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src/ivectorbin/ivector-extractor-sum-accs.cc
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// ivectorbin/ivector-extractor-sum-accs.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 "util/common-utils.h"
#include "ivector/ivector-extractor.h"
int main(int argc, char *argv[]) {
try {
typedef kaldi::int32 int32;
using namespace kaldi;
const char *usage =
"Sum accumulators for training of iVector extractor
"
"Usage: ivector-extractor-sum-accs [options] <stats-in1> "
"<stats-in2> ... <stats-inN> <stats-out>
";
bool binary = true;
bool parallel = false;
kaldi::ParseOptions po(usage);
po.Register("binary", &binary, "Write output in binary mode");
po.Register("parallel", ¶llel, "If true, the program makes sure to "
"open all filehandles before reading for any (useful when "
"summing accs from long processes)");
po.Read(argc, argv);
if (po.NumArgs() < 2) {
po.PrintUsage();
exit(1);
}
std::string stats_wxfilename = po.GetArg(po.NumArgs());
IvectorExtractorStats stats;
if (parallel) {
std::vector<kaldi::Input*> inputs(po.NumArgs() - 1);
for (int i = 1; i < po.NumArgs(); i++) {
std::string stats_in_filename = po.GetArg(i);
inputs[i-1] = new kaldi::Input(stats_in_filename); // Don't try
// to work out binary status yet; this would cause us to wait
// for the output of that process. We delay it till later.
}
for (size_t i = 1; i < po.NumArgs(); i++) {
bool b;
if (kaldi::InitKaldiInputStream(inputs[i-1]->Stream(), &b)) {
bool add = true;
stats.Read(inputs[i-1]->Stream(), b, add);
delete inputs[i-1];
} else {
KALDI_ERR << "Malformed input file " << po.GetArg(i);
}
}
} else {
for (int32 i = 1; i < po.NumArgs(); i++) {
std::string stats_rxfilename = po.GetArg(i);
KALDI_LOG << "Reading stats from " << stats_rxfilename;
bool binary_in;
Input ki(stats_rxfilename, &binary_in);
bool add = true;
stats.Read(ki.Stream(), binary_in, add);
}
}
WriteKaldiObject(stats, stats_wxfilename, binary);
KALDI_LOG << "Wrote summed stats to " << stats_wxfilename;
return 0;
} catch(const std::exception &e) {
std::cerr << e.what() << '
';
return -1;
}
}
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