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SDRDaemon input: adaptation for 24 bit Rx DSP

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This commit is contained in:
f4exb 2018-01-24 08:49:18 +01:00
parent 4448b57b60
commit 3d77c9af9b
3 changed files with 33 additions and 5 deletions
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26
plugins/samplesource/sdrdaemonsource/sdrdaemonsourceudphandler.cpp
View File

@ -51,6 +51,8 @@ SDRdaemonSourceUDPHandler::SDRdaemonSourceUDPHandler(SampleSinkFifo *sampleFifo,
m_throttlems(SDRDAEMONSOURCE_THROTTLE_MS),
m_readLengthSamples(0),
m_readLength(0),
m_converterBuffer(0),
m_converterBufferNbSamples(0),
m_throttleToggle(false),
m_rateDivider(1000/SDRDAEMONSOURCE_THROTTLE_MS),
m_autoCorrBuffer(true)
@ -72,6 +74,7 @@ SDRdaemonSourceUDPHandler::~SDRdaemonSourceUDPHandler()
{
stop();
delete[] m_udpBuf;
if (m_converterBuffer) { delete[] m_converterBuffer; }
#ifdef USE_INTERNAL_TIMER
if (m_timer) {
delete m_timer;
@ -263,9 +266,32 @@ void SDRdaemonSourceUDPHandler::tick()
m_readLength = m_readLengthSamples * SDRdaemonSourceBuffer::m_iqSampleSize;
if (SDR_RX_SAMP_SZ == 16)
{
// read samples directly feeding the SampleFifo (no callback)
m_sampleFifo->write(reinterpret_cast<quint8*>(m_sdrDaemonBuffer.readData(m_readLength)), m_readLength);
m_samplesCount += m_readLengthSamples;
}
else if (SDR_RX_SAMP_SZ == 24)
{
if (m_readLengthSamples > m_converterBufferNbSamples)
{
if (m_converterBuffer) { delete[] m_converterBuffer; }
m_converterBuffer = new int32_t[m_readLengthSamples*2];
}
uint8_t *buf = m_sdrDaemonBuffer.readData(m_readLength);
for (unsigned int is = 0; is < m_readLengthSamples; is++)
{
m_converterBuffer[2*is] = ((int16_t*)buf)[2*is];
m_converterBuffer[2*is]<<=8;
m_converterBuffer[2*is+1] = ((int16_t*)buf)[2*is+1];
m_converterBuffer[2*is+1]<<=8;
}
m_sampleFifo->write(reinterpret_cast<quint8*>(m_converterBuffer), m_readLengthSamples*4*2);
}
if (m_tickCount < m_rateDivider)
{

2
plugins/samplesource/sdrdaemonsource/sdrdaemonsourceudphandler.h
View File

@ -77,6 +77,8 @@ private:
int m_throttlems;
uint32_t m_readLengthSamples;
uint32_t m_readLength;
int32_t *m_converterBuffer;
uint32_t m_converterBufferNbSamples;
bool m_throttleToggle;
uint32_t m_rateDivider;
bool m_autoCorrBuffer;

4
sdrbase/dsp/samplesinkfifo.cpp
View File

@ -1,5 +1,5 @@
///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
// written by Christian Daniel //
// //
// This program is free software; you can redistribute it and/or modify //
@ -74,7 +74,7 @@ uint SampleSinkFifo::write(const quint8* data, uint count)
uint remaining;
uint len;
const Sample* begin = (const Sample*)data;
count /= 4;
count /= sizeof(Sample);
total = MIN(count, m_size - m_fill);
if(total < count) {