fix

app.py

@@ -42,7 +42,7 @@ def fn(video: gr.Video):
       if i % config.yield_frame_steps == 0:
         with tempfile.NamedTemporaryFile(suffix='.jpeg') as f:
           quality = 1
-          _, img_encoded = cv2.imencode('.jpg', img_array, [int(cv2.IMWRITE_JPEG_QUALITY), quality])
+          _, img_encoded = cv2.imencode('.jpg', frame, [int(cv2.IMWRITE_JPEG_QUALITY), quality])
           f.write(img_encoded)
           yield f.name, None
     processed_clip = ImageSequenceClip(processed_frames, clip.fps)