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Continue after interrupt
Until now, when the conversion of a audiobook gets interrrupted during the splitting phase, one has to delete all the output files and restart from beginning. This can be very uncomfy, especially if it's a long audiobook and the computer did work on it for several hours. I added some changes, so that one only has to delete the last (incompletely generated) chapter and add "--continue " to the command where CHAPTERNUMBER is the chapter, that has been interrupted while splitting of. For this to work I mainly just skipped the steps which were already done before interruption with if-conditions.
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Nicko98
GitHub
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AAXtoMP3
68
AAXtoMP3
@ -5,7 +5,7 @@
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# Command Line Options
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# Usage Synopsis.
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usage=$'\nUsage: AAXtoMP3 [--flac] [--aac] [--opus ] [--single] [--chaptered]\n[-e:mp3] [-e:m4a] [-e:m4b] [--authcode <AUTHCODE>] [--no-clobber]\n[--target_dir <PATH>] [--complete_dir <PATH>] [--validate]\n{FILES}\n'
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usage=$'\nUsage: AAXtoMP3 [--flac] [--aac] [--opus ] [--single] [--chaptered]\n[-e:mp3] [-e:m4a] [-e:m4b] [--authcode <AUTHCODE>] [--no-clobber]\n[--target_dir <PATH>] [--complete_dir <PATH>] [--validate]\n[--continue <CHAPTERNUMBER>]{FILES}\n'
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codec=libmp3lame # Default encoder.
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extension=mp3 # Default encoder extension.
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mode=chaptered # Multi file output
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@ -16,6 +16,8 @@ container=mp3 # Just in case we need to change the container. Use
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VALIDATE=0 # Validate the input aax file(s) only. No Transcoding of files will occur
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DEBUG=0 # Default off, If set extremely verbose output.
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noclobber=0 # Default off, clobber only if flag is enabled
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continue=0 # Default off, If set Transcoding is skiped and chapter splitting starts at chapter continueAt.
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continueAt=1 # Optional chapter to continue splitting the chapters.
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# -----
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# Code tip Do not have any script above this point that calls a function or a binary. If you do
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@ -52,6 +54,8 @@ while true; do
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-d | --debug ) DEBUG=1; shift ;;
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# Validate ONLY the aax file(s) No transcoding occurs
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-V | --validate ) VALIDATE=1; shift ;;
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# continue spliting chapters at chapter continueAt
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--continue ) continueAt="$2"; continue=1; shift 2 ;;
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# Command synopsis.
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-h | --help ) printf "$usage" $0 ; exit ;;
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# Standard flag signifying the end of command line processing.
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@ -381,19 +385,21 @@ do
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debug_vars "Book and Variable values" title auth_code mode aax_file container codec bitrate artist album_artist album album_date genre copyright output_file metadata_file working_directory
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# -----
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# This is the main work horse command. This is the primary transcoder.
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# This is the primary transcode. All the heavy lifting is here.
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debug 'ffmpeg -loglevel error -stats -activation_bytes "${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}" "${output_file}"'
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</dev/null ffmpeg -loglevel error -stats -activation_bytes "${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}" -f ${container} "${output_file}"
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log "Created ${output_file}."
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# -----
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if [ "${continue}" == "0" ]; then
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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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debug '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}" "${output_file}"'
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</dev/null ffmpeg -loglevel error -stats -activation_bytes "${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}" -f ${container} "${output_file}"
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log "Created ${output_file}."
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# -----
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fi
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# Grab the cover art if available.
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cover_file="${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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if [ "${continue}" == "0" ]; then
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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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fi
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# -----
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# OK now spit the file if that's what you want.
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# If we want multiple file we take the big mp3 and split it by chapter.
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@ -402,13 +408,17 @@ do
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if [ "${mode}" == "chaptered" ]; then
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# Playlist m3u support
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playlist_file="${output_directory}/${title}.m3u"
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log "Creating PlayList ${title}.m3u"
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echo '#EXTM3U' > "${playlist_file}"
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if [ "${continue}" == "0" ]; then
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log "Creating PlayList ${title}.m3u"
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echo '#EXTM3U' > "${playlist_file}"
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fi
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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 ${output_file}..."
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if [ "${continue}" == "1" ]; then
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log "Continuing at chapter ${continueAt}:"
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fi
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chapternum=1
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while read -r -u9 first _ _ chapter_start _ chapter_end
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do
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@ -431,21 +441,21 @@ do
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# Big Long chapter debug
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debug_vars "Chapter Variables:" cover_file chapter_start chapter_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 "Splitting chapter ${chapternum}/${chaptercount} start:${chapter_start%?}(s) end:${chapter_end}(s)"
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</dev/null ffmpeg -loglevel quiet -nostats -i "${output_file}" -i "${cover_file}" -ss "${chapter_start%?}" -to "${chapter_end}" -map 0:0 -map 1:0 -acodec "${codec}" ${id3_version_param} \
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-metadata:s:v title="Album cover" -metadata:s:v comment="Cover (Front)" -metadata track="${chapternum}" -metadata title="${chapter_title}" \
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-metadata:s:a title="${chapter_title}" -metadata:s:a track="${chapternum}" -map_chapters -1 \
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-f ${container} "${chapter_file}"
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# -----
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# OK lets get what need for the next chapter in the Playlist m3u file.
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# Playlist creation.
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duration=$(echo "${chapter_end} - ${chapter_start%?}" | bc)
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echo "#EXTINF:${duration%.*},${title} - ${chapter}" >> "${playlist_file}"
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echo "${chapter_title}.${extension}" >> "${playlist_file}"
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if [ "$((${continueAt} > ${chapternum}))" = "0" ]; then
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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 "Splitting chapter ${chapternum}/${chaptercount} start:${chapter_start%?}(s) end:${chapter_end}(s)"
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</dev/null ffmpeg -loglevel quiet -nostats -i "${output_file}" -i "${cover_file}" -ss "${chapter_start%?}" -to "${chapter_end}" -map 0:0 -map 1:0 -acodec "${codec}" ${id3_version_param} \
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-metadata:s:v title="Album cover" -metadata:s:v comment="Cover (Front)" -metadata track="${chapternum}" -metadata title="${chapter_title}" \
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-metadata:s:a title="${chapter_title}" -metadata:s:a track="${chapternum}" -map_chapters -1 \
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-f ${container} "${chapter_file}"
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# -----
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# OK lets get what need for the next chapter in the Playlist m3u file.
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# Playlist creation.
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duration=$(echo "${chapter_end} - ${chapter_start%?}" | bc)
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echo "#EXTINF:${duration%.*},${title} - ${chapter}" >> "${playlist_file}"
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echo "${chapter_title}.${extension}" >> "${playlist_file}"
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fi
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chapternum=$((chapternum + 1 ))
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# ----
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