libpcm: audio/pcmconv-as-a-library

This commit is contained in:
Sigrid Solveig Haflínudóttir 2024-03-27 23:42:37 +00:00
parent 4834c3c19f
commit 0d84321e65
6 changed files with 982 additions and 0 deletions

27
sys/include/pcm.h Normal file
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#pragma lib "libpcm.a"
#pragma src "/sys/src/libpcm"
typedef struct Pcmconv Pcmconv;
typedef struct Pcmdesc Pcmdesc;
#pragma incomplete Pcmconv
struct Pcmdesc
{
int rate;
int channels;
int framesz;
int abits; /* bits after input conversion */
int bits; /* bits in input stream per sample */
Rune fmt;
};
extern Pcmdesc pcmdescdef; /* s16c2r44100 */
int pcmdescfmt(Fmt*);
int mkpcmdesc(char *f, Pcmdesc *d);
Pcmconv *allocpcmconv(Pcmdesc *in, Pcmdesc *out);
void freepcmconv(Pcmconv *c);
int pcmconv(Pcmconv *c, void *in0, void *out0, int insz);
int pcmratio(Pcmconv *c, int insz);

729
sys/src/libpcm/conv.c Normal file
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#include <u.h>
#include <libc.h>
#include <pcm.h>
typedef struct Chan Chan;
typedef struct Pcmconv Pcmconv;
struct Chan
{
ulong ρ; /* factor */
ulong t; /* time */
ulong ; /* output step */
ulong ; /* filter step */
ulong le; /* filter end */
int u; /* unity scale */
int *h; /* filter coefficients */
int *; /* coefficient deltas for interpolation */
int wx; /* extra samples */
int ix; /* buffer index */
int nx; /* buffer size */
int *x; /* the buffer */
};
struct Pcmconv
{
Pcmdesc idesc;
Pcmdesc odesc;
void (*iconv)(int *, uchar *, int, int, int);
void (*oconv)(int *, uchar *, int, int, int);
int *in;
int *out;
uchar *buf;
int nbuf;
ulong prnd;
int flags;
Chan ch[];
};
enum {
Nl = 8, /* 2^Nl samples per zero crossing in fir */
= 8, /* phase bits for filter interpolation */
Np = Nl+, /* phase bits (fract of fixed point) */
One = 1<<Np,
Fcopy = 1<<0,
Nin = 2048,
};
#define MAXINT ((int)(~0UL>>1))
#define MININT (MAXINT+1)
#define clip(v) ((v) > MAXINT ? MAXINT : ((v) < MININT ? MININT : (v)))
static int
chaninit(Chan *c, int irate, int orate, int count, uintptr caller)
{
static int h[] = {
#include "fir.h"
};
static int [nelem(h)], init = 0;
int n;
c->ρ = ((uvlong)orate<<Np)/irate;
if(c->ρ == One)
goto Done;
c-> = ((uvlong)irate<<Np)/orate;
c-> = 1<<(Nl+);
c->le = nelem(h)<<;
c->wx = 1 + (c->le / c->);
c->u = 13128; /* unity scale factor for fir */
if(c->ρ < One){
c->u *= c->ρ;
c->u >>= Np;
c-> *= c->ρ;
c-> >>= Np;
c->wx *= c->;
c->wx >>= Np;
}
if(!init){
for(n=0; n<nelem()-1; n++)
[n] = h[n+1] - h[n];
init = 1;
}
c->h = h;
c-> = ;
c->ix = c->wx;
c->t = c->ix<<Np;
c->nx = c->wx*2 + count;
c->x = mallocz(sizeof(c->x[0]) * c->nx, 1);
if(c->x == nil){
werrstr("memory");
return -1;
}
setmalloctag(c->x, caller);
count += c->nx; /* account for buffer accumulation */
Done:
return ((uvlong)count * c->ρ) >> Np;
}
static int
filter(Chan *c)
{
ulong l, , le, p, i;
int *x, *h, *, a;
vlong v;
v = 0;
h = c->h;
= c->;
= c->;
le = c->le;
/* left side */
x = &c->x[c->t>>Np];
p = c->t & ((1<<Np)-1);
l = c->ρ < One ? (c->ρ * p)>>Np : p;
while(l < le){
i = l >> ;
a = l & ((1<<)-1);
l += ;
a *= [i];
a >>= ;
a += h[i];
v += (vlong)*(--x) * a;
}
/* right side */
x = &c->x[c->t>>Np];
p = (One - p) & ((1<<Np)-1);
l = c->ρ < One ? (c->ρ * p)>>Np : p;
if(p == 0) /* skip h[0] as it was already been summed above if p == 0 */
l += c->;
while(l < le){
i = l >> ;
a = l & ((1<<)-1);
l += ;
a *= [i];
a >>= ;
a += h[i];
v += (vlong)*x++ * a;
}
/* scale */
v >>= 2;
v *= c->u;
v >>= 27;
return clip(v);
}
static int*
resample(Chan *c, int *x, int *y, int count)
{
ulong e;
int i, n;
if(c->ρ == One){
/* no rate conversion needed */
if(count > 0)
memmove(y, x, count*sizeof(int));
return y+count;
}
if(count == 0){
/* stuff zeros to drain last samples out */
while(c->ix < 2*c->wx)
c->x[c->ix++] = 0;
}
do {
/* fill buffer */
for(i = c->ix, n = c->nx; count > 0 && i < n; count--, i++)
c->x[i] = *x++;
c->ix = i;
/* need at least 2*wx samples in buffer for filter */
if(i < 2*c->wx)
break;
/* process buffer */
e = (i - c->wx)<<Np;
while(c->t < e){
*y++ = filter(c);
c->t += c->;
}
/* check if we'r at the end of buffer and wrap it */
e = c->t >> Np;
if(e >= (c->nx - c->wx)){
c->t -= e << Np;
c->t += c->wx << Np;
n = c->t >> Np;
n -= c->wx;
e -= c->wx;
i -= e;
if(i > 0){
memmove(c->x + n, c->x + e, i*sizeof(int));
n += i;
}
c->ix = n;
}
} while(count > 0);
return y;
}
static ulong
dither(int *y, int ibits, int obits, int count, ulong prnd)
{
if(ibits >= 32 || obits >= ibits)
return prnd;
while(count--){
prnd = (prnd*0x19660dL + 0x3c6ef35fL) & 0xffffffffL;
*y = clip((vlong)*y + ((int)prnd >> ibits));
y++;
}
return prnd;
}
static void
mixin(int *y, int *x, int count)
{
while(count--){
*y = clip((vlong)*y + *x++);
y++;
}
}
static void
siconv(int *dst, uchar *src, int bits, int skip, int count)
{
int i, v, s, b;
b = (bits+7)/8;
s = sizeof(int)*8-bits;
while(count--){
v = 0;
i = b;
switch(b){
case 4:
v = src[--i];
case 3:
v = (v<<8) | src[--i];
case 2:
v = (v<<8) | src[--i];
case 1:
v = (v<<8) | src[--i];
}
*dst++ = v << s;
src += skip;
}
}
static void
Siconv(int *dst, uchar *src, int bits, int skip, int count)
{
int i, v, s, b;
b = (bits+7)/8;
s = sizeof(int)*8-bits;
while(count--){
v = 0;
i = 0;
switch(b){
case 4:
v = src[i++];
case 3:
v = (v<<8) | src[i++];
case 2:
v = (v<<8) | src[i++];
case 1:
v = (v<<8) | src[i];
}
*dst++ = v << s;
src += skip;
}
}
static void
uiconv(int *dst, uchar *src, int bits, int skip, int count)
{
int i, s, b;
uint v;
b = (bits+7)/8;
s = sizeof(uint)*8-bits;
while(count--){
v = 0;
i = b;
switch(b){
case 4:
v = src[--i];
case 3:
v = (v<<8) | src[--i];
case 2:
v = (v<<8) | src[--i];
case 1:
v = (v<<8) | src[--i];
}
*dst++ = (v << s) - (~0UL>>1);
src += skip;
}
}
static void
Uiconv(int *dst, uchar *src, int bits, int skip, int count)
{
int i, s, b;
uint v;
b = (bits+7)/8;
s = sizeof(uint)*8-bits;
while(count--){
v = 0;
i = 0;
switch(b){
case 4:
v = src[i++];
case 3:
v = (v<<8) | src[i++];
case 2:
v = (v<<8) | src[i++];
case 1:
v = (v<<8) | src[i];
}
*dst++ = (v << s) - (~0UL>>1);
src += skip;
}
}
static void
ficonv(int *dst, uchar *src, int bits, int skip, int count)
{
if(bits == 32){
while(count--){
float f;
f = *((float*)src), src += skip;
if(f > 1.0)
*dst++ = MAXINT;
else if(f < -1.0)
*dst++ = MININT;
else
*dst++ = f*((float)MAXINT);
}
} else {
while(count--){
double d;
d = *((double*)src), src += skip;
if(d > 1.0)
*dst++ = MAXINT;
else if(d < -1.0)
*dst++ = MININT;
else
*dst++ = d*((double)MAXINT);
}
}
}
static void
aiconv(int *dst, uchar *src, int, int skip, int count)
{
int t, seg;
uchar a;
while(count--){
a = *src, src += skip;
a ^= 0x55;
t = (a & 0xf) << 4;
seg = (a & 0x70) >> 4;
switch(seg){
case 0:
t += 8;
break;
case 1:
t += 0x108;
break;
default:
t += 0x108;
t <<= seg - 1;
}
t = (a & 0x80) ? t : -t;
*dst++ = t << (sizeof(int)*8 - 16);
}
}
static void
µiconv(int *dst, uchar *src, int, int skip, int count)
{
int t;
uchar u;
while(count--){
u = *src, src += skip;
u = ~u;
t = ((u & 0xf) << 3) + 0x84;
t <<= (u & 0x70) >> 4;
t = u & 0x80 ? 0x84 - t: t - 0x84;
*dst++ = t << (sizeof(int)*8 - 16);
}
}
static void
soconv(int *src, uchar *dst, int bits, int skip, int count)
{
int i, v, s, b;
b = (bits+7)/8;
s = sizeof(int)*8-bits;
while(count--){
v = *src++ >> s;
i = 0;
switch(b){
case 4:
dst[i++] = v, v >>= 8;
case 3:
dst[i++] = v, v >>= 8;
case 2:
dst[i++] = v, v >>= 8;
case 1:
dst[i] = v;
}
dst += skip;
}
}
static void
Soconv(int *src, uchar *dst, int bits, int skip, int count)
{
int i, v, s, b;
b = (bits+7)/8;
s = sizeof(int)*8-bits;
while(count--){
v = *src++ >> s;
i = b;
switch(b){
case 4:
dst[--i] = v, v >>= 8;
case 3:
dst[--i] = v, v >>= 8;
case 2:
dst[--i] = v, v >>= 8;
case 1:
dst[--i] = v;
}
dst += skip;
}
}
static void
uoconv(int *src, uchar *dst, int bits, int skip, int count)
{
int i, s, b;
uint v;
b = (bits+7)/8;
s = sizeof(uint)*8-bits;
while(count--){
v = ((~0UL>>1) + *src++) >> s;
i = 0;
switch(b){
case 4:
dst[i++] = v, v >>= 8;
case 3:
dst[i++] = v, v >>= 8;
case 2:
dst[i++] = v, v >>= 8;
case 1:
dst[i] = v;
}
dst += skip;
}
}
static void
Uoconv(int *src, uchar *dst, int bits, int skip, int count)
{
int i, s, b;
uint v;
b = (bits+7)/8;
s = sizeof(uint)*8-bits;
while(count--){
v = ((~0UL>>1) + *src++) >> s;
i = b;
switch(b){
case 4:
dst[--i] = v, v >>= 8;
case 3:
dst[--i] = v, v >>= 8;
case 2:
dst[--i] = v, v >>= 8;
case 1:
dst[--i] = v;
}
dst += skip;
}
}
static void
foconv(int *src, uchar *dst, int bits, int skip, int count)
{
if(bits == 32){
while(count--){
*((float*)dst) = *src++ / ((float)MAXINT);
dst += skip;
}
} else {
while(count--){
*((double*)dst) = *src++ / ((double)MAXINT);
dst += skip;
}
}
}
Pcmconv *
allocpcmconv(Pcmdesc *i, Pcmdesc *o)
{
uintptr caller;
Pcmconv *c;
int k, nout;
if(i->channels < 1){
werrstr("invalid number of input channels: %d", i->channels);
return nil;
}
if(o->channels < 1){
werrstr("invalid number of output channels: %d", o->channels);
return nil;
}
caller = getcallerpc(&i);
c = mallocz(sizeof(*c) + i->channels*sizeof(Chan) + i->framesz, 1);
if(c == nil){
Nomem:
werrstr("memory");
goto Err;
}
setmalloctag(c, caller);
memcpy(&c->idesc, i, sizeof(*i));
memcpy(&c->odesc, o, sizeof(*o));
c->buf = (uchar*)&c->ch[i->channels+1];
switch(i->fmt){
case L's': c->iconv = siconv; break;
case L'S': c->iconv = Siconv; break;
case L'u': c->iconv = uiconv; break;
case L'U': c->iconv = Uiconv; break;
case L'f': c->iconv = ficonv; break;
case L'a': c->iconv = aiconv; break;
case L'µ': c->iconv = µiconv; break;
default:
werrstr("unsupported input format: %C", i->fmt);
goto Err;
}
switch(o->fmt){
case L's': c->oconv = soconv; break;
case L'S': c->oconv = Soconv; break;
case L'u': c->oconv = uoconv; break;
case L'U': c->oconv = Uoconv; break;
case L'f': c->oconv = foconv; break;
default:
werrstr("unsupported output format: %C", o->fmt);
goto Err;
}
/* if same format, just copy */
c->flags = (
i->rate == o->rate
&& i->bits == o->bits
&& i->channels == o->channels
&& i->framesz == o->framesz
&& i->fmt == o->fmt
) ? Fcopy : 0;
c->in = malloc(sizeof(int) * Nin);
if(c->in == nil)
goto Nomem;
setmalloctag(c->in, caller);
nout = 0;
for(k=0; k < i->channels; k++){
nout = chaninit(&c->ch[k], i->rate, o->rate, Nin, caller);
if(nout < 0)
goto Err;
}
/* out is also used for mixing before resampling, so needs to be max(Nin, nout) */
c->out = malloc(sizeof(int) * (nout > Nin ? nout : Nin));
if(c->out == nil)
goto Nomem;
setmalloctag(c->out, caller);
return c;
Err:
freepcmconv(c);
return nil;
}
void
freepcmconv(Pcmconv *c)
{
int k;
if(c == nil)
return;
free(c->in);
free(c->out);
for(k=0; k < c->idesc.channels; k++)
free(c->ch[k].x);
free(c);
}
static int
conv(Pcmconv *c, uchar *in, uchar *out0, int insz)
{
uchar *out;
Pcmdesc *i, *o;
int k, n, m, nin;
i = &c->idesc;
o = &c->odesc;
out = out0;
nin = insz / i->framesz;
for(;;){
if((n = nin) > Nin)
n = Nin;
nin -= n;
c->iconv(c->in, in, i->bits, i->framesz, n);
if(i->channels > o->channels){
for(k=1; k<i->channels; k++){
c->iconv(c->out, in + k*((i->bits+7)/8), i->bits, i->framesz, n);
mixin(c->in, c->out, n);
}
}
c->prnd = dither(c->in, i->abits, o->abits, n, c->prnd);
m = resample(&c->ch[0], c->in, c->out, n) - c->out;
if(m < 1){
if(n == 0)
break;
} else
c->oconv(c->out, out, o->bits, o->framesz, m);
if(i->channels == o->channels){
for(k=1; k<i->channels; k++){
c->iconv(c->in, in + k*((i->bits+7)/8), i->bits, i->framesz, n);
c->prnd = dither(c->in, i->abits, o->abits, n, c->prnd);
resample(&c->ch[k], c->in, c->out, n);
if(m > 0)
c->oconv(c->out, out + k*((o->bits+7)/8), o->bits, o->framesz, m);
}
} else if(m > 0){
for(k=1; k<o->channels; k++)
c->oconv(c->out, out + k*((o->bits+7)/8), o->bits, o->framesz, m);
}
if(m > 0)
out += m * o->framesz;
if(n == 0)
break;
in += n * i->framesz;
}
return out - (uchar*)out0;
}
int
pcmconv(Pcmconv *c, void *in0, void *out0, int insz)
{
uchar *in, *out;
Pcmdesc *i;
int n;
if(c->flags & Fcopy){
memmove(out0, in0, insz);
return insz;
}
i = &c->idesc;
in = in0;
out = out0;
if(c->nbuf > 0){
n = i->framesz - c->nbuf;
if(n > insz)
n = insz;
memcpy(c->buf+c->nbuf, in, n);
c->nbuf += n;
in += n;
insz -= n;
if(c->nbuf < i->framesz)
return 0;
out += conv(c, c->buf, out, i->framesz);
c->nbuf = 0;
}
n = insz % i->framesz;
insz -= n;
out += conv(c, in, out, insz);
if(n > 0){
memcpy(c->buf, in+insz, n);
c->nbuf += n;
}
return out - (uchar*)out0;
}
int
pcmratio(Pcmconv *c, int insz)
{
int outsz;
if(insz < c->idesc.framesz)
goto Bad;
insz /= c->idesc.framesz;
outsz = ((uvlong)insz * ((uvlong)c->odesc.rate<<Np)/c->idesc.rate) >> Np;
if(outsz > 1)
return outsz;
Bad:
werrstr("invalid buffer size: %d", insz);
return -1;
}

76
sys/src/libpcm/desc.c Normal file
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#include <u.h>
#include <libc.h>
#include <pcm.h>
Pcmdesc pcmdescdef =
{
.rate = 44100,
.channels = 2,
.framesz = 4,
.abits = 16,
.bits = 16,
.fmt = L's',
};
int
pcmdescfmt(Fmt *f)
{
Pcmdesc d;
d = va_arg(f->args, Pcmdesc);
return fmtprint(f, "%C%dc%dr%d", d.fmt, d.bits, d.channels, d.rate);
}
int
mkpcmdesc(char *f, Pcmdesc *d)
{
Rune r;
char *p;
memset(d, 0, sizeof(*d));
p = f;
while(*p != 0){
p += chartorune(&r, p);
switch(r){
case L'r':
d->rate = strtol(p, &p, 10);
break;
case L'c':
d->channels = strtol(p, &p, 10);
break;
case L'm':
r = L'µ';
case L's':
case L'S':
case L'u':
case L'U':
case L'f':
case L'a':
case L'µ':
d->fmt = r;
d->bits = d->abits = strtol(p, &p, 10);
break;
default:
goto Bad;
}
}
if(d->rate <= 0 || d->channels <= 0)
goto Bad;
if(d->fmt == L'a' || d->fmt == L'µ'){
if(d->bits != 8)
goto Bad;
d->abits = 16;
} else if(d->fmt == L'f'){
if(d->bits != 32 && d->bits != 64)
goto Bad;
d->abits = sizeof(int)*8;
} else if(d->bits <= 0 || d->bits > 32)
goto Bad;
d->framesz = ((d->bits+7)/8) * d->channels;
if(d->framesz <= 0)
goto Bad;
return 0;
Bad:
werrstr("bad format: %s", f);
return -1;
}

131
sys/src/libpcm/fir.h Normal file
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@ -0,0 +1,131 @@
/*
* FIR filter coefficients from resample-1.x smallfilter.h
* see Digital Audio Resampling Home Page located at
* http://ccrma.stanford.edu/~jos/resample/
*/
32767, 32766, 32764, 32760, 32755, 32749, 32741, 32731, 32721, 32708,
32695, 32679, 32663, 32645, 32625, 32604, 32582, 32558, 32533, 32506,
32478, 32448, 32417, 32385, 32351, 32316, 32279, 32241, 32202, 32161,
32119, 32075, 32030, 31984, 31936, 31887, 31836, 31784, 31731, 31676,
31620, 31563, 31504, 31444, 31383, 31320, 31256, 31191, 31124, 31056,
30987, 30916, 30845, 30771, 30697, 30621, 30544, 30466, 30387, 30306,
30224, 30141, 30057, 29971, 29884, 29796, 29707, 29617, 29525, 29433,
29339, 29244, 29148, 29050, 28952, 28852, 28752, 28650, 28547, 28443,
28338, 28232, 28125, 28017, 27908, 27797, 27686, 27574, 27461, 27346,
27231, 27115, 26998, 26879, 26760, 26640, 26519, 26398, 26275, 26151,
26027, 25901, 25775, 25648, 25520, 25391, 25262, 25131, 25000, 24868,
24735, 24602, 24467, 24332, 24197, 24060, 23923, 23785, 23647, 23507,
23368, 23227, 23086, 22944, 22802, 22659, 22515, 22371, 22226, 22081,
21935, 21789, 21642, 21494, 21346, 21198, 21049, 20900, 20750, 20600,
20449, 20298, 20146, 19995, 19842, 19690, 19537, 19383, 19230, 19076,
18922, 18767, 18612, 18457, 18302, 18146, 17990, 17834, 17678, 17521,
17365, 17208, 17051, 16894, 16737, 16579, 16422, 16264, 16106, 15949,
15791, 15633, 15475, 15317, 15159, 15001, 14843, 14685, 14527, 14369,
14212, 14054, 13896, 13739, 13581, 13424, 13266, 13109, 12952, 12795,
12639, 12482, 12326, 12170, 12014, 11858, 11703, 11548, 11393, 11238,
11084, 10929, 10776, 10622, 10469, 10316, 10164, 10011, 9860, 9708,
9557, 9407, 9256, 9106, 8957, 8808, 8659, 8511, 8364, 8216, 8070,
7924, 7778, 7633, 7488, 7344, 7200, 7057, 6914, 6773, 6631, 6490,
6350, 6210, 6071, 5933, 5795, 5658, 5521, 5385, 5250, 5115, 4981,
4848, 4716, 4584, 4452, 4322, 4192, 4063, 3935, 3807, 3680, 3554,
3429, 3304, 3180, 3057, 2935, 2813, 2692, 2572, 2453, 2335, 2217,
2101, 1985, 1870, 1755, 1642, 1529, 1418, 1307, 1197, 1088, 979, 872,
765, 660, 555, 451, 348, 246, 145, 44, -54, -153, -250, -347, -443,
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247, 277, 306, 334, 363, 391, 419, 447, 474, 501, 528, 554, 581, 606,
632, 657, 683, 707, 732, 756, 780, 803, 827, 850, 872, 895, 917, 939,
960, 981, 1002, 1023, 1043, 1063, 1082, 1102, 1121, 1139, 1158, 1176,
1194, 1211, 1228, 1245, 1262, 1278, 1294, 1309, 1325, 1340, 1354,
1369, 1383, 1397, 1410, 1423, 1436, 1448, 1461, 1473, 1484, 1496,
1507, 1517, 1528, 1538, 1548, 1557, 1566, 1575, 1584, 1592, 1600,
1608, 1616, 1623, 1630, 1636, 1643, 1649, 1654, 1660, 1665, 1670,
1675, 1679, 1683, 1687, 1690, 1694, 1697, 1700, 1702, 1704, 1706,
1708, 1709, 1711, 1712, 1712, 1713, 1713, 1713, 1713, 1712, 1711,
1710, 1709, 1708, 1706, 1704, 1702, 1700, 1697, 1694, 1691, 1688,
1685, 1681, 1677, 1673, 1669, 1664, 1660, 1655, 1650, 1644, 1639,
1633, 1627, 1621, 1615, 1609, 1602, 1596, 1589, 1582, 1575, 1567,
1560, 1552, 1544, 1536, 1528, 1520, 1511, 1503, 1494, 1485, 1476,
1467, 1458, 1448, 1439, 1429, 1419, 1409, 1399, 1389, 1379, 1368,
1358, 1347, 1337, 1326, 1315, 1304, 1293, 1282, 1271, 1260, 1248,
1237, 1225, 1213, 1202, 1190, 1178, 1166, 1154, 1142, 1130, 1118,
1106, 1094, 1081, 1069, 1057, 1044, 1032, 1019, 1007, 994, 981, 969,
956, 943, 931, 918, 905, 892, 879, 867, 854, 841, 828, 815, 802, 790,
777, 764, 751, 738, 725, 713, 700, 687, 674, 662, 649, 636, 623, 611,
598, 585, 573, 560, 548, 535, 523, 510, 498, 486, 473, 461, 449, 437,
425, 413, 401, 389, 377, 365, 353, 341, 330, 318, 307, 295, 284, 272,
261, 250, 239, 228, 217, 206, 195, 184, 173, 163, 152, 141, 131, 121,
110, 100, 90, 80, 70, 60, 51, 41, 31, 22, 12, 3, -5, -14, -23, -32,
-41, -50, -59, -67, -76, -84, -93, -101, -109, -117, -125, -133, -140,
-148, -156, -163, -170, -178, -185, -192, -199, -206, -212, -219,
-226, -232, -239, -245, -251, -257, -263, -269, -275, -280, -286,
-291, -297, -302, -307, -312, -317, -322, -327, -332, -336, -341,
-345, -349, -354, -358, -362, -366, -369, -373, -377, -380, -384,
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-427, -426, -424, -422, -420, -419, -417, -415, -413, -411, -409,
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-75, -72, -70, -67, -65, -62, -59, -57, -55, -52, -50, -47, -45, -43,
-40, -38, -36, -33, -31, -29, -27, -25, -22, -20, -18, -16, -14, -12,
-10, -8, -6, -4, -2, 0, 0, 2, 4, 6, 8, 9, 11, 13, 14, 16, 17, 19, 21,
22, 24, 25, 27, 28, 29, 31, 32, 33, 35, 36, 37, 38, 40, 41, 42, 43,
44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 56, 57, 58, 59,
59, 60, 61, 62, 62, 63, 63, 64, 64, 65, 66, 66, 66, 67, 67, 68, 68,
69, 69, 69, 70, 70, 70, 70, 71, 71, 71, 71, 71, 72, 72, 72, 72, 72,
72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72,
72, 71, 71, 71, 71, 71, 70, 70, 70, 70, 69, 69, 69, 69, 68, 68, 68,
67, 67, 67, 66, 66, 66, 65, 65, 64, 64, 64, 63, 63, 62, 62, 62, 61,
61, 60, 60, 59, 59, 58, 58, 58, 57, 57, 56, 56, 55, 55, 54, 54, 53,
53, 52, 52, 51, 51, 50, 50, 49, 48, 48, 47, 47, 46, 46, 45, 45, 44,
44, 43, 43, 42, 42, 41, 41, 40, 39, 39, 38, 38, 37, 37, 36, 36, 35,
35, 34, 34, 33, 33, 32, 32, 31, 31, 30, 30, 29, 29, 28, 28, 27, 27,
26, 26, 25, 25, 24, 24, 23, 23, 23, 22, 22, 21, 21, 20, 20, 20, 19,
19, 18, 18, 17, 17, 17, 16, 16, 15, 15, 15, 14, 14, 14, 13, 13, 12,
12, 12, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 6, 6,
6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1,
1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -2, -2, -2, -2, -2, -2, -2,
-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
-2, -2, -2, -2, -2, -2, -2, -2, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

18
sys/src/libpcm/mkfile Normal file
View file

@ -0,0 +1,18 @@
</$objtype/mkfile
LIB=/$objtype/lib/libpcm.a
OFILES=\
conv.$O\
desc.$O\
HFILES=\
/sys/include/pcm.h\
fir.h\
UPDATE=\
mkfile\
$HFILES\
${OFILES:%.$O=%.c}\
${LIB:/$objtype/%=/386/%}\
</sys/src/cmd/mksyslib

View file

@ -28,6 +28,7 @@ LIBS=\
libmemlayer\
libmp\
libndb\
libpcm\
libplumb\
libregexp\
libsat\