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Support decoding with waterfall at 96,192 and 384kHz.

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This commit is contained in:
Hexameron
2014-08-12 19:35:26 +01:00
parent e17018f6e4
commit 34d2f8e504
2 changed files with 13 additions and 10 deletions
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plugins/samplesource/rtlsdr/rtlsdrthread.cpp
+8 -8
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@@ -140,7 +140,7 @@ void RTLSDRThread::callback(const quint8* buf, qint32 len)
{
qint16 xreal, yimag, phase;
SampleVector::iterator it = m_convertBuffer.begin();
int decimationFactor[] = {1, 2, 4, 8, 16, 0};
int decimationFactor[] = {1, 1, 1, 2, 4, 0};
if (++m_localdecimation < decimationFactor[m_decimation]) return;
m_localdecimation = 0;
@@ -148,15 +148,15 @@ void RTLSDRThread::callback(const quint8* buf, qint32 len)
switch(4 - m_decimation) {
case 0: // 1:1 = no decimation
// just rotation
phase = -1;
phase = -(1<<2);
for (int pos = 0; pos < len + 3; pos += 4) {
phase *= -1;
xreal = phase * (buf[pos+0] - 127);
yimag = phase * (buf[pos+1] - 127);
*it++ = Sample( xreal<<3,yimag<<3);
xreal = phase * (127 - buf[pos+3]);
yimag = phase * (buf[pos+2] - 127);
*it++ = Sample( xreal<<3,yimag<<3);
xreal = phase * (2 * buf[pos+0] - 255);
yimag = phase * (2 * buf[pos+1] - 255);
*it++ = Sample(xreal, yimag);
xreal = phase * (255 - 2 * buf[pos+3]);
yimag = phase * (2 * buf[pos+2] - 255);
*it++ = Sample(xreal, yimag);
}
break;
case 1: // 1:2