Fixedd buffer overflow in audio IO

src/io/audio.h

@@ -39,7 +39,7 @@ namespace io {
             outputParams.hostApiSpecificStreamInfo = NULL;
             outputParams.device = Pa_GetDefaultOutputDevice();
             outputParams.suggestedLatency = Pa_GetDeviceInfo(outputParams.device)->defaultLowOutputLatency;
-            PaError err = Pa_OpenStream(&stream, NULL, &outputParams, 48000.0f, 64, paClipOff, _callback, this);
+            PaError err = Pa_OpenStream(&stream, NULL, &outputParams, 48000.0f, _bufferSize, paClipOff, _callback, this);
             printf("%s\n", Pa_GetErrorText(err));
             err = Pa_StartStream(stream);
             printf("%s\n", Pa_GetErrorText(err));
@@ -67,13 +67,8 @@ namespace io {
             
             float vol = powf(_this->_volume, 2);
             for (int i = 0; i < frameCount; i++) {
-
-                
                 outbuf[(i * 2) + 0] = _this->buffer[i] * vol;
                 outbuf[(i * 2) + 1] = _this->buffer[i] * vol;
-
-
-
             }
             return 0;
         }

src/io/soapy.h

@@ -43,6 +43,10 @@ namespace io {
             
             devList = SoapySDR::Device::enumerate();
             txtDevList = "";
+            if (devList.size() == 0) {
+                txtDevList += '\0';
+                return;
+            }
             for (int i = 0; i < devList.size(); i++) {
                 txtDevList += devList[i]["label"];
                 txtDevList += '\0';

src/signal_path.cpp

@@ -29,7 +29,7 @@ void SignalPath::init(uint64_t sampleRate, int fftRate, int fftSize, dsp::stream
     ssbDemod.init(mainVFO.output, 6000, 3000, 22);
     
     audioResamp.init(&demod.output, 200000, 48000, 800);
-    audio.init(&audioResamp.output, 16);
+    audio.init(&audioResamp.output, 64);
 }
 
 void SignalPath::setSampleRate(float sampleRate) {