[MEncoder-users] RGB => YV12 conversion

Guillaume POIRIER poirierg at gmail.com
Wed Sep 21 16:41:24 CEST 2005


Hi,

On 9/21/05, Julien Lancien <calexicoz at gmail.com> wrote:
> In fact, I was asking the question because I was wondering if there
> was any quality impact of the colorspace when compressing in MPEG4.
> I'm almost sure that this is not the case, but I was thinking
> something like : 1000 kbits/s in YV12 is like 2000 kbits/s in RGB24.
> 
> So is there any influence of the colorspace ?
> 
> I also got another question, which I guess is much debated: which do
> you prefer of xvid and libavcodec ?

lavc is very fast and of good quality if you tune it properly, xvid is
fast and good quality with almost no tuning, and x264 is slow
(compared to xvid and lavc) and yields excellent quality with no
tuning needed.

Guillaume
-- 
Reading doesn't hurt, really!
  -- Dominik 'Rathann' Mierzejewski




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