feature-online-cmvn-cuda.h
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// cudafeat/feature-online-cmvn-cuda.h
//
// Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
// Justin Luitjens
//
// 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.
#ifndef KALDI_CUDAFEAT_FEATURE_ONLINE_CMVN_CUDA_H_
#define KALDI_CUDAFEAT_FEATURE_ONLINE_CMVN_CUDA_H_
#include "cudamatrix/cu-matrix.h"
#include "cudamatrix/cu-vector.h"
#include "feat/online-feature.h"
namespace kaldi {
struct CudaOnlineCmvnState {
// The following is the global CMVN stats, in the usual
// format, of dimension 2 x (dim+1), as [ sum-stats count
// sum-sqared-stats 0 ]
CuMatrix<float> global_cmvn_stats;
CuMatrix<float> speaker_cmvn_stats;
CudaOnlineCmvnState(){};
CudaOnlineCmvnState(const OnlineCmvnState &cmvn_state)
: global_cmvn_stats(cmvn_state.global_cmvn_stats),
speaker_cmvn_stats(cmvn_state.speaker_cmvn_stats) {}
CudaOnlineCmvnState(const CudaOnlineCmvnState &cmvn_state)
: global_cmvn_stats(cmvn_state.global_cmvn_stats),
speaker_cmvn_stats(cmvn_state.speaker_cmvn_stats) {}
};
class CudaOnlineCmvn {
public:
CudaOnlineCmvn(const OnlineCmvnOptions &opts, const CudaOnlineCmvnState &cmvn_state)
: opts_(opts), cmvn_state_(cmvn_state){};
~CudaOnlineCmvn(){};
void ComputeFeatures(const CuMatrixBase<BaseFloat> &feats_in,
CuMatrix<BaseFloat> *feats_out);
private:
const OnlineCmvnOptions &opts_;
const CudaOnlineCmvnState &cmvn_state_;
};
}
#endif