fmpe-apply-transform.cc
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// featbin/fmpe-apply-transform.cc
// Copyright 2012 Johns Hopkins University (Author: Daniel Povey) Yanmin Qian
// 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 "transform/fmpe.h"
int main(int argc, char *argv[]) {
using namespace kaldi;
using kaldi::int32;
try {
const char *usage =
"Apply fMPE transform to features\n"
"Usage: fmpe-apply-transform [options...] <fmpe-object> "
"<feat-rspecifier> <gselect-rspecifier> <feat-wspecifier>\n";
ParseOptions po(usage);
bool add_to_features = true;
po.Register("add-to-features", &add_to_features, "If true, add original "
"features to fMPE offsets (false useful for diagnostics)");
// no non-default options.
po.Read(argc, argv);
if (po.NumArgs() != 4) {
po.PrintUsage();
exit(1);
}
std::string fmpe_rxfilename = po.GetArg(1),
feat_rspecifier = po.GetArg(2),
gselect_rspecifier = po.GetArg(3),
feat_wspecifier = po.GetArg(4);
Fmpe fmpe;
ReadKaldiObject(fmpe_rxfilename, &fmpe);
SequentialBaseFloatMatrixReader feat_reader(feat_rspecifier);
RandomAccessInt32VectorVectorReader gselect_reader(gselect_rspecifier);
BaseFloatMatrixWriter feat_writer(feat_wspecifier);
int32 num_done = 0, num_err = 0;
for (; !feat_reader.Done(); feat_reader.Next()) {
std::string key = feat_reader.Key();
const Matrix<BaseFloat> feat_in(feat_reader.Value());
if (!gselect_reader.HasKey(key)) {
KALDI_WARN << "No gselect information for key " << key;
num_err++;
continue;
}
const std::vector<std::vector<int32> > &gselect =
gselect_reader.Value(key);
if (static_cast<int32>(gselect.size()) != feat_in.NumRows()) {
KALDI_WARN << "gselect information has wrong size";
num_err++;
continue;
}
Matrix<BaseFloat> feat_out(feat_in.NumRows(), feat_in.NumCols());
fmpe.ComputeFeatures(feat_in, gselect, &feat_out);
if (add_to_features) // feat_out += feat_in.
feat_out.AddMat(1.0, feat_in, kNoTrans);
feat_writer.Write(key, feat_out);
num_done++;
}
KALDI_LOG << " Done " << num_done << " utterances, " << num_err
<< " had errors.";
return (num_done != 0 ? 0 : 1);
} catch(const std::exception &e) {
std::cerr << e.what();
return -1;
}
}