[mythtv-users] PVR 250 Interlaced Playback issues on mythfrontend

[Mark Edwards]

hey Joe,

having the same issue with DVB playback. I have had a look at the
possibility for adding deinterlacing, and xine has a nice deinterlacer that
could possibly be slotted in without too much effort... havn't quite got a
round tuit yet though..

Mark
----- Original Message -----
From: "Joseph Kennedy" <josephk at mac.com>
To: <mythtv-users at mythtv.org>
Sent: Thursday, September 18, 2003 2:37 PM
Subject: [mythtv-users] PVR 250 Interlaced Playback issues on mythfrontend


> Hey all,
>
> I was wondering if anyone else is having a problem with the interlaced
> recordings of the PVR250 when outputting to a TV.  I'm not talking
> about the initial jitter in playback when  changing channels, but the
> fields of the interlaced stream appearing out of order.  I've heard
> Isaac refer to it only in terms of "change the field order" or enable
> De-interlacing, but searching through the list since last night hasn't
> yielded anything else.
>
> I would like to not enable de-interlacing since it causes ghosting in
> motion, and on my tv this looks like interlacing artifacts.  Can anyone
> offer any advice? Even when it appears that the fields are in the
> correct order after 5 to 10 minutes they will go out of order and
> everything gets pretty ugly. I'm using Jitter Reduction, Experimental
> A/V, and Extra Audio Buffering.
>
> I am running Mandrake 9.1 on a separate backend and frontend.  The
> backend has 2 PVR 250's and appears to capture perfectly even when
> running at the same time.  It's a P3 800 with 650MB of PC133, an 8GB
> Seagate set to master with a 120GB WD set to slave.  Buffer goes to the
> WD as well as all recordings.  DMA is on, and the noatime flag is set
> for the WD.  My mpg_buffers = 50, and I'm capturing at 5.5Mbit/sec with
> peak at 6.5, resolution set to 720x480, stream_type =dvd,
> dnr_mode=3,dnr_spatial=2,dnr_temporal=4.
>
> My frontend is an XP2100 with KD7 mobo, 1GB of PC2700, a Geforce 3
> Ti200 (4363 drivers) running only TV out with nvtv, flicker=0,
> sharpness=50, res=640x480 ... 20GB 7200-RPM WD and an 80GB Maxtor
> 7200-RPM. I'm using over-scan with nvtv, mythfrontend niced to -15, all
> under WindowMaker. SB Live for sound, onboard disabled.
>
> Any advice would be greatly appreciated.  Maybe I need to patch for
> better de-interlacing rather than relying on myth to output the
> original fields/frame in proper time?
>
> --Joe
>
>


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