Way faster chapter splitting

Just a little change in the ffmpeg call, but this massively increases the speed of chapter splitting. (In my first test approximately by a factor of 10.)
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Nicko98 2021-02-02 22:56:09 +01:00 committed by GitHub
parent 9e3a2a3787
commit dc5309ebc3
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@ -16,7 +16,7 @@ container=mp3 # Just in case we need to change the container. Use
VALIDATE=0 # Validate the input aax file(s) only. No Transcoding of files will occur
DEBUG=0 # Default off, If set extremely verbose output.
noclobber=0 # Default off, clobber only if flag is enabled
continue=0 # Default off, If set Transcoding is skipped and chapter splitting starts at chapter continueAt.
continue=0 # Default off, If set Transcoding is skiped and chapter splitting starts at chapter continueAt.
continueAt=1 # Optional chapter to continue splitting the chapters.
# -----
@ -54,7 +54,7 @@ while true; do
-d | --debug ) DEBUG=1; shift ;;
# Validate ONLY the aax file(s) No transcoding occurs
-V | --validate ) VALIDATE=1; shift ;;
# continue splitting chapters at chapter continueAt
# continue spliting chapters at chapter continueAt
--continue ) continueAt="$2"; continue=1; shift 2 ;;
# Command synopsis.
-h | --help ) printf "$usage" $0 ; exit ;;
@ -169,10 +169,9 @@ if [[ "x$(type -P ffmpeg)" == "x" ]]; then
echo "ERROR ffmpeg was not found on your env PATH variable"
echo "Without it, this script will break."
echo "INSTALL:"
echo "MacOS: brew install ffmpeg"
echo "Ubuntu: sudo apt-get update; sudo apt-get install ffmpeg libav-tools x264 x265 bc"
echo "Ubuntu (20.04): sudo apt-get update; sudo apt-get install ffmpeg x264 x265 bc"
echo "RHEL: yum install ffmpeg"
echo "MacOS: brew install ffmpeg"
echo "Ubuntu: sudo apt-get update; sudo apt-get install ffmpeg libav-tools x264 x265 bc"
echo "RHEL: yum install ffmpeg"
exit 1
fi
@ -446,7 +445,7 @@ do
# Extract chapter by time stamps start and finish of chapter.
# This extracts based on time stamps start and end.
log "Splitting chapter ${chapternum}/${chaptercount} start:${chapter_start%?}(s) end:${chapter_end}(s)"
</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}" ${id3_version_param} \
</dev/null ffmpeg -loglevel quiet -nostats -ss "${chapter_start%?}" -to "${chapter_end}" -i "${output_file}" -i "${cover_file}" -map 0:0 -map 1:0 -acodec "${codec}" ${id3_version_param} \
-metadata:s:v title="Album cover" -metadata:s:v comment="Cover (Front)" -metadata track="${chapternum}" -metadata title="${chapter_title}" \
-metadata:s:a title="${chapter_title}" -metadata:s:a track="${chapternum}" -map_chapters -1 \
-f ${container} "${chapter_file}"