Re: [GnomeMeeting-list] Newbie UPDATE: slow video

["Paul Nixon" <khobar95 hotmail com>]

Hi Damien,

I haven't tried GM to GM because I am unable to compile it. Says there is a
syntax error in one of the include files. You suggested a conflict in files
since there are multiple versions, but I'm not sure where to start deleting
stuff. So I've kinda put that on hold a bit and decided to test the NM -> NM
connection over the same LAN.

Hmm, I'm just full of the joys, aren't I?

For settings, I have tried the following:

Jitter Buffer Delay:    50
Small video window
NTSC
Transmitted quality:    1 2 10 15 20
Updated blocks:        1 5 25 99
Receive quality:        3

Transmitted quality of 20 seems to get about 3 fps on the NM receive side,
but the picture is highly colored with small RGB squares. Updated blocks of
99 resulted in the least blockiness, as far as I could tell. Picture on the
receive machine tends to just stop updating even though audio still comes
through.

As far as a log file, is there such a thing I could look at? I checked the
network card using ifconfig eth0 and there were no dropped frames, no
collisions, no apparent network problems at all. If anything I noted that
for just a few minutes of video, over 30MB of data was transmitted. Does
that sound correct?

Paul


----- Original Message -----
From: Damien Sandras <dsandras seconix com>
To: <gnomemeeting-list gnome org>
Sent: Wednesday, December 12, 2001 12:44 PM
Subject: Re: [GnomeMeeting-list] Newbie UPDATE: slow video


Btw, which settings are u using?
Have u tried to change them?
Have you tried from GM to GM?
Are you using iptraf or something like that?

le mer 12-12-2001 à 20:28, Paul Nixon a écrit :
> Well, I'm not sure what to say at this point. I've just completed some
> testing between Linux GM and MSNM and I'm really puzzled. Please
understand
> this is NOT a complaint or rant or anything like that.
>
> I have GM installed from RPMs on a Mandrake 8.0 system. Capture card is a
> Hauppauge WinTV PCI. I'm running Gnome with X4.0.3 and an ATI Radeon PCI
> card. System is a 1.2GHz Athlon Tbird.
>
> I have Netmeeting 3.0 installed on two other machines, an 800MHz TBird
with
> GeForce2 MX AGP and another 1.2GHz Tbird with a Kyro II AGP. Both of these
> systems run Win98SE, but the 800MHz Tbird also has Mandrake 7.2 installed
> with a 2.4.3 kernel.
>
> Here are the results:
>
> GM -> NM. Good quality audio, poor quality video until the blocks
disappear.
> After blocks are filled in the video quality is fair at best. Any sudden
> movement in the source frame causes breakup. Max 2fps.
>
> NM -> GM. Fair quality audio, fair quality video. Blockiness in middle of
> frames. GM locked up after about 10 seconds consistently. Approx 4fps.
>
> NM -> NM. Excellent quality audio, excellent quality video. In fact the
> video was full motion all the time with quality almost as good as the
> original with only some blotchyness associated with compression.
>
> All of this was tested over a 100mb LAN with the systems no more than 8
feet
> apart in the same room. No external transmission (direct IP link).
>
> So what in the heck is going on here? Is there some compression algorithm
I
> have to add to the Linux machine? Is it possible there's some weird
problem
> with resizing the video window or something? I know when I ran Kwintv I
was
> unable to get smaller than 320x240 without some odd things happening
(would
> resize vertical but not horizontal).
>
> This is just weird.
>
> BTW, the 1.2GHz Linux system has not had any modifications done to it.
> Straight install from the Mandrake CD.
>
> Paul
> _______________________________________________
> Gnomemeeting-list mailing list
> Gnomemeeting-list gnome org
> http://mail.gnome.org/mailman/listinfo/gnomemeeting-list
>


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