mirror of
https://github.com/saitohirga/WSJT-X.git
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0875a12cad
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/map65@2464 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
173 lines
5.3 KiB
C
173 lines
5.3 KiB
C
#include <portaudio.h>
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#include <stdio.h>
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#define MAX_LATENCY 20
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PaStream *in_stream;
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//------------------------------------------------------- pa_get_device_info
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int pa_get_device_info (int n,
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void *pa_device_name,
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void *pa_device_hostapi,
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double *pa_device_max_speed,
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double *pa_device_min_speed,
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int *pa_device_max_bytes,
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int *pa_device_min_bytes,
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int *pa_device_max_channels,
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int *pa_device_min_channels )
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{
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(void) n ;
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(void) pa_device_name;
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(void) pa_device_hostapi;
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(void) pa_device_max_speed;
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(void) pa_device_min_speed;
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(void) pa_device_max_bytes;
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(void) pa_device_min_bytes;
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(void) pa_device_max_channels;
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(void) pa_device_min_channels;
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const PaDeviceInfo *deviceInfo;
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PaError pa_err;
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PaStreamParameters inputParameters;
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int i,j, speed_warning;
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int minBytes, maxBytes;
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double maxStandardSampleRate;
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double minStandardSampleRate;
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int minInputChannels;
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int maxInputChannels;
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// negative terminated list
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static double standardSampleRates[] = {8000.0, 9600.0,
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11025.0, 12000.0, 16000.0, 22050.0, 24000.0, 32000.0,
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44100.0, 48000.0, 88200.0, 96000.0, 192000.0, -1};
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// *******************************************************
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*pa_device_max_speed=0;
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*pa_device_min_speed=0;
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*pa_device_max_bytes=0;
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*pa_device_min_bytes=0;
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*pa_device_max_channels=0;
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*pa_device_min_channels=0;
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minInputChannels=0;
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if(n >= Pa_GetDeviceCount() ) return -1;
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deviceInfo = Pa_GetDeviceInfo(n);
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if (deviceInfo->maxInputChannels==0) return -1;
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sprintf((char*)(pa_device_name),"%s",deviceInfo->name);
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sprintf((char*)(pa_device_hostapi),"%s",
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Pa_GetHostApiInfo( deviceInfo->hostApi )->name);
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speed_warning=0;
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// bypass bug in Juli@ ASIO driver:
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// this driver hangs after a Pa_IsFormatSupported call
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i = strncmp(deviceInfo->name, "ASIO 2.0 - ESI Juli@", 19);
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if (i == 0) {
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minStandardSampleRate=44100;
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maxStandardSampleRate=192000;
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minBytes=1;
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maxBytes=4;
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maxInputChannels= deviceInfo->maxInputChannels;
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minInputChannels= 1;
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goto end_pa_get_device_info;
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}
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// Investigate device capabilities.
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// Check min and max samplerates with 16 bit data.
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maxStandardSampleRate=0;
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minStandardSampleRate=0;
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inputParameters.device = n;
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inputParameters.channelCount = deviceInfo->maxInputChannels;
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inputParameters.sampleFormat = paInt16;
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inputParameters.suggestedLatency = 0;
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inputParameters.hostApiSpecificStreamInfo = NULL;
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// ************************************************************************
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//filter for portaudio Windows hostapi's with non experts.
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//only allow ASIO or WASAPI or WDM-KS
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i = strncmp(Pa_GetHostApiInfo(deviceInfo->hostApi)->name, "ASIO", 4);
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if (i==0 ) goto end_filter_hostapi;
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i = strncmp(Pa_GetHostApiInfo(deviceInfo->hostApi)->name,
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"Windows WASAPI", 14);
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if (i==0 ) goto end_filter_hostapi;
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i = strncmp(Pa_GetHostApiInfo(deviceInfo->hostApi)->name,
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"Windows WDM-KS", 14);
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if (i==0 ) goto end_filter_hostapi;
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speed_warning=1;
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end_filter_hostapi:;
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// ************************************************************************
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i=0;
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while(standardSampleRates[i] > 0 && minStandardSampleRate==0) {
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pa_err=Pa_IsFormatSupported(&inputParameters, NULL,
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standardSampleRates[i] );
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if(pa_err == paDeviceUnavailable) return -1;
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if(pa_err == paInvalidDevice) return -1;
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if(pa_err == paFormatIsSupported ) {
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minStandardSampleRate=standardSampleRates[i];
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}
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i++;
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}
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if(minStandardSampleRate == 0) return -1;
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j=i;
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while(standardSampleRates[i] > 0 ) i++;
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i--;
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while(i >= j && maxStandardSampleRate==0) {
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pa_err=Pa_IsFormatSupported(&inputParameters, NULL,
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standardSampleRates[i] );
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if(pa_err == paDeviceUnavailable) return -1;
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if(pa_err == paInvalidDevice) return -1;
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if( pa_err == paFormatIsSupported ) {
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maxStandardSampleRate=standardSampleRates[i];
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}
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i--;
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}
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// check if min SampleRate = max SampleRate
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if(maxStandardSampleRate==0 && (minStandardSampleRate != 0)) {
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maxStandardSampleRate= minStandardSampleRate;
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}
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// check min and max bytes
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minBytes=2;
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maxBytes=2;
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inputParameters.sampleFormat = paUInt8;
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pa_err=Pa_IsFormatSupported(&inputParameters, NULL,
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maxStandardSampleRate );
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if( pa_err == paFormatIsSupported ) {
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minBytes=1;
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}
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inputParameters.sampleFormat = paInt32;
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pa_err=Pa_IsFormatSupported(&inputParameters, NULL,
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maxStandardSampleRate );
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if( pa_err == paFormatIsSupported ) {
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maxBytes=4;
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}
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// check min channel count
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maxInputChannels= deviceInfo->maxInputChannels;
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inputParameters.channelCount = 1;
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inputParameters.sampleFormat = paInt16;
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pa_err=paFormatIsSupported+32000;
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while(pa_err != paFormatIsSupported &&
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( inputParameters.channelCount < (maxInputChannels+1)) ) {
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pa_err=Pa_IsFormatSupported(&inputParameters, NULL,
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maxStandardSampleRate );
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inputParameters.channelCount++;
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}
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if( pa_err == paFormatIsSupported ) {
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minInputChannels=inputParameters.channelCount-1;
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} else {
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return -1;
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}
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end_pa_get_device_info:;
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*pa_device_max_speed=maxStandardSampleRate;
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*pa_device_min_speed=minStandardSampleRate;
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*pa_device_max_bytes=maxBytes;
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*pa_device_min_bytes=minBytes;
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*pa_device_max_channels= maxInputChannels;
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*pa_device_min_channels= minInputChannels;
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return speed_warning;
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}
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