[mythtv] Funky 720p playback

Keith Cremer mythtv at keithandjill.com
Mon Mar 3 02:56:48 UTC 2008


On Mar 2, 2008, at 1:20 PM, Bill Cizek wrote:

>
>> AFAICT this WLSDT is not broadcasting broken streams, they are just  
>> using
>> an encoding extension we don't support very well. These streams do  
>> in fact
>> play on powerful MythTV machines. I believe they are broadcasting  
>> about 40
>> fps on a 60fps stream and marking some of the frames as repeatable,  
>> but I
>> haven't added the debugging statements to MythTV to confirm this.  
>> If true,
>> MythTV doesn't know what is going on and so the only way it adjusts  
>> is with
>> the A/V sync code. This works, but is CPU intensive.
>>
>> -- Daniel
>>
> I've got a 3.2 GHz P4 and it plays,  it's just funky - kind of like  
> you
> describe above.
>
> Are you referring to the top_field_first and repeat_first_field flags?
>
> I checked my problem recordings and these flags are set within them.
>
> Recordings where they're unset play fine.
>
> If there's anything I can do to help fix / test this let me know.
>
> -Bill



Mine are playing back on a high end Core 2 with plenty of power to  
spare.  I'll do some test captures using the HDHomeRun and VLC to see  
if the stream is intact, and then look at the playback in Myth.

Keith


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