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src/fstbin/fstcopy.cc 2.09 KB
8dcb6dfcb   Yannick Estève   first commit
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  // fstbin/fstcopy.cc
  
  // Copyright 2009-2011  Microsoft Corporation
  
  // See ../../COPYING for clarification regarding multiple authors
  //
  // 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 "fst/fstlib.h"
  #include "fstext/table-matcher.h"
  #include "fstext/fstext-utils.h"
  #include "fstext/kaldi-fst-io.h"
  
  /*
  Test:
  the command below should print out something similar to the given
  input.  and if you remove ,t from the output side it should print something
  binary.
  cat <<EOF | fstcopy ark,t:- ark,t:-
  foo
  0 1 9 9
  1 0.0
  
  EOF
  
  */
  int main(int argc, char *argv[]) {
    try {
      using namespace kaldi;
      using namespace fst;
      using kaldi::int32;
  
      const char *usage =
          "Copy tables/archives of FSTs, indexed by a string (e.g. utterance-id)
  "
          "
  "
          "Usage: fstcopy <fst-rspecifier> <fst-wspecifier>
  ";
  
      ParseOptions po(usage);
  
      po.Read(argc, argv);
  
      if (po.NumArgs() != 2) {
        po.PrintUsage();
        exit(1);
      }
      
      std::string fst_rspecifier = po.GetArg(1),
          fst_wspecifier = po.GetArg(2);
  
      SequentialTableReader<VectorFstHolder> fst_reader(fst_rspecifier);
      TableWriter<VectorFstHolder> fst_writer(fst_wspecifier);
      int32 n_done = 0;
      
      for (; !fst_reader.Done(); fst_reader.Next(), n_done++)
        fst_writer.Write(fst_reader.Key(), fst_reader.Value());
  
      KALDI_LOG << "Copied " << n_done << " FSTs.";
      return (n_done != 0 ? 0 : 1);
    } catch(const std::exception &e) {
      std::cerr << e.what();
      return -1;
    }
  }