mp3

#!/bin/sh

n=0
done=0
count=0
maxjobs=5

args=()

while [[ $# -gt 0 ]]; do
  case $1 in
    -c|--count)
      count="$2"
      shift # past argument
      shift # past value
      ;;
    -j|--jobs)
      maxjobs="$2"
      shift # past argument
      shift # past value
      ;;
    -*|--*)
      echo "Unknown option $1"
      exit 1
      ;;
    *)
      args+=("$1") # save positional arg
      shift # past argument
      ;;
  esac
done

set -- "${args[@]}" # restore positional parameters

arg=""
do_mp3(){
	if [[ $arg == *.mp3 ]]; then continue; fi

	if [ $(stat -c %s "$arg") -eq 0 ]; then
        	echo "file [$arg] is empty, skip"
                continue
	fi

	if [ $count -ne 0 ] && [ $done -eq $count ]; then
		wait
		echo "done [$count], exit"
		exit 0
	fi

	RHVoice-test -q max -p marianna+slt -R 48000 -i $arg -o "$arg.mp3" &
	
	((++done))
	# limit jobs
	if (( $(($((++n)) % $maxjobs)) == 0 )) ; then
		wait # wait until all have finished (not optimal, but most times good enough)
		echo "done [$n:$#]"
	fi
}

echo "running"

if [ $# -eq 0 ]; then
	for arg in $(ls | sort -V)
	do
		do_mp3
	done
else
	for arg in "$@"
	do
		do_mp3
	done
fi

wait
echo "finish"