[mythtvnz] DVB-T mux A errors

[Steven Ellis]

On 29/03/2009, at 10:38 PM, Steve V wrote:

> I hope someone can help with this one.
>
> I have previously had my NOVA -T 500 tuner cad working perfectly. I  
> decided to completely reinstall Myth this weekend and now I can't  
> get any of the channels on Mux A to work. Mux B and C are fine.
>
> The channels one, two, tvnz6, tvnz7 etc come up in the list of tuned  
> channels when I scan for channels. But when watching live tv or  
> attempting to record these channels I get an error.
>
> The log shows:
>
> 2009-03-29 21:06:56.880 KeyframeSequencer::decode_Header: SPS has  
> not been parsed!
> 2009-03-29 21:07:16.378 TVRec(3): HW Tuner: 3->3
> 2009-03-29 21:07:16.434 DVBChan(3:0) Warning: Your frequency setting  
> (0) is out of range. (min/max:48000000/860000000)
> 2009-03-29 21:07:16.435 DVBChan(3:0) Error: Tune(): Setting Frontend  
> tuning parameters failed.
>             eno: Invalid argument (22)
> 2009-03-29 21:07:16.436 DVBChan(3:0) Error: SetChannelByString(2):  
> Tuning to frequency.
> 2009-03-29 21:07:16.438 TVRec(3) Error: Failed to set channel to 2.  
> Reverting to kState_None
> 2009-03-29 21:07:16.439 TVRec(3): Changing from WatchingLiveTV to None
>
>  I googled for similar problems and found a solution of sorts:
>
> from:
> Answered my own problem; I had to manually enter the channels  
> frequency in
> the dtv_multiplex table in the database. Why it didn't fill  
> automatically
> like in previous installations is a mystery to me.
>
> Only thing is I have no idea how to do the above. Can someone give  
> me a pointer in how to get started in manually entering the channel  
> frequencies and what to put in for each channel.
>
> I tried using Mythweb changing the freqid for tv one to 690000 but  
> that did not help. Interestingly in mythweb none of the channels  
> have anything in the freqid column yet TV3 and C4 for example work  
> fine.
>
> I found some n\more info on how to check the tables in mysql. It  
> seems that the problem is in the dtv_multiplex table.
>
> This is what I have:
>
> +---------+----------+-------------+-----------+----------- 
> +-----------+------------+------+----------+------------+----------- 
> +--------------+-------------------+----------------+--------- 
> +---------------+-----------+--------------+------------ 
> +----------------+---------------------+
> | mplexid | sourceid | transportid | networkid | frequency |  
> inversion | symbolrate | fec  | polarity | modulation | bandwidth |  
> lp_code_rate | transmission_mode | guard_interval | visible |  
> constellation | hierarchy | hp_code_rate | sistandard |  
> serviceversion | updatetimestamp     |
> +---------+----------+-------------+-----------+----------- 
> +-----------+------------+------+----------+------------+----------- 
> +--------------+-------------------+----------------+--------- 
> +---------------+-----------+--------------+------------ 
> +----------------+---------------------+
> |       1 |        2 |           0 |         0 | 690000000 |  
> a         |          0 | auto | v        | qam_64     | 8         |  
> 1/2          | 8                 | 1/16           |       0 |  
> qam_64        | n         | 3/4          | dvb        |              
> 33 | 2009-03-28 16:35:24 |
> |       2 |        2 |          25 |      8746 |         0 |  
> a         |       NULL | NULL | NULL     | NULL       | 8         |  
> 3/4          | 8                 | 1/16           |       0 |  
> qam_64        | n         | 3/4          | dvb        |              
> 33 | 2009-03-28 16:35:26 |
> |       3 |        2 |          26 |      8746 |         0 |  
> a         |       NULL | NULL | NULL     | NULL       | 8         |  
> 3/4          | 8                 | 1/16           |       0 |  
> qam_64        | n         | 3/4          | dvb        |              
> 33 | 2009-03-28 16:35:26 |
> |       4 |        2 |          27 |      8746 |         0 |  
> a         |       NULL | NULL | NULL     | NULL       | 8         |  
> 3/4          | 8                 | 1/16           |       0 |  
> qam_64        | n         | 3/4          | dvb        |              
> 26 | 2009-03-28 18:06:33 |
> |       5 |        2 |          28 |      8746 |         0 |  
> a         |       NULL | NULL | NULL     | NULL       | 8         |  
> 3/4          | 8                 | 1/16           |       0 |  
> qam_64        | n         | 3/4          | dvb        |              
> 33 | 2009-03-28 16:35:26 |
> |       6 |        2 |          29 |      8746 | 706000000 |  
> a         |       NULL | NULL | NULL     | NULL       | 8         |  
> 3/4          | 8                 | 1/16           |       0 |  
> qam_64        | n         | 3/4          | dvb        |              
> 10 | 2009-03-28 16:35:32 |
> |       7 |        2 |          33 |      8746 | 778000000 |  
> a         |       NULL | NULL | NULL     | NULL       | 8         |  
> 3/4          | 8                 | 1/16           |       0 |  
> qam_64        | n         | 3/4          | dvb        |              
> 27 | 2009-03-28 18:06:33 |
> +---------+----------+-------------+-----------+----------- 
> +-----------+------------+------+----------+------------+----------- 
> +--------------+-------------------+----------------+--------- 
> +---------------+-----------+--------------+------------ 
> +----------------+---------------------+
>
> mplexid 1 does not look correct, can someone let me know what it  
> should be.
>
>

Which city are you in as the value will depend on your transmitter.

Steve


Steven Ellis - Technical Director
OpenMedia Limited
email   - steven at openmedia.co.nz
website - http://www.openmedia.co.nz

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