43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
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// sherpa-onnx/csrc/rknn/online-transducer-modified-beam-search-decoder-rknn.h
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//
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// Copyright (c) 2025 Xiaomi Corporation
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#ifndef SHERPA_ONNX_CSRC_RKNN_ONLINE_TRANSDUCER_MODIFIED_BEAM_SEARCH_DECODER_RKNN_H_
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#define SHERPA_ONNX_CSRC_RKNN_ONLINE_TRANSDUCER_MODIFIED_BEAM_SEARCH_DECODER_RKNN_H_
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#include <vector>
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#include "sherpa-onnx/csrc/rknn/online-transducer-decoder-rknn.h"
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#include "sherpa-onnx/csrc/rknn/online-zipformer-transducer-model-rknn.h"
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namespace sherpa_onnx {
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class OnlineTransducerModifiedBeamSearchDecoderRknn
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: public OnlineTransducerDecoderRknn {
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public:
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explicit OnlineTransducerModifiedBeamSearchDecoderRknn(
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OnlineZipformerTransducerModelRknn *model, int32_t max_active_paths,
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int32_t unk_id = 2, float blank_penalty = 0.0)
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: model_(model),
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max_active_paths_(max_active_paths),
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unk_id_(unk_id),
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blank_penalty_(blank_penalty) {}
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OnlineTransducerDecoderResultRknn GetEmptyResult() const override;
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void StripLeadingBlanks(OnlineTransducerDecoderResultRknn *r) const override;
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void Decode(std::vector<float> encoder_out,
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OnlineTransducerDecoderResultRknn *result) const override;
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private:
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OnlineZipformerTransducerModelRknn *model_; // Not owned
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int32_t max_active_paths_;
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int32_t unk_id_;
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float blank_penalty_;
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};
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} // namespace sherpa_onnx
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#endif // SHERPA_ONNX_CSRC_RKNN_ONLINE_TRANSDUCER_MODIFIED_BEAM_SEARCH_DECODER_RKNN_H_
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