Add runtime support for wespeaker models (#516)

sherpa-onnx/python/csrc/speaker-embedding-extractor.cc

@@ -0,0 +1,44 @@
+// sherpa-onnx/python/csrc/speaker-embedding-extractor.cc
+//
+// Copyright (c)  2023  Xiaomi Corporation
+
+#include "sherpa-onnx/python/csrc/speaker-embedding-extractor.h"
+
+#include <string>
+
+#include "sherpa-onnx/csrc/speaker-embedding-extractor.h"
+
+namespace sherpa_onnx {
+
+static void PybindSpeakerEmbeddingExtractorConfig(py::module *m) {
+  using PyClass = SpeakerEmbeddingExtractorConfig;
+  py::class_<PyClass>(*m, "SpeakerEmbeddingExtractorConfig")
+      .def(py::init<>())
+      .def(py::init<const std::string &, int32_t, bool, const std::string>(),
+           py::arg("model"), py::arg("num_threads") = 1,
+           py::arg("debug") = false, py::arg("provider") = "cpu")
+      .def_readwrite("model", &PyClass::model)
+      .def_readwrite("num_threads", &PyClass::num_threads)
+      .def_readwrite("debug", &PyClass::debug)
+      .def_readwrite("provider", &PyClass::provider)
+      .def("validate", &PyClass::Validate)
+      .def("__str__", &PyClass::ToString);
+}
+
+void PybindSpeakerEmbeddingExtractor(py::module *m) {
+  PybindSpeakerEmbeddingExtractorConfig(m);
+
+  using PyClass = SpeakerEmbeddingExtractor;
+  py::class_<PyClass>(*m, "SpeakerEmbeddingExtractor")
+      .def(py::init<const SpeakerEmbeddingExtractorConfig &>(),
+           py::arg("config"), py::call_guard<py::gil_scoped_release>())
+      .def_property_readonly("dim", &PyClass::Dim)
+      .def("create_stream", &PyClass::CreateStream,
+           py::call_guard<py::gil_scoped_release>())
+      .def("compute", &PyClass::Compute,
+           py::call_guard<py::gil_scoped_release>())
+      .def("is_ready", &PyClass::IsReady,
+           py::call_guard<py::gil_scoped_release>());
+}
+
+}  // namespace sherpa_onnx