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Old 11-18-10, 02:18 PM   #1
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Default vdpau+mplayer problems

hi there,

this might actually be an mplayer issue, but i'm not sure. when i do 'mplayer -vo vdpau', there's heavy load on my CPU which indicates that GPU acceleration is *not* used for decoding videos.

i need to do 'mplayer vo -vdpau -vc ffh264vdpau' in order to have GPU acceleration working. any reason for that?

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Old 12-17-10, 03:52 AM   #2
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Smile Re: vdpau+mplayer problems

I recently went through this myself. First thing to note is that you can specify these options within mplayer config file, making the codecs list the first "forced" for use but mplayer will fall back to whatever codec it needs if the one required is not in the force list.

Also note the feature set of your NVIDIA chip, I can't get divx acceleration on my GPU. took me a alot of googleing to understand why, check the file link below in my mplayer config.

cat ~/.mplayer/config

# Write your default config options here!
# file:///usr/local/share/doc/NVIDIA_GLX-1.0/html/supportedchips.html
# vc=ffh264vdpau,ffmpeg12vdpau,ffodivxvdpau,ffvc1vdp au,ffwmv3vdpau,
vc=ffh264vdpau,ffmpeg12vdpau,ffvc1vdpau,ffwmv3vdpa u,

Finally I noticed that gmplayer and mplayer don't behave the same when selecting vdpau or not and gmplayer core dumps. I can't be arsed to resolve that though as keyboard controls are good enough for me!

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Old 12-17-10, 07:22 AM   #3
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Default Re: vdpau+mplayer problems

thanks a bunch. my gpu supports vdpau feature set A. adding the example config lines you posted to my .mplayer/config did the trick.
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