Add online LSTM transducer model (#25)

sherpa-onnx/csrc/decode.h

@@ -1,27 +1,13 @@
-/**
- * Copyright (c)  2022  Xiaomi Corporation (authors: Fangjun Kuang)
- *
- * See LICENSE for clarification regarding multiple authors
- *
- * 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.
- */
+// sherpa/csrc/decode.h
+//
+// Copyright (c)  2023  Xiaomi Corporation
 
 #ifndef SHERPA_ONNX_CSRC_DECODE_H_
 #define SHERPA_ONNX_CSRC_DECODE_H_
 
 #include <vector>
 
-#include "sherpa-onnx/csrc/rnnt-model.h"
+#include "sherpa-onnx/csrc/online-transducer-model.h"
 
 namespace sherpa_onnx {
 
@@ -32,8 +18,8 @@ namespace sherpa_onnx {
  * @param model  The RnntModel
  * @param encoder_out  Its shape is (1, num_frames, encoder_out_dim).
  */
-std::vector<int32_t> GreedySearch(RnntModel &model,  // NOLINT
-                                  const Ort::Value &encoder_out);
+void GreedySearch(OnlineTransducerModel *model, Ort::Value encoder_out,
+                  std::vector<int64_t> *hyp);
 
 }  // namespace sherpa_onnx