mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-08 17:46:03 -05:00
141 lines
6.6 KiB
C++
141 lines
6.6 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2018 Edouard Griffiths, F4EXB. //
|
|
// //
|
|
// Remote sink channel (Rx) data blocks to read queue //
|
|
// //
|
|
// SDRangel can serve as a remote SDR front end that handles the interface //
|
|
// with a physical device and sends or receives the I/Q samples stream via UDP //
|
|
// to or from another SDRangel instance or any program implementing the same //
|
|
// protocol. The remote SDRangel is controlled via its 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 //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// This program is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License 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 CHANNEL_REMOTEDATAREADQUEUE_H_
|
|
#define CHANNEL_REMOTEDATAREADQUEUE_H_
|
|
|
|
#include <QQueue>
|
|
|
|
#include "export.h"
|
|
|
|
class RemoteDataFrame;
|
|
struct Sample;
|
|
|
|
class SDRBASE_API RemoteDataReadQueue
|
|
{
|
|
public:
|
|
RemoteDataReadQueue();
|
|
~RemoteDataReadQueue();
|
|
|
|
void push(RemoteDataFrame* dataFrame); //!< push frame on the queue
|
|
void readSample(Sample& s, bool isTx); //!< Read sample from queue
|
|
uint32_t length() const { return m_dataReadQueue.size(); } //!< Returns queue length
|
|
uint32_t size() const { return m_maxSize; } //!< Returns queue size (max length)
|
|
void setSize(uint32_t size); //!< Sets the queue size (max length)
|
|
uint32_t readSampleCount() const { return m_sampleCount; } //!< Returns the absolute number of samples read
|
|
|
|
static const uint32_t MinimumMaxSize;
|
|
|
|
private:
|
|
QQueue<RemoteDataFrame*> m_dataReadQueue;
|
|
RemoteDataFrame *m_dataFrame;
|
|
uint32_t m_maxSize;
|
|
uint32_t m_blockIndex;
|
|
uint32_t m_sampleIndex;
|
|
uint32_t m_sampleCount; //!< use a counter capped below 2^31 as it is going to be converted to an int in the web interface
|
|
|
|
RemoteDataFrame* pop(); //!< Pop frame from the queue
|
|
|
|
inline void convertDataToSample(Sample& s, uint32_t blockIndex, uint32_t sampleIndex, bool isTx)
|
|
{
|
|
int sampleSize = m_dataFrame->m_superBlocks[blockIndex].m_header.m_sampleBytes * 2; // I/Q sample size in data block
|
|
int32_t iconv, qconv;
|
|
|
|
if (sizeof(Sample) == sampleSize) // no conversion
|
|
{
|
|
s = *((Sample*) &(m_dataFrame->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*sampleSize]));
|
|
}
|
|
else if (isTx)
|
|
{
|
|
if (sampleSize == 2) // 8 -> 16 bits
|
|
{
|
|
int8_t *buf = (int8_t*) m_dataFrame->m_superBlocks[blockIndex].m_protectedBlock.buf;
|
|
iconv = buf[sampleIndex*sampleSize] * (1<<8);
|
|
qconv = buf[sampleIndex*sampleSize+1] * (1<<8);
|
|
s.setReal(iconv);
|
|
s.setImag(qconv);
|
|
}
|
|
else if (sampleSize == 4) // just convert types (always 16 bits wide)
|
|
{
|
|
iconv = *((int16_t*) &(m_dataFrame->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*sampleSize]));
|
|
qconv = *((int16_t*) &(m_dataFrame->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*sampleSize+2]));
|
|
s.setReal(iconv);
|
|
s.setImag(qconv);
|
|
}
|
|
else if (sampleSize == 8) // just convert types (always 16 bits wide)
|
|
{
|
|
iconv = *((int32_t*) &(m_dataFrame->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*sampleSize]));
|
|
qconv = *((int32_t*) &(m_dataFrame->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*sampleSize+4]));
|
|
s.setReal(iconv);
|
|
s.setImag(qconv);
|
|
}
|
|
else // invalid
|
|
{
|
|
s = Sample{0, 0};
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ((sampleSize == 2) && (sizeof(Sample) == 2)) // 8 -> 16 bits
|
|
{
|
|
int8_t *buf = (int8_t*) m_dataFrame->m_superBlocks[blockIndex].m_protectedBlock.buf;
|
|
iconv = buf[sampleIndex*sampleSize] * (1<<8);
|
|
qconv = buf[sampleIndex*sampleSize+1] * (1<<8);
|
|
s.setReal(iconv);
|
|
s.setImag(qconv);
|
|
}
|
|
else if ((sampleSize == 2) && (sizeof(Sample) == 4)) // 8 -> 24 bits
|
|
{
|
|
int8_t *buf = (int8_t*) m_dataFrame->m_superBlocks[blockIndex].m_protectedBlock.buf;
|
|
iconv = buf[sampleIndex*sampleSize] * (1<<16);
|
|
qconv = buf[sampleIndex*sampleSize+1] * (1<<16);
|
|
s.setReal(iconv);
|
|
s.setImag(qconv);
|
|
}
|
|
else if (sampleSize == 4) // 16 -> 24 bits
|
|
{
|
|
iconv = *((int16_t*) &(m_dataFrame->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*sampleSize])) * (1<<8);
|
|
qconv = *((int16_t*) &(m_dataFrame->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*sampleSize+2])) * (1<<8);
|
|
s.setReal(iconv);
|
|
s.setImag(qconv);
|
|
}
|
|
else if (sampleSize == 8) // 24 -> 16 bits
|
|
{
|
|
iconv = *((int32_t*) &(m_dataFrame->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*sampleSize])) / (1<<8);
|
|
qconv = *((int32_t*) &(m_dataFrame->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*sampleSize+4])) / (1<<8);
|
|
s.setReal(iconv);
|
|
s.setImag(qconv);
|
|
}
|
|
else // invalid
|
|
{
|
|
s = Sample{0, 0};
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
|
|
#endif /* CHANNEL_REMOTEDATAREADQUEUE_H_ */
|