[mythtv-users] Mac OS X video profile settings in 0.21?

[Monkey Pet]

Todd provided his binary for me to test.  Unfortunately, on my intel
macmini (1.83GHz Intel Core 2 Duo, 1GB of memory), i didn't see it
make any difference on the 1080i playback and still had choppy
playback (as observed from watching the video playback).  However,
Todd mentioned something about the 1080i playback not working right in
his post.

Temporary hosted here: http://yoeu.net/~fa/mfe_0.21mmx.zip

On Thu, Mar 13, 2008 at 10:35 AM, Monkey Pet <monkeypet at gmail.com> wrote:
> Hi Todd, can you provide a binary for us to test?  I want to see if
> this patch solves the issue for me.  Thx.
>
>
> On 3/13/08, Todd Ignasiak <todd.ignasiak at gmail.com> wrote:
> > On Sun, Mar 9, 2008 at 1:37 PM, Todd Ignasiak <todd.ignasiak at gmail.com> wrote:
> >  > I just upgraded my Mac OS X MythTV setup to 0.21, and ran into
> >  >  problems with video playback performance.
> >  >
> >  >  1080i playback went from using 80-90% of one CPU (Mac Mini 1.66GHz
> >  >  Core Duo) in 0.20.2 to 135-155% CPU with 0.21 and choppy playback.
> >  >  I have tried a bunch of settings for the video profile, but nothing
> >  >  has brought the CPU down from the 150% range.     Even 720p playback,
> >  >  which used to be around 65-70% cpu load, is at 130%+.
> >
> >
> > After a bunch of experimentation, I finally located a Trac ticket
> >  which had a patch to enable MMX in Leopard.  After applying that
> >  patch, video decoding CPU usage is back down in the ballpark that 0.20
> >  was in.   Are these 'known issues' posted anywhere?  It is not
> >  mentioned in the release notes, or any mailing list, wiki, etc. that I
> >  could find.
> >
> >  The patch is here: http://svn.mythtv.org/trac/ticket/4200
> >
> >  I also enabled the Mac video acceleration (dvdv) option.   For 720p
> >  playback, it looked very promising.. CPU usage was around 50%.   But,
> >  1080i playback didn't work right, the video output was corrupted with
> >  tiles of what appeared to be unused video memory (e.g. chunks of the
> >  Front Row menu were shown when video playback was attempted).
> >
> >
> >
> >  >  I see that the dvdv acceleration is listed as a new feature in 0.21.
> >  >  Does this mean that it is now stable enough for common usage?  My
> >  >  attempts at using it in the past didn't go well.   Are there any
> >  >  limits on its support (is Leopard okay?), or is it documented
> >  >  anywhere?      I am not positive, but I don't think the frontend
> >  >  configuration generated by osx-packager.pl listed Mac acceleration as
> >  >  being enabled.
> >  >
> >  >
> >  >  The settings options appear to be:
> >  >
> >  >  Decoder: Standard, libmpeg2,
> >  >  Video Renderer: opengl, quartz-blit
> >  >  OSD Renderer: softblend
> >  >
> >  >  Decoder: Mac hardware acceleration
> >  >  Video Renderer: quartz-accel
> >  >  OSD Renderer: opengl3
> >  >
> >  >  I thought the closest approximation of 0.20 settings was  Standard
> >  >  MPEG2, Quartz-blit, softblend.  But, that was still up around 150%
> >  >  CPU.
> >  >
> >  >
> >  >  Anyone having better results for Mac OS playback?
> >  >
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>