comparison data/fft/FFTDataServer.cpp @ 272:8bbc9e336475

* avoid trying to calculate fft from incomplete decoded audio file in spectrum

 {
 #ifdef DEBUG_FFT_SERVER
     std::cerr << "FFTDataServer(" << this << " [" << (void *)QThread::currentThreadId() << "])::FFTDataServer" << std::endl;
 #endif
 
+    //!!! end is not correct until model finished reading -- what to do???
+
     size_t start = m_model->getStartFrame();
     size_t end = m_model->getEndFrame();
 
     m_width = (end - start) / m_windowIncrement + 1;
     m_height = m_fftSize / 2 + 1; // DC == 0, Nyquist == fftsize/2

 void
 FFTDataServer::fillColumn(size_t x)
 {
     Profiler profiler("FFTDataServer::fillColumn", false);
 
+    if (!m_model->isReady()) {
+        std::cerr << "WARNING: FFTDataServer::fillColumn(" 
+                  << x << "): model not yet ready" << std::endl;
+        return;
+    }
+
     if (!m_fftInput) {
         std::cerr << "WARNING: FFTDataServer::fillColumn(" << x << "): "
                   << "input has already been completed and discarded?"
                   << std::endl;
         return;

 FFTDataServer::FillThread::run()
 {
     m_extent = 0;
     m_completion = 0;
     
+    while (!m_server.m_model->isReady() && !m_server.m_exiting) {
+        sleep(1);
+    }
+    if (m_server.m_exiting) return;
+
     size_t start = m_server.m_model->getStartFrame();
     size_t end = m_server.m_model->getEndFrame();
     size_t remainingEnd = end;
 
     int counter = 0;