nnet3-merge-egs.cc File Reference

#include "base/kaldi-common.h"
#include "util/common-utils.h"
#include "hmm/transition-model.h"
#include "nnet3/nnet-example.h"
#include "nnet3/nnet-example-utils.h"

Include dependency graph for nnet3-merge-egs.cc:

Go to the source code of this file.

Namespaces
	kaldi
	This code computes Goodness of Pronunciation (GOP) and extracts phone-level pronunciation feature for mispronunciations detection tasks, the reference:
	kaldi::nnet3

Functions
int32	NumOutputIndexes (const NnetExample &eg)
int	main (int argc, char *argv[])

Function Documentation

main()

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 42 of file nnet3-merge-egs.cc.

References ExampleMerger::AcceptExample(), ExampleMergingConfig::ComputeDerived(), SequentialTableReader< Holder >::Done(), ExampleMerger::ExitStatus(), ExampleMerger::Finish(), ParseOptions::GetArg(), SequentialTableReader< Holder >::Next(), ParseOptions::NumArgs(), ParseOptions::PrintUsage(), ParseOptions::Read(), ExampleMergingConfig::Register(), and SequentialTableReader< Holder >::Value().

                                 {
  try {
    using namespace kaldi;
    using namespace kaldi::nnet3;
    typedef kaldi::int32 int32;
    typedef kaldi::int64 int64;

    const char *usage =
        "This copies nnet training examples from input to output, but while doing so it\n"
        "merges many NnetExample objects into one, forming a minibatch consisting of a\n"
        "single NnetExample.\n"
        "\n"
        "Usage:  nnet3-merge-egs [options] <egs-rspecifier> <egs-wspecifier>\n"
        "e.g.\n"
        "nnet3-merge-egs --minibatch-size=512 ark:1.egs ark:- | nnet3-train-simple ... \n"
        "See also nnet3-copy-egs\n";

    ParseOptions po(usage);

    ExampleMergingConfig merging_config;
    merging_config.Register(&po);

    po.Read(argc, argv);

    if (po.NumArgs() != 2) {
      po.PrintUsage();
      exit(1);
    }

    std::string examples_rspecifier = po.GetArg(1),
        examples_wspecifier = po.GetArg(2);

    merging_config.ComputeDerived();

    SequentialNnetExampleReader example_reader(examples_rspecifier);
    NnetExampleWriter example_writer(examples_wspecifier);

    ExampleMerger merger(merging_config, &example_writer);

    for (; !example_reader.Done(); example_reader.Next()) {
      const NnetExample &cur_eg = example_reader.Value();
      merger.AcceptExample(new NnetExample(cur_eg));
    }
    // the merger itself prints the necessary diagnostics.
    merger.Finish();
    return merger.ExitStatus();
  } catch(const std::exception &e) {
    std::cerr << e.what() << '\n';
    return -1;
  }
}