fstpushspecial.cc File Reference

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

Include dependency graph for fstpushspecial.cc:

Go to the source code of this file.

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

Function Documentation

main()

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

Definition at line 30 of file fstpushspecial.cc.

References ParseOptions::GetOptArg(), ParseOptions::NumArgs(), ParseOptions::PrintUsage(), fst::PushSpecial(), ParseOptions::Read(), fst::ReadFstKaldi(), ParseOptions::Register(), and fst::WriteFstKaldi().

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

    const char *usage =
        "Pushes weights in an FST such that all the states\n"
        "in the FST have arcs and final-probs with weights that\n"
        "sum to the same amount (viewed as being in the log semiring).\n"
        "Thus, the \"extra weight\" is distributed throughout the FST.\n"
        "Tolerance parameter --delta controls how exact this is, and the\n"
        "speed.\n"
        "\n"
        "Usage:  fstpushspecial [options] [in.fst [out.fst] ]\n";

    BaseFloat delta = kDelta;
    ParseOptions po(usage);
    po.Register("delta", &delta, "Delta cost: after pushing, all states will "
                "have a total weight that differs from the average by no more "
                "than this.");
    po.Read(argc, argv);

    if (po.NumArgs() > 2) {
      po.PrintUsage();
      exit(1);
    }

    std::string fst_in_filename = po.GetOptArg(1),
        fst_out_filename = po.GetOptArg(2);

    VectorFst<StdArc> *fst = ReadFstKaldi(fst_in_filename);

    PushSpecial(fst, delta);

    WriteFstKaldi(*fst, fst_out_filename);
    delete fst;
    return 0;
  } catch(const std::exception &e) {
    std::cerr << e.what();
    return -1;
  }
}