[linux-dvb] [ANNOUNCE] scan-s2 is available, please test

Alex Betis alex.betis at gmail.com
Sun Nov 2 06:06:23 CET 2008


I will add 9/10 support to scan-s2 when I'll have my system working again...


2008/11/1 Michel Verbraak <michel at verbraak.org>

>  Goga777 schreef:
>
>  Приветствую, Michel
>
> but cx24116 based cards don't work with fec=auto for dvb-s2
>
> I'm not sure - may be for cx24116 cards the parameters roll off & modulation are obligatory (not optional)
>
>
>
>
>
>
>  Tested your scan-s2 with a Technisat HD2 card.
>
> Scanning works. But some channels are reported twice with different
> frequency. I found an error which is fixed by the patch file named
> scan.c.diff1.
>
> I would also like to propose the following change (see file scan.c.diff2
> or scan.c.diff which includes both patches). This change makes it
> possible to only scan for DVB-S channels or DVB-S2 channels or both.
> This is done by specifying lines starting with S or S2 in the input file.
>
> example input file:
> # Astra 19.2E SDT info service transponder
> # freq pol sr fec
> S 12522000 H 22000000 2/3       <only DVB-S channels are scanned>
> S 11914000 H 27500000 AUTO
> S 10743750 H 22000000 5/6
> S 12187500 H 27500000 3/4
> S 12343500 H 27500000 3/4
> S 12515250 H 22000000 5/6
> S 12574250 H 22000000 5/6
> S2 12522000 H 22000000 AUTO    <only DVB-S2 channels are scanned>
> S2 11914000 H 27500000 AUTO
>
> I hope this is usefull.
>
> Regards,
>
> Michel.
>
>
>
>
>        Goga,
>
> AUTO fec does work because the following is the result for the DVB-S2
> channels I get with the above input:
>
> PREMIERE HD:11914:h:0:27500:767:772:129:6
> DISCOVERY HD:11914:h:0:27500:1023:1027:130:6
> ASTRA HD+:11914:h:0:27500:1279:1283:131:6
> ANIXE HD:11914:h:0:27500:1535:1539:132:6
>
>
>  you have stb0899 based card, but I have mean cx24116 based card.
>
> Goga
>
>
>
>  Goga,
>
> Sorry I mis understood you. I used AUTO fec because the DVB-S2 channel on
> Astra 19.2 and frequency 11914 use FEC 9/10 according to the webpage
> kingofsat (http://nl.kingofsat.net/pos-19.2E.php). Because current scan-s2
> does not handle this I changed it to AUTO.
>
> fec table according to scan.c
> struct strtab fectab[] = {
>         { "NONE", FEC_NONE },
>         { "1/2",  FEC_1_2 },
>         { "2/3",  FEC_2_3 },
>         { "3/4",  FEC_3_4 },
>         { "4/5",  FEC_4_5 },
>         { "5/6",  FEC_5_6 },
>         { "6/7",  FEC_6_7 },
>         { "7/8",  FEC_7_8 },
>         { "8/9",  FEC_8_9 },
>         { "AUTO", FEC_AUTO },
>         { NULL, 0 }
> };
>
> New DVB API can handle FEC 9/10 (include/linux/dvb/frontend.h)
> typedef enum fe_code_rate {
>         FEC_NONE = 0,
>         FEC_1_2,
>         FEC_2_3,
>         FEC_3_4,
>         FEC_4_5,
>         FEC_5_6,
>         FEC_6_7,
>         FEC_7_8,
>         FEC_8_9,
>         FEC_AUTO,
>         FEC_3_5,
>         FEC_9_10,
> } fe_code_rate_t;
>
> Will create a patch for this as soon as possible.
>
> Regards
>
> Michel.
>
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