diff --git a/controller/api/video_clip_blueprint.py b/controller/api/video_clip_blueprint.py
index 05de25c..0a9f2f6 100644
--- a/controller/api/video_clip_blueprint.py
+++ b/controller/api/video_clip_blueprint.py
@@ -18,6 +18,28 @@ def get_video_clip_info(video_clip_id):
     return jsonify(video_clip.to_json())
 
 
+@blueprint.post("/probe")
+def probe_video_duration():
+    payload = request.json
+    base_path = ""
+    if "base_path" in payload:
+        base_path = payload["base_path"]
+    if "file" in payload:
+        if os.path.isabs(payload["file"]):
+            base_path = ""
+        file = payload["file"]
+    else:
+        return error_json_response("provide file first")
+    duration_str = get_video_real_duration(os.path.join(base_path, file))
+    duration = duration_str_to_float(duration_str)
+    return jsonify({
+        "base_path": base_path,
+        "file": file,
+        "duration_str": duration_str,
+        "duration": duration,
+    })
+
+
 @blueprint.put("/<int:video_clip_id>")
 def modify_video_clip(video_clip_id):
     video_clip = VideoClip.query.get(video_clip_id)