Re: Better Video Codecs - was Re: [GnomeMeeting-list] ideas..

[Malcolm Caldwell <malcolm caldwell ntu edu au>]

I certainly accept the points made in this email.

I fully appreciate that the developers of opal, pwlib and gnomemeeting
all contribute great work to the projects.  I am sure if anyone involved
had the time then they would have implemented video codec plugins by
now.  If it seems like I was complaining, I am sorry.

Anyway, just a quick comment...

On Fri, 2005-12-16 at 09:41 +1100, Craig Southeren wrote:
> On Thu, 15 Dec 2005 15:36:04 +0930
> Malcolm Caldwell <malcolm caldwell ntu edu au> wrote:
> 
> > Just on the the whole 'better video codecs' thing.
> > 
> > I will be brutal and say that gnomemeeting will only every be a 'voip
> > client that can also basic video' until there are better video codecs.
> > h263 at the last, h264 to be a bit more modern, and theora to be 'open
> > source'
> > 
> > We cannot afford to wait until Craig and Robert implement video plugin
> > codecs.  This might never happen.
> 
> Please correct if I am wrong, but I don't think that anybody is holding
> back on coding video plugins because they think I am doing them.

I think gm is holding back on implementing h263 via the current
mechanism, waiting for the video plugins.

Given the status of software patents in Europe, why not include this
now?

> If anybody is holding back, then I recommend they don't wait. If they
> feel they have the skills and the time, then they should go right ahead
> and do it.
> 
> Having said that, I am fully intend to implement video codec plugins as
> soon as I can (unless someone beats me to it) and there is a chance that
> this could be started soon if certain negotiations proceed as I hope.
> 
> In the mean time, I will be doing stuff to OpenH323/OPAL in my spare
> time, much like Damien and the other contributors. And occasionally, I
> will be able to spend part of my work day adding code to OpenH323/OPAL
> for other people. 
> 
> > While on the subject: gstreamer is gaining rtp packetisation abilities.
> > Perhaps gstreamer could help implement codecs in gnomemeeting?  Or
> > perhaps even video codecs?  gstreamer is lgpl.
> 
> The LGPL license introduces some challenges when integrating with
> OpenH323/OPAL, but these are not insurmountable. This could be an
> interesting direction to follow. 
> 
> However, the RTP packetisation is only a part of the story. The creation
> of valid and inter-operable H.323 and SIP capability definitions is a
> large part of the work, as is solving the licensing issues (as mentioned
> before).
> 
>    Craig
> 
> -----------------------------------------------------------------------
>  Craig Southeren      craigs postincrement com / craigs voxgratia org
> 
>  Phone:  +61 243654666      ICQ: #86852844
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> 
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