OK, so a number of people have advised me to use DivX instead of any of the
other various AVI codecs I have... I would just like to say that I have now
tried this, and it appears that for the most part, DivX gives lower quality
with larger filesizes when compared to MPEG-1. (I'm sure someone's going to
come and tell me I've got it all wrong, but that's what I found.)

Of course, DivX has that many parameters you can adjust, it's hard to tell
what's going on... (Not like it tells you what any of it means or anything!)
But anyway, initially the results were aweful. Then I tried turning up the
maximum bitrate, and the quality improved. After a while though, turning it
up made no further difference - either to the quality or the filesize. I
suppose you have to do something to the other parameters or some such...

Then again, TMPGEnc has more parameters that you can shake a wet fish at!
But anyway...

Also, a lot of folks have said something about "MPEG-4 codecs"... Where the
heck do you find one of those? (Bearing in mind that I have no idea how the
codecs I *do* have got onto my system...)

Thanks.
Andrew.

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Andrew Coppin <orp### [at] btinternetcom> wrote:
> OK, so a number of people have advised me to use DivX instead of any of the
> other various AVI codecs I have... I would just like to say that I have now
> tried this, and it appears that for the most part, DivX gives lower quality
> with larger filesizes when compared to MPEG-1. (I'm sure someone's going to
> come and tell me I've got it all wrong, but that's what I found.)

  Then all those people sharing videos in the net should promptly switch
to MPEG-1 instead of DivX... ;)

  Do you really think they are not using MPEG-1 for a good reason?-)

> Also, a lot of folks have said something about "MPEG-4 codecs"... Where the
> heck do you find one of those? (Bearing in mind that I have no idea how the
> codecs I *do* have got onto my system...)

  DivX is one. You can also try Xvid (http://www.xvid.org/)

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -

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In article <3f832552$1@news.povray.org> , "Andrew Coppin" 
<orp### [at] btinternetcom> wrote:

> Of course, DivX has that many parameters you can adjust, it's hard to tell
> what's going on... (Not like it tells you what any of it means or anything!)

If you post a screenshot of the settings you used to povray.binaries.images
and ask for help finding good settings, I am sure somepeople will be able to
help you.  Or post a short animation povray.binaries.animations showing the
problems.

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

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On Tue, 7 Oct 2003 21:40:04 +0100, "Andrew Coppin" <orp### [at] btinternetcom>
wrote:
> DivX gives lower quality
> with larger filesizes when compared to MPEG-1.

DivX has highier system requirements than MPEG-1 which I myself don't like.
At home I still poving actively with W95 on PII233 because that's what I own
at home while http://www.divx.com/divx/system_requirements.php .

ABX

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In article <3f832552$1@news.povray.org> , "Andrew Coppin" 
<orp### [at] btinternetcom> wrote:

> Also, a lot of folks have said something about "MPEG-4 codecs"... Where the
> heck do you find one of those? (Bearing in mind that I have no idea how the
> codecs I *do* have got onto my system...)

They of course came with your operating system.  How else could they have
appeared there?  There are not little wizards that let appear codecs on all
computers at the same time by magic.  It would be kind of difficult ;-)

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

Post a reply to this message

In article <3f832552$1@news.povray.org> , "Andrew Coppin" 
<orp### [at] btinternetcom> wrote:

> OK, so a number of people have advised me to use DivX instead of any of the
> other various AVI codecs I have... I would just like to say that I have now
> tried this, and it appears that for the most part, DivX gives lower quality
> with larger filesizes when compared to MPEG-1. (I'm sure someone's going to
> come and tell me I've got it all wrong, but that's what I found.)

Most likely there is a problem with the source material you have then.  It
could simply be unsuitable for modern compression algorithms.  I have
created a page that demonstrates this very well:

<http://mac.povray.org/support/video/>

NOTE: It will take at least another hour *after* I made this post to upload
all files to povray.org as I only have a ADSL connection with a 16 KByte/s
(128 KBit/s) upstream and some of the files are rather huge.  So please
don't tell me that some files are corrupted within the next two or so hours
- they simply didn't arrive on the server yet! :-)

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

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On Wed, 08 Oct 2003 17:09:32 +0200, "Thorsten Froehlich" <tho### [at] trfde>
wrote:

> There are not little wizards that let appear codecs on all
>computers at the same time by magic.  It would be kind of difficult ;-)

Are you sure about this? Mr Gates says he employs lots of wizards :-}

Regards
        Stephen

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In article <trb8ov4jmskjs7gofdq5e8m49q086g3km1@4ax.com> , Stephen McAvoy 
<McA### [at] aolcom>  wrote:

> Are you sure about this? Mr Gates says he employs lots of wizards :-}

Well, all the little wizards he has hired are busy magically getting your
money out of your pocket; they have no time to give you anything you want in
return.  There are however a few little evil wizards busy getting software
on your computer you do not want, but they only pretend to be from
Microsoft...  ;-)

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

Post a reply to this message

> > Also, a lot of folks have said something about "MPEG-4 codecs"... Where
the
> > heck do you find one of those? (Bearing in mind that I have no idea how
the
> > codecs I *do* have got onto my system...)
>
> They of course came with your operating system.  How else could they have
> appeared there?  There are not little wizards that let appear codecs on
all
> computers at the same time by magic.  It would be kind of difficult ;-)

Well... sometimes it automatically downloads codecs for things... (It did it
just the other day in fact...) But that was for MediaPlayer... Hey, what do
I know? :-)

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> > Of course, DivX has that many parameters you can adjust, it's hard to
tell
> > what's going on... (Not like it tells you what any of it means or
anything!)
>
> If you post a screenshot of the settings you used to
povray.binaries.images
> and ask for help finding good settings, I am sure somepeople will be able
to
> help you.  Or post a short animation povray.binaries.animations showing
the
> problems.

OK, I might give that a go a bit later...

Thanks.
Andrew.

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