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SDRdaemonFEC plugin: take buffering into account for timestamp calculation

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This commit is contained in:
f4exb
2016-07-24 12:53:39 +02:00
parent bbccea9432
commit 5e14ac9173
3 changed files with 23 additions and 2 deletions
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plugins/samplesource/sdrdaemonfec/sdrdaemonfecbuffer.cpp
+13
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@@ -46,6 +46,8 @@ SDRdaemonFECBuffer::SDRdaemonFECBuffer(uint32_t throttlems) :
m_currentMeta.init();
m_framesNbBytes = nbDecoderSlots * sizeof(BufferFrame);
m_wrDeltaEstimate = m_framesNbBytes / 2;
m_tvOut_sec = 0;
m_tvOut_usec = 0;
m_readNbBytes = 1;
m_paramsCM256.BlockBytes = sizeof(ProtectedBlock); // never changes
m_paramsCM256.OriginalCount = m_nbOriginalBlocks; // never changes
@@ -169,6 +171,17 @@ void SDRdaemonFECBuffer::checkSlotData(int slotIndex)
m_wrDeltaEstimate = pseudoWriteIndex - m_readIndex;
m_nbWrites++;
int rwDelayBytes = (m_wrDeltaEstimate > 0 ? m_wrDeltaEstimate : sizeof(BufferFrame) * nbDecoderSlots + m_wrDeltaEstimate);
int sampleRate = m_currentMeta.m_sampleRate;
if (sampleRate > 0)
{
int64_t ts = m_currentMeta.m_tv_sec * 1000000LL + m_currentMeta.m_tv_usec;
ts -= (rwDelayBytes * 1000000LL) / (sampleRate * sizeof(Sample));
m_tvOut_sec = ts / 1000000LL;
m_tvOut_usec = ts - (m_tvOut_sec * 1000000LL);
}
if (!m_decoderSlots[slotIndex].m_decoded)
{
qDebug() << "SDRdaemonFECBuffer::checkSlotData: incomplete frame:"