[mythtv] EITScanner caused playback issues

Jan Kleinig lueddich at gmx.de
Wed Jul 19 21:10:36 UTC 2006


Can I give you any more details?

This is a short part of my backend's log:

2006-07-19 23:00:07.602 DVBTuning Warning: Invalid inversion, aborting, 
falling back to 'auto'
2006-07-19 23:00:08.208 EITScanner: Now looking for EIT data on 
multiplex of channel 12613
2006-07-19 23:00:22.019 Started PESPacket, but !payloadStart()
2006-07-19 23:00:23.725 EITScanner: Now looking for EIT data on 
multiplex of channel 100

[ about here stumbling starts ]

2006-07-19 23:05:34.335 DVBTuning Warning: Invalid inversion, aborting, 
falling back to 'auto'
2006-07-19 23:05:34.946 EITScanner: Now looking for EIT data on 
multiplex of channel 28670
2006-07-19 23:05:45.822 EITScanner: Added 914 EIT Events
2006-07-19 23:05:45.826 Reschedule requested for id -1.
2006-07-19 23:05:47.077 EITScanner: Now looking for EIT data on 
multiplex of channel 101
2006-07-19 23:05:47.300 Scheduled 39 items in 1.5 


Daniel Kristjansson schrieb:
> On Wed, 2006-07-19 at 22:32 +0200, Jochen Kühner wrote:
>   
>> why is there so much db data needed for a livetv recording???
>>     
> It is not just for LiveTV, and it is not for all LiveTV recordings.
> This is only needed for containers that don't have seek tables.
> This includes any PS or TS MPEG recording. I don't believe you
> need this for the NUV container, whether the codec you use is
> nuppelvideo or MPEG-2/MPEG-4.
>
> The reason you need seek tables is so that you can skip or fast
> forward (>3x) in the recording. While the recording is active
> you ask the backend for this data, but one it is complete you
> get it from the DB. Before the recorder can exit it must have
> written the entire seek table to the DB. In order to not have
> a huge DB load at the end of the recording we write the recently
> detected keyframes to the DB every few keyframes. The write is
> blocking, and hence our problem when we can't get access to the DB.
>
> -- Daniel
>
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>
>   
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