[mythtv-users] Smooth playback on BBC HD 1080 h.264 - at last a solution :-)

John reidjr at btconnect.com
Mon Jun 25 18:54:28 UTC 2007


Janne Grunau wrote:
> On Monday 25 June 2007 13:02:41 Peter wrote:
>
>   
>> I've seen the patch
>> that Janne sent to the -dev list, but I can't seem to get it to work
>> properly.
>>     
>
> You have to insert the setting manually into the settings table like 
> this:
>
> +------------------+------+----------+
> | value            | data | hostname |
> +------------------+------+----------+
> | AVSkipLoopFilter | 1    | tjalk    | 
> +------------------+------+----------+
>
> But after the next ffmpeg resync you won't need it anymore if you have a 
> dualcore CPU. Andreas Ömann paralellized ffmpeg's h264 decoder and his 
> patches will go soon into ffmpeg.
>
> Janne
>   

Peter,

I applied Janne's patch for skiploopfilter, but I was actually running 
with a directshow patch and using coreavc rather than the h264 decoder. 
[Ticket #3053: Adds support for DirectShow filters for the frontend]

Janne,

Dual core support for h264 in ffmpeg is really really great news ! 

I think we still need access to any tweeks to reduce cpu requirements 
though, such as the skiploopfilter option. I am running my frontend with 
coreavc, and it uses 60-80% of both cores of an core2duo e4300 to decode 
BBC HD. its MBAFF and seems to really torture the processor ;-). Oh, and 
a fix for the AC3 bug would be cool too :-) (Only joking )

best regards,


John


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