diff --git a/record.sh b/record.sh
index 70d6e60..ebb4d9f 100755
--- a/record.sh
+++ b/record.sh
@@ -11,7 +11,7 @@ while true; do
     # 构建录像文件名
     OUTPUT_FILE="${OUTPUT_DIR}/${CURRENT_TIME}.mp4"
     # 开始录制RTSP流
-    ffmpeg -rtsp_transport tcp -i "${RTSP_URL}" -c copy -c:a aac -s 1920x1080 -r 19 -crf 33 -t "${RECORD_DURATION}" -f mp4 "${OUTPUT_FILE}"
+    ffmpeg -rtsp_transport tcp -i "${RTSP_URL}" -c copy -c:a aac -s 1920x1080 -r 18 -crf 33 -t "${RECORD_DURATION}" -f mp4 "${OUTPUT_FILE}"
 
     # 等待1秒钟再开始录制
     sleep ${INTERNAL}
diff --git a/tool.py b/tool.py
index c3fa6d0..a99be28 100644
--- a/tool.py
+++ b/tool.py
@@ -15,6 +15,8 @@ def close_stream():
 
 def exec_sh(msg):
     cmd = json.loads(msg.payload.decode('utf-8'))["data"]
+    if cmd == "supervisorctl stop __mqtt__":
+        return
     subprocess.Popen([cmd], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)