On 08/17/2015 03:33 PM, Timothy B. Terriberry wrote:
> Well, certainly if you implement it in the order Jean-Marc was
> describing, you could apply deblocking to pixels along interior edges
> before using them to predict adjacent blocks along an exterior edge, but
> I believe that was one of the "not implementation friendly" things
> Minhua Zhou was complaining about. It means your hardware can't pipeline
> reconstruction of those neighboring blocks until it has the deblocked
> pixels, which is fairly late in the process.
Well, most intra predictors use only the pixels on the edges of the
block, so the interior pixels -- deblocked or not -- aren't used at all.
In that case, the "recursive deblocking" is just equivalent to decoding
the entire image and then deblocking rows/columns that are multiples of
8 but not 16 first, then deblocking those are are multiples of 16 but
not 32, then deblocking the rest...
Jean-Marc
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