i am writing the application to send voice by lan network using...
i am having trouble because code doesn't work
below is the class ThreadInputAudio using thread to constantly send my voice
threadinputaudio.h
Qt Code: 
  1. #ifndef THREADINPUTAUDIO_H
  2. #define THREADINPUTAUDIO_H
  3.  
  4. #include <QThread>
  5. #include <QByteArray>
  6. #include <QAudioInput>
  7. #include <QTcpSocket>
  8. #include <QVariant>
  9.  
  10. class ThreadInputAudio : public QThread
  11. {
  12.     Q_OBJECT
  13. public:
  14.     ThreadInputAudio();
  15.     void stop();
  16.     QTcpSocket*		socket;
  17. protected:
  18.     void run();
  19. private:
  20.     bool stopped;
  21.     QByteArray m_buffer;
  22.     QAudioInput *m_audioInput;
  23.     QAudioFormat m_format;
  24.     QIODevice *m_input;
  25.     void stopRecording();
  26.  
  27. private slots:
  28.  
  29.     void readMore();
  30. };
  31.  
  32. #endif // THREADINPUTAUDIO_H
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threadinputaudio.cpp
Qt Code: 
  1. #include "threadinputaudio.h"
  2.  
  3. ThreadInputAudio::ThreadInputAudio()
  4.     :m_audioInput(0)
  5.     ,m_input(0)
  6. {
  7.     stopped = false;
  8.  
  9. }
  10. void ThreadInputAudio::run(){
  11.     m_format.setFrequency(8000);
  12.     m_format.setChannels(1);
  13.     m_format.setSampleSize(16);
  14.     m_format.setSampleType(QAudioFormat::SignedInt);
  15.     m_format.setByteOrder(QAudioFormat::LittleEndian);
  16.     m_format.setCodec("audio/pcm");
  17.     QAudioDeviceInfo info(QAudioDeviceInfo::defaultInputDevice());
  18.     if (!info.isFormatSupported(m_format)) {
  19.         qDebug() << "Default format not supported - trying to use nearest";
  20.         m_format = info.nearestFormat(m_format);
  21.     }
  22.     while (!stopped){
  23.         m_audioInput = new QAudioInput(m_format);
  24.         m_input = m_audioInput->start();
  25.         connect(m_input, SIGNAL(readyRead()), SLOT(readMore()));
  26.         QThread::sleep(500);
  27.         stopRecording();
  28.     }
  29.     stopped = false;
  30. }
  31. void ThreadInputAudio::stop(){
  32.     stopped = true;
  33. }
  34. void ThreadInputAudio::stopRecording(){
  35.     m_audioInput->stop();
  36.     delete m_audioInput;
  37. }
  38. void ThreadInputAudio::readMore(){
  39.     qDebug() << "start send voice";
  40.     if(!m_audioInput)
  41.         return;
  42.     qint64 len = m_audioInput->bytesReady();
  43.     qint64 l = m_input->read(m_buffer.data(), len);
  44.     if(l > 0) {
  45.         if(socket == NULL) return;
  46.         if(socket->state() != QAbstractSocket::ConnectedState ) return;
  47.         QString msg = "VOICE";
  48.         QVariant data = QVariant(m_buffer);
  49.         QByteArray block;
  50.         QDataStream out(&block, QIODevice::WriteOnly);
  51.         out.setVersion(QDataStream::Qt_4_2);
  52.         out << (quint32) 0;
  53.         out << msg;
  54.         out << data;
  55.         out.device()->seek(0);
  56.         out << (quint32)(block.size() - sizeof(quint32));
  57.  
  58.         socket->write(block);
  59.         socket->flush();
  60.  
  61.         qDebug() << "send voice ok";
  62.     }
  63. }
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i can't figure out why the method readmore() is never done
help me to decide whether the code on receiving the data is correct or not? how can i fix it.
Qt Code: 
  1. void MainWindow::onVoiceMessage(const QByteArray &data){
  2.     qDebug() << "nhan duoc am thanh";
  3.     QAudioFormat format;
  4.     inputFile->write(data.constData(),(qint64)data.size());
  5.      format.setFrequency(8000);
  6.      format.setChannels(1);
  7.      format.setSampleSize(8);
  8.      format.setCodec("audio/pcm");
  9.      format.setByteOrder(QAudioFormat::LittleEndian);
  10.      format.setSampleType(QAudioFormat::UnSignedInt);
  11.  
  12.      QAudioDeviceInfo info(QAudioDeviceInfo::defaultOutputDevice());
  13.      if (!info.isFormatSupported(format)) {
  14.          qDebug() <<"raw audio format not supported by backend, cannot play audio.";
  15.          return;
  16.      }
  17.  
  18.      audio = new QAudioOutput(format);
  19.      connect(audio,SIGNAL(stateChanged(QAudio::State)),SLOT(finishedPlaying(QAudio::State)));
  20.      audio->start(inputFile);
  21. }
  22.  
  23. void MainWindow::finishedPlaying(QAudio::State state)
  24.  {
  25.    if(state == QAudio::IdleState) {
  26.      audio->stop();
  27.      delete audio;
  28.    }
  29.  }
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