[mythtv] dvb zero length record
htpc at treblid.dyndns.org
Fri May 27 14:49:29 UTC 2005
Tom Hughes wrote:
>The Twinhan cards don't report BER or UNC values but Myth ignores
>the EOPNOTSUPP that the ioctl returns and uses whatever garbage
>value is in the variable.
>My patch zeroed those values before the ioctl's to avoid this.
Pardon my english, I have to type this rather quickly....
I added a debug message ("DVBChannel:SetPMT slot called") in the SetPMT
slot, thus this debug message should appear immediately after a
"Multiplex Locked" is printed (at least hopefully within that 3000
loop), but it doesn't when it failed (See log below)..
The only place where SetPMT is called is when a NewPMT signal is emitted
in SIParser::CheckTrackers(). Somehow the Table var is not built
properly (or maybe its built from corrupted DVB data?), and when that
happens, SetPMT will not be called, and there's a function inside SetPMT
(ChannelChanged) which isn't called, and so the tuning will fail... At
least that's what I think its happening, pple with DVB knowledge got any
ideas what's happening here?
In the meantime, I have turned on SIPARSER and thus have to wait for
perhaps a few more hours for another failed recording to find out how
2005-05-27 16:56:02.706 Started recording "Ten News" on channel: 1017 on
cardid: 2, sourceid 1
2005-05-27 16:56:02.709 DVB#1 DVB SI Table Parser Started
2005-05-27 16:56:02.799 DVB#1 Using DVB card 1, with frontend DST DVB-T.
2005-05-27 16:56:02.813 scheduler: Schedule Change
2005-05-27 16:56:02.841 Starting message sending..
2005-05-27 16:56:02.858 Ending message sending..
2005-05-27 16:56:02.863 DVB#1 WARNING - Unsupported hierarchy parameter.
2005-05-27 16:56:04.068 DVB#1 DVB signal 5200 | snr 6200 | ber 7e |
2005-05-27 16:56:04.070 DVB#1 Status: LOCK.
2005-05-27 16:56:04.073 DVB#1 Multiplex Locked
2005-05-27 16:56:10.098 DVB#1 XXXX: Tuning failed??
2005-05-27 16:56:10.125 DVB#1 Multiplex Locked
2005-05-27 16:56:11.392 DVB#1 DVBChannel:SetPMT slot called
2005-05-27 16:56:11.397 DVB#1 Successfully tuned to channel 10.
2005-05-27 16:56:11.484 Changing from None to RecordingOnly
2005-05-27 16:56:11.484 Starting message sending..
2005-05-27 16:56:11.512 Ending message sending..
2005-05-27 16:56:11.538 DVB#1 Recorder: Card opened successfully (using
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