Adding post-to-phone-post.cc

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@1668 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8

src/bin/Makefile

@@ -17,7 +17,7 @@ BINFILES = align-equal align-equal-compiled acc-tree-stats \
         copy-vector copy-int-vector sum-post sum-matrices draw-tree \
         copy-int-vector-vector thresh-post \
         align-mapped align-compiled-mapped latgen-faster-mapped \
-        hmm-info pdf-to-counts analyze-counts extract-ctx
+        hmm-info pdf-to-counts analyze-counts extract-ctx post-to-phone-post
 
 OBJFILES = 
 

src/bin/acc-lda.cc

@@ -69,7 +69,7 @@ int main(int argc, char *argv[]) {
     for (;!feature_reader.Done(); feature_reader.Next()) {
       std::string utt = feature_reader.Key();
       if (!posterior_reader.HasKey(utt)) {
-        KALDI_WARN << "No feaures for utterance " << utt;
+        KALDI_WARN << "No features for utterance " << utt;
         num_fail++;
         continue;
       }

src/bin/post-to-phone-post.cc

+// bin/post-to-phone-post.cc
+
+// Copyright 2012  Johns Hopkins University (author: Daniel Povey)
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+// WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
+// MERCHANTABLITY OR NON-INFRINGEMENT.
+// See the Apache 2 License for the specific language governing permissions and
+// limitations under the License.
+
+
+#include "base/kaldi-common.h"
+#include "util/common-utils.h"
+#include "hmm/transition-model.h"
+
+int main(int argc, char *argv[]) {
+  try {
+    using namespace kaldi;
+    typedef kaldi::int32 int32;  
+
+    const char *usage =
+        "Convert posteriors to phone-level posteriors\n"
+        "\n"
+        "Usage: post-to-phone-post [options] <model> <post-rspecifier> <phone-post-wspecifier>\n"
+        " e.g.: post-to-phone-post --binary=false 1.mdl \"ark:ali-to-post 1.ali|\" ark,t:-\n";
+    
+    ParseOptions po(usage);
+
+    po.Read(argc, argv);
+
+    if (po.NumArgs() != 3) {
+      po.PrintUsage();
+      exit(1);
+    }
+      
+    std::string model_rxfilename = po.GetArg(1),
+        post_rspecifier = po.GetArg(2),
+        phone_post_wspecifier = po.GetArg(3);
+
+    kaldi::SequentialPosteriorReader posterior_reader(post_rspecifier);
+    kaldi::PosteriorWriter posterior_writer(phone_post_wspecifier);
+
+    TransitionModel trans_model;    
+    {
+      bool binary_in;
+      Input ki(model_rxfilename, &binary_in);
+      trans_model.Read(ki.Stream(), binary_in);
+    }
+    int32 num_done = 0;      
+    
+    for (; !posterior_reader.Done(); posterior_reader.Next()) {
+      const kaldi::Posterior &posterior = posterior_reader.Value();
+      int32 num_frames = static_cast<int32>(posterior.size());
+      kaldi::Posterior phone_posterior(num_frames);
+      for (int32 i = 0; i < num_frames; i++) {
+        std::map<int32, BaseFloat> phone_to_post;
+        
+        for (int32 j = 0; j < static_cast<int32>(posterior[i].size()); j++) {
+          int32 tid = posterior[i][j].first,
+              phone = trans_model.TransitionIdToPhone(tid);
+          BaseFloat post = posterior[i][j].second;
+          if (phone_to_post.count(phone) == 0)
+            phone_to_post[phone] = post;
+          else
+            phone_to_post[phone] += post;
+        }
+        phone_posterior[i].reserve(phone_to_post.size());
+        for (std::map<int32, BaseFloat>::const_iterator iter =
+                 phone_to_post.begin(); iter != phone_to_post.end(); ++iter) {
+          phone_posterior[i].push_back(
+              std::make_pair<int32, BaseFloat>(iter->first, iter->second));
+        }
+      }
+      posterior_writer.Write(posterior_reader.Key(), phone_posterior);
+      num_done++;
+    }
+              
+    KALDI_LOG << "Done converting posterior to phone posteriors for "
+              << num_done << " utterances.";
+    return (num_done != 0 ? 0 : 1);
+  } catch(const std::exception &e) {
+    std::cerr << e.what();
+    return -1;
+  }
+}
+