Add Silero VAD (#313)

sherpa-onnx/csrc/vad-model-config.cc

@@ -0,0 +1,44 @@
+// sherpa-onnx/csrc/vad-model-config.cc
+//
+// Copyright (c)  2023  Xiaomi Corporation
+
+#include "sherpa-onnx/csrc/vad-model-config.h"
+
+#include <sstream>
+#include <string>
+
+namespace sherpa_onnx {
+
+void VadModelConfig::Register(ParseOptions *po) {
+  silero_vad.Register(po);
+
+  po->Register("vad-sample-rate", &sample_rate,
+               "Sample rate expected by the VAD model");
+
+  po->Register("vad-num-threads", &num_threads,
+               "Number of threads to run the VAD model");
+
+  po->Register("vad-provider", &provider,
+               "Specify a provider to run the VAD model. Supported values: "
+               "cpu, cuda, coreml");
+
+  po->Register("vad-debug", &debug,
+               "true to display debug information when loading vad models");
+}
+
+bool VadModelConfig::Validate() const { return silero_vad.Validate(); }
+
+std::string VadModelConfig::ToString() const {
+  std::ostringstream os;
+
+  os << "VadModelConfig(";
+  os << "silero_vad=" << silero_vad.ToString() << ", ";
+  os << "sample_rate=" << sample_rate << ", ";
+  os << "num_threads=" << num_threads << ", ";
+  os << "provider=\"" << provider << "\", ";
+  os << "debug=" << (debug ? "True" : "False") << ")";
+
+  return os.str();
+}
+
+}  // namespace sherpa_onnx