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dvb: Implement parsing of modulation for VDR-style channels config.

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This is required for ATSC cable / terrestrial support.

Signed-off-by: Oliver Freyermuth <o.freyermuth@googlemail.com>
This commit is contained in:
Oliver Freyermuth
2017-10-08 18:05:18 +02:00
parent e46338c66a
commit add0cbea2a
1 changed files with 50 additions and 0 deletions
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50
stream/stream_dvb.c
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@@ -86,6 +86,50 @@ const struct m_sub_options stream_dvb_conf = {
void dvbin_close(stream_t *stream);
static fe_modulation_t parse_vdr_modulation(const char** modstring) {
if (!strncmp(*modstring, "16", 2)) {
(*modstring)+=2;
return QAM_16;
} else if (!strncmp(*modstring, "32", 2)) {
(*modstring)+=2;
return QAM_32;
} else if (!strncmp(*modstring, "64", 2)) {
(*modstring)+=2;
return QAM_64;
} else if (!strncmp(*modstring, "128", 3)) {
(*modstring)+=3;
return QAM_128;
} else if (!strncmp(*modstring, "256", 3)) {
(*modstring)+=3;
return QAM_256;
} else if (!strncmp(*modstring, "998", 3)) {
(*modstring)+=3;
return QAM_AUTO;
} else if (!strncmp(*modstring, "2", 1)) {
(*modstring)++;
return QPSK;
} else if (!strncmp(*modstring, "5", 1)) {
(*modstring)++;
return PSK_8;
} else if (!strncmp(*modstring, "6", 1)) {
(*modstring)++;
return APSK_16;
} else if (!strncmp(*modstring, "7", 1)) {
(*modstring)++;
return APSK_32;
} else if (!strncmp(*modstring, "10", 2)) {
(*modstring)+=2;
return VSB_8;
} else if (!strncmp(*modstring, "11", 2)) {
(*modstring)+=2;
return VSB_16;
} else if (!strncmp(*modstring, "12", 2)) {
(*modstring)+=2;
return DQPSK;
} else {
return QAM_AUTO;
}
}
static void parse_vdr_par_string(const char *vdr_par_str, dvb_channel_t *ptr)
{
@@ -131,6 +175,10 @@ static void parse_vdr_par_string(const char *vdr_par_str, dvb_channel_t *ptr)
}
vdr_par++;
break;
case 'M':
vdr_par++;
ptr->mod = parse_vdr_modulation(&vdr_par);
break;
default:
vdr_par++;
}
@@ -299,6 +347,8 @@ static dvb_channels_list_t *dvb_get_channels(struct mp_log *log,
&num_chars);
if (num_chars == strlen(&line[k])) {
// Modulation parsed here, not via old xine-parsing path.
mod[0] = '\0';
// It's a VDR-style config line.
parse_vdr_par_string(vdr_par_str, ptr);
// Units in VDR-style config files are divided by 1000.