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enginex-mr_series-sherpa-onnx/sherpa-onnx/python/csrc/keyword-spotter.cc
Wei Kang 734bbd91dc Add Python API for keyword spotting (#576)
* Add alsa & microphone support for keyword spotting

* Add python wrapper
2024-03-01 09:31:11 +08:00

83 lines
3.2 KiB
C++

// sherpa-onnx/python/csrc/keyword-spotter.cc
//
// Copyright (c) 2024 Xiaomi Corporation
#include "sherpa-onnx/python/csrc/keyword-spotter.h"
#include <string>
#include <vector>
#include "sherpa-onnx/csrc/keyword-spotter.h"
namespace sherpa_onnx {
static void PybindKeywordResult(py::module *m) {
using PyClass = KeywordResult;
py::class_<PyClass>(*m, "KeywordResult")
.def_property_readonly(
"keyword",
[](PyClass &self) -> py::str {
return py::str(PyUnicode_DecodeUTF8(self.keyword.c_str(),
self.keyword.size(), "ignore"));
})
.def_property_readonly(
"tokens",
[](PyClass &self) -> std::vector<std::string> { return self.tokens; })
.def_property_readonly(
"timestamps",
[](PyClass &self) -> std::vector<float> { return self.timestamps; });
}
static void PybindKeywordSpotterConfig(py::module *m) {
using PyClass = KeywordSpotterConfig;
py::class_<PyClass>(*m, "KeywordSpotterConfig")
.def(py::init<const FeatureExtractorConfig &, const OnlineModelConfig &,
int32_t, int32_t, float, float, const std::string &>(),
py::arg("feat_config"), py::arg("model_config"),
py::arg("max_active_paths") = 4, py::arg("num_trailing_blanks") = 1,
py::arg("keywords_score") = 1.0,
py::arg("keywords_threshold") = 0.25, py::arg("keywords_file") = "")
.def_readwrite("feat_config", &PyClass::feat_config)
.def_readwrite("model_config", &PyClass::model_config)
.def_readwrite("max_active_paths", &PyClass::max_active_paths)
.def_readwrite("num_trailing_blanks", &PyClass::num_trailing_blanks)
.def_readwrite("keywords_score", &PyClass::keywords_score)
.def_readwrite("keywords_threshold", &PyClass::keywords_threshold)
.def_readwrite("keywords_file", &PyClass::keywords_file)
.def("__str__", &PyClass::ToString);
}
void PybindKeywordSpotter(py::module *m) {
PybindKeywordResult(m);
PybindKeywordSpotterConfig(m);
using PyClass = KeywordSpotter;
py::class_<PyClass>(*m, "KeywordSpotter")
.def(py::init<const KeywordSpotterConfig &>(), py::arg("config"),
py::call_guard<py::gil_scoped_release>())
.def(
"create_stream",
[](const PyClass &self) { return self.CreateStream(); },
py::call_guard<py::gil_scoped_release>())
.def(
"create_stream",
[](PyClass &self, const std::string &keywords) {
return self.CreateStream(keywords);
},
py::arg("keywords"), py::call_guard<py::gil_scoped_release>())
.def("is_ready", &PyClass::IsReady,
py::call_guard<py::gil_scoped_release>())
.def("decode_stream", &PyClass::DecodeStream,
py::call_guard<py::gil_scoped_release>())
.def(
"decode_streams",
[](PyClass &self, std::vector<OnlineStream *> ss) {
self.DecodeStreams(ss.data(), ss.size());
},
py::call_guard<py::gil_scoped_release>())
.def("get_result", &PyClass::GetResult,
py::call_guard<py::gil_scoped_release>());
}
} // namespace sherpa_onnx