portability, NONUMBER SEPARATOR and VERBOSITY variables, numbers from 00
parent
824bbc7d6f
commit
8d25557220
139
get-tracks.sh
139
get-tracks.sh
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@ -18,23 +18,23 @@ reverse_word_order(){
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# bc is mandatory: arythmetic operations are very limited in ash.
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get_seconds(){
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local n=0
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local v=0
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number_position=0
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value=0
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values=$(echo "$*" | sed 's/:/\
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/g' | sed "s/^0//")
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for i in $(reverse_word_order $values); do
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case $n in
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0) v=$(echo "$v + $i " | bc);;
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1) v=$(echo "$v + (60 * $i)" | bc);;
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2) v=$(echo "$v + (3600 * $i)" | bc);;
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case $number_position in
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0) value=$(echo "$value + $i " | bc);;
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1) value=$(echo "$value + (60 * $i)" | bc);;
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2) value=$(echo "$value + (3600 * $i)" | bc);;
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*) echo "invalid timecode $*"; exit 1;;
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esac
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n=$((n+1))
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number_position=$((number_position+1))
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done
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echo $v
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echo $value
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}
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# Get a more usable time representation for the beginning and the end of songs.
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@ -44,66 +44,80 @@ get_values(){
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time_file="$2"
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total_length=$(soxi -D "${audio_file}" | sed "s/\..*//") # integer values only
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n=0
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track_number=1
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while read X; do
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if [ $n -ne 0 ]; then
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to=$(get_time $X)
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to_s=$(get_seconds $to)
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echo -e "$from_s\t$to_s\t$title"
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if [ $track_number -ne 1 ]; then
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to_unformatted=$(get_time $X)
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to_s=$(get_seconds $to_unformatted)
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echo "$from_s $to_s $title"
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fi
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#echo $X
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from=$(get_time $X)
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from_s=$(get_seconds $from)
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from_unformatted=$(get_time $X)
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from_s=$(get_seconds $from_unformatted)
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title=$(get_title $X)
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if [ -z "${WITH_NUMBER}" ]; then
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:
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else
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title="${n}${WITH_NUMBER}${title}"
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if [ "$NONUMBER" = "" ]; then
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track_n=$track_number
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if [ $track_number -lt 10 ]; then
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track_n="0$track_number"
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fi
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title="${track_n}${SEPARATOR}${title}"
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fi
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n=$(echo $n + 1 | bc)
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track_number=$(echo $track_number + 1 | bc)
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done < "${time_file}"
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echo -e "$from_s\t$total_length\t$title"
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echo "$from_s $total_length $title"
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}
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run_ffmpeg(){
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local file=$1
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local from=$2
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local duration=$3
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local title=$4
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file=$1
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from=$2
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duration=$3
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final_title=$4
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if [ "${SIMULATION}" = 1 ]; then
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[ -z "${QUIET}" ] && echo "ffmpeg -loglevel error -ss '$from' -t '$duration' -i '${file}' '${title}'"
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else
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[ -z "${QUIET}" ] && echo "ffmpeg -loglevel error -ss '$from' -t '$duration' -i '${file}' '${title}'"
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$(< /dev/null ffmpeg -loglevel quiet -ss "$from" -t "$duration" -i "${file}" "${title}")
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LOG_LEVEL="-loglevel error"
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FROM="-ss $from"
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DURATION="-t $duration"
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INPUT_FILE="-i $file"
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OUTPUT_FILE="$final_title"
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case "v$VERBOSITY" in
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v0)
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;;
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v1)
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echo "extracting '$final_title'"
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;;
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v2)
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echo "ffmpeg $LOG_LEVEL $FROM $DURATION $INPUT_FILE '$OUTPUT_FILE'"
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;;
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*)
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echo "verbosity is not set properly" >&2
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exit 1
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;;
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esac
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if [ "$SIMULATION" = "" ]; then
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$(< /dev/null ffmpeg $LOG_LEVEL $FROM $DURATION $INPUT_FILE "$OUTPUT_FILE")
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fi
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}
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rip(){
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n=0
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from=0
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to=0
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track_start_s=0
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track_end_s=0
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audio_file="$1"
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time_file="$2"
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[ "$FORMAT" = "" ] && echo "default format: opus" && FORMAT="opus"
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#echo "from to duration title"
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get_values "$audio_file" "$time_file" | while read LINE; do
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from=$(echo $LINE | cut -d ' ' -f 1)
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to=$(echo $LINE | cut -d ' ' -f 2)
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title=$(echo $LINE | cut -d ' ' -f 3-)
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duration=$(echo "$to - $from" | bc)
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track_start_s=$(echo $LINE | cut -d ' ' -f 1)
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track_end_s=$(echo $LINE | cut -d ' ' -f 2)
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track_title=$(echo $LINE | cut -d ' ' -f 3-)
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track_duration=$(echo "$track_end_s - $track_start_s" | bc)
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run_ffmpeg "${audio_file}" "${from}" "${duration}" "${title}.${FORMAT}"
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n=$((n + 1))
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run_ffmpeg "${audio_file}" "${track_start_s}" "${track_duration}" "${track_title}.${FORMAT}"
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done
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}
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@ -115,11 +129,15 @@ usage(){
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echo "song-list line format example: 1:30 My second track of the playlist"
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echo "show output format: start end title"
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echo
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echo "envvar: SIMULATION [0|1] (do not invoke ffmpeg)"
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echo "envvar: FORMAT [mp3,ogg,opus,…] (see the ffmpeg documentation)"
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echo "envvar: WITH_NUMBER [separator] (not null = write song number, with this separator)"
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echo " example: WITH_NUMBER=_ Song names will be 1_song.opus 2_song.opus…"
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echo "envvar: QUIET (if set to any value, ffmpeg commands are not displayed)"
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echo "envvar: SIMULATION, if non empty, do not invoke ffmpeg"
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echo "envvar: NONUMBER, if non empty, do not write song number"
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echo "envvar: FORMAT [mp3,ogg,opus,…], see the ffmpeg documentation"
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echo "envvar: SEPARATOR [separator] (default: ' - '), write song number, with this separator"
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echo " example with SEPARATOR='_': song names will be 01_song.opus 02_song.opus…"
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echo "envvar: VERBOSITY [0-3] (default: 1)"
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echo " VERBOSITY 0: no output exept errors from ffmpeg"
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echo " VERBOSITY 1: simple indications on the current track being extracted"
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echo " VERBOSITY 2: print actual ffmpeg commands the script currently runs"
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}
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if [ $# -lt 1 ]; then
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@ -130,12 +148,32 @@ fi
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command=$1
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shift
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if [ "$FORMAT" = "" ]; then
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echo "default FORMAT: opus"
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FORMAT="opus"
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fi
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if [ "$VERBOSITY" = "" ]; then
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echo "default VERBOSITY: 1"
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VERBOSITY=1
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fi
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# Assume that there should be a separator.
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if [ "$SEPARATOR" = "" ]; then
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echo "default SEPARATOR: ' - '"
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SEPARATOR=" - "
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fi
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if [ "$SIMULATION" != "" ]; then
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echo "SIMULATION envvar is set: this is a simulation."
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fi
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case "x-${command}" in
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x-show)
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# Takes the audio file in first parameter
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if [ $# -ne 2 ]; then
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echo "Usage: $0 show music-file time-stamps-file"
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echo "Usage: $0 show music-file time-stamps-file" >&2
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exit 1
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fi
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@ -146,12 +184,13 @@ case "x-${command}" in
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# Takes the audio file in first parameter
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if [ $# -ne 2 ]; then
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echo "Usage: $0 show music-file time-stamps-file"
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echo "Usage: $0 show music-file time-stamps-file" >&2
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exit 1
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fi
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rip "$1" "$2"
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;;
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*)
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usage 1>&2
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exit 1
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