convert.bash

#!/bin/bash

set -e

die () { 
        echo "$1" >&2 
        exit 1 
} 
 
print_usage_and_die () { 
        die "Usage: $0 [ webm | flv | all ] \$DIRECTORY"
}

print_ok () {
	echo -e "[\e[00;32mOK\e[00m] $@"
}

print_error () {

	echo -e "[\e[00;31mERROR\e[00m] $@"
}

webm () {
	filename="$1"; shift
	file_no_ext="${filename%.*}"
	vargs=(-i "$filename" -vn -acodec copy "$file_no_ext.ogg")
	#echo -n "ffmpeg ${vargs[@]}"
	ffmpeg "${vargs[@]}"
	if [ $? -eq 0 ]; then
		print_ok $(basename "$file_no_ext.ogg")
	else
		print_error $(basename "$file_no_ext.ogg")
	fi
	return $!
}

flv () {
	filename="$1"; shift
	file_no_ext="${filename%.*}"
	vargs=(-i "$filename" -acodec flac "$file_no_ext.flac")
	ffmpeg "${vargs[@]}"
	if [ $? -eq 0 ]; then
		print_ok $(basename "$file_no_ext.flac")
	else
		print_error $(basename "$file_no_ext.flac")
	fi
	return $1
}

convert_file () {
	search="$1"; shift
	echo find $1 -type f '(' "${x_type[@]}" ')'
	find $search -type f '(' "${x_type[@]}" ')' -print0 | while IFS= read -r -d '' filename; do
		file_ext="${filename##*.}"
		case "$file_ext" in
			"webm" ) webm "$filename"  ;;
			"flv" ) flv "$filename" ;;
			* ) echo "no file converter known for $file_ext, skipping $filename" >&2 ;;
		esac
	done
}


options="fFwhp:"
x_type=()
x_force=false

while getopts $options option
do
	case "$option" in
		F ) x_force=true;;
		f ) x_type+=(-iname '*.flv' -o) ;;
		w ) x_type+=(-iname '*.webm' -o) ;;
		p ) search="$OPTARG" ;;
		h ) print_usage_and_die ;;
		* ) print_usage_and_die ;;
	esac
done

[ "$#" -lt 1 ] && print_usage_and_die

shift $(($OPTIND - 1))

[ ${#x_type[@]} -gt 0 ] && unset x_type[$(expr ${#x_type[@]} - 1 )]

convert_file "$search"