add a script that parses more readable time for pulling a segment from

a file using ffmpeg..

clipmv.sh

@@ -0,0 +1,69 @@
+#!/bin/sh
+# This is in the public domain.
+# written by John-Mark Gurney
+
+timetosec()
+{
+	sec="${1##*:}"
+	rem="${1%:*}"
+	if [ x"$rem" = x"" -o x"$1" = x"$sec" ]; then
+		hour=0
+		min=0
+		sec=${sec#0}
+	else
+		orig="$rem"
+		min="${rem##*:}"
+		rem="${rem%:*}"
+		sec=${sec#0}
+		if [ x"$rem" = x"" -o x"$min" = x"$orig" ]; then
+			hour=0
+		else
+			hour="$rem"
+		fi
+
+	fi
+
+	echo $(($hour * 60 * 60 + $min * 60 + $sec ))
+}
+
+failed()
+{
+	echo failed
+	exit 1
+}
+
+if [ x"$1" = x"-t" ]; then
+	set -x
+
+	x=$(timetosec 30)
+	if [ x"$x" != x"30" ]; then
+		failed
+	fi
+
+	x=$(timetosec 1:30)
+	if [ x"$x" != x"$((60+30))" ]; then
+		failed
+	fi
+
+	x=$(timetosec 1:01:30)
+	if [ x"$x" != x"$((60*60+60+30))" ]; then
+		failed
+	fi
+
+	exit 0
+fi
+
+if [ x"$#" != x"4" ]; then
+	echo "Usage: $0 <inp> <start> <stop> <output>"
+	exit 1
+fi
+
+inp="$1"
+start="$2"
+end="$3"
+out="$4"
+
+startsec=$(timetosec "$start")
+endsec=$(timetosec "$end")
+
+ffmpeg -ss "$startsec" -i "$inp" -t $(($endsec - $startsec + 1)) -codec copy "$out"