[AG-TECH] Injecting DVD or avi/mpeg4 videos into an AG session

[Natalia Costas]

Well, VLC it is a pretty useful program, it can receive a stream from 
the network or from a file in several video/audio formats, unicast or 
multicast, and it can recast it over multi or unicast (www.videolan.org).

Then:

- The teacher has a laptop with VLC and his/her audio/video files, he 
push stop, pause and play buttons. Audio and video is played locally (if 
it is necessary, tough he will see the video on the large screen as 
well) and recasted to a multicast group on this "presenter laptop" (VLC 
can do both tasks at the same time).
- The AG nodes open VLC on the display machine, the audio output of the 
display machine is connected to the Clearone XAP, so it can be heard on 
the room the audio of the video and the video itself is placed on the 
large format screen.

Hope this helps a bit :)))


George Estes escribió:

>Natalia,
>
>  Could you give a few more details on how you set this up?  Especially the streaming to AG nodes using VLC.
>
>Thanks,
>George
>
>At 09:04 AM 6/28/2006 +0200, Natalia Costas wrote:
>
>  
>
>>Tough it is not integrated, we use VLC sometimes to recast videostreams or streaming to the AG nodes. It is a little bit tricky as you need to bridge it manually if any site dont have multicast support (it is not our case so far).
>>
>>
>>Jason Bell escribió:
>>
>>    
>>
>>>G'day all
>>>
>>>I had a personal email asking how I inject a DVD or avi/mpeg4 videos
>>>into an AG session.  I thought my reply might interest a few, so I
>>>thought I would also send my reply to the AG mailing lists as well.
>>>
>>>I have the ability to inject DVD/Multimedia streams into the Access Grid
>>>by:
>>>
>>>*       Using an Audio/Video switcher which connects the inputs from a
>>>PC, DVD and Document Camera.
>>>
>>>*       The audio output from the AV switcher goes into the genter
>>>(XAP400) as an input, which I then output to my speakers inside my AG
>>>and output to the audio node of the AG, which then transmits to external
>>>sites.
>>>
>>>*       The video output I connect to the capture card within the Video
>>>Capture Node, as I would any camera.
>>>
>>>This allows me to inject AV from a PC, DVD or Document camera into the
>>>AG as an optional stream.
>>>
>>>The only caveat is that we are only using H261 at present, therefore the
>>>video stream can be a bit ordinary. 
>>>I hope this may be of some use to others.
>>>
>>>Cheers,
>>>Jason.
>>>
>>>--------------------------------------------
>>>
>>>Jason Bell, B.I.T.
>>>B. Info. Tech. (Honours) Student
>>>
>>>Network Engineer
>>>Information Technology Division
>>>Central Queensland University
>>>
>>>High Performance Computing Support Officer
>>>Central Queensland University
>>>
>>>Research Assistant to the Nonlinear
>>>Intelligent Systems Research Group Faculty of Informatics & Communication
>>>Central Queensland University
>>>
>>>E-mail : j.bell at cqu.edu.au
>>>Phone : 07 4930 9229
>>>
>>>--------------------------------------------
>>>
>>>Patience is a virtue.
>>>
>>>But if I wanted Patience,
>>>I would have become a Doctor.
>>>
>>>--------------------------------------------  
>>>
>>>
>>>
>>>      
>>>
>>-- 
>>====================================================
>>Natalia Costas Lago
>>Técnico de Comunicaciones - Dpto. de Comunicaciones
>>
>>Centro de Supercomputacion de Galicia (CESGA)
>>Avenida de Vigo, s/n (Campus Sur)
>>15705 Santiago de Compostela - SPAIN
>>
>>E-mail: natalia at cesga.es
>>Tel:    +34  981 56 98 10 (ext. 237)
>>Fax:    +34  981 59 46 16
>>Web:    http://www.cesga.es/
>>====================================================
>>    
>>
>
>
>  
>


-- 
====================================================
Natalia Costas Lago
Técnico de Comunicaciones - Dpto. de Comunicaciones

Centro de Supercomputacion de Galicia (CESGA)
Avenida de Vigo, s/n (Campus Sur)
15705 Santiago de Compostela - SPAIN

E-mail: natalia at cesga.es
Tel: 	+34  981 56 98 10 (ext. 237)
Fax: 	+34  981 59 46 16
Web:	http://www.cesga.es/
====================================================