Action Videos Rendering

00christian00 · **Joined:** Wed Dec 12, 2007 5:30 pm **Posts:** 250

What you see is "screen tearing" and has nothing to do with bitrate.
Basically to speed up screen update the player continuosly update the screen without checking anything.
To avoid this there is a thing called VSYNC,that basically mean that a device must wait the VSYNC signal that tell the software that the previous screen update has finished and it can start the next update of screen.
If they don't wait for VSYNC then you get screen tearing because the screen is still updating the previous frame.
This happen because lcd screen and the cpu works in asynchronous mode,with the screen continuosly refreshing itself.

rich00 · **Posted:** Wed Dec 31, 2008 6:53 pm

Thanks, for the explaination and yes it occured regardless what bitrate I chnaged it too. So is the VSYNC addressable in the OS 81 ?

Moe · **Posted:** Wed Dec 31, 2008 10:33 pm

Rich, where did you get the video that your are trying to run on the OS-81? I've never tried a vid downloaded from the net. Everything I put on my OS-81 are converted from DVDs and there are no tearing effects.

rich00 · **Posted:** Thu Jan 01, 2009 5:09 am

Moe, it's occuring with all video. I mainly record tv shows from my DVB usb stick then convert them. Anything is a couple of dead pixels
!! One is right in middle of the screen ! Anyone have a similar experience.

rich00 · **Posted:** Thu Jan 01, 2009 5:32 am

Moe, what encoder software are you using ?

rich00 · **Posted:** Thu Jan 01, 2009 5:58 am

Actually the screen has a couple of " stuck pixels" as showing constantly white and not black as a dead pixel. Are these fixable ?

the803 · **Posted:** Thu Jan 01, 2009 6:59 am

Hey mate,
Experiencing some REAL problems with viDrop with your preset for the OS-81.
When I select a file, it just blinks the DOS screen and exits and my source file ends up being about 12KB!!!

Lost a few AVI files just now..

Edit:- Again, a stupid problem. No suffix for the converted files. Fixed.

ops:

Moe · **Posted:** Thu Jan 01, 2009 11:02 am

rich00 wrote:

Moe, what encoder software are you using ?

I'm using Any Video Converter Free. Seems to work fine for me.

rich00 · **Posted:** Thu Jan 01, 2009 1:27 pm

Jusy tried Any Video Converter and still the same problem. I'll wait for the firmware and see if that makes a difference, if not then I'll re think whether I'll stick with the player. Considering now there is couple of stuck pixels I'm having second thoughts...

the803 · **Posted:** Thu Jan 01, 2009 9:40 pm

Is it possible to crop videos using this software?

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