diff --git a/test/merge.py b/test/merge.py
new file mode 100644
index 0000000..9e63bf4
--- /dev/null
+++ b/test/merge.py
@@ -0,0 +1,21 @@
+import subprocess
+import os
+
+ffmpeg_path = "ffmpeg"
+
+cmd = f"{ffmpeg_path} -y -loglevel error -f concat -safe 0 -i %s -c copy test.mp4"
+
+tmp_merge_file = "merge.tmp"
+with open(tmp_merge_file, mode="w", encoding="utf8") as f:
+    f.write("file './72439149X00E26C681B09_20240311000015_20240311000030.mp4'\n")
+    # f.write("file ./72439149X00E26C681B09_20240311001015_20240311001030.mp4")
+    
+proc = subprocess.Popen(
+        cmd % tmp_merge_file,
+        stdin=subprocess.PIPE,
+        stdout=None,
+        shell=True
+)
+
+proc.communicate()
+os.remove(tmp_merge_file)
\ No newline at end of file