mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-28 16:59:47 -05:00
de81156223
* Advanced draft decim /4 just waterfall ok * apply some Kall's corrections + formatting * Tidy up both decim_factors * New refine optimizations * Format issues * more format issues ...mmmm * comments update * WIP Cleanup * WIP * WIP - add variant * Use std::visit to dispatch MultiDecimator -- fluent API * Clean up comments * Merge next and fix compilation * Fix odd loop in BlockDecimator * Clean up spectrum math * Descibe spectrum update math better, more clear math. * Apply spectrum interval correction at 1.5M * Increase replay buffer to handle x4 ovs --------- Co-authored-by: Brumi-2021 <ea3hqj@gmail.com>
134 lines
4.0 KiB
C++
134 lines
4.0 KiB
C++
/*
|
|
* Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc.
|
|
* Copyright (C) 2018 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 __PROC_CAPTURE_HPP__
|
|
#define __PROC_CAPTURE_HPP__
|
|
|
|
#include "baseband_processor.hpp"
|
|
#include "baseband_thread.hpp"
|
|
#include "rssi_thread.hpp"
|
|
|
|
#include "dsp_decimate.hpp"
|
|
#include "spectrum_collector.hpp"
|
|
#include "stream_input.hpp"
|
|
|
|
#include <array>
|
|
#include <memory>
|
|
#include <tuple>
|
|
#include <variant>
|
|
|
|
/* A decimator that just returns the source buffer. */
|
|
class NoopDecim {
|
|
public:
|
|
static constexpr int decimation_factor = 1;
|
|
|
|
template <typename Buffer>
|
|
Buffer execute(const Buffer& src, const Buffer&) {
|
|
// TODO: should this copy to 'dst'?
|
|
return {src.p, src.count, src.sampling_rate};
|
|
}
|
|
};
|
|
|
|
/* Decimator wrapper that can hold one of a set of decimators and dispatch at runtime. */
|
|
template <typename... Args>
|
|
class MultiDecimator {
|
|
public:
|
|
/* Dispatches to the underlying type's execute. */
|
|
template <typename Source, typename Destination>
|
|
Destination execute(
|
|
const Source& src,
|
|
const Destination& dst) {
|
|
return std::visit(
|
|
[&src, &dst](auto&& arg) -> Destination {
|
|
return arg.execute(src, dst);
|
|
},
|
|
decimator_);
|
|
}
|
|
|
|
size_t decimation_factor() const {
|
|
return std::visit(
|
|
[](auto&& arg) -> size_t {
|
|
return arg.decimation_factor;
|
|
},
|
|
decimator_);
|
|
}
|
|
|
|
/* Sets this decimator to a new instance of the specified decimator type.
|
|
* NB: The instance is returned by-ref so 'configure' can easily be called. */
|
|
template <typename Decimator>
|
|
Decimator& set() {
|
|
decimator_ = Decimator{};
|
|
return std::get<Decimator>(decimator_);
|
|
}
|
|
|
|
private:
|
|
std::variant<Args...> decimator_{};
|
|
};
|
|
|
|
class CaptureProcessor : public BasebandProcessor {
|
|
public:
|
|
CaptureProcessor();
|
|
|
|
void execute(const buffer_c8_t& buffer) override;
|
|
void on_message(const Message* const message) override;
|
|
|
|
private:
|
|
size_t baseband_fs = 3072000; // aka: sample_rate
|
|
static constexpr auto spectrum_rate_hz = 50.0f;
|
|
|
|
std::array<complex16_t, 512> dst{};
|
|
const buffer_c16_t dst_buffer{
|
|
dst.data(),
|
|
dst.size()};
|
|
|
|
/* The actual type will be configured depending on the sample rate. */
|
|
MultiDecimator<
|
|
dsp::decimate::FIRC8xR16x24FS4Decim4,
|
|
dsp::decimate::FIRC8xR16x24FS4Decim8>
|
|
decim_0{};
|
|
MultiDecimator<
|
|
dsp::decimate::FIRC16xR16x16Decim2,
|
|
dsp::decimate::FIRC16xR16x32Decim8,
|
|
NoopDecim>
|
|
decim_1{};
|
|
|
|
int32_t channel_filter_low_f = 0;
|
|
int32_t channel_filter_high_f = 0;
|
|
int32_t channel_filter_transition = 0;
|
|
|
|
std::unique_ptr<StreamInput> stream{};
|
|
|
|
SpectrumCollector channel_spectrum{};
|
|
size_t spectrum_interval_samples = 0;
|
|
size_t spectrum_samples = 0;
|
|
|
|
/* NB: Threads should be the last members in the class definition. */
|
|
BasebandThread baseband_thread{
|
|
baseband_fs, this, baseband::Direction::Receive, /*auto_start*/ false};
|
|
RSSIThread rssi_thread{};
|
|
|
|
void sample_rate_config(const SampleRateConfigMessage& message);
|
|
void capture_config(const CaptureConfigMessage& message);
|
|
};
|
|
|
|
#endif /*__PROC_CAPTURE_HPP__*/
|