[mythtv-users] Myth setup for hdtv - config help

Simon Allcorn simon.allcorn at gmail.com
Thu May 29 12:32:08 UTC 2008


Hi,

thanks for the replys.


>>What I do is use ffmpeg via a user job to transcode to a lower resolution
since my frontend TV is also only 1366x768.

Nick - can you give me the details of the your ffmpeg job ? I've got the
same output resolution (26' Samsung LCD TV)

Given it seems my FE is too slow for live HD decoding I'll have to go the
transcode route

thanks

Simon



On Thu, May 29, 2008 at 12:29 PM, Nick F <nikos.f at gmail.com> wrote:

> On 5/29/08, Bill Williamson <bill at bbqninja.com> wrote:
>>
>>
>> On Thu, May 29, 2008 at 6:27 PM, Simon Allcorn <simon.allcorn at gmail.com>
>> wrote:
>>
>
>
>>  What I'm after is details on what config changes (frontend and backend)
>>> I can make to give me the best chance of playing this HD conetent with no
>>> transcoding - I'm lead to believe that my FE box is quick enough (if only
>>> just!) to decode this content.
>>>
>>> *
>>> HD source:*
>>>
>>> UK, BBC HD (1440x1080i 16:9, H.264 with MBAFF)
>>>
>>>
>>> *System:*
>>>
>>> Frontend: P4 *2.4*Ghz (single core), 1Gb memory , 100Mbit network
>>> Backend: P4 Celeron 515Mb memory
>>>
>>
>> my opinion:
>> No way is that fast enough.  Try a 3400+ dual core athlon64 or the like to
>> do it with deinterlacing and never dropping frames.
>>
>
> Seconded.  I'm led to believe a 2.3GHz Core2Duo is the minimum to decode
> BBC HD with the current state of code.  My front end is a Core2Duo 2.1
> (which is faster than your P4) and it doesn't quite work (I get pauses).
> What I do is use ffmpeg via a user job to transcode to a lower resolution
> since my frontend TV is also only 1366x768.  Doesn't help with live tv
> though.  I'm sure as the code gets better the requirements will drop, but I
> don't think the P4 2.4 will probably ever cut it.
>
>
>
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