validate for sync before trying to parse further

lib/tssmooth.js

@@ -153,6 +153,7 @@ TsSmooth.prototype._transform = function(chunk, output, cb) {
         console.error('slice', sync, end);
         buf = Buffer.concat([buf.slice(0, index), buf.slice(sync)]);
         end -= sync-index;
+        continue;
       }
 
       var pcr = parsePCR(buf, index);