[mythtv-users] ffmpeg and multiple CPUs. Was: Should I be switching to 0.21?

Phil Bridges gravityhammer at gmail.com
Mon Apr 14 17:43:25 UTC 2008


On Mon, Apr 14, 2008 at 1:26 PM, Brian Wood <beww at beww.org> wrote:
>
>  On Apr 14, 2008, at 11:19 AM, Phil Bridges wrote:
>  >
>  > That is interesting.  I wonder if the same applies for AMD chips?
>  > IIRC, the on-screen documentation recommends not using libmpeg2 with
>  > 64-bit processors, but I may be incorrect.
>
>  Would this apply to 64-bit CPUs running 32-bit code? Or just to
>  machines running 64-bit code?
>
>  I have yet to become aware of any advantage to running Myth in 64-bit
>  mode, but the mpeg libs and possible commflag are where I would expect
>  to see a difference if it exists.
>
>  The theoretical benefits of 64-bits might well be negated by the
>  optimization over the years of the code for 32-bit environments.
>

Yeah - I meant 64-bit code (x86_64).  Was I not wise to install the
64-bit version of Gentoo when I re-installed it on one of my frontends
yesterday?


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