2 files changed, 85 insertions, 23 deletions
diff --git a/ffextract-audio b/ffextract-audio
index b95dd8f..24ca2c1 100755
--- a/ffextract-audio
+++ b/ffextract-audio
@@ -13,29 +13,19 @@ delete_in_file=no
 ffmpeg_flag_y=
 status=0
 
-while test "${1::1}" = '-'; do
-	if test "${1}" = '--'; then
-		shift
-		break
-	elif test "${1}" = '-'; then
-		break
-	fi
-
-	arg="${1:1}"
-	while test -n "${arg}"; do
-		flag="${arg::1}"
-		arg="${arg:1}"
-		if test "${flag}" = r; then
-			recursive=yes
-		elif test "${flag}" = D; then
-			delete_in_file=yes
-		elif test "${flag}" = y; then
-			ffmpeg_flag_y=-y
-		else
-			usage
-		fi
-	do
+while getopts Dry flag; do
+	case "$flag" in
+	D)
+		delete_in_file=yes;;
+	r)
+		recursive=yes;;
+	y)
+		ffmpeg_flag_y=-y;;
+	?)
+		usage;;
+	esac
 done
+shift $(( ${OPTIND} - 1 ))
 
 if test ! $# = 1 && test ! $# = 2; then
 	usage
@@ -59,7 +49,7 @@ getext () {
 }
 
 removeext () {
-	printf '%s\n' "$1" | sed 's/\.[^.]*$//'
+	printf '%s\0' "$1" | tr '\0\n' '\n\0' | sed 's/\.[^.]*$//' | tr '\0' '\n'
 }
 
 extract () {
diff --git a/ffextract-audio.1 b/ffextract-audio.1
new file mode 100644
index 0000000..79a0eb2
--- /dev/null
+++ b/ffextract-audio.1
@@ -0,0 +1,72 @@
+.TH FFEXTRACT-AUDIO 1 FFUTILS
+.SH NAME
+ffextract-audio \- create an audio file from a video file
+
+.SH SYNOPSIS
+.B ffextract-audio
+[-Dry]
+.I in-file
+.RI [ out-file ]
+
+.SH DESCRIPTION
+.B ffextract-audio
+extracts the audio track from
+.I in-file
+and copies it into the new file
+.IR out-file .
+
+.SH OPTIONS
+.TP
+.BR \-D
+Remove the original file upon success.
+.TP
+.BR \-r
+Process all files in
+.I in-file
+recursively.
+.TP
+.BR \-y
+Overwrite output file if it already exists.
+
+.SH OPERANDS
+.TP
+.I in-file
+Video file or, if the
+.B -r
+option is used, directory of video files
+to extract the audio track from.
+.TP
+.I out-file
+Output file or output directory, if
+.I in-file
+is a directory.
+
+If
+.I out-file
+is omitted,
+.I in-file
+is used except the filename suffix is
+replaced to appropriately reflect the file format
+used for the audio track.
+Otherwise if the
+.B -r
+option is used,
+the files names found inside
+.I in-file
+are appended to
+.IR out-file
+and the filename suffix are likewise replaced.
+
+.SH EXIT VALUE
+.TP
+0
+Successful completely.
+.TP
+1
+An error occurred.
+
+.SH SEE ALSO
+.BR ffmpeg (1),
+.BR ffextract-frame (1),
+.BR ffget-audio-extension (1),
+.BR ffuse-frame (1)