static uint32_t var_InheritCodeRate (vlc_object_t *obj, const char *varname)
{
char *code_rate = var_InheritString (obj, varname);
if (code_rate == NULL)
return VLC_FEC_AUTO;
uint16_t a, b;
int v = sscanf (code_rate, "%"SCNu16"/%"SCNu16, &a, &b);
free (code_rate);
switch (v)
{
case 2:
return VLC_FEC(a, b);
case 1:
if (a == 0)
return 0;
/* Backward compatibility with VLC < 1.2 (= Linux DVBv3 enum) */
if (a < 9)
{
msg_Warn (obj, "\"%s=%"PRIu16"\" option is obsolete. "
"Use \"%s=%"PRIu16"/%"PRIu16"\" instead.",
varname + 4, a, varname + 4, a, a + 1);
return VLC_FEC(a, a + 1);
}
else
msg_Warn (obj, "\"fec=9\" option is obsolete.");
}
return VLC_FEC_AUTO;
}
static int dvb_parse_fec (uint32_t fec)
{
static const dvb_int_map_t rates[] =
{
{ 0, FEC_NONE },
{ VLC_FEC(1,2), FEC_1_2 },
// TODO: 1/3
// TODO: 1/4
{ VLC_FEC(2,3), FEC_2_3 },
{ VLC_FEC(3,4), FEC_3_4 },
{ VLC_FEC(3,5), FEC_3_5 },
{ VLC_FEC(4,5), FEC_4_5 },
{ VLC_FEC(5,6), FEC_5_6 },
{ VLC_FEC(6,7), FEC_6_7 },
{ VLC_FEC(7,8), FEC_7_8 },
{ VLC_FEC(8,9), FEC_8_9 },
{ VLC_FEC(9,10), FEC_9_10 },
{ VLC_FEC_AUTO, FEC_AUTO },
};
return dvb_parse_int (fec, rates, sizeof (rates) / sizeof (*rates),
FEC_AUTO);
}