[Mplayer-users] I420 & YV12 support in XFree86-4.1.0
iive at yahoo.com
Wed Aug 15 17:37:11 CEST 2001
Maybe i was not clear enough. That what i want to say
is that most original XFree86 4.1.0 drivers instead of
using I420 and YV12 planar format that IS supported by
hardware, they do pack it in YUYV by software, and
then puting it in overlay. So in this situation if
YUYV is used it will be faster that YV12 becouse
packing is done with MMX.
>Voodoo3 is really tricky, it has no direct yuv
>but its texture engine can do some hacks.
>Afaik, nvidia geforce (2) can do YV12.
>Yes, matrox g200 is a bit tricky, it supports only 2
>planes, Y and interleaved UV. But G4x0 series has
>hardware 2x2 buffered (hardware vsync swap) planar
>At least the card has it, and mga_vid can use it.
>A'rpi / Astral & ESP-team
>mailto:arpi at thot.banki.hu
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