[mythtv-users] OSD slow with hardware decoding?

[Mark Winder]

----- Original Message ----- 
From: "Mike Wood" <mike at woodsnest.com>
To: "Discussion about mythtv" <mythtv-users at mythtv.org>
Sent: 02 December 2003 11:52
Subject: Re: [mythtv-users] OSD slow with hardware decoding?


> Just to let you know, I'm experiencing the same thing you are.  With
> Hardware decoding enabled, playback works very well, almost flawlessly
> in fact.  But whenever any kind of OSD is on the screen (simple OSD for
> channel change, browse mode, etc...)  then my playback stutters and I
> get lots of "prebuffering pauses" in the log file.  Unfortunately, I'm
> not a programmer so I'm useless to try and fix this myself.  But I
> understand Isaac has decided not to support this functionality, so its
> up to the users to track this issue down...if that's possible.  If
> someone else is working on it, and needs my assistance as a tester, let
> me know.  If this could be worked out, my Myth box would get even closer
> to nirvana!  :-)
>
> By the way, setting the OSD fade to 0 certainly helps....but its still
> not perfect.
>
> Mike
>
>
>
>
> Isaac Richards wrote:
>
> >On Monday 01 December 2003 07:48 pm, Curtis Stanford wrote:
> >
> >
> >>I have finally got hardware mpeg2 decoding (CLE266) working with my EPIA
> >>M10000 box and, for the most part, it works pretty well. It cuts down
CPU
> >>usage to 20-30% and allows me to watch higher resolutions and higher
> >>bitrates. The weird thing is that any OSD makes the video pause and
stutter
> >>
> >>
> >>
> > something terrible, especially when it's fading away.
> >
> >
> >>The OSD works much better using software decoding even though much less
CPU
> >>is
> >>
> >>
> > available. With 70-80% CPU available using hardware decoding does
> >
> >
> >>anyone have any ideas why the OSD suffers so badly? Is it a buggy driver
or
> >>just the nature of the beast?
> >>
> >>
> >
> >I just figured that the cle266 didn't like being updated very often with
new
> >OSD frames and never really looked into it.  As I use a pvr-350 in my
epia-m
> >box now, I doubt I'll be looking into it in the future.
> >
> >
> >
> >>And, while I'm at it, why is the OSD black and white using hardware
> >>decoding?
> >>
> >>
> > I've seen reference to the problem in the mailing list archives
> >
> >
> >>but haven't seen a reason why. Is this a dead end or is it something
that
> >>needs a warm body to work on it?
> >>
> >>
> >
> >The hardware is limited to 16 colors for the OSD.  16 shades of grey
looks
> >best with that, 16 colors would look horrible.
> >
> >Isaac
> >
> >_______________________________________________
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> >mythtv-users at mythtv.org
> >http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
> >
> >
> >
>
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