#!/usr/bin/env bash
cdir=$(pwd)
read -r INPUT

error() {
  echo "{\"error\":\"$1\"}"
  exit 0
}

video_file=$(echo "$INPUT" | jq -r '.video_file // empty')
[[ -z "$video_file" ]] && error "missing video_file"
[[ ! -f "$video_file" ]] && error "$video_file not exists"

ffmpeg -i $video_file -c:v copy -an output_video$$.mp4 -c:a pcm_s16le -f wav output_audio$$.wav

echo "{\"video_file\": \"$cdir/output_video$$.mp4\", \"audio_file\": \"$cdir/output_audio$$.wav\"}"