portapack-mayhem/firmware/baseband/proc_wfm_audio.hpp
Jared Boone 58e6d26910 Move AudioOutput back to inside audio processor classes.
Was wasting precious RAM making it static. I lose 400 bytes of .text, not sure why, but I think the trade is worth it.
2016-01-16 13:56:23 -08:00

71 lines
2.0 KiB
C++

/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
*
* 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 __PROC_WFM_AUDIO_H__
#define __PROC_WFM_AUDIO_H__
#include "baseband_processor.hpp"
#include "dsp_decimate.hpp"
#include "dsp_demodulate.hpp"
#include "audio_output.hpp"
#include "spectrum_collector.hpp"
class WidebandFMAudio : public BasebandProcessor {
public:
void execute(const buffer_c8_t& buffer) override;
void on_message(const Message* const message) override;
private:
std::array<complex16_t, 512> dst;
const buffer_c16_t dst_buffer {
dst.data(),
dst.size()
};
const buffer_s16_t work_audio_buffer {
(int16_t*)dst.data(),
sizeof(dst) / sizeof(int16_t)
};
dsp::decimate::FIRC8xR16x24FS4Decim4 decim_0;
dsp::decimate::FIRC16xR16x16Decim2 decim_1;
uint32_t channel_filter_pass_f = 0;
uint32_t channel_filter_stop_f = 0;
dsp::demodulate::FM demod;
dsp::decimate::DecimateBy2CIC4Real audio_dec_1;
dsp::decimate::DecimateBy2CIC4Real audio_dec_2;
dsp::decimate::FIR64AndDecimateBy2Real audio_filter;
AudioOutput audio_output;
SpectrumCollector channel_spectrum;
size_t spectrum_interval_samples = 0;
size_t spectrum_samples = 0;
bool configured { false };
void configure(const WFMConfigureMessage& message);
};
#endif/*__PROC_WFM_AUDIO_H__*/