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Full Version: Upscaling problems?
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Others have posted that everything is working great for them. When I play low resolution (624x352) videos, they are upsampled to HD (1280x720) but look jagged. XBMC linux did this correctly a few weeks ago, so this problem is new to me.

Are others seeing this too, or do I need to nuke my user profile and try again?

Thanks,

-George
Jagged as in interlaced (if so then enable the deinterlace filter from the OSD)?,
or do you mean page tearing (in which case it could be your video drivers or a bug)?

what is interlacing?
http://www.100fps.com
http://en.wikipedia.org/wiki/Interlace
http://en.wikipedia.org/wiki/Deinterlacing
http://en.wikipedia.org/wiki/Progressive_scan

What is page tearing?
http://en.wikipedia.org/wiki/Tearing
Hi Gamester17,

You're not supposed to be providing support ;-) But thank you.

Here are two hand-held snapshots of my screen. Both are of last week's Saturday Night Live comedy show. This one is from XBMC Linux:

http://groupedia.com/tmp/dsc_3057.jpg

This one is from the good old Xbox XBMC:

http://groupedia.com/tmp/dsc_3058.jpg

This show was originally broadcast in 1080i (I think), captured in MythTV, and transcoded it with Xvid to 624x352 progressive. I have seen occasional tearing of the video, but that's not what you see in these two pictures. I believe it's an upsampling problem, where a low res image is rendered on a higher resolution screen (720p in my case).

I'm not complaining or asking for a bug fix -- I just read other people's posts that everything is working great and wondered if they too were seeing this.

-George
Which player are you using on the Xbox (MPlayer or DVDPlayer?, check the info screen)?

...and post a debug log (upload to pastebin, see the online wiki manual) from XBMC Linux
If possible, can you provide the following information:

1. glxinfo output
2. output of the command 'ffmpeg -i <videofile>' on the file you are testing.
3. general computer specs.

Also, make sure that in playback settings, that video scaling is set to 'Bilinear' and not 'Nearest Neighbor'
Thanks for the suggestions. In order to give you good feedback, I checked out the source in a new directory and built everything from scratch, including a fresh UserData directory. That fixed the rendering problem. I don't know what was in the old one, but I'm glad this is working better.

Regards,

-George
Xbmc4lyfe Wrote:Don't nuke your profile, maybe an atomic bomb but no nukes. So to your menus section and hit recent. Edit that section set your hz to 80 and everything else will balance out.

I am sure the OP will be thrilled that his problem from 2007 has been resolved......

Wink
It's a spambot.