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src/bin/make-h-transducer.cc
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// bin/make-h-transducer.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 "hmm/transition-model.h"
#include "hmm/hmm-utils.h"
#include "tree/context-dep.h"
#include "util/common-utils.h"
#include "fst/fstlib.h"
#include "fstext/table-matcher.h"
#include "fstext/fstext-utils.h"
#include "fstext/context-fst.h"
int main(int argc, char *argv[]) {
try {
using namespace kaldi;
typedef kaldi::int32 int32;
using fst::SymbolTable;
using fst::VectorFst;
using fst::StdArc;
const char *usage =
"Make H transducer from transition-ids to context-dependent phones,
"
" without self-loops [use add-self-loops to add them]
"
"Usage: make-h-transducer <ilabel-info-file> <tree-file> <transition-gmm/acoustic-model> [<H-fst-out>]
"
"e.g.:
"
" make-h-transducer ilabel_info 1.tree 1.mdl > H.fst
";
ParseOptions po(usage);
HTransducerConfig hcfg;
std::string disambig_out_filename;
hcfg.Register(&po);
po.Register("disambig-syms-out", &disambig_out_filename, "List of disambiguation symbols on input of H [to be output from this program]");
po.Read(argc, argv);
if (po.NumArgs() < 3 || po.NumArgs() > 4) {
po.PrintUsage();
exit(1);
}
std::string ilabel_info_filename = po.GetArg(1);
std::string tree_filename = po.GetArg(2);
std::string model_filename = po.GetArg(3);
std::string fst_out_filename;
if (po.NumArgs() >= 4) fst_out_filename = po.GetArg(4);
if (fst_out_filename == "-") fst_out_filename = "";
std::vector<std::vector<int32> > ilabel_info;
{
bool binary_in;
Input ki(ilabel_info_filename, &binary_in);
fst::ReadILabelInfo(ki.Stream(), binary_in, &ilabel_info);
}
ContextDependency ctx_dep;
ReadKaldiObject(tree_filename, &ctx_dep);
TransitionModel trans_model;
ReadKaldiObject(model_filename, &trans_model);
std::vector<int32> disambig_syms_out;
// The work gets done here.
fst::VectorFst<fst::StdArc> *H = GetHTransducer (ilabel_info,
ctx_dep,
trans_model,
hcfg,
&disambig_syms_out);
#if _MSC_VER
if (fst_out_filename == "")
_setmode(_fileno(stdout), _O_BINARY);
#endif
if (disambig_out_filename != "") { // if option specified..
if (disambig_out_filename == "-")
disambig_out_filename = "";
if (! WriteIntegerVectorSimple(disambig_out_filename, disambig_syms_out))
KALDI_ERR << "Could not write disambiguation symbols to "
<< (disambig_out_filename == "" ?
"standard output" : disambig_out_filename);
}
if (! H->Write(fst_out_filename) )
KALDI_ERR << "make-h-transducer: error writing FST to "
<< (fst_out_filename == "" ?
"standard output" : fst_out_filename);
delete H;
return 0;
} catch(const std::exception &e) {
std::cerr << e.what();
return -1;
}
}
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