Input Class Reference

#include <kaldi-io.h>

Collaboration diagram for Input:

Public Member Functions
	Input (const std::string &rxfilename, bool *contents_binary=NULL)
	The normal constructor. More...
	Input ()
bool	Open (const std::string &rxfilename, bool *contents_binary=NULL)
bool	OpenTextMode (const std::string &rxfilename)
bool	IsOpen ()
int32	Close ()
std::istream &	Stream ()
	~Input ()

Private Member Functions
bool	OpenInternal (const std::string &rxfilename, bool file_binary, bool *contents_binary)
	KALDI_DISALLOW_COPY_AND_ASSIGN (Input)

Private Attributes
InputImplBase *	impl_

Detailed Description

Definition at line 190 of file kaldi-io.h.

Constructor & Destructor Documentation

Input() [1/2]

Input	(	const std::string &	rxfilename,
		bool *	contents_binary = NULL
	)

The normal constructor.

Opens the stream in binary mode. Equivalent to calling the default constructor followed by Open(); then, if binary != NULL, it calls ReadHeader(), putting the output in "binary"; it throws on error.

Definition at line 754 of file kaldi-io.cc.

References KALDI_ERR, Input::Open(), and kaldi::PrintableRxfilename().

                                                     : impl_(NULL) {
  if (!Open(rxfilename, binary)) {
    KALDI_ERR << "Error opening input stream "
              << PrintableRxfilename(rxfilename);
  }
}

Input() [2/2]

Input ( )

inline

Definition at line 198 of file kaldi-io.h.

References Output::Close(), Output::IsOpen(), Output::Open(), and Output::Stream().

: impl_(NULL) {}

~Input()

~Input

(

)

Definition at line 823 of file kaldi-io.cc.

References Input::Close(), and Input::impl_.

{ if (impl_) Close(); }

Member Function Documentation

Close()

int32 Close

(

)

Definition at line 761 of file kaldi-io.cc.

References InputImplBase::Close(), and Input::impl_.

Referenced by Nnet::Init(), LinearTransform::InitData(), Input::OpenInternal(), PdfPrior::PdfPrior(), Nnet::Read(), and Input::~Input().

                   {
  if (impl_) {
    int32 ans = impl_->Close();
    delete impl_;
    impl_ = NULL;
    return ans;
  } else {
    return 0;
  }
}

IsOpen()

bool IsOpen ( )

inline

Definition at line 34 of file kaldi-io-inl.h.

References Input::impl_.

Referenced by Input::OpenInternal(), and Input::Stream().

                   {
  return impl_ != NULL;
}

KALDI_DISALLOW_COPY_AND_ASSIGN()

KALDI_DISALLOW_COPY_AND_ASSIGN ( Input  )

private

Open()

bool Open ( const std::string &  rxfilename, bool *  contents_binary = NULL  )

inline

Definition at line 26 of file kaldi-io-inl.h.

References Input::OpenInternal().

Referenced by Input::Input(), NnetDiscriminativeTrainer::NnetDiscriminativeTrainer(), NnetTrainer::NnetTrainer(), and kaldi::ReadScriptFile().

                                                          {
  return OpenInternal(rxfilename, true, binary);
}

OpenInternal()

bool OpenInternal ( const std::string &  rxfilename, bool  file_binary, bool *  contents_binary  )

private

Definition at line 772 of file kaldi-io.cc.

References kaldi::ClassifyRxfilename(), Input::Close(), Input::impl_, kaldi::InitKaldiInputStream(), Input::IsOpen(), KALDI_WARN, kaldi::kFileInput, kaldi::kOffsetFileInput, kaldi::kPipeInput, kaldi::kStandardInput, InputImplBase::MyType(), InputImplBase::Open(), kaldi::PrintableRxfilename(), and InputImplBase::Stream().

Referenced by Input::Open(), and Input::OpenTextMode().

                                                {
  InputType type = ClassifyRxfilename(rxfilename);
  if (IsOpen()) {
    // May have to close the stream first.
    if (type == kOffsetFileInput && impl_->MyType() == kOffsetFileInput) {
      // We want to use the same object to Open... this is in case
      // the files are the same, so we can just seek.
      if (!impl_->Open(rxfilename, file_binary)) {  // true is binary mode--
        // always open in binary.
        delete impl_;
        impl_ = NULL;
        return false;
      }
      // read the binary header, if requested.
      if (contents_binary != NULL)
        return InitKaldiInputStream(impl_->Stream(), contents_binary);
      else
        return true;
    } else {
      Close();
      // and fall through to code below which actually opens the file.
    }
  }
  if (type ==  kFileInput) {
    impl_ = new FileInputImpl();
  } else if (type == kStandardInput) {
    impl_ = new StandardInputImpl();
  } else if (type == kPipeInput) {
    impl_ = new PipeInputImpl();
  } else if (type == kOffsetFileInput) {
    impl_ = new OffsetFileInputImpl();
  } else {  // type == kNoInput
    KALDI_WARN << "Invalid input filename format "<<
        PrintableRxfilename(rxfilename);
    return false;
  }
  if (!impl_->Open(rxfilename, file_binary)) {  // true is binary mode--
    // always read in binary.
    delete impl_;
    impl_ = NULL;
    return false;
  }
  if (contents_binary != NULL)
    return InitKaldiInputStream(impl_->Stream(), contents_binary);
  else
    return true;
}

OpenTextMode()

bool OpenTextMode ( const std::string &  rxfilename )

inline

Definition at line 30 of file kaldi-io-inl.h.

References Input::OpenInternal().

Referenced by PdfPrior::PdfPrior(), kaldi::ReadIntegerVectorSimple(), and kaldi::ReadIntegerVectorVectorSimple().

                                                    {
  return OpenInternal(rxfilename, false, NULL);
}

Stream()

std::istream & Stream

(

)

Definition at line 826 of file kaldi-io.cc.

References Input::impl_, Input::IsOpen(), KALDI_ERR, and InputImplBase::Stream().

Referenced by kaldi::BuildConstArpaLm(), kaldi::Compile(), CopyExcludedFeats(), CopyIncludedFeats(), kaldi::CopySubsetLattices(), kaldi::GetUtterancePairs(), Nnet::Init(), kaldi::InitAmGmmFromOld(), LinearTransform::InitData(), FixedAffineComponent::InitFromConfig(), FixedLinearComponent::InitFromString(), FixedAffineComponent::InitFromString(), main(), NnetChainTrainer::NnetChainTrainer(), NnetDiscriminativeTrainer::NnetDiscriminativeTrainer(), NnetTrainer::NnetTrainer(), OnlineGmmDecodingModels::OnlineGmmDecodingModels(), PdfPrior::PdfPrior(), kaldi::PrepareMap(), kaldi::nnet3::ProcessRangeFile(), Nnet::Read(), kaldi::ReadDecodeGraph(), fst::ReadFstKaldi(), fst::ReadFstKaldiGeneric(), kaldi::ReadIntegerVectorSimple(), kaldi::ReadIntegerVectorVectorSimple(), kaldi::ReadKaldiObject(), kaldi::ReadNetwork(), kaldi::ReadScriptFile(), kaldi::ReadSharedPhonesList(), kaldi::ReadSymbolList(), test_io(), TestAmDiagGmmAccsIO(), TestAmDiagGmmIO(), kaldi::TestBuildTreeStatsIo(), fst::TestContextFst(), kaldi::TestEventTypeIo(), kaldi::TestFmpe(), kaldi::TestGenRandContextDependency(), TestMllrAccsIO(), kaldi::TestSetOfNumbers(), TestSgmm2AccsIO(), TestSgmm2FmllrAccsIO(), TestSgmm2IO(), kaldi::UnitTestDiagGmm(), UnitTestEstimateDiagGmm(), UnitTestFullGmm(), kaldi::nnet2::UnitTestGenericComponentInternal(), kaldi::UnitTestIoNew(), kaldi::UnitTestIoPipe(), kaldi::UnitTestRangesMatrix(), kaldi::UnitTestRegtreeFmllrDiagGmm(), and WordBoundaryInfo::WordBoundaryInfo().

                          {
  if (!IsOpen()) KALDI_ERR << "Input::Stream(), not open.";
  return impl_->Stream();
}

Member Data Documentation

impl_

InputImplBase* impl_

private

Definition at line 235 of file kaldi-io.h.

Referenced by Input::Close(), Output::IsOpen(), Input::IsOpen(), Input::OpenInternal(), Input::Stream(), and Input::~Input().

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The documentation for this class was generated from the following files:

• util/kaldi-io.h
• util/kaldi-io-inl.h
• util/kaldi-io.cc