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

[Emmanuel BUU]

Nigel Dallard a écrit :
> Emmanuel BUU wrote :
>
>   
>>> - 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.
>>     
>
> I'm not looking for anything very sophisticated. Each participant only
> needs to see video from one source at any one time, but that source
> should ideally either be selected by the moderator of the conference, or
> automatically depending on who is talking.
>   
Have a look at app_conference, this fits your need.
>   
>>> - 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.
>>     
>
> Hmm. This is not looking so good. Neither myself nor anyone else working
> on this project has anything more than very basic programming skills.
>   
Yes but Sergio, authot of app_mp4 has some coding skills ... If there is 
a budget for your project. You might ask him to improve app_mp4.
>   
>>> The client devices use H.264 video encoding and G.711/Speex audio 
>>> coding.
>>>       
>    
>   
>> Which devices?
>>     
>
> A varient of http://www.redembedded.com/design/products/vptv400/
>
> Cheers,
>
> 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
> ---------------------------------------------
>
> _______________________________________________
> --Bandwidth and Colocation Provided by http://www.api-digital.com--
>
> asterisk-video mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-video
>
>   

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-video/attachments/20090526/f9eae3e1/attachment.htm