Theunis Potgieter Said:
I think it is your card that is the problem
http://en.wikipedia.org/wiki/VDPAU shows that is should support up to
VP1, however if you look at mythtv's guide:
http://www.mythtv.org/wiki/VDPAU it starts only at series 8 and newer.
It seems that your card can then only support xvmc for mpeg2 codec only.
Buy a a new 8400 GS (old brand model name but new architecture G98
chip) as indicated here http://en.wikipedia.org/wiki/Nvidia_PureVideo
I've tried it in my production machine now, which has this card:
03:00.0 VGA compatible controller: nVidia Corporation GeForce 8400 GS (rev
a1) (prog-if 00 [VGA controller])
Subsystem: Giga-byte Technology Device 3463
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at ea000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at e8000000 (64-bit, non-prefetchable) [size=32M]
I/O ports at b000 [size=128]
[virtual] Expansion ROM at eb000000 [disabled] [size=128K]
Capabilities:  Power Management version 2
Capabilities:  Message Signalled Interrupts: Mask- 64bit+
Capabilities:  Express Endpoint, MSI 00
Capabilities:  Virtual Channel <?>
Capabilities:  Power Budgeting <?>
Capabilities:  Vendor Specific Information <?>
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nvidia
And while vdpau does work now, I get little CPU improvement (drops from ~60%
under xv to ~45% on vdpau), there's some tearing during action scenes and
some image freezing for a few seconds when switching from live TV to
recordings which I've had to "kill" on occasion.
Currently I only have SD content to watch and my Sony Bravia 32V only
supports up to 1360x668. Any point using vdpau?
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