[mythtvnz] CPU required for Freeview HD

[Nick Rout]

On Fri, Aug 22, 2008 at 1:00 AM, Michael Dilger <mike at mikedilger.com> wrote:

> I know I'm late weighing in on this thread.   I've been busy with other
> things.
>
> I'm running an Athlon64 3200+, I think it's 2.0 GHz.  It is underclocked
> (because I have some freakishly sensitive memory).
>
> I get an extremely watchable system, all the channels work visibly
> flawlessly... except TV3 which stutters.  This includes the Kordia HD
> loop which was also working flawlessly.   However, major caveats:
> 1) I'm not using MythTV, I'm using mplayer-svn
> 2) I'm using "-fs -vo xv -mc 5 -vf pp=fd -vfm ffmpeg -lavdopts
> skiploopfilter=all:fast -framedrop"  ... so it's probably not perfect I
> just cannot see the difference.
> 3) When initially tuning a channel, mplayer has syncing-up issues,
> sometimes jams up and crashes... I can mostly avoid these with a quick
> pause and unpause.
> 4) mplayer still often crashes in decode_audio, but only when initially
> getting the video up and running.
>
> With MythTV, including Paul Kendall's modified version, all the channels
> stutter (run 1 second, pause 1 second).  So I'm not using MythTV at the
> moment.
>
> Point being... the H.264 decompression can be run fast enough on this
> slower hardware.. under the right conditions.   The additional overhead
> of recording to disk while decoding... well that's probably what bogs
> things down.
>
> I am using gentoo (preempt) so everything is compiled and optimised for
> my processor.  Thus, it is a bit faster than pre-built systems like
> Mythbuntu.
>
> -Mike
>


One option might be to use MythTV to do the recordings, then run a script to
move the recorded file to mythvideo, complete with metadata, and set mplayer
as your mythvideo player.

Misses some of the more useful features of the Myth recordings interface,
but perhaps OK as an interim measure.
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