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#!/usr/bin/env bash
MUSIC_DIR="$HOME/Downloads/music";
EXT=opus;
AUDIO_FILE="$1";
TIMESTAMPS_FILE="$2";
ALBUM_ARTIST=$(echo "$TIMESTAMPS_FILE" | sed -e 's/^.*\///g' -e 's/\.splits$//');
ARTIST="$(echo $ALBUM_ARTIST | awk -F' - ' '{print $1}')";
ALBUM="$(echo $ALBUM_ARTIST | awk -F' - ' '{print $2}')";
OUT_DIR="$MUSIC_DIR/$ARTIST/$ALBUM";
[[ ! -d "$OUT_DIR" ]] && mkdir -p "$OUT_DIR";
AUDIOINFO=$(mediainfo "$AUDIO_FILE" --Output=JSON);
DURATION=$(echo -e "$AUDIOINFO" | jq -r '.media.track[0].Duration');
TOTAL_TRACKS=$(cat "$TIMESTAMPS_FILE" | wc -l);
add_tags() { ~/scripts/music/tag.sh "$@"; }
padd() { printf "%0${2:-2}d" $(echo $1 | cut -d'.' -f1); }
to_timestamp() {
local duration=$1;
local hours=$(echo "$duration / 3600" | bc);
duration=$(echo "$duration % 3600" | bc);
local mins=$(echo "$duration / 60" | bc);
local secs=$(echo "$duration % 60" | bc);
echo "$(padd $hours):$(padd $mins):$(padd $secs)";
}
starttime="";
music="";
index=0;
(cat "$TIMESTAMPS_FILE"; echo "<<END") | while read split; do
if [[ ! -z "$split" ]]; then
if [[ "$split" == "<<END" ]]; then
endtime=$(to_timestamp $DURATION);
else
endtime="$(echo $split | cut -d' ' -f1)";
nextmusic="$(echo $split | cut -d' ' -f 2-)";
fi;
if [[ ! -z "$music" ]]; then
output="$OUT_DIR/$(padd $index) - $music.$EXT";
echo "$starttime - $endtime ($output)";
ffmpeg \
-nostdin -y \
-loglevel -8 \
-i "$AUDIO_FILE" \
-ss "$starttime" \
-to "$endtime" \
-vn "$output" && \
add_tags \
-a "$ARTIST" \
-A "$ALBUM" \
-t "$music" \
-n "$music" \
-N "$TOTAL_TRACKS" \
"$output" \
;
fi;
music=$nextmusic;
starttime=$endtime;
index=$((index + 1));
fi;
done;
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