Add Silero VAD (#313)

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

@@ -0,0 +1,42 @@
+// sherpa-onnx/csrc/vad-model-config.h
+//
+// Copyright (c)  2023  Xiaomi Corporation
+#ifndef SHERPA_ONNX_CSRC_VAD_MODEL_CONFIG_H_
+#define SHERPA_ONNX_CSRC_VAD_MODEL_CONFIG_H_
+
+#include <string>
+
+#include "sherpa-onnx/csrc/parse-options.h"
+#include "sherpa-onnx/csrc/silero-vad-model-config.h"
+
+namespace sherpa_onnx {
+
+struct VadModelConfig {
+  SileroVadModelConfig silero_vad;
+
+  int32_t sample_rate = 16000;
+  int32_t num_threads = 1;
+  std::string provider = "cpu";
+
+  // true to show debug information when loading models
+  bool debug = false;
+
+  VadModelConfig() = default;
+
+  VadModelConfig(const SileroVadModelConfig &silero_vad, int32_t sample_rate,
+                 int32_t num_threads, const std::string &provider, bool debug)
+      : silero_vad(silero_vad),
+        sample_rate(sample_rate),
+        num_threads(num_threads),
+        provider(provider),
+        debug(debug) {}
+
+  void Register(ParseOptions *po);
+  bool Validate() const;
+
+  std::string ToString() const;
+};
+
+}  // namespace sherpa_onnx
+
+#endif  // SHERPA_ONNX_CSRC_VAD_MODEL_CONFIG_H_