78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
// sherpa-onnx/csrc/online-recognizer-impl.h
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//
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// Copyright (c) 2023 Xiaomi Corporation
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#ifndef SHERPA_ONNX_CSRC_ONLINE_RECOGNIZER_IMPL_H_
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#define SHERPA_ONNX_CSRC_ONLINE_RECOGNIZER_IMPL_H_
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#include <memory>
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#include <string>
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#include <vector>
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#if __ANDROID_API__ >= 9
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#include "android/asset_manager.h"
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#include "android/asset_manager_jni.h"
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#endif
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#include "kaldifst/csrc/text-normalizer.h"
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#include "sherpa-onnx/csrc/macros.h"
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#include "sherpa-onnx/csrc/online-recognizer.h"
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#include "sherpa-onnx/csrc/online-stream.h"
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namespace sherpa_onnx {
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class OnlineRecognizerImpl {
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public:
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explicit OnlineRecognizerImpl(const OnlineRecognizerConfig &config);
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static std::unique_ptr<OnlineRecognizerImpl> Create(
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const OnlineRecognizerConfig &config);
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#if __ANDROID_API__ >= 9
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OnlineRecognizerImpl(AAssetManager *mgr,
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const OnlineRecognizerConfig &config);
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static std::unique_ptr<OnlineRecognizerImpl> Create(
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AAssetManager *mgr, const OnlineRecognizerConfig &config);
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#endif
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virtual ~OnlineRecognizerImpl() = default;
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virtual std::unique_ptr<OnlineStream> CreateStream() const = 0;
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virtual std::unique_ptr<OnlineStream> CreateStream(
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const std::string &hotwords) const {
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SHERPA_ONNX_LOGE("Only transducer models support contextual biasing.");
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exit(-1);
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}
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virtual bool IsReady(OnlineStream *s) const = 0;
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virtual void WarmpUpRecognizer(int32_t warmup, int32_t mbs) const {
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// ToDo extending to other models
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SHERPA_ONNX_LOGE("Only zipformer2 model supports Warm up for now.");
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exit(-1);
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}
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virtual void DecodeStreams(OnlineStream **ss, int32_t n) const = 0;
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virtual OnlineRecognizerResult GetResult(OnlineStream *s) const = 0;
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virtual bool IsEndpoint(OnlineStream *s) const = 0;
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virtual void Reset(OnlineStream *s) const = 0;
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std::string ApplyInverseTextNormalization(std::string text) const;
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private:
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OnlineRecognizerConfig config_;
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// for inverse text normalization. Used only if
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// config.rule_fsts is not empty or
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// config.rule_fars is not empty
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std::vector<std::unique_ptr<kaldifst::TextNormalizer>> itn_list_;
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};
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} // namespace sherpa_onnx
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#endif // SHERPA_ONNX_CSRC_ONLINE_RECOGNIZER_IMPL_H_
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