post-to-pdf-post.cc File Reference

#include "base/kaldi-common.h"
#include "util/common-utils.h"
#include "gmm/am-diag-gmm.h"
#include "hmm/transition-model.h"
#include "hmm/hmm-utils.h"
#include "hmm/posterior.h"

Include dependency graph for post-to-pdf-post.cc:

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

Function Documentation

main()

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

Definition at line 28 of file post-to-pdf-post.cc.

References kaldi::ConvertPosteriorToPdfs(), SequentialTableReader< Holder >::Done(), ParseOptions::GetArg(), KALDI_LOG, SequentialTableReader< Holder >::Key(), SequentialTableReader< Holder >::Next(), ParseOptions::NumArgs(), ParseOptions::PrintUsage(), ParseOptions::Read(), TransitionModel::Read(), Input::Stream(), SequentialTableReader< Holder >::Value(), and TableWriter< Holder >::Write().

                                 {
  using namespace kaldi;
  typedef kaldi::int32 int32;
  try {
    const char *usage =
        "This program turns per-frame posteriors, which have transition-ids as\n"
        "the integers, into pdf-level posteriors\n"
        "See also: post-to-phone-post, post-to-weights, get-post-on-ali\n"
        "\n"
        "Usage:  post-to-pdf-post [options] <model-file> <posteriors-rspecifier> <posteriors-wspecifier>\n"
        "e.g.: post-to-pdf-post 1.mdl ark:- ark:-\n";

    ParseOptions po(usage);

    po.Read(argc, argv);

    if (po.NumArgs() != 3) {
      po.PrintUsage();
      exit(1);
    }

    std::string model_rxfilename = po.GetArg(1),
        posteriors_rspecifier = po.GetArg(2),
        posteriors_wspecifier = po.GetArg(3);

    TransitionModel trans_model;    
    {
      bool binary_in;
      Input ki(model_rxfilename, &binary_in);
      trans_model.Read(ki.Stream(), binary_in);
    }

    int32 num_done = 0;
    SequentialPosteriorReader posterior_reader(posteriors_rspecifier);
    PosteriorWriter posterior_writer(posteriors_wspecifier);
    
    for (; !posterior_reader.Done(); posterior_reader.Next()) {
      const kaldi::Posterior &posterior = posterior_reader.Value();
      kaldi::Posterior pdf_posterior;
      ConvertPosteriorToPdfs(trans_model, posterior, &pdf_posterior);
      posterior_writer.Write(posterior_reader.Key(), pdf_posterior);
      num_done++;
    }
    KALDI_LOG << "Done converting posteriors to pdf-level posteriors for "
              << num_done << " utterances.";

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