Add Silero VAD (#313)

sherpa-onnx/python/csrc/circular-buffer.cc

@@ -0,0 +1,31 @@
+// sherpa-onnx/python/csrc/circular-buffer.cc
+//
+// Copyright (c)  2023  Xiaomi Corporation
+
+#include "sherpa-onnx/python/csrc/circular-buffer.h"
+
+#include <vector>
+
+#include "sherpa-onnx/csrc/circular-buffer.h"
+
+namespace sherpa_onnx {
+
+void PybindCircularBuffer(py::module *m) {
+  using PyClass = CircularBuffer;
+  py::class_<PyClass>(*m, "CircularBuffer")
+      .def(py::init<int32_t>(), py::arg("capacity"))
+      .def(
+          "push",
+          [](PyClass &self, const std::vector<float> &samples) {
+            self.Push(samples.data(), samples.size());
+          },
+          py::arg("samples"))
+      .def("get", &PyClass::Get, py::arg("start_index"), py::arg("n"))
+      .def("pop", &PyClass::Pop, py::arg("n"))
+      .def("reset", &PyClass::Reset)
+      .def_property_readonly("size", &PyClass::Size)
+      .def_property_readonly("head", &PyClass::Head)
+      .def_property_readonly("tail", &PyClass::Tail);
+}
+
+}  // namespace sherpa_onnx