Fixed missing initializations of QNetworkManager. Fixes #1689

plugins/channelrx/demodchirpchat/chirpchatdemod.cpp

@@ -77,6 +77,7 @@ ChirpChatDemod::ChirpChatDemod(DeviceAPI* deviceAPI) :
 
     m_deviceAPI->addChannelSink(this);
     m_deviceAPI->addChannelSinkAPI(this);
+    m_networkManager = new QNetworkAccessManager();
 
     QObject::connect(
         this,

plugins/samplesink/audiooutput/audiooutput.cpp

@@ -50,6 +50,7 @@ AudioOutput::AudioOutput(DeviceAPI *deviceAPI) :
     m_sampleRate = audioDeviceManager->getOutputSampleRate(m_audioDeviceIndex);
     m_settings.m_deviceName = AudioDeviceManager::m_defaultDeviceName;
     m_sampleSourceFifo.resize(SampleSourceFifo::getSizePolicy(48000));
+    m_networkManager = new QNetworkAccessManager();
 }
 
 AudioOutput::~AudioOutput()

plugins/samplesink/fileoutput/fileoutput.cpp

@@ -51,6 +51,7 @@ FileOutput::FileOutput(DeviceAPI *deviceAPI) :
 	m_masterTimer(deviceAPI->getMasterTimer())
 {
     m_deviceAPI->setNbSinkStreams(1);
+    m_networkManager = new QNetworkAccessManager();
 }
 
 FileOutput::~FileOutput()