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https://github.com/KrumpetPirate/AAXtoMP3.git
synced 2024-11-17 18:58:58 +01:00
Refactor some variables for readability.
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upuv
parent
c2082ccfc0
commit
71e140259b
43
AAXtoMP3
43
AAXtoMP3
@ -63,6 +63,7 @@ if [ "$#" -eq 0 ]; then
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exit 1
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fi
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# Setup safer bash script defaults.
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set -o errexit -o noclobber -o nounset -o pipefail
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# ========================================================================
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@ -231,28 +232,28 @@ normalize_whitespace() {
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# ========================================================================
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# Main Transcode Loop
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for path
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for aax_file
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do
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# Check for Presense of Audiobook. Note this break the processing of
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# of a list of books once a single missing file is found.
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if [[ ! -r "${path}" ]] ; then
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echo "ERROR: Input Audiobook file $path missing"
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if [[ ! -r "${aax_file}" ]] ; then
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echo "ERROR: Input Audiobook file $aax_file missing"
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exit 1
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fi
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# -----
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# Make sure everything is a variable. Simplifying Command interpretation
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save_metadata "${path}"
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save_metadata "${aax_file}"
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genre=$(get_metadata_value genre)
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artist=$(get_metadata_value artist)
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title=$(get_metadata_value title | sed 's/'\:'/'-'/g' | sed 's/ / /g' | sed 's/- /-/g' | xargs -0)
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if [ "x${targetdir}" != "x" ] ; then
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output_directory="${targetdir}/${genre}/${artist}/${title}"
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else
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output_directory="$(dirname "${path}")/${genre}/${artist}/${title}"
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output_directory="$(dirname "${aax_file}")/${genre}/${artist}/${title}"
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fi
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full_file_path="${output_directory}/${title}.${extension}"
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output_file="${output_directory}/${title}.${extension}"
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bitrate="$(get_bitrate)k"
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album_artist="$(get_metadata_value album_artist)"
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album="$(get_metadata_value album)"
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@ -264,26 +265,26 @@ do
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# Fancy declartion of which book we are decoding. Including the AUTHCODE.
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dashline="----------------------------------------------------"
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log "$(printf '\n----Decoding---%s%s--%s--' "${title}" "${dashline:${#title}}" "${auth_code}")"
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log "Decoding ${path}"
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log "Source ${aax_file}"
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# Big long DEBUG output. Fully describes the settings used for transcoding.
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# Not this is a long debug command. It's not critical to operation. It's purely for people debugging
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# and coders wanting to extend the script.
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debug_vars "Book and Variable values" title auth_code mode path container codec bitrate artist album_artist album album_date genre copyright full_file_path metadata_file working_directory
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debug_vars "Book and Variable values" title auth_code mode aax_file container codec bitrate artist album_artist album album_date genre copyright output_file metadata_file working_directory
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# -----
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# This is the main work horse command. This is the primary transcoder.
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# This is the primary transcode. All the heavy lifting is here.
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</dev/null ffmpeg -loglevel error -stats -activation_bytes "${auth_code}" -i "${path}" -vn -codec:a "${codec}" -ab ${bitrate} -map_metadata -1 -metadata title="${title}" -metadata artist="${artist}" -metadata album_artist="${album_artist}" -metadata album="${album}" -metadata date="${album_date}" -metadata track="1/1" -metadata genre="${genre}" -metadata copyright="${copyright}" "${full_file_path}"
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</dev/null ffmpeg -loglevel error -stats -activation_bytes "${auth_code}" -i "${aax_file}" -vn -codec:a "${codec}" -ab ${bitrate} -map_metadata -1 -metadata title="${title}" -metadata artist="${artist}" -metadata album_artist="${album_artist}" -metadata album="${album}" -metadata date="${album_date}" -metadata track="1/1" -metadata genre="${genre}" -metadata copyright="${copyright}" "${output_file}"
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log "Created ${full_file_path}."
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log "Created ${output_file}."
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# -----
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# Grab the cover art if available.
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cover_path="${output_directory}/cover.jpg"
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log "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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cover_file="${output_directory}/cover.jpg"
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log "Extracting cover into ${cover_file}..."
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</dev/null ffmpeg -loglevel error -activation_bytes "${auth_code}" -i "${aax_file}" -an -codec:v copy "${cover_file}"
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# -----
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# OK now spit the file if that's what you want.
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@ -298,7 +299,7 @@ do
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# Determine the number of chapters.
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chaptercount=$($GREP -Pc "Chapter.*start.*end" $metadata_file)
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log "Extracting ${chaptercount} chapter files from ${full_file_path}..."
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log "Extracting ${chaptercount} chapter files from ${output_file}..."
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chapternum=1
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while read -r -u9 first _ _ start _ end
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@ -321,12 +322,12 @@ do
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fi
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# Big Long chapter debug
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debug_vars "Chapter Variables:" cover_path start end id3_version_param chapternum chapter_title chapter_file
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debug_vars "Chapter Variables:" cover_file start end id3_version_param chapternum chapter_title chapter_file
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# Extract chapter by time stamps start and finish of chapter.
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# This extracts based on time stamps start and end.
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log "Spliting chapter ${chapternum} start:${start%?}(s) end:${end}(s)"
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</dev/null ffmpeg -loglevel quiet -nostats -i "${full_file_path}" -i "${cover_path}" -ss "${start%?}" -to "${end}" -map 0:0 -map 1:0 -acodec copy ${id3_version_param} \
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</dev/null ffmpeg -loglevel quiet -nostats -i "${output_file}" -i "${cover_file}" -ss "${start%?}" -to "${end}" -map 0:0 -map 1:0 -acodec copy ${id3_version_param} \
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-metadata:s:v title="Album cover" -metadata:s:v comment="Cover (Front)" -metadata track="${chapternum}" -metadata title="${chapter_title}" \
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"${chapter_file}"
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@ -341,7 +342,7 @@ do
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# ----
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# Add the cover art to m4a and m4b file types.
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if [[ ${extension} == "m4a" && $(type -P mp4art) ]]; then
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mp4art -q --add "${cover_path}" "${chapter_file}"
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mp4art -q --add "${cover_file}" "${chapter_file}"
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log "Added cover art to ${chapter_title}"
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fi
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@ -355,20 +356,20 @@ do
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done 9< "$metadata_file"
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# Clean up of working directoy stuff.
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rm "${full_file_path}"
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rm "${output_file}"
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log "Done creating chapters for ${output_directory}."
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else
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# Perform file tasks on output file.
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# ----
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# Add the cover art to m4a and m4b file types.
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if [[ ${extension} == "m4a" && $(type -P mp4art) ]]; then
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mp4art -q --add "${cover_path}" "${full_file_path}"
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mp4art -q --add "${cover_file}" "${output_file}"
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log "Added cover art to ${title}.${extension}"
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fi
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# ----
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# Detect if we are actuall m4b instead of m4a Then rename the file.
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if [[ ${extension} == "m4a" && ${container}="m4b" ]]; then
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mv "${full_file_path}" "${full_file_path/.m4a/.m4b}"
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mv "${output_file}" "${output_file/.m4a/.m4b}"
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fi
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fi
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@ -381,7 +382,7 @@ do
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# Check the target dir for if set if it is writable
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if [[ "x${completedir}" != "x" ]]; then
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log "Moving Transcoded ${path} to ${completedir}"
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mv "${path}" "${completedir}"
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mv "${aax_file}" "${completedir}"
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fi
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done
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