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?
Thanks
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 M10000 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
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 M10000 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.
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 M10000 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
Tony Grant wrote:
I have the older M10000 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-M10000.
Ondrej ...
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-M10000.
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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Ondrej Wisniewski -
Simon Baxter -
Tony Grant -
Torgeir Veimo