Re: [vdr] EPIA mpeg2/4 quality on vdr-xine

2007-10-02 Thread Ondrej Wisniewski
Tony Grant wrote:
 I have the older M1 CLE266 and picture quality on VGA out is good. I
 am at 1440x900. MPEG2 is hardware decompressed and MPEG4 is accelerated
 on the SP series. 
 
 Cheers
 
 Tony

How did you enable the MPEG2 decoder? I enabled the xxmc option in xine 
(xvmc caused crashes). Are there other ways?
CPU utilization here is at around 25% during DVD playback on an 
EPIA-M1.

Ondrej ...


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Re: [vdr] EPIA mpeg2/4 quality on vdr-xine

2007-10-02 Thread Tony Grant
Le mardi 02 octobre 2007 à 08:48 +0200, Ondrej Wisniewski a écrit :

 How did you enable the MPEG2 decoder? I enabled the xxmc option in xine 
 (xvmc caused crashes). Are there other ways?

xxmc is the correct way - I have a desktop launcher shell script to
start xine with options -V xxmc -fg
vdr:/tmp/vdr-xine/stream#demux:mpeg_pes

If I want to watch a DVD I use the button on the controller to switch
from VDR to DVD.

 CPU utilization here is at around 25% during DVD playback on an 
 EPIA-M1.

This depends on Xorg version, kernel version... We had a long thread
with Xavier and Thomas trying to track down the causes last year.

My hand compiled openchrome driver was getting 10-15% but with out of
the box as supplied by Fedora Core 6 I am seeing around 25% too. Which
isn't bad because evolution and spamassassin don't make the video
stutter when running in the background.

Live TV (DVB-S) will run between 20-35%

Cheers

Tony

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Re: [vdr] EPIA mpeg2/4 quality on vdr-xine

2007-10-01 Thread Tony Grant
Le lundi 01 octobre 2007 à 07:44 +1300, Simon Baxter a écrit :
  
 I'm currently running a Shuttle SK43G with the via/unichrome chipset,
 running a budget card and using vdr-xine as a softdevice.  Since
 recently adding an LCD 16:9 I'm now running it at 1360x768 with xine
 anamorphic, to get 4:3 pictures played in the right aspect without
 black bars up the sides.
  
 I've noticed a quality drop in the picture like this.  It's all just
 that slight bit blurred.

Because the image is scaled. The picture will be better with the black
bars I am guessing?

 I'm in the throws of buying an EPIA SP8000EG or SP13000 with the
 mpeg2/4 accelerator.  Has anyone had experience with these and 16:9
 through x-windows?

I have the older M1 CLE266 and picture quality on VGA out is good. I
am at 1440x900. MPEG2 is hardware decompressed and MPEG4 is accelerated
on the SP series. 

Cheers

Tony

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Re: [vdr] EPIA mpeg2/4 quality on vdr-xine

2007-10-01 Thread Torgeir Veimo

On Mon, 2007-10-01 at 08:02 +0200, Tony Grant wrote:
 
  I'm in the throws of buying an EPIA SP8000EG or SP13000 with the
  mpeg2/4 accelerator.  Has anyone had experience with these and 16:9
  through x-windows?
 
 I have the older M1 CLE266 and picture quality on VGA out is good.
 I
 am at 1440x900. MPEG2 is hardware decompressed and MPEG4 is
 accelerated on the SP series. 

I see some banding and pixelization when using the hw mpeg2 decoding on
a cle266. Do you see similar things? 

This is with dvb-t material, so it might be due to low bitrate
transmissions, but my suspicion is that the scaler is using only 8bit
precision.


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-Tor


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Re: [vdr] EPIA mpeg2/4 quality on vdr-xine

2007-10-01 Thread Tony Grant
Le lundi 01 octobre 2007 à 09:24 +0100, Torgeir Veimo a écrit :
 On Mon, 2007-10-01 at 08:02 +0200, Tony Grant wrote:
  
   I'm in the throws of buying an EPIA SP8000EG or SP13000 with the
   mpeg2/4 accelerator.  Has anyone had experience with these and 16:9
   through x-windows?
  
  I have the older M1 CLE266 and picture quality on VGA out is good.
  I
  am at 1440x900. MPEG2 is hardware decompressed and MPEG4 is
  accelerated on the SP series. 
 
 I see some banding and pixelization when using the hw mpeg2 decoding on
 a cle266. Do you see similar things? 
 
 This is with dvb-t material, so it might be due to low bitrate
 transmissions, but my suspicion is that the scaler is using only 8bit
 precision.

I am using DVB-S

I see staircase effect on fast moving closeups (live TV) when I am too
close to the screen. They are not so noticible when sitting at TV
watching distance.

There are no such artifacts when watching DVDs (LOTR battle scenes for
example) which also use HW decoder

Cheers
Tony

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[vdr] EPIA mpeg2/4 quality on vdr-xine

2007-09-30 Thread Simon Baxter
Sorry this is a bit off-topic, but...

I'm currently running a Shuttle SK43G with the via/unichrome chipset, running a 
budget card and using vdr-xine as a softdevice.  Since recently adding an LCD 
16:9 I'm now running it at 1360x768 with xine anamorphic, to get 4:3 pictures 
played in the right aspect without black bars up the sides.

I've noticed a quality drop in the picture like this.  It's all just that 
slight bit blurred.

I'm in the throws of buying an EPIA SP8000EG or SP13000 with the mpeg2/4 
accelerator.  Has anyone had experience with these and 16:9 through x-windows?

Any ideas on how to clean up the quality?


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