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SDRDaemonSink: 16/24 bit samples compatibility

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This commit is contained in:
f4exb 2018-09-10 08:46:52 +02:00
parent 404c73fb80
commit 6341bddef3
1 changed files with 26 additions and 7 deletions
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33
plugins/samplesink/sdrdaemonsink/udpsinkfec.cpp
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@ -141,20 +141,39 @@ void UDPSinkFEC::write(const SampleVector::iterator& begin, uint32_t sampleChunk
m_txBlockIndex = 1; // next Tx block with data
}
// TODO: memcpy is valid for 4 bytes samples only (16 bits) else conversion must take place to take only LSB assuming Tx is 16 bit only
if (m_sampleIndex + inRemainingSamples < samplesPerBlock) // there is still room in the current super block
{
memcpy((char *) &m_superBlock.protectedBlock.m_samples[m_sampleIndex],
(const char *) &(*it),
inRemainingSamples * sizeof(Sample));
if (SDR_RX_SAMP_SZ == SDR_TX_SAMP_SZ) // can do direct copy if sizes are equal (to 16 bits)
{
memcpy((char *) &m_superBlock.protectedBlock.m_samples[m_sampleIndex],
(const char *) &(*it),
inRemainingSamples * sizeof(Sample));
}
else // Samples are limited to 16 bits by the modulators
{
for (int is = 0; is < inRemainingSamples; is++) {
m_superBlock.protectedBlock.m_samples[m_sampleIndex+is] = *(it+is);
}
}
m_sampleIndex += inRemainingSamples;
it = end; // all input samples are consumed
}
else // complete super block and initiate the next if not end of frame
{
memcpy((char *) &m_superBlock.protectedBlock.m_samples[m_sampleIndex],
(const char *) &(*it),
(samplesPerBlock - m_sampleIndex) * sizeof(Sample));
if (SDR_RX_SAMP_SZ == SDR_TX_SAMP_SZ) // can do direct copy if sizes are equal (to 16 bits)
{
memcpy((char *) &m_superBlock.protectedBlock.m_samples[m_sampleIndex],
(const char *) &(*it),
(samplesPerBlock - m_sampleIndex) * sizeof(Sample));
}
else // Samples are limited to 16 bits by the modulators
{
for (int is = 0; is < samplesPerBlock - m_sampleIndex; is++) {
m_superBlock.protectedBlock.m_samples[m_sampleIndex+is] = *(it+is);
}
}
it += samplesPerBlock - m_sampleIndex;
m_sampleIndex = 0;