More robustness (#7)

- Check for running recording
- Handle reconnects better (try for 5min, time out after 10sec)

audiologger.sh

@@ -45,6 +45,12 @@ fi
 # Remove old files based on the KEEP variable
 find "$RECDIR" -type f -mtime "+$KEEP" -exec rm {} \; || log_message "Failed to remove old files in $RECDIR"
 
+# Check if an ffmpeg process with the specified stream URL and timestamp is already running
+if pgrep -af "ffmpeg.*$STREAMURL.*$TIMESTAMP" > /dev/null; then
+    log_message "An ffmpeg recording process for $TIMESTAMP with $STREAMURL is already running. Exiting."
+    exit 1
+fi
+
 # Fetch current program name
 if [ "$PARSE_METADATA" -eq 1 ]; then
     # Parse metadata using jq
@@ -66,4 +72,4 @@ fi
 echo "$PROGRAM_NAME" > "${RECDIR}/${TIMESTAMP}.meta" || { log_message "Failed to write metadata file"; exit 1; }
 
 # Record next hour's stream
-ffmpeg -loglevel error -user_agent "ZuidWest Audiologger 3.0" -t 3600 -reconnect 1 -reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 2 -i "$STREAMURL" -c copy -f mp3 -y "${RECDIR}/${TIMESTAMP}.mp3" & disown
+ffmpeg -loglevel error -t 3600 -reconnect 1 -reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 300 -reconnect_on_http_error 404 -rw_timeout 10000000 -i "$STREAMURL" -c copy -f mp3 -y "${RECDIR}/${TIMESTAMP}.mp3" & disown