bool QAudioInputPrivate::deviceReady()
{
    bytesAvailable = bytesReady();
#ifdef DEBUG_AUDIO
    QTime now(QTime::currentTime());
    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :deviceReady() INPUT";
#endif
    if(deviceState != QAudio::ActiveState && deviceState != QAudio::IdleState)
        return true;

    if(pullMode) {
        // reads some audio data and writes it to QIODevice
        read(0,0);
    } else {
        // emits readyRead() so user will call read() on QIODevice to get some audio data
        InputPrivate* a = qobject_cast<InputPrivate*>(audioSource);
        a->trigger();
    }

    if(intervalTime && (timeStamp.elapsed() + elapsedTimeOffset) > intervalTime) {
        emit notify();
        elapsedTimeOffset = timeStamp.elapsed() + elapsedTimeOffset - intervalTime;
        timeStamp.restart();
    }
    return true;
}
Exemplo n.º 2
0
void QAudioInputPrivate::feedback()
{
#ifdef DEBUG_AUDIO
    QTime now(QTime::currentTime());
    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :feedback() INPUT "<<this;
#endif
    bytesAvailable = bytesReady();

    if(!(deviceState==QAudio::StoppedState||deviceState==QAudio::SuspendedState))
        emit processMore();
}
Exemplo n.º 3
0
Arquivo: voterd.c Projeto: Chryel/PINT
void sendPipe(int pipe_num, int replica_num) {
  int r_index;
  int bytes_avail = bytesReady(replicas, rep_count, pipe_num);
  if (bytes_avail == 0) {
    return;
  }

  if (pipe_num == timer_stop_index) {  
    // reset the timer
    timer_started = false;
  }

  for (r_index = 0; r_index < rep_count; r_index++) {
    if (replica_num == r_index) {
      int retval;
      retval = buffToPipe(&(replicas[r_index].vot_pipes[pipe_num]), ext_pipes[pipe_num].fd_out, bytes_avail);
    } else {
      fakeToPipe(&(replicas[r_index].vot_pipes[pipe_num]), bytes_avail);
    }
  }
}
Exemplo n.º 4
0
bool QAudioInputPrivate::open()
{
#ifdef DEBUG_AUDIO
    QTime now(QTime::currentTime());
    qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()";
#endif
    clockStamp.restart();
    timeStamp.restart();
    elapsedTimeOffset = 0;

    int dir;
    int err=-1;
    int count=0;
    unsigned int freakuency=settings.frequency();

    QString dev = QString(QLatin1String(m_device.constData()));
    QList<QByteArray> devices = QAudioDeviceInfoInternal::availableDevices(QAudio::AudioInput);
    if(dev.compare(QLatin1String("default")) == 0) {
#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
        dev = QLatin1String(devices.first());
#else
        dev = QLatin1String("hw:0,0");
#endif
    } else {
#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
        dev = QLatin1String(m_device);
#else
        int idx = 0;
        char *name;

        QString shortName = QLatin1String(m_device.mid(m_device.indexOf('=',0)+1).constData());

        while(snd_card_get_name(idx,&name) == 0) {
            if(qstrncmp(shortName.toLocal8Bit().constData(),name,shortName.length()) == 0)
                break;
            idx++;
        }
        dev = QString(QLatin1String("hw:%1,0")).arg(idx);
#endif
    }

    // Step 1: try and open the device
    while((count < 5) && (err < 0)) {
        err=snd_pcm_open(&handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_CAPTURE,0);
        if(err < 0)
            count++;
    }
    if (( err < 0)||(handle == 0)) {
        errorState = QAudio::OpenError;
        deviceState = QAudio::StoppedState;
        emit stateChanged(deviceState);
        return false;
    }
    snd_pcm_nonblock( handle, 0 );

    // Step 2: Set the desired HW parameters.
    snd_pcm_hw_params_alloca( &hwparams );

    bool fatal = false;
    QString errMessage;
    unsigned int chunks = 8;

    err = snd_pcm_hw_params_any( handle, hwparams );
    if ( err < 0 ) {
        fatal = true;
        errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_any: err = %1").arg(err);
    }
    if ( !fatal ) {
        err = snd_pcm_hw_params_set_rate_resample( handle, hwparams, 1 );
        if ( err < 0 ) {
            fatal = true;
            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_rate_resample: err = %1").arg(err);
        }
    }
    if ( !fatal ) {
        err = snd_pcm_hw_params_set_access( handle, hwparams, access );
        if ( err < 0 ) {
            fatal = true;
            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_access: err = %1").arg(err);
        }
    }
    if ( !fatal ) {
        err = setFormat();
        if ( err < 0 ) {
            fatal = true;
            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_format: err = %1").arg(err);
        }
    }
    if ( !fatal ) {
        err = snd_pcm_hw_params_set_channels( handle, hwparams, (unsigned int)settings.channels() );
        if ( err < 0 ) {
            fatal = true;
            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_channels: err = %1").arg(err);
        }
    }
    if ( !fatal ) {
        err = snd_pcm_hw_params_set_rate_near( handle, hwparams, &freakuency, 0 );
        if ( err < 0 ) {
            fatal = true;
            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_rate_near: err = %1").arg(err);
        }
    }
    if ( !fatal ) {
        err = snd_pcm_hw_params_set_buffer_time_near(handle, hwparams, &buffer_time, &dir);
        if ( err < 0 ) {
            fatal = true;
            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_buffer_time_near: err = %1").arg(err);
        }
    }
    if ( !fatal ) {
        err = snd_pcm_hw_params_set_period_time_near(handle, hwparams, &period_time, &dir);
        if ( err < 0 ) {
            fatal = true;
            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_period_time_near: err = %1").arg(err);
        }
    }
    if ( !fatal ) {
        err = snd_pcm_hw_params_set_periods_near(handle, hwparams, &chunks, &dir);
        if ( err < 0 ) {
            fatal = true;
            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params_set_periods_near: err = %1").arg(err);
        }
    }
    if ( !fatal ) {
        err = snd_pcm_hw_params(handle, hwparams);
        if ( err < 0 ) {
            fatal = true;
            errMessage = QString::fromLatin1("QAudioInput: snd_pcm_hw_params: err = %1").arg(err);
        }
    }
    if( err < 0) {
        qWarning()<<errMessage;
        errorState = QAudio::OpenError;
        deviceState = QAudio::StoppedState;
        emit stateChanged(deviceState);
        return false;
    }
    snd_pcm_hw_params_get_buffer_size(hwparams,&buffer_frames);
    buffer_size = snd_pcm_frames_to_bytes(handle,buffer_frames);
    snd_pcm_hw_params_get_period_size(hwparams,&period_frames, &dir);
    period_size = snd_pcm_frames_to_bytes(handle,period_frames);
    snd_pcm_hw_params_get_buffer_time(hwparams,&buffer_time, &dir);
    snd_pcm_hw_params_get_period_time(hwparams,&period_time, &dir);

    // Step 3: Set the desired SW parameters.
    snd_pcm_sw_params_t *swparams;
    snd_pcm_sw_params_alloca(&swparams);
    snd_pcm_sw_params_current(handle, swparams);
    snd_pcm_sw_params_set_start_threshold(handle,swparams,period_frames);
    snd_pcm_sw_params_set_stop_threshold(handle,swparams,buffer_frames);
    snd_pcm_sw_params_set_avail_min(handle, swparams,period_frames);
    snd_pcm_sw_params(handle, swparams);

    // Step 4: Prepare audio
    if(audioBuffer == 0)
        audioBuffer = new char[buffer_size];
    snd_pcm_prepare( handle );
    snd_pcm_start(handle);

    // Step 5: Setup timer
    bytesAvailable = bytesReady();

    if(pullMode)
        connect(audioSource,SIGNAL(readyRead()),this,SLOT(userFeed()));

    // Step 6: Start audio processing
    chunks = buffer_size/period_size;
    timer->start(period_time*chunks/2000);

    errorState  = QAudio::NoError;
    deviceState = QAudio::ActiveState;

    totalTimeValue = 0;

    return true;
}
Exemplo n.º 5
0
    int frames = snd_pcm_avail_update(handle);
    if((int)frames > (int)buffer_frames)
        frames = buffer_frames;

    return snd_pcm_frames_to_bytes(handle, frames);
}

qint64 QAudioInputPrivate::read(char* data, qint64 len)
{
    Q_UNUSED(data)
    Q_UNUSED(len)
    // Read in some audio data and write it to QIODevice, pull mode
    if ( !handle )
        return 0;

    bytesAvailable = bytesReady();

    int count=0, err = 0;
    while(count < 5) {
        int chunks = bytesAvailable/period_size;
        int frames = chunks*period_frames;
        if(frames > (int)buffer_frames)
            frames = buffer_frames;
        int readFrames = snd_pcm_readi(handle, audioBuffer, frames);
        if (readFrames >= 0) {
            err = snd_pcm_frames_to_bytes(handle, readFrames);
#ifdef DEBUG_AUDIO
            qDebug()<<QString::fromLatin1("PULL: read in bytes = %1 (frames=%2)").arg(err).arg(readFrames).toLatin1().constData();
#endif
            break;
        } else if((readFrames == -EAGAIN) || (readFrames == -EINTR)) {
Exemplo n.º 6
0
Arquivo: voterd.c Projeto: Chryel/PINT
void checkSDC(int pipe_num) {
  int r_index;
  int bytes_avail = bytesReady(replicas, rep_count, pipe_num);
  if (bytes_avail == 0) {
    return;
  }

  switch (rep_type) {
    case SMR: 
      // Only one rep, so pretty much have to trust it
      sendPipe(pipe_num, 0);
      return;
    case DMR:
      // Can detect, and check what to do
      if (compareBuffs(&(replicas[0].vot_pipes[pipe_num]), &(replicas[1].vot_pipes[pipe_num]), bytes_avail) != 0) {
        printf("Voting disagreement: caught SDC in DMR but can't do anything about it.\n");
      }

      sendPipe(pipe_num, 0);
      return;
    case TMR:
      // Send the solution that at least two agree on
      // TODO: What if buff_count is off?
      for (r_index = 0; r_index < rep_count; r_index++) {
        if (compareBuffs(&(replicas[r_index].vot_pipes[pipe_num]), &(replicas[(r_index + 1) % rep_count].vot_pipes[pipe_num]), bytes_avail) == 0) {
          // If the third doesn't agree, it should be restarted.
          if (compareBuffs(&(replicas[r_index].vot_pipes[pipe_num]), &(replicas[(r_index + 2) % rep_count].vot_pipes[pipe_num]), bytes_avail) != 0) {  
            int restartee = (r_index + 2) % rep_count;
            
            debug_print("Caught SDC: %s : %d\n", controller_name, replicas[restartee].pid);
            if (DEBUG_PRINT) {
              // print all three or just two?

              // Create typed pipes for meta data
              struct typed_pipe print_pipesA[pipe_count];
              struct typed_pipe print_pipesB[pipe_count];
              convertVoteToTyped(replicas[r_index].vot_pipes, pipe_count, print_pipesA);
              convertVoteToTyped(replicas[(r_index + 2) % rep_count].vot_pipes, pipe_count, print_pipesB);
              
              // Copy the buffer over
              char *buffer_A = (char *)malloc(sizeof(char) * MAX_VOTE_PIPE_BUFF);
              char *buffer_B = (char *)malloc(sizeof(char) * MAX_VOTE_PIPE_BUFF);
              copyBuffer(&(replicas[r_index].vot_pipes[pipe_num]), buffer_A, bytes_avail);
              copyBuffer(&(replicas[(r_index + 2) % rep_count].vot_pipes[pipe_num]), buffer_B, bytes_avail);

              // print them out.
              printBuffer(&(print_pipesA[pipe_num]), buffer_A, bytes_avail);
              printBuffer(&(print_pipesB[pipe_num]), buffer_B, bytes_avail);

              free(buffer_A);
              free(buffer_B);
            }
            restart_prep(restartee, r_index);
          } else {
            // If all agree, send and be happy. Otherwise the send is done as part of the restart process
            sendPipe(pipe_num, r_index);
          }
          return;
        } 
      }

      printf("VoterD: TMR no two replicas agreed.\n");
  }
}