Update app.py

app.py

@@ -45,6 +45,7 @@ def swap_face(source_file, target_file,doFaceEnhancer):
     roop.globals.video_encoder = "libx264"
     roop.globals.video_quality = 18
     roop.globals.max_memory = 16
+    roop.globals.reference_face_position = 0
     roop.globals.execution_providers = decode_execution_providers(['cpu'])
     roop.globals.execution_threads = suggest_execution_threads()