#!/bin/sh

CHARSET=$(file -bi $1 | awk -F= '{ print $2 }')
VTT="${1%.*}".vtt
echo  "WEBVTT" > $VTT
echo  "" >> $VTT
if [ "${CHARSET}" = "utf-8" ]; then
	cattool=cat
else
	cattool="iconv -f ${CHARSET} -t utf-8"
fi
$cattool $1 | sed -e '/[0-9][0-9]:[0-9][0-9]:[0-9][0-9],[0-9][0-9][0-9] --> [0-9][0-9]:[0-9][0-9]:[0-9][0-9],[0-9][0-9][0-9]/s/,/./g' -e "s/^M//g" >> $VTT