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

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

@@ -0,0 +1,28 @@
+// sherpa-onnx/csrc/speaker-embedding-extractor-model-meta-data.h
+//
+// Copyright (c)  2023  Xiaomi Corporation
+#ifndef SHERPA_ONNX_CSRC_SPEAKER_EMBEDDING_EXTRACTOR_MODEL_META_DATA_H_
+#define SHERPA_ONNX_CSRC_SPEAKER_EMBEDDING_EXTRACTOR_MODEL_META_DATA_H_
+
+#include <cstdint>
+#include <string>
+
+namespace sherpa_onnx {
+
+struct SpeakerEmbeddingExtractorModelMetaData {
+  int32_t output_dim = 0;
+  int32_t sample_rate = 0;
+
+  // for wespeaker models, it is 0;
+  // for 3d-speaker models, it is 1
+  int32_t normalize_samples = 1;
+
+  // Chinese, English, etc.
+  std::string language;
+
+  // for 3d-speaker, it is global-mean
+  std::string feature_normalize_type;
+};
+
+}  // namespace sherpa_onnx
+#endif  // SHERPA_ONNX_CSRC_SPEAKER_EMBEDDING_EXTRACTOR_MODEL_META_DATA_H_