mirror of
https://github.com/f4exb/sdrangel.git
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286 lines
7.3 KiB
C++
286 lines
7.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
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// written by Christian Daniel //
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// Copyright (C) 2014 John Greb <hexameron@spam.no> //
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// Copyright (C) 2015-2020 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
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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 as version 3 of the License, or //
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// (at your option) 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 V3 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. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <QDebug>
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#include <stdio.h>
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#include <errno.h>
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#include <chrono>
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#include <thread>
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#include "dsp/samplesinkfifo.h"
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#include "audio/audiofifo.h"
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#include "fcdprothread.h"
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FCDProThread::FCDProThread(SampleSinkFifo* sampleFifo, AudioFifo *fcdFIFO, QObject* parent) :
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QThread(parent),
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m_fcdFIFO(fcdFIFO),
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m_running(false),
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m_log2Decim(0),
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m_fcPos(2),
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m_iqOrder(true),
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m_convertBuffer(fcd_traits<Pro>::convBufSize), // nb samples
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m_sampleFifo(sampleFifo)
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{
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start();
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}
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FCDProThread::~FCDProThread()
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{
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}
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void FCDProThread::startWork()
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{
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m_startWaitMutex.lock();
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start();
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while(!m_running)
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{
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m_startWaiter.wait(&m_startWaitMutex, 100);
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}
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m_startWaitMutex.unlock();
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}
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void FCDProThread::stopWork()
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{
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m_running = false;
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wait();
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}
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void FCDProThread::setLog2Decimation(unsigned int log2_decim)
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{
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m_log2Decim = log2_decim;
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}
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void FCDProThread::setFcPos(int fcPos)
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{
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m_fcPos = fcPos;
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}
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void FCDProThread::run()
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{
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m_running = true;
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qDebug("FCDProThread::run: start running loop");
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while (m_running)
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{
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if (m_iqOrder) {
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workIQ(fcd_traits<Pro>::convBufSize);
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} else {
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workQI(fcd_traits<Pro>::convBufSize);
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}
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std::this_thread::sleep_for(std::chrono::microseconds(200));
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}
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qDebug("FCDProThread::run: running loop stopped");
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m_running = false;
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}
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void FCDProThread::workIQ(unsigned int n_items)
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{
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uint32_t nbRead = m_fcdFIFO->read((unsigned char *) m_buf, n_items); // number of samples
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SampleVector::iterator it = m_convertBuffer.begin();
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if (m_log2Decim == 0)
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{
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m_decimatorsIQ.decimate1(&it, m_buf, 2*nbRead);
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}
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else
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{
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if (m_fcPos == 0) // Infradyne
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{
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switch (m_log2Decim)
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{
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case 1:
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m_decimatorsIQ.decimate2_inf(&it, m_buf, 2*nbRead);
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break;
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case 2:
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m_decimatorsIQ.decimate4_inf(&it, m_buf, 2*nbRead);
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break;
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case 3:
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m_decimatorsIQ.decimate8_inf(&it, m_buf, 2*nbRead);
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break;
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case 4:
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m_decimatorsIQ.decimate16_inf(&it, m_buf, 2*nbRead);
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break;
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case 5:
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m_decimatorsIQ.decimate32_inf(&it, m_buf, 2*nbRead);
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break;
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case 6:
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m_decimatorsIQ.decimate64_inf(&it, m_buf, 2*nbRead);
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break;
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default:
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break;
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}
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}
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else if (m_fcPos == 1) // Supradyne
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{
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switch (m_log2Decim)
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{
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case 1:
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m_decimatorsIQ.decimate2_sup(&it, m_buf, 2*nbRead);
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break;
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case 2:
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m_decimatorsIQ.decimate4_sup(&it, m_buf, 2*nbRead);
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break;
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case 3:
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m_decimatorsIQ.decimate8_sup(&it, m_buf, 2*nbRead);
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break;
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case 4:
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m_decimatorsIQ.decimate16_sup(&it, m_buf, 2*nbRead);
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break;
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case 5:
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m_decimatorsIQ.decimate32_sup(&it, m_buf, 2*nbRead);
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break;
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case 6:
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m_decimatorsIQ.decimate64_sup(&it, m_buf, 2*nbRead);
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break;
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default:
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break;
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}
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}
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else // Centered
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{
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switch (m_log2Decim)
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{
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case 1:
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m_decimatorsIQ.decimate2_cen(&it, m_buf, 2*nbRead);
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break;
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case 2:
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m_decimatorsIQ.decimate4_cen(&it, m_buf, 2*nbRead);
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break;
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case 3:
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m_decimatorsIQ.decimate8_cen(&it, m_buf, 2*nbRead);
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break;
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case 4:
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m_decimatorsIQ.decimate16_cen(&it, m_buf, 2*nbRead);
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break;
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case 5:
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m_decimatorsIQ.decimate32_cen(&it, m_buf, 2*nbRead);
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break;
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case 6:
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m_decimatorsIQ.decimate64_cen(&it, m_buf, 2*nbRead);
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break;
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default:
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break;
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}
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}
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}
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m_sampleFifo->write(m_convertBuffer.begin(), it);
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}
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void FCDProThread::workQI(unsigned int n_items)
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{
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uint32_t nbRead = m_fcdFIFO->read((unsigned char *) m_buf, n_items); // number of samples
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SampleVector::iterator it = m_convertBuffer.begin();
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if (m_log2Decim == 0)
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{
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m_decimatorsQI.decimate1(&it, m_buf, 2*nbRead);
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}
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else
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{
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if (m_fcPos == 0) // Infradyne
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{
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switch (m_log2Decim)
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{
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case 1:
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m_decimatorsQI.decimate2_inf(&it, m_buf, 2*nbRead);
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break;
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case 2:
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m_decimatorsQI.decimate4_inf(&it, m_buf, 2*nbRead);
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break;
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case 3:
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m_decimatorsQI.decimate8_inf(&it, m_buf, 2*nbRead);
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break;
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case 4:
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m_decimatorsQI.decimate16_inf(&it, m_buf, 2*nbRead);
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break;
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case 5:
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m_decimatorsQI.decimate32_inf(&it, m_buf, 2*nbRead);
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break;
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case 6:
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m_decimatorsQI.decimate64_inf(&it, m_buf, 2*nbRead);
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break;
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default:
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break;
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}
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}
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else if (m_fcPos == 1) // Supradyne
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{
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switch (m_log2Decim)
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{
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case 1:
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m_decimatorsQI.decimate2_sup(&it, m_buf, 2*nbRead);
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break;
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case 2:
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m_decimatorsQI.decimate4_sup(&it, m_buf, 2*nbRead);
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break;
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case 3:
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m_decimatorsQI.decimate8_sup(&it, m_buf, 2*nbRead);
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break;
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case 4:
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m_decimatorsQI.decimate16_sup(&it, m_buf, 2*nbRead);
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break;
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case 5:
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m_decimatorsQI.decimate32_sup(&it, m_buf, 2*nbRead);
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break;
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case 6:
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m_decimatorsQI.decimate64_sup(&it, m_buf, 2*nbRead);
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break;
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default:
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break;
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}
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}
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else // Centered
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{
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switch (m_log2Decim)
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{
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case 1:
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m_decimatorsQI.decimate2_cen(&it, m_buf, 2*nbRead);
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break;
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case 2:
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m_decimatorsQI.decimate4_cen(&it, m_buf, 2*nbRead);
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break;
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case 3:
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m_decimatorsQI.decimate8_cen(&it, m_buf, 2*nbRead);
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break;
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case 4:
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m_decimatorsQI.decimate16_cen(&it, m_buf, 2*nbRead);
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break;
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case 5:
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m_decimatorsQI.decimate32_cen(&it, m_buf, 2*nbRead);
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break;
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case 6:
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m_decimatorsQI.decimate64_cen(&it, m_buf, 2*nbRead);
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break;
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default:
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break;
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}
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}
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}
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m_sampleFifo->write(m_convertBuffer.begin(), it);
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}
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