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SDRdaemon: data block definitions

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f4exb 2018-08-20 08:41:54 +02:00
parent 39212e6317
commit 6691a926f1
2 changed files with 155 additions and 0 deletions
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100
sdrdaemon/channel/sdrdaemondatablock.h Normal file
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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2018 Edouard Griffiths, F4EXB. //
// //
// SDRdaemon sink channel (Rx) data block //
// //
// SDRdaemon is a detached SDR front end that handles the interface with a //
// physical device and sends or receives the I/Q samples stream to or from a //
// SDRangel instance via UDP. It is controlled via a Web REST API. //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef SDRDAEMON_CHANNEL_SDRDAEMONDATABLOCK_H_
#define SDRDAEMON_CHANNEL_SDRDAEMONDATABLOCK_H_
#include <stdint.h>
#include <string.h>
#include "dsp/dsptypes.h"
#define UDPSINKFEC_UDPSIZE 512
#define UDPSINKFEC_NBORIGINALBLOCKS 128
#define UDPSINKFEC_NBTXBLOCKS 8
namespace SDRDaemon {
#pragma pack(push, 1)
struct MetaDataFEC
{
uint32_t m_centerFrequency; //!< 4 center frequency in kHz
uint32_t m_sampleRate; //!< 8 sample rate in Hz
uint8_t m_sampleBytes; //!< 9 MSB(4): indicators, LSB(4) number of bytes per sample
uint8_t m_sampleBits; //!< 10 number of effective bits per sample
uint8_t m_nbOriginalBlocks; //!< 11 number of blocks with original (protected) data
uint8_t m_nbFECBlocks; //!< 12 number of blocks carrying FEC
uint32_t m_tv_sec; //!< 16 seconds of timestamp at start time of super-frame processing
uint32_t m_tv_usec; //!< 20 microseconds of timestamp at start time of super-frame processing
uint32_t m_crc32; //!< 24 CRC32 of the above
bool operator==(const MetaDataFEC& rhs)
{
return (memcmp((const void *) this, (const void *) &rhs, 12) == 0); // Only the 12 first bytes are relevant
}
void init()
{
memset((void *) this, 0, sizeof(MetaDataFEC));
m_nbFECBlocks = -1;
}
};
struct Header
{
uint16_t m_frameIndex;
uint8_t m_blockIndex;
uint8_t m_filler;
};
static const int samplesPerBlock = (UDPSINKFEC_UDPSIZE - sizeof(Header)) / sizeof(Sample);
struct ProtectedBlock
{
Sample m_samples[samplesPerBlock];
};
struct SuperBlock
{
Header m_header;
ProtectedBlock m_protectedBlock;
};
#pragma pack(pop)
struct TxControlBlock
{
bool m_processed;
uint16_t m_frameIndex;
int m_nbBlocksFEC;
int m_txDelay;
};
class DataBlock
{
SuperBlock m_superBlock;
TxControlBlock m_controlBlock;
};
} // namespace SDRDaemon
#endif /* SDRDAEMON_CHANNEL_SDRDAEMONDATABLOCK_H_ */

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sdrdaemon/channel/sdrdaemondataqueue.h Normal file
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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2018 Edouard Griffiths, F4EXB. //
// //
// SDRdaemon sink channel (Rx) data blocks queue //
// //
// SDRdaemon is a detached SDR front end that handles the interface with a //
// physical device and sends or receives the I/Q samples stream to or from a //
// SDRangel instance via UDP. It is controlled via a Web REST API. //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef SDRDAEMON_CHANNEL_SDRDAEMONDATAQUEUE_H_
#define SDRDAEMON_CHANNEL_SDRDAEMONDATAQUEUE_H_
#include <QObject>
class DataBlock;
namespace SDRDaemon {
class DataQueue : public QObject {
Q_OBJECT
public:
DataQueue(QObject* parent = NULL);
~DataQueue();
void push(DataBlock* message, bool emitSignal = true); //!< Push daa block onto queue
DataBlock* pop(); //!< Pop message from queue
int size(); //!< Returns queue size
void clear(); //!< Empty queue
signals:
void dataBlockEnqueued();
private:
QMutex m_lock;
QQueue<DataBlock*> m_queue;
};
} // namespace SDRDaemon
#endif /* SDRDAEMON_CHANNEL_SDRDAEMONDATAQUEUE_H_ */