[mythtv-users] Mac OS X video profile settings in 0.21?
Monkey Pet
monkeypet at gmail.com
Fri Mar 14 21:28:54 UTC 2008
If I shutoff the auto-scale, the picture is alot less choppier, but
not perfect. Now if I use VLC, the picture is magical!
On 3/14/08, Todd Ignasiak <todd.ignasiak at gmail.com> wrote:
> On Fri, Mar 14, 2008 at 1:15 AM, Monkey Pet <monkeypet at gmail.com> wrote:
> > I think the difference between your setup and mine is that I am trying
> > to playback 1080i shows on a 1080 resolution 1920x1080, while you are
> > using a 720p resolution.
>
>
> There was a change made in 0.21 to help the 1080p scaling issues. I
> tested it on a 1920x1200 iMac, and it solved the issue there.
> Unfortunately it appears it didn't solve the issue across the board.
>
> If you turn off the "Scale as necessary" option in playback settings,
> does it help your 1080i playback? If so, the root source is probably
> the same as what we were seeing before.
>
>
> > On Fri, Mar 14, 2008 at 1:06 AM, Todd Ignasiak <todd.ignasiak at gmail.com> wrote:
> > > On Thu, Mar 13, 2008 at 11:25 PM, Monkey Pet <monkeypet at gmail.com> wrote:
> > > > 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.
> > >
> > > For me, 1080i works fine with software decoding. I only ran into
> > > problems when trying to do 1080i with the hardware accelerated video
> > > playback.
> > >
> > > What video profile settings are you using? I use a custom profile, set to:
> > >
> > > Resolution > 720p: Standard Decoder and Quartz-blit renderer and
> > > Linear Blend deinterlacer.
> > > 720p: "Mac hardware acceleration" Decoder and quartz-accel renderer
> > > Res < 720p: Standard Decoder + Quartz-blit renderer + Linear Blend.
> > >
> > >
> > > I am running on a 1.66GHz Core Duo Mini with 1GB RAM, displaying on a
> > > 1280x768 DLP Projector connected via DVI->HDMI.
> > >
> > >
> > >
> > > > 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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> > > > > >
> > > > >
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