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Make format conversion routines return the number of frames 

consumed on both input and output. No behaviour change.
This commit is contained in:
Alexandre Ratchov 2016-05-26 08:16:17 +02:00
parent fd4ff877d4
commit a6ea35ebb3
3 changed files with 55 additions and 52 deletions
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90
aucat/aucat.c
View File

@ -426,38 +426,36 @@ slot_del(struct slot *s)
xfree(s);
}
static int
play_filt_resamp(struct slot *s, void *res_in, void *out, int todo)
static void
play_filt_resamp(struct slot *s, void *res_in, void *out, int *icnt, int *ocnt)
{
int i, offs, vol, nch;
void *in;
if (s->resampbuf) {
todo = resamp_do(&s->resamp,
res_in, s->resampbuf, todo);
resamp_do(&s->resamp, res_in, s->resampbuf, icnt, ocnt);
in = s->resampbuf;
} else
in = res_in;
nch = s->cmap.nch;
vol = s->vol / s->join; /* XXX */
cmap_add(&s->cmap, in, out, vol, todo);
cmap_add(&s->cmap, in, out, vol, *ocnt);
offs = 0;
for (i = s->join - 1; i > 0; i--) {
offs += nch;
cmap_add(&s->cmap, (adata_t *)in + offs, out, vol, todo);
cmap_add(&s->cmap, (adata_t *)in + offs, out, vol, *ocnt);
}
offs = 0;
for (i = s->expand - 1; i > 0; i--) {
offs += nch;
cmap_add(&s->cmap, in, (adata_t *)out + offs, vol, todo);
cmap_add(&s->cmap, in, (adata_t *)out + offs, vol, *ocnt);
}
return todo;
}
static int
play_filt_dec(struct slot *s, void *in, void *out, int todo)
static void
play_filt_dec(struct slot *s, void *in, void *out, int *icnt, int *ocnt)
{
void *tmp;
@ -465,20 +463,21 @@ play_filt_dec(struct slot *s, void *in, void *out, int todo)
if (tmp) {
switch (s->afile.fmt) {
case AFILE_FMT_PCM:
dec_do(&s->conv, in, tmp, todo);
dec_do(&s->conv, in, tmp, *icnt);
break;
case AFILE_FMT_ULAW:
dec_do_ulaw(&s->conv, in, tmp, todo, 0);
dec_do_ulaw(&s->conv, in, tmp, *icnt, 0);
break;
case AFILE_FMT_ALAW:
dec_do_ulaw(&s->conv, in, tmp, todo, 1);
dec_do_ulaw(&s->conv, in, tmp, *icnt, 1);
break;
case AFILE_FMT_FLOAT:
dec_do_float(&s->conv, in, tmp, todo);
dec_do_float(&s->conv, in, tmp, *icnt);
break;
}
}
return play_filt_resamp(s, tmp ? tmp : in, out, todo);
} else
tmp = in;
play_filt_resamp(s, tmp, out, icnt, ocnt);
}
/*
@ -490,25 +489,26 @@ static int
slot_mix_badd(struct slot *s, adata_t *odata)
{
adata_t *idata;
int icount, todo, done;
int len, icnt, ocnt;
idata = (adata_t *)abuf_rgetblk(&s->buf, &icount);
todo = icount / s->bpf;
if (todo > s->round)
todo = s->round;
idata = (adata_t *)abuf_rgetblk(&s->buf, &len);
icnt = len / s->bpf;
if (icnt > s->round)
icnt = s->round;
#ifdef DEBUG
if (todo == 0) {
if (icnt == 0) {
log_puts("slot_mix_badd: not enough data\n");
panic();
}
#endif
done = play_filt_dec(s, idata, odata, todo);
abuf_rdiscard(&s->buf, todo * s->bpf);
return done;
ocnt = dev_round;
play_filt_dec(s, idata, odata, &icnt, &ocnt);
abuf_rdiscard(&s->buf, icnt * s->bpf);
return ocnt;
}
static int
rec_filt_resamp(struct slot *s, void *in, void *res_out, int todo)
static void
rec_filt_resamp(struct slot *s, void *in, void *res_out, int *icnt, int *ocnt)
{
int i, vol, offs, nch;
void *out = res_out;
@ -517,35 +517,33 @@ rec_filt_resamp(struct slot *s, void *in, void *res_out, int todo)
nch = s->cmap.nch;
vol = ADATA_UNIT / s->join;
cmap_copy(&s->cmap, in, out, vol, todo);
cmap_copy(&s->cmap, in, out, vol, *icnt);
offs = 0;
for (i = s->join - 1; i > 0; i--) {
offs += nch;
cmap_add(&s->cmap, (adata_t *)in + offs, out, vol, todo);
cmap_add(&s->cmap, (adata_t *)in + offs, out, vol, *icnt);
}
offs = 0;
for (i = s->expand - 1; i > 0; i--) {
offs += nch;
cmap_copy(&s->cmap, in, (adata_t *)out + offs, vol, todo);
cmap_copy(&s->cmap, in, (adata_t *)out + offs, vol, *icnt);
}
if (s->resampbuf) {
todo = resamp_do(&s->resamp,
s->resampbuf, res_out, todo);
}
return todo;
if (s->resampbuf)
resamp_do(&s->resamp, s->resampbuf, res_out, icnt, ocnt);
else
*ocnt = *icnt;
}
static int
rec_filt_enc(struct slot *s, void *in, void *out, int todo)
static void
rec_filt_enc(struct slot *s, void *in, void *out, int *icnt, int *ocnt)
{
void *tmp;
tmp = s->convbuf;
todo = rec_filt_resamp(s, in, tmp ? tmp : out, todo);
rec_filt_resamp(s, in, tmp ? tmp : out, icnt, ocnt);
if (tmp)
enc_do(&s->conv, tmp, out, todo);
return todo;
enc_do(&s->conv, tmp, out, *ocnt);
}
/*
@ -556,17 +554,19 @@ static void
slot_sub_bcopy(struct slot *s, adata_t *idata, int todo)
{
adata_t *odata;
int ocount;
int len, icnt, ocnt;
odata = (adata_t *)abuf_wgetblk(&s->buf, &ocount);
odata = (adata_t *)abuf_wgetblk(&s->buf, &len);
#ifdef DEBUG
if (ocount < s->round * s->bpf) {
if (len < s->round * s->bpf) {
log_puts("slot_sub_bcopy: not enough space\n");
panic();
}
#endif
ocount = rec_filt_enc(s, idata, odata, todo);
abuf_wcommit(&s->buf, ocount * s->bpf);
icnt = todo;
ocnt = len / s->bpf;
rec_filt_enc(s, idata, odata, &icnt, &ocnt);
abuf_wcommit(&s->buf, ocnt * s->bpf);
}
static int

15
aucat/dsp.c
View File

@ -270,8 +270,8 @@ aparams_native(struct aparams *par)
/*
* resample the given number of frames
*/
int
resamp_do(struct resamp *p, adata_t *in, adata_t *out, int todo)
void
resamp_do(struct resamp *p, adata_t *in, adata_t *out, int *icnt, int *ocnt)
{
unsigned int nch;
adata_t *idata;
@ -298,8 +298,8 @@ resamp_do(struct resamp *p, adata_t *in, adata_t *out, int todo)
ctxbuf = p->ctx;
ctx_start = p->ctx_start;
nch = p->nch;
ifr = todo;
ofr = oblksz;
ifr = *icnt;
ofr = *ocnt;
/*
* Start conversion.
@ -307,9 +307,11 @@ resamp_do(struct resamp *p, adata_t *in, adata_t *out, int todo)
#ifdef DEBUG
if (log_level >= 4) {
log_puts("resamp: copying ");
log_puti(todo);
log_puti(ifr);
log_puts(" frames, diff = ");
log_putu(diff);
log_puts(", max = ");
log_putu(ofr);
log_puts("\n");
}
#endif
@ -359,7 +361,8 @@ resamp_do(struct resamp *p, adata_t *in, adata_t *out, int todo)
}
p->diff = diff;
p->ctx_start = ctx_start;
return oblksz - ofr;
*icnt -= ifr;
*ocnt -= ofr;
}
/*

2
aucat/dsp.h
View File

@ -147,7 +147,7 @@ int aparams_strtoenc(struct aparams *, char *);
int aparams_enctostr(struct aparams *, char *);
int aparams_native(struct aparams *);
int resamp_do(struct resamp *, adata_t *, adata_t *, int);
void resamp_do(struct resamp *, adata_t *, adata_t *, int *, int *);
void resamp_init(struct resamp *, unsigned int, unsigned int, int);
void enc_do(struct conv *, unsigned char *, unsigned char *, int);
void enc_sil_do(struct conv *, unsigned char *, int);