diff --git a/cctv-scheduler.py b/cctv-scheduler.py
index ddc497d..f5629fb 100644
--- a/cctv-scheduler.py
+++ b/cctv-scheduler.py
@@ -565,11 +565,18 @@ class FFmpeg:
         if que:
             while True:
                 while not que.empty():
-                    local_logger.debug(msg=que.get())
+                    que_str = que.get()
+                    local_logger.debug(msg=que_str)
+
+                    trigger = "Delay between the first packet and last packet in the muxing queue"
+                    if re.match(".*" + trigger + ".*", que_str):
+                        Proc.kill(pid)
+                        local_logger.debug(msg='exit by watchdog, reason: ' + trigger)
                 sleep(sec)
                 if que.empty():
                     Proc.kill(pid)
-                    local_logger.debug(msg='exit by watchdog')
+                    trigger = "que is empty for " + str(sec) + " seconds"
+                    local_logger.debug(msg='exit by watchdog, reason: ' + trigger)
                     break
             exit()