int lsx_biquad_getopts(sox_effect_t * effp, int argc, char **argv,
int min_args, int max_args, int fc_pos, int width_pos, int gain_pos,
char const * allowed_width_types, filter_t filter_type)
{
priv_t * p = (priv_t *)effp->priv;
char width_type = *allowed_width_types;
char dummy, * dummy_p; /* To check for extraneous chars. */
--argc, ++argv;
p->filter_type = filter_type;
if (argc < min_args || argc > max_args ||
(argc > fc_pos && ((p->fc = lsx_parse_frequency(argv[fc_pos], &dummy_p)) <= 0 || *dummy_p)) ||
(argc > width_pos && ((unsigned)(sscanf(argv[width_pos], "%lf%c %c", &p->width, &width_type, &dummy)-1) > 1 || p->width <= 0)) ||
(argc > gain_pos && sscanf(argv[gain_pos], "%lf %c", &p->gain, &dummy) != 1) ||
!strchr(allowed_width_types, width_type) || (width_type == 's' && p->width > 1))
return lsx_usage(effp);
p->width_type = strchr(all_width_types, width_type) - all_width_types;
if (p->width_type >= strlen(all_width_types))
p->width_type = 0;
if (p->width_type == width_bw_kHz) {
p->width *= 1000;
p->width_type = width_bw_Hz;
}
return SOX_SUCCESS;
}
static int create(sox_effect_t * effp, int argc, char * * argv)
{
priv_t * p = (priv_t *)effp->priv;
dft_filter_priv_t * b = &p->base;
char * parse_ptr = argv[0];
int i = 0;
b->filter_ptr = &b->filter;
p->phase = 50;
p->beta = -1;
while (i < 2) {
int c = 1;
while (c && (c = lsx_getopt(argc, argv, "+ra:b:p:MILt:n:")) != -1) switch (c) {
char * parse_ptr;
case 'r': p->round = sox_true; break;
GETOPT_NUMERIC('a', att, 40 , 180)
GETOPT_NUMERIC('b', beta, 0 , 256)
GETOPT_NUMERIC('p', phase, 0, 100)
case 'M': p->phase = 0; break;
case 'I': p->phase = 25; break;
case 'L': p->phase = 50; break;
GETOPT_NUMERIC('n', num_taps[1], 11, 32767)
case 't': p->tbw1 = lsx_parse_frequency(lsx_optarg, &parse_ptr);
if (p->tbw1 < 1 || *parse_ptr) return lsx_usage(effp);
break;
default: c = 0;
}
if ((p->att && p->beta >= 0) || (p->tbw1 && p->num_taps[1]))
return lsx_usage(effp);
if (!i || !p->Fc1)
p->tbw0 = p->tbw1, p->num_taps[0] = p->num_taps[1];
if (!i++ && lsx_optind < argc) {
if (*(parse_ptr = argv[lsx_optind++]) != '-')
p->Fc0 = lsx_parse_frequency(parse_ptr, &parse_ptr);
if (*parse_ptr == '-')
p->Fc1 = lsx_parse_frequency(parse_ptr + 1, &parse_ptr);
}
}
return lsx_optind != argc || p->Fc0 < 0 || p->Fc1 < 0 || *parse_ptr ?
lsx_usage(effp) : SOX_SUCCESS;
}
static int getopts(sox_effect_t * effp, int argc, char **argv)
{
char *subargv[6], *cp;
size_t subargc, i, len;
priv_t * c = (priv_t *) effp->priv;
--argc, ++argv;
c->band_buf1 = c->band_buf2 = c->band_buf3 = 0;
c->band_buf_len = 0;
/* how many bands? */
if (! (argc&1)) {
lsx_fail("mcompand accepts only an odd number of arguments:\argc"
" mcompand quoted_compand_args [crossover_freq quoted_compand_args [...]");
return SOX_EOF;
}
c->nBands = (argc+1)>>1;
c->bands = lsx_calloc(c->nBands, sizeof(comp_band_t));
for (i=0;i<c->nBands;++i) {
len = strlen(argv[i<<1]);
if (parse_subarg(argv[i<<1],subargv,&subargc) != SOX_SUCCESS)
return SOX_EOF;
if (sox_mcompand_getopts_1(&c->bands[i], subargc, &subargv[0]) != SOX_SUCCESS)
return SOX_EOF;
if (i == (c->nBands-1))
c->bands[i].topfreq = 0;
else {
c->bands[i].topfreq = lsx_parse_frequency(argv[(i<<1)+1],&cp);
if (*cp) {
lsx_fail("bad frequency in args to mcompand");
return SOX_EOF;
}
if ((i>0) && (c->bands[i].topfreq < c->bands[i-1].topfreq)) {
lsx_fail("mcompand crossover frequencies must be in ascending order.");
return SOX_EOF;
}
}
}
return SOX_SUCCESS;
}
