die "Couldn't find cover image."
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fi
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imageMimeType=$(file -b --mime-type "${imagePath}")
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if [ "${imageMimeType}" != "image/jpeg" -a "${imageMimeType}" != "image/png" ]; then
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die "Cover image isn't a jpg or png image."
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fi
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oggMimeType=$(file -b --mime-type "${outputFile}")
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if [ "${oggMimeType}" != "audio/x-vorbis+ogg" -a "${oggMimeType}" != "audio/ogg" ]; then
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die "Input file isn't an ogg file."
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fi
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#Export existing comments to file
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commentsPath="$(mktemp -t "tmp.XXXXXXXXXX")"
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vorbiscomment --list --raw "${outputFile}" > "${commentsPath}"
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#Remove existing images
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sed -i -e '/^metadata_block_picture/d' "${commentsPath}"
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#Insert cover image from file
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#metadata_block_picture format
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#See: https://xiph.org/flac/format.html#metadata_block_picture
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imageWithHeader="$(mktemp -t "tmp.XXXXXXXXXX")"
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description=""
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#Reset cache file
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echo -n "" > "${imageWithHeader}"
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#Picture type <32>
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printf "0: %.8x" 3 | xxd -r -g0 >> "${imageWithHeader}"
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#Mime type length <32>
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printf "0: %.8x" $(echo -n "${imageMimeType}" | wc -c) | xxd -r -g0 >> "${imageWithHeader}"
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#Mime type (n * 8)
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echo -n "${imageMimeType}" >> "${imageWithHeader}"
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#Description length <32>
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printf "0: %.8x" $(echo -n "${description}" | wc -c) | xxd -r -g0 >> "${imageWithHeader}"
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#Description (n * 8)
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echo -n "${description}" >> "${imageWithHeader}"
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#Picture with <32>
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printf "0: %.8x" 0 | xxd -r -g0 >> "${imageWithHeader}"
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#Picture height <32>
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printf "0: %.8x" 0 | xxd -r -g0 >> "${imageWithHeader}"
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#Picture color depth <32>
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printf "0: %.8x" 0 | xxd -r -g0 >> "${imageWithHeader}"
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#Picture color count <32>
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printf "0: %.8x" 0 | xxd -r -g0 >> "${imageWithHeader}"
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#Image file size <32>
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printf "0: %.8x" $(wc -c "${imagePath}" | cut --delimiter=' ' --fields=1) | xxd -r -g0 >> "${imageWithHeader}"
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#Image file
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cat "${imagePath}" >> "${imageWithHeader}"
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echo "metadata_block_picture=$(base64 --wrap=0 < "${imageWithHeader}")" >> "${commentsPath}"
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#Update vorbis file comments
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vorbiscomment --write --raw --commentfile "${commentsPath}" "${outputFile}"
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#Delete temp files
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rm "${imageWithHeader}"
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rm "${commentsPath}"
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