From 3b0526e7be3565c42007313b90a018a2f8c8dff1 Mon Sep 17 00:00:00 2001
From: zhifu gao <zhifu.gzf@alibaba-inc.com>
Date: 星期二, 04 六月 2024 11:21:36 +0800
Subject: [PATCH] update with main (#1783)

---
 runtime/onnxruntime/src/paraformer.cpp |  185 +++++++++++++++++++++++++++-------------------
 1 files changed, 109 insertions(+), 76 deletions(-)

diff --git a/runtime/onnxruntime/src/paraformer.cpp b/runtime/onnxruntime/src/paraformer.cpp
index b6babfe..1f1d48f 100644
--- a/runtime/onnxruntime/src/paraformer.cpp
+++ b/runtime/onnxruntime/src/paraformer.cpp
@@ -18,11 +18,12 @@
 }
 
 // offline
-void Paraformer::InitAsr(const std::string &am_model, const std::string &am_cmvn, const std::string &am_config, int thread_num){
+void Paraformer::InitAsr(const std::string &am_model, const std::string &am_cmvn, const std::string &am_config, const std::string &token_file, int thread_num){
+    LoadConfigFromYaml(am_config.c_str());
     // knf options
     fbank_opts_.frame_opts.dither = 0;
     fbank_opts_.mel_opts.num_bins = n_mels;
-    fbank_opts_.frame_opts.samp_freq = MODEL_SAMPLE_RATE;
+    fbank_opts_.frame_opts.samp_freq = asr_sample_rate;
     fbank_opts_.frame_opts.window_type = window_type;
     fbank_opts_.frame_opts.frame_shift_ms = frame_shift;
     fbank_opts_.frame_opts.frame_length_ms = frame_length;
@@ -64,20 +65,19 @@
         m_szInputNames.push_back(item.c_str());
     for (auto& item : m_strOutputNames)
         m_szOutputNames.push_back(item.c_str());
-    vocab = new Vocab(am_config.c_str());
-    LoadConfigFromYaml(am_config.c_str());
-	phone_set_ = new PhoneSet(am_config.c_str());
+    vocab = new Vocab(token_file.c_str());
+	phone_set_ = new PhoneSet(token_file.c_str());
     LoadCmvn(am_cmvn.c_str());
 }
 
 // online
-void Paraformer::InitAsr(const std::string &en_model, const std::string &de_model, const std::string &am_cmvn, const std::string &am_config, int thread_num){
+void Paraformer::InitAsr(const std::string &en_model, const std::string &de_model, const std::string &am_cmvn, const std::string &am_config, const std::string &token_file, int thread_num){
     
     LoadOnlineConfigFromYaml(am_config.c_str());
     // knf options
     fbank_opts_.frame_opts.dither = 0;
     fbank_opts_.mel_opts.num_bins = n_mels;
-    fbank_opts_.frame_opts.samp_freq = MODEL_SAMPLE_RATE;
+    fbank_opts_.frame_opts.samp_freq = asr_sample_rate;
     fbank_opts_.frame_opts.window_type = window_type;
     fbank_opts_.frame_opts.frame_shift_ms = frame_shift;
     fbank_opts_.frame_opts.frame_length_ms = frame_length;
@@ -143,15 +143,15 @@
     for (auto& item : de_strOutputNames)
         de_szOutputNames_.push_back(item.c_str());
 
-    vocab = new Vocab(am_config.c_str());
-    phone_set_ = new PhoneSet(am_config.c_str());
+    vocab = new Vocab(token_file.c_str());
+    phone_set_ = new PhoneSet(token_file.c_str());
     LoadCmvn(am_cmvn.c_str());
 }
 
 // 2pass
-void Paraformer::InitAsr(const std::string &am_model, const std::string &en_model, const std::string &de_model, const std::string &am_cmvn, const std::string &am_config, int thread_num){
+void Paraformer::InitAsr(const std::string &am_model, const std::string &en_model, const std::string &de_model, const std::string &am_cmvn, const std::string &am_config, const std::string &token_file, int thread_num){
     // online
-    InitAsr(en_model, de_model, am_cmvn, am_config, thread_num);
+    InitAsr(en_model, de_model, am_cmvn, am_config, token_file, thread_num);
 
     // offline
     try {
@@ -187,13 +187,17 @@
 }
 
 void Paraformer::InitLm(const std::string &lm_file, 
-                        const std::string &lm_cfg_file) {
+                        const std::string &lm_cfg_file, 
+                        const std::string &lex_file) {
     try {
         lm_ = std::shared_ptr<fst::Fst<fst::StdArc>>(
             fst::Fst<fst::StdArc>::Read(lm_file));
-        if (vocab) { delete vocab; }
-        vocab = new Vocab(lm_cfg_file.c_str());
-        LOG(INFO) << "Successfully load lm file " << lm_file;
+        if (lm_){
+            lm_vocab = new Vocab(lm_cfg_file.c_str(), lex_file.c_str());
+            LOG(INFO) << "Successfully load lm file " << lm_file;
+        }else{
+            LOG(ERROR) << "Failed to load lm file " << lm_file;
+        }
     } catch (std::exception const &e) {
         LOG(ERROR) << "Error when load lm file: " << e.what();
         exit(0);
@@ -211,6 +215,9 @@
     }
 
     try{
+        YAML::Node frontend_conf = config["frontend_conf"];
+        this->asr_sample_rate = frontend_conf["fs"].as<int>();
+
         YAML::Node lang_conf = config["lang"];
         if (lang_conf.IsDefined()){
             language = lang_conf.as<string>();
@@ -252,6 +259,9 @@
 
         this->cif_threshold = predictor_conf["threshold"].as<double>();
         this->tail_alphas = predictor_conf["tail_threshold"].as<double>();
+
+        this->asr_sample_rate = frontend_conf["fs"].as<int>();
+
 
     }catch(exception const &e){
         LOG(ERROR) << "Error when load argument from vad config YAML.";
@@ -296,10 +306,18 @@
 
 Paraformer::~Paraformer()
 {
-    if(vocab)
+    if(vocab){
         delete vocab;
-    if(seg_dict)
+    }
+    if(lm_vocab){
+        delete lm_vocab;
+    }
+    if(seg_dict){
         delete seg_dict;
+    }
+    if(phone_set_){
+        delete phone_set_;
+    }
 }
 
 void Paraformer::StartUtterance()
@@ -314,30 +332,20 @@
 {
 }
 
-vector<float> Paraformer::FbankKaldi(float sample_rate, const float* waves, int len) {
+void Paraformer::FbankKaldi(float sample_rate, const float* waves, int len, std::vector<std::vector<float>> &asr_feats) {
     knf::OnlineFbank fbank_(fbank_opts_);
     std::vector<float> buf(len);
     for (int32_t i = 0; i != len; ++i) {
         buf[i] = waves[i] * 32768;
     }
     fbank_.AcceptWaveform(sample_rate, buf.data(), buf.size());
-    //fbank_->InputFinished();
+
     int32_t frames = fbank_.NumFramesReady();
-    int32_t feature_dim = fbank_opts_.mel_opts.num_bins;
-    vector<float> features(frames * feature_dim);
-    float *p = features.data();
-    //std::cout << "samples " << len << std::endl;
-    //std::cout << "fbank frames " << frames << std::endl;
-    //std::cout << "fbank dim " << feature_dim << std::endl;
-    //std::cout << "feature size " << features.size() << std::endl;
-
     for (int32_t i = 0; i != frames; ++i) {
-        const float *f = fbank_.GetFrame(i);
-        std::copy(f, f + feature_dim, p);
-        p += feature_dim;
+        const float *frame = fbank_.GetFrame(i);
+        std::vector<float> frame_vector(frame, frame + fbank_opts_.mel_opts.num_bins);
+        asr_feats.emplace_back(frame_vector);
     }
-
-    return features;
 }
 
 void Paraformer::LoadCmvn(const char *filename)
@@ -412,56 +420,74 @@
   return wfst_decoder->FinalizeDecode(is_stamp, us_alphas, us_cif_peak);
 }
 
-vector<float> Paraformer::ApplyLfr(const std::vector<float> &in) 
-{
-    int32_t in_feat_dim = fbank_opts_.mel_opts.num_bins;
-    int32_t in_num_frames = in.size() / in_feat_dim;
-    int32_t out_num_frames =
-        (in_num_frames - lfr_m) / lfr_n + 1;
-    int32_t out_feat_dim = in_feat_dim * lfr_m;
+void Paraformer::LfrCmvn(std::vector<std::vector<float>> &asr_feats) {
 
-    std::vector<float> out(out_num_frames * out_feat_dim);
+    std::vector<std::vector<float>> out_feats;
+    int T = asr_feats.size();
+    int T_lrf = ceil(1.0 * T / lfr_n);
 
-    const float *p_in = in.data();
-    float *p_out = out.data();
-
-    for (int32_t i = 0; i != out_num_frames; ++i) {
-      std::copy(p_in, p_in + out_feat_dim, p_out);
-
-      p_out += out_feat_dim;
-      p_in += lfr_n * in_feat_dim;
+    // Pad frames at start(copy first frame)
+    for (int i = 0; i < (lfr_m - 1) / 2; i++) {
+        asr_feats.insert(asr_feats.begin(), asr_feats[0]);
     }
-
-    return out;
-  }
-
-  void Paraformer::ApplyCmvn(std::vector<float> *v)
-  {
-    int32_t dim = means_list_.size();
-    int32_t num_frames = v->size() / dim;
-
-    float *p = v->data();
-
-    for (int32_t i = 0; i != num_frames; ++i) {
-      for (int32_t k = 0; k != dim; ++k) {
-        p[k] = (p[k] + means_list_[k]) * vars_list_[k];
-      }
-
-      p += dim;
+    // Merge lfr_m frames as one,lfr_n frames per window
+    T = T + (lfr_m - 1) / 2;
+    std::vector<float> p;
+    for (int i = 0; i < T_lrf; i++) {
+        if (lfr_m <= T - i * lfr_n) {
+            for (int j = 0; j < lfr_m; j++) {
+                p.insert(p.end(), asr_feats[i * lfr_n + j].begin(), asr_feats[i * lfr_n + j].end());
+            }
+            out_feats.emplace_back(p);
+            p.clear();
+        } else {
+            // Fill to lfr_m frames at last window if less than lfr_m frames  (copy last frame)
+            int num_padding = lfr_m - (T - i * lfr_n);
+            for (int j = 0; j < (asr_feats.size() - i * lfr_n); j++) {
+                p.insert(p.end(), asr_feats[i * lfr_n + j].begin(), asr_feats[i * lfr_n + j].end());
+            }
+            for (int j = 0; j < num_padding; j++) {
+                p.insert(p.end(), asr_feats[asr_feats.size() - 1].begin(), asr_feats[asr_feats.size() - 1].end());
+            }
+            out_feats.emplace_back(p);
+            p.clear();
+        }
     }
-  }
+    // Apply cmvn
+    for (auto &out_feat: out_feats) {
+        for (int j = 0; j < means_list_.size(); j++) {
+            out_feat[j] = (out_feat[j] + means_list_[j]) * vars_list_[j];
+        }
+    }
+    asr_feats = out_feats;
+}
 
-string Paraformer::Forward(float* din, int len, bool input_finished, const std::vector<std::vector<float>> &hw_emb, void* decoder_handle)
+std::vector<std::string> Paraformer::Forward(float** din, int* len, bool input_finished, const std::vector<std::vector<float>> &hw_emb, void* decoder_handle, int batch_in)
 {
+    std::vector<std::string> results;
+    string result="";
     WfstDecoder* wfst_decoder = (WfstDecoder*)decoder_handle;
     int32_t in_feat_dim = fbank_opts_.mel_opts.num_bins;
-    std::vector<float> wav_feats = FbankKaldi(MODEL_SAMPLE_RATE, din, len);
-    wav_feats = ApplyLfr(wav_feats);
-    ApplyCmvn(&wav_feats);
 
+    if(batch_in != 1){
+        results.push_back(result);
+        return results;
+    }
+
+    std::vector<std::vector<float>> asr_feats;
+    FbankKaldi(asr_sample_rate, din[0], len[0], asr_feats);
+    if(asr_feats.size() == 0){
+        results.push_back(result);
+        return results;
+    }
+    LfrCmvn(asr_feats);
     int32_t feat_dim = lfr_m*in_feat_dim;
-    int32_t num_frames = wav_feats.size() / feat_dim;
-    //std::cout << "feat in: " << num_frames << " " << feat_dim << std::endl;
+    int32_t num_frames = asr_feats.size();
+
+    std::vector<float> wav_feats;
+    for (const auto &frame_feat: asr_feats) {
+        wav_feats.insert(wav_feats.end(), frame_feat.begin(), frame_feat.end());
+    }
 
 #ifdef _WIN_X86
         Ort::MemoryInfo m_memoryInfo = Ort::MemoryInfo::CreateCpu(OrtDeviceAllocator, OrtMemTypeCPU);
@@ -491,7 +517,8 @@
         if (use_hotword) {
             if(hw_emb.size()<=0){
                 LOG(ERROR) << "hw_emb is null";
-                return "";
+                results.push_back(result);
+                return results;
             }
             //PrintMat(hw_emb, "input_clas_emb");
             const int64_t hotword_shape[3] = {1, static_cast<int64_t>(hw_emb.size()), static_cast<int64_t>(hw_emb[0].size())};
@@ -508,10 +535,10 @@
     }catch (std::exception const &e)
     {
         LOG(ERROR)<<e.what();
-        return "";
+        results.push_back(result);
+        return results;
     }
 
-    string result="";
     try {
         auto outputTensor = m_session_->Run(Ort::RunOptions{nullptr}, m_szInputNames.data(), input_onnx.data(), input_onnx.size(), m_szOutputNames.data(), m_szOutputNames.size());
         std::vector<int64_t> outputShape = outputTensor[0].GetTensorTypeAndShapeInfo().GetShape();
@@ -559,7 +586,8 @@
         LOG(ERROR)<<e.what();
     }
 
-    return result;
+    results.push_back(result);
+    return results;
 }
 
 
@@ -671,6 +699,11 @@
     return vocab;
 }
 
+Vocab* Paraformer::GetLmVocab()
+{
+    return lm_vocab;
+}
+
 PhoneSet* Paraformer::GetPhoneSet()
 {
     return phone_set_;

--
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