[Asterisk-video] H.264 video calling, conferencing and video playback within Asterisk

[Emmanuel BUU]

Nigel Dallard a écrit :
> Hi there,
>  
> I'm looking for a solution for a fully-featured video-enabled video
> telephony and information provision system. I need to be able to have:
> - one-to-one video calls between client end-points
>   
Yes
> - a queueing system for a "helpdesk/reception", with the ability for
>   the receptionist to place video calls on hold for pick-up by
>   consultants
>   
Yes
> - the ability to have multi-way video conferences
>   
This is tricky. We use app_conference here but its only for "switched" 
video conferences where people can see only one video and select it with 
DTMFs.
If you need video mixing in H.264, you need to be aware that it is very 
demanding in terms of CPU. Sergio has a videomixer but working in H.263 
not H.264.
We are testing the MCU from Orange Labs that has this and for the 
moment, the results in H.264 are disapointing. There is a great deal of 
tuning to be done before
any solution would work smoothly. Sergio mentionned (and I agree with 
him) that any serious and scalable solution for H.264 video conferencing 
should be based
on dedicated hardware.

> - the ability for callers to be connected to a menu-driven "video on
>   demand" system, with at least basic pause/play/fast-forward/rewind
>   control of the video playback
>   
That could be done with some coding.
>  
> The client devices use H.264 video encoding and G.711/Speex audio
> coding.
>   
Which devices?
>  
> Is this something that Asterisk would be able to provide? I've been
> reading web-sites, wikis and forums, and playing around with a trial
> installation for over a week now but get the feeling that this is, at
> the very least, at the cutting edge of what Asterisk can do, or possibly
> beyond its current capabilities. Neither myself nor anyone else working
> on this project has anything more than very basic programming skills,
> but do have much knowledge and experience of compiling, installing and
> configuring open-source software. Am I wasting my time, or should I
> continue to persevere? If the latter, could anyone provide me some
> pointers?
>  
> Thanks in advance,
>  
> Nigel
>  
>  
> ---------------------------------------------
> Nigel Dallard
> Principal Technologist
> Advanced Digital Institute
> The Waterfront
> Old Mill Lane
> Saltaire
> BD17 7EZ
> United Kingdom
> +44 (0) 1274 535 220 (office)
> +44 (0) 7940 321 173 (mobile)
> http://www.adi-uk.com 
> ---------------------------------------------
>
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