Add C++ runtime for models from 3d-speaker (#523)

sherpa-onnx/csrc/speaker-embedding-extractor-model.h

@@ -0,0 +1,37 @@
+// sherpa-onnx/csrc/speaker-embedding-extractor-model.h
+//
+// Copyright (c)  2023-2024  Xiaomi Corporation
+#ifndef SHERPA_ONNX_CSRC_SPEAKER_EMBEDDING_EXTRACTOR_MODEL_H_
+#define SHERPA_ONNX_CSRC_SPEAKER_EMBEDDING_EXTRACTOR_MODEL_H_
+
+#include <memory>
+
+#include "onnxruntime_cxx_api.h"  // NOLINT
+#include "sherpa-onnx/csrc/speaker-embedding-extractor-model-meta-data.h"
+#include "sherpa-onnx/csrc/speaker-embedding-extractor.h"
+
+namespace sherpa_onnx {
+
+class SpeakerEmbeddingExtractorModel {
+ public:
+  explicit SpeakerEmbeddingExtractorModel(
+      const SpeakerEmbeddingExtractorConfig &config);
+
+  ~SpeakerEmbeddingExtractorModel();
+
+  const SpeakerEmbeddingExtractorModelMetaData &GetMetaData() const;
+
+  /**
+   * @param x A float32 tensor of shape (N, T, C)
+   * @return A float32 tensor of shape (N, C)
+   */
+  Ort::Value Compute(Ort::Value x) const;
+
+ private:
+  class Impl;
+  std::unique_ptr<Impl> impl_;
+};
+
+}  // namespace sherpa_onnx
+
+#endif  // SHERPA_ONNX_CSRC_SPEAKER_EMBEDDING_EXTRACTOR_MODEL_H_