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src/bin/post-to-pdf-post.cc
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// bin/post-to-pdf-post.cc
// Copyright 2012-2013 Johns Hopkins University (Author: Daniel Povey)
// See ../../COPYING for clarification regarding multiple authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
// WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
// MERCHANTABLITY OR NON-INFRINGEMENT.
// See the Apache 2 License for the specific language governing permissions and
// limitations under the License.
#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"
int main(int argc, char *argv[]) {
using namespace kaldi;
typedef kaldi::int32 int32;
try {
const char *usage =
"This program turns per-frame posteriors, which have transition-ids as
"
"the integers, into pdf-level posteriors
"
"See also: post-to-phone-post, post-to-weights, get-post-on-ali
"
"
"
"Usage: post-to-pdf-post [options] <model-file> <posteriors-rspecifier> <posteriors-wspecifier>
"
"e.g.: post-to-pdf-post 1.mdl ark:- ark:-
";
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;
}
}
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