fix

app.py

@@ -62,7 +62,7 @@ class VideoHighlightDetector:
             {
                 "role": "system",
                 "content": [{"type": "text", "text": system_message}]
-            },
+            }
             {
                 "role": "user",
                 "content": [
@@ -341,7 +341,9 @@ def create_ui(examples_path: str, model_path: str):
                         "-i", video,
                         "-ss", str(start_time),
                         "-t", str(segment_length),
-                        "-c", "copy",
+                        "-c:v", "libx264",
+                        "-preset", "ultrafast",  # Use ultrafast preset for speed
+                        "-pix_fmt", "yuv420p",   # Ensure compatible pixel format
                         segment_path
                     ]
                     subprocess.run(cmd, check=True)