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- Clean up zero of null sound buffer for write and clean up logic

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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/trunk@109 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Diane Bruce 2006-01-15 22:17:12 +00:00
parent 78c9bb6585
commit c3ab5968fa
1 changed files with 7 additions and 6 deletions
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11
start_oss.c
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@ -7,6 +7,7 @@
#include <fcntl.h> #include <fcntl.h>
#include <sys/soundcard.h> #include <sys/soundcard.h>
#include "conf.h" #include "conf.h"
#include <string.h>
#define AUDIOBUFSIZE 4096 #define AUDIOBUFSIZE 4096
#define FRAMESPERBUFFER 1024 #define FRAMESPERBUFFER 1024
@ -251,16 +252,18 @@ oss_loop(int *iarg)
stime = (double) tv.tv_sec + ((double)tv.tv_usec / 1000000.0) + stime = (double) tv.tv_sec + ((double)tv.tv_usec / 1000000.0) +
*(data.ndsec) * 0.1; *(data.ndsec) * 0.1;
*(data.Tsec) = stime; *(data.Tsec) = stime;
if(*(data.TxOK) && (!TxOKz)) { if(*(data.TxOK) && (!TxOKz)) {
n=nsec/(*(data.trperiod)); n=nsec/(*(data.trperiod));
ic = (int)(stime - *(data.trperiod)*n) * data.nfs; ic = (int)(stime - *(data.trperiod)*n) * data.nfs;
ic = ic % *(data.nwave); ic = ic % *(data.nwave);
} }
TxOKz = *(data.TxOK); TxOKz = *(data.TxOK);
*(data.Transmitting) = *(data.TxOK); *(data.Transmitting) = *(data.TxOK);
wptr = (int16_t *)tx_buf; /* XXX */ wptr = (int16_t *)tx_buf; /* XXX */
for(i=0 ; i<FRAMESPERBUFFER; i++ ) {
if(*(data.TxOK)) { if(*(data.TxOK)) {
for(i=0 ; i<FRAMESPERBUFFER; i++ ) {
n2 = data.iwave[ic]; n2 = data.iwave[ic];
addnoise_(&n2); addnoise_(&n2);
*wptr++ = n2; /* left */ *wptr++ = n2; /* left */
@ -272,10 +275,8 @@ oss_loop(int *iarg)
*(data.TxOK) = 0; *(data.TxOK) = 0;
} }
} }
else { } else {
*wptr++ = 0; /* left */ memset(tx_buf, 0, AUDIOBUFSIZE);
*wptr++ = 0; /* right */
}
} }
if (write(data.fd_out, tx_buf, AUDIOBUFSIZE) < 0) { if (write(data.fd_out, tx_buf, AUDIOBUFSIZE) < 0) {