// fstbin/fsts-project.cc
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// Copyright 2016 Johns Hopkins University (Authors: Jan "Yenda" Trmal)
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// See ../../COPYING for clarification regarding multiple authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
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// WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
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// MERCHANTABLITY OR NON-INFRINGEMENT.
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// See the Apache 2 License for the specific language governing permissions and
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// limitations under the License.
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#include "base/kaldi-common.h"
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#include "util/common-utils.h"
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#include "fstext/fstext-utils.h"
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#include "fstext/kaldi-fst-io.h"
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int main(int argc, char *argv[]) {
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try {
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using namespace kaldi;
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using namespace fst;
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typedef kaldi::int32 int32;
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typedef kaldi::uint64 uint64;
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const char *usage =
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"Reads kaldi archive of FSTs; for each element, performs the project\n"
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"operation either on input (default) or on the output (if the option\n"
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"--project-output is true).\n"
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"\n"
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"Usage: fsts-project [options] <fsts-rspecifier> <fsts-wspecifier>\n"
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" e.g.: fsts-project ark:train.fsts ark,t:train.fsts\n"
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"\n"
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"see also: fstproject (from the OpenFst toolkit)\n";
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ParseOptions po(usage);
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bool project_output = false;
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po.Register("project-output", &project_output,
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"If true, project output vs input");
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po.Read(argc, argv);
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if (po.NumArgs() != 2) {
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po.PrintUsage();
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exit(1);
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}
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std::string fsts_rspecifier = po.GetArg(1),
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fsts_wspecifier = po.GetArg(2);
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SequentialTableReader<VectorFstHolder> fst_reader(fsts_rspecifier);
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TableWriter<VectorFstHolder> fst_writer(fsts_wspecifier);
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int32 n_done = 0;
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for (; !fst_reader.Done(); fst_reader.Next()) {
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std::string key = fst_reader.Key();
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VectorFst<StdArc> fst(fst_reader.Value());
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Project(&fst, project_output ? PROJECT_OUTPUT : PROJECT_INPUT);
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fst_writer.Write(key, fst);
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n_done++;
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}
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KALDI_LOG << "Projected " << n_done << " FSTs";
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return (n_done != 0 ? 0 : 1);
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} catch(const std::exception &e) {
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std::cerr << e.what();
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return -1;
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}
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}
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