void vbi_cmd(int ch, char *optarg)
{
char *value, *subs;
bool found_off = false;
v4l2_format *fmt = &vbi_fmt;
switch (ch) {
case OptSetSlicedVbiOutFormat:
case OptTrySlicedVbiOutFormat:
fmt = &vbi_fmt_out;
/* fall through */
case OptSetSlicedVbiFormat:
case OptTrySlicedVbiFormat:
fmt->fmt.sliced.service_set = 0;
subs = optarg;
while (*subs != '\0') {
static const char *const subopts[] = {
"off",
"teletext",
"cc",
"wss",
"vps",
NULL
};
switch (parse_subopt(&subs, subopts, &value)) {
case 0:
found_off = true;
break;
case 1:
fmt->fmt.sliced.service_set |=
V4L2_SLICED_TELETEXT_B;
break;
case 2:
fmt->fmt.sliced.service_set |=
V4L2_SLICED_CAPTION_525;
break;
case 3:
fmt->fmt.sliced.service_set |=
V4L2_SLICED_WSS_625;
break;
case 4:
fmt->fmt.sliced.service_set |=
V4L2_SLICED_VPS;
break;
default:
vbi_usage();
break;
}
}
if (found_off && fmt->fmt.sliced.service_set) {
fprintf(stderr, "Sliced VBI mode 'off' cannot be combined with other modes\n");
vbi_usage();
exit(1);
}
break;
}
}
static void usage_all(void)
{
common_usage();
tuner_usage();
io_usage();
stds_usage();
vidcap_usage();
vidout_usage();
overlay_usage();
vbi_usage();
sdr_usage();
selection_usage();
misc_usage();
streaming_usage();
edid_usage();
}
