Re: [libdv-dev] YUV output from PAL DV - more details

[Christoph S. <ch...@ne...>]

On Wed, Apr 18, 2001 at 09:19:49PM +0200, Stefan Lucke wrote:
> On Mit, 18 Apr 2001, Christoph Scheurer wrote:
> > Hello,
> > 
> > My first e-mail about my PAL -> YUV 4:2:0 conversion problems with libdv-0.7
> > was probably a little cryptic.
> YUV output format of libdv is probably not that one, other encoders
> expect. By default libdv will produce packed 422 for NTSC and PAL
> source (4CC 0x32595559). For PAL there is an optional compile time
> format available (4CC 0x32315659) 420 planar. That is what some
> encoders prefer.
> Some time ago, we set that output format as the default, which processed
> fastest by Xv.
Thanks! That solved the problem for the MPEG encoding which wants 420 planar
and, as I just found out, also the U and V arrays just in the reverse order
from how libdv produces them. I will have to check whether that also solves
the problem with kino (I assume so). What surprises me is that my r128 card
with Xv didn't like the YUV 422. Or do I have to tell Xv what kind of YUV
format it has to expect?

Christoph

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 Christoph Scheurer              e-mail: ch...@fe...
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