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

Alex Betis alex.betis at gmail.com
Thu Oct 30 23:10:48 CET 2008


Hi all,

Some updates for scan-s2:
- Frequency files parameters that can specify AUTO are now optional, not
required to appear in the file. See README.
- Added ROLLOFF and modulation specification for DVB-S format. See README.
- Fixed usage of -n (network search) switch. NIT messages will not add new
transponders by default now, so add -n if you really want it.
- NIT messages will not update existing transponders any more. After seeing
several bad NIT messages that caused to miss channels I think that will be
better that way.
- Added dumping of modulation and rolloff to VDR format file. The program
queries the driver after successful tuning to get real parameters of the
channel. Currently the driver do not return real values except for FEC, so
if you specify AUTO values the output file will not have the real rolloff
and modulation values. Igor said he will look at it.
- Added CAID dump to VDR file format, see "-x -2" switch.
- "-x XXX" switch opeation is fixed. Don't know who might want to use it
after real CAID dump (option -2) and dump zeroes to CAID (option -1) is
available.


Currently my TODO list include UTF channel names encoding. If you think of
something else, please let me know and I'll try to add.

Please test the latest version of scan-s2 from:
http://mercurial.intuxication.org/hg/scan-s2/

Enjoy,
Alex.



On Tue, Oct 28, 2008 at 10:20 PM, Alex Betis <alex.betis at gmail.com> wrote:

>
>
> On Tue, Oct 28, 2008 at 10:05 PM, oleg roitburd <oroitburd at gmail.com>wrote:
>
>>
>> Small snipet from VDR/channels.c
>> -------------------------------snip------------------------------
>> const tChannelParameterMap ModulationValues[] = {
>>  {  16, QAM_16,   "QAM16" },
>>  {  32, QAM_32,   "QAM32" },
>>  {  64, QAM_64,   "QAM64" },
>>  { 128, QAM_128,  "QAM128" },
>>  { 256, QAM_256,  "QAM256" },
>>  {   2, QPSK,     "QPSK" },
>>  {   5, PSK_8,    "8PSK" },
>>  {   6, APSK_16,  "16APSK" },
>>  {  10, VSB_8,    "VSB8" },
>>  {  11, VSB_16,   "VSB16" },
>>  { 998, QAM_AUTO, "QAMAUTO" },
>>  { -1 }
>>  };
>>
>> -------------------------------------------snap----------------------------
>
> Thanks. I'll use it in the dump.
>
>
>>
>> >
>> > FEC you can specify in the frequency file as "AUTO", "1/3", "2/3" and so
>> on.
>> > I'll update README to make it clear. All frequency files samples show
>> that
>> > option.
>>
>> i have seen, that FEC will be set if FEC is in initial file.
>> If transponder was found via NIT it will be not set
>
> Yeah, it was my change since I saw NIT specifying incorrect FEC for a
> channel that was in my frequency list already!
> I'll probably change it so NIT will be considered as the correct info
> unless frequency list include non-AUTO value.
> This way it will be possible to overwrite values or rely on network
> announcements if you want full automatic behavior.
>
>
>
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