[FFmpeg-cvslog] r17548 - in trunk/libavcodec: pixdesc.c pixdesc.h

[Michael Niedermayer]

On Tue, Feb 24, 2009 at 08:29:14AM +0100, Andreas ?man wrote:
> michael wrote:
> > Author: michael
> > Date: Tue Feb 24 02:08:29 2009
> > New Revision: 17548
> > 
> > Log:
> > Pixel Format descriptor, try #1.
> > (yes its intentionally unused, this is intended as a basis for further
> >  work, and to prevent repeation of the whole discussion dying and the
> >  results being forgotten)
> > 
> > Added:
> >    trunk/libavcodec/pixdesc.c
> >    trunk/libavcodec/pixdesc.h
> > 
> > Added: trunk/libavcodec/pixdesc.c
> > ==============================================================================
> > --- /dev/null	00:00:00 1970	(empty, because file is newly added)
> > +++ trunk/libavcodec/pixdesc.c	Tue Feb 24 02:08:29 2009	(r17548)
> > +    /**
> > +     * Amount to shift the luma width right to find the chroma width, this is for
> > +     * example 1 for YV12
> > +     * chroma_width = -((-luma_width )>>log2_chroma_w)
> > +     * note above is needed to ensure rounding up
> > +     */
> > +    uint8_t log2_chroma_w;      ///< chroma_width = -((-luma_width )>>log2_chroma_w)
> 
> Would it make sense to have this conversion available as a macro?

yes

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

I do not agree with what you have to say, but I'll defend to the death your
right to say it. -- Voltaire
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