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Implement own FIFO in BasebandSampleSource. SampleSourceFIFO: remove useless chunk size completely and set initial fill to only half the FIFO size

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This commit is contained in:
f4exb 2016-12-23 14:29:42 +01:00
parent ce77f95a2c
commit e05822ba02
6 changed files with 10 additions and 7 deletions
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2
plugins/samplesink/filesink/filesinkthread.cpp
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@ -86,7 +86,7 @@ void FileSinkThread::setSamplerate(int samplerate)
// resize sample FIFO
if (m_sampleFifo) {
m_sampleFifo->resize(samplerate, samplerate/4); // 1s buffer with 250ms write chunk size
m_sampleFifo->resize(samplerate); // 1s buffer
}
m_samplerate = samplerate;

3
sdrbase/dsp/basebandsamplesource.cpp
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@ -18,7 +18,8 @@
#include "dsp/basebandsamplesource.h"
#include "util/message.h"
BasebandSampleSource::BasebandSampleSource()
BasebandSampleSource::BasebandSampleSource() :
m_sampleFifo(48000) // arbitrary, will be adjusted to match device sink FIFO size
{
connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
}

1
sdrbase/dsp/basebandsamplesource.h
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@ -57,6 +57,7 @@ public:
protected:
MessageQueue m_inputMessageQueue; //!< Queue for asynchronous inbound communication
MessageQueue m_outputMessageQueue; //!< Queue for asynchronous outbound communication
SampleSourceFifo m_sampleFifo; //!< Internal FIFO for multi-channel processing
protected slots:
void handleInputMessages();

2
sdrbase/dsp/dspdevicesinkengine.cpp
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@ -380,12 +380,14 @@ DSPDeviceSinkEngine::State DSPDeviceSinkEngine::gotoRunning()
for(BasebandSampleSources::const_iterator it = m_basebandSampleSources.begin(); it != m_basebandSampleSources.end(); it++)
{
qDebug() << "DSPDeviceSinkEngine::gotoRunning: starting " << (*it)->objectName().toStdString().c_str();
// TODO: equalize channel source FIFO size with device sink FIFO size
(*it)->start();
}
for (ThreadedBasebandSampleSources::const_iterator it = m_threadedBasebandSampleSources.begin(); it != m_threadedBasebandSampleSources.end(); ++it)
{
qDebug() << "DSPDeviceSinkEngine::gotoRunning: starting ThreadedSampleSource(" << (*it)->getSampleSourceObjectName().toStdString().c_str() << ")";
// TODO: equalize channel source FIFO size with device sink FIFO size
(*it)->start();
}

7
sdrbase/dsp/samplesourcefifo.cpp
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@ -29,10 +29,9 @@ SampleSourceFifo::SampleSourceFifo(uint32_t size) :
SampleSourceFifo::~SampleSourceFifo()
{}
void SampleSourceFifo::resize(uint32_t size, uint32_t samplesChunkSize)
void SampleSourceFifo::resize(uint32_t size)
{
qDebug("SampleSourceFifo::resize: %d, %d", size, samplesChunkSize);
assert(samplesChunkSize <= size/4);
qDebug("SampleSourceFifo::resize: %d", size);
m_size = size;
m_data.resize(2*m_size);
@ -60,7 +59,7 @@ void SampleSourceFifo::readAdvance(SampleVector::iterator& readUntil, unsigned i
if (m_init)
{
emit dataWrite(m_size);
emit dataWrite(m_size/2);
m_init = false;
}
else if (i_delta > 0)

2
sdrbase/dsp/samplesourcefifo.h
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@ -31,7 +31,7 @@ public:
SampleSourceFifo(uint32_t size);
~SampleSourceFifo();
void resize(uint32_t size, uint32_t samplesChunkSize);
void resize(uint32_t size);
void init();
/** advance read pointer for the given length and activate R/W signals */
void readAdvance(SampleVector::iterator& readUntil, unsigned int nbSamples);