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dtw_merge.cc
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dtw_merge.cc
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// ------------------------------------------------------------------------ //
// Copyright 2021 SPTK Working Group //
// //
// 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 //
// //
// Unless required by applicable law or agreed to in writing, software //
// distributed under the License is distributed on an "AS IS" BASIS, //
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. //
// See the License for the specific language governing permissions and //
// limitations under the License. //
// ------------------------------------------------------------------------ //
#include <fstream> // std::ifstream
#include <iomanip> // std::setw
#include <iostream> // std::cerr, std::cin, std::cout, std::endl, etc.
#include <sstream> // std::ostringstream
#include <vector> // std::vector
#include "GETOPT/ya_getopt.h"
#include "SPTK/utils/sptk_utils.h"
namespace {
const int kDefaultNumOrder(25);
void PrintUsage(std::ostream* stream) {
// clang-format off
*stream << std::endl;
*stream << " dtw_merge - merge two vector sequences" << std::endl;
*stream << std::endl;
*stream << " usage:" << std::endl;
*stream << " dtw_merge [ options ] vfile file1 [ infile ] > stdout" << std::endl; // NOLINT
*stream << " options:" << std::endl;
*stream << " -l l : length of vector ( int)[" << std::setw(5) << std::right << kDefaultNumOrder + 1 << "][ 1 <= l <= ]" << std::endl; // NOLINT
*stream << " -m m : order of vector ( int)[" << std::setw(5) << std::right << "l-1" << "][ 0 <= m <= ]" << std::endl; // NOLINT
*stream << " -h : print this message" << std::endl;
*stream << " vfile:" << std::endl;
*stream << " Viterbi path ( int)" << std::endl;
*stream << " file1:" << std::endl;
*stream << " reference vector sequence (double)" << std::endl;
*stream << " infile:" << std::endl;
*stream << " query vector sequence (double)[stdin]" << std::endl;
*stream << " stdout:" << std::endl;
*stream << " warped vector sequence (double)" << std::endl;
*stream << std::endl;
*stream << " SPTK: version " << sptk::kVersion << std::endl;
*stream << std::endl;
// clang-format on
}
} // namespace
/**
* @a dtw_merge [ @e option ] @e vfile @e file1 [ @e infile ]
*
* - @b -l @e int
* - length of vector @f$(1 \le M+1)@f$
* - @b -m @e int
* - order of vector @f$(0 \le M)@f$
* - @b vfile @e str
* - int-type Viterbi path
* - @b file1 @e str
* - double-type reference vector sequence
* - @b infile @e str
* - double-type query vector sequence
* - @b stdout
* - double-type concatenated vector sequence
*
* @param[in] argc Number of arguments.
* @param[in] argv Argument vector.
* @return 0 on success, 1 on failure.
*/
int main(int argc, char* argv[]) {
int num_order(kDefaultNumOrder);
for (;;) {
const int option_char(getopt_long(argc, argv, "l:m:h", NULL, NULL));
if (-1 == option_char) break;
switch (option_char) {
case 'l': {
if (!sptk::ConvertStringToInteger(optarg, &num_order) ||
num_order <= 0) {
std::ostringstream error_message;
error_message
<< "The argument for the -l option must be a positive integer";
sptk::PrintErrorMessage("dtw_merge", error_message);
return 1;
}
--num_order;
break;
}
case 'm': {
if (!sptk::ConvertStringToInteger(optarg, &num_order) ||
num_order < 0) {
std::ostringstream error_message;
error_message << "The argument for the -m option must be a "
<< "non-negative integer";
sptk::PrintErrorMessage("dtw_merge", error_message);
return 1;
}
break;
}
case 'h': {
PrintUsage(&std::cout);
return 0;
}
default: {
PrintUsage(&std::cerr);
return 1;
}
}
}
const char* viterbi_path_file;
const char* reference_file;
const char* query_file;
const int num_input_files(argc - optind);
if (3 == num_input_files) {
viterbi_path_file = argv[argc - 3];
reference_file = argv[argc - 2];
query_file = argv[argc - 1];
} else if (2 == num_input_files) {
viterbi_path_file = argv[argc - 2];
reference_file = argv[argc - 1];
query_file = NULL;
} else {
std::ostringstream error_message;
error_message << "Three input files are required";
sptk::PrintErrorMessage("dtw_merge", error_message);
return 1;
}
if (!sptk::SetBinaryMode()) {
std::ostringstream error_message;
error_message << "Cannot set translation mode";
sptk::PrintErrorMessage("dtw_merge", error_message);
return 1;
}
std::ifstream ifs1;
ifs1.open(viterbi_path_file, std::ios::in | std::ios::binary);
if (ifs1.fail()) {
std::ostringstream error_message;
error_message << "Cannot open file " << viterbi_path_file;
sptk::PrintErrorMessage("dtw_merge", error_message);
return 1;
}
std::istream& input_stream_for_path(ifs1);
std::ifstream ifs2;
ifs2.open(reference_file, std::ios::in | std::ios::binary);
if (ifs2.fail()) {
std::ostringstream error_message;
error_message << "Cannot open file " << reference_file;
sptk::PrintErrorMessage("dtw_merge", error_message);
return 1;
}
std::istream& input_stream_for_reference(ifs2);
std::ifstream ifs3;
if (NULL != query_file) {
ifs3.open(query_file, std::ios::in | std::ios::binary);
if (ifs3.fail()) {
std::ostringstream error_message;
error_message << "Cannot open file " << query_file;
sptk::PrintErrorMessage("dtw_merge", error_message);
return 1;
}
}
std::istream& input_stream_for_query(ifs3.is_open() ? ifs3 : std::cin);
const int length(num_order + 1);
std::vector<double> query_vector(length);
std::vector<double> reference_vector(length);
if (!sptk::ReadStream(false, 0, 0, length, &query_vector,
&input_stream_for_query, NULL) ||
!sptk::ReadStream(false, 0, 0, length, &reference_vector,
&input_stream_for_reference, NULL)) {
return 0;
}
int prev_query_vector_index(0), prev_reference_vector_index(0);
int curr_query_vector_index, curr_reference_vector_index;
while (
sptk::ReadStream(&curr_query_vector_index, &input_stream_for_path) &&
sptk::ReadStream(&curr_reference_vector_index, &input_stream_for_path)) {
if (curr_query_vector_index < 0 || curr_reference_vector_index < 0 ||
curr_query_vector_index < prev_query_vector_index ||
curr_reference_vector_index < prev_reference_vector_index) {
std::ostringstream error_message;
error_message << "Invalid Viterbi path";
sptk::PrintErrorMessage("dtw_merge", error_message);
return 1;
}
{
const int diff(curr_query_vector_index - prev_query_vector_index);
for (int i(0); i < diff; ++i) {
if (!sptk::ReadStream(false, 0, 0, length, &query_vector,
&input_stream_for_query, NULL)) {
return 0;
}
}
prev_query_vector_index = curr_query_vector_index;
}
{
const int diff(curr_reference_vector_index - prev_reference_vector_index);
for (int i(0); i < diff; ++i) {
if (!sptk::ReadStream(false, 0, 0, length, &reference_vector,
&input_stream_for_reference, NULL)) {
return 0;
}
}
prev_reference_vector_index = curr_reference_vector_index;
}
if (!sptk::WriteStream(0, length, query_vector, &std::cout, NULL) ||
!sptk::WriteStream(0, length, reference_vector, &std::cout, NULL)) {
std::ostringstream error_message;
error_message << "Failed to write merged vector";
sptk::PrintErrorMessage("dtw_merge", error_message);
return 1;
}
}
return 0;
}