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UDPSink plugin: typedef for UDP block buffer
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@ -166,6 +166,7 @@ bool UDPSinkGUI::deserialize(const QByteArray& data)
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ui->udpAddress->setText(strtmp);
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d.readS32(10, &s32tmp, 10);
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ui->volume->setValue(s32tmp);
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ui->volumeText->setText(tr("%1").arg(s32tmp/10.0, 0, 'f', 1));
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d.readS32(11, &s32tmp, 2500);
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ui->fmDeviation->setText(QString("%1").arg(s32tmp));
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@ -28,9 +28,9 @@ UDPSinkUDPHandler::UDPSinkUDPHandler() :
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m_dataConnected(false),
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m_udpReadBytes(0),
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m_writeIndex(0),
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m_readFrameIndex(m_nbUDPFrames/2),
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m_readFrameIndex(m_minNbUDPFrames/2),
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m_readIndex(0),
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m_rwDelta(m_nbUDPFrames/2),
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m_rwDelta(m_minNbUDPFrames/2),
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m_d(0),
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m_feedbackMessageQueue(0)
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{
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@ -102,7 +102,7 @@ void UDPSinkUDPHandler::moveData()
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{
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memcpy(m_udpBuf[m_writeIndex], m_udpTmpBuf, m_udpBlockSize);
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if (m_writeIndex < m_nbUDPFrames - 1) {
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if (m_writeIndex < m_minNbUDPFrames - 1) {
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m_writeIndex++;
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} else {
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m_writeIndex = 0;
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@ -131,14 +131,14 @@ void UDPSinkUDPHandler::advanceReadPointer(int nbBytes)
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{
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m_readIndex = 0;
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if (m_readFrameIndex < m_nbUDPFrames - 1)
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if (m_readFrameIndex < m_minNbUDPFrames - 1)
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{
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m_readFrameIndex++;
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}
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else
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{
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m_rwDelta = m_writeIndex; // raw R/W delta estimate
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float d = (m_rwDelta - (m_nbUDPFrames/2))/(float) m_nbUDPFrames;
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float d = (m_rwDelta - (m_minNbUDPFrames/2))/(float) m_minNbUDPFrames;
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//qDebug("UDPSinkUDPHandler::advanceReadPointer: w: %02d d: %f", m_writeIndex, d);
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if ((d < -0.45) || (d > 0.45))
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@ -182,8 +182,8 @@ void UDPSinkUDPHandler::configureUDPLink(const QString& address, quint16 port)
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void UDPSinkUDPHandler::resetReadIndex()
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{
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m_readFrameIndex = (m_writeIndex + (m_nbUDPFrames/2)) % m_nbUDPFrames;
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m_rwDelta = m_nbUDPFrames/2;
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m_readFrameIndex = (m_writeIndex + (m_minNbUDPFrames/2)) % m_minNbUDPFrames;
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m_rwDelta = m_minNbUDPFrames/2;
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m_readIndex = 0;
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m_d = 0.0f;
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}
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@ -49,17 +49,19 @@ public:
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*/
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inline int32_t getBufferGauge() const
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{
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int32_t val = m_rwDelta - (m_nbUDPFrames/2);
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return (100*val) / m_nbUDPFrames;
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int32_t val = m_rwDelta - (m_minNbUDPFrames/2);
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return (100*val) / m_minNbUDPFrames;
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}
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static const int m_udpBlockSize = 512; // UDP block size in number of bytes
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static const int m_nbUDPFrames = 256; // number of frames of block size in the UDP buffer
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static const int m_minNbUDPFrames = 256; // number of frames of block size in the UDP buffer
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public slots:
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void dataReadyRead();
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private:
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typedef char (udpBlk_t)[m_udpBlockSize];
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void moveData();
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void advanceReadPointer(int nbBytes);
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@ -68,9 +70,9 @@ private:
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QHostAddress m_remoteAddress;
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quint16 m_dataPort;
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bool m_dataConnected;
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char m_udpTmpBuf[m_udpBlockSize];
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udpBlk_t m_udpTmpBuf;
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qint64 m_udpReadBytes;
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char m_udpBuf[m_nbUDPFrames][m_udpBlockSize];
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udpBlk_t m_udpBuf[m_minNbUDPFrames];
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int m_writeIndex;
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int m_readFrameIndex;
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int m_readIndex;
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