[vlc] Re: kfir

[Andreas Krings]

Hello Christopher,

i work with a kfir board too, and had also the problem with the delay. 
One thing is, that the board takes about 1/3 second till 1/2 second to 
encode the mpeg2 stream, and it takes again 1/3-1/2 seconds to decode it 
  again. The point is, that the mpeg2 codec does not save any frame. The 
codec saves only different movements (the so called I-Frames) between 
saving to full frames. So, the codec can only encode a sequence of 10 or 
15 I-Frames when it has got the next full frame. Same thing on decoding. 
  So i got a delay of about 2/3 - 1 second for livestreaming a video 
from my camera. But i did it in vls. 1-2 seconds are too long i think. 
So i guess you can perhaps tune some things (buffer, cache, etc), but 
did not know what! So my advise is to test the kfir with vls and stop 
the delay.

Hope that helps a little bit!

Much greetings

Andreas Krings



Christopher DeMarco schrieb:
> So I've  got my kfir  working after much  bloodletting.  But there  is a
> pretty bad (1-2 sec) lag between  my source and the kfir output; anybody
> know what's up?  My kernel  config and module insertion is pretty kludgy
> right now, so  perhaps I don't have the  correct/best combination of i2c
> code, etc...  but maybe somebody with  a good understanding  of how this
> card works can  give me some ideas about what direction  to head to tune
> this thing?
> 



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