[mythtv] DVB Channel Scanning.

[Adam Egger]

On 8/24/05, Stuart Auchterlonie <stuarta at squashedfrog.net> wrote:

> I've tried both existing transport scan and full uk scan.
> The channels themselves are detected but myth setup is
> complaining that it cannot determine which transport to
> associate the channel with.

With r7111 I can't watch LiveTV, I just get a black screen with all
the EPG data and 99%.

Output of mythbackend -v record,channel,siparser:

2005-08-24 15:57:18.289 Using profile 'Live TV' to record
2005-08-24 15:57:18.349 DummyDTVRecorder::StartRecording -- begin
2005-08-24 15:57:18.350 SetRecording(0x0)
2005-08-24 15:57:18.351 SetSignalMonitoringRate(50, 1)
2005-08-24 15:57:18.351 SetupSignalMonitor()
2005-08-24 15:57:18.351 DVB#0 Opening DVB channel
2005-08-24 15:57:18.354 DVB#0 Using DVB card 0, with frontend Zarlink
MT352 DVB-T.
2005-08-24 15:57:18.355 SetupSignalMonitor() -- DVB hack begin
2005-08-24 15:57:18.355 SetupSignalMonitor() -- DVB hack end
2005-08-24 15:57:18.357 DVBSignalMonitor: initial flags 0x7400000
2005-08-24 15:57:18.357 signal monitor successfully created
2005-08-24 15:57:18.357 setting up table monitoring
2005-08-24 15:57:18.358 atsc channel: -1_-1
2005-08-24 15:57:18.358 SignalMonitor::Start() -- begin
2005-08-24 15:57:18.367 SignalMonitor::Start() -- end
2005-08-24 15:57:18.382 DTV: pm#0[-1]: 376 cr(0)
2005-08-24 15:57:19.091 DummyRec: Restart! Frames seen 7
2005-08-24 15:57:19.756 DummyRec: Restart! Frames seen 14
2005-08-24 15:57:19.756 DTV: pm#1[6]: 1751596 cr(0)
2005-08-24 15:57:19.843 DummyRec: Restart! Frames seen 21
2005-08-24 15:57:19.843 DTV: pm#2[13]: 2626736 cr(0)
2005-08-24 15:57:19.903 DummyRec: Restart! Frames seen 28
2005-08-24 15:57:19.904 DTV: pm#3[20]: 3501876 cr(0)
2005-08-24 15:57:20.028 DummyRec: Restart! Frames seen 35
2005-08-24 15:57:20.029 DTV: pm#4[27]: 4377016 cr(0)
2005-08-24 15:57:20.147 DummyRec: Restart! Frames seen 42
2005-08-24 15:57:20.147 DTV: pm#5[34]: 5252156 cr(0)
2005-08-24 15:57:20.203 DummyRec: Restart! Frames seen 49
2005-08-24 15:57:20.203 DTV: pm#6[41]: 6127296 cr(0)
2005-08-24 15:57:20.311 DummyRec: Restart! Frames seen 56
2005-08-24 15:57:20.311 DTV: pm#7[48]: 7002436 cr(0)
2005-08-24 15:57:20.451 DummyRec: Restart! Frames seen 63
2005-08-24 15:57:20.451 DTV: pm#8[55]: 7877576 cr(0)
2005-08-24 15:57:20.623 DummyRec: Restart! Frames seen 70
2005-08-24 15:57:20.623 DTV: pm#9[62]: 8752716 cr(0)
2005-08-24 15:57:20.680 DummyRec: Restart! Frames seen 77
2005-08-24 15:57:20.680 DTV: pm#10[69]: 9627856 cr(0)
2005-08-24 15:57:21.127 DummyRec: Restart! Frames seen 84
2005-08-24 15:57:21.127 DTV: pm#11[76]: 10502996 cr(0)
2005-08-24 15:57:21.403 DummyRec: Restart! Frames seen 91
2005-08-24 15:57:21.403 DTV: pm#12[83]: 11378136 cr(0)
2005-08-24 15:57:21.887 DummyRec: Restart! Frames seen 98
2005-08-24 15:57:21.887 DTV: pm#13[90]: 12253276 cr(0)


 So I tried to rescan all the channels (without deleting the old
channels). But the full scan crashes:

2005-08-24 16:50:46.733 DVB#0 Using DVB card 0, with frontend Zarlink
MT352 DVB-T.
2005-08-24 16:50:46.736 DVB#0 DVB SI Table Parser Started
[New Thread 1090525536 (LWP 27428)]
2005-08-24 16:50:46.748 Connecting up SIParser
[New Thread 1115703648 (LWP 27429)]
ScanTransports(dvbt, ofdm, de)

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1115703648 (LWP 27429)]
SIScan::HandleSIParserEvents (this=0x8be910) at siscan.cpp:1698
1698        if (scanTransports.size() && current != scanTransports.end() &&
(gdb)
(gdb) thread apply all bt full

Thread 7 (Thread 1115703648 (LWP 27429)):
#0  SIScan::HandleSIParserEvents (this=0x8be910) at siscan.cpp:1698
        mplex = Variable "mplex" is not available.

(gdb) bt
#0  SIScan::HandleSIParserEvents (this=0x8be910) at siscan.cpp:1698
#1  0x00002aaaab23bdd8 in SIScan::RunScanner (this=0x8be910) at siscan.cpp:533
#2  0x00002aaaab23c2b9 in SIScan::SpawnScanner (param=Variable "param"
is not available.
) at siscan.cpp:509
#3  0x00002aaaad722b1c in start_thread () from /lib/libpthread.so.0
#4  0x00002aaaadd982f3 in clone () from /lib/libc.so.6

I've updated from svn from 08-12 on my debian64/dvb-t system and I've
also started a make clean. Any idea what to do?