DVD-Software.info

[Guest]

Half a dozen divx / xvid files from various sources play OK on a
computer, but look blurry in my Samsumg HT-DS400. In GSpot they seem
to have nothing in particular in common. This same set top player does
not play Qpel divx's.

What's my best course of action? Is it to save them to a lossless full
video format in Virtual Dub, then re-encode them? And which divx or
xvid codec should I use to re-encode? The final output device is an
ordinary TV connected with composite cables. I don't need to have
quality better than a TV can display.

TIA.

--
Jonathan Berry

[Guest]

Sorry, I guess that I was imprecise with the word blurry. In the set
top player, all the videos affected have a halo of pixels in a wrong
colour around discernable shapes. When there is a bit of action or
movement in the scene, it is often impossible to figure out what the
picture should look like. At very best, the picture is blotchy and
weird looking. At worst, simply unwatchable.

By contrast, looked at in a PC, these videos are perfectly normal and
watchable, even in full screen. Audio comes through unaffected in
either case.

I have seen this effect reported before at one of the video help-type
sites, and a replier said it was either GMI (?) which is not reported
by Gspot to be used in any of these clips, or a problem with a codec
used in the original encoding, or a problem of using codecs in the
"wrong" order.

So, yes, there is a problem with the original encoding ... BUT they are
perfectly playable on a computer.

Resolutions are not the same. But just for completeness, here they
are:
608x256
480x208
320x240
656x496
608x320
560x304
624x336
that's seven different DIVX files with seven different resolutions.

Thanks in advance for any answers to my question.


Kievlar wrote:

[Kievlar]

Most likely the problem is with the original encoded video so re-encoding
won't fix it. You say it's not blurry when you play it on a PC. Are you
playing it full screen? What is the resolution of the clips you have a
problem with?

Kievlar (Larry)

<jberry@islandnet.com> wrote in message
news:1125587095.544421.186740@f14g2000cwb.googlegroups.com...

[Squash]

jberry@islandnet.com wrote in
news:1125587095.544421.186740@f14g2000cwb.googlegroups.com:

[Guest]

Squash wrote:

[Guest]

[Squash]

[Guest]

Aaaah! I should have remembered: in the fast-developing world of
video, beta versions are the ones to use. So I downloaded AutoGK 2.18
beta. Doom9 has even dropped the word "beta" from its description of
AutoGK. Thanks for the update.

I had a clip which ran OK in the set-top player, except that the bottom
third of the screen would blip about once every couple of seconds. I
ran it through AutoGK, with a re-encode setting of 1/3 of a DVDR; in
the "Advanced Options" Auto Width and Xvid, the defaults. The
resultant file in the Samsung set-top still had the blips. In
addition, it had the oft-described problem where there's a halo of
wrong colours, especially in motion scenes.

So I have a couple of questions:
Have you tried your method with 2.18 ?
When you use the Target percentage, what percentage do you set it at?
The default of 75% or something else?
When you run the AutoGK-processed file through mpeg4modifier, are the
problems already gone, or does mpeg4modifier remove them?

Meantime, I'm having reasonable success using VirtualDub 1.6.10 for
similar purposes, though each run takes a lot more clicking to set up.
I save the runs as "jobs" and use the freeware System Scheduler 3.47
from splinterware to process the runs at night. Doing a quick (takes a
few hours on a 900 MHz P3) re-encode of the same clip with divx6 at
1000 in Home Theater setting, two pass, gave a quite acceptable result
(on a 27" TV) with a file size less than half the original.

--
Jonathan Berry