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Tx ph.1: fixed source sink initialization

This commit is contained in:
f4exb 2016-10-23 14:14:32 +02:00
parent c7bec82677
commit 4e446b9c7a
2 changed files with 18 additions and 3 deletions
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19
sdrbase/dsp/samplesourcefifo.cpp
View File

@ -20,17 +20,25 @@
SampleSourceFifo::SampleSourceFifo(uint32_t size, uint32_t samplesChunkSize) : SampleSourceFifo::SampleSourceFifo(uint32_t size, uint32_t samplesChunkSize) :
m_size(size), m_size(size),
m_samplesChunkSize(samplesChunkSize), m_samplesChunkSize(samplesChunkSize),
m_ir(0), m_init(false)
m_iw(size/2)
{ {
assert(samplesChunkSize <= m_size/4); assert(samplesChunkSize <= m_size/4);
m_data.resize(2*m_size); m_data.resize(2*m_size);
init();
} }
SampleSourceFifo::~SampleSourceFifo() SampleSourceFifo::~SampleSourceFifo()
{} {}
void SampleSourceFifo::init()
{
memset(&m_data[0], 0, sizeof(2*m_size*sizeof(Sample)));
m_ir = 0;
m_iw = m_samplesChunkSize*2;
m_init = true;
}
void SampleSourceFifo::read(SampleVector::iterator& beginRead, unsigned int nbSamples) void SampleSourceFifo::read(SampleVector::iterator& beginRead, unsigned int nbSamples)
{ {
QMutexLocker mutexLocker(&m_mutex); QMutexLocker mutexLocker(&m_mutex);
@ -42,7 +50,12 @@ void SampleSourceFifo::read(SampleVector::iterator& beginRead, unsigned int nbSa
int i_delta = m_iw - m_ir; int i_delta = m_iw - m_ir;
if (i_delta > 0) if (m_init)
{
emit dataWrite();
m_init = false;
}
else if (i_delta > 0)
{ {
if (i_delta < m_samplesChunkSize) if (i_delta < m_samplesChunkSize)
{ {

2
sdrbase/dsp/samplesourcefifo.h
View File

@ -33,6 +33,7 @@ public:
unsigned int getChunkSize() const { return m_samplesChunkSize; } unsigned int getChunkSize() const { return m_samplesChunkSize; }
void init();
/** begin read at current read point for the given length */ /** begin read at current read point for the given length */
void read(SampleVector::iterator& beginRead, unsigned int nbSamples); void read(SampleVector::iterator& beginRead, unsigned int nbSamples);
@ -47,6 +48,7 @@ private:
SampleVector m_data; SampleVector m_data;
uint32_t m_iw; uint32_t m_iw;
uint32_t m_ir; uint32_t m_ir;
bool m_init;
QMutex m_mutex; QMutex m_mutex;
signals: signals: