1 files changed, 0 insertions, 146 deletions
diff --git a/kaldi_io/src/tools/openfst/include/fst/reweight.h b/kaldi_io/src/tools/openfst/include/fst/reweight.h
deleted file mode 100644
index c051c2a..0000000
--- a/kaldi_io/src/tools/openfst/include/fst/reweight.h
+++ /dev/null
@@ -1,146 +0,0 @@
-// reweight.h
-
-// 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
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-// Copyright 2005-2010 Google, Inc.
-// Author: [email protected] (Cyril Allauzen)
-//
-// \file
-// Function to reweight an FST.
-
-#ifndef FST_LIB_REWEIGHT_H__
-#define FST_LIB_REWEIGHT_H__
-
-#include <vector>
-using std::vector;
-
-#include <fst/mutable-fst.h>
-
-
-namespace fst {
-
-enum ReweightType { REWEIGHT_TO_INITIAL, REWEIGHT_TO_FINAL };
-
-// Reweight FST according to the potentials defined by the POTENTIAL
-// vector in the direction defined by TYPE. Weight needs to be left
-// distributive when reweighting towards the initial state and right
-// distributive when reweighting towards the final states.
-//
-// An arc of weight w, with an origin state of potential p and
-// destination state of potential q, is reweighted by p\wq when
-// reweighting towards the initial state and by pw/q when reweighting
-// towards the final states.
-template <class Arc>
-void Reweight(MutableFst<Arc> *fst,
-              const vector<typename Arc::Weight> &potential,
-              ReweightType type) {
-  typedef typename Arc::Weight Weight;
-
-  if (fst->NumStates() == 0)
-    return;
-
-  if (type == REWEIGHT_TO_FINAL && !(Weight::Properties() & kRightSemiring)) {
-    FSTERROR() << "Reweight: Reweighting to the final states requires "
-               << "Weight to be right distributive: "
-               << Weight::Type();
-    fst->SetProperties(kError, kError);
-    return;
-  }
-
-  if (type == REWEIGHT_TO_INITIAL && !(Weight::Properties() & kLeftSemiring)) {
-    FSTERROR() << "Reweight: Reweighting to the initial state requires "
-               << "Weight to be left distributive: "
-               << Weight::Type();
-    fst->SetProperties(kError, kError);
-    return;
-  }
-
-  StateIterator< MutableFst<Arc> > sit(*fst);
-  for (; !sit.Done(); sit.Next()) {
-    typename Arc::StateId state = sit.Value();
-    if (state == potential.size())
-      break;
-    typename Arc::Weight weight = potential[state];
-    if (weight != Weight::Zero()) {
-      for (MutableArcIterator< MutableFst<Arc> > ait(fst, state);
-           !ait.Done();
-           ait.Next()) {
-        Arc arc = ait.Value();
-        if (arc.nextstate >= potential.size())
-          continue;
-        typename Arc::Weight nextweight = potential[arc.nextstate];
-        if (nextweight == Weight::Zero())
-          continue;
-        if (type == REWEIGHT_TO_INITIAL)
-          arc.weight = Divide(Times(arc.weight, nextweight), weight,
-                              DIVIDE_LEFT);
-        if (type == REWEIGHT_TO_FINAL)
-          arc.weight = Divide(Times(weight, arc.weight), nextweight,
-                              DIVIDE_RIGHT);
-        ait.SetValue(arc);
-      }
-      if (type == REWEIGHT_TO_INITIAL)
-        fst->SetFinal(state, Divide(fst->Final(state), weight, DIVIDE_LEFT));
-    }
-    if (type == REWEIGHT_TO_FINAL)
-      fst->SetFinal(state, Times(weight, fst->Final(state)));
-  }
-
-  // This handles elements past the end of the potentials array.
-  for (; !sit.Done(); sit.Next()) {
-    typename Arc::StateId state = sit.Value();
-    if (type == REWEIGHT_TO_FINAL)
-      fst->SetFinal(state, Times(Weight::Zero(), fst->Final(state)));
-  }
-
-  typename Arc::Weight startweight = fst->Start() < potential.size() ?
-      potential[fst->Start()] : Weight::Zero();
-  if ((startweight != Weight::One()) && (startweight != Weight::Zero())) {
-    if (fst->Properties(kInitialAcyclic, true) & kInitialAcyclic) {
-      typename Arc::StateId state = fst->Start();
-      for (MutableArcIterator< MutableFst<Arc> > ait(fst, state);
-           !ait.Done();
-           ait.Next()) {
-        Arc arc = ait.Value();
-        if (type == REWEIGHT_TO_INITIAL)
-          arc.weight = Times(startweight, arc.weight);
-        else
-          arc.weight = Times(
-              Divide(Weight::One(), startweight, DIVIDE_RIGHT),
-              arc.weight);
-        ait.SetValue(arc);
-      }
-      if (type == REWEIGHT_TO_INITIAL)
-        fst->SetFinal(state, Times(startweight, fst->Final(state)));
-      else
-        fst->SetFinal(state, Times(Divide(Weight::One(), startweight,
-                                          DIVIDE_RIGHT),
-                                   fst->Final(state)));
-    } else {
-      typename Arc::StateId state = fst->AddState();
-      Weight w = type == REWEIGHT_TO_INITIAL ?  startweight :
-                 Divide(Weight::One(), startweight, DIVIDE_RIGHT);
-      Arc arc(0, 0, w, fst->Start());
-      fst->AddArc(state, arc);
-      fst->SetStart(state);
-    }
-  }
-
-  fst->SetProperties(ReweightProperties(
-                         fst->Properties(kFstProperties, false)),
-                     kFstProperties);
-}
-
-}  // namespace fst
-
-#endif  // FST_LIB_REWEIGHT_H_