diff options
Diffstat (limited to 'source/application/api/use_case/asr/include/Wav2LetterModel.hpp')
-rw-r--r-- | source/application/api/use_case/asr/include/Wav2LetterModel.hpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/source/application/api/use_case/asr/include/Wav2LetterModel.hpp b/source/application/api/use_case/asr/include/Wav2LetterModel.hpp new file mode 100644 index 0000000..a02eed1 --- /dev/null +++ b/source/application/api/use_case/asr/include/Wav2LetterModel.hpp @@ -0,0 +1,67 @@ +/* + * 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 ASR_WAV2LETTER_MODEL_HPP +#define 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; + + /* Model specific constants. */ + static constexpr uint32_t ms_blankTokenIdx = 28; + static constexpr uint32_t ms_numMfccFeatures = 13; + + 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; + + 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 /* ASR_WAV2LETTER_MODEL_HPP */ |