[x264-devel] Adding borders

[Liu Peng]

In my understanding, adding macroblocks is possible, but adding macroblocks
means we have update slice configuration, and QP values of original
macroblocks.

In addition, the entropy coding has to be changed, you know, the entropy
coding is "Context Adaptive" :-)

/Peng

On Fri, Oct 17, 2008 at 4:05 AM, Loren Merritt <lorenm at u.washington.edu>wrote:

> On Wed, 15 Oct 2008, Leon Woestenberg wrote:
>
> > The question was most probably about adding macroblocks to the
> > existing stream without affecting (re-encoding) the existing stream.
>
> Not possible. If you insert or modify any pixels, you have to requantize
> everything. A sufficiently smart transcoder could save on speed, but it's
> still lossy.
>
> --Loren Merritt
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