Updated versions and changelogs

CHANGELOG

@@ -1,3 +1,11 @@
+sdrangel (6.17.6-1) unstable; urgency=medium
+
+  * Remote plugins: added capability to choose sample size in transmission. Implements #1078
+  * Remote input: added some control of remote instance. Implements #1074
+  * Remote Input: fixed segfault when stream sample rate is lowered
+
+  -- Edouard Griffiths, F4EXB <f4exb06@gmail.com>  Sun, 26 Dec 2021 11:10:26 +0100
+
 sdrangel (6.17.5-1) unstable; urgency=medium
 
   * ADSB demod and VOR feature: Always use C locale for parsing coords in airport database.

CMakeLists.txt

@@ -16,7 +16,7 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 # configure version
 set(sdrangel_VERSION_MAJOR "6")
 set(sdrangel_VERSION_MINOR "17")
-set(sdrangel_VERSION_PATCH "5")
+set(sdrangel_VERSION_PATCH "6")
 set(sdrangel_VERSION_SUFFIX "")
 
 # SDRAngel cmake options

debian/changelog

@@ -1,3 +1,11 @@
+sdrangel (6.17.6-1) unstable; urgency=medium
+
+  * Remote plugins: added capability to choose sample size in transmission. Implements #1078
+  * Remote input: added some control of remote instance. Implements #1074
+  * Remote Input: fixed segfault when stream sample rate is lowered
+
+  -- Edouard Griffiths, F4EXB <f4exb06@gmail.com>  Sun, 26 Dec 2021 11:10:26 +0100
+
 sdrangel (6.17.5-1) unstable; urgency=medium
 
   * ADSB demod and VOR feature: Always use C locale for parsing coords in airport database.

plugins/channelrx/remotesink/remotesink.cpp

@@ -35,6 +35,7 @@
 #include "dsp/hbfilterchainconverter.h"
 #include "dsp/devicesamplemimo.h"
 #include "dsp/dspdevicesourceengine.h"
+#include "dsp/devicesamplesource.h"
 #include "device/deviceapi.h"
 #include "feature/feature.h"
 #include "settings/serializable.h"
@@ -54,6 +55,7 @@ RemoteSink::RemoteSink(DeviceAPI *deviceAPI) :
         m_basebandSampleRate(0)
 {
     setObjectName(m_channelId);
+    updateWithDeviceData();
 
     m_basebandSink = new RemoteSinkBaseband();
     m_basebandSink->moveToThread(&m_thread);
@@ -96,6 +98,8 @@ void RemoteSink::start()
 {
     qDebug("RemoteSink::start: m_basebandSampleRate: %d", m_basebandSampleRate);
     m_basebandSink->reset();
+    m_basebandSink->setDeviceIndex(m_deviceAPI->getDeviceSetIndex());
+    m_basebandSink->setChannelIndex(getIndexInDeviceSet());
     m_basebandSink->startWork();
     m_thread.start();
 
@@ -128,6 +132,7 @@ bool RemoteSink::handleMessage(const Message& cmd)
         m_basebandSampleRate = notif.getSampleRate();
         qDebug() << "RemoteSink::handleMessage: DSPSignalNotification: m_basebandSampleRate:" << m_basebandSampleRate;
         calculateFrequencyOffset();
+        updateWithDeviceData(); // Device center frequency and/or sample rate has changed
 
         // Forward to the sink
         DSPSignalNotification* msgToBaseband = new DSPSignalNotification(notif); // make a copy
@@ -199,6 +204,17 @@ void RemoteSink::applySettings(const RemoteSinkSettings& settings, bool force)
         reverseAPIKeys.append("title");
     }
 
+    if ((m_settings.m_deviceCenterFrequency != settings.m_deviceCenterFrequency) || force)
+    {
+        reverseAPIKeys.append("deviceCenterFrequency");
+
+        if (m_deviceAPI->getSampleSource()) {
+            m_deviceAPI->getSampleSource()->setCenterFrequency(settings.m_deviceCenterFrequency);
+        } else if (m_deviceAPI->getSampleMIMO()) {
+            m_deviceAPI->getSampleMIMO()->setSourceCenterFrequency(settings.m_deviceCenterFrequency, settings.m_streamIndex);
+        }
+    }
+
     if ((m_settings.m_log2Decim != settings.m_log2Decim) || force)
     {
         reverseAPIKeys.append("log2Decim");
@@ -275,6 +291,15 @@ void RemoteSink::calculateFrequencyOffset()
     m_frequencyOffset = m_basebandSampleRate * shiftFactor;
 }
 
+void RemoteSink::updateWithDeviceData()
+{
+    if (m_deviceAPI->getSampleSource()) {
+        m_settings.m_deviceCenterFrequency = m_deviceAPI->getSampleSource()->getCenterFrequency();
+    } else if (m_deviceAPI->getSampleMIMO()) {
+        m_settings.m_deviceCenterFrequency = m_deviceAPI->getSampleMIMO()->getSourceCenterFrequency(m_settings.m_streamIndex);
+    }
+}
+
 int RemoteSink::webapiSettingsGet(
         SWGSDRangel::SWGChannelSettings& response,
         QString& errorMessage)
@@ -332,6 +357,10 @@ void RemoteSink::webapiUpdateChannelSettings(
         settings.m_nbTxBytes = response.getRemoteSinkSettings()->getNbTxBytes();
     }
 
+    if (channelSettingsKeys.contains("deviceCenterFrequency")) {
+        settings.m_deviceCenterFrequency = response.getRemoteSinkSettings()->getDeviceCenterFrequency();
+    }
+
     if (channelSettingsKeys.contains("dataAddress")) {
         settings.m_dataAddress = *response.getRemoteSinkSettings()->getDataAddress();
     }
@@ -398,6 +427,7 @@ void RemoteSink::webapiFormatChannelSettings(SWGSDRangel::SWGChannelSettings& re
     }
 
     response.getRemoteSinkSettings()->setNbTxBytes(settings.m_nbTxBytes);
+    response.getRemoteSinkSettings()->setDeviceCenterFrequency(settings.m_deviceCenterFrequency);
     response.getRemoteSinkSettings()->setDataPort(settings.m_dataPort);
     response.getRemoteSinkSettings()->setRgbColor(settings.m_rgbColor);
 
@@ -506,6 +536,9 @@ void RemoteSink::webapiFormatChannelSettings(
     if (channelSettingsKeys.contains("nbTxBytes") || force) {
         swgRemoteSinkSettings->setNbTxBytes(settings.m_nbTxBytes);
     }
+    if (channelSettingsKeys.contains("deviceCenterFrequency") || force) {
+        swgRemoteSinkSettings->setDeviceCenterFrequency(settings.m_deviceCenterFrequency);
+    }
     if (channelSettingsKeys.contains("dataAddress") || force) {
         swgRemoteSinkSettings->setDataAddress(new QString(settings.m_dataAddress));
     }

plugins/channelrx/remotesink/remotesink.h

@@ -130,6 +130,7 @@ private:
     void applySettings(const RemoteSinkSettings& settings, bool force = false);
     static void validateFilterChainHash(RemoteSinkSettings& settings);
     void calculateFrequencyOffset();
+    void updateWithDeviceData();
     void webapiReverseSendSettings(QList<QString>& channelSettingsKeys, const RemoteSinkSettings& settings, bool force);
     void sendChannelSettings(
         QList<MessageQueue*> *messageQueues,

plugins/channelrx/remotesink/remotesinkbaseband.h

@@ -70,6 +70,8 @@ public:
     MessageQueue *getInputMessageQueue() { return &m_inputMessageQueue; } //!< Get the queue for asynchronous inbound communication
     int getChannelSampleRate() const;
     void setBasebandSampleRate(int sampleRate);
+    void setDeviceIndex(uint32_t deviceIndex) { m_sink.setDeviceIndex(deviceIndex); }
+    void setChannelIndex(uint32_t channelIndex) { m_sink.setChannelIndex(channelIndex); }
 
 private:
     bool m_running;

plugins/channelrx/remotesink/remotesinkplugin.cpp

@@ -30,7 +30,7 @@
 const PluginDescriptor RemoteSinkPlugin::m_pluginDescriptor = {
     RemoteSink::m_channelId,
     QStringLiteral("Remote channel sink"),
-    QStringLiteral("6.17.4"),
+    QStringLiteral("6.17.6"),
     QStringLiteral("(c) Edouard Griffiths, F4EXB"),
     QStringLiteral("https://github.com/f4exb/sdrangel"),
     true,

plugins/channelrx/remotesink/remotesinksender.cpp

@@ -68,6 +68,12 @@ void RemoteSinkSender::started()
 void RemoteSinkSender::stopWork()
 {
     qDebug("RemoteSinkSender::stopWork");
+    QObject::disconnect(
+        &m_fifo,
+        &RemoteSinkFifo::dataBlockServed,
+        this,
+        &RemoteSinkSender::handleData
+    );
 }
 
 void RemoteSinkSender::finished()

plugins/channelrx/remotesink/remotesinksettings.cpp

@@ -38,6 +38,7 @@ void RemoteSinkSettings::resetToDefaults()
 {
     m_nbFECBlocks = 0;
     m_nbTxBytes = 2;
+    m_deviceCenterFrequency = 0;
     m_dataAddress = "127.0.0.1";
     m_dataPort = 9090;
     m_rgbColor = QColor(140, 4, 4).rgb();
@@ -71,6 +72,7 @@ QByteArray RemoteSinkSettings::serialize() const
     s.writeU32(13, m_filterChainHash);
     s.writeS32(14, m_streamIndex);
     s.writeBlob(15, m_rollupState);
+    s.writeU64(16, m_deviceCenterFrequency);
 
     return s.final();
 }
@@ -129,6 +131,7 @@ bool RemoteSinkSettings::deserialize(const QByteArray& data)
         d.readU32(13, &m_filterChainHash, 0);
         d.readS32(14, &m_streamIndex, 0);
         d.readBlob(15, &m_rollupState);
+        d.readU64(16, &m_deviceCenterFrequency, 0);
 
         return true;
     }

plugins/channelrx/remotesink/remotesinksettings.h

@@ -33,6 +33,7 @@ struct RemoteSinkSettings
 {
     uint16_t m_nbFECBlocks;
     uint32_t m_nbTxBytes;
+    quint64 m_deviceCenterFrequency;
     QString  m_dataAddress;
     uint16_t m_dataPort;
     quint32 m_rgbColor;

plugins/channelrx/remotesink/remotesinksink.cpp

@@ -131,6 +131,8 @@ void RemoteSinkSink::feed(const SampleVector::const_iterator& begin, const Sampl
             metaData.m_sampleBits = getNbSampleBits();
             metaData.m_nbOriginalBlocks = RemoteNbOrginalBlocks;
             metaData.m_nbFECBlocks = m_nbBlocksFEC;
+            metaData.m_deviceIndex = m_deviceIndex % 256;
+            metaData.m_channelIndex = m_channelIndex % 256;
             metaData.m_tv_sec = nowus / 1000000UL;  // tv.tv_sec;
             metaData.m_tv_usec = nowus % 1000000UL; // tv.tv_usec;
 
@@ -160,6 +162,8 @@ void RemoteSinkSink::feed(const SampleVector::const_iterator& begin, const Sampl
                         << ":" << (int) metaData.m_sampleBits
                         << "|" << (int) metaData.m_nbOriginalBlocks
                         << ":" << (int) metaData.m_nbFECBlocks
+                        << "|" << metaData.m_deviceIndex
+                        << ":" << metaData.m_channelIndex
                         << "|" << metaData.m_tv_sec
                         << ":" << metaData.m_tv_usec;
 

plugins/channelrx/remotesink/remotesinksink.h

@@ -46,6 +46,8 @@ public:
     void applySettings(const RemoteSinkSettings& settings, bool force = false);
     void applyBasebandSampleRate(uint32_t sampleRate);
     void setDeviceCenterFrequency(uint64_t frequency) { m_deviceCenterFrequency = frequency; }
+    void setDeviceIndex(uint32_t deviceIndex) { m_deviceIndex = deviceIndex; }
+    void setChannelIndex(uint32_t channelIndex) { m_channelIndex = channelIndex; }
 
 private:
     RemoteSinkSettings m_settings;
@@ -63,6 +65,8 @@ private:
     uint64_t m_deviceCenterFrequency;
     int64_t m_frequencyOffset;
     uint32_t m_basebandSampleRate;
+    uint32_t m_deviceIndex;
+    uint32_t m_channelIndex;
     int m_nbBlocksFEC;
     uint32_t m_nbTxBytes;
     QString m_dataAddress;

plugins/channeltx/remotesource/remotesourceplugin.cpp

@@ -28,7 +28,7 @@
 const PluginDescriptor RemoteSourcePlugin::m_pluginDescriptor = {
     RemoteSource::m_channelId,
     QStringLiteral("Remote channel source"),
-    QStringLiteral("6.17.5"),
+    QStringLiteral("6.17.6"),
     QStringLiteral("(c) Edouard Griffiths, F4EXB"),
     QStringLiteral("https://github.com/f4exb/sdrangel"),
     true,

plugins/channeltx/remotesource/remotesourcesource.cpp

@@ -218,6 +218,8 @@ void RemoteSourceSource::printMeta(const QString& header, RemoteMetaDataFEC *met
             << ":" << (int) metaData->m_sampleBits
             << ":" << (int) metaData->m_nbOriginalBlocks
             << ":" << (int) metaData->m_nbFECBlocks
+            << "|" << metaData->m_deviceIndex
+            << ":" << metaData->m_channelIndex
             << "|" << metaData->m_tv_sec
             << ":" << metaData->m_tv_usec
             << "|";

plugins/samplesink/remoteoutput/remoteoutput.cpp

@@ -90,6 +90,7 @@ bool RemoteOutput::start()
 
 	m_remoteOutputWorker = new RemoteOutputWorker(&m_sampleSourceFifo);
     m_remoteOutputWorker->moveToThread(&m_remoteOutputWorkerThread);
+    m_remoteOutputWorker->setDeviceIndex(m_deviceAPI->getDeviceSetIndex());
 	m_remoteOutputWorker->setDataAddress(m_settings.m_dataAddress, m_settings.m_dataPort);
 	m_remoteOutputWorker->setSamplerate(m_sampleRate);
 	m_remoteOutputWorker->setNbBlocksFEC(m_settings.m_nbFECBlocks);

plugins/samplesink/remoteoutput/remoteoutputgui.cpp

@@ -41,8 +41,6 @@
 
 #include "channel/remotedatablock.h"
 
-#include "udpsinkfec.h"
-
 RemoteOutputSinkGui::RemoteOutputSinkGui(DeviceUISet *deviceUISet, QWidget* parent) :
 	DeviceGUI(parent),
 	ui(new Ui::RemoteOutputGui),

plugins/samplesink/remoteoutput/remoteoutputplugin.cpp

@@ -31,7 +31,7 @@
 const PluginDescriptor RemoteOutputPlugin::m_pluginDescriptor = {
     QStringLiteral("RemoteOutput"),
 	QStringLiteral("Remote device output"),
-	QStringLiteral("6.17.5"),
+	QStringLiteral("6.17.6"),
 	QStringLiteral("(c) Edouard Griffiths, F4EXB"),
 	QStringLiteral("https://github.com/f4exb/sdrangel"),
 	true,

plugins/samplesink/remoteoutput/remoteoutputworker.h

@@ -47,6 +47,7 @@ public:
 	void startWork();
 	void stopWork();
 
+    void setDeviceIndex(uint32_t deviceIndex) { m_udpSinkFEC.setDeviceIndex(deviceIndex); }
 	void setSamplerate(int samplerate);
     void setNbBlocksFEC(uint32_t nbBlocksFEC) { m_udpSinkFEC.setNbBlocksFEC(nbBlocksFEC); };
     void setNbTxBytes(uint32_t nbTxBytes) { m_udpSinkFEC.setNbTxBytes(nbTxBytes); };

plugins/samplesink/remoteoutput/udpsinkfec.cpp

@@ -120,6 +120,8 @@ void UDPSinkFEC::write(const SampleVector::iterator& begin, uint32_t sampleChunk
             metaData.m_sampleBits = getNbSampleBits();
             metaData.m_nbOriginalBlocks = RemoteNbOrginalBlocks;
             metaData.m_nbFECBlocks = m_nbBlocksFEC;
+            metaData.m_deviceIndex = m_deviceIndex; // index of device set in the instance
+            metaData.m_channelIndex = 0; // irrelavant
             metaData.m_tv_sec = nowus / 1000000UL;  // tv.tv_sec;
             metaData.m_tv_usec = nowus % 1000000UL; // tv.tv_usec;
 
@@ -149,6 +151,8 @@ void UDPSinkFEC::write(const SampleVector::iterator& begin, uint32_t sampleChunk
                         << ":" << (int) metaData.m_sampleBits
                         << "|" << (int) metaData.m_nbOriginalBlocks
                         << ":" << (int) metaData.m_nbFECBlocks
+                        << "|" << metaData.m_deviceIndex
+                        << ":" << metaData.m_channelIndex
                         << "|" << metaData.m_tv_sec
                         << ":" << metaData.m_tv_usec;
 

plugins/samplesink/remoteoutput/udpsinkfec.h

@@ -64,6 +64,7 @@ public:
         return ret;
     }
 
+    void setDeviceIndex(uint32_t deviceIndex) { m_deviceIndex = deviceIndex; }
     /** Set sample rate given in S/s */
     void setSampleRate(uint32_t sampleRate);
 
@@ -94,6 +95,7 @@ private:
     int m_txBlockIndex;                     //!< Current index in blocks to transmit in the Tx row
     uint16_t m_frameCount;                  //!< transmission frame count
     int m_sampleIndex;                      //!< Current sample index in protected block data
+    uint32_t m_deviceIndex;              //!< Index of current device set
 
     RemoteOutputSender *m_remoteOutputSender;
     QThread *m_senderThread;

plugins/samplesource/remoteinput/readme.md

@@ -10,7 +10,7 @@ Please note that there is no provision for handling out of sync UDP blocks. It i
 
 The remote SDRangel instance that sends the data stream is controlled via its REST API using a separate control software for example [SDRangelcli](https://github.com/f4exb/sdrangelcli)
 
-A sample size conversion takes place if the stream sample size sent by the remote instance and the Rx sample size of the local instance do not match (i.e. 16 to 24 bits or 24 to 16 bits). Best performance is obtained when both instances use the same sample size.
+A sample size conversion takes place if the stream sample size sent by the remote instance and the Rx sample size of the local instance do not match (i.e. 8, 16 to 24 bits or 8, 24 to 16 bits). Best performance is obtained when the stream sample size matches the instance sample size.
 
 <h2>Build</h2>
 
@@ -35,22 +35,54 @@ This is the center frequency in Hz sent in the meta data from the remote SDRange
 
 Stream I/Q sample rate in kS/s
 
-<h3>4: Auto correction options and stream status</h3>
+<h3>4: Set remote device center frequency</h3>
+
+Uses the API at the address and port specified in (12) to control the remote device center frequency (kHz)
+
+<h3>5: Remote sink channel decimation factor</h3>
+
+The remote device baseband can be decimated in the remote sink channel and its center can be selected with (8). The resulting sample rate of the I/Q stream sent over the network is the remote device baseband sample rate divided by this value. The value is displayed in (3).
+
+It uses the API at the address and port specified in (12) to control the remote sink channel.
+
+<h3>6: Remote sink half band filters chain sequence</h3>
+
+This string represents the sequence of half-band filters used in the decimation from device baseband to resulting I/Q stream. Each character represents a filter type:
+
+  - **L**: lower half-band
+  - **H**: higher half-band
+  - **C**: centered
+
+<h3>7: Remote sink center frequency shift</h3>
+
+This is the shift of the remote sink channel center frequency from the remte device center frequency. Its value is driven by the remote device sample rate, the decimation (5) and the filter chain sequence (8).
+
+<h3>8: Remote sink half-band filter chain sequence</h3>
+
+The slider moves the remote sink channel center frequency roughly from the lower to the higher frequency in the remote device baseband. The number on the right represents the filter sequence as the decimal value of a base 3 number. Each base 3 digit represents the filter type and its sequence from MSB to LSB in the filter chain:
+
+  - **0**: lower half-band
+  - **1**: centered
+  - **2**: higher half-band
+
+It uses the API at the address and port specified in (12) to control the remote sink channel.
+
+<h3>9: Auto correction options and stream status</h3>
 
 ![SDR Remote input stream GUI](../../../doc/img/RemoteInput_plugin_02.png)
 
-<h4>4.1: Auto correction options</h4>
+<h4>9.1: Auto correction options</h4>
 
 These buttons control the local DSP auto correction options:
 
   - **DC**: auto remove DC component
   - **IQ**: auto make I/Q balance
 
-<h4>4.2: Receive buffer length</h4>
+<h4>9.2: Receive buffer length</h4>
 
 This is the main buffer (writes from UDP / reads from DSP engine) length in units of time (seconds). As read and write pointers are normally about half the buffer apart the nominal delay introduced by the buffer is the half of this value.
 
-<h4>4.3: Main buffer R/W pointers positions</h4>
+<h4>9.3: Main buffer R/W pointers positions</h4>
 
 Read and write pointers should always be a half buffer distance buffer apart. This is the difference in percent of the main buffer size from this ideal position.
 
@@ -59,11 +91,11 @@ Read and write pointers should always be a half buffer distance buffer apart. Th
 
 This corresponds to the value shown in the gauges above (9)
 
-<h4>4.4: Date/time</h4>
+<h4>9.4: Date/time</h4>
 
 This is the current timestamp of the block of data sent from the receiver. It is refreshed about every second. The plugin tries to take into account the buffer that is used between the data received from the network and the data effectively used by the system however this may not be extremely accurate. It is based on the timestamps sent from the Remote sink channel at the other hand that does not take into account its own buffers.
 
-<h3>5: Main buffer R/W pointers gauge</h3>
+<h3>10: Main buffer R/W pointers gauge</h3>
 
 There are two gauges separated by a dot in the center. Ideally these gauges should not display any value thus read and write pointers are always half a buffer apart. However due to the fact that a whole frame is reconstructed at once up to ~10% variation is normal and should appear on the left gauge (write leads).
 
@@ -72,15 +104,15 @@ There are two gauges separated by a dot in the center. Ideally these gauges shou
 
 The system tries to compensate read / write unbalance however at start or when a large stream disruption has occurred a delay of a few tens of seconds is necessary before read / write reaches equilibrium.
 
-<h3>6: Data stream status</h3>
+<h3>11: Data stream status</h3>
 
 ![SDR Remote input stream GUI](../../../doc/img/RemoteInput_plugin_04.png)
 
-<h4>6.1: Sample size</h4>
+<h4>11.1: Sample size</h4>
 
 This is the size in bits of a I or Q sample sent in the stream by the remote server.
 
-<h4>6.2: Total number of frames and number of FEC blocks</h4>
+<h4>11.2: Total number of frames and number of FEC blocks</h4>
 
 This is the total number of frames and number of FEC blocks separated by a slash '/' as sent in the meta data block thus acknowledged by the remote server. When you set the number of FEC blocks with (4.1) the effect may not be immediate and this information can be used to monitor when it gets effectively set in the remote server.
 
@@ -88,7 +120,7 @@ A frame consists of 128 data blocks (1 meta data block followed by 127 I/Q data
 
 Using the Cauchy MDS block erasure correction ensures that if at least the number of data blocks (128) is received per complete frame then all lost blocks in any position can be restored. For example if 8 FEC blocks are used then 136 blocks are transmitted per frame. If only 130 blocks (128 or greater) are received then data can be recovered. If only 127 blocks (or less) are received then none of the lost blocks can be recovered.
 
-<h4>6.3: Stream status</h4>
+<h4>11.3: Stream status</h4>
 
 The color of the icon indicates stream status:
 
@@ -96,82 +128,82 @@ The color of the icon indicates stream status:
   - No color: some original blocks were reconstructed from FEC blocks for some frames during the last polling timeframe (ex: between 128 and 135)
   - Red: some original blocks were definitely lost for some frames during the last polling timeframe (ex: less than 128)
 
-<h4>6.4: Minimum total number of blocks per frame</h4>
+<h4>11.4: Minimum total number of blocks per frame</h4>
 
 This is the minimum total number of blocks per frame during the last polling period. If all blocks were received for all frames then this number is the nominal number of original blocks plus FEC blocks (Green lock icon). In our example this is 128+8 = 136.
 
 If this number falls below 128 then some blocks are definitely lost and the lock lights in red.
 
-<h4>6.5: Maximum number of FEC blocks used by frame</h4>
+<h4>11.5: Maximum number of FEC blocks used by frame</h4>
 
 Maximum number of FEC blocks used for original blocks recovery during the last polling timeframe. Ideally this should be 0 when no blocks are lost but the system is able to correct lost blocks up to the nominal number of FEC blocks (Neutral lock icon).
 
-<h4>6.6: Reset events counters</h4>
+<h4>11.6: Reset events counters</h4>
 
-This push button can be used to reset the events counters (4.7 and 4.8) and reset the event counts timer (4.9)
+This push button can be used to reset the events counters (9.7 and 9.8) and reset the event counts timer (9.9)
 
-<h4>6.7: Unrecoverable error events counter</h4>
+<h4>11.7: Unrecoverable error events counter</h4>
 
-This counter counts the unrecoverable error conditions found (i.e. 4.4 lower than 128) since the last counters reset.
+This counter counts the unrecoverable error conditions found (i.e. 9.4 lower than 128) since the last counters reset.
 
-<h4>6.8: Recoverable error events counter</h4>
+<h4>11.8: Recoverable error events counter</h4>
 
-This counter counts the unrecoverable error conditions found (i.e. 4.4 between 128 and 128 plus the number of FEC blocks) since the last counters reset.
+This counter counts the unrecoverable error conditions found (i.e. 9.4 between 128 and 128 plus the number of FEC blocks) since the last counters reset.
 
-<h4>6.9: events counters timer</h4>
+<h4>11.9: events counters timer</h4>
 
-This HH:mm:ss time display shows the time since the reset events counters button (4.6) was pushed.
+This HH:mm:ss time display shows the time since the reset events counters button (9.6) was pushed.
 
-<h3>7: Remote server test</h3>
+<h3>12: Remote server test</h3>
 
 Test remote connection with its API.
 
 ![SDR Remote input stream GUI](../../../doc/img/RemoteInput_plugin_05.png)
 
-<h4>7.1: Remote connection indicator</h4>
+<h4>12.1: Remote connection indicator</h4>
 
 The "Remote" label is lit in green when the connection is successful
 
-<h4>7.2: API IP address</h4>
+<h4>12.2: API IP address</h4>
 
 IP address of the remote SDRangel instance REST API
 
-<h4>7.3: API port</h4>
+<h4>12.3: API port</h4>
 
 Port of the remote SDRangel instance REST API
 
-<h4>7.4: Get information button</h4>
+<h4>12.4: Get information button</h4>
 
-When the return key is hit within the address (5.2) or port (5.3) the changes are effective immediately. You can also use this button to set again these values. Clicking on this button will send a request to the API to get the remote SDRangel instance information that is displayed in the API message box (8)
+When the return key is hit within the address (10.2) or port (10.3) the changes are effective immediately. You can also use this button to set again these values. Clicking on this button will send a request to the API to get the remote SDRangel instance information that is displayed in the API message box (13)
 
-<h3>8: Local network interface address and port for data reception</h3>
+<h3>13: Local network interface address and port for data reception</h3>
 
 ![SDR Remote source input stream GUI](../../../doc/img/RemoteInput_plugin_06.png)
 
-<h4>8.1: Interface IP address</h4>
+<h4>13.1: Interface IP address</h4>
 
-IP address of the local network interface the remote SDRangel instance sends the data to. Effective when the validation button (8.3) is pressed.
+IP address of the local network interface the remote SDRangel instance sends the data to. Effective when the validation button (13.3) is pressed.
 
-<h4>8.2: Interface port</h4>
+<h4>13.2: Interface port</h4>
 
-Local port the remote SDRangel instance sends the data to.  Effective when the validation button (8.3) is pressed.
+Local port the remote SDRangel instance sends the data to.  Effective when the validation button (13.3) is pressed.
 
-<h4>8.3: Validation button</h4>
+<h4>13.3: Validation button</h4>
 
-When the return key is hit within the interface address (8.2), port (8.3), multicast group address (10) and multicast group join/leave (9) the changes of parameters for data reception are ready for commit and this button turns green. You then push this button to commit the changes.
+When the return key is hit within the interface address (13.2), port (13.3), multicast group address (15) and multicast group join/leave (14) the changes of parameters for data reception are ready for commit and this button turns green. You then push this button to commit the changes.
 
-<h3>9: Join or leave multicast group</h3>
+<h3>14: Join or leave multicast group</h3>
 
-Use this toggle button to join or leave the multicast group which address is specified next (10). Effective when the validation button (8.3) is pressed.
+Use this toggle button to join or leave the multicast group which address is specified next (15). Effective when the validation button (13.3) is pressed.
 
-<h3>10: Multicast group address</h3>
+<h3>15: Multicast group address</h3>
 
-This is the address of the multicast group. Effective when the validation button (8.3) is pressed.
+This is the address of the multicast group. Effective when the validation button (13.3) is pressed.
 
-<h3>11: Status message</h3>
+<h3>16: Status message</h3>
 
 The API status is displayed in this box. It shows "API OK" when the connection is successful and reply is OK
 
-<h3>12: Remote information</h3>
+<h3>17: Remote information</h3>
 
 This is the information returned by the remote when connection with its API is successful

plugins/samplesource/remoteinput/remoteinput.cpp

@@ -21,8 +21,10 @@
 #include <QDebug>
 #include <QNetworkReply>
 #include <QBuffer>
+#include <QJsonParseError>
 
 #include "SWGDeviceSettings.h"
+#include "SWGChannelSettings.h"
 #include "SWGDeviceState.h"
 #include "SWGDeviceReport.h"
 #include "SWGRemoteInputReport.h"
@@ -40,7 +42,11 @@ MESSAGE_CLASS_DEFINITION(RemoteInput::MsgConfigureRemoteInputTiming, Message)
 MESSAGE_CLASS_DEFINITION(RemoteInput::MsgReportRemoteInputAcquisition, Message)
 MESSAGE_CLASS_DEFINITION(RemoteInput::MsgReportRemoteInputStreamData, Message)
 MESSAGE_CLASS_DEFINITION(RemoteInput::MsgReportRemoteInputStreamTiming, Message)
+MESSAGE_CLASS_DEFINITION(RemoteInput::MsgConfigureRemoteChannel, Message)
 MESSAGE_CLASS_DEFINITION(RemoteInput::MsgStartStop, Message)
+MESSAGE_CLASS_DEFINITION(RemoteInput::MsgReportRemoteFixedData, Message)
+MESSAGE_CLASS_DEFINITION(RemoteInput::MsgReportRemoteAPIError, Message)
+MESSAGE_CLASS_DEFINITION(RemoteInput::MsgRequestFixedData, Message)
 
 RemoteInput::RemoteInput(DeviceAPI *deviceAPI) :
     m_deviceAPI(deviceAPI),
@@ -63,6 +69,7 @@ RemoteInput::RemoteInput(DeviceAPI *deviceAPI) :
 
 RemoteInput::~RemoteInput()
 {
+    disconnect(m_remoteInputUDPHandler, SIGNAL(metaChanged()), this, SLOT(handleMetaChanged()));
     disconnect(m_networkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(networkManagerFinished(QNetworkReply*)));
     delete m_networkManager;
 	stop();
@@ -156,19 +163,31 @@ bool RemoteInput::isStreaming() const
 
 bool RemoteInput::handleMessage(const Message& message)
 {
-    if (RemoteInputUDPHandler::MsgReportSampleRateChange::match(message))
+    if (RemoteInputUDPHandler::MsgReportMetaDataChange::match(message))
     {
-        RemoteInputUDPHandler::MsgReportSampleRateChange& notif = (RemoteInputUDPHandler::MsgReportSampleRateChange&) message;
-        int sampleRate = notif.getSampleRate();
+        qDebug() << "RemoteInput::handleMessage:" << message.getIdentifier();
+        RemoteInputUDPHandler::MsgReportMetaDataChange& notif = (RemoteInputUDPHandler::MsgReportMetaDataChange&) message;
+        m_currentMeta = notif.getMetaData();
+        int sampleRate = m_currentMeta.m_sampleRate;
 
         if (sampleRate != m_sampleRate)
         {
-            qDebug("RemoteInput::handleMessage: RemoteInputUDPHandler::MsgReportSampleRateChange: %d", sampleRate);
+            qDebug("RemoteInput::handleMessage: RemoteInputUDPHandler::MsgReportMetaDataChange: new sampleRate: %d", sampleRate);
             QMutexLocker mutexLocker(&m_mutex);
             m_sampleFifo.setSize(sampleRate * 8);
             m_sampleRate = sampleRate;
         }
 
+        m_currentMeta = m_remoteInputUDPHandler->getCurrentMeta();
+        QString getSettingsURL= QString("http://%1:%2/sdrangel/deviceset/%3/channel/%4/settings")
+            .arg(m_settings.m_apiAddress)
+            .arg(m_settings.m_apiPort)
+            .arg(m_currentMeta.m_deviceIndex)
+            .arg(m_currentMeta.m_channelIndex);
+
+        m_networkRequest.setUrl(QUrl(getSettingsURL));
+        m_networkManager->get(m_networkRequest);
+
         return true;
     }
     else if (MsgStartStop::match(message))
@@ -201,6 +220,27 @@ bool RemoteInput::handleMessage(const Message& message)
         applySettings(conf.getSettings(), conf.getForce());
         return true;
     }
+    else if (MsgConfigureRemoteChannel::match(message))
+    {
+        qDebug() << "RemoteInput::handleMessage:" << message.getIdentifier();
+        MsgConfigureRemoteChannel& conf = (MsgConfigureRemoteChannel&) message;
+        applyRemoteChannelSettings(conf.getSettings());
+        return true;
+    }
+    else if (MsgRequestFixedData::match(message))
+    {
+        qDebug() << "RemoteInput::handleMessage:" << message.getIdentifier();
+        QString reportURL;
+
+        reportURL = QString("http://%1:%2/sdrangel")
+            .arg(m_settings.m_apiAddress)
+            .arg(m_settings.m_apiPort);
+
+        m_networkRequest.setUrl(QUrl(reportURL));
+        m_networkManager->get(m_networkRequest);
+
+        return true;
+    }
 	else
 	{
 		return false;
@@ -272,13 +312,70 @@ void RemoteInput::applySettings(const RemoteInputSettings& settings, bool force)
     m_remoteAddress = remoteAddress;
 
     qDebug() << "RemoteInput::applySettings: "
-            << " m_dataAddress: " << m_settings.m_dataAddress
-            << " m_dataPort: " << m_settings.m_dataPort
-            << " m_multicastAddress: " << m_settings.m_multicastAddress
-            << " m_multicastJoin: " << m_settings.m_multicastJoin
-            << " m_apiAddress: " << m_settings.m_apiAddress
-            << " m_apiPort: " << m_settings.m_apiPort
-            << " m_remoteAddress: " << m_remoteAddress;
+        << " m_dataAddress: " << m_settings.m_dataAddress
+        << " m_dataPort: " << m_settings.m_dataPort
+        << " m_multicastAddress: " << m_settings.m_multicastAddress
+        << " m_multicastJoin: " << m_settings.m_multicastJoin
+        << " m_apiAddress: " << m_settings.m_apiAddress
+        << " m_apiPort: " << m_settings.m_apiPort
+        << " m_remoteAddress: " << m_remoteAddress;
+}
+
+void RemoteInput::applyRemoteChannelSettings(const RemoteChannelSettings& settings)
+{
+    SWGSDRangel::SWGChannelSettings *swgChannelSettings = new SWGSDRangel::SWGChannelSettings();;
+    swgChannelSettings->setOriginatorChannelIndex(0);
+    swgChannelSettings->setOriginatorDeviceSetIndex(m_deviceAPI->getDeviceSetIndex());
+    swgChannelSettings->setChannelType(new QString("RemoteSink"));
+    swgChannelSettings->setRemoteSinkSettings(new SWGSDRangel::SWGRemoteSinkSettings());
+    SWGSDRangel::SWGRemoteSinkSettings *swgRemoteSinkSettings = swgChannelSettings->getRemoteSinkSettings();
+    bool hasChanged = false;
+
+    if (settings.m_deviceCenterFrequency != m_remoteChannelSettings.m_deviceCenterFrequency)
+    {
+        swgRemoteSinkSettings->setDeviceCenterFrequency(settings.m_deviceCenterFrequency);
+        hasChanged = true;
+    }
+
+    if (settings.m_log2Decim != m_remoteChannelSettings.m_log2Decim)
+    {
+        swgRemoteSinkSettings->setLog2Decim(settings.m_log2Decim);
+        hasChanged = true;
+    }
+
+    if (settings.m_filterChainHash != m_remoteChannelSettings.m_filterChainHash)
+    {
+        swgRemoteSinkSettings->setFilterChainHash(settings.m_filterChainHash);
+        hasChanged = true;
+    }
+
+    if (hasChanged)
+    {
+        QString channelSettingsURL = QString("http://%1:%2/sdrangel/deviceset/%3/channel/%4/settings")
+                .arg(m_settings.m_apiAddress)
+                .arg(m_settings.m_apiPort)
+                .arg(m_currentMeta.m_deviceIndex)
+                .arg(m_currentMeta.m_channelIndex);
+        m_networkRequest.setUrl(QUrl(channelSettingsURL));
+        m_networkRequest.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
+
+        QBuffer *buffer = new QBuffer();
+        buffer->open((QBuffer::ReadWrite));
+        buffer->write(swgChannelSettings->asJson().toUtf8());
+        buffer->seek(0);
+
+        // Always use PATCH to avoid passing reverse API settings
+        QNetworkReply *reply = m_networkManager->sendCustomRequest(m_networkRequest, "PATCH", buffer);
+        buffer->setParent(reply);
+    }
+
+    m_remoteChannelSettings = settings;
+
+    qDebug() << "RemoteInput::applyRemoteChannelSettings: "
+        << " m_deviceCenterFrequency: " << m_remoteChannelSettings.m_deviceCenterFrequency
+        << " m_deviceSampleRate: " << m_remoteChannelSettings.m_deviceSampleRate
+        << " m_log2Decim: " << m_remoteChannelSettings.m_log2Decim
+        << " m_filterChainHash: " << m_remoteChannelSettings.m_filterChainHash;
 }
 
 int RemoteInput::webapiRunGet(
@@ -528,13 +625,92 @@ void RemoteInput::networkManagerFinished(QNetworkReply *reply)
                 << " error(" << (int) replyError
                 << "): " << replyError
                 << ": " << reply->errorString();
+
+        if (m_guiMessageQueue)
+        {
+            MsgReportRemoteAPIError *msg = MsgReportRemoteAPIError::create(reply->errorString());
+            m_guiMessageQueue->push(msg);
+        }
     }
     else
     {
         QString answer = reply->readAll();
         answer.chop(1); // remove last \n
         qDebug("RemoteInput::networkManagerFinished: reply:\n%s", answer.toStdString().c_str());
+
+        QByteArray jsonBytes(answer.toStdString().c_str());
+        QJsonParseError error;
+        QJsonDocument doc = QJsonDocument::fromJson(jsonBytes, &error);
+
+        if (error.error == QJsonParseError::NoError)
+        {
+            const QJsonObject&jsonObject = doc.object();
+
+            if (jsonObject.contains("RemoteSinkSettings")) {
+                analyzeRemoteChannelSettingsReply(jsonObject);
+            } else if (jsonObject.contains("version")) {
+                analyzeInstanceSummaryReply(jsonObject);
+            }
+        }
+        else
+        {
+            QString errorMsg = QString("Reply JSON error: ") + error.errorString() + QString(" at offset ") + QString::number(error.offset);
+            qInfo().noquote() << "RemoteInputGui::networkManagerFinished: " << errorMsg;
+
+            if (m_guiMessageQueue)
+            {
+                MsgReportRemoteAPIError *msg = MsgReportRemoteAPIError::create(errorMsg);
+                m_guiMessageQueue->push(msg);
+            }
+        }
     }
 
     reply->deleteLater();
 }
+
+void RemoteInput::analyzeInstanceSummaryReply(const QJsonObject& jsonObject)
+{
+    MsgReportRemoteFixedData::RemoteData msgRemoteFixedData;
+    msgRemoteFixedData.m_version = jsonObject["version"].toString();
+
+    if (jsonObject.contains("qtVersion")) {
+        msgRemoteFixedData.m_qtVersion = jsonObject["qtVersion"].toString();
+    }
+
+    if (jsonObject.contains("architecture")) {
+        msgRemoteFixedData.m_architecture = jsonObject["architecture"].toString();
+    }
+
+    if (jsonObject.contains("os")) {
+        msgRemoteFixedData.m_os = jsonObject["os"].toString();
+    }
+
+    if (jsonObject.contains("dspRxBits") && jsonObject.contains("dspTxBits"))
+    {
+        msgRemoteFixedData.m_rxBits = jsonObject["dspRxBits"].toInt();
+        msgRemoteFixedData.m_txBits = jsonObject["dspTxBits"].toInt();
+    }
+
+    if (m_guiMessageQueue)
+    {
+        MsgReportRemoteFixedData *msg = MsgReportRemoteFixedData::create(msgRemoteFixedData);
+        m_guiMessageQueue->push(msg);
+    }
+}
+
+void RemoteInput::analyzeRemoteChannelSettingsReply(const QJsonObject& jsonObject)
+{
+    QJsonObject settings = jsonObject["RemoteSinkSettings"].toObject();
+    m_remoteChannelSettings.m_deviceCenterFrequency = settings["deviceCenterFrequency"].toInt();
+    m_remoteChannelSettings.m_deviceSampleRate = settings["deviceSampleRate"].toInt();
+    m_remoteChannelSettings.m_log2Decim = settings["log2Decim"].toInt();
+    m_remoteChannelSettings.m_filterChainHash = settings["filterChainHash"].toInt();
+
+    if (m_guiMessageQueue) // forward to GUI if any
+    {
+        MsgConfigureRemoteChannel *msg = MsgConfigureRemoteChannel::create(m_remoteChannelSettings);
+        m_guiMessageQueue->push(msg);
+    }
+}
+
+

plugins/samplesource/remoteinput/remoteinput.h

@@ -28,6 +28,7 @@
 #include <QNetworkRequest>
 
 #include "dsp/devicesamplesource.h"
+#include "channel/remotedatablock.h"
 
 #include "remoteinputsettings.h"
 
@@ -39,6 +40,21 @@ class RemoteInputUDPHandler;
 class RemoteInput : public DeviceSampleSource {
     Q_OBJECT
 public:
+    struct RemoteChannelSettings
+    {
+        uint64_t m_deviceCenterFrequency;
+        uint32_t m_deviceSampleRate;
+        uint32_t m_log2Decim;
+        uint32_t m_filterChainHash;
+
+        RemoteChannelSettings() :
+            m_deviceCenterFrequency(0),
+            m_deviceSampleRate(1),
+            m_log2Decim(0),
+            m_filterChainHash(0)
+        {}
+    };
+
     class MsgConfigureRemoteInput : public Message {
         MESSAGE_CLASS_DECLARATION
 
@@ -125,6 +141,26 @@ public:
 		{ }
 	};
 
+	class MsgConfigureRemoteChannel : public Message {
+		MESSAGE_CLASS_DECLARATION
+
+	public:
+		const RemoteChannelSettings& getSettings() const { return m_settings; }
+
+		static MsgConfigureRemoteChannel* create(const RemoteChannelSettings& settings)
+		{
+			return new MsgConfigureRemoteChannel(settings);
+		}
+
+	protected:
+		RemoteChannelSettings m_settings;
+
+		MsgConfigureRemoteChannel(const RemoteChannelSettings& settings) :
+			Message(),
+			m_settings(settings)
+		{ }
+	};
+
 	class MsgReportRemoteInputStreamTiming : public Message {
 		MESSAGE_CLASS_DECLARATION
 
@@ -248,6 +284,68 @@ public:
         { }
     };
 
+    class MsgReportRemoteFixedData : public Message {
+        MESSAGE_CLASS_DECLARATION
+
+    public:
+        struct RemoteData
+        {
+            QString m_version;      //!< Remote SDRangel version
+            QString m_qtVersion;    //!< Remote Qt version used to build SDRangel
+            QString m_architecture; //!< Remote CPU architecture
+            QString m_os;           //!< Remote O/S
+            int     m_rxBits;       //!< Number of bits used for I or Q sample on Rx side
+            int     m_txBits;       //!< Number of bits used for I or Q sample on Tx side
+        };
+
+        const RemoteData& getData() const { return m_remoteData; }
+
+        static MsgReportRemoteFixedData* create(const RemoteData& remoteData) {
+            return new MsgReportRemoteFixedData(remoteData);
+        }
+
+    private:
+        RemoteData m_remoteData;
+
+        MsgReportRemoteFixedData(const RemoteData& remoteData) :
+            Message(),
+            m_remoteData(remoteData)
+        {}
+    };
+
+    class MsgReportRemoteAPIError : public Message {
+        MESSAGE_CLASS_DECLARATION
+
+    public:
+        const QString& getMessage() const { return m_message; }
+
+        static MsgReportRemoteAPIError* create(const QString& message) {
+            return new MsgReportRemoteAPIError(message);
+        }
+
+    private:
+        QString m_message;
+
+        MsgReportRemoteAPIError(const QString& message) :
+            Message(),
+            m_message(message)
+        {}
+    };
+
+    class MsgRequestFixedData : public Message {
+        MESSAGE_CLASS_DECLARATION
+
+    public:
+        static MsgRequestFixedData* create() {
+            return new MsgRequestFixedData();
+        }
+
+    private:
+        MsgRequestFixedData() :
+            Message()
+        {}
+    };
+
 	RemoteInput(DeviceAPI *deviceAPI);
 	virtual ~RemoteInput();
 	virtual void destroy();
@@ -307,7 +405,9 @@ private:
     int m_sampleRate;
 	QMutex m_mutex;
 	RemoteInputSettings m_settings;
+    RemoteChannelSettings m_remoteChannelSettings;
 	RemoteInputUDPHandler* m_remoteInputUDPHandler;
+    RemoteMetaDataFEC m_currentMeta;
     QString m_remoteAddress;
 	QString m_deviceDescription;
 	std::time_t m_startingTimeStamp;
@@ -315,9 +415,12 @@ private:
     QNetworkRequest m_networkRequest;
 
     void applySettings(const RemoteInputSettings& settings, bool force = false);
+    void applyRemoteChannelSettings(const RemoteChannelSettings& settings);
     void webapiFormatDeviceReport(SWGSDRangel::SWGDeviceReport& response);
     void webapiReverseSendSettings(QList<QString>& deviceSettingsKeys, const RemoteInputSettings& settings, bool force);
     void webapiReverseSendStartStop(bool start);
+    void analyzeRemoteChannelSettingsReply(const QJsonObject& jsonObject);
+    void analyzeInstanceSummaryReply(const QJsonObject& jsonObject);
 
 private slots:
     void networkManagerFinished(QNetworkReply *reply);

plugins/samplesource/remoteinput/remoteinputbuffer.cpp

@@ -93,8 +93,8 @@ void RemoteInputBuffer::setNbDecoderSlots(int nbDecoderSlots)
 
     m_decoderSlots = new DecoderSlot[m_nbDecoderSlots];
     m_frames = new BufferFrame[m_nbDecoderSlots];
-
     m_frameHead = -1;
+    initReadIndex();
 }
 
 void RemoteInputBuffer::setBufferLenSec(const RemoteMetaDataFEC& metaData)
@@ -415,6 +415,8 @@ void RemoteInputBuffer::printMeta(const QString& header, RemoteMetaDataFEC *meta
             << ":" << (int) metaData->m_sampleBits
             << ":" << (int) metaData->m_nbOriginalBlocks
             << ":" << (int) metaData->m_nbFECBlocks
+            << "|" << metaData->m_deviceIndex
+            << ":" << metaData->m_channelIndex
             << "|" << metaData->m_tv_sec
             << ":" << metaData->m_tv_usec
             << "|";

plugins/samplesource/remoteinput/remoteinputbuffer.h

@@ -18,11 +18,14 @@
 #ifndef PLUGINS_SAMPLESOURCE_REMOTEINPUT_REMOTEINPUTBUFFER_H_
 #define PLUGINS_SAMPLESOURCE_REMOTEINPUT_REMOTEINPUTBUFFER_H_
 
-#include <channel/remotedatablock.h>
 #include <QString>
 #include <QDebug>
+
 #include <cstdlib>
+
 #include "cm256cc/cm256.h"
+
+#include "channel/remotedatablock.h"
 #include "util/movingaverage.h"
 
 

plugins/samplesource/remoteinput/remoteinputgui.cpp

@@ -25,10 +25,6 @@
 #include <QTime>
 #include <QDateTime>
 #include <QString>
-#include <QNetworkAccessManager>
-#include <QNetworkReply>
-#include <QJsonParseError>
-#include <QJsonObject>
 
 #include "ui_remoteinputgui.h"
 #include "gui/colormapper.h"
@@ -37,6 +33,7 @@
 #include "gui/basicdevicesettingsdialog.h"
 #include "dsp/dspengine.h"
 #include "dsp/dspcommands.h"
+#include "dsp/hbfilterchainconverter.h"
 #include "mainwindow.h"
 #include "util/simpleserializer.h"
 #include "device/deviceapi.h"
@@ -76,6 +73,9 @@ RemoteInputGui::RemoteInputGui(DeviceUISet *deviceUISet, QWidget* parent) :
 	m_startingTimeStampms = 0;
 	ui->setupUi(this);
 
+    ui->remoteDeviceFrequency->setColorMapper(ColorMapper(ColorMapper::GrayGold));
+    ui->remoteDeviceFrequency->setValueRange(8, 0, 99999999);
+
     CRightClickEnabler *startStopRightClickEnabler = new CRightClickEnabler(ui->startStop);
     connect(startStopRightClickEnabler, SIGNAL(rightClick(const QPoint &)), this, SLOT(openDeviceSettingsDialog(const QPoint &)));
 
@@ -84,15 +84,13 @@ RemoteInputGui::RemoteInputGui(DeviceUISet *deviceUISet, QWidget* parent) :
 	connect(&m_statusTimer, SIGNAL(timeout()), this, SLOT(updateStatus()));
 	m_statusTimer.start(500);
     connect(&m_updateTimer, SIGNAL(timeout()), this, SLOT(updateHardware()));
+    connect(&m_remoteUpdateTimer, SIGNAL(timeout()), this, SLOT(updateRemote()));
 
     m_sampleSource = (RemoteInput*) m_deviceUISet->m_deviceAPI->getSampleSource();
 
 	connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()), Qt::QueuedConnection);
 	m_sampleSource->setMessageQueueToGUI(&m_inputMessageQueue);
 
-    m_networkManager = new QNetworkAccessManager();
-    connect(m_networkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(networkManagerFinished(QNetworkReply*)));
-
     m_eventsTime.start();
     displayEventCounts();
     displayEventTimer();
@@ -103,8 +101,6 @@ RemoteInputGui::RemoteInputGui(DeviceUISet *deviceUISet, QWidget* parent) :
 
 RemoteInputGui::~RemoteInputGui()
 {
-    disconnect(m_networkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(networkManagerFinished(QNetworkReply*)));
-    delete m_networkManager;
 	delete ui;
 }
 
@@ -160,6 +156,16 @@ bool RemoteInputGui::handleMessage(const Message& message)
         blockApplySettings(false);
         return true;
     }
+    else if (RemoteInput::MsgConfigureRemoteChannel::match(message))
+    {
+        qDebug("RemoteInputGui::handleMessage: RemoteInput::MsgConfigureRemoteChannel");
+        const RemoteInput::MsgConfigureRemoteChannel& cfg = (RemoteInput::MsgConfigureRemoteChannel&) message;
+        m_remoteChannelSettings = cfg.getSettings();
+        blockApplySettings(true);
+        displayRemoteSettings();
+        blockApplySettings(false);
+        return true;
+    }
     else if (RemoteInput::MsgReportRemoteInputAcquisition::match(message))
 	{
 		m_acquisition = ((RemoteInput::MsgReportRemoteInputAcquisition&)message).getAcquisition();
@@ -208,7 +214,20 @@ bool RemoteInputGui::handleMessage(const Message& message)
         blockApplySettings(true);
         ui->startStop->setChecked(notif.getStartStop());
         blockApplySettings(false);
-
+        return true;
+    }
+    else if (RemoteInput::MsgReportRemoteFixedData::match(message))
+    {
+        ui->apiAddressLabel->setStyleSheet("QLabel { background-color : green; }");
+        const RemoteInput::MsgReportRemoteFixedData& report = (const RemoteInput::MsgReportRemoteFixedData&) message;
+        displayRemoteFixedData(report.getData());
+        return true;
+    }
+    else if (RemoteInput::MsgReportRemoteAPIError::match(message))
+    {
+        ui->apiAddressLabel->setStyleSheet("QLabel { background:rgb(79,79,79); }");
+        const RemoteInput::MsgReportRemoteAPIError& report = (const RemoteInput::MsgReportRemoteAPIError&) message;
+        ui->statusText->setText(QString(report.getMessage()));
         return true;
     }
 	else
@@ -286,10 +305,81 @@ void RemoteInputGui::displaySettings()
 	blockApplySettings(false);
 }
 
+void RemoteInputGui::displayRemoteSettings()
+{
+    blockApplySettings(true);
+    ui->remoteDeviceFrequency->setValue(m_remoteChannelSettings.m_deviceCenterFrequency/1000);
+    ui->decimationFactor->setCurrentIndex(m_remoteChannelSettings.m_log2Decim);
+    applyDecimation();
+    blockApplySettings(false);
+}
+
+void RemoteInputGui::displayRemoteShift()
+{
+    int basebandSampleRate = m_streamSampleRate * (1<<m_remoteChannelSettings.m_log2Decim);
+    int shift = m_remoteShiftFrequencyFactor * basebandSampleRate;
+    QLocale loc;
+    ui->offsetFrequencyText->setText(tr("%1 Hz").arg(loc.toString(shift)));
+}
+
+void RemoteInputGui::applyDecimation()
+{
+    uint32_t maxHash = 1;
+
+    for (uint32_t i = 0; i < m_remoteChannelSettings.m_log2Decim; i++) {
+        maxHash *= 3;
+    }
+
+    ui->position->setMaximum(maxHash-1);
+    ui->position->setValue(m_remoteChannelSettings.m_filterChainHash);
+    m_remoteChannelSettings.m_filterChainHash = ui->position->value();
+    applyPosition();
+}
+
+void RemoteInputGui::applyPosition()
+{
+    ui->filterChainIndex->setText(tr("%1").arg(m_remoteChannelSettings.m_filterChainHash));
+    QString s;
+    m_remoteShiftFrequencyFactor = HBFilterChainConverter::convertToString(
+        m_remoteChannelSettings.m_log2Decim,
+        m_remoteChannelSettings.m_filterChainHash, s)
+    ;
+    ui->filterChainText->setText(s);
+
+    displayRemoteShift();
+    applyRemoteSettings();
+}
+
+void RemoteInputGui::applyRemoteSettings()
+{
+    if (!m_remoteUpdateTimer.isActive()) {
+        m_remoteUpdateTimer.start(100);
+    }
+}
+
 void RemoteInputGui::sendSettings()
 {
-    if(!m_updateTimer.isActive())
+    if (!m_updateTimer.isActive()) {
         m_updateTimer.start(100);
+    }
+}
+
+void RemoteInputGui::on_remoteDeviceFrequency_changed(quint64 value)
+{
+    m_remoteChannelSettings.m_deviceCenterFrequency = value * 1000;
+    applyRemoteSettings();
+}
+
+void RemoteInputGui::on_decimationFactor_currentIndexChanged(int index)
+{
+    m_remoteChannelSettings.m_log2Decim = index;
+    applyDecimation();
+}
+
+void RemoteInputGui::on_position_valueChanged(int value)
+{
+    m_remoteChannelSettings.m_filterChainHash = value;
+    applyPosition();
 }
 
 void RemoteInputGui::on_apiApplyButton_clicked(bool checked)
@@ -306,9 +396,9 @@ void RemoteInputGui::on_apiApplyButton_clicked(bool checked)
 
     sendSettings();
 
-    QString infoURL = QString("http://%1:%2/sdrangel").arg(m_settings.m_apiAddress).arg(m_settings.m_apiPort);
-    m_networkRequest.setUrl(QUrl(infoURL));
-    m_networkManager->get(m_networkRequest);
+    ui->apiAddressLabel->setStyleSheet("QLabel { background:rgb(79,79,79); }");
+    RemoteInput::MsgRequestFixedData *msg = RemoteInput::MsgRequestFixedData::create();
+    m_sampleSource->getInputMessageQueue()->push(msg);
 }
 
 void RemoteInputGui::on_dataApplyButton_clicked(bool checked)
@@ -325,9 +415,9 @@ void RemoteInputGui::on_apiAddress_editingFinished()
 {
     m_settings.m_apiAddress = ui->apiAddress->text();
 
-    QString infoURL = QString("http://%1:%2/sdrangel").arg(m_settings.m_apiAddress).arg(m_settings.m_apiPort);
-    m_networkRequest.setUrl(QUrl(infoURL));
-    m_networkManager->get(m_networkRequest);
+    ui->apiAddressLabel->setStyleSheet("QLabel { background:rgb(79,79,79); }");
+    RemoteInput::MsgRequestFixedData *msg = RemoteInput::MsgRequestFixedData::create();
+    m_sampleSource->getInputMessageQueue()->push(msg);
 
     sendSettings();
 }
@@ -382,9 +472,9 @@ void RemoteInputGui::on_apiPort_editingFinished()
     {
         m_settings.m_apiPort = udpApiPort;
 
-        QString infoURL = QString("http://%1:%2/sdrangel").arg(m_settings.m_apiAddress).arg(m_settings.m_apiPort);
-        m_networkRequest.setUrl(QUrl(infoURL));
-        m_networkManager->get(m_networkRequest);
+        ui->apiAddressLabel->setStyleSheet("QLabel { background:rgb(79,79,79); }");
+        RemoteInput::MsgRequestFixedData *msg = RemoteInput::MsgRequestFixedData::create();
+        m_sampleSource->getInputMessageQueue()->push(msg);
 
         sendSettings();
     }
@@ -438,6 +528,21 @@ void RemoteInputGui::displayEventTimer()
     ui->eventCountsTimeText->setText(s_time);
 }
 
+void RemoteInputGui::displayRemoteFixedData(const RemoteInput::MsgReportRemoteFixedData::RemoteData& remoteData)
+{
+    QString infoLine;
+
+    infoLine = remoteData.m_version;
+    infoLine += " Qt" + remoteData.m_qtVersion;
+    infoLine += " " + remoteData.m_architecture;
+    infoLine += " " + remoteData.m_os;
+    infoLine +=  QString(" %1/%2b").arg(remoteData.m_rxBits).arg(remoteData.m_txBits);
+
+    if (infoLine.size() > 0) {
+        ui->infoText->setText(infoLine);
+    }
+}
+
 void RemoteInputGui::updateWithAcquisition()
 {
 }
@@ -508,6 +613,18 @@ void RemoteInputGui::updateHardware()
     }
 }
 
+void RemoteInputGui::updateRemote()
+{
+    if (m_doApplySettings)
+    {
+        qDebug() << "RemoteInputGui::updateRemote";
+        RemoteInput::MsgConfigureRemoteChannel* message =
+                RemoteInput::MsgConfigureRemoteChannel::create(m_remoteChannelSettings);
+        m_sampleSource->getInputMessageQueue()->push(message);
+        m_remoteUpdateTimer.stop();
+    }
+}
+
 void RemoteInputGui::updateStatus()
 {
     if (m_sampleSource->isStreaming())
@@ -548,78 +665,6 @@ void RemoteInputGui::updateStatus()
     }
 }
 
-void RemoteInputGui::networkManagerFinished(QNetworkReply *reply)
-{
-    if (reply->error())
-    {
-        ui->apiAddressLabel->setStyleSheet("QLabel { background:rgb(79,79,79); }");
-        ui->statusText->setText(reply->errorString());
-    }
-    else
-    {
-        QString answer = reply->readAll();
-
-        try
-        {
-            QByteArray jsonBytes(answer.toStdString().c_str());
-            QJsonParseError error;
-            QJsonDocument doc = QJsonDocument::fromJson(jsonBytes, &error);
-
-            if (error.error == QJsonParseError::NoError)
-            {
-                ui->apiAddressLabel->setStyleSheet("QLabel { background-color : green; }");
-                ui->statusText->setText(QString("API OK"));
-                analyzeApiReply(doc.object());
-            }
-            else
-            {
-                ui->apiAddressLabel->setStyleSheet("QLabel { background:rgb(79,79,79); }");
-                QString errorMsg = QString("Reply JSON error: ") + error.errorString() + QString(" at offset ") + QString::number(error.offset);
-                ui->statusText->setText(QString("JSON error. See log"));
-                qInfo().noquote() << "RemoteInputGui::networkManagerFinished" << errorMsg;
-            }
-        }
-        catch (const std::exception& ex)
-        {
-            ui->apiAddressLabel->setStyleSheet("QLabel { background:rgb(79,79,79); }");
-            QString errorMsg = QString("Error parsing request: ") + ex.what();
-            ui->statusText->setText("Error parsing request. See log for details");
-            qInfo().noquote() << "RemoteInputGui::networkManagerFinished" << errorMsg;
-        }
-    }
-
-    reply->deleteLater();
-}
-
-void RemoteInputGui::analyzeApiReply(const QJsonObject& jsonObject)
-{
-    QString infoLine;
-
-    if (jsonObject.contains("version")) {
-        infoLine = jsonObject["version"].toString();
-    }
-
-    if (jsonObject.contains("qtVersion")) {
-        infoLine += " Qt" + jsonObject["qtVersion"].toString();
-    }
-
-    if (jsonObject.contains("architecture")) {
-        infoLine += " " + jsonObject["architecture"].toString();
-    }
-
-    if (jsonObject.contains("os")) {
-        infoLine += " " + jsonObject["os"].toString();
-    }
-
-    if (jsonObject.contains("dspRxBits") && jsonObject.contains("dspTxBits")) {
-        infoLine +=  QString(" %1/%2b").arg(jsonObject["dspRxBits"].toInt()).arg(jsonObject["dspTxBits"].toInt());
-    }
-
-    if (infoLine.size() > 0) {
-        ui->infoText->setText(infoLine);
-    }
-}
-
 void RemoteInputGui::openDeviceSettingsDialog(const QPoint& p)
 {
     BasicDeviceSettingsDialog dialog(this);

plugins/samplesource/remoteinput/remoteinputgui.h

@@ -21,7 +21,6 @@
 #include <QTimer>
 #include <QElapsedTimer>
 #include <QWidget>
-#include <QNetworkRequest>
 
 #include "device/devicegui.h"
 #include "util/messagequeue.h"
@@ -55,11 +54,14 @@ private:
 
 	DeviceUISet* m_deviceUISet;
     RemoteInputSettings m_settings;        //!< current settings
+	RemoteInput::RemoteChannelSettings m_remoteChannelSettings;
+	double m_remoteShiftFrequencyFactor;  //!< Remote channel frequency shift factor
 	RemoteInput* m_sampleSource;
     bool m_acquisition;
     int m_streamSampleRate;          //!< Sample rate of received stream
     quint64 m_streamCenterFrequency; //!< Center frequency of received stream
 	QTimer m_updateTimer;
+	QTimer m_remoteUpdateTimer;
 	QTimer m_statusTimer;
     int m_lastEngineState;
     MessageQueue m_inputMessageQueue;
@@ -98,23 +100,28 @@ private:
     QPalette m_paletteGreenText;
     QPalette m_paletteWhiteText;
 
-    QNetworkAccessManager *m_networkManager;
-    QNetworkRequest m_networkRequest;
-
     void blockApplySettings(bool block);
 	void displaySettings();
+	void displayRemoteSettings();
+	void displayRemoteShift();
 	void displayTime();
+	void displayRemoteFixedData(const RemoteInput::MsgReportRemoteFixedData::RemoteData& remoteData);
     void sendSettings();
 	void updateWithAcquisition();
 	void updateWithStreamTime();
 	void updateSampleRateAndFrequency();
 	void displayEventCounts();
     void displayEventTimer();
-    void analyzeApiReply(const QJsonObject& jsonObject);
+	void applyDecimation();
+	void applyPosition();
+	void applyRemoteSettings();
 	bool handleMessage(const Message& message);
 
 private slots:
     void handleInputMessages();
+	void on_remoteDeviceFrequency_changed(quint64 value);
+    void on_decimationFactor_currentIndexChanged(int index);
+    void on_position_valueChanged(int value);
 	void on_apiApplyButton_clicked(bool checked);
     void on_dataApplyButton_clicked(bool checked);
 	void on_dcOffset_toggled(bool checked);
@@ -128,8 +135,8 @@ private slots:
 	void on_startStop_toggled(bool checked);
     void on_eventCountsReset_clicked(bool checked);
     void updateHardware();
+	void updateRemote();
 	void updateStatus();
-	void networkManagerFinished(QNetworkReply *reply);
     void openDeviceSettingsDialog(const QPoint& p);
 };
 

plugins/samplesource/remoteinput/remoteinputgui.ui

@@ -7,13 +7,13 @@
     <x>0</x>
     <y>0</y>
     <width>400</width>
-    <height>312</height>
+    <height>480</height>
    </rect>
   </property>
   <property name="minimumSize">
    <size>
     <width>360</width>
-    <height>270</height>
+    <height>480</height>
    </size>
   </property>
   <property name="font">
@@ -27,7 +27,7 @@
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <property name="spacing">
-    <number>3</number>
+    <number>2</number>
    </property>
    <property name="leftMargin">
     <number>2</number>
@@ -162,6 +162,233 @@
      </property>
     </widget>
    </item>
+   <item>
+    <layout class="QHBoxLayout" name="remoteDevFreqLayout">
+     <property name="spacing">
+      <number>6</number>
+     </property>
+     <item>
+      <widget class="QLabel" name="remoteFrequencyLabel">
+       <property name="text">
+        <string>Rem dev Fc</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="ValueDial" name="remoteDeviceFrequency" native="true">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Maximum" vsizetype="Maximum">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="minimumSize">
+        <size>
+         <width>32</width>
+         <height>16</height>
+        </size>
+       </property>
+       <property name="font">
+        <font>
+         <family>Liberation Mono</family>
+         <pointsize>12</pointsize>
+         <weight>50</weight>
+         <bold>false</bold>
+        </font>
+       </property>
+       <property name="cursor">
+        <cursorShape>PointingHandCursor</cursorShape>
+       </property>
+       <property name="toolTip">
+        <string>Remote device center ferquency in kHz</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLabel" name="remoteDeviceFreqUnits">
+       <property name="text">
+        <string>kHz</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_9">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QVBoxLayout" name="remoteChDecimationLayer">
+     <property name="spacing">
+      <number>3</number>
+     </property>
+     <item>
+      <layout class="QHBoxLayout" name="decimationStageLayer">
+       <item>
+        <widget class="QLabel" name="decimationLabel">
+         <property name="text">
+          <string>Rem ch Dec</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QComboBox" name="decimationFactor">
+         <property name="maximumSize">
+          <size>
+           <width>55</width>
+           <height>16777215</height>
+          </size>
+         </property>
+         <property name="toolTip">
+          <string>Decimation factor</string>
+         </property>
+         <item>
+          <property name="text">
+           <string>1</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>2</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>4</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>8</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>16</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>32</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>64</string>
+          </property>
+         </item>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLabel" name="filterChainText">
+         <property name="minimumSize">
+          <size>
+           <width>50</width>
+           <height>0</height>
+          </size>
+         </property>
+         <property name="toolTip">
+          <string>Filter chain stages left to right (L: low, C: center, H: high) </string>
+         </property>
+         <property name="text">
+          <string>LLLLLL</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="horizontalSpacer_8">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>40</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item>
+        <widget class="QLabel" name="offsetFrequencyText">
+         <property name="minimumSize">
+          <size>
+           <width>85</width>
+           <height>0</height>
+          </size>
+         </property>
+         <property name="toolTip">
+          <string>Offset frequency with thousands separator (Hz)</string>
+         </property>
+         <property name="text">
+          <string>-9,999,999 Hz</string>
+         </property>
+         <property name="alignment">
+          <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="decimationShiftLayer">
+       <property name="rightMargin">
+        <number>10</number>
+       </property>
+       <item>
+        <widget class="QLabel" name="positionLabel">
+         <property name="text">
+          <string>Rem ch Pos</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QSlider" name="position">
+         <property name="toolTip">
+          <string>Center frequency position</string>
+         </property>
+         <property name="maximum">
+          <number>2</number>
+         </property>
+         <property name="pageStep">
+          <number>1</number>
+         </property>
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLabel" name="filterChainIndex">
+         <property name="minimumSize">
+          <size>
+           <width>24</width>
+           <height>0</height>
+          </size>
+         </property>
+         <property name="toolTip">
+          <string>Filter chain hash code</string>
+         </property>
+         <property name="text">
+          <string>000</string>
+         </property>
+         <property name="alignment">
+          <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </item>
    <item>
     <layout class="QHBoxLayout" name="gridLayout_corr">
      <item>
@@ -860,6 +1087,12 @@
    <extends>QToolButton</extends>
    <header>gui/buttonswitch.h</header>
   </customwidget>
+  <customwidget>
+   <class>ValueDial</class>
+   <extends>QWidget</extends>
+   <header>gui/valuedial.h</header>
+   <container>1</container>
+  </customwidget>
  </customwidgets>
  <resources>
   <include location="../../../sdrgui/resources/res.qrc"/>

plugins/samplesource/remoteinput/remoteinputplugin.cpp

@@ -31,7 +31,7 @@
 const PluginDescriptor RemoteInputPlugin::m_pluginDescriptor = {
     QStringLiteral("RemoteInput"),
 	QStringLiteral("Remote device input"),
-	QStringLiteral("6.17.5"),
+	QStringLiteral("6.17.6"),
 	QStringLiteral("(c) Edouard Griffiths, F4EXB"),
 	QStringLiteral("https://github.com/f4exb/sdrangel"),
 	true,

plugins/samplesource/remoteinput/remoteinputudphandler.cpp

@@ -26,7 +26,7 @@
 #include "remoteinputudphandler.h"
 #include "remoteinput.h"
 
-MESSAGE_CLASS_DEFINITION(RemoteInputUDPHandler::MsgReportSampleRateChange, Message)
+MESSAGE_CLASS_DEFINITION(RemoteInputUDPHandler::MsgReportMetaDataChange, Message)
 MESSAGE_CLASS_DEFINITION(RemoteInputUDPHandler::MsgUDPAddressAndPort, Message)
 
 RemoteInputUDPHandler::RemoteInputUDPHandler(SampleSinkFifo *sampleFifo, DeviceAPI *deviceAPI) :
@@ -55,7 +55,7 @@ RemoteInputUDPHandler::RemoteInputUDPHandler(SampleSinkFifo *sampleFifo, DeviceA
     m_throttlems(REMOTEINPUT_THROTTLE_MS),
     m_readLengthSamples(0),
     m_readLength(0),
-    m_converterBuffer(0),
+    m_converterBuffer(nullptr),
     m_converterBufferNbSamples(0),
     m_throttleToggle(false),
 	m_autoCorrBuffer(true)
@@ -149,7 +149,7 @@ void RemoteInputUDPHandler::stop()
 	if (m_dataSocket)
 	{
 		delete m_dataSocket;
-		m_dataSocket = 0;
+		m_dataSocket = nullptr;
 	}
 
 	m_centerFrequency = 0;
@@ -213,6 +213,18 @@ void RemoteInputUDPHandler::processData()
 {
     m_remoteInputBuffer.writeData(m_udpBuf);
     const RemoteMetaDataFEC& metaData =  m_remoteInputBuffer.getCurrentMeta();
+
+    if (!(m_currentMeta == metaData))
+    {
+        m_currentMeta = metaData;
+
+        if (m_messageQueueToInput)
+        {
+            MsgReportMetaDataChange *msg = MsgReportMetaDataChange::create(m_currentMeta);
+            m_messageQueueToInput->push(msg);
+        }
+    }
+
     bool change = false;
 
     m_tv_msec = m_remoteInputBuffer.getTVOutMSec();
@@ -227,13 +239,6 @@ void RemoteInputUDPHandler::processData()
     {
         disconnectTimer();
         adjustNbDecoderSlots(metaData);
-
-        if (m_messageQueueToInput)
-        {
-            MsgReportSampleRateChange *msg = MsgReportSampleRateChange::create(metaData.m_sampleRate);
-            m_messageQueueToInput->push(msg);
-        }
-
         m_samplerate = metaData.m_sampleRate;
         change = true;
     }
@@ -256,6 +261,8 @@ void RemoteInputUDPHandler::processData()
         }
 
         m_dataSocket->setSocketOption(QAbstractSocket::ReceiveBufferSizeSocketOption, getDataSocketBufferSize());
+        m_elapsedTimer.restart();
+        m_throttlems = 0;
         connectTimer();
     }
 }
@@ -310,7 +317,7 @@ void RemoteInputUDPHandler::tick()
     if (throttlems != m_throttlems)
     {
         m_throttlems = throttlems;
-        m_readLengthSamples = (m_remoteInputBuffer.getCurrentMeta().m_sampleRate * (m_throttlems+(m_throttleToggle ? 1 : 0))) / 1000;
+        m_readLengthSamples = (m_currentMeta.m_sampleRate * (m_throttlems+(m_throttleToggle ? 1 : 0))) / 1000;
         m_throttleToggle = !m_throttleToggle;
     }
 
@@ -319,20 +326,19 @@ void RemoteInputUDPHandler::tick()
         m_readLengthSamples += m_remoteInputBuffer.getRWBalanceCorrection();
         // Eliminate negative or excessively high values
         m_readLengthSamples = m_readLengthSamples < 0 ?
-            0 : m_readLengthSamples > (int) m_remoteInputBuffer.getCurrentMeta().m_sampleRate/5 ?
+            0 : m_readLengthSamples > (int) m_currentMeta.m_sampleRate/5 ?
                 m_remoteInputBuffer.getCurrentMeta().m_sampleRate/5 : m_readLengthSamples;
     }
 
-    const RemoteMetaDataFEC& metaData =  m_remoteInputBuffer.getCurrentMeta();
-    m_readLength = m_readLengthSamples * (metaData.m_sampleBytes & 0xF) * 2;
+    m_readLength = m_readLengthSamples * (m_currentMeta.m_sampleBytes & 0xF) * 2;
 
-    if (metaData.m_sampleBits == SDR_RX_SAMP_SZ) // no conversion
+    if (m_currentMeta.m_sampleBits == SDR_RX_SAMP_SZ) // no conversion
     {
         // read samples directly feeding the SampleFifo (no callback)
         m_sampleFifo->write(reinterpret_cast<quint8*>(m_remoteInputBuffer.readData(m_readLength)), m_readLength);
         m_samplesCount += m_readLengthSamples;
     }
-    else if ((metaData.m_sampleBits == 8) && (SDR_RX_SAMP_SZ == 16)) // 8 -> 16
+    else if ((m_currentMeta.m_sampleBits == 8) && (SDR_RX_SAMP_SZ == 16)) // 8 -> 16
     {
         if (m_readLengthSamples > (int) m_converterBufferNbSamples)
         {
@@ -349,7 +355,7 @@ void RemoteInputUDPHandler::tick()
             m_converterBuffer[is] += buf[2*is] * (1<<8);  // I -> LSB
         }
     }
-    else if ((metaData.m_sampleBits == 8) && (SDR_RX_SAMP_SZ == 24)) // 8 -> 24
+    else if ((m_currentMeta.m_sampleBits == 8) && (SDR_RX_SAMP_SZ == 24)) // 8 -> 24
     {
         if (m_readLengthSamples > (int) m_converterBufferNbSamples)
         {
@@ -367,7 +373,7 @@ void RemoteInputUDPHandler::tick()
 
         m_sampleFifo->write(reinterpret_cast<quint8*>(m_converterBuffer), m_readLengthSamples*sizeof(Sample));
     }
-    else if (metaData.m_sampleBits == 16) // 16 -> 24
+    else if (m_currentMeta.m_sampleBits == 16) // 16 -> 24
     {
         if (m_readLengthSamples > (int) m_converterBufferNbSamples)
         {
@@ -385,7 +391,7 @@ void RemoteInputUDPHandler::tick()
 
         m_sampleFifo->write(reinterpret_cast<quint8*>(m_converterBuffer), m_readLengthSamples*sizeof(Sample));
     }
-    else if (metaData.m_sampleBits == 24) // 24 -> 16
+    else if (m_currentMeta.m_sampleBits == 24) // 24 -> 16
     {
         if (m_readLengthSamples > (int) m_converterBufferNbSamples)
         {
@@ -406,59 +412,9 @@ void RemoteInputUDPHandler::tick()
     }
     else // invalid size
     {
-        qWarning("RemoteInputUDPHandler::tick: unexpected sample size in stream: %d bits", (int) metaData.m_sampleBits);
+        qWarning("RemoteInputUDPHandler::tick: unexpected sample size in stream: %d bits", (int) m_currentMeta.m_sampleBits);
     }
 
-    // if ((metaData.m_sampleBits == 16) && (SDR_RX_SAMP_SZ == 24)) // 16 -> 24 bits
-    // {
-    //     if (m_readLengthSamples > (int) m_converterBufferNbSamples)
-    //     {
-    //         if (m_converterBuffer) { delete[] m_converterBuffer; }
-    //         m_converterBuffer = new int32_t[m_readLengthSamples*2];
-    //     }
-
-    //     uint8_t *buf = m_remoteInputBuffer.readData(m_readLength);
-
-    //     for (int is = 0; is < m_readLengthSamples; is++)
-    //     {
-    //         m_converterBuffer[2*is] = ((int16_t*)buf)[2*is]; // I
-    //         m_converterBuffer[2*is]<<=8;
-    //         m_converterBuffer[2*is+1] = ((int16_t*)buf)[2*is+1]; // Q
-    //         m_converterBuffer[2*is+1]<<=8;
-    //     }
-
-    //     m_sampleFifo->write(reinterpret_cast<quint8*>(m_converterBuffer), m_readLengthSamples*sizeof(Sample));
-    // }
-    // else if ((metaData.m_sampleBits == 24) && (SDR_RX_SAMP_SZ == 16)) // 24 -> 16 bits
-    // {
-    //     if (m_readLengthSamples > (int) m_converterBufferNbSamples)
-    //     {
-    //         if (m_converterBuffer) { delete[] m_converterBuffer; }
-    //         m_converterBuffer = new int32_t[m_readLengthSamples];
-    //     }
-
-    //     uint8_t *buf = m_remoteInputBuffer.readData(m_readLength);
-
-    //     for (int is = 0; is < m_readLengthSamples; is++)
-    //     {
-    //         m_converterBuffer[is] =  ((int32_t *)buf)[2*is+1]>>8; // Q -> MSB
-    //         m_converterBuffer[is] <<=16;
-    //         m_converterBuffer[is] += ((int32_t *)buf)[2*is]>>8; // I -> LSB
-    //     }
-
-    //     m_sampleFifo->write(reinterpret_cast<quint8*>(m_converterBuffer), m_readLengthSamples*sizeof(Sample));
-    // }
-    // else if ((metaData.m_sampleBits == 16) || (metaData.m_sampleBits == 24)) // same sample size and valid size
-    // {
-    //     // read samples directly feeding the SampleFifo (no callback)
-    //     m_sampleFifo->write(reinterpret_cast<quint8*>(m_remoteInputBuffer.readData(m_readLength)), m_readLength);
-    //     m_samplesCount += m_readLengthSamples;
-    // }
-    // else // invalid size
-    // {
-    //     qWarning("RemoteInputUDPHandler::tick: unexpected sample size in stream: %d bits", (int) metaData.m_sampleBits);
-    // }
-
 	if (m_tickCount < m_rateDivider)
 	{
 		m_tickCount++;

plugins/samplesource/remoteinput/remoteinputudphandler.h

@@ -38,23 +38,23 @@ class RemoteInputUDPHandler : public QObject
 {
 	Q_OBJECT
 public:
-	class MsgReportSampleRateChange : public Message {
+	class MsgReportMetaDataChange : public Message {
 		MESSAGE_CLASS_DECLARATION
 
 	public:
-		int getSampleRate() const { return m_sampleRate; }
+		const RemoteMetaDataFEC& getMetaData() const { return m_metaData; }
 
-		static MsgReportSampleRateChange* create(int sampleRate)
+		static MsgReportMetaDataChange* create(const RemoteMetaDataFEC& metaData)
 		{
-			return new MsgReportSampleRateChange(sampleRate);
+			return new MsgReportMetaDataChange(metaData);
 		}
 
 	protected:
-		int m_sampleRate;
+		RemoteMetaDataFEC m_metaData;
 
-		MsgReportSampleRateChange(int sampleRate) :
+		MsgReportMetaDataChange(const RemoteMetaDataFEC& metaData) :
 			Message(),
-			m_sampleRate(sampleRate)
+			m_metaData(metaData)
 		{ }
 	};
 
@@ -74,6 +74,8 @@ public:
     uint64_t getTVmSec() const { return m_tv_msec; }
     int getMinNbBlocks() { return m_remoteInputBuffer.getMinNbBlocks(); }
     int getMaxNbRecovery() { return m_remoteInputBuffer.getMaxNbRecovery(); }
+	const RemoteMetaDataFEC& getCurrentMeta() const { return m_currentMeta; }
+
 public slots:
 	void dataReadyRead();
 
@@ -113,6 +115,7 @@ private:
 	bool m_running;
     uint32_t m_rateDivider;
 	RemoteInputBuffer m_remoteInputBuffer;
+	RemoteMetaDataFEC m_currentMeta;
 	QUdpSocket *m_dataSocket;
 	QHostAddress m_dataAddress;
 	QHostAddress m_remoteAddress;

sdrbase/channel/remotedatablock.h

@@ -38,16 +38,18 @@
 #pragma pack(push, 1)
 struct RemoteMetaDataFEC
 {
-    uint64_t m_centerFrequency;   //!<  8 center frequency in kHz
-    uint32_t m_sampleRate;        //!< 12 sample rate in Hz
-    uint8_t  m_sampleBytes;       //!< 13 4 LSB: number of bytes per sample (2 or 4)
-    uint8_t  m_sampleBits;        //!< 14 number of effective bits per sample (deprecated)
-    uint8_t  m_nbOriginalBlocks;  //!< 15 number of blocks with original (protected) data
-    uint8_t  m_nbFECBlocks;       //!< 16 number of blocks carrying FEC
+    uint64_t m_centerFrequency;       //!<  8 center frequency in kHz
+    uint32_t m_sampleRate;            //!< 12 sample rate in Hz
+    uint8_t  m_sampleBytes;           //!< 13 4 LSB: number of bytes per sample (2 or 4)
+    uint8_t  m_sampleBits;            //!< 14 number of effective bits per sample (deprecated)
+    uint8_t  m_nbOriginalBlocks;      //!< 15 number of blocks with original (protected) data
+    uint8_t  m_nbFECBlocks;           //!< 16 number of blocks carrying FEC
+    uint8_t  m_deviceIndex;           //!< 29 index of device set in instance
+    uint8_t  m_channelIndex;          //!< 30 index of channel in device set
 
-    uint32_t m_tv_sec;            //!< 20 seconds of timestamp at start time of super-frame processing
-    uint32_t m_tv_usec;           //!< 24 microseconds of timestamp at start time of super-frame processing
-    uint32_t m_crc32;             //!< 28 CRC32 of the above
+    uint32_t m_tv_sec;                //!< 34 seconds of timestamp at start time of super-frame processing
+    uint32_t m_tv_usec;               //!< 38 microseconds of timestamp at start time of super-frame processing
+    uint32_t m_crc32;                 //!< 42 CRC32 of the above
 
     bool operator==(const RemoteMetaDataFEC& rhs)
     {
@@ -68,6 +70,8 @@ struct RemoteMetaDataFEC
         m_sampleBits = 0;
         m_nbOriginalBlocks = 0;
         m_nbFECBlocks = 0;
+        m_deviceIndex = 0;
+        m_channelIndex = 0;
         m_tv_sec = 0;
         m_tv_usec = 0;
         m_crc32 = 0;

sdrbase/resources/webapi/doc/html2/index.html

@@ -9911,6 +9911,10 @@ margin-bottom: 20px;
       "type" : "integer",
       "description" : "Number of bytes in a transmited I or Q sample\n  * 1\n  * 2\n  * 4\n"
     },
+    "deviceCenterFrequency" : {
+      "type" : "integer",
+      "description" : "Device center frequency in kHz"
+    },
     "dataAddress" : {
       "type" : "string",
       "description" : "Receiving USB data address"
@@ -51630,7 +51634,7 @@ except ApiException as e:
           </div>
           <div id="generator">
             <div class="content">
-              Generated 2021-12-19T12:04:51.409+01:00
+              Generated 2021-12-24T20:37:17.750+01:00
             </div>
           </div>
       </div>

sdrbase/resources/webapi/doc/swagger/include/RemoteSink.yaml

@@ -11,6 +11,9 @@ RemoteSinkSettings:
           * 1
           * 2
           * 4
+    deviceCenterFrequency:
+      type: integer
+      description: Device center frequency in kHz
     dataAddress:
       description: "Receiving USB data address"
       type: string

swagger/sdrangel/api/swagger/include/RemoteSink.yaml

@@ -11,6 +11,9 @@ RemoteSinkSettings:
           * 1
           * 2
           * 4
+    deviceCenterFrequency:
+      type: integer
+      description: Device center frequency in kHz
     dataAddress:
       description: "Receiving USB data address"
       type: string

swagger/sdrangel/code/html2/index.html

@@ -9911,6 +9911,10 @@ margin-bottom: 20px;
       "type" : "integer",
       "description" : "Number of bytes in a transmited I or Q sample\n  * 1\n  * 2\n  * 4\n"
     },
+    "deviceCenterFrequency" : {
+      "type" : "integer",
+      "description" : "Device center frequency in kHz"
+    },
     "dataAddress" : {
       "type" : "string",
       "description" : "Receiving USB data address"
@@ -51630,7 +51634,7 @@ except ApiException as e:
           </div>
           <div id="generator">
             <div class="content">
-              Generated 2021-12-19T12:04:51.409+01:00
+              Generated 2021-12-24T20:37:17.750+01:00
             </div>
           </div>
       </div>

swagger/sdrangel/code/qt5/client/SWGRemoteSinkSettings.cpp

@@ -32,6 +32,8 @@ SWGRemoteSinkSettings::SWGRemoteSinkSettings() {
     m_nb_fec_blocks_isSet = false;
     nb_tx_bytes = 0;
     m_nb_tx_bytes_isSet = false;
+    device_center_frequency = 0;
+    m_device_center_frequency_isSet = false;
     data_address = nullptr;
     m_data_address_isSet = false;
     data_port = 0;
@@ -70,6 +72,8 @@ SWGRemoteSinkSettings::init() {
     m_nb_fec_blocks_isSet = false;
     nb_tx_bytes = 0;
     m_nb_tx_bytes_isSet = false;
+    device_center_frequency = 0;
+    m_device_center_frequency_isSet = false;
     data_address = new QString("");
     m_data_address_isSet = false;
     data_port = 0;
@@ -102,6 +106,7 @@ void
 SWGRemoteSinkSettings::cleanup() {
 
 
+
     if(data_address != nullptr) { 
         delete data_address;
     }
@@ -140,6 +145,8 @@ SWGRemoteSinkSettings::fromJsonObject(QJsonObject &pJson) {
     
     ::SWGSDRangel::setValue(&nb_tx_bytes, pJson["nbTxBytes"], "qint32", "");
     
+    ::SWGSDRangel::setValue(&device_center_frequency, pJson["deviceCenterFrequency"], "qint32", "");
+    
     ::SWGSDRangel::setValue(&data_address, pJson["dataAddress"], "QString", "QString");
     
     ::SWGSDRangel::setValue(&data_port, pJson["dataPort"], "qint32", "");
@@ -188,6 +195,9 @@ SWGRemoteSinkSettings::asJsonObject() {
     if(m_nb_tx_bytes_isSet){
         obj->insert("nbTxBytes", QJsonValue(nb_tx_bytes));
     }
+    if(m_device_center_frequency_isSet){
+        obj->insert("deviceCenterFrequency", QJsonValue(device_center_frequency));
+    }
     if(data_address != nullptr && *data_address != QString("")){
         toJsonValue(QString("dataAddress"), data_address, obj, QString("QString"));
     }
@@ -251,6 +261,16 @@ SWGRemoteSinkSettings::setNbTxBytes(qint32 nb_tx_bytes) {
     this->m_nb_tx_bytes_isSet = true;
 }
 
+qint32
+SWGRemoteSinkSettings::getDeviceCenterFrequency() {
+    return device_center_frequency;
+}
+void
+SWGRemoteSinkSettings::setDeviceCenterFrequency(qint32 device_center_frequency) {
+    this->device_center_frequency = device_center_frequency;
+    this->m_device_center_frequency_isSet = true;
+}
+
 QString*
 SWGRemoteSinkSettings::getDataAddress() {
     return data_address;
@@ -392,6 +412,9 @@ SWGRemoteSinkSettings::isSet(){
         if(m_nb_tx_bytes_isSet){
             isObjectUpdated = true; break;
         }
+        if(m_device_center_frequency_isSet){
+            isObjectUpdated = true; break;
+        }
         if(data_address && *data_address != QString("")){
             isObjectUpdated = true; break;
         }

swagger/sdrangel/code/qt5/client/SWGRemoteSinkSettings.h

@@ -49,6 +49,9 @@ public:
     qint32 getNbTxBytes();
     void setNbTxBytes(qint32 nb_tx_bytes);
 
+    qint32 getDeviceCenterFrequency();
+    void setDeviceCenterFrequency(qint32 device_center_frequency);
+
     QString* getDataAddress();
     void setDataAddress(QString* data_address);
 
@@ -98,6 +101,9 @@ private:
     qint32 nb_tx_bytes;
     bool m_nb_tx_bytes_isSet;
 
+    qint32 device_center_frequency;
+    bool m_device_center_frequency_isSet;
+
     QString* data_address;
     bool m_data_address_isSet;