Update app.py

app.py

@@ -76,11 +76,13 @@ def process_input(uploaded_file, youtube_link, image_url, sensitivity):
                 return None, None, None, "Invalid video properties detected."
             
             output_path = os.path.join(tempfile.gettempdir(), f"out_{os.urandom(8).hex()}.mp4")
-            fourcc = cv2.VideoWriter_fourcc(*'avc1')
+            # Use 'mp4v' instead of 'avc1' as it might work better with Spaces' OpenCV
+            fourcc = cv2.VideoWriter_fourcc(*'mp4v')
             out = cv2.VideoWriter(output_path, fourcc, fps, (width, height))
             
             if not out.isOpened():
-                return None, None, None, "Failed to initialize video writer."
+                # Fallback message if VideoWriter fails
+                return None, None, None, "Video processing failed: No suitable encoder available in this environment. Try a different input format or contact support."
             
             processed_frames = 0
             while True:
@@ -105,7 +107,7 @@ def process_input(uploaded_file, youtube_link, image_url, sensitivity):
                 return None, None, None, "No frames processed from video."
                 
             if not os.path.exists(output_path) or os.path.getsize(output_path) < 1024:
-                return None, None, None, f"Output video created but too small ({os.path.getsize(output_path)} bytes) - processing failed."
+                return None, None, None, f"Output video created but too small ({os.path.getsize(output_path)} bytes) - processing failed. Codec support might be limited."
                 
             return output_path, None, output_path, f"Video processed successfully! ({processed_frames}/{frame_count} frames)"