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/*
* 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 NOISE_REDUCTION_EVT_HANDLER_HPP
#define NOISE_REDUCTION_EVT_HANDLER_HPP
#include "AppContext.hpp"
#include "Model.hpp"
namespace arm {
namespace app {
/**
* @brief Handles the inference event for noise reduction.
* @param[in] ctx pointer to the application context
* @param[in] runAll flag to request classification of all the available audio clips
* @return True or false based on execution success
**/
bool NoiseReductionHandler(ApplicationContext& ctx, bool runAll);
/**
* @brief Dumps the output tensors to a memory address.
* This functionality is required for RNNoise use case as we want to
* save the inference output to a file. Dumping out tensors to a
* memory location will allow the Arm FVP or MPS3 to extract the
* contents of this memory location to a file. This file could then
* be used by an offline post-processing script.
*
* @param[in] model reference to a model
* @param[in] memAddress memory address at which the dump will start
* @param[in] memSize maximum size (in bytes) of the dump.
*
* @return number of bytes written to memory.
*/
size_t DumpOutputTensorsToMemory(Model& model, uint8_t* memAddress,
size_t memSize);
/**
* @brief Dumps the audio file header.
* This functionality is required for RNNoise use case as we want to
* save the inference output to a file. Dumping out the header to a
* memory location will allow the Arm FVP or MPS3 to extract the
* contents of this memory location to a file.
* The header contains the following information
* int32_t filenameLength: filename length
* uint8_t[] filename: the string containing the file name (without trailing \0)
* int32_t dumpSizeByte: audiofile buffer size in bytes
*
* @param[in] filename the file name
* @param[in] dumpSize the size of the audio file (int elements)
* @param[in] memAddress memory address at which the dump will start
* @param[in] memSize maximum size (in bytes) of the dump.
*
* @return number of bytes written to memory.
*/
size_t DumpDenoisedAudioHeader(const char* filename, size_t dumpSize,
uint8_t* memAddress, size_t memSize);
/**
* @brief Write a EOF marker at the end of the dump memory.
*
* @param[in] memAddress memory address at which the dump will start
* @param[in] memSize maximum size (in bytes) of the dump.
*
* @return number of bytes written to memory.
*/
size_t DumpDenoisedAudioFooter(uint8_t *memAddress, size_t memSize);
/**
* @brief Dump the audio data to the memory
*
* @param[in] audioFrame The vector containg the audio data
* @param[in] memAddress memory address at which the dump will start
* @param[in] memSize maximum size (in bytes) of the dump.
*
* @return number of bytes written to memory.
*/
size_t DumpOutputDenoisedAudioFrame(const std::vector<int16_t> &audioFrame,
uint8_t *memAddress, size_t memSize);
} /* namespace app */
} /* namespace arm */
#endif /* NOISE_REDUCTION_EVT_HANDLER_HPP */
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