Update streamlit_app.py

streamlit_app.py

@@ -105,10 +105,12 @@ def process_video(uploaded_video, background, bg_type, progress_callback=None):
 
         if progress_callback:
             progress_callback("🚀 Stage 1: Creating transparent video (matting & segmentation)...")
+        # >>> CHANGE: pass a short watchdog timeout so hangs surface quickly
         transparent_path, audio_path = stage1_create_transparent_video(
             tmp_vid_path,
             sam2_predictor=sam2_predictor,
-            matanyone_processor=matanyone_processor
+            matanyone_processor=matanyone_processor,
+            mat_timeout_sec=60
         )
         if not transparent_path or not os.path.exists(transparent_path):
             raise RuntimeError("Stage 1 failed: Transparent video not created")