Hi Gianluca, the codec is called Adobe Screensharing Codec SHA1. The codec is based on a system where it devides the screen into tiles and only transfers those tiles that have changed. That is similar to vnc or any other screen sharing codec.
The quality setting basically reduce the jpeg quality the tiles are based on and the transfered resolution. So quickly changing screen like for instance watching an HD movie are not suited for screen sharing. If you do normal desktop work your screen does not change that much and this is also the usage where you should measure bandwidth consumption. Sebastian On 3 Jul 2013 20:44, "h...@libero.it" <h...@libero.it> wrote: > It's my first post here, so first of all let me say hello :) > > I'm setting up an openmeeting server and I have some question about the > Screensharing feature. > I've read some old post by Sebastian in which he refers to 90kB/s as the > bandwith required for the upload of screensharing stream, however I've made > some measure with Allot and I see in some case a peak of over 1MB/sec... > which > codec is used to stream the sharing ? it's h323 over rtmp ? > > What's the difference between the quality settings in the screen sharing ? > which impact have on bandwith ? > Is there a way to calculate the bandwith for different screen size and > sharing > quality = i.e how many bandwidth is needed to share a 1280x1024 desktop > with > high quality ? > > Regards, > Gianluca > >
