mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-26 17:58:43 -05:00
106 lines
3.9 KiB
C++
106 lines
3.9 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2017 Edouard Griffiths, F4EXB //
|
|
// //
|
|
// 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 PLUGINS_SAMPLESINK_REMOTEOUTPUT_UDPSINKFEC_H_
|
|
#define PLUGINS_SAMPLESINK_REMOTEOUTPUT_UDPSINKFEC_H_
|
|
|
|
#include <channel/remotedatablock.h>
|
|
#include <string.h>
|
|
#include <cstddef>
|
|
|
|
#include <QObject>
|
|
#include <QHostAddress>
|
|
#include <QString>
|
|
|
|
#include "dsp/dsptypes.h"
|
|
#include "util/CRC64.h"
|
|
|
|
class UDPSinkFECWorker;
|
|
|
|
class UDPSinkFEC : public QObject
|
|
{
|
|
Q_OBJECT
|
|
public:
|
|
static const uint32_t m_udpSize = 512; //!< Size of UDP block in number of bytes
|
|
static const uint32_t m_nbOriginalBlocks = 128; //!< Number of original blocks in a protected block sequence
|
|
|
|
/**
|
|
* Construct UDP sink
|
|
*/
|
|
UDPSinkFEC();
|
|
|
|
/** Destroy UDP sink */
|
|
~UDPSinkFEC();
|
|
|
|
void start();
|
|
void stop();
|
|
|
|
/**
|
|
* Write IQ samples
|
|
*/
|
|
void write(const SampleVector::iterator& begin, uint32_t sampleChunkSize);
|
|
|
|
/** Return the last error, or return an empty string if there is no error. */
|
|
std::string error()
|
|
{
|
|
std::string ret(m_error);
|
|
m_error.clear();
|
|
return ret;
|
|
}
|
|
|
|
/** Set sample rate given in S/s */
|
|
void setSampleRate(uint32_t sampleRate);
|
|
|
|
void setNbBlocksFEC(uint32_t nbBlocksFEC);
|
|
void setTxDelay(float txDelayRatio);
|
|
void setRemoteAddress(const QString& address, uint16_t port);
|
|
|
|
/** Return true if the stream is OK, return false if there is an error. */
|
|
operator bool() const
|
|
{
|
|
return m_error.empty();
|
|
}
|
|
|
|
private:
|
|
std::string m_error;
|
|
|
|
uint32_t m_sampleRate; //!< sample rate in Hz
|
|
uint32_t m_nbSamples; //!< total number of samples sent int the last frame
|
|
|
|
QHostAddress m_ownAddress;
|
|
|
|
CRC64 m_crc64;
|
|
uint8_t* m_bufMeta;
|
|
uint8_t* m_buf;
|
|
|
|
RemoteMetaDataFEC m_currentMetaFEC; //!< Meta data for current frame
|
|
uint32_t m_nbBlocksFEC; //!< Variable number of FEC blocks
|
|
float m_txDelayRatio; //!< Delay in ratio of nominal frame period
|
|
uint32_t m_txDelay; //!< Delay in microseconds (usleep) between each sending of an UDP datagram
|
|
RemoteSuperBlock m_txBlocks[4][256]; //!< UDP blocks to send with original data + FEC
|
|
RemoteSuperBlock m_superBlock; //!< current super block being built
|
|
int m_txBlockIndex; //!< Current index in blocks to transmit in the Tx row
|
|
int m_txBlocksIndex; //!< Current index of Tx blocks row
|
|
uint16_t m_frameCount; //!< transmission frame count
|
|
int m_sampleIndex; //!< Current sample index in protected block data
|
|
|
|
UDPSinkFECWorker *m_udpWorker;
|
|
QString m_remoteAddress;
|
|
uint16_t m_remotePort;
|
|
};
|
|
|
|
#endif /* PLUGINS_SAMPLESINK_REMOTEOUTPUT_UDPSINKFEC_H_ */
|