Merge pull request #1249 from alibaba-damo-academy/main

Shi Xian

2024-01-16 948b68774cebf2b9a2994b7b9b8102f9637a98f3

 runtime/websocket/bin/websocket-server-2pass.cpp

@@ -18,6 +18,7 @@

extern std::unordered_map<std::string, int> hws_map_;
extern int fst_inc_wts_;
extern float global_beam_, lattice_beam_, am_scale_;

context_ptr WebSocketServer::on_tls_init(tls_mode mode,
                                         websocketpp::connection_hdl hdl,
@@ -80,6 +81,19 @@
    jsonresult["timestamp"] = tmp_stamp_msg;
  }

  std::string tmp_stamp_sents = FunASRGetStampSents(result);
  if (tmp_stamp_sents != "") {
    try{
      nlohmann::json json_stamp = nlohmann::json::parse(tmp_stamp_sents);
      LOG(INFO) << "offline stamp_sents : " << json_stamp;
      jsonresult["stamp_sents"] = json_stamp;
    }catch (std::exception const &e)
    {
      LOG(ERROR)<< tmp_stamp_sents << e.what();
      jsonresult["stamp_sents"] = "";
    }
  }

  return jsonresult;
}
// feed buffer to asr engine for decoder
@@ -96,7 +110,8 @@
    bool itn,
    int audio_fs,
    std::string wav_format,
    FUNASR_HANDLE& tpass_online_handle) {
    FUNASR_HANDLE& tpass_online_handle,
    FUNASR_DEC_HANDLE& decoder_handle) {
  // lock for each connection
  if(!tpass_online_handle){
    scoped_lock guard(thread_lock);
@@ -125,7 +140,7 @@
                                       subvector.data(), subvector.size(),
                                       punc_cache, false, audio_fs,
                                       wav_format, (ASR_TYPE)asr_mode_,
                                       hotwords_embedding, itn);
                                       hotwords_embedding, itn, decoder_handle);

        } else {
          scoped_lock guard(thread_lock);
@@ -162,7 +177,7 @@
                                       buffer.data(), buffer.size(), punc_cache,
                                       is_final, audio_fs,
                                       wav_format, (ASR_TYPE)asr_mode_,
                                       hotwords_embedding, itn);
                                       hotwords_embedding, itn, decoder_handle);
        } else {
          scoped_lock guard(thread_lock);
          msg["access_num"]=(int)msg["access_num"]-1;    
@@ -235,6 +250,9 @@
    data_msg->msg["audio_fs"] = 16000; // default is 16k
    data_msg->msg["access_num"] = 0; // the number of access for this object, when it is 0, we can free it saftly
    data_msg->msg["is_eof"]=false; // if this connection is closed
    FUNASR_DEC_HANDLE decoder_handle =
      FunASRWfstDecoderInit(tpass_handle, ASR_TWO_PASS, global_beam_, lattice_beam_, am_scale_);
    data_msg->decoder_handle = decoder_handle;
    data_msg->punc_cache =
        std::make_shared<std::vector<std::vector<std::string>>>(2);
     data_msg->strand_ =   std::make_shared<asio::io_context::strand>(io_decoder_);
@@ -261,6 +279,9 @@
  // finished and avoid access freed tpass_online_handle
  unique_lock guard_decoder(*(data_msg->thread_lock));
  if (data_msg->msg["access_num"]==0 && data_msg->msg["is_eof"]==true) {
    FunWfstDecoderUnloadHwsRes(data_msg->decoder_handle);
    FunASRWfstDecoderUninit(data_msg->decoder_handle);
    data_msg->decoder_handle = nullptr;
    FunTpassOnlineUninit(data_msg->tpass_online_handle);
    data_msg->tpass_online_handle = nullptr;
     data_map.erase(hdl);
@@ -318,7 +339,7 @@
        data_msg->msg["is_eof"]=true;
        guard_decoder.unlock();
        to_remove.push_back(hdl);
        LOG(INFO)<<"connection is closed: "<<e.what();
        LOG(INFO)<<"connection is closed.";
        
      }
      iter++;
@@ -388,7 +409,7 @@
      }

      // hotwords: fst/nn
      if(msg_data->hotwords_embedding == NULL){
      if(msg_data->hotwords_embedding == nullptr){
        std::unordered_map<std::string, int> merged_hws_map;
        std::string nn_hotwords = "";

@@ -425,7 +446,7 @@
            nn_hotwords += " " + pair.first;
            LOG(INFO) << pair.first << " : " << pair.second;
        }
        // FunWfstDecoderLoadHwsRes(msg_data->decoder_handle, fst_inc_wts_, merged_hws_map);
        FunWfstDecoderLoadHwsRes(msg_data->decoder_handle, fst_inc_wts_, merged_hws_map);

        // nn
        std::vector<std::vector<float>> new_hotwords_embedding = CompileHotwordEmbedding(tpass_handle, nn_hotwords, ASR_TWO_PASS);
@@ -437,7 +458,7 @@
        msg_data->msg["audio_fs"] = jsonresult["audio_fs"];
      }
      if (jsonresult.contains("chunk_size")) {
        if (msg_data->tpass_online_handle == NULL) {
        if (msg_data->tpass_online_handle == nullptr) {
          std::vector<int> chunk_size_vec =
              jsonresult["chunk_size"].get<std::vector<int>>();
          // check chunk_size_vec
@@ -459,7 +480,7 @@
      if ((jsonresult["is_speaking"] == false ||
          jsonresult["is_finished"] == true) && 
          msg_data->msg["is_eof"] != true &&
          msg_data->hotwords_embedding != NULL) {
          msg_data->hotwords_embedding != nullptr) {
        LOG(INFO) << "client done";

        // if it is in final message, post the sample_data to decode
@@ -477,7 +498,8 @@
                        msg_data->msg["itn"],
                        msg_data->msg["audio_fs"],
                        msg_data->msg["wav_format"],
                        std::ref(msg_data->tpass_online_handle)));
                        std::ref(msg_data->tpass_online_handle),
                        std::ref(msg_data->decoder_handle)));
            msg_data->msg["access_num"]=(int)(msg_data->msg["access_num"])+1;
        }
        catch (std::exception const &e)
@@ -510,7 +532,7 @@

          try{
            // post to decode
            if (msg_data->msg["is_eof"] != true && msg_data->hotwords_embedding != NULL) {
            if (msg_data->msg["is_eof"] != true && msg_data->hotwords_embedding != nullptr) {
              std::vector<std::vector<float>> hotwords_embedding_(*(msg_data->hotwords_embedding));
              msg_data->strand_->post(
                        std::bind(&WebSocketServer::do_decoder, this,
@@ -524,7 +546,8 @@
                                  msg_data->msg["itn"],
                                  msg_data->msg["audio_fs"],
                                  msg_data->msg["wav_format"],
                                  std::ref(msg_data->tpass_online_handle)));
                                  std::ref(msg_data->tpass_online_handle),
                                  std::ref(msg_data->decoder_handle)));
              msg_data->msg["access_num"]=(int)(msg_data->msg["access_num"])+1;
            }
          }