catch for snapshot.js inode block

libs/cameraThread/snapshot.js

@@ -55,10 +55,16 @@ snapProcess.stdout.on('data',(data)=>{
 })
 snapProcess.on('close',function(data){
   if(useIcon){
-    var fileCopy = fs.createReadStream(temporaryImageFile).pipe(fs.createWriteStream(iconImageFile))
-    fileCopy.on('close',function(){
+    var iconStream = fs.createWriteStream(iconImageFile);
+    var fileCopy = fs.createReadStream(temporaryImageFile).pipe(iconStream)
+    var closeTimeout = setTimeout(() => {iconStream.end()}, 2000);
+    function endProcess(){
+        clearTimeout(closeTimeout)
         process.exit();
-    })
+    }
+    fileCopy
+        .on('close', endProcess)
+        .on('error', endProcess);
   }else{
     process.exit();
   }

libs/monitor.js

@@ -201,7 +201,6 @@ module.exports = function(s,config,lang){
                       })
                     }
                     try{
-                        var snapBuffer = []
                         var temporaryImageFile = streamDir + s.gid(5) + '.jpg'
                         var iconImageFile = streamDir + 'icon.jpg'
                         var ffmpegCmd = splitForFFPMEG(`-y -loglevel warning ${isDetectorStream ? '-live_start_index 2' : ''} -re ${inputOptions.join(' ')} -i "${url}" ${outputOptions.join(' ')} -f image2 -an -frames:v 1 "${temporaryImageFile}"`)