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radioop.cpp
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// Written by Adrian Musceac YO8RZZ , started October 2013.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#include "radioop.h"
RadioOp::RadioOp(Settings *settings, gr::qtgui::sink_c::sptr fft_gui, gr::qtgui::const_sink_c::sptr const_gui,
gr::qtgui::number_sink::sptr rssi_gui, QObject *parent) :
QObject(parent)
{
_rx_mode = gr_modem_types::ModemTypeBPSK2000;
_tx_mode = gr_modem_types::ModemTypeBPSK2000;
_rx_radio_type = radio_type::RADIO_TYPE_DIGITAL;
_tx_radio_type = radio_type::RADIO_TYPE_DIGITAL;
_codec = new AudioEncoder;
_audio = new AudioInterface;
_radio_protocol = new RadioProtocol;
_mutex = new QMutex;
_m_queue = new std::vector<short>;
_last_session_id = 0;
_net_device = 0;
_video = 0;
_stop =false;
_tx_inited = false;
_rx_inited = false;
_tx_started = false;
_voip_enabled = false;
_vox_enabled = false;
_voip_forwarding = false;
_last_voiced_frame_timer.start();
_voip_tx_timer = new QTimer(this);
_voip_tx_timer->setSingleShot(true);
_vox_timer = new QTimer(this);
_vox_timer->setSingleShot(true);
_data_read_timer = new QElapsedTimer();
_data_modem_reset_timer = new QElapsedTimer();
_data_modem_sleep_timer = new QElapsedTimer();
_data_modem_sleeping = false;
_settings = settings;
_transmitting_audio = false;
_process_text = false;
_repeat_text = false;
_repeat = false;
_settings = settings;
_tx_power = 0;
_bb_gain = 0;
_rx_sensitivity = 0;
_rx_volume = 0.0;
_squelch = 0;
_rx_ctcss = 0.0;
_tx_ctcss = 0.0;
_tune_center_freq = 0;
_autotune_freq = 0;
_tune_shift_freq = 0;
_tune_limit_lower = -5000;
_tune_limit_upper = 5000;
_step_hz = 10;
_tuning_done = true;
_tune_counter = 0;
_freq_gui_counter = 0;
_tx_modem_started = false;
_voice_led_timer = new QTimer(this);
_voice_led_timer->setSingleShot(true);
_data_led_timer = new QTimer(this);
_data_led_timer->setSingleShot(true);
_rand_frame_data = new unsigned char[5000];
_voip_encode_buffer = new QVector<short>;
_fft_gui = fft_gui;
QObject::connect(_voice_led_timer, SIGNAL(timeout()), this, SLOT(receiveEnd()));
QObject::connect(_data_led_timer, SIGNAL(timeout()), this, SLOT(receiveEnd()));
QObject::connect(_voip_tx_timer, SIGNAL(timeout()), this, SLOT(stopTx()));
_modem = new gr_modem(_settings, fft_gui,const_gui, rssi_gui);
QObject::connect(_modem,SIGNAL(textReceived(QString)),this,SLOT(textReceived(QString)));
QObject::connect(_modem,SIGNAL(repeaterInfoReceived(QByteArray)),this,SLOT(repeaterInfoReceived(QByteArray)));
QObject::connect(_modem,SIGNAL(callsignReceived(QString)),this,SLOT(callsignReceived(QString)));
QObject::connect(_modem,SIGNAL(audioFrameReceived()),this,SLOT(audioFrameReceived()));
QObject::connect(_modem,SIGNAL(dataFrameReceived()),this,SLOT(dataFrameReceived()));
QObject::connect(_modem,SIGNAL(receiveEnd()),this,SLOT(receiveEnd()));
QObject::connect(_modem,SIGNAL(endAudioTransmission()),this,SLOT(endAudioTransmission()));
QObject::connect(this,SIGNAL(audioData(unsigned char*,int)),_modem,SLOT(processAudioData(unsigned char*,int)));
QObject::connect(this,SIGNAL(pcmData(std::vector<float>*)),_modem,SLOT(processPCMAudio(std::vector<float>*)));
QObject::connect(this,SIGNAL(videoData(unsigned char*,int)),_modem,SLOT(processVideoData(unsigned char*,int)));
QObject::connect(this,SIGNAL(netData(unsigned char*,int)),_modem,SLOT(processNetData(unsigned char*,int)));
QObject::connect(_modem,SIGNAL(digitalAudio(unsigned char*,int)),this,SLOT(receiveAudioData(unsigned char*,int)));
QObject::connect(_modem,SIGNAL(pcmAudio(std::vector<float>*)),this,SLOT(receivePCMAudio(std::vector<float>*)));
QObject::connect(_modem,SIGNAL(videoData(unsigned char*,int)),this,SLOT(receiveVideoData(unsigned char*,int)));
QObject::connect(_modem,SIGNAL(netData(unsigned char*,int)),this,SLOT(receiveNetData(unsigned char*,int)));
for (int j = 0;j<5000;j++)
_rand_frame_data[j] = rand() % 256;
QFile resfile(":/res/data_rec.raw");
if(resfile.open(QIODevice::ReadOnly))
{
_data_rec_sound = new QByteArray(resfile.readAll());
}
_settings->readConfig();
toggleRxMode(_settings->rx_mode);
toggleTxMode(_settings->tx_mode);
}
RadioOp::~RadioOp()
{
if(_rx_inited)
toggleRX(false);
if(_tx_inited)
toggleTX(false);
delete _codec;
if(_video != 0)
delete _video;
if(_net_device != 0)
delete _net_device;
delete _audio;
delete _radio_protocol;
delete _voice_led_timer;
delete _data_led_timer;
delete _voip_tx_timer;
delete _modem;
delete[] _rand_frame_data;
_voip_encode_buffer->clear();
delete _voip_encode_buffer;
_m_queue->clear();
delete _m_queue;
}
void RadioOp::stop()
{
_stop=true;
}
void RadioOp::readConfig(std::string &rx_device_args, std::string &tx_device_args,
std::string &rx_antenna, std::string &tx_antenna, int &rx_freq_corr,
int &tx_freq_corr, std::string &callsign, std::string &video_device)
{
_settings->readConfig();
int tx_power, rx_sensitivity, squelch, rx_volume, bb_gain;
long long rx_frequency, tx_shift;
rx_device_args = _settings->rx_device_args.toStdString();
tx_device_args = _settings->tx_device_args.toStdString();
rx_antenna = _settings->rx_antenna.toStdString();
tx_antenna = _settings->tx_antenna.toStdString();
rx_freq_corr = _settings->rx_freq_corr;
tx_freq_corr = _settings->tx_freq_corr;
video_device = _settings->video_device.toStdString();
tx_power = _settings->tx_power;
bb_gain = _settings->bb_gain;
rx_sensitivity = _settings->rx_sensitivity;
squelch = _settings->squelch;
rx_volume = _settings->rx_volume;
rx_frequency = _settings->rx_frequency;
tx_shift = _settings->tx_shift;
_callsign = _settings->callsign;
if(_callsign.size() < 7)
{
QString pad = QString(" ").repeated(7 - _callsign.size());
_callsign = _callsign + pad;
}
if(_callsign.size() > 7)
{
_callsign = _callsign.mid(0,7);
}
if(_tx_power == 0)
{
_tx_power = (float)tx_power/100;
}
_bb_gain = bb_gain;
if(_rx_sensitivity == 0)
{
_rx_sensitivity = (float)rx_sensitivity/100.0;
}
if(_tune_center_freq == 0)
{
_tune_center_freq = rx_frequency;
}
if(_tune_shift_freq == 0)
{
_tune_shift_freq = tx_shift;
}
if(_squelch == 0)
{
_squelch = squelch;
}
if(_rx_volume == 0)
{
_rx_volume = (float)rx_volume/50.0;
}
}
void RadioOp::processAudioStream()
{
if(!_transmitting_audio && !_vox_enabled)
return;
if(_tx_mode == gr_modem_types::ModemTypeQPSK250000)
return;
int audio_mode;
if((_tx_mode == gr_modem_types::ModemTypeBPSK2000) ||
(_tx_mode == gr_modem_types::ModemType2FSK2000) ||
(_tx_mode == gr_modem_types::ModemType4FSK2000) ||
(_tx_mode == gr_modem_types::ModemTypeQPSK2000))
audio_mode = AudioInterface::AUDIO_MODE_CODEC2;
else
audio_mode = AudioInterface::AUDIO_MODE_OPUS;
int audiobuffer_size = 640; //40 ms @ 8k
short *audiobuffer = new short[audiobuffer_size/sizeof(short)];
int vad = _audio->read_short(audiobuffer,audiobuffer_size, true, audio_mode);
if(_vox_enabled)
{
if(vad)
{
_vox_timer->start(100);
if(!_tx_started && !_voip_enabled)
_transmitting_audio = true;
}
if(!vad && !_vox_timer->isActive())
{
if(_tx_started && !_voip_enabled)
_transmitting_audio = false;
delete[] audiobuffer;
return;
}
}
if(_voip_enabled)
{
emit voipData(audiobuffer,audiobuffer_size);
return;
}
if(_tx_inited)
txAudio(audiobuffer, audiobuffer_size);
else
delete[] audiobuffer;
}
void RadioOp::txAudio(short *audiobuffer, int audiobuffer_size)
{
if(_tx_radio_type == radio_type::RADIO_TYPE_ANALOG)
{
std::vector<float> *pcm = new std::vector<float>;
for(unsigned int i=0;i<audiobuffer_size/sizeof(short);i++)
{
pcm->push_back((float)audiobuffer[i] / 32767.0f);
}
emit pcmData(pcm);
delete[] audiobuffer;
return;
}
int packet_size = 0;
unsigned char *encoded_audio;
if((_tx_mode == gr_modem_types::ModemTypeBPSK2000) ||
(_tx_mode == gr_modem_types::ModemType2FSK2000) ||
(_tx_mode == gr_modem_types::ModemType4FSK2000) ||
(_tx_mode == gr_modem_types::ModemTypeQPSK2000))
encoded_audio = _codec->encode_codec2_1400(audiobuffer, audiobuffer_size, packet_size);
else if(_tx_mode == gr_modem_types::ModemTypeBPSK1000)
encoded_audio = _codec->encode_codec2_700(audiobuffer, audiobuffer_size, packet_size);
else
encoded_audio = _codec->encode_opus(audiobuffer, audiobuffer_size, packet_size);
emit audioData(encoded_audio,packet_size);
delete[] audiobuffer;
}
int RadioOp::processVideoStream(bool &frame_flag)
{
unsigned int max_video_frame_size = 3122;
unsigned long encoded_size;
unsigned char *videobuffer = (unsigned char*)calloc(max_video_frame_size, sizeof(unsigned char));
QElapsedTimer timer;
qint64 microsec;
timer.start();
_video->encode_jpeg(&(videobuffer[24]), encoded_size, max_video_frame_size - 24);
microsec = (quint64)timer.nsecsElapsed();
if(microsec < 100000000)
{
struct timespec time_to_sleep = {0, (100000000 - microsec) - 2000000 };
nanosleep(&time_to_sleep, NULL);
}
//qDebug() << "video out " << microsec << " / " << encoded_size;
if(encoded_size > max_video_frame_size - 24)
{
encoded_size = max_video_frame_size - 24;
}
unsigned int crc = gr::digital::crc32(&(videobuffer[24]), encoded_size);
memcpy(&(videobuffer[0]), &encoded_size, 4);
memcpy(&(videobuffer[4]), &encoded_size, 4);
memcpy(&(videobuffer[8]), &encoded_size, 4);
memcpy(&(videobuffer[12]), &crc, 4);
memcpy(&(videobuffer[16]), &crc, 4);
memcpy(&(videobuffer[20]), &crc, 4);
for(unsigned int k=encoded_size+24,i=0;k<max_video_frame_size;k++,i++)
{
videobuffer[k] = _rand_frame_data[i];
}
emit videoData(videobuffer,max_video_frame_size);
return 1;
}
void RadioOp::processNetStream()
{
// 48400
qint64 time_per_frame = 48400000;
qint64 microsec, time_left;
microsec = (quint64)_data_read_timer->nsecsElapsed();
if(microsec < 46400000)
{
return;
}
time_left = time_per_frame - microsec;
struct timespec time_to_sleep = {0, time_left };
if(time_left > 0)
nanosleep(&time_to_sleep, NULL);
_data_read_timer->restart();
int max_frame_size = 1516;
unsigned char *netbuffer = (unsigned char*)calloc(max_frame_size, sizeof(unsigned char));
int nread;
unsigned char *buffer = _net_device->read_buffered(nread);
if(nread > 0)
{
unsigned int crc = gr::digital::crc32(buffer, nread);
memcpy(&(netbuffer[0]), &nread, 4);
memcpy(&(netbuffer[4]), &nread, 4);
memcpy(&(netbuffer[8]), &nread, 4);
memcpy(&(netbuffer[12]), &crc, 4);
memcpy(&(netbuffer[16]), buffer, nread);
for(int k=nread+16,i=0;k<max_frame_size;k++,i++)
{
netbuffer[k] = _rand_frame_data[i];
}
emit netData(netbuffer,max_frame_size);
delete[] buffer;
}
else
{
int fake_nread = -1;
memcpy(&(netbuffer[0]), &fake_nread, 4);
memcpy(&(netbuffer[4]), &fake_nread, 4);
memcpy(&(netbuffer[8]), &fake_nread, 4);
for(int k=12,i=0;k<max_frame_size;k++,i++)
{
netbuffer[k] = _rand_frame_data[i];
}
emit netData(netbuffer,max_frame_size);
delete[] buffer;
}
}
void RadioOp::sendEndBeep()
{
QFile resfile(":/res/end_beep.raw");
if(resfile.open(QIODevice::ReadOnly))
{
QByteArray *data = new QByteArray(resfile.readAll());
short *samples = (short*) data->data();
std::vector<float> *pcm = new std::vector<float>;
for(unsigned int i=0;i<data->size()/sizeof(short);i++)
{
pcm->push_back((float)samples[i] / 32767.0f);
}
emit pcmData(pcm);
delete data;
}
}
void RadioOp::sendChannels()
{
QByteArray data = _radio_protocol->buildRepeaterInfo();
sendBinData(data,gr_modem::FrameTypeRepeaterInfo);
}
void RadioOp::startTx()
{
if(_tx_inited)
{
if(_tx_mode == gr_modem_types::ModemTypeQPSK250000)
{
_data_modem_reset_timer->start();
_data_modem_sleep_timer->start();
}
if(_rx_inited && !_repeat && (_rx_mode != gr_modem_types::ModemTypeQPSK250000))
_modem->stopRX();
if(_tx_modem_started)
_modem->stopTX();
_modem->startTX();
struct timespec time_to_sleep = {0, 10000000L };
nanosleep(&time_to_sleep, NULL);
_modem->tuneTx(_tune_center_freq + _tune_shift_freq);
_tx_modem_started = false;
_tx_started = true;
if((_tx_radio_type == radio_type::RADIO_TYPE_DIGITAL))
_modem->startTransmission(_callsign);
}
}
void RadioOp::stopTx()
{
if(_tx_inited)
{
if(_tx_radio_type == radio_type::RADIO_TYPE_DIGITAL)
_modem->endTransmission(_callsign);
if((_tx_radio_type == radio_type::RADIO_TYPE_ANALOG)
&& ((_tx_mode == gr_modem_types::ModemTypeNBFM2500) || (_tx_mode == gr_modem_types::ModemTypeNBFM5000)))
{
sendEndBeep();
}
struct timespec time_to_sleep = {1, 0L };
nanosleep(&time_to_sleep, NULL);
_modem->stopTX();
_modem->tuneTx(430000000);
_tx_modem_started = false;
_tx_started = false;
if(_rx_inited && !_repeat && (_rx_mode != gr_modem_types::ModemTypeQPSK250000))
_modem->startRX();
}
}
void RadioOp::updateFrequency()
{
if(_freq_gui_counter < 10)
{
_freq_gui_counter++;
return;
}
_freq_gui_counter = 0;
long long freq = (long long)_modem->getFreqGUI();
if(freq != 0 && freq != _tune_center_freq)
{
_tune_center_freq = freq;
_modem->tune(_tune_center_freq);
_modem->tuneTx(_tune_center_freq + _tune_shift_freq);
emit freqFromGUI(_tune_center_freq);
}
}
void RadioOp::sendTextData(QString text, int frame_type)
{
if(_tx_inited)
{
if(!_tx_modem_started)
{
stopTx();
startTx();
}
_tx_modem_started = true;
_modem->startTransmission(_callsign);
_modem->textData(text, frame_type);
_modem->endTransmission(_callsign);
}
if(!_repeat_text)
{
_mutex->lock();
_process_text = false;
_mutex->unlock();
}
}
void RadioOp::sendBinData(QByteArray data, int frame_type)
{
if(_tx_inited)
{
if(!_tx_modem_started)
{
stopTx();
startTx();
}
_tx_modem_started = true;
_modem->binData(data, frame_type);
_modem->endTransmission(_callsign);
}
if(!_repeat_text)
{
_mutex->lock();
_process_text = false;
_mutex->unlock();
}
}
void RadioOp::flushVoipBuffer()
{
if(_voip_encode_buffer->size() > 320)
{
int frames = floor(_voip_encode_buffer->size() / 320);
for(int j = 0;j<frames;j++)
{
short *pcm = new short[320];
for(int i =0; i< 320;i++)
{
pcm[i] = _voip_encode_buffer->at(i);
}
_voip_encode_buffer->remove(0,320);
emit voipData(pcm,320*sizeof(short));
}
}
}
void RadioOp::updateDataModemReset(bool transmitting, bool ptt_activated)
{
if((_tx_mode == gr_modem_types::ModemTypeQPSK250000) && !_data_modem_sleeping
&& transmitting && ptt_activated)
{
qint64 sec_modem_running;
sec_modem_running = (quint64)_data_modem_reset_timer->nsecsElapsed()/1000000000;
if(sec_modem_running > 300)
{
std::cout << "resetting modem" << std::endl;
_data_modem_sleeping = true;
_data_modem_sleep_timer->restart();
}
}
if((_tx_mode == gr_modem_types::ModemTypeQPSK250000) && _data_modem_sleeping)
{
qint64 sec_modem_sleeping;
sec_modem_sleeping = (quint64)_data_modem_sleep_timer->nsecsElapsed()/1000000000;
if(sec_modem_sleeping > 2)
{
_data_modem_sleep_timer->restart();
_data_modem_sleeping = false;
_data_modem_reset_timer->restart();
_modem->startTransmission(_callsign);
std::cout << "modem reset complete" << std::endl;
}
}
}
void RadioOp::run()
{
bool ptt_activated = false;
bool frame_flag = true;
int last_ping_time = 0;
int last_channel_broadcast_time = 0;
while(true)
{
bool transmitting = _transmitting_audio;
QCoreApplication::processEvents();
flushVoipBuffer();
int time = QDateTime::currentDateTime().toTime_t();
if((time - last_ping_time) > 10)
{
emit pingServer();
last_ping_time = time;
}
if((time - last_channel_broadcast_time) > 10)
{
last_channel_broadcast_time = time;
if(_voip_forwarding && !transmitting && !ptt_activated)
{
sendChannels();
}
}
updateDataModemReset(transmitting, ptt_activated);
updateFrequency();
if(transmitting && !ptt_activated)
{
ptt_activated = true;
startTx();
}
if(!transmitting && ptt_activated && !_data_modem_sleeping)
{
ptt_activated = false;
stopTx();
}
processAudioStream();
if(transmitting)
{
if(_tx_mode == gr_modem_types::ModemTypeQPSKVideo)
processVideoStream(frame_flag);
else if((_tx_mode == gr_modem_types::ModemTypeQPSK250000) && (_net_device != 0))
{
if(_rx_inited)
{
_modem->demodulate();
}
if(!_data_modem_sleeping)
processNetStream();
}
}
else
{
bool rx_inited = _rx_inited;
if(rx_inited)
{
if(!_tuning_done)
autoTune();
if(_rx_radio_type == radio_type::RADIO_TYPE_DIGITAL)
_modem->demodulate();
else if(_rx_radio_type == radio_type::RADIO_TYPE_ANALOG)
{
_modem->demodulateAnalog();
}
}
}
if(_process_text && (_tx_radio_type == radio_type::RADIO_TYPE_DIGITAL))
{
sendTextData(_text_out, gr_modem::FrameTypeText);
emit displayTransmitStatus(false);
}
if(!_transmitting_audio && !_vox_enabled && !_process_text)
{
struct timespec time_to_sleep = {0, 1000000L };
nanosleep(&time_to_sleep, NULL);
}
else
{
struct timespec time_to_sleep = {0, 2000000L };
nanosleep(&time_to_sleep, NULL);
}
if(_stop)
break;
}
emit finished();
}
void RadioOp::receiveAudioData(unsigned char *data, int size)
{
short *audio_out;
int samples;
int audio_mode = AudioInterface::AUDIO_MODE_OPUS;
if((_rx_mode == gr_modem_types::ModemTypeBPSK2000) ||
(_rx_mode == gr_modem_types::ModemType2FSK2000) ||
(_rx_mode == gr_modem_types::ModemType4FSK2000) ||
(_rx_mode == gr_modem_types::ModemTypeQPSK2000))
{
audio_out = _codec->decode_codec2_1400(data, size, samples);
}
else if((_rx_mode == gr_modem_types::ModemTypeBPSK1000))
audio_out = _codec->decode_codec2_700(data, size, samples);
else
audio_out = _codec->decode_opus(data, size, samples);
delete[] data;
if(samples > 0)
{
float amplif = 1.0;
if((_rx_mode == gr_modem_types::ModemTypeBPSK2000) ||
(_rx_mode == gr_modem_types::ModemType2FSK2000) ||
(_rx_mode == gr_modem_types::ModemType4FSK2000) ||
(_rx_mode == gr_modem_types::ModemTypeQPSK2000) ||
(_rx_mode == gr_modem_types::ModemTypeBPSK1000))
{
amplif = 1.0;
audio_mode = AudioInterface::AUDIO_MODE_CODEC2;
}
for(int i=0;i<samples;i++)
{
audio_out[i] = (short)((float)audio_out[i] * amplif * 1e-1*exp(_rx_volume*log(10)));
}
if(_voip_forwarding)
{
emit voipData(audio_out,samples*sizeof(short));
}
else
{
_audio->write_short(audio_out,samples*sizeof(short),true, audio_mode);
}
}
}
void RadioOp::receivePCMAudio(std::vector<float> *audio_data)
{
int size = audio_data->size();
short *pcm = new short[size];
for(int i=0;i<size;i++)
{
pcm[i] = (short)(audio_data->at(i) * 1e-1*exp(_rx_volume*log(10)) * 32767.0f);
}
if(_voip_forwarding)
{
for(int i=0;i<size;i++)
{
_voip_encode_buffer->push_back(pcm[i]);
}
delete[] pcm;
}
else
{
_audio->write_short(pcm, size*sizeof(short),false, AudioInterface::AUDIO_MODE_ANALOG);
}
audio_data->clear();
delete audio_data;
audioFrameReceived();
}
int RadioOp::getFrameLength(unsigned char *data)
{
int frame_size1;
int frame_size2;
int frame_size3;
memcpy(&frame_size1, &data[0], 4);
memcpy(&frame_size2, &data[4], 4);
memcpy(&frame_size3, &data[8], 4);
if(frame_size1 == frame_size2)
return (int)frame_size1;
else if(frame_size1 == frame_size3)
return (int)frame_size1;
else if(frame_size2 == frame_size3)
return (int)frame_size2;
else
return 0;
}
unsigned int RadioOp::getFrameCRC32(unsigned char *data)
{
unsigned int crc1;
unsigned int crc2;
unsigned int crc3;
memcpy(&crc1, &data[12], 4);
memcpy(&crc2, &data[16], 4);
memcpy(&crc3, &data[20], 4);
if(crc1 == crc2)
return (unsigned int)crc1;
else if(crc1 == crc3)
return (unsigned int)crc1;
else if(crc2 == crc3)
return (unsigned int)crc2;
else
return 0;
}
void RadioOp::receiveVideoData(unsigned char *data, int size)
{
int frame_size = getFrameLength(data);
unsigned int crc = getFrameCRC32(data);
if(frame_size == 0)
{
std::cerr << "received wrong frame size, dropping frame " << std::endl;
delete[] data;
return;
}
if(frame_size > 3122 - 24)
{
std::cerr << "frame size too large, dropping frame " << std::endl;
delete[] data;
return;
}
unsigned char *jpeg_frame = new unsigned char[frame_size];
memcpy(jpeg_frame, &data[24], frame_size);
delete[] data;
unsigned int crc_check = gr::digital::crc32(jpeg_frame, frame_size);
if(crc != crc_check)
{
std::cerr << "CRC check failed " << std::endl;
delete[] jpeg_frame;
return;
}
unsigned char *raw_output = _video->decode_jpeg(jpeg_frame,frame_size);
delete[] jpeg_frame;
if(!raw_output)
{
return;
}
QImage img (320,240, QImage::Format_RGB888);
img.loadFromData(raw_output, 230400, 0);
img.convertToFormat(QImage::Format_RGB32);
QImage out_img(img.scaled(480, 360));
emit videoImage(out_img);
delete[] raw_output;
}
void RadioOp::receiveNetData(unsigned char *data, int size)
{
int frame_size = getFrameLength(data);
if(frame_size < 0)
{
dataFrameReceived();
delete[] data;
return;
}
if((frame_size == 0) || (frame_size > 1500))
{
std::cerr << "received wrong frame size, dropping frame " << std::endl;
delete[] data;
return;
}
dataFrameReceived();
unsigned char *net_frame = new unsigned char[frame_size];
memcpy(net_frame, &data[16], frame_size);
unsigned int crc;
memcpy(&crc, &data[12], 4);
delete[] data;
unsigned int crc_check = gr::digital::crc32(net_frame, frame_size);
if(crc != crc_check)
{
std::cerr << "CRC check failed, dropping frame " << std::endl;
delete[] net_frame;
return;
}
int res = _net_device->write_buffered(net_frame,frame_size);
}
void RadioOp::processVoipAudioFrame(short *pcm, int samples, quint64 sid)
{
if(_m_queue->empty())
{
for(int i=0;i<samples;i++)
{
_m_queue->push_back(pcm[i]);
}
}
else
{
unsigned int size = (_m_queue->size() > samples) ? samples : _m_queue->size();
for(unsigned int i=0;i<size;i++)
{
_m_queue->at(i) = _m_queue->at(i)/2-1 + pcm[i]/2-1;
}
if(_m_queue->size() < samples)
{
for(int i=_m_queue->size();i<samples;i++)
{
_m_queue->push_back(pcm[i]);
}
}
}
delete[] pcm;
quint64 milisec = (quint64)_last_voiced_frame_timer.nsecsElapsed()/1000000;
if((milisec >= 20) || (sid == _last_session_id))
{
short *pcm = new short[_m_queue->size()];
for(unsigned int i = 0;i<_m_queue->size();i++)
{
pcm[i] = (short)((float)_m_queue->at(i) * 1e-1*exp(_rx_volume*log(10)));
}
if(_voip_forwarding && _tx_inited)
{
if(!_voip_tx_timer->isActive())
{
startTx();
}
_voip_tx_timer->start(200);
txAudio(pcm, samples*sizeof(short));
}
else
{
_audio->write_short(pcm, samples*sizeof(short));
audioFrameReceived();
}
_last_voiced_frame_timer.restart();
_m_queue->clear();
_last_session_id = sid;
}
}
void RadioOp::startTransmission()
{
if(_tx_inited || _voip_enabled)
_transmitting_audio = true;
}
void RadioOp::endTransmission()
{
_transmitting_audio = false;
}
void RadioOp::textData(QString text, bool repeat)
{
_repeat_text = repeat;
_mutex->lock();
_text_out = text;
_process_text = true;
_mutex->unlock();
}
void RadioOp::textReceived(QString text)
{
emit printText(text, false);
}
void RadioOp::repeaterInfoReceived(QByteArray data)
{
_radio_protocol->dataIn(data);
}
void RadioOp::callsignReceived(QString callsign)
{
QString time= QDateTime::currentDateTime().toString("dd/MMM/yyyy hh:mm:ss");
QString text = "<br/><b>" + time + "</b> " + "<font color=\"#770000\">" + callsign + " </font><br/>\n";
emit printText(text,true);
emit printCallsign(callsign);
}
void RadioOp::audioFrameReceived()
{
emit displayReceiveStatus(true);
_voice_led_timer->start(100);
}
void RadioOp::dataFrameReceived()
{
emit displayDataReceiveStatus(true);
_data_led_timer->start(100);
if((_rx_mode != gr_modem_types::ModemTypeQPSK250000)
&& (_rx_mode != gr_modem_types::ModemTypeQPSKVideo))
{
short *sound = (short*) _data_rec_sound->data();
short *samples = new short[_data_rec_sound->size()];
memcpy(samples, sound, _data_rec_sound->size());
_audio->write_short(samples,_data_rec_sound->size());
}
}
void RadioOp::receiveEnd()
{
emit displayReceiveStatus(false);
emit displayDataReceiveStatus(false);
}
void RadioOp::endAudioTransmission()
{
QString time= QDateTime::currentDateTime().toString("d/MMM/yyyy hh:mm:ss");
emit printText("<br/><b>" + time + "</b> <font color=\"#000077\">Transmission end</font><br/>\n",true);
QFile resfile(":/res/end_beep.raw");
if(resfile.open(QIODevice::ReadOnly))
{
QByteArray *data = new QByteArray(resfile.readAll());
short *samples = (short*) data->data();
_audio->write_short(samples,data->size());
}
}
void RadioOp::addChannel(Channel *chan)
{
_radio_protocol->addChannel(chan);
}
void RadioOp::setStations(StationList list)
{
_radio_protocol->setStations(list);
}
void RadioOp::toggleRX(bool value)
{
if(value)
{
std::string rx_device_args;
std::string tx_device_args;
std::string rx_antenna;
std::string tx_antenna;
int rx_freq_corr;
int tx_freq_corr;
std::string callsign;
std::string video_device;
readConfig(rx_device_args, tx_device_args,
rx_antenna, tx_antenna, rx_freq_corr,
tx_freq_corr, callsign, video_device);