[mythtv-users] Correcting overscan in MythVideo/mplayer
korebantic at gmail.com
Fri Dec 9 12:08:00 EST 2005
$ mplayer -version
MPlayer 1.0pre7try2-3.2.3 (C) 2000-2005 MPlayer Team
Interesting that you can scale to values I can't. Maybe it has
something to do with the PVR350 Xdriver. Just for kicks I'm going to
test the multiple of 8/16 theory out.
I'll give xine a try -- I like the idea of being able to zoom via the
remote control vs having to setup config files with mplayer. Thanks
for the tuning tip, I'll give it a shot and see if quality improves.
On 12/9/05, Ian Armstrong <mail01 at iarmst.co.uk> wrote:
> On Friday 09 Dec 2005 15:20, Keith C wrote:
> > On Dec 9, 2005, at 8:54 AM, korebantic wrote:
> > > mplayer -fs -display :0 -quiet -vf scale=520:-2,expand=640:480:45:40 \
> > > -zoom -vo xv /var/video/mythvideo/Lunar_Bleach_58.avi
> > >
> > > Does the trick. I'm not sure I really understand resolutions very
> > > well. For example, scale=540:-2, along with other resolutions,
> > > completely garbled the image. Do you know how to determine "valid"
> > > resolutions without having to resort to trial and error?
> > Yes, for mplayer they have to be divisible by 8, it looks like (I
> > thought it was 16, but the fact that 520 works means it must be 8).
> I can play that file without problems using a size of 540 with Mplayer
> 1.0pre7. It also works with 541, 542 & 543.
> My own preference is to use xine for playback and map the zoom controls to the
> remote. That way I can still overscan, but tweak the size to ensure the subs
> are visible.
> btw, for fansubs (or any other progressive video) you may find that changing
> the yuv mode can improve video quality when scaling. You can do that with the
> ivtvctl -d /dev/video16 --set-yuv-mode=mode=1
> The default mode is 0 (interlaced), so you'll probably want to reset it after
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