portapack-mayhem/firmware/baseband/audio_input.hpp
2017-03-12 07:10:51 +00:00

62 lines
1.6 KiB
C++

/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __AUDIO_INPUT_H__
#define __AUDIO_INPUT_H__
#include "dsp_types.hpp"
#include "dsp_iir.hpp"
#include "dsp_squelch.hpp"
#include "stream_input.hpp"
#include <cstdint>
#include <memory>
class AudioInput {
public:
void configure(
const iir_biquad_config_t& hpf_config,
const float squelch_threshold = 0.0f
);
void read_audio_buffer(buffer_s16_t& audio);
/*void set_stream(std::unique_ptr<StreamInput> new_stream) {
stream = std::move(new_stream);
}*/
private:
static constexpr float k = 32768.0f;
static constexpr float ki = 1.0f / k;
IIRBiquadFilter hpf { };
//FMSquelch squelch { };
//std::unique_ptr<StreamInput> stream { };
//AudioStatsCollector audio_stats { };
};
#endif/*__AUDIO_INPUT_H__*/