| /* |
| * Copyright (c) 2021 Arm Limited. All rights reserved. |
| * SPDX-License-Identifier: Apache-2.0 |
| * |
| * 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 KWS_ASR_WAV2LETTER_MODEL_HPP |
| #define KWS_ASR_WAV2LETTER_MODEL_HPP |
| |
| #include "Model.hpp" |
| |
| namespace arm { |
| namespace app { |
| namespace asr { |
| extern const int g_FrameLength; |
| extern const int g_FrameStride; |
| extern const float g_ScoreThreshold; |
| extern const int g_ctxLen; |
| } /* namespace asr */ |
| } /* namespace app */ |
| } /* namespace arm */ |
| |
| namespace arm { |
| namespace app { |
| |
| class Wav2LetterModel : public Model { |
| |
| public: |
| /* Indices for the expected model - based on input and output tensor shapes */ |
| static constexpr uint32_t ms_inputRowsIdx = 1; |
| static constexpr uint32_t ms_inputColsIdx = 2; |
| static constexpr uint32_t ms_outputRowsIdx = 2; |
| static constexpr uint32_t ms_outputColsIdx = 3; |
| |
| protected: |
| /** @brief Gets the reference to op resolver interface class. */ |
| const tflite::MicroOpResolver& GetOpResolver() override; |
| |
| /** @brief Adds operations to the op resolver instance. */ |
| bool EnlistOperations() override; |
| |
| const uint8_t* ModelPointer() override; |
| |
| size_t ModelSize() override; |
| |
| private: |
| /* Maximum number of individual operations that can be enlisted. */ |
| static constexpr int ms_maxOpCnt = 5; |
| |
| /* A mutable op resolver instance. */ |
| tflite::MicroMutableOpResolver<ms_maxOpCnt> m_opResolver; |
| }; |
| |
| } /* namespace app */ |
| } /* namespace arm */ |
| |
| #endif /* KWS_ASR_WAV2LETTER_MODEL_HPP */ |