Add non-streaming ASR (#92)

sherpa-onnx/csrc/offline-transducer-greedy-search-decoder.h

@@ -0,0 +1,29 @@
+// sherpa-onnx/csrc/offline-transducer-greedy-search-decoder.h
+//
+// Copyright (c)  2023  Xiaomi Corporation
+
+#ifndef SHERPA_ONNX_CSRC_OFFLINE_TRANSDUCER_GREEDY_SEARCH_DECODER_H_
+#define SHERPA_ONNX_CSRC_OFFLINE_TRANSDUCER_GREEDY_SEARCH_DECODER_H_
+
+#include <vector>
+
+#include "sherpa-onnx/csrc/offline-transducer-decoder.h"
+#include "sherpa-onnx/csrc/offline-transducer-model.h"
+
+namespace sherpa_onnx {
+
+class OfflineTransducerGreedySearchDecoder : public OfflineTransducerDecoder {
+ public:
+  explicit OfflineTransducerGreedySearchDecoder(OfflineTransducerModel *model)
+      : model_(model) {}
+
+  std::vector<OfflineTransducerDecoderResult> Decode(
+      Ort::Value encoder_out, Ort::Value encoder_out_length) override;
+
+ private:
+  OfflineTransducerModel *model_;  // Not owned
+};
+
+}  // namespace sherpa_onnx
+
+#endif  // SHERPA_ONNX_CSRC_OFFLINE_TRANSDUCER_GREEDY_SEARCH_DECODER_H_