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Waterfall brightness/overlap.

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This commit is contained in:
John Greb
2014-06-10 12:24:52 +01:00
parent 243f3dbf69
commit bbe6d4505d
4 changed files with 13 additions and 14 deletions
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plugins/samplesource/rtlsdr/rtlsdrthread.cpp
+8 -7
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@@ -80,12 +80,12 @@ void RTLSDRThread::decimate2(SampleVector::iterator* it, const quint8* buf, qint
for (int pos = 0; pos < len + 7; pos += 8) {
xreal = buf[pos+0] - buf[pos+3];
yimag = buf[pos+1] + buf[pos+2] - 255;
Sample s( xreal << 6, yimag << 6 );
Sample s( xreal << 3, yimag << 3 );
**it = s;
(*it)++;
xreal = buf[pos+7] - buf[pos+4];
yimag = 255 - buf[pos+5] - buf[pos+6];
Sample t( xreal << 6, yimag << 6 );
Sample t( xreal << 3, yimag << 3 );
**it = t;
(*it)++;
}
@@ -96,7 +96,7 @@ void RTLSDRThread::decimate4(SampleVector::iterator* it, const quint8* buf, qint
for (int pos = 0; pos < len + 7; pos += 8) {
xreal = buf[pos+0] - buf[pos+3] + buf[pos+7] - buf[pos+4];
yimag = buf[pos+1] - buf[pos+5] + buf[pos+2] - buf[pos+6];
Sample s( xreal << 5, yimag << 5 );
Sample s( xreal << 3, yimag << 3 );
**it = s;
(*it)++;
}
@@ -112,7 +112,7 @@ void RTLSDRThread::decimate8(SampleVector::iterator* it, const quint8* buf, qint
xreal += buf[pos+0] - buf[pos+3] + buf[pos+7] - buf[pos+4];
yimag += buf[pos+1] - buf[pos+5] + buf[pos+2] - buf[pos+6];
Sample s( xreal << 4, yimag << 4 );
Sample s( xreal << 3, yimag << 3 );
**it = s;
(*it)++;
}
@@ -140,8 +140,9 @@ void RTLSDRThread::callback(const quint8* buf, qint32 len)
{
qint16 xreal, yimag, phase;
SampleVector::iterator it = m_convertBuffer.begin();
int decimationFactor[] = {16, 8, 4, 2, 1, 0};
if (++localdecimation < (1 << (4 - m_decimation))) return;
if (++localdecimation < decimationFactor[m_decimation]) return;
localdecimation = 0;
switch(m_decimation) {
@@ -152,10 +153,10 @@ void RTLSDRThread::callback(const quint8* buf, qint32 len)
phase *= -1;
xreal = phase * (buf[pos+0] - 127);
yimag = phase * (buf[pos+1] - 127);
*it++ = Sample( xreal<<7,yimag<<7);
*it++ = Sample( xreal<<3,yimag<<3);
xreal = phase * (127 - buf[pos+3]);
yimag = phase * (buf[pos+2] - 127);
*it++ = Sample( xreal<<7,yimag<<7);
*it++ = Sample( xreal<<3,yimag<<3);
}
break;
case 1: // 1:2