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Add lm rescore to online-modified-beam-search (#133)

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This commit is contained in:
PF Luo
2023-05-05 21:23:54 +08:00
committed by GitHub
parent 3b9c3db31d
commit 8c6a6768d5
26 changed files with 495 additions and 39 deletions
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1
sherpa-onnx/python/csrc/CMakeLists.txt
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@@ -11,6 +11,7 @@ pybind11_add_module(_sherpa_onnx
offline-recognizer.cc
offline-stream.cc
offline-transducer-model-config.cc
online-lm-config.cc
online-recognizer.cc
online-stream.cc
online-transducer-model-config.cc

23
sherpa-onnx/python/csrc/online-lm-config.cc Normal file
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@@ -0,0 +1,23 @@
// sherpa-onnx/python/csrc/online-lm-config.cc
//
// Copyright (c) 2023 Xiaomi Corporation
#include "sherpa-onnx/python/csrc/online-lm-config.h"
#include <string>
#include "sherpa-onnx//csrc/online-lm-config.h"
namespace sherpa_onnx {
void PybindOnlineLMConfig(py::module *m) {
using PyClass = OnlineLMConfig;
py::class_<PyClass>(*m, "OnlineLMConfig")
.def(py::init<const std::string &, float>(), py::arg("model") = "",
py::arg("scale") = 0.5f)
.def_readwrite("model", &PyClass::model)
.def_readwrite("scale", &PyClass::scale)
.def("__str__", &PyClass::ToString);
}
} // namespace sherpa_onnx

16
sherpa-onnx/python/csrc/online-lm-config.h Normal file
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@@ -0,0 +1,16 @@
// sherpa-onnx/python/csrc/online-lm-config.h
//
// Copyright (c) 2023 Xiaomi Corporation
#ifndef SHERPA_ONNX_PYTHON_CSRC_ONLINE_LM_CONFIG_H_
#define SHERPA_ONNX_PYTHON_CSRC_ONLINE_LM_CONFIG_H_
#include "sherpa-onnx/python/csrc/sherpa-onnx.h"
namespace sherpa_onnx {
void PybindOnlineLMConfig(py::module *m);
}
#endif // SHERPA_ONNX_PYTHON_CSRC_ONLINE_LM_CONFIG_H_

10
sherpa-onnx/python/csrc/online-recognizer.cc
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@@ -21,11 +21,13 @@ static void PybindOnlineRecognizerConfig(py::module *m) {
using PyClass = OnlineRecognizerConfig;
py::class_<PyClass>(*m, "OnlineRecognizerConfig")
.def(py::init<const FeatureExtractorConfig &,
const OnlineTransducerModelConfig &, const EndpointConfig &,
bool, const std::string &, int32_t>(),
const OnlineTransducerModelConfig &, const OnlineLMConfig &,
const EndpointConfig &, bool, const std::string &,
int32_t>(),
py::arg("feat_config"), py::arg("model_config"),
py::arg("endpoint_config"), py::arg("enable_endpoint"),
py::arg("decoding_method"), py::arg("max_active_paths"))
py::arg("lm_config") = OnlineLMConfig(), py::arg("endpoint_config"),
py::arg("enable_endpoint"), py::arg("decoding_method"),
py::arg("max_active_paths"))
.def_readwrite("feat_config", &PyClass::feat_config)
.def_readwrite("model_config", &PyClass::model_config)
.def_readwrite("endpoint_config", &PyClass::endpoint_config)

2
sherpa-onnx/python/csrc/sherpa-onnx.cc
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@@ -11,6 +11,7 @@
#include "sherpa-onnx/python/csrc/offline-model-config.h"
#include "sherpa-onnx/python/csrc/offline-recognizer.h"
#include "sherpa-onnx/python/csrc/offline-stream.h"
#include "sherpa-onnx/python/csrc/online-lm-config.h"
#include "sherpa-onnx/python/csrc/online-recognizer.h"
#include "sherpa-onnx/python/csrc/online-stream.h"
#include "sherpa-onnx/python/csrc/online-transducer-model-config.h"
@@ -22,6 +23,7 @@ PYBIND11_MODULE(_sherpa_onnx, m) {
PybindFeatures(&m);
PybindOnlineTransducerModelConfig(&m);
PybindOnlineLMConfig(&m);
PybindOnlineStream(&m);
PybindEndpoint(&m);
PybindOnlineRecognizer(&m);