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src/bin/copy-vector.cc
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// bin/copy-vector.cc
// Copyright 2009-2012 Microsoft Corporation
// 2012-2014 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 "matrix/kaldi-vector.h"
#include "transform/transform-common.h"
int main(int argc, char *argv[]) {
try {
using namespace kaldi;
const char *usage =
"Copy vectors, or archives of vectors (e.g. transition-accs; speaker vectors)
"
"
"
"Usage: copy-vector [options] (<vector-in-rspecifier>|<vector-in-rxfilename>) (<vector-out-wspecifier>|<vector-out-wxfilename>)
"
" e.g.: copy-vector --binary=false 1.mat -
"
" copy-vector ark:2.trans ark,t:-
"
"see also: dot-weights, append-vector-to-feats
";
bool binary = true;
int32 change_dim = -1;
float scale = 1.0;
ParseOptions po(usage);
po.Register("binary", &binary, "Write in binary mode (only "
"relevant if output is a wxfilename)");
po.Register("change_dim", &change_dim,
"Use this option to truncate or zero-pad the vectors.");
po.Register("scale", &scale,
"This option can be used to scale the vectors being copied.");
po.Read(argc, argv);
if (po.NumArgs() != 2) {
po.PrintUsage();
exit(1);
}
std::string vector_in_fn = po.GetArg(1),
vector_out_fn = po.GetArg(2);
// all these "fn"'s are either rspecifiers or filenames.
bool in_is_rspecifier =
(ClassifyRspecifier(vector_in_fn, NULL, NULL)
!= kNoRspecifier),
out_is_wspecifier =
(ClassifyWspecifier(vector_out_fn, NULL, NULL, NULL)
!= kNoWspecifier);
if (in_is_rspecifier != out_is_wspecifier)
KALDI_ERR << "Cannot mix archives with regular files (copying vectors)";
if (!in_is_rspecifier) {
Vector<BaseFloat> vec;
ReadKaldiObject(vector_in_fn, &vec);
Output ko(vector_out_fn, binary);
if (change_dim >= 0) vec.Resize(change_dim, kCopyData);
vec.Write(ko.Stream(), binary);
KALDI_LOG << "Copied vector to " << vector_out_fn;
return 0;
} else {
int num_done = 0;
BaseFloatVectorWriter writer(vector_out_fn);
SequentialBaseFloatVectorReader reader(vector_in_fn);
if (change_dim < 0 && scale == 1.0) {
for (; !reader.Done(); reader.Next(), num_done++) {
writer.Write(reader.Key(), reader.Value());
}
KALDI_LOG << "Copied " << num_done << " vectors.";
} else {
for (; !reader.Done(); reader.Next(), num_done++) {
Vector<BaseFloat> vec(reader.Value());
if (change_dim >= 0) vec.Resize(change_dim, kCopyData);
if (scale != 1.0) vec.Scale(scale);
writer.Write(reader.Key(), reader.Value());
}
KALDI_LOG << "Copied " << num_done << " vectors, setting dim to "
<< change_dim << " scaled by " << scale;
}
return (num_done != 0 ? 0 : 1);
}
} catch(const std::exception &e) {
std::cerr << e.what();
return -1;
}
}
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