[Mplayer-users] Patch enabling use of multiple Xvideo ports.

Arpi arpi at thot.banki.hu
Thu Jun 21 19:13:11 CEST 2001


> nVidia drivers (1.0-1251) now provide 2 adaptors for hardware scaling and YUV conversion:
> `Video Overlay' (1 port) and `Video Blitter' (32 ports).
> MPlayer with supplied patch will select the first available Xvideo port and locks it for
> exclusive use with XvGrabPort() to avoid conflicts with other clients.
Thank you!

> This theoretically enables watching 33 accelereated video streams simultaneously, but
> something strange happens. After starting 8 mplayers (with no sound) with mpeg video, CPU
> usage is about 50%-70% and video is smooth. After starting the 9th mplayer, CPU usage is
> 100% and video is jerky. Who is to blame?

X11 :)

mplayer uses 50-70% cpu, but X11 also uses some CPU for blitting, maybe the
remaining 30-50%.

A'rpi / Astral & ESP-team

mailto:arpi at thot.banki.hu

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