[XviD-devel] RE: possible vfw YV12 stride bug

[Ivan Kalvachev]

Christoph Lampert said:
> On Fri, 30 Jan 2004, Ivan Kalvachev wrote:
>> YV12 is YCbCr and accroding to mpeg standart the Chroma 4:2:0 blocks
>> are coded in that order
>> Y - 0,1,2,3
>> Cb- 4
>> Cr- 5
>
> Okay, okay, changed.
>
> I was confused again (an odd number of times in total), because it says
> "symbols used for chrominance are Cr and Cb" in the beginning (not Cb and
> Cr), but whatever, later it's used vice versa. Anyway, you are of course
> right.
>
>> Unix players use XVID_CSP_USER and are not affected by these changes.
>> And I obey you to change the XVID_CSP_USER to something more
>> meaningfull, like XVID_CSP_PLANAR or whatever.
>
> Well, I'm not sure you actually 'obey' us (SCNR), but I took the liberty
> of renaming XVID_CSP_USER to XVID_CSP_PLANAR while keeping the former
> as alias. We don't want to break compatibility at this time.

Ok, no more "kthreshold" changes:) just add remak in he xvid.h that
USER is obsolate and place PLANAR first.
Maybe will make mplayer configure check for XVID_CSP_PLANAR in too:)))

I want this change to avoid possible confusion with he CSP_USER from
the xvid3 API.

Best Regards
   Ivan Kalvachev
  iive
>
> XVID_BS_VERSION is 27 now. I have no idea how renaming could screw
> anything up, but then... I know me...
>
> gruel
>
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