diff --git a/gnes/preprocessor/video/video_decode.py b/gnes/preprocessor/video/video_decode.py
index d5f68890..7c3432f1 100644
--- a/gnes/preprocessor/video/video_decode.py
+++ b/gnes/preprocessor/video/video_decode.py
@@ -53,14 +53,16 @@ def apply(self, doc: 'gnes_pb2.Document') -> None:
             else:
                 self.logger.error('the document "raw_bytes" is empty!')
 
-            if self.chunk_spliter == 'frame_split':
+            if self.chunk_spliter == 'base':
                 for i, frame in enumerate(video_frames):
                     c = doc.chunks.add()
                     c.doc_id = doc.doc_id
                     c.blob.CopyFrom(array2blob(frame))
                     c.offset = i
                     c.weight = 1.0
-            elif self.chunk_spliter == 'none':
+            elif self.chunk_spliter == 'shot':
+                raise NotImplementedError
+            else:
                 chunk = doc.chunks.add()
                 chunk.doc_id = doc.doc_id
                 chunk.blob.CopyFrom(array2blob(video_frames))
diff --git a/tests/test_video_decode_preprocessor.py b/tests/test_video_decode_preprocessor.py
index e4a78770..d64e28bf 100644
--- a/tests/test_video_decode_preprocessor.py
+++ b/tests/test_video_decode_preprocessor.py
@@ -50,4 +50,4 @@ def test_video_decode_preprocessor(self):
                     self.assertGreater(len(d.chunks), 0)
                     for _ in range(len(d.chunks)):
                         shape = blob2array(d.chunks[_].blob).shape
-                        self.assertEqual(shape[1:], (299, 299, 3))
+                        self.assertEqual(shape, (299, 299, 3))
diff --git a/tests/yaml/preprocessor-video_decode.yml b/tests/yaml/preprocessor-video_decode.yml
index 60a5ab29..c8e36f75 100644
--- a/tests/yaml/preprocessor-video_decode.yml
+++ b/tests/yaml/preprocessor-video_decode.yml
@@ -3,6 +3,6 @@ parameters:
   frame_rate: 5
   vframes: 1
   frame_size: '299:299'
-  chunk_spliter: 'none'
+  chunk_spliter: 'base'
 gnes_config:
   is_trained: true