unsdh

#!/bin/bash



if (($(ffmpeg -i "$1" 2>&1 | grep -c "(eng): Subtitle") != 1)); then
    echo "Wrong number of eng sub tracks. Bailing."
    exit 1
fi

if fffmpeg -i "$1" 2>&1 | grep "(eng): Subtitle" | grep -q -v "subrip"; then
    echo "Sub isn't SRT. Bailing."
    exit 1
fi

ffmpeg -i "$1" -map 0:s:m:language:eng tmp.srt

# fix weird line endings
dos2unix tmp.srt

# clean srt
sed 's|\[.*\]||' tmp.srt | awk '{$1=$1;print}' | sed 's|^[ ]*-[ ]*$||g' > tmp2.srt

# fix empty entries
ffmpeg -i tmp2.srt tmp3.srt

mkdir -p out
ffmpeg -i "$1" -i tmp3.srt -c copy -map 0:v -map 0:a -map 1 -disposition:s:0 default -metadata:s:s:0 language=en out/"$1"

rm tmp.srt tmp2.srt tmp3.srt