Update app.py

app.py

@@ -165,8 +165,8 @@ def infer(url_in,interpolation,fps_output,resize_n,winsize,o_flow):
       alpha = 1.0/len(result_frames)
       beta = (1.0 - alpha)
       res = cv2.addWeighted(rgb, alpha, res, beta, 0.0, res)
-      cv2.imwrite(f"opticalfb{str(i)}.png", rgb)
-      depth_frames.append(f"opticalfb{str(i)}.png")
+      cv2.imwrite(f"opticalfb{i}.jpg", rgb)
+      depth_frames.append(f"opticalfb{i}.jpg")
       i+=1
       prvs = nxt