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WSJT-X/jtaudio.c
Joe Taylor 3731d5a0c3 1. General code cleanup. Most compiler warning messages have been silenced. 
2. "/A" added to list of optional callsign suffixes.
3. Improved algorithm for measuring error in soundcard sample rates.
4. Optional 5-sec shift of input data, to catch some clock errors.


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/trunk@274 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2006-09-06 18:09:05 +00:00

374 lines
9.6 KiB
C
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#include <stdio.h>
#include <portaudio.h>
#include <string.h>
void fivehz_();
void fivehztx_();
void addnoise_(short int *n);
// Definition of structure pointing to the audio data
typedef struct
{
double *Tsec;
double *tbuf;
int *iwrite;
int *ibuf;
int *TxOK;
int *ndebug;
int *ndsec;
int *Transmitting;
int *nwave;
int *nmode;
int *trperiod;
int nbuflen;
int nfs;
short *y1;
short *y2;
short *iwave;
}
paTestData;
typedef struct _SYSTEMTIME
{
short Year;
short Month;
short DayOfWeek;
short Day;
short Hour;
short Minute;
short Second;
short Millisecond;
} SYSTEMTIME;
#ifdef Win32
extern void __stdcall GetSystemTime(SYSTEMTIME *st);
#else
#include <sys/time.h>
#include <time.h>
void GetSystemTime(SYSTEMTIME *st){
struct timeval tmptimeofday;
struct tm tmptmtime;
gettimeofday(&tmptimeofday,NULL);
gmtime_r(&tmptimeofday.tv_sec,&tmptmtime);
st->Year = (short)tmptmtime.tm_year;
st->Month = (short)tmptmtime.tm_year;
st->DayOfWeek = (short)tmptmtime.tm_wday;
st->Day = (short)tmptmtime.tm_mday;
st->Hour = (short)tmptmtime.tm_hour;
st->Minute = (short)tmptmtime.tm_min;
st->Second = (short)tmptmtime.tm_sec;
st->Millisecond = (short)(tmptimeofday.tv_usec/1000);
}
#endif
// Input callback routine:
static int SoundIn( void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer,
const PaStreamCallbackTimeInfo* timeInfo,
PaStreamCallbackFlags statusFlags,
void *userData )
{
paTestData *data = (paTestData*)userData;
short *in = (short*)inputBuffer;
unsigned int i;
static int n0;
static int ia=0;
static int ib=0;
static int ic=0;
static int TxOKz=0;
static int ncall=0;
static int nsec0=0;
static double stime0=86400.0;
int nsec;
double stime;
SYSTEMTIME st;
// Get System time
GetSystemTime(&st);
nsec = (int) (st.Hour*3600.0 + st.Minute*60.0 + st.Second);
stime = nsec + st.Millisecond*0.001 + *data->ndsec*0.1;
*data->Tsec = stime;
nsec=(int)stime;
ncall++;
// NB: inputBufferAdcTime and currentTime do not work properly.
/*
if(nsec!=nsec0) {
printf("%f %f %f %f\n",stime,timeInfo->inputBufferAdcTime,
timeInfo->currentTime,timeInfo->outputBufferDacTime);
}
*/
// if((inputBuffer==NULL) & (ncall>2) & (stime>stime0)) {
if((statusFlags!=0) & (ncall>2) & (stime>stime0)) {
if(*data->ndebug)
printf("Status flags %d at Tsec = %7.1f s, DT = %7.1f\n",
statusFlags,stime,stime-stime0);
stime0=stime;
}
if((statusFlags&1)==0) {
//increment buffer pointers only if data available
ia=*data->iwrite;
ib=*data->ibuf;
ib++; //Increment ibuf
if(ib>1024) ib=1;
*data->ibuf=ib;
data->tbuf[ib-1]=stime;
for(i=0; i<framesPerBuffer; i++) {
data->y1[ia] = (*in++);
data->y2[ia] = (*in++);
ia++;
}
}
if(ia >= data->nbuflen) ia=0; //Wrap buffer pointer if necessary
*data->iwrite = ia; //Save buffer pointer
fivehz_(); //Call fortran routine
nsec0=nsec;
return 0;
}
// Output callback routine:
static int SoundOut( void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer,
const PaStreamCallbackTimeInfo* timeInfo,
PaStreamCallbackFlags statusFlags,
void *userData )
{
paTestData *data = (paTestData*)userData;
short *wptr = (short*)outputBuffer;
unsigned int i,n;
static short int n2;
static int n0;
static int ia=0;
static int ib=0;
static int ic=0;
static int TxOKz=0;
static double stime0=86400.0;
int nsec;
double stime;
SYSTEMTIME st;
// Get System time
GetSystemTime(&st);
nsec = (int) (st.Hour*3600.0 + st.Minute*60.0 + st.Second);
stime = nsec + st.Millisecond*0.001 + *data->ndsec*0.1;
*data->Tsec = stime;
nsec=(int)stime;
if(*data->TxOK && (!TxOKz)) {
n=nsec/(*data->trperiod);
// ic = (int)(stime - *data->trperiod*n) * data->nfs/framesPerBuffer;
// ic = framesPerBuffer*ic;
ic = (int)(stime - *data->trperiod*n) * data->nfs;
ic = ic % *data->nwave;
}
TxOKz=*data->TxOK;
*data->Transmitting=*data->TxOK;
if(*data->TxOK) {
for(i=0 ; i<framesPerBuffer; i++ ) {
n2=data->iwave[ic];
addnoise_(&n2);
*wptr++ = n2; //left
*wptr++ = n2; //right
ic++;
if(ic>=*data->nwave) {
if(*data->nmode==2) {
*data->TxOK=0;
ic--;
}
else
ic = ic % *data->nwave; //Wrap buffer pointer if necessary
}
}
} else {
memset((void*)outputBuffer, 0, 2*sizeof(short)*framesPerBuffer);
}
fivehztx_(); //Call fortran routine
return 0;
}
/*******************************************************************/
int jtaudio_(int *ndevin, int *ndevout, short y1[], short y2[],
int *nbuflen, int *iwrite, short iwave[],
int *nwave, int *nfsample, int *nsamperbuf,
int *TRPeriod, int *TxOK, int *ndebug,
int *Transmitting, double *Tsec, int *ngo, int *nmode,
double tbuf[], int *ibuf, int *ndsec)
{
paTestData data;
PaStream *instream;
PaStream *outstream;
PaStreamParameters inputParameters;
PaStreamParameters outputParameters;
// PaStreamInfo *streamInfo;
int nfs,ndin,ndout;
PaError err1,err2,err2a,err3,err3a;
double dnfs;
data.Tsec = Tsec;
data.tbuf = tbuf;
data.iwrite = iwrite;
data.ibuf = ibuf;
data.TxOK = TxOK;
data.ndebug = ndebug;
data.ndsec = ndsec;
data.Transmitting = Transmitting;
data.y1 = y1;
data.y2 = y2;
data.nbuflen = *nbuflen;
data.nmode = nmode;
data.nwave = nwave;
data.iwave = iwave;
data.nfs = *nfsample;
data.trperiod = TRPeriod;
nfs=*nfsample;
err1=Pa_Initialize(); // Initialize PortAudio
if(err1) {
printf("Error initializing PortAudio.\n");
printf("%s\n",Pa_GetErrorText(err1));
goto error;
}
ndin=*ndevin;
ndout=*ndevout;
dnfs=(double)nfs;
printf("Opening device %d for input, %d for output.\n",ndin,ndout);
inputParameters.device=*ndevin;
inputParameters.channelCount=2;
inputParameters.sampleFormat=paInt16;
inputParameters.suggestedLatency=1.0;
inputParameters.hostApiSpecificStreamInfo=NULL;
err2=Pa_OpenStream(
&instream, //address of stream
&inputParameters,
NULL,
dnfs, //Sample rate
2048, //Frames per buffer
paNoFlag,
SoundIn, //Callback routine
&data); //address of data structure
if(err2) {
printf("Error opening Audio stream for input.\n");
printf("%s\n",Pa_GetErrorText(err2));
goto error;
}
outputParameters.device=*ndevout;
outputParameters.channelCount=2;
outputParameters.sampleFormat=paInt16;
outputParameters.suggestedLatency=1.0;
outputParameters.hostApiSpecificStreamInfo=NULL;
err2a=Pa_OpenStream(
&outstream, //address of stream
NULL,
&outputParameters,
dnfs, //Sample rate
2048, //Frames per buffer
paNoFlag,
SoundOut, //Callback routine
&data); //address of data structure
if(err2a) {
printf("Error opening Audio stream for output.\n");
printf("%s\n",Pa_GetErrorText(err2a));
goto error;
}
err3=Pa_StartStream(instream); //Start input stream
if(err3) {
printf("Error starting input Audio stream\n");
printf("%s\n",Pa_GetErrorText(err3));
goto error;
}
err3a=Pa_StartStream(outstream); //Start output stream
if(err3a) {
printf("Error starting output Audio stream\n");
printf("%s\n",Pa_GetErrorText(err3a));
goto error;
}
printf("Audio streams running normally.\n******************************************************************\n");
while(Pa_IsStreamActive(instream)) {
if(*ngo==0) goto StopStream;
// printf("CPU: %f\n",Pa_GetStreamCpuLoad(stream));
Pa_Sleep(200);
}
StopStream:
Pa_AbortStream(instream); // Abort stream
Pa_CloseStream(instream); // Close stream, we're done.
Pa_AbortStream(outstream); // Abort stream
Pa_CloseStream(outstream); // Close stream, we're done.
Pa_Terminate();
return(0);
error:
printf("%d %d %f %d %d %d %d %d\n",ndin,ndout,dnfs,err1,
err2,err2a,err3,err3a);
Pa_Terminate();
return(1);
}
int padevsub_(int *numdev, int *ndefin, int *ndefout,
int nchin[], int nchout[])
{
int i;
int numDevices;
const PaDeviceInfo *pdi;
PaError err;
// PaHostApiInfo *hostapi;
Pa_Initialize();
/*
n=Pa_GetHostApiCount();
printf("HostAPI Type #Devices \n");
for(i=0; i<n; i++) {
hostapi=Pa_GetHostApiInfo(i);
printf(" %3d %2d %3d %s\n",i,hostapi->type,
hostapi->deviceCount,hostapi->name);
}
*/
// numDevices = Pa_CountDevices();
numDevices = Pa_GetDeviceCount();
*numdev=numDevices;
if( numDevices < 0 ) {
err = numDevices;
goto error;
}
printf("\nAudio Input Output Device Name\n");
printf("Device Channels Channels\n");
printf("------------------------------------------------------------------\n");
for( i=0; i<numDevices; i++ ) {
pdi = Pa_GetDeviceInfo( i );
// if(i == Pa_GetDefaultInputDeviceID()) *ndefin=i;
// if(i == Pa_GetDefaultOutputDeviceID()) *ndefout=i;
if(i == Pa_GetDefaultInputDevice()) *ndefin=i;
if(i == Pa_GetDefaultOutputDevice()) *ndefout=i;
nchin[i]=pdi->maxInputChannels;
nchout[i]=pdi->maxOutputChannels;
printf(" %2d %2d %2d %s\n",i,nchin[i],nchout[i],pdi->name);
}
Pa_Terminate();
return 0;
error:
Pa_Terminate();
return err;
}
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