#include "MacOS.h" // emulate clock_gettime on old MacOS systems
#endif
-#define NEED_DUMMY_AUDIO 1
-
-#ifdef PORTAUDIO
-#include "portaudio.h"
-#undef NEED_DUMMY_AUDIO
-#endif
-#ifdef ALSASOUND
-#include <alsa/asoundlib.h>
-#undef NEED_DUMMY_AUDIO
-#endif
-
#define EXTERN
#include "hpsdrsim.h"
static double last_i_sample=0.0;
static double last_q_sample=0.0;
static int txptr=0;
-static int do_audio=0; // 0: no audio, 1: audio
static int oldnew=3; // 1: only P1, 2: only P2, 3: P1 and P2,
static double txlevel;
if (!strncmp(argv[i],"-hermeslite2", 12)) {OLDDEVICE=DEVICE_HERMES_LITE2;NEWDEVICE=NEW_DEVICE_HERMES_LITE2;}
if (!strncmp(argv[i],"-c25" , 4)) {OLDDEVICE=DEVICE_C25; NEWDEVICE=NEW_DEVICE_HERMES;}
if (!strncmp(argv[i],"-diversity", 10)) {diversity=1;}
- if (!strncmp(argv[i],"-audio", 6)) {do_audio=1;}
if (!strncmp(argv[i],"-P1", 3)) {oldnew=1;}
if (!strncmp(argv[i],"-P2", 3)) {oldnew=2;}
if (!strncmp(argv[i],"-nb", 3)) {
memset (isample, 0, OLDRTXLEN*sizeof(double));
memset (qsample, 0, OLDRTXLEN*sizeof(double));
- if (do_audio) {
- audio_get_cards();
- audio_open_output();
- }
-
if ((sock_udp = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
{
perror("socket");
bp=buffer+16; // skip 8 header and 8 SYNC/C&C bytes
sum=0.0;
for (j=0; j<126; j++) {
- if (do_audio) {
- // write audio samples
- r = (int)((signed char) *bp++)<<8;
- r |= (int)((signed char) *bp++ & 0xFF);
- l = (int)((signed char) *bp++)<<8;
- l |= (int)((signed char) *bp++ & 0xFF);
- audio_write(r,l);
- } else {
- bp +=4;
- }
+ bp +=4; // skip audio samples
sample = (int)((signed char) *bp++)<<8;
sample |= (int) ((signed char) *bp++ & 0xFF);
disample=(double) sample * 0.000030517578125; // division by 32768
active_thread = 0;
return NULL;
}
-
-#ifdef PORTAUDIO
-// PORTAUDIO output function
-
-static int padev = -1;
-static float playback_buffer[256];
-static PaStream *playback_handle=NULL;
-int playback_offset;
-
-
-void audio_get_cards()
-{
- int i, numDevices;
- const PaDeviceInfo *deviceInfo;
- PaStreamParameters inputParameters, outputParameters;
-
- PaError err;
-
- err = Pa_Initialize();
- if( err != paNoError )
- {
- fprintf(stderr, "PORTAUDIO ERROR: Pa_Initialize: %s\n", Pa_GetErrorText(err));
- return;
- }
- numDevices = Pa_GetDeviceCount();
- if( numDevices < 0 ) return;
-
- for( i=0; i<numDevices; i++ )
- {
- deviceInfo = Pa_GetDeviceInfo( i );
-
- outputParameters.device = i;
- outputParameters.channelCount = 1;
- outputParameters.sampleFormat = paFloat32;
- outputParameters.suggestedLatency = 0; /* ignored by Pa_IsFormatSupported() */
- outputParameters.hostApiSpecificStreamInfo = NULL;
- if (Pa_IsFormatSupported(NULL, &outputParameters, 48000.0) == paFormatIsSupported) {
- padev=i;
- fprintf(stderr,"PORTAUDIO OUTPUT DEVICE, No=%d, Name=%s\n", i, deviceInfo->name);
- return;
- }
- }
-}
-
-void audio_open_output()
-{
- PaError err;
- PaStreamParameters outputParameters;
- long framesPerBuffer=256;
-
- bzero( &outputParameters, sizeof( outputParameters ) ); //not necessary if you are filling in all the fields
- outputParameters.channelCount = 1; // Always MONO
- outputParameters.device = padev;
- outputParameters.hostApiSpecificStreamInfo = NULL;
- outputParameters.sampleFormat = paFloat32;
- outputParameters.suggestedLatency = Pa_GetDeviceInfo(padev)->defaultLowOutputLatency ;
- outputParameters.hostApiSpecificStreamInfo = NULL; //See you specific host's API docs for info on using this field
-
- // Try using AudioWrite without a call-back function
-
- playback_offset=0;
- err = Pa_OpenStream(&(playback_handle), NULL, &outputParameters, 48000.0, framesPerBuffer, paNoFlag, NULL, NULL);
- if (err != paNoError) {
- fprintf(stderr,"PORTAUDIO ERROR: AOO open stream: %s\n",Pa_GetErrorText(err));
- playback_handle = NULL;
- return;
- }
-
- err = Pa_StartStream(playback_handle);
- if (err != paNoError) {
- fprintf(stderr,"PORTAUDIO ERROR: AOO start stream:%s\n",Pa_GetErrorText(err));
- playback_handle=NULL;
- return;
- }
- // Write one buffer to avoid under-flow errors
- // (this gives us 5 msec to pass before we have to call audio_write the first time)
- bzero(playback_buffer, (size_t) (256*sizeof(float)));
- err=Pa_WriteStream(playback_handle, (void *) playback_buffer, (unsigned long) 256);
-
- return;
-}
-
-void audio_write (int16_t l, int16_t r)
-{
- PaError err;
- if (playback_handle != NULL) {
- playback_buffer[playback_offset++] = (r + l) *0.000015259; // 65536 --> 1.0
- if (playback_offset == 256) {
- playback_offset=0;
- err=Pa_WriteStream(playback_handle, (void *) playback_buffer, (unsigned long) 256);
- }
- }
-}
-#endif
-#ifdef ALSASOUND
-//
-// Audio functions based on LINUX ALSA
-//
-
-static snd_pcm_t *playback_handle = NULL;
-static unsigned char playback_buffer[1024]; // 256 samples, left-and-right, two bytes per sample
-static int playback_offset;
-
-static char *device_id = NULL;
-
-void audio_get_cards() {
- snd_ctl_card_info_t *info;
- snd_pcm_info_t *pcminfo;
- snd_ctl_card_info_alloca(&info);
- snd_pcm_info_alloca(&pcminfo);
- int i;
- int card = -1;
-
-
- while (snd_card_next(&card) >= 0 && card >= 0) {
- int err = 0;
- snd_ctl_t *handle;
- char name[20];
- snprintf(name, sizeof(name), "hw:%d", card);
- if ((err = snd_ctl_open(&handle, name, 0)) < 0) {
- continue;
- }
-
- if ((err = snd_ctl_card_info(handle, info)) < 0) {
- snd_ctl_close(handle);
- continue;
- }
-
- int dev = -1;
-
- while (snd_ctl_pcm_next_device(handle, &dev) >= 0 && dev >= 0 && device_id == NULL) {
- snd_pcm_info_set_device(pcminfo, dev);
- snd_pcm_info_set_subdevice(pcminfo, 0);
-
- // ouput devices
- snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_PLAYBACK);
- if ((err = snd_ctl_pcm_info(handle, pcminfo)) == 0) {
- device_id=malloc(64);
- snprintf(device_id, 64, "plughw:%d,%d %s", card, dev, snd_ctl_card_info_get_name(info));
- fprintf(stderr,"ALSA output_device: %s\n",device_id);
- }
- }
-
- snd_ctl_close(handle);
-
- }
-
- if (device_id != NULL) return; // found one
-
- // look for dmix
- void **hints, **n;
- char *name, *descr, *io;
-
- if (snd_device_name_hint(-1, "pcm", &hints) < 0)
- return;
- n = hints;
- while (*n != NULL && device_id == NULL) {
- name = snd_device_name_get_hint(*n, "NAME");
- descr = snd_device_name_get_hint(*n, "DESC");
- io = snd_device_name_get_hint(*n, "IOID");
-
- if(strncmp("dmix:", name, 5)==0) {
- fprintf(stderr,"name=%s descr=%s io=%s\n",name, descr, io);
- device_id=malloc(64);
-
- snprintf(device_id, 64, "%s", name);
- fprintf(stderr,"ALSA output_device: %s\n",device_id);
- }
-
- if (name != NULL)
- free(name);
- if (descr != NULL)
- free(descr);
- if (io != NULL)
- free(io);
- n++;
- }
- snd_device_name_free_hint(hints);
-}
-
-
-void audio_open_output() {
- int err;
- snd_pcm_hw_params_t *hw_params;
- int rate=48000;
- int dir=0;
-
- int i;
- char hw[64];
- char *selected=device_id;
-
- i=0;
- while(selected[i]!=' ') {
- hw[i]=selected[i];
- i++;
- }
- hw[i]='\0';
-
- if ((err = snd_pcm_open (&playback_handle, hw, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
- fprintf (stderr, "audio_open_output: cannot open audio device %s (%s)\n",
- hw,
- snd_strerror (err));
- playback_handle = NULL;
- return;
- }
-
- if ((err = snd_pcm_hw_params_malloc (&hw_params)) < 0) {
- fprintf (stderr, "audio_open_output: cannot allocate hardware parameter structure (%s)\n",
- snd_strerror (err));
- playback_handle=NULL;
- return;
- }
-
- if ((err = snd_pcm_hw_params_any (playback_handle, hw_params)) < 0) {
- fprintf (stderr, "audio_open_output: cannot initialize hardware parameter structure (%s)\n",
- snd_strerror (err));
- playback_handle=NULL;
- return;
- }
-
- if ((err = snd_pcm_hw_params_set_access (playback_handle, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
- fprintf (stderr, "audio_open_output: cannot set access type (%s)\n",
- snd_strerror (err));
- playback_handle=NULL;
- return;
- }
-
- if ((err = snd_pcm_hw_params_set_format (playback_handle, hw_params, SND_PCM_FORMAT_S16_LE)) < 0) {
- fprintf (stderr, "audio_open_output: cannot set sample format (%s)\n",
- snd_strerror (err));
- playback_handle=NULL;
- return;
- }
-
-
- if ((err = snd_pcm_hw_params_set_rate_near (playback_handle, hw_params, &rate, &dir)) < 0) {
- fprintf (stderr, "audio_open_output: cannot set sample rate (%s)\n",
- snd_strerror (err));
- playback_handle=NULL;
- return;
- }
-
- if ((err = snd_pcm_hw_params_set_channels (playback_handle, hw_params, 2)) < 0) {
- fprintf (stderr, "audio_open_output: cannot set channel count (%s)\n",
- snd_strerror (err));
- playback_handle=NULL;
- return;
- }
-
- if ((err = snd_pcm_hw_params (playback_handle, hw_params)) < 0) {
- fprintf (stderr, "audio_open_output: cannot set parameters (%s)\n",
- snd_strerror (err));
- playback_handle=NULL;
- return;
- }
-
- snd_pcm_hw_params_free (hw_params);
-
- playback_offset=0;
-
- return;
-}
-
-void audio_write(int16_t left_sample,int16_t right_sample) {
- snd_pcm_sframes_t delay;
- int error;
- long trim;
-
- if(playback_handle!=NULL) {
- playback_buffer[playback_offset++]=right_sample;
- playback_buffer[playback_offset++]=right_sample>>8;
- playback_buffer[playback_offset++]=left_sample;
- playback_buffer[playback_offset++]=left_sample>>8;
-
- if(playback_offset==1024) {
- trim=0;
-
- if(snd_pcm_delay(playback_handle,&delay)==0) {
- if(delay>2048) {
- trim=delay-2048;
- }
- }
-
- if ((error = snd_pcm_writei (playback_handle, playback_buffer, 256-trim)) != 256-trim) {
- if(error==-EPIPE) {
- if ((error = snd_pcm_prepare (playback_handle)) < 0) {
- fprintf (stderr, "audio_write: cannot prepare audio interface for use (%s)\n",
- snd_strerror (error));
- return;
- }
- if ((error = snd_pcm_writei (playback_handle, playback_buffer, 256-trim)) != 256) {
- fprintf (stderr, "audio_write: write to audio interface failed (%s)\n",
- snd_strerror (error));
- return;
- }
- }
- }
- playback_offset=0;
- }
- }
-}
-#endif
-
-//
-// Dummy audio functions if this is compiled without audio support
-//
-#ifdef NEED_DUMMY_AUDIO
-void audio_get_cards()
-{
-}
-void audio_open_output()
-{
-}
-void audio_write (int16_t l, int16_t r)
-{
-}
-#endif
-
projects / pihpsdr.git / commitdiff