feat-to-len.cc
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// featbin/feat-to-len.cc
// Copyright 2009-2011 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 "matrix/kaldi-matrix.h"
int main(int argc, char *argv[]) {
try {
using namespace kaldi;
const char *usage =
"Reads an archive of features and writes a corresponding archive\n"
"that maps utterance-id to utterance length in frames, or (with\n"
"one argument) print to stdout the total number of frames in the\n"
"input archive.\n"
"Usage: feat-to-len [options] <in-rspecifier> [<out-wspecifier>]\n"
"e.g.: feat-to-len scp:feats.scp ark,t:feats.lengths\n"
"or: feat-to-len scp:feats.scp\n";
ParseOptions po(usage);
po.Read(argc, argv);
if (po.NumArgs() != 1 && po.NumArgs() != 2) {
po.PrintUsage();
exit(1);
}
if (po.NumArgs() == 2) {
std::string rspecifier = po.GetArg(1);
std::string wspecifier = po.GetArg(2);
Int32Writer length_writer(wspecifier);
SequentialBaseFloatMatrixReader matrix_reader(rspecifier);
for (; !matrix_reader.Done(); matrix_reader.Next())
length_writer.Write(matrix_reader.Key(), matrix_reader.Value().NumRows());
} else {
int64 tot = 0;
std::string rspecifier = po.GetArg(1);
SequentialBaseFloatMatrixReader matrix_reader(rspecifier);
for (; !matrix_reader.Done(); matrix_reader.Next())
tot += matrix_reader.Value().NumRows();
std::cout << tot << std::endl;
}
return 0;
} catch(const std::exception &e) {
std::cerr << e.what();
return -1;
}
}