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src/bin/copy-gselect.cc
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// bin/copy-gselect.cc
// Copyright 2009-2011 Saarland University; Microsoft Corporation
// 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/diag-gmm.h"
#include "hmm/transition-model.h"
int main(int argc, char *argv[]) {
try {
using namespace kaldi;
using std::vector;
typedef kaldi::int32 int32;
const char *usage =
"Copy Gaussian indices for pruning, possibly making the
"
"lists shorter (e.g. the --n=10 limits to the 10 best indices
"
"See also gmm-gselect, fgmm-gselect
"
"Usage: copy-gselect [options] <gselect-rspecifier> <gselect-wspecifier>
";
ParseOptions po(usage);
int32 num_gselect = 0;
std::string likelihood_wspecifier;
po.Register("n", &num_gselect, "Number of Gaussians to keep per frame (if nonzero)
");
po.Read(argc, argv);
if (po.NumArgs() != 2) {
po.PrintUsage();
exit(1);
}
KALDI_ASSERT(num_gselect >= 0);
std::string gselect_rspecifier = po.GetArg(1),
gselect_wspecifier = po.GetArg(2);
SequentialInt32VectorVectorReader gselect_reader(gselect_rspecifier);
Int32VectorVectorWriter gselect_writer(gselect_wspecifier);
int32 num_done = 0;
for (; !gselect_reader.Done(); gselect_reader.Next()) {
std::string utt = gselect_reader.Key();
if (num_gselect == 0) { // keep original size.
gselect_writer.Write(utt, gselect_reader.Value());
} else {
vector<vector<int32> > gselect(gselect_reader.Value());
for (size_t i = 0; i < gselect.size(); i++)
if (static_cast<int32>(gselect[i].size()) > num_gselect)
gselect[i].resize(num_gselect); // keep 1st n elements.
gselect_writer.Write(utt, gselect);
}
num_done++;
}
if (num_gselect == 0)
KALDI_LOG << "Copied " << num_done << " gselect objects ";
else
KALDI_LOG << "Copied " << num_done << " gselect objects, "
<< " limiting sizes to " << num_gselect;
if (num_done != 0) return 0;
else return 1;
} catch(const std::exception &e) {
std::cerr << e.what();
return -1;
}
}
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