#include <stdio.h>
#define MAXDEVICES 100
#include <string.h>
#include <portaudio.h>
#include <QDebug>
//------------------------------------------------------- pa_get_device_info
int pa_get_device_info (int n,
void *pa_device_name,
void *pa_device_hostapi,
double *pa_device_max_speed,
double *pa_device_min_speed,
int *pa_device_max_bytes,
int *pa_device_min_bytes,
int *pa_device_max_channels,
int *pa_device_min_channels )
{
(void) n ;
(void) pa_device_name;
(void) pa_device_hostapi;
(void) pa_device_max_speed;
(void) pa_device_min_speed;
(void) pa_device_max_bytes;
(void) pa_device_min_bytes;
(void) pa_device_max_channels;
(void) pa_device_min_channels;
const PaDeviceInfo *deviceInfo;
PaError pa_err;
PaStreamParameters inputParameters;
int i,j, speed_warning;
int minBytes, maxBytes;
double maxStandardSampleRate;
double minStandardSampleRate;
int minInputChannels;
int maxInputChannels;
// negative terminated list
static double standardSampleRates[] = {8000.0, 9600.0,
11025.0, 12000.0, 16000.0, 22050.0, 24000.0, 32000.0,
44100.0, 48000.0, 88200.0, 96000.0, 192000.0, -1};
// *******************************************************
*pa_device_max_speed=0;
*pa_device_min_speed=0;
*pa_device_max_bytes=0;
*pa_device_min_bytes=0;
*pa_device_max_channels=0;
*pa_device_min_channels=0;
minInputChannels=0;
if(n >= Pa_GetDeviceCount() ) return -1;
deviceInfo = Pa_GetDeviceInfo(n);
if (deviceInfo->maxInputChannels==0) return -1;
sprintf((char*)(pa_device_name),"%s",deviceInfo->name);
sprintf((char*)(pa_device_hostapi),"%s",
Pa_GetHostApiInfo( deviceInfo->hostApi )->name);
speed_warning=0;
// bypass bug in Juli@ ASIO driver:
// this driver hangs after a Pa_IsFormatSupported call
i = strncmp(deviceInfo->name, "ASIO 2.0 - ESI Juli@", 19);
if (i == 0) {
minStandardSampleRate=44100;
maxStandardSampleRate=192000;
minBytes=1;
maxBytes=4;
maxInputChannels= deviceInfo->maxInputChannels;
minInputChannels= 1;
goto end_pa_get_device_info;
}
// Investigate device capabilities.
// Check min and max samplerates with 16 bit data.
maxStandardSampleRate=0;
minStandardSampleRate=0;
inputParameters.device = n;
inputParameters.channelCount = deviceInfo->maxInputChannels;
inputParameters.sampleFormat = paInt16;
inputParameters.suggestedLatency = 0;
inputParameters.hostApiSpecificStreamInfo = NULL;
// ************************************************************************
//filter for portaudio Windows hostapi's with non experts.
//only allow ASIO or WASAPI or WDM-KS
i = strncmp(Pa_GetHostApiInfo(deviceInfo->hostApi)->name, "ASIO", 4);
if (i==0 ) goto end_filter_hostapi;
i = strncmp(Pa_GetHostApiInfo(deviceInfo->hostApi)->name,
"Windows WASAPI", 14);
if (i==0 ) goto end_filter_hostapi;
i = strncmp(Pa_GetHostApiInfo(deviceInfo->hostApi)->name,
"Windows WDM-KS", 14);
if (i==0 ) goto end_filter_hostapi;
speed_warning=1;
end_filter_hostapi:;
// ************************************************************************
i=0;
while(standardSampleRates[i] > 0 && minStandardSampleRate==0) {
pa_err=Pa_IsFormatSupported(&inputParameters, NULL,
standardSampleRates[i] );
if(pa_err == paDeviceUnavailable) return -1;
if(pa_err == paInvalidDevice) return -1;
if(pa_err == paFormatIsSupported ) {
minStandardSampleRate=standardSampleRates[i];
}
i++;
}
if(minStandardSampleRate == 0) return -1;
j=i;
while(standardSampleRates[i] > 0 ) i++;
i--;
while(i >= j && maxStandardSampleRate==0) {
pa_err=Pa_IsFormatSupported(&inputParameters, NULL,
standardSampleRates[i] );
if(pa_err == paDeviceUnavailable) return -1;
if(pa_err == paInvalidDevice) return -1;
if( pa_err == paFormatIsSupported ) {
maxStandardSampleRate=standardSampleRates[i];
}
i--;
}
// check if min SampleRate = max SampleRate
if(maxStandardSampleRate==0 && (minStandardSampleRate != 0)) {
maxStandardSampleRate= minStandardSampleRate;
}
// check min and max bytes
minBytes=2;
maxBytes=2;
inputParameters.sampleFormat = paUInt8;
pa_err=Pa_IsFormatSupported(&inputParameters, NULL,
maxStandardSampleRate );
if( pa_err == paFormatIsSupported ) {
minBytes=1;
}
inputParameters.sampleFormat = paInt32;
pa_err=Pa_IsFormatSupported(&inputParameters, NULL,
maxStandardSampleRate );
if( pa_err == paFormatIsSupported ) {
maxBytes=4;
}
// check min channel count
maxInputChannels= deviceInfo->maxInputChannels;
inputParameters.channelCount = 1;
inputParameters.sampleFormat = paInt16;
pa_err=paFormatIsSupported+32000;
while(pa_err != paFormatIsSupported &&
( inputParameters.channelCount < (maxInputChannels+1)) ) {
pa_err=Pa_IsFormatSupported(&inputParameters, NULL,
maxStandardSampleRate );
inputParameters.channelCount++;
}
if( pa_err == paFormatIsSupported ) {
minInputChannels=inputParameters.channelCount-1;
} else {
return -1;
}
end_pa_get_device_info:;
*pa_device_max_speed=maxStandardSampleRate;
*pa_device_min_speed=minStandardSampleRate;
*pa_device_max_bytes=maxBytes;
*pa_device_min_bytes=minBytes;
*pa_device_max_channels= maxInputChannels;
*pa_device_min_channels= minInputChannels;
return speed_warning;
}
void paInputDevice(int id, char* hostAPI_DeviceName, int* minChan,
int* maxChan, int* minSpeed, int* maxSpeed)
{
int i;
char pa_device_name[128];
char pa_device_hostapi[128];
double pa_device_max_speed;
double pa_device_min_speed;
int pa_device_max_bytes;
int pa_device_min_bytes;
int pa_device_max_channels;
int pa_device_min_channels;
char p2[50];
char *p,*p1;
static int iret, valid_dev_cnt;
iret=pa_get_device_info (id,
&pa_device_name,
&pa_device_hostapi,
&pa_device_max_speed,
&pa_device_min_speed,
&pa_device_max_bytes,
&pa_device_min_bytes,
&pa_device_max_channels,
&pa_device_min_channels);
if (iret >= 0 ) {
valid_dev_cnt++;
p1=(char*)"";
p=strstr(pa_device_hostapi,"MME");
if(p!=NULL) p1=(char*)"MME";
p=strstr(pa_device_hostapi,"Direct");
if(p!=NULL) p1=(char*)"DirectX";
p=strstr(pa_device_hostapi,"WASAPI");
if(p!=NULL) p1=(char*)"WASAPI";
p=strstr(pa_device_hostapi,"ASIO");
if(p!=NULL) p1=(char*)"ASIO";
p=strstr(pa_device_hostapi,"WDM-KS");
if(p!=NULL) p1=(char*)"WDM-KS";
sprintf(p2,"%-8s %-39s",p1,pa_device_name);
for(i=0; i<50; i++) {
hostAPI_DeviceName[i]=p2[i];
if(p2[i]==0) break;
}
*minChan=pa_device_min_channels;
*maxChan=pa_device_max_channels;
*minSpeed=(int)pa_device_min_speed;
*maxSpeed=(int)pa_device_max_speed;
} else {
for(i=0; i<50; i++) {
hostAPI_DeviceName[i]=0;
}
*minChan=0;
*maxChan=0;
*minSpeed=0;
*maxSpeed=0;
}
}
void getDev(int* numDevices0, char hostAPI_DeviceName[][50],
int minChan[], int maxChan[],
int minSpeed[], int maxSpeed[])
{
int i,id,numDevices;
int minch,maxch,minsp,maxsp;
char apidev[256];
numDevices=Pa_GetDeviceCount();
*numDevices0=numDevices;
for(id=0; id<numDevices; id++) {
paInputDevice(id,apidev,&minch,&maxch,&minsp,&maxsp);
for(i=0; i<50; i++) {
hostAPI_DeviceName[id][i]=apidev[i];
}
hostAPI_DeviceName[id][49]=0;
minChan[id]=minch;
maxChan[id]=maxch;
minSpeed[id]=minsp;
maxSpeed[id]=maxsp;
}
}