fix crash on youtube-asl filtering

app.py

@@ -182,7 +182,7 @@ if uploaded_file is not None:
         # These are indices 0, 4, 13, 14, 17, 33, 37, 39, 46, 52, 55, 61, 64, 81, 82, 93, 133, 151, 152, 159, 172, 178,
         # 181, 263, 269, 276, 282, 285, 291, 294, 311, 323, 362, 386, 397, 468, 473.
         # Colin: note that these are with refine_face_landmarks on, and are relative to the component itself. Working it all out the result is:
-        components=['POSE_LANDMARKS', 'FACE_LANDMARKS', 'LEFT_HAND_LANDMARKS', 'RIGHT_HAND_LANDMARKS']
+        chosen_component_names=['POSE_LANDMARKS', 'FACE_LANDMARKS', 'LEFT_HAND_LANDMARKS', 'RIGHT_HAND_LANDMARKS']
         points_dict={
             "POSE_LANDMARKS": [
                 "LEFT_SHOULDER",
@@ -228,11 +228,22 @@ if uploaded_file is not None:
                 "362",
                 "386",
                 "397",
-                "468", # 468 only exists with the refine_face_landmarks option on MediaPipe
-                "473", # 473 only exists with the refine_face_landmarks option on MediaPipe
             ]
         }
 
+        # check if we have the extra points from refine_face_landmarks
+        additional_face_points = ["468", "473"]
+        for additional_point in additional_face_points:
+            try:
+                point_index = pose.header.get_point_index("FACE_LANDMARKS", additional_point)
+                points_dict['FACE_LANDMARKS'].append(additional_point)
+            except ValueError:
+                # not in the list
+                # st.write(f"Point {additional_point} not in file")
+                pass
+
+
+
     # Filter button logic
     # Filter section
     st.write("### Filter .pose File")