cut_by_vtt.sh


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#!/bin/sh

set -e

filename=${1:-}
audioname=$(printf "$filename" | sed "s/\(.*\).vtt/\1/")

# given vtt what is original ext?
ffmpeg_commands=$(grep "\-->" $filename | awk -F " " -v aname="$audioname" '{print "ffmpeg -i "aname" -ss " $1 " -to " $3 " -vn -acodec copy " NR ".ogg"}')

while read cline;
do
    echo $cline && sleep 1;
done <<< $ffmpeg_commands