[MPlayer-dev-eng] [PATCH] very experimenal nvidia_vid

[Sascha Sommer]

>> Other cards are not tested. If you are brave enough please test it out
>> and send me the pci ids that work with the driver. Be carefull,
>> it may lock your system and damage your data !
>0x002c - Vanta (NV06 => NV04 arch)

I made the fixes you proposed and added the fourcc.
Current solution attached.

>> Another problem is that it currently only support uyvy overlay and there
>> is no yv12 -> uyvy converter. Therefore you will
>> have to use the dll codecs or our native cyuv codecs to test it.
>> Not talking about the missing vsync support...
>According to DirectFB driver, you can support YV12 on archs >= NV10, by
>using pitch|1<<16|0x00100000 on setting NV_PVIDEO_FORMAT for archs>=NV10
>(cannot test. I have only Vanta :)
>
>Dunno, if using YV12 is possible for NV04, but if you change 0x011 to
 >0x111 on line 668 (when setting NV_PVIDEO_OVERLAY (KEY_ON, VIDEO_ON,
 >FORMAT_CCIR)), you will select yuy2 output format :) (tested)
>
>So uyvy isn't really problem :)

It seems planar formats are not possible for nv03. Directx always sets the
format to YUY2 even when the app thinks it uses yv12 overlay. I think the
card can do yv12 -> yuy2 with
dma blits.

>I see another problem: vidix API must be expanded to pass bpp to vidix
> driver (for rivatv_overlay_colorkey). Also dunno, if BPP <15 or >24 are
>supported by all cards. (IIRC RIVA128 didn't support even 16bpp).

It is not a problem as we can read those values directly from the card.
I implemented it for nv03 but the registers for nv04 and later are
different.
Maybe the #if 0 block from rivafb helps you.

>There is another problem. I couldn't get it work with vesa:vidix and
>fbdev:vidix. (vesa:vidix plays, but video isn't shown. trying setting
>colorkey to r=0,g=0,b=0, uncommenting block, and trying different
>bufferdepth's gave nothing).

fbdev:vidix works for nv03, vesa untested
I still didn't get the colorkeying right for xvidix. It works with the gimp
window
but not with window created by mplayer.

Sascha
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