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Fixed data race condition in spectrum vis when the FFT size is changed

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This commit is contained in:
f4exb
2015-10-22 02:27:56 +02:00
parent 91cab6c623
commit 6a59ac7e10
2 changed files with 9 additions and 1 deletions
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sdrbase/dsp/spectrumvis.cpp
+6 -1
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@@ -21,7 +21,8 @@ SpectrumVis::SpectrumVis(GLSpectrum* glSpectrum) :
m_logPowerSpectrum(MAX_FFT_SIZE),
m_fftBufferFill(0),
m_needMoreSamples(false),
m_glSpectrum(glSpectrum)
m_glSpectrum(glSpectrum),
m_mutex(QMutex::Recursive)
{
setObjectName("SpectrumVis");
handleConfigure(1024, 0, FFTWindow::BlackmanHarris);
@@ -77,6 +78,8 @@ void SpectrumVis::feed(const SampleVector::const_iterator& cbegin, const SampleV
if (todo >= samplesNeeded)
{
QMutexLocker mutexLocker(&m_mutex);
// fill up the buffer
std::vector<Complex>::iterator it = m_fftBuffer.begin() + m_fftBufferFill;
@@ -174,6 +177,8 @@ bool SpectrumVis::handleMessage(const Message& message)
void SpectrumVis::handleConfigure(int fftSize, int overlapPercent, FFTWindow::Function window)
{
QMutexLocker mutexLocker(&m_mutex);
if (fftSize > MAX_FFT_SIZE)
{
fftSize = MAX_FFT_SIZE;