try new dataset loading

rwth_phoenix_weather_2014.py

@@ -1,5 +1,6 @@
 from typing import List, Dict
 
+import cv2
 import datasets
 import pandas as pd
 from datasets.download.streaming_download_manager import ArchiveIterable
@@ -87,7 +88,7 @@ class RWTHPhoenixWeather2014(datasets.GeneratorBasedBuilder):
         }
 
         if self.config.name != "pre-training":
-            features_dict["frames"] = datasets.Sequence(feature=datasets.Image())
+            features_dict["frames"] = datasets.Sequence(feature=datasets.Array3D(shape=(3, 224, 224), dtype="uint8"))
 
         return datasets.DatasetInfo(
             description=_DESCRIPTION + self.config.description,
@@ -178,7 +179,7 @@ class RWTHPhoenixWeather2014(datasets.GeneratorBasedBuilder):
 
             if self.config.name != 'pre-training':
                 result["frames"] = [
-                    {"path": p, "bytes": im.read()} for p, im in frames
+                    cv2.imdecode(im, 1) for p, im in frames
                 ]
 
             yield key, result