Add C++ runtime for Matcha-TTS (#1627)

sherpa-onnx/csrc/offline-tts-matcha-model-config.h

@@ -0,0 +1,56 @@
+// sherpa-onnx/csrc/offline-tts-matcha-model-config.h
+//
+// Copyright (c)  2024  Xiaomi Corporation
+
+#ifndef SHERPA_ONNX_CSRC_OFFLINE_TTS_MATCHA_MODEL_CONFIG_H_
+#define SHERPA_ONNX_CSRC_OFFLINE_TTS_MATCHA_MODEL_CONFIG_H_
+
+#include <string>
+
+#include "sherpa-onnx/csrc/parse-options.h"
+
+namespace sherpa_onnx {
+
+struct OfflineTtsMatchaModelConfig {
+  std::string acoustic_model;
+  std::string vocoder;
+  std::string lexicon;
+  std::string tokens;
+
+  // If data_dir is given, lexicon is ignored
+  // data_dir is for piper-phonemizer, which uses espeak-ng
+  std::string data_dir;
+
+  // Used for Chinese TTS models using jieba
+  std::string dict_dir;
+
+  float noise_scale = 1;
+  float length_scale = 1;
+
+  OfflineTtsMatchaModelConfig() = default;
+
+  OfflineTtsMatchaModelConfig(const std::string &acoustic_model,
+                              const std::string &vocoder,
+                              const std::string &lexicon,
+                              const std::string &tokens,
+                              const std::string &data_dir,
+                              const std::string &dict_dir,
+                              float noise_scale = 1.0, float length_scale = 1)
+      : acoustic_model(acoustic_model),
+        vocoder(vocoder),
+        lexicon(lexicon),
+        tokens(tokens),
+        data_dir(data_dir),
+        dict_dir(dict_dir),
+        noise_scale(noise_scale),
+        length_scale(length_scale) {}
+
+  void Register(ParseOptions *po);
+  bool Validate() const;
+
+  std::string ToString() const;
+};
+
+}  // namespace sherpa_onnx
+
+#endif  // SHERPA_ONNX_CSRC_OFFLINE_TTS_MATCHA_MODEL_CONFIG_H_