hmm-test-utils.h

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// hmm/hmm-test-utils.h

// Copyright 2009-2011   Microsoft Corporation
//                2015   Johns Hopkins University (author: Daniel Povey)

// 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.

#ifndef KALDI_HMM_HMM_TEST_UTILS_H_
#define KALDI_HMM_HMM_TEST_UTILS_H_

#include "hmm/hmm-topology.h"
#include "hmm/transition-model.h"
#include "lat/kaldi-lattice.h"
#include "tree/context-dep.h"

namespace kaldi {

// Here we put a convenience function for generating a TransitionModel object --
// useful in test code.  We may put other testing-related things here in time.

// This function returns a randomly generated TransitionModel object.
// If 'ctx_dep' is not NULL, it outputs to *ctx_dep a pointer to the
// tree that was used to generate the transition model.
TransitionModel *GenRandTransitionModel(ContextDependency **ctx_dep);

HmmTopology GetDefaultTopology(const std::vector<int32> &phones);


HmmTopology GenRandTopology(const std::vector<int32> &phones,
                            const std::vector<int32> &num_pdf_classes);

HmmTopology GenRandTopology();

void GeneratePathThroughHmm(const HmmTopology &topology,
                            bool reorder,
                            int32 phone,
                            std::vector<std::pair<int32, int32> > *path);


void GenerateRandomAlignment(const ContextDependencyInterface &ctx_dep,
                             const TransitionModel &trans_model,
                             bool reorder,
                             const std::vector<int32> &phone_sequence,
                             std::vector<int32> *alignment);




}  // namespace kaldi

#endif