diff --git a/ESP32CAM-ONVIF/sd_recorder.h b/ESP32CAM-ONVIF/sd_recorder.h
new file mode 100644
index 0000000..3d569ba
--- /dev/null
+++ b/ESP32CAM-ONVIF/sd_recorder.h
@@ -0,0 +1,3 @@
+#pragma once
+void sd_recorder_init();
+void sd_recorder_loop();