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Tx support: implemented final interpolation stage in FileSink plugin

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This commit is contained in:
f4exb
2017-01-02 03:14:46 +01:00
parent d0f49291c5
commit fa0afb6c92
14 changed files with 841 additions and 41 deletions
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plugins/samplesink/filesink/filesinkthread.cpp
+90 -8
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@@ -31,8 +31,10 @@ FileSinkThread::FileSinkThread(std::ofstream *samplesStream, SampleSourceFifo* s
m_sampleFifo(sampleFifo),
m_samplesCount(0),
m_samplerate(0),
m_log2Interpolation(0),
m_throttlems(FILESINK_THROTTLE_MS),
m_throttleToggle(false)
m_throttleToggle(false),
m_buf(0)
{
assert(m_ofstream != 0);
}
@@ -42,6 +44,8 @@ FileSinkThread::~FileSinkThread()
if (m_running) {
stopWork();
}
if (m_buf) delete[] m_buf;
}
void FileSinkThread::startWork()
@@ -74,14 +78,18 @@ void FileSinkThread::stopWork()
void FileSinkThread::setSamplerate(int samplerate)
{
qDebug() << "FileSinkThread::setSamplerate:"
<< " new:" << samplerate
<< " old:" << m_samplerate;
if (samplerate != m_samplerate)
{
if (m_running) {
qDebug() << "FileSinkThread::setSamplerate:"
<< " new:" << samplerate
<< " old:" << m_samplerate;
bool wasRunning = false;
if (m_running)
{
stopWork();
wasRunning = true;
}
// resize sample FIFO
@@ -89,11 +97,52 @@ void FileSinkThread::setSamplerate(int samplerate)
m_sampleFifo->resize(samplerate); // 1s buffer
}
m_samplerate = samplerate;
// resize output buffer
if (m_buf) delete[] m_buf;
m_buf = new int16_t[samplerate*(1<<m_log2Interpolation)*2];
m_samplerate = samplerate;
m_samplesChunkSize = (m_samplerate * m_throttlems) / 1000;
if (wasRunning) {
startWork();
}
}
}
void FileSinkThread::setLog2Interpolation(int log2Interpolation)
{
if ((log2Interpolation < 0) || (log2Interpolation > 6))
{
return;
}
if (log2Interpolation != m_log2Interpolation)
{
qDebug() << "FileSinkThread::setLog2Interpolation:"
<< " new:" << log2Interpolation
<< " old:" << m_log2Interpolation;
bool wasRunning = false;
if (m_running)
{
stopWork();
wasRunning = true;
}
// resize output buffer
if (m_buf) delete[] m_buf;
m_buf = new int16_t[m_samplerate*(1<<log2Interpolation)*2];
m_log2Interpolation = log2Interpolation;
if (wasRunning) {
startWork();
}
}
}
void FileSinkThread::run()
{
int res;
@@ -138,7 +187,40 @@ void FileSinkThread::tick()
m_sampleFifo->readAdvance(readUntil, m_samplesChunkSize);
SampleVector::iterator beginRead = readUntil - m_samplesChunkSize;
m_ofstream->write(reinterpret_cast<char*>(&(*beginRead)), m_samplesChunkSize*sizeof(Sample));
m_samplesCount += m_samplesChunkSize;
if (m_log2Interpolation == 0)
{
m_ofstream->write(reinterpret_cast<char*>(&(*beginRead)), m_samplesChunkSize*sizeof(Sample));
}
else
{
switch (m_log2Interpolation)
{
case 1:
m_interpolators.interpolate2_cen(&beginRead, m_buf, m_samplesChunkSize*(1<<m_log2Interpolation)*2);
break;
case 2:
m_interpolators.interpolate4_cen(&beginRead, m_buf, m_samplesChunkSize*(1<<m_log2Interpolation)*2);
break;
case 3:
m_interpolators.interpolate8_cen(&beginRead, m_buf, m_samplesChunkSize*(1<<m_log2Interpolation)*2);
break;
case 4:
m_interpolators.interpolate16_cen(&beginRead, m_buf, m_samplesChunkSize*(1<<m_log2Interpolation)*2);
break;
case 5:
m_interpolators.interpolate32_cen(&beginRead, m_buf, m_samplesChunkSize*(1<<m_log2Interpolation)*2);
break;
case 6:
m_interpolators.interpolate64_cen(&beginRead, m_buf, m_samplesChunkSize*(1<<m_log2Interpolation)*2);
break;
default:
break;
}
m_ofstream->write(reinterpret_cast<char*>(m_buf), m_samplesChunkSize*(1<<m_log2Interpolation)*2*sizeof(int16_t));
}
}
}