copy-feats-to-sphinx.cc File Reference

#include "base/kaldi-common.h"
#include "util/common-utils.h"
#include "matrix/kaldi-matrix.h"
#include "matrix/matrix-common.h"
#include "matrix/matrix-lib.h"
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>

Include dependency graph for copy-feats-to-sphinx.cc:

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

Function Documentation

main()

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

Definition at line 37 of file copy-feats-to-sphinx.cc.

References SequentialTableReader< Holder >::Done(), ParseOptions::GetArg(), KALDI_ERR, KALDI_LOG, SequentialTableReader< Holder >::Key(), kaldi::kUndefined, SequentialTableReader< Holder >::Next(), ParseOptions::NumArgs(), MatrixBase< Real >::NumCols(), MatrixBase< Real >::NumRows(), ParseOptions::PrintUsage(), MatrixBase< Real >::Range(), ParseOptions::Read(), ParseOptions::Register(), SequentialTableReader< Holder >::Value(), and kaldi::WriteSphinx().

                                 {
  try {
    using namespace kaldi;

    const char *usage =
        "Save features as Sphinx files:\n" 
        "Each utterance will be stored as a unique Sphinx file in a specified directory.\n"
        "The Sphinx filename will correspond to the utterance-id (key) in the input table, with the specified extension.\n"
        "Usage: copy-feats-to-sphinx [options] in-rspecifier\n"
        "Example: copy-feats-to-sphinx --output-dir=/tmp/sphinx-features --output-ext=fea  scp:feats.scp\n";

    ParseOptions po(usage);
    std::string dir_out = "./";
    std::string ext_out = "mfc";

    po.Register("output-ext", &ext_out, "Output extension of sphinx files");
    po.Register("output-dir", &dir_out, "Output directory");

    po.Read(argc, argv);

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

    std::string rspecifier = po.GetArg(1);

    // check or create output dir:
    const char * c = dir_out.c_str();
   if ( access( c, 0 ) != 0 ){
#if defined(_MSC_VER)
    if (_mkdir(c) != 0)
#else
    if (mkdir(c, S_IRWXU|S_IRGRP|S_IXGRP) != 0)
#endif
       KALDI_ERR << "Could not create output directory: " << dir_out;
    }
    
    // write to the sphinx files
    int32 num_frames, dim, num_done=0;
    SequentialBaseFloatMatrixReader feats_reader(rspecifier);
    for (; !feats_reader.Done(); feats_reader.Next()) {
      std::string utt = feats_reader.Key();
      const Matrix<BaseFloat> &feats = feats_reader.Value();
      num_frames = feats.NumRows(), dim = feats.NumCols();

      Matrix<BaseFloat> output(num_frames, dim, kUndefined);
      std::stringstream ss;
      ss << dir_out << "/" << utt << "." << ext_out; 
      output.Range(0, num_frames, 0, dim).CopyFromMat(feats.Range(0, num_frames, 0, dim));    
      std::ofstream os(ss.str().c_str(), std::ios::out|std::ios::binary);
      WriteSphinx(os, output);
      num_done++;    
    }
    KALDI_LOG << num_done << " Sphinx feature files generated in the direcory: " << dir_out;
    return (num_done != 0 ? 0 : 1);

  } catch(const std::exception &e) {
    std::cerr << e.what();
    return -1;
  }
}