mirror of
https://github.com/f4exb/sdrangel.git
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230 lines
6.7 KiB
C++
230 lines
6.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017 Edouard Griffiths, F4EXB //
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// Copyright (C) 2017 Sergey Kostanbaev, Fairwaves Inc. //
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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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// //
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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 <errno.h>
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#include "xtrxinputsettings.h"
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#include "xtrxinputthread.h"
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XTRXInputThread::XTRXInputThread(DeviceXTRXShared* shared,
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SampleSinkFifo* sampleFifo,
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QObject* parent) :
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QThread(parent),
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m_running(false),
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m_convertBuffer(XTRX_BLOCKSIZE),
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m_sampleFifo(sampleFifo),
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m_log2Decim(0),
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m_fcPos(XTRXInputSettings::FC_POS_CENTER),
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m_shared(shared)
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{
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}
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XTRXInputThread::~XTRXInputThread()
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{
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stopWork();
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}
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void XTRXInputThread::startWork()
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{
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if (m_running) return; // return if running already
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xtrx_run_params params;
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xtrx_run_params_init(¶ms);
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params.dir = XTRX_RX;
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params.rx.chs = XTRX_CH_AB;
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params.rx.wfmt = XTRX_WF_16;
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params.rx.hfmt = XTRX_IQ_INT16;
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params.rx.flags |= XTRX_RSP_SISO_MODE;
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params.rx_stream_start = 2*8192;
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// TODO: replace this
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if (m_shared->m_channel == XTRX_CH_B)
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params.rx.flags |= XTRX_RSP_SWAP_AB;
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int res = xtrx_run_ex(m_shared->m_deviceParams->getDevice(),
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¶ms);
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if (res != 0) {
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qCritical("XTRXInputThread::startWork: could not start stream err:%d", res);
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} else {
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usleep(50000);
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qDebug("XTRXInputThread::startWork: stream started");
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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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m_startWaiter.wait(&m_startWaitMutex, 100);
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m_startWaitMutex.unlock();
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}
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void XTRXInputThread::stopWork()
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{
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if (!m_running) return; // return if not running
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m_running = false;
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int res = xtrx_stop(m_shared->m_deviceParams->getDevice(), XTRX_RX);
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wait();
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if (res != 0) {
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qCritical("XTRXInputThread::stopWork: could not stop stream");
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} else {
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usleep(50000);
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qDebug("XTRXInputThread::stopWork: stream stopped");
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}
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}
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void XTRXInputThread::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 XTRXInputThread::setFcPos(int fcPos)
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{
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m_fcPos = fcPos;
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}
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void XTRXInputThread::run()
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{
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int res;
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m_running = true;
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m_startWaiter.wakeAll();
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void* buffers[1] = { m_buf };
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xtrx_recv_ex_info_t nfo;
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nfo.samples = XTRX_BLOCKSIZE;
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nfo.buffer_count = 1;
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nfo.buffers = (void* const*)buffers;
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nfo.flags = RCVEX_DONT_INSER_ZEROS | RCVEX_DROP_OLD_ON_OVERFLOW;
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while (m_running)
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{
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//if ((res = LMS_RecvStream(m_stream, (void *) m_buf, XTRX_BLOCKSIZE, &metadata, 1000)) < 0)
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res = xtrx_recv_sync_ex(m_shared->m_deviceParams->getDevice(),
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&nfo);
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if (res < 0)
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{
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qCritical("XTRXInputThread::run read error: %d", res);
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break;
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}
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callback(m_buf, 2 * nfo.out_samples);
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}
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m_running = false;
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}
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// Decimate according to specified log2 (ex: log2=4 => decim=16)
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void XTRXInputThread::callback(const qint16* buf, qint32 len)
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{
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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_decimators.decimate1(&it, buf, len);
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}
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else
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{
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if (m_fcPos == 0) // Infra
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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_decimators.decimate2_inf(&it, buf, len);
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break;
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case 2:
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m_decimators.decimate4_inf(&it, buf, len);
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break;
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case 3:
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m_decimators.decimate8_inf(&it, buf, len);
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break;
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case 4:
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m_decimators.decimate16_inf(&it, buf, len);
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break;
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case 5:
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m_decimators.decimate32_inf(&it, buf, len);
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break;
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case 6:
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m_decimators.decimate64_inf(&it, buf, len);
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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) // Supra
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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_decimators.decimate2_sup(&it, buf, len);
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break;
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case 2:
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m_decimators.decimate4_sup(&it, buf, len);
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break;
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case 3:
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m_decimators.decimate8_sup(&it, buf, len);
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break;
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case 4:
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m_decimators.decimate16_sup(&it, buf, len);
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break;
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case 5:
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m_decimators.decimate32_sup(&it, buf, len);
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break;
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case 6:
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m_decimators.decimate64_sup(&it, buf, len);
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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 == 2) // Center
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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_decimators.decimate2_cen(&it, buf, len);
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break;
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case 2:
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m_decimators.decimate4_cen(&it, buf, len);
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break;
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case 3:
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m_decimators.decimate8_cen(&it, buf, len);
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break;
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case 4:
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m_decimators.decimate16_cen(&it, buf, len);
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break;
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case 5:
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m_decimators.decimate32_cen(&it, buf, len);
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break;
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case 6:
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m_decimators.decimate64_cen(&it, buf, len);
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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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