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033c4e9a5b
* Updated style * Updated files * fixed new line * Updated spacing * File fix WIP * Updated to clang 13 * updated comment style * Removed old comment code
67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
/*
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* Copyright (C) 2014 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 __CHANNEL_STATS_COLLECTOR_H__
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#define __CHANNEL_STATS_COLLECTOR_H__
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#include "dsp_types.hpp"
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#include "message.hpp"
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#include "utility.hpp"
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#include <cstdint>
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#include <cstddef>
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#include <hal.h>
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class ChannelStatsCollector {
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public:
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template <typename Callback>
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void feed(const buffer_c16_t& src, Callback callback) {
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void* src_p = src.p;
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while (src_p < &src.p[src.count]) {
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const uint32_t sample = *__SIMD32(src_p)++;
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const uint32_t mag_sq = __SMUAD(sample, sample);
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if (mag_sq > max_squared) {
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max_squared = mag_sq;
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}
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}
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count += src.count;
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const size_t samples_per_update = src.sampling_rate * update_interval;
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if (count >= samples_per_update) {
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const float max_squared_f = max_squared;
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const int32_t max_db = mag2_to_dbv_norm(max_squared_f * (1.0f / (32768.0f * 32768.0f)));
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callback({max_db, count});
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max_squared = 0;
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count = 0;
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}
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}
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private:
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static constexpr float update_interval{0.1f};
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uint32_t max_squared{0};
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size_t count{0};
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};
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#endif /*__CHANNEL_STATS_COLLECTOR_H__*/
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