[x264-devel] AW: Re: AW: Re: Error Concealment

[List, Peter]

> To be honest I somehow avoided being the person to implement FMO in
any of

> our projects (maybe I avoided it on purpose ;)), but from what I can

> gather

> from others it isn't as horrible as it first appears. There are two
nasty

> bits that I am aware of:

> 

> 1. We write hardware decoders and the amount of expensive on-chip RAM

> required to calculate the availability of macroblock neighbours is
just

> too much to justify for this one task. So this calculation has to be
done in

> software and beforehand and downloaded to the chip, which is a
complexity

> that we don't like.

> 

> 2. Without FMO the loop filter can work in the pipeline filtering each

> macroblock as it is decoded and without requiring too much RAM. With
FMO

> this cannot be done and solving this really messes up the design.

> Cheers,

> -Ryan

 

Thank you for taking the time to explain. 

Regards

             Peter

 

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