FST  openfst-1.8.3
OpenFst Library
reweight.h
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2 //
3 // Licensed under the Apache License, Version 2.0 (the 'License');
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
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15 // See www.openfst.org for extensive documentation on this weighted
16 // finite-state transducer library.
17 
18 #ifndef FST_SCRIPT_REWEIGHT_H_
19 #define FST_SCRIPT_REWEIGHT_H_
20 
21 #include <tuple>
22 #include <vector>
23 
24 #include <fst/mutable-fst.h>
25 #include <fst/reweight.h>
26 #include <fst/script/fst-class.h>
27 #include <fst/script/script-impl.h>
29 
30 namespace fst {
31 namespace script {
32 
33 using FstReweightArgs =
34  std::tuple<MutableFstClass *, const std::vector<WeightClass> &,
36 
37 template <class Arc>
39  using Weight = typename Arc::Weight;
40  MutableFst<Arc> *fst = std::get<0>(*args)->GetMutableFst<Arc>();
41  const std::vector<WeightClass> &potentials = std::get<1>(*args);
42  std::vector<Weight> typed_potentials;
43  internal::CopyWeights(potentials, &typed_potentials);
44  Reweight(fst, typed_potentials, std::get<2>(*args));
45 }
46 
47 void Reweight(MutableFstClass *fst, const std::vector<WeightClass> &potentials,
48  ReweightType reweight_type);
49 
50 } // namespace script
51 } // namespace fst
52 
53 #endif // FST_SCRIPT_REWEIGHT_H_
ReweightType
Definition: reweight.h:35
void Reweight(FstReweightArgs *args)
Definition: reweight.h:38
void CopyWeights(const std::vector< WeightClass > &weights, std::vector< Weight > *typed_weights)
Definition: script-impl.h:206
std::tuple< MutableFstClass *, const std::vector< WeightClass > &, ReweightType > FstReweightArgs
Definition: reweight.h:35