1 files changed, 53 insertions, 0 deletions
diff --git a/kaldi_io/src/tools/openfst/include/fst/script/reweight.h b/kaldi_io/src/tools/openfst/include/fst/script/reweight.h
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+++ b/kaldi_io/src/tools/openfst/include/fst/script/reweight.h
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+
+// 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: jpr@google.com (Jake Ratkiewicz)
+
+#ifndef FST_SCRIPT_REWEIGHT_H_
+#define FST_SCRIPT_REWEIGHT_H_
+
+#include <vector>
+using std::vector;
+
+#include <fst/script/arg-packs.h>
+#include <fst/script/fst-class.h>
+#include <fst/script/weight-class.h>
+#include <fst/reweight.h>
+
+namespace fst {
+namespace script {
+
+typedef args::Package<MutableFstClass *, const vector<WeightClass> &,
+                      ReweightType> ReweightArgs;
+
+template<class Arc>
+void Reweight(ReweightArgs *args) {
+  MutableFst<Arc> *fst = args->arg1->GetMutableFst<Arc>();
+  typedef typename Arc::Weight Weight;
+  vector<Weight> potentials(args->arg2.size());
+
+  for (unsigned i = 0; i < args->arg2.size(); ++i) {
+    potentials[i] = *(args->arg2[i].GetWeight<Weight>());
+  }
+
+  Reweight(fst, potentials, args->arg3);
+}
+
+void Reweight(MutableFstClass *fst, const vector<WeightClass> &potential,
+              ReweightType reweight_type);
+
+}  // namespace script
+}  // namespace fst
+
+#endif  // FST_SCRIPT_REWEIGHT_H_