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From "Irina Arkhipets (JIRA)" <>
Subject [jira] [Updated] (OPENMEETINGS-550) GSOC: Improvements for video conferencing with limited bandwidth.
Date Mon, 11 Mar 2013 09:53:12 GMT


Irina Arkhipets updated OPENMEETINGS-550:

    Summary: GSOC: Improvements for video conferencing with limited bandwidth.  (was: GSOC:
Improbement for video conferencing with limited bandwidth.)
> GSOC: Improvements for video conferencing with limited bandwidth.
> -----------------------------------------------------------------
>                 Key: OPENMEETINGS-550
>                 URL:
>             Project: Openmeetings
>          Issue Type: Improvement
>            Reporter: Irina Arkhipets
>              Labels: gsoc2013
> The main idea of this task is to allow client to choose video quality from his side.
> I.e. client itself could influence the transferred amount of data to it.
> From the Sebastian's e-mail:
> ...
> So what could be realized is that every stream that is broadcasted from one user via
webcam to Red5/OpenMeetings will be re-transcoded into multiple streams (high, middle, low)
> So there might be some limitations to that: - "high" quality will never be better then
the original material. We can't make a picture better then the original. So all re-transcoding
will only make the original to lower quality, never to higher. - Re-transcoding has to happen
on the server side (and number of streams are limited, we can't provide a stream on the required
bandwidth "on-demand" for each user, or only with very big effort) - it will require real-time
transcoding on server side which is possible with FFMPEG and some integration into Red5. But
we would need a very specialized student that is keen and very motiviated as there is hardly
any documentation on that available in the internet. What a project makes a success is if
all participant know the potential outcome and the tools and methods that are needed to realize
that. I would be happy to put this project on our list but it will be difficult to find somebody
with the needed skills. 
> ...
> Please take a look here for more clarification:

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