VLC 0.4.0 release
tony at castley.net
Mon May 20 02:41:51 CEST 2002
>On Sun, May 19, 2002, Tony Castley wrote:
>> I have had a look at pitch now with a GeForce card, I can get small
>> movies ie <400px width to work fine. However DVD movies don't.
>> are the margin, hidden and visible_bytes for?
> margin should be set to 1 if the physical picture is bigger than
>visible area. visible_bytes is the visible picture width, and hidden
>should be set to 1 if the "non-visible" part of the picture can be
>safely written to.
> For instance, if you have a 250 pixel-wide picture, and the
>system pads lines to multiples of 16, it'll allocate a 256 pixel-wide
>area, and you'll have the following values:
> i_pitch = 256
> b_margin = 1
> b_hidden = 1
> i_visible_bytes = 250
> Please not however that, as stated in the BUGS file, most chroma
>transformation routines completely ignore margins, which may lead to
I now have code that sets the i_pitch and other values correctly.
However it still does not work. I would guess that the chroma used by
the nVidia card does not support the function. Can you check the
chroma for "chroma_i420_yuy2". If you could fix this one at least
nearly all BeOS overlays would work.
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