fstisstochastic.cc File Reference

#include "base/kaldi-common.h"
#include "util/kaldi-io.h"
#include "util/parse-options.h"
#include "fst/fstlib.h"
#include "fstext/fstext-utils.h"
#include "fstext/kaldi-fst-io.h"

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Functions
int	main (int argc, char *argv[])

Function Documentation

main()

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 43 of file fstisstochastic.cc.

References ParseOptions::GetOptArg(), fst::IsStochasticFst(), fst::IsStochasticFstInLog(), ParseOptions::NumArgs(), ParseOptions::PrintUsage(), ParseOptions::Read(), fst::ReadFstKaldiGeneric(), and ParseOptions::Register().

                                 {
  try {
    using namespace kaldi;
    using namespace fst;
    using kaldi::int32;

    const char *usage =
        "Checks whether an FST is stochastic and exits with success if so.\n"
        "Prints out maximum error (in log units).\n"
        "\n"
        "Usage:  fstisstochastic [ in.fst ]\n";

    float delta = 0.01;
    bool test_in_log = true;

    ParseOptions po(usage);
    po.Register("delta", &delta, "Maximum error to accept.");
    po.Register("test-in-log", &test_in_log, "Test stochasticity in log semiring.");
    po.Read(argc, argv);

    if (po.NumArgs() > 1) {
      po.PrintUsage();
      exit(1);
    }

    std::string fst_in_filename = po.GetOptArg(1);

    Fst<StdArc> *fst = ReadFstKaldiGeneric(fst_in_filename);

    bool ans;
    StdArc::Weight min, max;
    if (test_in_log)  ans = IsStochasticFstInLog(*fst, delta, &min, &max);
    else ans = IsStochasticFst(*fst, delta, &min, &max);

    std::cout << min.Value() << " " << max.Value() << '\n';
    delete fst;
    if (ans) return 0;  // success;
    else return 1;
  } catch(const std::exception &e) {
    std::cerr << e.what();
    return -1;
  }
}