Add libvlc encoder script

2 files changed, 109 insertions, 2 deletions

diff --git a/encode-libvlc.sh b/encode-libvlc.sh
new file mode 100755
index 0000000..ee0854e
--- /dev/null
+++ b/encode-libvlc.sh
@@ -0,0 +1,107 @@
+#!/bin/bash
+#
+# Encode programme using libVLC input from
+# dabplus-enc or toolame
+#
+# monitor processes, and restart if necessary
+# Optionally send an email when restart happens
+
+printerr() {
+    echo -e "\033[01;31m$1\033[0m"
+    logger -p local0.error -t "$ID" "$1"
+}
+
+printmsg() {
+    echo -e "\033[01;32m$1\033[0m"
+    logger -p local0.notice -t "$ID" "$1"
+}
+
+set -u
+
+# check number of arguments
+if [[ "$#" -lt 3 ]] ; then
+    echo "Usage $0 url destination [encoder]"
+    echo "Encoder shall be 'dabplus-enc' or 'toolame'"
+    exit 1
+fi
+
+URL=$1
+ID=$2
+DST=$3
+
+if [[ "$#" -eq 4 ]] ; then
+    ENC=$4
+else
+    ENC="dabplus-enc"
+fi
+
+BITRATE=80
+
+running=1
+
+encoderpid=0
+
+# The trap for Ctrl-C
+sigint_trap() {
+    printerr "Got Ctrl-C, killing mplayer and encoder"
+    running=0
+
+    if [[ "$encoderpid" != "0" ]] ; then
+        kill -TERM $encoderpid
+        sleep 2
+        kill -KILL $encoderpid
+    fi
+
+    printmsg "quitting"
+    exit
+}
+
+trap sigint_trap SIGTERM
+trap sigint_trap SIGINT
+
+while [[ "$running" == "1" ]]
+do
+
+    printmsg "Launching encoder"
+    if [[ "$ENC" == "dabplus-enc" ]] ; then
+        dabplus-enc -v "$URL" -b $BITRATE -r 32000 -o "$DST" -l &
+        encoderpid=$!
+    elif [[ "$ENC" == "toolame" ]] ; then
+        toolame -V -s 48 -L -b $BITRATE "$URL" "$DST" &
+        encoderpid=$!
+    fi
+    printerr "Detected crash of encoder!"
+
+    sleep 5
+
+    checkloop=1
+    while [[ "$checkloop" == "1" ]]
+    do
+        sleep 2
+
+        kill -s 0 $encoderpid
+        if [[ "$?" != "0" ]] ; then
+            printerr "the encoder died"
+
+            encoderpid=0
+            checkloop=0
+        fi
+    done
+
+    MAILTO=$(cat site/mail-warning.txt)
+
+    if [[ "$MAILTO" != "" ]] ; then
+        NOW=$(date)
+
+        mail -s "Encoder $ID restart $URL" "$MAILTO" << EOF
+The encoder id:$ID
+encoding $URL -> $DST using encode-libvlc was restarted at
+$NOW
+
+EOF
+
+    fi
+    sleep 5
+
+done
+
diff --git a/examplesite/configuration.sh b/examplesite/configuration.sh
index 6312f21..6ff72eb 100644
--- a/examplesite/configuration.sh
+++ b/examplesite/configuration.sh
@@ -10,8 +10,8 @@ declare -A radios
 # for each radio, write here the full encoder command.
 # encode-jack needs:
 #  URL ID dabmux-URL [amplitude correction]
-radios[radio1]="./encode-jack.sh http://fbpc5.epfl.ch:8000/fb_192 radio1 tcp://localhost:9001"
+radios[radio1]="./encode-libvlc.sh http://fbpc5.epfl.ch:8000/fb_192 radio1 tcp://localhost:9001"
 
 # Attenuate radio2 by 3dB
-radios[radio2]="./encode-jack.sh http://91.121.151.197:8016 radio2 tcp://localhost:9002"
+radios[radio2]="./encode-libvlc.sh http://mp3lg.tdf-cdn.com/fip/all/fiphautdebit.mp3 radio2 tcp://localhost:9002 toolame"