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UDPSink plugin: UDP buffer dynamic allocation (still fixed value)

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This commit is contained in:
f4exb 2017-08-17 01:03:09 +02:00
parent 7ac1f9e8f1
commit a66193f7fd
3 changed files with 39 additions and 14 deletions
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12
plugins/channeltx/udpsink/udpsink.cpp
View File

@ -259,12 +259,12 @@ bool UDPSink::handleMessage(const Message& cmd)
m_sampleRateSum = 0.0;
m_sampleRateAvgCounter = 0;
}
else
{
qDebug("UDPSink::handleMessage: MsgSampleRateCorrection: corr: %+.6f new rate: %.0f",
cfg.getCorrectionFactor(),
m_actualInputSampleRate);
}
// else
// {
// qDebug("UDPSink::handleMessage: MsgSampleRateCorrection: corr: %+.6f new rate: %.0f",
// cfg.getCorrectionFactor(),
// m_actualInputSampleRate);
// }
m_settingsMutex.lock();
m_interpolatorDistanceRemain = 0;

32
plugins/channeltx/udpsink/udpsinkudphandler.cpp
View File

@ -27,6 +27,8 @@ UDPSinkUDPHandler::UDPSinkUDPHandler() :
m_dataPort(9999),
m_dataConnected(false),
m_udpReadBytes(0),
m_nbUDPFrames(m_minNbUDPFrames),
m_nbAllocatedUDPFrames(m_minNbUDPFrames),
m_writeIndex(0),
m_readFrameIndex(m_minNbUDPFrames/2),
m_readIndex(0),
@ -34,10 +36,12 @@ UDPSinkUDPHandler::UDPSinkUDPHandler() :
m_d(0),
m_feedbackMessageQueue(0)
{
m_udpBuf = new udpBlk_t[m_minNbUDPFrames];
}
UDPSinkUDPHandler::~UDPSinkUDPHandler()
{
delete[] m_udpBuf;
}
void UDPSinkUDPHandler::start()
@ -102,7 +106,7 @@ void UDPSinkUDPHandler::moveData()
{
memcpy(m_udpBuf[m_writeIndex], m_udpTmpBuf, m_udpBlockSize);
if (m_writeIndex < m_minNbUDPFrames - 1) {
if (m_writeIndex < m_nbUDPFrames - 1) {
m_writeIndex++;
} else {
m_writeIndex = 0;
@ -131,14 +135,14 @@ void UDPSinkUDPHandler::advanceReadPointer(int nbBytes)
{
m_readIndex = 0;
if (m_readFrameIndex < m_minNbUDPFrames - 1)
if (m_readFrameIndex < m_nbUDPFrames - 1)
{
m_readFrameIndex++;
}
else
{
m_rwDelta = m_writeIndex; // raw R/W delta estimate
float d = (m_rwDelta - (m_minNbUDPFrames/2))/(float) m_minNbUDPFrames;
float d = (m_rwDelta - (m_nbUDPFrames/2))/(float) m_nbUDPFrames;
//qDebug("UDPSinkUDPHandler::advanceReadPointer: w: %02d d: %f", m_writeIndex, d);
if ((d < -0.45) || (d > 0.45))
@ -182,8 +186,26 @@ void UDPSinkUDPHandler::configureUDPLink(const QString& address, quint16 port)
void UDPSinkUDPHandler::resetReadIndex()
{
m_readFrameIndex = (m_writeIndex + (m_minNbUDPFrames/2)) % m_minNbUDPFrames;
m_rwDelta = m_minNbUDPFrames/2;
m_readFrameIndex = (m_writeIndex + (m_nbUDPFrames/2)) % m_nbUDPFrames;
m_rwDelta = m_nbUDPFrames/2;
m_readIndex = 0;
m_d = 0.0f;
}
void UDPSinkUDPHandler::resizeBuffer(float sampleRate)
{
int halfNbFrames = std::max((sampleRate / 375.0), (m_minNbUDPFrames / 2.0));
qDebug("UDPSinkUDPHandler::resizeBuffer: nb_frames: %d", 2*halfNbFrames);
if (2*halfNbFrames > m_nbAllocatedUDPFrames)
{
delete[] m_udpBuf;
m_udpBuf = new udpBlk_t[2*halfNbFrames];
m_nbAllocatedUDPFrames = 2*halfNbFrames;
}
m_nbUDPFrames = 2*halfNbFrames;
m_writeIndex = 0;
resetReadIndex();
}

9
plugins/channeltx/udpsink/udpsinkudphandler.h
View File

@ -37,6 +37,7 @@ public:
void stop();
void configureUDPLink(const QString& address, quint16 port);
void resetReadIndex();
void resizeBuffer(float sampleRate);
void readSample(Real &t);
void readSample(Sample &s);
@ -49,8 +50,8 @@ public:
*/
inline int32_t getBufferGauge() const
{
int32_t val = m_rwDelta - (m_minNbUDPFrames/2);
return (100*val) / m_minNbUDPFrames;
int32_t val = m_rwDelta - (m_nbUDPFrames/2);
return (100*val) / m_nbUDPFrames;
}
static const int m_udpBlockSize = 512; // UDP block size in number of bytes
@ -72,7 +73,9 @@ private:
bool m_dataConnected;
udpBlk_t m_udpTmpBuf;
qint64 m_udpReadBytes;
udpBlk_t m_udpBuf[m_minNbUDPFrames];
udpBlk_t *m_udpBuf;
int m_nbUDPFrames;
int m_nbAllocatedUDPFrames;
int m_writeIndex;
int m_readFrameIndex;
int m_readIndex;