From 75055e126e10f074516a2be67f901472af98803a Mon Sep 17 00:00:00 2001
From: Jonas Smedegaard <dr@jones.dk>
Date: Fri, 5 May 2017 14:45:11 +0200
Subject: Fix avoid unbound variables.

---
 bin/stream | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

(limited to 'bin/stream')

diff --git a/bin/stream b/bin/stream
index 452f47e..4b2f3e7 100755
--- a/bin/stream
+++ b/bin/stream
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-set -e
+set -eu
 
 # TODO: Externalize to site-specific configfile
 [ $# -gt 0 ] || set -- morla 5002 -- dvcam ../../content/icon_small.png
@@ -15,9 +15,9 @@ while [ $# -gt 0 ]; do
 	  --)
 		shift; break;;
 	  *)
-		if [ -z "$HOST" ]; then
+		if [ -z "${HOST:-}" ]; then
 			HOST=$1
-		elif [ -z "$FIRSTPORT" ]; then
+		elif [ -z "${FIRSTPORT:-}" ]; then
 			FIRSTPORT=$1
 		else
 			exit1 "Too many arguments: Max. 2 about target"
@@ -30,6 +30,10 @@ done
 # TODO: Externalize to site-specific configfile
 [ $# -gt 0 ] || set -- dvcam ../../content/icon_small.png
 
+AINPUT=
+VINPUT=
+WINPUT=
+XINPUT=
 while [ $# -gt 0 ]; do
 	case $1 in
 		alsa=*) ALSA=${1#*=}; AINPUT=$((AINPUT+1));;
@@ -62,8 +66,8 @@ fi
 [ -z "$VINPUT" ] || [ $VINPUT -eq 1 ] || exit1 "Too many arguments: Max. 1 video source"
 [ -z "$WINPUT" ] || [ $WINPUT -eq 1 ] || exit1 "Too many arguments: Max. 1 watermark source"
 [ -z "$XINPUT" ] || [ $XINPUT -eq 1 ] || exit1 "Too many arguments: Max. 1 multimedia source"
-[ -n "$NOAUDIO" ] || [ -z "$AINPUT$XINPUT" ] || HASAUDIO=1
-[ -n "$NOVIDEO" ] || [ -z "$VINPUT$XINPUT" ] || HASVIDEO=1
+[ -n "${NOAUDIO:-}" ] || [ -z "$AINPUT$XINPUT" ] || HASAUDIO=1
+[ -n "${NOVIDEO:-}" ] || [ -z "$VINPUT$XINPUT" ] || HASVIDEO=1
 [ "$AINPUT$VINPUT$XINPUT" = "1" ] || TWOSOURCES=1
 VSTREAMINDEX=1
 [ -n "$AINPUT" ] || VSTREAMINDEX=0
@@ -83,11 +87,12 @@ height=$HEIGHT
 MKWEBM="[v${height}webm]"
 MKMPEG="[v${height}mpeg]"
 
+VCODECCOUNT=
 [ -z "$MKWEBM" ] || VCODECCOUNT=$((VCODECCOUNT+1))
 [ -z "$MKMPEG" ] || VCODECCOUNT=$((VCODECCOUNT+1))
 
-SAVESTEM="$SAVEDIR/$(date +%Y%m%d-%H%M%S)"
-${SAVEDIR:+export FFREPORT=file="$SAVESTEM.log"}
+[ -z "${SAVEDIR:-}" ] || SAVESTEM="${SAVEDIR:-}/$(date +%Y%m%d-%H%M%S)"
+[ -z "${SAVEDIR:-}" ] || export FFREPORT=file="$SAVESTEM.log"
 
 # * scale+watermark trick based on http://stackoverflow.com/a/10937357
 # * routing based on http://trac.ffmpeg.org/wiki/Creating%20multiple%20outputs#Teepseudo-muxer
-- 
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