Update app.py

app.py

@@ -874,6 +874,7 @@ def generate_video(
         height: Output video height in pixels.
         width: Output video width in pixels.
         camera_lora: Camera motion control LoRA to apply during generation (enables exactly one at runtime).
+        audio_path: Optiona audio file for soundtrack. Could be a lipsync audio or a background music or a mixture of both guiding the image-to-vidoe motion process.
         progress: Gradio progress tracker.
     Returns: