Support streaming paraformer (#263)

sherpa-onnx/csrc/online-paraformer-model-config.cc

@@ -0,0 +1,43 @@
+// sherpa-onnx/csrc/online-paraformer-model-config.cc
+//
+// Copyright (c)  2023  Xiaomi Corporation
+
+#include "sherpa-onnx/csrc/online-paraformer-model-config.h"
+
+#include "sherpa-onnx/csrc/file-utils.h"
+#include "sherpa-onnx/csrc/macros.h"
+
+namespace sherpa_onnx {
+
+void OnlineParaformerModelConfig::Register(ParseOptions *po) {
+  po->Register("paraformer-encoder", &encoder,
+               "Path to encoder.onnx of paraformer.");
+  po->Register("paraformer-decoder", &decoder,
+               "Path to decoder.onnx of paraformer.");
+}
+
+bool OnlineParaformerModelConfig::Validate() const {
+  if (!FileExists(encoder)) {
+    SHERPA_ONNX_LOGE("Paraformer encoder %s does not exist", encoder.c_str());
+    return false;
+  }
+
+  if (!FileExists(decoder)) {
+    SHERPA_ONNX_LOGE("Paraformer decoder %s does not exist", decoder.c_str());
+    return false;
+  }
+
+  return true;
+}
+
+std::string OnlineParaformerModelConfig::ToString() const {
+  std::ostringstream os;
+
+  os << "OnlineParaformerModelConfig(";
+  os << "encoder=\"" << encoder << "\", ";
+  os << "decoder=\"" << decoder << "\")";
+
+  return os.str();
+}
+
+}  // namespace sherpa_onnx