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https://github.com/eried/portapack-mayhem.git
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a558565886
Appropriating for use as a buffer accumulator that will save up enough audio samples to put into an audio DMA buffer.
73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
/*
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* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __SPECTRUM_COLLECTOR_H__
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#define __SPECTRUM_COLLECTOR_H__
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#include "dsp_types.hpp"
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#include "complex.hpp"
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#include "block_decimator.hpp"
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#include <cstdint>
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#include <array>
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#include "message.hpp"
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class SpectrumCollector {
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public:
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constexpr SpectrumCollector(
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) : channel_spectrum_decimator { 1 }
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{
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}
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void on_message(const Message* const message);
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void set_decimation_factor(const size_t decimation_factor);
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void feed(
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const buffer_c16_t& channel,
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const uint32_t filter_pass_frequency,
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const uint32_t filter_stop_frequency
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);
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private:
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BlockDecimator<complex16_t, 256> channel_spectrum_decimator;
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ChannelSpectrumFIFO fifo;
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volatile bool channel_spectrum_request_update { false };
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bool streaming { false };
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std::array<std::complex<float>, 256> channel_spectrum;
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uint32_t channel_spectrum_sampling_rate { 0 };
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uint32_t channel_filter_pass_frequency { 0 };
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uint32_t channel_filter_stop_frequency { 0 };
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void post_message(const buffer_c16_t& data);
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void set_state(const SpectrumStreamingConfigMessage& message);
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void start();
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void stop();
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void update();
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};
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#endif/*__SPECTRUM_COLLECTOR_H__*/
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