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SpectrumVis: release previous FFT engine allocation from FFT factory only if allocated once. Fixes issue #515

This commit is contained in:
f4exb 2020-05-01 04:57:25 +02:00
parent 42d6732147
commit cf2c04214b
1 changed files with 6 additions and 1 deletions
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7
sdrbase/dsp/spectrumvis.cpp
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@ -699,7 +699,12 @@ void SpectrumVis::applySettings(const GLSpectrumSettings& settings, bool force)
if ((fftSize != m_settings.m_fftSize) || force)
{
FFTFactory *fftFactory = DSPEngine::instance()->getFFTFactory();
fftFactory->releaseEngine(m_settings.m_fftSize, false, m_fftEngineSequence);
// release previous engine allocation if any
if (m_fft) {
fftFactory->releaseEngine(m_settings.m_fftSize, false, m_fftEngineSequence);
}
m_fftEngineSequence = fftFactory->getEngine(fftSize, false, &m_fft);
m_ofs = 20.0f * log10f(1.0f / fftSize);
m_powFFTDiv = fftSize * fftSize;