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/* ------------------------------------------------------------------
* Copyright (C) 2011 Martin Storsjo
* Copyright (C) 2017 Matthias P. Braendli
*
* 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.
* -------------------------------------------------------------------
*/
/*!
* \file AACDecoder.h
* \brief Uses FDK-AAC to decode the AAC format for loopback tests and
* to measure the audio level
*/
#pragma once
#include <fdk-aac/aacdecoder_lib.h>
#include <cstdint>
#include <cstddef>
#include <vector>
class AACDecoder {
public:
AACDecoder();
~AACDecoder();
AACDecoder(const AACDecoder&) = delete;
AACDecoder& operator=(const AACDecoder&) = delete;
void decode_frame(uint8_t *data, size_t len);
struct peak_t { int16_t peak_left; int16_t peak_right; };
peak_t get_peaks();
private:
void decode_au(uint8_t *data, size_t len);
bool m_decoder_set_up = false;
int m_channels = 0;
peak_t m_peak;
HANDLE_AACDECODER m_handle;
std::vector<uint8_t> m_output_frame;
};
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