[mythtv-users] Getting teletext working on a PVR350

Daniel A. Segel mythtv at archer-segel.com
Wed May 31 01:09:21 UTC 2006


Michael T. Dean wrote:
> On 05/30/06 20:22, Daniel A. Segel wrote:
>
>   
>> Michael T. Dean wrote:
>>  
>>
>>     
>>> On 05/30/2006 10:53 AM, Daniel A Segel wrote:
>>>
>>>       
>>>> If you are using the built-in MPEG decoder on the PVR-350 for video out 
>>>> (i.e. you have the "Use the PVR-350s MPEG decoder" box checked under 
>>>> Setup) then you need to use your TVs teletext decoder, not the one in 
>>>> Myth.
>>>>
>>>>         
>>> This is no longer true now that Myth has support for ivtv vbi.  You can 
>>> use either the MythTV OSD or the TV's caption decoding.
>>>
>>>       
>> What type of setup do you use to pass the data to the TV if you're not 
>> using the PVR-350s MPEG decoder?
>>
>>     
> Myth
>
>   
>> What would prevent you from having both 
>> decoders active at the same time?
>>  
>>
>>     
> There's only a "both" if you are using the PVR-350's decoder.  In the 
> case that you are, you could actually activate Myth's decoding and the 
> TV's decoding at the same time.
>
>   
>> In my experience, the caption data is not present in the video signal 
>> unless you are using the built-in MPEG decoder; with that option off 
>> it's not passed on to the TV for decoding so you're forced to use Myth's 
>> built-in decoder.
>>
>>     
>
> Exactly.  But Myth's built-in decoder works whether you're using a 
> PVR-350 or not.  Granted, I've never done this, but some guy named 
> "Isaac Richards" told me I was wrong when I said you had to use the TV's 
> decoder with the PVR-350 after reading some posts--all relying on 
> information from one of your posts--that said so.  ;)  See 
> http://www.gossamer-threads.com/lists/mythtv/users/195330#195330 (quoted 
> text, also, to see all the relevant history).

I vaguely remember reading that, but in any case I think Isaac either 
misunderstood the situation or else he's just wrong. Myth's decoder 
displays nothing if you are using the PVR-350's built-in MPEG decoder. 
At least on my system is doesn't. I'd be really happy to be proven wrong...

Daniel



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