fixed some messages and check for return code in check_audiostream for mpv

check.sh

 
 		if [ "$bytes" -lt 1024 ]
 		then
-			fail "mplayer retrieved ${bytes}B of stream instead of expected $sz"
+			fail "mplayer retrieved ${bytes}B of stream $1 instead of expected $sz"
 			return
 		fi
 		if [ "$res" -eq 0 ]
 	then
 		if [ "$verbose" -gt 1 ]
 		then
-			logdate INFO "$tc_name: Running mpv on '$1' for $sz" 3
+			logdate INFO "$tc_name: Running mpv on '$1'" 3
 		fi
 		tmpfile=$(mktemp -t check_audiostream.XXXXXXXXX)
-		$MPV --vo=null --ao=null --o=$tmpfile --of=wav --length 1 "$1" &> /dev/null
+		$MPV --vo=null --ao=null --o=$tmpfile --of=wav --length 2 "$1" &> /dev/null || fail "mpv could not stream $1" && return
 		bytes=$(du $tmpfile | cut -f1)
 		rm $tmpfile 2>/dev/null