Add online punctuation and casing prediction model for English language (#1224)

sherpa-onnx/csrc/sherpa-onnx-online-punctuation.cc

@@ -0,0 +1,73 @@
+// sherpa-onnx/csrc/sherpa-onnx-online-punctuation.cc
+//
+// Copyright (c) 2024 Jian You (jianyou@cisco.com, Cisco Systems)
+
+#include <stdio.h>
+#include <iostream>
+
+#include <chrono>  // NOLINT
+
+#include "sherpa-onnx/csrc/online-punctuation.h"
+#include "sherpa-onnx/csrc/parse-options.h"
+
+int main(int32_t argc, char *argv[]) {
+  const char *kUsageMessage = R"usage(
+Add punctuations to the input text.
+
+The input text can contain English words.
+
+Usage:
+
+Please download the model from: 
+https://huggingface.co/frankyoujian/Edge-Punct-Casing/resolve/main/sherpa-onnx-cnn-bilstm-unigram-bpe-en.7z
+
+./bin/Release/sherpa-onnx-online-punctuation \
+  --cnn-bilstm=/path/to/model.onnx \
+  --bpe-vocab=/path/to/bpe.vocab \
+  "how are you i am fine thank you"
+
+The output text should look like below:
+  "How are you? I am fine. Thank you."
+)usage";
+
+  sherpa_onnx::ParseOptions po(kUsageMessage);
+  sherpa_onnx::OnlinePunctuationConfig config;
+  config.Register(&po);
+  po.Read(argc, argv);
+  if (po.NumArgs() != 1) {
+    fprintf(stderr,
+            "Error: Please provide only 1 positional argument containing the "
+            "input text.\n\n");
+    po.PrintUsage();
+    exit(EXIT_FAILURE);
+  }
+
+  fprintf(stderr, "%s\n", config.ToString().c_str());
+
+  if (!config.Validate()) {
+    fprintf(stderr, "Errors in config!\n");
+    return -1;
+  }
+
+  fprintf(stderr, "Creating OnlinePunctuation ...\n");
+  sherpa_onnx::OnlinePunctuation punct(config);
+  fprintf(stderr, "Started\n");
+  const auto begin = std::chrono::steady_clock::now();
+
+  std::string text = po.GetArg(1);
+
+  std::string text_with_punct_case = punct.AddPunctuationWithCase(text);
+  
+  const auto end = std::chrono::steady_clock::now();
+  fprintf(stderr, "Done\n");
+
+  float elapsed_seconds =
+      std::chrono::duration_cast<std::chrono::milliseconds>(end - begin)
+          .count() /
+      1000.;
+
+  fprintf(stderr, "Num threads: %d\n", config.model.num_threads);
+  fprintf(stderr, "Elapsed seconds: %.3f s\n", elapsed_seconds);
+  fprintf(stderr, "Input text: %s\n", text.c_str());
+  fprintf(stderr, "Output text: %s\n", text_with_punct_case.c_str());
+}