mirror of
https://github.com/f4exb/sdrangel.git
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867 lines
28 KiB
C++
867 lines
28 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017 Edouard Griffiths, F4EXB //
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// Copyright (C) 2021 Jon Beniston, M7RCE //
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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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#define BOOST_CHRONO_HEADER_ONLY
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#include <boost/chrono/chrono.hpp>
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//#include <time.h>
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#include <QDebug>
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#include <QNetworkAccessManager>
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#include <QNetworkReply>
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#include <QBuffer>
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#include <QUdpSocket>
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#include <QHostAddress>
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#include <QNetworkDatagram>
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extern "C"
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{
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#include <libavcodec/avcodec.h>
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#include <libavformat/avformat.h>
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}
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#include "dsp/dspcommands.h"
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#include "device/deviceapi.h"
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#include "util/db.h"
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#include "util/messagequeue.h"
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#include "datvmodreport.h"
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#include "datvmodsource.h"
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#ifdef _WIN32
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#include <winsock.h>
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#pragma comment(lib, "Ws2_32.lib")
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#endif
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const int DATVModSource::m_levelNbSamples = 10000; // every 10ms
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// Get transport stream bitrate from file
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int DATVModSource::getTSBitrate(const QString& filename)
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{
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AVFormatContext *fmtCtx = nullptr;
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QByteArray ba = filename.toLocal8Bit();
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const char *filenameChars = ba.data();
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if (avformat_open_input(&fmtCtx, filenameChars, nullptr, nullptr) < 0)
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{
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qCritical() << "DATVModSource: Could not open source file " << filename;
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return -1;
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}
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if (avformat_find_stream_info(fmtCtx, nullptr) < 0)
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{
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qCritical() << "DATVModSource: Could not find stream information for " << filename;
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avformat_close_input(&fmtCtx);
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return -1;
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}
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int bitrate = fmtCtx->bit_rate;
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avformat_close_input(&fmtCtx);
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return bitrate;
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}
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// Get data bitrate (i.e. excluding FEC overhead)
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int DATVModSource::getDVBSDataBitrate(const DATVModSettings& settings) const
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{
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float fecFactor;
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float plFactor;
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float bitsPerSymbol;
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switch (settings.m_modulation)
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{
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case DATVModSettings::BPSK:
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bitsPerSymbol = 1.0f;
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break;
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case DATVModSettings::QPSK:
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bitsPerSymbol = 2.0f;
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break;
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case DATVModSettings::PSK8:
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bitsPerSymbol = 3.0f;
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break;
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case DATVModSettings::APSK16:
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bitsPerSymbol = 4.0f;
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break;
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case DATVModSettings::APSK32:
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bitsPerSymbol = 5.0f;
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break;
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}
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if (settings.m_standard == DATVModSettings::DVB_S)
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{
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float rsFactor;
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float convFactor;
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rsFactor = DVBS::tsPacketLen/(float)DVBS::rsPacketLen;
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switch (settings.m_fec)
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{
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case DATVModSettings::FEC12:
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convFactor = 1.0f/2.0f;
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break;
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case DATVModSettings::FEC23:
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convFactor = 2.0f/3.0f;
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break;
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case DATVModSettings::FEC34:
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convFactor = 3.0f/4.0f;
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break;
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case DATVModSettings::FEC56:
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convFactor = 5.0f/6.0f;
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break;
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case DATVModSettings::FEC78:
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convFactor = 7.0f/8.0f;
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break;
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case DATVModSettings::FEC45:
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convFactor = 4.0f/5.0f;
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break;
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case DATVModSettings::FEC89:
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convFactor = 8.0f/9.0f;
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break;
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case DATVModSettings::FEC910:
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convFactor = 9.0f/10.0f;
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break;
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case DATVModSettings::FEC14:
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convFactor = 1.0f/4.0f;
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break;
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case DATVModSettings::FEC13:
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convFactor = 1.0f/3.0f;
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break;
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case DATVModSettings::FEC25:
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convFactor = 2.0f/5.0f;
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break;
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case DATVModSettings::FEC35:
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convFactor = 3.0f/5.0f;
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break;
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}
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fecFactor = rsFactor * convFactor;
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plFactor = 1.0f;
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}
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else
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{
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// For normal frames
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int codedBlockSize = 64800;
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int uncodedBlockSize;
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int bbHeaderBits = 80;
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// See table 5a in DVBS2 spec
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switch (settings.m_fec)
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{
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case DATVModSettings::FEC12:
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uncodedBlockSize = 32208;
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break;
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case DATVModSettings::FEC23:
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uncodedBlockSize = 43040;
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break;
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case DATVModSettings::FEC34:
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uncodedBlockSize = 48408;
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break;
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case DATVModSettings::FEC56:
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uncodedBlockSize = 53840;
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break;
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case DATVModSettings::FEC45:
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uncodedBlockSize = 51648;
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break;
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case DATVModSettings::FEC89:
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uncodedBlockSize = 57472;
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break;
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case DATVModSettings::FEC910:
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uncodedBlockSize = 58192;
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break;
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case DATVModSettings::FEC14:
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uncodedBlockSize = 16008;
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break;
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case DATVModSettings::FEC13:
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uncodedBlockSize = 21408;
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break;
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case DATVModSettings::FEC25:
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uncodedBlockSize = 25728;
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break;
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case DATVModSettings::FEC35:
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uncodedBlockSize = 38688;
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break;
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default:
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qDebug() << "DATVModSource::getDVBSDataBitrate: Unsupported DVB-S2 code rate";
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break;
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}
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fecFactor = (uncodedBlockSize-bbHeaderBits)/(float)codedBlockSize;
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float symbolsPerFrame = codedBlockSize/bitsPerSymbol;
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// 90 symbols for PL header
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plFactor = symbolsPerFrame / (symbolsPerFrame + 90.0f);
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}
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return std::round(settings.m_symbolRate * bitsPerSymbol * fecFactor * plFactor);
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}
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void DATVModSource::checkBitrates()
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{
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int dataBitrate = getDVBSDataBitrate(m_settings);
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qDebug() << "MPEG-TS bitrate: " << m_mpegTSBitrate;
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qDebug() << "DVB data bitrate: " << dataBitrate;
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if (dataBitrate < m_mpegTSBitrate)
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qWarning() << "DVB data bitrate is lower than the bitrate of the MPEG transport stream";
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m_tsRatio = m_mpegTSBitrate/(float)dataBitrate;
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}
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DATVModSource::DATVModSource() :
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m_mpegTSBitrate(0),
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m_mpegTSSize(0),
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m_sampleIdx(0),
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m_frameIdx(0),
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m_frameCount(0),
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m_tsRatio(0.0f),
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m_symbolCount(0),
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m_symbolSel(0),
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m_symbolIdx(0),
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m_samplesPerSymbol(1),
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m_udpSocket(nullptr),
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m_udpByteCount(0),
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m_udpAbsByteCount(0),
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m_udpBufferIdx(0),
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m_udpBufferCount(0),
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m_udpMaxBufferUtilization(0),
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m_sampleRate(0),
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m_channelSampleRate(1000000),
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m_channelFrequencyOffset(0),
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m_tsFileOK(false),
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m_messageQueueToGUI(nullptr)
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{
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m_interpolatorDistanceRemain = 0.0f;
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m_interpolatorDistance = 1.0f;
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applyChannelSettings(m_channelSampleRate, m_channelFrequencyOffset, true);
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applySettings(m_settings, true);
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}
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DATVModSource::~DATVModSource()
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{
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}
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void DATVModSource::pull(SampleVector::iterator begin, unsigned int nbSamples)
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{
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std::for_each(
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begin,
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begin + nbSamples,
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[this](Sample& s) {
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pullOne(s);
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}
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);
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}
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void DATVModSource::prefetch(unsigned int nbSamples)
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{
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(void) nbSamples;
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}
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void DATVModSource::pullOne(Sample& sample)
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{
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if (m_settings.m_channelMute)
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{
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sample.m_real = 0.0f;
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sample.m_imag = 0.0f;
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return;
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}
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Complex ci;
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if (m_sampleRate == m_channelSampleRate) // no interpolation nor decimation
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{
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modulateSample();
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pullFinalize(m_modSample, sample);
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}
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else
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{
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if (m_interpolatorDistance > 1.0f) // decimate
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{
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modulateSample();
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while (!m_interpolator.decimate(&m_interpolatorDistanceRemain, m_modSample, &ci))
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modulateSample();
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}
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else
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{
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if (m_interpolator.interpolate(&m_interpolatorDistanceRemain, m_modSample, &ci))
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modulateSample();
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}
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m_interpolatorDistanceRemain += m_interpolatorDistance;
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pullFinalize(ci, sample);
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}
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}
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void DATVModSource::pullFinalize(Complex& ci, Sample& sample)
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{
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ci *= m_carrierNco.nextIQ(); // shift to carrier frequency
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double magsq = ci.real() * ci.real() + ci.imag() * ci.imag();
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m_movingAverage(magsq);
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sample.m_real = (FixReal) (ci.real() * SDR_TX_SCALEF);
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sample.m_imag = (FixReal) (ci.imag() * SDR_TX_SCALEF);
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}
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void DATVModSource::modulateSample()
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{
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Real i, q;
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if (m_sampleIdx == 0)
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{
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while (m_symbolCount == 0)
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{
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bool tsFileReady = (m_settings.m_source == DATVModSettings::SourceFile)
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&& m_settings.m_tsFilePlay
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&& m_tsFileOK
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&& !m_mpegTSStream.eof();
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if (tsFileReady
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&& (m_frameIdx/(m_frameCount+1.0f) < m_tsRatio) // Insert null packets if file rate is lower than DVB-S data rate
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)
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{
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// Read transport stream packet from file
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m_mpegTSStream.read((char *)m_mpegTS, sizeof(m_mpegTS));
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m_frameIdx++;
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m_frameCount++;
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}
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else if ((m_settings.m_source == DATVModSettings::SourceUDP)
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&& (m_udpBufferIdx < m_udpBufferCount)
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)
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{
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// Copy transport stream packet from UDP buffer
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memcpy(m_mpegTS, &m_udpBuffer[m_udpBufferIdx*sizeof(m_mpegTS)], sizeof(m_mpegTS));
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m_udpBufferIdx++;
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}
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else if ((m_settings.m_source == DATVModSettings::SourceUDP)
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&& ((m_udpSocket != nullptr) && m_udpSocket->hasPendingDatagrams())
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)
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{
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updateUDPBufferUtilization();
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// Get transport stream packets from UDP - buffer if more than one
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QNetworkDatagram datagram = m_udpSocket->receiveDatagram();
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QByteArray ba = datagram.data();
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int size = ba.size();
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char *data = ba.data();
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if (size <= (int)sizeof(m_udpBuffer))
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{
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memcpy(m_mpegTS, data, sizeof(m_mpegTS));
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if (size >= (int)sizeof(m_mpegTS)) {
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memcpy(&m_udpBuffer[0], &data[sizeof(m_mpegTS)], size - sizeof(m_mpegTS));
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}
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m_udpBufferIdx = 0;
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m_udpBufferCount = (size / sizeof(m_mpegTS)) - 1;
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if (size % sizeof(m_mpegTS) != 0) {
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qWarning() << "DATVModSource::modulateSample: UDP packet size (" << size << ") is not a multiple of " << sizeof(m_mpegTS);
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}
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}
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else
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{
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qWarning() << "DATVModSource::modulateSample: UDP packet size (" << size << ") exceeds buffer size " << sizeof(m_udpBuffer) << ")";
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}
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m_udpByteCount += ba.size();
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m_udpAbsByteCount += ba.size();
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}
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else
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{
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// Insert null packet. PID=0x1fff
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memset(m_mpegTS, 0, sizeof(m_mpegTS));
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m_mpegTS[0] = 0x47; // Sync byte
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m_mpegTS[1] = 0x01;
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m_mpegTS[2] = 0xff;
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m_mpegTS[3] = 0xff;
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m_mpegTS[4] = 0x10;
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if (tsFileReady) {
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m_frameCount++;
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}
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//qDebug() << "null " << tsFileReady << " " << (m_frameIdx/(m_frameCount+1.0f)) << " " << m_tsRatio;
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}
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if (m_settings.m_standard == DATVModSettings::DVB_S)
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{
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// Encode using DVB-S
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m_symbolCount = m_dvbs.encode(m_mpegTS, m_iqSymbols);
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}
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else
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{
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// Encode using DVB-S2
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m_symbolCount = m_dvbs2.s2_add_ts_frame((u8 *)m_mpegTS);
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m_plFrame = m_dvbs2.pl_get_frame();
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}
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// Loop file if we reach the end
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if ((m_settings.m_source == DATVModSettings::SourceFile)
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&& (m_frameIdx*DVBS::tsPacketLen >= m_mpegTSSize)
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&& m_settings.m_tsFilePlayLoop
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)
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{
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m_mpegTSStream.clear();
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m_mpegTSStream.seekg(0, std::ios::beg);
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m_frameIdx = 0;
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m_frameCount = 0;
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}
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m_symbolIdx = 0;
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}
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if (m_settings.m_modulation == DATVModSettings::BPSK)
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{
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// BPSK
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i = m_pulseShapeI.filter(m_iqSymbols[m_symbolIdx*2+m_symbolSel] ? -1.0f : 1.0f);
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q = 0.0f;
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if (m_symbolSel == 1)
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{
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m_symbolIdx++;
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m_symbolCount--;
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m_symbolSel = 0;
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}
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else
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{
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m_symbolSel++;
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}
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}
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else
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{
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// QPSK
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if (m_settings.m_standard == DATVModSettings::DVB_S)
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{
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// Does the 45-degree rotation matter?
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// Makes a little difference to amplitude of filter output, but we could scale that
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i = m_pulseShapeI.filter(m_iqSymbols[m_symbolIdx*2] ? -1.0f : 1.0f);
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q = m_pulseShapeQ.filter(m_iqSymbols[m_symbolIdx*2+1] ? -1.0f : 1.0f);
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/*
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int sym = (m_iqSymbols[m_symbolIdx*2] << 1) | m_iqSymbols[m_symbolIdx*2+1];
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if (sym == 0)
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{
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i = m_pulseShapeI.filter(cos(M_PI/4));
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q = m_pulseShapeQ.filter(sin(M_PI/4));
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}
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else if (sym == 1)
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{
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i = m_pulseShapeI.filter(cos(7*M_PI/4));
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q = m_pulseShapeQ.filter(sin(7*M_PI/4));
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}
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else if (sym == 2)
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{
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i = m_pulseShapeI.filter(cos(3*M_PI/4));
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q = m_pulseShapeQ.filter(sin(3*M_PI/4));
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}
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else if (sym == 3)
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{
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i = m_pulseShapeI.filter(cos(5*M_PI/4));
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q = m_pulseShapeQ.filter(sin(5*M_PI/4));
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}
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*/
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m_symbolIdx++;
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m_symbolCount--;
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}
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else
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{
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// First 90 symbols of DVB-S2 are pi/2 BPSK, then remaining symbols are in specified modulation
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i = m_pulseShapeI.filter(m_plFrame[m_symbolIdx].re/32767.0);
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q = m_pulseShapeQ.filter(m_plFrame[m_symbolIdx].im/32767.0);
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m_symbolIdx++;
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m_symbolCount--;
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}
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}
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}
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else
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{
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i = m_pulseShapeI.filter(0.0f);
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q = m_pulseShapeQ.filter(0.0f);
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}
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m_sampleIdx++;
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if (m_sampleIdx >= m_samplesPerSymbol) {
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m_sampleIdx = 0;
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}
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m_modSample.real(i);
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m_modSample.imag(q);
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// These levels aren't currently used in the GUI
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Real t = std::abs(m_modSample);
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calculateLevel(t);
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}
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void DATVModSource::calculateLevel(Real& sample)
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{
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if (m_levelCalcCount < m_levelNbSamples)
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{
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m_peakLevel = std::max(std::fabs(m_peakLevel), sample);
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m_levelSum += sample * sample;
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m_levelCalcCount++;
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}
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else
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{
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m_rmsLevel = std::sqrt(m_levelSum / m_levelNbSamples);
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m_peakLevelOut = m_peakLevel;
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m_peakLevel = 0.0f;
|
|
m_levelSum = 0.0f;
|
|
m_levelCalcCount = 0;
|
|
}
|
|
}
|
|
|
|
void DATVModSource::openTsFile(const QString& fileName)
|
|
{
|
|
m_tsFileOK = false;
|
|
m_mpegTSBitrate = getTSBitrate(fileName);
|
|
|
|
if (m_mpegTSBitrate > 0)
|
|
{
|
|
m_mpegTSStream.open(qPrintable(fileName), std::ifstream::binary);
|
|
if (m_mpegTSStream.is_open())
|
|
{
|
|
m_mpegTSStream.seekg (0, m_mpegTSStream.end);
|
|
m_mpegTSSize = m_mpegTSStream.tellg();
|
|
m_mpegTSStream.seekg (0, m_mpegTSStream.beg);
|
|
m_frameIdx = 0;
|
|
m_frameCount = 0;
|
|
m_tsFileOK = true;
|
|
}
|
|
checkBitrates();
|
|
}
|
|
else
|
|
qDebug() << "DATVModSource::openTsFile: Failed to get bitrate for transport stream file: " << fileName;
|
|
|
|
if (m_tsFileOK)
|
|
{
|
|
m_settings.m_tsFileName = fileName;
|
|
|
|
if (getMessageQueueToGUI())
|
|
{
|
|
DATVModReport::MsgReportTsFileSourceStreamData *report;
|
|
report = DATVModReport::MsgReportTsFileSourceStreamData::create(m_mpegTSBitrate, m_mpegTSSize);
|
|
getMessageQueueToGUI()->push(report);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
m_settings.m_tsFileName.clear();
|
|
qDebug() << "DATVModSource::openTsFile: Cannot open file: " << fileName;
|
|
}
|
|
}
|
|
|
|
void DATVModSource::seekTsFileStream(int seekPercentage)
|
|
{
|
|
if (m_tsFileOK)
|
|
{
|
|
m_frameIdx = ((m_mpegTSSize / DVBS::tsPacketLen) * seekPercentage) / 100;
|
|
m_mpegTSStream.seekg (m_frameIdx * (std::streampos)DVBS::tsPacketLen, m_mpegTSStream.beg);
|
|
m_frameCount = (int)(m_frameIdx / m_tsRatio);
|
|
}
|
|
}
|
|
|
|
void DATVModSource::reportTsFileSourceStreamTiming()
|
|
{
|
|
int framesCount = m_tsFileOK ? m_frameIdx : 0;
|
|
|
|
if (getMessageQueueToGUI())
|
|
getMessageQueueToGUI()->push(DATVModReport::MsgReportTsFileSourceStreamTiming::create(framesCount));
|
|
}
|
|
|
|
void DATVModSource::reportUDPBitrate()
|
|
{
|
|
boost::chrono::duration<double> sec = boost::chrono::steady_clock::now() - m_udpTimingStart;
|
|
double seconds = sec.count();
|
|
int bitrate = seconds > 0.0 ? m_udpByteCount * 8 / seconds : 0;
|
|
m_udpTimingStart = boost::chrono::steady_clock::now();
|
|
m_udpByteCount = 0;
|
|
|
|
if (getMessageQueueToGUI()) {
|
|
getMessageQueueToGUI()->push(DATVModReport::MsgReportUDPBitrate::create(bitrate));
|
|
}
|
|
}
|
|
|
|
void DATVModSource::updateUDPBufferUtilization()
|
|
{
|
|
#ifdef _WIN32
|
|
u_long count;
|
|
ioctlsocket(m_udpSocket->socketDescriptor(), FIONREAD, &count);
|
|
if (count > m_udpMaxBufferUtilization) {
|
|
m_udpMaxBufferUtilization = count;
|
|
}
|
|
#else
|
|
// On linux, ioctl(s, SIOCINQ, &count); only returns length of first datagram, so we can't support this
|
|
#endif
|
|
}
|
|
|
|
void DATVModSource::reportUDPBufferUtilization()
|
|
{
|
|
// Report maximum utilization since last call
|
|
updateUDPBufferUtilization();
|
|
|
|
if (getMessageQueueToGUI())
|
|
{
|
|
getMessageQueueToGUI()->push(DATVModReport::MsgReportUDPBufferUtilization::create(
|
|
m_udpMaxBufferUtilization / (float)DATVModSettings::m_udpBufferSize * 100.0));
|
|
}
|
|
|
|
m_udpMaxBufferUtilization = 0;
|
|
}
|
|
|
|
void DATVModSource::applyChannelSettings(int channelSampleRate, int channelFrequencyOffset, bool force)
|
|
{
|
|
qDebug() << "DATVModSource::applyChannelSettings:"
|
|
<< " channelSampleRate: " << channelSampleRate
|
|
<< " channelFrequencyOffset: " << channelFrequencyOffset;
|
|
|
|
if ((channelFrequencyOffset != m_channelFrequencyOffset) ||
|
|
(channelSampleRate != m_channelSampleRate) || force)
|
|
{
|
|
m_carrierNco.setFreq(channelFrequencyOffset, channelSampleRate);
|
|
}
|
|
|
|
if ((channelSampleRate != m_channelSampleRate) || force)
|
|
{
|
|
if (m_settings.m_symbolRate > 0)
|
|
{
|
|
m_sampleRate = (channelSampleRate/m_settings.m_symbolRate)*m_settings.m_symbolRate;
|
|
|
|
// Create interpolator if not integer multiple
|
|
if (m_sampleRate != channelSampleRate)
|
|
{
|
|
m_interpolatorDistanceRemain = 0;
|
|
m_interpolatorDistance = (Real) m_sampleRate / (Real) channelSampleRate;
|
|
m_interpolator.create(32, m_sampleRate, m_settings.m_rfBandwidth / 2.2f, 3.0);
|
|
}
|
|
if (getMessageQueueToGUI())
|
|
{
|
|
getMessageQueueToGUI()->push(DATVModReport::MsgReportRates::create(
|
|
channelSampleRate,
|
|
m_sampleRate,
|
|
getDVBSDataBitrate(m_settings)));
|
|
}
|
|
}
|
|
}
|
|
|
|
m_channelSampleRate = channelSampleRate;
|
|
m_channelFrequencyOffset = channelFrequencyOffset;
|
|
|
|
if (m_settings.m_symbolRate > 0)
|
|
m_samplesPerSymbol = m_channelSampleRate/m_settings.m_symbolRate;
|
|
|
|
m_pulseShapeI.create(m_settings.m_rollOff, 8, m_samplesPerSymbol, false);
|
|
m_pulseShapeQ.create(m_settings.m_rollOff, 8, m_samplesPerSymbol, false);
|
|
}
|
|
|
|
void DATVModSource::applySettings(const DATVModSettings& settings, bool force)
|
|
{
|
|
qDebug() << "DATVModSource::applySettings:"
|
|
<< " m_inputFrequencyOffset: " << settings.m_inputFrequencyOffset
|
|
<< " m_rfBandwidth: " << settings.m_rfBandwidth
|
|
<< " m_source: " << (int) settings.m_source
|
|
<< " m_standard: " << (int) settings.m_standard
|
|
<< " m_modulation: " << (int) settings.m_modulation
|
|
<< " m_fec: " << (int) settings.m_fec
|
|
<< " m_symbolRate: " << (int) settings.m_symbolRate
|
|
<< " m_rollOff: " << (int) settings.m_rollOff
|
|
<< " m_tsFilePlayLoop: " << settings.m_tsFilePlayLoop
|
|
<< " m_tsFilePlay: " << settings.m_tsFilePlay
|
|
<< " m_udpAddress: " << settings.m_udpAddress
|
|
<< " m_udpPort: " << settings.m_udpPort
|
|
<< " m_channelMute: " << settings.m_channelMute
|
|
<< " force: " << force;
|
|
|
|
if ((settings.m_rfBandwidth != m_settings.m_rfBandwidth)
|
|
|| (settings.m_modulation != m_settings.m_modulation)
|
|
|| (settings.m_symbolRate != m_settings.m_symbolRate)
|
|
|| force)
|
|
{
|
|
if (settings.m_symbolRate > 0)
|
|
{
|
|
m_sampleRate = (m_channelSampleRate/settings.m_symbolRate)*settings.m_symbolRate;
|
|
|
|
if (m_sampleRate != m_channelSampleRate)
|
|
{
|
|
m_interpolatorDistanceRemain = 0;
|
|
m_interpolatorDistance = (Real) m_sampleRate / (Real) m_channelSampleRate;
|
|
m_interpolator.create(32, m_sampleRate, settings.m_rfBandwidth / 2.2f, 3.0);
|
|
}
|
|
if (getMessageQueueToGUI())
|
|
{
|
|
getMessageQueueToGUI()->push(DATVModReport::MsgReportRates::create(
|
|
m_channelSampleRate, m_sampleRate,
|
|
getDVBSDataBitrate(settings)));
|
|
}
|
|
}
|
|
else
|
|
qWarning() << "DATVModSource::applySettings: symbolRate must be greater than 0.";
|
|
}
|
|
|
|
if ((settings.m_source != m_settings.m_source)
|
|
|| (settings.m_udpAddress != m_settings.m_udpAddress)
|
|
|| (settings.m_udpPort != m_settings.m_udpPort)
|
|
|| force)
|
|
{
|
|
if (m_udpSocket)
|
|
{
|
|
m_udpSocket->close();
|
|
delete m_udpSocket;
|
|
m_udpSocket = nullptr;
|
|
}
|
|
if (settings.m_source == DATVModSettings::SourceUDP)
|
|
{
|
|
m_udpSocket = new QUdpSocket();
|
|
m_udpSocket->bind(QHostAddress(settings.m_udpAddress), settings.m_udpPort);
|
|
m_udpSocket->setSocketOption(QAbstractSocket::ReceiveBufferSizeSocketOption, DATVModSettings::m_udpBufferSize);
|
|
m_udpTimingStart = boost::chrono::steady_clock::now();
|
|
m_udpByteCount = 0;
|
|
m_udpAbsByteCount = 0;
|
|
}
|
|
}
|
|
|
|
if ((settings.m_standard != m_settings.m_standard)
|
|
|| (settings.m_modulation != m_settings.m_modulation)
|
|
|| force)
|
|
{
|
|
m_symbolSel = 0;
|
|
m_symbolIdx = 0;
|
|
m_symbolCount = 0;
|
|
m_sampleIdx = 0;
|
|
}
|
|
|
|
if ((settings.m_standard != m_settings.m_standard)
|
|
|| (settings.m_modulation != m_settings.m_modulation)
|
|
|| (settings.m_fec != m_settings.m_fec)
|
|
|| (settings.m_rollOff != m_settings.m_rollOff)
|
|
|| force)
|
|
{
|
|
if (settings.m_standard == DATVModSettings::DVB_S)
|
|
{
|
|
switch (settings.m_fec)
|
|
{
|
|
case DATVModSettings::FEC12:
|
|
m_dvbs.setCodeRate(DVBS::RATE_1_2);
|
|
break;
|
|
case DATVModSettings::FEC23:
|
|
m_dvbs.setCodeRate(DVBS::RATE_2_3);
|
|
break;
|
|
case DATVModSettings::FEC34:
|
|
m_dvbs.setCodeRate(DVBS::RATE_3_4);
|
|
break;
|
|
case DATVModSettings::FEC56:
|
|
m_dvbs.setCodeRate(DVBS::RATE_5_6);
|
|
break;
|
|
case DATVModSettings::FEC78:
|
|
m_dvbs.setCodeRate(DVBS::RATE_7_8);
|
|
break;
|
|
default:
|
|
qCritical() << "DATVModSource::applySettings: Unsupported FEC code rate for DVB-S: " << settings.m_fec;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
m_dvbs2Format.frame_type = FRAME_NORMAL;
|
|
m_dvbs2Format.pilots = 0; // PILOTS_OFF;
|
|
m_dvbs2Format.dummy_frame = 0;
|
|
m_dvbs2Format.null_deletion = 0;
|
|
m_dvbs2Format.intface = M_ACM; // Unused?
|
|
m_dvbs2Format.broadcasting = 1;
|
|
|
|
switch (settings.m_modulation)
|
|
{
|
|
case DATVModSettings::QPSK:
|
|
m_dvbs2Format.constellation = M_QPSK;
|
|
break;
|
|
case DATVModSettings::PSK8:
|
|
m_dvbs2Format.constellation = M_8PSK;
|
|
break;
|
|
case DATVModSettings::APSK16:
|
|
m_dvbs2Format.constellation = M_16APSK;
|
|
break;
|
|
case DATVModSettings::APSK32:
|
|
m_dvbs2Format.constellation = M_32APSK;
|
|
break;
|
|
default:
|
|
qDebug() << "DATVModSource::applySettings: Unsupported modulation for DVB-S2";
|
|
break;
|
|
}
|
|
|
|
switch (settings.m_fec)
|
|
{
|
|
case DATVModSettings::FEC12:
|
|
m_dvbs2Format.code_rate = CR_1_2;
|
|
break;
|
|
case DATVModSettings::FEC23:
|
|
m_dvbs2Format.code_rate = CR_2_3;
|
|
break;
|
|
case DATVModSettings::FEC34:
|
|
m_dvbs2Format.code_rate = CR_3_4;
|
|
break;
|
|
case DATVModSettings::FEC56:
|
|
m_dvbs2Format.code_rate = CR_5_6;
|
|
break;
|
|
case DATVModSettings::FEC45:
|
|
m_dvbs2Format.code_rate = CR_4_5;
|
|
break;
|
|
case DATVModSettings::FEC89:
|
|
m_dvbs2Format.code_rate = CR_8_9;
|
|
break;
|
|
case DATVModSettings::FEC910:
|
|
m_dvbs2Format.code_rate = CR_9_10;
|
|
break;
|
|
case DATVModSettings::FEC14:
|
|
m_dvbs2Format.code_rate = CR_1_4;
|
|
break;
|
|
case DATVModSettings::FEC13:
|
|
m_dvbs2Format.code_rate = CR_1_3;
|
|
break;
|
|
case DATVModSettings::FEC25:
|
|
m_dvbs2Format.code_rate = CR_2_5;
|
|
break;
|
|
case DATVModSettings::FEC35:
|
|
m_dvbs2Format.code_rate = CR_3_5;
|
|
break;
|
|
default:
|
|
qDebug() << "DATVModSource::getDVBSDataBitrate: Unsupported code rate for DVB-S2";
|
|
break;
|
|
}
|
|
|
|
if (settings.m_rollOff == 0.35f)
|
|
m_dvbs2Format.roll_off = RO_0_35;
|
|
else if (settings.m_rollOff == 0.25f)
|
|
m_dvbs2Format.roll_off = RO_0_25;
|
|
else
|
|
m_dvbs2Format.roll_off = RO_0_20;
|
|
|
|
m_dvbs2.s2_set_configure(&m_dvbs2Format);
|
|
}
|
|
if (getMessageQueueToGUI())
|
|
{
|
|
getMessageQueueToGUI()->push(DATVModReport::MsgReportRates::create(
|
|
m_channelSampleRate, m_sampleRate,
|
|
getDVBSDataBitrate(settings)));
|
|
}
|
|
}
|
|
|
|
m_settings = settings;
|
|
|
|
if (m_settings.m_symbolRate > 0)
|
|
m_samplesPerSymbol = m_channelSampleRate/m_settings.m_symbolRate;
|
|
|
|
m_pulseShapeI.create(m_settings.m_rollOff, 8, m_samplesPerSymbol, false);
|
|
m_pulseShapeQ.create(m_settings.m_rollOff, 8, m_samplesPerSymbol, false);
|
|
|
|
checkBitrates();
|
|
}
|