1 files changed, 40 insertions, 0 deletions
diff --git a/model-optimizer/extensions/front/onnx/lstm_ext.py b/model-optimizer/extensions/front/onnx/lstm_ext.py
new file mode 100644
index 000000000..34267a1a5
--- /dev/null
+++ b/model-optimizer/extensions/front/onnx/lstm_ext.py
@@ -0,0 +1,40 @@
+"""
+ Copyright (c) 2018 Intel Corporation
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+"""
+
+
+import numpy as np
+
+from extensions.ops.lstm_sequence import LSTMSequence
+from mo.front.extractor import FrontExtractorOp
+from mo.front.onnx.extractors.utils import onnx_attr
+
+
+class LSTMFrontExtractor(FrontExtractorOp):
+    op = 'LSTM'
+    enabled = True
+
+    @staticmethod
+    def extract(node):
+
+        attrs = {
+            'hidden_size': np.array(onnx_attr(node, 'hidden_size', 'i'), dtype=np.int64),
+            'batch_dim': 1,
+            'sequence_dim': 0,
+            'blobs_wrb': True,
+        }
+
+        LSTMSequence.update_node_stat(node, attrs)
+        return __class__.enabled