[mythtv-users] 1080i HD and macmini: Choppy playback

Monkey Pet monkeypet at gmail.com
Wed Oct 1 06:56:08 UTC 2008

Hi all, I was able to finally solve my HD playback issue on the macmini.

Two things that I did:
1.  Made sure the binary that I ran was for the correct CPU which in
my case was intel.  Check to make sure by running the activity monitor
and making sure that the process' "kind" field is correct, again in my
case it was intel and not powerpc.
2.  Toggle playback->scaling on, then reset it to zero as discussed
here: http://www.gossamer-threads.com/lists/mythtv/users/351524#351524
It was the 2nd item that really made the difference.

Now the playback of HD is beautiful and very smooth.

On Mon, Mar 10, 2008 at 3:13 PM, Monkey Pet <monkeypet at gmail.com> wrote:
> I bought myself a brand new macmini (1.83GHz Intel Core 2 Duo, 1GB of
> memory) to use as a myth frontend.  I noticed that 1080i HD content
> recorded from hdhomerun box doesn't play well on my 1080p LCD TV.  The
> HD is watchable, but there are choppiness, ghosting and frame drops.
> The osx mythfrontend binary was obtained from the sniderpad.com
> (http://www.thesniderpad.com//component/option,com_remository/Itemid,36/).
> I noticed that when I shutoff autoscaling in the mythfrontend, the HD
> playback is flawless and perfect.  However, this makes the SD image to
> be very small.  None of the other OSX frontend settings did anything
> to improve the playback.  I am wondering if anyone has a fix for this
> or another set of binaries that I can try.
> On another note, the HD playback using VLC over NFS is also perfect
> and flawless, so I think this has to do with the way the mythfrontend
> is playing the HD content.

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