No subject
Thu May 17 19:07:19 UTC 2012
MythTV since both scans yield practically same results.. If there is an
issue with the frequency offset in AUS then both w_scan and Myth behave
same and fail to lock to the offset frequency of +125KHz of our carriers.
What I'm going to do next is add the channel9 frequencies that Vincent
posted into my channel.conf and check if Mplayer can tune to this channels
at all.
Igor
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On Thu, Jun 7, 2012 at 9:39 AM, Igor Cicimov <span dir=3D"ltr"><<a href=
=3D"mailto:icicimov at gmail.com" target=3D"_blank">icicimov at gmail.com</a>>=
</span> wrote:<br><div class=3D"gmail_quote"><blockquote class=3D"gmail_quo=
te" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"=
>
<div class=3D"HOEnZb"><div class=3D"h5">On Wed, Jun 6, 2012 at 8:22 PM, Vin=
cent McIntyre <span dir=3D"ltr"><<a href=3D"mailto:vincent.mcintyre at gmai=
l.com" target=3D"_blank">vincent.mcintyre at gmail.com</a>></span> wrote:<b=
r><div class=3D"gmail_quote">
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
curiosity got the better of me...<br>
<br>
<a href=3D"http://git.linuxtv.org/media_tree.git/commitdiff/f0ef7c88ca91991=
2011593d2392a59c2fde04748?hp=3D4911085fa3342d2ccb04f84c2987305b86785ebf" ta=
rget=3D"_blank">http://git.linuxtv.org/media_tree.git/commitdiff/f0ef7c88ca=
919912011593d2392a59c2fde04748?hp=3D4911085fa3342d2ccb04f84c2987305b86785eb=
f</a><br>
<br>
Perhaps this module needs checking for issues like the one in tuners-xc2028=
.c?<br>
<br>
Might be worth trying to load the driver module with the debug<br>
parameter turned on<br>
and doing a scan?<br>
<div><div>_______________________________________________<br>
mythtv-users mailing list<br>
<a href=3D"mailto:mythtv-users at mythtv.org" target=3D"_blank">mythtv-users at m=
ythtv.org</a><br>
<a href=3D"http://www.mythtv.org/mailman/listinfo/mythtv-users" target=3D"_=
blank">http://www.mythtv.org/mailman/listinfo/mythtv-users</a><br>
</div></div></blockquote></div><br><div><br></div></div></div><div>Hi Vince=
nt,</div><div><br></div><div>Thanks for your input. I believe that Leadtek =
card I use is based on cx2388x chip. This is the l4v support page and the c=
ard, pay attention to revision J detail, is listed as card 82:</div>
<div><br></div><div><a href=3D"http://git.linuxtv.org/media_tree.git/blob/H=
EAD:/Documentation/video4linux/CARDLIST.cx88#l83" target=3D"_blank">http://=
git.linuxtv.org/media_tree.git/blob/HEAD:/Documentation/video4linux/CARDLIS=
T.cx88#l83</a>
</div><div><br></div><div>and is being properly recognized as card=3D82 in =
the kernel module during boot.</div><div><br></div><div>From the driver cha=
nge log you sent me we can see some work was done for DTV2000H Plus card su=
pport which is different one from the one I have.</div>
<div><br></div><div>To answer the question about channel 9 ... It's rea=
lly a roulet with this channel, sometimes its terrible and locks the fronte=
nd same as GO and GEM but sometimes liveTV is fine. But the recordings are =
always horrible ... go figure. I noticed that 7 is also bad but 7two is per=
fect. For the rest of them the LiveTV works fine and the recording are good=
quality.</div>
<div><br></div><div>Someone, I think it was Nick, asked me about channel tu=
ning setup in the backend more specifically about fast channel tuning. I ha=
d that option set to "Always" but had to switch it to "Never=
" because of the tuning issues I have. This way I can skip the channel=
s I know are broken without freezing the frontend in case of auto channel c=
hange.</div>
<div><br></div><div>It really sucks that, as Karl says at the beginning of =
the thread, channel import doesn't work properly too for Australia. Can=
someone confirm that this is being fixed? I really can't see any more =
options for me except for channel import after dvbscan.</div>
<div><br></div><div>I have an old channels.conf in Mplayer from 13/09/2008 =
so will try that one with Mplayer/xine first before I create a new one.</di=
v><div><br></div><div>Thanks,</div><div>Igor</div>
</blockquote></div><br><br>Ok, I shutdown the mythbackend and did a scan. T=
his is the result of the initial scan with w_scan (with terrestrial TV chan=
nels option only):<br><br>$ cat initial-tuning-data.txt <br>#--------------=
----------------------------------------------------------------<br>
# file automatically generated by w_scan<br># (<a href=3D"http://wirbel.htp=
c-forum.de/w_scan/index2.html">http://wirbel.htpc-forum.de/w_scan/index2.ht=
ml</a>)<br>#! <w_scan> 20091230 1 0 OFDM AU </w_scan><br>#-----=
-------------------------------------------------------------------------<b=
r>
# location and provider: <add description here><br># date (yyyy-mm-dd=
)=A0=A0=A0 : 2012-06-07<br># provided by (opt)=A0=A0=A0 : <your name or =
email here><br>#<br># T[2] <freq> <bw> <fec_hi> <fe=
c_lo> <mod> <tm> <guard> <hi> [# comment]<br>
#--------------------------------------------------------------------------=
----<br>T 177500000 7MHz=A0 3/4 NONE=A0=A0=A0 QAM64=A0=A0 8k 1/16 NONE=A0=
=A0=A0 # Seven Network<br>T 219500000 7MHz=A0 3/4 NONE=A0=A0=A0 QAM64=A0=A0=
8k 1/16 NONE=A0=A0=A0 # Network TEN<br>
T 226500000 7MHz=A0 3/4 NONE=A0=A0=A0 QAM64=A0=A0 8k 1/16 NONE=A0=A0=A0 # A=
BC Sydney<br>T 536625000 7MHz=A0 2/3 NONE=A0=A0=A0=A0 QPSK=A0=A0 8k=A0 1/8 =
NONE=A0=A0=A0 # CTV<br>T 571500000 7MHz=A0 2/3 NONE=A0=A0=A0 QAM64=A0=A0 8k=
=A0 1/8 NONE=A0=A0=A0 # SBS Sydney<br><br><br>And for comparison this is wh=
at I have in MythTV database:<br>
<br>mysql> select mplexid,sourceid,transportid,networkid,frequency,sista=
ndard from dtv_multiplex;<br>+---------+----------+-------------+----------=
-+-----------+------------+<br>| mplexid | sourceid | transportid | network=
id | frequency | sistandard |<br>
+---------+----------+-------------+-----------+-----------+------------+<b=
r>|=A0=A0=A0=A0=A0=A0 1 |=A0=A0=A0=A0=A0=A0=A0 1 |=A0=A0=A0=A0=A0=A0=A0 153=
8 |=A0=A0=A0=A0=A0 4116 | 219500000 | dvb=A0=A0=A0=A0=A0=A0=A0 |<br>|=A0=A0=
=A0=A0=A0=A0 2 |=A0=A0=A0=A0=A0=A0=A0 1 |=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 2 |=
=A0=A0=A0=A0=A0=A0=A0 57=A0=A0=A0=A0 | 536500000 | dvb=A0=A0=A0=A0=A0=A0=A0=
|<br>
|=A0=A0=A0=A0=A0 12 |=A0=A0=A0=A0=A0=A0=A0 1 |=A0=A0=A0=A0=A0=A0=A0=A0 768 =
|=A0=A0=A0=A0 12802 | 571500000 | dvb=A0=A0=A0=A0=A0=A0=A0 |<br>|=A0=A0=A0=
=A0=A0 11 |=A0=A0=A0=A0=A0=A0=A0 1 |=A0=A0=A0=A0=A0=A0=A0=A0 545 |=A0=A0=A0=
=A0=A0 4112=A0 | 226500000 | dvb=A0=A0=A0=A0=A0=A0=A0 |<br>|=A0=A0=A0=A0=A0=
10 |=A0=A0=A0=A0=A0=A0=A0 1 |=A0=A0=A0=A0=A0=A0=A0 1056 |=A0=A0=A0=A0=A0 4=
114 | 191500000 | dvb=A0=A0=A0=A0=A0=A0=A0 |<br>
|=A0=A0=A0=A0=A0=A0 9 |=A0=A0=A0=A0=A0=A0=A0 1 |=A0=A0=A0=A0=A0=A0=A0 1282 =
|=A0=A0=A0=A0=A0 4115=A0 | 177500000 | dvb=A0=A0=A0=A0=A0=A0=A0 |<br>+-----=
----+----------+-------------+-----------+-----------+------------+<br><br>=
Looks like Myth did even better tuning job than w_scan and found one more t=
ransponder with frequency of 191500000 :). Maybe that's the channel9/GO=
/GEM carrier?<br>
<br>After using scan to turn this initial file to channels.conf this is wha=
t I get:<br><br><br>$ cat .tzap/channels.conf <br>7 Digital:177500000:INVER=
SION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSION_MODE_8K:GUARD=
_INTERVAL_1_16:HIERARCHY_NONE:513:514:1312<br>
7 Digital 1:177500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64=
:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:513:514:1313<br>7T=
WO:177500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMIS=
SION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:545:546:1314<br>
7mate:177500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANS=
MISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:561:0:1315<br>7 Digital:=
177500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANSMISSIO=
N_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:513:514:1316<br>
TV4ME:177500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_3_4:QAM_64:TRANS=
MISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:625:626:1319<br>ONE:2195=
00000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_1_2:QAM_64:TRANSMISSION_MO=
DE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:514:0:1569<br>
TEN Digital:219500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_1_2:QAM_64=
:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:512:650:1573<br>ON=
E:219500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_1_2:QAM_64:TRANSMISS=
ION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:514:0:1575<br>
ELEVEN:219500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_1_2:QAM_64:TRAN=
SMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:516:681:1576<br>ABC New=
s 24:226500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_1_2:QAM_64:TRANSM=
ISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:2314:0:544<br>
ABC1:226500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_1_2:QAM_64:TRANSM=
ISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:512:650:545<br>ABC2 / ABC=
4:226500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_1_2:QAM_64:TRANSMISS=
ION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:2307:2308:546<br>
ABC1:226500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_1_2:QAM_64:TRANSM=
ISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:512:650:547<br>ABC3:22650=
0000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_3_4:FEC_1_2:QAM_64:TRANSMISSION_MOD=
E_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:2311:2312:548<br>
TVS:536625000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QPSK:TRANSMISS=
ION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:100:101:44<br>SBS ONE:5715000=
00:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_=
8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:161:81:769<br>
SBS TWO:571500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRA=
NSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:162:83:770<br>SBS 3:571=
500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_M=
ODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:161:81:772<br>
SBS 4:571500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANS=
MISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:161:81:773<br>SBS HD:5715=
00000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MO=
DE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:102:103:774<br>
<br>so no channel9, GO and GEM as we can see.<br><br>From this I would say =
it is obvious that the tuning problem is not in MythTV since both scans yie=
ld practically same results.. If there is an issue with the frequency offse=
t in AUS then both w_scan and Myth behave same and fail to lock to the offs=
et frequency of +125KHz of our carriers.<br>
<br>What I'm going to do next is add the channel9 frequencies that Vinc=
ent posted into my channel.conf and check if Mplayer can tune to this chann=
els at all.<br><br>Igor<br><br><br><br>
--14dae93411410dd8ef04c1d764a1--
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