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OpenDivX digest, Vol 1 #44 - 2 msgs



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Today's Topics:

   1. OpenDivX Encoder -> OpenDivX Daily Forums Digest (Darrius "Junto" Thompson)
   2. General Development Discussion - All Projects -> OpenDivX Daily Fourm Digest (Darrius "Junto" Thompson)

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Message: 1
Date: Tue, 20 Mar 2001 18:13:55 -0800
From: "Darrius \"Junto\" Thompson" <[email protected]>
To: <[email protected]>
Subject: [OpenDivX] OpenDivX Encoder -> OpenDivX Daily Forums Digest






Topic:		Use the power of GPU's??
Author:		Matej
Posted:		 2001-03-20 06:15
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The idea is very good, but a little too early (maybe just for me). The
new Geeforce3 car encode *.AVI files in REALTIME. So i guess that the
cpu shouldn't be so occupied with enconding when the GPU is in a lot of
help.


Topic:		Use the power of GPU's??
Author:		Brians256
Posted:		 2001-03-20 14:37
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Ummm... I think you misread the feature set for the GeForce 3.  Unless I
am sorely mistaken, there is no hardware support for encoding video in
any of the GeForce chips.  The Pentium III and the Athlon (pretty much
all speed grades) can create AVI's in real-time from an uncompressed RGB
frame-grab stream.  They just can't do high-end compression that
produces high-quality at the same time as low bit-rate.

For example, take a look at the HuffYUV codec home page.  If I remember
correctly, a P3-266 can do real-time capture to AVI with that codec
because it uses so little CPU.  You just need a fast hard disk.


Topic:		OpenDivX Variable Bitrate Encoding
Author:		duartix
Posted:		 2001-03-20 15:08
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Forgot to say what your home page is...


Topic:		OpenDivX Variable Bitrate Encoding
Author:		magelan
Posted:		 2001-03-20 15:38
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I don't know if it's just me but I guess there are people out there who
have at home more that 1 PC. How about creating a server an a client
thing to allow some processing to take place on a client PC? Something
not too much data intensive but CPU intensive?


Topic:		movie
Author:		Derks
Posted:		 2001-03-20 15:51
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`I mist have a code


Topic:		Sorenson MPEG-4 encoder
Author:		Zed Mister
Posted:		 2001-03-20 16:38
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smanders,

Wow, very nice to see actual Sorenson engineers roaming in these forums.
I haven't actually had a chance to try out the Sorenson MPEG-4 codec,
all I've seen are the specifications, which seem rather impressive.
Would there be any chance at all of e-mailing me the encoder/decoder?
If not, I understand.  If so, my e-mail is <a
href=3D"mailto:[email protected]";
target=3D"_new">[email protected]</a>

I have done some comparisons between Sorenson Video 3 and MS MPEG-4 v3
(DivX 3.11) and from what I've seen, Sorenson offers better quality at
bitrates higher than about 1500, but not below that.  Framerates suffer
at bitrates below 1500 when content is encoded using Sorenson Video 3,
whereas this is not the case with MS MPEG-4 v3.

In any case, I could love to be able to test out the Sorenson MPEG-4
codec.  If you can help me do that, I would appreciate it.

Thanks for the reply.



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Message: 2
Date: Tue, 20 Mar 2001 18:14:13 -0800
From: "Darrius \"Junto\" Thompson" <[email protected]>
To: <[email protected]>
Subject: [OpenDivX] General Development Discussion - All Projects -> OpenDivX Daily Fourm Digest





Topic:		New vod software?
Author:		RottenBambi
Posted:		 2001-03-19 23:06
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I just found a thing called SiDTV (Streaming Internet Digital TV) and it
looks like it might be good and it hopes to
        use the 3ivx or whatever codec is most advanced in the next
month or two once released the website is <a
href=3D"http://sidtv.virtualave.net"; target=3D"_blank"
target=3D"_new">http://sidtv.virtualave.net</a>
        check it out there first beta should be released soon after 3ivx
d3 or the next couple project mayo mac releases


Topic:		codecs for dummies....
Author:		CancunMx
Posted:		 2001-03-20 08:38
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i'm kinda new to the codec arena.  i'm familiar with getting and playing
asf/avi movies on windows (wmp). haven't been able to get any of them to
play under linux yet.  Is there some sort of codec for dummies document
to introduce people to what the software does? it sounds like i take a
mpeg-2 format file (.mpg) and run it through this encoder (codec) to get
a (smaller file size) avi format movie.  Then, my movie player (wmp or
whatever) will use the same codec when i want to play that particular
avi file? if this is the case (and i'm really speculating here), then is
there something in the avi file which shows which codec was used to
encode it?  can I decode an avi back to mgp format (mpeg-2?) then encode
it using my favorite encoder?  sorry for so many questions, i'de just
like to really learn more about all this. how to use it and how it all
works.


Topic:		open divx =3D too dark
Author:		Tommy Carrot
Posted:		 2001-03-20 14:39
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I've experienced this issue too. The colors usually seems to be
prettier, but on dark scenes - no matter the monitor's brighness is on
max - the details are disappears, gone to black, while on Divx 3.11
those are just fine.=20


Topic:		open divx =3D too dark
Author:		wanton
Posted:		 2001-03-20 15:07
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This happens to me as well with opendivx and divx but i know what's the
problem it's actually my graphics driver for nvidia geforce card. seems
that my video overlays are too dark when i use overlay setting in nvidia
drivers to set brigtness to 133% then all look ok. I'm using windows
2000.


Topic:		Video ... no audio??
Author:		NewB
Posted:		 2001-03-20 16:31
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i'm having the reverse of most of your problems... i'm getting video
without audio

anyone know of a way to fix this?




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