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Summary: Add in timing code. The captured audio is now decoded.

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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/trunk@41 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
J C Dutton 2006-01-02 01:34:45 +00:00
parent db838694d8
commit 43cb15d438
1 changed files with 22 additions and 2 deletions
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24
start_threads.c
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@ -3,6 +3,7 @@
#include <pthread.h>
#include <alsa/asoundlib.h>
#include <inttypes.h>
#include <time.h>
#if 0
#define ALSA_LOG
@ -27,6 +28,10 @@ typedef struct alsa_driver_s {
int16_t *app_buffer_y2;
int *app_buffer_offset;
int app_buffer_length;
double *Tsec;
double *tbuf;
int *ibuf;
snd_pcm_uframes_t buffer_size;
snd_pcm_uframes_t period_size;
int32_t mmap;
@ -301,20 +306,31 @@ int playback_callback(alsa_driver_t *alsa_driver_playback) {
alsa_driver_t *this = alsa_driver_playback;
printf("playback callback\n");
//snd_pcm_writen(this->audio_fd, alsa_buffers, this->period_size);
//fivehztx_(); //Call fortran routine
}
int capture_callback(alsa_driver_t *alsa_driver_capture) {
alsa_driver_t *this = alsa_driver_capture;
int result;
struct timeval tv;
double stime;
int ib;
#ifdef ALSA_LOG
printf("capture callback %d samples\n", this->period_size);
#endif
#ifdef ALSA_LOG
snd_pcm_status_t *pcm_stat;
snd_pcm_status_alloca(&pcm_stat);
#ifdef ALSA_LOG
snd_pcm_status(this->audio_fd, pcm_stat);
snd_pcm_status_dump(pcm_stat, jcd_out);
#endif
gettimeofday(&tv, NULL);
stime = (double) tv.tv_sec + ((double)tv.tv_usec / 1000.0);
ib=*(this->ibuf);
this->tbuf[ib++]=stime;
if(ib>=1024) ib=0;
*(this->ibuf)=ib;
alsa_buffers[0]=this->app_buffer_y1 + *(this->app_buffer_offset);
alsa_buffers[1]=this->app_buffer_y2 + *(this->app_buffer_offset);
result = snd_pcm_readn(this->audio_fd, alsa_buffers, this->period_size);
@ -326,6 +342,7 @@ int capture_callback(alsa_driver_t *alsa_driver_capture) {
snd_pcm_status(this->audio_fd, pcm_stat);
snd_pcm_status_dump(pcm_stat, jcd_out);
#endif
fivehz_(); //Call fortran routine
}
int capture_xrun(alsa_driver_t *alsa_driver_capture) {
@ -407,7 +424,10 @@ int start_threads_(int *ndevin, int *ndevout, short y1[], short y2[],
alsa_driver_capture.app_buffer_y1=y1;
alsa_driver_capture.app_buffer_y2=y2;
alsa_driver_capture.app_buffer_offset=iwrite;
alsa_driver_capture.app_buffer_length=nsamperbuf;
alsa_driver_capture.app_buffer_length=*nsamperbuf;
alsa_driver_capture.Tsec=Tsec;
alsa_driver_capture.tbuf=tbuf;
alsa_driver_capture.ibuf=ibuf;
printf("start threads called\n");
iret1 = pthread_create(&thread1,NULL,decode1_,&iarg1);