mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-14 04:11:48 -05:00
Merge branch 'master' into f4exb
This commit is contained in:
Edouard Griffiths
commit
b2f384a630
@ -10,7 +10,7 @@ V4LGui::V4LGui(PluginAPI* pluginAPI, QWidget* parent) :
|
||||
m_sampleSource(NULL)
|
||||
{
|
||||
ui->setupUi(this);
|
||||
ui->centerFrequency->setValueRange(7, 20000U, 2200000U);
|
||||
ui->centerFrequency->setValueRange(7, 50000U, 1999000U);
|
||||
connect(&m_updateTimer, SIGNAL(timeout()), this, SLOT(updateHardware()));
|
||||
displaySettings();
|
||||
|
||||
@ -82,37 +82,15 @@ bool V4LGui::deserialize(const QByteArray& data)
|
||||
|
||||
bool V4LGui::handleMessage(Message* message)
|
||||
{
|
||||
if(V4LInput::MsgReportV4L::match(message)) {
|
||||
m_gains = ((V4LInput::MsgReportV4L*)message)->getGains();
|
||||
displaySettings();
|
||||
message->completed();
|
||||
return true;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
void V4LGui::displaySettings()
|
||||
{
|
||||
ui->centerFrequency->setValue(m_generalSettings.m_centerFrequency / 1000);
|
||||
if(m_gains.size() > 0) {
|
||||
int dist = abs(m_settings.m_gain - m_gains[0]);
|
||||
int pos = 0;
|
||||
for(uint i = 1; i < m_gains.size(); i++) {
|
||||
if(abs(m_settings.m_gain - m_gains[i]) < dist) {
|
||||
dist = abs(m_settings.m_gain - m_gains[i]);
|
||||
pos = i;
|
||||
}
|
||||
}
|
||||
ui->gainText->setText(tr("%1.%2").arg(m_gains[pos] / 10).arg(abs(m_gains[pos] % 10)));
|
||||
ui->gain->setMaximum(m_gains.size() - 1);
|
||||
ui->gain->setEnabled(true);
|
||||
ui->gain->setValue(pos);
|
||||
} else {
|
||||
ui->gain->setMaximum(0);
|
||||
ui->gain->setEnabled(false);
|
||||
ui->gain->setValue(0);
|
||||
}
|
||||
ui->ifgain->setValue(1);
|
||||
ui->checkBoxL->setChecked(m_settings.m_lna);
|
||||
ui->checkBoxM->setChecked(m_settings.m_mix);
|
||||
}
|
||||
|
||||
void V4LGui::sendSettings()
|
||||
@ -127,12 +105,12 @@ void V4LGui::on_centerFrequency_changed(quint64 value)
|
||||
sendSettings();
|
||||
}
|
||||
|
||||
void V4LGui::on_gain_valueChanged(int value)
|
||||
void V4LGui::on_ifgain_valueChanged(int value)
|
||||
{
|
||||
if(value > (int)m_gains.size())
|
||||
if(value > 8)
|
||||
return;
|
||||
int gain = m_gains[value];
|
||||
ui->gainText->setText(tr("%1.%2").arg(gain / 10).arg(abs(gain % 10)));
|
||||
int gain = value * 6;
|
||||
ui->gainText->setText( tr("%1").arg(gain) );
|
||||
m_settings.m_gain = gain;
|
||||
sendSettings();
|
||||
}
|
||||
@ -143,3 +121,21 @@ void V4LGui::updateHardware()
|
||||
message->submit(m_pluginAPI->getDSPEngineMessageQueue());
|
||||
m_updateTimer.stop();
|
||||
}
|
||||
|
||||
void V4LGui::on_checkBoxL_stateChanged(int state)
|
||||
{
|
||||
if (state == Qt::Checked)
|
||||
m_settings.m_lna = 1;
|
||||
else
|
||||
m_settings.m_lna = 0;
|
||||
sendSettings();
|
||||
}
|
||||
|
||||
void V4LGui::on_checkBoxM_stateChanged(int state)
|
||||
{
|
||||
if (state == Qt::Checked)
|
||||
m_settings.m_mix = 1;
|
||||
else
|
||||
m_settings.m_mix = 0;
|
||||
sendSettings();
|
||||
}
|
||||
|
||||
@ -44,7 +44,9 @@ private:
|
||||
|
||||
private slots:
|
||||
void on_centerFrequency_changed(quint64 value);
|
||||
void on_gain_valueChanged(int value);
|
||||
void on_ifgain_valueChanged(int value);
|
||||
void on_checkBoxL_stateChanged(int state);
|
||||
void on_checkBoxM_stateChanged(int state);
|
||||
void updateHardware();
|
||||
};
|
||||
|
||||
|
||||
@ -107,6 +107,24 @@
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item>
|
||||
<layout class="QHBoxLayout" name="horizontalLayoutG">
|
||||
<item>
|
||||
<widget class="QCheckBox" name="checkBoxL">
|
||||
<property name="text">
|
||||
<string>LNA AMP</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item>
|
||||
<widget class="QCheckBox" name="checkBoxM">
|
||||
<property name="text">
|
||||
<string>Mix AMP</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
</layout>
|
||||
</item>
|
||||
<item>
|
||||
<layout class="QGridLayout" name="gridLayout_2">
|
||||
<property name="spacing">
|
||||
@ -126,18 +144,12 @@
|
||||
</widget>
|
||||
</item>
|
||||
<item row="0" column="1">
|
||||
<widget class="QSlider" name="gain">
|
||||
<property name="enabled">
|
||||
<bool>false</bool>
|
||||
</property>
|
||||
<widget class="QSlider" name="ifgain">
|
||||
<property name="toolTip">
|
||||
<string>LNA amplification</string>
|
||||
<string>IF amplification</string>
|
||||
</property>
|
||||
<property name="maximum">
|
||||
<number>0</number>
|
||||
</property>
|
||||
<property name="pageStep">
|
||||
<number>1</number>
|
||||
<number>8</number>
|
||||
</property>
|
||||
<property name="orientation">
|
||||
<enum>Qt::Horizontal</enum>
|
||||
|
||||
@ -23,16 +23,19 @@
|
||||
#include "util/simpleserializer.h"
|
||||
|
||||
MESSAGE_CLASS_DEFINITION(V4LInput::MsgConfigureV4L, Message)
|
||||
MESSAGE_CLASS_DEFINITION(V4LInput::MsgReportV4L, Message)
|
||||
|
||||
V4LInput::Settings::Settings() :
|
||||
m_gain(0)
|
||||
m_gain(1),
|
||||
m_lna(0),
|
||||
m_mix(0)
|
||||
{
|
||||
}
|
||||
|
||||
void V4LInput::Settings::resetToDefaults()
|
||||
{
|
||||
m_gain = 0;
|
||||
m_gain = 1;
|
||||
m_lna = 0;
|
||||
m_mix = 0;
|
||||
}
|
||||
|
||||
QByteArray V4LInput::Settings::serialize() const
|
||||
@ -53,7 +56,7 @@ bool V4LInput::Settings::deserialize(const QByteArray& data)
|
||||
}
|
||||
|
||||
if(d.getVersion() == 1) {
|
||||
d.readS32(1, &m_gain, 0);
|
||||
d.readS32(1, &m_gain, 1);
|
||||
//d.readS32(2, &m_samplerate, 0);
|
||||
return true;
|
||||
} else {
|
||||
@ -94,7 +97,7 @@ bool V4LInput::startInput(int device)
|
||||
return false;
|
||||
}
|
||||
|
||||
m_deviceDescription = QString("RTL-SDR /dev/swradio0");
|
||||
m_deviceDescription = QString("SDRplay /dev/swradio0");
|
||||
|
||||
qDebug("V4LInput: start");
|
||||
//MsgReportV4L::create(m_gains)->submit(m_guiMessageQueue);
|
||||
@ -122,6 +125,7 @@ const QString& V4LInput::getDeviceDescription() const
|
||||
|
||||
int V4LInput::getSampleRate() const
|
||||
{
|
||||
// The output rate is lower than the device rate
|
||||
int result = SAMPLERATE / 4;
|
||||
return result;
|
||||
}
|
||||
@ -153,15 +157,20 @@ void V4LInput::applySettings(const GeneralSettings& generalSettings, const Setti
|
||||
}
|
||||
|
||||
if((m_generalSettings.m_centerFrequency != generalSettings.m_centerFrequency) || force) {
|
||||
m_V4LThread->set_center_freq( (double)(generalSettings.m_centerFrequency
|
||||
+ (SAMPLERATE / 4) ));
|
||||
m_V4LThread->set_center_freq( (double)generalSettings.m_centerFrequency );
|
||||
m_generalSettings.m_centerFrequency = generalSettings.m_centerFrequency;
|
||||
}
|
||||
m_generalSettings.m_centerFrequency = generalSettings.m_centerFrequency;
|
||||
#if 0
|
||||
|
||||
if((m_settings.m_gain != settings.m_gain) || force) {
|
||||
m_settings.m_gain = settings.m_gain;
|
||||
m_V4LThread->set_tuner_gain((double)m_settings.m_gain);
|
||||
}
|
||||
#endif
|
||||
|
||||
if((m_settings.m_lna != settings.m_lna) || (m_settings.m_mix != settings.m_mix) || force) {
|
||||
m_settings.m_lna = settings.m_lna;
|
||||
m_settings.m_mix = settings.m_mix;
|
||||
m_V4LThread->set_amps(1, m_settings.m_lna);
|
||||
m_V4LThread->set_amps(0, m_settings.m_mix);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -31,7 +31,7 @@ class V4LThread;
|
||||
class V4LInput : public SampleSource {
|
||||
public:
|
||||
struct Settings {
|
||||
qint32 m_gain;
|
||||
qint32 m_gain, m_lna, m_mix;
|
||||
|
||||
Settings();
|
||||
void resetToDefaults();
|
||||
@ -62,26 +62,6 @@ public:
|
||||
{ }
|
||||
};
|
||||
|
||||
class MsgReportV4L : public Message {
|
||||
MESSAGE_CLASS_DECLARATION
|
||||
|
||||
public:
|
||||
const std::vector<int>& getGains() const { return m_gains; }
|
||||
|
||||
static MsgReportV4L* create(const std::vector<int>& gains)
|
||||
{
|
||||
return new MsgReportV4L(gains);
|
||||
}
|
||||
|
||||
protected:
|
||||
std::vector<int> m_gains;
|
||||
|
||||
MsgReportV4L(const std::vector<int>& gains) :
|
||||
Message(),
|
||||
m_gains(gains)
|
||||
{ }
|
||||
};
|
||||
|
||||
V4LInput(MessageQueue* msgQueueToGUI);
|
||||
~V4LInput();
|
||||
|
||||
@ -98,7 +78,6 @@ private:
|
||||
Settings m_settings;
|
||||
V4LThread* m_V4LThread;
|
||||
QString m_deviceDescription;
|
||||
std::vector<int> m_gains;
|
||||
|
||||
void applySettings(const GeneralSettings& generalSettings, const Settings& settings, bool force);
|
||||
};
|
||||
|
||||
@ -1,15 +1,14 @@
|
||||
#include <QtPlugin>
|
||||
#include <QAction>
|
||||
#include <rtl-sdr.h>
|
||||
#include "plugin/pluginapi.h"
|
||||
#include "util/simpleserializer.h"
|
||||
#include "v4lplugin.h"
|
||||
#include "v4lgui.h"
|
||||
|
||||
const PluginDescriptor V4LPlugin::m_pluginDescriptor = {
|
||||
QString("V4L Input"),
|
||||
QString("3.18"),
|
||||
QString("(c) 2014 John Greb"),
|
||||
QString("V4L SDRplay Input"),
|
||||
QString("4.0"),
|
||||
QString("(c) 2015 John Greb"),
|
||||
QString("http://palosaari.fi/linux/"),
|
||||
true,
|
||||
QString("github.com/hexameron/rtl-sdrangelove")
|
||||
@ -36,7 +35,7 @@ PluginInterface::SampleSourceDevices V4LPlugin::enumSampleSources()
|
||||
{
|
||||
SampleSourceDevices result;
|
||||
|
||||
QString displayedName(QString("Kernel Source #1"));
|
||||
QString displayedName(QString("Linux V4L (SDRplay)"));
|
||||
SimpleSerializer s(1);
|
||||
s.writeS32(1, 0);
|
||||
result.append(SampleSourceDevice(displayedName, "org.osmocom.sdr.samplesource.v4l", s.final()));
|
||||
|
||||
@ -29,22 +29,17 @@
|
||||
#include <fcntl.h>
|
||||
#include <sys/mman.h>
|
||||
|
||||
/* Control classes */
|
||||
#define V4L2_CTRL_CLASS_USER 0x00980000 /* Old-style 'user' controls */
|
||||
/* User-class control IDs */
|
||||
#define V4L2_CID_BASE (V4L2_CTRL_CLASS_USER | 0x900)
|
||||
#define V4L2_CID_USER_BASE V4L2_CID_BASE
|
||||
|
||||
#define CID_SAMPLING_MODE ((V4L2_CID_USER_BASE | 0xf000) + 0)
|
||||
#define CID_SAMPLING_RATE ((V4L2_CID_USER_BASE | 0xf000) + 1)
|
||||
#define CID_SAMPLING_RESOLUTION ((V4L2_CID_USER_BASE | 0xf000) + 2)
|
||||
#define CID_TUNER_RF ((V4L2_CID_USER_BASE | 0xf000) + 10)
|
||||
#define CID_TUNER_BW ((V4L2_CID_USER_BASE | 0xf000) + 11)
|
||||
#define CID_TUNER_IF ((V4L2_CID_USER_BASE | 0xf000) + 12)
|
||||
#define CID_TUNER_GAIN ((V4L2_CID_USER_BASE | 0xf000) + 13)
|
||||
#define CID_CLASS_RF (0x00a20000)
|
||||
#define CID_RF_TUNER_CLASS_BASE (0x00a20900)
|
||||
#define CID_TUNER_BW_AUTO (CID_RF_TUNER_CLASS_BASE + 11)
|
||||
#define CID_TUNER_BW (CID_RF_TUNER_CLASS_BASE + 12)
|
||||
#define CID_TUNER_LNA_GAIN (CID_RF_TUNER_CLASS_BASE + 42)
|
||||
#define CID_TUNER_MIXER_GAIN (CID_RF_TUNER_CLASS_BASE + 52)
|
||||
#define CID_TUNER_IF_GAIN (CID_RF_TUNER_CLASS_BASE + 62)
|
||||
|
||||
#define V4L2_PIX_FMT_SDR_U8 v4l2_fourcc('C', 'U', '0', '8') /* unsigned 8-bit Complex*/
|
||||
#define V4L2_PIX_FMT_SDR_U16LE v4l2_fourcc('C', 'U', '1', '6') /* unsigned 16-bit Complex*/
|
||||
#define V4L2_PIX_FMT_SDR_CS14LE v4l2_fourcc('C', 'S', '1', '4') /* signed 14-bit Complex*/
|
||||
|
||||
#define CLEAR(x) memset(&(x), 0, sizeof(x))
|
||||
|
||||
@ -63,7 +58,6 @@ static void xioctl(int fh, unsigned long int request, void *arg)
|
||||
void
|
||||
V4LThread::OpenSource(const char *filename)
|
||||
{
|
||||
struct v4l2_format fmt;
|
||||
struct v4l2_buffer buf;
|
||||
struct v4l2_requestbuffers req;
|
||||
enum v4l2_buf_type type;
|
||||
@ -77,15 +71,18 @@ V4LThread::OpenSource(const char *filename)
|
||||
qCritical("Cannot open /dev/swradio0 :%d", fd);
|
||||
return;
|
||||
}
|
||||
set_sample_rate( (double)SAMPLERATE );
|
||||
set_center_freq( (double)centerFreq );
|
||||
set_bandwidth( (double)IF_BANDWIDTH );
|
||||
set_tuner_gain( (double) 6.0);
|
||||
|
||||
pixelformat = V4L2_PIX_FMT_SDR_U8;
|
||||
// RTLSDR has limited ioctls in 3.18, expect fail.
|
||||
qCritical("Want Pixelformat : CU08");
|
||||
struct v4l2_format fmt;
|
||||
pixelformat = V4L2_PIX_FMT_SDR_CS14LE;
|
||||
CLEAR(fmt);
|
||||
fmt.type = V4L2_BUF_TYPE_SDR_CAPTURE;
|
||||
fmt.fmt.sdr.pixelformat = pixelformat;
|
||||
xioctl(fd, VIDIOC_S_FMT, &fmt);
|
||||
qCritical("Got Pixelformat : %4.4s", (char *)&fmt.fmt.sdr.pixelformat);
|
||||
qCritical(" Expecting format CS14LE, got : %4.4s", (char *)&fmt.fmt.sdr.pixelformat);
|
||||
|
||||
CLEAR(req);
|
||||
req.count = 8;
|
||||
@ -118,9 +115,6 @@ V4LThread::OpenSource(const char *filename)
|
||||
buf.index = i;
|
||||
xioctl(fd, VIDIOC_QBUF, &buf);
|
||||
}
|
||||
|
||||
set_sample_rate((double)SAMPLERATE);
|
||||
set_center_freq( centerFreq + (SAMPLERATE / 4) );
|
||||
// start streaming
|
||||
type = V4L2_BUF_TYPE_SDR_CAPTURE;
|
||||
xioctl(fd, VIDIOC_STREAMON, &type);
|
||||
@ -151,14 +145,11 @@ V4LThread::set_sample_rate(double samp_rate)
|
||||
memset (&frequency, 0, sizeof(frequency));
|
||||
frequency.tuner = 0;
|
||||
frequency.type = V4L2_TUNER_ADC;
|
||||
frequency.frequency = samp_rate / 1;
|
||||
|
||||
frequency.frequency = samp_rate;
|
||||
xioctl(fd, VIDIOC_S_FREQUENCY, &frequency);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
// Cannot change freq while streaming in Linux 4.0
|
||||
// Cannot change freq while streaming
|
||||
void
|
||||
V4LThread::set_center_freq(double freq)
|
||||
{
|
||||
@ -170,10 +161,7 @@ V4LThread::set_center_freq(double freq)
|
||||
frequency.tuner = 1;
|
||||
frequency.type = V4L2_TUNER_RF;
|
||||
frequency.frequency = freq;
|
||||
|
||||
xioctl(fd, VIDIOC_S_FREQUENCY, &frequency);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
void
|
||||
@ -182,18 +170,26 @@ V4LThread::set_bandwidth(double bandwidth)
|
||||
struct v4l2_ext_controls ext_ctrls;
|
||||
struct v4l2_ext_control ext_ctrl;
|
||||
|
||||
if (fd <= 0)
|
||||
return;
|
||||
|
||||
memset (&ext_ctrl, 0, sizeof(ext_ctrl));
|
||||
ext_ctrl.id = CID_TUNER_BW_AUTO;
|
||||
ext_ctrl.value = 0;
|
||||
memset (&ext_ctrls, 0, sizeof(ext_ctrls));
|
||||
ext_ctrls.ctrl_class = CID_CLASS_RF;
|
||||
ext_ctrls.count = 1;
|
||||
ext_ctrls.controls = &ext_ctrl;
|
||||
xioctl(fd, VIDIOC_S_EXT_CTRLS, &ext_ctrls);
|
||||
|
||||
memset (&ext_ctrl, 0, sizeof(ext_ctrl));
|
||||
ext_ctrl.id = CID_TUNER_BW;
|
||||
ext_ctrl.value = bandwidth;
|
||||
|
||||
memset (&ext_ctrls, 0, sizeof(ext_ctrls));
|
||||
ext_ctrls.ctrl_class = V4L2_CTRL_CLASS_USER;
|
||||
ext_ctrls.ctrl_class = CID_CLASS_RF;
|
||||
ext_ctrls.count = 1;
|
||||
ext_ctrls.controls = &ext_ctrl;
|
||||
|
||||
xioctl(fd, VIDIOC_S_EXT_CTRLS, &ext_ctrls);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
void
|
||||
@ -205,19 +201,39 @@ V4LThread::set_tuner_gain(double gain)
|
||||
if (fd <= 0)
|
||||
return;
|
||||
memset (&ext_ctrl, 0, sizeof(ext_ctrl));
|
||||
ext_ctrl.id = CID_TUNER_GAIN;
|
||||
ext_ctrl.id = CID_TUNER_IF_GAIN;
|
||||
ext_ctrl.value = gain;
|
||||
|
||||
memset (&ext_ctrls, 0, sizeof(ext_ctrls));
|
||||
ext_ctrls.ctrl_class = V4L2_CTRL_CLASS_USER;
|
||||
ext_ctrls.ctrl_class = CID_CLASS_RF;
|
||||
ext_ctrls.count = 1;
|
||||
ext_ctrls.controls = &ext_ctrl;
|
||||
|
||||
xioctl(fd, VIDIOC_S_EXT_CTRLS, &ext_ctrls);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
V4LThread::set_amps(bool lna, bool on)
|
||||
{
|
||||
struct v4l2_ext_controls ext_ctrls;
|
||||
struct v4l2_ext_control ext_ctrl;
|
||||
|
||||
if (fd <= 0)
|
||||
return;
|
||||
|
||||
memset (&ext_ctrl, 0, sizeof(ext_ctrl));
|
||||
memset (&ext_ctrls, 0, sizeof(ext_ctrls));
|
||||
if (lna)
|
||||
ext_ctrl.id = CID_TUNER_LNA_GAIN;
|
||||
else
|
||||
ext_ctrl.id = CID_TUNER_MIXER_GAIN;
|
||||
ext_ctrl.value = on;
|
||||
ext_ctrls.ctrl_class = CID_CLASS_RF;
|
||||
ext_ctrls.count = 1;
|
||||
ext_ctrls.controls = &ext_ctrl;
|
||||
xioctl(fd, VIDIOC_S_EXT_CTRLS, &ext_ctrls);
|
||||
}
|
||||
|
||||
#define CASTUP (int)(qint16)
|
||||
int
|
||||
V4LThread::work(int noutput_items)
|
||||
{
|
||||
@ -225,33 +241,36 @@ V4LThread::work(int noutput_items)
|
||||
struct timeval tv;
|
||||
struct v4l2_buffer buf;
|
||||
fd_set fds;
|
||||
qint16 xreal, yimag;
|
||||
uint8_t* b;
|
||||
int xreal, yimag;
|
||||
uint16_t* b;
|
||||
SampleVector::iterator it;
|
||||
|
||||
unsigned int pos = 0;
|
||||
// in is 4*8bit*2(IQ), 8 bytes; out is 1*16bit*2(IQ) , 4bytes
|
||||
// MSI format is 252 sample pairs :( 63 * 4) * 4bytes
|
||||
it = m_convertBuffer.begin();
|
||||
if (recebuf_len > 0) {
|
||||
b = (uint8_t *) recebuf_ptr;
|
||||
unsigned int len = noutput_items * 8;
|
||||
if (len > recebuf_len)
|
||||
len = recebuf_len;
|
||||
if (recebuf_len >= 16) { // in bytes
|
||||
b = (uint16_t *) recebuf_ptr;
|
||||
unsigned int len = 8 * noutput_items; // decimation (i+q * 4 : cmplx)
|
||||
if (len * 2 > recebuf_len)
|
||||
len = recebuf_len / 2;
|
||||
// Decimate by four for lower cpu usage
|
||||
for (pos = 0; pos < len - 7; pos += 8) {
|
||||
xreal = b[pos+0] - b[pos+3] + b[pos+7] - b[pos+4];
|
||||
yimag = b[pos+1] - b[pos+5] + b[pos+2] - b[pos+6];
|
||||
Sample s( xreal << 3, yimag << 3 );
|
||||
xreal = CASTUP(b[pos+0]<<2) + CASTUP(b[pos+2]<<2)
|
||||
+ CASTUP(b[pos+4]<<2) + CASTUP(b[pos+6]<<2);
|
||||
yimag = CASTUP(b[pos+1]<<2) + CASTUP(b[pos+3]<<2)
|
||||
+ CASTUP(b[pos+5]<<2) + CASTUP(b[pos+7]<<2);
|
||||
Sample s( (qint16)(xreal >> 2) , (qint16)(yimag >> 2) );
|
||||
*it = s;
|
||||
it++;
|
||||
}
|
||||
m_sampleFifo->write(m_convertBuffer.begin(), it);
|
||||
recebuf_len -= pos;
|
||||
recebuf_ptr = (void*)(b + pos);
|
||||
recebuf_len -= pos * 2; // size of int16
|
||||
recebuf_ptr = &b[pos];
|
||||
}
|
||||
// return now if there is still data in buffer, else free buffer and get another.
|
||||
if (recebuf_len >= 8)
|
||||
if (recebuf_len >= 16)
|
||||
return pos / 8;
|
||||
{ // frre buffer, if there was one.
|
||||
{ // free buffer, if there was one.
|
||||
if (pos > 0) {
|
||||
CLEAR(buf);
|
||||
buf.type = V4L2_BUF_TYPE_SDR_CAPTURE;
|
||||
|
||||
@ -24,8 +24,10 @@
|
||||
#include "dsp/samplefifo.h"
|
||||
#include "dsp/inthalfbandfilter.h"
|
||||
|
||||
#define SAMPLERATE 1024000
|
||||
#define BLOCKSIZE 4096
|
||||
// lowest samplerate in the kernel is 1.2M, but this works better
|
||||
#define SAMPLERATE 1536000
|
||||
#define IF_BANDWIDTH 300000
|
||||
#define BLOCKSIZE 8192
|
||||
|
||||
class V4LThread : public QThread {
|
||||
Q_OBJECT
|
||||
@ -41,6 +43,7 @@ public:
|
||||
void set_center_freq(double freq);
|
||||
void set_bandwidth(double bandwidth);
|
||||
void set_tuner_gain(double gain);
|
||||
void set_amps(bool lna, bool on);
|
||||
int work(int n_items);
|
||||
private:
|
||||
int fd;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user