static int writebuffer(CSOUND *csound, SNDFILE *outfd,
MYFLT *outbuf, int nsmps, int *nrecs, OPARMS *O)
{
int n;
if (outfd == NULL) return 0;
n = sf_write_MYFLT(outfd, outbuf, nsmps);
if (n < nsmps) {
sndwrterr(csound, n, nsmps);
return -1;
}
if (O->rewrt_hdr)
csound->rewriteheader(outfd);
(*nrecs)++; /* JPff fix */
switch (O->heartbeat) {
case 1:
csound->MessageS(csound, CSOUNDMSG_REALTIME, "%c\b", "|/-\\"[*nrecs & 3]);
break;
case 2:
csound->MessageS(csound, CSOUNDMSG_REALTIME, ".");
break;
case 3:
csound->MessageS(csound, CSOUNDMSG_REALTIME, "%d%n", *nrecs, &n);
while (n--) csound->MessageS(csound, CSOUNDMSG_REALTIME, "\b");
break;
case 4:
csound->MessageS(csound, CSOUNDMSG_REALTIME, "\a");
break;
}
return nsmps;
}
static void writesf_dither_8(CSOUND *csound, const MYFLT *outbuf, int nbytes)
{
OPARMS *O = csound->oparms;
int n;
int m = nbytes / sizeof(MYFLT);
MYFLT *buf = (MYFLT*) outbuf;
int dith;
if (UNLIKELY(STA(outfile) == NULL))
return;
dith = STA(dither);
for (n=0; n<m; n++) {
int tmp = ((dith * 15625) + 1) & 0xFFFF;
int rnd = ((tmp * 15625) + 1) & 0xFFFF;
MYFLT result;
dith = rnd;
rnd = (rnd+tmp)>>1; /* triangular distribution */
result = (MYFLT) (rnd - 0x8000) / ((MYFLT) 0x10000);
result /= ((MYFLT) 0x7f);
buf[n] += result;
}
STA(dither) = dith;
n = (int) sf_write_MYFLT(STA(outfile), (MYFLT*) outbuf,
nbytes / sizeof(MYFLT)) * (int) sizeof(MYFLT);
if (UNLIKELY(n < nbytes))
sndwrterr(csound, n, nbytes);
if (UNLIKELY(O->rewrt_hdr))
rewriteheader(STA(outfile));
switch (O->heartbeat) {
case 1:
csound->MessageS(csound, CSOUNDMSG_REALTIME,
"%c\010", "|/-\\"[csound->nrecs & 3]);
break;
case 2:
csound->MessageS(csound, CSOUNDMSG_REALTIME, ".");
break;
case 3:
{
char s[512];
CS_SPRINTF(s, "%ld(%.3f)%n", (long) csound->nrecs,
csound->icurTime/csound->esr, &n);
if (n > 0) {
memset(&(s[n]), '\b', n);
s[n + n] = '\0';
csound->MessageS(csound, CSOUNDMSG_REALTIME, "%s", s);
}
}
break;
case 4:
csound->MessageS(csound, CSOUNDMSG_REALTIME, "\a");
break;
}
}
static void writesf(CSOUND *csound, const MYFLT *outbuf, int nbytes)
{
OPARMS *O = csound->oparms;
int n;
if (UNLIKELY(STA(outfile) == NULL))
return;
n = (int) sf_write_MYFLT(STA(outfile), (MYFLT*) outbuf,
nbytes / sizeof(MYFLT)) * (int) sizeof(MYFLT);
if (UNLIKELY(n < nbytes))
sndwrterr(csound, n, nbytes);
if (UNLIKELY(O->rewrt_hdr))
rewriteheader((void *)STA(outfile));
switch (O->heartbeat) {
case 1:
csound->MessageS(csound, CSOUNDMSG_REALTIME,
"%c\010", "|/-\\"[csound->nrecs & 3]);
break;
case 2:
csound->MessageS(csound, CSOUNDMSG_REALTIME, ".");
break;
case 3:
{
char s[512];
CS_SPRINTF(s, "%ld(%.3f)%n", (long) csound->nrecs,
csound->icurTime/csound->esr, &n);
if (n > 0) {
memset(&(s[n]), '\b', n);
s[n + n] = '\0';
csound->MessageS(csound, CSOUNDMSG_REALTIME, "%s", s);
}
}
break;
case 4:
csound->MessageS(csound, CSOUNDMSG_REALTIME, "%s", "\a");
break;
}
}