[mythtv-users] Playback acceleration

[Joseph A. Caputo]

On Friday 23 January 2004 14:32, Kevin Kuphal wrote:
> I have a question regarding playback.  My current MythTV setup uses a
> WinTV 401 card for capture and I'm outputting via VGA from my Voodoo
> 5500 AGP card to my TV using a VGA to NTSC converter that works much
> better for my rear projection TV than any TV-OUT I've found.
>
> I have an ATI All-in-Wonder Raedon that I ripped out in place of the
> WinTV 401 because of the unsupported capture features of the card. 
> I'm considering putting it back in because it provides hardware
> acceleration of MPEG via XvImage.
>
> If I substitute my ATI card for my Voodoo 5500 using the gatos
> drivers, will I still enjoy the MPEG acceleration on the VGA output
> as opposed to the TV output?
>
> Also, does it matter if I'm capturing TV using MPEG-4 vs. RTJPEG in
> terms of applying this acceleration.
>
> Thanks,
> Kevin

If you're recording with a WinTV 401 card, then you won't benefit at 
all.  MPEG (decode) acceleration is only for MPEG-1 & MPEG-2.  It won't 
help at all for MPEG-4 or RTjpeg.

-JAC