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src/ivectorbin/ivector-copy-plda.cc
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// ivectorbin/ivector-copy-plda.cc
// Copyright 2013 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 "ivector/plda.h"
int main(int argc, char *argv[]) {
using namespace kaldi;
typedef kaldi::int32 int32;
try {
const char *usage =
"Copy a PLDA object, possibly applying smoothing to the within-class
"
"covariance
"
"
"
"Usage: ivector-copy-plda <plda-in> <plda-out>
"
"e.g.: ivector-copy-plda --smoothing=0.1 plda plda.smooth0.1
";
ParseOptions po(usage);
BaseFloat smoothing = 0.0;
bool binary = true;
po.Register("smoothing", &smoothing, "Factor used in smoothing within-class "
"covariance (add this factor times between-class covar)");
po.Register("binary", &binary, "Write output in binary mode");
PldaConfig plda_config;
plda_config.Register(&po);
po.Read(argc, argv);
if (po.NumArgs() != 2) {
po.PrintUsage();
exit(1);
}
std::string plda_rxfilename = po.GetArg(1),
plda_wxfilename = po.GetArg(2);
Plda plda;
ReadKaldiObject(plda_rxfilename, &plda);
if (smoothing != 0.0)
plda.SmoothWithinClassCovariance(smoothing);
WriteKaldiObject(plda, plda_wxfilename, binary);
return 0;
} catch(const std::exception &e) {
std::cerr << e.what();
return -1;
}
}
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