void SoundInput::intervalNotify()
{
m_callbackData.monitoring = m_monitoring; // update monitoring
// status
qint64 ms = QDateTime::currentMSecsSinceEpoch();
ms=ms % 86400000;
int nsec = ms/1000; // Time according to this computer
int ntr = nsec % m_TRperiod;
int k=m_callbackData.kin; // get a copy of kin to mitigate the
// potential race condition with the
// callback handler when a buffer
// reset is requested below
// Reset buffer pointer and symbol number at start of minute
if(ntr < m_ntr0 or !m_monitoring or m_nsps!=m_nsps0) {
m_nstep0=0;
m_nsps0=m_nsps;
m_callbackData.bzero = true; // request callback to reset buffer pointer
}
if(m_monitoring) {
int kstep=m_nsps/2;
// m_step=k/kstep;
m_step=(k-1)/kstep;
if(m_step != m_nstep0) {
emit readyForFFT(k-1); //Signal to compute new FFTs
m_nstep0=m_step;
}
}
m_ntr0=ntr;
}
void SoundInput::intervalNotify()
{
m_callbackData.monitoring=m_monitoring;
qint64 ms = QDateTime::currentMSecsSinceEpoch();
ms=ms % 86400000;
int nsec = ms/1000; // Time according to this computer
int ntr = nsec % m_TRperiod;
static int k=0;
// qDebug() << "a" << ms << nsec;
// Reset buffer pointer and symbol number at start of minute
if(ntr < m_ntr0 or !m_monitoring or m_nsps!=m_nsps0) {
m_nstep0=0;
m_nsps0=m_nsps;
m_callbackData.bzero=true;
k=0;
}
// int k=m_callbackData.kin;
// How many new samples are available?
const qint32 bytesReady = audioInput->bytesReady();
// qDebug() << "b" << bytesReady;
Q_ASSERT(bytesReady >= 0);
Q_ASSERT(bytesReady % 2 == 0);
if (bytesReady == 0) {
return;
}
qint32 bytesRead;
bytesRead = stream->read((char*)&jt9com_.d2[k], bytesReady); // Get the new samples
k += bytesRead/2;
// qDebug() << "c" << bytesReady << bytesRead;
Q_ASSERT(bytesRead <= bytesReady);
if (bytesRead < 0) {
emit error(tr("audio stream QIODevice::read returned -1."));
return;
}
Q_ASSERT(bytesRead % 2 == 0);
if(m_monitoring) {
int kstep=m_nsps/2;
m_step=(k-1)/kstep;
if(m_step != m_nstep0) {
if(m_dataSinkBusy) {
m_nBusy++;
} else {
emit readyForFFT(k-1); //Signal to compute new FFTs
}
m_nstep0=m_step;
}
}
m_ntr0=ntr;
}
void SoundInThread::run() //SoundInThread::run()
{
quitExecution = false;
//---------------------------------------------------- Soundcard Setup
PaError paerr;
PaStreamParameters inParam;
PaStream *inStream;
paUserData udata;
udata.kin=0; //Buffer pointer
udata.bzero=false; //Flag to request reset of kin
inParam.device=m_nDevIn; //### Input Device Number ###
inParam.channelCount=1; //Number of analog channels
inParam.sampleFormat=paInt16; //Get i*2 from Portaudio
inParam.suggestedLatency=0.05;
inParam.hostApiSpecificStreamInfo=NULL;
paerr=Pa_IsFormatSupported(&inParam,NULL,48000.0);
if(paerr<0) {
emit error("PortAudio says requested soundcard format not supported.");
// return;
}
paerr=Pa_OpenStream(&inStream, //Input stream
&inParam, //Input parameters
NULL, //No output parameters
48000.0, //Sample rate
FRAMES_PER_BUFFER, //Frames per buffer
// paClipOff+paDitherOff, //No clipping or dithering
paClipOff, //No clipping
a2dCallback, //Input callbeck routine
&udata); //userdata
paerr=Pa_StartStream(inStream);
if(paerr<0) {
emit error("Failed to start audio input stream.");
return;
}
bool qe = quitExecution;
int n30z=99;
int k=0;
int nsec;
int n30;
int nBusy=0;
int nstep0=0;
//---------------------------------------------- Soundcard input loop
while (!qe) {
qe = quitExecution;
if (qe) break;
qint64 ms = QDateTime::currentMSecsSinceEpoch() % 86400000;
nsec = ms/1000; // Time according to this computer
n30 = nsec % 30;
// Reset buffer pointer and symbol number at start of minute
if(n30 < n30z or !m_monitoring) {
nstep0=0;
udata.bzero=true;
}
k=udata.kin;
if(m_monitoring) {
m_step=k/2048;
if(m_step != nstep0) {
if(m_dataSinkBusy) {
nBusy++;
} else {
// m_dataSinkBusy=true;
emit readyForFFT(k); //Signal to compute new FFTs
}
nstep0=m_step;
}
}
msleep(10);
n30z=n30;
}
Pa_StopStream(inStream);
Pa_CloseStream(inStream);
}
