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638 lines
16 KiB
C++
638 lines
16 KiB
C++
/*
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Copyright (C) 2019-2021 Doug McLain
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <iostream>
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#include <cstring>
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#include "xrf.h"
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#include "CRCenc.h"
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#include "MMDVMDefines.h"
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XRF::XRF()
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{
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m_mode = "XRF";
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m_attenuation = 5;
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}
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XRF::~XRF()
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{
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}
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void XRF::process_udp()
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{
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QByteArray buf;
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QHostAddress sender;
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quint16 senderPort;
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static bool sd_sync = 0;
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static int sd_seq = 0;
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static char user_data[21];
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buf.resize(m_udp->pendingDatagramSize());
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m_udp->readDatagram(buf.data(), buf.size(), &sender, &senderPort);
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if(m_debug){
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QDebug debug = qDebug();
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debug.noquote();
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QString s = "RECV:";
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for(int i = 0; i < buf.size(); ++i){
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s += " " + QString("%1").arg((uint8_t)buf.data()[i], 2, 16, QChar('0'));
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}
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debug << s;
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}
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if(buf.size() == 9){
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m_modeinfo.count++;
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if( (m_modeinfo.stream_state == STREAM_LOST) || (m_modeinfo.stream_state == STREAM_END) ){
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m_modeinfo.stream_state = STREAM_IDLE;
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}
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}
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if( (m_modeinfo.status == CONNECTING) && (buf.size() == 14) && (!memcmp(buf.data()+10, "ACK", 3)) ){
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m_modeinfo.status = CONNECTED_RW;
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m_modeinfo.sw_vocoder_loaded = load_vocoder_plugin();
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m_rxtimer = new QTimer();
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connect(m_rxtimer, SIGNAL(timeout()), this, SLOT(process_rx_data()));
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m_txtimer = new QTimer();
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connect(m_txtimer, SIGNAL(timeout()), this, SLOT(transmit()));
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m_ping_timer = new QTimer();
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connect(m_ping_timer, SIGNAL(timeout()), this, SLOT(send_ping()));
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m_ping_timer->start(3000);
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m_audio = new AudioEngine(m_audioin, m_audioout);
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m_audio->init();
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}
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if((buf.size() == 56) && (!memcmp(buf.data(), "DSVT", 4)) ){
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uint16_t streamid = (buf.data()[12] << 8) | (buf.data()[13] & 0xff);
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if( (m_modeinfo.streamid != 0) && (streamid != m_modeinfo.streamid) ){
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qDebug() << "New header received before timeout";
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m_modeinfo.streamid = 0;
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m_audio->stop_playback();
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}
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if(!m_tx && (m_modeinfo.streamid == 0)){
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char temp[9];
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memcpy(temp, buf.data() + 18, 8); temp[8] = '\0';
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m_modeinfo.gw2 = QString(temp);
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memcpy(temp, buf.data() + 26, 8); temp[8] = '\0';
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m_modeinfo.gw = QString(temp);
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memcpy(temp, buf.data() + 34, 8); temp[8] = '\0';
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m_modeinfo.dst = QString(temp);
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memcpy(temp, buf.data() + 42, 8); temp[8] = '\0';
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m_modeinfo.src = QString(temp);
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QString h = m_refname + " " + m_module;
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m_modeinfo.streamid = streamid;
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m_modeinfo.stream_state = STREAM_NEW;
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m_modeinfo.ts = QDateTime::currentMSecsSinceEpoch();
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if(!m_rxtimer->isActive()){
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m_audio->start_playback();
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m_rxtimer->start(m_rxtimerint);
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}
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if(m_modem){
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uint8_t out[44];
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out[0] = MMDVM_FRAME_START;
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out[1] = 44;
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out[2] = MMDVM_DSTAR_HEADER;
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out[3] = 0x40;
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out[4] = 0;
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out[5] = 0;
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memcpy(out + 6, m_modeinfo.gw2.toLocal8Bit().data(), 8);
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memcpy(out + 14, m_modeinfo.gw.toLocal8Bit().data(), 8);
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memcpy(out + 22, m_modeinfo.dst.toLocal8Bit().data(), 8);
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memcpy(out + 30, m_modeinfo.src.toLocal8Bit().data(), 8);
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memcpy(out + 38, buf.data() + 50, 4);
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CCRC::addCCITT161((uint8_t *)out + 3, 41);
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for(int i = 0; i < 44; ++i){
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m_rxmodemq.append(out[i]);
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}
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//m_modem->write(out);
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}
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qDebug() << "New stream from " << m_modeinfo.src << " to " << m_modeinfo.dst << " id == " << QString::number(m_modeinfo.streamid, 16);
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emit update(m_modeinfo);
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}
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m_rxwatchdog = 0;
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}
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if((buf.size() == 27) && (!memcmp(buf.data(), "DSVT", 4))) {
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m_rxwatchdog = 0;
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uint16_t streamid = (buf.data()[12] << 8) | (buf.data()[13] & 0xff);
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if( (streamid != m_modeinfo.streamid) ){
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qDebug() << "New data packet received before timeout";
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m_modeinfo.streamid = streamid;
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if(!m_rxtimer->isActive()){
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m_audio->start_playback();
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m_rxtimer->start(m_rxtimerint);
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}
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}
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if(!m_tx && ( (m_modeinfo.stream_state == STREAM_LOST) || (m_modeinfo.stream_state == STREAM_END) || (m_modeinfo.stream_state == STREAM_IDLE) )){
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if(!m_rxtimer->isActive()){
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m_audio->start_playback();
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m_rxtimer->start(m_rxtimerint);
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}
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m_modeinfo.stream_state = STREAM_NEW;
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}
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else{
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m_modeinfo.stream_state = STREAMING;
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}
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m_modeinfo.streamid = streamid;
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m_modeinfo.frame_number = (uint8_t)buf.data()[14];
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if(m_modeinfo.frame_number & 0x40){
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qDebug() << "XRF RX stream ended ";
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m_rxwatchdog = 0;
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m_modeinfo.stream_state = STREAM_END;
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m_modeinfo.ts = QDateTime::currentMSecsSinceEpoch();
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emit update(m_modeinfo);
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m_modeinfo.streamid = 0;
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if(m_modem){
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m_rxmodemq.append(0xe0);
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m_rxmodemq.append(3);
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m_rxmodemq.append(MMDVM_DSTAR_EOT);
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}
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}
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else if(m_modem){
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m_rxmodemq.append(MMDVM_FRAME_START);
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m_rxmodemq.append(15);
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m_rxmodemq.append(MMDVM_DSTAR_DATA);
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for(int i = 0; i < 12; ++i){
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m_rxmodemq.append(buf.data()[15+i]);
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}
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}
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if((buf.data()[14] == 0) && (buf.data()[24] == 0x55) && (buf.data()[25] == 0x2d) && (buf.data()[26] == 0x16)){
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sd_sync = 1;
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sd_seq = 1;
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}
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if(sd_sync && (sd_seq == 1) && (buf.data()[14] == 1) && (buf.data()[24] == 0x30)){
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user_data[0] = buf.data()[25] ^ 0x4f;
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user_data[1] = buf.data()[26] ^ 0x93;
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++sd_seq;
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}
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if(sd_sync && (sd_seq == 2) && (buf.data()[14] == 2)){
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user_data[2] = buf.data()[24] ^ 0x70;
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user_data[3] = buf.data()[25] ^ 0x4f;
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user_data[4] = buf.data()[26] ^ 0x93;
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++sd_seq;
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}
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if(sd_sync && (sd_seq == 3) && (buf.data()[14] == 3) && (buf.data()[24] == 0x31)){
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user_data[5] = buf.data()[25] ^ 0x4f;
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user_data[6] = buf.data()[26] ^ 0x93;
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++sd_seq;
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}
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if(sd_sync && (sd_seq == 4) && (buf.data()[14] == 4)){
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user_data[7] = buf.data()[24] ^ 0x70;
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user_data[8] = buf.data()[25] ^ 0x4f;
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user_data[9] = buf.data()[26] ^ 0x93;
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++sd_seq;
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}
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if(sd_sync && (sd_seq == 5) && (buf.data()[14] == 5) && (buf.data()[24] == 0x32)){
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user_data[10] = buf.data()[25] ^ 0x4f;
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user_data[11] = buf.data()[26] ^ 0x93;
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++sd_seq;
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}
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if(sd_sync && (sd_seq == 6) && (buf.data()[14] == 6)){
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user_data[12] = buf.data()[24] ^ 0x70;
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user_data[13] = buf.data()[25] ^ 0x4f;
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user_data[14] = buf.data()[26] ^ 0x93;
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++sd_seq;
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}
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if(sd_sync && (sd_seq == 7) && (buf.data()[14] == 7) && (buf.data()[24] == 0x33)){
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user_data[15] = buf.data()[25] ^ 0x4f;
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user_data[16] = buf.data()[26] ^ 0x93;
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++sd_seq;
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}
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if(sd_sync && (sd_seq == 8) && (buf.data()[14] == 8)){
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user_data[17] = buf.data()[24] ^ 0x70;
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user_data[18] = buf.data()[25] ^ 0x4f;
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user_data[19] = buf.data()[26] ^ 0x93;
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user_data[20] = '\0';
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sd_sync = 0;
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sd_seq = 0;
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m_modeinfo.usertxt = QString(user_data);
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}
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for(int i = 0; i < 9; ++i){
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m_rxcodecq.append(buf.data()[15+i]);
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}
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}
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emit update(m_modeinfo);
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}
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void XRF::hostname_lookup(QHostInfo i)
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{
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if (!i.addresses().isEmpty()) {
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QByteArray out;
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out.append(m_modeinfo.callsign.toUtf8());
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out.append(8 - m_modeinfo.callsign.size(), ' ');
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out.append(m_module);
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out.append(m_module);
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out.append(11);
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m_address = i.addresses().first();
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m_udp = new QUdpSocket(this);
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connect(m_udp, SIGNAL(readyRead()), this, SLOT(process_udp()));
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m_udp->writeDatagram(out, m_address, m_modeinfo.port);
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if(m_debug){
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QDebug debug = qDebug();
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debug.noquote();
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QString s = "CONN:";
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for(int i = 0; i < out.size(); ++i){
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s += " " + QString("%1").arg((uint8_t)out.data()[i], 2, 16, QChar('0'));
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}
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debug << s;
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}
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}
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}
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void XRF::send_ping()
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{
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QByteArray out;
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out.append(m_modeinfo.callsign.toUtf8());
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out.append(8 - m_modeinfo.callsign.size(), ' ');
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out.append('\x00');
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m_udp->writeDatagram(out, m_address, m_modeinfo.port);
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if(m_debug){
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QDebug debug = qDebug();
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debug.noquote();
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QString s = "PING:";
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for(int i = 0; i < out.size(); ++i){
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s += " " + QString("%1").arg((uint8_t)out.data()[i], 2, 16, QChar('0'));
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}
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debug << s;
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}
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}
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void XRF::send_disconnect()
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{
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QByteArray out;
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out.append(m_modeinfo.callsign.toUtf8());
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out.append(8 - m_modeinfo.callsign.size(), ' ');
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out.append(m_module);
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out.append(' ');
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out.append('\x00');
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m_udp->writeDatagram(out, m_address, m_modeinfo.port);
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if(m_debug){
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QDebug debug = qDebug();
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debug.noquote();
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QString s = "DISC:";
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for(int i = 0; i < out.size(); ++i){
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s += " " + QString("%1").arg((uint8_t)out.data()[i], 2, 16, QChar('0'));
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}
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debug << s;
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}
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}
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void XRF::format_callsign(QString &s)
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{
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QStringList l = s.simplified().split(' ');
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if(l.size() > 1){
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s = l.at(0).simplified();
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while(s.size() < 7){
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s.append(' ');
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}
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s += l.at(1).simplified();
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}
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else{
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while(s.size() < 8){
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s.append(' ');
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}
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}
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}
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void XRF::process_modem_data(QByteArray d)
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{
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char cs[9];
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uint8_t ambe[9];
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uint8_t *p_frame = (uint8_t *)(d.data());
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if(p_frame[2] == MMDVM_DSTAR_HEADER){
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format_callsign(m_txrptr1);
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format_callsign(m_txrptr2);
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cs[8] = 0;
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memcpy(cs, p_frame + 22, 8);
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m_txurcall = QString(cs);
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memcpy(cs, p_frame + 30, 8);
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m_txmycall = QString(cs);
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m_modeinfo.stream_state = TRANSMITTING_MODEM;
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m_tx = true;
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}
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else if( (p_frame[2] == MMDVM_DSTAR_EOT) || (p_frame[2] == MMDVM_DSTAR_LOST) ){
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m_tx = false;
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}
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else if(p_frame[2] == MMDVM_DSTAR_DATA){
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memcpy(ambe, p_frame + 3, 9);
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}
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send_frame(ambe);
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}
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void XRF::toggle_tx(bool tx)
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{
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tx ? start_tx() : stop_tx();
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}
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void XRF::start_tx()
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{
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format_callsign(m_txmycall);
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format_callsign(m_txurcall);
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format_callsign(m_txrptr1);
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format_callsign(m_txrptr2);
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Mode::start_tx();
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}
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void XRF::transmit()
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{
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uint8_t ambe[9];
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uint8_t ambe_frame[72];
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int16_t pcm[160];
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memset(ambe_frame, 0, 72);
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memset(ambe, 0, 9);
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#ifdef USE_FLITE
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if(m_ttsid > 0){
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for(int i = 0; i < 160; ++i){
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if(m_ttscnt >= tts_audio->num_samples/2){
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pcm[i] = 0;
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}
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else{
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pcm[i] = tts_audio->samples[m_ttscnt*2] / 8;
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m_ttscnt++;
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}
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}
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}
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#endif
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if(m_ttsid == 0){
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if(m_audio->read(pcm, 160)){
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}
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else{
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return;
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}
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}
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if(m_hwtx){
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#if !defined(Q_OS_IOS)
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m_ambedev->encode(pcm);
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#endif
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if(m_tx && (m_txcodecq.size() >= 9)){
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for(int i = 0; i < 9; ++i){
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ambe[i] = m_txcodecq.dequeue();
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}
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send_frame(ambe);
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}
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else if(!m_tx){
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send_frame(ambe);
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}
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}
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else{
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if(m_modeinfo.sw_vocoder_loaded){
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m_mbevocoder->encode_2400x1200(pcm, ambe);
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}
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send_frame(ambe);
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}
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}
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void XRF::send_frame(uint8_t *ambe)
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{
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QByteArray txdata;
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static uint16_t txstreamid = 0;
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static bool sendheader = 1;
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if(txstreamid == 0){
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txstreamid = static_cast<uint16_t>((::rand() & 0xFFFF));
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}
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if(sendheader){
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sendheader = 0;
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txdata.resize(56);
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txdata[0] = 0x44;
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txdata[1] = 0x53;
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txdata[2] = 0x56;
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txdata[3] = 0x54;
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txdata[4] = 0x10;
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txdata[5] = 0x00;
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txdata[6] = 0x00;
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txdata[7] = 0x00;
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txdata[8] = 0x20;
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txdata[9] = 0x00;
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txdata[10] = 0x01;
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txdata[11] = 0x02;
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txdata[12] = (txstreamid >> 8) & 0xff;
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txdata[13] = txstreamid & 0xff;
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txdata[14] = 0x80;
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txdata[15] = 0x00;
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txdata[16] = 0x00;
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txdata[17] = 0x00;
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txdata.replace(18, 8, m_txrptr2.toLocal8Bit().data());
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txdata.replace(26, 8, m_txrptr1.toLocal8Bit().data());
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txdata.replace(34, 8, m_txurcall.toLocal8Bit().data());
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txdata.replace(42, 8, m_txmycall.toLocal8Bit().data());
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txdata.replace(50, 4, "AMBE");
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CCRC::addCCITT161((uint8_t *)txdata.data() + 15, 41);
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m_modeinfo.src = m_txmycall;
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m_modeinfo.dst = m_txurcall;
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m_modeinfo.gw = m_txrptr1;
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m_modeinfo.gw2 = m_txrptr2;
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m_modeinfo.streamid = txstreamid;
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m_modeinfo.frame_number = m_txcnt % 21;
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}
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else{
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txdata.resize(27);
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txdata[0] = 0x44;
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txdata[1] = 0x53;
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txdata[2] = 0x56;
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txdata[3] = 0x54;
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txdata[4] = 0x20;
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txdata[5] = 0x00;
|
|
txdata[6] = 0x00;
|
|
txdata[7] = 0x00;
|
|
txdata[8] = 0x20;
|
|
txdata[9] = 0x00;
|
|
txdata[10] = 0x01;
|
|
txdata[11] = 0x02;
|
|
txdata[12] = (txstreamid >> 8) & 0xff;
|
|
txdata[13] = txstreamid & 0xff;
|
|
txdata[14] = m_txcnt % 21;
|
|
memcpy(txdata.data() + 15, ambe, 9);
|
|
|
|
m_modeinfo.frame_number = m_txcnt % 21;
|
|
|
|
switch(txdata.data()[14]){
|
|
case 0:
|
|
txdata[24] = 0x55;
|
|
txdata[25] = 0x2d;
|
|
txdata[26] = 0x16;
|
|
break;
|
|
case 1:
|
|
txdata[24] = 0x40 ^ 0x70;
|
|
txdata[25] = m_txusrtxt.toLocal8Bit().data()[0] ^ 0x4f;
|
|
txdata[26] = m_txusrtxt.toLocal8Bit().data()[1] ^ 0x93;
|
|
break;
|
|
case 2:
|
|
txdata[24] = m_txusrtxt.toLocal8Bit().data()[2] ^ 0x70;
|
|
txdata[25] = m_txusrtxt.toLocal8Bit().data()[3] ^ 0x4f;
|
|
txdata[26] = m_txusrtxt.toLocal8Bit().data()[4] ^ 0x93;
|
|
break;
|
|
case 3:
|
|
txdata[24] = 0x41 ^ 0x70;
|
|
txdata[25] = m_txusrtxt.toLocal8Bit().data()[5] ^ 0x4f;
|
|
txdata[26] = m_txusrtxt.toLocal8Bit().data()[6] ^ 0x93;
|
|
break;
|
|
case 4:
|
|
txdata[24] = m_txusrtxt.toLocal8Bit().data()[7] ^ 0x70;
|
|
txdata[25] = m_txusrtxt.toLocal8Bit().data()[8] ^ 0x4f;
|
|
txdata[26] = m_txusrtxt.toLocal8Bit().data()[9] ^ 0x93;
|
|
break;
|
|
case 5:
|
|
txdata[24] = 0x42 ^ 0x70;
|
|
txdata[25] = m_txusrtxt.toLocal8Bit().data()[10] ^ 0x4f;
|
|
txdata[26] = m_txusrtxt.toLocal8Bit().data()[11] ^ 0x93;
|
|
break;
|
|
case 6:
|
|
txdata[24] = m_txusrtxt.toLocal8Bit().data()[12] ^ 0x70;
|
|
txdata[25] = m_txusrtxt.toLocal8Bit().data()[13] ^ 0x4f;
|
|
txdata[26] = m_txusrtxt.toLocal8Bit().data()[14] ^ 0x93;
|
|
break;
|
|
case 7:
|
|
txdata[24] = 0x43 ^ 0x70;
|
|
txdata[25] = m_txusrtxt.toLocal8Bit().data()[15] ^ 0x4f;
|
|
txdata[26] = m_txusrtxt.toLocal8Bit().data()[16] ^ 0x93;
|
|
break;
|
|
case 8:
|
|
txdata[24] = m_txusrtxt.toLocal8Bit().data()[17] ^ 0x70;
|
|
txdata[25] = m_txusrtxt.toLocal8Bit().data()[18] ^ 0x4f;
|
|
txdata[26] = m_txusrtxt.toLocal8Bit().data()[19] ^ 0x93;
|
|
break;
|
|
default:
|
|
txdata[24] = 0x16;
|
|
txdata[25] = 0x29;
|
|
txdata[26] = 0xf5;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(m_tx){
|
|
m_txcnt++;
|
|
}
|
|
else{
|
|
txdata[14] = (++m_txcnt % 21) | 0x40;
|
|
m_txcnt = 0;
|
|
txstreamid = 0;
|
|
m_modeinfo.streamid = 0;
|
|
sendheader = 1;
|
|
m_txtimer->stop();
|
|
|
|
if((m_ttsid == 0) && (m_modeinfo.stream_state == TRANSMITTING) ){
|
|
m_audio->stop_capture();
|
|
}
|
|
|
|
m_ttscnt = 0;
|
|
m_modeinfo.stream_state = STREAM_IDLE;
|
|
}
|
|
|
|
m_udp->writeDatagram(txdata, m_address, m_modeinfo.port);
|
|
emit update_output_level(m_audio->level() * 2);
|
|
update(m_modeinfo);
|
|
|
|
if(m_debug){
|
|
QDebug debug = qDebug();
|
|
debug.noquote();
|
|
QString s = "SEND:";
|
|
for(int i = 0; i < txdata.size(); ++i){
|
|
s += " " + QString("%1").arg((uint8_t)txdata.data()[i], 2, 16, QChar('0'));
|
|
}
|
|
debug << s;
|
|
}
|
|
}
|
|
|
|
void XRF::get_ambe()
|
|
{
|
|
#if !defined(Q_OS_IOS)
|
|
uint8_t ambe[9];
|
|
|
|
if(m_ambedev->get_ambe(ambe)){
|
|
for(int i = 0; i < 9; ++i){
|
|
m_txcodecq.append(ambe[i]);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void XRF::process_rx_data()
|
|
{
|
|
int16_t pcm[160];
|
|
uint8_t ambe[9];
|
|
|
|
if(m_rxwatchdog++ > 100){
|
|
qDebug() << "XRF RX stream timeout ";
|
|
m_rxwatchdog = 0;
|
|
m_modeinfo.stream_state = STREAM_LOST;
|
|
m_modeinfo.ts = QDateTime::currentMSecsSinceEpoch();
|
|
emit update(m_modeinfo);
|
|
m_modeinfo.streamid = 0;
|
|
}
|
|
|
|
if(m_rxmodemq.size() > 2){
|
|
QByteArray out;
|
|
int s = m_rxmodemq[1];
|
|
if((m_rxmodemq[0] == MMDVM_FRAME_START) && (m_rxmodemq.size() >= s)){
|
|
for(int i = 0; i < s; ++i){
|
|
out.append(m_rxmodemq.dequeue());
|
|
}
|
|
#if !defined(Q_OS_IOS)
|
|
m_modem->write(out);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if((!m_tx) && (m_rxcodecq.size() > 8) ){
|
|
for(int i = 0; i < 9; ++i){
|
|
ambe[i] = m_rxcodecq.dequeue();
|
|
}
|
|
if(m_hwrx){
|
|
#if !defined(Q_OS_IOS)
|
|
m_ambedev->decode(ambe);
|
|
|
|
if(m_ambedev->get_audio(pcm)){
|
|
m_audio->write(pcm, 160);
|
|
emit update_output_level(m_audio->level());
|
|
}
|
|
#endif
|
|
}
|
|
else{
|
|
if(m_modeinfo.sw_vocoder_loaded){
|
|
m_mbevocoder->decode_2400x1200(pcm, ambe);
|
|
}
|
|
else{
|
|
memset(pcm, 0, 160 * sizeof(int16_t));
|
|
}
|
|
m_audio->write(pcm, 160);
|
|
emit update_output_level(m_audio->level());
|
|
}
|
|
}
|
|
else if ( (m_modeinfo.stream_state == STREAM_END) || (m_modeinfo.stream_state == STREAM_LOST) ){
|
|
m_rxtimer->stop();
|
|
m_audio->stop_playback();
|
|
m_rxwatchdog = 0;
|
|
m_modeinfo.streamid = 0;
|
|
m_rxcodecq.clear();
|
|
qDebug() << "XRF playback stopped";
|
|
m_modeinfo.stream_state = STREAM_IDLE;
|
|
return;
|
|
}
|
|
}
|