mirror of
https://github.com/KrumpetPirate/AAXtoMP3.git
synced 2024-11-18 03:08:57 +01:00
ee01461f9a
As discussed in https://github.com/KrumpetPirate/AAXtoMP3/issues/26 I've added a quick and dirty fix to add chapter padding (for audio books containing up to 999 chapters) for non-single conversion mode.
114 lines
3.5 KiB
Bash
Executable File
114 lines
3.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -o errexit -o noclobber -o nounset -o pipefail
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codec=libmp3lame
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extension=mp3
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mode=chaptered
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if [ "$#" -eq 0 ]; then
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echo "Usage: bash AAXtoMP3.sh [--flac] [--single] AUTHCODE {FILES}"
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exit 1
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fi
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if [[ "$1" = '--flac' ]]
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then
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codec=flac
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extension=flac
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shift
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fi
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if [[ "$1" == '--single' ]]
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then
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mode=single
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shift
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fi
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if [ ! -f .authcode ]; then
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auth_code=$1
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shift
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else
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auth_code=`head -1 .authcode`
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fi
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debug() {
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echo "$(date "+%F %T%z") ${1}"
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}
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trap 'rm -r -f "${working_directory}"' EXIT
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working_directory=`mktemp -d 2>/dev/null || mktemp -d -t 'mytmpdir'`
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metadata_file="${working_directory}/metadata.txt"
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save_metadata() {
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local media_file
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media_file="$1"
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ffprobe -i "$media_file" 2> "$metadata_file"
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}
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get_metadata_value() {
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local key
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key="$1"
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normalize_whitespace "$(grep --max-count=1 --only-matching "${key} *: .*" "$metadata_file" | cut -d : -f 2 | sed -e 's#/##g;s/ (Unabridged)//' | tr -s '[:blank:]' ' ')"
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}
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get_bitrate() {
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get_metadata_value bitrate | grep --only-matching '[0-9]\+'
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}
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normalize_whitespace() {
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echo $*
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}
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chapter_padding() {
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chaptercount=$(grep -Pc "title\s+:\sChapter\s\d+" $metadata_file)
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if [[ $chaptercount -gt 9 && $chaptercount -lt 100 ]]
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then
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chapter=$(sed -e 's/Chapter \([[:digit:]]\)$/Chapter 0\1/' <<<$chapter)
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elif [[ $chaptercount -gt 99 && $chaptercount -lt 999 ]]
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then
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chapter=$(sed -e 's/Chapter \([[:digit:]]\)$/Chapter 00\1/' <<<$chapter)
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chapter=$(sed -e 's/Chapter \([[:digit:]]\{2\}\)$/Chapter 0\1/' <<<$chapter)
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fi
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}
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for path
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do
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debug "Decoding ${path} with auth code ${auth_code}..."
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save_metadata "${path}"
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genre=$(get_metadata_value genre)
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artist=$(get_metadata_value artist)
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title=$(get_metadata_value title)
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output_directory="$(dirname "${path}")/${genre}/${artist}/${title}"
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mkdir -p "${output_directory}"
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full_file_path="${output_directory}/${title}.${extension}"
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</dev/null ffmpeg -loglevel error -stats -activation_bytes "${auth_code}" -i "${path}" -vn -codec:a "${codec}" -ab "$(get_bitrate)k" -map_metadata -1 -metadata title="${title}" -metadata artist="${artist}" -metadata album_artist="$(get_metadata_value album_artist)" -metadata album="$(get_metadata_value album)" -metadata date="$(get_metadata_value date)" -metadata track="1/1" -metadata genre="${genre}" -metadata copyright="$(get_metadata_value copyright)" "${full_file_path}"
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debug "Created ${full_file_path}."
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if [ "${mode}" == "chaptered" ]; then
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debug "Extracting chapter files from ${full_file_path}..."
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while read -r -u9 first _ _ start _ end
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do
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if [[ "${first}" = "Chapter" ]]
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then
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read -r -u9 _
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read -r -u9 _ _ chapter
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chapter_padding
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chapter_file="${output_directory}/${title} - ${chapter}.${extension}"
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</dev/null ffmpeg -loglevel error -stats -i "${full_file_path}" -ss "${start%?}" -to "${end}" -codec:a copy -metadata track="${chapter}" "${chapter_file}"
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fi
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done 9< "$metadata_file"
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rm "${full_file_path}"
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debug "Done creating chapters. Chaptered files contained in ${output_directory}."
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fi
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cover_path="${output_directory}/cover.jpg"
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debug "Extracting cover into ${cover_path}..."
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</dev/null ffmpeg -loglevel error -activation_bytes "${auth_code}" -i "${path}" -an -codec:v copy "${cover_path}"
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debug "Done."
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rm "${metadata_file}"
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done
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